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https://www.readbyqxmd.com/read/28346885/plasma-and-brain-pharmacokinetics-of-ganoderic-acid-a-in-rats-determined-by-a-developed-uflc-ms-ms-method
#1
Fang-Rui Cao, Bing-Xin Xiao, Li-Sha Wang, Xue Tao, Ming-Zhu Yan, Rui-Le Pan, Yong-Hong Liao, Xin-Min Liu, Qi Chang
Ganoderic acid A (GAA), an active triterpenoid of the traditional Chinese herbal medicine Lingzhi, has been reported to exhibit antinociceptive, antioxidative, and anti-cancer activities. The present study aims to establish a sensitive and rapid UPLC-MS/MS method for studying the plasma and brain pharmacokinetics of GAA in rats. The analytes were separated on a C18 column eluted with a gradient mobile phase consisting of acetonitrile and 0.1% aqueous formic acid at 0.3mL/min. The eluate was monitored by a mass detector using an MRM (m/z, 515...
March 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28346727/sulforaphene-enhances-radiosensitivity-of-hepatocellular-carcinoma-through-suppression-of-the-nf-%C3%AE%C2%BAb-pathway
#2
Kewei Ren, Zhen Li, Yahua Li, Wenzhe Zhang, Xinwei Han
Sulforaphene (SFE), a naturally occurring isothiocyanate found in cruciferous vegetables, has attracted increasing attention for its anti-cancer effect in many cancers, including hepatocellular carcinoma (HCC). However, the precise role of SFE in the radiosensitivity of HCC is still unclear. Here, cell proliferation and apoptosis were detected by MTT and flow cytometry assay, respectively. The activity of NF-κB was further evaluated by ELISA. We also observed the effect of SFE and/or radiation on tumor growth...
March 27, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28346520/downregulation-of-mir-139-5p-contributes-to-the-antiapoptotic-effect-of-liraglutide-on-the-diabetic-rat-pancreas-and-ins-1-cells-by-targeting-irs1
#3
Jin Li, Lei Su, Ying-Ying Gong, Mei-Lin Ding, Shu-Bin Hong, Shuang Yu, Hai-Peng Xiao
Liraglutide is administered as glucagon-like peptide-1 (GLP-1) receptor agonist for diabetic patients and can protect pancreatic β-cells by inhibiting their apoptosis. MicroRNA-139-5p (miRNA-139-5p) participates in the regulation of cancer cell apoptosis. However, it is not clear whether miR-139-5p contributes to the anti-apoptotic effect of liraglutide in β-cells. The objective of the present study was to investigate the role of miR-139-5p on apoptosis of pancreatic β-cells. MicroRNA levels in pancreatic tissue from diabetic rats and INS-1 cells treated with liraglutide were measured by real-time quantitative RT-PCR...
2017: PloS One
https://www.readbyqxmd.com/read/28346427/mir-21-is-required-for-anti-tumor-immune-response-in-mice-an-implication-for-its-bi-directional-roles
#4
W He, C Wang, R Mu, P Liang, Z Huang, J Zhang, L Dong
Here we show that miR-21, a microRNA known for its oncogenic activity, is also essential for mediating immune responses against tumor. Knockout of miR-21 in mice slowed the proliferation of both CD4(+) and CD8(+) cells, reduced their cytokine production and accelerated the grafted tumor growth. Further investigations indicated that miR-21 could activate CD4(+) and CD8(+) T cells via the PTEN/Akt pathway in response to stimulations. Taken together, these data suggest the key functions of miR-21 in mediating anti-tumor immune response and thereby uncover a bi-directional role of this traditionally known 'oncomiR' in tumorigenesis...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346422/the-metastatic-suppressor-ndrg1-inhibits-emt-migration-and-invasion-through-interaction-and-promotion-of-caveolin-1-ubiquitylation-in-human-colorectal-cancer-cells
#5
L Mi, F Zhu, X Yang, J Lu, Y Zheng, Q Zhao, X Wen, A Lu, M Wang, M Zheng, J Ji, J Sun
N-myc downstream-regulated gene 1 (NDRG1) has been reported to act as a key regulatory molecule in tumor progression-related signaling pathways, especially in tumor metastasis. However, the related mechanism has not been fully discovered yet. Herein we demonstrated that the novel molecule of cell migration and invasion, caveolin-1, has direct interaction with NDRG1 in human colorectal cancer (CRC) cells. Moreover, we discovered that NDRG1 reduces caveolin-1 protein expression through promoting its ubiquitylation and subsequent degradation via the proteasome in CRC cells...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346412/vista-is-an-inhibitory-immune-checkpoint-that-is-increased-after-ipilimumab-therapy-in-patients-with-prostate-cancer
