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https://www.readbyqxmd.com/read/29149676/high-salt-diet-decreases-reproductive-performance-in-rams-and-down-regulates-gene-expression-of-some-components-of-the-renin-angiotensin-system-in-the-testis
#1
Yi Fang, Rongzhen Zhong, Xuezhao Sun, Daowei Zhou
Although salt-tolerant plants can be used to combat dryland salinity, these plants contain high concentrations of salt (NaCl), which may have deleterious effects if fed to livestock. Twenty-four Merino rams (9 mo of age) with similar body weight were equally allocated to two groups and fed a normal- or high-salt diet (0.5 and 12% NaCl, respectively) for 3 mo. Rams fed the high-salt diet had lower live weight gains, higher water intake, smaller testes (466 ± 48.4 vs 604 ± 51.1 g) and reductions (P <0...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29147625/a-transcriptomic-insight-into-the-impacts-of-mast-cells-in-lung-breast-and-colon-cancers
#2
Eun-A Ko, Kenton M Sanders, Tong Zhou
To date, the exact impact of mast cells in tumor microenvironment is still controversial because of inconsistency in observations regarding the relationship between mast cell infiltrates and cancer development and prognosis. The discrepancies in previous studies have motivated us to examine the roles of mast cells in cancer pathology from different perspectives. Here, we investigated the impact of mast cells on transcriptomic profiles in the tissue microenvironment. Mice carrying the W-sh mutation in c-kit (Kit(W-sh) ) are deficient in mast cell production and were used to assess the influence of mast cells on gene expression...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29145790/innate-immunity-in-cardiac-myxomas-and-its-pathological-and-clinical-correlations
#3
Anna Di Vito, Gianluca Santise, Chiara Mignogna, Eusebio Chiefari, Gabriella Cardillo, Ivan Presta, Franco Arturi, Natalia Malara, Francesco Brunetti, Annalidia Donato, Domenico Maisano, Stefania Leonetti, Daniele Maselli, Tullio Barni, Giuseppe Donato
Cardiac myxomas are the most common benign cardiac tumor. We investigated the immunohistochemical properties of 11 surgically excised cardiac myxomas, in order to analyze the correlation between macrophages and mast cell populations and clinical parameters. CD68(+)/CD163(-)/iNOS(-) (M0) cells represent the most abundant macrophage phenotype; however, CD68(+)/CD163(+) cells (M2) were also frequent. CD68(+)/iNOS(+) (M1) elements were rare. Mast cells, defined as a population of c-kit (CD117)(+) and/or tryptase(+) cells were also detected...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/29143989/nanos2-promotes-differentiation-of-chicken-gallus-gallus-embryonic-stem-cells-to-male-germ-cells
#4
Zhang Wenhui, Bi Yulin, Wang Yingjie, Li Dong, He Nana, Wang Man, Jin Jing, Zuo Qisheng, Zhang Yani, Li Bichun
Nanos2 is an evolutionarily conserved RNA-binding protein containing 2 CCHC-type zinc finger motives. Here, we report that Nanos2 is strongly expressed in the testis compared to other tissues in chicken (Gallus gallus). Overexpression and knockout plasmid vectors were constructed, and in-vitro Cas9/gRNA digestion and T7 endonuclease I (T7E1) assay indicated that Nanos2-g1 possessed the highest knockout activity. In vitro and in vivo, Nanos2 overexpression accelerated the production of embryoid bodies (EBs) and SSC-like cells and promoted cvh, c-kit and integrin α6 expression...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29141658/thioredoxin-mitigates-radiation-induced-hematopoietic-stem-cell-injury-in-mice
#5
Pasupathi Sundaramoorthy, Qinhong Wang, Zhihong Zheng, Yiqun Jiao, Benny J Chen, Phuong L Doan, Nelson J Chao, Yubin Kang
BACKGROUND: Radiation exposure poses a significant threat to public health. Hematopoietic injury is one of the major manifestations of acute radiation sickness. Protection and/or mitigation of hematopoietic stem cells (HSCs) from radiation injury is an important goal in the development of medical countermeasure agents (MCM). We recently identified thioredoxin (TXN) as a novel molecule that has marked protective and proliferative effects on HSCs. In the current study, we investigated the effectiveness of TXN in rescuing mice from a lethal dose of total body radiation (TBI) and in enhancing hematopoietic reconstitution following a lethal dose of irradiation...
