the laboratory report fall 2014

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T he College of American Pathologists (CAP) accreditation inspection team visited several Houston Methodist entities from September 17 th to 19 th as part of the biennial accreditation process. The labora- tories at the Houston Methodist Hospital, Houston Methodist Sugar Land Hospital, Houston Methodist West Hospital, and Houston Methodist Kirby Emergency Care Center successfully retained their CAP ac- creditation. All laboratory directors noted that the 25-member inspection team from the Hospital of the University of Pennsyl- vania was very thorough and requested demonstrations of various processes pertaining to laboratory operations. “I am extremely proud of the performance of all of our Methodist facilities that were inspected. Our pathologists, technical directors, and laboratory staff deserve all of the credit for the superb job they did before and during the inspection. Special thanks to our residents and fellows for conducting two mock inspections that greatly assisted our preparation,” said James M. Musser, M.D., Ph.D., Chair of the Department of Pathology and Genomic Medicine. Mr. Manuel Hinojosa, Administrative Di- rector of Laboratory Services at Houston Methodist Hospital, added, “The Labora- tory Accreditation Program is an essential part of maintaining the highest quality of care and service for our patients. The inspection team found that the Houston Methodist Hospital system maintains many outstanding laboratory facilities.” Their thoughts were echoed by Ms. Donna Hermis, Director of the Houston Meth- odist Sugar Land Hospital laboratory, “The inspection went extremely well. The inspection team validated the excellent quality of service our laboratory provides to our patients.” Ms. Melody Peeples, Director of the Houston Methodist West Hospital laboratory, said, “The inspection was conducted in a very collegial man- ner. The accreditation team reviewed our procedures to ensure they safeguard our patients’ safety.” The CAP Laboratory Accreditation Program is internationally recognized and unique in that its inspection teams are comprised of practicing laboratory professionals. Furthermore, CAP inspec- tions go beyond regulatory compliance and assist laboratories with establishing protocols for providing the highest level of patient care and achieving standards of excellence. Together, retaining the CAP accreditation helps ensure that the Houston Methodist Hospital laboratories are providing our patients the best service possible. For more information on the CAP Laboratory Accreditation Program, please visit www.cap.org A Publication of the Department of Pathology and Genomic Medicine Houston Methodist Laboratories Pass Biennial CAP Inspection Table of Contents Upcoming Conferences: 2 New Diagnostic Procedures In Sugar Land New Diagnostics Tests From Microbiology Laboratory 3 Department Welcomes New Faculty Dr. Leveque Receives Blood Banking Award 4 Dr. Youli Zu Awarded Two Grants Dr. Mahew Cykowski Receives Award 5 Dr. Adriana Rosato Awarded NIH Grant 6 Department Hosts Special Seminars 7 Dr. Luan Truong Travels To Vietnam 8 Former Trainees: Where Are They Now? 9 In Memoriam: Donald G. Weilbaecher, M.D. The Laboratory Report Fall 2014

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Page 1: The Laboratory Report Fall 2014

The College of American Pathologists (CAP) accreditation inspection team

visited several Houston Methodist entities from September 17th to 19th as part of the biennial accreditation process. The labora-tories at the Houston Methodist Hospital, Houston Methodist Sugar Land Hospital, Houston Methodist West Hospital, and Houston Methodist Kirby Emergency Care Center successfully retained their CAP ac-creditation. All laboratory directors noted that the 25-member inspection team from the Hospital of the University of Pennsyl-vania was very thorough and requested demonstrations of various processes pertaining to laboratory operations.“I am extremely proud of the performance of all of our Methodist facilities that were inspected. Our pathologists, technical directors, and laboratory staff deserve all of the credit for the superb job they did before and during the inspection. Special thanks to our residents and fellows for conducting two mock inspections that

greatly assisted our preparation,” said James M. Musser, M.D., Ph.D., Chair of the Department of Pathology and Genomic Medicine.

Mr. Manuel Hinojosa, Administrative Di-rector of Laboratory Services at Houston Methodist Hospital, added, “The Labora-tory Accreditation Program is an essential part of maintaining the highest quality of care and service for our patients. The inspection team found that the Houston Methodist Hospital system maintains many outstanding laboratory facilities.” Their thoughts were echoed by Ms. Donna Hermis, Director of the Houston Meth-odist Sugar Land Hospital laboratory, “The inspection went extremely well. The inspection team validated the excellent quality of service our laboratory provides

to our patients.” Ms. Melody Peeples, Director of the Houston Methodist West Hospital laboratory, said, “The inspection was conducted in a very collegial man-ner. The accreditation team reviewed our procedures to ensure they safeguard our patients’ safety.”The CAP Laboratory Accreditation Program is internationally recognized and unique in that its inspection teams are comprised of practicing laboratory professionals. Furthermore, CAP inspec-tions go beyond regulatory compliance and assist laboratories with establishing protocols for providing the highest level of patient care and achieving standards of excellence. Together, retaining the CAP accreditation helps ensure that the Houston Methodist Hospital laboratories are providing our patients the best service possible. For more information on the CAP Laboratory Accreditation Program, please visit www.cap.org

A Publication of the Department of Pathology and Genomic Medicine

Houston Methodist Laboratories Pass Biennial CAP Inspection

Table of ContentsUpcoming Conferences:2 New Diagnostic Procedures In Sugar Land New Diagnostics Tests From Microbiology Laboratory

3 Department Welcomes New Faculty Dr. Leveque Receives Blood Banking Award

4 Dr. Youli Zu Awarded Two Grants Dr. Matthew Cykowski Receives Award5 Dr. Adriana Rosato Awarded NIH Grant6 Department Hosts Special Seminars7 Dr. Luan Truong Travels To Vietnam8 Former Trainees: Where Are They Now? 9 In Memoriam: Donald G. Weilbaecher, M.D.

