切换至 "中华医学电子期刊资源库"

中华细胞与干细胞杂志(电子版) ›› 2021, Vol. 11 ›› Issue (03) : 171 -178. doi: 10.3877/cma.j.issn.2095-1221.2021.03.006

论著

妊娠期肝内胆汁淤积症中Beclin2通过介导自噬对滋养细胞凋亡的影响
王芳1, 黄荣1, 谢恺俐1,()   
  1. 1. 412000 株洲,湖南省株洲市中心医院妇产科
  • 收稿日期:2020-07-13 出版日期:2021-06-01
  • 通信作者: 谢恺俐

Effects of Beclin2 on trophoblast apoptosis by mediating autophagy in intrahepatic cholestasis of pregnancy

Fang Wang1, Rong Huang1, Kaili Xie1,()   

  1. 1. Department of Obstetrics and Gynecology, Zhuzhou Central Hospital, 412000 Zhuzhou, China
  • Received:2020-07-13 Published:2021-06-01
  • Corresponding author: Kaili Xie
引用本文:

王芳, 黄荣, 谢恺俐. 妊娠期肝内胆汁淤积症中Beclin2通过介导自噬对滋养细胞凋亡的影响[J/OL]. 中华细胞与干细胞杂志(电子版), 2021, 11(03): 171-178.

Fang Wang, Rong Huang, Kaili Xie. Effects of Beclin2 on trophoblast apoptosis by mediating autophagy in intrahepatic cholestasis of pregnancy[J/OL]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2021, 11(03): 171-178.

目的

探讨Beclin2在妊娠期肝内胆汁淤积症(ICP)产妇胎盘中的表达及其对滋养细胞的作用机制。

方法

选取2018年3月至2019年3月于株洲市中心医院产科住院分娩的ICP产妇30例作为研究对象,ICP轻度产妇和ICP重度产妇的胎盘组织各15例,另取同时期住院分娩的15例正常孕产妇作为对照组。免疫组化检测胎盘组织Beclin2蛋白表达。采用不同浓度(0、2、20、100 μmol/L)的牛磺胆酸(TCA)处理滋养细胞,以建立ICP体外细胞模型。后期实验另设空白对照组(细胞未做任何处理)、si-NC组(转染si-NC)和si-Beclin2组(转染si-Beclin2)、TCA组(添加100 μmol/L TCA)、TCA+si-NC组(添加100 μmol/L TCA并转染si-NC)和TCA+si-Beclin2组(添加100 μmol/L TCA并转染si-Beclin2);CCK-8检测滋养细胞增殖;实时荧光定量PCR检测Beclin2 mRNA表达;流式细胞术检测滋养细胞凋亡;Western blot检测滋养细胞Beclin2、LC3和p62蛋白表达。多组间比较采用单因素方差分析,组间两两比较采用LSD-t检验;胎盘中Beclin2基因的3组比较采用c2检验,组间两两比较用Bonferroni方法。

结果

与健康产妇相比,ICP轻度产妇和ICP重度产妇胎盘组织中Beclin2蛋白阳性率和强阳性率(33.33%比86.67%、93.33%;13.33%比46.67%、66.67%)升高(P均< 0.05/3)。与0、2 μmol/L组比较,20、100 μmol/L组细胞增殖能力24 h(0.53±0.04、0.56±0.04比0.42±0.05、0.38±0.06)、48 h(0.78±0.06、0.81±0.06比0.60±0.05、0.55±0.06)和72 h(0.94±0.08、1.02±0.09比0.73±0.07、0.68±0.08)及p62蛋白表达(1.17±0.12、0.98±0.08比0.85±0.07、0.38±0.03)均降低,Beclin2蛋白表达(0.15±0.01、0.23±0.01比0.46±0.05、0.58±0.04)、LC3Ⅱ/LC3Ⅰ蛋白表达(0.76±0.08、1.26±0.11比1.87±0.15、2.24±0.19)和细胞凋亡率[(3.87±0.25)%、(4.35±0.32)%比(8.67±0.59)%、(26.19±1.27)%]均升高(P均< 0.05),且呈剂量依赖性。与空白对照组相比,TCA组滋养细胞Beclin2蛋白表达(0.25±0.03比1.28±0.11)和LC3Ⅱ/LC3Ⅰ蛋白表达(1.41±0.12比6.39±0.51)、细胞凋亡率[(2.53±0.17)%比(28.67±2.08)%]均升高,p62蛋白表达(0.97±0.08比0.53±0.04)降低(P均< 0.05);与TCA+si-NC组相比,TCA+si-Beclin2组滋养细胞Beclin2蛋白表达(1.16±0.13比0.37±0.04)和LC3Ⅱ/LC3Ⅰ蛋白表达(5.88±0.47比2.35±0.24)、细胞凋亡率[(27.18±2.14)%比(16.33±0.79)%]均降低,p62蛋白(0.48±0.04比0.95±0.09)升高(P均< 0.05)。

