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https://www.readbyqxmd.com/read/28643774/insufficient-antibody-validation-challenges-oestrogen-receptor-beta-research
#1
Sandra Andersson, Mårten Sundberg, Nusa Pristovsek, Ahmed Ibrahim, Philip Jonsson, Borbala Katona, Carl-Magnus Clausson, Agata Zieba, Margareta Ramström, Ola Söderberg, Cecilia Williams, Anna Asplund
The discovery of oestrogen receptor β (ERβ/ESR2) was a landmark discovery. Its reported expression and homology with breast cancer pharmacological target ERα (ESR1) raised hopes for improved endocrine therapies. After 20 years of intense research, this has not materialized. We here perform a rigorous validation of 13 anti-ERβ antibodies, using well-characterized controls and a panel of validation methods. We conclude that only one antibody, the rarely used monoclonal PPZ0506, specifically targets ERβ in immunohistochemistry...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643732/thrombocytosis-in-gynecological-cancers
#2
REVIEW
Deepti Sharma, Garima Singh
Thrombocytosis has been suggested to be a poor prognostic indicator in malignancies. Studies have shown that thrombocytosis is associated with a poor prognosis in various gynecological malignancies such as carcinoma ovary, cervical cancer, and endometrial cancer. The aim of this study is to analyze the impact of thrombocytosis on the prognosis of gynecological cancer. All the relevant data were retrieved by PubMed, MEDLINE, and Web of Science, and then studies were chosen in this analysis of association between thrombocytosis and gynecological malignancy...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28640441/adipose-tissue-derived-omentin-1-function-and-regulation
#3
Takuya Watanabe, Kaho Watanabe-Kominato, Yui Takahashi, Miho Kojima, Rena Watanabe
Omentin-1, also known as intelectin-1, is a recently identified novel adipocytokine of 313 amino acids, which is expressed in visceral (omental and epicardial) fat as well as mesothelial cells, vascular cells, airway goblet cells, small intestine, colon, ovary, and plasma. The level of omentin-1 expression in (pre)adipocytes is decreased by glucose/insulin and stimulated by fibroblast growth factor-21 and dexamethasone. Several lines of experimental evidence have shown that omentin-1 plays crucial roles in the maintenance of body metabolism and insulin sensitivity, and has anti-inflammatory, anti-atherosclerotic, and cardiovascular protective effects via AMP-activated protein kinase/Akt/nuclear factor-κB/mitogen-activated protein kinase (ERK, JNK, and p38) signaling...
June 18, 2017: Comprehensive Physiology
https://www.readbyqxmd.com/read/28637499/diagnostic-relevance-of-urinary-steroid-profiles-on-ovarian-granulosa-cell-tumors-two-case-reports
#4
Anita Bufa, Nelli Farkas, Zsolt Preisz, Viktória Poór, Csilla Páger, Sándor Szukits, Bálint Farkas, Péter Miklós Gőcze
BACKGROUND: Granulosa cell tumor of the ovary is the most frequent sex cord stromal tumor and represents 2 to 5% of all primary ovarian cancers. Ovarian granulosa cell tumor is a malignant tumor with slow progression and in some cases this tumor is hormonally active. The recurrence of granulosa cell tumor often happens after 5 years. CASE PRESENTATION: We describe two cases of postmenopausal women with adult-type granulosa cell tumors of the ovary. Patient 1 is a 49-year-old European woman with a recurrent tumor; patient 2 is a 55-year-old European woman without recurrence of tumor...
June 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28637487/the-nf1-somatic-mutational-landscape-in-sporadic-human-cancers
#5
REVIEW
Charlotte Philpott, Hannah Tovell, Ian M Frayling, David N Cooper, Meena Upadhyaya
BACKGROUND: Neurofibromatosis type 1 (NF1: Online Mendelian Inheritance in Man (OMIM) #162200) is an autosomal dominantly inherited tumour predisposition syndrome. Heritable constitutional mutations in the NF1 gene result in dysregulation of the RAS/MAPK pathway and are causative of NF1. The major known function of the NF1 gene product neurofibromin is to downregulate RAS. NF1 exhibits variable clinical expression and is characterized by benign cutaneous lesions including neurofibromas and café-au-lait macules, as well as a predisposition to various types of malignancy, such as breast cancer and leukaemia...
