Elesclomol(STA-4783,AbMole,M2083)是一種線(xiàn)粒體靶向小分子化合物,核心機(jī)制在于作為銅離子載體(Cu²⁺ ionophore),與外源銅離子形成復(fù)合物(Elesclomol-Cu),將銅高效轉(zhuǎn)運(yùn)至線(xiàn)粒體基質(zhì),觸發(fā)銅依賴(lài)性細(xì)胞死亡--銅死亡(Cuproptosis)。上述過(guò)程依賴(lài)于線(xiàn)粒體還原酶FDX1,導(dǎo)致脂酰化蛋白(如DLAT、DLST)異常聚集、線(xiàn)粒體呼吸鏈功能障礙、活性氧(ROS)爆發(fā)性累積及ATP耗竭;同時(shí)可協(xié)同誘導(dǎo)凋亡(表現(xiàn)為Caspase-3/9活化、細(xì)胞色素c釋放)或鐵死亡(如在結(jié)直腸癌模型中通過(guò)ATP7A降解,加劇氧化應(yīng)激,誘導(dǎo)鐵死亡)。在細(xì)胞實(shí)驗(yàn)中,Elesclomol(STA-4783,AbMole,M2083)單用效果有限,常需聯(lián)合銅源(如CuCl₂)[1]。
Elesclomol(STA-4783,AbMole,M2083)在KRAS突變?nèi)朔伟〢549與Calu-1細(xì)胞中可抑制遷移并降低p-Erk水平[2];Elesclomol(STA-4783)還在結(jié)直腸癌HCT116、LoVo細(xì)胞及癌癥干細(xì)胞模型中,聯(lián)合CuCl₂ 處理后顯著抑制克隆形成、降低鐵硫簇蛋白并促進(jìn)DLAT脂;鄯e;在肝癌HepG2/PLC/PRF/5細(xì)胞中,1–10 μM的 Elesclomol-Cu劑量依賴(lài)性抑制增殖,伴隨FDX1上調(diào)與DLAT寡聚化,且可被銅螯合劑Ammonium tetrathiomolybdate(TTM)逆轉(zhuǎn)。動(dòng)物實(shí)驗(yàn)方面,在裸鼠皮下移植A549異種移植模型中,Elesclomol與Genipin 聯(lián)用顯著抑制腫瘤生長(zhǎng)(P=0.008);Elesclomol(CAS No.:488832-69-5)在C57BL/6小鼠膠質(zhì)母細(xì)胞瘤原位模型中,聯(lián)合Temozolomide(TMZ,NSC 362856) 增強(qiáng)抑瘤效果[3];在Menkes病模型(mottled-brindled小鼠)中,Elesclomol遞送銅離子至腦線(xiàn)粒體,提升細(xì)胞色素c氧化酶水平并改善神經(jīng)退行性表型[4]。
參考文獻(xiàn)及鳴謝
[1] Yu, J.; Peng, Y.; Wang, K.; et al. The combination of elesclomol and Cu2+ can inhibit the growth of colon cancer cells by targeting FDX1. 2023.
[2] Albayrak, G.; Korkmaz, F. D.; Tozcu, D.; et al. The outcomes of an impaired powerhouse in KRAS mutant lung adenocarcinoma cells by Elesclomol.
Journal of cellular biochemistry 2019,
120 (6), 10564-10571.
[3] Buccarelli, M.; D'Alessandris, Q. G.; Matarrese, P.; et al. Elesclomol-induced increase of mitochondrial reactive oxygen species impairs glioblastoma stem-like cell survival and tumor growth.
Journal of experimental & clinical cancer research : CR 2021,
40 (1), 228.
[4] Feng, Y.; Wu, J. J.; Sun, Z. L.; et al. Targeted apoptosis of myofibroblasts by elesclomol inhibits hypertrophic scar formation.
EBioMedicine 2020,
54, 102715.
細(xì)胞實(shí)驗(yàn)參考
細(xì)胞系:AML cell
方法:Cells from each group were diluted to 5 × 104 cells/mL and 100 μL of cell suspension was added to a 96-well plate (control group: RPMI-1640 medium containing 40 nM Elesclomol (a copper ion inducer); experimental group: RPMI-1640 medium containing 40 nM Elesclomol and CuCl₂). The plate was pre-incubated in a cell culture incubator for 24 h (37 °C, 5% CO₂). Afterward, 10 μL of CCK-8 solution was added to each well, and the plate was incubated for an additional 2 h. Absorbance at 450 nm was measured using a microplate reader.
濃度:40 nM
處理時(shí)間:24 h.
參考文獻(xiàn):Discov Oncol. 2025 Jun 10;16(1):1044.
* 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:BALB/c nude mice
配制:PBS
劑量:10 mg/kg
給藥處理:intraperitoneally administered
參考文獻(xiàn):Front Oncol. 2025 Jun 24;15:1584811.
* 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)。