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Full-Text Articles in Microbiology

Reliable Rna-Seq Analysis From Ffpe Specimens As A Means To Accelerate Cancer-Related Health Disparities Research, Mitchell J Frederick, Dannelys Perez-Bello, Pedram Yadollahi, Patricia Castro, Alan Frederick, Andrew Frederick, Rashid A Osman, Fonma Essien, Imelda Yebra, Ashley Hamlin, Thomas J Ow, Heath D Skinner, Vlad C Sandulache Jan 2025

Reliable Rna-Seq Analysis From Ffpe Specimens As A Means To Accelerate Cancer-Related Health Disparities Research, Mitchell J Frederick, Dannelys Perez-Bello, Pedram Yadollahi, Patricia Castro, Alan Frederick, Andrew Frederick, Rashid A Osman, Fonma Essien, Imelda Yebra, Ashley Hamlin, Thomas J Ow, Heath D Skinner, Vlad C Sandulache

Faculty, Staff and Students Publications

Whole transcriptome sequencing (WTS/ RNA-Seq) is a ubiquitous tool for investigating cancer biology. RNA isolated from frozen sources limits possible studies for analysis of associations with phenotypes or clinical variables requiring long-term follow-up. Although good correlations are reported in RNA-Seq data from paired frozen and formalin fixed paraffin embedded (FFPE) samples, uncertainties regarding RNA quality, methods of extraction, and data reliability are hurdles to utilization of archival samples. We compared three different platforms for performing RNA-seq using archival FFPE oropharyngeal squamous carcinoma (OPSCC) specimens stored up to 20 years, as part of an investigation of transcriptional profiles related to health …


Relationships Of Personality Traits With The Taxonomic Composition Of The Gut Microbiome Among Psychiatric Inpatients, William Orme, Sandra L Grimm, Divya S N Vella, J Christopher Fowler, B Christopher Frueh, Benjamin L Weinstein, Joseph Petrosino, Cristian Coarfa, Alok Madan Jan 2025

Relationships Of Personality Traits With The Taxonomic Composition Of The Gut Microbiome Among Psychiatric Inpatients, William Orme, Sandra L Grimm, Divya S N Vella, J Christopher Fowler, B Christopher Frueh, Benjamin L Weinstein, Joseph Petrosino, Cristian Coarfa, Alok Madan

Faculty, Staff and Students Publications

Objective: Through the brain-gut-microbiome axis, myriad psychological functions that affect behavior share a dynamic, bidirectional relationship with the intestinal microbiome. Little is known about the relationship between personality-a stable construct that influences social- and health-related behaviors-and the bacterial ecosystem. The authors of this exploratory study examined the relationship between general and maladaptive personality traits and the composition of the gut microbiome.

Methods: In total, 105 psychiatric inpatients provided clinical data and fecal samples. Personality traits were measured with the five-factor model of personality, the Structured Clinical Interview for DSM-IV Axis II Personality Disorders, and the Personality Inventory for DSM-5; 16S …


Age-Related Variations In Hba1c Improvemecnts: Insights From A Telehealth-Supported Community-Based Intervention, Laura Porterfield, Xiaoying Yu, Amber B Amspoker, Craig A Johnston, Aanand D Naik, Salim S Virani, Christie M Ballantyne, Ashok Balasubramanyam, Elizabeth M Vaughan Jan 2025

Age-Related Variations In Hba1c Improvemecnts: Insights From A Telehealth-Supported Community-Based Intervention, Laura Porterfield, Xiaoying Yu, Amber B Amspoker, Craig A Johnston, Aanand D Naik, Salim S Virani, Christie M Ballantyne, Ashok Balasubramanyam, Elizabeth M Vaughan

Faculty, Staff and Students Publications

Background and objectives: We previously demonstrated that a telehealth-supported community health worker (CHW) intervention significantly improved clinical outcomes in diabetes care. However, the extent to which these benefits vary across different age groups remains unclear. This study evaluated the effectiveness of a CHW-led multidimensional diabetes intervention in reducing HbA1c across age groups.

Research design and methods: We conducted a retrospective analysis of 10 studies (n = 301) that focused on low-income Hispanic adults with or at risk for type 2 diabetes. The intervention included CHW-participant coaching via mobile Health (mHealth), monthly CHW-led group education, and bidirectional mHealth feedback among …


Oral Microbiome And Inflammatory Bowel Disease: New Understanding And Call To Action, Michael Saadeh, Sydney Donohue, Shaina Ailawadi, Gordon Hong, David A. Johnson Jan 2025

Oral Microbiome And Inflammatory Bowel Disease: New Understanding And Call To Action, Michael Saadeh, Sydney Donohue, Shaina Ailawadi, Gordon Hong, David A. Johnson

Department of Medicine Faculty Publications

The oral microbiome is the second largest microbial community in the human body after the gut microbiome. It includes an array of fungi, bacteria, amoebae, flagellates, archaea, and viruses, all of which are potential pathogens. This microbiome can act as a facilitator not only for protection but also for aggravation when dysbiosis occurs. Although conventional thought is this is primarily in terms of oral health issues, such as dental caries and gingival disease. The systemic effects of the oral microbiome however, are relevant to both gastrointestinal (GI) disease and non-GI disease. These systemic risks occur for several reasons, including upregulation …


