Luis Martinez-Lemus, PhD, DVM
Professor, Department of Medical Pharmacology and PhysiologyOffice Location: 222A DCRC
Office Phone: 573-882-3244
MartinezLemusL@missouri.edu
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Research Interests
Vascular Physiology with emphasis on the mechanisms responsible for the acute and chronic control of vascular diameter in the microcirculation.
Research Description
Martinez-Lemus' research is focused on the mechanisms responsible for the architectural transformation of blood vessels also known as vascular remodeling. Vascular remodeling is a hallmark for numerous cardiovascular diseases, yet numerous questions remain to be answered regarding the mechanisms that control this process, such as: What stimuli drive the remodeling process? How do blood vessels detect those stimuli? or What are the mechanisms initiating the remodeling and under which conditions are they counterproductive participating in disease states?
Currently funded research in Martinez-Lemus' laboratory is focused on determining the changes in the position and function of cells within the intact blood vessel wall that occur in response to common mechanical and vasoactive biochemical stimuli. His studies indicate that cells within the vascular wall rapidly change their position in response to stimulation in as little as four hours. This adaptive cell behavior appears to allow the vessel to maintain a reduced diameter for extended periods of time with reduced levels of activation and energy expenditure. An additional goal is focused on determining the changes in the structure and compliance of the extracellular matrix that occur during the initial stages of the remodeling process.
Professional Background
- Received DVM from the National Autonomous University of Mexico, Mexico City.
- Received MS from Auburn University.
- Received PhD from Texas A&M University.
- Completed American Heart Association (AHA)-sponsored postdoctoral fellowship at Cardiovascular Research Institute, Texas A&M University.
- Received the American Physiological Society Research Career Enhancement Award.
- Member of the European Society for Microcirculation, the American Physiological Society, the Poultry Science Association, and the Microcirculatory Society.
- Member of the Editorial Bord for Microcirculation and Frontiers in Vascular Physiology.
- Acts as reviewer of several physiological journals.
Selected Publications
Waitkus-Edwards K. R., L. A. Martinez-Lemus, X. Wu, J. P. Trzeciakowski, M. J. Davis, G. E. Davis, and G. A. Meininger, 2002. a4b1 Integrin activation of L-type calcium channels in vascular smooth muscle causes arteriole vasoconstriction. Circ. Res. 90:473-480. (Featured in cover and editorial).
Martinez-Lemus, L.A., X. Wu, E. Wilson, M. A. Hill, M. J. Davis, G. E. Davis, and G. A. Meininger, 2003. Integrins as unique receptors for vascular control. J. Vasc. Res. 40:211-233.
Martinez-Lemus, L.A., M.A. Hill, S.S. Bolz, U. Pohl, and G.A. Meininger, 2004. Acute Mechanoadaptation of Vascular Smooth Muscle Cells in Response to Continuous Arteriolar Vasoconstriction: Implications for Functional Remodeling. FASEB J. 18:708-710.
Martinez-Lemus, L.A., T. Crow, M.J. Davis, G.A. Meininger, 2005. a5b1 and avb3 integrin blockade inhibit the myogenic response of skeletal muscle resistance arterioles. Am. J. Physiol. 289:H322-H329.19.
Hill, M.A., Z. Sun, L.A. Martinez-Lemus, and G.A. Meininger, 2007. New technologies to dissect the arteriolar myogenic response. Trends. Pharmacol. Sci. 28:308-315.
Martinez-Lemus, L.A., 2008. Persistent agonist-induced vasoconstriction is not required for angiotensin-II to mediate inward remodeling of isolated arterioles with myogenic tone. J. Vasc. Res. 45:211-221.
Sun, Z., L.A. Martinez-Lemus, M.A. Hill, and G.A. Meininger, 2008. Extracellular matrix-specific focal adhesions in vascular smooth muscle produce mechanically active adhesion sites. Am. J. Physiol. 295:C268-78.
Martinez-Lemus, L.A., M.A. Hill, and G.A. Meininger, 2009. The plastic nature of the vascular wall: a continuum of vascular events contributing to control of vascular diameter and structure. Physiology 24:45-57.
Martinez-Lemus, L.A., G. Zhao, E.L. Galiñanes, and M. Boone, 2011. Inward remodeling of resistance arteries requires reactive oxygen species-dependent activation of matrix metalloproteinases. Am. J. Physiol. 300:H2005-H2015
Schenewerk, A., C. Foote, L.A. Martinez-Lemus, and R.M. Rivera. The effect of maternal high fat diet and ART on cardiovascular health and body weight in offspring. Presented at the Rocky Mountain Reproductive Sciences Symposium. Loveland, CO, April 19, 2013.
Staiculescu, M.C., Z. Hong, Z. Sun, F. Ramirez-Perez, G.A. Meininger, L.A. Martinez-Lemus. Lysophosphatidic acid-induced integrin activation in vascular smooth muscle cells requires production of reactive oxygen species. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
Foote, C., F.I. Ramirez-Perez, M.A. Hill, G.A. Meininger, L.A. Martinez-Lemus. Topical application of serotonin + L-NAME in vivo induces inward remodeling of the rat cremasteric 1A arteriole via a mechanism that is antagonized by the addition of cystamine, a competitive inhibitor of transglutaminase II. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
Ramirez-Perez, F.I., A. Schenewerk, C. Foote, G. Zhao, R.M. Rivera, L.A. Martinez-Lemus. Mice produced by the use of assisted reproductive technologies from dams provided a high-fat and – fructose diet have reduced arterial vasodilation responses to acetylcholine. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
Zhao, G., J.A. Castorena-Gonzalez, J.R. Sowers, L.A. Martinez-Lemus. Differential remodeling characteristics of femoral and mesenteric arteries from mice with diet-induced obesity. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
Castorena-Gonzalez, J.A., M.C. Staiculescu, G. Zhao, L.A. Martinez-Lemus. Contribution of the actin cytoskeleton to the viscoelastic characteristics of inwardly remodeled arterioles. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
Martinez-Lemus, L.A., R.A. de la Torre, E.L. Galiñanes, M.J. Perna, G. Zhao, J.A. Castorena-Gonzalez. Arterioles from bariatric patients with diabetes have blunted responses to insulin but not acetylcholine. Annual Meeting of the Societies for Experimental Biology. Boston, MA, April 2013. Published in FASEB J., 2013.
