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https://www.readbyqxmd.com/read/28088699/procyanidin-b2-gallates-inhibit-ifn-%C3%AE-and-il-17-production-in-t-cells-by-suppressing-t-bet-and-ror%C3%AE-t-expression
#1
Sachi Tanaka, Kanon Furuya, Kana Yamamoto, Kazuki Yamada, Mikihiro Ichikawa, Manato Suda, Hidefumi Makabe
Procyanidins are widely found in plants and have anti-inflammatory activities. Procyanidin B2 (PCB2) inhibits production of proinflammatory cytokines in macrophages. However, there has been no study that has attempted to determine the effects of PCB2 gallates on T cell functions. In the present study, murine splenocytes were isolated and treated with PCB2 or PCB2 gallates in the presence of an anti-CD3 monoclonal antibody (mAb). PCB2 gallates, but not PCB2, inhibited proliferation and T cell activation of splenocytes after stimulation with the anti-CD3 mAb...
January 12, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28075526/cetuximab-strongly-enhances-immune-cell-infiltration-into-liver-metastatic-sites-in-colorectal-cancer
#2
Yuka Inoue, Shoichi Hazama, Nobuaki Suzuki, Yukio Tokumitsu, Shinsuke Kanekiyo, Shinobu Tomochika, Ryouichi Tsunedomi, Yoshihiro Tokuhisa, Michihisa Iida, Kazuhiko Sakamoto, Shigeru Takeda, Tomio Ueno, Shigefumi Yoshino, Hiroaki Nagano
Cetuximab has activity against colorectal cancers. Recent studies demonstrated that cetuximab induces antibody-dependent cell-mediated cytotoxicity via immune cells, and a new immune-related mechanism of inducing immunogenic cell death. This study aimed to evaluate the immune responses induced by cetuximab in tumor microenvironments at liver metastasis sites of metastatic colorectal cancer patients. We assessed immune cell infiltration in the liver metastatic sites of 53 colorectal cancer patients. These patients were divided into three groups according to the treatment before operation: chemotherapy with cetuximab, chemotherapy without cetuximab, and no chemotherapy...
January 11, 2017: Cancer Science
https://www.readbyqxmd.com/read/28075428/balanced-secretion-of-anti-cea-x-anti-cd3-diabody-chains-using-the-2a-self-cleaving-peptide-maximizes-diabody-assembly-and-tumor-specific-cytotoxicity
#3
K Mølgaard, M Compte, N Nuñez-Prado, S L Harwood, L Sanz, L Alvarez-Vallina
Adoptive transfer of genetically engineered human cells secreting bispecific T cell engagers has shown encouraging therapeutic effects in preclinical models of cancer. However, reducing the toxicity and improving the effectiveness of this emerging immunotherapeutic strategy will be critical to its successful application. We have demonstrated that for gene-based bispecific antibody strategies, two-chain diabodies have a better safety profile than single-chain tandem scFvs, because their reduced tendency to form aggregates reduces the risk of inducing antigen-independent T cell activation...
January 11, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28073833/exosomal-mir-142-3p-is-increased-during-cardiac-allograft-rejection-and-augments-vascular-permeability-through-down-regulation-of-endothelial-rab11fip2-expression
#4
Ihdina Sukma Dewi, Selvi Celik, Anna Karlsson, Zsuzsanna Hollander, Karen Lam, Janet-Wilson McManus, Scott Tebbutt, Raymond Ng, Paul Keown, Robert McMaster, Bruce McManus, Jenny Öhman, Olof Gidlöf
AIMS: Exosome-mediated microRNA transfer is a recently discovered mode of cell-to-cell communication, in which microRNAs act as paracrine molecules, exerting their regulatory effects in recipient cells. T cells and endothelial cells are two main players in the mechanism of acute cellular cardiac rejection. The aim of this study was to investigate the role of exosomal microRNAs in the crosstalk between T cells and endothelial cells and its implications for the molecular mechanisms that drive acute cellular rejection in heart transplantation...