Multi-Antigen Elephant Endotheliotropic Herpesvirus (Eehv) Mrna Vaccine Induces Humoral And Cell-Mediated Responses In Mice, Jessica R Watts, Jennifer L Spencer Clinton, Jeroen Pollet, Rongsheng Peng, Jie Tan, Paul D Ling Dec 2024

Multi-Antigen Elephant Endotheliotropic Herpesvirus (Eehv) Mrna Vaccine Induces Humoral And Cell-Mediated Responses In Mice, Jessica R Watts, Jennifer L Spencer Clinton, Jeroen Pollet, Rongsheng Peng, Jie Tan, Paul D Ling

Faculty, Staff and Students Publications

Background/Objectives: Elephant endotheliotropic herpesvirus (EEHV) causes lethal hemorrhagic disease (HD) in Asian and African elephants in human care and the wild. It is the leading cause of death for young Asian elephants in North American and European zoos despite sensitive diagnostic tests and improved treatments. Thus, there is a critical need to develop an effective vaccine to prevent severe illness and reduce mortality from EEHV-HD. We generated a multi-antigenic EEHV mRNA vaccine to address this need that encodes the EEHV1A-subtype glycoproteins gB, gH, gL, and gO. These conserved proteins are the entry machinery for several herpesviruses in the betaherpesvirus subfamily …


Large-Scale Crispr/Cas9 Deletions Within The Wfdc Gene Cluster Uncover Gene Functionality And Critical Roles In Mammalian Reproduction, Katarzyna Kent, Kaori Nozawa, Rachel Parkes, Laura Dean, Frey Daniel, Mei Leng, Antrix Jain, Anna Malovannaya, Martin M Matzuk, Thomas X Garcia Dec 2024

Large-Scale Crispr/Cas9 Deletions Within The Wfdc Gene Cluster Uncover Gene Functionality And Critical Roles In Mammalian Reproduction, Katarzyna Kent, Kaori Nozawa, Rachel Parkes, Laura Dean, Frey Daniel, Mei Leng, Antrix Jain, Anna Malovannaya, Martin M Matzuk, Thomas X Garcia

Faculty, Staff and Students Publications

Despite 96 million years of evolution separating humans and rodents, 11 closely related reproductive tract-specific genes in humans—SPINT3, WFDC6, EPPIN, WFDC8, WFDC9, WFDC10A, WFDC11, WFDC10B, WFDC13, SPINT4, and WFDC3—and the 13 reproductive tract-specific orthologous genes in mice, form highly conserved syntenic gene clusters indicative of conserved, combined critical functions. Further, despite significant progress toward a nonhormonal male contraceptive targeting the protein encoded by one of these genes, epididymal peptidase inhibitor (EPPIN), and associations found between mutations in EPPIN and an increased risk of male infertility, neither EPPIN nor …


The Rise, Fall, And Resurgence Of Phage Therapy For Urinary Tract Infection, Jacob J Zulk, Kathryn A Patras, Anthony W Maresso Dec 2024

The Rise, Fall, And Resurgence Of Phage Therapy For Urinary Tract Infection, Jacob J Zulk, Kathryn A Patras, Anthony W Maresso

Faculty, Staff and Students Publications

In the face of rising antimicrobial resistance, bacteriophage therapy, also known as phage therapy, is seeing a resurgence as a potential treatment for bacterial infections including urinary tract infection (UTI). Primarily caused by uropathogenic Escherichia coli, the 400 million UTI cases annually are major global healthcare burdens and a primary cause of antibiotic prescriptions in the outpatient setting. Phage therapy has several potential advantages over antibiotics including the ability to disrupt bacterial biofilms and synergize with antimicrobial treatments with minimal side effects or impacts on the microbiota. Phage therapy for UTI treatment has shown generally favorable results in recent …


Chemogenetic Neuronal Silencing Decouples C-Jun Activation From Cell Death In The Temporal Cortex, Caleb A Wood, Preethi Somasundaram, Jacob M Dundee, Melissa A Rudy, Trent A Watkins, Joanna L Jankowsky Dec 2024

Chemogenetic Neuronal Silencing Decouples C-Jun Activation From Cell Death In The Temporal Cortex, Caleb A Wood, Preethi Somasundaram, Jacob M Dundee, Melissa A Rudy, Trent A Watkins, Joanna L Jankowsky

Faculty, Staff and Students Publications

Initial symptoms of neurodegenerative diseases are often defined by the loss of the most vulnerable neural populations specific to each disorder. In the early stages of Alzheimer's disease, vulnerable circuits in the temporal lobe exhibit diminished activity prior to overt degeneration. It remains unclear whether these functional changes contribute to regional vulnerability or are simply a consequence of pathology. We previously found that entorhinal neurons in the temporal cortex undergo cell death following transient suppression of electrical activity, suggesting a causal role for activity disruption in neurodegeneration. Here we demonstrate that electrical arrest of this circuit stimulates the injury-response transcription …


Enhancement Of Zika Virus Infection By West Nile And Dengue Virus Antibody Positive Cord-Blood Samples From Mothers In El Paso-Texas, Jeanette Orbegozo Dec 2024

