keyword
MENU ▼
Read by QxMD icon Read
search

MICA

keyword
https://www.readbyqxmd.com/read/28334733/mhc-class-i-chain-related-protein-a-and-b-mica-and-micb-are-predominantly-expressed-intracellularly-in-tumour-and-normal-tissue
#1
Hormas Ghadially, Lee Brown, Chris Lloyd, Leeanne Lewis, Arthur Lewis, Janette Dillon, Richard Sainson, Jelena Jovanovic, Natalie J Tigue, David Bannister, Lisa Bamber, Viia Valge-Archer, Robert W Wilkinson
BACKGROUND: Major histocompatibility complex (MHC) class I chain-related protein A (MICA) and MHC class I chain-related protein B (MICB) are polymorphic proteins that are induced upon stress, damage or transformation of cells which act as a 'kill me' signal through the natural-killer group 2, member D receptor expressed on cytotoxic lymphocytes. MICA/B are not thought to be constitutively expressed by healthy normal cells but expression has been reported for most tumour types. However, it is not clear how much of this protein is expressed on the cell surface...
March 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28326769/octadecyltrichlorosilane-deposition-on-mica-surfaces-the-insight-interface-interaction-mechanism
#2
Jun Huang, Xiaokong Liu, Xiaoyong Qiu, Lei Xie, Bin Yan, Xiaogang Wang, Qingxue Huang, Hongbo Zeng
Surface functionalization by alkylsilanes has been widely used in many engineering applications. In this work, a systematic investigation was conducted on the deposition behaviors of octadecyltrichlorosilane (OTCS) on freshly cleaved mica surfaces that possess low density of reactive sites (i.e., silanol groups) via a vapor deposition method. The deposition of OTCS molecules on mica was found to follow a two-stage process, as monitored by measuring the surface morphology using atomic force microscope (AFM) and wettability of the samples obtained at different deposition times...
March 22, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28322797/transcriptional-activation-of-the-mica-gene-with-an-engineered-crispr-cas9-system
#3
Kazuma Sekiba, Mari Yamagami, Motoyuki Otsuka, Tatsunori Suzuki, Takahiro Kishikawa, Rei Ishibashi, Motoko Ohno, Masaya Sato, Kazuhiko Koike
Major histocompatibility complex class I polypeptide-related sequence A (MICA) is a prototypical NKG2D ligand. Because immune cells, such as natural killer (NK) cells, recognize virally infected or transformed cells and eliminate them through the interaction between NKG2D receptors on NK cells and NKG2D ligands on pathogenic cells, MICA expression levels are associated with NK cell-mediated immunity. Here, we report that an engineered clustered regularly interspaced short palindromic repeats-Cas9-related complex targeting MICA gene promoter sequences activates transcription of the MICA gene from its endogenous locus...
March 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28294495/ultrathin-covalently-bound-organic-layers-on-mica-formation-of-atomically-flat-biofunctionalizable-surfaces
#4
Rickdeb Sen, Digvijay Gahtory, Rui Rijo Carvalho, Bauke Albada, Floris L van Delft, Han Zuilhof
Mica is the substrate of choice for microscopic visualization of a wide variety of intricate nanostructures. Unfortunately, the lack of a facile strategy for its modification has prevented the on-mica assembly of nanostructures. Herein, we disclose a convenient catechol-based linker that enables various surface-bound metal-free click reactions, and an easy modification of mica with DNA nanostructures and a horseradish peroxidase mimicking hemin/G-quadruplex DNAzyme.
March 15, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28294381/cd3-cd8-nkg2d-t-lymphocytes-induce-apoptosis-and-necroptosis-in-hla-negative-cells-via-fasl-fas-interaction
#5
O K Ivanova, T N Sharapova, E A Romanova, L P Sashchenko, D V Yashin
An important problem in cellular immunology is to identify new populations of cytotoxic lymphocytes capable of killing tumor cells that have lost classical components of MHC-machinery and to understand mechanisms of the death of these cells. We have previously found that CD4(+) CD25(+) lymphocytes appear in the lymphokine-activated killer (LAK) cell culture, which carry Tag7 (PGRP-S) and FasL proteins on their surface and can kill Hsp70- and Fas-expressing HLA-negative cells. In this work, we have continued to study the mechanisms of killing of the HLA-negative tumor cells, focusing this time on the CD8+ lymphocytes...
