1.陆军特色医学中心(第三军医大学大坪医院)血液内科,重庆
2.中国中医科学院眼科医院糖尿病眼病科,北京
3.陆军第958医院消化内科,重庆
4.重庆西计医院消化内科,重庆
CHEN Ling, E-mail: 2684643323@qq.com
Received:13 June 2024,
Revised:08 October 2024,
Published:15 February 2025
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雷蕾,吕玉欣,张晶,等.类风湿性关节炎成纤维样滑膜细胞特征基因TNFAIP6的鉴定及验证[J].陆军军医大学学报,2025,47(03):234-242.DOI:10.16016/j.2097-0927.202406034.
LEI L,LYU Y X,ZHANG J,et al.Identification and validation of hub gene TNFAIP6 of fibroblast-like synoviocytes in rheumatoid arthritis[J].J Army Med Univ,2025,47(03):234-242.DOI:10.16016/j.2097-0927.202406034.
雷蕾,吕玉欣,张晶,等.类风湿性关节炎成纤维样滑膜细胞特征基因TNFAIP6的鉴定及验证[J].陆军军医大学学报,2025,47(03):234-242.DOI:10.16016/j.2097-0927.202406034. DOI:
LEI L,LYU Y X,ZHANG J,et al.Identification and validation of hub gene TNFAIP6 of fibroblast-like synoviocytes in rheumatoid arthritis[J].J Army Med Univ,2025,47(03):234-242.DOI:10.16016/j.2097-0927.202406034. DOI:
目的
2
鉴定类风湿性关节炎(rheumatoid arthritis,RA)成纤维样滑膜细胞的特征基因,并验证其对增殖、迁移、侵袭能力的影响。
方法
2
从基因表达综合(Gene Expression Omnibus,GEO)数据库下载4个独立的滑膜组织微阵列转录组测序数据集(GSE1919、GSE55235、GSE55457、GSE77298)和1个滑膜细胞单细胞测序数据集(GSE192504),利用差异基因分析、加权基因共表达网络分析(weighted gene co-expression network analysis,WGCNA)、单细胞测序数据分析等多种生物信息学分析方法鉴定RA成纤维样滑膜细胞的特征基因。利用RT-qPCR和Western blot检测肿瘤坏死因子α诱导蛋白6(TNF alpha induced protein 6,TNFAIP6)在人RA成纤维样滑膜细胞系MH7A体外模拟炎症环境下的表达水平。MH7A转染si-TNFAIP6进行基因沉默,采用CCK-8和Transwell实验检测沉默TNFAIP6对MH7A细胞增殖、迁移、侵袭能力的影响。
结果
2
联合差异基因分析、WGCNA和单细胞测序数据分析,确定了1个RA成纤维样滑膜细胞特征基因(TNFAIP6)。RT-qPCR和Western blot显示,与无菌磷酸盐缓冲液(phosphate buffered saline,PBS)处理比较,10 ng/mL浓度的肿瘤坏死因子-α(tumor nec
rosis factor-α,TNF-α)显著上调MH7A细胞TNFAIP6的mRNA和蛋白表达(
P
<
0.05)。CCK-8和Transwell实验显示,在MH7A细胞敲低TNFAIP6的表达后,敲低组(si-TNFAIP6)的细胞增殖、迁移和侵袭能力相较于对照组(FAM-si-NC)有显著的降低(
P
<
0.05)。
结论
2
TNFAIP6在RA成纤维样滑膜细胞中特异性高表达,促进其增殖、迁移、侵袭能力,可能是RA成纤维样滑膜细胞异常活化的主要贡献者。
Objective
2
To identify the hub gene of fibroblast-like synoviocytes in rheumatoid arthritis (RA) and verify its impact on proliferation
migration and invasion of the cells.
Methods
2
Four independent synovial tissue microarray transcriptome sequencing datasets and one single cell sequencing dataset were downloaded from the Gene Expression Omnibus (GEO) database
and the hub gene of RA fibroblast-like synovial cells was identified by differential gene analysis
weighted gene co-expression network analysis (WGCNA) and single-cell sequencing data analysis. The expression of TNFAIP6 in human RA fibroblast-like synovial cell line MH7A was detected by RT-qPCR and Western blotting under simulated inflammatory environment. After MH7A cells were transfected with si-TNFAIP6
CCK-8 and Transwell assays were applied to detect the effects of silencing TNFAIP6 on the proliferation
migration and invasion abilities of MH7A cells.
Results
2
With the aid of differential gene expression analysis
WGCNA
and single-cell sequencing data
we identified TNFAIP6 as the characteristic gene of RA fibroblast-like synoviocytes. RT-qPCR and Western blot assay demonstrated that TNFAIP6 was significantly highly expressed at mRNA and protein levels in MH7A cells stimulated with 10 ng/mL TNF-α when compared to the cells treated with PBS (P<0.05). CCK-8 and Transwell assays indicated that the silencing of TNFAIP6 markedly inhibited the proliferation
migration and invasion abilities of MH7A cells when compared with the control cells (FAM-si-NC
P<0.05).
Conclusion
2
TNFAIP6 is highly expressed specifically in RA fibroblast synoviocytes
which promotes the proliferation
migration and invasion
and may be the main contributor to the abnormal activation of RA fibroblast synoviocytes.
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