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https://www.readbyqxmd.com/read/28960674/requisite-role-of-vasohibin-2-in-spontaneous-gastric-cancer-formation-and-accumulation-of-cancer-associated-fibroblasts
#1
Yasuhiro Suzuki, Shuji Kitahara, Takuya Suematsu, Masanobu Oshima, Yasufumi Sato
The vasohibin (VASH) family consists of two genes, VASH1 and VASH2. VASH1 is mainly expressed in vascular endothelial cells and suppresses angiogenesis in an autocrine manner whereas VASH2 is mainly expressed in cancer cells and exhibits pro-angiogenic activity. Employing adenomatous polyposis coli gene mutant mice, we have recently reported the role of Vash2 in the spontaneous formation of intestinal tumors. In this study, we used K19-Wnt1/C2mE (Gan) mice and examined the role of Vash2 in spontaneous gastric cancer formation...
September 27, 2017: Cancer Science
https://www.readbyqxmd.com/read/28951222/dietary-pyridoxine-deficiency-reduced-growth-performance-and-impaired-intestinal-immune-function-associated-with-tor-and-nf-%C3%AE%C2%BAb-signalling-of-young-grass-carp-ctenopharyngodon-idella
#2
Xin Zheng, Lin Feng, Wei-Dan Jiang, Pei Wu, Yang Liu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou
The objective of this study was to evaluate the effects of dietary pyridoxine (PN) deficiency on growth performance, intestinal immune function and the potential regulation mechanisms in young grass carp (Ctenopharyngodon idella). Fish were fed six diets containing graded levels of PN (0.12-7.48 mg/kg) for 70 days. After that, a challenge test was conducted by infection of Aeromonas hydrophila for 14 days. The results showed that compared with the optimal PN level, PN deficiency: (1) reduced the production of innate immune components such as lysozyme (LZ), acid phosphatase (ACP), complements and antimicrobial peptides and adaptive immune components such as immunoglobulins in three intestinal segments of young grass carp (P < 0...
September 23, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28922655/zymosan-a-protects-the-hematopoietic-system-from-radiation-induced-damage-by-targeting-tlr2-signaling-pathway
#3
Jicong Du, Ying Cheng, Suhe Dong, Pei Zhang, Jiaming Guo, Jiaqi Han, Fu Gao, Hainan Zhao, Ding Sun, Jianguo Cui, Jianming Cai, Cong Liu
BACKGROUND/AIMS: The hematopoietic system is vulnerable to ionizing radiation and is often severely damaged by radiation. Molecules affecting radioresistance include Toll-like receptor 2. We investigated whether Zymosan-A, a novel TLR2 agonist, can protect the hematopoietic system from radiation-induced damage after total body irradiation. METHODS: Mice were exposed to total body radiation after treatment with Zymosan-A or normal saline, and their survival was recorded...
September 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28887447/interleukin-11-induces-and-maintains-progenitors-of-different-cell-lineages-during-xenopus-tadpole-tail-regeneration
#4
Hiroshi Tsujioka, Takekazu Kunieda, Yuki Katou, Katsuhiko Shirahige, Taro Fukazawa, Takeo Kubo
Unlike mammals, Xenopus laevis tadpoles possess high ability to regenerate their lost organs. In amphibians, the main source of regenerated tissues is lineage-restricted tissue stem cells, but the mechanisms underlying induction, maintenance and differentiation of these stem/progenitor cells in the regenerating organs are poorly understood. We previously reported that interleukin-11 (il-11) is highly expressed in the proliferating cells of regenerating Xenopus tadpole tails. Here, we show that il-11 knockdown (KD) shortens the regenerated tail length, and the phenotype is rescued by forced-il-11-expression in the KD tadpoles...
September 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28864002/interleukin-11-classic-but-not-trans-signaling-is-essential-for-fertility-in-mice
#5
Maria Agthe, Yvonne Garbers, Tracy Putoczki, Christoph Garbers
The cytokine interleukin (IL)-11 activates its target cells through binding to the membrane-bound IL-11 receptor (IL-11R). Female mice deficient in IL-11R (Il11ra(-/-)) are infertile due to a defect in decidualization when the blastocyst implants. We have recently shown that IL-11 can also signal via a soluble IL-11R (trans-signaling). Which IL-11 pathway is required for fertility in mice is unknown. We confirm that female Il11ra(-/-)mice, lacking both classic and trans-signaling, are infertile. In contrast, the selective blockade of IL-11 trans-signaling does not affect fertility in mice...
