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Articles 31 - 60 of 3069
Full-Text Articles in Medicine and Health Sciences
Effects Of Complete And Partial Loss Of The 24s-Hydroxycholesterol-Generating Enzyme, Hong-Jin Shu, Luke H Ziolkowski, Sofia V Salvatore, Ann M Benz, David F Wozniak, Carla M Yuede, Steven M Paul, Charles F Zorumski, Steven Mennerick
Effects Of Complete And Partial Loss Of The 24s-Hydroxycholesterol-Generating Enzyme, Hong-Jin Shu, Luke H Ziolkowski, Sofia V Salvatore, Ann M Benz, David F Wozniak, Carla M Yuede, Steven M Paul, Charles F Zorumski, Steven Mennerick
2020-Current year OA Pubs
Brain cholesterol metabolic products include neurosteroids and oxysterols, which play important roles in cellular physiology. In neurons, the cholesterol oxidation product, 24S-hydroxycholesterol (24S-HC), is a regulator of signaling and transcription. Here, we examined the behavioral effects of 24S-HC loss, using global and cell-selective genetic deletion of the synthetic enzyme CYP46A1. Mice that are globally deficient in CYP46A1 exhibited hypoactivity at young ages and unexpected increases in conditioned fear memory. Despite strong reductions in hippocampal 24S-HC in mice with selective loss of CYP46A1 in VGLUT1-positive cells, behavioral effects were not recapitulated in these conditional knockout mice. Global knockout produced strong, developmentally …
Multi-Molecular Hyperspectral Prm-Srs Microscopy, Wenxu Zhang, Yajuan Li, Anthony A Fung, Zhi Li, Hongje Jang, Honghao Zha, Xiaoping Chen, Fangyuan Gao, Jane Y Wu, Huaxin Sheng, Junjie Yao, Dorota Skowronska-Krawczyk, Sanjay Jain, Lingyan Shi
Multi-Molecular Hyperspectral Prm-Srs Microscopy, Wenxu Zhang, Yajuan Li, Anthony A Fung, Zhi Li, Hongje Jang, Honghao Zha, Xiaoping Chen, Fangyuan Gao, Jane Y Wu, Huaxin Sheng, Junjie Yao, Dorota Skowronska-Krawczyk, Sanjay Jain, Lingyan Shi
2020-Current year OA Pubs
Lipids play crucial roles in many biological processes. Mapping spatial distributions and examining the metabolic dynamics of different lipid subtypes in cells and tissues are critical to better understanding their roles in aging and diseases. Commonly used imaging methods (such as mass spectrometry-based, fluorescence labeling, conventional optical imaging) can disrupt the native environment of cells/tissues, have limited spatial or spectral resolution, or cannot distinguish different lipid subtypes. Here we present a hyperspectral imaging platform that integrates a Penalized Reference Matching algorithm with Stimulated Raman Scattering (PRM-SRS) microscopy. Using this platform, we visualize and identify high density lipoprotein particles in human …
Nrf2 Activation In Trp53;P16-Deficient Mice Drives Oral Squamous Cell Carcinoma, Samera H Hamad, Rani S Sellers, Nathan Wamsley, Paul Zolkind, Travis P Schrank, Michael B Major, Bernard E Weissman
Nrf2 Activation In Trp53;P16-Deficient Mice Drives Oral Squamous Cell Carcinoma, Samera H Hamad, Rani S Sellers, Nathan Wamsley, Paul Zolkind, Travis P Schrank, Michael B Major, Bernard E Weissman
2020-Current year OA Pubs
UNLABELLED: Aberrant activation of the NRF2/NFE2L2 transcription factor commonly occurs in head and neck squamous cell carcinomas (HNSCC). Mouse model studies have shown that NRF2 activation alone does not result in cancer. When combined with classic oncogenes and at the right dose, NRF2 activation promotes tumor initiation and progression. Here we deleted the tumor suppressor genes p16INK4A and p53 (referred to as CP mice), which are commonly lost in human HNSCC, in the presence of a constitutively active NRF2E79Q mutant (CPN mice). NRF2E79Q expression in CPN mice resulted in squamous cell hyperplasia or dysplasia with hyperkeratosis in the esophagus, oropharynx, …
Current Strategies For Increasing Knock-In Efficiency In Crispr/Cas9-Based Approaches, Andrés Felipe Leal, Angelica María Herreno-Pachón, Eliana Benincore-Flórez, Amali Karunathilaka, Shunji Tomatsu
Current Strategies For Increasing Knock-In Efficiency In Crispr/Cas9-Based Approaches, Andrés Felipe Leal, Angelica María Herreno-Pachón, Eliana Benincore-Flórez, Amali Karunathilaka, Shunji Tomatsu
Department of Pediatrics Faculty Papers
