Abstract. Background/Aim: The effects of adipose tissue derived mesenchymal stem cells (AT-MSCs) on the growth of human malignancies, including melanoma, are controversial and the underlying mechanisms are not yet-well understood. The aim of the present study was to investigate the in vitro and in vivo anti-tumor effects of human AT-MSCs on human melanoma.
Materials and Methods: The inhibitory effect of AT-MSC-conditioned medium (AT-MSC-CM) on the growth of A375SM and A375P (human melanoma) cells was evaluated using a cell viability assay. Cell-cycle arrest and apoptosis in melanoma cells were investigated by flow cytometry and western blot analysis. To evaluate the in vivo anti-tumor effect of AT-MSCs, CM-DiI-labeled AT-MSCs were circumtumorally injected I n tumor-bearing athymic mice and tumor size was measured.
Results: AT-MSC-CM inhibited melanoma growth by altering cell-cycle distribution and inducing apoptosis in vitro. AT-MSCs suppressed tumor growth in tumor-bearing athymic mice and fluorescence analysis showed that AT-MSCs migrated efficiently to tumor tissues.
Conclusion: AT-MSCs inhibit the growth of melanoma suggesting promise as a novel therapeutic agent for melanoma.
Date : 2015. Jan
Author : Ahn JO, Coh YR, Lee HW, Shin IS, Kang SK, Youn HY
Sources : Anticancer Res.Leave a reply