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https://www.readbyqxmd.com/read/29221157/high-ptpn13-expression-in-high-grade-serous-ovarian-carcinoma-is-associated-with-a-better-patient-outcome
#1
Véronique D'Hondt, Magalie Lacroix-Triki, Marta Jarlier, Florence Boissiere-Michot, Carole Puech, Peter Coopman, Dionyssios Katsaros, Gilles Freiss
Background: Chromosome 4q loss of heterozygosity (LOH) is frequently observed in high-grade serous ovarian carcinoma (HGSOC). However, this LOH has not been clearly associated with the inactivation of any tumor suppressor gene(s). As the tumor suppressor gene PTPN13 is located on chromosome 4q21, we investigated its expression in HGSOC. Methods: PTPN13 protein expression was investigated by immunohistochemistry (IHC) in normal ovary epithelium and in 30 HGSOC samples, whereas PTPN13 mRNA expression was quantified by RT-PCR in another independent cohort of 28 HGSOC samples...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29208958/the-positivity-of-estrogen-receptor-and-progesterone-receptor-may-not-be-associated-with-metastasis-and-recurrence-in-epithelial-ovarian-cancer
#2
Shouzhen Chen, Xujing Dai, Yifei Gao, Fang Shen, Jingxin Ding, Qi Chen
The estrogen (ER) or progesterone receptors (PR) is positively associated with better clinical outcomes in ovarian cancer. Whether metastasis or recurrence of ovarian cancer is correlated with this association has not been investigated. Data on 894 women with epithelial ovarian cancer were collected and the association between ER or PR positivity and peritoneal or lymph node metastases or recurrence was analysed. ER or PR positivity was higher in high-grade, low-grade serous and endometrioid carcinoma, but lower in mucinous and clear-cell carcinoma...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29207787/primary-adenocarcinoma-of-the-fallopian-tube-a-rare-entity
#3
Ankita Singh, Sudha Prasad, Ashok Kumar, Renu Tanwar
Primary fallopian tube carcinoma is an uncommon gynaecologic malignancy usually seen in postmenopausal females. We present a case of a 66-year-old postmenopausal female who presented with complaint of blood mixed vaginal discharge on and off for past one month. Workup of the patient revealed no abnormality other than presence of atypical squamous cells on Papanicolaou (PAP) smear. MRI showed mildly bulky cervix with around 4cc fluid in endometrial cavity. As the patient remained symptomatic and fluid in endometrial cavity persisted, total abdominal hysterectomy with bilateral salpingo-oophorectomy was done...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29206664/chemoresistance-of-gastric-type-mucinous-carcinoma-of-the-uterine-cervix-a-study-of-the-sankai-gynecology-study-group
#4
Atsumi Kojima, Muneaki Shimada, Yoshiki Mikami, Shoji Nagao, Nobuhiro Takeshima, Toru Sugiyama, Norihiro Teramoto, Takako Kiyokawa, Junzo Kigawa, Ryuichiro Nishimura
OBJECTIVE: Gastric-type mucinous carcinoma (GAS) is a novel variant of mucinous carcinoma of the uterine cervix, characterized by aggressive clinical behavior and absence of high-risk human papillomavirus. We conducted this study to evaluate the chemosensitivity of GAS compared with that of usual-type endocervical adenocarcinoma (UEA) in patients who had been enrolled in our previous study. METHODS: Of 52 patients from our previous phase 2 study (SGSG005) of neoadjuvant chemotherapy with docetaxel and carboplatin for stage IB2 to IIB nonsquamous cervical cancer, 47 (stage IB2, 12; stage IIA2, 7; stage IIB, 28) were enrolled in this study with written informed consent...