Since its discovery in 2012, the clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated protein 9 (Cas9) system has supposed a promising panorama for developing novel and highly precise genome editing-based gene therapy (GT) alternatives, leading to overcoming the challenges associated with classical GT. Classical GT aims to deliver transgenes to the cells via their random integration in the genome or episomal persistence into the nucleus through lentivirus (LV) or adeno-associated virus (AAV), respectively. Although high transgene expression efficiency is achieved by using either LV or AAV, their nature can result in severe side effects in humans. For instance, …
High Resolution Spatial Profiling Of Kidney Injury And Repair Using Rna Hybridization-Based In Situ Sequencing, Haojia Wu, Eryn E Dixon, Qiao Xuanyuan, Juanru Guo, Yasuhiro Yoshimura, Chitnis Debashish, Anezka Niesnerova, Hao Xu, Morgane Rouault, Benjamin D Humphreys
High Resolution Spatial Profiling Of Kidney Injury And Repair Using Rna Hybridization-Based In Situ Sequencing, Haojia Wu, Eryn E Dixon, Qiao Xuanyuan, Juanru Guo, Yasuhiro Yoshimura, Chitnis Debashish, Anezka Niesnerova, Hao Xu, Morgane Rouault, Benjamin D Humphreys
2020-Current year OA Pubs
Emerging spatially resolved transcriptomics technologies allow for the measurement of gene expression in situ at cellular resolution. We apply direct RNA hybridization-based in situ sequencing (dRNA HybISS, Cartana part of 10xGenomics) to compare male and female healthy mouse kidneys and the male kidney injury and repair timecourse. A pre-selected panel of 200 genes is used to identify cell state dynamics patterns during injury and repair. We develop a new computational pipeline, CellScopes, for the rapid analysis, multi-omic integration and visualization of spatially resolved transcriptomic datasets. The resulting dataset allows us to resolve 13 kidney cell types within distinct kidney niches, …
Androgen Exposure Impairs Neutrophil Maturation And Function Within The Infected Kidney, Teri N Hreha, Christina A Collins, Elisabeth B Cole, Rachel J Jin, David A Hunstad
Androgen Exposure Impairs Neutrophil Maturation And Function Within The Infected Kidney, Teri N Hreha, Christina A Collins, Elisabeth B Cole, Rachel J Jin, David A Hunstad
2020-Current year OA Pubs
Urinary tract infections (UTIs) in men are uncommon yet carry an increased risk for severe pyelonephritis and other complications. In models of
Secretory Leukocyte Protease Inhibitor Protects Against Severe Urinary Tract Infection In Mice, Anne L Rosen, Michael A Lint, Dayne H Voelker, Nicole M Gilbert, Christopher P Tomera, Jesús Santiago-Borges, Meghan A Wallace, Thomas J Hannan, Carey-Ann D Burnham, Scott J Hultgren, Andrew L Kau
Secretory Leukocyte Protease Inhibitor Protects Against Severe Urinary Tract Infection In Mice, Anne L Rosen, Michael A Lint, Dayne H Voelker, Nicole M Gilbert, Christopher P Tomera, Jesús Santiago-Borges, Meghan A Wallace, Thomas J Hannan, Carey-Ann D Burnham, Scott J Hultgren, Andrew L Kau
2020-Current year OA Pubs
Millions suffer from urinary tract infections (UTIs) worldwide every year with women accounting for the majority of cases. Uropathogenic
A General Computational Design Strategy For Stabilizing Viral Class I Fusion Proteins, Karen J Gonzalez, Jiachen Huang, Miria F Criado, Avik Banerjee, Stephen M Tompkins, Jarrod J Mousa, Eva-Maria Strauch
A General Computational Design Strategy For Stabilizing Viral Class I Fusion Proteins, Karen J Gonzalez, Jiachen Huang, Miria F Criado, Avik Banerjee, Stephen M Tompkins, Jarrod J Mousa, Eva-Maria Strauch
2020-Current year OA Pubs
Many pathogenic viruses rely on class I fusion proteins to fuse their viral membrane with the host cell membrane. To drive the fusion process, class I fusion proteins undergo an irreversible conformational change from a metastable prefusion state to an energetically more stable postfusion state. Mounting evidence underscores that antibodies targeting the prefusion conformation are the most potent, making it a compelling vaccine candidate. Here, we establish a computational design protocol that stabilizes the prefusion state while destabilizing the postfusion conformation. With this protocol, we stabilize the fusion proteins of the RSV, hMPV, and SARS-CoV-2 viruses, testing fewer than a …
Dynamic Changes In The Mouse Hepatic Lipidome Following Warm Ischemia Reperfusion Injury, Kim H H Liss, Muhammad Mousa, Shria Bucha, Andrew Lutkewitte, Jeremy Allegood, L Ashley Cowart, Brian N Finck
