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https://www.readbyqxmd.com/read/28813462/a-comprehensive-profiling-of-t-and-b-lymphocyte-receptor-repertoires-from-a-chinese-origin-rhesus-macaque-by-high-throughput-sequencing
#1
Longfei Fu, Xinyang Li, Wei Zhang, Changxi Wang, Jinghua Wu, Huanming Yang, Jian Wang, Xiao Liu
Due to the close genetic background, high similarity of physiology, and susceptibility to infectious and metabolic diseases with humans, rhesus macaques have been widely used as an important animal model in biomedical research, especially in the study of vaccine development and human immune-related diseases. In recent years, high-throughput sequencing based immune repertoire sequencing (IR-SEQ) has become a powerful tool to study the dynamic adaptive immune responses. Several previous studies had analyzed the responses of B cells to HIV-1 trimer vaccine or T cell repertoire of rhesus macaques using this technique, however, there are little studies that had performed a comprehensive analysis of immune repertoire of rhesus macaques, including T and B lymphocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28812950/expression-of-cytochrome-p450-regulators-in-cynomolgus-macaque
#2
Yasuhiro Uno, Hiroshi Yamazaki
1. Cytochrome P450 (P450) regulators including nuclear receptors and transcription factors have not been fully investigated in cynomolgus macaques, an important species used in drug metabolism studies. In this study, we analyzed seventeen P450 regulators by sequence and phylogenetic analysis, and tissue expression. 2. Gene and genome structures of seventeen P450 regulators were similar to the human orthologs, and the deduced amino acid sequences showed high sequence identities (92-95%) and more closely clustered, with the human orthologs...
August 16, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28811166/biomechanical-implications-of-cortical-elastic-properties-of-the-macaque-mandible
#3
Paul C Dechow, Olga Panagiotopoulou, Poorva Gharpure
Knowledge of the variation in the elastic properties of mandibular cortical bone is essential for modeling bone function. Our aim was to characterize the elastic properties of rhesus macaque mandibular cortical bone and compare these to the elastic properties from mandibles of dentate humans and baboons. Thirty cylindrical samples were harvested from each of six adult female rhesus monkey mandibles. Assuming orthotropy, axes of maximum stiffness in the plane of the cortical plate were derived from ultrasound velocity measurements...
June 17, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28809773/a-macaque-model-for-rectal-lymphogranuloma-venereum-and-non-lymphogranuloma-venereum-chlamydia-trachomatis-impact-on-rectal-simian-human-immunodeficiency-virus-acquisition
#4
Sundaram Ajay Vishwanathan, Rachael D Aubert, Monica R Morris, Chunxia Zhao, Christi Philips, George M Khalil, Frank Deyounks, Kristen Kelley, Jana M Ritter, C Y Chen, Ellen N Kersh, Janet M McNicholl
BACKGROUND: Sustained genital tract inflammation caused by sexually transmitted infections (STIs) is known to increase risk of vaginal human immunodeficiency virus (HIV) infections but, to our knowledge, there are no nonhuman primate studies that have evaluated its link to rectal HIV acquisition. METHODS: Rhesus macaques inoculated with Chlamydia trachomatis (CT) (serovars LGV-L2 and CT-E; n = 7) or saline (n = 7) received up to 20 rectal challenges twice a week of simian/HIV immunodeficiency virus (SHIVSF162p3)...
September 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28809434/pneumatosis-intestinalis-in-an-siv-infected-rhesus-macaque-macaca-mulatta
#5
A L Johnson, K Van Rompay, J R Reader
Pneumatosis intestinalis (PI) has been described as an incidental finding in domestic animals and humans where it is associated with human immunodeficiency virus infection among other comorbidities. This report describes emphysematous changes consistent with PI in a simian immunodeficiency virus (SIV)-infected rhesus macaque (Macaca mulatta).
