Prof. Deb Siwik






    PHOTO OF DR. SIWIK

 

    Deborah A. Siwik, Ph.D.

    Research Assistant Professor
    Myocardial Biology, X747
    Boston University Medical Center
    650 Albany Street
    Boston, MA 02118
    Phone: (617) 638-8022
    Fax: (617) 638-8081
    email: dasiwik@bu.edu



About Me:

Deborah A. Siwik, Ph.D., is a Prinicipal Investigator in the Whitaker Cardiovascular Institute, and the Lab Director of the Myocardial Biology Unit. She received her Ph.D. in Pharmacology from the University of Illinois at Chicago and her post-doctoral training at Brigham and Women's Hospital and Harvard Medical School and at Boston University.

 


Research:

Dr. Siwik is currently investigating the regulation of the myocardial extracellular matrix and the effects of oxidative stress on the myocardium. A major focus is to understand the roles of nitric oxide, oxidative stress, and inflammatory cytokines in mediating changes in extracellular matrix.

The overall focus of the Myocardial Biology Laboratory is to understand the roles of reactive oxygen species in mediating myocyte phenotype via their effects on cell growth, gene expression and apoptosis. Recently, they have demonstrated that oxidative stress, mechanical deformation and catecholamines can induce both hypertrophic growth and apoptosis in cardiac myocytes. Parallel studies are being performed in vitro and in vivo using cultured cardiac myocytes and genetically-modified mice, respectively in order to determine the relationship between the molecular/cellular events involved in cardiac remodeling and alterations in physiological function that can be assessed at the single myocyte and whole heart level in transgenic and knock-out mice. As part of the Cardiovascular Proteomics Center, the lab is identifying chemical modifications of proteins formed by reactive oxygen, nitrogen, and lipid species that may contribute to pathology and serve as better markers for disease severity.



Student Research:

Dr. Siwik regularly accepts students for training. More information can be found at the Boston University Undergraduate Research Opportunities Program web site.



Recent Publications:

EMMPRIN Mediates Beta-Adrenergic Receptor-Stimulated Matrix Metalloproteinase Activity in Cardiac Myocytes. Siwik DA, Kuster GM, Brahmbhatt JV, Zaidi Z, Malik J, Ooi H, Ghorayeb G, 2008. J Mol Cell Cardiol 44(1)210-217.

Relations of Matrix Remodeling Biomarkers to Blood Pressure Progression and Incidence of Hypertension in the Community. Dhingra R, Pencina MJ, Schrader P, Wang TJ, Levy D, Meigs J, Pencina K, Sundstrom J, Siwik DA, Colucci WS, Benjamin EJ, Vasan RS, 2009. Circulation 119(8):1101-1107.

Nitroxyl Anion Activates SERCA in Cardiac Myocytes via Glutathiolation of Cysteine 674. Lancel S, Zhang J, Evangelista A, Trucillo MP, Siwik DA, Cohen RA, Colucci WS, 2009. Circ Res 104(6):720-723.

Enhanced exercise capacity in mice with severe heart failure treated with a novel allosteric effector of hemoglobin, ITPP. Biolo A, Greferath R, Siwik DA, Qin F, Valsky E, Fylaktakidou KC, Pothukanuri S, Duarte CD, Schwartz RP, Lehn J-M, Nicolau C, Colucci WS, 2009. Proc Natl Acad Sci USA 106(6):1926-1929.


Links:

Link to Whitaker Cardiovascular Institute Homepage

Link to Cardiovascular Proteomics Center Homepage

Link to Boston University Undergraduate Research Opportunities Program (UROP) Homepage


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Last modified 06/16/2009