keyword
MENU ▼
Read by QxMD icon Read
search

Trophoblastic tumor

keyword
https://www.readbyqxmd.com/read/29228520/the-significance-of-trop2-expression-in-predicting-braf-mutations-in-papillary-thyroid-carcinoma
#1
Joon Seog Kong, Hyeon Jin Kim, Min-Jung Kim, Areumnuri Kim, Dalnim Lee, Kanghee Han, Sunhoo Park, Jae Soo Koh, Jae Kyung Myung
Background: Trophoblast antigen 2 (TROP2) is a human trophoblast cell-surface glycoprotein that is overexpressed in several types of epithelial cancers, and is suggested to be associated with an unfavorable prognosis. BRAF mutations are the most common genetic alteration in papillary thyroid carcinoma (PTC). We evaluated the correlation between TROP2 expression and BRAF mutation in PTC. Methods: First, we carried out pyrosequencing for BRAF mutations and immunohistochemistry for TROP2 expression with a tissue microarray consisting of 52 PTC cases...
December 11, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/29208243/resveratrol-mitigates-trophoblast-and-endothelial-dysfunction-partly-via-activation-of-nuclear-factor-erythroid-2-related-factor-2
#2
Seshini Gurusinghe, Annie G Cox, Rahana Rahman, Siow T Chan, Ruth Muljadi, Harmeet Singh, Bryan Leaw, Joanne C Mockler, Sarah A Marshall, Padma Murthi, Rebecca Lim, Euan M Wallace
INTRODUCTION: Maternal endothelial dysfunction underlying preeclampsia arises from excessive placental release of anti-angiogenic factors, such as soluble fms-like tyrosine kinase-1 (sFlt1), soluble endoglin (sEng) and activin A. Resveratrol, an activator of the nuclear factor erythroid 2-related factor-2 (Nrf2) transcription factor, mediates the gene expression of antioxidant and vasoprotective factors that may counter the endothelial damage imposed by these anti-angiogenic factors. The objective of this study was to assess whether resveratrol could reduce placental oxidative stress and production of anti-angiogenic factors in vitro and/or improve in vitro markers of endothelial dysfunction via Nrf2 activation...
December 2017: Placenta
https://www.readbyqxmd.com/read/29198970/the-choriocarcinoma-cell-line-jeg-3-upregulates-regulatory-t-cell-phenotypes-and-modulates-pro-inflammatory-cytokines-through-hla-g
#3
Wenna Nascimento Melsted, Sara Hyldig Matzen, Mads Hald Andersen, Thomas Vauvert F Hviid
An understanding of the interactions between immune cells and trophoblast cells, as well as choriocarcinoma cells, are of extreme importance in reproductive immunology and cancer immunology. In this study, we found that the human HLA-G-positive choriocarcinoma cell line JEG-3 upregulates CD4+CD25hiCD127lo T cells, increases the expression of HLA-G+CD4+ and CD8+ T cells, and decreases the expression of ILT2+ on CD4+ T cells in resting PBMCs after six days of co-culture. Expression of HLA-G on JEG-3 cells did not affect regulatory T cell phenotypes, but promoted modulation of pro-inflammatory cytokines IFN-γ, TNF-α and IL-17A...
November 30, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/29169400/hypermethylation-and-loss-of-retinoic-acid-receptor-responder-1-expression-in-human-choriocarcinoma
#4
H Huebner, R Strick, D L Wachter, S Kehl, P L Strissel, R Schneider-Stock, A Hartner, W Rascher, L C Horn, M W Beckmann, M Ruebner, F B Fahlbusch
BACKGROUND: Human placental development resembles tumorigenesis, due to the invasive and fusogenic potential of trophoblasts. However, these features are tightly controlled in trophoblasts. Disturbance of this spatial and temporal regulation is thought to contribute to the rare formation of choriocarcinomas. Promoter hypermethylation and loss of the tumor suppressor Retinoic acid receptor responder 1 (RARRES1) were shown to contribute to cancer progression. Our study investigated the epigenetic and transcriptional regulation of RARRES1 in healthy human placenta in comparison to choriocarcinoma cell lines and cases...
November 23, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29140877/atypical-placental-site-nodule-arising-in-a-postcesarean-section-scar-case-report-and-review-of-the-literature
#5
Whitney A McCarthy, Cherie Paquette, Mauro Colavita, W Dwayne Lawrence
The distinction between benign and malignant trophoblastic lesions often presents a diagnostic challenge, even in entities with defined morphologic and immunohistochemical criteria. Lesions arising from chorionic-type intermediate trophoblast, namely placental site nodule (PSN) and epithelioid trophoblastic tumor (ETT), can be distinguished by existing criteria. However, a putative intermediate lesion termed "atypical placental site nodule" (APSN) has been described in the literature but is not well-classified...
