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Articles 31 - 47 of 47
Full-Text Articles in Medical Molecular Biology
Portal Protein Functions Akin To A Dna-Sensor That Couples Genome-Packaging To Icosahedral Capsid Maturation., Ravi K. Lokareddy, Rajeshwer S. Sankhala, Ankoor Roy, Pavel V. Afonine, Tina Motwani, Carolyn M M. Teschke, Kristin N. Parent, Gino Cingolani
Portal Protein Functions Akin To A Dna-Sensor That Couples Genome-Packaging To Icosahedral Capsid Maturation., Ravi K. Lokareddy, Rajeshwer S. Sankhala, Ankoor Roy, Pavel V. Afonine, Tina Motwani, Carolyn M M. Teschke, Kristin N. Parent, Gino Cingolani
Department of Biochemistry and Molecular Biology Faculty Papers
Tailed bacteriophages and herpesviruses assemble infectious particles via an empty precursor capsid (or 'procapsid') built by multiple copies of coat and scaffolding protein and by one dodecameric portal protein. Genome packaging triggers rearrangement of the coat protein and release of scaffolding protein, resulting in dramatic procapsid lattice expansion. Here, we provide structural evidence that the portal protein of the bacteriophage P22 exists in two distinct dodecameric conformations: an asymmetric assembly in the procapsid (PC-portal) that is competent for high affinity binding to the large terminase packaging protein, and a symmetric ring in the mature virion (MV-portal) that has negligible affinity …
Urokinase Plasminogen Activator Expression Is Regulated By P53 Harboring The Lung Cancer-Specific Mutation V157f, Julie Barta, Md, Kristen Pauley, Steven B. Mcmahon, Phd
Urokinase Plasminogen Activator Expression Is Regulated By P53 Harboring The Lung Cancer-Specific Mutation V157f, Julie Barta, Md, Kristen Pauley, Steven B. Mcmahon, Phd
Department of Biochemistry and Molecular Biology Posters
OBJECTIVES
- To define the mutant p53-regulated transcriptome of lung cancer cells with alterations at V157 and R158 in the p53 tumor suppressor.
- To determine the biological effects of lung-enriched p53 mutations in lung cancer cells.
Cleavage Of Dfna5 By Caspase-3 During Apoptosis Mediates Progression To Secondary Necrotic/Pyroptotic Cell Death., Corey Rogers, Teresa Fernandes-Alnemri, Lindsey Mayes, Diana Alnemri, Gino Cingolani, Emad S. Alnemri
Cleavage Of Dfna5 By Caspase-3 During Apoptosis Mediates Progression To Secondary Necrotic/Pyroptotic Cell Death., Corey Rogers, Teresa Fernandes-Alnemri, Lindsey Mayes, Diana Alnemri, Gino Cingolani, Emad S. Alnemri
Department of Biochemistry and Molecular Biology Faculty Papers
Apoptosis is a genetically regulated cell suicide programme mediated by activation of the effector caspases 3, 6 and 7. If apoptotic cells are not scavenged, they progress to a lytic and inflammatory phase called secondary necrosis. The mechanism by which this occurs is unknown. Here we show that caspase-3 cleaves the GSDMD-related protein DFNA5 after Asp270 to generate a necrotic DFNA5-N fragment that targets the plasma membrane to induce secondary necrosis/pyroptosis. Cells that express DFNA5 progress to secondary necrosis, when stimulated with apoptotic triggers such as etoposide or vesicular stomatitis virus infection, but disassemble into small apoptotic bodies when DFNA5 …
Telomerase Reverse Transcriptase In Atherosclerosis, Hua Qing
Telomerase Reverse Transcriptase In Atherosclerosis, Hua Qing
Theses and Dissertations--Pharmacology and Nutritional Sciences
Telomerase reverse transcriptase (TERT) is the catalytic subunit of telomerase and the limiting factor for the enzyme activity. The expression of TERT and telomerase activity is increased in atherosclerotic plaques. However, the role of TERT dysregulation during atherosclerosis formation remains unknown.
