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Characterization Of Murine Breast Cancer Cell Lines For Anti-Cancer Vaccine, Haven N. Frazier 2017 University of Arkansas, Fayetteville

Characterization Of Murine Breast Cancer Cell Lines For Anti-Cancer Vaccine, Haven N. Frazier

Biological Sciences Undergraduate Honors Theses

Breast cancer is the most commonly diagnosed cancer in women and the second leading cause of cancer death among women in the United States (1). While treatments involving radiation and chemotherapy currently exist, disease must be detected early in order for the treatments to be somewhat effective, and there is no effective treatment after metastasis occurs (2). Additionally, current therapies do not mitigate tumor immunosuppression. Decreasing the tumor-associated immunosuppressive conditions while activating antitumor immunity could prevent recurrence and metastasis, possibly leading to an effective treatment for cancer (3). Tumor cell vaccines could possibly address this issue and have become a ...


Lysine Residues Of Interferon Regulatory Factor 7 Affect The Replication And Transcription Activatormediated Lytic Replication Of Kaposi’S Sarcomaassociated Herpesvirus/Human Herpesvirus 8, Tianzheng Zhang, Ying Wang, Li Zhang, Bin Liu, Jinhui Xie, Charles Wood, Jinzhong Wang 2017 Nankai University

Lysine Residues Of Interferon Regulatory Factor 7 Affect The Replication And Transcription Activatormediated Lytic Replication Of Kaposi’S Sarcomaassociated Herpesvirus/Human Herpesvirus 8, Tianzheng Zhang, Ying Wang, Li Zhang, Bin Liu, Jinhui Xie, Charles Wood, Jinzhong Wang

Virology Papers

Kaposi’s sarcoma-associated herpesvirus (KSHV) infection goes through latent and lytic phases, which are controlled by the viral replication and transcription activator (RTA). Upon KSHV infection, the host responds by suppressing RTA-activated lytic gene expression through interferon regulatory factor 7 (IRF-7), a key regulator of host innate immune response. Lysine residues are potential sites for post-translational modification of IRF-7, and were suggested to be critical for its activity. In this study, we analysed the 15 lysine residues for their effects on IRF-7 function by site-directed mutagenesis. We found that some mutations affect the ability of IRF-7 to activate interferon (IFN ...


Creation Of An Immunodeficient Hla-Transgenic Mouse (Humamice) And Functional Validation Of Human Immunity After Transfer Of Hla-Matched Human Cells, Yang Zeng, Bingrun Liu, Marie-Therese Rubio, Xinyue Wang, David M. Ojcius, Ruoping Tang, Antoine Durrbach, Zhitao Ru, Yusen Zhou, Yu-Chun Lone 2017 Beijing Institute of Microbiology and Epidemiology

Creation Of An Immunodeficient Hla-Transgenic Mouse (Humamice) And Functional Validation Of Human Immunity After Transfer Of Hla-Matched Human Cells, Yang Zeng, Bingrun Liu, Marie-Therese Rubio, Xinyue Wang, David M. Ojcius, Ruoping Tang, Antoine Durrbach, Zhitao Ru, Yusen Zhou, Yu-Chun Lone

Dugoni School of Dentistry Faculty Articles

Research on human immunology has been hindered by the lack of optimal small animal models, given that the protective immune responses of human and non-human species show significant differences. However, due to ethical constraints[1] and the high cost of clinical trials, it is urgent to improve the current animal models that can mimic faithfully human physiology, particularly the human immune system (HIS). HIS mice had been generated recently by engrafting human hematopoietic stem cells (hHSCs) or human peripheral mononuclear cells (hPBMCs) into highly immuno-deficient mice such as NSG, NOG or NRG mice. However, a major experimental drawback for studies ...


Dynamic Transcriptomes Identify Biogenic Amines And Insect-Like Hormonal Regulation For Mediating Reproduction In Schistosoma Japonicum., Jipeng Wang, Ying Yu, Haimo Shen, Tao Qing, Yuanting Zheng, Qing Li, Xiaojin Mo, Shuqi Wang, Nana Li, Riyi Chai, Bin Xu, Mu Liu, Paul J Brindley, Donald P McManus, Zheng Feng, Leming Shi, Wei Hu 2017 George Washington University

