Role of eIF4A1 in triple-negative breast cancer stem-like cell-mediated drug resistance.

Role of eIF4A1 in triple-negative breast cancer stem-like cell-mediated drug resistance.
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eIF4A1 在三阴性乳腺癌干细胞样细胞介导的耐药性中的作用。

DOI:
10.1002/cnr2.1299
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发表时间:
2022-12
期刊:
影响因子:
1.7
通讯作者:
Tiwari, Amit K.
Tiwari, Amit K.
中科院分区:
其他
文献类型:
--
作者:
Raman, Dayanidhi;Tiwari, Amit K.

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在帽依赖性翻译中,真核生物翻译起始因子4A(eIF 4A 1)是一种mRNA解旋酶,参与二级结构的解旋,如关键致癌mRNA 5′前导区的茎环。这有助于核糖体扫描和致癌mRNA的翻译。eIF 4A 1在翻译许多癌蛋白中具有调节作用,这些癌蛋白在转移的几个步骤中具有重要作用。Sridharan et.等人发现并提供了一种新的见解,即eIF 4A 1如何通过影响三阴性乳腺癌(TNBC)干细胞样细胞中多能Yamanaka转录因子和ATP结合盒(ABC)转运蛋白的水平,在耐药性中发挥调节作用。这些发现可能有助于我们了解化疗耐药性的分子基础,特别是在TNBC的已确定转移中。重要的是,eIF 4A 1可能在转移性TNBC中形成新的临床靶点,来自Effector Therapeutics的靶向eIF 4A 1的药物eFT 226已经处于1 - 2期临床试验中。
In cap‐dependent translation, the eukaryotic translation initiation factor 4A (eIF4A1) is an mRNA helicase is involved in unwinding of the secondary structure, such as the stem‐loops, at the 5′‐leader regions of the key oncogenic mRNAs. This facilitates ribosomal scanning and translation of the oncogenic mRNAs. eIF4A1 has a regulatory role in translating many oncoproteins that have vital roles in several steps of metastases. Sridharan et. al. have discovered and provide a novel insight into how eIF4A1 can play a regulatory role in drug resistance by influencing the levels of pluripotent Yamanaka transcription factors and ATP‐binding cassette (ABC) transporters in triple‐negative breast cancer (TNBC) stem‐like cells. These findings may help us understand the molecular underpinnings of chemoresistance, especially in established metastases in TNBC. Importantly, eIF4A1 may form a novel clinical target in metastatic TNBC and the drug eFT226 from Effector Therapeutics targeting eIF4A1 is already in phase1‐2 clinical trial.
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