Dynamic Changes In The Mouse Hepatic Lipidome Following Warm Ischemia Reperfusion Injury, Kim H H Liss, Muhammad Mousa, Shria Bucha, Andrew Lutkewitte, Jeremy Allegood, L Ashley Cowart, Brian N Finck
2020-Current year OA Pubs
Liver failure secondary to metabolic dysfunction-associated steatotic liver disease (MASLD) has become the most common cause for liver transplantation in many parts of the world. Moreover, the prevalence of MASLD not only increases the demand for liver transplantation, but also limits the supply of suitable donor organs because steatosis predisposes grafts to ischemia-reperfusion injury (IRI). There are currently no pharmacological interventions to limit hepatic IRI because the mechanisms by which steatosis leads to increased injury are unclear. To identify potential novel mediators of IRI, we used liquid chromatography and mass spectrometry to assess temporal changes in the hepatic lipidome in …
Connexin43 In Mesenchymal Lineage Cells Regulates Body Adiposity And Energy Metabolism In Mice, Seung-Yon Lee, Francesca Fontana, Toshifumi Sugatani, Ignacio Portales Castillo, Giulia Leanza, Ariella Coler-Reilly, Roberto Civitelli
Connexin43 In Mesenchymal Lineage Cells Regulates Body Adiposity And Energy Metabolism In Mice, Seung-Yon Lee, Francesca Fontana, Toshifumi Sugatani, Ignacio Portales Castillo, Giulia Leanza, Ariella Coler-Reilly, Roberto Civitelli
2020-Current year OA Pubs
Connexin43 (Cx43) is the most abundant gap junction protein present in the mesenchymal lineage. In mature adipocytes, Cx43 mediates white adipose tissue (WAT) beiging in response to cold exposure and maintains the mitochondrial integrity of brown adipose tissue (BAT). We found that genetic deletion of Gja1 (Cx43 gene) in cells that give rise to chondro-osteogenic and adipogenic precursors driven by the Dermo1/Twist2 promoter led to lower body adiposity and partial protection against the weight gain and metabolic syndrome induced by a high-fat diet (HFD) in both sexes. These protective effects were related to increased locomotion, fuel utilization, energy expenditure, nonshivering …
Lysosome-Related Organelles Contain An Expansion Compartment That Mediates Delivery Of Zinc Transporters To Promote Homeostasis, Adelita D Mendoza, Nicholas Dietrich, Chieh-Hsiang Tan, Daniel Herrera, Jennysue Kasiah, Zachary Payne, Ciro Cubillas, Daniel L Schneider, Kerry Kornfeld
Lysosome-Related Organelles Contain An Expansion Compartment That Mediates Delivery Of Zinc Transporters To Promote Homeostasis, Adelita D Mendoza, Nicholas Dietrich, Chieh-Hsiang Tan, Daniel Herrera, Jennysue Kasiah, Zachary Payne, Ciro Cubillas, Daniel L Schneider, Kerry Kornfeld
2020-Current year OA Pubs
Zinc is an essential nutrient-it is stored during periods of excess to promote detoxification and released during periods of deficiency to sustain function. Lysosome-related organelles (LROs) are an evolutionarily conserved site of zinc storage, but mechanisms that control the directional zinc flow necessary for homeostasis are not well understood. In
Dna Hypomethylation Ameliorates Erosive Inflammatory Arthritis By Modulating Interferon Regulatory Factor-8, Gaurav Swarnkar, Nicholas P Semenkovich, Manoj Arra, Dorothy K Mims, Syeda Kanwal Naqvi, Timothy Peterson, Gabriel Mbalaviele, Chia-Lung Wu, Yousef Abu-Amer
Dna Hypomethylation Ameliorates Erosive Inflammatory Arthritis By Modulating Interferon Regulatory Factor-8, Gaurav Swarnkar, Nicholas P Semenkovich, Manoj Arra, Dorothy K Mims, Syeda Kanwal Naqvi, Timothy Peterson, Gabriel Mbalaviele, Chia-Lung Wu, Yousef Abu-Amer
2020-Current year OA Pubs
Epigenetic regulation plays a crucial role in the pathogenesis of autoimmune diseases such as inflammatory arthritis. DNA hypomethylating agents, such as decitabine (DAC), have been shown to dampen inflammation and restore immune homeostasis. In the present study, we demonstrate that DAC elicits potent anti-inflammatory effects and attenuates disease symptoms in several animal models of arthritis. Transcriptomic and epigenomic profiling show that DAC-mediated hypomethylation regulates a wide range of cell types in arthritis, altering the differentiation trajectories of anti-inflammatory macrophage populations, regulatory T cells, and tissue-protective synovial fibroblasts (SFs). Mechanistically, DAC-mediated demethylation of intragenic 5'-Cytosine phosphate Guanine-3' (CpG) islands of the …
