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https://www.readbyqxmd.com/read/29147623/tissue-resident-memory-t-cells-play-a-key-role-in-the-efficacy-of-cancer-vaccines
#1
C Granier, C Blanc, S Karaki, T Tran, H Roussel, E Tartour
Resident memory CD8(+)T cells (TRM) usually defined by the CD103 marker represent a new subset of long-lived memory T cells that remain in the tissues. We directly demonstrate their specific role in cancer vaccine-induced tumor regression. In human, they also seem to play a major role in tumor immunosurveillance.
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29139478/trigger-happy-resident-memory-cd4-t-cells-inhabit-the-human-lungs
#2
A E Oja, B Piet, C Helbig, R Stark, D van der Zwan, H Blaauwgeers, E B M Remmerswaal, D Amsen, R E Jonkers, P D Moerland, M A Nolte, R A W van Lier, P Hombrink
Resident memory T cells (TRM) reside in the lung epithelium and mediate protective immunity against respiratory pathogens. Although lung CD8(+) TRM have been extensively characterized, the properties of CD4(+) TRM remain unclear. Here we determined the transcriptional signature of CD4(+) TRM, identified by the expression of CD103, retrieved from human lung resection material. Various tissue homing molecules were specifically upregulated on CD4(+) TRM, whereas expression of tissue egress and lymph node homing molecules were low...
November 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29139476/detection-of-hiv-1-specific-gastrointestinal-tissue-resident-cd8-t-cells-in-chronic-infection
#3
Brenna E Kiniry, Shengbin Li, Anupama Ganesh, Peter W Hunt, Ma Somsouk, Pamela J Skinner, Steven G Deeks, Barbara L Shacklett
Tissue-resident memory (TRM) CD8(+) T-cells are non-recirculating, long-lived cells housed in tissues that can confer protection against mucosal pathogens. Human immunodeficiency virus-1 (HIV-1) is a mucosal pathogen and the gastrointestinal tract is an important site of viral pathogenesis and transmission. Thus, CD8(+) TRM cells may be an important effector subset for controlling HIV-1 in mucosal tissues. This study sought to determine the abundance, phenotype, and functionality of CD8(+) TRM cells in the context of chronic HIV-1 infection...
November 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/29138347/core-concept-tissue-resident-memory-cells-emerging-as-key-player-in-health-and-disease
#4
Bob Roehr
No abstract text is available yet for this article.
November 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29135830/tissue-resident-lymphocytes-in-solid-organ-transplantation-innocent-passengers-or-the-key-to-organ-transplant-survival
#5
Amy C Prosser, Axel Kallies, Michaela Lucas
Short-term outcomes of solid organ transplantation have improved dramatically over the past several decades; however, long-term survival has remained static over the same time period, and chronic rejection remains a major cause of graft failure. The importance of donor, or 'passenger', lymphocytes to the induction of tolerance to allografts was recognized in the 1990s; however, their precise contribution to graft acceptance or rejection has not been elucidated. Recently, specialized populations of tissue-resident lymphocytes in nonlymphoid organs have been described...
November 14, 2017: Transplantation
https://www.readbyqxmd.com/read/29133348/non-pathogenic-colonization-with-chlamydia-in-the-gastrointestinal-tract-as-oral-vaccination-for-inducing-transmucosal-protection
#6
Luying Wang, Cuiming Zhu, Tianyuan Zhang, Qi Tian, Nu Zhang, Sandra Morrison, Richard Morrison, Min Xue, Guangming Zhong
Chlamydia has been detected in the gastrointestinal tracts of humans and animals. We now report that gastrointestinal Chlamydia muridarum is able to induce robust transmucosal protection in mice. C. muridarum colonization in the gastrointestinal tract correlated with both a shortened course of C. muridarum genital infection and stronger protection against subsequent genital tract challenge infection. Mice pre-inoculated intragastrically with C. muridarum became highly resistant to subsequent C. muridarum infection in the genital tract, resulting in prevention of pathology in the upper genital tract...
