Isolation and culture of bone marrow mesenchymal stem cells and the study of their biological char-acteristics in patients with rheumatoid arthritis / 中华风湿病学杂志

ABSTRACT

Objective To isolate and culture bone marrow mesenchymal stem cells (BMSCs) from patients with rheumatoid arthritis (RA) and examine their biological characteristics. Methods MSCs were isolated from bone marrow of RA patients and purified by density gradient centrifugation and cultured in vitro. The morphology, immunophenotype, and proliferative; property of BMSC and colony forming unit-fibroblast (CFU-F) were measured and analyzed. Results The culture expanded cells from RA patients presented a typical fibroblast-like morphology. Ceils were positive for SH2 (CD105), CD71, and CD44, but negative for CD45. Their proliferative capacity and CFU-F number were similar to those of BMSCs from healthy donors. Conclusion In respect to morphology, immuno-phenotype, proliferative property and colony forming unit-fibroblast (CFU-F), MSCs from bone marrow of RA patients are not different from those of MSCs isolated from bone marrow of normal donors. MSCs from the bone marrow of RA patients have the potential for clinical application.