{"title":"Total Infragastric Omentectomy Including the Vascular Perigastric Arcade in Patients With Advanced Serous Ovarian Tumors.","authors":"Gloria Cordeiro Vidal, Sabrina Croce, Frédéric Guyon, Guillaume Babin, Denis Querleu","doi":"10.1097/IGC.0000000000000832","DOIUrl":"10.1097/IGC.0000000000000832","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to document the need of including the perigastric area when performing omentectomy in patients with stage III to IV serous epithelial ovarian tumors.</p><p><strong>Patients and methods: </strong>Patients undergoing omentectomy in the setting of surgery for advanced epithelial serous ovarian cancer between February and September 2015 were included. Patients with macroscopic involvement of the perigastric area, nonepithelial serous tumors, and recurrences of ovarian cancer were excluded. The perigastric area was isolated and comprehensively processed for pathological examination.</p><p><strong>Results: </strong>Twenty-four patients were included. Six patients underwent primary debulking surgery, and 18 patients underwent an interval debulking surgery. The mean number of pathologic blocks in the perigastric area was 24 (range, 8-41). Microscopic involvement of the perigastric omentum area was found in 62.5% of the cases. One patient had a low-grade serous carcinoma, with microscopic involvement of the perigastric area. Among the 23 patients with a high-grade serous carcinoma, 10 (83%) of 12 patients with a gross involvement of the rest of the omentum had a microscopic involvement of the perigastric area. The presence of microscopic disease in the perigastric arcade was found in 4 (36.3%) of 11 patients with a macroscopically normal omentum.</p><p><strong>Conclusions: </strong>In this study, evidence is given that total omentectomy including the perigastric area is a necessary component of complete cytoreductive surgery in advanced ovarian cancer, whatever the macroscopic appearance of the omentum.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"26 8 1","pages":"252-257"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82926187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Letter From the Editor - February 2017.","authors":"Uziel Beller","doi":"10.1097/IGC.0000000000000941","DOIUrl":"10.1097/IGC.0000000000000941","url":null,"abstract":"","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"64 1","pages":"195"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85015273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A New MicroRNA Expression Signature for Cervical Cancer.","authors":"Ping Sun, Yong Shen, Jiao-Mei Gong, Li-Li Zhou, Jia-He Sheng, Fu-Jiao Duan","doi":"10.1097/IGC.0000000000000863","DOIUrl":"10.1097/IGC.0000000000000863","url":null,"abstract":"<p><strong>Background: </strong>Cervical cancer is the second most common cancer among women worldwide. The potential of microRNAs as novel biomarkers in cervical cancer is growing.</p><p><strong>Objectives: </strong>In this study, we investigated the functions and targets of miR-466 in cervical cancer tissues.</p><p><strong>Methods: </strong>Fresh cervical tissues were obtained from 157 patients with cervical cancer, cervical intraepithelial neoplasia (CIN), and healthy controls, and the tissues were immediately frozen in liquid nitrogen until use. The RNA was extracted and quantitative real-time polymerase chain reaction (PCR) was performed.</p><p><strong>Results: </strong>A total of 157 participants were summarized, including 56 patients with cervical cancer, 60 patients with CIN, and 49 healthy controls. The expression levels of miR-466 in cervical cancers (0.68) were higher than that in healthy controls (0.082) (P < 0.01). The average fold changes of miR-466 in the patients with CIN group and people group were 0.28 and 0.082, respectively (P < 0.01). It was a statistically significant difference in patients with lymph node involvement (P = 0.022). However, the expression of miR-466 was not correlated with International Federation of Gynecology and Obstetrics stages, tumor size, or vascular invasion (P = 0.506, P = 0.667, and P = 0.108, respectively).</p><p><strong>Conclusions: </strong>Our results indicate that the aberrant expression of miR-466 is closely associated with the occurrence and development of cervical cancer.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"17 1","pages":"339-343"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89479423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jie Yang, Jiaxin Yang, Mei Yu, Zhen Yuan, Dongyan Cao, Shen Keng