November 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29141105/the-feasibility-of-intraperitoneal-placenta-derived-mesenchymal-stem-cell-injection-in-stomachs-of-diabetic-mice
#6
Jong Min Park, Sang Hwan Lee, Kwang Il Kim, Won Hee Kim, Joo Young Cho, Ki Baik Hahm, Sung Pyo Hong
BACKGROUND/AIMS: Diabetic gastropathy is associated with loss of Interstitial cells of Cajal (ICCs) and autonomic neuropathy. Effective management for diabetic gastropathy is still unavailable. This study was aimed to confirm the pathogenetic changes in diabetic gastropathy and to examine the effect of treatment with placental derived mesenchymal stem cells (PDMSCs) in stomachs of animal models. METHODS: Fourteen NOD/ShiLtJ mice of 8 weeks were bled until week 30...
November 15, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29137292/the-clinical-significance-of-c-kit-mutations-in-metastatic-oral-mucosal-melanoma-in-china
#7
Xuhui Ma, Yunteng Wu, Tian Zhang, Hao Song, Houyu Jv, Wei Guo, Guoxin Ren
c-Kit mutations are frequently detected in mucosal melanomas, but their clinical significance in metastatic oral mucosal melanomas (OMM) remains unclear. The main purpose of this study was to investigate the clinical and pathological features of metastatic OMMs with c-Kit mutations and the efficiency of the tyrosine kinase inhibitor imatinib in treating metastatic OMMs. We found thatresidual primary lesion and neck lymph nodes could act as independent prognostic factors in metastatic OMM patients. c-Kit mutations were detected in 22 out of 139 (15...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29131159/enhancing-the-precision-of-genetic-lineage-tracing-using-dual-recombinases
#8
Lingjuan He, Yan Li, Yi Li, Wenjuan Pu, Xiuzhen Huang, Xueying Tian, Yue Wang, Hui Zhang, Qiaozhen Liu, Libo Zhang, Huan Zhao, Juan Tang, Hongbin Ji, Dongqing Cai, Zhibo Han, Zhongchao Han, Yu Nie, Shengshou Hu, Qing-Dong Wang, Ruilin Sun, Jian Fei, Fengchao Wang, Ting Chen, Yan Yan, Hefeng Huang, William T Pu, Bin Zhou
The Cre-loxP recombination system is the most widely used technology for in vivo tracing of stem or progenitor cell lineages. The precision of this genetic system largely depends on the specificity of Cre recombinase expression in targeted stem or progenitor cells. However, Cre expression in nontargeted cell types can complicate the interpretation of lineage-tracing studies and has caused controversy in many previous studies. Here we describe a new genetic lineage tracing system that incorporates the Dre-rox recombination system to enhance the precision of conventional Cre-loxP-mediated lineage tracing...
November 13, 2017: Nature Medicine
https://www.readbyqxmd.com/read/29127384/targeting-c-kit-cd117-by-dasatinib-and-radotinib-promotes-acute-myeloid-leukemia-cell-death
#9
Sook-Kyoung Heo, Eui-Kyu Noh, Jeong Yi Kim, Yoo Kyung Jeong, Jae-Cheol Jo, Yunsuk Choi, SuJin Koh, Jin Ho Baek, Young Joo Min, Hawk Kim
Dasatinib and radotinib are oral BCR-ABL tyrosine kinase inhibitors that were developed as drugs for the treatment of chronic myeloid leukemia. We report here that the c-KIT (CD117) targeting with dasatinib and radotinib promotes acute myeloid leukemia (AML) cell death, and c-KIT endocytosis is essential for triggering c-KIT-positive AML cell death by dasatinib and radotinib during the early stages. In addition, dasatinib and radotinib reduce heat shock protein 90β (HSP90β) expression and release Apaf-1 in c-KIT-positive AML cells...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29118944/cardiac-progenitor-cells-application-in-cardiovascular-disease
#10
REVIEW
Hassan Amini, Jafar Rezaie, Armin Vosoughi, Reza Rahbarghazi, Mohammad Nouri
Stem cells (SCs) have special potency to differentiate into different types of cells, especially cardiomyocytes. In order to demonstrate the therapeutic applications of these cells, various investigations are recently being developed. Cardiac progenitor cells are endogenous cardiac SCs that found to express tyrosine kinase receptors, c-Kit and other stemness features in adult heart, contributing to the regeneration of cardiac tissue after injury. This lineage is able to efficiently trans-differentiate into different cell types such as cardiomyocytes, endothelial cells, and smooth muscle cells...
