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Ovarian ablation

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https://www.readbyqxmd.com/read/29660381/arid1a-ablation-leads-to-multiple-drug-resistance-in-ovarian-cancer-via-transcriptional-activation-of-mrp2
#1
Qingyu Luo, Xiaowei Wu, Yiping Zhang, Tong Shu, Fang Ding, Hongyan Chen, Pengfei Zhao, Wan Chang, Xiaolin Zhu, Zhihua Liu
Multiple Drug Resistance (MDR) of ovarian cancer is a severe trouble for clinical treatment and always attributes to a bad prognosis. AT-rich interaction domain 1 A (ARID1A) has been recognized as a bona fide tumor suppressor gene in recent years, with the highest mutation rate in ovarian cancer. Previous study illustrated that ARID1A expression is negatively correlated with chemoresistance of ovarian cancer cases. However, the specific role of ARID1A in chemoresistance of ovarian cancer remains elusive. In this study, we showed that ARID1A knockdown in ovarian cancer cells significantly reduced their apoptosis rate and led to MDR, while ectopic expression of ARID1A showed opposite effects...
April 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29526793/-strategies-and-surgical-management-of-endometriosis-cngof-has-endometriosis-guidelines
#2
H Roman, M Ballester, J Loriau, M Canis, P A Bolze, J Niro, S Ploteau, C Rubod, C Yazbeck, P Collinet, B Rabischong, B Merlot, X Fritel
The article presents French guidelines for surgical management of endometriosis. Surgical treatment is recommended for mild to moderate endometriosis, as it decreases pelvic painful complaints and increases the likelihood of postoperative conception in infertile patients (A). Surgery may be proposed in symptomatic patients with ovarian endometriomas which diameter exceeds 20mm. Cystectomy allows for better postoperative pregnancy rates when compared to ablation using bipolar current, as well as for lower recurrences rates when compared to ablation using bipolar current or CO2 laser...
March 8, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29510964/-surgical-management-of-endometrioma-different-alternatives-in-term-of-pain-fertility-and-recurrence-cngof-has-endometriosis-guidelines
#3
C Rubod, E Jean Dit Gautier, C Yazbeck
Surgical management of ovarian endometrioma is most often part of a global approach of endometriosis pathology. Isolated endometrioma are rare. Laparoscopic cystectomy is the gold standard for surgical management of endometrioma. Nevertheless, this technique impacts the ovarian function. The hemostasis of the ovarian cyst bed should be performed to conserve the ovarian stroma. Ultrasonography-guided cyst aspiration, laparoscopic drainage and simple bipolar coagulation are not recommended as first line of treatment...
March 3, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29507619/gro-%C3%AE-and-il-8-enhance-ovarian-cancer-metastatic-potential-via-the-cxcr2-mediated-tak1-nf%C3%AE%C2%BAb-signaling-cascade
#4
Mingo Ming-Ho Yung, Hermit Wai-Man Tang, Patty Chun-Hui Cai, Thomas Ho-Yin Leung, Siew-Fei Ngu, Karen Kar-Loen Chan, Dakang Xu, Huijuan Yang, Hextan Yuen-Sheung Ngan, David Wai Chan
Intraperitoneal metastasis is a common occurrence and is usually involved in the poor prognosis of ovarian cancer. Its specific metastatic pattern implies that certain indispensable microenvironmental factors secreted in the peritoneal cavity can direct metastatic ovarian cancer cells to permissive niches for secondary lesion formation. However, the underlying molecular mechanisms are ill defined. Herein, we report that GRO-α and IL-8 are predominately upregulated in culture media derived from either normal or cancerous omenta and are associated with increased ovarian cancer aggressiveness...
2018: Theranostics
https://www.readbyqxmd.com/read/29467381/tmco1-is-essential-for-ovarian-follicle-development-by-regulating-er-ca-2-store-of-granulosa-cells
#5
Zhongshuai Sun, Hui Zhang, Xi Wang, Qiao-Chu Wang, Chuanchao Zhang, Jiu-Qiang Wang, Yi-Han Wang, Chao-Qiang An, Ke-Yan Yang, Yun Wang, Fei Gao, Caixia Guo, Tie-Shan Tang
TMCO1 (transmembrane and coiled-coil domains 1) is an endoplasmic reticulum (ER) transmembrane protein that actively prevents Ca2+ stores from overfilling. To characterize its physiological function(s), we generated Tmco1-/- knockout (KO) mice. In addition to the main clinical features of human cerebrofaciothoracic (CFT) dysplasia spectrum, Tmco1-/- females manifest gradual loss of ovarian follicles, impaired ovarian follicle development, and subfertility with a phenotype analogous to the premature ovarian failure (POF) in women...
