发给老马备查: 5 m! ^ t/ O k7 Z& r9 c滴水察海(69304838) 15:23:23 6 e4 l, `3 F9 A9 g7 q老马,我看到培美和S-1都提到TS低表达,而鳞多半不是低表达,是不是S-1不靠谱 6 i X" E/ K7 }- q3 i* k3 Z吉非替尼和S-1连用的依据& Z) j$ B# c3 g& r* D; w7 @
Gefitinib induced down-regulation of thymidylate synthase and E2F-1 in gefitinib-resistant NSCLC cells with MET amplification but not in those harboring the T790M mutation of EGFR. The combination of 5-fluorouracil and gefitinib synergistically inhibited the proliferation of cells with MET amplification, but not that of those with the T790M mutation of EGFR, in vitro. % N4 L) C5 S3 Y5 [, P是不是说因C-MET引起的耐药中,吉非替尼会引导TS低表达 / s1 z( y! @! S' V9 V这样是不是推理出,耐药后,可以用S-1和培美了? 1 i3 l- [* R# n3 Z结论:" X" w3 I9 I) f; Q
如果是T790M突变引起的耐药,则2992有效,如果是C-MET扩增引起的突变,则除了184,还可以特+S1联用,而且可能可以用培美。