January 10, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28072956/-clinical-and-immunological-analysis-of-the-patient-with-autoimmunity-due-to-germline-stat3-gain-of-function-mutation
#5
Y Ding, Y Zhang, Y P Wang, H Y Zhao, X M Chen, X H Xue, X M Bai, Y F An, Z Y Zhang, X M Tang, X D Zhao
Objective: To investigate the clinical and immunological laboratory features and gene mutation in a female patient who carried a germline gain-of-function mutation in STAT3. Method: A patient with lymphadenopathy and pancytopenia, visited the Department of Rheumatology and Immunology of Children's Hospital of Chongqing Medical University in May 2016. The clinical and laboratory characteristics, results of immunophenotyping and exome sequencing were analyzed retrospectively and related literature was reviewed...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28070761/effect-of-long-term-simulated-microgravity-on-immune-system-and-lung-tissues-in-rhesus-macaque
#6
Yang Chen, Chongyu Xu, Ping Wang, Yiling Cai, Huasong Ma
We evaluated different lymphocyte populations and levels of plasma cytokines in peripheral blood as well as inflammatory infiltration and expressions of cytokines in lung tissues derived from macaque under long-term stimulated microgravity through being suspended in an antiorthostatic position so as to identify relevant immune parameters and to understand potential mechanisms of lung injury. Fifteen healthy male rhesus macaques were randomly divided into groups 1 (control, n = 5), groups 2 (head-down tilting for 6 weeks, n = 5), and groups 3 (head-down tilting for 6 weeks and recovery for 4 weeks, n = 5)...
January 9, 2017: Inflammation
https://www.readbyqxmd.com/read/28065940/cd24-aggravates-acute-liver-injury-in-autoimmune-hepatitis-by-promoting-ifn-%C3%AE-production-by-cd4-t-cells
#7
Chenhong Zheng, Shulei Yin, Yang Yang, Yizhi Yu, Xiaohua Xie
The T-cell-mediated immune response is implicated in many clinical hepatic injuries, such as autoimmune hepatitis and acute virus hepatitis. CD24 is widely expressed by different immune cells and plays an important role in the pathogenesis of many autoimmune diseases. However, the role of CD24 in T-cell-mediated liver injury has not been elucidated until now. Here we showed that CD24 deficiency protects mice from concanavalin A (ConA)-induced fulminant liver injury by reducing serum interferon-γ (IFN-γ) levels...
January 9, 2017: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/28065580/fatigue-favors-in-vitro-th1-and-th17-like-cell-expansion-and-reduces-corticoid-sensitivity-in-ms-patients
#8
Hélcio Alvarenga-Filho, Marisa Salles, Joana Hygino, Thais B Ferreira, Priscila M Sacramento, Clarice Monteiro, Claudia Cristina F Vasconcelos, Regina Maria Papais Alvarenga, Cleonice A M Bento
Fatigue is a common "ghost" symptom in patients with multiple sclerosis (MS), an autoimmune disease mediated by T cells that target myelin antigens of the central nervous system. As fatigue has been associated with inflammatory states, its occurrence may negatively impact MS progression. The aim of this study was to evaluate the impact of fatigue on the cytokine profile of patients with relapsing-remitting (RR) MS. For our study, blood were collected from MS patients in clinical remission phase with (n=15) and without (n=15) fatigue...
December 30, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28065449/a-specific-immune-tolerance-toward-offspring-cells-is-to-exist-after-the-mother-lymphocyte-infusion
#9
Haizhou Xing, Shiqin Liu, Xue Chen, Fang Fang, Xueqiang Wu, Ping Zhu
PURPOSE: To examine immune tolerance between maternal lymphocytes and offspring tissue after a donor lymphocyte infusion. METHODS: Mouse models were established by mating female BALB/c mice with male C57BL mice. Splenic lymphocytes from donors of different genetic backgrounds were labeled with carboxyfluorescein succinimidyl ester (CFSE), and 1×10(7) of the labeled cells were intravenously injected into a recipient. At 6h, 24h, 72h and 120h after the infusion, mononuclear cells in recipient spleen, liver, thymus, lymph nodes, and peripheral blood were collected...
December 26, 2016: Immunobiology
https://www.readbyqxmd.com/read/28065217/early-enteral-combined-with-parenteral-nutrition-treatment-for-severe-traumatic-brain-injury-effects-on-immune-function-nutritional-status-and-outcomes-%C3%A2
#10
Fan Ming-Chao, Wang Qiao-Ling, Fang Wei, Jiang Yun-Xia, Li Lian-di, Sun Peng, Wang Zhi-Hong
Objective To compare the conjoint effect of enteral nutrition (EN) and parenteral nutrition (PN) with single EN or PN on immune function, nutritional status, complications and clinical outcomes of patients with severe traumatic brain injury (STBI). Methods A prospective randomized control trial was carried out from January 2009 to May 2012 in Neurological Intensive Care Unit (NICU). Patients of STBI who met the enrolment criteria (Glasgow Coma Scale score 6~8; Nutritional Risk Screening ≥3) were randomly divided into 3 groups and were admi- nistrated EN, PN or EN+PN treatments respectively...