February 21, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29466932/a-single-radioactive-iodine-treatment-has-a-deleterious-effect-on-ovarian-reserve-in-women-with-thyroid-cancer-results-of-a-prospective-pilot-study
#6
Iris Yaish, Foad Azem, Orit Gutfeld, Zmira Silman, Merav Serebro, Orli Sharon, Gabi Shefer, Rona Limor, Naftali Stern, Karen M Tordjman
BACKGROUND: Women of reproductive age with differentiated thyroid cancer (DTC) often need to receive radioactive iodine (RAI) treatment after surgery. In contrast to the well documented effect of RAI on testicular function, the potential negative effects of this treatment on ovarian reserve have been largely dismissed. The objective of this pilot study was to examine the possibility that RAI treatment is deleterious to the ovarian reserve by prospectively measuring the concentration of anti-Müllerian hormone (AMH) after this treatment...
February 21, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29401296/changes-in-keratin-8-18-expression-in-human-granulosa-cell-lineage-are-associated-to-cell-death-survival-events-potential-implications-for-the-maintenance-of-the-ovarian-reserve
#7
F Gaytan, C Morales, J Roa, M Tena-Sempere
STUDY QUESTION: Is keratin 8/18 (K8/K18) expression linked to cell death/survival events in the human granulosa cell lineage? SUMMARY ANSWER: A close association exists between changes in K8/K18 expression and cell death/survival events along the human granulosa cell lineage lifespan. WHAT IS KNOWN ALREADY: In addition to their structural and mechanical functions, K8/K18 play essential roles regulating cell death, survival and differentiation in several non-gonadal epithelial tissues...
February 1, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29394693/-combination-treatments-to-the-huge-ovarian-cancer-with-liver-metastases
#8
Yasunori Hasuike, Yasushi Kanaoka, Ichiro Higuchi, Hirosumi Imoto, Sanae Hosomi, Akira Ishikawa, Yosuke Akiyama, Takahiko Tanigawa, Makoto Miyamoto
We report a CR case of huge ovarian cancer with peritoneal and liver metastases who was operated bilateral ovaries, uterus and peritoneal metastases at first, followed by systemic chemotherapy and performed 4 times of radiofrequency ablation (RFA)and 2 times of liver resection(LR). The case was a 50-year-old woman. She suffered with bowel enlargement from over 1 year ago. Preoperative MRI finding was huge ovarian serous cyst with partial solid tumor inside. The major axis was about 30 cm. CA125 and CA19-9 levels were elevated...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29360538/ccrk-is-a-novel-signalling-hub-exploitable-in-cancer-immunotherapy
#9
REVIEW
Myth T Mok, Jingying Zhou, Wenshu Tang, Xuezhen Zeng, Antony W Oliver, Simon E Ward, Alfred S Cheng
Cyclin-dependent kinase 20 (CDK20), or more commonly referred to as cell cycle-related kinase (CCRK), is the latest member of CDK family with strong linkage to human cancers. Accumulating studies have reported the consistent overexpression of CCRK in cancers arising from brain, colon, liver, lung and ovary. Such aberrant up-regulation of CCRK is clinically significant as it correlates with tumor staging, shorter patient survival and poor prognosis. Intriguingly, the signalling molecules perturbed by CCRK are divergent and cancer-specific, including the cell cycle regulators CDK2, cyclin D1, cyclin E and RB in glioblastoma, ovarian carcinoma and colorectal cancer, and KEAP1-NRF2 cytoprotective pathway in lung cancer...
March 1, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29329412/lhx8-ablation-leads-to-massive-autophagy-of-mouse-oocytes-associated-with-dna-damage%C3%A2
#10
Laura D'Ignazio, Marc Michel, Melissa Beyer, Kassimier Thompson, Antonino Forabosco, David Schlessinger, Emanuele Pelosi
Following proliferation of oogonia in mammals, great numbers of germ cells are discarded, primarily by apoptosis, while the remainder form primordial follicles (the ovarian reserve) that determine fertility and reproductive lifespan. More massive, rapid, and essentially total loss of oocytes, however, occurs when the transcription factor Lhx8 is ablated-though the cause and mechanism of germ cell loss from the Lhx8-/- ovaries has been unknown. We found that Lhx8-/- ovaries maintain the same number of germ cells throughout embryonic development; rapid decrease in the pool of oocytes starts shortly before birth...
