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Ovarian cancer etiology

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https://www.readbyqxmd.com/read/29737528/preterm-delivery-is-associated-with-an-increased-risk-of-epithelial-ovarian-cancer-among-parous-women
#1
Camilla Sköld, Tone Bjørge, Anders Ekbom, Anders Engeland, Mika Gissler, Tom Grotmol, Laura Madanat, Anne Gulbech Ording, Olof Stephansson, Britton Trabert, Steinar Tretli, Rebecca Troisi, Henrik Toft Sørensen, Ingrid Glimelius
Epithelial ovarian cancer is a fatal disease of largely unknown etiology. Higher parity is associated with reduced risk of ovarian cancer. However, among parous women, the impact of pregnancy-related factors on risk is not well understood. This population-based case-control study included all parous women with epithelial ovarian cancer in Denmark, Finland, Norway and Sweden during 1967-2013 (n=10,957) and up to 10 matched controls (n=107,864). We used conditional logistic regression to estimate odds ratios (ORs) with 95% confidence intervals (CIs) for pregnancy-related factors and ovarian cancer risk by histological subtype...
May 8, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29670085/a-trib2-p38-axis-controls-myeloid-leukaemia-cell-cycle-and-stress-response-signalling
#2
Mara Salomé, Aoife Magee, Krisha Yalla, Shahzya Chaudhury, Evgenia Sarrou, Ruaidhrí J Carmody, Karen Keeshan
Trib2 pseudokinase is involved in the etiology of a number of cancers including leukaemia, melanoma, ovarian, lung and liver cancer. Both high and low Trib2 expression levels correlate with different types of cancer. Elevated Trib2 expression has oncogenic properties in both leukaemia and lung cancer dependent on interactions with proteasome machinery proteins and degradation of transcription factors. Here, we demonstrated that Trib2 deficiency conferred a growth and survival advantage both at steady state and in stress conditions in leukaemia cells...
April 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29606970/the-protective-role-of-melatonin-in-cadmium-induced-proliferation-of-ovarian-cancer-cells
#3
Negar Ataei, Mahmoud Aghaei, Mojtaba Panjehpour
Cadmium (Cd), a ubiquitous environmental and occupational pollutant, acts as a metalloestrogen to induce cell proliferation. It is suggested that Cd may also contribute to the development of estrogen-related cancers like ovarian cancer which is the most lethal cancer in women. Furthermore, it was shown that melatonin has antiproliferative effect on estradiol (E2)-induced proliferation. The aim of the present study was to evaluate whether melatonin inhibits Cd-induced proliferation in ovarian cancer cell lines and also whether Cd and melatonin can modulate estrogen receptor α (ERα) expression...
April 2018: Research in Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29605053/a-contemporary-framework-of-health-equity-applied-to-gynecologic-cancer-care-a-society-of-gynecologic-oncology-evidenced-based-review
#4
REVIEW
Sarah M Temkin, B J Rimel, Amanda S Bruegl, Camille C Gunderson, Anna L Beavis, Kemi M Doll
Health disparities are defined as the preventable difference in the burden of disease, injury, and violence, or opportunity to achieve optimal health that socially disadvantaged populations experience compared to the population as a whole. Disparities in incidence and cancer outcomes for women with gynecologic malignancies have been well described particularly for American women of Black race. The etiology of these disparities has been tied to socio-economics, cultural, educational and genetic factors. While access to high quality treatment has been primarily linked to survival from cervical and ovarian cancer, innate biologic distinctions have been principally cited as reasons for differences in incidence and mortality in cancers of the uterine corpus...
April 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29576811/delineating-potential-transcriptomic-association-with-organochlorine-pesticides-in-the-etiology-of-epithelial-ovarian-cancer
#5
Harendra K Shah, Muzaffer A Bhat, Tusha Sharma, Basu D Banerjee, Kiran Guleria
Background: Recent studies have shown that there is an increased risk of Epithelial Ovarian Cancer (EOC) with Organochlorine Pesticides (OCPs). However, the alteration in the gene expression profile has not been explored so far. The goal of the present study is to understand the probable molecular mechanism of OCPs toxicity towards discovery of dysregulation of signaling pathway associated with differential gene expression and candidate transcriptomic set of markers in the pathophysiology of EOC in OCPs exposed population...
