Changes in intracellular activation-related gene expression and induction of Akt contribute to acquired resistance toward nelarabine in CCRF-CEM cell line

Changes in intracellular activation-related gene expression and induction of Akt contribute to acquired resistance toward nelarabine in CCRF-CEM cell line
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细胞内激活相关基因表达和 Akt 诱导的变化导致 CCRF-CEM 细胞系对奈拉滨获得性耐药

DOI:
10.1080/10428194.2021.1992617
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发表时间:
2022
期刊:
Leuk Lymphoma.
影响因子:
--
通讯作者:
Kawano Y.
Kawano Y.
中科院分区:
--
文献类型:
--
作者:
Rindiarti A;Okamoto Y;Nakagawa S;Hirose J;Kodama Y;Nishikawa T;Kawano Y.

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耐药性是奈拉滨治疗中的一个主要问题,其解决需要阐明其潜在机制。我们建立了人类 T 细胞淋巴细胞白血病细胞系 CCRF-CEM 的两个奈拉滨耐药亚克隆。耐药亚克隆表现出与细胞内激活和抑制细胞凋亡相关的几个基因的表达变化。在两个亚克隆中均观察到奈拉滨处理后 Akt 蛋白被激活。奈拉滨和 PI3K/Akt 抑制剂联合治疗可抑制细胞生长。使用ara-C 观察到交叉耐药性,而使用长春新碱、柔红霉素或依托泊苷治疗则未观察到交叉耐药性。因此,细胞激活相关基因表达的变化、细胞凋亡的抑制和Akt的诱导可能与CCRF-CEM细胞模型中奈拉滨耐药性的发展有关。使用不同类别的化疗药物以及与 PI3K/Akt 通路抑制剂的联合治疗可用于克服奈拉滨耐药性。
Drug resistance is a major problem in treatment with nelarabine, and its resolution requires elucidation of the underlying mechanisms. We established two nelarabine-resistant subclones of the human T-cell lymphoblastic leukemia cell line CCRF-CEM. The resistant subclones showed changes in the expression of several genes related to nelarabine intracellular activation and inhibition of apoptosis. Activation of the Akt protein upon nelarabine treatment was observed in both subclones. The combination treatment with nelarabine and PI3K/Akt inhibitors was shown to inhibit cell growth. Cross-resistance was observed with ara-C and not with vincristine, daunorubicin, or etoposide treatment. Thus, changes in the expression of cellular activation-related genes, inhibition of apoptosis, and induction of Akt may be involved in the development of nelarabine resistance in the CCRF-CEM cell model. The use of different classes of chemotherapeutic agents and combination therapy with PI3K/Akt pathway inhibitors may be used to overcome resistance to nelarabine.
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