Mesenchymal stem cell transplantation inhibits abnormal activation of Akt/GSK3ß signaling pathway in T cells from systemic lupus erythematosus mice.

Cellular physiology and biochemistry : international journal of experimental cellular physiology, biochemistry, and pharmacology

PubMedID: 22613971

Ji S, Guo Q, Han Y, Tan G, Luo Y, Zeng F. Mesenchymal stem cell transplantation inhibits abnormal activation of Akt/GSK3ß signaling pathway in T cells from systemic lupus erythematosus mice. Cell Physiol Biochem. 2012;29(5-6):705-12.
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by activation and proliferation of autoreactive T cells and B cells. We examined changes in cell cycle progression of T cells from MRL/lpr mice with or without allogenic bone marrow mesenchymal stem cells (BMMSCs) treatment and analyzed the expression of cell cycle associated proteins. In addition, the Akt/GSK3ß protein kinase cascade was studied. We demonstrated that high-dose MSCs transplantation effectively ameliorated disease activity in MRL/lpr mice. BMMSCs treatment inhibited G1/S transition of the abnormal lupus T lymphocytes. Moreover, it increased the expression of p21(WAF1/CIP1) and p27(Kip1) and decreased the expression of CDK2. Furthermore, high-dose MSCs inhibited abnormal activation of the Akt/GSK3ß signaling pathway of T cells from MRL/lpr mice. Our results suggest that high-dose BMMSCs transplantation successfully treated MRL/lpr lupus mice by inhibiting abnormal activation of Akt/GSK3ß signaling pathway of T cells.