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Full-Text Articles in Molecular Biology
The Roles Of Malt1 In Nf-Κb Activation And Solid Tumor Progression, Deng Pan
The Roles Of Malt1 In Nf-Κb Activation And Solid Tumor Progression, Deng Pan
Dissertations & Theses (Open Access)
The transcription factor NF-κB plays a central role in many aspects of biological processes and diseases, such as inflammation and cancer. Although it has been suggested thatNF-κB is critical in tumorigenesis and tumor progression, the molecular mechanism by which NF-κB is activated in solid tumor remains largely unknown. In the current work, we focus on growth factor receptor-induced NF-κB activation and tumor progression, including epidermal growth factor receptor (EGFR)-induced NF-κB in lung cancer and heregulin receptor (HER2)-induced NF-κB in breast cancer. We found that Mucosa-associated lymphoma translocation protein 1 (MALT1), also known as paracaspase, is required for EGFR-induced NF-κB activation …
Atm Phosphorylates Subunit A Of Pp2a Resulting In Its Nuclear Export And Spatiotemporal Regulation Of The Dna Damage Response, Amrita D. Sule
Atm Phosphorylates Subunit A Of Pp2a Resulting In Its Nuclear Export And Spatiotemporal Regulation Of The Dna Damage Response, Amrita D. Sule
Theses and Dissertations
Ataxia telangiectasia mutated (ATM) is a serine-threonine protein kinase and major regulator of the DNA damage response (DDR). One critical ATM target is protein phosphatase 2A (PP2A) known to regulate diverse cellular processes such as mitosis and cell growth as well as dephosphorylation of many proteins during the recovery from the DDR while returning the cell to normalcy. Interestingly, ATM and PP2A are known to form an auto-regulatory yin-yang kinase-phosphatase relationship. Herein, we show that the phosphorylation of the PP2A-Aα structural subunit at S401 by ATM results in nuclear export, which regulates the DDR at multiple levels and affects genomic …
Mechanisms And Dynamics Of Oxidative Dna Damage Repair In Nucleosomes, Wendy J. Cannan
Mechanisms And Dynamics Of Oxidative Dna Damage Repair In Nucleosomes, Wendy J. Cannan
Graduate College Dissertations and Theses
DNA provides the blueprint for cell function and growth, as well as ensuring continuity from one cell generation to the next. In order to compact, protect, and regulate this vital information, DNA is packaged by histone proteins into nucleosomes, which are the fundamental subunits of chromatin. Reactive oxygen species, generated by both endogenous and exogenous agents, can react with DNA, altering base chemistry and generating DNA strand breaks. Left unrepaired, these oxidation products can result in mutations and/or cell death. The Base Excision Repair (BER) pathway exists to deal with damaged bases and single-stranded DNA breaks. However, the packaging of …