August 15, 2017: Journal of Medical Primatology
https://www.readbyqxmd.com/read/28800647/effects-of-vitrectomy-and-lensectomy-on-older-rhesus-macaques-oxygen-distribution-antioxidant-status-and-aqueous-humor-dynamics
#6
Carla J Siegfried, Ying-Bo Shui, Baohe Tian, T Michael Nork, Gregg A Heatley, Paul L Kaufman
Purpose: The purpose of this study is to evaluate effects of vitrectomy (PPV) and lens extraction with intraocular lens implantation (PE/IOL) on molecular oxygen (pO2) distribution, aqueous humor antioxidant-oxidant balance, aqueous humor dynamics, and histopathologic changes in the trabecular meshwork (TM) in the older macaque monkey. Methods: Six rhesus monkeys underwent PPV followed by PE/IOL. pO2, outflow facility, and intraocular pressure (IOP) were measured...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28800212/abo-blood-group-phenotype-frequency-estimation-using-molecular-phenotyping-in-rhesus-and-cynomolgus-macaques
#7
S Kanthaswamy, J Ng, R Oldt, L Valdivia, P Houghton, D G Smith
A much larger sample (N = 2369) was used to evaluate a previously reported distribution of the A, AB and B blood group phenotypes in rhesus and cynomolgus macaques from six different regional populations. These samples, acquired from 15 different breeding and research facilities in the US, were analyzed using a real-time quantitative polymerase chain reaction (qPCR) assay that targets single nucleotide polymorphisms (SNPs) responsible for the macaque A, B and AB phenotypes. The frequency distributions of blood group phenotypes of the two species differ significantly from each other, and significant regional differentiation within the geographic ranges of each species was also observed...
August 11, 2017: HLA
https://www.readbyqxmd.com/read/28794027/hiv-dna-adenovirus-multiclade-envelope-vaccine-induces-gp41-antibody-immunodominance-in-rhesus-macaques
#8
Qifeng Han, Wilton B Williams, Kevin O Saunders, Kelly E Seaton, Kevin J Wiehe, Nathan Vandergrift, Tarra Von Holle, Ashley M Trama, Robert J Parks, Kan Luo, Thaddeus C Gurley, Thomas B Kepler, Dawn J Marshall, David C Montefiori, Laura L Sutherland, Munir S Alam, John F Whitesides, Cindy Bowman, Sallie R Permar, Barney S Graham, John R Mascola, Patrick C Seed, Koen K A Van Rompay, Georgia D Tomaras, Michael A Moody, Barton F Haynes
Dominant antibody responses in vaccinees who received the multiclade (A, B and C) envelope (Env) DNA/rAd5 vaccine studied in the HIV-1 vaccine trials network (HVTN) efficacy trial 505 (HVTN 505), targeted Env gp41 and cross-reacted with microbial antigens. In this study, we asked if the DNA/rAd5 vaccine induced a similar antibody response in rhesus macaques (RMs) that are commonly used as an animal model for human HIV-1 infections and for testing candidate HIV-1 vaccines. We also asked if gp41 immunodominance could be avoided by immunization of neonatal RMs during the early stages of microbial colonization...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28793779/comparative-susceptibility-of-rhesus-macaques-of-indian-and-chinese-origin-to-vaginal-shiv-transmission-as-models-for-hiv-prevention-research
#9
Ronald Veazey, Binhua Ling
Historically, Indian origin rhesus macaques (iRM) have been preferred for SIV/HIV prevention, pathogenesis, and treatment studies, yet their supply is limited. Chinese origin rhesus macaques (cRM) are currently more available yet little is known regarding the relative susceptibility of this subspecies to vaginal transmission of SIV or SHIV. Here we compared the susceptibility of 40 cRM and 21 iRM to a single vaginal challenge with SHIVsf162P. Our results showed cRM have comparable primary SHIV infection as iRM, underscoring their equal importance in studies of HIV transmission and prevention...
August 10, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28792003/vaccine-modified-nf-kb-and-gr-signaling-in-cervicovaginal-epithelium-correlates-with-protection
#10
L Shang, A J Smith, C S Reilly, L Duan, K E Perkey, S Wietgrefe, M Zupancic, P J Southern, R P Johnson, J V Carlis, A T Haase
Cervicovaginal epithelium plays a critical role in determining the outcome of virus transmission in the female reproductive tract (FRT) by initiating or suppressing transmission-facilitating mucosal immune responses in naïve and SIVmac239Δnef-vaccinated animals, respectively. In this study, we examined the very early responses of cervical epithelium within 24 h after vaginal exposure to SIV in naive and SIVmac239Δnef-vaccinated rhesus macaques. Using both ex vivo and in vivo experimental systems, we found that vaginal exposure to SIV rapidly induces a broad spectrum of pro-inflammatory responses in the epithelium associated with a reciprocal regulation of NF-kB and glucocorticoid receptor (GR) signaling pathways...
