Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics

Introduction Severe early childhood caries (S-ECC) is a widespread disease that harms children physically and mentally. Microorganisms are regarded as the dominant etiology of caries, however, S-ECC microbiome remains largely unknown, nearly 1/4 of them remained uncultivated. To explore S-ECC microb...

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Main Authors: Yixin Zhang, Yang Chen, Chang Diao, Haojie Lin, Jingqi Zhu, Ruiqing Sun, Meng Wang, Yuke Chen, Hanzhang Zhou, Zixi Dong, Bin Xia, Yixiang Wang
Format: Article
Language:English
Published: PeerJ Inc. 2024-11-01
Series:PeerJ
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Online Access:https://peerj.com/articles/18312.pdf
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author Yixin Zhang
Yang Chen
Chang Diao
Haojie Lin
Jingqi Zhu
Ruiqing Sun
Meng Wang
Yuke Chen
Hanzhang Zhou
Zixi Dong
Bin Xia
Yixiang Wang
author_facet Yixin Zhang
Yang Chen
Chang Diao
Haojie Lin
Jingqi Zhu
Ruiqing Sun
Meng Wang
Yuke Chen
Hanzhang Zhou
Zixi Dong
Bin Xia
Yixiang Wang
author_sort Yixin Zhang
collection DOAJ
description Introduction Severe early childhood caries (S-ECC) is a widespread disease that harms children physically and mentally. Microorganisms are regarded as the dominant etiology of caries, however, S-ECC microbiome remains largely unknown, nearly 1/4 of them remained uncultivated. To explore S-ECC microbiota, a new bacterial medium, nutrient-enriched microbiological medium (NEMM) was designed in this study. Methods Eleven fresh S-ECC dental plaque samples were collected and cultivated in both NEMM and SHI medium (reference medium) for 0, 1, 3, 6, 9, 15, 21 and 28 days under aerobic and anaerobic conditions. Thereafter, the cultures were harvested, together with their corresponding clinical S-ECC dental plaque samples, for high through-put 16S rRNA sequencing and culturomics. The single colonies were cultured for further confirmation by sequencing the full length of the 16S rRNA gene after bacterial genomic DNA extraction and PCR amplification. Results Either NEMM or SHI medium showed a significant decrease in bacterial alpha diversity compared to clinical dental plaque samples by high throughput 16S rRNA sequencing analysis, indicating a larger room for the improvement of both media. NEMM displayed more living bacteria, abundant bacteria species, uncultured bacteria and capacities in carbohydrate transport and metabolism than SHI medium. The dynamic changes in bacterial community composition over time indicated that some bacteria tended to be enriched at specific time points. Culturomics and identification of bacterial species results were further confirmed by the high throughput 16S rRNA sequencing results. Conclusion We developed a new medium NEMM that could support S-ECC microbiota growth with a higher yield of living bacteria, higher abundance and capacity, and be suitable for cultivating oral uncultured bacteria via culturomics technology.
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spelling doaj-art-df94f9ec47484da380d807a333b4e41b2024-11-30T15:05:13ZengPeerJ Inc.PeerJ2167-83592024-11-0112e1831210.7717/peerj.18312Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomicsYixin Zhang0Yang Chen1Chang Diao2Haojie Lin3Jingqi Zhu4Ruiqing Sun5Meng Wang6Yuke Chen7Hanzhang Zhou8Zixi Dong9Bin Xia10Yixiang Wang11Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, ChinaDepartment of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaDepartment of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, ChinaCentral Laboratory, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaEducation Department, Peking University School and Hospital of Stomatology, Beijing, ChinaDepartment of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, ChinaCentral Laboratory, Peking University School and Hospital of Stomatology, Beijing, ChinaIntroduction Severe early childhood caries (S-ECC) is a widespread disease that harms children physically and mentally. Microorganisms are regarded as the dominant etiology of caries, however, S-ECC microbiome remains largely unknown, nearly 1/4 of them remained uncultivated. To explore S-ECC microbiota, a new bacterial medium, nutrient-enriched microbiological medium (NEMM) was designed in this study. Methods Eleven fresh S-ECC dental plaque samples were collected and cultivated in both NEMM and SHI medium (reference medium) for 0, 1, 3, 6, 9, 15, 21 and 28 days under aerobic and anaerobic conditions. Thereafter, the cultures were harvested, together with their corresponding clinical S-ECC dental plaque samples, for high through-put 16S rRNA sequencing and culturomics. The single colonies were cultured for further confirmation by sequencing the full length of the 16S rRNA gene after bacterial genomic DNA extraction and PCR amplification. Results Either NEMM or SHI medium showed a significant decrease in bacterial alpha diversity compared to clinical dental plaque samples by high throughput 16S rRNA sequencing analysis, indicating a larger room for the improvement of both media. NEMM displayed more living bacteria, abundant bacteria species, uncultured bacteria and capacities in carbohydrate transport and metabolism than SHI medium. The dynamic changes in bacterial community composition over time indicated that some bacteria tended to be enriched at specific time points. Culturomics and identification of bacterial species results were further confirmed by the high throughput 16S rRNA sequencing results. Conclusion We developed a new medium NEMM that could support S-ECC microbiota growth with a higher yield of living bacteria, higher abundance and capacity, and be suitable for cultivating oral uncultured bacteria via culturomics technology.https://peerj.com/articles/18312.pdfNEMMSHI mediumMicrobiotaS-ECCCulturomicsNovel microbiological medium
spellingShingle Yixin Zhang
Yang Chen
Chang Diao
Haojie Lin
Jingqi Zhu
Ruiqing Sun
Meng Wang
Yuke Chen
Hanzhang Zhou
Zixi Dong
Bin Xia
Yixiang Wang
Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
PeerJ
NEMM
SHI medium
Microbiota
S-ECC
Culturomics
Novel microbiological medium
title Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
title_full Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
title_fullStr Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
title_full_unstemmed Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
title_short Exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium, high through-put 16S rRNA sequencing and culturomics
title_sort exploration of severe early childhood caries microbiota through a novel developed nutrient enriched microbiological medium high through put 16s rrna sequencing and culturomics
topic NEMM
SHI medium
Microbiota
S-ECC
Culturomics
Novel microbiological medium
url https://peerj.com/articles/18312.pdf
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