吉林大学学报(医学版) ›› 2025, Vol. 51 ›› Issue (2): 428-436.doi: 10.13481/j.1671-587X.20250217

• 基础研究 • 上一篇    

槲皮素对5-氟尿嘧啶诱导的人永生化角质形成细胞损伤的保护作用及其机制

李佳欣1,2,王一2,吴婷婷3,郝诗睿4,付晓1()   

  1. 1.锦州医科大学附属第一医院中医科二门诊,辽宁 锦州 121000
    2.锦州医科大学附属第一医院 辽宁省外科学重点实验室,辽宁 锦州 121000
    3.锦州医科大学附属第一医院急诊科,辽宁 锦州 121000
    4.锦州医科大学附属第一医院麻醉科,辽宁 锦州 121000
  • 收稿日期:2024-05-08 接受日期:2024-06-23 出版日期:2025-03-28 发布日期:2025-04-22
  • 通讯作者: 付晓 E-mail:174002561@qq.com
  • 作者简介:李佳欣(1997-),女,辽宁省锦州市人,在读硕士研究生,主要从事肿瘤及其并发症基础与临床方面的研究。
  • 基金资助:
    国家中医药管理局第五批全国中医临床优秀人才研修项目(国中医药人教函〔2022〕1号);辽宁省卫健委第一批优秀中医临床人才培养项目(辽中医药函〔2021〕1号);辽宁省科技厅自然科学基金项目(2019-ZD-0809)

Protective effect of quercetin against 5-fluorouracil-induced damage in human immortalized keratinocytes and its mechanism

Jiaxin LI1,2,Yi WANG2,Tingting WU3,Shirui HAO4,Xiao FU1()   

  1. 1.Second Outpatient Department of Traditional Chinese Medicine,First Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
    2.Key Laboratory of Surgery of Liaoning Province,First Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
    3.Department of Emergency,First Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
    4.Department of Anesthesiology,First Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
  • Received:2024-05-08 Accepted:2024-06-23 Online:2025-03-28 Published:2025-04-22
  • Contact: Xiao FU E-mail:174002561@qq.com

摘要:

目的 探讨槲皮素对5-氟尿嘧啶(5-FU)诱导的人永生化角质形成细胞(HACAT)损伤的保护作用,并阐明其作用机制。 方法 将HACAT细胞分为对照组(正常培养细胞)、5-FU组(7.5 mg·L-1 5-FU作用于HACAT细胞24 h)和低、中及高剂量槲皮素组(25,50和75 μmol·L-1的槲皮素与7.5 mg·L-1 5-FU共同作用于HACAT细胞24 h)。采用细胞计数试剂盒8(CCK-8)法检测不同剂量(0、10、25、50、75和100 μmol·L-1)槲皮素处理后各组HACAT细胞存活率,活性氧(ROS)荧光探针法检测各组HACAT细胞中ROS水平,荧光素标记的Annexin Ⅴ-FITC/PI双染法检测HACAT细胞凋亡情况,Western blotting法检测各组HACAT细胞中B细胞淋巴瘤2(Bcl-2)、Bcl-2相关X蛋白(Bax)、裂解型天冬氨酸特异性的半胱氨酸蛋白水解酶3(Cleaved Caspase-3)、环氧合酶2(COX-2)、白细胞介素1β(IL-1β)和白细胞介素6(IL-6)蛋白表达水平。 结果 CCK-8法检测,与0 μmol·L-1 槲皮素组比较,10、25、50和75 μmol·L-1槲皮素组HACAT细胞存活率无明显变化,差异无统计学意义(P>0.05),而100 μmol·L-1槲皮素组HACAT细胞存活率明显降低(P<0.05);与5-FU组比较,低、中和高剂量槲皮素组细胞存活率明显升高(P<0.05)。ROS荧光探针法检测,与5-FU组比较,低、中和高剂量槲皮素组HACAT细胞中ROS水平明显降低(P<0.05)。Annexin Ⅴ-FITC/PI双染法检测,与5-FU组比较,低、中和高剂量槲皮素组HACAT细胞凋亡率明显降低(P<0.05)。Western blotting法检测,与5-FU组比较,中和高剂量槲皮素组HACAT细胞中Bcl-2蛋白表达水平明显升高(P<0.05);低、中和高剂量槲皮素组HACAT细胞中Bax和Cleaved Caspase-3蛋白表达水平明显降低(P<0.05);中和高剂量槲皮素组HACAT细胞中COX-2蛋白表达水平明显降低(P<0.05);中剂量槲皮素组HACAT细胞中IL-1β和IL-6蛋白表达水平明显降低(P<0.05)。 结论 槲皮素对5-FU诱导的HACAT细胞损伤具有保护作用,其机制可能与减少ROS和COX-2等炎症因子表达从而抑制细胞凋亡有关。

