MMP1 is a human gene whose product mMP1 (Matrix Metallopeptidase 1), also known as interstitial collagenase, is a zinc-dependent endopeptidase that degrades native collagen types I, II, and III. It plays crucial roles in extracellular matrix remodeling, tissue repair, and inflammation. Variants in MMP1 have been implicated in Alzheimer's Disease, Parkinson's Disease, Rheumatoid Arthritis. This page covers the gene's normal function, disease associations, expression patterns, and key research findings relevant to neurodegeneration. [1]
MMP1 (Matrix Metallopeptidase 1), also known as interstitial collagenase, is a zinc-dependent endopeptidase that degrades native collagen types I, II, and III. It plays crucial roles in extracellular matrix remodeling, tissue repair, and inflammation.
Extracellular Matrix Degradation: MMP1 cleaves collagen I, II, III, gelatin, and other matrix proteins. This activity is essential for tissue remodeling during development, wound healing, and injury response.
Inflammatory Signaling: MMP1 releases bioactive fragments from matrix proteins that act as chemotactic signals for immune cells. It activates pro-inflammatory cytokines and modulates immune responses.
Amyloid Processing: MMP1 can degrade Aβ peptides and may contribute to amyloid clearance in the brain. However, dysregulated MMP1 activity can also generate toxic fragments.
Growth Factor Activation: MMP1 releases and activates growth factors from the extracellular matrix, including TGF-β, influencing cell proliferation and differentiation.
MMP1 is implicated in AD through multiple mechanisms:
In PD, MMP1 participates in:
MMP1 is a key enzyme in joint destruction in rheumatoid arthritis, degrading cartilage collagen and driving inflammation.
MMP1 promotes tumor invasion and metastasis in many cancers including glioblastoma, breast cancer, and melanoma.
MMP1 is expressed in:
In the brain, MMP1 is expressed in:
Expression is induced by:
MMP1 is a therapeutic target for:
MMP1 levels may serve as biomarkers for:
Krane et al. MMP1 in cancer invasion (2018). 2018. ↩︎