ovarian cancer

The ovarian serous Cystadenocarcinoma shared large number of deaths in gynecologic carcinoma. It has various numbers of molecular events from initiation to progression and at advance stage, surgery is the end product of such molecular signaling. We assess in this study the whole mechanistic view of TNFSF10 network which has the ideal apoptotic causing identity. We used fresh insilico strategy to uncover the secrets and inter-links from its protein-protein interaction complex. We retrieved the TNFSF10 signaling network from STRING database (www.string-db.org). The network contains 25 nodes and 152 edges with clustering presentation. After retrieval, we performed gene enrichment and characterization analysis of network from WebGestalt toolkit (www.webgestalt.com). Finally, we examined the participation of whole network in ovarian cancer progression from cBioPortal, a cancer genomic data portal (www.cbioportal.org). Our results showed that majority of cases have loss of function of death receptors (DR4 and DR5) that are the main unit of initiation of apoptotic signaling. Most of downstream signaling members showed amplification that regulates cell proliferative pathways including NFkB pathway. TNFSF10 cluster has loss of function and in future it gain attention for further research studies to discover its interactome level view for valuable therapy. FAS cluster has large number of members and majority showed amplification rendering them as co-targets for combinational drug designing.

Through the development of new analysis technologies, many issues regarding the approach to tumoral diseases have been elucidated. With analytical assays developed in the last years, various omics technologies have evolved in such a manner that the characteristics of tumor cells and products can be evaluated (assessed) in the bloodstream of cancer patients at different times. Ovarian Cancer (OC) is one of the most difficult to diagnose umors, with low survival rates due to the high heterogeneity of these diseases that are distinct in terms of etiology and molecular characteristics, but which simply share an anatomical appearance. Recent findings have indicated that several types of ovarian cancer classified into different histotypes are in fact derived from non-ovarian issues and share few molecular similarities. Within this context, ovarian cancer screening and diagnosis can be made through the evaluation of circulating tumor cells in peripheral blood using liquid biopsy technologies. Advances in the study of various molecules analyzed by liquid biopsy have shown that elucidation of intratumoural and intertumoural heterogeneity and spatial and temporal tumor evolution could be traced by serial blood tests rather than by histopathological analyses of tissue samples from a primary tumor. Therefore, evaluation of some molecules such as circulating tumor cells (CTC), circulating tumor DNA (ctDNA), circulating cell-free RNA (non-coding and mRNA, extracellular vesicles), tumor-educated platelets or different miRNAs using liquid biopsy could lead to improvement of patient management.

We report a rare case of 62-year-old South Asian women who visited the Molecular Pathology and Genomics Department for hereditary germline cancer genetic testing after being diagnosed with oesophageal cancer, reported as invasive keratinizing squamous cell carcinoma metastasized to the lymph nodes. Her personal history revealed that she was diagnosed with triple-negative breast cancer five years before oesophageal cancer. Germline cancer testing showed pathogenic variants in BRCA1 gene c.68_69delAG, which proved it a hereditary breast and ovarian cancer syndrome. She was started on PARP inhibitors but developed some secondary respiratory failure and succumbed to death. Less than 10 cases have been reported in the literature of the association of germline BRCA1 and Squamous cell Carcinoma – the esophagus. The article focuses on the probable pathogenesis of BRCA1 mutation with non-classic malignancies and the response of Poly adenosine diphosphate ribose polymerase inhibitors (PARP) inhibitors in such a scenario. We report an unusual manifestation of the BRCA1 gene with second primary oesophageal squamous cell cancer occurring five years later to triple-negative breast cancer.