June 21, 2017: Human Genomics
https://www.readbyqxmd.com/read/28628042/a-therapeutic-t-cell-receptor-mimic-antibody-targets-tumor-associated-prame-peptide-hla-i-antigens
#6
Aaron Y Chang, Tao Dao, Ron S Gejman, Casey A Jarvis, Andrew Scott, Leonid Dubrovsky, Melissa D Mathias, Tatyana Korontsvit, Victoriya Zakhaleva, Michael Curcio, Ronald C Hendrickson, Cheng Liu, David A Scheinberg
Preferentially expressed antigen in melanoma (PRAME) is a cancer-testis antigen that is expressed in many cancers and leukemias. In healthy tissue, PRAME expression is limited to the testes and ovaries, making it a highly attractive cancer target. PRAME is an intracellular protein that cannot currently be drugged. After proteasomal processing, the PRAME300-309 peptide ALYVDSLFFL (ALY) is presented in the context of human leukocyte antigen HLA-A*02:01 molecules for recognition by the T cell receptor (TCR) of cytotoxic T cells...
June 19, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28626261/a-case-of-metachronous-left-ovarian-metastasis-8-years-after-surgery-for-cecal-cancer-and-right-ovarian-metastasis-report-of-a-case
#7
Itaru Shigeyoshi, Koji Komori, Takashi Kinoshita, Taihei Oshiro, Seiji Ito, Tetsuya Abe, Yoshiki Senda, Kazunari Misawa, Yuichi Ito, Norihisa Uemura, Seiji Natsume, Jiro Kawakami, Akira Ouchi, Masayuki Tsutsuyama, Takahiro Hosoi, Tomoyuki Akazawa, Daisuke Hayashi, Hideharu Tanaka, Yasushi Yatabe, Yasuhiro Shimizu
Metachronous ovarian metastasis of colorectal adenocarcinoma is mostly identified within 3 years. Here we present a case of a 64-year-old woman with cecal cancer who underwent right oophorectomy for ovarian metastasis. Imaging was performed because of abdominal bloating; it detected a swollen right ovary with ascites. On laparotomy, a right ovarian tumor and cecal cancer were identified. After right oophorectomy, a diagnosis of unilateral ovarian metastasis from colon cancer was made. One month later, right hemicolectomy was performed...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28621691/ovarian-preservation-improves-overall-survival-in-young-patients-with-early-stage-endometrial-cancer
#8
REVIEW
Peng Jia, Yan Zhang
We searched Medline, Embase, Cochrane library, the Chinese Biomedicine Literature Database, the Chinese Scientific Journal Full-text Database, the Chinese Journal Full-text Database, and the Wanfang Database to collect observational studies on the effects of ovary-saving surgery in comparison to bilateral salpingo-oophorectomy (BSO) in young patients with early-stage endometrial cancer (EC). The literature search included studies up to March 2017, and 10 retrospective cohort studies met our selection criteria...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620006/cancer-surveillance-in-gorlin-syndrome-and-rhabdoid-tumor-predisposition-syndrome
#9
REVIEW
William D Foulkes, Junne Kamihara, D Gareth R Evans, Laurence Brugières, Franck Bourdeaut, Jan J Molenaar, Michael F Walsh, Garrett M Brodeur, Lisa Diller
Gorlin syndrome and rhabdoid tumor predisposition syndrome (RTPS) are autosomal dominant syndromes associated with an increased risk of childhood-onset brain tumors. Individuals with Gorlin syndrome can manifest a wide range of phenotypic abnormalities, with about 5% of family members developing medulloblastoma, usually occurring in the first 3 years of life. Gorlin syndrome is associated with germline mutations in components of the Sonic Hedgehog pathway, including Patched1 (PTCH1) and Suppressor of fused (SUFU)SUFU mutation carriers appear to have an especially high risk of early-onset medulloblastoma...
