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https://www.readbyqxmd.com/read/28806788/chronic-unpredictable-stress-exacerbates-surgery-induced-sickness-behavior-and-neuroinflammatory-responses-via-glucocorticoids-secretion-in-adult-rats
#1
Na Wang, Hong Ma, Zhe Li, Yalei Gao, Xuezhao Cao, Yanhua Jiang, Yongjian Zhou, Sidan Liu
METHODS: Sprague-Dawley adult male rats (12-14 weeks old) were exposed to 14-day CUS and then subjected to partial hepatectomy 24 h after the last stress session. The rats were pretreated with an antagonist of the glucocorticoids (GCs) receptor RU486 (30 mg/kg, i.p.) 1 h prior to stress exposure. The behavioral changes were evaluated with open field test and elevated plus-maze test. The hippocampal cytokines interleukin (IL)-1β and IL-6 were measured on postoperative days 1, 3 and 7...
2017: PloS One
https://www.readbyqxmd.com/read/28792282/anti-inflammation-conferred-by-stimulation-of-cd200r1-via-dok1-pathway-in-rat-microglia-after-germinal-matrix-hemorrhage
#2
Zhanhui Feng, Lan Ye, Damon Klebe, Yan Ding, Zhen-Ni Guo, Jerry J Flores, Cheng Yin, Jiping Tang, John H Zhang
CD200 has been reported to be neuroprotective in neurodegenerative diseases. However, the potential protective effects of CD200 in germinal matrix hemorrhage (GMH) have not been investigated. We examined the anti-inflammatory mechanisms of CD200 after GMH. A total of 167 seven-day-old rat pups were used. The time-dependent effect of GMH on the levels of CD200 and CD200 Receptor 1 (CD200R1) was evaluated by western blot. CD200R1 was localized by immunohistochemistry. The short-term (24 h) and long-term (28 days) outcomes were evaluated after CD200 fusion protein (CD200Fc) treatment by neurobehavioral assessment...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28752619/spectrum-and-immunophenotyping-of-653-patients-with-b-cell-chronic-lymphoproliferative-disorders-in-china-a-single-centre-analysis
#3
Yi Miao, Lei Cao, Qian Sun, Xiao-Tong Li, Yan Wang, Chun Qiao, Li Wang, Rong Wang, Hai-Rong Qiu, Wei Xu, Jian-Yong Li, Yu-Jie Wu, Lei Fan
The incidence of B-cell chronic lymphoproliferative disorders (B-CLPDs) is significantly lower in China than that in western countries. There have been studies involving small cohorts with conflicting results regarding the spectrum of B-CLPDs in China, and the types and immunophenotyping of B-CLPDs in China remain largely unexplored. We conducted a retrospective analysis of 653 cases of B-CLPDs seen in our centre from 2011 to 2015. Four-colour flow cytometry was used to determine the expression of each immunological marker, and the diagnostic values of the immunological markers were also investigated...
July 28, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28736613/cd200-modulates-macrophage-cytokine-secretion-and-phagocytosis-in-response-to-poly-lactic-co-glycolic-acid-microparticles-and-films
#4
E Y Chen, S Chu, L Gov, Y K Kim, M B Lodoen, A J Tenner, W F Liu
Biocompatibility is a major concern for developing biomaterials used in medical devices, tissue engineering and drug delivery. Poly(lactic-co-glycolic acid) (PLGA) is one of the most widely used biodegradable materials, yet still triggers a significant foreign body response that impairs healing. Immune cells including macrophages respond to the implanted biomaterial and mediate the host response, which can eventually lead to device failure. Previously in our laboratory, we found that CD200, an immunomodulatory protein, suppressed macrophage inflammatory activation in vitro and reduced local immune cell infiltration around a biomaterial implant...
