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Articles 1 - 20 of 20
Full-Text Articles in Molecular Biology
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Katherine A. Fitzgerald
Fibrosis, driven by inflammation, marks the transition from benign to progressive stages of chronic liver diseases. Although inflammation promotes fibrogenesis, it is not known whether other events, such as hepatocyte death, are required for the development of fibrosis. Interferon Regulatory Factor 3 (IRF3) regulates hepatocyte apoptosis and production of Type-I interferons (IFNs). In the liver, IRF3 is activated via Toll-like receptor 4 (TLR4) signaling or the ER adapter, Stimulator of Interferon Genes (STING). We hypothesized that IRF3-mediated hepatocyte death is an independent determinant of chemically-induced liver fibrogenesis. To test this, we performed acute or chronic carbontetrachloride (CCl4) administration to WT, …
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Endoplasmic Reticulum Stress-Induced Hepatocellular Death Pathways Mediate Liver Injury And Fibrosis Via Stimulator Of Interferon Genes., Arvin Iracheta-Vellve, Jan Petrasek, Benedek Gyongyosi, Abhishek Satishchandran, Patrick Lowe, Karen Kodys, Donna Catalano, Charles D. Calenda, Evelyn A. Kurt-Jones, Kate A. Fitzgerald, Gyongyi Szabo
Gyongyi Szabo
Fibrosis, driven by inflammation, marks the transition from benign to progressive stages of chronic liver diseases. Although inflammation promotes fibrogenesis, it is not known whether other events, such as hepatocyte death, are required for the development of fibrosis. Interferon Regulatory Factor 3 (IRF3) regulates hepatocyte apoptosis and production of Type-I interferons (IFNs). In the liver, IRF3 is activated via Toll-like receptor 4 (TLR4) signaling or the ER adapter, Stimulator of Interferon Genes (STING). We hypothesized that IRF3-mediated hepatocyte death is an independent determinant of chemically-induced liver fibrogenesis. To test this, we performed acute or chronic carbontetrachloride (CCl4) administration to WT, …
Jmh Dissertation 2016.Pdf, Jennifer Hayashi
Jmh Dissertation 2016.Pdf, Jennifer Hayashi
Jennifer Hayashi
Rna Sequencing Analysis Of The Developing Chicken Retina, Christophe Langouet-Astrie*, Annamarie Meinsen*, Emily R. Grunwald*, Stephen Turner, Raymond A. Enke
Rna Sequencing Analysis Of The Developing Chicken Retina, Christophe Langouet-Astrie*, Annamarie Meinsen*, Emily R. Grunwald*, Stephen Turner, Raymond A. Enke
Ray Enke Ph.D.
Connecting Common Genetic Polymorphisms To Protein Function: A Modular Project Sequence For Lecture Or Lab, Christopher E. Berndsen, Byron H. Young, Quinlin Mccormick*, Raymond A. Enke
Connecting Common Genetic Polymorphisms To Protein Function: A Modular Project Sequence For Lecture Or Lab, Christopher E. Berndsen, Byron H. Young, Quinlin Mccormick*, Raymond A. Enke
Ray Enke Ph.D.