March 15, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28293239/major-histocompatibility-complex-class-i-chain-related-a-mica-molecules-relevance-in-solid-organ-transplantation
#6
REVIEW
Ajay Kumar Baranwal, Narinder K Mehra
An ever growing number of reports on graft rejection and/or failure even with good HLA matches have highlighted an important role of non-HLA antigens in influencing allograft immunity. The list of non-HLA antigens that have been implicated in graft rejection in different types of organ transplantation has already grown long. Of these, the Major Histocompatibility Complex class I chain-related molecule A (MICA) is one of the most polymorphic and extensively studied non-HLA antigenic targets especially in the kidney transplantation...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28289413/mica-and-nkg2d-is-there-an-impact-on-kidney-transplant-outcome
#7
REVIEW
Matilde Risti, Maria da Graça Bicalho
This paper aims to present an overview of MICA and natural killer group 2 member D (NKG2D) genetic and functional interactions and their impact on kidney transplant outcome. Organ transplantation has gone from what can accurately be called a "clinical experiment" to a routine and reliable practice, which has proven to be clinically relevant, life-saving and cost-effective when compared with non-transplantation management strategies of both chronic and acute end-stage organ failures. The kidney is the most frequently transplanted organ in the world (transplant-observatory)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28279834/in-situ-afm-imaging-of-apolipoprotein-a-i-directly-derived-from-plasma-hdl
#8
Chaoye Gan, Zhexuan Wang, Yong Chen
BACKGROUND AND AIMS: The major apolipoproteins of plasma lipoproteins play vital roles in the structural integrity and physiological functions of lipoproteins. More than ten structural models of apolipoprotein A-I (apoA-I), the major apolipoprotein of high-density lipoprotein (HDL), have been developed successively. In these models, apoA-I was supposed to organize in a ring-shaped form. To date, however, there is no direct evidence under physiological condition. METHODS: Here, atomic force microscopy (AFM) was used to in situ visualize the organization of apoA-I, which was exposed via depletion of the lipid component of plasma HDL pre-immobilized on functionalized mica sheets...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28279833/effect-of-mipomersen-on-ldl-cholesterol-in-patients-with-severe-ldl-hypercholesterolaemia-and-atherosclerosis-treated-by-lipoprotein-apheresis-the-mica-study
#9
Elisa Waldmann, Anja Vogt, Alexander Crispin, Julia Altenhofer, Ina Riks, Klaus G Parhofer
BACKGROUND AND AIMS: In this study, we evaluated the effect of mipomersen in patients with severe LDL-hypercholesterolaemia and atherosclerosis, treated by lipid lowering drugs and regular lipoprotein apheresis. METHODS: This prospective, randomized, controlled phase II single center trial enrolled 15 patients (9 males, 6 females; 59 ± 9 y, BMI 27 ± 4 kg/m(2)) with established atherosclerosis, LDL-cholesterol ≥130 mg/dL (3.4 mmol/L) despite maximal possible drug therapy, and fulfilling German criteria for regular lipoprotein apheresis...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28277489/analysis-of-the-common-genetic-component-of-large-vessel-vasculitides-through-a-meta-immunochip-strategy
#10
F David Carmona, Patrick Coit, Güher Saruhan-Direskeneli, José Hernández-Rodríguez, María C Cid, Roser Solans, Santos Castañeda, Augusto Vaglio, Haner Direskeneli, Peter A Merkel, Luigi Boiardi, Carlo Salvarani, Miguel A González-Gay, Javier Martín, Amr H Sawalha
Giant cell arteritis (GCA) and Takayasu's arteritis (TAK) are major forms of large-vessel vasculitis (LVV) that share clinical features. To evaluate their genetic similarities, we analysed Immunochip genotyping data from 1,434 LVV patients and 3,814 unaffected controls. Genetic pleiotropy was also estimated. The HLA region harboured the main disease-specific associations. GCA was mostly associated with class II genes (HLA-DRB1/HLA-DQA1) whereas TAK was mostly associated with class I genes (HLA-B/MICA). Both the statistical significance and effect size of the HLA signals were considerably reduced in the cross-disease meta-analysis in comparison with the analysis of GCA and TAK separately...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28265806/the-role-of-social-influences-on-pro-environment-behaviors-in-the-san-diego-region
#11
Mica Estrada, P Wesley Schultz, Nilmini Silva-Send, Michel A Boudrias
From a social psychological perspective, addressing the threats of climate change involves not only education, which imparts objective facts upon a passive individual, but also a socializing process. The Tripartite Integration Model of Social Influence (TIMSI) provides a theoretical framework that connects acquiring climate change knowledge with integration into a community, which results in greater engagement in climate friendly behaviors. Survey data were collected from 1000 residents in San Diego County...
