Yang Lab

The research laboratory of Lei Yang, PhD, focuses on human-specific heart development, disease and regeneration.  The main approaches utilized in the Yang Lab are human embryonic stem (ES) cells, human induced pluripotent stem (iPS) cells, tissue engineering and mouse genetic models.

The heart is a complicated organ with three-dimensional organization of cellular components and an extracellular matrix (ECM) essential for pumping blood. A human heart is composed of various kinds of cells, including the major cell types of cardiomyocytes (CMs), smooth muscle cells (SMCs), endothelial cells (ECs) and cardiac fibroblasts (CFs). Throughout the past few decades, studies of heart development have been mainly focused on conserved gene regulatory mechanisms, which control various aspects of cardiogenesis across multiple species from drosophila to mice.

Despite the high evolutionary conservation of cardiogenesis, the human heart exhibits unique properties, including distinctive morphogenesis and electrophysiological properties. These species-specific differences suggest the existence of novel genetic or epigenetic programs in each species. However, the mechanisms that regulate unique aspects of human cardiogenesis are largely unknown. Damage or death of heart cells due to environmental factors, genetic defects and/or other diseases could lead to human heart disease.

In the United States, heart disease is the leading cause of death. Myocardial infarction (MI) affects more than 80 million American people and approximately 5 million are living with heart failure. A limited supply of donor hearts for transplant leads to about 50,000 deaths each year. Thus heart disease therapy requires a deep understanding of disease mechanisms for finding novel therapeutic targets as well as development of personalized therapeutic strategies, such as disease-specific drugs and patient-specific heart tissues or whole organ transplantation.

Active Research

Dissecting early heart development using human pluripotent stem cells

The Yang Lab is interested in uncovering novel regulators, such as non-coding RNAs, during early human heart development. This study utilizes human ES & iPS cells to recapitulate early events in human heart development and establish a valuable model system to understand early formation of human cardiovascular progenitors and commitment of human cardiovascular lineage cells. Mouse genetic models will be used to validate findings from human ES cell studies.

Studying inherited heart diseases using patient-specific iPS cells

The research group within the Yang Lab generates cardiomyocytes from iPS cells derived from patients with various inherited cardiovascular diseases. The group uses this unique system to elucidate the cellular and molecular mechanisms of human heart diseases and to establish an in vitro assay for screening therapeutic compounds.

Engineering patient-specific heart tissues and constructs using human iPS cells

The Yang Lab uses human iPS cell-derived multipotential cardiovascular progenitor cells (MCPs) to engineer 3D human heart tissues for studying early heart development and curing human heart disease. Its long-term goal is to rebuild a whole patient-specific bio-artificial human heart for transplantation.

Research Funding

Role: PI

Title: Toward regeneration of whole bioartificial human heart

Role: PI

Title: miRNA126 regulates human heart development

Role:  Mentor

PI: Juli Liu

Title: LncRNA HBL1 regulates human cardiomyocyte development

Recent Publications

Visit PubMed to find a full list of Dr. Yang’s publications.

Liu JL, Li Y, Lin B, Sheng Y, Yang L. HBL1 Is a Human Long Noncoding RNA that Modulates Cardiomyocyte Development from Pluripotent Stem Cells by Counteracting MIR1. 2017. Developmental Cell.  2017. 42: 333-348. Online on August 21th.

Li Y, Lin B, Yang L. Comparative Transcriptomic Analysis of Multiple Cardiovascular Fates from Embryonic Stem Cells Predicts Novel Regulators in Human Cardiogenesis. Scientific Reports. 2015. 5:09758.

Lin B, Li Y, Han L, Kaplan AD, AO Y, Kalra S, Bett G, Rasmusson RL, Denning C, Yang L. Modeling and study of the mechanism of dilated cardiomyopathy using induced pluripotent stem cells derived from individuals with Duchenne muscular dystrophy. Disease Models & Mechanisms. 2015. 8:457-466.

Lu TY, Lin B, Kim J, Sullivan M, Tobita K, Salama G, Yang L. Repopulation of Decellularized Mouse Heart with Human Induced Pluripotent Stem Cell Derived Cardiovascular Progenitor Cells. Nature Communications. August, 2013. 4, Article number: 2307.

Yang L, Soonpaa M, Edler E, Roepke T, Kattman S, Kennedy M, Henckaerts E, Bonham K, Abbott G, Lindon M, Field L and Keller G. Human cardiovascular progenitors develop from a KDR+ ES cell-derived population. Nature. 2008, 453: 524-528.

Research Team

Lei Yang

Lei Yang

Associate Professor of Pediatrics
Juli Liu

Juli Liu

Postdoctoral Fellow in Pediatrics
Lei Han

Lei Han

Postdoctoral Fellow in Pediatrics
Liwen Li

Liwen Li

Postdoctoral Fellow in Pediatrics