结论

Beclin2在ICP产妇胎盘组织中高表达;Beclin2通过上调自噬水平促进TCA处理后滋养细胞凋亡。

Objective

To investigate the expression of Beclin2 in the placenta tissues of pregnant women with intrahepatic cholestasis (ICP) and its effects on trophoblasts.

Methods

Thirty women with ICP who were hospitalized and delivered in the Department of Obstetrics, Zhuzhou Central Hospital from March 2018 to March 2019 were enrolled.15 placental tissues of the women with mild ICP and 15 women with severe ICP were selected, and the other 15 normal pregnant women were selected as the control group. Immunohistochemistry was used to detect the expression of Beclin2 protein in placental tissues. In vitro cultured trophoblasts were divided into 0 μmol/L group (supplemented with saline) , 2 μmol/L group (supplemented with 2 μmol/L TCA) , 20 μmol/L group (supplemented with 20 μmol/L TCA) , and 100 μmol/L group (supplemented with 100 μmol/L TCA) . In the following experiment, a blank control group (cells without any treatment) , Si-NC group (cells were transfected with Si-NC) and si-Beclin2 group (cells were transfected with si-Beclin2) , TCA group (cells were transfected with 100 μmol/L TCA) , TCA+Si-NC group (cells were added with 100 μmol/L TCA and transfected with Si-NC) and TCA+si-Beclin2 group (cells were transfected with 100 μmol/L TCA and transfected with si-Beclin2) were set up, and CCK-8 was used to detect trophoblast proliferation.The mRNA expression of Beclin2 was detected by real-time PCR, trophoblast apoptosis was detected by flow cytometry, and the protein expression of Beclin2, LC3 and p62 in trophoblasts was detected by Western blot. One way ANOVA was used for comparison between multiple groups, and LSD-t test was used for pairwise comparison between groups. Comparisons between control, ICP mild, and ICP severe groups were performed by c2 test, and pairwise comparisons between groups were performed by Bonferroni method.

Results

Compared with healthy pregnant women, the positive rate and strong positive rate of Beclin2 protein in placenta tissue of mild ICP and severe ICP pregnant women (33.33%vs 86.67% and 93.33%, 13.33%vs 46.67% and 66.67%) were significantly increased (P < 0.05/3) . Compared with the 0 μmol/L group and the 2 μmol/L group, the proliferation ability of cells in the 20 μmol/L group and 100 μmol/L group at 24 h (0.53±0.04 and 0.56±0.04 vs 0.42±0.05 and 0.38±0.06) , 48 h (0.78±0.06 and 0.81± 0.06 vs 0.60±0.05 and 0.55±0.06) and 72 h (0.94±0.08 and 1.02±0.09 vs 0.73±0.07 and 0.68±0.08) and expression of p62 protein (1.17±0.12 and 0.98±0.08 vs 0.85±0.07 and 0.38±0.03) were all decreased (P < 0.05) . Expressions of Beclin2 (0.15±0.01 and 0.23±0.01 vs 0.46±0.05 and 0.58±0.04) , LC3Ⅱ/LC3Ⅰprotein (0.76±0.08 and 1.26±0.11 vs 1.87±0.15 and 2.24±0.19) and apoptosis rate [ (3.87±0.25) %and (4.35±0.32) % ratio (8.67±0.59) %and (26.19±1.27) %] were increased (P < 0.05) , and it was dose-dependent. Compared with the blank control group, trophoblast Beclin2 in the TCA group (0.25±0.03 vs 1.28±0.11) and LC3Ⅱ/LC3Ⅰprotein expression (1.41±0.12 vs 6.39±0.51) , cell apoptosis rate [ (2.53±0.17) % vs (28.67±2.08) %] were significantly increased, p62 protein expression (0.97±0.08 vs 0.53±0.04) was significantly decreased (P < 0.05) . Compared with TCA+si- NC group, trophoblast Beclin2 in the TCA+Si-Beclin2 (1.16±0.13 vs 0.37±0.04) and LC3Ⅱ/LC3Ⅰprotein expression (5.88±0.47 vs 2.35±0.24) and cell apoptosis rate [ (27.18±2.14) %vs (16.33±0.79) %] were significantly reduced, and p62 protein expression (0.48±0.04 vs 0.95±0.09) was significantly increased (P < 0.05) .

