Sphingosine-1-phosphate pretreatment amends hypoxia-induced metabolic dysfunction and impairment of myogenic potential in differentiating C2C12 myoblasts by stimulating viability, calcium homeostasis and energy generation

Babita Rahar, Sonam Chawla, Sanjay Pandey, Anant Narayan Bhatt, Shweta Saxena

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Sphingosine-1-phosphate (S1P) has a role in transpiration in patho-physiological signaling in skeletal muscles. The present study evaluated the pre-conditioning efficacy of S1P in facilitating differentiation of C2C12 myoblasts under a normoxic/hypoxic cell culture environment. Under normoxia, exogenous S1P significantly promoted C2C12 differentiation as evident from morphometric descriptors and differentiation markers of the mature myotubes, but it could facilitate only partial recovery from hypoxia-induced compromised differentiation. Pretreatment of S1P optimized the myokine secretion, intracellular calcium release and energy generation by boosting the aerobic/anaerobic metabolism and mitochondrial mass. In the hypoxia-exposed cells, there was derangement of the S1PR1–3 expression patterns, while the same could be largely restored with S1P pretreatment. This is being proposed as a plausible underlying mechanism for the observed pro-myogenic efficacy of exogenous S1P preconditioning. The present findings are an invaluable addition to the existing knowledge on the pro-myogenic potential of S1P and may prove beneficial in the field of hypoxia-related myo-pathologies.

Original languageEnglish (US)
Pages (from-to)137-151
Number of pages15
JournalJournal of Physiological Sciences
Volume68
Issue number2
DOIs
StatePublished - Mar 1 2018
Externally publishedYes

Keywords

  • Differentiation
  • Hypoxia
  • Myogenesis
  • Normoxia
  • S1P

ASJC Scopus subject areas

  • Physiology

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