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Fat pad‐derived mesenchymal stem cells as a potential source for cell‐based adipose tissue repair strategies

Background:  Mesenchymal stem cells are able to undergo adipogenic differentiation and present a possible alternative cell source for regeneration and replacement of adipose tissue. The human infrapatellar fat pad is a promising source of mesenchymal stem cells with many source advantages over from bone marrow. It is important to determine whether a potential mesenchymal stem‐cell exhibits tri‐lineage differentiation potential and is able to maintain its proliferation potential and cell‐surface characterization on expansion in tissue culture. We have previously shown that mesenchymal stem cells derived from the fat pad can undergo chondrogenic and osteogenic differentiation, and we characterized these cells at early passage. In the study described here, proliferation potential and characterization of fat pad‐derived mesenchymal stem cells were assessed at higher passages, and cells were allowed to undergo adipogenic differentiation.