High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice

Abstract Background To investigate the differences in bacterial and fungal community structure and diversity in conjunctival tissue of healthy and diabetic mice. Methods RNA-seq assays and high-throughput sequencing of bacterial 16 S rDNA and fungal internal transcribed spacer (ITS) gene sequences w...

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Main Authors: Fengjiao Li, Shuo Yang, Ji Ma, Xiaowen Zhao, Meng Chen, Ye Wang
Format: Article
Language:English
Published: BMC 2024-03-01
Series:BMC Microbiology
Subjects:
Online Access:https://doi.org/10.1186/s12866-024-03247-y
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author Fengjiao Li
Shuo Yang
Ji Ma
Xiaowen Zhao
Meng Chen
Ye Wang
author_facet Fengjiao Li
Shuo Yang
Ji Ma
Xiaowen Zhao
Meng Chen
Ye Wang
author_sort Fengjiao Li
collection DOAJ
description Abstract Background To investigate the differences in bacterial and fungal community structure and diversity in conjunctival tissue of healthy and diabetic mice. Methods RNA-seq assays and high-throughput sequencing of bacterial 16 S rDNA and fungal internal transcribed spacer (ITS) gene sequences were used to identify differentially expressed host genes and fungal composition profiles in conjunctival tissues of diabetic BKS-db/db mice and BKS (control) mice. Functional enrichment analysis of differentially expressed genes and the correlation between the relative abundance of bacterial and fungal taxa in the intestinal mucosa were also performed. Results Totally, 449 differential up-regulated genes and 1,006 down-regulated genes were identified in the conjunctival tissues of diabetic mice. The differentially expressed genes were mainly enriched in metabolism-related functions and pathways. A decrease in conjunctival bacterial species diversity and abundance in diabetic mice compared to control mice. In contrast, fungal species richness and diversity were not affected by diabetes. The microbial colonies were mainly associated with cellular process pathways regulating carbohydrate and lipid metabolism, as well as cell growth and death. Additionally, some interactions between bacteria and fungi at different taxonomic levels were also observed. Conclusion The present study revealed significant differences in the abundance and composition of bacterial and fungal communities in the conjunctival tissue of diabetic mice compared to control mice. The study also highlighted interactions between bacteria and fungi at different taxonomic levels. These findings may have implications for the diagnosis and treatment of diabetes.
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spelling doaj.art-86a3d02bab7d42d3859085359bcb13202024-03-17T12:17:21ZengBMCBMC Microbiology1471-21802024-03-0124111710.1186/s12866-024-03247-yHigh-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic miceFengjiao Li0Shuo Yang1Ji Ma2Xiaowen Zhao3Meng Chen4Ye Wang5Department of Opthalmology, Shandong Provincial Hospital Affiliated to Shandong First Medical UniversityEye Center, Second Affiliated Hospital, School of Medicine, Zhejiang UniversityCore Laboratory, The Affiliated Qingdao Central Hospital of Qingdao UniversityCore Laboratory, The Affiliated Qingdao Central Hospital of Qingdao UniversityDepartment of Opthalmology, Qingdao municipal hospital, Qingdao Municipal HospitalCore Laboratory, The Affiliated Qingdao Central Hospital of Qingdao UniversityAbstract Background To investigate the differences in bacterial and fungal community structure and diversity in conjunctival tissue of healthy and diabetic mice. Methods RNA-seq assays and high-throughput sequencing of bacterial 16 S rDNA and fungal internal transcribed spacer (ITS) gene sequences were used to identify differentially expressed host genes and fungal composition profiles in conjunctival tissues of diabetic BKS-db/db mice and BKS (control) mice. Functional enrichment analysis of differentially expressed genes and the correlation between the relative abundance of bacterial and fungal taxa in the intestinal mucosa were also performed. Results Totally, 449 differential up-regulated genes and 1,006 down-regulated genes were identified in the conjunctival tissues of diabetic mice. The differentially expressed genes were mainly enriched in metabolism-related functions and pathways. A decrease in conjunctival bacterial species diversity and abundance in diabetic mice compared to control mice. In contrast, fungal species richness and diversity were not affected by diabetes. The microbial colonies were mainly associated with cellular process pathways regulating carbohydrate and lipid metabolism, as well as cell growth and death. Additionally, some interactions between bacteria and fungi at different taxonomic levels were also observed. Conclusion The present study revealed significant differences in the abundance and composition of bacterial and fungal communities in the conjunctival tissue of diabetic mice compared to control mice. The study also highlighted interactions between bacteria and fungi at different taxonomic levels. These findings may have implications for the diagnosis and treatment of diabetes.https://doi.org/10.1186/s12866-024-03247-yHigh-throughput sequencingDiabetes mellitusConjunctival tissueMicrobial communityDiversity
spellingShingle Fengjiao Li
Shuo Yang
Ji Ma
Xiaowen Zhao
Meng Chen
Ye Wang
High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
BMC Microbiology
High-throughput sequencing
Diabetes mellitus
Conjunctival tissue
Microbial community
Diversity
title High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
title_full High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
title_fullStr High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
title_full_unstemmed High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
title_short High-throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
title_sort high throughput sequencing reveals differences in microbial community structure and diversity in the conjunctival tissue of healthy and type 2 diabetic mice
topic High-throughput sequencing
Diabetes mellitus
Conjunctival tissue
Microbial community
Diversity
url https://doi.org/10.1186/s12866-024-03247-y
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