November 14, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29109863/pattern-of-gynaecological-malignancies-in-south-western-region-of-pakistan-an-overview-of-12-years
#6
Hina Manzoor, Hamida Naheed, Khushnaseeb Ahmad, Shehla Iftikhar, Muhammad Asif, Jamila Shuja, Neelam Sultan, Irfan Ali, Syed Inayatullah, Yasir Hayat Khan
Gynaecological malignancies contribute significantly to cancer burden and have a higher rate of mortality and morbidity. The aim of this retrospective study was to determine the pattern of gynaecological malignancies identified between January, 2000 and December, 2011, at the Centre for Nuclear Medicine and Radiotherapy (CENAR). At CENAR 5,072 female patients were registered with different malignancies, of which 632 cases were gynaecological malignancies. Ovarian cancer (47%) was the most common gynaecological malignancy, followed by cervical cancer (29%), uterine cancer (14%), vulvar and vaginal cancer (6%), and gestational trophoblastic neoplasm (4%)...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29108468/senescence-and-telomere-homeostasis-might-be-involved-in-placenta-percreta-preliminary-investigation
#7
Keren Tzadikevitch Geffen, Hilah Gal, Ifat Vainer, Ofer Markovitch, Aliza Amiel, Valery Krizhanovsky, Tal Biron-Shental
OBJECTIVE: Placenta percreta (PP) is an abnormal condition of trophoblast maturation and terminal differentiation through the uterine wall. We opted to study telomere homeostasis and senescence expression in trophoblasts from PP, the most severe subgroup of placenta accreta. STUDY DESIGN: Paraffin-embedded placental biopsies from pregnancies with percreta and normal placentation, matched by gestational age at delivery, were assessed for telomere length, aggregates, and senescence-associated heterochromatin foci using quantitative fluorescence in situ hybridization...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29056064/advances-in-human-chorionic-gonadotropin-detection-technologies-a-review
#8
Jing Fan, Mandy Wang, Chengyin Wang, Yu Cao
Human chorionic gonadotropin (HCG) is a glycoprotein secreted by placental trophoblast cells in pregnancy. HCG is a heterodimer composed of two different α- and β-subunits, with the latter being unique to HCG. As well as being the most important diagnostic markers for pregnancy, HCG is also a tumor marker, therefore, quantitative detection of HCG is of great value. Numerous advanced technologies have been developed for HCG concentration detection including electrochemical immunoassay, chemiluminescent immunoassay, fluorescence immunoassay, resonance scattering spectrometry, atomic emission spectrometry, radioimmunoassay, MS and so on...
October 21, 2017: Bioanalysis
https://www.readbyqxmd.com/read/29037859/chorionic-gonadotropin-%C3%AE-modulates-epithelial-mesenchymal-transition-in-colorectal-carcinoma-metastasis
#9
Futoshi Kawamata, Hiroshi Nishihara, Shigenori Homma, Yasutaka Kato, Masumi Tsuda, Yuji Konishi, Lei Wang, Shinji Kohsaka, Cheng Liu, Tadashi Yoshida, Mishie Tanino, Shinya Tanaka, Hideki Kawamura, Toshiya Kamiyama, Akinobu Taketomi
Ectopic production of free β human chorionic gonadotropin (hCGβ) has been associated with aggressive behavior in non-trophoblastic tumors. hCGβ shares common evolutionary sequences with transforming growth factor-β (TGF-β), which represents a major driving force of epithelial-to-mesenchymal transition (EMT). In this study, we examined the biological roles of hCGβ during EMT and its clinical significance in colorectal cancer (CRC) progression. Eighty CRC specimens and 54 preoperative serum samples were analyzed...
October 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28994813/a-primary-human-trophoblast-model-to-study-the-effect-of-inflammation-associated-with-maternal-obesity-on-regulation-of-autophagy-in-the-placenta
#10
Bailey Simon, Matthew Bucher, Alina Maloyan
Maternal obesity is associated with an increased risk of adverse perinatal outcomes that are likely mediated by compromised placental function that can be attributed to, in part, the dysregulation of autophagy. Aberrant changes in the expression of autophagy regulators in the placentas from obese pregnancies may be regulated by inflammatory processes associated with both obesity and pregnancy. Described here is a protocol for sampling of villous tissue and isolation of villous cytotrophoblasts from the term human placenta for primary cell culture...
