Ye Can, Ruan Xueqin, Zhao Yan, Zhu Hongkai, Wang Canfei, Cheng Zhao, Peng Hongling
Department of Hematology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410000, P.R. China.
Institute of Molecular Hematology, Central South University, Changsha, Hunan 410000, P.R. China.
Exp Ther Med. 2023 Mar 15;25(5):191. doi: 10.3892/etm.2023.11890. eCollection 2023 May.
Drug resistance and relapse of T-cell acute lymphoblastic leukemia (T-ALL) remain significant concerns for physicians; hence, the development and screening of effective targeted drugs remain important. Considering that STAT3 is emerging as a potential therapeutic target for T-ALL, T-ALL cell lines (MOLT-4 and CUTLL1) were treated with BP-1-102, a small-molecule inhibitor that blocks STAT3 phosphorylation. Cell Counting Kit-8 assay and colony formation assay results showed that BP-1-102 inhibited T-ALL cell proliferation and colony formation. Flow cytometry and morphological results demonstrated that BP-1-102 dramatically induced apoptosis and caused cell cycle arrest at the G/G phase in T-ALL cell lines. Western blotting results indicated that BP-1-102 suppressed the JAK2/STAT3/c-Myc pathway activity in T-ALL cell lines. In conclusion, BP-1-102 suppressed the JAK2/STAT3/c-Myc signaling pathway in T-ALL cells and exerted various antitumor effects, representing a promising targeted antitumor inhibitor.
T细胞急性淋巴细胞白血病(T-ALL)的耐药性和复发仍是医生们极为关注的问题;因此,开发和筛选有效的靶向药物仍然很重要。鉴于信号转导和转录激活因子3(STAT3)正成为T-ALL的一个潜在治疗靶点,研究人员用BP-1-102(一种可阻断STAT3磷酸化的小分子抑制剂)处理了T-ALL细胞系(MOLT-4和CUTLL1)。细胞计数试剂盒-8检测和集落形成检测结果显示,BP-1-102可抑制T-ALL细胞增殖和集落形成。流式细胞术和形态学结果表明,BP-1-102可显著诱导T-ALL细胞系凋亡,并使细胞周期停滞在G/G期。蛋白质免疫印迹结果表明,BP-1-102可抑制T-ALL细胞系中的JAK2/STAT3/c-Myc信号通路活性。总之,BP-1-102可抑制T-ALL细胞中的JAK2/STAT3/c-Myc信号通路,并发挥多种抗肿瘤作用,是一种有前景的靶向抗肿瘤抑制剂。