September 2017: Placenta
https://www.readbyqxmd.com/read/28861713/lncrna-zeb1-as1-contributes-to-stat3-activation-by-associating-with-il-11-in-b-lymphoblastic-leukemia
#6
Qing Wang, Xiaoli Du, Min Yang, Shishan Xiao, Jun Cao, Jun Song, Linhui Wang
OBJECTIVE: To investigate the role of lncRNA ZEB1-AS1 in B-lineage acute lymphoblastic leukemia (B-ALL). RESULTS: ZEB1-AS1 levels were aberrantly up-regulated in B-ALL. All correlated with STAT3 activation and IL-11 production. Moreover, a high level of ZEB1-AS1 predicted poor prognosis of B-ALL patients. Mechanistically, ZEB1-AS1 could bind to IL-11 and promote IL-11 stability. Down-regulation of ZEB1-AS1 decreased IL-11 production of human bone marrow stromal cells (BMSCs), which led to suppressed proliferation and inhibited IL-11/STAT3 pathway in BALL-1 cells...
August 31, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28854223/therapeutic-potential-of-tonsil-derived-mesenchymal-stem-cells-in-dextran-sulfate-sodium-induced-experimental-murine-colitis
#7
Yeonsil Yu, Eun Mi Song, Ko Eun Lee, Yang-Hee Joo, Seong-Eun Kim, Chang Mo Moon, Ha Yeong Kim, Sung-Ae Jung, Inho Jo
The therapeutic potential of tonsil-derived mesenchymal stem cells (TMSC) prepared from human tonsillar tissue has been studied in animal models for several diseases such as hepatic injury, hypoparathyroidism, diabetes and muscle dystrophy. In this study, we examined the therapeutic effects of TMSC in a dextran sulfate sodium (DSS)-induced colitis model. TMSC were injected in DSS-induced colitis mice via intraperitoneal injection twice (TMSC[x2]) or four times (TMSC[x4]). Control mice were injected with either phosphate-buffered saline or human embryonic kidney 293 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28748627/genetic-ablation-of-carbonic-anhydrase-ix-disrupts-gastric-barrier-function-via-claudin-18-downregulation-and-acid-backflux
#8
Taolang Li, Xuemei Liu, Brigitte Riederer, Katerina Nikolovska, Anurag Kumar Singh, Kari A Mäkelä, Anna Seidler, Yongjian Liu, Gerolf Gros, Helmut Bartels, Karl Heinz Herzig, Ursula Seidler
AIM: The study aims to explore the molecular mechanisms for the parietal cell loss and fundic hyperplasia observed in gastric mucosa of mice lacking the carbonic anhydrase 9 (CAIX). METHODS: We assessed the ability of CAIX knockout and WT gastric surface epithelial cells to withstand luminal acid load by measuring the pHi of exteriorized gastric mucosa in vivousing two photon confocal laser scanning microscopy. Cytokines and claudin-18A2 expression was analyzed by RT-PCR...
July 27, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28747553/krt8-upregulation-promotes-tumor-metastasis-and-is-predictive-of-a-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#9
Hai-Song Tan, Wei-Hua Jiang, Yi He, De-Sheng Wang, Zhen-Jie Wu, Deng-Shuang Wu, Li Gao, Yi Bao, Jia-Zi Shi, Bing Liu, Li-Jun Ma, Lin-Hui Wang
Keratin 8 (KRT8) plays an essential role in the development and metastasis of multiple human cancers. However, its role in clear cell renal cell carcinoma (ccRCC) remains unexplored. Here, we investigated the expression pattern, clinical significance, and function of KRT8 in ccRCC. KRT8 mRNA and protein levels were determined in two large cohorts using quantitative real-time polymerase chain reaction (qRT-PCR) and tissue microarray (TMA) immunohistochemistry (IHC), respectively. We found that KRT8 expression was upregulated in ccRCC and vein tumor thrombi (VTTs)...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28747427/a-biallelic-mutation-in-il6st-encoding-the-gp130-co-receptor-causes-immunodeficiency-and-craniosynostosis
#10
Tobias Schwerd, Stephen R F Twigg, Dominik Aschenbrenner, Santiago Manrique, Kerry A Miller, Indira B Taylor, Melania Capitani, Simon J McGowan, Elizabeth Sweeney, Astrid Weber, Liye Chen, Paul Bowness, Andrew Riordan, Andrew Cant, Alexandra F Freeman, Joshua D Milner, Steven M Holland, Natalie Frede, Miryam Müller, Dirk Schmidt-Arras, Bodo Grimbacher, Steven A Wall, E Yvonne Jones, Andrew O M Wilkie, Holm H Uhlig
Multiple cytokines, including interleukin 6 (IL-6), IL-11, IL-27, oncostatin M (OSM), and leukemia inhibitory factor (LIF), signal via the common GP130 cytokine receptor subunit. In this study, we describe a patient with a homozygous mutation of IL6ST (encoding GP130 p.N404Y) who presented with recurrent infections, eczema, bronchiectasis, high IgE, eosinophilia, defective B cell memory, and an impaired acute-phase response, as well as skeletal abnormalities including craniosynostosis. The p.N404Y missense substitution is associated with loss of IL-6, IL-11, IL-27, and OSM signaling but a largely intact LIF response...