2017: Journal of Cardiovascular and Thoracic Research
https://www.readbyqxmd.com/read/29113403/a-phase-2-open-label-multi-center-study-of-amuvatinib-in-combination-with-platinum-etoposide-chemotherapy-in-platinum-refractory-small-cell-lung-cancer-patients
#11
Lauren Averett Byers, Leora Horn, Jitendra Ghandi, Goetz Kloecker, Taofeek Owonikoko, Saiama Naheed Waqar, Maciej Krzakowski, Robert J Cardnell, Junya Fujimoto, Pietro Taverna, Mohammad Azab, David Ross Camidge
Background: Amuvatinib (MP-470) is a multi-targeted kinase inhibitor with potent activity against c-Kit, synergistic with DNA-damaging agents. We evaluated amuvatinib in combination with platinum-etoposide (EP) chemotherapy by objective response rate, survival, and tolerability in platinum-refractory small cell lung cancer (SCLC) patients. Methods: This study used a Simon 2-stage design requiring ≥3 centrally confirmed responses in the first 21 subjects. Subjects received EP with 300 mg amuvatinib orally three times daily in cycles of 21 days...
October 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/29112292/a-kit-ligand-stem-cell-factor-as-a-possible-mediator-inducing-overactive-bladder
#12
Yasue Kubota, Takashi Hamakawa, Satoshi Osaga, Atsushi Okada, Shuzo Hamamoto, Noriyasu Kawai, Kenjiro Kohri, Takahiro Yasui
OBJECTIVE: To investigate whether c-kit ligand, stem cell factor (SCF) affects the biological behavior of overactive bladder (OAB) and discuss the role of SCF as a possible mediator inducing OAB. MATERIALS AND METHODS: First, we performed an immunohistochemical study to examine the localization of SCF in the guinea pig and human bladder. Next, urinary SCF levels were measured in patients with OAB and in control subjects to evaluate a potential biomarker for the diagnosis of OAB...
November 7, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29107942/differential-expression-of-micrornas-among-cell-populations-in-the-regenerating-adult-mouse-olfactory-epithelium
#13
Sarah Kurtenbach, Wen Ding, Garrett M Goss, Joshua M Hare, Bradley J Goldstein, Lina A Shehadeh
Despite a robust capacity for adult neurogenesis in the olfactory epithelium (OE), olfactory sensory losses are common. Identification of mechanisms regulating adult OE neurogenesis is, therefore, of interest. MicroRNAs (miRNAs) are broadly important in regulating vertebrate neurodevelopment, and are required in embryonic olfactory differentiation. We report here that a panel of miRNAs is differentially expressed by either progenitor or progeny cells in the regenerating mouse OE. Progenitor cells were purified from lesioned OE based on c-Kit expression, and miRNA expression was assayed in c-Kit (+) and c-Kit (-) cell populations...
2017: PloS One
https://www.readbyqxmd.com/read/29107421/discovery-of-novel-pyrrolo-pyridine-pyrimidine-derivatives-bearing-pyridazinone-moiety-as-c-met-kinase-inhibitors
#14
Lin Xiao Wang, Xiaobo Liu, Shan Xu, Qidong Tang, Yongli Duan, Zhen Xiao, Jia Zhi, Liwen Jiang, Pengwu Zheng, Wufu Zhu
In continue to our previous research, eight series of pyrrolo[2,3-b]pyridine and pyrrolo[2,3-d]pyrimidine derivatives bearing pyridazinone moiety were designed, synthesized, and the in vitro antitumor activity was evaluated against four cancer cell lines (A549, HepG2, MCF-7 and PC-3). Some selected compounds (22f, 22g, 26c and 26e) were evaluated for the activity against c-Met kinase, and according to the results of kinase inhibitory activity, the compound 22g was further evaluated for other four tyrosine kinases (Flt-3, VEGFR-2, c-Kit and EGFR) to test the enzyme-based selectivity...
December 1, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29097774/altered-b-lymphopoiesis-in-mice-with-deregulated-thrombopoietin-signaling
#15
Amanda E Au, Marion Lebois, Starling A Sim, Ping Cannon, Jason Corbin, Pradnya Gangatirkar, Craig D Hyland, Diane Moujalled, Angelika Rutgersson, Fatme Yassinson, Benjamin T Kile, Kylie D Mason, Ashley P Ng, Warren S Alexander, Emma C Josefsson
Thrombopoietin (TPO) is the master cytokine regulator of megakaryopoiesis. In addition to regulation of megakaryocyte and platelet number, TPO is important for maintaining proper hematopoietic stem cell (HSC) function. It was previously shown that a number of lymphoid genes were upregulated in HSCs from Tpo (-/-) mice. We investigated if absent or enhanced TPO signaling would influence normal B-lymphopoiesis. Absent TPO signaling in Mpl (-/-) mice led to enrichment of a common lymphoid progenitor (CLP) signature in multipotential lineage-negative Sca-1(+)c-Kit(+) (LSK) cells and an increase in CLP formation...