February 28, 2017: Journal of Materials Chemistry. B, Materials for Biology and Medicine
https://www.readbyqxmd.com/read/28725654/stem-cells-from-human-hair-follicles-first-mechanical-isolation-for-immediate-autologous-clinical-use-in-androgenetic-alopecia-and-hair-loss
#5
Pietro Gentile, Maria G Scioli, Alessandra Bielli, Augusto Orlandi, Valerio Cervelli
BACKGROUND: Hair follicles are known to contain a well-characterized niche for adult stem cells: the bulge, which contains epithelial and melanocytic stem cells. Stem cells in the hair bulge, a clearly demarcated structure within the lower permanent portion of hair follicles, can generate the interfollicular epidermis, hair follicle structures, and sebaceous glands. The bulge epithelial stem cells can also reconstitute in an artificial in vivo system to a new hair follicle. METHODS: In this study, we have developed a new method to isolate human adult stem cells by mechanical centrifugation of punch biopsy from human hair follicles without culture condition...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28714866/ibrutinib-treatment-improves-t-cell-number-and-function-in-cll-patients
#6
Meixiao Long, Kyle Beckwith, Priscilla Do, Bethany L Mundy, Amber Gordon, Amy M Lehman, Kami J Maddocks, Carolyn Cheney, Jeffrey A Jones, Joseph M Flynn, Leslie A Andritsos, Farrukh Awan, Joseph A Fraietta, Carl H June, Marcela V Maus, Jennifer A Woyach, Michael A Caligiuri, Amy J Johnson, Natarajan Muthusamy, John C Byrd
BACKGROUND: Ibrutinib has been shown to have immunomodulatory effects by inhibiting Bruton's tyrosine kinase (BTK) and IL-2-inducible T cell kinase (ITK). The relative importance of inhibiting these 2 kinases has not been examined despite its relevance to immune-based therapies. METHODS: Peripheral blood mononuclear cells from chronic lymphocytic leukemia (CLL) patients on clinical trials of ibrutinib (BTK/ITK inhibitor; n = 19) or acalabrutinib (selective BTK inhibitor; n = 13) were collected serially...
August 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28713070/the-role-of-cd200-and-cd43-expression-in-differential-diagnosis-between-chronic-lymphocytic-leukemia-and-mantle-cell-lymphoma
#7
Mesude Falay, Berna Afacan Öztürk, Kürşad Güneş, Yasin Kalpakçı, Simten Dağdaş, Funda Ceran, Gülsüm Özet
OBJECTIVE: Atypical CLL is most frequently confused with mantle cell lymphoma (MCL). Several markers may contribute to the diagnosis of CLL. However, there is no consensus on which markers are needed to be used in the flowcytometry for the diagnosis of CLL. The aim of the present study was to investigate the role of CD43 and CD200 markers in the differential diagnosis between CLL and MCL. MATERIALS AND METHODS: To address this issue, 339 consecutive patients with CLL and MCL evaluation of CD43, and CD200 expressions were included in the flowcytometry LPD panel but not in the Matutes scoring system...
July 17, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28664397/peripheral-blood-monocyte-tolerance-alleviates-intraperitoneal-lipopolysaccharides-induced-neuroinflammation-in-rats-via-upregulating-the-cd200r-expression
#8
Liping Xia, Xin Xie, Yang Liu, Xiaoguang Luo
Neuroinflammation is an important pathogenesis of Parkinson's disease (PD). The peripheral immune system could produce profound effects on central immunities. The peripheral blood monocyte (PBM) immune tolerance is the refractoriness of immune system to avoid overactive peripheral inflammation. The PBM are also actively involved in central immune activities. There is evidence implying the probable failure of immune tolerance and impairment of CD200/CD200R signaling in PD patients. Here we aimed to explore the effects of PBM tolerance in peripheral LPS-induced neuroinflammation as well as the specific roles of CD200/CD200R pathway in PBM tolerance...
June 29, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28618016/abcg2-and-cd200-define-patients-at-high-risk-of-relapse-in-enl-favorable-subgroup-of-aml
#9
Mario Tiribelli, Antonella Geromin, Margherita Cavallin, Sara Di Giusto, Erica Simeone, Renato Fanin, Daniela Damiani
OBJECTIVE: overexpression of ABCG2 and CD200 have been independently associated with poor outcome in acute myeloid leukemia (AML). However, no data are available on the role of these two factors in patients with core binding factor (CBF) positive or FLT3-negative / NPM1-mutated cytogenetically normal (CN) AML. METHODS: we analyzed 65 adult AML patients with CBF+ (n=16) or FLT3-/NPM1+ CN (n=49), evaluating clinical and biological factors associated with complete remission attainment, leukemia-free survival (LFS) and overall survival (OS)...
June 15, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28602725/il15ra-is-required-for-osteoblast-function-and-bone-mineralization
#10
Emanuele Loro, Girish Ramaswamy, Abhishek Chandra, Wei-Ju Tseng, Manoj K Mishra, Eileen M Shore, Tejvir S Khurana
Interleukin-15 receptor alpha (IL15RA) is an important component of interleukin-15 (IL15) pro-inflammatory signaling. In addition, IL15 and IL15RA are present in the circulation and are detected in a variety of tissues where they influence physiological functions such as muscle contractility and overall metabolism. In the skeletal system, IL15RA was previously shown to be important for osteoclastogenesis. Little is known, however, about its role in osteoblast function and bone mineralization. In this study, we evaluated bone structural and mechanical properties of an Il15ra whole-body knockout mouse (Il15ra(-/-)) and used in vitro and bioinformatic analyses to understand the role IL15/IL15RA signaling on osteoblast function...
