scholarly journals Structure and Dynamics of the EGF Receptor as Revealed by Experiments and Simulations and Its Relevance to Non-Small Cell Lung Cancer

Cells ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 316 ◽  
Author(s):  
Marisa L. Martin-Fernandez ◽  
David T. Clarke ◽  
Selene K. Roberts ◽  
Laura C. Zanetti-Domingues ◽  
Francesco L. Gervasio
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Structure Function ◽  
Cell Lung Cancer ◽  
Egf Receptor ◽  
Growth Factor Receptor ◽  
Md Simulations ◽  
Small Cell ◽  
Small Cell Lung ◽  
High Resolution Data

The epidermal growth factor receptor (EGFR) is historically the prototypical receptor tyrosine kinase, being the first cloned and the first where the importance of ligand-induced dimer activation was ascertained. However, many years of structure determination has shown that EGFR is not completely understood. One challenge is that the many structure fragments stored at the PDB only provide a partial view because full-length proteins are flexible entities and dynamics play a key role in their functionality. Another challenge is the shortage of high-resolution data on functionally important higher-order complexes. Still, the interest in the structure/function relationships of EGFR remains unabated because of the crucial role played by oncogenic EGFR mutants in driving non-small cell lung cancer (NSCLC). Despite targeted therapies against EGFR setting a milestone in the treatment of this disease, ubiquitous drug resistance inevitably emerges after one year or so of treatment. The magnitude of the challenge has inspired novel strategies. Among these, the combination of multi-disciplinary experiments and molecular dynamic (MD) simulations have been pivotal in revealing the basic nature of EGFR monomers, dimers and multimers, and the structure-function relationships that underpin the mechanisms by which EGFR dysregulation contributes to the onset of NSCLC and resistance to treatment.

Phase II, Multicenter, Uncontrolled Trial of Single-Agent Sorafenib in Patients With Relapsed or Refractory, Advanced Non–Small-Cell Lung Cancer

2009 ◽  
Vol 27 (26) ◽  
pp. 4274-4280 ◽  
Author(s):  
George R. Blumenschein ◽  
Ulrich Gatzemeier ◽  
Frank Fossella ◽  
David J. Stewart ◽  
Lisa Cupit ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Growth Factor ◽  
Small Cell Lung Cancer ◽  
Phase Ii ◽  
Cell Lung Cancer ◽  
Advanced Nsclc ◽  
Growth Factor Receptor ◽  
Small Cell ◽  
Continuous Treatment ◽  
Small Cell Lung

PurposeSorafenib is an oral multikinase inhibitor that targets the Ras/Raf/MEK/ERK mitogenic signaling pathway and the angiogenic receptor tyrosine kinases, vascular endothelial growth factor receptor 2 and platelet-derived growth factor receptor β. We evaluated the antitumor response and tolerability of sorafenib in patients with relapsed or refractory, advanced non–small-cell lung cancer (NSCLC), most of whom had received prior platinum-based chemotherapy.Patients and MethodsThis was a phase II, single-arm, multicenter study. Patients with relapsed or refractory advanced NSCLC received sorafenib 400 mg orally twice daily until tumor progression or an unacceptable drug-related toxicity occurred. The primary objective was to measure response rate.ResultsOf 54 patients enrolled, 52 received sorafenib. The predominant histologies were adenocarcinoma (54%) and squamous cell carcinoma (31%). No complete or partial responses were observed. Stable disease (SD) was achieved in 30 (59%) of the 51 patients who were evaluable for efficacy. Four patients with SD developed tumor cavitation. Median progression-free survival (PFS) was 2.7 months, and median overall survival was 6.7 months. Patients with SD had a median PFS of 5.5 months. Major grades 3 to 4, treatment-related toxicities included hand-foot skin reaction (10%), hypertension (4%), fatigue (2%), and diarrhea (2%). Nine patients died within a 30-day period after discontinuing sorafenib, and one patient experienced pulmonary hemorrhage that was considered drug related.ConclusionContinuous treatment with sorafenib 400 mg twice daily was associated with disease stabilization in patients with advanced NSCLC. The broad activity of sorafenib and its acceptable toxicity profile suggest that additional investigation of sorafenib as therapy for patients with NSCLC is warranted.