Dynamic Transcriptomes Identify Biogenic Amines And Insect-Like Hormonal Regulation For Mediating Reproduction In Schistosoma Japonicum., Jipeng Wang, Ying Yu, Haimo Shen, Tao Qing, Yuanting Zheng, Qing Li, Xiaojin Mo, Shuqi Wang, Nana Li, Riyi Chai, Bin Xu, Mu Liu, Paul J Brindley, Donald P Mcmanus, Zheng Feng, Leming Shi, Wei Hu

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Eggs produced by the mature female parasite are responsible for the pathogenesis and transmission of schistosomiasis. Female schistosomes rely on a unique male-induced strategy to accomplish reproductive development, a process that is incompletely understood. Here we map detailed transcriptomic profiles of male and female Schistosoma japonicum across eight time points throughout the sexual developmental process from pairing to maturation. The dynamic gene expression pattern data reveal clear sex-related characteristics, indicative of an unambiguous functional division between males and females during their interplay. Cluster analysis, in situ hybridization and RNAi assays indicate that males likely use biogenic amine neurotransmitters through the ...


The Final (Oral Ebola) Vaccine Trial On Captive Chimpanzees?, Peter D. Walsh, Drishya Kurup, Dana L. Hasselschwert, Christoph Wirblich, Jason E. Goetzmann, Matthias J. Schnell 2017 University of Cambridge

The Final (Oral Ebola) Vaccine Trial On Captive Chimpanzees?, Peter D. Walsh, Drishya Kurup, Dana L. Hasselschwert, Christoph Wirblich, Jason E. Goetzmann, Matthias J. Schnell

Department of Microbiology and Immunology Faculty Papers

Could new oral vaccine technologies protect endangered wildlife against a rising tide of infectious disease? We used captive chimpanzees to test oral delivery of a rabies virus (RABV) vectored vaccine against Ebola virus (EBOV), a major threat to wild chimpanzees and gorillas. EBOV GP and RABV GP-specific antibody titers increased exponentially during the trial, with rates of increase for six orally vaccinated chimpanzees very similar to four intramuscularly vaccinated controls. Chimpanzee sera also showed robust neutralizing activity against RABV and pseudo-typed EBOV. Vaccination did not induce serious health complications. Blood chemistry, hematologic, and body mass correlates of psychological stress suggested ...


The Role Of Estradiol Metabolism In Urogenital Schistosomiasis-Induced Bladder Cancer, Nuno Vale, Maria Gouveia, Gabriel Rinaldi, Julio Santos, Lucio Lara Santos, Paul J. Brindley, Jose Correia da Costa 2017 George Washington University

The Role Of Estradiol Metabolism In Urogenital Schistosomiasis-Induced Bladder Cancer, Nuno Vale, Maria Gouveia, Gabriel Rinaldi, Julio Santos, Lucio Lara Santos, Paul J. Brindley, Jose Correia Da Costa

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Urogenital schistosomiasis is a neglected tropical disease that can lead to bladder cancer. How urogenital schistosomiasis induces carcinogenesis remains unclear, although there is evidence that the human blood fluke Schistosoma haematobium, the infectious agent of urogenital schistosomiasis, releases estradiol-like metabolites. These kind of compounds have been implicated in other cancers. Aiming for enhanced understanding of the pathogenesis of the urogenital schistosomiasisinduced bladder cancer, here we review, interpret, and discuss findings of estradiol-like metabolites detected in both the parasite and in the human urine during urogenital schistosomiasis. Moreover, we predict pathways and enzymes that are involved in the production of these ...


Elevated Prevalence Of Helicobacter Species And Virulence Factors In Opisthorchiasis And Associated Hepatobiliary Disease., Raksawan Deenonpoe, Eimorn Mairiang, Pisaln Mairiang, Chawalit Pairojkul, Yaovalux Chamgramol, Gabriel Rinaldi, Alex Loukas, Paul J. Brindley, Banchob Sripa 2017 George Washington University

Elevated Prevalence Of Helicobacter Species And Virulence Factors In Opisthorchiasis And Associated Hepatobiliary Disease., Raksawan Deenonpoe, Eimorn Mairiang, Pisaln Mairiang, Chawalit Pairojkul, Yaovalux Chamgramol, Gabriel Rinaldi, Alex Loukas, Paul J. Brindley, Banchob Sripa

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Recent reports suggest that Opisthorchis viverrini serves as a reservoir of Helicobacter and implicate Helicobacter in pathogenesis of opisthorchiasis-associated cholangiocarcinoma (CCA). Here, 553 age-sex matched cases and controls, 293 and 260 positive and negative for liver fluke O. viverrini eggs, of residents in Northeastern Thailand were investigated for associations among infection with liver fluke, Helicobacter and hepatobiliary fibrosis. The prevalence of H. pylori infection was higher in O. viverrini-infected than uninfected participants. H. pylori bacterial load correlated positively with intensity of O. viverrini infection, and participants with opisthorchiasis exhibited higher frequency of virulent cagA-positive H. pylori than those free of ...


