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https://www.readbyqxmd.com/read/27910778/mirsnps-of-mir1274-and-mir3202-genes-that-target-mecp2-and-dnmt3b-are-associated-with-lung-cancer-risk-a-study-conducted-on-massarray-genotyping
#1
Cansu Ozbayer, Irfan Degirmenci, Derya Ustuner, Guntulu Ak, Faruk Saydam, Ertugrul Colak, Hasan Veysi Gunes, Muzaffer Metintas
Genetic variants of miRNAs that target DNMTs and MBDs involved in DNA methylation were scanned with current databases, and 35 miRSNPs in 22 miRNA genes were identified. The aim of the study was to determine the association between these variants of miRNA genes and lung cancer (LC). DNA samples were isolated from blood samples and genotyped using a Sequenom MassARRAY System. An association between the rs188912830 gene variant of miR3202 that targets the MeCP2 protein and LC was indicated in both subtypes. The presence of the C-allele in patients with LC and its subtypes was significantly lower, and the absence of the C-allele was determined to increase the risk of LC by 7,429-times compared to the presence (p=0,010)...
2016: Journal of Environmental Pathology, Toxicology and Oncology
https://www.readbyqxmd.com/read/27910063/epidemiology-of-endometrial-carcinoma-etiologic-importance-of-hormonal-and-metabolic-influences
#2
Ashley S Felix, Hannah P Yang, Daphne W Bell, Mark E Sherman
Endometrial carcinoma is the most common gynecologic cancer in developed nations, and the annual incidence is projected to increase, secondary to the high prevalence of obesity, a strong endometrial carcinoma risk factor. Although endometrial carcinomas are etiologically, biologically, and clinically diverse, hormonal and metabolic mechanisms are particularly strongly implicated in the pathogenesis of endometrioid carcinoma, the numerically predominant subtype. The centrality of hormonal and metabolic disturbances in the pathogenesis of endometrial carcinoma, combined with its slow development from well-characterized precursors in most cases, offers a substantial opportunity to reduce endometrial carcinoma mortality through early detection, lifestyle modification, and chemoprevention...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27909907/obesity-and-ovarian-cancer
#3
Shelley S Tworoger, Tianyi Huang
Ovarian cancer is the most fatal gynecologic cancer and is an important source of cancer-related mortality, particularly in developed countries. Despite substantial research examining adiposity (primarily adult body mass index [BMI]), the overall evidence suggests only a weak positive association between adiposity and risk of ovarian cancer, with stronger associations observed for population-based case-control studies compared to prospective studies. Ovarian cancer is not one disease and emerging data suggest that higher BMI may only be associated with risk of certain histologic subtypes, including low-grade serous and invasive mucinous tumors...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909905/obesity-and-endometrial-cancer
#4
Eileen Shaw, Megan Farris, Jessica McNeil, Christine Friedenreich
Endometrial cancer is the sixth most common cancer in women worldwide and the most common gynecologic malignancy in the developed world. This chapter explores the current epidemiologic evidence on the association between obesity and endometrial cancer risk and mortality. Using body mass index (BMI) as a measure of obesity, we found that obesity (defined as BMI > 30 and < 35 kg/m(2)) was associated with a 2.6-fold increase in endometrial cancer risk, while severe obesity (BMI > 35 kg/m(2)) was associated with a 4...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909903/obesity-and-kidney-cancer
#5
Kathryn M Wilson, Eunyoung Cho
Renal cell cancer (RCC) is the major type of kidney cancer with increasing incidence. Obesity is one of the well-established risk factors for RCC. Meta-analyses including multiple cohort and case-control studies have found a consistent positive association between obesity and RCC. The association appeared to be independent of other RCC risk factors including hypertension and has been often stronger in women, although a positive association has also been observed in men. Obesity has been largely measured as body mass index (BMI)...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27909719/the-expression-and-function-of-epithelial-membrane-protein-1-in-laryngeal-carcinoma
#6
Hong Li, Xiaowen Zhang, Xuejun Jiang, Xu Ji
In this study, we compared the expression of epithelial membrane protein 1 (EMP1) on the steady-state mRNA level (by quantitative real-time PCR) and on the protein level (by western immunoblot and immunohistochemistry) in 51 pairs of laryngeal carcinoma tissues and matched cancer-free peritumor tissues, and we analyzed the correlation between EMP1 expression and different clinicopathological factors. Furthermore, we ectopically expressed EMP1 in human laryngeal carcinoma Hep-2 cells and examined the effects on cell viability, apoptosis, colonogenicity, and motility, by MTT assay, flow cytometry, colony formation assay and Transwell migration assay, respectively...
