Nutlin-3a(Rebemadlin,AbMole,M2894)是一種MDM2拮抗劑,能通過(guò)特異性阻斷MDM2與腫瘤抑制因子p53之間的相互作用,解除MDM2對(duì)p53的泛素化降解,從而穩(wěn)定p53蛋白水平并激活其下游轉(zhuǎn)錄程序。在野生型TP53細(xì)胞中(如結(jié)腸癌HCT116),10 μM Nutlin-3a處理24小時(shí)可顯著抑制增殖、誘導(dǎo)G1期細(xì)胞周期阻滯及凋亡,同時(shí)下調(diào)β-連環(huán)蛋白、并抑制上皮-間質(zhì)轉(zhuǎn)化(EMT)進(jìn)程,以及減少細(xì)胞遷移[1]。
Nutlin-3a(Rebemadlin,AbMole,M2894)還具有非p53依賴(lài)性的細(xì)胞活性,在結(jié)腸癌細(xì)胞(包括p53突變型Caco-2、SW480)中,Nutlin-3a通過(guò)內(nèi)質(zhì)網(wǎng)應(yīng)激激活CHOP(一種細(xì)胞應(yīng)激與凋亡相關(guān)的蛋白),上調(diào)死亡受體DR5,并通過(guò)Caspase-8通路誘導(dǎo)細(xì)胞凋亡[2];Nutlin-3a(Rebemadlin,AbMole,M2894)還在H1299細(xì)胞(一種p53缺失細(xì)胞)中,與干擾素α(IFN-α) 聯(lián)用后通過(guò)抑制cyclin D1/CDK4阻斷細(xì)胞周期[3]。
Nutlin-3a(10 μM)可以抑制骨肉瘤細(xì)胞增殖并促進(jìn)細(xì)胞凋亡[4]。Nutlin-3a(5 μM)還能通過(guò)誘導(dǎo)AMP激酶活化,激活急性白血病細(xì)胞的自噬[5]。在動(dòng)物模型研究中,小鼠(包括SCID小鼠、裸鼠)異種移植實(shí)驗(yàn)表明,Nutlin-3a(Rebemadlin)可在細(xì)胞水平和動(dòng)物實(shí)驗(yàn)(小鼠)中有效抑制NCI-H295R來(lái)源的腎上腺皮質(zhì)癌、ECA-109來(lái)源的食管鱗癌、GBM10來(lái)源的膠質(zhì)母細(xì)胞瘤(顱內(nèi)模型)及黑色素瘤腫瘤的生長(zhǎng)。此外,Nutlin-3a(25 mg/kg)還可以激活小鼠肺部p53基因的表達(dá)并逆轉(zhuǎn)小鼠的肺動(dòng)脈高壓[6]。
參考文獻(xiàn)及鳴謝
[1] Hui, W.; Liu, S.; Zheng, J.; et al. Nutlin-3a as a novel anticancer agent for adrenocortical carcinoma with CTNNB1 mutation.
Cancer medicine 2018,
7 (4), 1440-1449.
[2] Lu, M.; Ren, Y.; Feng, S.; et al. MDM2 inhibitor induces apoptosis in colon cancer cells through activation of the CHOP-DR5 pathway, independent of p53 phenotype.
Frontiers in pharmacology 2025,
16, 1508421.
[3] Shuvalov, O.; Kizenko, A.; Shakirova, A.; et al. Nutlin sensitizes lung carcinoma cells to interferon-alpha treatment in MDM2-dependent but p53-independent manner.
Biochemical and biophysical research communications 2018,
495 (1), 1233-1239.
[4] Wang, B.; Fang, L.; Zhao, H.; et al. MDM2 inhibitor Nutlin-3a suppresses proliferation and promotes apoptosis in osteosarcoma cells.
Acta Biochimica et Biophysica Sinica 2012,
44 (8), 685-691.
[5] Borthakur, G.; Duvvuri, S.; Ruvolo, V.; et al. MDM2 inhibitor, nutlin 3a, induces p53 dependent autophagy in acute leukemia by AMP kinase activation. 2015,
10 (10), e0139254.
[6] Mouraret, N.; Marcos, E.; Abid, S.; et al. Activation of lung p53 by Nutlin-3a prevents and reverses experimental pulmonary hypertension. 2013,
127 (16), 1664-1676.
細(xì)胞系:U-2 OS
方法:Cells were seeded in duplicate in 96-well plates (104 per well), incubated for 6 h, and treated with 10 μM Nutlin-3a for 24, 48, and 72 h, respectively, or exposed to 0–10 M Nutlin-3a for 48 h. Cell viability was determined using the Luminescent cell viability kit.
濃度:10 μM
處理時(shí)間:24, 48, and 72 h
參考文獻(xiàn):Acta Biochim Biophys Sin (Shanghai). 2012 Aug;44(8):685-91.
* 上述方法來(lái)自公開(kāi)文獻(xiàn),僅供相同目的實(shí)驗(yàn)參考。如實(shí)驗(yàn)?zāi)康、材料、方法不同,?qǐng)參考其他文獻(xiàn)。
動(dòng)物實(shí)驗(yàn)參考
動(dòng)物模型:C57Bl/6j mice
配制:0.9% NaCl and 30% DMSO
劑量:6, 12, or 25 mg/Kg/d
給藥處理:Intraperitoneal injection
參考文獻(xiàn):Circulation. 2013 Apr 23;127(16):1664-76.
* 上述方法來(lái)自公開(kāi)文獻(xiàn),僅供相同目的實(shí)驗(yàn)參考。如實(shí)驗(yàn)?zāi)康、材料、方法不同,?qǐng)參考其他文獻(xiàn)。
體內(nèi)實(shí)驗(yàn)的工作液,建議現(xiàn)用現(xiàn)配,當(dāng)天使用;如在配制過(guò)程中出現(xiàn)沉淀、析出現(xiàn)象,可以通過(guò)超聲和(或)加熱的方式助溶。
切勿一次性將產(chǎn)品全部溶解。
建議制定動(dòng)物給藥及實(shí)驗(yàn)方案時(shí),盡量參考已發(fā)表的相關(guān)實(shí)驗(yàn)文獻(xiàn)(溶劑種類(lèi)及配比眾多,簡(jiǎn)單地溶解目的化合物,并不能解決動(dòng)物給藥依從性、體內(nèi)生物利用度、組織分布等相關(guān)問(wèn)題,未必能保證目的化合物在動(dòng)物體內(nèi)充分發(fā)揮生物學(xué)效用)。