January 10, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29324540/metastatic-involvement-of-lesser-sac-in-advanced-epithelial-ovarian-cancer
#11
Asima Mukhopadhyay, Nicolò Bizzarri, Melissa Bradbury, Subir Sinha, Jaydip Bhaumik, C William Helm
OBJECTIVES: In advanced epithelial ovarian cancer (AOC), lesser sac (LS) metastasis particularly to the supragastric LS (SGLS) may be overlooked, resulting in unrecognized residual disease. We aimed to identify the frequency, distribution, and predictors of LS metastasis using laparoscopic evaluation at laparotomy and perioperative surgical complications associated with evaluation and resection/ablation. METHODS: Prospective observational study in consecutive patients with AOC undergoing laparotomy for primary or interval cytoreductive surgery in 2 centers between November 2013 and December 2016...
February 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29302874/anti-m%C3%A3-llerian-hormone-in-pre-menopausal-females-after-ablative-radioiodine-treatment-for-differentiated-thyroid-cancer
#12
Massimo Giusti, Miranda Mittica, Paola Comite, Claudia Campana, Stefano Gay, Michele Mussap
PURPOSE: In recent years, anti-Mullerian hormone (AMH) has been considered a reliable index of ovarian reserve. There are few data on AMH values in thyroid cancer. The aim of this study was to evaluate AMH levels in pre-menopausal women with a history of low-risk thyroid cancer. METHODS: Thirty-four women (aged 40.7 ± 6.7 years) were studied 7.1 ± 0.9 years after surgery and at least one RAI treatment. A group of 23 thyroid cancer women (41.6 ± 7...
January 4, 2018: Endocrine
https://www.readbyqxmd.com/read/29285022/recommendations-for-the-surgical-treatment-of-endometriosis-part-1-ovarian-endometrioma
#13
Ertan Saridogan, Christian M Becker, Anis Feki, Grigoris F Grimbizis, Lone Hummelshoj, Joerg Keckstein, Michelle Nisolle, Vasilios Tanos, Uwe A Ulrich, Nathalie Vermeulen, Rudy Leon De Wilde
Study question: What does this document on the surgical treatment of endometriosis jointly prepared by the European Society for Gynaecological Endoscopy (ESGE), ESHRE, and the World Endometriosis Society (WES) provide? Summary answer: This document provides recommendations covering technical aspects of different methods of surgery for endometriomas in women of reproductive age. What is already known: Endometriomas (ovarian endometriotic cysts) are a commonly diagnosed form of endometriosis, owing to the relative ease and accuracy of ultrasound diagnosis...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/29279355/gadd45%C3%AE-loss-ablates-innate-immunosuppression-in-cancer
#14
Daniela Verzella, Jason Bennett, Mariafausta Fischietti, Anil Kumar Thotakura, Camilla Recordati, Fabio Pasqualini, Daria Capece, Davide Vecchiotti, Daniel D'Andrea, Barbara Di Francesco, Marcella De Maglie, Federica Begalli, Laura Tornatore, Salvatore Papa, Toby Lawrence, Stuart Forbes, Antonio Sica, Edoardo Alesse, Francesca Zazzeroni, Guido Franzoso
T cell exclusion from the tumour microenvironment (TME) is a major barrier to overcoming immune escape. Here we identify a myeloid-intrinsic mechanism governed by the NF-κB effector molecule GADD45β that restricts tumour-associated inflammation and T cell trafficking into tumors. In various models of solid cancers refractory to immunotherapies, including hepatocellular carcinoma (HCC) and ovarian adenocarcinoma, Gadd45b inhibition in myeloid cells restored activation of pro-inflammatory tumour-associated macrophages (TAM) and intratumoural immune infiltration, thereby diminishing oncogenesis...
December 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/29274928/optimal-adjuvant-endocrine-treatment-of-er-her2-breast-cancer-patients-by-age-at-diagnosis-a-population-based-cohort-study
#15
G M H E Dackus, K Jóźwiak, G S Sonke, E van der Wall, P J van Diest, M Hauptmann, S Siesling, S C Linn
BACKGROUND: Prior randomised controlled trials on adjuvant hormonal therapy included HER2any patients; however, a differential effect of aromatase inhibitors (AIs) versus tamoxifen (TAM) may have been missed in ER+/HER2+ patients that comprise 7-15% of all breast cancer patients. In addition, a woman's hormonal microenvironment may influence sensitivity to TAM and AIs in the adjuvant setting, which changes during menopausal transition, a process that takes years. We studied the efficacy of AIs versus TAM in ER+/HER2+ breast cancer patients grouped by age at diagnosis as a proxy for menopausal status using treatment and outcome data from the nationwide population-based Netherlands Cancer Registry (NCR)...