Enhancement Of Zika Virus Infection By West Nile And Dengue Virus Antibody Positive Cord-Blood Samples From Mothers In El Paso-Texas, Jeanette Orbegozo

Open Access Theses & Dissertations

The recent Zika virus (ZIKV) outbreak and its association with microcephaly cases and other neurological syndromes are important public health concerns. A phenomenon known as antibody-dependent enhancement (ADE) involves preexisting flavivirus antibodies to a specific flavivirus that enhances the severity of a second infection with a different flavivirus. Since ZIKV is related to flaviviruses like West Nile virus (WNV) and dengue virus (DENV), prior exposure to these viruses could elicit cross-reactive antibodies that may enhance a subsequent ZIKV infection. Therefore, this study aimed to determine if WNV and DENV antibodies from cord blood enhanced ZIKV infection in vitro. Initially, a …


Implementing The Methodology To Generate Diagnostic And Therapeutic Antibodies, Andrea Mariana Carlin Dec 2024

Implementing The Methodology To Generate Diagnostic And Therapeutic Antibodies, Andrea Mariana Carlin

Open Access Theses & Dissertations

This research aimed to establish the methodology for developing monoclonal antibodies at The University of Texas at El Paso. Monoclonal antibodies are indispensable across multiple fields, including diagnostics, therapeutics, and biotechnology, yet there is a shortage of commercially available antibodies targeting specific proteins or possessing specialized characteristics. To address this gap, three models were selected: a peptide derived from the intracellular protein Schlafen 8 and two cell surface protein receptors: mouse vascular endothelial growth factor receptor 2 (VEGFR2) and human melanocortin receptor 4 (MC4R). These proteins present unique challenges in antibody generation, including issues of accessibility, expression, and specificity.

Throughout …


Infant-Derived Human Nasal Organoids Exhibit Relatively Increased Susceptibility, Epithelial Responses, And Cytotoxicity During Rsv Infection, Gina M Aloisio, Divya Nagaraj, Ashley M Murray, Emily M Schultz, Trevor Mcbride, Letisha Aideyan, Erin G Nicholson, David Henke, Laura Ferlic-Stark, Anubama Rajan, Amal Kambal, Hannah L Johnson, Elina Mosa, Fabio Stossi, Sarah E Blutt, Pedro A Piedra, Vasanthi Avadhanula Dec 2024

Infant-Derived Human Nasal Organoids Exhibit Relatively Increased Susceptibility, Epithelial Responses, And Cytotoxicity During Rsv Infection, Gina M Aloisio, Divya Nagaraj, Ashley M Murray, Emily M Schultz, Trevor Mcbride, Letisha Aideyan, Erin G Nicholson, David Henke, Laura Ferlic-Stark, Anubama Rajan, Amal Kambal, Hannah L Johnson, Elina Mosa, Fabio Stossi, Sarah E Blutt, Pedro A Piedra, Vasanthi Avadhanula

Faculty, Staff and Students Publications

Background: Respiratory syncytial virus (RSV) causes significant morbidity and mortality, especially in young children. Why RSV infection in children is more severe compared to healthy adults is not fully understood.

Methods: We used ex-vivo human nasal organoid platforms from infants and adults to investigate the underlying mechanism of this disease disparity at the initial site of RSV replication, the nasal epithelium.

Results: Infant-derived human nasal organoid-air liquid interface (HNO-ALIs) lines were more susceptible to early RSV replication. Moreover, infant-derived HNO-ALIs elicited a statistically significant greater overall cytokine response, enhanced mucous production, and greater cellular damage compared to their adult counterparts. …


Bst2 Facilitates Activation Of Hematopoietic Stem Cells Through Erk Signaling, Marcus A Florez, Apoorva Thatavarty, Duy T Le, Holly A Hill, Youngjae Jeong, Brian M Ho, Pawel Kus, Trisha K Wathan, Bailee N Kain, Shixia Huang, Dongsu Park, Katherine Y King Dec 2024

Bst2 Facilitates Activation Of Hematopoietic Stem Cells Through Erk Signaling, Marcus A Florez, Apoorva Thatavarty, Duy T Le, Holly A Hill, Youngjae Jeong, Brian M Ho, Pawel Kus, Trisha K Wathan, Bailee N Kain, Shixia Huang, Dongsu Park, Katherine Y King

Faculty, Staff and Students Publications

The proinflammatory cytokine interferon-gamma (IFNγ) is upregulated in a variety of infections and contributes to bone marrow failure through hematopoietic stem cell (HSC) activation and subsequent exhaustion. The cell surface protein, bone marrow stromal antigen 2 (BST2), is a key mediator of this process, as it is induced upon interferon stimulation and required for interferon-dependent HSC activation. To identify the mechanism by which BST2 promotes interferon-dependent HSC activation, we evaluated its role in niche localization, immune cell function, lipid raft formation, and intracellular signaling. Our studies indicated that knock out (KO) of BST2 in a murine model does not disrupt …


