To explore the relationship between multidrug resistance (Mdr) and malignancy. To observe whether P-glycoprotein (P-gp) overexpression had the same bioactivity as osteogenic stem cell turning into more mature cell or more complex phenotype when parent cell line turned to Mdr phenotype.

To explore a method of isolation, culture and chondrogenic phenotype differentiation of mesenchymal stem cell (MSCs) from the bone marrow of rats in vitro and to offer experimental reference for the resources of seeding cells in cartilage tissue engineering.

To observe the effects of cryopreserved (-70 degrees C) neural stem cells (NSCs) transplantation on the axon regeneration after the spinal cord injury (SCI) of rats.

To analyse retrospectively 3-tunnels core decompression with implantation of bone marrow stromal cells(bMSCs) and decalcified bone matrix (DBM) for treatment of femoral head necrosis in early stages, and to study its therapeutic results and indications.

After 50 years of development in science of burns care in China, we have basically solved coverage of deep wounds of burn trauma, as well as role of multiple growth factors and stem cell in wound healing, making great contribution to improving the treatment of patients with large area of deep burns. Surgeons are paying close attention to problems of wound healing, especially in the fields of scarless healing and rehabilitation. To solve these problems, we need to do further investigation on multiple growth factors as well as proliferation/differentiation of stem cells in regulation of cell growth and differentiation in wound healing. Therefore, we are facing a even more serious challenge.

The use of stem cells to replace lost tissues is one of the very important treatment measures used in the field of burn management in recent years. Clinical results show that the use of stem cells therapies has brought new hope for accelerating wound healing with improvement in quality, inducing sweat gland regeneration, and constructing tissue engineering skin, etc.

Great progress has been made in the basic research and clinical application of skin tissue engineering in China over the past 20 years. It includes culture of epithelial cells and their preliminary clinical use, research and development of various dermal substitutes such as acellular dermal matrix, spongiform collagen membrane and high molecular weight polymer membrane, and modification of physical properties of dermal substitutes for the sake of raising their bioaffinity and vascularization, based on which composite skin containing epithelial cell layers has been constructed and used successfully in the repair of full-thickness skin defects. More recently, greater efforts have been made in the study of new epithelial seeding cells such as epithelial stem cell and hair follicle stem cell. With the work going into the center, it is hopeful into constructing an artificial skin that mimics the normal human skin in terms of structure and function with better viability of the transplant, so that it can eventually be used in clinical practice as a skin source for large area deep burn patients to improve the wound healing quality.

The basic and clinical research in wound healing have made great progress in China in the past 50 years. The method of "intermingle skin transplantation" which was first advocated by surgeons of Ruijin Hospital in 1966 greatly reduced the amount of autologous donor skin, thus making the coverage of an extensive burn wound possible. This method is also known as "Chinese therapy". In 1986, doctors of Jishuitan Hospital reported successful coverage of an extensive burn wound with microautografts and allogeneic skin. The basic research of wound healing has been carried out since 1992, a series of studies showed the characteristics of biological behaviours of cells in concern, extracellular matrix and growth factor, the mechanism underlying progressive injury in deep second burn wound, the effect of "skin island" and the local immune tolerance induced by it (which are the key factors of intermingle transplantation). The induction of local immune tolerance has now become the research hot subject of skin transplantation immunology. Stem cell research in the field of wound healing has been extensively carried out. The theory of "dermal template defection" has been proposed as one of the mechanisms of scar formation. On the other hand, great progress has been achieved in the treatment of burns on the basis of clinical researches. Doctors of PLA 304 hospital found that excision of eschar on patients with extensive deep burn injury at early shock stage greatly decreased the occurrence of complications and mortality. Doctors of Ruijin Hospital reported that healing of deep second burn wound could be improved by tangential excision of burn eschar within 24 hours after burn injury. Doctors of Xiangya Hospital reported patients suffering from deep burns of the hands got satisfied functional restoration when treated with tangential excision of eschar while degraded dermal tissue could be retained with transplantation of autoskin grafts.

To evaluate the therapeutic effects of magnetically labeled mononuclear stem cells (MR-MNC) and mesenchymal stem cells (MR-MSC) transplantation in a swine acute myocardial infarction (AMI) model by MR imaging.

To investigate the therapeutic effects of recombinant human growth hormone (rhGH) and mesenchymal stem cells (MSCs) transplantation alone or in combination in adriamycin-induced cardiomyopathy (CM) rat model.

To establish a long-term culture system for mouse spermatogonial stem cells (SSCs) and to discuss the key factor that supports mouse SSC self-renewal and proliferation.

To study the effects of various methods of cryopreservation on the bioactivity of tissue engineered bone.

To explore the adhesion,proliferation and osteodifferentiation of bone mesenchymal stem cells (BMSCs)on the prepared lactic acid/glycolic acid/asparagic acid-co-polyethylene glycol(PLGA-[ASP-PEG])tri-block polymer scaffolds.

To investigate the correlation between the number and activity of circulating endothelial progenitor cells (EPCs), insulin resistance and severity of coronary lesions in patients with coronary artery disease (CAD).

To explore the feasibility of in vitro magnetic resonance imaging on Fe2O3-arginine labeled heNOS gene modified endothelial progenitor cells (EPCs).

To generate a P19-alphaMHC-EGFP reporter line and induce cardiomyocyte differentiation of this reporter line.

To investigated the effect of lovastatin on hypoxia and serum deprivation (Hypoxia/SD) induced rat MSCs apoptosis in vitro and associated signaling pathway changes.

To estimate the safety of intracoronary autologous bone marrow stem cells (BMSC) transfer in patients with acute myocardial infarction.

To investigate the ability of human bone marrow mesenchymal stem cells (hBMSCs), cocultured with semi-permeable membrane separated neonatal rat ventricular myocytes, to differentiate into cardiomyocytes.