November 28, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27908980/phase-2-study-of-eribulin-in-patients-with-previously-treated-advanced-or-metastatic-soft-tissue-sarcoma
#7
Akira Kawai, Nobuhito Araki, Yoichi Naito, Toshifumi Ozaki, Hideshi Sugiura, Yasuo Yazawa, Hideo Morioka, Akihiko Matsumine, Kenichi Saito, Shun Asami, Kazuo Isu
OBJECTIVE: Eribulin, a microtubule dynamics inhibitor, is approved for the treatment of patients with breast cancer and soft tissue sarcoma. We investigated the efficacy and safety of eribulin in Japanese patients with soft tissue sarcoma. METHODS: This open-label, multicenter, nonrandomized, Phase 2 study enrolled Japanese patients with measurable, advanced/metastatic soft tissue sarcoma of high/intermediate grade and ≥1 prior chemotherapy for advanced disease...
December 1, 2016: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27906681/sirna-mediated-suppression-of-collagen-type-iv-alpha-2-col4a2-mrna-inhibits-triple-negative-breast-cancer-cell-proliferation-and-migration
#8
He Jing Song, Guan Hong, Jianbo Yang, Zheng Duo, Fu Li, Chen Wei Cai, Luo Xue Ying, Mao You Sheng, Ou Yang YiWen, Pan Yue, Chang Zou
Triple-negative breast cancer (TNBC) is more aggressive than other breast cancer subtypes. Collagen type IV alpha 2 (COL4A2), a major component of the basement membrane, dynamically influences a wide range of biological processes, including cancer pathogenesis and progression. This study evaluated the effects of COL4A2 siRNA delivered by lentiviral vector to TNBC cells. COL4A2 siRNA lenti-viral vector was constructed and transfected into MDA-MB-231 and MDA-MB-468 cells. The COL4A2 mRNA levels were quantified by RT-PCR...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27906674/nuclear-localization-of-the-ck2%C3%AE-subunit-correlates-with-poor-prognosis-in-clear-cell-renal-cell-carcinoma
#9
Maj Rabjerg, Barbara Guerra, Aida Oliván-Viguera, Minne Line Nedergaard Mikkelsen, Ralf Köhler, Olaf-Georg Issinger, Niels Marcussen
Protein kinase CK2α, one of the two catalytic isoforms of the protein kinase CK2 has been shown to contribute to tumor development, tumor proliferation and suppression of apoptosis in various malignancies. We conducted this study to investigate CK2 expression in different subtypes of Renal Cell Carcinoma (RCC) and in the benign oncocytoma. qRT-PCR, immunohistochemistry and Western blot analyses revealed that CK2α expression was significantly increased at the mRNA and protein levels in clear cell RCC (ccRCC)...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27906095/resveratrol-and-acetyl-resveratrol-modulate-activity-of-vegf-and-il-8-in-ovarian-cancer-cell-aggregates-via-attenuation-of-the-nf-%C3%AE%C2%BAb-protein
#10
Alexandria B Tino, Kenny Chitcholtan, Peter H Sykes, Ashley Garrill
BACKGROUND: Key features of advanced ovarian cancer include metastasis via cell clusters in the abdominal cavity and increased chemoresistance. Resveratrol and derivatives of resveratrol have been shown to have antitumour properties. The purpose of this study was to investigate the effect of resveratrol and acetyl-resveratrol on 3D cell aggregates of ovarian cancer, and establish if NF-κB signalling may be a potential target. METHODS: Poly-HEMA coated wells were used to produce 3D aggregates of two ovarian cancer cell lines, SKOV-3 and OVCAR-5...
