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https://www.readbyqxmd.com/read/28299632/transgenic-expression-of-a-canonical-wnt-inhibitor-kallistatin-is-associated-with-decreased-circulating-cd19-b-lymphocytes-in-the-peripheral-blood
#1
Jeffrey D McBride, Xiaochen Liu, William L Berry, Ralf Janknecht, Rui Cheng, Kelu Zhou, Evangelos V Badiavas, Jian-Xing Ma
Members of the family of serine proteinase inhibitors, such as kallistatin, have been shown to inhibit canonical Wnt-TCF/LEF-β-catenin signaling via their interactions with the Wnt co-receptor LRP6. Yet the effects of transgenic overexpression of anti-Wnt serpins on hematopoiesis and lymphopoiesis are not well known. We studied the effects of human kallistatin (SERPINA4) on Wnt reporter activity in various cell types throughout the hematopoietic system and associated impacts on circulating white blood cell profiles...
March 15, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28296255/breg-dependent-islet-transplant-tolerance-is-also-nk-cell-dependent
#2
Christian Schuetz, Kang Mi Lee, Ryan Scott, Lisa Kojima, Laura Washburn, Liye Liu, Wei-Hui Liu, Haley Tector, Ji Lei, Heidi Yeh, James Kim, James F Markmann
Immunologic tolerance to solid organ and islet cell grafts has been achieved in various rodent models using antibodies directed at CD45RB and Tim-1. We have shown that this form of tolerance depends on regulatory B-cells. To elucidate further the mechanism by which Bregs induce tolerance we investigated the requirement of NK and NKT cells in this model. To do so, hyperglycemic B6, μMT, Beige or CD1d(-/-) mice received Balb/c islet grafts and treatment with the tolerance inducing regimen consisting of anti-CD45RB and anti -TIM1...
March 10, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28268237/effect-of-a-bicyclic-pyrimidine-derivative-krp-103-a-novel-selective-tachykinin-nk1-receptor-antagonist-on-bladder-function-in-guinea-pigs
#3
Asao Tanioka, Takashi Deguchi
We evaluated the pharmacological characteristics of KRP-103, chemically named as ((2-(4-acetylpiperazin-1-yl)-6-[3,5-bis(trifluorometheyl)-phenylmethyl]-4- (2-methylphenyl)-6,7,8,9-tetrahydro-5H-pyrimido[4,5-b][1,5]oxazocin-5-one), and its effects on lower urinary tract function in guinea pigs. In radioligand binding assay, KRP-103 showed higher selectivity for human NK1 receptor (hNK1R) than for human NK2 receptor (hNK2R) and human NK3 receptor (hNK3R) (Ki for hNK1R, hNK2R and hNK3R=0.126 nM, > 10 000 nM and > 10 000 nM)...
March 7, 2017: Drug Research
https://www.readbyqxmd.com/read/28251796/cytotoxicity-of-natural-killer-cells-activated-through-nkg2d-contributes-to-the-development-of-bronchiolitis-obliterans-in-a-murine-heterotopic-tracheal-transplant-model
#4
Toru Kawakami, Koyu Ito, Yasushi Matsuda, Masahumi Noda, Akira Sakurada, Yasushi Hoshikawa, Yoshinori Okada, Kouetsu Ogasawara
Bronchiolitis obliterans after lung transplantation is a major cause of postoperative mortality in which T cell-mediated immunity is known to play an important role. However, the exact contribution of NK cells, which have similar functions to CD8(+) T cells, has not been defined. Here, we assessed the role of NK cells in murine bronchiolitis obliterans through heterotopic tracheal transplantations and found a greater percentage of NK cells in allografts than in isografts. Depletion of NK cells using an anti-NK1...
March 1, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28239073/effects-of-topical-application-of-betamethasone-on-imiquimod-induced-psoriasis-like-skin-inflammation-in-mice
#5
Hiroki Mori, Kojo Arita, Takayuki Yamaguchi, Midori Hirai, Yoichi Kurebayashi
Psoriasis is a chronic inflammatory skin disease mediated by dysregulated auto-reactive immune system. In this study, in order to confirm and further extend the pharmacological basis of topical steroids in psoriasis therapy, we investigated the effect of betamethasone ointment on imiquimod (IMQ)-induced skin inflammation in mice. In BALB/c mice, topical IMQ at the dose of 250 µg each on both sides of the ear induced marked psoriasis-like skin inflammation within 5 days. The same dose of IMQ produced only slight to moderate skin inflammation even on Day 7 in CB-17 scid mice...