The

Laboratory ReportFall 2014

Page 2: The Laboratory Report Fall 2014

The Microbiology Laboratory of the Houston Methodist Hospital recently vali-dated and implemented a real-time PCR assay to detect the 22 most common

gastrointestinal pathogens that cause diarrhea, including Adenovirus (type 40 and 41), Astrovirus, Campylobacter species, Clostridium difficile (Toxin A/B), Cryptosporidium species, Cyclospora cayetanensis, Entamoeba histolytica, Escherichia coli O157, Enteroaggregative E. coli, Enteropathogenic E. coli, Enterotoxigenic E. coli, Shiga-like toxin-producing E. coli, Shigella/Enteroinvasive E. coli, Giardia lamblia, Norovirus,

Plesiomonas shigelloides, Rotavirus, Salmonella species, Sapovirus, Vibrio cholerae, and Yersinia enterocolitica.

Diarrhea, which is commonly caused by an infection of the gastrointestinal tract by one or more pathogens, is a significant source of morbidity and mortality worldwide. In the United States, approximately 375 million episodes of diarrhea are estimated to occur annu-ally. Children, the elderly, and immunocompromised individuals are particularly susceptible to severe disease.

Real-time PCR is a highly sensitive and specific method to detect the presence of nucleic acid from pathogens in a clinical specimen. The new Gastrointestinal Pathogen Assay can rapidly detect organisms that are difficult to identify using traditional culture-based methods. The assay is FDA-approved and has a 4-hour turnaround time after receipt in the laboratory.

For more information on the Gastrointestinal Pathogen Assay or any Microbiology Laboratory test, please contact:

Dr. James Davis: [email protected], Dr. Randall Olsen: [email protected], or

Ms. Patricia Cernoch: [email protected]

THE LABORATORY REPORT Fall 2014Page 2

Houston Methodist Sugar Land Hospi-tal recently expanded its diagnostic

repertoire to include endobronchial (EBUS) and endoscopic (EUS) ultrasound testing. Performed in a dedicated endos-copy suite, the two procedures are non-invasive alternatives to major surgeries and are used to diagnose and stage cancer and detect infections. Both procedures are performed by a multidisciplinary team that includes a pulmonologist (EBUS) or gastroenterologist (EUS), an anesthesi-ologist, pathologist, and endoscopy staff.

The premise of the EBUS procedure is to collect lung or thoracic lymph node biopsies through a transbronchial needle aspiration guided by an ultrasound probe to allow visualization of internal

structures. Similarly, the EUS procedure obtains biopsies from tissues surround-ing the gastrointestinal tract. After the specimens are obtained and while the pa-tient is still sedated, they are rapidly and thoroughly examined by the pathologist to ensure specimen quality and determine types of cells present. “EBUS is a rapid process that provides a reliable and non-invasive alternative to performing open-chest surgery to gain access to thoracic lymph nodes,” explained Dr. Seema Mullick, Medical Director of Laboratory Services at Houston Methodist Sugar Land Hospi-tal. “We are extremely proud to be the only community hospital in the Fort Bend area to offer these highly sophisticated proce-dures to our patients,” she stated.

Both EBUS and EUS were implemented in early 2014. Currently, there are four pul-monologists and one gastroenterologist performing these procedures. However, Dr. Mullick estimates that as the hospital continues to expand, the service volume will increase.

Houston Methodist Sugar Land Hospital Implements New Diagnostic Procedures

Dr. Seema Mullick

New Tests Available from Houston Methodist Diagnostic Laboratory:Gastrointestinal Pathogen Assay

Image from www.filmarray.com

Page 3: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 3

The Department of Pathology and Genomic Medicine Welcomes Two New Faculty Members

Meredith Reyes, M.D.Associate Director of Transfusion Medicine and Co-Director of Community Pathology Laboratory Services, Houston Methodist Hospital

Dr. Meredith Reyes joined the Department of Pathology and Genomic Medicine on October 1, 2014. Dr. Reyes comes to Houston Methodist Hospital from Baylor St. Luke’s Hospital. She will

serve as Associate Director of Transfusion Medicine and Co-Director of Community Pathology Laboratory Services.Dr. Reyes received her M.D. degree and completed her residency in clinical pathology at The Uni-versity of Texas Health Science Center at Houston. Following residency, she continued her training with a fellowship in Blood Banking and Transfusion Medicine in the Department of Pathology and Immunology at Baylor College of Medicine.

Rajeev Singh, M.D., M.B.A.Director of the Tissue and Serum Biorepository, Houston Methodist Hospital and Houston Methodist Research Institute

Dr. Rajeev Singh joined the Department of Pathology and Genomic Medicine on October 13, 2014, as the Director of the Tissue and Serum Biorepository. Dr. Singh comes to Houston Methodist

Hospital and Houston Methodist Research Institute from the Singapore National University Hospi-tal, where he was Deputy Head of the Tissue Repository.Dr. Singh received his M.D. degree and Postgraduate Qualification in Pathology from the Armed Forces Medical College in Pune, India. He then earned a Masters in Business Administration from Duke University. Dr. Singh brings over 25 years experience as a general physician, pathologist, and biobanker. In his current position, Dr. Singh will work closely with Dr. David Bernard to oversee and enhance the day-to-day operations of the serum and tissue biorepository.