December 1, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27905110/distinct-molecular-landscapes-between-endometrioid-and-non-endometrioid-uterine-carcinomas
#11
Nathaniel L Jones, Joanne Xiu, Sudeshna Chatterjee-Paer, Alexandre Buckley de Meritens, William M Burke, Ana I Tergas, Jason D Wright, June Y Hou
Endometrial carcinoma (EC) is traditionally characterized as endometrioid and non-endometrioid based on histo-pathologic phenotypes. Molecular-based classifications have been proposed, but are not widely implemented. Herein we examine molecular profiles between EC histologic subtypes. 3133 ECs were submitted between March 2011 and July 2014: 1634 Type I and 1226 Type II. In situ hybridization and immunohistochemistry were used to assess copy number and protein expression of selected genes. Sequenced variants in 47 genes were analyzed using the Illumina TruSeq Amplicon Cancer Panel...
December 1, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27905097/novel-biomarkers-in-primary-breast-core-biopsies-to-predict-poor-response-to-neoadjuvant-chemotherapy-and-appearance-of-metastases
#12
Anna Novell, Serafin Morales, Joan Valls, Maria José Panadés, Antonieta Salud, Edelmiro Iglesias, Felip Vilardell, Xavier Matias-Guiu, Antonio Llombart-Cussac
Drug resistance has been one of the major obstacles limiting the success of cancer chemotherapy. In two thirds of breast cancer patients, large (>1cm) residual tumors are present after neoadjuvant chemotherapy (NCT). The residual tumor and involved nodes have been indicators of relapse and survival very important in breast cancer. The goal of this preliminary study was to assess the predictive significance of a panel of molecular biomarkers, related with the response to treatment or drug resistance to NCT, as determined on the diagnostic tumor...
December 1, 2016: Histology and Histopathology
https://www.readbyqxmd.com/read/27904654/augmentation-of-histone-deacetylase-3-hdac3-epigenetic-signature-at-the-interface-of-proinflammation-and-insulin-resistance-in-patients-with-type-2-diabetes
#13
Chandrakumar Sathishkumar, Paramasivam Prabu, Mahalingam Balakumar, Raji Lenin, Durai Prabhu, Ranjith Mohan Anjana, Viswanathan Mohan, Muthuswamy Balasubramanyam
BACKGROUND: A role of proinflammation has been implicated in the pathogenesis of diabetes, but the up-stream regulatory signals and molecular signatures are poorly understood. While histone modifications such as changes in histone deacetylase (HDAC) are emerging as novel epigenetic biomarkers, there is lack of studies to demonstrate their clinical relevance in diabetes. Therefore, we investigated the extent of HDAC machinery and inflammatory signals in peripheral blood mononuclear cells (PBMCs) from patients with type 2 diabetes mellitus (T2DM) compared to control subjects...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27903675/a-pam50-based-chemo-endocrine-score-for-hormone-receptor-positive-breast-cancer-with-an-intermediate-risk-of-relapse
#14
Aleix Prat, Ana Lluch, Arran K Turnbull, Anita K Dunbier, Lourdes Calvo, Joan Albanell, Juan de la Haba-Rodríguez, Angels Arcusa, Ignacio Chacón, Pedro Sánchez-Rovira, Arrate Plazaola, Montse Muñoz, Laia Paré, Joel S Parker, Nuria Ribelles, Begona Jimenez, Abdul Aziz Bin Aiderus, Rosalía Caballero, Barbara Adamo, Mitch Dowsett, Eva M Carrasco, Miguel Martín, J Michael Dixon, Charles M Perou, Emilio Alba
PURPOSE: Hormone receptor-positive (HR+) breast cancer is clinically and biologically heterogeneous and subgroups with different prognostic and treatment sensitivities need to be identified. EXPERIMENTAL DESIGN: Research-based PAM50 subtyping and expression of additional genes was performed on 63 patients with HR+/HER2- disease randomized to neoadjuvant multi-agent chemotherapy versus endocrine therapy in a phase II trial. The biology associated with treatment response was used to derive a PAM50-based Chemo-Endocrine Score (CES)...
November 30, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27903157/obesity-and-other-cancers
#15
Lin Yang, Bettina F Drake, Graham A Colditz
Purpose Evidence on overweight, obesity, and an increased risk of cancer continues to accumulate and was updated in the 2016 handbook on weight control from the International Agency for Research on Cancer (IARC). The underlying primary data, together with dose-response meta-analysis and, finally, pooled analysis of individual participant data, add insight into the relation between obesity and cancer risk and prognosis. We summarize the evidence for mortality from prostate cancer, hematologic malignancies, and kidney cancer...