September 9, 2016: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28224733/nk1-1-cd4-nkg2d-t-cells-suppress-dss-induced-colitis-in-mice-through-production-of-tgf-%C3%AE
#6
Xingxing Qian, Chunxia Hu, Sen Han, Zhijie Lin, Weiming Xiao, Yanbing Ding, Yu Zhang, Li Qian, Xiaoqing Jia, Guoqiang Zhu, Weijuan Gong
CD4(+) NKG2D(+) T cells are associated with tumour, infection and autoimmune diseases. Some CD4(+) NKG2D(+) T cells secrete IFN-γ and TNF-α to promote inflammation, but others produce TGF-β and FasL to facilitate tumour evasion. Here, murine CD4(+) NKG2D(+) T cells were further classified into NK1.1(-) CD4(+) NKG2D(+) and NK1.1(+) CD4(+) NKG2D(+) subpopulations. The frequency of NK1.1(-) CD4(+) NKG2D(+) cells decreased in inflamed colons, whereas more NK1.1(+) CD4(+) NKG2D(+) cells infiltrated into colons of mice with DSS-induced colitis...
February 22, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28152883/investigating-racial-disparities-in-use-of-nk1-receptor-antagonists-to-prevent-chemotherapy-induced-nausea-and-vomiting-among-breast-cancer-patients
#7
Katherine Elizabeth Reeder-Hayes, Ethan M Basch, Leah L Zullig, Morris Weinberger, Stacie Dusetzina
292 Background: Chemotherapy-induced nausea and vomiting (CINV) is a major concern for cancer patients and, if uncontrolled, it can have serious implications for patients' treatment outcomes, including quality of life. Guidelines recommend the use of an NK1 receptor antagonist to prevent CINV among patients beginning chemotherapy with a high risk of causing the side effect. However, barriers to use of oral NK1s (i.e., aprepitant) exist. In many cases, patients are required to fill a prescription for aprepitant at their home pharmacy...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28131781/the-involvement-of-spinal-release-of-histamine-on-nociceptive-behaviors-induced-by-intrathecally-administered-spermine
#8
Hirokazu Mizoguchi, Chizuko Watanabe, Takafumi Hayashi, Yoko Iwata, Hiroyuki Watanabe, Soh Katsuyama, Kengo Hamamura, Tsukasa Sakurada, Hiroshi Ohtsu, Kazuhiko Yanai, Shinobu Sakurada
The involvement of spinal release of histamine on nociceptive behaviors induced by spermine was examined in mice. Intrathecal spermine produced dose-dependent nociceptive behaviors, consisting of scratching, biting and licking. The nociceptive behaviors induced by spermine at 0.02 amol and 10 pmol were markedly suppressed by i.t. pretreatment with antiserum against histamine and were abolished in histidine decarboxylase-deficient mice. In histamine H1 receptor-deficient mice, the nociceptive behaviors induced by spermine were completely abolished after treatment with 0...
April 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28122008/compromised-neurotrophic-and-angiogenic-regenerative-capability-during-tendon-healing-in-a-rat-model-of-type-ii-diabetes
#9
Aisha S Ahmed, Jian Li, Alim M D Abdul, Mahmood Ahmed, Claes-Göran Östenson, Paul T Salo, Carolyn Hewitt, David A Hart, Paul W Ackermann
Metabolic diseases such as diabetes mellitus type-II (DM-II) may increase the risk of suffering painful connective tissue disorders and tendon ruptures. The pathomechanisms, however, by which diabetes adversely affects connective tissue matrix metabolism and regeneration, still need better definition. Our aim was to study the effect of DM-II on expressional changes of neuro- and angiotrophic mediators and receptors in intact and healing Achilles tendon. The right Achilles tendon was transected in 5 male DM-II Goto-Kakizaki (GK) and 4 age-matched Wistar control rats...