Circuit-Based Intervention Corrects Excessive Dentate Gyrus Output In The Fragile X Mouse Model, Pan-Yue Deng, Ajeet Kumar, Valeria Cavalli, Vitaly A Klyachko
Circuit-Based Intervention Corrects Excessive Dentate Gyrus Output In The Fragile X Mouse Model, Pan-Yue Deng, Ajeet Kumar, Valeria Cavalli, Vitaly A Klyachko
2020-Current year OA Pubs
Abnormal cellular and circuit excitability is believed to drive many core phenotypes in fragile X syndrome (FXS). The dentate gyrus is a brain area performing critical computations essential for learning and memory. However, little is known about dentate circuit defects and their mechanisms in FXS. Understanding dentate circuit dysfunction in FXS has been complicated by the presence of two types of excitatory neurons, the granule cells and mossy cells. Here we report that loss of FMRP markedly decreased excitability of dentate mossy cells, a change opposite to all other known excitability defects in excitatory neurons in FXS. This mossy cell …
Srf-Deficient Astrocytes Provide Neuroprotection In Mouse Models Of Excitotoxicity And Neurodegeneration, Surya Chandra Rao Thumu, Monika Jain, Sumitha Soman, Soumen Das, Vijaya Verma, Arnab Nandi, David H Gutmann, Balaji Jayaprakash, Deepak Nair, James P Clement, Swananda Marathe, Narendrakumar Ramanan
Srf-Deficient Astrocytes Provide Neuroprotection In Mouse Models Of Excitotoxicity And Neurodegeneration, Surya Chandra Rao Thumu, Monika Jain, Sumitha Soman, Soumen Das, Vijaya Verma, Arnab Nandi, David H Gutmann, Balaji Jayaprakash, Deepak Nair, James P Clement, Swananda Marathe, Narendrakumar Ramanan
2020-Current year OA Pubs
Reactive astrogliosis is a common pathological hallmark of CNS injury, infection, and neurodegeneration, where reactive astrocytes can be protective or detrimental to normal brain functions. Currently, the mechanisms regulating neuroprotective astrocytes and the extent of neuroprotection are poorly understood. Here, we report that conditional deletion of serum response factor (SRF) in adult astrocytes causes reactive-like hypertrophic astrocytes throughout the mouse brain. These
Immunoglobulin Replacement Products Protect Against Sars-Cov-2 Infection In Vivo Despite Poor Neutralizing Activity, Ofer Zimmerman, Alexa Michelle Altman Doss, Baoling Ying, Chieh-Yu Liang, Samantha R. Mackin, Hannah G. Davis-Adams, Lucas J. Adams, Laura A. Vanblargan, Rita E. Chen, Suzanne M. Scheaffer, Pritesh Desai, Saravanan Raju, Tarisa L. Mantia, Caitlin C. O'Shaughnessy, Jennifer Marie Monroy, H. James Wedner, Christopher J. Rigell, Andrew L. Kau, Tiffany Biason Dy, Zhen Ren, Jackson S. Turner, Jane A. O'Halloran, Rachel M. Presti, Peggy L. Kendall, Daved H. Fremont, Ali H. Ellebedy, Michael S Diamond
Immunoglobulin Replacement Products Protect Against Sars-Cov-2 Infection In Vivo Despite Poor Neutralizing Activity, Ofer Zimmerman, Alexa Michelle Altman Doss, Baoling Ying, Chieh-Yu Liang, Samantha R. Mackin, Hannah G. Davis-Adams, Lucas J. Adams, Laura A. Vanblargan, Rita E. Chen, Suzanne M. Scheaffer, Pritesh Desai, Saravanan Raju, Tarisa L. Mantia, Caitlin C. O'Shaughnessy, Jennifer Marie Monroy, H. James Wedner, Christopher J. Rigell, Andrew L. Kau, Tiffany Biason Dy, Zhen Ren, Jackson S. Turner, Jane A. O'Halloran, Rachel M. Presti, Peggy L. Kendall, Daved H. Fremont, Ali H. Ellebedy, Michael S Diamond
2020-Current year OA Pubs
Immunoglobulin (IG) replacement products are used routinely in patients with immune deficiency and other immune dysregulation disorders who have poor responses to vaccination and require passive immunity conferred by commercial antibody products. The binding, neutralizing, and protective activity of intravenously administered IG against SARS-CoV-2 emerging variants remains unknown. Here, we tested 198 different IG products manufactured from December 2019 to August 2022. We show that prepandemic IG had no appreciable cross-reactivity or neutralizing activity against SARS-CoV-2. Anti-spike antibody titers and neutralizing activity against SARS-CoV-2 WA1/2020 D614G increased gradually after the pandemic started and reached levels comparable to vaccinated healthy donors …
Genomemuster Mouse Genetic Variation Service Enables Multitrait, Multipopulation Data Integration And Analysis, Robyn L Ball, Alexander S Hatoum, Arpana Agrawal, Et Al.