{"title":"Clinical Study on Female Genital Tract Rhabdomyosarcoma in Childhood: Changes During 20 Years in One Center.","authors":"Jie Yang, Jiaxin Yang, Mei Yu, Zhen Yuan, Dongyan Cao, Shen Keng","doi":"10.1097/IGC.0000000000000872","DOIUrl":"10.1097/IGC.0000000000000872","url":null,"abstract":"<p><strong>Objective: </strong>Rhabdomyosarcoma (RMS) is a rare tumor in girls. We intend to analyze the clinical feature, therapeutic effect, and prognosis of pediatric and adolescent RMS of the female genitourinary tract.</p><p><strong>Methods: </strong>Pediatric or adolescent patients with female genital tract RMS in 1 tertiary hospital from 1995 to 2015 were retrospectively reviewed. The medical records were collected, including general information, tumor primary site, stage, histology, treatments, adverse effects, and survival outcomes.</p><p><strong>Results: </strong>There were 8 girls with genital tract tumor in 403 patients with RMS during 20 years in 1 hospital: 5 originated in the vagina, 2 in the cervix, and 1 in the pelvis. Except for the patient with pelvic RMS who was diagnosed after acute abdominal pain, all the other patients presented with polypoid masses protruding from the vagina accompanied by mucosanguineous discharge. Mean age of patients at diagnosis was 5.4 years (8 months-14 years). Patients were categorized by using clinical group and TNM classification of malignant tumours staging system, 7 with stage I and 1 with stage II; none of them were classified to a higher stage. Histologically, all RMS were embryonal tumors with 3 botryoid variants. Patients were treated with surgery and adjuvant chemotherapy during which 6 patients developed fourth degree myelosuppression. All patients achieved complete remission. Two patients with vaginal RMS and the patient with pelvic RMS experienced tumor relapse and 2 patients died.</p><p><strong>Conclusions: </strong>Rhabdomyosarcoma is a rare malignant sarcoma with a higher incidence in children and adolescents. Tumor sites are strongly associated with age at diagnosis. After combined therapy with local excision and chemotherapy, most patients can achieve a good prognosis. The prognosis is highly correlated with tumor site and histologic type.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"10 1","pages":"311-314"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75864400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bradley R Corr, Aakriti Carrubba, Jeanelle Sheeder, Georgina Cheng, Saketh R Guntupalli
{"title":"Histopathology Discrepancy of Preoperative Endometrial Sampling and Final Specimen: How Does This Influence Selective Lymph Node Dissection?","authors":"Bradley R Corr, Aakriti Carrubba, Jeanelle Sheeder, Georgina Cheng, Saketh R Guntupalli","doi":"10.1097/IGC.0000000000000866","DOIUrl":"10.1097/IGC.0000000000000866","url":null,"abstract":"<p><strong>Objective: </strong>Preoperative histology is a major component in the perioperative selective lymph node (LN) dissection decision process. Discrepancy between preoperative endometrial sampling and final specimen histopathology is generally accepted. The goals of this project are to determine if discrepancy of histopathology is associated with alteration of adjuvant treatment or outcome.</p><p><strong>Materials and methods: </strong>We performed a retrospective cross-sectional analysis of all patients undergoing surgery for endometrial cancer at a single institution from 2010 to 2014. All patients had preoperative endometrial sampling. Histopathology discrepancy was evaluated for potential in variation of perioperative LN dissection. Criteria for not performing LN dissection was defined as preoperative endometrioid histology, grade 1 or 2 lesion, myometrial invasion of 50% or less, and primary tumor diameter 2 cm or less.</p><p><strong>Results: </strong>A total of 352 patients were identified; 44 were excluded because of no preoperative pathology or no residual disease on final pathology. Discrepancy of histopathology was noted in 64/308 (20.8%; 95% confidence interval [CI], 16.2%-25.3%) patients. Preoperative endometrioid histology was noted in 272 patients, and 17/272 (6.3%; 95% CI, 3.4%-9.1%) had preoperative sampling reviewed as a grade 1 or 2 endometrioid lesion and final specimen was upgraded to grade 3. Downstaging occurred in 3/272 (1.1%; 95% CI, 0%-2.3%) patients with preoperative grade 3 lesion and final specimen demonstrated grade 1 or 2 disease. All 3 patients' primary tumor diameter was greater than 2 cm and therefore received LN dissection. Histopathological discrepancy that would alter perioperative LN dissection decision based on the aforementioned criteria occurred in 2/272 (0.7%; 95% CI, 0%-1.8%).