当前位置: X-MOL 学术Genet. Mol. Biol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Caffeic acid and chlorogenic acid cytotoxicity, genotoxicity and impact on global DNA methylation in human leukemic cell lines
Genetics and Molecular Biology ( IF 2.1 ) Pub Date : 2020-01-01 , DOI: 10.1590/1678-4685-gmb-2019-0347
Lívia Cristina Hernandes 1 , Ana Rita Thomazela Machado 1 , Katiuska Tuttis 2 , Diego Luís Ribeiro 2 , Alexandre Ferro Aissa 1 , Paula Pícoli Dévoz 1 , Lusânia Maria Greggi Antunes 1
Affiliation  

Abstract Dietary phenolic compounds such as caffeic and chlorogenic acid exert an antiproliferative effect and modulate the gene-specific DNA methylation status in human breast tumor cells, but it remains unclear whether they interfere with global DNA methylation in human leukemia cells. We examined whether caffeic and chlorogenic acid (1-250 µM) exert antitumor action in human promyelocytic leukemia cells (HL-60) and human acute T-cell leukemia cells (Jurkat). Caffeic and chlorogenic acid did not reduce cell viability in the two cell lines, as assessed using the neutral red uptake and MTT assays. These phenolic acids (1-100 μM) neither induced DNA damage (comet assay) nor increased the micronuclei frequency (micronucleus assay) in HL-60 and Jurkat cells, indicating that they were not genotoxic or mutagenic. Analysis of global DNA methylation levels using a 5-mC DNA ELISA kit revealed that chlorogenic acid at a non-cytotoxic concentration (100 μM) induced global DNA hypomethylation in Jurkat cells, but not in HL-60 cells, suggesting that it exerts a cell-specific effect. Caffeic acid did not change global DNA methylation. As other phenolic compounds, chlorogenic acid probably modulates DNA methylation by targeting DNA methyltransferases. The hypomethylating action of chlorogenic acid can be beneficial against hematological malignances whose pathogenic processes involve impairment of DNA methylation.

中文翻译:

咖啡酸和绿原酸的细胞毒性、遗传毒性和对人类白血病细胞系中整体 DNA 甲基化的影响

摘要 咖啡酸和绿原酸等膳食酚类化合物具有抗增殖作用并调节人类乳腺肿瘤细胞的基因特异性 DNA 甲基化状态,但它们是否会干扰人类白血病细胞的整体 DNA 甲基化尚不清楚。我们检查了咖啡酸和绿原酸 (1-250 µM) 是否在人早幼粒细胞白血病细胞 (HL-60) 和人急性 T 细胞白血病细胞 (Jurkat) 中发挥抗肿瘤作用。正如使用中性红吸收和 MTT 测定所评估的那样,咖啡酸和绿原酸不会降低两种细胞系中的细胞活力。这些酚酸 (1-100 μM) 既不会在 HL-60 和 Jurkat 细胞中诱导 DNA 损伤(彗星试验),也不会增加微核频率(微核试验),表明它们没有遗传毒性或致突变性。使用 5-mC DNA ELISA 试剂盒分析整体 DNA 甲基化水平显示,非细胞毒性浓度 (100 μM) 的绿原酸在 Jurkat 细胞中诱导整体 DNA 低甲基化,但在 HL-60 细胞中不诱导,表明它对细胞产生了影响- 具体效果。咖啡酸没有改变整体 DNA 甲基化。与其他酚类化合物一样,绿原酸可能通过靶向 DNA 甲基转移酶来调节 DNA 甲基化。绿原酸的低甲基化作用对血液系统恶性肿瘤有益,其致病过程涉及 DNA 甲基化受损。咖啡酸没有改变整体 DNA 甲基化。与其他酚类化合物一样,绿原酸可能通过靶向 DNA 甲基转移酶来调节 DNA 甲基化。绿原酸的低甲基化作用对血液系统恶性肿瘤有益,其致病过程涉及 DNA 甲基化受损。咖啡酸没有改变整体 DNA 甲基化。与其他酚类化合物一样,绿原酸可能通过靶向 DNA 甲基转移酶来调节 DNA 甲基化。绿原酸的低甲基化作用对血液系统恶性肿瘤有益,其致病过程涉及 DNA 甲基化受损。
更新日期:2020-01-01
down
wechat
bug