Novel therapeutic strategies for patients with NSCLC that do not respond to treatment with EGFR inhibitors

Antonio Russo, Francesco Passiglia, Ignacio Gil-Bazo, Marc Peeters, David S. Hong, Edgardo S. Santos, Antonio Russo, Francesco Passiglia, Patrick Pauwels, Noemí Reguart, Christian Rolfo, Bivona, Luis E. Raez, Noemí Reguart, Elisa Giovannetti, Paul Germonpre, Mìquel Taron, Jan P. Van Meerbeeck, Lucio Buffoni, Rafael RosellGiuseppe Bronte

Risultato della ricerca: Articlepeer review

58 Citazioni (Scopus)


Introduction: Treatment with epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs)yields tumour responses in non-small cell lung cancer (NSCLC) patients harbouring activating EGFRmutations. However, even in long-lasting responses, resistance to EGFR TKIs invariably occurs.Areas covered: This review examines resistance mechanisms to EGFR TKI treatment, which mainly arisefrom secondary EGFR mutations. Other resistance-inducing processes include mesenchymal–epithelialtransition factor (MET) amplification, epithelial–mesenchymal transformation, phenotypic change fromNSCLC to small-cell lung carcinoma, and modifications in parallel signalling pathways. Current therapeuticstrategies to overcome these EGFR TKI resistance mechanisms focus on the inhibition or blocking ofmultiple members of the ErbB family. Several molecules which target multiple ErbB receptors are beinginvestigated in NSCLC and other indications including afatinib, an ErbB Family Blocker, as well as dacomitiniband lapatinib. Novel, non-quinazoline, EGFR inhibitors, that also target EGFR activating and resistance(T790M) mutations, are currently under clinical development. Other therapeutic strategies includeinhibition of parallel and downstream pathways, using agents which target heat shock protein (HSP)90 orpoly (ADP-ribose) polymerase in addition to mammalian target of rapamycin (mTOR), monoclonal antibodiesagainst the insulin-like growth factor-1 receptor, and fulvestrant-mediated oestrogen receptorregulation.Conclusion: Improved understanding of mechanisms underlying resistance to EGFR TKIs emphasises theimportance of a genotype-guided approach to therapy. Elucidation of resistance mechanisms is indeedcrucial to target innovative therapeutic approaches and to improve the efficacy of anticancer regimesin NSCLC.
Lingua originaleEnglish
pagine (da-a)990-1004
Numero di pagine15
RivistaCancer Treatment Reviews
Stato di pubblicazionePublished - 2014

All Science Journal Classification (ASJC) codes

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