#6
Jianjun Gao, John F Ward, Curtis A Pettaway, Lewis Z Shi, Sumit K Subudhi, Luis M Vence, Hao Zhao, Jianfeng Chen, Hong Chen, Eleni Efstathiou, Patricia Troncoso, James P Allison, Christopher J Logothetis, Ignacio I Wistuba, Manuel A Sepulveda, Jingjing Sun, Jennifer Wargo, Jorge Blando, Padmanee Sharma
To date, anti-CTLA-4 (ipilimumab) or anti-PD-1 (nivolumab) monotherapy has not been demonstrated to be of substantial clinical benefit in patients with prostate cancer. To identify additional immune-inhibitory pathways in the prostate-tumor microenvironment, we evaluated untreated and ipilimumab-treated tumors from patients in a presurgical clinical trial. Levels of the PD-L1 and VISTA inhibitory molecules increased on independent subsets of macrophages in treated tumors. Our data suggest that VISTA represents another compensatory inhibitory pathway in prostate tumors after ipilimumab therapy...
March 27, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28346375/liposomal-formulations-in-clinical-use-an-updated-review
#7
REVIEW
Upendra Bulbake, Sindhu Doppalapudi, Nagavendra Kommineni, Wahid Khan
Liposomes are the first nano drug delivery systems that have been successfully translated into real-time clinical applications. These closed bilayer phospholipid vesicles have witnessed many technical advances in recent years since their first development in 1965. Delivery of therapeutics by liposomes alters their biodistribution profile, which further enhances the therapeutic index of various drugs. Extensive research is being carried out using these nano drug delivery systems in diverse areas including the delivery of anti-cancer, anti-fungal, anti-inflammatory drugs and therapeutic genes...
March 27, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28346347/biosynthesis-of-%C3%AE-glucosidase-inhibitors-by-a-newly-isolated-bacterium-paenibacillus-sp-tku042-and-its-effect-on-reducing-plasma-glucose-in-a-mouse-model
#8
Van Bon Nguyen, Anh Dzung Nguyen, Yao-Haur Kuo, San-Lang Wang
Paenibacillus sp. TKU042, a bacterium isolated from Taiwanese soil, produced α-glucosidase inhibitors (aGIs) in the culture supernatant when commercial nutrient broth (NB) was used as the medium for fermentation. The supernatant of fermented NB (FNB) showed stronger inhibitory activities than acarbose, a commercial anti-diabetic drug. The IC50 and maximum α-glucosidase inhibitory activities (aGIA) of FNB and acarbose against α-glucosidase were 81 μg/mL, 92% and 1395 μg/mL, 63%, respectively. FNB was found to be strongly thermostable, retaining 95% of its relative activity, even after heating at 100 °C for 30 min...
March 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28346237/current-and-future-pharmacologic-treatment-of-nonalcoholic-steatohepatitis
#9
Bubu A Banini, Arun J Sanyal
PURPOSE OF REVIEW: Nonalcoholic steatohepatitis (NASH), the aggressive form of nonalcoholic fatty liver disease (NAFLD), can progress to cirrhosis and hepatocellular cancer in 5-15% of patients and is rapidly becoming the leading cause for end-stage liver disease. Dietary caloric restriction and exercise, currently the cornerstone of therapy for NAFLD, can be difficult to achieve and maintain, underscoring the dire need for pharmacotherapy. This review presents the agents currently used in managing NAFLD and their pharmacologic targets...
March 24, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28345958/macrophage-elastase-induces-trail-mediated-tumor-cell-death-through-its-carboxyterminal-domain
#10
Nadine Dandachi, Neil J Kelly, John P Wood, Christine L Burton, Josiah E Radder, Adriana S Leme, Alyssa D Gregory, Steven D Shapiro
RATIONALE: Macrophage elastase (MMP12) is a potent protease that contributes to the lung destruction that accompanies cigarette smoking while it simultaneously inhibits lung tumor angiogenesis and metastasis by catalyzing the formation of anti-angiogenic peptides. Recent studies have revealed novel non-proteolytic functions of MMP12, including antimicrobial activity through a peptide within its C-terminal domain (CTD). OBJECTIVES: Our objective was to determine whether the MMP12 CTD contributes to its anti-tumor activity in lung cancer...
