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https://www.readbyqxmd.com/read/28627654/bioinformatics-analysis-of-transcription-profiling-of-solid-pseudopapillary-neoplasm-of-the-pancreas
#1
Yongping Zhang, Xu Han, Hao Wu, Yifeng Zhou
Solid pseudopapillary neoplasm (SPN) of the pancreas is a low-grade malignant neoplasm that accounts for ~5% of cystic pancreatic tumors and ~0.9‑2.7% of exocrine pancreatic tumors. The transcription profiling data (GSE43795) of 14 SPN and 6 control samples were downloaded from the Gene Expression Omnibus (GEO) database. Using the Limma package, Student's t‑tests were performed to identify differentially expressed genes (DEGs) between SPN and control samples [with the following criterion: False discovery rate (FDR)<0...
June 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28625979/intestine-specific-homeobox-gene-isx-integrates-interleukin-6-signaling-tryptophan-catabolism-and-immune-suppression
#2
Li-Ting Wang, Shyh-Shin Chiou, Chee-Yin Chai, Edward Hsi, Kazunari K Yokoyama, Shen-Nien Wang, Shau-Ku Huang, Shih-Hsien Hsu
The intestine-specific homeobox transcription factor ISX is an IL-6-inducible proto-oncogene implicated in the development of hepatocellular carcinoma (HCC), but its mechanistic contributions to this process are undefined. In this study, we provide evidence that ISX mediates a positive feedback loop integrating inflammation, tryptophan cataboism and immune suppression. We found that ISX mediated IL-6-induced expression of the tryptophan catabolic enzymes IDO1 and TDO2 in HCC cells, resulting in an ISX-dependent increase in the tryptophan catabolite kynurenine and its receptor aryl hydrocarbon receptor (AHR)...
June 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/28624192/stimuli-responsive-mesoporous-silica-nps-as-non-viral-dual-sirna-chemotherapy-carriers-for-triple-negative-breast-cancer
#3
REVIEW
Behrad Darvishi, Leila Farahmand, Keivan Majidzadeh-A
Triple negative breast cancer (TNBC) is the most aggressive and lethal subtype of breast cancer. It is associated with a very poor prognosis and intrinsically resistant to several conventional and targeted chemotherapy agents and has a 5-year survival rate of less than 25%. Because the treatment options for TNBC are very limited and not efficient enough for achieving minimum desired goals, shifting toward a new generation of anti-cancer agents appears to be very critical. Among recent alternative approaches being proposed, small interfering RNA (siRNA) gene therapy can potently suppress Bcl-2 proto-oncogene and p-glycoprotein gene expression, the most important chemotherapy resistance inducers in TNBC...
June 16, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28623929/the-potential-regulatory-mechanisms-of-the-gonadotropin-releasing-hormone-in-gonadotropin-transcriptions-identified-with-bioinformatics-analyses
#4
Wei Xiang, Baoyun Zhang, Fenglin Lv, Guangde Feng, Long Chen, Fang Yang, Ke Zhang, Chunyu Cao, Pingqing Wang, Mingxing Chu
BACKGROUND: The regulation of gonadotropin synthesis and release by gonadotropin-releasing hormone (GnRH) plays an essential role in the neuroendocrine control of reproduction. However, the mechanisms underlying gonadotropin regulation by GnRH pulse frequency and amplitude are still ambiguous. This study aimed to explore the molecular mechanisms and biological pathways associated with gonadotropin synthesis by GnRH pulse frequencies and amplitudes. METHODS: Using GSE63251 datasets downloaded from the Gene Expression Omnibus (GEO), differentially expressed genes (DEGs) were screened by comparing the RNA expression from the GnRH pulse group, the GnRH tonic group and the control group...
June 17, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28622887/genetic-etiology-of-oral-cancer
#5
REVIEW
Johar Ali, Bibi Sabiha, Hanif Ullah Jan, Syed Adnan Haider, Abid Ali Khan, Saima S Ali
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer worldwide. It accounts for 2.5% of all new cancer cases and 1.9% of all cancer deaths annually. More than 90% of oral cancers (occurring in the mouth, lip, and tongue) are oral squamous cell carcinoma. The incidence rate of oral cancer varies widely throughout the world, with an evident prevalence in South Asian countries. This high incidence occurs in correlation with oral cancer-associated behaviors such as alcohol, tobacco use...