2018: Open Biochemistry Journal
https://www.readbyqxmd.com/read/29476569/the-role-of-pregnancy-perinatal-factors-and-hormones-in-maternal-cancer-risk-a-review-of-the-evidence
#6
R Troisi, T Bjørge, M Gissler, T Grotmol, C M Kitahara, S M Myrtveit Saether, A G Ording, C Sköld, H T Sørensen, B Trabert, I Glimelius
An understanding of the origin of cancer is critical for cancer prevention and treatment. Complex biological mechanisms promote carcinogenesis, and there is increasing evidence that pregnancy-related exposures influence foetal growth cell division and organ functioning and may have a long-lasting impact on health and disease susceptibility in the mothers and offspring. Nulliparity is an established risk factor for breast, ovarian, endometrial and possibly pancreatic cancer, whilst the risk of kidney cancer is elevated in parous compared with nulliparous women...
May 2018: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29464067/gene-aberration-profile-of-tumors-of-adolescent-and-young-adult-females
#7
Yasuyuki Kanke, Akihiko Shimomura, Motonobu Saito, Takayuki Honda, Kouya Shiraishi, Yoko Shimada, Reiko Watanabe, Hiroshi Yoshida, Masayuki Yoshida, Chikako Shimizu, Kazuaki Takahashi, Hirohiko Totsuka, Hideaki Ogiwara, Sou Hirose, Koji Kono, Kenji Tamura, Aikou Okamoto, Takayuki Kinoshita, Tomoyasu Kato, Takashi Kohno
There has been little improvement in the prognosis for adolescent and young adult (AYA) tumor patients. Hence, there is an urgent need to understand the etiology of tumor development and identify actionable gene aberrations to improve prevention and therapy. Here, 76 sporadic tumors (48 breast, 22 ovarian, and six uterine) from 76 AYA females (age range, 25-39 years) were subjected to whole exome and RNA sequencing to determine their mutational signatures and actionable gene profiles. Two individuals with breast cancer (4...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29438162/serum-glucose-and-insulin-and-risk-of-cancers-of-the-breast-endometrium-and-ovary-in-postmenopausal-women
#8
Geoffrey C Kabat, Mimi Y Kim, Dorothy S Lane, Oleg Zaslavsky, Gloria Y F Ho, Juhua Luo, Wanda K Nicholson, Rowan T Chlebowski, Wendy E Barrington, Mara Z Vitolins, Xiaochen Lin, Simin Liu, Thomas E Rohan
Limited evidence suggests that hyperinsulinemia may contribute to the risk of breast, endometrial, and, possibly, ovarian cancer. The aim of this study was to assess the association of serum glucose and insulin with risk of these cancers in postmenopausal women, while taking into account potential confounding and modifying factors. We studied 21 103 women with fasting baseline insulin and glucose measurements in a subsample of the Women's Health Initiative. The subsample was composed of four studies within Women's Health Initiative with different selection and sampling strategies...
May 2018: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29401696/pim-kinases-and-their-relevance-to-the-pi3k-akt-mtor-pathway-in-the-regulation-of-ovarian-cancer
#9
REVIEW
Aziz Ur Rehman Aziz, Sumbal Farid, Kairong Qin, Hanqin Wang, Bo Liu
Ovarian cancer is a medical term that includes a number of tumors with different molecular biology, phenotypes, tumor progression, etiology, and even different diagnosis. Some specific treatments are required to address this heterogeneity of ovarian cancer, thus molecular characterization may provide an important tool for this purpose. On a molecular level, proviral-integration site for Moloney-murine leukemia virus (PIM) kinases are over expressed in ovarian cancer and play a vital role in the regulation of different proteins responsible for this tumorigenesis...
February 4, 2018: Biomolecules
https://www.readbyqxmd.com/read/29366789/acidification-induces-ogr1-ca-2-calpain-signaling-in-gingival-fibroblasts
#10
Mi Seong Kim, Dong Min Shin, Min Seuk Kim
Gingivitis, the mildest form of periodontitis, is generally considered a consequence of prolonged exposure of the gingiva to periodontal pathogens. On the other hand, several epidemiologic reports have suggested that other etiologic factors such as oral acidification may also increase the susceptibility of the periodontium to destruction. However, the pathologic mechanism underlying the effects of oral acidification on the gingiva is still largely unknown. In this study, we analyzed molecular pathways mediating the influence of the acidic environment on human gingival fibroblasts (HGFs)...