June 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28619688/single-port-laparoscopy-in-gynecologic-oncology-seven-years-of-experience-at-a-single-institution
#10
Laura Moulton, Amelia M Jernigan, Caitlin Carr, Lindsey Freeman, Pedro F Escobar, Chad M Michener
BACKGROUND: Single port laparoscopy has gained popularity within minimally invasive gynecologic surgery for its feasibility, cosmetic outcomes and safety. However, within gynecologic oncology, there is limited data regarding short-term adverse outcomes and long term hernia risk in patients undergoing single port laparoscopic surgery. OBJECTIVE: To describe short-term outcomes and hernia rates in patients after single port laparoscopy in a gynecologic oncology practice...
June 12, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28615616/early-stage-mucinous-ovarian-adenocarcinoma-with-extensive-clotting-in-a-previously-healthy-young-female-patient-an-uncommon-presentation-of-a-relatively-uncommon-disease
#11
Suchin R Khanna, Brave Nguyen, Mahmoud Charif
BACKGROUND Mucinous ovarian adenocarcinoma is one of the less common epithelial cancers of the ovaries, and typically does not occur in younger women. Nearly all mucinous ovarian adenocarcinomas present with early-stage disease without significant sequelae of cancer, such as clotting. Anchoring bias is a common problem in medicine that has been shown to significantly affect physician decision-making. CASE REPORT We present the case of a 24-year-old healthy female Chinese immigrant with no significant past medical history, who presented with a subacute history of nonproductive cough and shortness of breath with exertion...
June 15, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28612586/sociological-transition-and-breast-cancer-in-the-arab-world-the-experience-of-lebanon
#12
Najla A Lakkis, Salim M Adib, Ghassan Hamadeh, Rana El Jarrah, Mona H Osman
Background: Breast cancer is the leading cause of cancer death among females in Lebanon. This study aimed at analyzing its epidemiology in the country over time. Methods: Data were extracted from the Lebanese National Cancer Registry (NCR) for the years 2004 through 2010. Age-standardized and age-specific incidence rates for cancers per 100,000 population were calculated. Results: Breast cancer ranked first, accounting for an average of 37.6% of all new female cancer cases in Lebanon during the period of 2004-2010...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28612110/differential-killing-and-radio-modifying-effects-of-iodoacetate-in-mammalian-normal-and-cancer-cells
#13
Usha Yadav, K B Anjaria, Rajesha Nairy, K B Shirsath, Utkarsha N Desai, Rajesh K Chaurasia, Nagesh N Bhat, B K Sapra
To explore possible applications of iodoacetate (IA), a glycolytic inhibitor, in cancer treatment, we screened its cytotoxicity and radioprotective/sensitizing efficacy in three different mammalian cell lines; A549 (human lung carcinoma), MCF7 (human mammary cancer), a non-cancerous CHO (Chinese hamster ovary) cells and human lymphocytes. Experiments were carried out using IA concentrations ranging from 0.01 to 2.5 µg/ml, with or without (60)Coγ-radiation. In the outcomes, IA was found to exhibit higher toxicity in the cancer cells, whereas it was non-toxic/marginally toxic to the non-cancerous cells...
June 13, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28610900/persistence-of-fimbrial-tissue-on-the-ovarian-surface-following-salpingectomy
#14
Carmen Gan, Rashna Chenoy, Dhivya Chandrasekaran, Elly Brockbank, Antony Hollingworth, Sotiris Vimplis, Alexandra C Lawrence, Arjun R Jeyarajah, David Oram, Nandita Deo, Jamna Saravanamuthu, Sarah S Lam, Asma Faruqi, Naveena Singh, Ranjit Manchanda
BACKGROUND: Salpingectomy is recommended as a risk-reducing strategy for epithelial tubo-ovarian cancer. The gold standard procedure is complete tubal excision. OBJECTIVE: To assess the presence of residual fimbrial/tubal tissue on ovarian surfaces following salpingectomy. DESIGN: Prospective analysis of patients undergoing salpingo-oophorectomy +/- hysterectomy for benign indications, early cervical cancer or low risk endometrial cancer at a UK National Health Service Trust...
June 10, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28609287/the-role-of-thyrostimulin-and-its-potential-clinical-significance
#15
Dimitrios Karponis, S Ananth
Thyrostimulin is a glycoprotein heterodimer of GPA2 and GPB5, first described in 2002. It is involved in the physiological function of several tissues. Moreover, evidence points towards the ability of thyrostimulin's individual monomers to induce a biological effect, which could denote the circulatory/systemic effects of the molecule when found in higher concentrations. From the evolutionary point of view, thyrostimulin shares a binding epitope with the thyroid-stimulating hormone for the thyroid stimulating hormone receptor, whilst possessing affinity for another unique binding site on the same receptor...
