keyword
MENU ▼
Read by QxMD icon Read
search

NKT cell

keyword
https://www.readbyqxmd.com/read/29677387/il13r%C3%AE-2-expression-identifies-tissue-resident-il-22-producing-plzf-innate-t-cells-in-the-human-liver
#1
Dominic Paquin-Proulx, Benjamin C Greenspun, Lise Pasquet, Benedikt Strunz, Soo Aleman, Karolin Falconer, Masaki Terabe, Jay A Berzofsky, Johan K Sandberg, Espen Melum, Douglas F Nixon, Niklas K Björkström
Innate lymphocytes are selectively enriched in the liver where they have important roles in liver immunology. Murine studies have shown that type I NKT cells can promote liver inflammation whereas type II NKT cells have an anti-inflammatory role. In humans, type II NKT cells were found to accumulate in the gut during inflammation and IL13Rα2 was proposed as a marker for these cells. In the human liver, less is known about type I and II NKT cells. Here, we studied the phenotype and function of human liver T cells expressing IL13Rα2...
April 20, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29665972/intranasal-delivery-of-influenza-antigen-by-nanoparticles-but-not-nkt-cell-adjuvant-differentially-induces-the-expression-of-b-cell-activation-factors-in-mice-and-swine
#2
Sankar Renu, Santosh Dhakal, Eunsoo Kim, Jonathan Goodman, Yashavanth S Lakshmanappa, Michael J Wannemuehler, Balaji Narasimhan, Prosper N Boyaka, Gourapura J Renukaradhya
Intranasal vaccination of pigs with poly lactic-co-glycolic acid and polyanhydride nanoparticles delivered inactivated influenza virus provides cross-reactive T-cell response, but not antibody response, resulting in incomplete protection and no reduction in nasal virus shedding. Expression of BAFF and Th2 transcription factor GATA-3 were downregulated in lungs of pigs vaccinated with influenza nanovaccine, but in mice it upregulated the expression of BAFF and cytokine TGFβ in cervical lymph nodes. However, the intranasal iNKT cell adjuvant, α-Galctosylceramide upregulates the expression of BAFF in pig lungs...
April 11, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29664401/histone-deacetylase-7-mediates-tissue-specific-autoimmunity-via-control-of-innate-effector-function-in-invariant-natural-killer-t-cells
#3
Herbert G Kasler, Intelly S Lee, Hyung W Lim, Eric Verdin
We report that Histone Deacetylase 7 (HDAC7) controls the thymic effector programming of Natural Killer T (NKT) cells, and that interference with this function contributes to tissue-specific autoimmunity. Gain of HDAC7 function in thymocytes blocks both negative selection and NKT development, and diverts Vα14/Jα18 TCR transgenic thymocytes into a Tconv-like lineage. Conversely, HDAC7 deletion promotes thymocyte apoptosis and causes expansion of innate-effector cells. Investigating the mechanisms involved, we found that HDAC7 binds PLZF and modulates PLZF-dependent transcription...
April 17, 2018: ELife
https://www.readbyqxmd.com/read/29643992/description-of-organ-specific-phenotype-and-functional-characteristics-of-tissue-resident-lymphocytes-from-liver-transplantation-donor-and-research-on-immune-tolerance-mechanism-of-liver
#4
Yunpeng Shi, Ping Zhang, Guangyi Wang, Xingkai Liu, Xiaodong Sun, Xin Zhang, Haijun Li, Jun Qi, Lei Ding, Ting Li, Ruoyan Zhang, Yuguo Chen, Jianpeng Zhou, Guoyue Lv, Zhengkun Tu
Aim: Prior to transplantation, Donation after Cardiac Death (DCD) liver transplantation livers are perfused with preservation solution. Therefore, this provides an abundant source of human liver lymphocytes, as well as mesenteric lymph node and spleen for the study of lymphocyte subset diversity in the peripheral blood, lymph node, spleen and liver. Methods: Lymphocyte subsets were isolated and purified from peripheral blood, lymph node, spleen and liver perfusion, the phenotypic and functional analysis of the tissue resident lymphocyte were performed by flow cytometry...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643189/elevated-hepatic-cd1d-levels-coincide-with-invariant-nkt-cell-defects-in-chronic-hepatitis-b-virus-infection
#5
Xiaosheng Tan, Yajie Ding, Peng Zhu, Rui Dou, Zhihui Liang, Daofeng Yang, Zhiyong Huang, Wei Wang, Xiongwen Wu, Xiufang Weng
Activation of invariant NKT (iNKT) cells manifests antiviral immune responses in vivo. However, clinical trials have failed to show consistent hepatitis B virus (HBV) DNA reduction postadministration of iNKT cell-specific agonist α-galactosylceramide (α-GalCer). In this study, we aimed to investigate HBV infection-related iNKT cell defects and explore iNKT cell-based therapeutic potential for chronic hepatitis B (CHB). Liver specimens from 30 HBV-infected hepatocellular carcinoma patients were collected for CD1d/hepatitis B surface Ag (HBsAg) staining and/or intrahepatic iNKT cell assay...