February 5, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29357823/chemotherapy-weakly-contributes-to-predicted-neoantigen-expression-in-ovarian-cancer
#11
Timothy O'Donnell, Elizabeth L Christie, Arun Ahuja, Jacqueline Buros, B Arman Aksoy, David D L Bowtell, Alexandra Snyder, Jeff Hammerbacher
BACKGROUND: Patients with highly mutated tumors, such as melanoma or smoking-related lung cancer, have higher rates of response to immune checkpoint blockade therapy, perhaps due to increased neoantigen expression. Many chemotherapies including platinum compounds are known to be mutagenic, but the impact of standard treatment protocols on mutational burden and resulting neoantigen expression in most human cancers is unknown. METHODS: We sought to quantify the effect of chemotherapy treatment on computationally predicted neoantigen expression for high grade serous ovarian carcinoma patients enrolled in the Australian Ovarian Cancer Study...
January 22, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29355939/inflammatory-potential-of-diet-and-risk-of-pancreatic-cancer-in-the-prostate-lung-colorectal-and-ovarian-plco-cancer-screening-trial
#12
Jiali Zheng, Anwar T Merchant, Michael D Wirth, Jiajia Zhang, Samuel O Antwi, Azza Shoaibi, Nitin Shivappa, Rachael Z Stolzenberg-Solomon, James R Hebert, Susan E Steck
Inflammation plays a central role in pancreatic cancer etiology and can be modulated by diet. We aimed to examine the association between the inflammatory potential of diet, assessed with the Dietary Inflammatory Index (DII®), and pancreatic cancer risk in the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial prospective cohort. Our study included 101,449 participants aged 52-78 years at baseline who completed both baseline questionnaire and a diet history questionnaire. Energy-adjusted DII (E-DII) scores were computed based on food and supplement intake...
January 22, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29321816/erbb-signaling-in-ctcs-of-ovarian-cancer-and-glioblastoma
#13
REVIEW
Anjali Geethadevi, Deepak Parashar, Erin Bishop, Sunila Pradeep, Pradeep Chaluvally-Raghavan
Circulating Tumor Cells (CTCs) are floating cell populations, which are resistant to anoikis after detachment from the primary sites and travel through the circulatory and lymphatic systems to disseminate throughout the body. CTCs are considered as seed cells for metastasis, and thus isolation of CTCs does not require any invasive procedure. Based on the nature and location of ovarian cancer and glioblastoma, the role of CTCs and hematogenous (carried by blood) spreading of tumor cells in these cancers were not understood well...
November 2017: Genes & Cancer
https://www.readbyqxmd.com/read/29303936/type-i-versus-type-ii-endometrial-cancer-differential-impact-of-comorbidity
#14
Mette Calundann Noer, Sofie Leisby Antonsen, Bent Ottesen, Ib Jarle Christensen, Claus Høgdall
OBJECTIVE: Two distinct types of endometrial carcinoma (EC) with different etiology, tumor characteristics, and prognosis are recognized. We investigated if the prognostic impact of comorbidity varies between these 2 types of EC. Furthermore, we studied if the recently developed ovarian cancer comorbidity index (OCCI) is useful for prediction of survival in EC. MATERIALS AND METHODS: This nationwide register-based cohort study was based on data from 6487 EC patients diagnosed in Denmark between 2005 and 2015...
March 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29290361/dietary-inflammatory-index-and-ovarian-cancer-risk-in-a-new-jersey-case-control-study
#15
Nitin Shivappa, James R Hébert, Lisa E Paddock, Lorna Rodriguez-Rodriguez, Sara H Olson, Elisa V Bandera
OBJECTIVE: Diet may influence the development of ovarian cancer. Although it has been shown that inflammation plays an important etiologic role in ovarian carcinogenesis, little is known about the influence of the inflammatory potential of food consumption. The aim of this study was to evaluate the effect of a proinflammatory diet, as indicated by a high dietary inflammatory index (DII® ) score, on ovarian cancer risk, in a New Jersey population. METHODS: Data from a case-control study conducted in New Jersey were used to estimate the relation between DII score and the risk for ovarian cancer...
