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Analysis of the differential expression of circulating microRNAs during the progression of hepatic fibrosis in patients with chronic hepatitis B virus infection.

Zhang Q, Xu M, Qu Y, Li Z, Zhang Q, Cai X, Lu L - Mol Med Rep (2015)

Bottom Line: Finally, the target genes of the miRNAs were predicted and classified using gene ontology analysis.A total of 140 miRNAs were detected in the S1‑S4 patient groups, and their expression levels were >2‑fold higher compared with those in the S0 group.The numbers of miRNAs differentially expressed in the S1‑S4 patient groups were 48, 97, 84 and 56, respectively, with 12 miRNAs differentially expressed at all stages, 10 of which were upregulated and two of which were downregulated.

View Article: PubMed Central - PubMed

Affiliation: Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao‑Tong University School of Medicine, Shanghai 200080, P.R. China.

ABSTRACT
Considering the limitations of liver biopsy, reliable non‑invasive serum biomarkers of liver fibrosis are required for early diagnosis. The present study analyzed the expression profile of circulating micro (mi)RNAs during the development and progression of hepatic fibrosis in patients with chronic hepatitis B virus (HBV) infection, aiming to identify novel earlier diagnostic biomarkers. Fresh plasma samples were collected from 50 patients diagnosed with chronic HBV infection and hepatic fibrosis. These patients were classified into five groups (S0, S1, S2, S3 and S4; n=10 per group) based on Scheuer's staging criteria. The differential expression of the circulating miRNAs was determined by performing miRNA microarray hybridization. Finally, the target genes of the miRNAs were predicted and classified using gene ontology analysis. A total of 140 miRNAs were detected in the S1‑S4 patient groups, and their expression levels were >2‑fold higher compared with those in the S0 group. The numbers of miRNAs differentially expressed in the S1‑S4 patient groups were 48, 97, 84 and 56, respectively, with 12 miRNAs differentially expressed at all stages, 10 of which were upregulated and two of which were downregulated. The target genes of the miRNAs identified were found to be involved in 100 signal transduction pathways, the majority of which affected hepatic fibrosis via the TGF‑/Smad, Wnt, MAPK, Jak/STAT and VEGF pathways. The differential expression levels of miRNAs were closely associated with the staging of hepatic fibrosis. The results of the present study provide evidence to facilitate the development and application of non‑invasive biomarkers for earlier diagnosis of hepatic fibrosis.

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Determination of the GO molecular functions modulated by differentially expressed miRNAs in patients with hepatitis B virus infection and hepatic fibrosis. The target genes were selected based on the GO database. Each GO significance level and misjudgment rate was calculated using Fisher's exact test and a χ2 test (P<0.01). GO, gene ontology.
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f4-mmr-12-04-5647: Determination of the GO molecular functions modulated by differentially expressed miRNAs in patients with hepatitis B virus infection and hepatic fibrosis. The target genes were selected based on the GO database. Each GO significance level and misjudgment rate was calculated using Fisher's exact test and a χ2 test (P<0.01). GO, gene ontology.

Mentions: GO functional analysis revealed that the biological processes, with which the differentially expressed target gene was markedly involved included biopolymers, signal transduction, protein metabolism and lipid metabolism. The biological processes identified to have significant involvement of the differentially expressed target gene included molecule functional activation, transmembrane transport, phosphotransferase activity upgrade, binding with protein, purine nucleotide metabolism upgrade, peptidase activation, oxidoreductase activation, binding with L-amino acid peptidase and cytokine activation (Fig. 4).


Analysis of the differential expression of circulating microRNAs during the progression of hepatic fibrosis in patients with chronic hepatitis B virus infection.

Zhang Q, Xu M, Qu Y, Li Z, Zhang Q, Cai X, Lu L - Mol Med Rep (2015)

Determination of the GO molecular functions modulated by differentially expressed miRNAs in patients with hepatitis B virus infection and hepatic fibrosis. The target genes were selected based on the GO database. Each GO significance level and misjudgment rate was calculated using Fisher's exact test and a χ2 test (P<0.01). GO, gene ontology.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4581744&req=5

f4-mmr-12-04-5647: Determination of the GO molecular functions modulated by differentially expressed miRNAs in patients with hepatitis B virus infection and hepatic fibrosis. The target genes were selected based on the GO database. Each GO significance level and misjudgment rate was calculated using Fisher's exact test and a χ2 test (P<0.01). GO, gene ontology.
Mentions: GO functional analysis revealed that the biological processes, with which the differentially expressed target gene was markedly involved included biopolymers, signal transduction, protein metabolism and lipid metabolism. The biological processes identified to have significant involvement of the differentially expressed target gene included molecule functional activation, transmembrane transport, phosphotransferase activity upgrade, binding with protein, purine nucleotide metabolism upgrade, peptidase activation, oxidoreductase activation, binding with L-amino acid peptidase and cytokine activation (Fig. 4).

Bottom Line: Finally, the target genes of the miRNAs were predicted and classified using gene ontology analysis.A total of 140 miRNAs were detected in the S1‑S4 patient groups, and their expression levels were >2‑fold higher compared with those in the S0 group.The numbers of miRNAs differentially expressed in the S1‑S4 patient groups were 48, 97, 84 and 56, respectively, with 12 miRNAs differentially expressed at all stages, 10 of which were upregulated and two of which were downregulated.

View Article: PubMed Central - PubMed

Affiliation: Department of Gastroenterology, Shanghai First People's Hospital, Shanghai Jiao‑Tong University School of Medicine, Shanghai 200080, P.R. China.

ABSTRACT
Considering the limitations of liver biopsy, reliable non‑invasive serum biomarkers of liver fibrosis are required for early diagnosis. The present study analyzed the expression profile of circulating micro (mi)RNAs during the development and progression of hepatic fibrosis in patients with chronic hepatitis B virus (HBV) infection, aiming to identify novel earlier diagnostic biomarkers. Fresh plasma samples were collected from 50 patients diagnosed with chronic HBV infection and hepatic fibrosis. These patients were classified into five groups (S0, S1, S2, S3 and S4; n=10 per group) based on Scheuer's staging criteria. The differential expression of the circulating miRNAs was determined by performing miRNA microarray hybridization. Finally, the target genes of the miRNAs were predicted and classified using gene ontology analysis. A total of 140 miRNAs were detected in the S1‑S4 patient groups, and their expression levels were >2‑fold higher compared with those in the S0 group. The numbers of miRNAs differentially expressed in the S1‑S4 patient groups were 48, 97, 84 and 56, respectively, with 12 miRNAs differentially expressed at all stages, 10 of which were upregulated and two of which were downregulated. The target genes of the miRNAs identified were found to be involved in 100 signal transduction pathways, the majority of which affected hepatic fibrosis via the TGF‑/Smad, Wnt, MAPK, Jak/STAT and VEGF pathways. The differential expression levels of miRNAs were closely associated with the staging of hepatic fibrosis. The results of the present study provide evidence to facilitate the development and application of non‑invasive biomarkers for earlier diagnosis of hepatic fibrosis.

Show MeSH
Related in: MedlinePlus