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- Title
Role of RGC-32 in multiple sclerosis and neuroinflammation - few answers and many questions.
- Authors
Tatomir, Alexandru; Cuevas, Jacob; Badea, Tudor C.; Muresanu, Dafin F.; Rus, Violeta; Rus, Horea
- Abstract
Recent advances in understanding the pathogenesis of multiple sclerosis (MS) have brought into the spotlight the major role played by reactive astrocytes in this condition. Response Gene to Complement (RGC)-32 is a gene induced by complement activation, growth factors, and cytokines, notably transforming growth factor β, that is involved in the modulation of processes such as angiogenesis, fibrosis, cell migration, and cell differentiation. Studies have uncovered the crucial role that RGC-32 plays in promoting the differentiation of Th17 cells, a subtype of CD4+ T lymphocytes with an important role in MS and its murine model, experimental autoimmune encephalomyelitis. The latest data have also shown that RGC-32 is involved in regulating major transcriptomic changes in astrocytes and in favoring the synthesis and secretion of extracellular matrix components, growth factors, axonal growth molecules, and pro-astrogliogenic molecules. These results suggest that RGC-32 plays a major role in driving reactive astrocytosis and the generation of astrocytes from radial glia precursors. In this review, we summarize recent advances in understanding how RGC-32 regulates the behavior of Th17 cells and astrocytes in neuroinflammation, providing insight into its role as a potential new biomarker and therapeutic target.
- Subjects
MULTIPLE sclerosis; TRANSFORMING growth factors; T helper cells; NEUROINFLAMMATION; CHONDROITIN sulfate proteoglycan; T cells; MYELIN oligodendrocyte glycoprotein
- Publication
Frontiers in Immunology, 2022, Vol 12, p1
- ISSN
1664-3224
- Publication type
Article
- DOI
10.3389/fimmu.2022.979414