Theses and Dissertations

Issuing Body

Mississippi State University


Wise, A. Dwayne

Committee Member

Reichert, A. Nancy

Committee Member

Coats, Karen

Committee Member

Ryan, L. Peter

Date of Degree


Document Type

Graduate Thesis - Open Access


Biological Sciences

Degree Name

Master of Science


College of Arts and Sciences


Department of Biological Sciences


Glioblastoma multiforme (GBM) is an extremely aggressive and almost always fatal brain tumor. GBM literature indicates defective mismatch repair (MMR) mechanisms are not involved in GBM tumorigenesis as in other tumors, and instigating mechanisms of GBM tumorigenesis remain unclear. GBM and neural progenitor (NPR) cells were exposed to three concentrations of H2O2 (0, 0.5, and 1.0 μM), cultured, and then harvested 0, 2, 4, and 6 days post-exposure; DNA from cells was amplified with microsatellite primers, investigating whether or not H2O2 exposure affected microsatellite instability (MSI) in target sequences. Three out of six markers showed significant MSI in the H2O2-exposed NPR cells. Our results suggest H2O2, which generates reactive oxygen species (ROS), correlated with MSI accumulation that occurred in NPR cells in specific DNA regions. Thus, gene expression analysis to assess normal and abnormal gene expression of GBM and NPR cellss is warranted.



angiogenic factors||glioblastoma multiforme||microsatellite instability||oxidative stress||tumorigenesis