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https://www.readbyqxmd.com/read/29907809/killer-cell-immunoglobulin-like-receptor-ligand-mismatching-and-outcome-after-haploidentical-transplantation-with-post-transplant-cyclophosphamide
#1
Avichai Shimoni, Myriam Labopin, Francesca Lorentino, Maria Teresa Van Lint, Yener Koc, Zafer Gülbas, Johanna Tischer, Benedetto Bruno, Didier Blaise, Pietro Pioltelli, Boris Afanasyev, Fabio Ciceri, Mohamad Mohty, Arnon Nagler
Haploidentical stem cell transplantation with T cell-replete grafts and post-transplant cyclophosphamide (PTCy) is increasingly used with encouraging outcome. Natural killer (NK) cell alloreactivity, predicted by missing killer cell immunoglobulin-like receptor (KIR) ligands in the recipient that are present in their donor improves outcome of T cell-depleted haploidentical transplants. We explored the role of KIR ligand mismatching in 444 acute leukemia patients after T cell-replete transplants with PTCy. Thirty-seven percent of all patients had KIR ligand mismatching...
June 15, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29891204/stereotactic-ablative-radiation-therapy-induces-systemic-differences-in-peripheral-blood-immunophenotype-dependent-on-irradiated-site
#2
Heather M McGee, Megan E Daly, Sohelia Azghadi, Susan L Stewart, Leslie Oesterich, Jeffrey Schlom, Renee Donahue, Jonathan D Schoenfeld, Qian Chen, Shyam Rao, Ruben C Fragoso, Richard K Valicenti, Robert J Canter, Emmanual M Maverakis, William J Murphy, Karen Kelly, Arta M Monjazeb
PURPOSE: Despite the strong interest in combining stereotactic ablative radiation therapy (SAR) with immunotherapy, limited data characterizing the systemic immune response after SAR are available. We hypothesized that the systemic immune response to SAR would differ by irradiated site owing to inherent differences in the microenvironment of various organs. METHODS AND MATERIALS: Patients receiving SAR to any organ underwent prospective blood banking before and 1 to 2 weeks after SAR...
April 22, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29869509/-results-of-the-treatment-in-selected-infertile-patients-with-high-density-of-endometrial-nk-cells-cd56-and-cd16-second-part
#3
Z Ulčová-Gallová, M Pešek, M Haschová, P Chaloupka, P Mukenšnabl, J Cibulka, P Lošan, K Bibková, Z Mičanová
INTRODUCTION: This statements follows the first part of our publication entitled Screening of endometrial NK cells in selected infertile patients (First part - Methods and current results), where we dealt with methodology and endometrial findings of the natural killer cells CD16+ and CD56+. These cells are among the most important in preimplantaion, and in implantation period, in early pregnancy too, but can also negatively influence above mentioned processes. OBJECTIVE: We focused on the immunomodulatory treatment with intramuscular immunoglobulins in 21 infertile patients with a high density of endometrial NK cells CD16+ and CD56+...
2018: Ceská Gynekologie
https://www.readbyqxmd.com/read/29869094/the-role-of-killer-cell-immunoglobulin-like-receptor-kir-genes-in-susceptibility-to-inflammatory-bowel-disease-systematic-review-and-meta-analysis
#4
REVIEW
Anwar Fathollahi, Saeed Aslani, Shayan Mostafaei, Nima Rezaei, Mahdi Mahmoudi
BACKGROUND: Inflammatory bowel disease (IBD) is a chronic inflammatory disease, which involves the gut and comprises of Crohn's disease (CD) and ulcerative colitis (UC). Immune cells, including natural killer (NK) cells, play an important role in the pathogenesis of the disease. Killer immunoglobulin-like receptors (KIRs) are NK cell surface receptors, which ligate to the class I major histocompatibility complex (MHC) and have inhibitory or activating effects on the NK cells. The aim of this study was to perform a meta-analysis of the six studies evaluating the association in the polymorphisms of these KIR genes and the IBD risk (4 UC and 5 CD studies)...
June 4, 2018: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29848119/disease-association-of-different-killer-cell-immunoglobulin-like-receptors-kir-and-hla-c-gene-combinations-in-reactive-arthritis
#5
Hong Sheng Sun, Dong Xia Liu, Yan Yan Bai, Nai Wen Hu
BACKGROUND: Reactive arthritis (ReA) is sterile arthritis triggered by bacterial gastrointenstinal or urogenital infections. Although the pathogenesis of ReA remains unclear, genetic factors seem to play an important role. Different killer cell immunoglobulin-like receptors (KIRs) and their corresponding specific histocompatibility leukocyte antigen-C (HLA-C) ligand genotypes have been implicated in susceptibility and resistance to infections and autoimmune diseases but have, thus far, not been investigated in ReA...