Conclusion

Beclin2 is highly expressed in ICP maternal placental tissues, and Beclin2 promotes trophoblast apoptosis after TCA treatment by upregulating the level of autophagy.

表1 引物序列信息
表2 临床资料(±s
表3 胎盘中Beclin2基因的表达
图1 倒置显微镜下观察免疫组化检测胎盘中Beclin2基因的表达(亲和素-生物素-过氧化物酶法,×200)
表4 滋养细胞增殖能力的比较(±s
表5 滋养细胞Beclin2、LC3和p62蛋白表达的比较(±s
图2 Western blot检测滋养细胞Beclin2、LC3和p62蛋白表达
表6 滋养细胞凋亡率的比较(±s
图3 流式细胞术检测滋养细胞凋亡(±s
表7 滋养细胞Beclin2蛋白表达的比较(±s
表8 滋养细胞Beclin2、LC3Ⅱ/LC3Ⅰ和p62蛋白表达的比较(±s
图4 Western blot检测滋养细胞Beclin2蛋白表达
图5 Western blot检测滋养细胞Beclin2、LC3Ⅱ/LC3Ⅰ和p62蛋白表达
表9 滋养细胞凋亡率的比较(±s
图6 流式细胞术检测滋养细胞凋亡
1
Piechota J, Jelski W. Intrahepatic cholestasis in pregnancy: Review of the Literature[J]. J Clin Med, 2020, 9(5):1361.
2
Floreani A, Gervasi MT. New insights on intrahepatic cholestasis of pregnancy[J]. Clin Liver Dis, 2016, 20(1):177-189.
3
GalluzziL, Kroemer G. Common and divergent functions of Beclin 1 and Beclin 2[J]. Cell Res, 2013, 23(12):1341-1342.
4
纪璐璐,熊国平,汪琳. 高糖环境下beclin2介导的自噬增强绒毛膜滋养层细胞凋亡[J]. 中国组织化学与细胞化学杂志, 2017, 26(2):109-114.
5
中华医学会妇产科学分会产科学组. 妊娠期肝内胆汁淤积症诊疗指南(2015) [J].中华妇产科杂志, 2015, 31(10):1575-1578.
6
Cui XL, LI ZL, Piao JJ, et al. Mortalin expression in pancreatic cancer and its clinical and prognostic significance[J]. Hum Pathol, 2017, 64(7):171-178.
7
李治遵,邵勇.白藜芦醇通过促进SIRT1表达,抑制NF-κB和TNF-α表达抵抗牛磺胆酸诱导的胎盘合体滋养细胞HTR-8的炎症损伤[J].中国生物化学与分子生物学报, 2016, 32(5):552-560.
8
Yu L, Chen Y, Tooze S A. Autophagy pathway: Cellular and molecular mechanisms[J]. Autophagy, 2018, 14(2):207-215.
9
Su MF, Li Y, Wyborny S, et al. BECN2 interacts with ATG14 through a metastable coiled-coil to mediate autophagy[J]. Protein Sci, 2017, 26(5):972-984.
10
谢冰,陈霞,于骏, 等. Beclin-1在稽留流产中的表达模式及临床意义[J]. 医学研究生学报, 2019, 32(1):78-81.
11
Huang XM, Han XM, Huang ZY, et al. Maternal pentachlorophenol exposure induces developmental toxicity mediated by autophagy on pregnancy mice[J]. Ecotoxicol Environ Saf, 2019, 169(11):829-836.
12
刘晓媛,姚荧,汪涛,等.妊娠期肝内胆汁淤积症不良妊娠结局与细胞死亡方式相关性的研究进展[J]. 中华妇产科杂志, 2018, 53(7):500-503.
13
Dong X, Cheng A, Zou Z, et al. Endolysosomal trafficking of viral G protein-coupled receptor functions in innate immunity and control of viral oncogenesis[J].Proc Natl Acad Sci U S A, 2016, 113(11):2994-2999.
14