November 13, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/29130503/association-of-teen-mothers-and-grandmothers-parenting-capacities-with-child-development-a-study-protocol
#7
Damali Wilson, Deborah Gross, Stacy Hodgkinson, Kirby Deater-Deckard
Children born to teen mothers may experience less responsive and supportive parenting and are at heightened risk for a range of social, developmental, and health issues. There is literature to support the positive impact of grandmothers on teen parents and their children. However, what if the teen's mother is also limited in her parenting capacities? How do parenting capacities across these two generations of mothers affect the developing child? In this ongoing study we are examining two important aspects of parenting capacities, attachment quality and executive functioning, in teen mothers (TM) and their biological, co- residing mothers or grandmothers (GM or GGM)...
December 2017: Research in Nursing & Health
https://www.readbyqxmd.com/read/29128674/staged-development-of-long-lived-tcr%C3%AE-%C3%AE-th17-resident-memory-t-cell-population-to-candida-albicans-after-skin-infection
#8
Chang Ook Park, Xiujun Fu, Xiaodong Jiang, Youdong Pan, Jessica E Teague, Nicholas Collins, Tian Tian, John T O'Malley, Ryan O Emerson, Ji Hye Kim, Yookyung Jung, Rei Watanabe, Robert C Fuhlbrigge, Francis R Carbone, Thomas Gebhardt, Rachael A Clark, Charles P Lin, Thomas S Kupper
BACKGROUND: Candida albicans is a dimorphic fungus to which humans are exposed early in life and by adulthood it is part of the mycobiome of skin and other tissues. Neonatal skin lacks resident memory T (TRM) cells, but in adults the C. albicans skin test is a surrogate for immunocompetence. Young adult mice raised under SPF conditions are naive to C. albicans, and have recently been shown to have an immune system resembling that of neonatal humans. OBJECTIVE: We studied the evolution of the adaptive cutaneous immune response to Candida...
November 8, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29125199/evaluation-of-message-communication-strategy-combined-with-group-reminiscence-therapy-on-elders-with-mild-cognitive-impairment-in-long-term-care-facilities
#9
Huan-Huan Zhang, Peng-Cheng Liu, Jie Ying, Ying Shi, Shou-Qi Wang, Mei-Ling Zhang, Jiao Sun
OBJECTIVE: This study aims to evaluate combined effects of MESSAGE communication strategy and group reminiscence therapy (GRT) on elders with mild cognitive impairment (MCI) in long-term care facilities in Changchun, China. METHODS: This study is a nonrandomized controlled trial. Subjects included 60 elders with MCI. Participants were divided into intervention (MESSAGE communication strategy combined with GRT) and control groups (without any intervention). Primary outcomes comprised cognitive function and quality of life of elderly people, as measured by the Beijing version of the Montreal Cognitive Assessment and the Chinese (mainland) version of Short-Form 36 Health Survey assessment...
November 10, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29121080/respiratory-syncytial-virus-elicits-enriched-cd8-t-lymphocyte-responses-in-lung-compared-with-blood-in-african-green-monkeys
#10
Hualin Li, Cheryl Callahan, Michael Citron, Zhiyun Wen, Sinoeun Touch, Morgan A Monslow, Kara S Cox, Daniel J DiStefano, Kalpit A Vora, Andrew Bett, Amy Espeseth
Respiratory syncytial virus (RSV) is a leading cause of serious lower respiratory tract disease in young children and older adults throughout the world. Prevention of severe RSV disease through active immunization is optimal but no RSV vaccine has been licensed so far. Immune mechanisms of protection against RSV infection in humans have not been fully established, thus a comprehensive characterization of virus-specific immune responses in a relevant animal model will be beneficial in defining correlates of protection...