April 25, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/28608987/smarca4-inactivating-mutations-cause-concomitant-coffin-siris-syndrome-microphthalmia-and-small-cell-carcinoma-of-the-ovary-hypercalcemic-type
#16
Edoardo Errichiello, Noor Mustafa, Annalisa Vetro, Lucia Dora Notarangelo, Hugo de Jonge, Berardo Rinaldi, Debora Vergani, Sabrina Rita Giglio, Patrizia Morbini, Orsetta Zuffardi
SMARCA4 chromatin remodeling factor is mutated in 11% of Coffin-Siris syndrome (CSS) patients and in almost all small cell carcinoma of the ovary hypercalcemic type (SCCOHT) tumors. Missense mutations with gain-of-function or dominant-negative effects are associated with CSS, whereas inactivating mutations, leading to loss of SMARCA4 expression, have been exclusively found in SCCOHT. We applied whole exome sequencing to study a 15-year-old patient with mild CSS who concomitantly developed SCCOHT at age 13 years...
June 13, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28607781/malignant-transformation-of-mature-cystic-teratoma-diagnosed-after-a-10-year-interval
#17
Mariko Jitsumori, Satoru Munakata, Toshiya Yamamoto
A 67-year-old uniparous woman had undergone surgery for acute perforated gastric ulcer 10 years prior to the current presentation. Although abdominal computed tomography (CT) performed at that point had revealed a mature cystic teratoma measuring 6 cm in diameter in the right ovary, it was left untreated. She visited the department of surgery at our hospital with chief complaints of appetite loss, nausea, and vomiting that had persisted for the prior two weeks. She was admitted with a diagnosis of ileus attributed to an abdominal incisional hernia...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28604126/strategies-for-overcoming-oncological-treatment-related-ovarian-dysfunction-literature-review
#18
Katarzyna Pankiewicz, Grzegorz Szewczyk, Tomasz Mikołaj Maciejewski, Dariusz Szukiewicz
In the majority of developed countries, it is observed that the time for maternity is being postponed to over the 30th and even 40th year of life. A significant number of cancers are diagnosed during reproductive age, often before the first pregnancy. A fertility preservation is an important issue in oncological treatment, where there is a need for balancing between radicality and the preservation of function of reproductive organs. The authors discuss the problem of ovarian dysfunction after oncological treatment and present the possible strategies for saving the reproductive function of ovaries, including both invasive and pharmacological approaches...
June 11, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28602465/the-management-of-sexuality-intimacy-and-menopause-symptoms-sims-after-prophylactic-bilateral-salpingo-oophorectomy-how-to-maintain-sexual-health-in-previvors
#19
REVIEW
Mehida Alexandre, Jonathan Black, Margaret Whicker, Mary Jane Minkin, Elena Ratner
"Previvors", or "pre-survivors", are individuals who do not have cancer but have a genetic predisposition to cancer. One such example is women with BRCA mutations. As a result of their predisposition to cancer, many will undergo a bilateral salpingo-oophorectomy when they are premenopausal. For premenopausal women, the removal of ovaries results in the depletion of estrogen, immediate menopause, and, in many cases, resultant Sexuality, Intimacy, and Menopausal Symptoms (SIMS). Furthermore, they may undergo changes in body image...
June 3, 2017: Maturitas
https://www.readbyqxmd.com/read/28602118/effects-of-endocrine-disrupting-chemicals-and-epigenetic-modifications-in-ovarian-cancer-a-review
#20
Ratika Samtani, Noopur Sharma, Deepali Garg
Ovarian cancer (OC) is a relatively fatal female reproductive malignancy. Since the underlying causes are uncertain, it brings us to believe that both genetic and external factors contribute toward development of this lethal disorder. Exposure to endocrine-disrupting chemicals (EDCs) in the form of occupational usage of pesticides, fungicides, herbicides, plasticizers, cosmetics, and so on is potentially carcinogenic and their ability to cause epigenetic modifications has led us to hypothesize that they may play a catalytic role in OC progression...
January 1, 2017: Reproductive Sciences
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