Phase III Study of Erlotinib in Combination With Cisplatin and Gemcitabine in Advanced Non–Small-Cell Lung Cancer: The Tarceva Lung Cancer Investigation Trial

2007 ◽  
Vol 25 (12) ◽  
pp. 1545-1552 ◽  
Author(s):  
Ulrich Gatzemeier ◽  
Anna Pluzanska ◽  
Aleksandra Szczesna ◽  
Eckhard Kaukel ◽  
Jaromir Roubec ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Single Agent ◽  
Growth Factor Receptor ◽  
Progression Free Survival ◽  
Small Cell ◽  
Phase Iii ◽  
Small Cell Lung ◽  
Double Blind

Purpose Erlotinib is a potent inhibitor of the epidermal growth factor receptor tyrosine kinase, with single-agent antitumor activity. Preclinically, erlotinib enhanced the cytotoxicity of chemotherapy. This phase III, randomized, double-blind, placebo-controlled, multicenter trial evaluated the efficacy and safety of erlotinib in combination with cisplatin and gemcitabine as first-line treatment for advanced non–small-cell lung cancer (NSCLC). Patients and Methods Patients received erlotinib (150 mg/d) or placebo, combined with up to six 21-day cycles of chemotherapy (gemcitabine 1,250 mg/m2 on days 1 and 8 and cisplatin 80 mg/m2 on day 1). The primary end point was overall survival (OS). Secondary end points included time to disease progression (TTP), response rate (RR), duration of response, and quality of life (QoL). Results A total of 1,172 patients were enrolled. Baseline demographic and disease characteristics were well balanced. There were no differences in OS (hazard ratio, 1.06; median, 43 v 44.1 weeks for erlotinib and placebo groups, respectively), TTP, RR, or QoL between treatment arms. In a small group of patients who had never smoked, OS and progression-free survival were increased in the erlotinib group; no other subgroups were found more likely to benefit. Erlotinib with chemotherapy was generally well tolerated; incidence of adverse events was similar between arms, except for an increase in rash and diarrhea with erlotinib (generally mild). Conclusion Erlotinib with concurrent cisplatin and gemcitabine showed no survival benefit compared with chemotherapy alone in patients with chemotherapy-naïve advanced NSCLC.

scholarly journals PET imaging of patients with non-small cell lung cancer employing an EGF receptor targeting drug as tracer

2011 ◽  
Vol 105 (12) ◽  
pp. 1850-1855 ◽  
Author(s):  
A A Memon ◽  
B Weber ◽  
M Winterdahl ◽  
S Jakobsen ◽  
P Meldgaard ◽  
...  
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Pet Imaging ◽  
Egf Receptor ◽  
Small Cell ◽  
Small Cell Lung ◽  
Receptor Targeting

scholarly journals PHARMACOTHERAPY OF NON-SMALL CELL LUNG CANCER: A SHORT REVIEW

2018 ◽  
Vol 11 (3) ◽  
pp. 7
Author(s):  
Balaji O
Keyword(s):  
Lung Cancer ◽  
Small Cell Lung Cancer ◽  
Cell Lung Cancer ◽  
Targeted Therapies ◽  
Advanced Disease ◽  
Growth Factor Receptor ◽  
The United States ◽  
Small Cell ◽  
Small Cell Lung ◽  
Anaplastic Lymphoma

 Lung cancer is a global health problem with non-small cell lung cancer (NSCLC) being the most common histopathological variant causing almost 28% deaths in the United States of America. Platinum compounds were the mainstay of treatment, and since past 10 years, various newer targeted therapies have come into play. Epidermal growth factor receptor and anaplastic lymphoma kinase mutations play a major role in the development of advanced disease. Hence, targeted therapies and immunotherapies will remain an integral part in the management of advanced disease. Hence, this review focuses on the newer drugs approved by Food and Drug Administration to treat NSCLC

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