The work herein first identified a multi-tiered regulation of TERT expression in smooth muscle cells (SMC) through histone deacetylase (HDAC) inhibition. HDAC inhibition induces TERT transcription and promoter activation. At the protein level in contrast, HDAC inhibition decreases TERT protein abundance through enhanced degradation, which decreases telomerase activity and induces senescence. Furthermore, during vascular remodeling in vivo, TERT protein …
The Role Of Menin-Mll Interaction In The Dissociation Between Cholestatic Liver Diseases And Cholangiocarcinoma, Laurent Ehrlich 2085637, Chad Hall Dr., Tori Sheppard, Julie Venter, April O'Brien, Terry C. Lairmore Dr., Gianfranco Alpini Dr., Shannon Glaser Dr.
The Role Of Menin-Mll Interaction In The Dissociation Between Cholestatic Liver Diseases And Cholangiocarcinoma, Laurent Ehrlich 2085637, Chad Hall Dr., Tori Sheppard, Julie Venter, April O'Brien, Terry C. Lairmore Dr., Gianfranco Alpini Dr., Shannon Glaser Dr.
Hepatobiliary Cancers: Pathobiology and Translational Advances
No abstract provided.
Hepatocellular Cancer Genome And Transcriptome Analysis Validates Clinically Significant Mutational Signatures With The Tgf-𝛃 Pathway, Shuyun Rao, Jian Chen, Kazufumi Ohshiro, Shoujun Gu, Sobia Zaidi, Wilma S. Jogunoori, Jon White, Nagarajan Pattabiraman, Raja Mazumder, Anelia Horvath, Ray-Chang Wu, Shulin Li, Chuxia Deng, Bibhuti Mishra, Rehan Akbanni, The Tcga Cancer Network, Lopa Mishra
Hepatocellular Cancer Genome And Transcriptome Analysis Validates Clinically Significant Mutational Signatures With The Tgf-𝛃 Pathway, Shuyun Rao, Jian Chen, Kazufumi Ohshiro, Shoujun Gu, Sobia Zaidi, Wilma S. Jogunoori, Jon White, Nagarajan Pattabiraman, Raja Mazumder, Anelia Horvath, Ray-Chang Wu, Shulin Li, Chuxia Deng, Bibhuti Mishra, Rehan Akbanni, The Tcga Cancer Network, Lopa Mishra
Hepatobiliary Cancers: Pathobiology and Translational Advances
No abstract provided.
Characterization, Regulation, And Targeting Of Erythroid Progenitors In Normal And Disordered Human Erythropoiesis, B. M. Dulmovits, J. Hom, A. Narla, N. Mohandas, L. Blanc
Characterization, Regulation, And Targeting Of Erythroid Progenitors In Normal And Disordered Human Erythropoiesis, B. M. Dulmovits, J. Hom, A. Narla, N. Mohandas, L. Blanc
Journal Articles
No abstract provided.