July 2017: Oral Oncology
https://www.readbyqxmd.com/read/28616588/all-for-one-and-fosl1-for-all-fosl1-at-the-crossroads-of-lung-and-pancreatic-cancer-driven-by-mutant-kras
#6
Adrian Vallejo, Karmele Valencia, Silvestre Vicent
KRAS proto-oncogene, GTPase (KRAS) remains refractory to current therapies. We devised an integrative cross-tumor approach to expose common core elements up-regulated in mutant KRAS cancers that could provide new treatment opportunities. This approach identified FOSL1 (Fos-like antigen 1) as a clinically and functionally relevant gene in mutant KRAS-driven lung and pancreatic cancers, and unveiled downstream transcriptional targets amenable to pharmacological inhibition.
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28607598/the-prognostic-value-of-tyrosine-kinase-src-expression-in-locally-advanced-rectal-cancer
#7
Felix Rühlmann, Manuel Nietert, Thilo Sprenger, Hendrik A Wolff, Kia Homayounfar, Peter Middel, Hanibal Bohnenberger, Tim Beissbarth, B Michael Ghadimi, Torsten Liersch, Lena-Christin Conradi
The cellular sarcoma gene (SRC) is a proto-oncogene encoding for a tyrosine kinase. SRC expression was determined in locally advanced rectal adenocarcinoma tissue from pretreatment biopsies and resection specimens. The expression level was correlated with clinicopathological parameters to evaluate the predictive and prognostic capacity. For this monocentric analysis 186 patients with locally advanced rectal cancer (median: 63.7 years; 130 men (69.9%), 56 women (30.1%)) were included. Patients with a carcinoma of the upper third of the rectum were treated with primary tumor resection (n=27; 14...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28599473/colorectal-cancer-in-cases-of-multiple-primary-cancers-clinical-features-of-59-cases-and-point-mutation-analyses
#8
Anshan Wu, Siqi He, Jingjing Li, Ling Liu, Chunlan Liu, Qi Wang, Xiaowei Peng, Jianda Zhou, Pei-Guo Cao, Ke Cao
The present study aimed to investigate the occurrence and clinical features of cases of multiple primary cancers including colorectal cancer (MPCC). The medical records of patients with colorectal cancer (CRC) who underwent surgery at the Third Xiangya Hospital of Central South University (Changsha, China) between August 2007 and August 2014 were retrospectively analyzed. Patients with MPCCs were identified and mutation analyses were performed on colon specimens. The results revealed that among 1,311 patients with CRC, 59 had MPCC (including 35 cases of ≥1 CRC with ≥1 other cancer type, and 24 cases with multiple CRCs and no other primary cancers)...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599438/androgen-deprivation-therapy-has-no-effect-on-pim-1-expression-in-a-mouse-model-of-prostate-cancer
#9
Jiang Wang, Gang Li, Bo Li, Hualin Song, Zhiqun Shang, Ning Jiang, Yuanjie Niu
The aim of the present study was to observe the dynamic changes of proto-oncogene, serine/threonine kinase, Pim-1 at the gene and protein level in a mouse model of prostate cancer following surgical castration. Using LNCaP cells to establish a subcutaneous xenograft model and orthotopic prostate cancer BALB/c nude mouse models, the xenograft models were divided into an androgen-dependent prostate cancer group (ADPC), an androgen deprivation therapy (ADT) group and an androgen independent prostate cancer (AIPC) group...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28599435/expression-of-regulatory-factor-x1-can-predict-the-prognosis-of-breast-cancer
#10
Masahiro Shibata, Mitsuro Kanda, Dai Shimizu, Haruyoshi Tanaka, Shinichi Umeda, Masamichi Hayashi, Takahiro Inaishi, Noriyuki Miyajima, Yayoi Adachi, Yuko Takano, Kenichi Nakanishi, Dai Takeuchi, Sumiyo Noda, Yasuhiro Kodera, Toyone Kikumori
Breast cancer (BC) is the most common malignancy among women. Identifying novel biomarkers to predict prognosis accurately is important in managing this disease. The regulatory factor X1 (RFX1) gene is a member of the regulatory factor X gene family. Its protein reportedly downregulates the proto-oncogene c-myc, but its role in BC has been unclear. In this study, expression and methylation status of RFX1 were determined in BC cell lines. We then evaluated RFX1 mRNA expression levels with regard to clinicopathological factors including postoperative prognosis in 167 patients with BC...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597750/muc1-induces-tamoxifen-resistance-in-estrogen-receptor-positive-breast-cancer
#11
Parnaz Merikhian, Reyhane Ghadirian, Leila Farahmand, Sepideh Mansouri, Keivan Majidzadeh-A
Tamoxifen, as an essential therapeutic tool in the treatment of estrogen receptor-positive breast cancer, has been available for the past three decades and is currently being utilized as a chemo-preventive agent for patients at high risk for breast carcinoma. However, the induction of chemo-resistance during therapy has indicated a significant challenge with regards to this agent. Areas covered: This review enumerates the role of MUC1-C proto-oncogene in tamoxifen resistance and describes a number of signaling pathways by which MUC1-C would mediate the development of resistance...
