Why does hepatic stellate cell activation exacerbate liver fibrosis following chronic alcohol exposure?

💡 Explanation

Hepatic stellate cells, when activated, increase extracellular matrix production, including collagen. Transforming Growth Factor-beta (TGF-β) is a key cytokine that stimulates collagen synthesis by these cells, promoting liver fibrosis. Therefore, increased TGF-β signaling exacerbates fibrogenesis, rather than reducing inflammation or improving metabolic functions because fibrosis directly impacts liver structure.

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