May 31, 2018: Modern Rheumatology
https://www.readbyqxmd.com/read/29793748/nk-cells-mediate-a-crucial-graft-versus-leukemia-effect-in-haploidentical-hsct-to-cure-high-risk-acute-leukemia
#6
REVIEW
Franco Locatelli, Daniela Pende, Michela Falco, Mariella Della Chiesa, Alessandro Moretta, Lorenzo Moretta
Natural killer (NK) cells are involved in innate defenses against viruses and tumors. Their function is finely tuned by activating and inhibitory receptors. Among the latter, killer immunoglobulin-like receptors and CD94/NKG2A recognize human leukocyte antigen (HLA) Class I molecules, allowing NK cells to discriminate between normal and aberrant cells, as well as to recognize allogeneic cells, because of their ability to sense HLA polymorphisms. This latter phenomenon plays a key role in HLA-haploidentical hematopoietic stem cell transplantation (haplo-HSCT) for high-risk acute leukemia patients transplanted from an NK-alloreactive donor...
May 21, 2018: Trends in Immunology
https://www.readbyqxmd.com/read/29787436/immunological-markers-of-chronic-occupational-radiation-exposure
#7
Valentina L Rybkina, Maria V Bannikova, Galina V Adamova, Harald Dörr, Harry Scherthan, Tamara V Azizova
This study aimed to identify immunological biomarkers for prolonged occupational radiation exposure and thus studied a random sample of the Mayak Production Association worker cohort (91 individuals). The control group included 43 local individuals never employed at the Mayak Production Association. To identify biomarkers, two groups of workers were formed: the first one included workers chronically exposed to external gamma rays at cumulative doses of 0.5-3.0 Gy (14 individuals); the second one included workers exposed to combined radiation-external gamma rays at doses ranging from 0...
July 2018: Health Physics
https://www.readbyqxmd.com/read/29769011/evolving-strategies-for-the-treatment-of-t-cell-lymphoma-a-systematic-review-and-recent-patents
#8
Kamel Laribi, Mustapha Alani, Catherine Truong, Alix Baugier de Materre
OBJECTIVE: Mature T-cell lymphomas are a heterogeneous group of T-cell malignancies with a poor outcome. The discovery of new molecular biomarkers has led to the emergence of new drugs in recent years that target various signaling pathways. METHOD: We examined all pertinent published patents through 2015 that analyzed novel methods for the diagnosis and treatment of T cell lymphoma, as well as related published and unpublished studies. Selection criteria were established before data collection...
May 16, 2018: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/29760706/complement-opsonized-hiv-1-alters-cross-talk-between-dendritic-cells-and-natural-killer-nk-cells-to-inhibit-nk-killing-and-to-upregulate-pd-1-cxcr3-and-ccr4-on-t-cells
#9
Rada Ellegård, Mohammad Khalid, Cecilia Svanberg, Hanna Holgersson, Ylva Thorén, Mirja Karolina Wittgren, Jorma Hinkula, Sofia Nyström, Esaki M Shankar, Marie Larsson
Dendritic cells (DCs), natural killer (NK) cells, and T cells play critical roles during primary HIV-1 exposure at the mucosa, where the viral particles become coated with complement fragments and mucosa-associated antibodies. The microenvironment together with subsequent interactions between these cells and HIV at the mucosal site of infection will determine the quality of immune response that ensues adaptive activation. Here, we investigated how complement and immunoglobulin opsonization influences the responses triggered in DCs and NK cells, how this affects their cross talk, and what T cell phenotypes are induced to expand following the interaction...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29760699/tetraspanin-cd9-a-key-regulator-of-cell-adhesion-in-the-immune-system
#10
REVIEW
Raquel Reyes, Beatriz Cardeñes, Yesenia Machado-Pineda, Carlos Cabañas
The tetraspanin CD9 is expressed by all the major subsets of leukocytes (B cells, CD4+ T cells, CD8+ T cells, natural killer cells, granulocytes, monocytes and macrophages, and immature and mature dendritic cells) and also at a high level by endothelial cells. As a typical member of the tetraspanin superfamily, a prominent feature of CD9 is its propensity to engage in a multitude of interactions with other tetraspanins as well as with different transmembrane and intracellular proteins within the context of defined membranal domains termed tetraspanin-enriched microdomains (TEMs)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29734222/progressive-lentivirus-infection-induces-natural-killer-cell-receptor-expressing-b-cells-in-the-gastrointestinal-tract
#11
Cordelia Manickam, Chiadika Nwanze, Daniel R Ram, Spandan V Shah, Scott Smith, Rhianna Jones, Brady Hueber, Kyle Kroll, Valerie Varner, Paul Goepfert, Stephanie Jost, R Keith Reeves
OBJECTIVE: Recently, a seemingly novel innate immune cell subset bearing features of natural killer and B cells was identified in mice. So-called NKB cells appear as first responders to infections, but whether this cell population is truly novel or is in fact a subpopulation of B cells and exists in higher primates remains unclear. The objective of this study was to identify NKB cells in primates and study the impact of HIV/SIV infections. DESIGN AND METHODS: NKB cells were quantified in both naïve and lentivirus infected rhesus macaques and humans by excluding lineage markers (CD3, CD127), and positive Boolean gating for CD20, NKG2A/C and/or NKp46...
