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SCCAg mRNA expression predicts early relapse in histopathologically negative lymphnodes of oral squamous cell carcinoma patients.

Local recurrence and lymphnode (LN) metastasis are the most significant risk factors for morbidity and mortality for oral squamous cell carcinoma (OSCC) patients. In the current study, we aimed to evaluate the clinical significance of SCCAg mRNA expression in OSCC patients having histopathologically negative lymphnodes (HNLNs) and pretherapeutic peripheral blood samples (PPBs.). SCCAg mRNA was evaluated in total N=123 samples using nested RT-PCR technique. SPSS statistical software was used and p value <0.05 was considered as significant. The analysis revealed that in HNLNs, the mean ? SE for SCCAg mRNA expression was 1794.98 ? 106.67 with a median of 1488.0 while in PPBS it was 2308.27 ? 196.10 with a median of 1985.0. The frequency of SCCAg mRNA in HNLNs and in PPBs was 27% (15/55) and 29% (8/28), respectively. SCCAg mRNA expression in HNLNs and in PPBs showed a significant positive correlation with tumor size and lymphatic permeation. Multivariate survival analysis for RFS demonstrated that only SCCAg mRNA expression in HNLNs (p=0.001) and PPBs (p=0.001) were the most significant independent prognostic factors. However, for OS, multivariate analysis showed that SCCAg mRNA of HNLNs emerged at step 2 after tumor size and for PPBs it remained as single most significant independent prognostic marker. Thus, SCCAg mRNA may represent a useful tool for more accurate staging, which could improve disease management and help to obtain maximal therapeutic benefit from adjuvant therapies. Hence, SCCAg mRNA transcript could serve as a useful independent predictor of disease relapse, suggesting an increased risk of silent metastasis.

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Developments in the area of bladder cancer genomics and its importance in the treatment selection

With the advent of next-generation sequencing technologies, tremendous progress has been made in the understanding of the genomic landscape of several tumor types. Clinicopathologically bladder carcinoma is classified into non-muscle invasive bladder cancer and muscle invasive bladder cancer. Patients are often diagnosed with bladder carcinoma at an advanced stage, owing to a lack of early clinical symptoms and effective biomarkers for early detection. Failure of chemoradiotherapy at an advanced stage usually results in a poor outcome. Currently, there are limited targeted therapies available for bladder carcinoma. Thus, there is an immediate need to identify alternative strategies and novel therapeutic targets for the treatment of bladder carcinoma. The genomic underpinnings of bladder carcinoma may lead to the better understanding of this disease and improved targeted therapy. A large number of genomic alterations including somatic mutations, copy number alterations and fusion genes were identified to be involved in the pathogenesis of bladder carcinoma. A high mutational burden was observed in bladder carcinoma as compared to other tumors. Recurrent somatic mutations in genes such as TP53, KMT2D, RB1, FGFR3, KDM6A, STAG2 and PIK3CA were identified. Multiple signaling pathways such as the cell cycle pathway, DNA repair pathway, chromatin remodeling and histone modifications were found to be altered. Most likely, targeting mutated genes of these altered pathways could provide opportunities for personalization of bladder carcinoma therapy. This review discusses the molecular alterations, altered identified genes and the molecular pathways involved in bladder carcinoma.

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Efficacy and safety of pemetrexed and cisplatin chemotherapy as first line in advanced stage of lung adenocarcinoma.

Background: Pemetrexed is a newer antifolate drug that has multiple intracellular targets. Clinical trials of Pemetrexed in advanced nonsmall cell lung carcinoma (NSCLC) setting have demonstrated beneficial outcomes. This study evaluated the efficacy and safety of Pemetrexed and Cisplatin combination as first line in advanced stage NSCLC adenocarcinoma patients. Methods: This was a prospective study conducted on previously untreated 50 patients with NSCLC (adenocarcinoma) of stage III B and IV disease. Patients received Pemetrexed 500 mg/m2 and Cisplatin 75 mg/m2 on day 1 of every 21-day cycle for a total of 6 cycles. Tumor response was calculated after 3 cycles and 6 cycles as per RECIST criteria version 1.1. Toxicity and adverse events (AEs) were assessed as per Common Terminology Criteria for Adverse Events (CTCAE) version 3. Results: The tumor response rate after 6 cycles of chemotherapy was as follows: 12% (6) patients had complete response, 48% (24) had a partial response, and 22% (11) stable disease. The overall response rate was 60% and the clinical benefit rate was 82%. Out of total patients, hematological toxicity in the form grade 3/4 granulocytopenia was seen in 20 (40%) patients, followed grade 3/4 leukopenia 12 (24%), grade 3/4 anaemia in 5 (10%) and grade 3/4 thrombocytopenia in 5(10%). Whereas nonhematological toxicity was comparatively less in the form of grade 3 vomiting in 2 (4%) patients. Over all this combination was well tolerated. Conclusion: Pemetrexed and Cisplatin chemotherapy combination was found to be efficacious and was well tolerated in advanced NSCLC adenocarcinoma patients.

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