September 4, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28735867/cleavage-of-the-interleukin-11-receptor-induces-processing-of-its-c-terminal-fragments-by-the-gamma-secretase-and-the-proteasome
#11
Juliane Lokau, Charlotte M Flynn, Christoph Garbers
The cytokine Interleukin-11 (IL-11) signals through the membrane-bound IL-11 receptor (IL-11R), which is expressed in a cell-type specific manner. We have recently shown that the metalloprotease ADAM10 can cleave the IL-11R. The liberated soluble IL-11R (sIL-11R) ectodomain can bind its ligand, and the resulting IL-11/sIL-11R complex can activate cells that do not express the IL-11R (trans-signaling). In this study, we show that the remaining C-terminal fragment (CTF1) after ADAM10-mediated cleavage is subsequently cleaved within the membrane by the gamma-secretase complex, and that the resulting shorter CTF2 is further degraded by the proteasome...
September 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28714957/il-11-contribution-to-tumorigenesis-in-an-nrf2-addiction-cancer-model
#12
H Kitamura, Y Onodera, S Murakami, T Suzuki, H Motohashi
The interaction between cancer cells and their microenvironment is an important determinant of the pathological nature of cancers, particularly their tumorigenic abilities. The KEAP1-NRF2 system, originally identified as a critical defense mechanism against oxidative stress, is often dysregulated in various human cancers forming solid tumors, resulting in the aberrant activation of NRF2. Increased accumulation of NRF2 in cancers is strongly associated with the poor prognoses of cancer patients, including those with lung and breast cancers...
July 17, 2017: Oncogene
https://www.readbyqxmd.com/read/28708884/a-jak1-2-inhibitor-baricitinib-inhibits-osteoclastogenesis-by-suppressing-rankl-expression-in-osteoblasts-in-vitro
#13
Kohei Murakami, Yasuhiro Kobayashi, Shunsuke Uehara, Takako Suzuki, Masanori Koide, Teruhito Yamashita, Midori Nakamura, Naoyuki Takahashi, Hiroyuki Kato, Nobuyuki Udagawa, Yukio Nakamura
The Janus kinases (Jaks) are hubs in the signaling process of more than 50 cytokine or hormone receptors. However, the function of Jak in bone metabolism remains to be elucidated. Here, we showed that the inhibition of Jak1 and/or Jak2 in osteoblast-lineage cells led to impaired osteoclastogenesis due to the reduced expression of receptor activator of nuclear factor-κB ligand (RANKL). Murine calvaria-derived osteoblasts induced differentiation of bone marrow cells into osteoclasts in the presence of 1,25-dihydroxyvitamin D3 (1,25D3) and prostaglandin E2 (PGE2) in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28707573/synthesis-radiosynthesis-and-metabolism-of-131i-y-c-cgrraggsc
#14
Jilai Xie, Donghui Pan, Mudan Lu, Xuan Chen, Yu Chen, Ting Zhang, Yan Xie, Huan Zhou, Lu Liu, Min Yang, Jiajun Wang, Daozhen Chen
BACKGROUND: The formation of the complex interleukin-11(IL-11) and IL-11 receptor (IL-11R) is closely related with tumor progression. Binding of IL-11 to the IL-11 receptor α-chain (IL-11Rα) has been suggested as a target for human cancer. The cyclic peptide c(CGRRAGGSC) is a mimic of IL-11. OBJECTIVE: To explore 131I-Y-c(CGRRAGGSC) synthesis and radiosynthesis, and metabolism in SKOV3 tumor-bearing mice. METHOD: In this study, 131I labeled c(CGRRAGGSC) was designed and characterized...
July 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28698375/bmtp-11-is-active-in-preclinical-models-of-human-osteosarcoma-and-a-candidate-targeted-drug-for-clinical-translation
#15
Valerae O Lewis, Eswaran Devarajan, Marina Cardó-Vila, Dafydd G Thomas, Eugenie S Kleinerman, Serena Marchiò, Richard L Sidman, Renata Pasqualini, Wadih Arap
Osteosarcoma occurs predominantly in children and young adults. High-grade tumors require multidisciplinary treatment consisting of chemotherapy in the neoadjuvant and adjuvant settings, along with surgical intervention. Despite this approach, death from respiratory failure secondary to the development and progression of pulmonary metastases remains a significant problem. Here, we identify the IL-11 receptor α subunit (IL-11Rα) as a cell surface marker of tumor progression that correlates with poor prognosis in patients with osteosarcoma...