December 4, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29204511/smarca4-germline-gene-mutation-in-a-patient-with-epithelial-ovarian-a-case-report
#5
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/29203914/synthetically-lethal-nanoparticles-for-treatment-of-endometrial-cancer
#6
Kareem Ebeid, Xiangbing Meng, Kristina W Thiel, Anh-Vu Do, Sean M Geary, Angie S Morris, Erica L Pham, Amaraporn Wongrakpanich, Yashpal S Chhonker, Daryl J Murry, Kimberly K Leslie, Aliasger K Salem
Uterine serous carcinoma, one of the most aggressive types of endometrial cancer, is characterized by poor outcomes and mutations in the tumour suppressor p53. Our objective was to engender synthetic lethality to paclitaxel (PTX), the frontline treatment for endometrial cancer, in tumours with mutant p53 and enhance the therapeutic efficacy using polymeric nanoparticles (NPs). First, we identified the optimal NP formulation through comprehensive analyses of release profiles and cellular-uptake and cell viability studies...
December 4, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/29203787/crispr-cas9-derived-models-of-ovarian-high-grade-serous-carcinoma-targeting-brca1-pten-and-nf1-and-correlation-with-platinum-sensitivity
#7
Josephine B Walton, Malcolm Farquharson, Susan Mason, Jennifer Port, Bjorn Kruspig, Suzanne Dowson, David Stevenson, Daniel Murphy, Martin Matzuk, Jaeyeon Kim, Seth Coffelt, Karen Blyth, Iain A McNeish
Transplantable murine models of ovarian high grade serous carcinoma (HGSC) remain an important research tool. We previously showed that ID8, a widely-used syngeneic model of ovarian cancer, lacked any of the frequent mutations in HGSC, and used CRISPR/Cas9 gene editing to generate derivatives with deletions in Trp53 and Brca2. Here we have used one ID8 Trp53 -/- clone to generate further mutants, with additional mutations in Brca1, Pten and Nf1, all of which are frequently mutated or deleted in HGSC. We have also generated clones with triple deletions in Trp53, Brca2 and Pten...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29203116/diagnosis-and-management-of-metastatic-neoplasms-with-unknown-primary
#8
REVIEW
Tilmann Bochtler, Harald Löffler, Alwin Krämer
In cancer of unknown primary (CUP), metastases are clinically and histologically confirmed, but the primary tumor site remains elusive after extensive work-up. CUPs make up for 2-3% of all epithelial malignancies. The two prevailing histologies are adenocarcinomas and undifferentiated carcinomas, whereas squamous cell carcinomas, neuroendocrine carcinomas and rare histologies account for the remaining 10%. The diagnostic work-up in CUP relies strongly on a detailed immunohistological (IHC) analysis in order to characterize the tumor type, nowadays aided by molecular techniques...
November 26, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29197096/observations-on-the-origin-of-ovarian-cortical-inclusion-cysts-in-women-undergoing-risk-reducing-salpingo-oophorectomy
#9
Kay J Park, Prusha Patel, Irina Linkov, Anjali Jotwani, Noah Kauff, Malcolm C Pike
AIMS: Evidence suggests that up to 70% of high-grade serous ovarian carcinomas (HGSCs) potentially arise from fallopian tube fimbriae, and that many of the remaining cases arise from within the ovary in cortical inclusion cysts (CICs) with a Müllerian phenotype (Müllerian-CICs). It has been proposed that Müllerian-CICs arise either from metaplasia of mesothelial ovarian surface epithelium (OSE) entrapped within the ovary after ovulation, or from normal tubal cells entrapped post-ovulation...
December 2, 2017: Histopathology
https://www.readbyqxmd.com/read/29195029/association-of-mgmt-promoter-methylation-with-tumorigenesis-features-in-patients-with-ovarian-cancer-a-systematic-meta-analysis
#10
Baoli Qiao, Zhenyu Zhang, Yanfang Li
BACKGROUND: The MGMT is a key tumor suppressor gene and aberrant promoter methylation has been reported in many cancers. However, the relationship between MGMT promoter methylation and ovarian cancer remains controversial. This meta-analysis was first conducted to estimate the clinical significance of MGMT promoter methylation in ovarian carcinoma. METHODS: Literature search was performed in the PubMed, Embase, EBSCO and Cochrane Library databases. The pooled odds ratio (OR) and their corresponding 95% confidence interval (95% CI) were summarized...