February 2018: Nutrition
https://www.readbyqxmd.com/read/29204511/-smarca4-germline-gene-mutation-in-a-patient-with-epithelial-ovarian-a-case-report
#16
Reshma Muppala, Talia Donenberg, Marilyn S Huang, Matthew P Schlumbrecht
Background: SMARCA4 is gene whose protein product participates in chromatin remodeling. Somatic mutations in this gene are associated with non-small cell lung cancer and malignant rhabdoid tumors, and both germline and somatic mutations are seen with small cell carcinoma of the ovary, hypercalcemic type. To date, there are no data identifying an association with more common epithelial carcinomas of the ovary. Case: The patient is a 57-year-old female without any significant family history of cancer, diagnosed with high-grade serous carcinoma of the ovary...
November 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/29188658/assessing-local-stromal-alterations-in-human-ovarian-cancer-subtypes-via-second-harmonic-generation-microscopy-and-analysis
#17
Kirby R Campbell, Paul J Campagnola
The collagen architecture in all human ovarian cancers is substantially remodeled, where these alterations are manifested in different fiber widths, fiber patterns, and fibril size and packing. Second harmonic generation (SHG) microscopy has differentiated normal tissues from high-grade serous (HGS) tumors with high accuracy; however, the classification between low-grade serous, endometrioid, and benign tumors was less successful. We postulate this is due to known higher genetic variation in these tissues relative to HGS tumors, which are genetically similar, and this results in more heterogeneous collagen remodeling in the respective matrix...
November 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29113037/vitamin-d-and-vdr-in-gynecological-cancers-a-systematic-review
#18
REVIEW
Eileen Deuster, Udo Jeschke, Yao Ye, Sven Mahner, Bastian Czogalla
In recent years, a vast amount of studies have centered on the role of vitamin D in the pathogenesis of certain types of cancers such as breast, colorectal and lung cancer. Increasing evidence suggests that vitamin D and its receptor play a crucial role in the development of gynecological cancers. In this review, we systematically analyzed the effect of vitamin D and the vitamin D receptor on endometrial, ovarian, cervical, vulvar and vaginal cancer. Our literature research shows that vitamin D levels and vitamin-D-related pathways affect the risk of gynecological cancers...
November 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29083341/a-case-of-refractary-epilepsy-and-related-pain-due-to-dysmenorrhea-solved-with-loading-dose-of-lacosamide-clinical-and-neurophysiological-correlates
#19
Nicolino Marchitto, Umberto Ceratti, Serenella Dalmaso, Gianfranco Raimondi
 In most cases, the etiology of epilepsy is unknown, although some individuals may develop epilepsy as a result of certain brain injuries, following a stroke, a brain tumor or because of drugs and alcohol. Even some rare genetic mutations may be related to the onset of the condition. Seizures are the result of excessive and abnormal activity of neurons in the cerebral cortex. In this case report we show a clinical case of refractory epilepsy due to pain related to uncontrolled dysmenorrhea. The patient, 43 yrs old, had a history of epilepsy of 20 years and ovarian cancer...
October 23, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29061967/high-grade-serous-ovarian-carcinomas-originate-in-the-fallopian-tube
#20
S Intidhar Labidi-Galy, Eniko Papp, Dorothy Hallberg, Noushin Niknafs, Vilmos Adleff, Michael Noe, Rohit Bhattacharya, Marian Novak, Siân Jones, Jillian Phallen, Carolyn A Hruban, Michelle S Hirsch, Douglas I Lin, Lauren Schwartz, Cecile L Maire, Jean-Christophe Tille, Michaela Bowden, Ayse Ayhan, Laura D Wood, Robert B Scharpf, Robert Kurman, Tian-Li Wang, Ie-Ming Shih, Rachel Karchin, Ronny Drapkin, Victor E Velculescu
High-grade serous ovarian carcinoma (HGSOC) is the most frequent type of ovarian cancer and has a poor outcome. It has been proposed that fallopian tube cancers may be precursors of HGSOC but evolutionary evidence for this hypothesis has been limited. Here, we perform whole-exome sequence and copy number analyses of laser capture microdissected fallopian tube lesions (p53 signatures, serous tubal intraepithelial carcinomas (STICs), and fallopian tube carcinomas), ovarian cancers, and metastases from nine patients...
October 23, 2017: Nature Communications
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