Related Experiment Videos
Osteopontin function in pathology: lessons from osteopontin-deficient mice
1Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, N.J., USA. rittling@mbc1.rutgers.edu
Experimental Nephrology
|April 24, 1999
Summary
Osteopontin (OPN) is a protein with unclear physiological roles. Studies using OPN knockout mice are beginning to reveal its function in various pathologies, clarifying whether it is protective or damaging.
Area of Science:
- Biochemistry and Molecular Biology
- Immunology
- Physiology
Background:
- Osteopontin (OPN) is a secreted phosphoprotein known to bind integrins.
- While OPN exhibits various in vitro activities and suggested in vivo functions, its precise role in mammalian physiology remains uncertain.
- Recent focus has been on OPN's involvement in diverse pathologies.
Purpose of the Study:
- To review existing data on OPN's role in pathological conditions.
- To analyze initial findings from OPN knockout mice.
- To determine whether OPN exerts a protective or damaging effect in different pathologies.
Main Methods:
- Review of scientific literature implicating OPN in various pathologies.
- Analysis of data from genetically engineered mice lacking the OPN gene (OPN knockout mice).
Main Results:
- Emerging data from OPN knockout mice are providing crucial insights into its physiological functions.
- The review synthesizes information on OPN's involvement in a spectrum of pathological conditions.
- Initial results address the dual role of OPN as potentially protective or detrimental.
Conclusions:
- Data from OPN knockout mice are essential for defining the protein's contribution to mammalian physiology and pathophysiology.
- Understanding OPN's specific effects in different pathologies is critical.
- Further research will clarify OPN's precise physiological and pathological significance.