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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

University of Alabama at Birmingham

2009

Cancer

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Full-Text Articles in Medicine and Health Sciences

Regulation Of Redox Signaling By Lipid Electrophiles In Breast Cancer, Anne R. Diers Jan 2009

Regulation Of Redox Signaling By Lipid Electrophiles In Breast Cancer, Anne R. Diers

All ETDs from UAB

A number of steps in breast cancer progression and metastasis are regulated by redox signaling pathways. Electrophilic lipids such as 15-deoxy-delta12,14-Prostaglandin J2 (15d-PGJ2) are mediators of redox signaling pathways because of their ability to modify critical cysteine residues (thiols) in redox-sensitive proteins. In this thesis, we examine the effect of lipid electrophiles such as 15d-PGJ2 and others on redox signaling pathways in breast cancer. Furthermore, we develop new strategies to regulate cancer cell behavior in response to lipid electrophiles using three strategies: 1) through organelle-specific targeting of electrophiles 2) by exploiting the concentration-dependence of effects of electrophiles, and 3) utilizing …


The Peptidyl-Prolyl Isomerase Pin1 Promotes Nf-Kappab And Stat3 Signaling In Glioblastoma, George Prescott Atkinson Jan 2009

The Peptidyl-Prolyl Isomerase Pin1 Promotes Nf-Kappab And Stat3 Signaling In Glioblastoma, George Prescott Atkinson

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Glioblastoma (GBM) is an incurable tumor of the central nervous system (CNS). Over the past 50 years, little progress has made in improving the quality of life and median lifespans of patients who are diagnosed with this devastating disease. However, new insights into the aberrant signaling pathways at the root of GBM pathology are providing new targets for next generation cancer therapies. Two signaling pathways that are commonly upregulated in GBM are NF-kappaB and STAT3. Importantly, tumor models in which NF-kappaB and STAT3 signaling are inhibited have demonstrated the importance of these pathways to GBM growth and proliferation. Therefore, better …


Mouse Modeling Of Pancreatic Ductal Adenocarcinoma (Pdac); Search For Early Diagnostic Markers And Therapeutic Targets, Kyoko Kojima Jan 2009

Mouse Modeling Of Pancreatic Ductal Adenocarcinoma (Pdac); Search For Early Diagnostic Markers And Therapeutic Targets, Kyoko Kojima

All ETDs from UAB

PDAC is a highly malignant neoplasm that carries a very poor prognosis. PDAC development is a multistage transformation process that involves multiple genetic alterations that include activation of EGFR/HER2 and KRAS, and loss-of-function mutations in INK4A/ARF, p53 and SMAD4. In recent years, several genetically engineered mouse models that accurately recapitulate human pancreatic neoplasia have been developed. Histological characterizations of those models have revealed possible roles for the mutated RAS, INK4a/ARF and p53 in pancreatic tumorigenesis. However, the role of SMAD4 mutation, which is associated with late stages of tumor progression, has yet to be explored. Additionally, those models that would …