Dr. Christopher Leveque is Honored for his Leadership as the Medical Director of Transfusion Services

September 2014 commemorated the Gulf Coast Marrow Donor Program’s 1,000th bone mar-row collection, culminating in a celebration and an award ceremony held in Crain Garden on

September 23rd. As part of this celebration, the Gulf Coast Marrow Donor Program honored Dr. Christopher Leveque for his leadership of the Houston Methodist Hospital Blood Bank and Trans-fusion Service. Due in part to Dr. Leveque’s tireless efforts, the program continues to grow, and this year, more than 100 individuals have donated their bone marrow and stem cells. The Gulf Coast Marrow Donor Program began its partnership with the Stem Cell and Gene Therapy Program, which is operated by Houston Methodist Hospital, Baylor College of Medicine, and Texas Children’s Hospital, in 1991 by collecting bone marrow samples from unrelated donors. Working in tandem with the National Marrow Donor Registry, the program expanded in 1999 to include peripheral blood stem cell donations. For more information about the Gulf Coast Marrow Donor Program or to become a donor, please visit www.giveblood.org

Dr. Christopher Leveque (center)

Page 4: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 4

Dr. Youli Zu was recently awarded a 3-year grant from the Cancer Pre-vention and Research Institute of Texas (CPRIT) for his application

titled “Accurate and high-throughput detection of breast and ovarian cancer cells in whole blood”. His proposal aims to develop a one-step, aptamer-based assay that will identify circulating tumor cells (CTCs) in cancer patient blood.

Dissemination of cancer cells from the primary tumor to distant tis-sues and organs is the major cause of cancer-related deaths. Over the past decade, many clinical studies have shown that CTCs present in the bloodstream are associated with disease progression, recurrence, and ultimately patient survival. However, it has been a challenge to develop methods to accurately identify and enumerate CTCs due to their scar-city. To date, the only FDA-approved technology relies on a complicated, multi-step process that can lead to loss and damage of already very rare cells and takes over 20 hours to complete.

Dr. Youli Zu Awarded Two Grants to Improve Cancer Cell Detection

To address this important clinical issue, Dr. Zu and his team plan to develop a revolutionary single-step platform that will allow for rapid identification of CTCs. This new assay will be based on aptamer technology, an area of active research in Dr. Zu’s laboratory. Aptamers are short DNA or RNA sequences that function similarly to antibodies and preferentially bind their target proteins on the surface of cancer cells. Once the CTC detection technology is developed, the one-step assay will offer a system for accurate detec-tion of CTCs without a lengthy isolation protocol.

In addition to the CPRIT award, Dr. Zu and his partners at Telovision, LLC, have received a grant from the Small Business Technol-ogy Transfer Program at the National Institutes of Health. The grant, titled “A simple assay system for rapid detection of circulating tumor cells”, will provide funds to commercialize this technology.

Dr. Zu is Medical Director of Hematopathology and Director of the Cancer Pathology Laboratory in the Department of Pathology and Genomic Medicine. He is also Professor of Pathology and Laboratory Medicine at Weill Cornell Medical College of Cornell Uni-versity. For more information on Dr. Zu and his research, please visit www.houstonmethodist.org/youlizumdphd

Dr. Youli Zu

Dr. Matthew Cykowski Receives the O.T. Bailey-Helena Riggs Award

Dr. Matthew Cykowski, a neuropathol-ogy fellow in the Department of Pa-

thology and Genomic Medicine, received the Diagnostic Slide Session O.T. Bailey-Helena Riggs Award at the 90th annual meeting of the American Association of Neuropathologists. The meeting was held in Portland, Oregon, from June 12th to 15th, 2014. Dr. Cykowski presented

a case describing the involvement of the central nervous system in Chagas’ disease, a tropical disease caused by the infection with Trypanosoma cruzi, a protozoan organism spread by insects. Dr. Cyckowski is a PGY6 neuropathol-ogy fellow in the Department and plans to pursue an active research program studying neurodegenerative disorders.

Dr. Matthew Cykowski

Page 5: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 5

Dr. Adriana Rosato Awarded a Grant to Study Methicillin-Resistant Staphylococcus aureus Infections

Dr. Adriana Rosato received a grant from the National Institute of Al-

lergy and Infectious Diseases for her application titled “Molecular bases of DAP-resistance-mediated sensitization to beta-lactams in MRSA”. This study will evaluate molecular mechanisms associ-ated with daptomycin (DAP) resistance in methicillin-resistant Staphylococcus aureus (MRSA) infections.MRSA infections pose a significant health risk because they occur both in the community and in healthcare set-tings, where they can induce infections of surgical sites, bacteremia, and form biofilms. Importantly, MRSA infections are difficult to treat because these bacteria are resistant to a vast major-ity of antibiotics. DAP is a relatively new antibiotic that was FDA-approved in 2003 for treatment of systemic and life-threatening infections caused by Gram-positive bacteria, including MRSA. However, DAP-resistant MRSA strains have been recently identified.

Prior studies in Dr. Rosato’s laboratory identified several mechanisms of DAP resistance in previously-sensitive MRSA strains. Importantly, they also showed that these DAP-resistant bacteria become sensitive to oxacillin, a beta-lactam class of antibiotics, although the mechanism of this sensitization had not been identified. Studies proposed in this application will evaluate the molecular mechanisms underlying DAP resistance and oxacillin re-sensitization.Dr. Rosato is a research scientist in the Department of Pathology and Genomic Medicine at Houston Methodist Hospital and Associate Member of the Houston Methodist Research Institute. Prior to joining the Department in 2010, Dr. Rosato was Assistant Professor in the Department of Internal Medicine at Virginia Commonwealth University. For more information about Dr. Rosato’s research, please visit www.houstonmethodist.org/RosatoDr. Adriana Rosato

Houston Methodist Hospital Graduate Medical Education Office Recognizes Department Members for their Service

The Houston Methodist Hospital Graduate Medical Education (GME) Office recently acknowledged several faculty members and residents

from the Department of Pathology and Genomic Medicine for their ser-vice. Drs. Dina Mody, Suzanne Powell, and Arthur Zieske were recognized for their outstanding service and commitment to teaching cytopathology, neuropathology, and clinical pathology, respectively. Additionally, Jaclyn Jerz, M.D., a fourth-year resident in the Department, was recognized for her continued participation in GME activities. Congratulations!