September 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28962134/placenta-derived-multipotent-cells-have-no-effect-on-the-size-and-number-of-dmh-induced-colon-tumors-in-rats
#11
Hanna Svitina, Vitaliy Kyryk, Inessa Skrypkina, Maria Kuchma, Tetiana Bukreieva, Pavlo Areshkov, Yulia Shablii, Yevheniy Denis, Pavlo Klymenko, Liudmyla Garmanchuk, Liudmyla Ostapchenko, Galina Lobintseva, Volodymyr Shablii
Transplantation of placenta-derived multipotent cells (PDMCs) is a promising approach for cell therapy to treat inflammation-associated colon diseases. However, the effect of PDMCs on colon cancer cells remains unknown. The aim of the present study was to characterize PDMCs obtained from human (hPDMCs) and rat (rPDMCs) placentas and to evaluate their impact on colon cancer progression in rats. PDMCs were obtained from human and rat placentas by tissue explant culturing. Stemness- and trophoblast-related gene expression was studied using reverse transcription-polymerase chain reaction (RT-PCR), and surface markers and intracellular proteins were detected using flow cytometry and immunofluorescence, respectively...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28962108/overexpression-of-trop2-promotes-proliferation-and-invasion-of-ovarian-cancer-cells
#12
Bin Wu, Chunli Yu, Bin Zhou, Tingting Huang, Lei Gao, Tao Liu, Xingsheng Yang
Human trophoblastic cell-surface marker, tumor-associated calcium signal transducer 2 (TROP2), is a newly identified marker that has a vital role in the proliferation and invasion of various tumors. However, its specific function in ovarian cancer has not been researched. The purpose of the present study was to investigate the role of TROP2 in the formation of ovarian cancer and its possible mechanism. TROP2 was knocked down by small interfering (si)RNA in ovarian cancer cell line, A2780. The expression of TROP2 protein following transfection was detected by western blot analysis...
September 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28930821/sonographic-image-of-cervix-epithelioid-trophoblastic-tumor-coexisting-with-mucinous-adenocarcinoma-in-a-postmenopausal-woman-a-case-report
#13
Yi Zhu, Guo-Nan Zhang, Rui-Bo Zhang, Yu Shi, Deng-Feng Wang, Rong He
RATIONALE: Epithelioid trophoblastic tumor (ETT) is a distinctive but rare gestational trophoblastic neoplasia (GTN) composed of chorionic-type intermediate trophoblast cells. Approximately 50% ETT arose from the uterine cervix or lower uterine segment following a previous pregnancy with vaginal bleeding. With its unusual ability to simulate an invasive epithelioid neoplasm, ETT frequently poses a diagnostic challenge, especially involving the uterine cervix. PATIENT CONCERNS: We herein report the case of a 60-year-old female with persistent vaginal bleeding and middle-level elevation of serum human chorionic gonadotropin (hCG)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28924538/molecular-and-immunohistochemical-characteristics-of-complete-hydatidiform-moles
#14
K B Kubelka-Sabit, I Prodanova, D Jasar, G Bozinovski, V Filipovski, S Drakulevski, D Plaseska-Karanfilska
Molar pregnancy is a gestational trophoblastic disease that belongs to the category of precancerous lesions. On the other end of the spectrum are gestational trophoblastic neoplasms such as invasive mole, choriocarcinoma, placental site trophoblastic tumor and epithelioid trophoblastic tumor, which are considered malignant tumors. Based on defined histopathological criteria, molar pregnancy is divided into partial and complete hydatidiform mole. Especially in the case of early complete mole, the diagnosis can be quite challenging and often necessitates additional molecular or immunohistochemical methods...
June 30, 2017: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/28899975/antagonism-of-eg-vegf-receptors-as-targeted-therapy-for-choriocarcinoma-progression-in-vitro-and-in-vivo
#15
Wael Traboulsi, Frédéric Sergent, Houssine Boufettal, Sophie Brouillet, Rima Slim, Pascale Hoffmann, Mohammed Benlahfid, Qun Y Zhou, Gianfranco Balboni, Valentina Onnis, Pierre A Bolze, Aude Salomon, Philippe Sauthier, François Mallet, Touria Aboussaouira, Jean J Feige, Mohamed Benharouga, Nadia Alfaidy
Purpose: Choriocarcinoma (CC) is the most malignant gestational trophoblastic disease that often develops from complete hydatidiform moles (CHM). Neither the mechanism of CC development nor its progression is yet characterized. We recently identified endocrine gland-derived vascular endothelial growth factor (EG-VEGF) as a novel key placental growth factor that controls trophoblast proliferation and invasion. EG-VEGF acts via two receptors, PROKR1 and PROKR2. Here, we demonstrate that EG-VEGF receptors can be targeted for CC therapy...
