Helen Piwnica-Worms, Ph.D. 
hpiwnica-worms@mdanderson.org
Professor

Piwnica-Worms completed a BA degree in biology at St. Olaf College (1979) in Northfield, MN, a Ph.D. degree in microbiology and immunology at Duke University Medical School (1984) in Durham, NC, and a postdoctoral fellowship in pathology at Dana-Farber Cancer Institute (1988) in Boston, MA. She served as Instructor of Pathology at Harvard Medical School and Dana-Farber Cancer Institute from 1988. She then joined Tufts University Medical School (Boston, MA), as an Assistant Professor of Physiology (1989-1992). 

In 1992, Piwnica-Worms was recruited to Harvard Medical School and Beth Israel Hospital, where she was Assistant and then Associate Professor of Microbiology and Molecular Genetics (1992-1994). In 1994, she moved to Washington University School of Medicine in St. Louis, MO, where she was the Gerty T. Cori Professor and Chair of Cell Biology and Physiology and Professor of Internal Medicine. She also served as Associate Director of Basic Science at the Alvin J. Siteman Cancer Center and co-directed the BRIGHT Institute.

Piwnica-Worms is a Professor of Department of Experimental Radiation Oncology at The University of Texas MD Anderson Cancer Center (Houston, TX) since 2013.

Shi-Rong Cai, M.D. 
SCai1@mdanderson.org
Senior Research Scientist

Shi-Rong Cai obtained an M.D. degree from Shanghai Second Medical University in Shanghai, China. He was a resident, physician (surgeon), and vice-chief surgeon in the Department of Surgery, Shanghai Zha Bei Central Hospital, (Shanghai, China) for 12 years. Cai transferred to Washington University School of Medicine in 1994, where he was a research associate, research scientist, and senior scientist. He established mouse cancer models (such as breast, prostate, colon, lung, and liver cancer and metastasis), developed multiple immunochemical and immunofluorescence staining methods for tumor biomarker studies, and used DNA-damaging agents, in combination with Chk1 inhibitors, to evaluate the potential therapeutic effect of drugs in vivo.

Cai relocated to MD Anderson in 2013. His research interest is the development of cancer models for preclinical translational studies. He has established several human-in-mouse tumor lines. Currently, he is using orthotropic PDX mouse models of human TNBC to determine the therapeutic effect of Chk1 and PARP inhibitors, in combination with several DNA-damaging agents, on breast cancer with different p53 and PARP statuses.

Jiansu Shao, M.D. 
JShao@mdanderson.org
Senior Research Scientist

Jiansu Shao obtained an M.D. degree from Shanghai Medical University in Shanghai, China, and completed her medical residency and forensic pathology fellowship at Shanghai Medical School and East China University of Political Science and Law (Shanghai, China). Shao underwent professional electron microscopy training as a researcher at the World Health Organization Central institute for Electron Microscopic Research at Nippon Medical School in Tokyo, Japan. In 1994, Shao transferred to Washington University School of Medicine, where she worked in the Internal Medicine department as a research associate, research scientist and later instructor.

Shao relocated to MD Anderson in 2013. Her research is focused on using PDX models and bioluminescence imaging to study the development of breast cancer metastasis. She also uses immunochemical methods to evaluate the functional gene expression of metastasis.

Yizheng Tu, M.D., Ph.D.
YTu1@mdanderson.org 
Senior Research Scientist

Yizheng Tu completed his M.D. degree at Jilin Medical University in Changchun, China and received a Ph.D. degree in cancer immunotherapy in Shanghai Second Medical University. He was a surgeon and an attending physician in the Surgery department at Jilin Medical University and Hospital of Hainan Province in China. In 1991, Tu focused his research career on cancer and organ transplantation in the Surgery department, University of Texas Medical School at Houston. Since 1994, as a research associate or senior scientist, Yizheng focused on animal models and projects focused on new drug discoveries in organ transplantation, autoimmune disease and cancer at Washington University School of Medicine in St. Louis, MO and Astellas Pharmaceutical Company in Chicago, IL. Tu joined the Piwnica-Worms Laboratory in February 2015 and is involved in the development of PDX models.

Yan (Janie) Jiang, Ph.D.
Yjiang5@mdanderson.org
Senior Research Scientist

Yan (Janie) Jiang obtained her B.S. and M.S. from Sichuan University in China. Then she pursued her Ph.D. degree in the Food and Nutrition department from Purdue University at West Lafayette, Indiana. Upon graduation, Janie completed her postdoctoral training at the University of Michigan in Ann Arbor, Michigan. Janie became a research scientist and focused her research on breast cancer prevention and drug development at MD Anderson since 2013. After joining the Helen Piwnica-Worms Laboratory in 2018, Janie is overseeing the breast cancer PDX core operation in the group and acting as a lab manager.
 

Sabrina Jeter-Jones 
SLJeter@mdanderson.org
Research Investigator

Jeter-Jones received her B.S. degree in chemistry from Sam Houston State University (Huntsville, TX) and is an alumni of the University of Oklahoma (Norman, OK). She spent 10 years at Lexicon Pharmaceuticals (The Woodlands, TX), investigating novel therapeutic targets for obesity, diabetes, and osteoporosis.

She joined the Piwnica-Worms Laboratory in June 2014.