November 20, 2016: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/28063704/immunization-with-salmonella-enteritidis-secreting-mucosal-adjuvant-labile-toxin-confers-protection-against-wild-type-challenge-via-augmentation-of-cd3-cd4-t-cell-proliferation-and-enhancement-of-ifn-%C3%AE-il-6-and-il-10-expressions-in-chicken
#11
Jonathan Lalsiamthara, John Hwa Lee
The protective efficacy and immunological profiles of chickens immunized with an attenuated Salmonella Enteritidis (SE) constitutively secreting double mutant heat labile enterotoxin (dmLT) were investigated. The dmLT is a detoxified variant of Escherichia coli heat labile toxin and is a potent mucosal adjuvant capable of inducing both humoral and cell-mediated immunity. In this study, four-week-old chickens were inoculated with SE-dmLT strain JOL1641, parental SE strain JOL1087 or phosphate buffered saline control...
January 4, 2017: Vaccine
https://www.readbyqxmd.com/read/28062921/targeted-deletion-of-traf2-allows-immunosuppression-free-islet-allograft-survival-in-mice
#12
Jeanette E Villanueva, Stacey N Walters, Mitsuru Saito, Elisabeth K Malle, Nathan W Zammit, Katherine A Watson, Robert Brink, Nicole L La Gruta, Stephen I Alexander, Shane T Grey
AIMS/HYPOTHESIS: Administration of anti-CD40 ligand (CD40L) antibodies has been reported to allow long-term islet allograft survival in non-human primates without the need for exogenous immunosuppression. However, the use of anti-CD40L antibodies was associated with thromboembolic complications. Targeting downstream intracellular components shared between CD40 and other TNF family co-stimulatory molecules could bypass these complications. TNF receptor associated factor 2 (TRAF2) integrates multiple TNF receptor family signalling pathways that are critical for T cell activation and may be a central node of alloimmune responses...
January 6, 2017: Diabetologia
https://www.readbyqxmd.com/read/28061450/th1high-in-tumor-microenvironment-is-an-indicator-of-poor-prognosis-for-patients-with-nsclc
#13
Huang Jian, Shen Fangrong, Huang Haitao, Ling Chunhua, Zhang Guangbo
CD4+Th subsets play an important role in tumor progression but their expression characteristics and clinical significance in human tumor microenvironment remains unclear. In this study, we aim to analyze the expression and clinical significance of tissue-infiltrating Th1, Th2 and Th17 in lung cancer by flow cytometry. We found that the frequency of CD3+CD4+IFN-γ+Th1 in tumor nest was significantly lower than that in tumor boundary, adjacent normal lung tissue or corresponding lymph node tissue; the frequency of CD3+CD4+IL-4+Th2 in tumor nest was significantly higher than that in tumor boundary, adjacent normal lung tissue or corresponding lymph node tissue; the frequency of CD3+CD4+IL-17+Th17 in tumor nest was significantly lower than that in tumor boundary, but not adjacent normal tissue or corresponding lymph node tissue...
January 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28061324/oral-corticosterone-administration-reduces-insulitis-but-promotes-insulin-resistance-and-hyperglycemia-in-male-nonobese-diabetic-mice
#14
Susan J Burke, Heidi M Batdorf, Adrianna E Eder, Michael D Karlstad, David H Burk, Robert C Noland, Z Elizabeth Floyd, J Jason Collier
Steroid-induced diabetes is the most common form of drug-induced hyperglycemia. Therefore, metabolic and immunological alterations associated with chronic oral corticosterone were investigated using male nonobese diabetic mice. Three weeks after corticosterone delivery, there was reduced sensitivity to insulin action measured by insulin tolerance test. Body composition measurements revealed increased fat mass and decreased lean mass. Overt hyperglycemia (>250 mg/dL) manifested 6 weeks after the start of glucocorticoid administration, whereas 100% of the mice receiving the vehicle control remained normoglycemic...
January 4, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28060510/coordination-dependent-spectroscopic-signatures-of-divalent-metal-ion-binding-to-carboxylate-head-groups-h2-and-he-tagged-vibrational-spectra-of-m-2-%C3%A2-rco2%C3%A2-m-mg-and-ca-r-cd3-cd2cd3-complexes
#15
Joseph W DePalma, Patrick J Kelleher, Laís C Tavares, Mark A Johnson
We explore the intramolecular distortions present in divalent metal ion-carboxylate ion pairs using vibrational spectroscopy of the cryogenically cooled, mass-selected species isolated in the gas phase. The spectral signatures of the C-O stretching modes are identified using the perdeutero isotopologues of the acetate and propionate anions in order to avoid congestion arising from the CH2 fundamentals. Both Ca(2+) and Mg(2+) are observed to bind in a symmetrical, so-called "bidentate" arrangement to the -CO2¯ group...