Discovery And Characterization Of A Potent And Selective Inhibitory Of Aedes Aegypti Inward Rectifier Potassium Channels, Matthew F. Rouhier, Rene Raphemot, Daniel R. Swale, Emily Days, C. David Weaver, Kimberly M. Lovell, Leah C. Konkel, Darren W. Engers, Sean F. Bollinger, Corey Hopkins, Peter M. Piermarini, Jerod S. Denton
Discovery And Characterization Of A Potent And Selective Inhibitory Of Aedes Aegypti Inward Rectifier Potassium Channels, Matthew F. Rouhier, Rene Raphemot, Daniel R. Swale, Emily Days, C. David Weaver, Kimberly M. Lovell, Leah C. Konkel, Darren W. Engers, Sean F. Bollinger, Corey Hopkins, Peter M. Piermarini, Jerod S. Denton
Matthew F Rouhier
Vector-borne diseases such as dengue fever and malaria, which are transmitted by infected female mosquitoes, affect nearly half of the world's population. The emergence of insecticide-resistant mosquito populations is reducing the effectiveness of conventional insecticides and threatening current vector control strategies, which has created an urgent need to identify new molecular targets against which novel classes of insecticides can be developed. We previously demonstrated that small molecule inhibitors of mammalian Kir channels represent promising chemicals for new mosquitocide development. In this study, high-throughput screening of approximately 30,000 chemically diverse small-molecules was employed to discover potent and selective inhibitors of Aedes …
Activation-Triggered Subunit Exchange Between Camkii Holoenzymes Facilitates The Spread Of Kinase Activity, Margaret M. Stratton, I H. Lee, M Bhattacharyya, S M. Christensen, L H. Chao, H Schulman, J T. Groves, J Kuriyan
Activation-Triggered Subunit Exchange Between Camkii Holoenzymes Facilitates The Spread Of Kinase Activity, Margaret M. Stratton, I H. Lee, M Bhattacharyya, S M. Christensen, L H. Chao, H Schulman, J T. Groves, J Kuriyan
Margaret Stratton
The activation of the dodecameric Ca2+/calmodulin dependent kinase II (CaMKII) holoenzyme is critical for memory formation. We now report that CaMKII has a remarkable property, which is that activation of the holoenzyme triggers the exchange of subunits between holoenzymes, including unactivated ones, enabling the calcium-independent phosphorylation of new subunits. We show, using a single-molecule TIRF microscopy technique, that the exchange process is triggered by the activation of CaMKII, and that exchange is modulated by phosphorylation of two residues in the calmodulin-binding segment, Thr 305 and Thr 306. Based on these results, and on the analysis of molecular dynamics simulations, we …
Structural And Molecular Analysis Of A Protective Epitope Of Lyme Disease Antigen Ospa And Antibody Interactions, Shivender Shandilya, Nese Kurt Yilmaz, Ejemel Monir, Andrew Sadowski, William D. Thomas, Mark S. Klempner, Celia A. Schiffer, Yan Wang
Structural And Molecular Analysis Of A Protective Epitope Of Lyme Disease Antigen Ospa And Antibody Interactions, Shivender Shandilya, Nese Kurt Yilmaz, Ejemel Monir, Andrew Sadowski, William D. Thomas, Mark S. Klempner, Celia A. Schiffer, Yan Wang
Celia A. Schiffer
The murine monoclonal antibody LA-2 recognizes a clinically protective epitope on outer surface protein (OspA) of Borrelia burgdorferi, the causative agent of Lyme disease in North America. Human antibody equivalence to LA-2 is the best serologic correlate of protective antibody responses following OspA vaccination. Understanding the structural and functional basis of the LA-2 protective epitope is important for developing OspA-based vaccines and discovering prophylactic antibodies against Lyme disease. Here, we present a detailed structure-based analysis of the LA-2/OspA interaction interface and identification of residues mediating antibody recognition. Mutations were introduced into both OspA and LA-2 based on computational predictions on …
P-Rex1 Promotes Resistance To Vegf/Vegfr-Targeted Therapy In Prostate Cancer, Hira Lal Goel, Bryan M. Pursell, Leonard D. Shultz, Dale L. Greiner, Rolf A. Brekken, Craig W. Vander Kooi, Arthur M. Mercurio