Host Dna Depletion On Frozen Human Respiratory Samples Enables Successful Metagenomic Sequencing For Microbiome Studies, Minsik Kim, Raymond C Parrish, Michael J Tisza, Viral S Shah, Thi Tran, Matthew Ross, Juwan Cormier, Aribah Baig, Ching-Ying Huang, Laura Brenner, Isabel Neuringer, Katrine Whiteson, J Kirk Harris, Amy D Willis, Peggy S Lai Nov 2024

Host Dna Depletion On Frozen Human Respiratory Samples Enables Successful Metagenomic Sequencing For Microbiome Studies, Minsik Kim, Raymond C Parrish, Michael J Tisza, Viral S Shah, Thi Tran, Matthew Ross, Juwan Cormier, Aribah Baig, Ching-Ying Huang, Laura Brenner, Isabel Neuringer, Katrine Whiteson, J Kirk Harris, Amy D Willis, Peggy S Lai

Faculty, Staff and Students Publications

Most respiratory microbiome studies use amplicon sequencing due to high host DNA. Metagenomics sequencing offers finer taxonomic resolution, phage assessment, and functional characterization. We evaluated five host DNA depletion methods on frozen nasal swabs from healthy adults, sputum from people with cystic fibrosis (pwCF), and bronchoalveolar lavage (BAL) from critically ill patients. Median sequencing depth was 76.4 million reads per sample. Untreated nasal, sputum, and BAL had 94.1%, 99.2%, and 99.7% host reads, respectively. Host depletion effects varied by sample type, generally increasing microbial reads, species and functional richness; this was mediated by higher effective sequencing depth. Rarefaction curves showed …


Activation Of A Gpcr, Orl1 Receptor: A Novel Therapy To Prevent Heart Failure Progression, Saliha S Pathan, Aarthi Pugazenthi, Beverly R E A Dixon, Theodore G Wensel, Todd K Rosengart, Megumi Mathison Nov 2024

Activation Of A Gpcr, Orl1 Receptor: A Novel Therapy To Prevent Heart Failure Progression, Saliha S Pathan, Aarthi Pugazenthi, Beverly R E A Dixon, Theodore G Wensel, Todd K Rosengart, Megumi Mathison

Faculty, Staff and Students Publications

The number of ischemic heart failure (HF) patients is growing dramatically worldwide. However, there are at present no preventive treatments for HF. Our previous study showed that Gata4 overexpression improved cardiac function after myocardial infarction in rat hearts. We also found that Gata4 overexpression significantly increased the expression of a Pnoc gene, an endogenous ligand for the cell membrane receptor ORL1. We hypothesized that the activation of the ORL1 receptor would suppress HF in a rat ischemic heart model. Adult Sprague Dawley rats (8 weeks old, six males and six females) underwent left anterior descending coronary artery ligation. Three weeks …


Gene Discovery From Microbial Gene Libraries I: Protection Against Reactive Oxygen Species-Driven Dna Damage, John C Taylor, Carmen Gu Liu, James D Chang, Brianna E Thompson, Anthony W Maresso Nov 2024

Gene Discovery From Microbial Gene Libraries I: Protection Against Reactive Oxygen Species-Driven Dna Damage, John C Taylor, Carmen Gu Liu, James D Chang, Brianna E Thompson, Anthony W Maresso

Faculty, Staff and Students Publications

Reactive oxygen species (ROS) pose a lethal risk for all life forms by causing damage to cell processes, genome-wide DNA damage-driving mutation, replicative instability, and death. Thus, the development of mechanisms to resist or repair ROS-induced DNA damage is critical for the reliable replication of nucleic acids. DNA repair and protection mechanisms have been discovered in all forms of life. However, the vast array of microbes that may harbor novel repair or protection mechanisms, especially bacterial viruses, have not been adequately assessed. Here, we screened a microbial gene library composed primarily of phage open reading frames (ORFs) to uncover elements …


Enterococcus Faecium: Evolution, Adaptation, Pathogenesis And Emerging Therapeutics, Yahan Wei, Dennise Palacios Araya, Kelli L. Palmer Nov 2024

Enterococcus Faecium: Evolution, Adaptation, Pathogenesis And Emerging Therapeutics, Yahan Wei, Dennise Palacios Araya, Kelli L. Palmer

School of Podiatric Medicine Publications

The opportunistic pathogen Enterococcus faecium colonizes humans and a wide range of animals, endures numerous stresses, resists antibiotic treatment and stubbornly persists in clinical environments. The widespread application of antibiotics in hospitals and agriculture has contributed to the emergence of vancomycin-resistant E.faecium, which causes many hospital-acquired infections. In this Review, we explore recent discoveries about the evolutionary history, the environmental adaptation and the colonization and dissemination mechanisms of E.faecium and vancomycin-resistant E.faecium. These studies provide critical insights necessary for developing novel preventive and therapeutic approaches against vancomycin-resistant E.faecium and also reveal the intricate interrelationships …


Bcl-Xl Is Translocated To The Nucleus Via Ctbp2 To Epigenetically Promote Metastasis, Tiantian Zhang, Sha Li, Yingcai Adrian Tan, Xiang Chen, Cheryl Zhang, Zhengming Chen, Bikash Mishra, Joseph Hyungjoon Na, Soyoung Choi, Sandra J Shin, Priyadarshan Damle, Kranthi Kumar Chougoni, Steven R Grossman, Dunrui Wang, Xuejun Jiang, Yi Li, Erika Hissong, Yao-Tseng Chen, Jenny Z Xiang, Yi-Chieh Nancy Du Nov 2024