July 25, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28686677/mdr1a-deficiency-restrains-tumor-growth-in-murine-colitis-associated-carcinogenesis
#16
Eva Maria Hennenberg, Annette Eyking, Henning Reis, Elke Cario
Patients with Ulcerative Colitis (UC) have an increased risk to develop colitis-associated colorectal cancer (CAC). Here, we found that protein expression of ABCB1 (ATP Binding Cassette Subfamily B Member 1) / MDR1 (multidrug resistance 1) was diminished in the intestinal mucosa of patients with active UC with or without CAC, but not in non-UC patients with sporadic colon cancer. We investigated the consequences of ABCB1/MDR1 loss-of-function in a common murine model for CAC (AOM/DSS). Mice deficient in MDR1A (MDR1A KO) showed enhanced intratumoral inflammation and cellular damage, which were associated with reduced colonic tumor size and decreased degree of dysplasia, when compared to wild-type (WT)...
2017: PloS One
https://www.readbyqxmd.com/read/28647515/a-phytoestrogen-supplement-prevents-the-altered-gene-expression-associated-with-pregnancy-implantation-induced-by-il-1%C3%AE-in-endometrial-epithelial-cells
#17
Sayaka Suzuki, Noe Nakashima, Masakatsu Kageyama, Kazuo Yamagata
Phytoestrogens stimulate expression of the uterine estrogen receptor and regulate uterine functions in reproductive tissues. However, comprehensive understanding of the beneficial impacts of phytoestrogens on uterine biology at the molecular level remains unexplored. Interleukin-1β (IL-1β) expression is increased in the inflamed decidua and is associated with first trimester pregnancy loss. AglyMax-Sup has the same composition as that of the phytoestrogen supplement AglyMax but with added vitamins and other components...
September 2017: Reproductive Biology
https://www.readbyqxmd.com/read/28630024/proteolytic-control-of-interleukin-11-and-interleukin-6-biology
#18
REVIEW
Juliane Lokau, Maria Agthe, Charlotte M Flynn, Christoph Garbers
Interleukin-11 (IL-11) and IL-6 are secreted glycoproteins which fulfill important homeostatic functions. Activation of target cells occurs via membrane-bound IL-11 and IL-6 receptors (IL-11R and IL-6R, respectively). Formation of IL-11/IL-11R and IL-6/IL-6R complexes triggers the recruitment of a homodimer of the ubiquitously expressed signal-transducing β-receptor gp130 (classic signaling). IL-11R and IL-6R can be shed by several proteases, albeit with different preferences and specificities, and these soluble receptors (sIL-11R and sIL-6R) act as agonists and can activate in principle all cells via gp130...
November 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28620096/interleukin-6-family-cytokines
#19
Stefan Rose-John
The interleukin (IL)-6 family cytokines is a group of cytokines consisting of IL-6, IL-11, ciliary neurotrophic factor (CNTF), leukemia inhibitory factor (LIF), oncostatin M (OSM), cardiotrophin 1 (CT-1), cardiotrophin-like cytokine (CLC), and IL-27. They are grouped into one family because the receptor complex of each cytokine contains two (IL-6 and IL-11) or one molecule (all others cytokines) of the signaling receptor subunit gp130. IL-6 family cytokines have overlapping but also distinct biologic activities and are involved among others in the regulation of the hepatic acute phase reaction, in B-cell stimulation, in the regulation of the balance between regulatory and effector T cells, in metabolic regulation, and in many neural functions...
June 15, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28596035/the-pharmacokinetic-and-pharmacodynamic-properties-of-site-specific-pegylated-genetically-modified-recombinant-human-interleukin-11-in-normal-and-thrombocytopenic-monkeys
#20
Shan-Shan Ma, Seong-Hyun Ho, Su-Yong Ma, Yue-Juan Li, Kai-Tong Li, Xiao-Chuang Tang, Guang-Rong Zhao, Song-Shan Xu
In order to improve the pharmacokinetic and pharmacodynamic properties of recombinant human interleukin-11 mutein (mIL-11) and to reduce the frequency of administration, we examined the feasibility of chemical modification of mIL-11 by methoxy polyethylene glycol succinimidyl carbonate (mPEG-SC). PEG-mIL-11 was prepared by a pH controlled amine specific method. Bioactivity of the protein was determined in a IL-11-dependent in vitro bioassay, its pharmacodynamic and pharmacokinetic properties were investigated by using normal and thrombocytopenic monkey models...
October 2017: European Journal of Pharmaceutics and Biopharmaceutics
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