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https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#1
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28810294/-morphologic-features-of-fallopian-tubal-epithelium-in-pelvic-high-grade-serous-carcinoma
#2
R J Zhao, Y Y Wang, Z Li, K Y Wu, L F Kong, W X Zheng
Objective: To study the pathologic features of fallopian tubal epithelium in patients with pelvic high-grade serous carcinoma (HGSC), to investigate its role in pelvic serous carcinogenesis and to reclassify the primary site of HGSC based on recently proposed criteria. Methods: The fallopian tubes in 58 cases of pelvic HGSC (54 cases of ovarian primary, 3 cases of tubal primary, 1 case of peritoneum) and 25 cases of pelvic non-HGSC (5 cases of ovarian low-grade serous cancer, 9 cases of endometrioid cancer, and 11 cases of clear cell ovary carcinoma) were collected from June 2015 to December 2016, and serially examined under light microscope (SEE-FIM protocol)...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28800309/the-prognostic-role-of-preoperative-serum-ca125-levels-in-patients-with-advanced-endometrial-carcinoma
#3
Mitra Modarres-Gilani, Maryam Vaezi, Mamak Shariat, Narges Zamani, Roghaiyeh Nourizadeh
BACKGROUND: Lifetime risk of developing endometrial cancer is 2.17%. There is controversy regarding the predictive value of Cancer Antigen 125 (CA125) in endometrial cancer as well as the significance of its relationship with prognostic factors and appropriate cut-off value. OBJECTIVE: The aim of the present study was to investigate the prognostic role of CA125 in advanced endometrial carcinoma and determination of the appropriate cut-off value. METHODS: A sample of 91 patients was retrospectively selected from a population of 501 patients suffering from endometrial cancer during 1995 to 2015 in accordance with the inclusion criteria...
August 4, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28799235/dipeptidyl-peptidase-4-serum-activity-and-concentration-are-increased-in-women-with-polycystic-ovary-syndrome
#4
Sindy Blauschmidt, Thomas Greither, Katharina Lampe, Solveig Köller, Petra Kaltwaßer, Hermann M Behre
OBJECTIVE: Polycystic ovary syndrome (PCOS) is a complex disease, the etiology of which is not well understood. Alterations in potential candidate genes involved in the biosynthesis and metabolism of androgens, folliculogenesis, and insulin and glucose metabolism have been suggested as possible etiologies. Dipeptidyl peptidase-4 (DPP4) plays a key role in glucose homeostasis and, thus, in the regulation of insulin secretion. The aim of our study was to analyze the DPP4 activity and concentrations in the serum of PCOS and non-PCOS patients and, additionally, study the activation of the DPP4 promoter by androgens in vitro...
August 11, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28772202/the-role-of-surgical-excision-for-the-krukenberg-tumour-a-case-report
#5
David Lam, Eugene Ong
INTRODUCTION: Krukenberg tumour (KT), which represents carcinoma in the ovary, is an uncommon manifestation of metastatic colorectal cancer. It is associated with poor prognosis and a high incidence of peritoneal metastatic disease. PRESENTATION OF CASE: The authors present a case of a 51-year-old female who had a symptomatic, metachronous right ovarian KT diagnosed 12 months after her initial resection. Surgery was performed to excise the 23cm tumour as well as the contralateral ovary and isolated peritoneal disease, with an R0 resection achieved...
July 25, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28752845/mismatch-repair-status-and-pd-l1-expression-in-clear-cell-carcinomas-of-the-ovary-and-endometrium
#6
Brian C Willis, Emily A Sloan, Kristen A Atkins, Mark H Stoler, Anne M Mills
Clear cell carcinoma represents a distinct histologic type of müllerian carcinoma that is resistant to conventional chemotherapy. Expression of programmed cell death ligand (PD-L1) has been associated with immune evasion in numerous tumor types and may be used to identify patients who will benefit from targeted immunotherapy, particularly in the setting of mismatch repair defects. We evaluated PD-L1 expression in 23 ovarian clear cell carcinomas and 21 endometrial clear cell carcinomas, and correlated expression with mismatch repair status...
