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Molecular Biology

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University of Central Florida

Theses/Dissertations

2011

Chemotherapy; Dna; Homologous recombination; Nonhomologous end joining; Poison; Repair; Topoisomerase

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Analysis Of The Repair Of Topoisomerase Ii Dna Damage, Eric D. Goldstein May 2011

Analysis Of The Repair Of Topoisomerase Ii Dna Damage, Eric D. Goldstein

HIM 1990-2015

A large number of anti-cancer chemotherapeutics target DNA topoisomerases. Etoposide is a specific topoisomerase II poison which causes reversible double strand DNA breaks. The focus of this project is to analyze the repair of DNA damage induced by etoposide.. Double strand DNA break repair is mediated by through either non-homologous end joining (NHEJ) or homologous recombination. NHEJ repairs through direct ligation of a double stranded break while homologous recombination utilizes a homologous template to recover the wild type sequence. A reporter cassette, RYDR-GFP, has been stably integrated into HeLa cells. This reporter contains an ultra-high affinity topoisomerase II cleavage site …