March 27, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28345832/metformin-inhibits-migration-and-invasion-of-cholangiocarcinoma-cells
#11
Son Xuan Trinh, Huyen Thi Bich Nguyen, Kween Saimuang, Virapong Prachayasittikul, Waraporn Chan On
Background: Metformin is an oral anti-diabetic agent that has been widely prescribed for treatment of type II diabetes. Anti-cancer properties of metformin have been revealed for numerous human malignancies including cholangiocarcinoma (CCA) with anti-proliferative effects in vitro. However, effects on CCA cell migration and invasion have not been fully investigated. The present study aimed to explore the inhibitory effects of metformin on motility, migration and invasion of the CCA cell line HuCCT1, and examine molecular mechanisms underlying metformin effects...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345650/rational-combination-of-oncolytic-vaccinia-virus-and-pd-l1-blockade-works-synergistically-to-enhance-therapeutic-efficacy
#12
Zuqiang Liu, Roshni Ravindranathan, Pawel Kalinski, Z Sheng Guo, David L Bartlett
Both anti-PD1/PD-L1 therapy and oncolytic virotherapy have demonstrated promise, yet have exhibited efficacy in only a small fraction of cancer patients. Here we hypothesized that an oncolytic poxvirus would attract T cells into the tumour, and induce PD-L1 expression in cancer and immune cells, leading to more susceptible targets for anti-PD-L1 immunotherapy. Our results demonstrate in colon and ovarian cancer models that an oncolytic vaccinia virus attracts effector T cells and induces PD-L1 expression on both cancer and immune cells in the tumour...
March 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28345504/the-association-between-dietary-inflammatory-index-scores-and-the-prevalence-of-colorectal-adenoma
#13
Alyson Haslam, Sara Wagner Robb, James R Hébert, Hanwen Huang, Michael D Wirth, Nitin Shivappa, Mark H Ebell
OBJECTIVE: The Dietary Inflammatory Index (DII)TM, which was developed to characterize the inflammatory potential of a person's diet, has been shown to be associated with inflammatory conditions such as cancer. The present study aimed to investigate the association between DII scores and colorectal adenoma (CRA), a pre-cancerous condition. DESIGN: Responses to baseline dietary questionnaires were used calculate DII scores. In a cross-sectional study design, the association between DII scores and CRA prevalence was determined in men and women separately using logistic regression models...
March 27, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28345468/surface-bound-galectin-4-regulates-gene-transcription-and-secretion-of-chemokines-in-human-colorectal-cancer-cell-lines
#14
U Subrahmanyeswara Rao, Prema S Rao
One long-term complication of chronic intestinal inflammation is the development of colorectal cancer. However, the mechanisms linking inflammation to the colorectal tumorigenesis are poorly defined. Previously, we have demonstrated that galectin-4 is predominantly expressed in the luminal epithelia of the gastrointestinal tract, and its loss of expression plays a key role in the colorectal tumorigenesis. However, the mechanism by which galectin-4 regulates inflammation-induced tumorigenesis is unclear. Here, we show that galectin-4 secreted by the colorectal cancer cell lines was bound to the cell surface...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345466/tumor-associated-calcium-signal-transducer-2-regulates-neovascularization-of-non-small-cell-lung-cancer-via-activating-erk1-2-signaling-pathway
#15
Xiaobin Guo, Xiaoming Zhu, Limin Zhao, Xiao Li, Dongjun Cheng, Keqing Feng
Lung cancer, especially the non-small-cell lung cancer, is a highly aggressive vascular cancer with excessively activated signaling pathways. Tumor-associated calcium signal transducer 2, also known as trop2, was identified to be correlated with tumor proliferation and invasion of non-small-cell lung cancer; however, the biological role of trop2 in neovascularization of non-small-cell lung cancer remained elusive. In this study, we first verified that trop2 was overexpressed in non-small-cell lung cancer tissues as well as cell lines and that the increased expression of trop2 promoted non-small-cell lung cancer cell proliferation and invasion...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345460/coactivator-associated-arginine-methyltransferase-1-promotes-cell-growth-and-is-targeted-by-microrna-195-5p-in-human-colorectal-cancer
