Dr. Huaiyong Chen, PhD, a Principal Investigator of Tianjin Institute of Respiratory Diseases and Director of Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe Hospital, Tianjin University, China. Dr. Chen is also actively involved in graduate training programs at Tianjin Medical University and Zhengzhou University. He is a member of the Basic Research Committee of Chinese Society for Tuberculosis, Chinese Medical Association, advisor of the Committee of Tianjin Clinical Research of Stem Cell Therapy. He obtained his Ph.D. from Institute of Biophysics, Chinese Academy of Sciences. Thereafter, he was trained as a postdoctoral fellow in the Department of Immunology and then Department of Medicine at Duke University (USA). Since 2008, Dr Chen’s research interests have focused on the regulation of lung epithelial stem/progenitor cells in respiratory infections, asthmatic inflammation, and pulmonary fibrosis using organoids, animal models, and human subjects, and stem cell therapy for respiratory diseases.