关键词: 槲皮素, 手足综合征, 人永生化角质形成细胞, 细胞凋亡, 环氧合酶2

Abstract:

Objective To investigate the protective effect of quercetin against 5-fluorouracil (5-FU)- induced damage in the human immortalized keratinocytes (HACAT), and to elucidate its possible mechanism. Methods The HACAT cells were divided into control group (normal cultured cells), 5-FU group (treated with 7.5 mg·L-1 5-FU for 24 h), and low, medium, and high doses of quercetin groups (HACAT cells treated with 25, 50, and 75 μmol·L-1 quercetin combined with 7.5 mg·L-1 5-FU for 24 h). Cell counting kit-8(CCK-8) assay was used to detect the survival rates of HACAT cells treated with different doses(0,10,25,50,75 and 100 μmol·L-1) of quercetin in various groups. The fluorescent probe of reactive oxygen species(ROS) was used to detect ROS levels in the HACAT cells in various groups. Annexin Ⅴ-FITC/PI double staining was used to detect the apoptosis of HACAT cells in various groups. Western blotting method was used to detect the expression levels of B-cell lymphoma-2(Bcl-2), Bcl-2-associated X protein (Bax), Cleaved Caspase-3, cyclooxygenase-2 (COX-2), interleukin-1β (IL-1β), and interleukin-6(IL-6) in the HACAT cells in various groups. Results The CCK-8 assay results showed that compared with 0 μmol·L-1 quercetin group, the survival rates of HACAT cells in 10, 25, 50 and 75 μmol·L-1 quercetin groups showed no significant differences (P>0.05), while the survival rates of HACAT cells in 100 μmol·L-1 quercetin group was significantly decreased (P<0.05). Compared with 5-FU group, the survival rates of the HACAT cells in low, medium and high doses of quercetin group were significantly increased (P<0.05). Compared with 5-FU group, the ROS levels in low, medium, and high doses of quercetin groups were significantly decreased (P<0.05). Annexin Ⅴ-FITC/PI double staining assay showed that compared with 5-FU group, the apoptotic rates in low, medium and high doses of quercetin groups were significantly decreased (P<0.05). The Western blotting results showed that compared with 5-FU group, the expression levels of Bcl-2 protein in medium and high doses of quercetin groups were significantly increased (P<0.05), the expression levels of Bax and Cleaved Caspase-3 proteins in low, medium and high doses of quercetin groups were significantly decreased (P<0.05), the expression levels of COX-2 protein in medium and high doses of quercetin groups were significantly decreased (P<0.05), and the expression levels of IL-1β and IL-6 proteins in medium dose of quercetin group were significantly decreasd (P<0.05). Conclusion Quercetin has protective effect on 5-FU-induced damage in the HACAT cells, and its mechanism may be related to the reduction of the expression of ROS and inflammatory factor COX-2 which attenuate the apoptosis.

Key words: Quercetin, Hand-foot syndrome, Human immortalized keratinocytes, Apoptosis, Cyclooxygenase-2

中图分类号: 

  • R275.9