June 6, 2017: Bone
https://www.readbyqxmd.com/read/28587354/th1-th2-pb-balance-and-cd200-expression-of-patients-with-active-severe-alopecia-areata
#11
Xinhua Ma, Shisheng Chen, Wanwan Jin, Yu Gao
Th1/Th2 peripheral blood balance and CD200 expression in patients with severe alopecia areata (SAA) in the active stage were investigated. Fifty patients with active SAA, 50 patients with stable SAA and 50 healthy controls were continuously selected and expression of Th1/Th2 of peripheral T lymphocytes, and peripheral B lymphocytes was detected by flow cytometry; RT-PCR was used to detect the expression of the PBMC CD200 mRNA and the expression of CD200 in hair follicles of alopecia area was detected by immunohistochemically staining; ELISA was used to detect expression levels of serum LFN-γ and serum interleukin (IL)-10...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28583890/cd200-selectively-upregulates-prostaglandin-e2-and-d2-synthesis-in-lps-treated-bone-marrow-derived-macrophages
#12
Katharina Kern, Sandra Pierre, Yannick Schreiber, Carlo Angioni, Dominique Thomas, Nerea Ferreirós, Gerd Geisslinger, Klaus Scholich
The CD200/CD200R signalling pathway downregulates the synthesis of proinflammatory mediators and induces the synthesis of antiinflammatory mediators in macrophages and microglia. However, very little is known about the effect of this immunosuppressive pathway on the synthesis of lipid mediators. Therefore, we determined the synthesis of 35 lipids spanning 5 different lipid families in bone marrow-derived macrophages, which were treated with interleukin (IL) 4, IL10, lipopolysaccharide (LPS), or interferon γ (IFNγ) in absence and presence of CD200...
June 2, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28575142/flow-cytometric-patterns-of-cd200-and-cd1d-expression-distinguish-cd10-negative-cd5-negative-mature-b-cell-lymphoproliferative-disorders
#13
Emily Mason, Olga Pozdnyakova, Betty Li, Graham Dudley, David M Dorfman
Objectives: The importance of distinguishing mature B-cell lymphoproliferative disorders (B-LPDs) is highlighted by the distinct treatments used for and varying prognoses seen in association with these different diseases. Immunophenotyping allows for accurate and efficient differentiation of many B-LPDs. Recently, we showed that CD200 is highly expressed in hairy cell leukemia (HCL) but not in marginal zone lymphoma (MZL), lymphoplasmacytic lymphoma (LPL), or hairy cell leukemia-variant (HCL-v)...
June 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28573328/human-cd200-suppresses-macrophage-mediated-xenogeneic-cytotoxicity-and-phagocytosis
#14
Rieko Sakai, Akira Maeda, Thuy-Vy Choi, Pei-Chi Lo, Patmika Jiaravuthiasan, Afifah Mod Shabri, Han-Tang Wang, Rei Matsuura, Tasuku Kodama, Hiroshi Eguchi, Hiroomi Okuyama, Shuji Miyagawa
PURPOSE: Various strategies, such as the generation of alpha-1,3-galactosyltransferase knocked-out pigs and CD55 transgenic pigs, have been investigated to inhibit pig to human xenogeneic rejection. Our aim is to develop strategies to overcome the hurdle of not only hyper acute rejection, but also that of cellular xenogeneic rejection (CXR). Although macrophages have been well known to play a critical role in CXR, monocyte/macrophage-mediated xenogeneic rejection has not been well studied...
June 1, 2017: Surgery Today
https://www.readbyqxmd.com/read/28522962/alterations-in-cd200-cd200r1-system-during-eae-already-manifest-at-presymptomatic-stages
#15
Tony Valente, Joan Serratosa, Unai Perpiñá, Josep Saura, Carme Solà
In the brain of patients with multiple sclerosis, activated microglia/macrophages appear in active lesions and in normal appearing white matter. However, whether they play a beneficial or a detrimental role in the development of the pathology remains a controversial issue. The production of pro-inflammatory molecules by chronically activated microglial cells is suggested to contribute to the progression of neurodegenerative processes in neurological disease. In the healthy brain, neurons control glial activation through several inhibitory mechanisms, such as the CD200-CD200R1 interaction...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28509522/construction-of-a-three-dimensional-in-vitro-skin-model-on-polycaprolactone-fibers
#16
Qi Liu, Ru-Zhi Zhang, Bin Xu
BACKGROUND: To observe the morphological characteristics and the biological properties of human epidermal cells when cultured at an air-liquid interface in polycaprolactone (PCL) fibers as a three-dimensional scaffold for tissue engineering. METHODS: In this study, the melanocytes and keratinocytes were obtained from human scalp skin, seeded onto a PCL film, and cocultured for 2 weeks to construct a three-dimensional (3D) skin model. The cells were then characterized by hematoxylin and eosin (H&E) staining, by immunohistochemical staining with antibodies to cytokeratin 15 (CK15), Ki-67, CD34, CD200 and HMB45 and by transmission electron microscopy...