November 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29093739/aggressive-adenoid-cystic-carcinoma-of-maxillary-sinus-in-a-43-year-old-male-rare-case-report-and-review-of-literature
#16
Koorosh Rahmani, Shokouh Taghipour Zahir, Mohammad Baghi Yazdi, Alireza Navabazam
Adenoid cystic carcinoma (ACC) is a rare malignant tumor, mostly involving the minor salivary glands. Herein, we present a case of ACC in a 43-year-old man with symptoms of dental abscess as the initial presentation of the tumor. In spiral computed tomography (CT) scan, soft tissue mass with the erosion of maxillary sinus wall on the right side of the alveolar ridge was evident. Histopathological examination of the excised tumor with immunohistochemical studies (C-kit, Vimentin, pan-cytokeratin, p53, p63, and ki67 positive reaction) confirmed grade 2 ACC in the maxillary sinus...
2017: Case Reports in Medicine
https://www.readbyqxmd.com/read/29093008/interleukin-27-exerts-its-antitumor-effects-by-promoting-differentiation-of-hematopoietic-stem-cells-to-m1-macrophages
#17
Yukino Chiba, Izuru Mizoguchi, Junichi Furusawa, Hideaki Hasegawa, Mio Ohashi, Mingli Xu, Toshiyuki Owaki, Takayuki Yoshimoto
The interleukin (IL)-27 promotes expansion and differentiation of hematopoietic stem cells into myeloid progenitor cells. Many tumor-infiltrating myeloid cells exert immunosuppressive effects but we hypothesized that the myeloid cells induced by IL-27 would have antitumor activity. In this study we corroborated this hypothesis as investigated in two distinct mouse transplantable tumor models. Malignant mouse cells engineered to express IL-27 exhibited reduced tumor growth in vivo. Correlated with this effect was a significant increase in the number of tumor-infiltrating CD11b+ myeloid cells exhibiting a reduced immunosuppressive activity...
November 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/29089413/transcriptomes-of-major-renal-collecting-duct-cell-types-in-mouse-identified-by-single-cell-rna-seq
#18
Lihe Chen, Jae Wook Lee, Chung-Lin Chou, Anil V Nair, Maria A Battistone, Teodor G Păunescu, Maria Merkulova, Sylvie Breton, Jill W Verlander, Susan M Wall, Dennis Brown, Maurice B Burg, Mark A Knepper
Prior RNA sequencing (RNA-seq) studies have identified complete transcriptomes for most renal epithelial cell types. The exceptions are the cell types that make up the renal collecting duct, namely intercalated cells (ICs) and principal cells (PCs), which account for only a small fraction of the kidney mass, but play critical physiological roles in the regulation of blood pressure, extracellular fluid volume, and extracellular fluid composition. To enrich these cell types, we used FACS that employed well-established lectin cell surface markers for PCs and type B ICs, as well as a newly identified cell surface marker for type A ICs, c-Kit...
October 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29079819/perturbed-wnt-signaling-leads-to-neuronal-migration-delay-altered-interhemispheric-connections-and-impaired-social-behavior
#19
Riccardo Bocchi, Kristof Egervari, Laura Carol-Perdiguer, Beatrice Viale, Charles Quairiaux, Mathias De Roo, Michael Boitard, Suzanne Oskouie, Patrick Salmon, Jozsef Z Kiss
Perturbed neuronal migration and circuit development have been implicated in the pathogenesis of neurodevelopmental diseases; however, the direct steps linking these developmental errors to behavior alterations remain unknown. Here we demonstrate that Wnt/C-Kit signaling is a key regulator of glia-guided radial migration in rat somatosensory cortex. Transient downregulation of Wnt signaling in migrating, callosal projection neurons results in delayed positioning in layer 2/3. Delayed neurons display reduced neuronal activity with impaired afferent connectivity causing permanent deficit in callosal projections...
October 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/29075963/endoscopic-evaluation-and-management-of-gastric-stromal-tumors
#20
REVIEW
Kambiz Kadkhodayan, Ehsan Rafiq, Robert H Hawes
Purpose of Review Gastrointestinal stromal tumors (GISTs) are both relatively common. Management of these lesions has been challenging with emerging interest in the endoscopic approach for both diagnostic and therapeutic interventions. Recent Findings Although these can be visualized on CT scan, endoscopic ultrasound (EUS) represents the standard method of evaluation and characterization using fine needle aspiration cytology (FNA) when indicated. While EUS-FNA can yield diagnostic cells, full characterization requires a sufficient volume of viable cells to do molecular analysis for c-KIT and determine the mitotic index...
December 2017: Current Treatment Options in Gastroenterology
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