目的筛选和验证脓毒症患儿外周血中差异表达的长链非编码RNA(long non-coding RNA,lncRNAs),探讨其在儿童脓毒症发病机制中的作用。
方法选取2016年1月至12月在首都儿科研究所附属儿童医院ICU进行救治的3例脓毒症患儿和3例健康儿童的外周血标本,通过lncRNA测序技术筛选出差异表达的lncRNAs和mRNAs;对差异表达的lncRNAs进行靶基因预测,并根据GO分析结果选出与线粒体ATP合酶(F 1F O-ATPase)活性相关的lncRNA-mRNA关系对;进一步扩大样本量,采用实时荧光定量逆转录-聚合酶链反应(qRT-PCR)技术对筛选结果中F 1F O-ATPase活性相关的部分mRNAs及lncRNAs进行验证。
结果测序结果显示,与健康儿童相比,脓毒症患儿外周血中差异表达的lncRNAs共252个(86个表达上调,166个表达下调),差异表达的mRNAs共2 652个(955个表达上调,1 697个表达下调);qRT-PCR验证结果显示:lncRNA ENST00000621933.1、ENST00000616950.1、ENST00000595748.1在脓毒症患儿中表达升高( P<0.05),MT-ATP8、ATP5E以及lncRNA ENST00000624705.1和ENST00000615535.1在脓毒症患儿中表达降低( P<0.05),与测序结果一致。
结论脓毒症患儿外周血中存在差异表达的lncRNAs,以MT-ATP8及ATP5E作为靶基因的lncRNA ENST00000621933.1、ENST00000616950.1、ENST00000595748.1、ENST00000624705.1和ENST00000615535.1的表达水平可能与儿童脓毒症的发生发展有关。
ObjectiveTo screen and identify differentially expressed long non-coding RNA (lncRNAs) in peripheral blood of children with sepsis, and to explore the role of lncRNAs in the pathogenesis of sepsis in children.
MethodsThe peripheral blood samples of 3 children with sepsis admitted to the ICU of Children′s Hospital of Capital Institute of Pediatrics from January to December 2016 and 3 healthy children who underwent physical examination in our hospital during the same period were selected, and the differential expression profiles of lncRNAs and mRNAs were screened by lncRNAs sequencing technology.The target genes of differentially expressed lncRNAs were predicted and the relationship pairs of lncRNA-mRNA related to F 1F O-ATPase activity were constructed according to the results of GO analysis.Further increasing the sample size, we verified the expression of some F 1F O-ATPase activity-related mRNAs and lncRNAs which were differentially expressed in the screening results by real-time fluorescent quantitative polymerase chain reaction(qRT-PCR).
ResultsSequencing results showed that there were 252 lncRNAs with significant differential expression in peripheral blood of children with sepsis compared with healthy children, of which 86 were up-regulated and 166 were down-regulated; meanwhile, there were 2 652 mRNAs with significant differential expression, of which 955 were up-regulated and 1 697 were down-regulated.The results of qRT-PCR showed that the expression of lncRNA ENST00000621933.1, ENST00000616950.1 and ENST00000595748.1 in peripheral blood of children with sepsis increased( P<0.05), while the expression of MT-ATP8, ATP5E and ENST00000624705.1, ENST00000615535.1 in peripheral blood of children with sepsis decreased( P<0.05), which was consistent with the sequencing results.
ConclusionlncRNAs are differentially expressed in peripheral blood of children with sepsis compared with healthy children.The expression levels of lncRNA ENST00000621933.1, ENST00000616950.1, ENST00000595748.1, ENST00000624705.1 and ENST00000615535.1 which their target genes are MT-ATP8 and ATP5E may be related to the development of sepsis in children.
王圆圆,卢秀秀,陈源美,等. 脓毒症患儿外周血中ATPase相关基因及关联长链非编码RNA的差异表达[J]. 中国小儿急救医学,2020,27(04):272-278.