Bcl-Xl Is Translocated To The Nucleus Via Ctbp2 To Epigenetically Promote Metastasis, Tiantian Zhang, Sha Li, Yingcai Adrian Tan, Xiang Chen, Cheryl Zhang, Zhengming Chen, Bikash Mishra, Joseph Hyungjoon Na, Soyoung Choi, Sandra J Shin, Priyadarshan Damle, Kranthi Kumar Chougoni, Steven R Grossman, Dunrui Wang, Xuejun Jiang, Yi Li, Erika Hissong, Yao-Tseng Chen, Jenny Z Xiang, Yi-Chieh Nancy Du

Faculty, Staff and Students Publications

Nuclear Bcl-xL is found to promote cancer metastasis independently of its mitochondria-based anti-apoptotic activity. How Bcl-xL is translocated into the nucleus and how nuclear Bcl-xL regulates histone H3 trimethyl Lys4 (H3K4me3) modification have yet to be understood. Here, we report that C-terminal Binding Protein 2 (CtBP2) binds to Bcl-xL via its N-terminus and translocates Bcl-xL into the nucleus. Knockdown of CtBP2 by shRNA decreases the nuclear portion of Bcl-xL and reverses Bcl-xL-induced invasion and metastasis in mouse models. Furthermore, knockout of CtBP2 not only reduces the nuclear portion of Bcl-xL but also suppresses Bcl-xL transcription. The binding between Bcl-xL and …


Factors Associated With Head And Neck Cancer Postoperative Radiotherapy Delays: A Systematic Review And Meta-Analysis, Kelsey A Duckett, Mohamed Faisal Kassir, Shaun A Nguyen, Emily A Brennan, Bhisham S Chera, Katherine R Sterba, Chanita Hughes Halbert, Elizabeth G Hill, Jessica Mccay, Sidharth V Puram, Ryan S Jackson, Vlad C Sandulache, Russel Kahmke, Nosayaba Osazuwa-Peters, Salma Ramadan, Brian Nussenbaum, Anthony J Alberg, Evan M Graboyes Nov 2024

Factors Associated With Head And Neck Cancer Postoperative Radiotherapy Delays: A Systematic Review And Meta-Analysis, Kelsey A Duckett, Mohamed Faisal Kassir, Shaun A Nguyen, Emily A Brennan, Bhisham S Chera, Katherine R Sterba, Chanita Hughes Halbert, Elizabeth G Hill, Jessica Mccay, Sidharth V Puram, Ryan S Jackson, Vlad C Sandulache, Russel Kahmke, Nosayaba Osazuwa-Peters, Salma Ramadan, Brian Nussenbaum, Anthony J Alberg, Evan M Graboyes

Faculty, Staff and Students Publications

Objective: Initiating postoperative radiotherapy (PORT) within 6 weeks of surgery for head and neck squamous cell carcinoma (HNSCC) is included in the National Comprehensive Cancer Network Clincal Practice Guidelines and is a Commission on Cancer quality metric. Factors associated with delays in starting PORT have not been systematically described nor synthesized.

Data sources: PubMed, Scopus, and CINAHL.

Review methods: We included studies describing demographic characteristics, clinical factors, or social determinants of health associated with PORT delay (>6 weeks) in patients with HNSCC treated in the United States after 2003. Meta-analysis of odds ratios (ORs) was performed on nonoverlapping datasets. …


Transcriptomic And Epigenomic Signatures Distinguish High- And Low-Risk Endotypes For Liver Tumor Development, Sandra L Grimm, Tia Talley, Rahul K Jangid, Amrit Koirala, Micah B Castillo, Preethi H Gunaratne, Cristian Coarfa, Cheryl L Walker Nov 2024

Transcriptomic And Epigenomic Signatures Distinguish High- And Low-Risk Endotypes For Liver Tumor Development, Sandra L Grimm, Tia Talley, Rahul K Jangid, Amrit Koirala, Micah B Castillo, Preethi H Gunaratne, Cristian Coarfa, Cheryl L Walker

Faculty, Staff and Students Publications

The epigenome is a target for environmental exposures and a potential determinant of inter-individual differences in response. In genetically identical C57Bl/6 mice exposed from gestation to weaning to the endocrine-disrupting chemical (EDC) tributyltin (TBT), hepatic tumor development later in life varied across multiple cohorts over time and depending on sex and diet. In one cohort where approximately half of TBT-exposed male mice developed liver tumors at 10 months (Katz et al. Hepatic tumor formation in adult mice developmentally exposed to organotin, Environmental Health Perspectives, 128 (1), 17010, 2020), transcriptomic (RNA-seq) and epigenomic (ChIP-seq) profiling was performed on blood and liver …


A Cross-Systems Primer For Synthetic Microbial Communities, Elijah C Mehlferber, Gontran Arnault, Bishnu Joshi, Laila P Partida-Martinez, Kathryn A Patras, Marie Simonin, Britt Koskella Nov 2024

