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MMPs in the eye: emerging roles for matrix metalloproteinases in ocular physiology
Jeremy M Sivak1, M Elizabeth Fini
1Vision Research Laboratories, New England Eye Center, Tufts University School of Medicine, Center for Vision Research, Tufts University, 750 Washington Street, Box 450, 02111, Boston, MA 02111, USA.
Abstract:
Matrix metalloproteinases (MMPs) are a family of proteolytic enzymes that function to maintain and remodel tissue architecture. Their substrates represent an astounding variety of extracellular matrix components, secreted cytokines and cell surface molecules, and they have been implicated in a wide range of processes and diseases. To date MMPs have been found in virtually every tissue of the eye under conditions of health and disease. Although their functions in vivo remain poorly understood, it is clear they impact on essentially every aspect of eye physiology. This chapter reviews the expanding literature on MMPs in the eye and attempts to place it in the context of basic MMP biology. A general overview of MMP functions is presented first, and then the discussion moves to examples of possible MMP roles in two eye structures. For the cornea, we present recent work on the roles of MMPs during various aspects of wound healing. For the retina, we describe the activities of MMPs in specific disease states from which common principles may emerge.
Insights
Matrix metalloproteinases (MMPs) are enzymes crucial for eye tissue remodeling. This review explores their roles in corneal wound healing and retinal diseases, highlighting their broad impact on eye physiology.
Area of Science:
- Ophthalmology
- Molecular Biology
- Biochemistry
Background:
- Matrix metalloproteinases (MMPs) are a diverse group of enzymes vital for tissue maintenance and remodeling.
- MMPs process a wide array of substrates, including extracellular matrix components, cytokines, and cell surface molecules.
- These enzymes are implicated in numerous physiological processes and disease states.
Purpose of the Study:
- To review the current literature on MMPs within ocular tissues.
- To contextualize MMP functions in the eye within broader MMP biology.
- To explore specific roles of MMPs in corneal wound healing and retinal diseases.
Main Methods:
- Literature review of existing research on MMPs in ocular tissues.
- General overview of MMP functions.
- Case studies focusing on MMP roles in the cornea and retina.
Main Results:
- MMPs are present in virtually all eye tissues, active in both health and disease.
- MMP functions in vivo are not fully understood but significantly impact eye physiology.
- Specific examples illustrate MMP involvement in corneal wound healing and retinal disease pathogenesis.
Conclusions:
- MMPs play a critical, multifaceted role in eye structure and function.
- Understanding MMPs is key to addressing various ocular conditions.
- Further research into MMPs in ophthalmology holds therapeutic potential.