January 6, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28060369/virus-associated-neoplasms-of-the-nasopharynx-and-sinonasal-tract-diagnostic-problems
#16
John Kc Chan
A significant fraction of nasopharyngeal and sinonasal tumors are associated with Epstein-Barr virus (EBV) or human papillomavirus (HPV). Nasopharyngeal carcinoma (NPC) and extranodal NK/T-cell lymphoma harbor EBV in practically all cases, although a small proportion of cases of the former harbor HPV. Sinonasal inverted papillomas harbor HPV in about 25% of cases. Sinonasal squamous cell carcinomas harbor transcriptionally active HPV in about 20% of cases, and limited data suggest that this subset has a better prognosis than the HPV-negative subset...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28058672/neuroprotective-effects-of-intravenous-immunoglobulin-are-mediated-through-inhibition-of-complement-activation-and-apoptosis-in-a-rat-model-of-sepsis
#17
Figen Esen, Gunseli Orhun, Perihan Ergin Ozcan, Evren Senturk, Melike Kucukerden, Murat Giris, Ugur Akcan, Canan Ugur Yilmaz, Nurcan Orhan, Nadir Arican, Mehmet Kaya, Sema Bilgic Gazioglu, Erdem Tuzun
BACKGROUND: Intravenous (IV) immunoglobulin (Ig) treatment is known to alleviate behavioral deficits and increase survival in the experimentally induced model of sepsis. To delineate the mechanisms by which IVIg treatment prevents neuronal dysfunction, an array of immunological and apoptosis markers was investigated. METHODS: Sepsis was induced by cecal ligation perforation (CLP) in rats. The animals were divided into five groups: sham, control, CLP + saline, CLP + immunoglobulin G (IgG) (250 mg/kg, iv), and CLP + immunoglobulins enriched with immunoglobulin M (IgGAM) (250 mg/kg, iv)...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28058099/adenomatoid-tumor-of-the-adrenal-gland-in-young-woman-from-clinical-and-radiological-to-pathological-study
#18
Brankica Krstevska, Sasha Jovanovska Mishevska, Rubens Jovanovic
Adenomatoid tumors are neoplasms of mesothelial origin, usually occurring in the male and female genital tracts. Extragenital localization sites such as adrenal glands are rare but have been reported. When found in the adrenals, they represent great clinical, radiological and pathological diagnostic challenge, with wide range of differential diagnoses to be considered. We present a case of a 30 years old female, with incidental ultrasound finding of unilateral tumor in the right adrenal gland. Multi slices CT scan was of value in localizing this tumor, but not in the precise diagnosis...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28056922/herbal-formula-xian-fang-huo-ming-yin-regulates-differentiation-of-lymphocytes-and-production-of-pro-inflammatory-cytokines-in-collagen-induced-arthritis-mice
#19
Jinyu Li, Yi Wei, Xue Li, Dashuai Zhu, Bo Nie, Jingwei Zhou, Lixia Lou, Bin Dong, Aiming Wu, Yongzhe Che, Meng Chen, Lingqun Zhu, Mingwei Mu, Limin Chai
BACKGROUND: Xian-Fang-Huo-Ming-Yin (XFHM), a traditional herbal formula, has been used to treat sores and carbuncles for hundreds of years in Asia. Nowadays, its clinical effects in treatment of rheumatoid arthritis (RA) have been validated. In this study, we want to study its possible molecular mechanisms of regulating the differentiation of lymphocytes and production of pro-inflammatory cytokines in collagen-induced arthritis (CIA) mice for RA treatment. METHODS: A high performance liquid chromatography-electrospray ionization/mass spectrometer (HPLC-ESI/MS(n)) system was used to analyze the constituents of XFHM granules...
January 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28056337/marked-enteropathy-in-an-accelerated-macaque-model-of-aids
#20
Joshua D Croteau, Elizabeth L Engle, Suzanne E Queen, Erin N Shirk, M Christine Zink
Enteropathy in HIV infection is not eliminated with combination antiretroviral therapy and is possibly linked to microbial translocation. We used a rapidly progressing SIV/pigtailed macaque model of HIV to examine enteropathy and microbial translocation. Histologic evidence of intestinal disease was observed in only half of infected macaques during late-stage infection (LSI). Combination antiretroviral therapy initiated during acute infection prevented intestinal disease. In the ileum and colon, enteropathy was associated with increased caspase-3 staining, decreased CD3(+) T cells, and increased SIV-infected cells...
January 2, 2017: American Journal of Pathology
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