A comparison of serum inflammatory parameters in progressive forms of multiple sclerosis

Maria Nowak-Kiczmer1, Natalia Niedziela1, Zenon P Czuba2

  • 1Department of Neurology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia in Katowice, Zabrze, Poland.

Abstract

Insights

Inflammatory markers differ across multiple sclerosis (MS) subtypes, including primary progressive MS (PPMS). These serum inflammatory parameters may help distinguish MS courses and assess treatment responses.

Area of Science:

  • Neuroimmunology
  • Biomarker Discovery

Background:

  • Multiple sclerosis (MS) is a chronic central nervous system inflammatory demyelinating disease.
  • Primary progressive MS (PPMS) accounts for 10-15% of MS cases, with limited treatment efficacy.
  • Inflammatory processes may vary between different MS subtypes.

Purpose of the Study:

  • To investigate differences in serum inflammatory parameters between PPMS and other MS disease courses.
  • To evaluate inflammatory markers in PPMS patients receiving ocrelizumab versus those treatment-naive.

Main Methods:

  • Study included 84 subjects categorized into PPMS (n=24), secondary progressive MS (SPMS, n=14), and relapsing-remitting MS (RRMS, n=46).
  • PPMS patients were further stratified into ocrelizumab-treated and treatment-naive groups.
  • Serum concentrations of various inflammatory parameters were measured and compared.

Main Results:

  • Significant differences in sCD30, gp130, sIL-6R alpha, osteopontin, pentraxin-3, and sTNF-R1 were observed between PPMS and SPMS.
  • PPMS differed from RRMS in serum levels of IFN-alpha2, IL-10, IL-20, IL-29, and osteopontin.
  • Differences in BAFF, IL-19, IL-20, pentraxin-3, s-TNF-R1, and s-TNF-R2 were noted between treated and untreated PPMS groups.

Conclusions:

  • Inflammatory processes vary among different MS courses, despite their role in overall MS pathogenesis.
  • Serum inflammatory parameters show potential as biomarkers for differentiating MS subtypes.
  • These biomarkers may also aid in assessing treatment responses to disease-modifying therapies.