Cancers, Vol. 11, Pages 2008: Long Non-Coding RNA MAGI2-AS3 is a New Player with a Tumor Suppressive Role in High Grade Serous Ovarian Carcinoma

Cancers, Vol. 11, Pages 2008: Long Non-Coding RNA MAGI2-AS3 is a New Player with a Tumor Suppressive Role in High Grade Serous Ovarian Carcinoma Cancers doi: 10.3390/cancers11122008 Authors: Priyanka Gokulnath Tiziana de Cristofaro Ichcha Manipur Tina Di Palma Amata Amy Soriano Mario Rosario Guarracino Mariastella Zannini High-Grade Serous Ovarian Carcinoma (HGSC) is the most incidental and lethal subtype of epithelial ovarian cancer (EOC) with a high mortality rate of nearly 65%. Recent findings aimed at understanding the pathogenesis of HGSC have attributed its principal source as the Fallopian Tube (FT). To further comprehend the exact mechanism of carcinogenesis, which is still less known, we performed a transcriptome analysis comparing FT and HGSC. Our study aims at exploring new players involved in the development of HGSC from FT, along with their signaling network, and we chose to focus on non-coding RNAs. Non-coding RNAs (ncRNAs) are increasingly observed to be the major regulators of several cellular processes and could have key functions as biological markers, as well as even a therapeutic approach. The most physiologically relevant and significantly dysregulated non-coding RNAs were identified bioinformatically. After analyzing the trend in HGSC and other cancers, MAGI2-AS3 was observed to be an important player in EOC. We assessed its tumor-suppressive role in EOC by means of various assays. Further, we mapped its signaling pathway using its ro...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research

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Abstract High-grade serous ovarian carcinoma (HGSOC) is the most lethal gynecologic cancer. Emerging evidence suggests that tumor-associated macrophages (TAMs) play an immunosuppressive role in the tumor microenvironment and promote tumor growth, angiogenesis, and metastasis in ovarian cancer. Therefore, targeting TAMs in patients with ovarian cancer is an appealing strategy; however, all trials to date have failed. To improve the efficacy of this approach, we sought to elucidate the underlying mechanisms of the role of TAMs in ovarian cancer. We found that the developmental transcription factor GATA3 was highly e...
Source: Cellular Signalling - Category: Cytology Authors: Tags: Cell Signal Source Type: research
Contributors : Hadar Brand ; Jasmine Jacob ; Keren LevanonSeries Type : Non-coding RNA profiling by arrayOrganism : Homo sapiens ; synthetic constructFallopian tube epithelium is the tissue-of-origin of most high grade serous papillary ovarian carcinoma. This tumor has been exensively investigated and sequenced but expression profiling data of normal fallopian tube epithelial cells is still rare. This project compares the miRNA profiles of high grade serous papillary ovarian tumors (FFPE and fresh frozen) to that of normal unmatched epithelial cells from resected fallopian tubes.
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Non-coding RNA profiling by array Homo sapiens synthetic construct Source Type: research
Abstract Intercellular cell adhesion molecule-1 (ICAM-1), an important adhesion molecule in the immunoglobulin superfamily, is expressed on many cell types. Recent studies have identified ICAM-1 as a potential oncogene that promotes the development of epithelial ovarian cancer (EOC); it was also found to be associated with poor survival. However, the clinical significance of its expression in high-grade serous ovarian carcinoma (HGSOC) is unclear. Thus, this study aimed to investigate the significance of ICAM-1 expression in HGSOC. Data on ICAM1 expression and mutations in serous ovarian carcinoma (SOC) were obtai...
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research
In conclusion, our data suggest that dose-dense weekly paclitaxel (80 mg/m2) combined with low-dose triweekly cisplatin (20 mg/m2) is a potentially effective and highly tolerable front-line treatment in advanced EOC, FTC, and PPSC. Randomized trials comparing the outcome of this regimen to other standard therapies for FIGO stage IIIC–IV EOC, FTC, and PPSC are warranted.
Source: International Journal of Environmental Research and Public Health - Category: Environmental Health Authors: Tags: Article Source Type: research
ampagnola The majority of high-grade serous ovarian cancers originate in the fallopian tubes, however, the corresponding structural changes in the extracellular matrix (ECM) have not been well-characterized. This information could provide new insight into the carcinogenesis and provide the basis for new diagnostic tools. We have previously used the collagen-specific Second Harmonic Generation (SHG) microscopy to probe collagen fiber alterations in high-grade serous ovarian cancer and in other ovarian tumors, and showed they could be uniquely identified by machine learning approaches. Here we couple SHG imaging of serou...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
In conclusion, these malignancies should be considered a single entity during treatment. IMPACT STATEMENT What is already known on this subject? Epithelial ovarian cancer is the second most common gynaecological cancer in women worldwide. There are different histological types including ovarian, tubal and peritoneal carcinomas in which malignant cells form in the tissue covering the ovary or lining the fallopian tube of peritoneum. Recent data have supported the view that these malignancies should be considered a single entity and should be treated the same way. What the results of this study add? In the present study, we ...
Source: Journal of Obstetrics and Gynaecology - Category: OBGYN Tags: J Obstet Gynaecol Source Type: research
CONCLUSION: This study provides strong evidence suggesting that extrauterine HGSC arises from the fimbria of the distal fallopian tube. Furthermore, several potential pathways were identified which could be targeted by novel therapies for HGSC. These findings have significant translational relevance for both primary prevention and clinical management of the disease. PMID: 31493898 [PubMed - as supplied by publisher]
Source: Gynecologic Oncology - Category: Cancer & Oncology Authors: Tags: Gynecol Oncol Source Type: research
ConclusionThe frequency of BRCA mutation in high grade serous carcinoma was 25.7%, none was found in high grade endometrioid carcinoma. High cost, unavailability of genetic testing, limited number of geneticists, may be barriers in limited resource countries. Selected patients especially high grade serous carcinoma should be considered initially.
Source: Gynecologic Oncology Reports - Category: OBGYN Source Type: research
This study protocol was approved by the Institutional Review Board of the hospital. Data Collection Demographic and clinical data were retrieved from medical records in the hospital’s centralized database. These data included the age at diagnosis, International Federation of Obstetrics and Gynecologic (FIGO) stage, tumor histology and grade, type of surgery, and types and cycles of chemotherapy. Disease staging was based on the 2014 FIGO staging system. Optimal debulking surgery was defined as residual tumors with maximal diameters less than 1 cm; the others were defined as suboptimal debulking surgery. Disease rec...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
Conclusions: This study provides evidence in a molecular level that ovarian low-grade serous carcinomas likely originate from the fallopian tube rather than from ovarian surface epithelia. Similar gene expression profiles among fallopian tube, ovarian epithelial inclusions, and serous tumors further support that ovarian low-grade serous carcinomas develop in a stepwise fashion. Such findings may have a significant implication for "ovarian" cancer-prevention strategies. PMID: 30949203 [PubMed]
Source: Journal of Oncology - Category: Cancer & Oncology Tags: J Oncol Source Type: research
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