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Are Hsp70 protein expression and genetic polymorphism implicated in multiple sclerosis inflammation?

Chiara Boiocchi1, Cecilia Osera2, Maria Cristina Monti3

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The minor G allele of the HSP70-2 gene polymorphism is linked to increased Multiple Sclerosis (MS) risk. Lower Hsp70-2 protein levels were observed in MS patients with the GG genotype.

Keywords:
HSP70-2 (+1267 A/G) polymorphismMultiple SclerosisNeuroinflammation

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Area of Science:

  • Neuroimmunology
  • Genetics of Neurological Disorders
  • Molecular Biology

Background:

  • Multiple Sclerosis (MS) is a prevalent neurological disease influenced by genetic and environmental factors.
  • HSP70-2, an inducible chaperone, is activated under cellular stress conditions.
  • Understanding genetic susceptibility factors for MS is crucial for early diagnosis and treatment.

Purpose of the Study:

  • To investigate the association between HSP70-2 (+1267 A/G) gene polymorphism and Multiple Sclerosis (MS) susceptibility.
  • To evaluate the impact of HSP70-2 genotype on Hsp70-2 protein expression in MS patients.

Main Methods:

  • Genotyping of the HSP70-2 (+1267 A/G) polymorphism in individuals with and without MS.
  • Analysis of Hsp70-2 protein levels in peripheral blood mononuclear cells (PBMCs) in vitro.
  • Statistical analysis to determine the association between the polymorphism, MS, and protein levels.

Main Results:

  • A significant association was found between the minor G allele of HSP70-2 (+1267 A/G) and MS susceptibility (OR: 1.31, P = 0.039).
  • MS patients with the GG genotype exhibited significantly lower in vitro Hsp70-2 protein content compared to those with the AA genotype.

Conclusions:

  • The G allele of the HSP70-2 gene polymorphism is implicated in the development of Multiple Sclerosis.
  • Reduced Hsp70-2 protein expression associated with the GG genotype may contribute to MS pathogenesis.