Genomemuster Mouse Genetic Variation Service Enables Multitrait, Multipopulation Data Integration And Analysis, Robyn L Ball, Alexander S Hatoum, Arpana Agrawal, Et Al.
2020-Current year OA Pubs
Hundreds of inbred mouse strains and intercross populations have been used to characterize the function of genetic variants that contribute to disease. Thousands of disease-relevant traits have been characterized in mice and made publicly available. New strains and populations including consomics, the collaborative cross, expanded BXD, and inbred wild-derived strains add to existing complex disease mouse models, mapping populations, and sensitized backgrounds for engineered mutations. The genome sequences of inbred strains, along with dense genotypes from others, enable integrated analysis of trait-variant associations across populations, but these analyses are hampered by the sparsity of genotypes available. Moreover, the data are …
A Cre-Dependent Reporter Mouse For Quantitative Real-Time Imaging Of Protein Kinase A Activity Dynamics, Elizabeth I Tilden, Aditi Maduskar, Anna Oldenborg, Bernardo L Sabatini, Yao Chen
A Cre-Dependent Reporter Mouse For Quantitative Real-Time Imaging Of Protein Kinase A Activity Dynamics, Elizabeth I Tilden, Aditi Maduskar, Anna Oldenborg, Bernardo L Sabatini, Yao Chen
2020-Current year OA Pubs
Intracellular signaling dynamics play a crucial role in cell function. Protein kinase A (PKA) is a key signaling molecule that has diverse functions, from regulating metabolism and brain activity to guiding development and cancer progression. We previously developed an optical reporter, FLIM-AKAR, that allows for quantitative imaging of PKA activity via fluorescence lifetime imaging microscopy and photometry. However, using viral infection or electroporation for the delivery of FLIM-AKAR is invasive and results in variable expression. Here, we developed a reporter mouse, FL-AK, which expresses FLIM-AKAR in a Cre-dependent manner from the ROSA26 locus. FL-AK provides robust and consistent expression of …
A Mouse Model To Distinguish Nlrp6-Mediated Inflammasome-Dependent And -Independent Functions, Runzhi Li, Yang Zan, Decai Wang, Xuequn Chen, Anmin Wang, Haoyuan Tan, Guorong Zhang, Siyuan Ding, Chen Shen, Hao Wu, Shu Zhu
A Mouse Model To Distinguish Nlrp6-Mediated Inflammasome-Dependent And -Independent Functions, Runzhi Li, Yang Zan, Decai Wang, Xuequn Chen, Anmin Wang, Haoyuan Tan, Guorong Zhang, Siyuan Ding, Chen Shen, Hao Wu, Shu Zhu
2020-Current year OA Pubs
The NOD-like receptor (NLR) family pyrin domain containing 6 (NLRP6) serves as a sensor for microbial dsRNA or lipoteichoic acid (LTA) in intestinal epithelial cells (IECs), and initiating multiple pathways including inflammasome pathway and type I interferon (IFN) pathway, or regulating nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) pathways. NLRP6 can exert its function in both inflammasome-dependent and inflammasome-independent manners. However, there is no tool to distinguish the contribution of individual NLRP6-mediated pathway to the physiology and pathology in vivo. Here, we validated that Arg39 and Trp50 residues in the pyrin domain (PYD) of murine NLRP6 are required for …
Aducanumab Anti-Amyloid Immunotherapy Induces Sustained Microglial And Immune Alterations, Mika P Cadiz, Katelin A Gibson, Kennedi T Todd, David G Nascari, Nashali Massa, Meredith T Lilley, Kimberly C Olney, Md Mamun Al-Amin, Hong Jiang, David M Holtzman, John D Fryer
