Members

Current Members

  • Wen Dun, MD, PhD

    Associate Research Scientist

    Education and Training

    • MD, Shanxi Medical University
    • MS, Pharmacology, Shanxi Medical University
    • PhD, Physiology, Shanxi Medical University
    • Postdoctoral fellow, Laboratory of Gea-Ny Tseng, Columbia University
    • Postdoctoral fellow, Laboratory of Penelope Boyden, Columbia University

     

    Over the past two decades, Dr. Dun dedicated her professional career to determining the electrophysiological and structural basis of abnormal heart rhythms. She now applies her expertise in molecular electrophysiology to understanding how soluble guanylyl cyclase regulates ion channel signaling within specific membrane microdomains, in the failing heart. Dr. Dun also leads many of the in vivo and ex vivo cardiac functional and physiological studies of the Tsai lab.

    Headshot of Wen Dun, MD, PhD Associate Research Scientist.
  • Christos Tzimas, PhD

    Postdoctoral Research Scientist

    Education and Training

    • PhD, Molecular Biology, Aristotle University of Thessaloniki
    • Postdoctoral fellow, Laboratory of Anthony J. Capobianco, Wistar Institute
    • Postdoctoral fellow, Laboratory of Serge Fuchs, University of Pennsylvania
    • Postdoctoral fellow, Laboratory of Despina Sanoudou and Evangelia Kranias, Biomedical Research Foundation of the Academy of Athens

     

    Dr. Tzimas’ research background spans cancer biology and cardiovascular biology. For his doctoral thesis, Dr. Tzimas studied ubiquitin and transcription factor NF-κB signaling. His initial postdoctoral training in cancer biology focused around molecular mechanisms of oncogenesis in animal models and in the role of peptide hormone and cytokine receptor degradation in physiological and pathological conditions. In subsequent postdoctoral training in cardiovascular science, Dr. Tzimas studied the role of calcium homeostasis in the pathophysiology of cardiac disease and the molecular mechanisms of arrhythmogenesis in animal models. In the Tsai Lab, Dr. Tzimas is working on elucidating differential mechanisms of soluble guanylyl cyclase signaling within caveolae and dyadic junctions of cardiac myocytes, including post-translational modifications that govern its subcellular localization and cyclase activity. He is also pursuing projects in the lab that focus on the molecular signaling of right ventricular dysfunction and right heart failure

    Headshot of Christos Tzimas, PhD Postdoctoral Research Scientist.
  • Petra Buergisser, MSc

    Senior Research Technician/Laboratory Manager

    Education and Training

    MSc, Biology of Disease, Utrecht University, the Netherlands

    BS, Biology, Utrecht University, the Netherlands

    Ms. Beurgisser supports the laboratory in animal husbandry, genotyping, primary cardiac myocyte and fibroblast cell culture, and molecular and cell biology studies.

Past Members of the Tsai Lab

  • Jeffrey Chukwuneke

    Summer Research Trainee on NIH T35 Training Grant

    MD candidate, Class of 2018
    Columbia University Vagelos College of Physicians & Surgeons

  • Gaston Jean-Louis, Jr.

    Summer Research Trainee on NIH T35 Training Grant

    MD candidate, Class of 2020
    Columbia University Vagelos College of Physicians & Surgeons

  • Julianne Kleitsch

    Student research trainee

    Postbaccalaureate Premedical Program, Class of 2018
    Columbia University

     

  • Katie Lee

    Masters thesis research

    MS, Nutrition Science, Class of 2016
    Columbia University Vagelos College of Physicians & Surgeons
    MD candidate, SUNY Downstate, Class of 2020

     

  • Yanan Liu, PhD

    Postdoctoral Research Scientist

  • Haejung Chung, MA, MS

    Senior Research Assistant

    Education and Training

    MS, Nutrition Science, Ewha Womens University, Seol, Korea

    MA, Nutrition Science, Kansas State University

    Ms. Chung previously supported the laboratory in animal husbandry, genotyping, primary cardiac myocyte and fibroblast cell culture, and routine molecular techniques.

  • Sowda Ahmed

    Summer Research Trainee on NIH T35 Training Grant

    MD candidate, Class of 2021

    University of Minnesota Medical School