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Screening Bioactive Nanoparticles in Phagocytic Immune Cells for Inhibitors of Toll-like Receptor Signaling
Published on: July 26, 2017
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Toll-like receptors in mediating pathogenesis in systemic sclerosis
1National Centre for Drug Research and Evaluation, Pharmacological Research and Experimental Therapy Unit, Istituto Superiore di Sanità, Rome, Italy.
Clinical and Experimental Immunology
|February 13, 2020
Summary
Toll-like receptors (TLRs) are crucial for host defense and play a role in systemic sclerosis (SSc) pathogenesis. Understanding TLR signaling and danger-associated molecular patterns (DAMPs) in SSc can lead to new therapeutic strategies.
Area of Science:
- Immunology
- Rheumatology
- Cell Biology
Background:
- Toll-like receptors (TLRs) are key innate immune sensors involved in host defense.
- Systemic sclerosis (SSc) is a fibrotic disease characterized by autoimmunity and collagen deposition.
- Emerging evidence implicates TLRs and their ligands in SSc pathogenesis.
Purpose of the Study:
- To review the involvement of TLR signaling pathways in systemic sclerosis.
- To highlight novel danger-associated molecular patterns (DAMPs) implicated in SSc.
- To discuss the role of TLRs in disease progression and potential as therapeutic targets.
Main Methods:
- Literature review of studies investigating TLRs in SSc.
- Analysis of endogenous ligands (DAMPs) activating TLRs in SSc.
- Examination of TLR-linked pathways, including type I interferon signature, pDCs, and platelets.
Main Results:
- TLRs are expressed on various immune and non-immune cells in SSc.
- Specific DAMPs activate TLRs, contributing to inflammation and fibrosis in SSc.
- TLR signaling pathways, particularly type I interferon, pDCs, and platelets, are implicated in SSc pathogenesis.
Conclusions:
- TLR signaling is integral to the pathogenesis of systemic sclerosis.
- Identifying DAMPs and TLR pathways offers insights into disease mechanisms.
- TLR pathways and their correlation with disease status may serve as prognostic tools for SSc treatment.
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