Page 6: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 6

Dr. David Morens Presents a Special Seminar on Emerging Infectious Threats

The Department of Pathology and Ge-nomic Medicine hosted a special semi-

nar presented by Dr. David Morens, Senior Adviser to the Director of the National Institute of Allergy and Infectious Diseases at the National Institutes of Health on September 22, 2014. Dr. Morens’ talk, titled “Chikungunya, Ebola, and Other Emerging Threats: Emergence and Pathogenesis”, provided an overview of several types of hemorrhagic fevers that pose a significant health threat to the world, with special emphasis on the current Ebola epidemic ravishing West Africa.

Viral hemorrhagic fevers are caused by vi-ruses that belong to four distinct families. Of these, dengue virus is the most common cause of infection and death in tropical and subtropical regions of the world. Dr. Morens noted that up to 1/3 of the world’s population is at risk of contracting den-gue fever. This is especially important as international travel leads to wider dissemi-nation of previously contained, geograph-ically-localized infectious diseases. Dr. Morens also discussed the ongoing Ebola

epidemic. While previous Ebola outbreaks occurred in rural regions of Africa, most current cases have been diagnosed in urban, highly-populated areas. Since Ebola is transmitted through contact with the infected individual’s body fluids, the popu-lation density in the affected regions has contributed to the spread of the disease. Dr. Morens noted that until vaccines and better treatment strategies are developed, disease containment is the best strategy to curb further spread. Finally, he con-cluded that novel diagnostics, capable of detecting diseases during their incubation periods, are urgently needed. Three days after presenting at Methodist, Dr. Morens was detailed to West Africa to assist with the response to the Ebola outbreak.

Prior to accepting his current position at the National Institutes of Health, Dr. Morens was Professor of Tropical Medicine at the John A. Burns School of Medicine and Chairman of the Epidemiology Depart-ment at the School of Public Health at the University of Hawaii.

“It is critically important to develop novel diagnostics to identify biomark-ers of incubating infections. Until then, disease containment is our best strategy to curb further infection spread.” - Dr. David Morens

Special Seminar Announcement:“Epidemic Ebola Disease in West Africa, 2014: Personal Experience

and Observations”

The seminar will be presented by George Risi, M.D., M.Sc., on Friday, October 31st, and will be held at 2:00 p.m. in the John F. Bookout Auditorium in the Houston Methodist Research Institute (HMRI

R2-306).

Dr. Risi is the infectious disease adviser and Director of the Regional Referral Hospital and Patient Iso-lation Facility at the St. Patrick Hospital in Missoula, Montana. The facility was built about 10 years ago to supplement the biosafety level 4 laboratory at Rocky Mountain Laboratories, part of the National Institute of Allergy and Infectious Diseases.

Dr. Risi recently returned from spending four weeks with the World Health Organization in Sierra Leone caring for Ebola patients. He then spent time in Havana, Cuba, training about 165 health care workers who were traveling to West Africa to help with the Ebola epidemic.

Page 7: The Laboratory Report Fall 2014

Dr. Luan Truong Travels to Vietnam to Promote Better Management of Nephrotic Syndrome

THE LABORATORY REPORT Fall 2014Page 7

Dr. Luan Truong, Medical Director of Renal Pathology for the De-

partment of Pathology and Genomic Medicine, traveled with a group of internationally renown experts in pe-diatric nephrology to several hospitals throughout Vietnam from June 21st to July 11th. For three weeks, the group visited all major children’s hospitals in Vietnam: two in Ho Chi Minh City, one in Hue, one in Hanoi, and one in Thai Binh. At each hospital, Dr. Truong and the other visiting physicians provided medical education through formal didactic lectures, one-on-one consul-tations with local nephrologists and pathologists, and participated in ward rounds. Dr. Truong also supported the establishment of a new pediatric Lupus Club, which provides patients’ families with lectures and discussion sessions related to their disease management.

The inaugural Lupus Club meeting was held on July 3, 2014, and was a remark-able success, with 105 families in atten-dance. When asked about his impres-sion of the trip, Dr. Truong stated that he “learned more from patients, their parents, and local physicians than what he was able to teach them.”

The trip was sponsored by NephCure Kidney International, a non-profit organization committed to support-ing Nephrotic Syndrome research, and Caring and Living As Neighbors, an Australian-based, non-for-profit organization dedicated to enhancing the quality of life of children living with chronic health conditions in resource-poor countries. Dr. Truong was the only renal pathologist invited to participate in the trip.

Top: Dr. Luan Truong (far right) with his col-leagues at the Hue Central Hospital. Bottom: Meeting of the Nephrotic Club.

Ms. Minnie Chirala, a Houston Methodist Hospital laboratory histotechnologist, was selected as the Class of 2014 Clinical Instructor of the Year at The University of Texas MD Anderson Cancer Center School of Health Professions

Program in Histotechnology. “Minnie is a dedicated special stain histotechnologist guru, and we are extremely happy she was recognized by this award,” said Dr. Mary Schwartz. Congratulations!

