Animal model

Two kinds of animal model appear in MMP13 research.

Induced damage models create cartilage damage on purpose. Researchers inject monosodium iodoacetate into a rat's knee (Abo-Zalam 2025; Shin 2022; Jhun 2025), cut a knee ligament (Roy 2025), or make the knee unstable by surgery (Glasson 2005; Little 2009), and then test whether a compound or a missing gene changes the damage.

Genetic models change a gene. Mice lacking MMP13 had less cartilage erosion after injury (Little 2009), mice lacking a working ADAMTS5 had less cartilage destruction (Glasson 2005), and mice made to produce always-active MMP13 developed cartilage erosion (Neuhold 2001).

Animal models are useful for mechanism and for testing whole-body effects. Doses by body weight, joint mechanics and biology differ from ours, so results don't always carry over to people.

Sources

1. Abo-Zalam HB, Gendy AM, Ali BM et al. Acetyl-11-keto-beta-boswellic acid ameliorates monosodium iodoacetate-induced osteoarthritis in rats: implications of HMGB1/TLR4/NF-κB and Nrf2/HO-1. Front Pharmacol 2025.
   PMID 41403440DOI 10.3389/fphar.2025.1694803Our summary
2. Shin MR, Kim HY, Choi HY et al. Boswellia serrata Extract, 5-Loxin®, Prevents Joint Pain and Cartilage Degeneration in a Rat Model of Osteoarthritis through Inhibition of Inflammatory Responses and Restoration of Matrix Homeostasis. Evid Based Complement Alternat Med 2022.
   PMID 36310623DOI 10.1155/2022/3067526Our summary
3. Jhun J, Lee D, Na HS et al. Curcumin and omega-3 ameliorate experimental osteoarthritis progression in terms of joint pain and mitochondrial dysfunction. J Inflamm (Lond) 2025.
   PMID 40665304DOI 10.1186/s12950-025-00453-xOur summary
4. Roy HS, Kulkarni C, Neethu KM et al. Curcumin monoglucuronide protects cartilage from progressive degeneration by blocking MMP-13. Arch Pharm Res 2025.
   PMID 40731199DOI 10.1007/s12272-025-01558-wOur summary
5. Glasson SS, Askew R, Sheppard B et al. Deletion of active ADAMTS5 prevents cartilage degradation in a murine model of osteoarthritis. Nature 2005.
   PMID 15800624DOI 10.1038/nature03369Our summary
6. Little CB, Barai A, Burkhardt D et al. Matrix metalloproteinase 13-deficient mice are resistant to osteoarthritic cartilage erosion but not chondrocyte hypertrophy or osteophyte development. Arthritis Rheum 2009.
   PMID 19950295DOI 10.1002/art.25002Our summary
7. Neuhold LA, Killar L, Zhao W et al. Postnatal expression in hyaline cartilage of constitutively active human collagenase-3 (MMP-13) induces osteoarthritis in mice. J Clin Invest 2001.
   PMID 11134178DOI 10.1172/JCI10564Our summary

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