#16
Meifeng Zhang, Wei Wu, Ming Gao, Jie Zhang, Xinde Ding, Ronghua Zhu, Haiqun Chen, Zhewei Fei
The pathogenesis of colorectal cancer remains poorly understood. Here, we show that coactivator-associated arginine methyltransferase 1 is frequently upregulated in colorectal cancer tissues and promotes cell growth in vitro and in vivo. Using bioinformatics-based prediction and luciferase reporter system, we found that coactivator-associated arginine methyltransferase 1 is post-transcriptionally targeted by microRNA-195-5p in colorectal cancer. Ectopic expression of microRNA-195-5p led to the suppression of the coactivator-associated arginine methyltransferase 1 3'-untranslated regions activity and downregulation of the endogenous coactivator-associated arginine methyltransferase 1 protein in colorectal cancer cells...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345459/n6-isopentenyladenosine-promoted-hela-cell-apoptosis-through-inhibitions-of-akt-and-transforming-growth-factor-%C3%AE-activated-kinase-1-activation
#17
Miao Li, Yonghao Qi, Jing Wei, Lulu Lu, Xuan Zhao, Lijun Zhou
N6-Isopentenyladenosine, a member of the family of plant hormones, possesses anti-cancer activities on a number of cancer cell lines. However, its mode of action in cervical cancer cell remains poorly understood. Our computational docking studies showed that N6-Isopentenyladenosine could bind with the really interesting new gene domain of tumor necrosis factor receptor-associated factor 6, which is an ubiquitination E3 ligase. Tumor necrosis factor receptor-associated factor 6-mediated ubiquitination is known to activate both protein kinase B (also known as AKT) and transforming growth factor β-activated kinase 1, and the really interesting new gene domain comprises the core of the ubiquitin ligase catalytic domain...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28345336/proteomic-identification-of-eef1a1-as-a-molecular-target-of-curcumol-for-suppressing-metastasis-of-mda-mb-231-cells
#18
Hongyi Qi, Ling Ning, Zanyang Yu, Guojun Dou, Li Li
Curcumol, a major volatile component in Rhizoma Curcumae, exhibited potent anti-metastatic effect on breast cancer cells. However, its molecular mechanism remains poorly understood. In this study, we employed a 2-DE based proteomics to investigate the cellular targets of curcumol in MDA-MB-231 cells, and identified 10 differentially expressed proteins. Moreover, Gene Ontology analysis revealed that those proteins mainly get involved in 9 types of cellular components, 7 different biological processes and 9 kinds of molecular functions, and 35 pathways (p < 0...
March 27, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28345313/acute-hyperglycemia-associated-with-anti-cancer-medication
#19
REVIEW
Yul Hwangbo, Eun Kyung Lee
Hyperglycemia during chemotherapy occurs in approximately 10% to 30% of patients. Glucocorticoids and L-asparaginase are well known to cause acute hyperglycemia during chemotherapy. Long-term hyperglycemia is also frequently observed, especially in patients with hematologic malignancies treated with L-asparaginase-based regimens and total body irradiation. Glucocorticoid-induced hyperglycemia often develops because of increased insulin resistance, diminished insulin secretion, and exaggerated hepatic glucose output...
March 2017: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28345023/enhancement-of-psma-directed-car-adoptive-immunotherapy-by-pd-1-pd-l1-blockade
#20
Inna Serganova, Ekaterina Moroz, Ivan Cohen, Maxim Moroz, Mayuresh Mane, Juan Zurita, Larissa Shenker, Vladimir Ponomarev, Ronald Blasberg
Chimeric antigen receptor (CAR) T cell therapy in hematologic malignancies has shown remarkable responses, but the same level of success has not been observed in solid tumors. A new prostate cancer model (Myc-CaP:PSMA(+)) and a second-generation anti-hPSMA human CAR T cells expressing a Click Beetle Red luciferase reporter) were used to study hPSMA targeting and assess CAR T cell trafficking and persistence by bioluminescence imaging (BLI). We investigated the antitumor efficacy of human CAR T cells targeting human prostate-specific membrane antigen (hPSMA), in the presence and absence of the target antigen; first alone and then combined with a monoclonal antibody targeting the human programmed death receptor 1 (anti-hPD1 mAb)...
March 17, 2017: Molecular Therapy Oncolytics
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