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Adipocytolytic Polymer Nanoparticles for Localized Fat Reduction.

Young Kyoung HanEun Ju JeongYerang SeoIn Young LeeSuim ChoiHyewon LeeChoonggu KimTaiyoun RhimKuen-Yong Lee
Published in: ACS nano (2022)
The demand for body fat reduction is increasing. However, conventional lipolytic approaches fail to control adipose tissue reduction and cause severe side effects in adjacent nonadipose tissues. A strategy to specifically reduce subcutaneous fat using adipocytolytic polymer nanoparticles in a minimally invasive manner is reported here. The polymer nanoparticles are designed to generate carbon dioxide gas when selectively absorbed by adipocytes. The carbon dioxide gas generated within late endosomes/lysosomes induces adipocytolysis, thereby reducing the number of cells. Localized injection of the adipocytolytic nanoparticles substantially reduces subcutaneous fat in a high-fat diet-induced obese mouse model, without significant changes in hematological or serum biochemical parameters. The adipocytolytic efficacy of the nanoparticles is also evaluated in a porcine model. This strategy addresses the need to develop safe and effective adipocytolytic agents using functional polymer nanoparticles.
Keyphrases
  • adipose tissue
  • carbon dioxide
  • insulin resistance
  • minimally invasive
  • mouse model
  • high fat diet induced
  • high fat diet
  • gene expression
  • type diabetes
  • walled carbon nanotubes
  • fatty acid
  • signaling pathway