</p><p><strong>Conclusions: </strong>Despite a 20% discrepancy of preoperative and postoperative histopathology, discrepancy that would alter a perioperative decision for LN dissection occurs in only 0.7% of cases in this retrospective single-institutional experience. Myometrial invasion and tumor size may be more influential than histology in LN selection criteria.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"47 1","pages":"297-301"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76290211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marloes Derks, Luc R C W van Lonkhuijzen, Rinske M Bakker, Anne M Stiggelbout, Cornelis D de Kroon, Henrike Westerveld, Jan Paul W R Roovers, Gemma G Kenter, Moniek M Ter Kuile
{"title":"Long-Term Morbidity and Quality of Life in Cervical Cancer Survivors: A Multicenter Comparison Between Surgery and Radiotherapy as Primary Treatment.","authors":"Marloes Derks, Luc R C W van Lonkhuijzen, Rinske M Bakker, Anne M Stiggelbout, Cornelis D de Kroon, Henrike Westerveld, Jan Paul W R Roovers, Gemma G Kenter, Moniek M Ter Kuile","doi":"10.1097/IGC.0000000000000880","DOIUrl":"10.1097/IGC.0000000000000880","url":null,"abstract":"<p><strong>Objective: </strong>To compare long-term morbidity and quality of life after primary surgery or primary radiotherapy for stage IB/II cervical cancer.</p><p><strong>Methods: </strong>A cross-sectional study was performed. Patients treated for stage IB/II cervical cancer between 2000 and 2010 were approached to participate. Primary treatment consisted of radical hysterectomy with pelvic lymphadenectomy (RHL), for selected cases followed by adjuvant (chemo-)radiotherapy, or primary (chemo)radiotherapy (PRT). European Organization for Research and Treatment of Cancer-C30 and European Organization for Research and Treatment of Cancer-CX24 questionnaires were administered. A multivariable analysis was performed to identify factors associated with morbidity/quality of life. In a subgroup analysis, we compared patients with RHL + adjuvant radiotherapy with those after PRT.</p><p><strong>Results: </strong>Three hundred twenty-three cervical cancer survivors were included (263 RHL/60 PRT). In the PRT group, International Federation of Gynecology and Obstetrics stage was higher and women were older. In the RHL group, more women had a partner. Women treated with PRT reported lower physical (β, -6.01) and social functioning (β, -15.2), more financial problems (β, 10.9), diarrhea (β, 9.98), symptom experience (β, 6.13), sexual worry (β, 11.3), and worse sexual/vaginal functioning (β, 11.4). Women treated with RHL reported significantly more lymphedema (β, -16.1). No differences in global health were found. In the subgroup analysis, women after PRT (n = 60) reported poorer social functioning, less sexual enjoyment, and higher symptoms experience than women after RHL and adjuvant radiotherapy (n = 60). The latter reported more lymphedema.</p><p><strong>Conclusions: </strong>Although global health scores are not significantly different, women after PRT report more physical, social, and sexual symptoms. These results can be well used by physicians to inform their patients about treatment-related morbidity.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"56 1","pages":"350-356"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74188228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Concetta Laliscia, Maria Grazia Fabrini, Durim Delishaj, Riccardo Morganti, Carlo Greco, Martina Cantarella, Roberta Tana, Fabiola Paiar, Angiolo Gadducci