A Cross-Systems Primer For Synthetic Microbial Communities, Elijah C Mehlferber, Gontran Arnault, Bishnu Joshi, Laila P Partida-Martinez, Kathryn A Patras, Marie Simonin, Britt Koskella

Faculty, Staff and Students Publications

The design and use of synthetic communities, or SynComs, is one of the most promising strategies for disentangling the complex interactions within microbial communities, and between these communities and their hosts. Compared to natural communities, these simplified consortia provide the opportunity to study ecological interactions at tractable scales, as well as facilitating reproducibility and fostering interdisciplinary science. However, the effective implementation of the SynCom approach requires several important considerations regarding the development and application of these model systems. There are also emerging ethical considerations when both designing and deploying SynComs in clinical, agricultural or environmental settings. Here we outline current …


Solid Tumour-Induced Systemic Immunosuppression Involves Dichotomous Myeloid-B Cell Interactions, Xiaoxin Hao, Yichao Shen, Jun Liu, Angela Alexander, Ling Wu, Zhan Xu, Liqun Yu, Yang Gao, Fengshuo Liu, Hilda L Chan, Che-Hsing Li, Yunfeng Ding, Weijie Zhang, David G Edwards, Nan Chen, Azadeh Nasrazadani, Naoto T Ueno, Bora Lim, Xiang H-F Zhang Nov 2024

Solid Tumour-Induced Systemic Immunosuppression Involves Dichotomous Myeloid-B Cell Interactions, Xiaoxin Hao, Yichao Shen, Jun Liu, Angela Alexander, Ling Wu, Zhan Xu, Liqun Yu, Yang Gao, Fengshuo Liu, Hilda L Chan, Che-Hsing Li, Yunfeng Ding, Weijie Zhang, David G Edwards, Nan Chen, Azadeh Nasrazadani, Naoto T Ueno, Bora Lim, Xiang H-F Zhang

Faculty, Staff and Students Publications

Solid tumours induce systemic immunosuppression that involves myeloid and T cells. B cell-related mechanisms remain relatively understudied. Here we discover two distinct patterns of tumour-induced B cell abnormality (TiBA; TiBA-1 and TiBA-2), both associated with abnormal myelopoiesis in the bone marrow. TiBA-1 probably results from the niche competition between pre-progenitor-B cells and myeloid progenitors, leading to a global reduction in downstream B cells. TiBA-2 is characterized by systemic accumulation of a unique early B cell population, driven by interaction with excessive neutrophils. Importantly, TiBA-2-associated early B cells foster the systemic accumulation of exhaustion-like T cells. Myeloid and B cells from …


Construction And Characterization Of Dna Libraries From Cultured Phages And Environmental Viromes, Carmen Gu Liu, Brianna E Thompson, James D Chang, Lorna Min, Anthony W Maresso Oct 2024

Construction And Characterization Of Dna Libraries From Cultured Phages And Environmental Viromes, Carmen Gu Liu, Brianna E Thompson, James D Chang, Lorna Min, Anthony W Maresso

Faculty, Staff and Students Publications

Despite many efforts to understand and leverage the functional potential of environmental viromes, most bacteriophage genes are largely uncharacterized. To explore novel biology from uncultivated microbes like phages, metagenomics has emerged as a powerful tool to directly mine new genes without the need to culture the diverse microbiota and the viruses within. When a pure computational approach cannot infer gene function, it may be necessary to create a DNA library from environmental genomic DNA, followed by the screening of that library for a particular function. However, these screens are often initiated without a metagenomic analysis of the completed DNA library …


Sall4 And Gata4 Induce Cardiac Fibroblast Transition Towards A Partially Multipotent State With Cardiogenic Potential, Hong Gao, Saliha Pathan, Beverly R E A Dixon, Aarthi Pugazenthi, Megumi Mathison, Tamer M A Mohamed, Todd K Rosengart, Jianchang Yang Oct 2024

Sall4 And Gata4 Induce Cardiac Fibroblast Transition Towards A Partially Multipotent State With Cardiogenic Potential, Hong Gao, Saliha Pathan, Beverly R E A Dixon, Aarthi Pugazenthi, Megumi Mathison, Tamer M A Mohamed, Todd K Rosengart, Jianchang Yang

Faculty, Staff and Students Publications

Cardiac cellular fate transition holds remarkable promise for the treatment of ischemic heart disease. We report that overexpressing two transcription factors, Sall4 and Gata4, which play distinct and overlapping roles in both pluripotent stem cell reprogramming and embryonic heart development, induces a fraction of stem-like cells in rodent cardiac fibroblasts that exhibit unlimited ex vivo expandability with clonogenicity. Transcriptomic and phenotypic analyses reveal that around 32 ± 6.4% of the expanding cells express Nkx2.5, while 13 ± 3.6% express Oct4. Activated signaling pathways like PI3K/Akt, Hippo, Wnt, and multiple epigenetic modification enzymes are also detected. Under suitable conditions, these cells …