September 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28877059/choriocarcinoma-in-women-analysis-of-a-case-series-with-genotyping
#16
COMPARATIVE STUDY
Johanna Savage, Emily Adams, Emanuela Veras, Kathleen M Murphy, Brigitte M Ronnett
Choriocarcinoma is an uncommon malignant neoplasm, which can be either gestational or nongestational in origin. Distinction of these subtypes has prognostic and therapeutic implications. Twenty-two tumors were genotyped using polymerase chain reaction amplification of 15 short tandem repeat loci and the amelogenin locus (XY determination). DNA patterns from tumor and maternal tissue, as well as villous tissue from any available prior or concurrent gestation, were compared, to determine gestational versus nongestational nature (containing vs...
December 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28856020/can-ultrasound-be-helpful-in-selecting-optimal-management-methods-for-pregnancies-complicated-by-placental-non-trophpblastic-tumors
#17
REVIEW
Nabil Abdalla, Robert Piórkowski, Paweł Stanirowski, Monika Pazura, Krzysztof Cendrowski, Włodzimierz Sawicki
Placental chorioangioma is the most common subtype of non-trophoblastic placental tumors. Other subtypes are very rare and usually associated with an uneventful course of pregnancy. Most chorioangiomas are small and of no clinical significance. Giant chorioangiomas may be associated with serious fetal and maternal complications. So far, no established ultrasound guidelines are available for the management of placental non-trophoblastic tumors. This may be attributed to the rarity of the disease entity and its different clinical features and complications...
June 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28840513/fertility-sparing-strategies-in-patients-affected-by-placental-site-trophoblastic-tumor
#18
REVIEW
Benito Chiofalo, Vittorio Palmara, Antonio Simone Laganà, Onofrio Triolo, Salvatore Giovanni Vitale, Francesca Conway, Giuseppe Santoro
Placental site trophoblastic tumor (PSTT) is the least common and the most ambiguous gestational trophoblastic tumor. Presentation of PSTT may occur in the course of gestation or from 1 week to 14 years after a normal or an abnormal pregnancy (mole, ectopic pregnancy, abortion). The indicators of aggressive behavior for this tumor are not well established. Due to the rarity of this disease that usually affects women of childbearing potential, we aimed to review the current literature, to identify risk factors and the best conservative therapeutic choices among the cases described...
August 24, 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28795129/placental-site-trophoblastic-tumor-with-sole-metastasis-to-breast-a-case-report
#19
Kimberly Nagamine, Sophia Iwasaki, David Shimizu, Pamela Tauchi-Nishi, Keith Terada
Placental site trophoblastic tumor (PSTT) is a rare form of gestational trophoblastic neoplasia (GTN). It most commonly occurs after a delivery but may arise after any type of pregnancy. PSTT arises after neoplastic transformation of intermediate trophoblastic cells. The most commonly reported symptoms are abnormal bleeding or amenorrhea. Due to the rarity of this disease, evidence on prognostic factors as well as optimal treatment is limited. While treatment for early-stage disease is usually limited to surgery, multimodal treatment with chemotherapy and surgery may be important for metastatic disease...
August 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/28763083/-squamous-cell-carcinoma-in-situ-of-the-cervix-and-placental-site-nodule-case-report
#20
María Constanza Gómez, María Claudia Abaúnza, Elga Johanna Vargas, Inés Acosta
An asymptomatic 24-year-old woman underwent a colposcopy, cervical biopsy, and subsequently, a conization for a cervical squamous cell carcinoma in situ with glandular extension. Simultaneously, an endometrial biopsy was carried out in which, incidentally, a placental site nodule was diagnosed, a rare non-neoplastic lesion originating in the intermediate trophoblast. Given the coexistence of these two entities, it was necessary to make a differential diagnosis between them and also with other pathologies of the trophoblast such as an exaggerated placental site, placental site trophoblastic tumor, and epithelioid trophoblastic tumor...
May 2017: Gaceta Médica de México
keyword
keyword
8882
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"