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中华医学超声杂志(电子版) ›› 2024, Vol. 21 ›› Issue (12) : 1132 -1141. doi: 10.3877/cma.j.issn.1672-6448.2024.12.006

基础研究

低强度超声缓解顺铂所致小鼠卵巢损伤的实验研究
周圆圆1, 周怡1, 段亚阳1, 张怡卿1, 朱峰宇1, 张超学1,()   
  1. 1.230022 合肥,安徽医科大学第一附属医院 国家卫生健康委配子及生殖道异常研究重点实验室
  • 收稿日期:2024-11-28 出版日期:2024-12-01
  • 通信作者: 张超学

Alleviation of cisplatin-induced ovarian damage in mice by low-intensity ultrasound: an experimental study

Yuanyuan Zhou1, Yi Zhou1, Yayang Duan1, Yiqing Zhang1, Fengyu Zhu1, Chaoxue Zhang1,()   

  1. 1.The First Affiliated Hospital of Anhui Medical University, Key Laboratory of Gametes and Reproductive Tract Anomalies Research, National Health and Wellness Commission, Hefei 230022, China
  • Received:2024-11-28 Published:2024-12-01
  • Corresponding author: Chaoxue Zhang
引用本文:

周圆圆, 周怡, 段亚阳, 张怡卿, 朱峰宇, 张超学. 低强度超声缓解顺铂所致小鼠卵巢损伤的实验研究[J/OL]. 中华医学超声杂志(电子版), 2024, 21(12): 1132-1141.

Yuanyuan Zhou, Yi Zhou, Yayang Duan, Yiqing Zhang, Fengyu Zhu, Chaoxue Zhang. Alleviation of cisplatin-induced ovarian damage in mice by low-intensity ultrasound: an experimental study[J/OL]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2024, 21(12): 1132-1141.

目的

探讨低强度脉冲超声(LIPUS)对顺铂所致小鼠卵巢细胞损伤的缓解作用。

方法

将40 只ICR 小鼠分为对照组(n=12)、顺铂组(n=14)、顺铂+LIPUS 组(n=14),对照组小鼠腹腔注射生理盐水,顺铂组小鼠腹腔注射顺铂,顺铂+LIPUS 组小鼠腹腔顺铂注射、次日LIPUS 照射,周期共2 周。取小鼠卵巢行HE 染色、RNA 测序、免疫组化、TUNEL 染色、蛋白质免疫印迹(western blot)及实时荧光定量聚合酶链反应(qPCR),进行卵泡计数,检测卵巢中凋亡、铁死亡及氧化应激等细胞生理事件相应细胞因子表达水平。

结果

与对照组相比,顺铂组卵巢体积缩小;与顺铂组相比,顺铂+LIPUS 组小鼠的卵巢体积增大。对照组、顺铂组与顺铂+LIPUS 组的卵巢重量比较[(8.8±1.34)mg vs (2.8±0.45)mg vs (5.6±1.35)mg],差异有统计学意义(P<0.05)。与对照组相比,顺铂组原始卵泡、初级卵泡、次级卵泡及有腔卵泡的数目减少;与顺铂组相比,顺铂+LIPUS 组相应各级卵泡数目增多(P<0.05)。LIPUS 治疗与否差异基因主要富集在细胞生理水平事件上,如细胞凋亡、铁死亡及氧化应激方面。与对照组相比,顺铂组Bax、p-H2AX、TUNEL 信号、3-Nit、4-HNE 及8-OHdG 表达增加,Bcl2、SIRT1、SIRT2、Nrf2、FPN、GPX4、Fth、Ftl 等因子表达减少(P<0.05);与顺铂组相比,顺铂+LIPUS 组Bax、p-H2AX、TUNEL 信号、3-Nit、4-HNE 及8-OHdG 表达减少,Bcl2 及铁死亡相应各因子除SIRT2 外表达均增加(P<0.05)。

结论

LIPUS 可以缓解顺铂所致小鼠卵巢损伤,其机制可能是通过调控凋亡、铁死亡及氧化应激细胞因子的表达。

Objective

To investigate the repairing effect of low-intensity ultrasound (LIPUS)on cisplatin-induced ovarian cell damage in mice.

Methods

Forty ICR mice were divided into a control group (n=12), a cisplatin group (n=14), and a cisplatin+LIPUS group (n=14).Control mice were injected intraperitoneally with saline, mice in the cisplatin group were injected intraperitoneally with cisplatin, and the cisplatin+LIPUS group underwent intraperitoneal cisplatin injection, followed by LIPUS irradiation on the next day.The treatment cycle was 2 weeks long.Mouse ovary tissues were taken for HE staining for follicle counting.RNA sequencing, immunohistochemistry, TUNEL staining, protein immunoblotting (Western blot), and real-time fluorescence quantitative polymerase chain reaction (qPCR) were performed to detect the expression of cytokines in different cellular physiological events in the ovaries such as apoptosis, iron death,and oxidative stress.