July 28, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28752709/-expression-and-clinical-significance-of-dnajb11-in-epithelial-ovarian-cancer
#7
Yao Guorong, F U Yunfeng, L I Yanli, Zhou Caiyun, L V Weiguo
Objective: To study the expression of DNAJB11 protein in epithelial ovarian cancer tissues and its clinical significance. Methods: Immunohistochemistry was used to examine DNAJB11 expressions in 105 tissue specimens of ovarian epithelial carcinoma, 23 normal ovarian tissues, 17 tissues of benign tumor, and 13 tissues of of borderline tumor. The correlations between protein expression and clinicopathological factors were analyzed by Chi square test.The correlations between protein expression and survival were analyzed by Kaplan-Meier and Cox regression...
March 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28751996/leiomyosarcoma-and-squamous-cell-carcinoma-arising-in-mature-cystic-teratoma-of-the-ovary
#8
Tip Pongsuvareeyakul, Kornkanok Sukpan, Somjet Chaicharoen, Surapan Khunamornpong
The occurrence of malignant transformation in mature cystic teratoma of the ovary is rare, with squamous cell carcinoma being the most common histologic type. Sarcomatous transformation has been rarely described in the literature. We present a case of leiomyosarcoma with a minor component of squamous cell carcinoma arising in mature cystic teratoma of ovary in a 65-year-old woman. The malignant tumor showed two distinct components of sarcomatous and invasive epithelial elements, which were confirmed by immunostaining...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28750749/incidental-focal-colonic-uptake-in-studies-18-f-fdg-pet-ct
#9
L Servente, V Gigirey, M García Fontes, O Alonso
OBJECTIVES: To assess the frequency of focal colonic uptake as an incidental observation in (18)F-FDG PET/CT studies, and to correlate this finding with histopathological results. MATERIAL AND METHODS: Out of a total of 3,176 PET/CT studies with (18)F-FDG systematic analysis was carried out on 30 studies in which colonic focal uptake was observed. Patients with known colorectal neoplasia were excluded. The maximum standardised uptake values (SUVm) and the morphological findings provided by the CT were recorded...
July 24, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28748640/expression-of-nad-p-h-quinone-dehydrogenase-1-nqo1-is-increased-in-the-endometrium-of-women-with-endometrial-cancer-and-women-with-polycystic-ovary-syndrome
#10
William Atiomo, Mohamad Nasir Shafiee, Caroline Chapman, Veronika M Metzler, Jad Abouzeid, Ayşe Latif, Amy Chadwick, Sarah Kitson, Vanitha N Sivalingam, Ian J Stratford, Catrin S Rutland, Jenny L Persson, Niels Ødum, Pablo Fuentes-Utrillia, Jennie N Jeyapalan, David M Heery, Emma J Crosbie, Nigel P Mongan
OBJECTIVE: Women with a prior history of polycystic ovary syndrome (PCOS) have an increased risk of endometrial cancer (EC). AIM: To investigate whether the endometrium of women with PCOS possess gene expression changes similar to those found in EC. DESIGN AND METHODS: Patients with EC, PCOS and control women unaffected by either PCOS or EC were recruited into a cross-sectional study at the Nottingham University Hospital, UK. For RNA sequencing, representative individual endometrial biopsies were obtained from women with EC, PCOS and a woman unaffected by PCOS or EC...
July 27, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28746917/cytological-features-of-the-large-cell-variant-of-small-cell-ovarian-carcinoma-in-young-patients-with-hypercalcemia-histological-findings-and-review-of-the-literature
#11
Helen J Trichia, Paraskevi Tziakou, Dimitrios C Papatheodorou, Joanna Lekka
OBJECTIVE: To present the cytological features of a very rare and lethal ovarian neoplasm occurring in the young. STUDY DESIGN: We reviewed the cytological findings as they presented in touch imprints obtained from an ovarian mass sent to our department for frozen section investigation. RESULTS: Smears were highly cellular. The cells were of intermediate size with a moderate amount of microvacuolated, pale, or eosinophilic cytoplasm with indistinct cell borders...
