Emerging cellular and molecular targets in fibrosis: implications for scleroderma pathogenesis and targeted therapy.

Author: Castelino FV, Varga J.
Date Published: September-2014
Source: Current Opinion in Rheumatology

PURPOSE OF REVIEW: To summarize the recent advances in understanding the novel cytokine pathways, intracellular signaling molecules, cell-fate decisions, cellular aging and senescence, and the cross-talk of effector cells and the extracellular matrix (ECM) in the pathogenesis of systemic sclerosis (SSc) fibrosis. RECENT FINDINGS: Studies from the animal models and human beings implicate novel molecular pathways such as Wnts, the chemokines, chemokine (C-X-C motif) ligand 4 and chemokine (C-C motif) ligand 2, and the lipid mediators lysophosphatidic acid and sphingosine-1-phosphate in the pathogenesis of SSc. These signals, coupled with the mesenchymal cell-fate decisions, contribute to aberrant fibroblast activation and myofibroblast accumulation.