February 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29261681/decreased-expression-of-lethal-giant-larvae-causes-ovarian-follicle-cell-outgrowth-in-the-drosophila-scutoid-mutant
#16
Chen-Yuan Tseng, Hwei-Jan Hsu
Snail, a zinc-finger transcription factor, controls the process of epithelial-mesenchymal transition, and ectopic expression of this protein may produce cells with stem cell properties. Because the effect of Snail expression in ovarian epithelial cells remains unclear, we generated Drosophila ovarian follicle stem cells (FSCs) with homozygous Scutoid (Sco) mutation. The Sco mutation is a reciprocal transposition that is known to induce ectopic Snail activity. We found that Sco mutant FSCs showed excess proliferation and high competitiveness for niche occupancy, and the descendants of this lineage formed outgrowths that failed to enter the endocycle...
2017: PloS One
https://www.readbyqxmd.com/read/29208899/in-vivo-transplantation-of-3d-encapsulated-ovarian-constructs-in-rats-corrects-abnormalities-of-ovarian-failure
#17
Sivanandane Sittadjody, Justin M Saul, John P McQuilling, Sunyoung Joo, Thomas C Register, James J Yoo, Anthony Atala, Emmanuel C Opara
Safe clinical hormone replacement (HR) will likely become increasingly important in the growing populations of aged women and cancer patients undergoing treatments that ablate the ovaries. Cell-based HRT (cHRT) is an alternative approach that may allow certain physiological outcomes to be achieved with lower circulating hormone levels than pharmacological means due to participation of cells in the hypothalamus-pituitary-ovary feedback control loop. Here we describe the in vivo performance of 3D bioengineered ovarian constructs that recapitulate native cell-cell interactions between ovarian granulosa and theca cells as an approach to cHRT...
December 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/29208873/correlation-between-seropositivity-of-chlamydia-trachomatis-and-tubal-and-or-pelvic-pathology-detected-by-diagnostic-laparoscopy-in-subfertile-women
#18
N Begum, S A Anwary, M Alfazzaman, Z Mahzabin, F Deeba, M A Mostafa, M Akhter, M M Rahman
This prospective observational study was carried out in the Infertility Unit, Department of Obstetrics and Gynaecology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, from February 2011 to December 2013. Sixty-nine (69) subfertile women who were seropositive for Chlamydia Trachomatis were included in this study. Inclusion criteria was patients with sub-fertility having age between 22 and 40 years, seeking infertility treatment, normal ovarian function, all normozoospermic male partner, duration of infertility ranged from 1...
October 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29172851/intrinsic-subtypes-and-benefit-from-postmastectomy-radiotherapy-in-node-positive-premenopausal-breast-cancer-patients-who-received-adjuvant-chemotherapy-results-from-two-independent-randomized-trials
#19
RANDOMIZED CONTROLLED TRIAL
Tinne Laurberg, Trine Tramm, Torsten Nielsen, Jan Alsner, Silje Nord, Simen Myhre, Therese Sørlie, Samuel Leung, Cheng Fan, Charles Perou, Karen Gelmon, Jens Overgaard, David Voduc, Aleix Prat, Maggie Chon U Cheang
BACKGROUND: The study of the intrinsic molecular subtypes of breast cancer has revealed differences among them in terms of prognosis and response to chemotherapy and endocrine therapy. However, the ability of intrinsic subtypes to predict benefit from adjuvant radiotherapy has only been examined in few studies. METHODS: Gene expression-based intrinsic subtyping was performed in 228 breast tumors collected from two independent post-mastectomy clinical trials (British Columbia and the Danish Breast Cancer Cooperative Group 82b trials), where pre-menopausal patients with node-positive disease were randomized to adjuvant radiotherapy or not...
January 2018: Acta Oncologica
https://www.readbyqxmd.com/read/29162714/ablation-of-an-ovarian-tumor-family-deubiquitinase-exposes-the-underlying-regulation-governing-the-plasticity-of-cell-cycle-progression-in-toxoplasma-gondii
#20
Animesh Dhara, Rodrigo de Paula Baptista, Jessica C Kissinger, E Charles Snow, Anthony P Sinai
The Toxoplasma genome encodes the capacity for distinct architectures underlying cell cycle progression in a life cycle stage-dependent manner. Replication in intermediate hosts occurs by endodyogeny, whereas a hybrid of schizogony and endopolygeny occurs in the gut of the definitive feline host. Here, we characterize the consequence of the loss of a cell cycle-regulated<u>o</u>varian<u>tu</u>mor (OTU family) deubiquitinase, OTUD3A of Toxoplasma gondii (TgOTUD3A; TGGT1_258780), in T...
November 21, 2017: MBio
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