Ms. Minnie Chirala is Named the Class of 2014 Clinical Instructor of the Year

Page 8: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 8

Dr. Jian Chen completed his resi-dency in clinical pathology and fel-

lowship in transfusion medicine and blood banking at the Department of Pathology and Genomic Medicine at Houston Methodist Hospital in 2013. He is currently Assistant Professor of Clinical Transfusion Medicine and Associate Director of the Coagulation Laboratory at the Ohio State Uni-versity College of Medicine. Dr. Chen received his M.D. from Shandong Medical University in China in 1993 and then joined the Institute of Space Medicine and Engineering, also in China, as a postgraduate research as-sociate. In 2001, he was accepted into the Department of Pathology at the University of Alabama at Birmingham (UAB), where he received his Ph.D. in 2005. He then elected to continue his research training as a postdoctoral fellow at the UAB School of Medicine. He is board certified in clinical pathol-ogy and transfusion medicine.

After completion of his residency and fellowship training, Dr. Chen was recruited to Ohio State Univer-

sity (OSU) in 2013. His clinical duties include apheresis and blood bank-ing, management of the coagulation laboratory, cytogenetics, and chem-istry signout. When asked about his new position, Dr. Chen stated, “I am enjoying my first year as an attend-ing physician. The OSU transfusion medicine service is similar to that at Houston Methodist, so I had no dif-ficulty adjusting.”

In addition to his clinical duties, Dr. Chen is an accomplished research scientist. While at UAB, his research focused on immunology and was extended to hematopoiesis as he worked with Drs. Leveque and Chan-dler at Houston Methodist Hospital. Dr. Chen has co-authored 19 peer-re-viewed articles, one book chapter, and presented his research at numerous national and international scientific meetings. As a new faculty at OSU, Dr. Chen is currently in the process of identifying a mentor who will assist him on his path to becoming an inde-pendent physician scientist.

SPOTLIGHT ON FORMER TRAINEES: Where Are They Now?

“I know that I received superior training at Houston Methodist that prepared me for my current position. I am honored to be a member of the Methodist family.” - Dr. Jian Chen

Upcoming Department of Pathology and Genomic Medicine Grand Rounds

On November 4, 2014, Dr. Maryalice Stetler-Stevenson will present her talk titled “Flow cytometric biomarkers for diagnosis and prognosis in plasma cell dyscrasia.”

Dr. Stetler-Stevenson is a staff clinician and Chief of the Flow Cytometry Unit in the Laboratory of Pathology at the Center for Cancer Research at the National Cancer Institute. Dr. Stetler-Stevenson’s research focuses on diag-nostic clinical flow cytometry and immunophenotyping of hematolymphoid malignancies.

On December 2, 2014, Dr. Chen Liu will present his work on “Alteration of genome-wide epigenomic regulation in liver carcinogenesis.”

Dr. Liu is the Associate Chair of the Department of Pathology and Director of Gastrointestinal and Liver Pathol-ogy Division at the University of Florida. His research interests encompass pathogenesis of liver and pancreatic cancers, as well as the mechanisms associated with Graft-Versus-Host Disease. His recent work defines epigen-etic changes associated with alcohol abuse and hepatitis that promote liver carcinogenesis, as well as provides experimental evidence for metabolism-induced regulation of liver cancer epigenetics.

Page 9: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014Page 9

In Memoriam: Donald G. Weilbaecher, M.D.

Dr. Donald Weilbaecher, retired Medical Director of the Autopsy Service at Houston Methodist Hospital and Associate Professor in the Department of Pathology and

Laboratory Medicine at Weill Cornell Medical College of Cornell University, passed away on September 26, 2014.

Dr. Weilbaecher received his M.D. degree and completed his clinical internship at the Louisiana State University in New Orleans. After serving in the military, he completed an anatomic and clinical pathology residency at Baylor College of Medicine (BCM), and then joined the faculty of the BCM Department of Pathology. Dr. Weilbaecher was promoted to Assistant Professor in the BCM Department of Pathology in 1979, and remained at Baylor for 25 subsequent years. In 2004, Dr. Weilbaecher joined the faculty at the Weill Cornell Medical College, and was promoted to Associate Professor in 2006. He served as Medical Director of the Autopsy Service at the Houston Methodist Hospital (HMH) for many years, and retired in 2012 at the age of 70.

Dr. Weilbaecher was an expert in cardiovascular pathology and co-authored numer-ous publications with many renowned cardiovascular surgeons, including Drs. Michael

DeBakey, Rafael Espada, and E. Stanley Crawford. He also worked closely with the former chair of the Department of Pathology at Baylor and HMH, the late Dr. Jack Titus (pictured), an internationally recognized authority on cardiovascular pathology.

In addition to his clinical and research interests, Dr. Weilbaecher had a keen interest in educating the next generation of patholo-gists. Many departmental trainees and young faculty benefited from his willingness to share his knowledge of cardiovascular pathology and autopsy.

“I have many fond memories of Dr. Weilbaecher. I had encoun-tered several problematic cases as a first year resident, and his guidance and expertise with the conduction system had helped me tremendously,” said Dr. Deborah Citron, Associate Professor of Pathology at BCM. Another formed trainee, Dr. Chris Finch, echoed these thoughts, “I will forever feel indebted to Dr. Wei-lbaecher for his kindness and gentle spirit he displayed while teaching us.” “Dr. Weilbaecher will certainly be deeply missed by all who knew and worked with him over his many years with Bay-lor and Houston Methodist Hospital,” said Dr. Rodolfo Laucirica, Professor of Pathology and Immunology at BCM.

Although Dr. Weilbaecher retired two years ago, he continues to have a presence in the HMH department, being quoted and talked about a lot. Said Dr. Mary Schwartz, Director of Anatomic Pathology at HMH, “What he taught many of us is being passed on the next generation of pathologists. He will be deeply missed.”

Drs. Donald Weilbaecher (left) and Jack Titus in the early 1980s.Image courtesy of Dr. Thomas Wheeler.