November 30, 2017: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/29194708/metastatic-serous-carcinoma-presenting-as-inflammatory-carcinoma-over-the-breast-report-of-two-cases-and-literature-review
#11
Gauri Panse, Veerle Bossuyt, Christine J Ko
Non-mammary metastases involving breast are rare and most commonly involve the breast parenchyma. Infrequently, metastasis from an extramammary primary site presents as inflammatory carcinoma over the breast. Diagnosis of such lesions can be challenging, especially in patients with co-existing primary breast carcinoma. Few such cases have been described in literature; however, none of the previously reported cases had a prior history of primary breast carcinoma. We present two patients with history of breast carcinoma and serous carcinoma of ovarian/peritoneal origin that presented with inflammatory carcinoma over the breast...
December 1, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29194190/an-evaluation-of-frozen-section-and-lymph-node-dissection-results-for-mucinous-ovarian-tumors
#12
Marisa R Moroney, Miriam D Post, Amber A Berning, Jeanelle Sheeder, Bradley R Corr
OBJECTIVES: Intraoperative frozen section has greater than 90% accuracy for ovarian tumors; however, mucinous histology has been shown to be associated with increased frozen section inaccuracy. Recent data demonstrate that primary ovarian mucinous carcinomas have no lymph node involvement, even when extraovarian disease is present, and therefore may not require lymph node dissection. Our primary objective is to evaluate the accuracy of identifying mucinous histology on frozen section...
November 30, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29189263/b7-h4-is-inversely-correlated-with-t-cell-infiltration-in-clear-cell-but-not-serous-or-endometrioid-ovarian-cancer
#13
Gabriel M Pagnotti, Richard M Atkinson, Jamie Romeiser, Ali Akalin, Mallory B Korman, Kenneth R Shroyer
B7-H4, a tumor-associated cell surface protein, is expressed in endometrioid (EM), serous (SE), and clear cell (CC) ovarian carcinomas. Prior in vitro studies from other groups indicated that elevated B7-H4 expression by tumor cells blocks T-cell activation; therefore, it had been postulated to play a role in shielding cancer cells from immune surveillance and averting apoptotic programs. To test the validity of these hypotheses, the present study was designed to compare the immunohistochemical staining intensity of B7-H4 in tumor cells of ovarian cancers with the number of tumor-infiltrating T cells and macrophages and with the levels of caspase-3 staining in apoptotic debris...
October 20, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29187928/hormone-receptor-expression-status-of-epithelial-ovarian-cancer-in-ibadan-south-western-nigeria
#14
Mustapha Akanji Ajani, Ayodeji Salami, Olutosin Alaba Awolude, Abideen Olayiwola Oluwasola
Introduction: Epidemiological evidence strongly suggests that steroid hormones are implicated in the pathogenesis of ovarian cancer. Estrogen receptor (ER) and Progesterone receptor (PR) are prognostic indicators for a number of epithelial tumors and may play the same role in ovarian cancers. This study aims to evaluate the expression of ER and PR in epithelial ovarian cancer (EOC) in an African population and compare it with other prognostic factors such as age, International Federation of Gynaecology and Obstetrics (FIGO) stage, grade and histological subtype...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29187446/tp53-mutation-status-of-tubo-ovarian-and-peritoneal-high-grade-serous-carcinoma-with-a-wild-type-p53-immunostaining-pattern
#15
Kiyong Na, Ji-Youn Sung, Hyun-Soo Kim
BACKGROUND/AIM: Diffuse and strong nuclear p53 immunoreactivity and a complete lack of p53 expression are regarded as indicative of missense and nonsense mutations, respectively, of the TP53 gene. Tubo-ovarian and peritoneal high-grade serous carcinoma (HGSC) is characterized by aberrant p53 expression induced by a TP53 mutation. However, our experience with some HGSC cases with a wild-type p53 immunostaining pattern led us to comprehensively review previous cases and investigate the TP53 mutational status of the exceptional cases...
December 2017: Anticancer Research
https://www.readbyqxmd.com/read/29185273/trends-of-low-grade-serous-ovarian-carcinoma-in-the-united-states
#16
Koji Matsuo, Hiroko Machida, Brendan H Grubbs, Anil K Sood, David M Gershenson
No abstract text is available yet for this article.