June 21, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28593150/the-antitumor-effect-of-c-terminus-of-hsp70-interacting-protein-via-degradation-of-c-met-in-small-cell-lung-cancer
#12
Sung Ho Cho, Jong In Kim, Hyun Su Kim, Sung Dal Park, Kang Won Jang
BACKGROUND: The mesenchymal-epithelial transition factor (MET) receptor can be overexpressed in solid tumors, including small cell lung cancer (SCLC). However, the molecular mechanism regulating MET stability and turnover in SCLC remains undefined. One potential mechanism of MET regulation involves the C-terminus of Hsp70-interacting protein (CHIP), which targets heat shock protein 90-interacting proteins for ubiquitination and proteasomal degradation. In the present study, we investigated the functional effects of CHIP expression on MET regulation and the control of SCLC cell apoptosis and invasion...
June 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28592861/genomic-admixture-tracks-pulses-of-economic-activity-over-2-000-years-in-the-indian-ocean-trading-network
#13
Nicolas Brucato, Pradiptajati Kusuma, Philippe Beaujard, Herawati Sudoyo, Murray P Cox, François-Xavier Ricaut
The Indian Ocean has long been a hub of interacting human populations. Following land- and sea-based routes, trade drove cultural contacts between far-distant ethnic groups in Asia, India, the Middle East and Africa, creating one of the world's first proto-globalized environments. However, the extent to which population mixing was mediated by trade is poorly understood. Reconstructing admixture times from genomic data in 3,006 individuals from 187 regional populations reveals a close association between bouts of human migration and trade volumes during the last 2,000 years across the Indian Ocean trading system...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590920/hcarg-commd5-inhibits-erbb-receptor-driven-renal-cell-carcinoma
#14
Hiroyuki Matsuda, Carole G Campion, Kyoko Fujiwara, Jin Ikeda, Suzanne Cossette, Thomas Verissimo, Maiko Ogasawara, Louis Gaboury, Kosuke Saito, Kenya Yamaguchi, Satoru Takahashi, Morito Endo, Noboru Fukuda, Masayoshi Soma, Pavel Hamet, Johanne Tremblay
Hypertension-related, calcium-regulated gene (HCaRG/COMMD5) is highly expressed in renal proximal tubules, where it contributes to the control of cell proliferation and differentiation. HCaRG accelerates tubular repair by facilitating re-differentiation of injured proximal tubular epithelial cells, thus improving mouse survival after acute kidney injury. Sustained hyper-proliferation and de-differentiation are important hallmarks of tumor progression. Here, we demonstrate that cancer cells overexpressing HCaRG maintain a more differentiated phenotype, while several of them undergo autophagic cell death...
