The Cytoprotective and Cytotoxic Functions of Autophagy in Response to mTOR Inhibitors.
Front Biosci (Landmark Ed)
; 29(6): 231, 2024 Jun 24.
Article
in En
| MEDLINE
| ID: mdl-38940039
ABSTRACT
The inhibitors of mammalian target of rapapmycin (mTOR), everolimus, temsirolimus and rapamycin, have a wide range of clinical utility; however, as is inevitably the case with other chemotherapeutic agents, resistance development constrains their effectiveness. One putative mechanism of resistance is the promotion of autophagy, which is a direct consequence of the inhibition of the mTOR signaling pathway. Autophagy is primarily considered to be a cytoprotective survival mechanism, whereby cytoplasmic components are recycled to generate energy and metabolic intermediates. The autophagy induced by everolimus and temsirolimus appears to play a largely protective function, whereas a cytotoxic function appears to predominate in the case of rapamycin. In this review we provide an overview of the autophagy induced in response to mTOR inhibitors in different tumor models in an effort to determine whether autophagy targeting could be of clinical utility as adjuvant therapy in association with mTOR inhibition.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Autophagy
/
TOR Serine-Threonine Kinases
/
MTOR Inhibitors
Limits:
Animals
/
Humans
Language:
En
Journal:
Front Biosci (Landmark Ed)
Year:
2024
Document type:
Article