December 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27903149/obesity-and-breast-cancer-prognosis-evidence-challenges-and-opportunities
#16
Sao Jiralerspong, Pamela J Goodwin
Purpose To summarize the evidence of an association between obesity and breast cancer prognosis. Methods We reviewed the literature regarding overweight and obesity and breast cancer survival outcomes, overall and with regard to breast cancer subtypes, breast cancer therapies, biologic mechanisms, and possible interventions. We summarize our findings and provide clinical management recommendations. Results Obesity is associated with a 35% to 40% increased risk of breast cancer recurrence and death and therefore poorer survival outcomes...
December 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27902972/unravelling-site-specific-breast-cancer-metastasis-a-microrna-expression-profiling-study
#17
Willemijne A M E Schrijver, Paul J van Diest, Dutch Distant Breast Cancer Metastases Consortium, Cathy B Moelans
Distant metastasis is still the main cause of death from breast cancer. MicroRNAs (miRs) are important regulators of many physiological and pathological processes, including metastasis. Molecular breast cancer subtypes are known to show a site-specific pattern of metastases formation. In this study, we set out to determine the underlying molecular mechanisms of site-specific breast cancer metastasis by microRNA expression profiling.To identify a miR signature for metastatic breast carcinoma that could predict metastatic localization, we compared global miR expression in 23 primary breast cancer specimens with their corresponding multiple distant metastases to ovary (n=9), skin (n=12), lung (n=10), brain (n=4) and gastrointestinal tract (n=10) by miRCURY microRNA expression arrays...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27902734/galectin-7-expression-potentiates-her-2-positive-phenotype-in-breast-cancer
#18
Andrée-Anne Grosset, Françoise Poirier, Louis Gaboury, Yves St-Pierre
HER-2 positive tumors are among the most aggressive subtypes of breast cancer and are frequently associated with metastasis and poor outcome. As with other aggressive subtypes of breast cancer, these tumors are associated with abnormally high expression of galectin-7 (gal-7), which confers metastatic breast tumor cells with increased invasive behavior. Although previous studies in the rat model of breast tumorigenesis have shown that gal-7 is also increased in primary breast tumor, its contribution to the development of the primary breast tumors remains unclear...
2016: PloS One
https://www.readbyqxmd.com/read/27902464/expression-of-rab1a-is-upregulated-in-human-lung-cancer-and-associated-with-tumor-size-and-t-stage
#19
Xinxin Wang, Feng Liu, Xiaoyu Qin, Tinglei Huang, Bo Huang, Yanjie Zhang, Bin Jiang
Rab1A expression is associated with malignant phenotypes in several human tumors; however, the role of Rab1A in lung cancer is still unclear. In this study, we attempted to establish the role of Rab1A in major human lung cancer subtypes. Rab1A expression in different histological types of human lung cancer was analyzed in lung cancer tissues with paired adjacent noncancerous tissues and a large panel of lung cancer cell lines. The effect of Rab1A expression on multiple cancer-associated signaling pathways was also examined...
November 29, 2016: Aging
https://www.readbyqxmd.com/read/27901097/sequencing-based-breast-cancer-diagnostics-as-an-alternative-to-routine-biomarkers
#20
Mattias Rantalainen, Daniel Klevebring, Johan Lindberg, Emma Ivansson, Gustaf Rosin, Lorand Kis, Fuat Celebioglu, Irma Fredriksson, Kamila Czene, Jan Frisell, Johan Hartman, Jonas Bergh, Henrik Grönberg
Sequencing-based breast cancer diagnostics have the potential to replace routine biomarkers and provide molecular characterization that enable personalized precision medicine. Here we investigate the concordance between sequencing-based and routine diagnostic biomarkers and to what extent tumor sequencing contributes clinically actionable information. We applied DNA- and RNA-sequencing to characterize tumors from 307 breast cancer patients with replication in up to 739 patients. We developed models to predict status of routine biomarkers (ER, HER2,Ki-67, histological grade) from sequencing data...
November 30, 2016: Scientific Reports
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