A selective high affinity MYC-binding compound inhibits MYC:MAX interaction and MYC-dependent tumor cell proliferation.
A selective high affinity MYC-binding compound inhibits MYC:MAX interaction and MYC-dependent tumor cell proliferation.
复制标题
DOI:
10.1038/s41598-018-28107-4
复制
发表时间:
2018-07-03
影响因子:
4.6
通讯作者:
Larsson LG
中科院分区:
文献类型:
--
作者:
Castell A;Yan Q;Fawkner K;Hydbring P;Zhang F;Verschut V;Franco M;Zakaria SM;Bazzar W;Goodwin J;Zinzalla G;Larsson LG
MYC is a key player in tumor development, but unfortunately no specific MYC-targeting drugs are clinically available. MYC is strictly dependent on heterodimerization with MAX for transcription activation. Aiming at targeting this interaction, we identified MYCMI-6 in a cell-based protein interaction screen for small inhibitory molecules. MYCMI-6 exhibits strong selective inhibition of MYC:MAX interaction in cells and in vitro at single-digit micromolar concentrations, as validated by split Gaussia luciferase, in situ proximity ligation, microscale thermophoresis and surface plasmon resonance (SPR) assays. Further, MYCMI-6 blocks MYC-driven transcription and binds selectively to the MYC bHLHZip domain with a KD of 1.6 ± 0.5 μM as demonstrated by SPR. MYCMI-6 inhibits tumor cell growth in a MYC-dependent manner with IC50 concentrations as low as 0.5 μM, while sparing normal cells. The response to MYCMI-6 correlates with MYC expression based on data from 60 human tumor cell lines and is abrogated by MYC depletion. Further, it inhibits MYC:MAX interaction, reduces proliferation and induces massive apoptosis in tumor tissue from a MYC-driven xenograft tumor model without severe side effects. Since MYCMI-6 does not affect MYC expression, it is a unique molecular tool to specifically target MYC:MAX pharmacologically and it has good potential for drug development.
登录
查看更多内容
DOI:
10.1016/j.bbagrm.2014.03.005
发表时间:
2015-05
影响因子:
4.7
作者:
Fletcher, Steven;Prochownik, Edward V.
通讯作者:
Prochownik, Edward V.
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
--
作者:
Kiessling, Anke;Sperl, Bianca;Berg, Thorsten
通讯作者:
Berg, Thorsten
影响因子:
56.9
作者:
Jain, M;Arvanitis, C;Felsher, DW
通讯作者:
Felsher, DW
DOI:
10.1124/jpet.110.170555
发表时间:
2010-12-01
影响因子:
3.5
作者:
Clausen, Dana M.;Guo, Jianxia;Eiseman, Julie L.
通讯作者:
Eiseman, Julie L.