Cellular parabiosis and the latency of age-related diseases.
cellular dysfunction
cellular parabiosis
intercellular molecular traffic
Journal
Open biology
ISSN: 2046-2441
Titre abrégé: Open Biol
Pays: England
ID NLM: 101580419
Informations de publication
Date de publication:
29 03 2019
29 03 2019
Historique:
entrez:
28
3
2019
pubmed:
28
3
2019
medline:
24
3
2020
Statut:
ppublish
Résumé
Cellular parabiosis is tissue-based phenotypic suppression of cellular dysfunction by intercellular molecular traffic keeping initiated age-related diseases and conditions in long latency. Interruption of cellular parabiosis (e.g. by chronic inflammation) promotes the onset of initiated pathologies. The stability of initiated latent cancers and other age-related diseases (ARD) hints to phenotypically silent genome alterations. I propose that latency in the onset of ageing and ARD is largely due to phenotypic suppression of cellular dysfunctions via molecular traffic among neighbouring cells. Intercellular trafficking ranges from the transfer of ions and metabolites (via gap junctions) to entire organelles (via tunnelling nanotubes). Any mechanism of cell-to-cell communication resulting in functional cross-complementation among the cells is called cellular parabiosis. Such 'cellular solidarity' creates tissue homeostasis by buffering defects and averaging cellular functions within the tissues. Chronic inflammation is known to (i) interrupt cellular parabiosis by the activity of extracellular proteases, (ii) activate dormant pathologies and (iii) shorten disease latency, as in tumour promotion and inflammaging. Variation in cellular parabiosis and protein oxidation can account for interspecies correlations between body mass, ARD latency and longevity. Now, prevention of ARD onset by phenotypic suppression, and healing by phenotypic reversion, become conceivable.
Identifiants
pubmed: 30914007
doi: 10.1098/rsob.180250
pmc: PMC6451360
doi:
Substances chimiques
Reactive Oxygen Species
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
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