Xinhui Zhou, M.S.
xizhou@mdanderson.org
Research Investigator

Xinhui Zhou received her B.S in Biology from Xiamen University (Xiamen, China) and M.S in Molecular Biology from The University of Texas Health Science Center at Houston in 1997. Her previous research projects at MD Anderson involved the functional study of the Migration and Invasion Inhibitor Protein (MIIP) gene in CRC and gene cooperation in glioma progression, as well as quantitative trait loci (QTL) studies on radiation- and bleomycin-induced murine pulmonary fibrosis through genome-wide scan to fibrosis-prone and fibrosis-resistant mouse model. Xinhui joined the Piwnica-Worms Lab in March 2016.

Xiaomei Zhang, Ph.D.
xzhang22@mdanderson.org
Research Investigator

Xiaomei Zhang earned a Ph.D. degree in preventive veterinary medicine from China Agricultural University (Beijing, China) in 2000. She spent over 13 years in the Lester and Sue Smith Breast Center at Baylor College of Medicine (Houston, TX). Her research projects at BCM focused on the establishment and characterization of patient-derived xenograft (PDX) model of human breast cancer, as well as studying novel therapeutic targets for breast cancer using PDX models.

She joined the Piwnica-Worms Laboratory in November 2016.

Kristina Stemler, Ph.D. 
KMStemler@mdanderson.org
Postdoctoral Fellow

Stemler completed her thesis work in 2013 in the laboratory of Indira U. Mysorekar, Ph.D., at Washington University School of Medicine, where she studied the differential effects of infectious versus chemical bladder injury models on epithelial repair and pain.

Stemler joined the Piwnica-Worms Laboratory in the fall of 2013; her current research is focused on improving the quality of life of cancer patients by mitigating the side effects of chemotherapy. She is using a mouse model to identify the mechanisms of fasting-induced protection and applying that knowledge to various cancer models, including TNBC and prostate cancer.

Abena Redwood, Ph.D. 
ABRedwood@mdanderson.org
Postdoctoral Fellow

Redwood completed her Ph.D. degree in 2012 in the Department of Radiation Oncology at Washington University, under the mentorship of Susana Gonzalo, Ph.D. During her graduate training she studied how A-type lamins, nuclear proteins that are implicated in premature aging and cancer, affect genomic stability and telomere metabolism in mammalian cells. Following one and a half years as a Presidential Postdoctoral Fellow at the Novartis Institutes for Biomedical Research in the department of cancer biology, Redwood joined the Piwnica-Worms Laboratory at MD Anderson in 2013. She uses orthotopic PDX models to investigate the use of molecularly targeted therapies for patients with TNBC.

Gloria Echeverria, Ph.D. 
GVEcheverria@mdanderson.org
Postdoctoral Fellow

Echeverria completed a Ph.D. degree in the Tom Cooper, M.D., Laboratory at Baylor College of Medicine (Houston, TX) in 2013. Her thesis project was focused on the alternative pre-mRNA splicing of exons that are dis-regulated in myotonic dystrophy. She characterized the biochemical mechanism that MBNL1 uses to communicate with the cellular splicing machinery and activate the inclusion of exon 11 of the insulin receptor gene, a splicing event that is disrupted in patients and is linked to aberrant insulin signaling.

Echeverria began her postdoctoral training at MD Anderson in the Helen Piwnica-Worms Laboratory in January 2014. She is studying triple-negative breast cancer (TNBC) using PDX models that were developed using human TNBC tissue samples. Her project’s goal is to identify tumor-initiating cells and characterize their role in the development of chemoresistance after neo-adjuvant chemotherapy.

Vidya Sinha, Ph.D. 
VSinha@mdanderson.org  
Postdoctoral Fellow

Sinha attained her Ph.D. degree in Molecular Biology from Baylor College of Medicine (Houston, TX) in 2014, for work in breast cancer biology, under the guidance of Yi Li, Ph.D. Her thesis work centered on understanding the mechanisms governing breast cancer initiation and growth, with specific focus on the roles of senescence, the ARF/p53 axis, initiating oncogenes, and cells-of-origin in the genesis and progression of premalignant mammary lesions. Sinha joined the Piwnica-Worms’ Laboratory at MD Anderson Cancer Center in 2015 and is studying the role of mutation order in shaping tumor physiology.

Amanda Rinkenbaugh, Ph.D.
ALRinkenbaugh@mdanderson.org
Postdoctoral Fellow

Amanda Rinkenbaugh earned a Ph.D. in Molecular and Cellular Pathology from the University of North Carolina (Chapel Hill, NC) in 2016. Her thesis work, under the guidance of Dr. Albert Baldwin, focused on the involvement of NF-kappaB signaling in the maintenance of cancer stem cells in glioblastoma. She joined the Piwnica-Worms’ Laboratory at MD Anderson Cancer Center in 2016 and is utilizing imaging mass cytometry to dissect signaling heterogeneity within triple negative breast cancer PDX models, with an emphasis on models of chemoresistance and metastasis.
 

Miramar de la Cruz Bonilla, B.S. 
MDe4@mdanderson.org  
Graduate Student

Marimar de la Cruz Bonilla completed her B.S. degree in Biology from the University of Puerto Rico (Mayagüez, PR) in 2011. As an undergrad she researched the cell death pathways employed by cancer cells after treatment with magnetic fluid hyperthermia. She is currently pursuing a joint M.D./Ph.D. program between the University of Puerto Rico School of Medicine and the Graduate School of Biomedical Sciences at the University of Texas. After completing three years of medical school in Puerto Rico, she came to Houston to pursue her thesis work. She joined the Piwnica-Worms Laboratory in 2015 and will study the mechanisms by which fasting conveys radioprotection in order to apply that knowledge to tumor models.