Advances In Neglected Tropical Disease Vaccines: Developing Relative Potency And Functional Assays For The Na-Gst-1/Alhydrogel Hookworm Vaccine., Jill B. Brelsford, Jordan L Plieskatt, Anna Yakovleva, Amar Jariwala, Brian P Keegan, Jin Peng, Pengjun Xia, Guangzhao Li, Doreen Campbell, Maria Victoria Periago, Rodrigo Correa-Oliveira, Maria Elena Bottazzi, Peter J. Hotez, David Diemert, Jeffrey M. Bethony 2017 George Washington University

Advances In Neglected Tropical Disease Vaccines: Developing Relative Potency And Functional Assays For The Na-Gst-1/Alhydrogel Hookworm Vaccine., Jill B. Brelsford, Jordan L Plieskatt, Anna Yakovleva, Amar Jariwala, Brian P Keegan, Jin Peng, Pengjun Xia, Guangzhao Li, Doreen Campbell, Maria Victoria Periago, Rodrigo Correa-Oliveira, Maria Elena Bottazzi, Peter J. Hotez, David Diemert, Jeffrey M. Bethony

Microbiology, Immunology, and Tropical Medicine Faculty Publications

A new generation of vaccines for the neglected tropical diseases (NTDs) have now advanced into clinical development, with the Na-GST-1/Alhydrogel Hookworm Vaccine already being tested in Phase 1 studies in healthy adults. The current manuscript focuses on the often overlooked critical aspects of NTD vaccine product development, more specifically, vaccine stability testing programs. A key measure of vaccine stability testing is "relative potency" or the immunogenicity of the vaccine during storage. As with most NTD vaccines, the Na-GST-1/Alhydrogel Hookworm Vaccine was not developed by attenuation or inactivation of the pathogen (Necator americanus), so conventional methods for measuring relative ...


Parasite Infection, Carcinogenesis And Human Malignancy., Hoang van Tong, Paul J. Brindley, Christian G Meyer, Thirumalaisamy P Velavan 2017 George Washington University

Parasite Infection, Carcinogenesis And Human Malignancy., Hoang Van Tong, Paul J. Brindley, Christian G Meyer, Thirumalaisamy P Velavan

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Cancer may be induced by many environmental and physiological conditions. Infections with viruses, bacteria and parasites have been recognized for years to be associated with human carcinogenicity. Here we review current concepts of carcinogenicity and its associations with parasitic infections. The helminth diseases schistosomiasis, opisthorchiasis, and clonorchiasis are highly carcinogenic while the protozoan Trypanosoma cruzi, the causing agent of Chagas disease, has a dual role in the development of cancer, including both carcinogenic and anticancer properties. Although malaria per se does not appear to be causative in carcinogenesis, it is strongly associated with the occurrence of endemic Burkitt lymphoma in ...


Yeast Help Identify Cytopathic Factors Of Zika Virus, Michael I. Bukrinsky 2017 George Washington University

Yeast Help Identify Cytopathic Factors Of Zika Virus, Michael I. Bukrinsky

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Accumulating evidence implicates Zika virus (ZIKV) in pathogenesis of microcephaly in newborns and Guillain-Barré syndrome in adults. However, it remains unclear which viral proteins are responsible for these effects and what are the underlying mechanisms of their pathogenic activity. A recent paper by Drs. Zhao and Gallo, and their colleagues at University of Maryland in Baltimore used fission yeast for genome-wide analysis of ZIKV proteins. They demonstrated cytopathogenic activity for seven ZIKV proteins, anaC, C, prM, M, E, NS2B and NS4A. This activity was shown to be dependent on oxidative stress, and for NS4A they demonstrated involvement of the TOR ...