July 27, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28737447/pmab-52-specific-and-sensitive-monoclonal-antibody-against-cat-podoplanin-for-immunohistochemistry
#12
Shinji Yamada, Shunsuke Itai, Takuro Nakamura, Miyuki Yanaka, Noriko Saidoh, Yao-Wen Chang, Saori Handa, Hiroyuki Harada, Yumiko Kagawa, Osamu Ichii, Satoru Konnai, Mika K Kaneko, Yukinari Kato
Podoplanin (PDPN) is expressed in several normal tissues, such as lymphatic endothelial cells, podocytes of renal glomerulus, and type I alveolar cells of lung. PDPN activates platelet aggregation by binding to C-type lectin-like receptor-2 (CLEC-2) on platelet. Although monoclonal antibodies (mAbs) against human PDPN, mouse PDPN, rat PDPN, rabbit PDPN, dog PDPN, and bovine PDPN have been established, anticat PDPN (cPDPN) mAbs have not been developed. In this study, we immunized mice with Chinese hamster ovary (CHO)-K1 cell lines expressing cPDPN, and developed anti-cPDPN mAbs...
July 24, 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28735441/pathology-of-neuroendocrine-tumours-of-the-female-genital-tract
#13
REVIEW
Brooke E Howitt, Paul Kelly, W Glenn McCluggage
Neuroendocrine tumours are uncommon or rare at all sites in the female genital tract. The 2014 World Health Organisation (WHO) Classification of neuroendocrine tumours of the endometrium, cervix, vagina and vulva has been updated with adoption of the terms low-grade neuroendocrine tumour and high-grade neuroendocrine carcinoma. In the endometrium and cervix, high-grade neoplasms are much more prevalent than low-grade and are more common in the cervix than the corpus. In the ovary, low-grade tumours are more common than high-grade carcinomas and the term carcinoid tumour is still used in WHO 2014...
September 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28730785/pdcd1-strengthens-the-sensitivity-of-ovarian-cancer-to-cisplatin-chemotherapy-by-promoting-apoptosis
#14
Qian Li, Jie-Fan Gao, Bing-Li Qi
PURPOSE: The primary purpose of this study was to make clear the role of PDCD1 in the occurrence and progression of ovarian cancer, and explain its mechanism. METHODS: RT-PCR, westem blot, MTT and immunohistochemistry were used to detect the expression levels of PDCD1 mRNA and protein in human ovarian cancer cell lines (SKOV3, 3AO, CAOV3 and OVCAR3), human normal ovary, serous cystadenoma, and serous cystadenocarcinoma tissue. SKOV3, SKOV3-MOCK, and SKOV3-PDCD1 cells were subcutaneously injected into the armpit of nude mice to observe the effect of PDCD1 expression on tumorigenic ability...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28725636/epithelial-to-mesenchymal-transition-in-the-female-reproductive-tract-from-normal-functioning-to-disease-pathology
#15
REVIEW
Olena Bilyk, Mackenzie Coatham, Michael Jewer, Lynne-Marie Postovit
Epithelial-to-mesenchymal transition (EMT) is a physiological process that is vital throughout the human lifespan. In addition to contributing to the development of various tissues within the growing embryo, EMT is also responsible for wound healing and tissue regeneration later in adulthood. In this review, we highlight the importance of EMT in the development and normal functioning of the female reproductive organs (the ovaries and the uterus) and describe how dysregulation of EMT can lead to pathological conditions, such as endometriosis, adenomyosis, and carcinogenesis...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28709830/pathologic-findings-in-breast-fallopian-tube-and-ovary-specimens-in-non-brca-hereditary-breast-and-or-ovarian-cancer-syndromes-a-study-of-18-patients-with-deleterious-germline-mutations-in-rad51c-bard1-brip1-palb2-mutyh-or-chek2
#16
J Kenneth Schoolmeester, Ann M Moyer, McKinsey L Goodenberger, Gary L Keeney, Jodi M Carter, Jamie N Bakkum-Gamez
Germline BRCA mutations account for a significant proportion of genetic/familial risk of breast and ovarian cancer (GBOC) susceptibility, but a broader spectrum of GBOC susceptibility genes has emerged in recent years. Genotype to phenotype correlations are known for some established forms of GBOC, however whether such correlations exist for less common GBOC variants is unclear. We reviewed our institution's experience with non-BRCA GBOC, looking specifically for trends in pathologic and clinical features. Eighteen women with deleterious germline mutations in RAD51C (5 patients), BARD1 (1 patient), BRIP1 (2 patients), PALB2 (3 patients), MUTYH (2 patients) or CHEK2 (5 patients) were identified between January 2011 and December 2016...
