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MYC有所谓不可成药性,还没有专门的靶向药上市。- u& r/ I1 ?1 w2 u( Y
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目前针对myc实际可行的治疗策略是根据患者除myc突变扩增外的其他突变,抑制其他靶点,如mtor、hsp90等,实现合成致死或蛋白降解。自救群里部分myc扩增的乳腺癌患者用了mtor抑制剂,确有疗效。
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针对治疗myc还有一种办法是通过计算机虚拟筛选等办法,在已上市药物里找与myc结合亲和力高的药物。
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9 N8 ?4 n0 [* f. g+ f' a《In Silico, In Vitro, and In Vivo Investigations on Adapalene as Repurposed Third Generation Retinoid against Multiple Myeloma and Leukemia》这篇论文,通过Virtual Screening、Molecular Docking Analyses and Microscale Thermophoresis的办法,从FDA已经批准上市的1578种药物里,筛选出一些与MYC结合亲和力高的药物;其中一些药物与MYC的结合亲和力超过常用的c-MYC 抑制剂试剂 10058-F4 和 10074-G5(LBEs of −4.92 kcal/mol and −6.24 kcal/mol)。
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下面是结合亲和力比较强的一些药物:2 O l# [% Q+ r3 _: s" S) V
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7 b/ O8 B$ `! W' \5 C其他一些研究的结论与这篇论文的结论是相印证的,试举几例如下:
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/ m6 D8 J4 `: f1、《Targeting Oncogenic Super Enhancers in MYC-Dependent AML Using a Small Molecule Activator of NR4A Nuclear Receptors》
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! \3 c- g) k4 [+ h9 |“MYC was identified as the most statistically repressed gene by DHE”- l1 |8 e8 _( T- A3 {* M
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2、《Drug repurposing and prediction of multiple interaction types via graph embedding》# w( w+ J2 t* O1 C6 c. f1 y3 l3 u
4 l. w' @3 x) P" k“Two FDA approved drugs, Dihydroergotamine (CHEMBL1732) and Indinavir Sulfate (CHEMBL1735), which are predicted by the DT2Vec+, might be able to target MYC and decrease its expression. ”( |3 o4 Y" m! ?! v# R! `) f
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" `& j4 p. H: R3、《Involvement of MCL1, c-myc, and cyclin D2 protein degradation in ponatinib-induced cytotoxicity against T315I(+) Ph+leukemia cells》0 ?) `% N) D" G s; \2 ?; W0 O
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“PNT induced apoptosis (increased sub G1 cells, and cleaved caspase3 and PARP), and suppressed protein expression of MCL1, cyclin D2 and c-myc, which were reversed by a proteasome inhibitor, MG132, suggesting enhanced proteasomal degradation by PNT. ”! J9 o3 \! J) h' F9 M1 P$ h
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4、《 Synergistic effect of eribulin and CDK inhibition for the treatment of triple negative breast cancer》
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Additionally, treatment with eribulin resulted in a decrease in c-myc expression and a trend1 [, N4 @9 o$ c3 C
toward an increase in cdki p15。
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7 o- |% q8 P% W% h7 J8 S5、《Atovaquone: an antiprotozoal drug suppresses primary and resistant breast tumor growth by inhibiting HER2/β-catenin signaling》; X7 \4 Q- j7 S& J/ s4 k6 z% i Z
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“We also observed a decrease in c-Myc expression in the tumors of atovaquone-treated mice” |