2017: PloS One
https://www.readbyqxmd.com/read/29118747/emerging-targets-for-developing-t-cell-mediated-vaccines-for-human-immunodeficiency-virus-hiv-1
#11
REVIEW
Danushka K Wijesundara, Charani Ranasinghe, Branka Grubor-Bauk, Eric J Gowans
Human immunodeficiency virus (HIV)-1 has infected >75 million individuals globally, and, according to the UN, is responsible for ~2.1 million new infections and 1.1 million deaths each year. Currently, there are ~37 million individuals with HIV infection and the epidemic has already resulted in 35 million deaths. Despite the advances of anti-retroviral therapy (ART), a cost-effective vaccine remains the best long-term solution to end the HIV-1 epidemic especially given that the vast majority of infected individuals live in poor socio-economic regions of the world such as Sub-Saharan Africa which limits their accessibility to ART...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29112130/role-of-immunological-memory-cells-as-a-therapeutic-target-in-multiple-sclerosis
#12
REVIEW
Tanima Bose
Pharmacological targeting of memory cells is an attractive treatment strategy in various autoimmune diseases, such as psoriasis and rheumatoid arthritis. Multiple sclerosis is the most common inflammatory disorder of the central nervous system, characterized by focal immune cell infiltration, activation of microglia and astrocytes, along with progressive damage to myelin sheaths, axons, and neurons. The current review begins with the identification of memory cell types in the previous literature and a recent description of the modulation of these cell types in T, B, and resident memory cells in the presence of different clinically approved multiple sclerosis drugs...
November 7, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29110344/current-technical-approaches-to-brain-energy-metabolism
#13
REVIEW
L Felipe Barros, Juan P Bolaños, Gilles Bonvento, Anne-Karine Bouzier-Sore, Angus Brown, Johannes Hirrlinger, Sergey Kasparov, Frank Kirchhoff, Anne N Murphy, Luc Pellerin, Michael B Robinson, Bruno Weber
Neuroscience is a technology-driven discipline and brain energy metabolism is no exception. Once satisfied with mapping metabolic pathways at organ level, we are now looking to learn what it is exactly that metabolic enzymes and transporters do and when, where do they reside, how are they regulated, and how do they relate to the specific functions of neurons, glial cells, and their subcellular domains and organelles, in different areas of the brain. Moreover, we aim to quantify the fluxes of metabolites within and between cells...
November 7, 2017: Glia
https://www.readbyqxmd.com/read/29099477/parents-reactions-to-the-diagnosis-of-duchenne-muscular-dystrophy-associations-between-resolution-family-functioning-and-child-behavior-problems
#14
Roberto Baiocco, Paola Castelli Gattinara, Giorgia Cioccetti, Salvatore Ioverno
BACKGROUND: Duchenne muscular dystrophy (DMD) is the most frequent inherited form of muscular dystrophy during childhood. DMD is a severe and progressive disease. Children initially have no symptoms, but the diagnosis is often delayed until the child is about 5 years old. PURPOSE: Although few studies have addressed parent reactions to DMD, parental reactions to other serious childhood conditions have been documented. This study aims to understand the resolution styles that parents use in the context of their children with DMD...
December 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/29093655/plasmacytoid-dendritic-cells-contribute-to-the-protective-immunity-induced-by-intranasal-treatment-with-fc-fused-interleukin-7-against-lethal-influenza-virus-infection
#15
Moon Cheol Kang, Han Wook Park, Dong-Hoon Choi, Young Woo Choi, Yunji Park, Young Chul Sung, Seung-Woo Lee
Developing a novel vaccine that can be applied against multiple strains of influenza virus is of utmost importance to human health. Previously, we demonstrated that the intranasal introduction of Fc-fused IL-7 (IL-7-mFc), a long-acting cytokine fusion protein, confers long-lasting prophylaxis against multiple strains of influenza A virus (IAV) by inducing the development of lung-resident memory-like T cells, called TRM-like cells. Here, we further investigated the mechanisms of IL-7-mFc-mediated protective immunity to IAVs...