April 11, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29623561/nkt-cells-in-liver-diseases
#6
REVIEW
Shasha Zhu, Huimin Zhang, Li Bai
Natural killer T cells are innate-like and tissue-resident lymphocytes, which recognize lipid antigens and are enriched in the liver. Natural killer T cells play important roles in infections, tumors, autoimmune diseases, and metabolic diseases. In this study, we summarize recent findings on biology of natural killer T cells and their roles in hepatitis B virus and hepatitis C virus infection, autoimmune liver diseases, alcoholic liver disease, nonalcoholic fatty liver disease, and hepatocellular carcinoma...
April 6, 2018: Frontiers of Medicine
https://www.readbyqxmd.com/read/29616022/temporal-regulation-of-natural-killer-t-cell-interferon-gamma-responses-by-%C3%AE-catenin-dependent-and-independent-wnt-signaling
#7
Jessica C Kling, Margaret A Jordan, Lauren A Pitt, Jana Meiners, Thao Thanh-Tran, Le Son Tran, Tam T K Nguyen, Deepak Mittal, Rehan Villani, Raymond J Steptoe, Kiarash Khosrotehrani, Stuart P Berzins, Alan G Baxter, Dale I Godfrey, Antje Blumenthal
Natural killer T (NKT) cells are prominent innate-like lymphocytes in the liver with critical roles in immune responses during infection, cancer, and autoimmunity. Interferon gamma (IFN-γ) and IL-4 are key cytokines rapidly produced by NKT cells upon recognition of glycolipid antigens presented by antigen-presenting cells (APCs). It has previously been reported that the transcriptional coactivator β-catenin regulates NKT cell differentiation and functionally biases NKT cell responses toward IL-4, at the expense of IFN-γ production...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29599785/cd1d-restricted-type-ii-nkt-cells-reactive-with-endogenous-hydrophobic-peptides
#8
REVIEW
Yusuke Nishioka, Sakiko Masuda, Utano Tomaru, Akihiro Ishizu
NKT cells belong to a distinct subset of T cells that recognize hydrophobic antigens presented by major histocompatibility complex class I-like molecules, such as CD1d. Because NKT cells stimulated by antigens can activate or suppress other immunocompetent cells through an immediate production of a large amount of cytokines, they are regarded as immunological modulators. CD1d-restricted NKT cells are classified into two subsets, namely, type I and type II. CD1d-restricted type I NKT cells express invariant T cell receptors (TCRs) and react with lipid antigens, including the marine sponge-derived glycolipid α-galactosylceramide...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29588321/pro-tumor-steering-of-cancer-inflammation-by-p50-nf-%C3%AE%C2%BAb-enhances-colorectal-cancer-progression
#9
Chiara Porta, Alessandro Ippolito, Francesca Maria Consonni, Lorenzo Carraro, Giuseppe Celesti, Carmen Correale, Fabio Grizzi, Fabio Pasqualini, Silvia Tartari, Maurizio Rinaldi, Paolo Bianchi, Fiorella Balzac, Stefania Vetrano, Emilia Turco, Emilio Hirsch, Luigi Laghi, Antonio Sica
Although tumor-associated macrophages (TAMs) display a M2-skewed tumor-promoting phenotype in most cancers, in colorectal cancer (CRC), both TAM polarization and its impact remain controversial. We investigated the role of the M2-polarizing p50 NF-κB subunit in orchestrating TAM phenotype, tumor microenvironment composition, and CRC progression. We first demonstrate, by parallel studies in colitis-associated cancer (CAC) and in genetically driven ApcMin mouse models, that the p50-dependent inhibition of M1-polarized gut inflammation supports CRC development...