{"title":"Clinical Outcomes of Stereotactic Body Radiotherapy in Oligometastatic Gynecological Cancer.","authors":"Concetta Laliscia, Maria Grazia Fabrini, Durim Delishaj, Riccardo Morganti, Carlo Greco, Martina Cantarella, Roberta Tana, Fabiola Paiar, Angiolo Gadducci","doi":"10.1097/IGC.0000000000000885","DOIUrl":"10.1097/IGC.0000000000000885","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was to assess the role of stereotactic body radiotherapy (SBRT) in the treatment of distantly recurrent, oligometastatic gynecological cancer.</p><p><strong>Methods: </strong>The hospital records of 45 patients with F-fluorodeoxyglucose (F-FDG) positron emission tomography positive, distantly recurrent, oligometastatic gynecological cancer were reviewed. All these patients had a number of target lesions less than 5, with largest diameter less than 6 cm. The treatment was delivered with a TrueBeam LINAC and RapidArc technique, using 10 or 6 MV FFF beams. A total of 70 lesions were treated, and lymph nodes represented the most common site of metastases, followed by lung, liver, and soft tissues. Twenty lesions were treated with one single fraction of 24 Gy and 5 lesions received 27 Gy delivered in 3 fractions, depending on the ability to fulfill adequate target coverage and safe dose/volume constraints for the organ at risk with either regimen.</p><p><strong>Results: </strong>Positron emission tomography scan 3 months after SBRT showed a complete response (CR) in 45 lesions (64.3%), a partial response in 14 (20.0%), a stable disease in 5 (7.1%), and a progressive disease in 6 (8.6%). No lesions in CR after SBRT subsequently progressed. Overall acute toxicity occurred in 13 (28.9%) patients. The most common grade 1 to 2 adverse event was pain (n = 9, 20.0%), followed by nausea and vomiting (n = 5, 11.1%). No grade 3 to 4 acute toxicities occurred, and no late toxicities were observed. Patients who failed to achieve a CR had a 2.37-fold higher risk of progression and a 3.60-fold higher risk of death compared with complete responders (P = 0.04 and P = 0.03, respectively).</p><p><strong>Conclusions: </strong>Stereotactic body radiotherapy offers an effective and safe approach for selected cases of oligometastatic gynecological cancer.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"75 1","pages":"396-402"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83805748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Holger Bronger, Philipp Hederich, Alexander Hapfelmeier, Stephan Metz, Peter B Noël, Marion Kiechle, Barbara Schmalfeldt
{"title":"Sarcopenia in Advanced Serous Ovarian Cancer.","authors":"Holger Bronger, Philipp Hederich, Alexander Hapfelmeier, Stephan Metz, Peter B Noël, Marion Kiechle, Barbara Schmalfeldt","doi":"10.1097/IGC.0000000000000867","DOIUrl":"10.1097/IGC.0000000000000867","url":null,"abstract":"<p><strong>Objective: </strong>Cancer cachexia is a paraneoplastic syndrome comprising involuntary weight loss and muscle depletion (sarcopenia). Although weight loss has been associated with poor clinical outcome, there is only limited information on the prevalence and prognostic impact of sarcopenia in ovarian cancer so far.</p><p><strong>Methods: </strong>Total skeletal muscle mass was determined by computed tomography image analysis of the third lumbar skeletal muscle cross-sectional area in 128 patients with advanced serous ovarian cancer. Longitudinal change of muscle mass was studied in 209 consecutive computed tomography scans from 43 patients. Association with survival was determined using Cox proportional hazards model.</p><p><strong>Results: </strong>The prevalence of sarcopenia at first diagnosis was 11% (12/105; 95% confidence interval [CI], 6%-20%). Sarcopenic patients had a significantly reduced progression-free (hazard ratio, 2.64; 95% CI, 1.24-5.64; P = 0.012) and overall survival (hazard ratio, 3.17; 95% CI, 1.29-7.80; P = 0.012). On multivariable analysis, these prognostic effects remained significant after adjustment for age, International Federation of Gynecology and Obstetrics stage, and postsurgical residual disease. Longitudinal analyses identified both patients with loss and gain of muscle mass. However, change in muscle mass over time was not associated with survival.</p><p><strong>Conclusions: </strong>Baseline sarcopenia is a prognostic factor in advanced serous ovarian cancer. Identification of sarcopenic patients and early enrollment in physical or nutritional education programs might thus be a feasible way to improve outcome and should be further evaluated in prospective clinical trials.