Title : Structural basis of resistance of mutant RET protein-tyrosine kinase to its inhibitors nintedanib and vandetanib.

Pub. Date : 2019 Jul 5

PMID : 31118272






14 Functional Relationships(s)
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1 Structural basis of resistance of mutant RET protein-tyrosine kinase to its inhibitors nintedanib and vandetanib. nintedanib ret proto-oncogene Homo sapiens
2 Nintedanib is a RET TKI that inhibits the vandetanib-resistant RET(G810A) mutant. nintedanib ret proto-oncogene Homo sapiens
3 Nintedanib is a RET TKI that inhibits the vandetanib-resistant RET(G810A) mutant. nintedanib ret proto-oncogene Homo sapiens
4 Here, we determined the X-ray co-crystal structure of RET kinase domain-nintedanib complex to 1.87 A resolution and a RET(G810A) kinase domain crystal structure to 1.99 A resolution. nintedanib ret proto-oncogene Homo sapiens
5 Drug-sensitivity profiling of RET(L881V) revealed that it remains sensitive to nintedanib. nintedanib ret proto-oncogene Homo sapiens
6 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
7 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
8 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
9 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
10 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
11 The RET-nintedanib co-crystal structure disclosed that Leu-730 in RET engages in hydrophobic interactions with the piperazine, anilino, and phenyl groups of nintedanib, providing a structural basis for explaining that the p.L730V mutation identified in nine independently isolated cell lines resistant to nintedanib. nintedanib ret proto-oncogene Homo sapiens
12 Comparisons of RET-nintedanib, RET(G810A), and RET-vandetanib crystal structures suggested that the solvent-front Ala-810 makes hydrophobic contacts with a methyl group and aniline in nintedanib and blocks water access to two oxygen atoms of vandetanib, resulting in an energetic penalty for burying polar groups. nintedanib ret proto-oncogene Homo sapiens
13 Of note, even though the p.L881V mutation did not affect sensitivity to nintedanib, RET(L881V) was resistant to nintedanib analogs lacking a phenyl group. nintedanib ret proto-oncogene Homo sapiens
14 These results provide structural insights into resistance of RET mutants against the TKIs nintedanib and vandetanib. nintedanib ret proto-oncogene Homo sapiens