Aducanumab Anti-Amyloid Immunotherapy Induces Sustained Microglial And Immune Alterations, Mika P Cadiz, Katelin A Gibson, Kennedi T Todd, David G Nascari, Nashali Massa, Meredith T Lilley, Kimberly C Olney, Md Mamun Al-Amin, Hong Jiang, David M Holtzman, John D Fryer
2020-Current year OA Pubs
Aducanumab, an anti-amyloid immunotherapy for Alzheimer's disease, efficiently reduces Aβ, though its plaque clearance mechanisms, long-term effects, and effects of discontinuation are not fully understood. We assessed the effect of aducanumab treatment and withdrawal on Aβ, neuritic dystrophy, astrocytes, and microglia in the APP/PS1 amyloid mouse model. We found that reductions in amyloid and neuritic dystrophy during acute treatment were accompanied by microglial and astrocytic activation, and microglial recruitment to plaques and adoption of an aducanumab-specific pro-phagocytic and pro-degradation transcriptomic signature, indicating a role for microglia in aducanumab-mediated Aβ clearance. Reductions in Aβ and dystrophy were sustained 15 but not …
Rapid And Accurate Remethylation Of Dna In Dnmt3a- Deficient Hematopoietic Cells With Restoration Of Dnmt3a Activity, Yang Li, Haley J Abel, Michelle Cai, Taylor A Lavalle, Tiankai Yin, Nichole M Helton, Amanda M Smith, Christopher A Miller, Timothy J Ley
Rapid And Accurate Remethylation Of Dna In Dnmt3a- Deficient Hematopoietic Cells With Restoration Of Dnmt3a Activity, Yang Li, Haley J Abel, Michelle Cai, Taylor A Lavalle, Tiankai Yin, Nichole M Helton, Amanda M Smith, Christopher A Miller, Timothy J Ley
2020-Current year OA Pubs
Here, we characterize the DNA methylation phenotypes of bone marrow cells from mice with hematopoietic deficiency of
A Comparative Biochemical And Pathological Evaluation Of Brain Samples From Knock-In Murine Models Of Gaucher Disease, Makaila L Furderer, Bahafta Berhe, Tiffany C Chen, Stephen Wincovitch, Xuntian Jiang, Nahid Tayebi, Ellen Sidransky, Tae-Un Han
A Comparative Biochemical And Pathological Evaluation Of Brain Samples From Knock-In Murine Models Of Gaucher Disease, Makaila L Furderer, Bahafta Berhe, Tiffany C Chen, Stephen Wincovitch, Xuntian Jiang, Nahid Tayebi, Ellen Sidransky, Tae-Un Han
2020-Current year OA Pubs
Gaucher disease (GD) is a lysosomal storage disorder stemming from biallelic mutations in
Pycallingcards: An Integrated Environment For Visualizing, Analyzing, And Interpreting Calling Cards Data, Juanru Guo, Wenjin Zhang, Xuhua Chen, Allen Yen, Lucy Chen, Christian A Shively, Daofeng Li, Ting Wang, Joseph D Dougherty, Robi D Mitra
Pycallingcards: An Integrated Environment For Visualizing, Analyzing, And Interpreting Calling Cards Data, Juanru Guo, Wenjin Zhang, Xuhua Chen, Allen Yen, Lucy Chen, Christian A Shively, Daofeng Li, Ting Wang, Joseph D Dougherty, Robi D Mitra
2020-Current year OA Pubs
MOTIVATION: Unraveling the transcriptional programs that control how cells divide, differentiate, and respond to their environments requires a precise understanding of transcription factors' (TFs) DNA-binding activities. Calling cards (CC) technology uses transposons to capture transient TF binding events at one instant in time and then read them out at a later time. This methodology can also be used to simultaneously measure TF binding and mRNA expression from single-cell CC and to record and integrate TF binding events across time in any cell type of interest without the need for purification. Despite these advantages, there has been a lack of dedicated …
Mucosal Boosting Enhances Vaccine Protection Against Sars-Cov-2 In Macaques, Katherine Mcmahan, Adrianus C M Boon, Et Al.
