Back to Search
Start Over
Comparative analysis of microbial sensing molecules in mucosal tissues with aging
- Source :
- Immunobiology. 223:279-287
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Host-bacterial interactions at mucosal surfaces require recognition of the bacteria by host cells enabling targeted responses to maintain tissue homeostasis. It is now well recognized that an array of host-derived pattern recognition receptors (PRRs), both cell-bound and soluble, are critical to innate immune engagement of microbes via microbial-associated molecular patterns (MAMP). This report describes the use of a nonhuman primate model to evaluate changes in the expression of these sensing molecules related to aging in healthy gingival tissues. Macaca mulatta aged 3–24 years were evaluated clinically and gingival tissues obtained, RNA isolated and microarray analysis conducted for gene expression of the sensing pattern recognition receptors (PRRs). The results demonstrated increased expression of various PRRs in healthy aging gingiva including extracellular (CD14, CD209, CLEC4E, TLR4), intracellular (NAIP, IFIH1, DAI) and soluble (PTX4, SAA1) PRRs. Selected PRRs were also correlated with both bleeding on probing (BOP) and pocket depth (PD) in the animals. These findings suggest that aged animals express altered levels of various PRRs that could affect the ability of the tissues to interact effectively with the juxtaposed microbial ecology, presumably contributing to an enhanced risk of periodontitis even in clinically healthy oral mucosal tissues with aging.
- Subjects :
- 0301 basic medicine
Aging
animal diseases
CD14
Immunology
Gingiva
Biology
Article
03 medical and health sciences
0302 clinical medicine
medicine
Animals
Homeostasis
Humans
Immunology and Allergy
Periodontitis
MAMP
Tissue homeostasis
Innate immune system
Microarray analysis techniques
Pathogen-Associated Molecular Pattern Molecules
Mouth Mucosa
Pattern recognition receptor
030206 dentistry
Hematology
Microarray Analysis
medicine.disease
Gingivitis
Macaca mulatta
030104 developmental biology
Receptors, Pattern Recognition
Host-Pathogen Interactions
Models, Animal
NAIP
Transcriptome
Subjects
Details
- ISSN :
- 01712985
- Volume :
- 223
- Database :
- OpenAIRE
- Journal :
- Immunobiology
- Accession number :
- edsair.doi.dedup.....13fed4b0120971ad098ce18dd9ea59a9