Page 10: The Laboratory Report Fall 2014

THE LABORATORY REPORT Fall 2014

Methodist Hospitals Host Breast Cancer Awareness Events

Page 10

October is breast cancer awareness month. Women in the United States have about a 12% lifetime risk of develop-

ing breast cancer, which is highly treatable when diagnosed in the early stages. To improve early diagnosis, several Houston Methodist Hospitals hosted annual breast cancer awareness events.

Houston Methodist Willowbrook Hospital hosted its second annual “Paint the Night Pink” on Wednesday, October 1, 2014. This free event featured live music, dinner, chair massages, on-site mammograms, and physician consultations. Additionally, a panel of experts discussed a variety of breast cancer-related topics, ranging from treatment strategies to procedures offered by the hospital, including innovative, padded mammo-gram machines.

Houston Methodist Sugar Land Hospital partnered with the Sugar Land Town Square for the 5th Annual “Catwalk on City Walk” fashion show. The event was held on Wednesday,

October 8, 2014, and showcased the fashion of several local boutiques. All proceeds from this fun annual event went to the Houston Methodist Sugar Land Hospital Pretty in Pink Cancer Fund, which assists local cancer patients with various non-hospital costs. Additionally, during the month of October, Veritas Steak and Seafood restaurant in Town Square is of-fering a unique Pretty in Pink menu, with a portion of the sales also donated to the Pretty in Pink Cancer Fund.

Houston Methodist West Hospital hosted its annual “Positive-ly Pink” event on Saturday, October 18, 2014. This free, family-fun event aimed to raise breast cancer awareness and pro-mote disease prevention. Positively Pink featured live music, food, children’s activities, and shopping booths. Additionally, the hospital’s breast cancer physician team provided comple-mentary health screenings and information on nutrition, stress reduction, and cancer prevention. Visitors were able to visit with the hospital’s women’s health specialists and sign up for their annual mammograms.

Clockwise from upper left: Houston Methodist Willowbrook Hospital, Houston Methodist Hospital, and Houston Methodist Sugar Land Hospi-tal buildings are accented in pink in observance of breast cancer awareness month. Image courtesy of Houston Methodist Facebook page.

Page 11: The Laboratory Report Fall 2014

RECENT PUBLICATIONS

THE LABORATORY REPORT Fall 2014Page 11

• Akhtari M, Quesada JR, Schwartz MR, Chiang SB, Teh BS. Sarcoidosis presenting as metastatic lymphadenopathy in breast cancer. Clin Breast Cancer. 2014 Oct;14(5):e107-10.

• Castro-Rojas C, Deason K, Hussain RZ, Hayardeny L, Cravens PC, Yarovinsky F, Eagar TN, Arellano B, Stüve O. Testing effects of glatiramer acetate and fingolimod in an infectious model of CNS immune surveillance. J Neuroimmunol. 2014 Sep 2. [Epub ahead of print]

• Cheng Y, Xie H, Sule P, Hassounah H, Graviss EA, Kong Y, Cirillo JD, Rao J. Fluorogenic probes with substitutions at the 2 and 7 positions of cephalosporin are highly BlaC-specific for rapid Mycobacterium tuberculosis detection. Angew Chem Int Ed Engl. 2014 Aug 25;53(35):9360-4.

• Choi EK, Chévez-Barrios P. Inflamed conjunctival nevi: histopathological criteria. Arch Pathol Lab Med. 2014 Sep;138(9):1242-6.

• Clement CG, Truong LD. An evaluation of Congo red fluorescence for the diagnosis of amyloidosis. Hum Pathol. 2014 Aug;45(8):1766-72.

• Cruz AT, Marape M, Graviss EA, Starke JR. Performance of the QuantiFERON-TB gold interferon gamma release assay among HIV-infected children in Botswana. J Int Assoc Provid AIDS Care. 2014 Aug 22. [Epub ahead of print]

• Cykowski MD, Hicks J, Sandberg DI, Olar A, Bridge JA, Greipp PT, Navarro P, Kolodziej S, Bhattacharjee MB. Brain metastasis of crystal-defi-cient, CD68-positive alveolar soft part sarcoma: ultrastructural features and differential diagnosis. Ultrastruct Pathol. 2014 Sep 30:1-9. [Epub ahead of print]

• DiLorenzo DJ, Jankovic J, Simpson RK, Takei H, Powell SZ. Neurohistopathological findings at the electrode-tissue interface in long-term deep brain stimulation: systematic literature review, case report, and assessment of stimulation threshold safety. Neuromodulation. 2014 Jul;17(5):405-18; discussion 418.

• Fernandez R, Paz LI, Rosato RR, Rosato AE. Ceftaroline is active against heteroresistant methicillin-resistant Staphylococcus aureus clinical strains despite associated mutational mechanisms and intermediate levels of resistance. Antimicrob Agents Chemother. 2014 Oct;58(10):5736-46.

• Fiskus W, Sharma S, Qi J, Shah B, Devaraj SG, Leveque C, Portier BP, Iyer S, Bradner JE, Bhalla KN. BET protein antagonist JQ1 is synergistically lethal with FLT3 tyrosine kinase inhibitor (TKI) and overcomes resistance to FLT3-TKI in AML cells expressing FLT-ITD. Mol Cancer Ther. 2014 Oct;13(10):2315-27.

• Flores AR, Jewell BE, Olsen RJ, Shelburne SA 3rd, Fittipaldi N, Beres SB, Musser JM. Asymptomatic carriage of group A streptococcus is as-sociated with elimination of capsule production. Infect Immun. 2014 Sep;82(9):3958-67.

