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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
Wael Traboulsi, Frederic Sergent, Houssine Boufettal, Sophie Brouillet, Rima Slim, Pascale Hoffmann, Mohammed Benlahfid, Qun Yong Zhou, Giafranco Balboni, Valentina Onnis, Pierre-Adrien Bolze, Aude Salomon, Philippe Sauthier, François Mallet, Touria Aboussaouira, Jean-Jacques 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 have recently identified 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. EXPERIMENTAL DESIGN: Three approaches were used, i) a clinical investigation comparing circulating EG-VEGF in Control (n=20) and in distinctive CHM (n=38) and CC (n=9) cohorts, ii) an in vitro study investigating EG-VEGF effects on the CC cell line JEG3, and iii) an in vivo study including the development of a novel CC mouse model, through a direct injection of JEG3-luciferase into the placenta of gravid SCID-mice...
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
#7
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...
September 4, 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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/28759528/18f-fdg-pet-ct-demonstrating-chorioadenoma-destruens-after-evacuation-of-complete-hydatidiform-mole
#12
Punit Sharma
Gestational trophoblastic neoplasias (GTNs) are a group of pregnancy-related neoplasms, which include chorioadenoma destruens (invasive mole), placental site trophoblastic tumor, and choriocarcinoma. Although the role of F-FDG PET/CT is still undefined in GTN, in selected cases, it can have significant impact on patient management. Here, we present the case of a 29-year-old woman with hydatidiform mole suggestive of GTN 3 months after evacuation. F-FDG PET/CT demonstrated chorioadenoma destruens (invasive mole) and ruled out metastasis in this case...
October 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28713970/human-chorionic-gonadotropin%C3%A2-%C3%AE-regulates-epithelial-mesenchymal-transition-and-metastasis-in-human-ovarian-cancer
#13
Na Liu, Shu-Min Peng, Guang-Xi Zhan, Jing Yu, Wei-Min Wu, Hao Gao, Xiao-Feng Li, Xiao-Qing Guo
Human chorionic gonadotropin β (β-hCG) is a well-known and accurate marker for the diagnosis and monitoring of pregnancy, trophoblastic tumors and ovarian germ cell tumors. Recently, β-hCG has been found to be closely related to poor prognosis and metastasis in various other malignant tumors, while its role and mechanism in ovarian cancer is still unclear. In the present study, lentiviral‑mediated transfection and small interfering RNA (siRNA) were used to alter β-hCG expression in the ovarian cancer cell lines ES-2 and SKOV3, respectively...
July 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28704852/pregnancy-and-tumor-outcomes-in-women-with-prolactinoma
#14
Bárbara Araujo, Sandra Belo, Davide Carvalho
Context Management of prolactinomas during pregnancy has always been a challenge. There is a concern about the risk of tumor growth, as well as the effects of the treatment on the developing fetus. Another issue that has been less studied is the outcome of women with prolactinoma after pregnancy and lactation. Objectives To evaluate remission of hyperprolactinaemia after pregnancy and lactation in women with prolactinoma. To describe the safety of dopamine agonists for the fetus and pregnancy outcomes. Methods A retrospective study of 32 pregnancies in women with prolactinoma was conducted in a single-centre...
July 13, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28700434/comparison-of-p63-and-p40-immunohistochemical-stains-to-distinguish-epithelioid-trophoblastic-tumor-from-other-trophoblastic-lesions
#15
Whitney A McCarthy, Cherie Paquette, Fusun Gundogan, W Dwayne Lawrence
No abstract text is available yet for this article.
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28674676/hypothesis-about-transdifferentiation-as-backbone-of-malignancy
#16
Jean Piechowski
BACKGROUND: Cancer is mainly watched through the prism of random mutations and related corruption of signaling pathways. However, it would seem puzzling to explain the tumor organization, pugnacity and steady evolution of the tumorous disease and, moreover, a systematic ascendancy over the healthy tissues, only through stochastic genomic alterations. MALIGNANCY SPECIFIC PROPERTIES: Considering the core characteristics of cancer cells, it appears that two major sets of properties are emerging, corresponding to well-identified physiological phenotypes, i...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28614227/case-report-of-pulmonary-epithelial-trophoblastic-tumor-in-a-young-female-patient
#17
Lijun Jiang, Hongfei Xu, Yuan Lu, Weidong Li, Chengfei Zheng
INTRODUCTION: An epithelial trophoblastic tumor (ETT) is a kind of rare trophoblastic tumor that may have the correlation with a prior gestational event. Especially, the one that appears in the lung is extremely rare. CASE SUMMARY: Here, we present a 24-year-old female patient with the chief complain of vaginal bleeding for more than 1 month, who was found to have a large mass (7.5 × 4.5 cm) in the right lower lobe, and it was finally confirmed as lung ETT by postoperative pathology after a successful radical resection of the pulmonary lobe...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28592902/ggnbp2-is-necessary-for-testis-morphology-and-sperm-development
#18
Anqi Chen, Jixi Li, Lesheng Song, Chaoneng Ji, Marion Böing, Jinzhong Chen, Beate Brand-Saberi
Gametogenetin Binding Protein 2 (GGNBP2) was identified as a tumor suppressor and verified as such by several studies. GGNBP2 has also been reported to be essential for pregnancy maintenance via regulation of trophoblast stem cells. Gametogenetin (GGN) is a testicular germ cell-specific gene expressed in adult testes. As a potential GGN1-interacting protein, the role of GGNBP2 in spermatogenesis has not yet been clarified. We generated heterozygous GGNBP2 knockout mice and bred them by intercrossing. We found that among the offspring, homozygous GGNBP2 knockout (KO) mice were present in severely reduced numbers...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28590345/two-cases-of-epithelioid-trophoblastic-tumors-in-postmenopausal-women
#19
Adriano Rodríguez-Trujillo, María José Martínez-Serrano, Adela Saco, Aureli Torné
OBJECTIVE: Epithelioid trophoblastic tumor is a rare gestational trophoblastic neoplasm usually presenting in women of reproductive age, with a history of a prior gestational event. Its presentation in postmenopausal women is extremely rare. Immunohistochemical staining is a helpful aid to distinguish epithelioid trophoblastic tumor from other gestational trophoblastic neoplasms. Correct diagnosis is crucial for clinical management that can vary according to the type of gestational trophoblastic neoplasm...
June 5, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28587570/effect-of-lactobacillus-rhamnosus-gr-1-supernatant-on-cytokine-and-chemokine-output-from-human-amnion-cells-treated-with-lipoteichoic-acid-and-lipopolysaccharide
#20
Rebecca J E Koscik, Gregor Reid, Sung O Kim, Wei Li, John R G Challis, Alan D Bocking
Preterm birth occurs in 9% to 13% of all human pregnancies and accounts for 80% of all neonatal morbidities and mortalities. Approximately 40% of all preterm births are idiopathic and about half are associated with infection and/or an activated inflammatory process. Further to studies showing anti-inflammatory effects of supernatant from the probiotic Lactobacillus rhamnosus GR-1 (GR-1), we tested its ability to modulate cytokine and chemokine production from amnion cells in response to stimulation by bacterial wall components, lipopolysaccharide (LPS), and lipoteichoic acid (LTA)...
January 1, 2017: Reproductive Sciences
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