Essay On Non Small Cell Lung Cancer - 1195 Words

Targeted therapy for non-small cell lung cancer Abstract In the past years, there has been a major paradigm shift in the management of non-small cell lung cancer also known as (NSCLC). NSCLC should now be further sub-classified by histology and driver mutation if one is known or present. Translational research results now allow such mutations to be inhibited by either receptor monoclonal antibodies (mAb) or small molecule tyrosine kinase inhibitors (TKI). Whilst empirical chemotherapy with a platinum-doublet remains the gold standard for advanced NSCLC without a known driver mutation, targeted therapy is pushing the boundary to significantly improve patient outcomes and quality of life. In this review, we will examine the major subtypes†¦show more content†¦It is now acknowledged that NSCLC is not a singular pathogen but is in fact multiple pathologies with unique molecular signatures that we are only beginning to understand and unravel . Widely speaking, the main subtypes are pulmonary adenocarcinoma, squamous cell carcinoma (SCC ) and large cell carcinoma. This distinction alone allows for a more tailored selection of cytotoxic chemotherapy in advanced NSCLC without a controller mutation, as seen with enhanced efficacy with pemetrexed in adenocarcinoma or the toxicity concerns of bevacizumab in patients with squamous histology . Optimal management of NSCLC now requires that tumours be screened for a certain range of predictive and prognostic biomarkers that help to predict sensitivity to targeted therapy and estimate prognosis respectively . For NSCLC, much of the work in the past years has been focussed on mutations of the epidermal growth factor receptor (EGFR) and on the abnormal fusion of the anaplastic lymphoma kinase (ALK) being inhibited successfully with EGFR tyrosine kinase inhibitors (TKI) and crizotinib respectively. Targeted agents are now being rationally designed to inhibit particular mutations leading to a more streamlined clinical trial process. In this review, we will examine the major subtypes of driver mutations that have been identified in NSCLC and relevant targeted therapies available both now, and in the foreseeable future. Signalling pathwayShow MoreRelatedThe Costs of Smoking Essay1250 Words   |  5 Pagesdiscovery linking tobacco smoking with lung cancer has been published. Their conclusion that â€Å"smoking is a factor â€Å" (1), that causes the production of carcinoma of the lung has been confirmed by many further studies done by different scientists throughout the world. These studies have also ascertained connection between smoking and heart dieases, cancer (especially lung cancer), bronchitis, organ failure, indigestion. 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