August 9, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28783750/virulence-of-invasive-salmonella-typhimurium-st313-in-animal-models-of-infection
#11
Girish Ramachandran, Aruna Panda, Ellen E Higginson, Eugene Ateh, Michael M Lipsky, Sunil Sen, Courtney A Matson, Jasnehta Permala-Booth, Louis J DeTolla, Sharon M Tennant
Salmonella Typhimurium sequence type (ST) 313 produces septicemia in infants in sub-Saharan Africa. Although there are known genetic and phenotypic differences between ST313 strains and gastroenteritis-associated ST19 strains, conflicting data about the in vivo virulence of ST313 strains have been reported. To resolve these differences, we tested clinical Salmonella Typhimurium ST313 and ST19 strains in murine and rhesus macaque infection models. The 50% lethal dose (LD50) was determined for three Salmonella Typhimurium ST19 and ST313 strains in mice...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28783746/identification-of-unique-b-virus-macacine-herpesvirus-1-epitopes-of-zoonotic-and-macaque-isolates-using-monoclonal-antibodies
#12
David Katz, Wei Shi, Manjunath S Gowda, Mugdha Vasireddi, Irina Patrusheva, Hyuk-Kyu Seoh, Chadi N Filfili, Martin J Wildes, Jay Oh, Julia K Hilliard
Our overall aim is to develop epitope-based assays for accurate differential diagnosis of B virus zoonotic infections in humans. Antibodies to cross-reacting epitopes on human-simplexviruses continue to confound the interpretation of current assays where abundant antibodies exist from previous infections with HSV types 1 and 2. To find B virus-specific epitopes we cloned ten monoclonal antibodies (mAbs) from the hybridomas we produced. Our unique collection of rare human sera from symptomatic and asymptomatic patients infected with B virus was key to the evaluation and identification of the mAbs as reagents in competition ELISAs (mAb-CE)...
2017: PloS One
https://www.readbyqxmd.com/read/28782436/charcot-leyden-crystals-do-they-exist-in-veterinary-species-a-case-report-and-literature-review
#13
Eunju Choi, Andrew D Miller, Elizabeth Devenish, Makoto Asakawa, Marina McConkey, Jeanine Peters-Kennedy
The Charcot-Leyden crystal (CLC) is a major human eosinophil protein that readily crystallizes; these crystals are common in eosinophilic diseases. Although anecdotal existence of these crystals is known in veterinary pathology, definitive reports do not exist, to our knowledge. We identified eosinophilic crystals in a laryngeal myxosarcoma from a 2-y-old, spayed female, Labrador Retriever dog that were tentatively interpreted as CLCs. However, Ziehl-Neelsen acid-fast stain was negative, arguing against CLCs...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28780040/long-term-direct-visualization-of-passively-transferred-fluorophore-conjugated-antibodies
#14
Jeffrey R Schneider, Ann M Carias, Arangaserry R Bastian, Gianguido C Cianci, Patrick F Kiser, Ronald S Veazey, Thomas J Hope
The use of therapeutic antibodies, delivered by intravenous (IV) instillation, is a rapidly expanding area of biomedical treatment for a variety of conditions. However, little is known about how the antibodies are anatomically distributed following infusion and the underlying mechanism mediating therapeutic antibody distribution to specific anatomical sites remains to be elucidated. Current efforts utilize low resolution and sensitivity methods such as ELISA and indirect labeling imaging techniques, which often leads to high background and difficulty in assessing biodistribution...
August 2, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28774735/an-autonomous-automated-and-mobile-device-to-concurrently-assess-several-cognitive-functions-in-group-living-non-human-primates
#15
Fizet Jonas, Rimele Adam, Pebayle Thierry, Cassel Jean-Christophe, Kelche Christian, Meunier Hélène
Research methods in cognitive neuroscience using non-human primates have undergone notable changes over the last decades. Recently, several research groups have described freely accessible devices equipped with a touchscreen interface. Two characteristics of such systems are of particular interest: some apparatuses include automated identification of subjects, while others are mobile. Here, we designed, tested and validated an experimental system that, for the first time, combine automatization and mobility...