DOI:10.3760/cma.j.issn.1673-4912.2020.04.008版权归中华医学会所有。
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lncRNAs ID | 基因名称 | 差异倍数 | P值 | 调控 |
---|---|---|---|---|
ENST00000604191.1 | AC090627.1 | 59.53 | 0.01 | 下调 |
ENST00000622077.1 | LINC01002 | 57.39 | 0.03 | 上调 |
ENST00000586907.3 | PSMD5-AS1 | 53.44 | 0.05 | 上调 |
ENST00000529979.3 | MRVI1-AS1 | 50.29 | 0.02 | 上调 |
ENST00000428083.1 | RHOA-IT1 | 42.52 | 0.04 | 上调 |
ENST00000578664.1 | RP11-838N2.4-004 | 34.60 | 0.00 | 下调 |
ENST00000579007.3 | RP11-838N2.4-003 | 34.60 | 0.00 | 下调 |
ENST00000621191.1 | AC090627.1 | 33.89 | 0.00 | 下调 |
ENST00000570416.3 | MIR22HG | 33.71 | 0.01 | 上调 |
ENST00000554530.3 | RP11-76E17.3 | 32.51 | 0.01 | 上调 |
ENST00000531076.1 | RP11-326C3.12 | 32.48 | 0.04 | 上调 |
ENST00000609751.2 | AC159540.1 | 31.08 | 0.00 | 下调 |
ENST00000609407.1 | RP11-351D16.3 | 26.14 | 0.04 | 上调 |
ENST00000534483.1 | RP11-326C3.12 | 17.93 | 0.02 | 上调 |
ENST00000534354.1 | RP11-535A19.1 | 17.39 | 0.03 | 上调 |
ENST00000616716.2 | AC159540.1 | 17.17 | 0.02 | 下调 |
ENST00000441749.1 | AC021016.6 | 15.65 | 0.05 | 上调 |
ENST00000528019.3 | RGS5 | 15.36 | 0.04 | 下调 |
ENST00000367716.3 | RP11-296O14.3 | 14.20 | 0.05 | 上调 |
ENST00000624628.1 | RP13-580B18.4 | 13.64 | 0.04 | 上调 |
注:lncRNAs:长链非编码RNA。
GO ID | GO术语 | GO功能 |
---|---|---|
GO:0006200 | ATP分解代谢过程 | 生物过程 |
GO:0015986 | ATP合成偶联质子转运 | 生物过程 |
GO:0042776 | 线粒体ATP合成偶联质子转运 | 生物过程 |
GO:0044281 | 小分子代谢过程 | 生物过程 |
GO:0022904 | 呼吸电子传递链 | 生物过程 |
GO:0044237 | 细胞代谢过程 | 生物过程 |
GO:0000276 | 线粒体质子转运ATP合酶复合物,偶联因子F(o) | 细胞组分 |
GO:0005753 | 线粒体质子转运ATP合成酶复合物 | 细胞组分 |
GO:0005743 | 线粒体内膜 | 细胞组分 |
GO:0016021 | 膜的组成部分 | 细胞组分 |
GO:0015078 | 氢离子跨膜转运蛋白活性 | 分子功能 |
GO:0022857 | 跨膜转运蛋白活性 | 分子功能 |
GO:0016887 | ATP酶活性 | 分子功能 |
GO ID | GO术语 | GO功能 |
---|---|---|
GO:0006200 | ATP分解代谢过程 | 生物过程 |
GO:0015986 | ATP合成偶联质子转运 | 生物过程 |
GO:0042776 | 线粒体ATP合成偶联质子转运 | 生物过程 |
GO:0044281 | 小分子代谢过程 | 生物过程 |
GO:0022904 | 呼吸电子传递链 | 生物过程 |
GO:0044237 | 细胞代谢过程 | 生物过程 |
GO:0005753 | 线粒体质子转运ATP合成酶复合物 | 细胞组分 |
GO:0000275 | 线粒体质子转运ATP合成酶复合物,催化核心F(1) | 细胞组分 |
GO:0005759 | 线粒体基质 | 细胞组分 |
GO:0022857 | 跨膜转运蛋白活性 | 分子功能 |
GO:0046933 | 质子转运ATP合成酶活性,旋转机制 | 分子功能 |
GO:0016887 | ATP酶活性 | 分子功能 |
GO:0046961 | 质子转运ATP酶活性,旋转机制 | 分子功能 |
lncRNA:长链非编码RNA。
基因 | 引物序列(5′—3′) | 产物长度(bp) |
---|---|---|
MT-ATP8 | F:ACAAACTACCACCTACCTCC | 103 |
R:GCAATGAATGAAGCGAACAG | ||
ATP5E | F:TTGGATGATGTTTGAAGCTGTC | 150 |
R:GCTTATCCTTTAGCAGTACGG | ||
GAPDH | F:TGTTGCCATCAATGACCCCTT | 201 |
R:CTCCACGACGTACTCAGCG |
lncRNAs | 引物序列(5′—3′) | 产物长度(bp) |
---|---|---|
ENST00000 624705.1 | F:CTTCACTCACATACGATATGCG | 118 |
R:AAGATGTTTATACTGCCTCGG | ||
ENST00000 621933.1 | F:AGACTCTGTTAATCAGCTTGC | 86 |
R:CTCCCACATAGGAGCTCAAA | ||
ENST00000 616950.1 | F:ATCTCCTCTCTCTCACATGTC | 105 |
R:CACTCATCCCGCAGGATA | ||
ENST00000 615535.1 | F:CGGAGCCTGAGAGGATTAT | 163 |
R:TGGTCTCGTCATCATCGG | ||
ENST00000 595748.1 | F:AGAGGTAATGGACTGTTGGAA | 109 |
R:CATATACATGCAAGTCACAGGG |
注:lncRNAs:长链非编码RNA。
lncRNA:长链非编码RNA。

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