October 2017: Immune Network
https://www.readbyqxmd.com/read/29080420/activation-and-trafficking-of-cd8-t-cells-during-viral-skin-infection-immunological-lessons-learned-from-vaccinia-virus
#16
REVIEW
Samuel J Hobbs, Jossef F Osborn, Jeffrey C Nolz
Epicutaneous delivery of vaccinia virus (VacV) by scarification of the skin generates robust and durable protective immunity, which was ultimately responsible for eradicating smallpox from the human race. Therefore, infection of the skin with VacV is often used in experimental model systems to study the activation of adaptive immunity, as well as the development and functional features of immunological memory. Here, we describe recent advances using this viral infection to identify and characterize the mechanisms regulating the activation and trafficking of cytotoxic CD8(+) T cells into the inflamed skin, the migratory features of CD8(+) T cells within the skin microenvironment, and finally, their subsequent differentiation into tissue-resident memory cells...
October 24, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/29075263/intestinal-barrier-interactions-with-specialized-cd8-t-cells
#17
REVIEW
Špela Konjar, Cristina Ferreira, Birte Blankenhaus, Marc Veldhoen
The trillions of microorganisms that reside in the gastrointestinal tract, essential for nutrient absorption, are kept under control by a single cell barrier and large amounts of immune cells. Intestinal epithelial cells (IECs) are critical in establishing an environment supporting microbial colonization and immunological tolerance. A large population of CD8(+) T cells is in direct and constant contact with the IECs and the intraepithelial lymphocytes (IELs). Due to their location, at the interphase of the intestinal lumen and external environment and the host tissues, they seem ideally positioned to balance immune tolerance and protection to preserve the fragile intestinal barrier from invasion as well as immunopathology...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29074097/behavioral-effects-of-early-life-maternal-trauma-witness-in-rats
#18
Hesong Liu, Gaurav Patki, Ankita Salvi, Matthew Kelly, Samina Salim
BACKGROUND: Earlier, we have reported that post-traumatic stress disorder (PTSD)-like behaviors developed in rats that witnessed their cage mates undergo repeated traumatic stress. More recently, we published that early life physical traumatic stress leads to later life depression-like behaviors in rats. Whether early life trauma witness causes later life PTSD-like behaviors is not known. Also unclear are sex-specific stress-induced behavioral variations in later life. The early life witness component of stress is an important aspect of stress-induced psychopathologies and must be investigated...
October 24, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29071811/top-down-contextual-knowledge-guides-visual-attention-in-infancy
#19
Kristen Tummeltshammer, Dima Amso
The visual context in which an object or face resides can provide useful top-down information for guiding attention orienting, object recognition, and visual search. Although infants have demonstrated sensitivity to covariation in spatial arrays, it is presently unclear whether they can use rapidly acquired contextual knowledge to guide attention during visual search. In this eye-tracking experiment, 6- and 10-month-old infants searched for a target face hidden among colorful distracter shapes. Targets appeared in Old or New visual contexts, depending on whether the visual search arrays (defined by the spatial configuration, shape and color of component items in the search display) were repeated or newly generated throughout the experiment...
October 26, 2017: Developmental Science
https://www.readbyqxmd.com/read/29067995/induction-of-vaginal-resident-hiv-specific-cd8-t-cells-with-mucosal-prime-boost-immunization
#20
H-X Tan, A K Wheatley, R Esterbauer, S Jegaskanda, J J Glass, D Masopust, R De Rose, S J Kent
Tissue-resident memory (TRM) CD8 T cells survey a range of non-lymphoid mucosal tissues where they rapidly mediate clearance of viral infections at the entry portals. Vaccines that establish CD8 TRM cells in the cervicovaginal mucosa hold promise for effective immunity against sexually transmitted HIV. We demonstrate that HIV-specific CD8 TRM cells can be established in the murine vaginal mucosa using a combined intranasal and intravaginal mucosal immunization with recombinant influenza-HIV vectors. Using in situ tetramer immunofluorescence microscopy, we found that this mucosally administered prime-boost immunization also resulted in the durable seeding of CD8 T cells in the frontline vaginal epithelial compartment as opposed to the vaginal submucosa...
October 25, 2017: Mucosal Immunology
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