Mucosal Boosting Enhances Vaccine Protection Against Sars-Cov-2 In Macaques, Katherine Mcmahan, Adrianus C M Boon, Et Al.
2020-Current year OA Pubs
A limitation of current SARS-CoV-2 vaccines is that they provide minimal protection against infection with current Omicron subvariants
Multiomic Profiling Reveals Metabolic Alterations Mediating Aberrant Platelet Activity And Inflammation In Myeloproliferative Neoplasms, Fan He, Angelo Ba Laranjeira, Tim Kong, Shuyang Lin, Katrina J. Ashworth, Alice Liu, Nina M. Lasky, Daniel Ac Fisher, Maggie J. Cox, Mary C. Fulbright, Lilian Antunes-Heck, Layow Yu, Molly Brakhane, Bei Gao, Stephen M. Sykes, Angelo D'Alessandro, Jorge Di Paola, Stephen T. Oh
Multiomic Profiling Reveals Metabolic Alterations Mediating Aberrant Platelet Activity And Inflammation In Myeloproliferative Neoplasms, Fan He, Angelo Ba Laranjeira, Tim Kong, Shuyang Lin, Katrina J. Ashworth, Alice Liu, Nina M. Lasky, Daniel Ac Fisher, Maggie J. Cox, Mary C. Fulbright, Lilian Antunes-Heck, Layow Yu, Molly Brakhane, Bei Gao, Stephen M. Sykes, Angelo D'Alessandro, Jorge Di Paola, Stephen T. Oh
2020-Current year OA Pubs
Platelets from patients with myeloproliferative neoplasms (MPNs) exhibit a hyperreactive phenotype. Here, we found elevated P-selectin exposure and platelet-leukocyte aggregates indicating activation of platelets from essential thrombocythemia (ET) patients. Single-cell RNA-seq analysis of primary samples revealed significant enrichment of transcripts related to platelet activation, mTOR, and oxidative phosphorylation in ET patient platelets. These observations were validated via proteomic profiling. Platelet metabolomics revealed distinct metabolic phenotypes consisting of elevated ATP generation accompanied by increases in the levels of multiple intermediates of the tricarboxylic acid cycle, but lower α-ketoglutarate (α-KG) in MPN patients. Inhibition of PI3K/AKT/mTOR signaling significantly reduced metabolic responses and …
Mousevuer: Video Based Open-Source System For Laboratory Mouse Home-Cage Monitoring, Ghadi Salem, Niall Cope, Marcial Garmendia, Alex Pu, Abhishek Somenhalli, Jonathan Krynitsky, Noah Cubert, Thomas Jones, George Dold, Anthony Fletcher, Alexxai Kravitz, Thomas Pohida, John Dennis
Mousevuer: Video Based Open-Source System For Laboratory Mouse Home-Cage Monitoring, Ghadi Salem, Niall Cope, Marcial Garmendia, Alex Pu, Abhishek Somenhalli, Jonathan Krynitsky, Noah Cubert, Thomas Jones, George Dold, Anthony Fletcher, Alexxai Kravitz, Thomas Pohida, John Dennis
2020-Current year OA Pubs
Video monitoring of mice in the home-cage reveals behavior profiles without the disruptions caused by specialized test setups and makes it possible to quantify changes in behavior patterns continually over long time frames. Several commercial home-cage monitoring systems are available with varying costs and capabilities; however there are currently no open-source systems for home-cage monitoring. We present an open-source system for top-down video monitoring of research mice in a slightly modified home-cage. The system is designed for integration with Allentown NexGen ventilated racks and allows unobstructed view of up to three mice, but can also be operated outside the rack. …
Reaction Hijacking Inhibition Of Plasmodium Falciparum Asparagine Trna Synthetase, Stanley C Xie, Eva S Istvan, Daniel E Goldberg, Et Al.
Reaction Hijacking Inhibition Of Plasmodium Falciparum Asparagine Trna Synthetase, Stanley C Xie, Eva S Istvan, Daniel E Goldberg, Et Al.
2020-Current year OA Pubs
Malaria poses an enormous threat to human health. With ever increasing resistance to currently deployed drugs, breakthrough compounds with novel mechanisms of action are urgently needed. Here, we explore pyrimidine-based sulfonamides as a new low molecular weight inhibitor class with drug-like physical parameters and a synthetically accessible scaffold. We show that the exemplar, OSM-S-106, has potent activity against parasite cultures, low mammalian cell toxicity and low propensity for resistance development. In vitro evolution of resistance using a slow ramp-up approach pointed to the Plasmodium falciparum cytoplasmic asparaginyl-tRNA synthetase (PfAsnRS) as the target, consistent with our finding that OSM-S-106 inhibits protein …
Enhancing Antibody Responses By Multivalent Antigen Display On Thymus-Independent Dna Origami Scaffolds, Eike-Christian Wamhoff, James Brett Case, Shilpa Sanapala, Michael S Diamond, Et Al.