T Cell Migration From Inflamed Skin To Draining Lymph Nodes Requires Intralymphatic Crawling Supported By Icam-1/Lfa-1 Interactions., Alvaro Teijeira, Morgan C. Hunter, Erica Russo, Steven T Proulx, Thomas Frei, Gudrun F. Debes, Marc Coles, Ignacio Melero, Michael Detmar, Ana Rouzaut, Cornelia Halin 2017 Institute of Pharmaceutical Sciences; Center for Applied Medical Research

T Cell Migration From Inflamed Skin To Draining Lymph Nodes Requires Intralymphatic Crawling Supported By Icam-1/Lfa-1 Interactions., Alvaro Teijeira, Morgan C. Hunter, Erica Russo, Steven T Proulx, Thomas Frei, Gudrun F. Debes, Marc Coles, Ignacio Melero, Michael Detmar, Ana Rouzaut, Cornelia Halin

Department of Microbiology and Immunology Faculty Papers

T cells are the most abundant cell type found in afferent lymph, but their migration through lymphatic vessels (LVs) remains poorly understood. Performing intravital microscopy in the murine skin, we imaged T cell migration through afferent LVs in vivo. T cells entered into and actively migrated within lymphatic capillaries but were passively transported in contractile collecting vessels. Intralymphatic T cell number and motility were increased during contact-hypersensitivity-induced inflammation and dependent on ICAM-1/LFA-1 interactions. In vitro, blockade of endothelial cell-expressed ICAM-1 reduced T cell adhesion, crawling, and transmigration across lymphatic endothelium and decreased T cell advancement from capillaries into lymphatic ...


A Comparison Of The Quality Of Informed Consent For Clinical Trials Of An Experimental Hookworm Vaccine Conducted In Developed And Developing Countries., David J. Diemert, Lucas Lobato, Ashley Styczynski, Maria Zumer, Amanda Soares, Maria Flávia Gazzinelli 2017 George Washington University

A Comparison Of The Quality Of Informed Consent For Clinical Trials Of An Experimental Hookworm Vaccine Conducted In Developed And Developing Countries., David J. Diemert, Lucas Lobato, Ashley Styczynski, Maria Zumer, Amanda Soares, Maria Flávia Gazzinelli

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Informed consent is one of the principal ethical requirements of conducting clinical research, regardless of the study setting. Breaches in the quality of the informed consent process are frequently described in reference to clinical trials conducted in developing countries, due to low levels of formal education, a lack of familiarity with biomedical research, and limited access to health services in these countries. However, few studies have directly compared the quality of the informed consent process in developed and developing countries using the same tool and in similar clinical trials. This study was conducted to compare the quality of the informed ...


Isolation, Culture And Characterization Of Hirsutella Sinensis Mycelium From Caterpillar Fungus Fruiting Body, Yun-Fei Komi, Jian-Ching Liau, Chien-Sheng Lee, Chen-Yaw Chiu, Jan Martel, Chuan-Sheng Lin, Shan-Fu Tseng, David M. Ojcius, Chia-Chen Lu, Hsin-Chih Lai, John Ding-E. Young 2017 Chang Gung Biotechnology Corporation

Isolation, Culture And Characterization Of Hirsutella Sinensis Mycelium From Caterpillar Fungus Fruiting Body, Yun-Fei Komi, Jian-Ching Liau, Chien-Sheng Lee, Chen-Yaw Chiu, Jan Martel, Chuan-Sheng Lin, Shan-Fu Tseng, David M. Ojcius, Chia-Chen Lu, Hsin-Chih Lai, John Ding-E. Young

Dugoni School of Dentistry Faculty Articles

The caterpillar fungus Ophiocordyceps sinensis (previously called Cordyceps sinensis) has been used for centuries in Asia as a tonic to improve health and longevity. Recent studies show that O. sinensis produces a wide range of biological effects on cells, laboratory animals and humans, including anti-fatigue, anti-infection, anti-inflammatory, antioxidant, and anti-tumor activities. In view of the rarity of O. sinensis fruiting bodies in nature, cultivation of its anamorph mycelium represents a useful alternative for large-scale production. However, O. sinensis fruiting bodies harvested in nature harbor several fungal contaminants, a phenomenon that led to the isolation and characterization of a large number ...