January 2018: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/29185270/impact-of-lymph-node-ratio-on-survival-in-stage-iii-ovarian-high-grade-serous-cancer-a-turkish-gynecologic-oncology-group-study
#17
Ali Ayhan, Nazlı Topfedaisi Ozkan, Mustafa Erkan Sarı, Husnu Celik, Murat Dede, Özgür Akbayır, Kemal Güngördük, Hanifi Şahin, Ali Haberal, Tayfun Güngör, Macit Arvas, Mehmet Mutlu Meydanlı
OBJECTIVE: The purpose of this study was to investigate the prognostic value of lymph node ratio (LNR) in patients with stage III ovarian high-grade serous carcinoma (HGSC). METHODS: A multicenter, retrospective department database review was performed to identify patients with ovarian HGSC at 6 gynecologic oncology centers in Turkey. A total of 229 node-positive women with stage III ovarian HGSC who had undergone maximal or optimal cytoreductive surgery plus systematic lymphadenectomy followed by paclitaxel plus carboplatin combination chemotherapy were included...
January 2018: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/29179445/adamts16-mutations-sensitize-ovarian-cancer-cells-to-platinum-based-chemotherapy
#18
Maya Yasukawa, Yuexin Liu, Limei Hu, David Cogdell, Kshipra M Gharpure, Sunila Pradeep, Archana S Nagaraja, Anil K Sood, Wei Zhang
Ovarian cancer is one of the most lethal malignant tumors in women. The prognosis of ovarian cancer patients depends, in part, on their response to platinum-based chemotherapy. Our recent analysis of genomics and clinical data from the Cancer Genome Atlas demonstrated that somatic mutations of ADAMTS 1, 6, 8, 9, 15, 16, 18 and L1 genes were associated with higher sensitivity to platinum and longer progression-free survival, overall survival, and platinum-free survival duration in 512 patients with high-grade serous ovarian carcinoma...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29170871/the-diagnostic-role-of-pten-and-arid1a-in-serous-effusions
#19
Ben Davidson, Maurizio Pinamonti, Dolors Cuevas, Arild Holth, Pio Zeppa, Thomas Hager, Jeremias Wohlschlaeger, Martin Tötsch
The aim of this study was to analyze the diagnostic role of PTEN and ARID1A in effusion cytology. Effusions (n = 279), consisting of 226 carcinomas (70 ovarian, 64 breast, 36 lung, and 15 uterine corpus carcinomas; 41 carcinomas of other origin) and 53 malignant mesotheliomas, were analyzed for PTEN and ARID1A expression using immunohistochemistry. PTEN was preserved in 166 (59%) tumors, partially lost in 38 (14%), and absent in 75 (27%), with lower expression in malignant mesotheliomas compared to carcinomas, though not significantly (p = 0...
November 24, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29168038/ovarian-serous-carcinomas-acquire-cisplatin-resistance-and-increased-invasion-through-downregulation-of-the-high-temperature-required-protein-a2-htra2-following-repeated-treatment-with-cisplatin
#20
Hiroaki Soyama, Morikazu Miyamoto, Masashi Takano, Tadashi Aoyama, Hiroko Matsuura, Takahiro Sakamoto, Kazuki Takasaki, Mika Kuwahara, Kento Kato, Tomoyuki Yoshikawa, Hideki Iwahashi, Hitoshi Tsuda, Kenichi Furuya
High-temperature-required protein A2 (HtrA2) is one of the serine proteases related to apoptosis. HtrA2 protein expression has been associated with cisplatin resistance and poor prognosis in ovarian serous adenocarcinoma (SAC). The aim of this study was to understand the influence of HtrA2 on repeated treatment with cisplatin. The change in HtrA2 expression in 31 ovarian cancers was investigated by immunohistochemical analysis, before and after cisplatin-based chemotherapy, and the association between HtrA2 expression after chemotherapy and prognosis was analyzed...
November 22, 2017: Medical Oncology
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