• Gaber L, Seshan S, Truong L. Renal transplant pathology: review and update. Pathology. 2014 Oct;46 Suppl 2:S40.

• Galfione SK, Ro JY, Ayala AG, Ge Y. Diagnostic utility of WT-1 cytoplasmic stain in variety of vascular lesions. Int J Clin Exp Pathol. 2014 Apr 15;7(5):2536-43.

• Ghodsizad A, Bordel V, Wiedensohler H, Elbanayosy A, Koerner MM, Gonzalez Berjon JM, Barrios R, Farag M, Zeriouh M, Loebe M, Noon GP, Koegler G, Karck M, Ruhparwar A. Magnetically guided recellularization of decellularized stented porcine pericardium-derived aortic valve for TAVI. ASAIO J. 2014 Sep-Oct;60(5):582-6.

• Guo J, Tretiakova MS, Troxell ML, Osunkoya AO, Fadare O, Sangoi AR, Shen SS, Lopez-Beltran A, Mehra R, Heider A, Higgins JP, Harik LR, Leroy X, Gill AJ, Trpkov K, Campbell SC, Przybycin C, Magi-Galluzzi C, McKenney JK. Tuberous sclerosis-associated renal cell carcinoma: a clinico-pathologic study of 57 separate carcinomas in 18 patients. Am J Surg Pathol. 2014 Nov;38(11):1457-67.

• Howley MM, Painter JA, Katz DJ, Graviss EA, Reves R, Beavers SF, Garrett DO; for the Tuberculosis Epidemiologic Studies Consortium. Evalu-ation of QuantiFERON-TB gold in-tube and tuberculin skin tests among immigrant children being screened for latent tuberculosis infection. Pediatr Infect Dis J. 2014 Aug 4. [Epub ahead of print]

• Hussain RZ, Hayardeny L, Cravens PC, Yarovinsky F, Eagar TN, Arellano B, Deason K, Castro-Rojas C, Stüve O. Immune surveillance of the cen-tral nervous system in multiple sclerosis - relevance for therapy and experimental models. J Neuroimmunol. 2014 Aug 30. [Epub ahead of print]

• Ipe TS, Wilkes JJ, Hartung HD, Westhoff CM, Chou ST, Friedman DF. Severe hemolytic transfusion reaction due to anti-D in a D+ patient with sickle cell disease. J Pediatr Hematol Oncol. 2014 Aug 28. [Epub ahead of print]

• Jing H, Tan W, Deng Y, Gao D, Li L, Lu Z, Graviss EA, Ma X. Diagnostic delay of pulmonary nontuberculous mycobacterial infection in China. Multidiscip Respir Med. 2014 Sep 11;9(1):48.

• Kaleta E, Kyle R, Clark R, Katzmann J. Analysis of patients with gamma-heavy chain disease by the heavy/light chain and free light chain assays. Clin Chem Lab Med. 2014 May;52(5):665-9.

• Kim SJ, Lee HW, Gu Kang H, La SH, Choi IJ, Ro JY, Bresalier RS, Song J, Chun KH. Ablation of galectin-3 induces p27(KIP1)-dependent premature senescence without oncogenic stress. Cell Death Differ. 2014 Nov;21(11):1769-79.

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• Knight RJ, Teeter LD, Graviss EA, Patel SJ, DeVos JM, Moore LW, Gaber AO. Barriers to preemptive renal transplantation: a single center ques-tionnaire study. Transplantation. 2014 Jul 31. [Epub ahead of print]

• Kryvenko ON, Haley SL, Smith SC, Shen SS, Paluru S, Gupta NS, Jorda M, Epstein JI, Amin MB, Truong LD. Haemangiomas in kidneys with end-stage renal disease: a novel clinicopathological association. Histopathology. 2014 Sep;65(3):309-18.

• Li F, Jiang S, Zu Y, Lee DY, Li Z. A tyrosine kinase inhibitor-based high-affinity PET radiopharmaceutical targets vascular endothelial growth factor receptor. J Nucl Med. 2014 Sep;55(9):1525-31.

• Li X, Schwartz MR, Ro J, Hamilton CR, Ayala AG, Truong LD, Zhai QJ. Diagnostic utility of E-cadherin and P120 catenin cocktail immunostain in distinguishing DCIS from LCIS. Int J Clin Exp Pathol. 2014 Apr 15;7(5):2551-7.

• Long SW, Beres SB, Olsen RJ, Musser JM. Absence of patient-to-patient intrahospital transmission of Staphylococcus aureus as determined by whole-genome sequencing. MBio. 2014 Oct 7;5(5).

• Long SW, Olsen RJ, Mehta SC, Palzkill TG, Cernoch PL, Perez KK, Musick WL, Rosato AE, Musser JM. PBP2a mutations causing high-level cef-taroline resistance in clinical methicillin-resistant Staphylococcus aureus isolates. Antimicrob Agents Chemother. 2014 Aug 25. [Epub ahead of print]

• Mishra DK, Scott KL, Wardwell-Ozgo JM, Thrall MJ, Kim MP. Circulating tumor cells from 4D model have less integrin beta 4 expression. J Surg Res. 2014 Aug 20. [Epub ahead of print]

• Miyai K, Kristiansen A, Egevad L, Pina-Oviedo S, Divatia MK, Shen SS, Miles BJ, Ayala AG, Park YW, Ro JY. Seminal vesicle intraepithelial involvement by prostate cancer: putative mechanism and clinicopathological significance. Hum Pathol. 2014 Sep;45(9):1805-12.

• Miyai K, Divatia MK, Shen SS, Miles BJ, Ayala AG, Ro JY. Heterogeneous clinicopathological features of intraductal carcinoma of the prostate: a comparison between “precursor-like” and “regular type” lesions. Int J Clin Exp Pathol. 2014 Apr 15;7(5):2518-26.