Levodopa-Induced Abnormal Involuntary Movements Correlate With Altered Permeability Of The Blood-Brain-Barrier In The Basal Ganglia, R. P. Lerner, V. Francardo, K. Fujita, Z. Bimpisidis, V. A. Jourdain, C. C. Tang, S. L. Dewey, T. Chaly, M. A. Cenci, D. Eidelberg
Levodopa-Induced Abnormal Involuntary Movements Correlate With Altered Permeability Of The Blood-Brain-Barrier In The Basal Ganglia, R. P. Lerner, V. Francardo, K. Fujita, Z. Bimpisidis, V. A. Jourdain, C. C. Tang, S. L. Dewey, T. Chaly, M. A. Cenci, D. Eidelberg
Journal Articles
© 2017 The Author(s). Chronic levodopa treatment leads to the appearance of dyskinesia in the majority of Parkinson's disease patients. Neurovascular dysregulation in putaminal and pallidal regions is thought to be an underlying feature of this complication of treatment. We used microPET to study unilaterally lesioned 6-hydroxydopamine rats that developed levodopa-induced abnormal involuntary movements (AIMs) after three weeks of drug treatment. Animals were scanned with [15O]-labeled water and [18F]-fluorodeoxyglucose, to map regional cerebral blood flow and glucose metabolism, and with [11C]-isoaminobutyric acid (AIB), to assess blood-brain-barrier (BBB) permeability, following separate injections of levodopa or saline. Multitracer scan data were acquired …
Unraveling Macrophage Heterogeneity In Erythroblastic Islands, K. G. Seu, J. Papoin, R. Fessler, J. Hom, G. Huang, N. Mohandas, L. Blanc, T. A. Kalfa
Unraveling Macrophage Heterogeneity In Erythroblastic Islands, K. G. Seu, J. Papoin, R. Fessler, J. Hom, G. Huang, N. Mohandas, L. Blanc, T. A. Kalfa
Journal Articles
No abstract provided.
Nicotinic Acetylcholine Receptor-Mediated Protection Of The Rat Heart Exposed To Ischemia Reperfusion, S. A. Mavropoulos, N. S. Khan, A. C. J. Levy, B. T. Faliks, C. P. Sison, V. A. Pavlov, Y. Zhang, K. Ojamaa
Nicotinic Acetylcholine Receptor-Mediated Protection Of The Rat Heart Exposed To Ischemia Reperfusion, S. A. Mavropoulos, N. S. Khan, A. C. J. Levy, B. T. Faliks, C. P. Sison, V. A. Pavlov, Y. Zhang, K. Ojamaa
Journal Articles
No abstract provided.
Multifaceted Role Of Neuropilins In The Immune System: Potential Targets For Immunotherapy., Sohini Roy, Arup K. Bag, Rakesh Singh, James E. Talmadge, Surinder K. Batra, Kaustubh Datta
Multifaceted Role Of Neuropilins In The Immune System: Potential Targets For Immunotherapy., Sohini Roy, Arup K. Bag, Rakesh Singh, James E. Talmadge, Surinder K. Batra, Kaustubh Datta
Journal Articles: Biochemistry & Molecular Biology
Neuropilins (NRPs) are non-tyrosine kinase cell surface glycoproteins expressed in all vertebrates and widely conserved across species. The two isoforms, such as neuropilin-1 (NRP1) and neuropilin-2 (NRP2), mainly act as coreceptors for class III Semaphorins and for members of the vascular endothelial growth factor family of molecules and are widely known for their role in a wide array of physiological processes, such as cardiovascular, neuronal development and patterning, angiogenesis, lymphangiogenesis, as well as various clinical disorders. Intriguingly, additional roles for NRPs occur with myeloid and lymphoid cells, in normal physiological as well as different pathological conditions, including cancer, immunological disorders, …
Targeting Hepatocellular Carcinoma Through Tgf-Β Pathway E3 Ligases, Kazufumi Ohshiro, Jian Chen, Shulin Li, Jon White, Asif Rashid, Lopa Mishra
Targeting Hepatocellular Carcinoma Through Tgf-Β Pathway E3 Ligases, Kazufumi Ohshiro, Jian Chen, Shulin Li, Jon White, Asif Rashid, Lopa Mishra
Hepatobiliary Cancers: Pathobiology and Translational Advances
No abstract provided.
