P>In this work we report that carnitines, in particular acetyl-l-carnitine (ALC), are able to prolong the chronological aging of yeast cells during the stationary phase. Lifespan extension is significantly reduced in yca1 mutants as well in rho0 strains, suggesting that the protective effects pass through the Yca1 caspase and mitochondrial functions. ALC can also prevent apoptosis in pro-apoptotic mutants, pointing to the importance of mitochondrial functions in regulating yeast apoptosis and aging. We also demonstrate that ALC attenuates mitochondrial fission in aged yeast cells, indicating a correlation between its protective effect and this process. Our findings suggest that ALC, used as therapeutic for stroke, myocardial infarction and neurodegenerative diseases, besides the well-known anti-oxidant effects, might exert protective effects also acting on mitochondrial morphology.

Acetyl-L-carnitine protects yeast cells from apoptosis and aging and inhibits mitochondrial fission / Palermo, Vanessa; Falcone, Claudio; Menotti, Calvani; Mazzoni, Cristina. - In: AGING CELL. - ISSN 1474-9718. - 9:4(2010), pp. 570-579. [10.1111/j.1474-9726.2010.00587.x]

Acetyl-L-carnitine protects yeast cells from apoptosis and aging and inhibits mitochondrial fission.

PALERMO, Vanessa;FALCONE, Claudio;MAZZONI, Cristina
2010

Abstract

P>In this work we report that carnitines, in particular acetyl-l-carnitine (ALC), are able to prolong the chronological aging of yeast cells during the stationary phase. Lifespan extension is significantly reduced in yca1 mutants as well in rho0 strains, suggesting that the protective effects pass through the Yca1 caspase and mitochondrial functions. ALC can also prevent apoptosis in pro-apoptotic mutants, pointing to the importance of mitochondrial functions in regulating yeast apoptosis and aging. We also demonstrate that ALC attenuates mitochondrial fission in aged yeast cells, indicating a correlation between its protective effect and this process. Our findings suggest that ALC, used as therapeutic for stroke, myocardial infarction and neurodegenerative diseases, besides the well-known anti-oxidant effects, might exert protective effects also acting on mitochondrial morphology.
mitochondria; s; apoptosis; carnitine; cerevisiae; s. cerevisiae; aging
01 Pubblicazione su rivista::01a Articolo in rivista
Acetyl-L-carnitine protects yeast cells from apoptosis and aging and inhibits mitochondrial fission / Palermo, Vanessa; Falcone, Claudio; Menotti, Calvani; Mazzoni, Cristina. - In: AGING CELL. - ISSN 1474-9718. - 9:4(2010), pp. 570-579. [10.1111/j.1474-9726.2010.00587.x]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/230065
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