March 27, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29581354/memory-follicular-helper-invariant-nkt-cells-recognize-lipid-antigens-on-memory-b-cells-and-elicit-antibody-recall-responses
#10
Zuolong Chen, Shasha Zhu, Lu Wang, Di Xie, Huimin Zhang, Xiang Li, Xihua Zheng, Zhiwei Du, Jie Li, Li Bai
Invariant NKT (iNKT) cells have been shown to help B cells in a cognate or noncognate manner; however, whether cognate iNKT cell help induces B cell memory responses remains controversial, and the underlying mechanisms are still unclear. In this study, we demonstrated that, in the absence of follicular helper T cells, cognate iNKT cell help could promote B cell memory responses in mice that were dependent on the formation of memory follicular helper iNKT (iNKTFH ) cells and their interactions with memory B cells in recall responses...
March 26, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29580037/analysis-of-the-expression-of-surface-receptors-on-nk-cells-and-nkg2d-on-immunocytes-in-peripheral-blood-of-patients-with-nasopharyngeal-carcinoma
#11
Yuanji Xu, Rui Zhou, Chuanzhong Huang, Mingwei Zhang, Jieyu Li, Jingfeng Zong, Sufang Qiu, Shaojun Lin, Honglin Chen, Yunbin Ye, Jianji Pan
Background: The aberrant expression of surface receptors on immunocytes may represent potential markers of tumor escape for nasopharyngeal carcinoma (NPC). The aim of this study was to investigate the expression of representative receptors on natural killer (NK) cells and NK group 2, member D (NKG2D) on immunocytes in the peripheral blood of patients with NPC. Methods: Patients (n = 64) with NPC prior to initiation of treatment were defined as the study group. Healthy volunteers (n = 31) served as the control group...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29579707/arctigenin-protects-against-liver-injury-from-acute-hepatitis-by-suppressing-immune-cells-in-mice
#12
Xixi Cheng, Huafeng Wang, Jinlai Yang, Yingnan Cheng, Dan Wang, Fengrui Yang, Yan Li, Dongmei Zhou, Yanxia Wang, Zhenyi Xue, Lijuan Zhang, Qi Zhang, Luhong Yang, Rongxin Zhang, Yurong Da
As a phenylpropanoid and dibenzylbutyrolactone lignan present in medical plants, such as those used in traditional Chinese herbal medicine, including Arctium lappa (Niubang), arctigenin exhibits antimicrobial, anti-inflammatory, and anticancer activities. In this study, we investigated the protective role of arctigenin in Concanavalin A (ConA)-induced acute hepatitis in mice. Arctigenin remarkably reduced the congestion and necroinflammation of livers, and improved hepatic function (ALT and AST) in ConA-induced acute hepatitis in vivo...
March 23, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29576354/aged-garlic-extract-supplementation-modifies-inflammation-and-immunity-of-adults-with-obesity-a-randomized-double-blind-placebo-controlled-clinical-trial
#13
Changjie Xu, Anne E Mathews, Camila Rodrigues, Brandon J Eudy, Cheryl A Rowe, Alison O'Donoughue, Susan S Percival
BACKGROUND: Obesity is a serious global health issue and often results in low-grade systemic inflammation, increasing the risk for several chronic diseases. If obesity-induced inflammation could be reduced, fewer complications and co-morbidities might occur. OBJECTIVE: To investigate whether daily supplementation with aged garlic extract (AGE) could reduce chronic inflammation and improve immune function in adults with obesity. METHODS: Fifty-one healthy adults with obesity (mean age 45...
April 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29576002/diminished-frequency-of-menstrual-and-peripheral-blood-nkt-like-cells-in-patients-with-unexplained-recurrent-spontaneous-abortion-and-infertile-women
#14
Samira Hosseini, Fazel Shokri, Soheila Ansari Pour, Jalal Khoshnoodi, Mahmood Jeddi-Tehrani, Amir-Hassan Zarnani
Systemic monitoring of immune system may not precisely outline the local immune status in the uterus. This survey is a continuation of our previous studies on potential usefulness of menstrual blood (MB) immunophenotyping as a tool for investigation of immunological disturbances in pregnancy-related disorders. Peripheral blood (PB) and MB from healthy fertile (n = 15), unexplained recurrent spontaneous abortion (URSA; n = 15), and unexplained infertile women (n = 8) were collected simultaneously in the second day of their menstrual cycle and frequency of natural killer T (NKT)-like cell subpopulations were assessed by flow cytometry...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29566059/the-immunological-effect-of-galectin-9-tim-3-pathway-after-low-dose-mifepristone-treatment-in-mice-at-14-5-day-of-pregnancy
#15
Adrienn Lajko, Matyas Meggyes, Beata Polgar, Laszlo Szereday
The abortifacient Mifepristone (RU486) has proven to be a safe, effective, acceptable option for millions of women seeking abortion during the first and second trimester of pregnancy although its precise mechanism of action is not well understood. The main objective of this study was to investigate the impact of low dose Mifepristone administration on placental Galectin-9 (Gal-9) expression, as well as its effect on the cell surface expression of Gal-9, TIM-3 and CD107a molecules by different T and NK cell subsets...