The Role Of Frabin (Fgd4) In Aggressive Prostate Cancer, Alexia M. Bossan
The Role Of Frabin (Fgd4) In Aggressive Prostate Cancer, Alexia M. Bossan
Honors Undergraduate Theses
A major problem in prostate cancer (PCa) management is the development of drug resistance. It is known that there are changes in PCa biology upon prolonged treatment with drugs, including anti-androgen drugs that alter cellular signaling processes leading to the development of castration resistant PCa. MicroRNAs (miRNAs) are regulatory molecules that modulate gene expression through inhibition of protein translation and modulate cellular functions. Altered expression of miRNAs is often noted in drug resistant cancer including PCa. Studies from our laboratory have identified a number of down-regulated miRNAs in PCa, including miR-l 7-92a miRNAs. Frabin (FGD4) is a target of the …
An Rnai Screen To Identify Components Of A Polyamine Transport System, Adam J. Foley
An Rnai Screen To Identify Components Of A Polyamine Transport System, Adam J. Foley
Honors Undergraduate Theses
Polyamines, specifically putrescine, spermidine, and spermine, are small cationic molecules found in all organisms. Cells can biosynthetically make these molecules, or alternatively, they can be transported from the extracellular environment. Malignant cells have been shown to require relatively high amounts of polyamines. There is a chemotherapeutic agent, DFMO, used to block the biosynthesis of polyamines. Many malignant cells can circumvent DFMO therapy by activating their transport system. A potential solution is to simultaneously block biosynthesis and transport of polyamines. However, little is known about the polyamine transport system in higher eukaryotes.
This thesis aims to add to the basic biological …
Validating Drug Targets Through Inhibition Of Protein-Protein Interactions In Mycobacterium Tuberculosis, Erin C. Driscoll
Validating Drug Targets Through Inhibition Of Protein-Protein Interactions In Mycobacterium Tuberculosis, Erin C. Driscoll
Honors Undergraduate Theses
Tuberculosis is the leading cause of death by single infectious disease worldwide; novel antibiotics are needed to continue to treat this disease. To goal of this project is to provide proof-of-principle support for the idea that targeting protein-protein interactions (PPI) is an appropriate course for the discovery of new drugs. This study optimized the M-PFC assay, which allows detection of PPI in Mycobacteria, through the use of stronger promoters and inducible expression of a peptide blocker by riboswitch. To accomplish this, promoter induction studies were used to find stronger promoters for the M-PFC, optimization of the riboswitch as a …
Characterization Of Malt1 Inhibitors And Their Effect On Leukemic Cell Growth Properties, Christina Snyder
Characterization Of Malt1 Inhibitors And Their Effect On Leukemic Cell Growth Properties, Christina Snyder
Graduate School of Biomedical Sciences Theses and Dissertations
Leukemia is the most common childhood cancer, with a combined 40,000 predicted new cases in the United States in 2016 [8]. The two most common subtypes are acute myeloid leukemia (AML) and chronic lymphocytic leukemia (CLL) [9-11]. The commercially available inhibitor of Bruton’s tyrosine kinase (BTK) has shown promising results in clinical trials for CLL because of the importance of BCR signaling in CLL [12-15]. Recent studies suggest that the outgrowth of BTK inhibitor resistant clonal cells in some CLL patients results in a treatment-refractory phenotype [16-18]. MALT1, a protein involved in BCR activation of the NF-κB pathway that functions …
Factors Regulating Features Of Metabolic Syndrome, Sonja S. Pijut
Factors Regulating Features Of Metabolic Syndrome, Sonja S. Pijut
Theses and Dissertations--Pharmacy
The collective presence of central obesity, low HDL-cholesterol, and elevated triglycerides, blood pressure, and fasting blood glucose constitutes Metabolic Syndrome (MetS), a disease state that increases the risk of cardiovascular disease (CVD) and Type 2 Diabetes Mellitus (T2DM). Nonalcoholic fatty liver disease (NAFLD), present in up to 90% of obese adults, is also linked to MetS. As in CVD, disruptions in cholesterol metabolism play a contributing role in the development of T2DM and NAFLD. Genes involved in cholesterol synthesis, secretion, and catabolism are diurnally regulated in the liver and adipose. Disruptions in the sleep-wake cycle are thought to potentiate metabolic …