• Moriarty AT, Nayar R, Auger M, Kurtycz DF, Thomas N, Laucirica R, Padmanabhan V, Souers RJ, Schwartz MR, Fraig MM. Nongynecologic cytol-ogy practice patterns: a survey of participants in the College of American Pathologists interlaboratory comparison program in nongynecologic cytopathology. Arch Pathol Lab Med. 2014 Jul;138(7):885-9.

• Mukherjee M, Byrd T, Brawley VS, Bielamowicz K, Li XN, Merchant F, Maitra S, Sumazin P, Fuller G, Kew Y, Sun D, Powell SZ, Ahmed NM, Zhang N, Pati D. Overexpression and constitutive nuclear localization of cohesin protease Separase protein correlates with high incidence of relapse and reduced overall survival in glioblastoma multiforme. J Neurooncol. 2014 Aug;119(1):27-35.

• Nelles NJ, Chandler WL. Platelet mapping assay interference due to platelet activation in heparinized samples. Am J Clin Pathol. 2014 Sep;142(3):331-8.

• Olsen RJ, Fittipaldi N, Kachroo P, Sanson MA, Long SW, Como-Sabetti KJ, Valson C, Cantu C, Lynfield R, Van Beneden C, Beres SB, Musser JM. Clinical laboratory response to a mock outbreak of invasive bacterial infections: a preparedness study. J Clin Microbiol. 2014 Sep 24. [Epub ahead of print]

• Panageas KS, Reiner AS, Iwamoto FM, Cloughesy TF, Aldape KD, Rivera AL, Eichler AF, Louis DN, Paleologos NA, Fisher BJ, Ashby LS, Cairn-cross JG, Roldán Urgoiti GB, Wen PY, Ligon KL, Schiff D, Robins HI, Rocque BG, Chamberlain MC, Mason WP, Weaver SA, Green RM, Kamar FG, Abrey LE, DeAngelis LM, Jhanwar SC, Rosenblum MK, Lassman AB. Recursive partitioning analysis of prognostic variables in newly diagnosed anaplastic oligodendroglial tumors. Neuro Oncol. 2014 Jul 4. [Epub ahead of print]

• Park HS, Bae YS, Yoon SO, Lim BJ, Hong HJ, Ro JY, Hong SW. Usefulness of Nuclear Protein in Testis (NUT) immunohistochemistry in the cyto-diagnosis of NUT midline carcinoma: a brief case report. Korean J Pathol. 2014 Aug;48(4):335-8.

• Rosato RR, Fernandez R, Paz LI, Singh CR, Rosato AE. TCA cycle-mediated generation of ROS is a key mediator for HeR-MRSA survival under beta-lactam antibiotic exposure. PLoS One. 2014 Jun 16;9(6):e99605.

• Safdar Z, Tamez E, Chan W, Arya B, Ge Y, Deswal A, Bozkurt B, Frost A, Entman M. Circulating collagen biomarkers as indicators of disease severity in pulmonary arterial hypertension. JACC Heart Fail. 2014 Aug;2(4):412-21.

• Song Y, Xia X, Wu X, Wang P, Qin L. Integration of platinum nanoparticles with a volumetric bar-chart chip for biomarker assays. Angew Chem Int Ed Engl. 2014 Jul 17. [Epub ahead of print]

• Sun H, Zhu X, Lu PY, Rosato RR, Tan W, Zu Y. Oligonucleotide aptamers: new tools for targeted cancer therapy. Mol Ther Nucleic Acids. 2014 Aug 5;3:e182.

• Thrall MJ, Rivera AL, Takei H, Powell SZ. Validation of a novel robotic telepathology platform for neuropathology intraoperative touch prepara-tions. J Pathol Inform. 2014 Jul 28;5:21.

• Vishnoi M, Mishra DK, Thrall MJ, Kurie JM, Kim MP. Circulating tumor cells from a 4-dimensional lung cancer model are resistant to cisplatin. J Thorac Cardiovasc Surg. 2014 Sep;148(3):1056-63; discussion 1063-4.

• von Rundstedt FC, Lerner SP, Godoy G, Amiel G, Wheeler TM, Truong LD, Shen SS. Utility of transurethral biopsy in staging the prostatic ure-thra prior to radical cystectomy. J Urol. 2014 Aug 12. [Epub ahead of print]

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THE LABORATORY REPORT is a publica-tion of the Houston Methodist Department of Pathology and Genomic Medicine

Editor-in-ChiefApril Ewton, MD

Editorial CommitteeHazel Awalt, MDChristopher Leveque, MDClaudia Molina, MDSeema Mullick, MDThu Ngo, MDSteven Shen, MD, PhDPing Wang, PhD

Editorial CoordinatorYekaterina Khotskaya, PhD

Department ChairJames M. Musser, MD, PhD

Houston Methodist HospitalClare Lee, MBAManuel Hinojosa, MHA

• Wen J, Tao W, Kuiatse I, Lin P, Feng Y, Jones RJ, Orlowski RZ, Zu Y. Dynamic balance of multiple myeloma clonogenic side population cell per centages controlled by environmental conditions. Int J Cancer. 2014 Jul 15. [Epub ahead of print]

• Zeng Z, Parekh P, Li Z, Shi ZZ, Tung CH, Zu Y. Specific and sensitive tumor imaging using biostable oligonucleotide aptamer probes. Theranos-tics. 2014 Jul 19;4(9):945-52.

• Zeng Z, Tung CH, Zu Y. A cancer cell-activatable aptamer-reporter system for one-step assay of circulating tumor cells. Mol Ther Nucleic Acids. 2014 Aug 12;3:e184.