May 3, 2018: AIDS
https://www.readbyqxmd.com/read/29731972/kir2dl2-combined-with-hla-c1-confers-risk-of-hepatitis-c-virus-related-hepatocellular-carcinoma-in-younger-patients
#12
Hiromi Saito, Takeji Umemura, Satoru Joshita, Tomoo Yamazaki, Naoyuki Fujimori, Takefumi Kimura, Michiharu Komatsu, Akihiro Matsumoto, Eiji Tanaka, Masao Ota
Killer cell immunoglobulin-like receptors (KIRs) are involved in the activation and inhibition of natural killer cells. Although combinations of KIRs and HLA have been associated with spontaneous and treatment-induced clearance of hepatitis C virus (HCV) infection, their roles are not fully understood in the context of hepatocellular carcinoma (HCC) development. We enrolled 787 consecutive patients with chronic HCV infection, which included 174 cases of HCC, and 325 healthy subjects to clarify the involvement of HLA-Bw and C, KIRs, and major histocompatibility complex class I chain-related gene A (MICA) gene polymorphisms (rs2596542 and rs1051792) in chronic HCV infection and HCV-related HCC...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29730008/ameliorative-effects-of-antrodia-cinnamomea-polysaccharides-against-cyclophosphamide-induced-immunosuppression-related-to-nrf2-ho-1-signaling-in-balb-c-mice
#13
Yange Liu, Anhui Yang, Yidi Qu, Zhuqian Wang, Yuqi Zhang, Yan Liu, Ning Wang, Lirong Teng, Di Wang
The objective of this study was to determine the ameliorative effects of Antrodia cinnamomea polysaccharide (ACPS) against cyclophosphamide (CTX)-induced immunosuppression in BALB/c mice. Four weeks of oral ACPS treatment successfully improved organ indexes and enhanced the function of T cells and the cytotoxicity of natural killer cells. CTX administration has been shown to notably decrease immunoglobulin A, G and M, interleukin 2, 6 and 12, and interferon α and γ levels in serum and in the spleen, and ACPS abolished these effects...
May 3, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29707140/a-phase-1-study-of-lirilumab-antibody-against-killer-immunoglobulin-like-receptor-antibody-kir2d-iph2102-in-patients-with-solid-tumors-and-hematologic-malignancies
#14
Norbert Vey, Lionel Karlin, Sophie Sadot-Lebouvier, Florence Broussais, Dominique Berton-Rigaud, Jérôme Rey, Aude Charbonnier, Delphine Marie, Pascale André, Carine Paturel, Robert Zerbib, Jaafar Bennouna, Gilles Salles, Anthony Gonçalves
Purpose: Anti-KIR monoclonal antibodies (mAbs) can enhance the antitumor responses of natural killer (NK) cells. We evaluated the safety of the anti-KIR2D mAb lirilumab in patients with various cancers. Experimental design: Thirty-seven patients with hematological malignancies ( n = 22) or solid tumors ( n = 15) were included in the study. Dose escalation (0.015 to 10 mg/kg) was conducted following a 3 + 3 design. Patients were scheduled to receive four cycles of treatment...
April 3, 2018: Oncotarget
https://www.readbyqxmd.com/read/29707126/hla-and-killer-cell-immunoglobulin-like-receptor-kirs-genotyping-in-patients-with-acute-viral-encephalitis
#15
Antonino Tuttolomondo, Claudia Colomba, Danilo Di Bona, Alessandra Casuccio, Domenico Di Raimondo, Giuseppe Clemente, Valentina Arnao, Rosaria Pecoraro, Paolo Ragonese, Anna Aiello, Giulia Accardi, Rosario Maugeri, Carlo Maida, Irene Simonetta, Vittoriano Della Corte, Domenico Gerardo Iacopino, Calogero Caruso, Antonio Cascio, Antonio Pinto
Introduction: The HLA genes, as well as the innate immune KIR genes, are considered relevant determinants of viral outcomes but no study, to our knowledge, has evaluated their role in the clinical setting of acute viral encephalitis. Results: Subjects with acute viral encephalitis in comparison to subjects without acute viral encephalitis showed a significantly higher frequency of 2DL1 KIR gene and AA KIR haplotypes and of HLA-C2 and HLA-A-Bw4 alleles. Subjects without acute viral encephalitis showed a higher frequency of interaction between KIR2DL2 and HLAC1...
