The RNA-Binding Proteins Promote Resistance of Microglial Cells to Hypoxia

Mohammad Khosravi1, Zohreh Ghotbeddin2, Sorour Chinipardaz3

  • 1Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.

Abstract

Insights

RNA-binding proteins (RBPs) enhance microglial cell resistance to hypoxia. Treatment improved cell viability and reduced inflammatory markers, showing promise for treating hypoxic brain disorders.

Area of Science:

  • Neuroscience
  • Cell Biology
  • Molecular Biology

Background:

  • Microglial cells are key responders to brain hypoxia.
  • RNA-binding proteins (RBPs) role in microglial response to hypoxia is under investigation.

Purpose of the Study:

  • To evaluate the effect of RBPs on microglial cell resistance to hypoxia.
  • To investigate RBP-mediated changes in cell viability and immune factors.

Main Methods:

  • Hypoxia was induced in newborn rats; microglial cells were isolated and treated with RBPs via exosomes.
  • Gene expression (CPE, HIF-1α, PDI, VEGF-A) and innate immune factors were analyzed.
  • In vivo studies assessed behavioral changes after exosome-RBP treatment in hypoxic rats.

Main Results:

  • Exosome treatment with RBPs (RBP-H) increased microglial viability and expression of key genes (CPE, HIF-1α, PDI, VEGF-A).
  • RBP-H treatment improved anti-protease activity and reduced lysozyme/myeloperoxidase activity in hypoxic cells.
  • In vivo, exosome-RBP treatment significantly improved recognition and balance in hypoxic rats.

Conclusions:

  • RBPs show potential in enhancing microglial resistance to hypoxia.
  • RBP-based therapies may offer a promising strategy for treating hypoxia-induced brain disorders.

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