We are excited to welcome surgeon-scientist Dr Guangheng Li the Keller laboratory. 'GH' received his M.D in 1996 from Henan Medical University and his Ph.D in 2002 from the Shanghai Second Medical University. As a member of the Stem Cell Research Center in the Department of Orthopedic Surgery at University of Pittsburgh, GH authored or co-authored numberous tissue engineering and stem cell studies that have been published in the Journal of Tissue Engineering, Journal of Bone and Mineral Research, Nature Biotechnology, and Arthritis and Rheumatism. His research has focused primarily on using gene therapy, skeletal muscle stem cell and protein therapy to improve bone healing and delay the process of joints disease. In the Keller laboratory, GH will extend these interests to the study of activated muscle stem cells and muscle cancer (rhabdomyosarcoma).