2017: PloS One
https://www.readbyqxmd.com/read/28115552/xenin-augments-duodenal-anion-secretion-via-activation-of-afferent-neural-pathways
#10
Izumi Kaji, Yasutada Akiba, Ikuo Kato, Koji Maruta, Atsukazu Kuwahara, Jonathan D Kaunitz
Xenin-25, a neurotensin (NT)-related anorexigenic gut hormone generated mostly in the duodenal mucosa, is believed to increase the rate of duodenal ion secretion, since xenin-induced diarrhea is not present after Roux-en-Y gastric bypass surgery. Since the local effects of xenin on duodenal ion secretion have remained uninvestigated, we thus examined the neural pathways underlying xenin-induced duodenal anion secretion. Intravenous infusion of xenin-8, a bioactive C-terminal fragment of xenin-25, dose-dependently increased the rate of duodenal HCO3- secretion in perfused duodenal loops of anesthetized rats...
January 23, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28108820/prevention-of-chemotherapy-induced-nausea-the-role-of-neurokinin-1-nk1-receptor-antagonists
#11
Snežana M Bošnjak, Richard J Gralla, Lee Schwartzberg
Chemotherapy-induced nausea (CIN) has a significant negative impact on the quality of life of cancer patients. The use of 5-hydroxytryptamine-3 (5-HT3) receptor antagonists (RAs) has reduced the risk of vomiting, but (except for palonosetron) their effect on nausea, especially delayed nausea, is limited. This article reviews the role of NK1RAs when combined with 5-HT3RA-dexamethasone in CIN prophylaxis. Aprepitant has not shown consistent superiority over a two-drug (ondansetron-dexamethasone) combination in nausea control after cisplatin- or anthracycline-cyclophosphamide (AC)-based highly emetogenic chemotherapy (HEC)...
January 20, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28104683/panin-neuroendocrine-cells-promote-tumorigenesis-via-neuronal-crosstalk
#12
Smrita Sinha, Ya-Yuan Fu, Adrien Grimont, Maren Ketcham, Kelly J Lafaro, Joseph A Saglimbeni, Gokce Askan, Jennifer M Bailey, Jerry P Melchor, Yi Zhong, Min Geol Joo, Olivera Grbovic-Huezo, In-Hong Yang, Olca Basturk, Lindsey Baker, Youngkyu Park, Robert C Kurtz, David A Tuveson, Steven D Leach, Pankaj Pasricha
Nerves are a notable feature of the tumor microenvironment in some epithelial tumors, but their role in the malignant progression of pancreatic ductal adenocarcinoma (PDAC) is uncertain. Here we identify dense innervation in the microenvironment of precancerous pancreatic lesions, known as pancreatic intraepithelial neoplasms (PanIN), and describe a unique subpopulation of neuroendocrine PanIN cells that express the neuropeptide substance P (SP) receptor Neurokinin 1-R (NK1-R). Using organoid culture, we demonstrated that sensory neurons promoted the proliferation of PanIN organoids via SP-NK1-R signaling and Stat3 activation...
January 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/28088386/trypsin-induces-biphasic-muscle-contraction-and-relaxation-via-transient-receptor-potential-vanilloid-1-and-neurokinin-receptors-1-2-in-porcine-esophageal-body
#13
Bai Xiaopeng, Yoshimasa Tanaka, Eikichi Ihara, Katsuya Hirano, Kayoko Nakano, Mayumi Hirano, Yoshinao Oda, Kazuhiko Nakamura
Duodenal reflux of fluids containing trypsin relates to refractory gastroesophageal reflux disease (GERD). Esophageal peristalsis and clearance are important factors in GERD pathogenesis. However, the function of trypsin in esophageal body contractility is not fully understood. In this study, effects of trypsin on circular smooth muscle (CSM) and longitudinal smooth muscle (LSM) of the porcine esophageal body were examined. Trypsin elicited a concentration dependent biphasic response, a major contraction and a subsequent relaxation only in CSM...
January 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28065449/a-specific-immune-tolerance-toward-offspring-cells-is-to-exist-after-the-mother-lymphocyte-infusion
#14
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/28056922/herbal-formula-xian-fang-huo-ming-yin-regulates-differentiation-of-lymphocytes-and-production-of-pro-inflammatory-cytokines-in-collagen-induced-arthritis-mice
#15
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/28035212/interleukin-17-expressing-innate-synovial-cells-drive-k-bxn-serum-induced-arthritis
#16
Wang Shik Cho, Eunkyeong Jang, Ho-Youn Kim, Jeehee Youn
K/BxN serum can induce arthritis in normal mice because of abundant autoantibodies that trigger an innate inflammatory response in joints. To determine whether IL-17 is involved in the pathogenesis of serum-induced arthritis, we injected wild-type and IL-17(-/-) mice with K/BxN serum and evaluated them for signs of arthritis. Unlike wild-type mice, IL-17(-/-) mice did not show any signs of arthritis. IL-17 was produced predominantly by CD3(-) CD4(-) γδTCR(-) NK1.1(-) Sca1(int) Thy1(hi) cells residing in the inflamed synovial tissue...
