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Beige tissue egineering

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2 papers 0 to 25 followers
Katrin J Svensson, Jonathan Z Long, Mark P Jedrychowski, Paul Cohen, James C Lo, Sara Serag, Serkan Kir, Kosaku Shinoda, Julia A Tartaglia, Rajesh R Rao, Alain Ch├ędotal, Shingo Kajimura, Steven P Gygi, Bruce M Spiegelman
Activation of brown and beige fat can reduce obesity and improve glucose homeostasis through nonshivering thermogenesis. Whether brown or beige fat also secretes paracrine or endocrine factors to promote and amplify adaptive thermogenesis is not fully explored. Here we identify Slit2, a 180 kDa member of the Slit extracellular protein family, as a PRDM16-regulated secreted factor from beige fat cells. In isolated cells and in mice, full-length Slit2 is cleaved to generate several smaller fragments, and we identify an active thermogenic moiety as the C-terminal fragment...
March 8, 2016: Cell Metabolism
M K Vaicik, M Morse, A Blagajcevic, J Rios, J Larson, F Yang, R N Cohen, G Papavasiliou, E M Brey
Brown and beige adipose tissues have a significant capacity for energy expenditure that may be exploited as a treatment for obesity and metabolic disease. However, the limited volumes of these tissues in adults hinders realization of this potential. Engineering beige adipose tissue may provide an alternative source of this tissue. In this paper we describe the preparation of poly(ethylene glycol) (PEGDA) hydrogels with mechanical properties similar to native adipose tissue. Adipose derived stem cells (ASC) were cultured in hydrogels without adhesive sequences or degradable monomers...
October 28, 2015: Journal of Materials Chemistry. B, Materials for Biology and Medicine
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