title: New studies look beyond EGFR mutations for clues to sensitivity to erlotinib.
authors: Rabiya S
authors: RS
authors: Tuma
mesh_terms: D000818:Animals; D002170:Canada; D018797:Cell Cycle Proteins / Q000187:drug effects*; D002986:Clinical Trials as Topic; D050759:Cyclin-Dependent Kinase Inhibitor p21; D019008:Drug Resistance, Neoplasm; D066246:ErbB Receptors / Q000037:antagonists & inhibitors* / Q000235:genetics; D000069347:Erlotinib Hydrochloride; D000077156:Gefitinib; D015337:Multicenter Studies as Topic; D009154:Mutation; D010766:Phosphorylation; D047428:Protein Kinase Inhibitors / Q000494:pharmacology*; D017346:Protein Serine-Threonine Kinases / Q000187:drug effects* / Q000378:metabolism; D011518:Proto-Oncogene Proteins / Q000187:drug effects* / Q000378:metabolism; D051057:Proto-Oncogene Proteins c-akt; D011799:Quinazolines / Q000494:pharmacology*; D012189:Retrospective Studies
chemical_list: D018797:Cell Cycle Proteins; D050759:Cyclin-Dependent Kinase Inhibitor p21; D047428:Protein Kinase Inhibitors; D011518:Proto-Oncogene Proteins; D011799:Quinazolines; D000069347:Erlotinib Hydrochloride; D066246:ErbB Receptors; D017346:Protein Serine-Threonine Kinases; D051057:Proto-Oncogene Proteins c-akt; D000077156:Gefitinib