Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients

Introduction: Helicobacter pylori could colonize the gastric mucosa and cause gastritis, ulcers and cancer. Numerous virulence factors have been identified in this bacterium that play important roles in promoting gastric disorders. Although the interaction of long noncoding RNAs (lncRNAs) with tran...

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Main Authors: Marzieh Ghanbarian, Ronak Bakhtiari, Seyedeh Zohre Mirbagheri, Fatemeh Rezaei, Abbas Rahimi Foroushani, Masoud Alebouyeh
Format: Article
Language:English
Published: The Journal of Infection in Developing Countries 2023-11-01
Series:Journal of Infection in Developing Countries
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Online Access:https://jidc.org/index.php/journal/article/view/17748
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author Marzieh Ghanbarian
Ronak Bakhtiari
Seyedeh Zohre Mirbagheri
Fatemeh Rezaei
Abbas Rahimi Foroushani
Masoud Alebouyeh
author_facet Marzieh Ghanbarian
Ronak Bakhtiari
Seyedeh Zohre Mirbagheri
Fatemeh Rezaei
Abbas Rahimi Foroushani
Masoud Alebouyeh
author_sort Marzieh Ghanbarian
collection DOAJ
description Introduction: Helicobacter pylori could colonize the gastric mucosa and cause gastritis, ulcers and cancer. Numerous virulence factors have been identified in this bacterium that play important roles in promoting gastric disorders. Although the interaction of long noncoding RNAs (lncRNAs) with transcription, processing, and translation of genes associated with different diseases are described, their interaction with the inflammatory genes and H. pylori infection in the gastric tissue is not well known. This study compared changes in common NF-κB-regulatory lncRNAs in the gastric tissue of H. pylori-infected and non-infected patients with gastritis. Moreover, a link between the virulence entity of the strains and the transcriptional changes was analyzed. Methodology: Two groups of infected and non-infected patients with chronic gastritis were included in the study. Genotyping of the H. pylori strains was done by PCR and relative changes in the expression of NF-κB and regulatory lncRNAs, lincRNA-p21, MALAT1, NKILA, were measured by relative quantitative real time-PCR. Results: Transcriptional levels of MALAT1, lincRNA-p21, and NKILA genes decreased in the infected patients compared with the non-infected patients, which was significantly linked with increased NF-κB gene expression. Our results showed that a hypervirulent strain of H. pylori with oipA“on”/HP-NAP+/iceA1+/iceA2+/vacA s1m1/s1m2+/cagA+ genotype can promote a higher level of NF-κB transcription in the inflamed tissue. Conclusions: H. pylori infection could promote down-regulation of lincRNA-p21, MALAT1 and NKILA in the infected gastric tissue in correlation with NF-κB upregulation. More detailed studies are needed to show a link between the virulence genes and their impact on the regulation of lncRNAs in the stomach.
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spelling doaj-art-56f6bf5fdf8742cf88cd4aae32ef61c12025-08-20T02:57:13ZengThe Journal of Infection in Developing CountriesJournal of Infection in Developing Countries1972-26802023-11-01171110.3855/jidc.17748Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patientsMarzieh Ghanbarian0Ronak Bakhtiari1Seyedeh Zohre Mirbagheri2Fatemeh Rezaei3Abbas Rahimi Foroushani4Masoud Alebouyeh5Department of Pathobiology, School of Public Health and Institute Health Research, Tehran University of Medical Sciences, Tehran, IranDepartment of Pathobiology, School of Public Health and Institute Health Research, Tehran University of Medical Sciences, Tehran, IranDepartment of Pathobiology, School of Public Health and Institute Health Research, Tehran University of Medical Sciences, Tehran, IranDepartment of Pathobiology, School of Public Health and Institute Health Research, Tehran University of Medical Sciences, Tehran, IranDepartment of Epidemiology and Biostatistics, School of Public Health and Institute Health Research, Tehran University of Medical Sciences, Tehran, IranPediatric Infections Research Centre, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran Introduction: Helicobacter pylori could colonize the gastric mucosa and cause gastritis, ulcers and cancer. Numerous virulence factors have been identified in this bacterium that play important roles in promoting gastric disorders. Although the interaction of long noncoding RNAs (lncRNAs) with transcription, processing, and translation of genes associated with different diseases are described, their interaction with the inflammatory genes and H. pylori infection in the gastric tissue is not well known. This study compared changes in common NF-κB-regulatory lncRNAs in the gastric tissue of H. pylori-infected and non-infected patients with gastritis. Moreover, a link between the virulence entity of the strains and the transcriptional changes was analyzed. Methodology: Two groups of infected and non-infected patients with chronic gastritis were included in the study. Genotyping of the H. pylori strains was done by PCR and relative changes in the expression of NF-κB and regulatory lncRNAs, lincRNA-p21, MALAT1, NKILA, were measured by relative quantitative real time-PCR. Results: Transcriptional levels of MALAT1, lincRNA-p21, and NKILA genes decreased in the infected patients compared with the non-infected patients, which was significantly linked with increased NF-κB gene expression. Our results showed that a hypervirulent strain of H. pylori with oipA“on”/HP-NAP+/iceA1+/iceA2+/vacA s1m1/s1m2+/cagA+ genotype can promote a higher level of NF-κB transcription in the inflamed tissue. Conclusions: H. pylori infection could promote down-regulation of lincRNA-p21, MALAT1 and NKILA in the infected gastric tissue in correlation with NF-κB upregulation. More detailed studies are needed to show a link between the virulence genes and their impact on the regulation of lncRNAs in the stomach. https://jidc.org/index.php/journal/article/view/17748Helicobacter pylorilncRNANF-κBchronic gastritis
spellingShingle Marzieh Ghanbarian
Ronak Bakhtiari
Seyedeh Zohre Mirbagheri
Fatemeh Rezaei
Abbas Rahimi Foroushani
Masoud Alebouyeh
Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
Journal of Infection in Developing Countries
Helicobacter pylori
lncRNA
NF-κB
chronic gastritis
title Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
title_full Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
title_fullStr Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
title_full_unstemmed Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
title_short Transcriptional alteration of NF-κB-associated long noncoding RNAs in the stomach of Helicobacter pylori-infected and non-infected patients
title_sort transcriptional alteration of nf κb associated long noncoding rnas in the stomach of helicobacter pylori infected and non infected patients
topic Helicobacter pylori
lncRNA
NF-κB
chronic gastritis
url https://jidc.org/index.php/journal/article/view/17748
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