P-Rex1 Promotes Resistance To Vegf/Vegfr-Targeted Therapy In Prostate Cancer, Hira Lal Goel, Bryan M. Pursell, Leonard D. Shultz, Dale L. Greiner, Rolf A. Brekken, Craig W. Vander Kooi, Arthur M. Mercurio
Arthur M. Mercurio
Autocrine VEGF signaling is critical for sustaining prostate and other cancer stem cells (CSCs), and it is a potential therapeutic target, but we observed that CSCs isolated from prostate tumors are resistant to anti-VEGF (bevacizumab) and anti-VEGFR (sunitinib) therapy. Intriguingly, resistance is mediated by VEGF/neuropilin signaling, which is not inhibited by bevacizumab and sunitinib, and it involves the induction of P-Rex1, a Rac GEF, and consequent Rac1-mediated ERK activation. This induction of P-Rex1 is dependent on Myc. CSCs isolated from the PTEN(pc-/-) transgenic model of prostate cancer exhibit Rac1-dependent resistance to bevacizumab. Rac1 inhibition or P-Rex1 downregulation increases the sensitivity …
Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Ellen W. Moomaw
Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Ellen W. Moomaw
Ellen Moomaw
Isothermal titration calorimetry (ITC) may be used to determine the kinetic parameters of enzymecatalyzed reactions when neither products nor reactants are spectrophotometrically visible and when the reaction products are unknown. We report here the use of the multiple injection method of ITC to characterize the catalytic properties of oxalate oxidase (OxOx) from Ceriporiopsis subvermispora (CsOxOx), a manganese dependent enzyme that catalyzes the oxygen-dependent oxidation of oxalate to carbon dioxide in a reaction coupled with the formation of hydrogen peroxide. CsOxOx is the first bicupin enzyme identified that catalyzes this reaction. The multiple injection ITC method of measuring OxOx activity involves …
Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Ellen W. Moomaw
Isothermal Titration Calorimetry Uncovers Substrate Promiscuity Of Bicupin Oxalate Oxidase From Ceriporiopsis Subvermispora, Hassan Rana, Patricia Moussatche, Lis Souza Rocha, Ellen W. Moomaw
Ellen Moomaw
Isothermal titration calorimetry (ITC) may be used to determine the kinetic parameters of enzymecatalyzed reactions when neither products nor reactants are spectrophotometrically visible and when the reaction products are unknown. We report here the use of the multiple injection method of ITC to characterize the catalytic properties of oxalate oxidase (OxOx) from Ceriporiopsis subvermispora (CsOxOx), a manganese dependent enzyme that catalyzes the oxygen-dependent oxidation of oxalate to carbon dioxide in a reaction coupled with the formation of hydrogen peroxide. CsOxOx is the first bicupin enzyme identified that catalyzes this reaction. The multiple injection ITC method of measuring OxOx activity involves …
Qpcr Analysis Of Differential Gene Expression (Wet Lab), Raymond A. Enke
Qpcr Analysis Of Differential Gene Expression (Wet Lab), Raymond A. Enke
Ray Enke Ph.D.
- Analyze qPCR data to determine normalized gene expression for candidate genes identified from an RNA-Seq data set
- Set up additional or repeat experimental qPCR reactions
- Create a draft poster outlining the methods & data collected during the 6-week RNA-Seq analysis lab module
1st Strand Cdna Synthesis From Total Rna (Wet Lab), Raymond A. Enke
1st Strand Cdna Synthesis From Total Rna (Wet Lab), Raymond A. Enke
Ray Enke Ph.D.
Dissection & Rna Isolation From Embryonic Chicken Retina (Wet Lab), Raymond A. Enke
Dissection & Rna Isolation From Embryonic Chicken Retina (Wet Lab), Raymond A. Enke
Ray Enke Ph.D.
- Dissect retina & cornea from developing chicken embryos
- Extract total cellular RNA from tissues for downstream gene expression analysis
Rna Gel & Spectrophotometer Analysis (Wet Lab), Raymond A. Enke
Rna Gel & Spectrophotometer Analysis (Wet Lab), Raymond A. Enke
Ray Enke Ph.D.
- Determine quantity & purity of total RNA using a spectrophotometer
- Determine the quality of total RNA using native agarose gel electrophoresis (no formaldehyde required)
Bitter Taste Receptor Genotype/Phenotype Lab: A Modular Project Sequence For Lecture Or Lab, Raymond A. Enke
Bitter Taste Receptor Genotype/Phenotype Lab: A Modular Project Sequence For Lecture Or Lab, Raymond A. Enke
Ray Enke Ph.D.
