ArticleCell calcium2021
Insulin-like growth factor-1 regulates the mechanosensitivity of chondrocytes by modulating TRPV4.
Article in Cell calcium, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
12 citing papers in PubMed, 24 citations in OpenAlex.
- Recent advances and emerging mechanisms in graphene-based materials for cartilage tissue engineering.npj biomedical innovations · 2026Review
- A biomimetic cryoprotectant preserves extracellular vesicles bioactivity for intravenous administration and potentiates wound healing.Journal of nanobiotechnology · 2026Article
- Aging changes the mechanism that underlies JAK2 modulation of neutrophil function.Journal of immunology (Baltimore, Md. : 1950) · 2026Article
- Targeting mechanotransduction components as therapeutic strategies in osteoarthritis.Molecular biology reports · 2026Review
- Comparative analysis of scaffold-free tissue-engineered cartilage derived from different seed cells: in vitro and in vivo studies.Stem cells translational medicine · 2025Article
- Inflammatory and Metabolic Signaling Interfaces of the Hypertrophic and Senescent Chondrocyte Phenotypes Associated with Osteoarthritis.International journal of molecular sciences · 2023Review
- [Research progress of chondrocyte mechanotransduction mediated by TRPV4 and PIEZOs].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2023Review
- The Dual-Responsive Interaction of Particulated Hyaline Cartilage and Plasma Rich in Growth Factors (PRGF) in the Repair of Cartilage Defects: An In Vitro Study.International journal of molecular sciences · 2023Article
- Harnessing Growth Factor Interactions to Optimize Articular Cartilage Repair.Advances in experimental medicine and biology · 2023Review
- Targeted Activation of G-Protein Coupled Receptor-Mediated CaTissue engineering. Part A · 2022Article
- TRPV4 and PIEZO Channels Mediate the Mechanosensing of Chondrocytes to the Biomechanical Microenvironment.Membranes · 2022Review
- The Role of Mechanically-Activated Ion Channels Piezo1, Piezo2, and TRPV4 in Chondrocyte Mechanotransduction and Mechano-Therapeutics for Osteoarthritis.Frontiers in cell and developmental biology · 2022Review
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
Both mechanical and biochemical stimulation are required for maintaining the integrity of articular cartilage. However, chondrocytes respond differently to mechanical stimuli in osteoarthritic cartilage when biochemical signaling pathways, such as Insulin-like Growth Factor-1 (IGF-1), are altered. The Transient Receptor Potential Vanilloid 4 (TRPV4) channel is central to chondrocyte mechanotransduction and regulation of cartilage homeostasis. Here, we propose that changes in IGF-1 can modulate TRPV4 channel activity. We demonstrate that physiologic levels of IGF-1 suppress hypotonic-induced TRPV4 currents and intracellular calcium flux by increasing apparent cell stiffness that correlates with actin stress fiber formation. Disruption of F-actin following IGF-1 treatment results in the return of the intracellular calcium response to hypotonic swelling. Using point mutations of the TRPV4 channel at the microtubule-associated protein 7 (MAP-7) site shows that regulation of TRPV4 by actin is mediated via the interaction of actin with the MAP-7 domain of TRPV4. We further highlight that ATP release, a down-stream response to mechanical stimulation in chondrocytes, is mediated by TRPV4 during hypotonic challenge. This response is significantly abrogated with IGF-1 treatment. As chondrocyte mechanosensitivity is greatly altered during osteoarthritis progression, IGF-1 presents as a promising candidate for prevention and treatment of articular cartilage damage.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.