2018: PloS One
https://www.readbyqxmd.com/read/29562195/unconventional-t-cell-targets-for-cancer-immunotherapy
#16
REVIEW
Dale I Godfrey, Jérôme Le Nours, Daniel M Andrews, Adam P Uldrich, Jamie Rossjohn
Most studies on the immunotherapeutic potential of T cells have focused on CD8 and CD4 T cells that recognize peptide antigens (Ag) presented by polymorphic major histocompatibility complex (MHC) class I and MHC class II molecules, respectively. However, unconventional T cells, which interact with MHC class Ib and MHC-I like molecules, are also implicated in tumor immunity, although their role therein is unclear. These include unconventional T cells targeting MHC class Ib molecules such as HLA-E and its murine ortholog Qa-1b, natural killer T (NKT) cells, mucosal associated invariant T (MAIT) cells, and γδ T cells...
March 20, 2018: Immunity
https://www.readbyqxmd.com/read/29560551/impaired-natural-killer-cell-subset-phenotypes-in-human-obesity
#17
Ina Bähr, Janine Jahn, Alexander Zipprich, Inge Pahlow, Julia Spielmann, Heike Kielstein
Obesity is associated with alterations in functionality of immune cells, like macrophages and natural killer (NK) cells, leading to an increased risk for severe infections and several cancer types. This study aimed to examine immune cell populations and functional NK cell parameters focusing on NK cell subset phenotypes in normal-weight and obese humans. Therefore, peripheral blood mononuclear cells (PBMCs) were isolated from normal-weight and obese individuals and analyzed by flow cytometry. Results show no significant changes in the frequency of monocytes, B lymphocytes, or NKT cells but a significantly increased frequency of T lymphocytes in obesity...
March 20, 2018: Immunologic Research
https://www.readbyqxmd.com/read/29559971/novel-approaches-to-exploiting-invariant-nkt-cells-in-cancer-immunotherapy
#18
REVIEW
Benjamin J Wolf, Jiyoung Elizabeth Choi, Mark A Exley
iNKT cells are a subset of innate-like T cells that utilize an invariant TCR alpha chain complexed with a limited repertoire of TCR beta chains to recognize specific lipid antigens presented by CD1d molecules. Because iNKT cells have an invariant TCR, they can be easily identified and targeted in both humans and mice via standard reagents, making this a population of T cells that has been well characterized. iNKT cells are some of the first cells to respond during an infection. By making different types of cytokines in response to different infection stimuli, iNKT cells help determine what kind of immune response then develops...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29544089/effect-of-high-vegf-c-mrna-expression-on-achievement-of-complete-remission-in-adult-acute-myeloid-leukemia
#19
Sung-Eun Lee, Ji Yoon Lee, A-Reum Han, Hee-Sun Hwang, Woo-Sung Min, Hee-Je Kim
Although vascular endothelial growth factor-C (VEGF-C) is known to be expressed in acute myeloid leukemia (AML) blasts, the relevance of VEGF-C in the clinical setting remains to be fully explored. We examined the effect of VEGF-C on achievement of complete remission (CR) in adult de novo AML and immune cell population profiles according to VEGF-C mRNA expression. In comparison of VEGF-C expression between the no-CR and CR groups, the CR group showed a trend toward higher levels of plasma VEGF-C (P = .088), whereas mRNA expression of VEGF-C was downregulated (P = ...
March 12, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29541077/differential-role-of-cathepsins-s-and-b-in-hepatic-apc-mediated-nkt-cell-activation-and-cytokine-secretion
#20
Álvaro de Mingo Pulido, Estefanía de Gregorio, Shilpi Chandra, Anna Colell, Albert Morales, Mitchell Kronenberg, Montserrat Marí
Natural killer T (NKT) cells exhibit a specific tissue distribution, displaying the liver the highest NKT/conventional T cell ratio. Upon antigen stimulation, NKT cells secrete Th1 cytokines, including interferon γ (IFNγ), and Th2 cytokines, including IL-4 that recruit and activate other innate immune cells to exacerbate inflammatory responses in the liver. Cysteine cathepsins control hepatic inflammation by regulating κB-dependent gene expression. However, the contribution of cysteine cathepsins other than Cathepsin S to NKT cell activation has remained largely unexplored...
2018: Frontiers in Immunology
keyword
keyword
22000
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"