Fangchinoline Inhibits Human Esophageal Cancer by Transactivating ATF4 to Trigger Both Noxa-Dependent Intrinsic and DR5-Dependent Extrinsic Apoptosis.

Fangchinoline Inhibits Human Esophageal Cancer by Transactivating ATF4 to Trigger Both Noxa-Dependent Intrinsic and DR5-Dependent Extrinsic Apoptosis.
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Fangchinoline 通过反式激活 ATF4 触发 Noxa 依赖性内源性和 DR5 依赖性外源性细胞凋亡来抑制人食管癌

DOI:
10.3389/fonc.2021.666549
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发表时间:
2021
影响因子:
4.7
通讯作者:
Jia L
Jia L
中科院分区:
医学3区
文献类型:
--
作者:
Zhang Y;Wang S;Chen Y;Zhang J;Yang J;Xian J;Li L;Zhao H;Hoffman RM;Zhang Y;Jia L

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食管鳞状细胞癌是一种恶性肿瘤。中药单体防己诺林碱(FCL)已被报道在几种人类癌细胞类型中具有抗肿瘤活性。然而,其对食管鳞癌的治疗效果和潜在机制仍有待阐明。在本研究中,我们第一次证明了FCL在体外和体内都能显著抑制ESCC的生长。机制研究表明,FCL诱导的ESCC细胞周期G1期阻滞依赖于p21和p27。此外,我们发现FCL通过反式激活ATF4协同触发Noxa依赖的内源性凋亡和DR5依赖的外源性凋亡,这是一种新的机制。我们的研究结果阐明了FCL的抑瘤效果和机制,并证明FCL是一种潜在的抗ESCC药物。
Esophageal squamous cell carcinoma (ESCC) is a recalcitrant cancer. The Chinese herbal monomer fangchinoline (FCL) has been reported to have anti-tumor activity in several human cancer cell types. However, the therapeutic efficacy and underlying mechanism on ESCC remain to be elucidated. In the present study, for the first time, we demonstrated that FCL significantly suppressed the growth of ESCC both in vitro and in vivo. Mechanistic studies revealed that FCL-induced G1 phase cell-cycle arrest in ESCC which is dependent on p21 and p27. Moreover, we found that FCL coordinatively triggered Noxa-dependent intrinsic apoptosis and DR5-dependent extrinsic apoptosis by transactivating ATF4, which is a novel mechanism. Our findings elucidated the tumor-suppressive efficacy and mechanisms of FCL and demonstrated FCL is a potential anti-ESCC agent.
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