December 2016: Immune Network
https://www.readbyqxmd.com/read/28032216/effectiveness-of-aprepitant-in-addition-to-ondansetron-in-the-prevention-of-nausea-and-vomiting-caused-by-fractionated-radiotherapy-to-the-upper-abdomen-avert
#17
Steven Ades, M Halyard, K Wilson, T Ashikaga, R Heimann, S Kumar, W Blackstock
PURPOSE: Despite a lower risk of nausea and vomiting in patients receiving radiotherapy to the upper abdomen (UA-RINV) with prophylactic 5-HT3 antagonist therapy, patients can still experience UA-RINV. The aim of this multicenter phase II study was to assess effectiveness, safety, and tolerability of protracted dual NK1-receptor and 5-HT3 antagonist prophylaxis against UA-RINV. METHODS: Patients receiving fractionated radiotherapy with radiosensitizing chemotherapy received oral ondansetron 8 mg po q12 h and aprepitant 125/80/80 mg on a Monday, Wednesday, Friday schedules throughout radiotherapy...
December 28, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28028361/characterization-of-smooth-muscle-enteric-nerve-interstitial-cells-of-cajal-and-fibroblast-like-cells-in-the-gastric-musculature-of-patients-with-diabetes-mellitus
#18
Kyung Sik Park, Kwang Bum Cho, Il Seon Hwang, Jae Hyung Park, Byung Ik Jang, Kyeong Ok Kim, Sung Woo Jeon, Eun Soo Kim, Chang Sik Park, Joong Goo Kwon
AIM: To investigate histologic abnormalities in the gastric smooth muscle of patients with diabetes mellitus (DM). METHODS: Full-thickness gastric specimens were obtained from patients undergoing surgery for gastric cancer. H&E stain and Masson's Trichrome stain were performed to assess the degree of fibrosis. Immunohistochemical staining using various antibodies was also performed [antibodies against protein gene product 9.5 (PGP9.5), neuronal nitric oxide synthase (nNOS), vasoactive intestinal peptide (VIP), neurokinin-1 (NK1) receptor, c-Kit, and platelet-derived growth factor receptor-alpha, (PDGFRα)]...
December 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27993375/role-of-hemokinin-1-in-health-and-disease
#19
REVIEW
Éva Borbély, Zsuzsanna Helyes
Hemokinin-1 (HK-1), the newest tachykinin encoded by the Tac4 gene was discovered in 2000. Its name differs from that of the other members of this peptide family due to its first demonstration in B lymphocytes. Since tachykinins are classically found in the nervous system, the significant expression of HK-1 in blood cells is a unique feature of this peptide. Due to its widespread distribution in the whole body, HK-1 is involved in different physiological and pathophysiological functions involving pain inflammation modulation, immune regulation, respiratory and endocrine functions, as well as tumor genesis...
December 13, 2016: Neuropeptides
https://www.readbyqxmd.com/read/27982126/interleukin-12-bypasses-common-gamma-chain-signalling-in-emergency-natural-killer-cell-lymphopoiesis
#20
Isabel Ohs, Maries van den Broek, Kathrin Nussbaum, Christian Münz, Sebastian J Arnold, Sergio A Quezada, Sonia Tugues, Burkhard Becher
Differentiation and homeostasis of natural killer (NK) cells relies on common gamma-chain (γc)-dependent cytokines, in particular IL-15. Consequently, NK cells do not develop in mice with targeted γc deletion. Herein we identify an alternative pathway of NK-cell development driven by the proinflammatory cytokine IL-12, which can occur independently of γc-signalling. In response to viral infection or upon exogenous administration, IL-12 is sufficient to elicit the emergence of a population of CD122(+)CD49b(+) cells by targeting NK-cell precursors (NKPs) in the bone marrow (BM)...
December 16, 2016: Nature Communications
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