Adipose tissue-derived extracellular matrix hydrogels as a release platform for secreted paracrine factors.

ABSTRACT: Fat grafting is an established clinical intervention to promote tissue repair. The role of the fat's extracellular matrix (ECM) in regeneration is largely neglected. We investigated in vitro the use of human adipose tissue-derived ECM hydrogels as release platform for factors secreted by adipose-derived stromal cells (ASCs). Lipoaspirates from nondiabetic and diabetic donors were decellularized. Finely powdered acellular ECM was evaluated for cell remainders and DNA content. Acellular ECM was digested, and hydrogels were formed at 37°C and their viscoelastic relaxation properties investigated. Release of ASC-released factors from hydrogels was immune assessed, and bio-activity was determined by fibroblast proliferation and migration and endothelial angiogenesis. Acellular ECM contained no

SUBMITTER: van Dongen JA 

PROVIDER: S-EPMC6593768 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature