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Laboratory of
Taejeong Song 

Our mission is to elucidate the molecular and cellular mechanisms that regulate muscle development, structure, and contractile function in health and disease, with the goal of advancing therapies for congenital and acquired cardiac and skeletal muscle disorders.

Our research program is dedicated to understanding how sarcomeric proteins regulate skeletal and cardiac muscle development, structure, function, and aging in health and disease. We focus on the Myosin Binding Protein-C (MyBP-C) family, including slow skeletal (sMyBP-C; MYBPC1), fast skeletal (fMyBP-C; MYBPC2), and cardiac (cMyBP-C; MYBPC3), to define their roles in sarcomere assembly, thick filament regulation, contractile function, and muscle regeneration. Using genetically engineered mouse models, human iPSC-derived muscle systems, in-depth muscle mechanics, SRX/DRX analysis, X-ray diffraction, advanced imaging, and multi-omics approaches, we investigate the molecular mechanisms underlying inherited muscle diseases, including MYBPC1-associated distal arthrogryposis, congenital myopathies, and MYBPC3-associated hypertrophic cardiomyopathy (HCM). Our long-term goal is to translate these mechanistic discoveries into novel therapies by developing and evaluating small molecules, adeno-associated virus (AAV)-based gene therapies, and antisense oligonucleotides (ASOs) to improve outcomes for patients with genetic cardiac and skeletal muscle diseases.

Lab Members

For further information, contact  Taejeong Song, PhD at 520-621-1255 or

EMAIL US