July 31, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28771605/impact-of-prior-flavivirus-immunity-on-zika-virus-infection-in-rhesus-macaques
#16
Michael K McCracken, Gregory D Gromowski, Heather L Friberg, Xiaoxu Lin, Peter Abbink, Rafael De La Barrera, Kenneth H Eckles, Lindsey S Garver, Michael Boyd, David Jetton, Dan H Barouch, Matthew C Wise, Bridget S Lewis, Jeffrey R Currier, Kayvon Modjarrad, Mark Milazzo, Michelle Liu, Anna B Mullins, J Robert Putnak, Nelson L Michael, Richard G Jarman, Stephen J Thomas
Studies have demonstrated cross-reactivity of anti-dengue virus (DENV) antibodies in human sera against Zika virus (ZIKV), promoting increased ZIKV infection in vitro. However, the correlation between in vitro and in vivo findings is not well characterized. Thus, we evaluated the impact of heterotypic flavivirus immunity on ZIKV titers in biofluids of rhesus macaques. Animals previously infected (≥420 days) with DENV2, DENV4, or yellow fever virus were compared to flavivirus-naïve animals following infection with a Brazilian ZIKV strain...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28771513/a-modified-vaccinia-ankara-vaccine-vector-expressing-a-mosaic-h5-hemagglutinin-reduces-viral-shedding-in-rhesus-macaques
#17
Nicholas W Florek, Attapon Kamlangdee, James P Mutschler, Brock Kingstad-Bakke, Nancy Schultz-Darken, Karl W Broman, Jorge E Osorio, Thomas C Friedrich
The rapid antigenic evolution of influenza viruses requires frequent vaccine reformulations. Due to the economic burden of continuous vaccine reformulation and the threat of new pandemics, there is intense interest in developing vaccines capable of eliciting broadly cross-reactive immunity to influenza viruses. We recently constructed a "mosaic" hemagglutinin (HA) based on subtype 5 HA (H5) and designed to stimulate cellular and humoral immunity to multiple influenza virus subtypes. Modified vaccinia Ankara (MVA) expressing this H5 mosaic (MVA-H5M) protected mice against multiple homosubtypic H5N1 strains and a heterosubtypic H1N1 virus...
2017: PloS One
https://www.readbyqxmd.com/read/28768869/protective-efficacy-of-broadly-neutralizing-antibodies-with-incomplete-neutralization-activity-against-shiv-in-rhesus-monkeys
#18
Boris Julg, Devin Sok, Stephen D Schmidt, Peter Abbink, Ruchi M Newman, Thomas Broge, Caitlyn Linde, Joseph Nkolola, Khoa Le, David Su, Julia Torabi, Melissa Pack, Amarendra Pegu, Todd M Allen, John R Mascola, Dennis R Burton, Dan H Barouch
HIV broadly neutralizing antibodies (bnAbs) have been shown to occasionally display unusual virus neutralization profiles with non-sigmoidal slopes and plateaus at <100% neutralization against a variety of viruses. The significance of incomplete neutralization for the ability of bnAbs to mediate protective effects in vivo however is undetermined. In the current study, we selected two bnAbs, PGT121 and 3BNC117, as they incompletely neutralize the clade C SHIV stock (SHIV-327c) at 85% and 70%, respectively, and performed a protection study in rhesus macaques...
August 2, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28765581/oropharyngeal-mucosal-transmission-of-zika-virus-in-rhesus-macaques
#19
Christina M Newman, Dawn M Dudley, Matthew T Aliota, Andrea M Weiler, Gabrielle L Barry, Mariel S Mohns, Meghan E Breitbach, Laurel M Stewart, Connor R Buechler, Michael E Graham, Jennifer Post, Nancy Schultz-Darken, Eric Peterson, Wendy Newton, Emma L Mohr, Saverio Capuano, David H O'Connor, Thomas C Friedrich
Zika virus is present in urine, saliva, tears, and breast milk, but the transmission risk associated with these body fluids is currently unknown. Here we evaluate the risk of Zika virus transmission through mucosal contact in rhesus macaques. Application of high-dose Zika virus directly to the tonsils of three rhesus macaques results in detectable plasma viremia in all animals by 2 days post-exposure; virus replication kinetics are similar to those observed in animals infected subcutaneously. Three additional macaques inoculated subcutaneously with Zika virus served as saliva donors to assess the transmission risk from contact with oral secretions from an infected individual...
August 1, 2017: Nature Communications
https://www.readbyqxmd.com/read/28758637/dna-prime-protein-boost-vaccination-elicits-robust-humoral-response-in-rhesus-macaques-using-oligomeric-simian-immunodeficiency-virus-envelope-and-advax-delta-inulin-adjuvant
#20
Veena Menon, Victor I Ayala, Sneha P Rangaswamy, Irene Kalisz, Stephen Whitney, Lindsey Galmin, Asma Ashraf, Celia LaBranche, David Montefiori, Nikolai Petrovsky, Vaniambadi S Kalyanaraman, Ranajit Pal
The partial success of the RV144 trial underscores the importance of envelope-specific antibody responses for an effective HIV-1 vaccine. Oligomeric HIV-1 envelope proteins delivered with a potent adjuvant are expected to elicit strong antibody responses with broad neutralization specificity. To test this hypothesis, two SIV envelope proteins were formulated with delta inulin-based adjuvant (Advax) and used to immunize nonhuman primates. Oligomeric gp140-gp145 from SIVmac251 and SIVsmE660 was purified to homogeneity...
July 31, 2017: Journal of General Virology
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