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https://www.readbyqxmd.com/read/28927252/microangiopathic-hemolytic-anemia-caused-by-a-signet-ring-cell-carcinoma-of-the-intrahepatic-bile-duct
#1
Ramy Younes, Paola Ponzo, Alfredo Marzano
Microangiopathic hemolytic anemia (MAHA) originates from a mechanical injury of red cells, caused by vascular thrombosis or stenosis. Cancer is a cause of MAHA as a consequence of both chemotherapy and disseminated disease itself. Here we describe the case of a 60-year-old man who developed a signet-ring cell carcinoma originated from the intrahepatic bile ducts, complicated by bone marrow metastasis and MAHA.
December 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28927250/gut-microbiota-and-the-liver
#2
Alessandro Federico, Marcello Dallio, Giuseppe G Caprio, Vittorio M Ormando, Carmela Loguercio
Nowadays liver diseases represent one of major healthy problems in the world in terms of morbidity and mortality. The high prevalence of liver pathologies represents the key point to understand the necessity to identify the pathogenetic mechanisms that support these disorders in order to nurse them. Alterations of intestinal microbiota seem to play an important role in induction and promotion of liver damage progression, in addition to direct injury resulting from different causal agents. Gut microbiota is considered both as a promoting factor and as a potential therapeutic target of a large number of liver pathologies due to the connection between intestine and liver: the gut-liver axis...
December 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28927159/diagnostic-value-of-inflammatory-cell-infiltrates-tumor-stroma-percentage-and-disease-free-survival-in-patients-with-colorectal-cancer
#3
Katarzyna Jakubowska, Wojciech Kisielewski, Luiza Kańczuga-Koda, Mariusz Koda, Waldemar Famulski
The anticancer immune defense mechanism involves humoral and cellular responses. The main effector mechanisms of antitumor responses involve the following: the activity of cytotoxic T cells; the activation of macrophages and neutrophils; the activity of cytokines secreted by T cells; and natural killer cell activity. Selected cell populations are responsible for the stimulation or suppression of the immune system against tumor cells. Therefore, the aim of the present study was to evaluate the location, extent and composition of the cellular inflammatory infiltration of tumors in patients with colorectal cancer (CRC)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927158/regulation-of-htra2-on-wt1-gene-expression-under-imatinib-stimulation-and-its-effects-on-the-cell-biology-of-k562-cells
#4
Lixia Zhang, Yan Li, Xiaoyan Li, Qing Zhang, Shaowei Qiu, Qi Zhang, Min Wang, Haiyan Xing, Qing Rao, Zheng Tian, Kejing Tang, Jianxiang Wang, Yingchang Mi
The aim of the present study was to investigate the regulation of Wilms Tumor 1 (WT1) by serine protease high-temperature requirement protein A2 (HtrA2), a member of the Htr family, in K562 cells. In addition, the study aimed to observe the effect of this regulation on cell biological functions and its associated mechanisms. Expression of WT1 and HtrA2 mRNA, and proteins following imatinib and the HtrA2 inhibitor 5-[5-(2-nitrophenyl) furfuryl iodine]-1, 3-diphenyl-2-thiobarbituric acid (UCF-101) treatment was detected with reverse transcription-quantitative polymerase chain reaction and western blot analysis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927156/activation-of-%C3%AE-adrenergic-receptor-promotes-cellular-proliferation-in-human-glioblastoma
#5
Jing-Jing He, Wen-Hua Zhang, Shi-Ling Liu, Yi-Fang Chen, Chen-Xi Liao, Qian-Qing Shen, Ping Hu
Glioblastoma multiforme is the most common and aggressive form of primary malignant brain tumor. Previous evidence demonstrates that β-adrenergic receptors (β-ARs) are closely associated with the occurrence and development of brain tumors. However, the functional role of β-ARs in human glioblastoma and the underlying mechanisms are not fully understood. In the present study, by using the MTT assay, western blotting, and the reverse transcription polymerase chain reaction, it was revealed that isoproterenol (ISO), an agonist of β-ARs, promoted the proliferation of U251 cells but not U87-MG cells, and that this effect was blocked by the β-ARs antagonist propranolol...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927154/resistance-to-the-mtor-inhibitor-everolimus-is-reversed-by-the-downregulation-of-survivin-in-breast-cancer-cells