May 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28491094/immunoprofiling-of-adult-derived-human-liver-stem-progenitor-cells-impact-of-hepatogenic-differentiation-and-inflammation
#17
Hoda El-Kehdy, Camillo Sargiacomo, Mohammad Fayyad-Kazan, Hussein Fayyad-Kazan, Catherine Lombard, Laurence Lagneaux, Etienne Sokal, Mehdi Najar, Mustapha Najimi
Adult-derived human liver stem/progenitor cells (ADHLSCs) are, nowadays, developed as therapeutic medicinal product for the treatment of liver defects. In this study, the impact of hepatogenic differentiation and inflammation priming on the ADHLSCs' immune profile was assessed in vitro and compared to that of mature hepatocytes. The constitutive immunological profile of ADHLSCs was greatly different from that of hepatocytes. Differences in the expression of the stromal markers CD90 and CD105, adhesion molecules CD44 and CD49e, immunoregulatory molecules CD73 and HO-1, and NK ligands CD112 and CD155 were noted...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28429795/cd200-positive-cancer-associated-fibroblasts-augment-the-sensitivity-of-epidermal-growth-factor-receptor-mutation-positive-lung-adenocarcinomas-to-egfr-tyrosine-kinase-inhibitors
#18
Masayuki Ishibashi, Shinya Neri, Hiroko Hashimoto, Tomoyuki Miyashita, Tatsuya Yoshida, Yuka Nakamura, Hibiki Udagawa, Keisuke Kirita, Shingo Matsumoto, Shigeki Umemura, Kiyotaka Yoh, Seiji Niho, Masahiro Tsuboi, Kenkichi Masutomi, Koichi Goto, Atsushi Ochiai, Genichiro Ishii
Cancer associated fibroblasts (CAFs) play important roles in the chemotherapeutic process, especially through influencing the resistance of tumor cells to molecular targeted therapy. Here we report the existence of a special subpopulation of patient-specific-CAFs that augment the sensitivity of EGFR gene mutation-positive lung cancer to the EGFR-tyrosine kinase inhibitor (EGFR-TKI), gefitinib. When cocultured with EGFR mutation positive lung cancer cells, these CAFs increased the apoptic effect of gefitinib on cancer cells, whereas, in the absence of gefitinib, they did not affect cancer cell viability...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28422443/role-of-cd200-in-differential-diagnosis-of-mature-b-cell-neoplasm
#19
K Rahman, P Kumar, R Gupta, M K Singh, S Nityanand
INTRODUCTION: CD 200 is a type I immunoglobulin super family membrane glycoprotein, which is expressed in various mature B-cell neoplasm (MBN). This study aimed at analyzing the expression pattern of CD200 by flow cytometry immunophenotyping (FCI) and to evaluate its utility in narrowing down the differential diagnosis of MBN, particularly in low-grade lymphomas. METHODS: A total of 160 samples were evaluated by FCI over a period of 2 years (July 2014-June 2016), by a panel of antibodies including CD200...
April 19, 2017: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28414034/age-exacerbates-surgery-induced-cognitive-impairment-and-neuroinflammation-in-sprague-dawley-rats-the-role-of-il-4
#20
Zhe Li, Fang Liu, Hong Ma, Paul F White, Roya Yumul, Yanhua Jiang, Na Wang, Xuezhao Cao
Age is the most prominent risk factor for the development of postoperative cognitive dysfunction. This study investigated the potential role of anti-inflammatory interleukin (IL)-4 in age-related differences of surgery-induced cognitive deficits and neuroinflammatory responses. Both adult and aged Sprague-Dawley male rats were subjected to partial hepatectomy or partial hepatectomy with a cisterna magna infusion of IL-4. On postoperative days 1, 3, and 7, the rats were subjected to a reversed Morris water maze test...
April 14, 2017: Brain Research
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