Identification Of Candidate Infection Genes From The Model Entomopathogenic Nematode Heterorhabditis Bacteriophora., Jonathan Vadnal, Ramesh Ratnappan, Melissa Keaney, Eric Kenney, Ioannis Eleftherianos, Damien O'Halloran, John M. Hawdon 2017 George Washington University

Identification Of Candidate Infection Genes From The Model Entomopathogenic Nematode Heterorhabditis Bacteriophora., Jonathan Vadnal, Ramesh Ratnappan, Melissa Keaney, Eric Kenney, Ioannis Eleftherianos, Damien O'Halloran, John M. Hawdon

Microbiology, Immunology, and Tropical Medicine Faculty Publications

BACKGROUND: Despite important progress in the field of innate immunity, our understanding of host immune responses to parasitic nematode infections lags behind that of responses to microbes. A limiting factor has been the obligate requirement for a vertebrate host which has hindered investigation of the parasitic nematode infective process. The nematode parasite Heterorhabditis bacteriophora offers great potential as a model to genetically dissect the process of infection. With its mutualistic Photorhabdus luminescens bacteria, H. bacteriophora invades multiple species of insects, which it kills and exploits as a food source for the development of several nematode generations. The ability to culture ...


Reactivation Of Hiv-1 Proviruses In Immune-Compromised Mice Engrafted With Human Voa-Negative Cd4+ T Cells, Zhe Yuan, Guobin Kang, Wuxun Lu, Qingsheng Li 2017 University of Nebraska-Lincoln

Reactivation Of Hiv-1 Proviruses In Immune-Compromised Mice Engrafted With Human Voa-Negative Cd4+ T Cells, Zhe Yuan, Guobin Kang, Wuxun Lu, Qingsheng Li

Virology Papers

Background: HIV-1 infection remains incurable on antiretroviral therapy (ART) due to virus latency. To date, enhanced co-culture assays, including viral outgrowth assays (VOA), are commonly used to measure HIV-1 latent reservoirs and evaluate latency-reversing agents (LRAs). However, VOA can only reactivate a small fraction of intact proviruses.

Methods: To explore the utility of NOD scid gamma (NSG) mice as an in vivo model to reactivate HIV-1 proviruses from VOA-negative CD4+ T cells, resting CD4+ T cells from an HIV-1 latently infected individual were isolated and the human CD4+ T cells corresponding to VOA-positive and VOA-negative CD4+ T cells were engrafted ...


Distinct Transcriptome Profiles Of Gag-Specific Cd8+ T Cells Temporally Correlated With The Protection Elicited By Sivδnef Live Attenuated Vaccine, Wuxun Lu, Yanmin Wu, Fangrui Ma, R. Paul Johnson, Qingsheng Li 2017 University of Nebraska - Lincoln

Distinct Transcriptome Profiles Of Gag-Specific Cd8+ T Cells Temporally Correlated With The Protection Elicited By Sivδnef Live Attenuated Vaccine, Wuxun Lu, Yanmin Wu, Fangrui Ma, R. Paul Johnson, Qingsheng Li

Virology Papers

The live attenuated vaccine (LAV) SIVmac239Δnef (SIVΔnef) confers the best protection among all the vaccine modalities tested in rhesus macaque model of HIV-1 infection. This vaccine has a unique feature of time-dependent protection: macaques are not protected at 3±5 weeks post vaccination (WPV), whereas immune protection emerges between 15 and 20 WPV. Although the exact mechanisms of the time-dependent protection remain incompletely understood, studies suggested that both cellular and humoral immunities contribute to this time-dependent protection. To further elucidate the mechanisms of protection induced by SIVΔnef, we longitudinally compared the global gene expression profiles of SIV Gag-CM9+ CD8+ (Gag-specific ...


Micrornas Modulate Pathogenesis Resulting From Chlamydial Infection In Mice, Laxmi Yeruva, S. Pouncey, Michael R. Eledge, Sudeepa Bhattacharya, Chunqiao Luo, Erin W. Weatherford, David M. Ojcius, Roger G. Rank 2017 University of Arkansas for Medical Sciences

Micrornas Modulate Pathogenesis Resulting From Chlamydial Infection In Mice, Laxmi Yeruva, S. Pouncey, Michael R. Eledge, Sudeepa Bhattacharya, Chunqiao Luo, Erin W. Weatherford, David M. Ojcius, Roger G. Rank

Dugoni School of Dentistry Faculty Articles

Not all women infected with chlamydiae develop upper genital tract disease, but the reason(s) for this remains undefined. Host genetics and hormonal changes associated with the menstrual cycle are possible explanations for variable infection outcomes. It is also possible that disease severity depends on the virulence of the chlamydial inoculum. It is likely that the inoculum contains multiple genetic variants, differing in virulence. If the virulent variants dominate, then the individual is more likely to develop severe disease. Based on our previous studies, we hypothesized that the relative degree of virulence of a chlamydial population dictates the microRNA (miRNA ...


