Matthew M. Harper, PhD
Introduction
The overall goal of my research program is to understand the effects of traumatic brain injury on the visual system. My lab has chosen to examine the visual system because of its highly accessible nature and the ability to examine retinal structure and function over time, which provides longitudinal information that is not possible to examine in the brain. Using animal models we have found that retinal ganglion cells in the eye are highly susceptible to blast-mediated traumatic brain injury, and that this damage is variable based on genetic background. Understanding the physiology of retinal ganglion cells after injury has allowed us to begin to define the molecular pathways by which these cells become dysfunctional and subsequently die after injury. We are currently developing and testing novel therapies to prevent and rehabilitate damage to the visual system after TBI. We are hopeful that these therapies can be extended to treat other diseases affecting retinal ganglion cells and the optic nerve.
Current Positions
- Associate Professor of Ophthalmology and Visual Sciences
Education
- BS in Biology, Iowa State University, Ames, Iowa, United States
- PhD in Neuroscience Graduate Program, Iowa State University, Ames, Iowa, United States
- Postdoctoral Fellow in Neuroscience, Iowa State University, Ames, Iowa, United States
Center, Program and Institute Affiliations
Research Interests
- Center for the Prevention and Treatment of Visual Loss, Traumatic Brain Injury
- Teaching interests include: General Biology, Neuroscience, Anatomy & Physiology, Cell and Molecular biology, Genetics, Natural Sciences
- Evaluation of retinal functional and structural outcomes in rodent models of damage and disease
- Neuroprotection of the brain and eye after blast-mediated TBI
Selected Publications
- MM Harper, B Blits, D Zamzow, J Buss, MB Bunge, DS Sakaguchi. (2004). Lentiviral Vectors to Engineer Stem and Retinal Progenitor Cells Ex Vivo for Retinal Repair Strategies. Iowa State University Stem Cell Symposium. Ames, IA.
- MM Harper, RT Doyle, DS Sakaguchi. Mesenchymal Stem Cells Induce Glial Differentiation of Brain Progenitor Cells. Society for Neuroscience Annual Meeting. New Orleans, LA.
- Navarro VM, Boehme N, Wasserman EA, Harper MM. (2024). Enhanced attention in rats following blast-induced traumatic brain injury. Heliyon 10(4):e25661. DOI: 10.1016/j.heliyon.2024.e25661. PMID: 38384534. PMCID: PMC10878867.
- Harper MM, Boehme NA, Dutca L, Navarro V. (2024). Increasing the number and intensity of shock tube generated blast waves leads to earlier retinal ganglion cell dysfunction and regional cell death. Exp Eye Res 239:109754. DOI: 10.1016/j.exer.2023.109754. PMID: 38113955.
- Harper MM, Gramlich OW, Elwood BW, Boehme NA, Dutca LM, Kuehn MH. (2022). Immune responses in mice after blast-mediated traumatic brain injury TBI autonomously contribute to retinal ganglion cell dysfunction and death. Exp Eye Res 225:109272. DOI: 10.1016/j.exer.2022.109272. PMID: 36209837.
- Clark AT, Abrahamson EE, Harper MM, Ikonomovic MD. (2022). Chronic effects of blast injury on the microvasculature in a transgenic mouse model of Alzheimer's disease related Aβ amyloidosis. Fluids Barriers CNS 19(1):5. DOI: 10.1186/s12987-021-00301-z. PMID: 35012589. PMCID: PMC8751260.
- Harper MM, Boehme N, Dutca LM, Anderson MG. (2021). The Retinal Ganglion Cell Response to Blast-Mediated Traumatic Brain Injury Is Genetic Background Dependent. Invest Ophthalmol Vis Sci 62(7):13. DOI: 10.1167/iovs.62.7.13. PMID: 34106210. PMCID: PMC8196410.
- Allen RS, Motz CT, Singh A, Feola A, Hutson L, Douglass A, Ramachandra Rao S, Skelton LA, Cardelle L, Bales KL, Chesler K, Gudapati K, Ethier CR, Harper MM, Fliesler SJ, Pardue MT. (2021). Dependence of visual and cognitive outcomes on animal holder configuration in a rodent model of blast overpressure exposure. Vision Res 188:162-173. DOI: 10.1016/j.visres.2021.07.008. PMID: 34333201. PMCID: PMC8440444.
- Shin MK, Vázquez-Rosa E, Cintrón-Pérez CJ, Riegel WA, Harper MM, Ritzel D, Pieper AA. (2021). Characterization of the Jet-Flow Overpressure Model of Traumatic Brain Injury in Mice. Neurotrauma Rep 2(1):1-13. DOI: 10.1089/neur.2020.0020. PMID: 33748810. PMCID: PMC7962691.
- Vázquez-Rosa E, Shin MK, Dhar M, Chaubey K, Cintrón-Pérez CJ, Tang X, Liao X, Miller E, Koh Y, Barker S, Franke K, Crosby DR, Schroeder R, Emery J, Yin TC, Fujioka H, Reynolds JD, Harper MM, Jain MK, Pieper AA. (2020). P7C3-A20 treatment one year after TBI in mice repairs the blood-brain barrier, arrests chronic neurodegeneration, and restores cognition. Proc Natl Acad Sci USA 117(44):27667-27675. DOI: 10.1073/pnas.2010430117. PMID: 33087571. PMCID: PMC7959512.