The Absence Of Cxcl10 Activity Does Not Affect The Capability Of Cd8+ T Cells To Migrate And Eliminate The Tissue Cysts Of Toxoplasma Gondii From The Brains Of Chronically Infected Mice, Rajesh Mani, Yasuhiro Suzuki Oct 2024

The Absence Of Cxcl10 Activity Does Not Affect The Capability Of Cd8+ T Cells To Migrate And Eliminate The Tissue Cysts Of Toxoplasma Gondii From The Brains Of Chronically Infected Mice, Rajesh Mani, Yasuhiro Suzuki

Markey Cancer Center Faculty Publications

Toxoplasma gondii forms tissue cysts in neurons and astrocytes in the brain to establish chronic infection, and astrocytes express the CXCL10 chemokine in chronically infected mice. Since chemokines mediate the migration of T cells to attack their targets, and since CXCL10 plays key roles in T cell-mediated control of the proliferation of tachyzoites (the acute stage form) of T. gondii during the acute stage of infection, we examined whether CXCL10 is involved in recruiting anti-cyst CD8+ cytotoxic T cells to eliminate the cysts in their brains. We employed adoptive transfer of CD8+ immune T cells to infected, T cell-deficient SCID …


Corrigendum: Sars-Cov-2 Seroprevalence In Pregnant Women In Kilifi, Kenya From March 2020 To March 2022, Angela Koech, Geoffrey Omuse, Joseph Mutunga, Moses Mukhanya, Onesmus Wanje, Grace Mwashigadi, Geoffrey Katana, Rachel Craik, Alex Mugo, Marleen Temmerman Oct 2024

Corrigendum: Sars-Cov-2 Seroprevalence In Pregnant Women In Kilifi, Kenya From March 2020 To March 2022, Angela Koech, Geoffrey Omuse, Joseph Mutunga, Moses Mukhanya, Onesmus Wanje, Grace Mwashigadi, Geoffrey Katana, Rachel Craik, Alex Mugo, Marleen Temmerman

Pathology, East Africa

Background: Seroprevalence studies are an alternative approach to estimating the extent of transmission of SARS-CoV-2 and the evolution of the pandemic in different geographical settings. We aimed to determine the SARS-CoV-2 seroprevalence from March 2020 to March 2022 in a rural and urban setting in Kilifi County, Kenya.

Methods: We obtained representative random samples of stored serum from a pregnancy cohort study for the period March 2020 to March 2022 and tested for antibodies against the spike protein using a qualitative SARS-CoV-2 ELISA kit (Wantai, total antibodies). All positive samples were retested for anti-SARS-CoV-2 anti-nucleocapsid antibodies (Euroimmun, ELISA kits, NCP, …


Influenza C Virus In Us Children With Acute Respiratory Infection 2016–2019, Bethany K Sederdahl, Geoffrey A Weinberg, Angela P Campbell, Rangaraj Selvarangan, Jennifer E Schuster, Joana Y Lively, Samantha M Olson, Julie A Boom, Pedro A Piedra, Natasha B Halasa, Laura Stewart, Peter G Szilagyi, G K Balasubramani, Theresa Sax, Judith M Martin, Robert W Hickey, Marian G Michaels, John V Williams, New Vaccine Surveillance Network Oct 2024

Influenza C Virus In Us Children With Acute Respiratory Infection 2016–2019, Bethany K Sederdahl, Geoffrey A Weinberg, Angela P Campbell, Rangaraj Selvarangan, Jennifer E Schuster, Joana Y Lively, Samantha M Olson, Julie A Boom, Pedro A Piedra, Natasha B Halasa, Laura Stewart, Peter G Szilagyi, G K Balasubramani, Theresa Sax, Judith M Martin, Robert W Hickey, Marian G Michaels, John V Williams, New Vaccine Surveillance Network

Faculty, Staff and Students Publications

Influenza C virus (ICV) is an orthomyxovirus related to influenza A and B, yet due to few commercial assays, epidemiologic studies may underestimate incidence of ICV infection and disease. We describe the epidemiology and characteristics of ICV within the New Vaccine Surveillance Network (NVSN), a Centers for Disease Control and Prevention (CDC)-led network that conducts population-based surveillance for pediatric acute respiratory illness (ARI). Nasal or/combined throat swabs were collected from emergency department (ED) or inpatient ARI cases, or healthy controls, between 12/05/2016-10/31/2019 and tested by molecular assays for ICV and other respiratory viruses. Parent surveys and chart review were used …


Rotavirus Vaccine Effectiveness Against Severe Acute Gastroenteritis: 2009-2022, Alpha Oumar Diallo, Mary E Wikswo, Iddrisu Sulemana, Leila C Sahni, Julie A Boom, Sasirekha Ramani, Rangaraj Selvarangan, Mary E Moffatt, Christopher J Harrison, Natasha Halasa, James Chappell, Laura Stewart, Mary Allen Staat, Elizabeth Schlaudecker, Christina Quigley, Eileen J Klein, Janet A Englund, Danielle M Zerr, Geoffrey A Weinberg, Peter G Szilagyi, Christina Albertin, Samantha H Johnston, John V Williams, Marian G Michaels, Robert W Hickey, Aaron T Curns, Michelle Honeywood, Slavica Mijatovic-Rustempasic, Mathew D Esona, Michael D Bowen, Umesh D Parashar, Rashi Gautam, Sara A Mirza, Jacqueline E Tate Oct 2024