Results

Compared to the control group, ovarian size was reduced in the cisplatin group; compared to the cisplatin group, ovary size was increased in the cisplatin+LIPUS group.Comparison of ovarian weights in the control, cisplatin, and cisplatin+LIPUS groups (8.8±1.34 vs 2.8±0.45 vs 5.6±1.35)revealed statistically significant differences (P<0.05).Compared to the control group, the number of primordial follicles, primary follicles, secondary follicles and antral follicles was reduced in the cisplatin group; compared with the cisplatin group, the number of follicles at the corresponding levels was increased in the cisplatin+LIPUS group (P<0.05).Between mice with LIPUS treatment and controls, differential genes were mainly enriched in events at the cellular physiological level, such as apoptosis, iron death, and oxidative stress.Compared to the control group, Bax, p-H2AX, TUNEL signal, 3-Nit, 4-HNE, and 8-OHdG levels were increased, while the levels of factors such as Bcl2, SIRT1, SIRT2, Nrf2, FPN, GPX4, Fth, and Ftl were reduced in the cisplatin group (P<0.05); compared with the cisplatin group, the levels of Bax,p-H2AX, TUNEL signal, 3-Nit, 4-HNE, and 8-OHdG were reduced, while the levels of Bcl2 and iron death factors except SIRT2 were increased (P<0.05).

Conclusion

LIPUS can alleviate cisplatin-induced ovarian damage in mice, possibly by regulating apoptosis, iron death, and oxidative stress.

图1 小鼠造模实验流程图 注:LIPUS 为低强度脉冲超声;Day1 ~Day14 为第1 ~14 天
表1 小鼠卵巢组织引物序列
图2 各组小鼠卵巢体积大小比较及卵巢重量定量分析图。图a 示对照组、顺铂组及顺铂+低强度脉冲超声(LIPUS)组卵巢大小;图b 为对照组、顺铂组及顺铂+LIPUS 组卵巢重量定量分析柱状图(*表示P<0.05;****表示P<0.0001) 注:LIPUS 为低强度脉冲超声
表2 不同组别小鼠各级卵泡计数比较(±s
图3 各组小鼠卵巢HE 染色图像。图a ~c 分别为对照组、顺铂组及顺铂+LIPUS 组卵巢HE 染色图像(×50);图d ~f 分别为3 组卵巢HE 染色图像(×100);图g ~i 分别为3 组卵巢HE 染色图像(×200)(箭头所示为原始卵泡、初级卵泡、次级卵泡及有腔卵泡) 注:LIPUS 为低强度脉冲超声
图4 三组小鼠的转录组测序及生物信息学分析图。图a,b 分别为顺铂组与对照组、顺铂组与顺铂+LIPUS 组差异基因KEGG 富集散点图(纵轴表示通路名称,横轴表示富集因子,点的大小表示此通路中差异表达基因个数多少,而点的颜色对应于不同的Q 值范围);图c,d 分别为顺铂组与对照组、顺铂组与顺铂+LIPUS 组显著富集KEGG 注释分类条形图(纵轴表示通路名称,横轴表示基因个数) 注:LIPUS 为低强度脉冲超声
图5 各组小鼠卵巢组织Bax、Bcl2 因子表达的免疫组化图像(×200)。图a ~c 分别为对照组、顺铂组及顺铂+LIPUS 组卵巢组织Bax 因子表达免疫组化图像;图d ~f 分别为3 组卵巢组织Bcl2 因子表达免疫组化图像 注:LIPUS 为低强度脉冲超声
图6 各组小鼠卵巢组织Bax、Bcl2 因子定量分析图。图a 为对照组、顺铂组及顺铂+LIPUS 组卵巢组织Bax 因子定量分析柱状图;图b 为3 组卵巢组织Bcl2 因子定量分析柱状图(*表示P<0.05;**表示P<0.01;***表示P<0.001) 注:LIPUS 为低强度脉冲超声
图7 各组小鼠卵巢组织细胞凋亡相关因子表达的Western blot 图像及定量分析图。图a 为对照组、顺铂组及顺铂+LIPUS 组小鼠卵巢组织p-H2AX、Bax、GAPDH 因子表达的Western blot 图像;图b,c 分别为3 组p-H2AX/GAPDH、Bax/GAPDH 因子表达的定量分析柱状图(*表示P<0.05;**表示P<0.01) 注:LIPUS 为低强度脉冲超声
图8 各组小鼠卵巢细胞凋亡情况TUNEL 染色图像。图a ~c 分别为对照组、顺铂组及顺铂+LIPUS 组TUNEL 染色图像;图d ~f 分别为3 组细胞核染色图像;图g ~i 分别为3 组TUNEL 及DAPI 染色合成图像 注:LIPUS 为低强度脉冲超声
图9 各组小鼠卵巢细胞凋亡的定量分析柱状图(**表示P<0.01;***表示P<0.001) 注:LIPUS 为低强度脉冲超声
图10 各组小鼠卵巢组织铁死亡相关因子m-RNA 相对表达水平柱状图。图a ~g 分别为对照组、顺铂组及顺铂+LIPUS组卵巢组织SIRT1、Nrf2、GPX4、SIRT2、FPN、Fth 及Ftl 因子mRNA 相对表达水平的定量分析柱状图(*表示P<0.05;**表示P<0.01;***表示P<0.001;****表示P<0.0001) 注:LIPUS 为低强度脉冲超声
图11 各组小鼠卵巢组织相应氧化应激因子表达的免疫组化图像(×200)及定量分析图。图a ~c 为对照组、顺铂组及顺铂+LIPUS 组3-Nit 因子表达的免疫组化图像;图d ~f 为3 组4-HNE 因子表达的免疫组化图像;图g ~i 为3 组8-OHdG 因子表达的免疫组化图像;图j ~l 分别为3 组3-Nit、4-HNE 及8-OHdG 的定量分析柱状图(**表示P<0.01;***表示P<0.001;****表示P<0.0001) 注:LIPUS 为低强度脉冲超声
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