March 6, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28263026/epitaxial-growth-of-ternary-topological-insulator-bi2-te2-se-2d-crystals-on-mica
#12
Yujing Liu, Min Tang, Mengmeng Meng, Mingzhan Wang, Jinxiong Wu, Jianbo Yin, Yubing Zhou, Yunfan Guo, Congwei Tan, Wenhui Dang, Shaoyun Huang, H Q Xu, Yong Wang, Hailin Peng
Nanostructures of ternary topological insulator (TI) Bi2 Te2 Se are, in principle, advantageous to the manifestation of topologically nontrivial surface states, due to significantly enhanced surface-to-volume ratio compared with its bulk crystals counterparts. Herein, the synthesis of 2D Bi2 Te2 Se crystals on mica via the van der Waals epitaxy method is explored and systematically the growth behaviors during the synthesis process are investigated. Accordingly, 2D Bi2 Te2 Se crystals with domain size up to 50 µm large and thickness down to 2 nm are obtained...
March 6, 2017: Small
https://www.readbyqxmd.com/read/28262710/graphene-visualizes-the-ion-distribution-on-air-cleaved-mica
#13
Pantelis Bampoulis, Kai Sotthewes, Martin H Siekman, Harold J W Zandvliet, Bene Poelsema
The distribution of potassium (K(+)) ions on air-cleaved mica is important in many interfacial phenomena such as crystal growth, self-assembly and charge transfer on mica. However, due to experimental limitations to nondestructively probe single ions and ionic domains, their exact lateral organization is yet unknown. We show, by the use of graphene as an ultra-thin protective coating and scanning probe microscopies, that single potassium ions form ordered structures that are covered by an ice layer. The K(+) ions prefer to minimize the number of nearest neighbour K(+) ions by forming row-like structures as well as small domains...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261975/association-between-genetic-variants-in-the-human-leukocyte-antigen-b-mica-and-takayasu-arteritis-in-chinese-han-population
#14
Xiaoting Wen, Si Chen, Jing Li, Yuan Li, Liubing Li, Ziyan Wu, Hui Yuan, Xinping Tian, Fengchun Zhang, Yongzhe Li
AIM: Takayasu arteritis (TA) is a rare autoimmune disease with ethnic differences. Genome-wide association studies (GWAS) showed novel genetic variants in the human leukocyte antigen (HLA) region were associated with TA. The present study aimed to investigate the linkage between these single nucleotide polymorphisms (SNP) and TA in a Chinese Han population. METHODS: Four hundred and twelve patients from multiple centers and 597 healthy controls were genotyped using the Sequenom MassArray iPLEX platform...
March 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28256293/use-of-a-home-vacuum-assisted-closure-device-in-the-burn-population-is-both-cost-effective-and-efficacious
#15
Oren P Mushin, Jarrod T Bogue, Mica D Esquenazi, Nicole Toscano, Derek E Bell
INTRODUCTION: The vacuum assisted closure device (VAC) improves wound-healing when utilized as a bolster to secure split thickness skin grafts (STSG). Patients typically remain hospitalized for VAC therapy; however, home VACs (hVAC) are now available. Limited studies examine burns treated with hVAC as a STSG bolster. METHOD: A retrospective study of records from an ABA verified regional burn center was conducted over 23 months. Patients included STSGs for burn. Data points included demographics, burn mechanism and location, graft characteristics, hospital length of stay (LOS), and time to heal...
