Tucson Myofilament Meeting, May 23-26

The Tucson Myofilament Meeting is an international 3.5-day Sarver Heart Center conference that brings together approximately 250 scientists focused on the structure and function of the myofilaments that comprise the contractile machinery of muscle. Spanning topics from molecular biophysics to heart and skeletal muscle disease mechanisms and drug development, the meeting is known for its highly interactive, collaborative, and informal atmosphere, with strong engagement of early career investigators.

Traditionally held biennially at the University of Wisconsin, the meeting will continue at the University of Arizona beginning in May 2026, offering a distinctive Tucson setting that fosters scientific exchange and community building.

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Marlys H. Witte, MD

Director, Medical Student Research Program
Director, Lymphology Laboratories
Professor of Surgery
Professor of Neurosurgery
Professor of Pediatrics

Dr. Marlys Witte, MD is a long standing faculty member in the College of Medicine, Department of Surgery.  During her career she has mentored hundreds of students supported by a continuous sequence of NIH multi-institute training grants acquired since 1982. These NIH research pipeline/ training grants, an earlier federally funded nationwide “Women in Medical Academia” project organized in the mid-1970's, and service reflect a long-standing commitment to leadership training, equity, diversity, and disadvantaged populations including but not limited to underrepresented ethnic minorities, women, and the disabled.  Her educational activities have an overlying theme of “medical ignorance” – “what we know we don’t know, don’t know we don’t know, and think we know but don’t,” which aims to nurture “curiosity” (an “addiction” to ignorance/ unanswered questions-unquestioned answers).

Research Interests: 

Extensive activities in clinical and basic lymphology – the study of lymphatics, lymph, lymphocytes, and lymph nodes in health and disease. Translational interests and contributions have spanned blood/lymphatic vascular endothelial cell biology and pathobiology in vitro and in vivo, hepatosplanchnic lymphatic/microcirculatory physiology, small animal models, in vivo lymphatic imaging, thoracic duct lymph drainage, lymphogenous cancer spread, and genomics/proteomics of lymphedema-angiodysplasia syndromes in man and experimental models, including defects, deficiency, and overexpression of human and murine lymphangio- gene¬sis genes and their syndromic/phenotypic manifestations.

Board Certifications: 
American Board of Internal Medicine, 1967
Degrees: 
MD: New York University School of Medicine, 1960
Internships: 
North Carolina Memorial Hospital, Medicine, 1960-1961
Residencies: 
Bellevue Hospital, Medicine, 1961-1965,
Primary College, Department: