Protection from Interleukin 1 Induced Destruction of Articular Cartilage by Transforming Growth Factor Beta: Studies in Anatomically Intact Cartilage in Vitro and in Vivo
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The modulation of interleukin 1 (IL-1) effects on proteoglycan metabolism in intact murine patellar cartilage by transforming growth factor beta (TGF-beta) was investigated in vitro and in vivo. In vitro TGF-beta (400 pmol/l) had no effect on basal proteoglycan degradation. Proteoglycan degradation induced by IL-1, however, was suppressed by TGF-beta in serum free medium alone and in medium supplemented with 0.5 micrograms/ml insulin-like growth factor 1. This suggests a specific regulatory role for TGF-beta under pathological conditions. In contrast with the suppression of breakdown, synthesis of proteoglycans was stimulated by TGF-beta for both basal and IL-1 suppressed proteoglycan synthesis in cultures without insulin-like growth factor. In the presence of insulin-like growth factor no extra effect of TGF-beta on proteoglycan synthesis was observed. With insulin-like growth factor, however, TGF-beta potentiated the ex vivo recovery of IL-1 induced suppression of proteoglycan synthesis. Analogous to the in vitro effects, TGF-beta injected intraarticularly suppressed IL-1 induced proteoglycan degradation. Furthermore, TGF-beta injected into the joint counteracted IL-1 induced suppression of proteoglycan synthesis. This indicates that in vivo also TGF-beta can ameliorate the deleterious effects of IL-1 on the cartilage matrix.
Kitahara K, Ebata T, Liyile C, Nishida Y, Ogawa Y, Tokuhiro T Cell Commun Signal. 2024; 22(1):569.
PMID: 39604981 PMC: 11603793. DOI: 10.1186/s12964-024-01953-8.
Zhu G, Zhang T, Chen M, Yao K, Huang X, Zhang B Bioact Mater. 2021; 6(11):4110-4140.
PMID: 33997497 PMC: 8091181. DOI: 10.1016/j.bioactmat.2021.03.043.
TGFβ/BMP Signaling Pathway in Cartilage Homeostasis.
Thielen N, van der Kraan P, van Caam A Cells. 2019; 8(9).
PMID: 31450621 PMC: 6769927. DOI: 10.3390/cells8090969.
Seidel S, Vendruscolo C, Moreira J, Fulber J, Ottaiano T, Oliva M Vet Sci. 2019; 6(3).
PMID: 31438534 PMC: 6789863. DOI: 10.3390/vetsci6030068.
Rey-Rico A, Venkatesan J, Schmitt G, Concheiro A, Madry H, Alvarez-Lorenzo C Int J Nanomedicine. 2017; 12:6985-6996.
PMID: 29033566 PMC: 5614797. DOI: 10.2147/IJN.S144579.