Gingival tissue autophagy pathway gene expression profiles in periodontitis and aging.
Jeffrey L EbersoleSreenatha KirakoduMichael J NovakDolph DawsonArnold J StrombergLuis OrracaJanis Gonzalez-MartinezArmando BurgosOctavio A GonzalezPublished in: Journal of periodontal research (2020)
Comparison of expression levels with adult healthy tissues demonstrated a rather limited number of individual genes that were significantly different across the age-groups. In contrast, with periodontitis in the adults and aged animals, about 15% of the genes were significantly increased or decreased. The differences were reflected in the mTOR complex (5/12), ULK1/ATG1 complex (5/9), PI3K complex (5/21), ATG9 complex (2/7), ATG12 conjugation/LC3 lipidation (7/22), and lysosome fusion/vesicle degradation [LF/VD (5/10)] activities within the broader autophagic pathway. The genes most greatly altered in gingival tissues of naturally occurring periodontitis were identified in the ATG12 and LF/VD pathways that approximated 50% of the genes in each of those categories. While healthy gingival aging did not appear to reflect altered autophagy gene expression, substantial differences were noted with periodontitis irrespective of the age of the animals. Future studies into the role of autophagy in periodontitis and could offer potential new therapeutic strategies to prevent and/or treat periodontal disease.
Keyphrases
- gene expression
- cell death
- genome wide
- dna methylation
- endoplasmic reticulum stress
- bioinformatics analysis
- genome wide identification
- signaling pathway
- poor prognosis
- magnetic resonance
- mass spectrometry
- computed tomography
- cell proliferation
- current status
- transcription factor
- binding protein
- risk assessment
- young adults
- high resolution
- fluorescent probe
- human health
- liquid chromatography
- high resolution mass spectrometry