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"28 1","pages":"223-232"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73531853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Weekly Versus Triweekly Cisplatin-Based Chemotherapy Concurrent With Radiotherapy in the Treatment of Cervical Cancer: A Meta-Analysis.","authors":"Xingxing Chen, Haizhou Zou, Huifang Li, Ruifang Lin, Meng Su, Wenyi Zhang, Yongqiang Zhou, Ping Zhang, Meng Hou, Xia Deng, Changlin Zou","doi":"10.1097/IGC.0000000000000883","DOIUrl":"10.1097/IGC.0000000000000883","url":null,"abstract":"<p><strong>Background: </strong>The aim of this study was to evaluate toxicity, compliance, recurrence and the survival of weekly and triweekly cisplatin-based concomitant chemoradiation in treatment of cervical cancer.</p><p><strong>Materials and methods: </strong>The databases were searched from 1995 until 2015 to identify eligible studies on weekly versus triweekly cisplatin chemoradiotherapy. The data were analyzed by RevMan 5.3 software.</p><p><strong>Results: </strong>A total of 5 randomized controlled trials were included in this review. Weekly cisplatin regimen significantly reduced the incidence of Hematologic toxicity. However, there was no significantly different between the 2 arms in compliance, recurrence and the survival rate (all P >0.05).</p><p><strong>Conclusions: </strong>Weekly cisplatin regimen had the similar therapeutic effect as the triweekly cisplatin regimen but with less hematologic toxicity. Therefore, we recommend the weekly cisplatin 30 to 40 mg/m chemoradiotherapy as the strong candidate for the optimal cisplatin dose and dosing schedule in the treatment of locally advanced cervical cancer.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"11 1","pages":"344-349"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86481484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"miR-21 Is Overexpressed in Hydatidiform Mole Tissues and Promotes Proliferation, Migration, and Invasion in Choriocarcinoma Cells.","authors":"Ya-Xin Wang, Jiu-Ru Zhao, Yue-Ying Xu, Wei-Bin Wu, Hui-Juan Zhang","doi":"10.1097/IGC.0000000000000861","DOIUrl":"10.1097/IGC.0000000000000861","url":null,"abstract":"<p><strong>Objective: </strong>The aims of this study were to make clear whether miR-21 was dysregulated in hydatidiform mole (HM) tissues and choriocarcinoma (CCA) cells, to elucidate whether aberrant miR-21 expression would affect the function of CCA cells, and to find out whether there was a relationship between miR-21 and AKT, PDCD4, and PTEN in CCA cells.</p><p><strong>Methods: </strong>Fresh and formalin-fixed, paraffin-embedded trophoblastic tissues (normal first trimester placentas and HMs) were retrieved from the biobank in the International Peace Maternity and Child Health Hospital, Shanghai Jiao Tong University. Choriocarcinoma JAR and JEG-3 cells were cultured. Expression of miR-21 in trophoblast cells and tissues was examined by quantitative real-time polymerase chain reaction. Location and distribution of miR-21 in trophoblast tissues were determinated by in situ hybridization and fluorescent in situ hybridization. The effect of miR-21 on JAR and JEG-3 cells was tested by miR-21 mimics and inhibitor transfection, followed by cell viability assay, flow cytometric analysis, and Transwell analysis. Interaction between miR-21 and its target genes in CCA cells was verified by quantitative real-time polymerase chain reaction, Western blot, and luciferase report system.</p><p><strong>Results: </strong>We originally found miR-21 was markedly upregulated in HM tissues compared with normal first trimester placentas. The expression of miR-21 was exclusively confined in trophoblastic layers. Furthermore, we discovered miR-21 was significantly increased in JAR and JEG-3 cells compared with normal primary human trophoblastic cells. Moreover, we demonstrated miR-21 could promote proliferation, migration, and invasion of CCA cells. We furthermore proved miR-21 negatively regulated PDCD4 and PTEN in CCA cells and targeted to PDCD4 3'UTR directly. In addition, we confirmed that miR-21 could activate Akt pathway by phosphorylating Akt at Ser 473.</p><p><strong>Conclusions: </strong>Our results suggested miR-21 was responsible for aggressive phenotype of gestational trophoblastic disease and had the potential diagnostic and therapeutic values for gestational trophoblastic neoplasm.</p>","PeriodicalId":13983,"journal":{"name":"International Journal of Gynecologic Cancer","volume":"2008 1","pages":"364-374"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86242280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}