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Apoptosis

Cancer Biology

Undergraduate Honors Theses

Publication Year

Articles 1 - 2 of 2

Full-Text Articles in Cell Biology

Homothorax Is A Modifier Of Radiation Sensitivity In Drosophila Melanogaster Bantam Mutants, Geoffrey Meyerhof Jan 2017

Homothorax Is A Modifier Of Radiation Sensitivity In Drosophila Melanogaster Bantam Mutants, Geoffrey Meyerhof

Undergraduate Honors Theses

Radiation resistance in human cancers represents a massive impediment for successful tumor treatment. The fruit fly Drosophila melanogaster is an excellent model for human radiation resistance because of its largely conserved apoptotic pathways and malleable genome. This thesis investigates the genetic regulatory mechanisms for bantam (ban), an anti-apoptotic microRNA. To first identify genes that interact with ban, a forward genetic screen was conducted. This screen looked for genes that yielded radiation dependent pupal lethality in a ban deficient background. From this screen the transcription factor, homothorax, was identified as displaying radiation dependent synthetic lethality with ban. To investigate the mechanism ...


The Bbc3 Antisense Intragenic Transcript, Bait, Contributes To Puma Expression By A P53-Autonomous Mechanism, Nicole C. Michael Jan 2015

The Bbc3 Antisense Intragenic Transcript, Bait, Contributes To Puma Expression By A P53-Autonomous Mechanism, Nicole C. Michael

Undergraduate Honors Theses

p53 is a tumor suppressor protein which orchestrates cell cycle arrest or apoptosis to prevent the hyperproliferation of cells which could lead to cancer. However, when p53 is inactivated, which happens in over 50% of cancers, it fails to induce PUMA, a potent apoptotic protein. Loss of PUMA makes cancer cells less likely to undergo apoptosis upon stress stimuli. Recent GRO-seq data revealed unique antisense transcription initiated 6kb into the PUMA locus, creating a small noncoding RNA transcript dubbed BAIT (BBC3 antisense intragenic transcript). This project focused on understanding the expression and function of BAIT, which we hypothesized could modulate ...