#6
Ludovica Taglieri, Francesca De Iuliis, Anna Giuffrida, Sabrina Giantulli, Ida Silvestri, Susanna Scarpa
Everolimus (RAD001) is an inhibitor of mammalian target of rapamycin used in combination with exemestane to treat hormone receptor-positive advanced breast cancer. However, not all patients are equally sensitive to RAD001 and certain patients develop resistance. Therefore, the present study analyzed the mechanisms involved in the resistance of breast cancer cells to RAD001 in order to identify a potential tool to overcome it. The effects of RAD001 on the inhibition of cell viability, on the induction of apoptosis and autophagy and on the regulation of survivin, an anti-apoptotic protein, were evaluated in two breast cancer cell lines: BT474 (luminal B) and MCF7 (luminal A)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927151/microrna-320-suppresses-cervical-cancer-cell-viability-migration-and-invasion-via-directly-targeting-foxm1
#7
Can Shi, Zhenyu Zhang
Cervical cancer is one of the most common types of gynecological cancer worldwide. MicroRNA-320 (miR-320) has been reported to be downregulated in a number of types of human cancer. However, the expression level and functions of miR-320 in cervical cancer remain unknown. In the present study, miR-320 was identified to be markedly downregulated in cervical cancer tissues and cell lines. For the functional studies, miR-320 mimic or miR-320 inhibitor was introduced into cervical cancer cell lines. The effects of miR-320 on cervical cancer cell viability, migration and invasion were evaluated using MTT, migration and invasion assays, respectively...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927149/microrna-552-promotes-tumor-cell-proliferation-and-migration-by-directly-targeting-dach1-via-the-wnt-%C3%AE-catenin-signaling-pathway-in-colorectal-cancer
#8
Jia Cao, Xiu-Rui Yan, Ting Liu, Xue-Bo Han, Jing-Jing Yu, Shi-Hai Liu, Li-Bin Wang
The purpose of the present study was to analyze the crucial role of microRNAs (miRNAs/miRs) involved in the proliferation and migration of colorectal cancer (CRC) and to investigate their underlying mechanisms. The present study discusses the expression and function of miR-552 in CRC. The expression level of miR-552 in CRC cells and tissues was observed, and it was suggested that the high expression of miR-552 accelerated the proliferation and migration of CRC cells in vitro. Notably, a result of the present study was that the cell fate determination factor Dachshund family transcription factor 1 (DACH1) was identified as a direct target of miR-552...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927141/catalpol-promotes-cellular-apoptosis-in-human-hct116-colorectal-cancer-cells-via-microrna-200-and-the-downregulation-of-pi3k-akt-signaling-pathway
#9
Lan Liu, Hongwei Gao, Hongbo Wang, Yuan Zhang, Weihua Xu, Sen Lin, Hongjuan Wang, Qiong Wu, Jianqiang Guo
Catalpol is an effective active ingredient that functions as a diuretic and laxative, and exhibits blood sugar-lowering, liver protective, anti-aging and anticancer effects. In traditional Chinese medicine, catalpol is believed to be Yin nourishing. The anticancer effect of catalpol on human HCT116 colorectal cancer cells were investigated and the mechanism of action was evaluated. Cellular viability was detected using an MTT assay. Caspase-3 and caspase-9 activity, cellular apoptosis and nucleic morphology were analyzed using caspase-3 and caspase-9 activity assay kits, flow cytometric assays and DAPI staining assay, respectively...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927140/itraq-coupled-2d-lc-ms-ms-analysis-of-cxcr7-transfected-papillary-thyroid-carcinoma-cells-a-new-insight-into-cxcr7-regulation-of-papillary-thyroid-carcinoma-progression-and-identification-of-potential-biomarkers
#10
Hengwei Zhang, Lei Yang, Zhangyi Liu, Chenxi Liu, Xuyong Teng, Lei Zhang, Bo Yin, Zhen Liu
Previous studies have demonstrated that C-X-C chemokine receptor type 7 (CXCR7) regulates papillary thyroid carcinoma (PTC) growth and metastasis; however, the molecular mechanisms underlying this regulation remain unclear. In the present study, the protein expression profiles of the PTC cell line GLAG-66 and GLAG-66 cells stably transfected with CXCR7 cDNA were analyzed and compared using isobaric tag for relative and absolute quantification-coupled two-dimensional liquid chromatography-tandem mass spectrometry...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927138/c-jun-mediated-%C3%AE-1-3-n-acetylglucosaminyltransferase-8-expression-a-novel-mechanism-regulating-the-invasion-and-metastasis-of-colorectal-carcinoma-cells