Rotavirus Vaccine Effectiveness Against Severe Acute Gastroenteritis: 2009-2022, Alpha Oumar Diallo, Mary E Wikswo, Iddrisu Sulemana, Leila C Sahni, Julie A Boom, Sasirekha Ramani, Rangaraj Selvarangan, Mary E Moffatt, Christopher J Harrison, Natasha Halasa, James Chappell, Laura Stewart, Mary Allen Staat, Elizabeth Schlaudecker, Christina Quigley, Eileen J Klein, Janet A Englund, Danielle M Zerr, Geoffrey A Weinberg, Peter G Szilagyi, Christina Albertin, Samantha H Johnston, John V Williams, Marian G Michaels, Robert W Hickey, Aaron T Curns, Michelle Honeywood, Slavica Mijatovic-Rustempasic, Mathew D Esona, Michael D Bowen, Umesh D Parashar, Rashi Gautam, Sara A Mirza, Jacqueline E Tate

Faculty, Staff and Students Publications

Background: Rotavirus was the leading cause of acute gastroenteritis among US children until vaccine introduction in 2006, after which, substantial declines in severe rotavirus disease occurred. We evaluated rotavirus vaccine effectiveness (VE) over 13 years (2009-2022).

Methods: We analyzed data from the New Vaccine Surveillance Network using a test-negative case-control design to estimate rotavirus VE against laboratory-confirmed rotavirus infections among children seeking care for acute gastroenteritis (≥3 diarrhea or ≥1 vomiting episodes within 24 hours) in the emergency department (ED) or hospital. Case-patients and control-patients were children whose stool specimens tested rotavirus positive or negative, respectively, by enzyme immunoassay or …


Linkage Between Fuz And Gpr161 Genes Regulates Sonic Hedgehog Signaling During Mouse Neural Tube Development, Sung-Eun Kim, Hyun-Yi Kim, Bogdan J Wlodarczyk, Richard H Finnell Oct 2024

Linkage Between Fuz And Gpr161 Genes Regulates Sonic Hedgehog Signaling During Mouse Neural Tube Development, Sung-Eun Kim, Hyun-Yi Kim, Bogdan J Wlodarczyk, Richard H Finnell

Faculty, Staff and Students Publications

Sonic hedgehog (Shh) signaling regulates embryonic morphogenesis utilizing the primary cilium, the cell's antenna, which acts as a signaling hub. Fuz, an effector of planar cell polarity signaling, regulates Shh signaling by facilitating cilia formation, and the G protein-coupled receptor 161 (Gpr161) is a negative regulator of Shh signaling. The range of phenotypic malformations observed in mice bearing mutations in either of the genes encoding these proteins is similar; however, their functional relationship has not been previously explored. This study identified the genetic and biochemical linkage between Fuz and Gpr161 in mouse neural tube development. Fuz was found to be …


Perineuronal Nets’ Role In Metabolism, Nan Zhang, Beite Song, Peng Bai, Li Du, Lulu Chen, Yong Xu, Tianshu Zeng Oct 2024

Perineuronal Nets’ Role In Metabolism, Nan Zhang, Beite Song, Peng Bai, Li Du, Lulu Chen, Yong Xu, Tianshu Zeng

Faculty, Staff and Students Publications

Perineuronal nets (PNNs), specialized extracellular matrix (ECM) structures that envelop neurons, have recently been recognized as key players in the regulation of metabolism. This review explores the growing body of knowledge concerning PNNs and their role in metabolic control, drawing insights from recent research and relevant studies. The pivotal role of PNNs in the context of energy balance and whole body blood glucose is examined. This review also highlights novel findings, including the effects of astroglia, microglia, sex and gonadal hormones, nutritional regulation, circadian rhythms, and age on PNNs dynamics. These findings illuminate the complex and multifaceted role of PNNs …


Sequencing-Based Detection Of Avian Influenza A(H5n1) Virus In Wastewater In Ten Cities, Michael J Tisza, Blake M Hanson, Justin R Clark, Li Wang, Katelyn Payne, Matthew C Ross, Kristina D Mena, Anna Gitter, Sara J Javornik Cregeen, Juwan Cormier, Vasanthi Avadhanula, Austen Terwilliger, John Balliew, Fuqing Wu, Janelle Rios, Jennifer Deegan, Pedro A Piedra, Joseph F Petrosino, Eric Boerwinkle, Anthony W Maresso Sep 2024

Sequencing-Based Detection Of Avian Influenza A(H5n1) Virus In Wastewater In Ten Cities, Michael J Tisza, Blake M Hanson, Justin R Clark, Li Wang, Katelyn Payne, Matthew C Ross, Kristina D Mena, Anna Gitter, Sara J Javornik Cregeen, Juwan Cormier, Vasanthi Avadhanula, Austen Terwilliger, John Balliew, Fuqing Wu, Janelle Rios, Jennifer Deegan, Pedro A Piedra, Joseph F Petrosino, Eric Boerwinkle, Anthony W Maresso

Faculty, Staff and Students Publications

No abstract provided.