Enhancing Antibody Responses By Multivalent Antigen Display On Thymus-Independent Dna Origami Scaffolds, Eike-Christian Wamhoff, James Brett Case, Shilpa Sanapala, Michael S Diamond, Et Al.
2020-Current year OA Pubs
Protein-based virus-like particles (P-VLPs) are commonly used to spatially organize antigens and enhance humoral immunity through multivalent antigen display. However, P-VLPs are thymus-dependent antigens that are themselves immunogenic and can induce B cell responses that may neutralize the platform. Here, we investigate thymus-independent DNA origami as an alternative material for multivalent antigen display using the receptor binding domain (RBD) of the SARS-CoV-2 spike protein, the primary target of neutralizing antibody responses. Sequential immunization of mice with DNA-based VLPs (DNA-VLPs) elicits protective neutralizing antibodies to SARS-CoV-2 in a manner that depends on the valency of the antigen displayed and on T …
Tempo And Mode Of Gene Expression Evolution In The Brain Across Primates, Katherine Rickelton, Trisha M Zintel, Jason Pizzollo, Emily Miller, John J Ely, Mary Ann Raghanti, William D Hopkins, Patrick R Hof, Chet C Sherwood, Amy L Bauernfeind, Courtney C Babbitt
Tempo And Mode Of Gene Expression Evolution In The Brain Across Primates, Katherine Rickelton, Trisha M Zintel, Jason Pizzollo, Emily Miller, John J Ely, Mary Ann Raghanti, William D Hopkins, Patrick R Hof, Chet C Sherwood, Amy L Bauernfeind, Courtney C Babbitt
2020-Current year OA Pubs
Primate evolution has led to a remarkable diversity of behavioral specializations and pronounced brain size variation among species (Barton, 2012; DeCasien and Higham, 2019; Powell et al., 2017). Gene expression provides a promising opportunity for studying the molecular basis of brain evolution, but it has been explored in very few primate species to date (e.g. Khaitovich et al., 2005; Khrameeva et al., 2020; Ma et al., 2022; Somel et al., 2009). To understand the landscape of gene expression evolution across the primate lineage, we generated and analyzed RNA-seq data from four brain regions in an unprecedented eighteen species. Here, we …
Association Of Genetic Variation In Col11a1 With Adolescent Idiopathic Scoliosis, Hao Yu, Lilian Antunes, Christina A Gurnett, Et Al.
Association Of Genetic Variation In Col11a1 With Adolescent Idiopathic Scoliosis, Hao Yu, Lilian Antunes, Christina A Gurnett, Et Al.
2020-Current year OA Pubs
Adolescent idiopathic scoliosis (AIS) is a common and progressive spinal deformity in children that exhibits striking sexual dimorphism, with girls at more than fivefold greater risk of severe disease compared to boys. Despite its medical impact, the molecular mechanisms that drive AIS are largely unknown. We previously defined a female-specific AIS genetic risk locus in an enhancer near the
An Orally Available Compound Suppresses Glucagon Hypersecretion And Normalizes Hyperglycemia In Type 1 Diabetes, Farzad Asadi, Subhadra C. Gunawardana, Roland E. Dolle, David W. Piston
An Orally Available Compound Suppresses Glucagon Hypersecretion And Normalizes Hyperglycemia In Type 1 Diabetes, Farzad Asadi, Subhadra C. Gunawardana, Roland E. Dolle, David W. Piston
2020-Current year OA Pubs
Suppression of glucagon hypersecretion can normalize hyperglycemia during type 1 diabetes (T1D). Activating erythropoietin-producing human hepatocellular receptor type-A4 (EphA4) on α cells reduced glucagon hypersecretion from dispersed α cells and T1D islets from both human donor and mouse models. We synthesized a high-affinity small molecule agonist for the EphA4 receptor, WCDD301, which showed robust plasma and liver microsome metabolic stability in both mouse and human preparations. In islets and dispersed islet cells from nondiabetic and T1D human donors, WCDD301 reduced glucagon secretion comparable to the natural EphA4 ligand, Ephrin-A5. In diabetic NOD and streptozotocin-treated mice, once-daily oral administration of WCDD301 …