May 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28589362/determining-the-origin-of-human-germinal-center-b-cell-derived-malignancies
#15
Marc Seifert, Ralf Küppers
Most human B cell lymphomas originate from germinal center (GC) B cells. This is partly caused by the high proliferative activity of GC B cells and the remodeling processes acting at the immunoglobulin (Ig) loci of these cells, i.e., somatic hypermutation and class-switching. Mistargeting of these processes can cause chromosomal translocations, and the hypermutation machinery may also target non-Ig genes. As somatic hypermutation is exclusively active in GC B cells, the presence of somatic mutations in rearranged IgV genes is a standard criterium for a GC or post-GC B cell origin of lymphomas...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28588701/aberrant-expression-of-aid-and-aid-activators-of-nf-%C3%AE%C2%BAb-and-pax5-is-irrelevant-to-ebv-associated-gastric-cancers-but-is-associated-with-carcinogenesis-in-certain-ebv-non-associated-gastric-cancers
#16
Takashi Mohri, Keiko Nagata, Satoshi Kuwamoto, Michiko Matsushita, Hirotsugu Sugihara, Masako Kato, Yasushi Horie, Ichiro Murakami, Kazuhiko Hayashi
Epstein-Barr virus-associated gastric carcinoma (EBVaGC) is a distinct subtype of gastric cancer characterized by clinicopathological features including lymphoepithelioma-like histology. Aberrant expression of activation-induced cytidine deaminase (AID) as a genomic modulator was demonstrated through pathogen-related nuclear factor κB (NF-κB) signaling in Helicobacter pylori-associated gastric cancer. To elucidate whether or not AID expression is relevant to carcinogenesis in EBVaGC, immunohistochemical expression of AID and AID-regulatory factors between EBVaGC and EBV-non-associated gastric carcinoma (GC) were evaluated, each using 15 cases of GC with lymphoid stroma (GCLS) and other types of GC...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28586056/microrna-497-acts-as-a-tumor-suppressor-in-gastric-cancer-and-is-downregulated-by-dna-methylation
#17
Jichao Liu, Yongshuang Li, Ying Zou, Jiakui Zhang, Jiaxiang An, Jiao Guo, Minghui Ma, Dongqiu Dai
Gastric cancer (GC) is one of the most common malignant tumors in the world and microRNAs (miRNAs) play an important role in GC. In this study, we found miR‑497 played an important role and served as a novel biomarker in GC. Quantitative real-time PCR (qRT-PCR) was used to measure the miR‑497 expression in GC cell lines and 86 paired GC samples and we also analyzed its correlation with GC clinicopathological parameters. A series of cellular function experiments were applied to validate the effects of miR‑497 on GC...
June 6, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28586003/lymphotoxin-%C3%AE-receptor-activation-promotes-mrna-expression-of-rela-and-pro-inflammatory-cytokines-tnf%C3%AE-and-il-1%C3%AE-in-bladder-cancer-cells
#18
Mo Shen, Lianlian Zhou, Ping Zhou, Wu Zhou, Xiangyang Lin
The role of inflammation in tumorigenesis and development is currently well established. Lymphotoxin β receptor (LTβR) activation induces canonical and noncanonical nuclear factor (NF)‑κB signaling pathways, which are linked to inflammation‑induced carcinogenesis. In the present study, 5,637 bladder cancer cells were cultured and the activation of LTβR was induced by functional ligand, lymphotoxin (LT) α1β2, and silencing with shRNA. Reverse transcription‑quantitative polymerase chain reaction was utilized to detect the mRNA expression levels of NF‑κB family members RelA and RelB, cytokines including LTα, LTβ, tumor necrosis factor (TNF)α, TNF superfamily member 14, interleukin (IL)‑6 and IL‑1β, and proliferation‑related genes including CyclinD1 and Survivin...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28584637/identification-of-global-transcriptome-abnormalities-and-potential-biomarkers-in-eutopic-endometria-of-women-with-endometriosis-a-preliminary-study
#19
Luyang Zhao, Chenglei Gu, Mingxia Ye, Zhe Zhang, Weidong Han, Wensheng Fan, Yuanguang Meng
The etiology and pathophysiology of endometriosis remain unclear. The aim of the current study was to identify a candidate pathogenic gene, as well as potential biomarkers of endometriosis using messenger RNA (mRNA) sequencing (mRNA-seq). Twenty-three eutopic endometria from women with endometriosis and 20 endometria from control subjects were investigated. Eight eutopic endometria and five normal endometria were selected for mRNA-seq. Differentially expressed genes (DEGs) were identified and functional analysis was conducted...
June 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28577549/whole-exome-sequencing-of-an-asbestos-induced-wild-type-murine-model-of-malignant-mesothelioma
#20
Sophie Sneddon, Ann-Marie Patch, Ian M Dick, Stephen Kazakoff, John V Pearson, Nicola Waddell, Richard J N Allcock, Robert A Holt, Bruce W S Robinson, Jenette Creaney
BACKGROUND: Malignant mesothelioma (MM) is an aggressive cancer of the pleural and peritoneal cavities caused by exposure to asbestos. Asbestos-induced mesotheliomas in wild-type mice have been used extensively as a preclinical model because they are phenotypically identical to their human counterpart. However, it is not known if the genetic lesions in these mice tumours are similar to in the human disease, a prerequisite for any new preclinical studies that target genetic abnormalities...
June 2, 2017: BMC Cancer
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