Biomedicines (Nov 2021)

Oxidized LDL Increase the Proinflammatory Profile of Human Visceral Adipocytes Produced by Hypoxia

  • Concepción Santiago-Fernández,
  • Flores Martín-Reyes,
  • Monica Tome,
  • Carolina Gutierrez-Repiso,
  • Diego Fernandez-Garcia,
  • Luis Ocaña-Wilhelmi,
  • Jose Rivas-Becerra,
  • Franz Tatzber,
  • Edith Pursch,
  • Francisco J. Tinahones,
  • Eduardo García-Fuentes,
  • Lourdes Garrido-Sánchez

DOI
https://doi.org/10.3390/biomedicines9111715
Journal volume & issue
Vol. 9, no. 11
p. 1715

Abstract

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Background: Little is known about the effects of hypoxia on scavenger receptors (SRs) levels in adipocytes. We analyzed the effect of morbid obesity and hypoxia on SRs and inflammation markers in human visceral adipocytes and whether ox-LDL modify the inflammatory profile produced by hypoxia. Methods: We studied in 17 non-obese and 20 subjects with morbid obesity (MO) the mRNA expression of HIF-1α, SRs (LOX-1, MSR1, CL-P1 and CXCL16), IL6 and TNFα in visceral adipocytes and the effect of hypoxia with or without ox-LDL on visceral in vitro-differentiated adipocytes (VDA). Results: HIF-1α, TNFα, IL6, LOX-1, MSR1 and CXCL16 expression in adipocytes was increased in MO when compared with those in non-obese subjects (p p p p p = 0.041). Conclusions: Morbid obesity and hypoxia increased SRs and inflammatory markers in visceral adipocytes. In a hypoxic state, ox-LDL increased the proinflammatory response of visceral adipocytes to hypoxia.

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