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NGF promotes mitochondrial function by activating PGC-1α in TM4 Sertoli cells.

Y W Jiang1, Y Zhao1, S X Chen1

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Nerve growth factor (NGF) enhances mitochondrial function in Sertoli cells, potentially offering new therapeutic targets for male infertility. This study reveals NGF

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PGC-1αSertoli cellsmitochondrial functionnerve growth factor (NGF)neurotrophin (NT)

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Area of Science:

  • Reproductive Biology
  • Cell Biology
  • Mitochondrial Biology

Background:

  • Nerve growth factor (NGF) is crucial for nervous system development and plays a role in male reproductive physiology.
  • Previous research has explored NGF's function in testes, but its paracrine and autocrine mechanisms in Sertoli cells remain uninvestigated.

Purpose of the Study:

  • To elucidate the mechanism of Nerve Growth Factor (NGF) action in TM4 Sertoli cells.
  • To investigate the role of NGF in regulating mitochondrial activity and biogenesis within Sertoli cells.
  • To identify downstream targets of the NGF signaling pathway in the context of male reproductive cells.

Main Methods:

  • Utilized TM4 Sertoli cells to study NGF's effects on mitochondrial activity and biogenesis.
  • Investigated peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α) as a potential downstream target of NGF signaling.
  • Employed a 3-nitropropionic acid (3-NP) cell model to assess NGF's protective effects against mitochondrial dysfunction.

Main Results:

  • Nerve growth factor (NGF) significantly stimulated mitochondrial activity and biogenesis in TM4 Sertoli cells.
  • Peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α) was identified as a likely key downstream target in the NGF signaling pathway.
  • NGF treatment effectively attenuated mitochondrial activity defects and depolarization in a 3-nitropropionic acid-induced cell model.

Conclusions:

  • Nerve growth factor (NGF) plays a vital role in maintaining Sertoli cell mitochondrial health.
  • The NGF signaling pathway, potentially involving PGC-1α, offers a novel therapeutic avenue for male infertility associated with mitochondrial dysfunction.