Xiangfei Cheng received B.M in China in 1983 and Ph.D in Sweden in 1995. He worked as postdoctor in Northwestern University, Chicago, IL, USA.

1. Immunology of Heart Transplant:
   1. Allograft: Protection of Rejection in Cellular and molecular Level
   2. Xenograft: Analysis of Coagulation and Explore Treatment to Improve Balance of Coagulation and Fibrinolysis
2. Stem Cell Expansion, Differentiation and Engraftment; Gene Therapy of Cancer.
3. Regulation of Surface Proteinase and Signal Transduction of Serpin-Proteinase Complex by LRP (a member of LDL Receptor Family).
4. Tissue Plasminogen Actovator (tPA) and it's Receptors:
   1. Study on tPA interaction with receptor on the endothelial cells membrane and purify the tPA receptor from endothelial cells membrane.
   2. Study on relationship between structure and function of tPA
5. Constitute of cDNA Library with Phage lamda gt11 and Expression of Sperm Membrane Protein from Recombinant DNA