Kuramoto K, Wang N, Fan YY, et al. Autophagy activation by novel inducers prevents BECN2-mediated drug tolerance to cannabinoids[J]. Autophagy, 2016, 12(9):1460-1471.
15
Chen J, Deng W, Wang J, et al. Primary bile acids as potential biomarkers for the clinical grading of intrahepatic cholestasis of pregnancy[J]. Int J Gynaecol Obstet, 2013, 122(1):5-8.
16
王月霞,陈敏. 自噬性细胞死亡及其与细胞凋亡、坏死关系研究进展[J].中国公共卫生, 2016, 32(10):1433-1436.
17
Tilija Pun N, Jang WJ, Jeong CH. Role of autophagy in regulation of cancer cell death/apoptosis during anti-cancer therapy: focus on autophagy flux blockade[J]. Arch Pharm Res, 2020, 43(5):475-488.
[1] 张刚, 秦勇, 黄超, 薛震, 吕松岑. 基于骨关节炎软骨细胞表型转化的新兴治疗靶点[J/OL]. 中华关节外科杂志(电子版), 2024, 18(03): 352-362.
[2] 吴杰, 周志强, 符菁, 李喜功, 张钦. 吸入性氢气对大鼠脊髓损伤后自噬及神经功能的影响[J/OL]. 中华危重症医学杂志(电子版), 2024, 17(05): 363-371.
[3] 许彬, 王丽, 陈瑞, 沈奕, 陆件. 瞬时受体电位粘脂素1介导细胞自噬在远端缺血后处理保护大鼠脑缺血-再灌注损伤中的作用研究[J/OL]. 中华危重症医学杂志(电子版), 2024, 17(03): 180-187.
[4] 钟雅雯, 王煜, 王海臻, 黄莉萍. 肌苷通过抑制线粒体通透性转换孔开放缓解缺氧/复氧诱导的人绒毛膜滋养层细胞凋亡[J/OL]. 中华妇幼临床医学杂志(电子版), 2024, 20(05): 525-533.
[5] 李争光, 宰爽嘉, 吴火峰, 孙华, 张永博, 陈浏阳, 戴睿, 张亮. 昼夜节律相关因子在椎间盘退行性变发病机制中作用的研究进展[J/OL]. 中华损伤与修复杂志(电子版), 2024, 19(05): 457-461.
[6] 孙鸿坤, 艾虹, 陈正. 内质网应激介导的牙周炎骨改建失衡的研究进展[J/OL]. 中华口腔医学研究杂志(电子版), 2024, 18(04): 211-218.
[7] 廖泽楷, 梁爱琳, 龚启梅. 根尖周病中程序性细胞死亡的研究进展[J/OL]. 中华口腔医学研究杂志(电子版), 2024, 18(03): 150-155.
[8] 郑俊, 吴杰英, 谭海波, 郑安全, 李腾成. EGFR-MEK-TZ三联合分子的构建及其对去势抵抗性前列腺癌细胞增殖与凋亡的影响[J/OL]. 中华腔镜泌尿外科杂志(电子版), 2024, 18(05): 503-508.
[9] 黄程鑫, 陈莉, 刘伊楚, 王水良, 赖晓凤. OPA1 在乳腺癌组织的表达特征及在ER阳性乳腺癌细胞中的生物学功能研究[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(05): 275-284.
[10] 季加翠, 孙春斌, 罗恩丽. 姜黄素通过调节NF-κB/NLRP3通路减轻LPS诱导小胶质细胞神经炎症损伤[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(04): 193-203.
[11] 王颖, 吴德平, 刘煜, 刘国栋. miR-9-5p下调CXCR4减轻创伤性脑损伤大鼠的神经炎症和细胞凋亡[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(02): 65-72.
[12] 杜霞, 马梦青, 曹长春. 造影剂诱导的急性肾损伤的发病机制及干预靶点研究进展[J/OL]. 中华肾病研究电子杂志, 2024, 13(05): 279-282.
[13] 李景德, 张保艳, 卢培刚, 李博. 法舒地尔对大鼠急性脊髓损伤后神经细胞凋亡和BCL-2蛋白表达水平的影响[J/OL]. 中华神经创伤外科电子杂志, 2024, 10(02): 65-70.
[14] 史清泉, 苗彬, 王烁, 陶琳, 沈晨. miR-181a-5p 靶向ATG5 抑制雨蛙素诱导的大鼠胰腺腺泡细胞AR42J自噬的机制研究[J/OL]. 中华消化病与影像杂志(电子版), 2024, 14(06): 524-530.
[15] 刘霖, 张文欢, 宋雅茹, 姜云璐. Apelin-13 在阿尔茨海默病中的神经保护作用机制研究进展[J/OL]. 中华诊断学电子杂志, 2024, 12(04): 276-280.
阅读次数
全文


摘要


AI


AI小编
你好!我是《中华医学电子期刊资源库》AI小编,有什么可以帮您的吗?