#11
Chunliang Liu, Hao Qiu, Meiyun Yu, Zerong Wang, Yaqin Yuan, Zhi Jiang, Xuejun Shao, Dong Hua, Min Liu, Shiliang Wu
β-1,3-N-Acetylglucosaminyltransferase 8 (β3GnT8) is a key enzyme that catalyzes the formation of polylactosamine glycan structures by transferring GlcNAc to tetra-antennary β1-6-branched N-glycans, and it has been reported to participate in tumor invasion and metastasis by regulating the expression of matrix metalloproteinases (MMPs), cluster of differentiation 147 (CD147) and polylactosamine. By contrast, the role of transcription factor c-Jun in cell cycle progression has been well established. c-Jun has an important role in tumor cell invasion and metastasis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927129/deficiency-of-gap-junction-composed-of-connexin43-contributes-to-oxaliplatin-resistance-in-colon-cancer-cells
#12
Min Su, Qi Zhang
Although comprehensive strategies in the treatment of colorectal cancer have been developed for a number of years, the five-year survival rate of metastatic colon cancer remains less than 10%. Oxaliplatin, a commonly used chemotherapeutic agent for metastatic colon cancer, improves the response rate of patients and prolongs patients' progression-free survival. However, the generation of resistance limits the clinical application of oxaliplatin, and the mechanisms of this remain unclear. The present study mainly investigated the effect of the gap junction (GJ) composed of connexin43 (Cx43) on oxaliplatin cytotoxicity in colon cancer cells...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927122/mechanism-of-egcg-promoting-apoptosis-of-mcf-7-cell-line-in-human-breast-cancer
#13
Chao-You Huang, Zheng Han, Xi Li, Hui-Hua Xie, Shan-Shan Zhu
The aim of the present study was to investigate the effects of epigallocatechin-3-gallate (EGCG) on the apoptosis of the human MCF-7 cancer cell line and the underlying mechanism. MCF-7 cells were divided into the control group and EGCG groups. The proliferation of MCF-7 cells in the two groups was determined using MTT and apoptosis was examined using flow cytometry. Western blot analysis and qRT-PCR were used to analyze P53 and Bcl-2 expression levels. The silencing effect of specific siRNA was evaluated using RT-PCR and western blot analysis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927121/the-role-of-jagged1-notch-pathway-mediated-angiogenesis-of-hepatocarcinoma-cells-in-vitro-and-the-effects-of-the-spleen-invigorating-and-blood-stasis-removing-recipe
#14
Juze Lin, Yongxin Lin, Le Su, Qiao Su, Wei Guo, Xuhui Huang, Changjun Wang, Lizhu Lin
The objective of this study was to observe the effect of Jagged1/Notch pathway-mediated angiogenesis on the in vitro proliferation of hepatocellular carcinoma cells, and the effect and possible mechanism of the spleen-invigorating and blood stasis-removing recipe. Spleen-invigorating and blood stasis-removing recipe serum from SPF grade nude mice was prepared, and the fingerprint of the drugs of the spleen-invigorating and blood stasis-removing recipe and drug serum were identified by HPLC. SMMC-7721 human hepatocellular carcinoma cells were divided into the normal control group, DAPT inhibitor control group, and drug serum group according to the different treatments...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927117/salvia-miltiorrhiza-extract-inhibits-tpa-induced-mmp-9-expression-and-invasion-through-the-mapk-ap-1-signaling-pathway-in-human-breast-cancer-mcf-7-cells
#15
Jeong-Mi Kim, Eun-Mi Noh, Hyun-Kyung Song, Minok Lee, Soo Ho Lee, Sueng Hyuk Park, Chan-Keun Ahn, Guem-San Lee, Eui-Baek Byun, Beom-Su Jang, Kang-Beom Kwon, Young-Rae Lee
Cancer cell invasion is crucial for metastasis. A major factor in the capacity of cancer cell invasion is the activation of matrix metalloproteinase-9 (MMP-9), which degrades the extracellular matrix. Salvia miltiorrhiza has been used as a promotion for blood circulation to remove blood stasis. Numerous previous studies have demonstrated that S. miltiorrhiza extracts (SME) decrease lipid levels and inhibit inflammation. However, the mechanism behind the effect of SME on breast cancer invasion has not been identified...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927115/wee1-inhibition-by-mk1775-as-a-single-agent-therapy-inhibits-ovarian-cancer-viability