A Fashi Lymphoproliferative Phenotype Reveals Non-Apoptotic Fas Signalling In Htlv-1-Associated Neuroinflammation., Soraya Maria Menezes, Fabio E Leal, Tim Dierckx, Ricardo Khouri, Daniele Decanine, Gilvaneia Silva-Santos, +several additional authors 2017 George Washington University

A Fashi Lymphoproliferative Phenotype Reveals Non-Apoptotic Fas Signalling In Htlv-1-Associated Neuroinflammation., Soraya Maria Menezes, Fabio E Leal, Tim Dierckx, Ricardo Khouri, Daniele Decanine, Gilvaneia Silva-Santos, +Several Additional Authors

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Human T-cell lymphotropic virus (HTLV)-1 was the first human retrovirus to be associated to cancer, namely Adult T-cell Leukemia (ATL), but its pathogenesis remains enigmatic, since only a minority of infected individuals develops either ATL or the neuroinflammatory disorder HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). A functional FAS -670 polymorphism in an interferon (IFN)-regulated STAT1-binding site has been associated to both ATL and HAM/TSP susceptibility. Fashi T stem cell memory (Tscm) cells have been identified as the hierarchical apex of ATL, but have not been investigated in HAM/TSP. In addition, both FAS and STAT1 have ...


Genomes Of Fasciola Hepatica From The Americas Reveal Colonization With Neorickettsia Endobacteria Related To The Agents Of Potomac Horse And Human Sennetsu Fevers., Samantha N McNulty, Jose F Tort, Gabriel Rinaldi, Bruce A Rosa, Victoria H. Mann, Patricia S. Latham, Paul J. Brindley, +several additional authors 2017 George Washington University

Genomes Of Fasciola Hepatica From The Americas Reveal Colonization With Neorickettsia Endobacteria Related To The Agents Of Potomac Horse And Human Sennetsu Fevers., Samantha N Mcnulty, Jose F Tort, Gabriel Rinaldi, Bruce A Rosa, Victoria H. Mann, Patricia S. Latham, Paul J. Brindley, +Several Additional Authors

Microbiology, Immunology, and Tropical Medicine Faculty Publications

Food borne trematodes (FBTs) are an assemblage of platyhelminth parasites transmitted through the food chain, four of which are recognized as neglected tropical diseases (NTDs). Fascioliasis stands out among the other NTDs due to its broad and significant impact on both human and animal health, as Fasciola sp., are also considered major pathogens of domesticated ruminants. Here we present a reference genome sequence of the common liver fluke, Fasciola hepatica isolated from sheep, complementing previously reported isolate from cattle. A total of 14,642 genes were predicted from the 1.14 GB genome of the liver fluke. Comparative genomics indicated ...


Mait Cells Are Reduced In Frequency And Functionally Impaired In Human T Lymphotropic Virus Type 1 Infection: Potential Clinical Implications., Dominic Paquin-Proulx, Benjamin C Greenspun, Emanuela A S Costa, Aluisio C Segurado, Esper G Kallas, Douglas F Nixon, Fabio E Leal 2017 George Washington University

Mait Cells Are Reduced In Frequency And Functionally Impaired In Human T Lymphotropic Virus Type 1 Infection: Potential Clinical Implications., Dominic Paquin-Proulx, Benjamin C Greenspun, Emanuela A S Costa, Aluisio C Segurado, Esper G Kallas, Douglas F Nixon, Fabio E Leal

Microbiology, Immunology, and Tropical Medicine Faculty Publications

HTLV-1 infection is associated with several inflammatory disorders, including the neurodegenerative condition HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). It is unclear why a minority of infected subjects develop HAM/TSP. The cellular immune response has been implicated in the development of inflammatory alterations in these patients; however the pathogenic mechanisms for disease progression remain unclear. Furthermore, HTLV-1-infected individuals have an increase incidence of Mycobacterium tuberculosis (Mtb) infection, suggesting that immunological defect are associated with HTLV-1 infection. Evidence suggests an important role for Mucosal-associated invariant T (MAIT) cells in the early control of Mtb infection. Chronic viral infections like HIV ...


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