July 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28700980/aurora-a-kinase-regulates-non-homologous-end-joining-and-poly-adp-ribose-polymerase-function-in-ovarian-carcinoma-cells
#17
Thuy-Vy Do, Jeff Hirst, Stephen Hyter, Katherine F Roby, Andrew K Godwin
Ovarian cancer is usually diagnosed at late stages when cancer has spread beyond the ovary and patients ultimately succumb to the development of drug-resistant disease. There is an urgent and unmet need to develop therapeutic strategies that effectively treat ovarian cancer and this requires a better understanding of signaling pathways important for ovarian cancer progression. Aurora A kinase (AURKA) plays an important role in ovarian cancer progression by mediating mitosis and chromosomal instability. In the current study, we investigated the role of AURKA in regulating the DNA damage response and DNA repair in ovarian carcinoma cells...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28700436/malignant-female-adnexal-tumor-of-probable-wolffian-origin-case-report-and-literature-review
#18
Shuhui Hong, Jing Cui, Li Li, Joseph Buscema, Casandra Liggins, Wenxin Zheng
Although most female adnexal tumors of probable Wolffian origin have a benign biologic behavior, occasional cases have exhibited malignant potential. We encountered a 50-yr-old woman with an uncommon female adnexal tumors of probable Wolffian origin, which involved bilateral ovaries, invaded the ipsilateral fallopian tube, and extended to the uterine serosa. The initial histopathologic presentation caused significant confusion in pathologic diagnosis. Multiple differential diagnoses including ovarian endometrioid carcinoma, Sertoli cell tumor, and metastasis from nongynecologic organs were considered...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28700429/mucosal-proliferations-in-completely-examined-fallopian-tubes-accompanying-ovarian-low-grade-serous-tumors-neoplastic-precursor-lesions-or-normal-variants-of-benign-mucosa
#19
Rebecca J Wolsky, Matt A Price, Charles J Zaloudek, Joseph T Rabban
Malignant transformation of the fallopian tube mucosa, followed by exfoliation of malignant cells onto ovarian and/or peritoneal surfaces, has been implicated as the origin of most pelvic high-grade serous carcinoma. Whether a parallel pathway exists for pelvic low-grade serous tumors [ovarian serous borderline tumor (SBT) and low-grade serous carcinoma (LGSC)] remains to be fully elucidated. The literature is challenging to interpret due to variation in the diagnostic criteria and terminology for cytologically low-grade proliferations of the fallopian tube mucosa, as well as variation in fallopian tube specimen sampling...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28698318/words-do-matter-a-systematic-review-on-how-different-terminology-for-the-same-condition-influences-management-preferences
#20
Brooke Nickel, Alexandra Barratt, Tessa Copp, Ray Moynihan, Kirsten McCaffery
OBJECTIVES: Changing terminology for low-risk, screen-detected conditions has now been recommended by several expert groups in order to prevent overdiagnosis and reduce the associated harms of overtreatment. However, the effect of terminology on patients' preferences for management is not well understood. This review aims to synthesise existing studies on terminology and its impact on management decision making. DESIGN: Systematic review. METHODS: Studies were included that compared two or more terminologies to describe the same condition and measured the effect on treatment or management preferences and/or choices...
July 10, 2017: BMJ Open
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