Dr. Yang, Kai-Chien 's publons link picture

Dr. Yang, Kai-Chien

Joint Appointment Associate Research Fellow
  • 2652-3597 (Lab) (Room No: N717)

Specialty:
  • Organ fibrosis and stromal biology
  • Cardiac regeneration
  • Non-coding RNA biology
  • Ion channel regulation and electrophysiology
  • Cardiac oxidative stress and arrhythmias

Education and Positions:
    • M.D. National Taiwan University
    • Ph.D. Washington University in St. Louis
    • Associate Professor, Department and Graduate Institute of Pharmacology, National Taiwan University
    • Attending physician, Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital

Highlight Detail
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N-Cadherin promotes cardiac regeneration by potentiating pro-mitotic β-Catenin signaling in cardiomyocytes

Dr. Yang, Kai-Chien
Nature Communications, Jan 21, 2025

Adult human hearts exhibit limited regenerative capacity. Post-injury cardiomyocyte (CM) loss can lead to myocardial dysfunction and failure. Although neonatal mammalian hearts can regenerate, the underlying molecular mechanisms remain elusive. Herein, comparative transcriptome analyses identify adherens junction protein N-Cadherin as a crucial regulator of CM proliferation/renewal. Its expression correlates positively with mitotic genes and shows an age-dependent reduction. N-Cadherin is upregulated in the neonatal mouse heart following injury, coinciding with increased CM mitotic activities. N-Cadherin knockdown reduces, whereas overexpression increases, the proliferation activity of neonatal mouse CMs and human induced pluripotent stem cell-derived CMs. Mechanistically, N-Cadherin binds and stabilizes pro-mitotic transcription regulator β-Catenin, driving CM self-renewal. Targeted N-Cadherin deletion in CMs impedes cardiac regeneration in neonatal mice, leading to excessive scarring. N-Cadherin overexpression, by contrast, promotes regeneration in adult mouse hearts following ischemic injury. N-Cadherin targeting presents a promising avenue for promoting cardiac regeneration and restoring function in injured adult human hearts.