The Collaborative Cross-Mouse Population for Studying Genetic Determinants Underlying Alveolar Bone Loss Due to Polymicrobial Synergy and Dysbiosis

Aysar Nashef, Rawan Qabaja, Ronen Hazan, Arne Schafer, Hatice Hasturk, Alpdogan Kantarci, Yael Houri-Haddad, Fuad A. Iraqi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Dysbiosis of oral microbiota is associated with the initiation and progression of periodontitis. The cause-and-effect relationship between genetics, periodontitis, and oral microbiome dysbiosis is poorly understood. Here, we demonstrate the power of the collaborative cross (CC) mice model to assess the effect of the genetic background on microbiome diversity shifts during periodontal infection and host suitability status. We examined the bacterial composition in plaque samples from seven different CC lines using 16s rRNA sequencing before and during periodontal infection. The susceptibility/resistance of the CC lines to alveolar bone loss was determined using the micro-CT technique. A total of 53 samples (7 lines) were collected before and after oral infection using oral swaps followed by DNA extraction and 16 s rRNA sequencing analysis. CC lines showed a significant variation in response to the co-infection (p < 0.05). Microbiome compositions were significantly different before and after infection and between resistant and susceptible lines to periodontitis (p < 0.05). Gram-positive taxa were significantly higher at the resistant lines compared to susceptible lines (p < 0.05). Gram-positive bacteria were reduced after infection, and gram-negative bacteria, specifically anaerobic groups, increased after infection. Our results demonstrate the utility of the CC mice in exploring the interrelationship between genetic background, microbiome composition, and periodontitis.

Original languageAmerican English
Article number473
JournalInternational Journal of Molecular Sciences
Volume25
Issue number1
DOIs
StatePublished - 29 Dec 2023

Bibliographical note

Publisher Copyright:
© 2023 by the authors.

Keywords

  • 16srRNA sequencing
  • collaborative cross (CC) mouse
  • computerized microtomography (micro-CT)
  • dysbiosis
  • microbiome
  • periodontitis

Fingerprint

Dive into the research topics of 'The Collaborative Cross-Mouse Population for Studying Genetic Determinants Underlying Alveolar Bone Loss Due to Polymicrobial Synergy and Dysbiosis'. Together they form a unique fingerprint.

Cite this