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Investigating The Effects Of Particulate Hexavalent Chromium On The Centriole Linkers, Julieta Martino
Investigating The Effects Of Particulate Hexavalent Chromium On The Centriole Linkers, Julieta Martino
Electronic Theses and Dissertations
Particulate hexavalent chromium (Cr(VI)) compounds are human lung carcinogens. However, their carcinogenicity is poorly understood. The best model for Cr(VI)-induced carcinogenesis involves the acquisition of structural and numerical chromosome instability (CIN). Many mechanisms contribute to CIN. Among these, centrosomes play a pivotal role because they dictate proper segregation of chromosomes during cell division. Cr(VI) causes centrosome amplification, a phenotype where cells have extra centrosomes and hence can undergo unequal distribution of chromosomes resulting in CIN. How Cr(VI) induces these abnormalities is unknown. Moreover, whether Cr(VI)-induced centrosome amplification is a permanent phenotypic change is also unknown. This work investigates the permanence …