» Articles » PMID: 18470577

Coordinate Regulation of IL-1beta and MMP-13 in Rat Tendons Following Subrupture Fatigue Damage

Overview
Publisher Wolters Kluwer
Specialty Orthopedics
Date 2008 May 13
PMID 18470577
Citations 56
Authors
Affiliations
Soon will be listed here.
Abstract

Mechanical overloading is a major causative factor of tendinopathy; however, its underlying mechanisms are unclear. We hypothesized mechanical overloading would damage tendons and alter genes associated with tendinopathy in a load-dependent manner. To test this hypothesis, we fatigue loaded rat patellar tendons in vivo and measured expression of the matrix-degrading enzyme MMP-13 and the inflammatory cytokine IL-1beta. We also examined these responses in cultured tenocytes exposed to intermittent hydrostatic pressure in vitro. Additionally, we hypothesized load-induced changes in tenocyte MMP-13 expression would be dependent on expression of IL-1beta. In vivo fatigue loading at 1.7% strain caused overt microstructural damage and upregulated expression of MMP-13 and IL-1beta, while 0.6% strain produced only minor changes in matrix microstructure and downregulated expression of both MMP-13 and IL-1beta. Loading of cultured tenocytes at 2.5 and 7.5 MPa produced comparable changes in expression to those of in vivo tendon loading. Blocking IL-1beta expression with siRNA suppressed load-induced both MMP-13 mRNA expression and activity. The data suggest fatigue loading alters expression of MMP-13 and IL-1beta in tendons in vivo and tenocytes in vitro in a load-dependent manner. The data also suggest MMP-13 is regulated by both IL-1beta-dependent and IL-1beta-independent pathways.

Citing Articles

Collagen denaturation in post-run Achilles tendons and Achilles tendinopathy: In vivo mechanophysiology and magnetic resonance imaging.

Fang Y, Zhu D, Wei J, Qian L, Qiu R, Jia T Sci Adv. 2024; 10(40):eado2015.

PMID: 39356750 PMC: 11446262. DOI: 10.1126/sciadv.ado2015.


Upregulation of FABP4 induced inflammation in the pathogenesis of chronic tendinopathy.

Ma Z, Lee A, Kot C, Yung P, Chen S, Lui P J Orthop Translat. 2024; 47:105-115.

PMID: 39007036 PMC: 11245957. DOI: 10.1016/j.jot.2024.06.007.


Establishment of a Mouse Degenerative Model of Patellar Tendinopathy with Upregulation of Inflammation.

Lui P, Liang Z, Tan R, Yung P Int J Mol Sci. 2024; 25(7).

PMID: 38612656 PMC: 11011606. DOI: 10.3390/ijms25073847.


Rat Plantar Fascia Stem/Progenitor Cells Showed Lower Expression of Ligament Markers and Higher Pro-Inflammatory Cytokines after Intensive Mechanical Loading or Interleukin-1β Treatment In Vitro.

Siu W, Ma H, Ko C, Shiu H, Cheng W, Lee Y Cells. 2023; 12(18).

PMID: 37759446 PMC: 10526819. DOI: 10.3390/cells12182222.


Animal model for tendinopathy.

Luo J, Wang Z, Tang C, Yin Z, Huang J, Ruan D J Orthop Translat. 2023; 42:43-56.

PMID: 37637777 PMC: 10450357. DOI: 10.1016/j.jot.2023.06.005.


References
1.
Archambault J, Tsuzaki M, Herzog W, Banes A . Stretch and interleukin-1beta induce matrix metalloproteinases in rabbit tendon cells in vitro. J Orthop Res. 2002; 20(1):36-9. DOI: 10.1016/S0736-0266(01)00075-4. View

2.
Devkota A, Tsuzaki M, Almekinders L, Banes A, Weinhold P . Distributing a fixed amount of cyclic loading to tendon explants over longer periods induces greater cellular and mechanical responses. J Orthop Res. 2007; 25(8):1078-86. DOI: 10.1002/jor.20389. View

3.
Wang J, Iosifidis M, Fu F . Biomechanical basis for tendinopathy. Clin Orthop Relat Res. 2006; 443:320-32. DOI: 10.1097/01.blo.0000195927.81845.46. View

4.
Maffulli N, Wong J, Almekinders L . Types and epidemiology of tendinopathy. Clin Sports Med. 2003; 22(4):675-92. DOI: 10.1016/s0278-5919(03)00004-8. View

5.
Li Z, Yang G, Khan M, Stone D, Woo S, Wang J . Inflammatory response of human tendon fibroblasts to cyclic mechanical stretching. Am J Sports Med. 2004; 32(2):435-40. DOI: 10.1177/0095399703258680. View