Autoimmune Diseases · Pathology

Systemic Sclerosis (Scleroderma) is characterized by excessive fibrosis. Which cytokine is considered a major mediator of this fibrotic response?

  1. IL-1
  2. TGF-β
  3. TNF-α
  4. IFN-γ
Show answer and explanation

Correct answer: TGF-β

TGF-beta is a potent profibrotic cytokine that stimulates the synthesis of collagen and other extracellular matrix proteins by fibroblasts. Its overproduction is central to the skin and visceral thickening seen in scleroderma.

Difficulty: Medium Question 7 of 20

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