#16
Minghui Zhang, Donye Dominguez, Siqi Chen, Jie Fan, Lei Qin, Alan Long, Xia Li, Yi Zhang, Huirong Shi, Bin Zhang
Wee1-like protein kinase (WEE1) physiologically serves a key function in maintaining the integrity of the cell genome through mediating the activation of cyclin-dependent kinase (CDK)1 and CDK2. Increased expression of WEE1 has been associated with the poor prognosis of patients with ovarian cancer. The present study aimed at examining the in vitro and in vivo antitumor activity of MK1775, a potent pharmacological inhibitor of WEE1, as a single agent against ovarian cancer cells. The cytotoxicity of MK1775 was examined in a panel of tumor cells using MTT in vitro...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927111/luteolin-reduces-migration-of-human-glioblastoma-cell-lines-via-inhibition-of-the-p-igf-1r-pi3k-akt-mtor-signaling-pathway
#17
Qiang Wang, Handong Wang, Yue Jia, Hui Ding, Li Zhang, Hao Pan
Luteolin (3',4',5,7-tetrahydroxyflavone) is a common dietary flavonoid, which has been demonstrated to exert anticancer effects in multiple cancer models. However, the detailed mechanisms underlying the inhibitory effect of luteolin on glioblastoma cell metastasis remain poorly understood. The present study assessed the effects of luteolin in the U251MG and U87MG human glioblastoma cell lines. Luteolin treatment significantly inhibited glioblastoma cell migration, and this effect was associated with downregulated matrix metalloproteinase (MMP)-2, MMP-9 and upregulated tissue inhibitor of metalloproteinase (TIMP)-1 and TIMP-2...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927105/reactive-oxygen-species-driven-mitochondrial-injury-induces-apoptosis-by-teroxirone-in-human-non-small-cell-lung-cancer-cells
#18
Jing-Ping Wang, Chang-Heng Hsieh, Chun-Yen Liu, Kai-Han Lin, Pei-Tsun Wu, Kwun-Min Chen, Kang Fang
Teroxirone as an anticancer agent is used to treat human lung cancer by inducing apoptotic cell death. Previous studies have demonstrated that the status of the tumor suppressor p53 determined the onset of apoptotic cell death in human non-small cell lung cancer cells (NSCLC). In order to further understand the underlying mechanisms of lung cancer, the present study explored the targets of teroxirone. By including antioxidants, the present study analyzed changes in cell proliferation, cell cycle division, mitochondrial membrane potential (MMP), reactive oxygen species (ROS), expression of apoptosis markers and cytochrome c distribution...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927100/hsa-mir-599-suppresses-the-migration-and-invasion-by-targeting-brd4-in-breast-cancer
#19
Yonghui Wang, Yana Sui, Qinwei Zhu, Xiaomei Sui
Breast cancer is the second leading cause of cancer-associated mortality in females in the USA. Hsa-miR-599 was demonstrated to function as a tumour suppressor during cancer progression. However, the function and mechanism of the hsa-miR-599 in human breast cancer remain elusive. Thus, the aim of the present study was to investigate the potential role of hsa-miR-599 in breast cancer biology. The expression levels of hsa-miR-599 in 40 pairs of surgical specimens and human breast cancer cell lines were detected using quantitative polymerase chain reaction analysis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927098/notch-1-is-a-valuable-therapeutic-target-against-cell-survival-and-proliferation-in-clear-cell-renal-cell-carcinoma
#20
Zhiming Zhuang, Jiangui Lin, Yiqun Huang, Tianqi Lin, Zhouda Zheng, Xudong Ma
Notch 1 is a key component of the Notch pathway, which performs a crucial role in clear cell renal cell carcinoma (CCRCC) development. The present study aimed to investigate whether Notch 1 could serve as a potential target for CCRCC treatment. Firstly, an association analysis was performed using 52 CCRCC cases and 30 normal controls. The results indicated that Notch 1 protein expression in renal tissues was closely associated with the incidence of CCRCC. In addition, higher Notch 1 expression in CCRCC tissues was positively associated with higher tumor-node-metastasis stage and Fuhrman grade, in addition to larger tumor size...
September 2017: Oncology Letters
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