Caspase-8 Scaffolding Function And Mlkl Regulate Nlrp3 Inflammasome Activation Downstream Of Tlr3, Seokwon Kang, Teresa Fernandes-Alnemri, Corey Rogers, Lindsey Mayes, Ying Wang, Christopher P. Dillon, Linda Roback, William Kaiser, Andrew Oberst, Junji Sagara, Katherine A. Fitzgerald, Douglas R. Green, Jianke Zhang, Edward S. Mocarski, Emad S. Alnemri
Caspase-8 Scaffolding Function And Mlkl Regulate Nlrp3 Inflammasome Activation Downstream Of Tlr3, Seokwon Kang, Teresa Fernandes-Alnemri, Corey Rogers, Lindsey Mayes, Ying Wang, Christopher P. Dillon, Linda Roback, William Kaiser, Andrew Oberst, Junji Sagara, Katherine A. Fitzgerald, Douglas R. Green, Jianke Zhang, Edward S. Mocarski, Emad S. Alnemri
Katherine A. Fitzgerald
TLR2 promotes NLRP3 inflammasome activation via an early MyD88-IRAK1-dependent pathway that provides a priming signal (signal 1) necessary for activation of the inflammasome by a second potassium-depleting signal (signal 2). Here we show that TLR3 binding to dsRNA promotes post-translational inflammasome activation through intermediate and late TRIF/RIPK1/FADD-dependent pathways. Both pathways require the scaffolding but not the catalytic function of caspase-8 or RIPK1. Only the late pathway requires kinase competent RIPK3 and MLKL function. Mechanistically, FADD/caspase-8 scaffolding function provides a post-translational signal 1 in the intermediate pathway, whereas in the late pathway it helps the oligomerization of RIPK3, which together with …
Mapping Transcriptome Profiles Of In Vitro Ipsc-Derived Cardiac Differentiation To In Utero Heart Development, Xing Li, Katherine A. Campbell, Sherri M. Biendarra, Andre Terzic, Timothy J. Nelson
Mapping Transcriptome Profiles Of In Vitro Ipsc-Derived Cardiac Differentiation To In Utero Heart Development, Xing Li, Katherine A. Campbell, Sherri M. Biendarra, Andre Terzic, Timothy J. Nelson
Katherine Campbell, PhD
No abstract provided.
Clinical Light Exposure, Photoreceptor Degeneration, And Ap-1 Activation: A Cell Death Or Cell Survival Signal In The Rhodopsin Mutant Retina?, Danian Gu, William Beltran, Zexiao Li, Gregory M. Acland, Gustavo D. Aguirre
Clinical Light Exposure, Photoreceptor Degeneration, And Ap-1 Activation: A Cell Death Or Cell Survival Signal In The Rhodopsin Mutant Retina?, Danian Gu, William Beltran, Zexiao Li, Gregory M. Acland, Gustavo D. Aguirre
Gustavo D. Aguirre, VMD, PhD
PURPOSE. The T4R RHO mutant dog retina shows retinal degeneration with exposures to light comparable to those used in clinical eye examinations of patients. To define the molecular mechanisms of the degeneration, AP-1 DNA-binding activity, composition, posttranslational modification of the protein complex, and modulation of ERK/MAPK signaling pathways were examined in light-exposed mutant retinas. METHODS. Dark-adapted retinas were exposed to short-duration light flashes from a retinal camera used clinically for retinal photography and were collected at different time points after exposure. Electrophoretic mobility shift assay (EMSA), supershift EMSA, Western blot analysis, and immunocytochemistry were used to examine AP-1 signaling. RESULTS. …
Bestrophin Gene Mutations Cause Canine Multifocal Retinopathy: A Novel Animal Model For Best Disease, Karina E. Guziewicz, Barbara Zangerl, Sarah J. Lindauer, Robert F. Mullins, Lynne S. Sandmeyer, Bruce H. Grahn, Edwin M. Stone, Gregory M. Acland, Gustavo D. Aguirre
Bestrophin Gene Mutations Cause Canine Multifocal Retinopathy: A Novel Animal Model For Best Disease, Karina E. Guziewicz, Barbara Zangerl, Sarah J. Lindauer, Robert F. Mullins, Lynne S. Sandmeyer, Bruce H. Grahn, Edwin M. Stone, Gregory M. Acland, Gustavo D. Aguirre
Gustavo D. Aguirre, VMD, PhD
PURPOSE. Canine multifocal retinopathy (cmr) is an autosomal recessive disorder of multiple dog breeds. The disease shares a number of clinical and pathologic similarities with Best macular dystrophy (BMD), and cmr is proposed as a new large animal model for Best disease. METHODS. cmr was characterized by ophthalmoscopy and histopathology and compared with BMD-affected patients. BEST1 (alias VMD2), the bestrophin gene causally associated with BMD, was evaluated in the dog. Canine ortholog cDNA sequence was cloned and verified using RPE/choroid 5′- and 3′-RACE. Expression of the canine gene transcripts and protein was analyzed by Northern and Western blotting and immunocytochemistry. …