February 27, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28256194/polymorphic-variations-associated-with-doxorubicin-induced-cardiotoxicity-in-breast-cancer-patients
#16
Valentina K Todorova, Issam Makhoul, Ishwori Dhakal, Jeanne Wei, Annjanette Stone, Weleetka Carter, Aaron Owen, V Suzanne Klimberg
Doxorubicin (DOX) is a commonly used antineoplastic agent for treatment of various malignancies, and its use is associated with unpredictable cardiotoxicity. Susceptibility to DOX cardiotoxicity is largely patient-dependent suggesting genetic predisposition. We have previously found that individual sensitivity to DOX-cardiotoxicity was associated with differential expression of genes implicated in inflammatory response and immune trafficking, which was consistent with the increasing number of reports highlighting the important role of HLA complex polymorphism in hypersensitivity to drug toxicity...
March 2, 2017: Oncology Research
https://www.readbyqxmd.com/read/28245380/-decitabine-enhances-the-sensitivity-of-leukemia-stem-cell-to-allo-nk-cell-mediated-killing
#17
Qian Li, Shan-Shan Wei, Jin-Gao Li, Shao-Xian Chen, Jing Chen, Hui-Ting Huang, Qi Peng, Ping-Fang Xia, Miao-Rong She
OBJECTIVE: To investigate the allo-NK cell-mediated killing effect enhanced by decitabine on leukemia stem cells(LSC) and the underlying mechanisms. METHODS: LSC were separated from KG1a cells by using immunomagnetic beads. Allo-NK cells were isolated and purified from PBMC of healthy donors. Cytotoxicity of allo-NK cells against LSC were measured by LDH releasing assay. The apoptosis induced by allo-NK cells in LSC and the expressions of NKG2D ligands including MICA/B and ULBP1-3 on LSC were detected by flow cytometry...
February 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28230209/direct-observation-of-the-dynamics-of-single-metal-ions-at-the-interface-with-solids-in-aqueous-solutions
#18
Maria Ricci, William Trewby, Clodomiro Cafolla, Kislon Voïtchovsky
The dynamics of ions adsorbed at the surface of immersed charged solids plays a central role in countless natural and industrial processes such as crystal growth, heterogeneous catalysis, electrochemistry, or biological function. Electrokinetic measurements typically distinguish between a so-called Stern layer of ions and water molecules directly adsorbed on to the solid's surface, and a diffuse layer of ions further away from the surface. Dynamics within the Stern layer remain poorly understood, largely owing to a lack of in-situ atomic-level insights...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220766/immunological-biomarkers-and-long-term-graft-survival-prospective-follow-up-of-457-kidney-transplant-recipients
#19
Michał Ciszek, Krzysztof Mucha, Bartosz Foroncewicz, Dorota Żochowska, Maciej Kosieradzki, Tadeusz Grochowiecki, Magdalena Durlik, Andrzej Górski, Leszek Pączek
INTRODUCTION    Antibodies against donor`s human leukocyte antigens (HLA) play a significant role in the pathogenesis of antibody mediated rejection, although their role during the late post-transplant period is unknown. A non-HLA polymorphic antigenic system like major histocompatibility class I chain-related antigen A (MICA) might be another target for antibody responses involved in rejection. OBJECTIVES    We conducted a 7-year prospective study to determine the effect of positivity for anti-HLA and anti-MICA antibodies on kidney graft survival...
February 15, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28197392/p38-mapk-differentially-controls-nk-activating-ligands-at-transcriptional-and-post-transcriptional-level-on-multiple-myeloma-cells
#20
Alessandra Soriani, Cristiana Borrelli, Biancamaria Ricci, Rosa Molfetta, Alessandra Zingoni, Cinzia Fionda, Silvia Carnevale, Maria Pia Abruzzese, Maria Teresa Petrucci, Maria Rosaria Ricciardi, Giuseppe La Regina, Erica Di Cesare, Patrizia Lavia, Romano Silvestri, Rossella Paolini, Marco Cippitelli, Angela Santoni
The mechanisms that regulate the expression of the NKG2D and DNAM-1 activating ligands are only partially known, but it is now widely established that their expression is finely regulated at transcriptional, post-transcriptional and post-translational level, and involve numerous stress pathways depending on the type of ligand, stressor, and cell context. We show that treatment of Multiple Myeloma (MM) cells with sub-lethal doses of Vincristine (VCR), an anticancer drug that inhibits the assembly of microtubules, stimulates the expression of NKG2D and DNAM-1 activating ligands, rendering these cells more susceptible to NK cell-mediated killing...
2017: Oncoimmunology
keyword
keyword
18465
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"