1.武汉儿童医院口腔科,湖北 武汉 430010
2.黄石市中心医院/湖北理工学院附属医院口腔科,湖北 黄石 435000
3.武汉大学人民医院口腔科,湖北 武汉 430060
Received:22 January 2025,
Published:25 December 2025
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李静,蔡洁明,邓卓峰等.环状RNA circ_0138959对幼鼠牙龈炎模型细胞焦亡的调控研究[J].局解手术学杂志,2025,34(12):1057-1062.
LI Jing,CAI Jie-ming,DENG Zhuo-feng,et al.Regulation of circular RNA circ_0138959 on pyroptosis in a juvenile rat gingivitis model[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(12):1057-1062.
李静,蔡洁明,邓卓峰等.环状RNA circ_0138959对幼鼠牙龈炎模型细胞焦亡的调控研究[J].局解手术学杂志,2025,34(12):1057-1062. DOI: 10.11659/jjssx.01E025119.
LI Jing,CAI Jie-ming,DENG Zhuo-feng,et al.Regulation of circular RNA circ_0138959 on pyroptosis in a juvenile rat gingivitis model[J].JOURNAL OF REGIONAL ANATOMY AND OPERATIVE SURGERY,2025,34(12):1057-1062. DOI: 10.11659/jjssx.01E025119.
目的
2
探讨环状RNA circ_0138959通过核因子E2相关因子2(Nrf2)/血红素加氧酶-1(HO-1)信号通路对实验性幼鼠牙龈炎模型中细胞焦亡的调控作用。
方法
2
将40只SD大鼠随机分为假手术组、模型组、模型+si-NC组、模型+si-circ_0138959组、模型+si-circ_0138959+ML385组,每组8只。建立大鼠牙龈炎模型,采用钝头探针测定假手术组和模型组大鼠的牙龈指数,RNA FISH实验检测假手术组和模型组大鼠牙龈组织中circ_0138959的相对表达水平。酶联免疫吸附测定(ELISA)法检测各组大鼠血清白细胞介素(IL)-18、IL-1β、IL-6、肿瘤坏死因子α(TNF-α)的表达水平。实时荧光定量PCR(RT-qPCR)法检测各组大鼠牙龈组织中circ_0138959的表达水平。Western blot法检测各组大鼠牙龈组织中Nrf2、HO-1、消皮素D(GSDMD)、NOD样受体热蛋白结构域相关蛋白3(NLRP3)、凋亡相关斑点样蛋白(ASC)、裂解型半胱氨酸天冬氨酸蛋白酶1(cleaved Caspase-1)蛋白的表达水平。
结果
2
与假手术组比较,模型组大鼠的牙龈指数上调(
P
<
0.05),circ_0138959表达水平上调(
P
<
0.05),Nrf2、HO-1蛋白表达水平下调(
P
<
0.05),GSDMD、NLRP3、ASC、cleaved Caspase-1蛋白表达水平上调(
P
<
0.05),血清IL-1β、IL-6、TNF-α、I
L-18水平上调(
P
<
0.05);与模型组和模型+si-NC组比较,模型+si-circ_0138959组大鼠牙龈组织中的circ_0138959表达水平下调(
P
<
0.05),Nrf2、HO-1蛋白表达水平上调,GSDMD、NLRP3、ASC、cleaved Caspase-1蛋白表达水平下调(
P
<
0.05),血清IL-1β、IL-6、TNF-α、IL-18水平下调(
P
<
0.05);与模型+si-circ_0138959组比较,模型+si-circ_0138959+ML385组大鼠牙龈组织中的Nrf2、HO-1蛋白表达水平下调(
P
<
0.05),GSDMD、NLRP3、ASC、cleaved Caspase-1蛋白表达水平上调(
P
<
0.05),血清IL-1β、IL-6、TNF-α、IL-18水平上调(
P
<
0.05)。
结论
2
环状RNA circ_0138959通过负调控Nrf2/HO-1信号通路上调实验性幼鼠牙龈炎模型中NLRP3/GSDMD介导的细胞焦亡,为儿童牙龈炎的治疗提供了潜在靶点。
Objective
2
To investigate the regulatory role of circular RNA circ_0138959 in pyroptosis in an experimental juvenile rat gingivitis model through the nuclear factor erythroid 2-related factor 2(Nrf2)/heme oxygenase-1(HO-1) signaling pathway.
Methods
2
Forty SD rats were randomly divided into the sham group,the model group,the model+si-NC group,the model+si-circ_0138959 group,and the model+si-circ_0138959+ML385 group,with 8 rats in each group. A rat gingivitis model was established,the gingival index of rats in the sham group and the model group was determined by blunt probe,and the relative expression level of circ_0138959 in gingival tissues of rats in the sham group and the model group was detected by RNA FISH experiment.The expression levels of serum interleukin (IL)-18,IL-1β,IL-6,and tumor necrosis factor-α(TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). The expression levels of circ_0138959 in gingival tissues of rats in each group was detected by reverse transcription quantitative PCR (RT-qPCR). The protein expression levels of Nrf2,HO-1,Gasdermin D (GSDMD),NOD-like receptor thermal protein domain associated protein 3 (NLRP3),apoptosis-associated speck-like protein containing a CARD (ASC),and cleaved cysteinyl aspartate-specific proteinase-1(cleaved Caspase-1) in gingival tissues of rats in each group were detected by Western blot.
Results
2
Compared with the sham group,the gingival index of rats in the model group was up-regulated (
P
<
0.05),the expression levels of circ_0138959 was up-regulated (
P
<
0.05),the protein expression levels of Nrf2 and HO-1 were down-regulated (
P
<
0.05),the protein expression levels of GSDMD,NLRP3,ASC,and cleaved Caspase-1 were up-regulated (
P
<
0.05),and the levels of serum IL-1β,IL-6,TNF-α and IL-18 were up-regulated (
P
<
0.05). Compared with the model group and the model+si-NC group,the expression levels of circ_0138959 in gingival tissues of rats in the model+si-circ_0138959 group was down-regulated (
P
<
0.05),the protein expression levels of Nrf2 and HO-1 were up-regulated (
P
<
0.05),the protein expression levels of GSDMD,NLRP3,ASC,and cleaved Caspase-1 were down-regulated (
P
<
0.05),and the levels of serum IL-1β,IL-6,TNF-α and IL-18 were down-regulated (
P
<
0.05). Compared with the model+si-circ_0138959 group,the protein expression levels of Nrf2 and HO-1 in gingival tissues of rats in the model+si-circ_0138959+ML385 group were down-regulated (
P
<
0.05),the protein expression levels of GSDMD,NLRP3,ASC,and cleaved Caspase-1 were up-regulated (
P
<
0.05),and the levels of serum IL-1β,IL-6,TNF-α and IL-18 were up-regulated (
P
<
0.05).
Conclusion
2
Circular RNA circ_0138959 upregulates NLRP3/GSDMD-mediated pyroptosis in the experimental juvenile rat gingivitis model by negatively regulating the Nrf2/HO-1 signaling pathway,providing a potential target for the treatment of children's gingivitis.
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