April 3, 2018: Oncotarget
https://www.readbyqxmd.com/read/29695383/allelic-polymorphisms-of-kir-s-and-hla-s-predict-favorable-responses-to-tyrosine-kinase-inhibitors-in-cml
#16
Hiroshi Ureshino, Takero Shindo, Hiroto Kojima, Yasushi Kusunoki, Yuki Miyazaki, Hidenori Tanaka, Hiroh Saji, Atsushi Kawaguchi, Shinya Kimura
Response to tyrosine kinase inhibitors (TKIs) is variable in chronic myeloid leukemia (CML), and elevated natural killer (NK) cells during TKI therapy are positively correlated with superior outcomes. NK cell function involves interactions of their killer immunoglobulin-like receptors (KIRs) and human leukocyte antigen (HLA) class I on target cells, and the avidity of KIR-HLA interactions depends on the combination of KIR and HLA alleles. We hypothesized that KIR and HLA polymorphisms may influence response to TKIs...
June 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29692668/immune-modulation-of-i-v-immunoglobulin-in-women-with-reproductive-failure
#17
REVIEW
Ae R Han, Sung K Lee
Background: The mechanism of maternal immune tolerance of the semi-allogenic fetus has been explored extensively. The immune reaction to defend from invasion by pathogenic microorganisms should be maintained during pregnancy. An imbalance between the immune tolerance to the fetus and immune activation to the pathogenic organisms is associated with poor pregnancy outcomes. This emphasizes that the immune mechanism of successful reproduction is not just immune suppression, but adequate immune modulation...
April 2018: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29679487/allergen-specific-immunotherapy-induces-regulatory-t-cells-in-an-atopic-dermatitis-mouse-model
#18
J U Shin, S H Kim, J Y Noh, J H Kim, H R Kim, K Y Jeong, K H Park, J Lee, H Chu, J-H Lee, T-S Yong, J-W Park, K H Lee
BACKGROUND: Several studies have demonstrated that allergen-specific immunotherapy (SIT) can be an effective treatment for atopic dermatitis (AD). However, there is no relevant mouse model to investigate the mechanism and validate the novel modality of SIT in AD. METHODS: NC/Nga mice with induced AD-like skin lesions received a subcutaneous injection of SIT (an extract of the house dust mite Dermatophagoides farinae [DfE]) or placebo for 5 weeks). Clinical and histological improvements of AD-like skin lesions were examined...
April 21, 2018: Allergy
https://www.readbyqxmd.com/read/29676596/lung-dendritic-cells-drive-nk-cytotoxicity-in-chronic-obstructive-pulmonary-disease-via-il-15r%C3%AE
#19
Donna K Finch, Valerie R Stolberg, John Ferguson, Henrih Alikaj, Mohamed R Kady, Bradley W Richmond, Vasiliy V Polosukhin, Timothy S Blackwell, Lisa McCloskey, Jeffrey L Curtis, Christine M Freeman
RATIONALE: Lung natural killer (NK) cells kill a greater percentage of autologous lung parenchymal cells in COPD than in non-obstructed smokers. To become cytotoxic, NKs require priming, typically by dendritic cells (DC), but whether priming occurs in the lungs in COPD is unknown. METHODS: We used lung tissue and in some cases peripheral blood from patients undergoing clinically-indicated resections to determine in vitro killing of CD326+ lung epithelial cells by isolated lung CD56+ NKs...
April 20, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29666399/genotype-b-of-killer-cell-immunoglobulin-like-receptor-is-related-with-gastric-cancer-lesions
#20
Eric G Hernandez, Oswaldo Partida-Rodriguez, Margarita Camorlinga-Ponce, Miriam Nieves-Ramirez, Irma Ramos-Vega, Javier Torres, Martha Perez-Rodriguez
NK cells are important in innate immunity for their capacity to kill infected or cancer cells. The killer cell immunoglobulin-like receptors (KIR) are a family of polymorphic genes with inhibitory and activating functions. The main driving force for gastric cancer (GC) development is a chronic response, which causes an increase of NK cells in the gastric mucosa. The aim of this work was to study polymorphisms in KIR genes in patients with either GC or non-atrophic gastritis (NAG). We studied 242 patients (130 with NAG and 112 with GC) and contrasted with 146 asymptomatic individuals...
April 17, 2018: Scientific Reports
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