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Pathogenesis of Systemic Sclerosis.

Debendra Pattanaik1, Monica Brown2, Bradley C Postlethwaite3

  • 1Department of Medicine, Division of Connective Tissue Diseases, The University of Tennessee Health Science Center , Memphis, TN , USA ; Department of Veterans Affairs Medical Center , Memphis, TN , USA.

Frontiers in Immunology
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PubMed
Summary

Systemic scleroderma (SSc) is a complex autoimmune disease affecting blood vessels, fibroblasts, and immune cells. Understanding its multifaceted nature may reveal novel therapeutic strategies for SSc patients.

Keywords:
adaptive immunityanimal modelsfibrosisinnate immunitysclerodermasystemic sclerosisvasculopathy

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Area of Science:

  • Immunology
  • Rheumatology
  • Cell Biology

Background:

  • Systemic scleroderma (SSc) is a complex autoimmune disease characterized by immune system abnormalities, vasculopathy, and fibroblast dysfunction.
  • These processes involve autoantibody production, cell-mediated autoimmunity, microvascular damage, and excessive collagen deposition.
  • SSc heterogeneity suggests influences from genetic factors, infections, or environmental toxins on immune, vascular, and connective tissue cells.

Purpose of the Study:

  • To elucidate the complex interplay of immune, vascular, and connective tissue abnormalities in systemic scleroderma.
  • To explore the potential roles of lysophospholipids, endocannabinoids, and vitamin D in SSc pathogenesis.
  • To identify potential new therapeutic targets for SSc.

Main Methods:

  • Review of existing literature on SSc pathogenesis.
  • Analysis of the interactions between immune cells, vascular endothelium, and fibroblasts in SSc.
  • Exploration of the emerging roles of specific molecular entities in SSc.

Main Results:

  • SSc pathogenesis involves a triad of immune dysregulation, microvascular disease, and fibroblast activation.
  • These pathological processes are interconnected and contribute to the disease's heterogeneity.
  • Emerging research highlights the potential involvement of lysophospholipids, endocannabinoids, and vitamin D.

Conclusions:

  • The complex, multifactorial nature of SSc requires a comprehensive understanding of its underlying mechanisms.
  • Investigating novel molecular pathways, including those involving lysophospholipids, endocannabinoids, and vitamin D, may offer new therapeutic avenues.
  • Further research into these interactions is crucial for developing effective treatments for systemic scleroderma.