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Mechanisms that Link Chronological Aging to Cellular Quiescence in Budding Yeast.

Author(s): Mohammad K, Baratang Junio JA, Tafakori T, Orfanos E, Titorenko VI

Int J Mol Sci. 2020 Jul 02;21(13): Authors: Mohammad K, Baratang Junio JA, Tafakori T, Orfanos E, Titorenko VI

Article GUID: 32630624
Discovery of fifteen new geroprotective plant extracts and identification of cellular processes they affect to prolong the chronological lifespan of budding yeast.

Author(s): Dakik P, Rodriguez MEL, Junio JAB, Mitrofanova D, Medkour Y, Tafakori T, Taifour T, Lutchman V, Samson E, Arlia-Ciommo A, Rukundo B, Simard ...

Oncotarget. 2020 Jun 09;11(23):2182-2203 Authors: Dakik P, Rodriguez MEL, Junio JAB, Mitrofanova D, Medkour Y, Tafakori T, Taifour T, Lutchman V, Samson E, Arlia-Ciommo A, Rukundo B, Simard É...

Article GUID: 32577164
Mechanisms by which PE21, an extract from the white willow Salix alba, delays chronological aging in budding yeast.

Author(s): Medkour Y, Mohammad K, Arlia-Ciommo A, Svistkova V, Dakik P, Mitrofanova D, Rodriguez MEL, Junio JAB, Taifour T, Escudero P, Goltsios FF, So...

Oncotarget. 2019 Oct 08;10(56):5780-5816 Authors: Medkour Y, Mohammad K, Arlia-Ciommo A, Svistkova V, Dakik P, Mitrofanova D, Rodriguez MEL, Junio JAB, Taifour T, Escudero P, Goltsios FF, Soodbakh...

Article GUID: 31645900
Aging and Age-related Disorders: From Molecular Mechanisms to Therapies.

Author(s): Titorenko VI

Int J Mol Sci. 2019 Jul 03;20(13): Authors: Titorenko VI

Article GUID: 31277345
Metabolomic and lipidomic analyses of chronologically aging yeast.

Author(s): Richard VR, Bourque SD, Titorenko VI

Methods Mol Biol. 2014;1205:359-73 Authors: Richard VR, Bourque SD, Titorenko VI

Article GUID: 25213255
Lithocholic bile acid accumulated in yeast mitochondria orchestrates a development of an anti-aging cellular pattern by causing age-related changes in cellular proteome.

Author(s): Beach A, Richard VR, Bourque S, Boukh-Viner T, Kyryakov P, Gomez-Perez A, Arlia-Ciommo A, Feldman R, Leonov A, Piano A, Svistkova V, Titorenko VI

Cell Cycle. 2015;14(11):1643-56 Authors: Beach A, Richard VR, Bourque S, Boukh-Viner T, Kyryakov P, Gomez-Perez A, Arlia-Ciommo A, Feldman R, Leonov A, Piano A, Svistkova V, Titorenko VI

Article GUID: 25839782
Diindolylmethane and its halogenated derivatives induce protective autophagy in human prostate cancer cells via induction of the oncogenic protein AEG-1 and activation of AMP-activated protein kinase (AMPK).

Author(s): Draz H, Goldberg AA, Titorenko VI, Tomlinson Guns ES, Safe SH, Sanderson JT

Cell Signal. 2017 12;40:172-182 Authors: Draz H, Goldberg AA, Titorenko VI, Tomlinson Guns ES, Safe SH, Sanderson JT

Article GUID: 28923415
Lipid metabolism and transport define longevity of the yeast Saccharomyces cerevisiae.

Author(s): Mitrofanova D, Dakik P, McAuley M, Medkour Y, Mohammad K, Titorenko VI

Front Biosci (Landmark Ed). 2018 Jan 01;23:1166-1194 Authors: Mitrofanova D, Dakik P, McAuley M, Medkour Y, Mohammad K, Titorenko VI

Article GUID: 28930594
Caloric restriction extends yeast chronological lifespan via a mechanism linking cellular aging to cell cycle regulation, maintenance of a quiescent state, entry into a non-quiescent state and survival in the non-quiescent state.

Author(s): Leonov A, Feldman R, Piano A, Arlia-Ciommo A, Lutchman V, Ahmadi M, Elsaser S, Fakim H, Heshmati-Moghaddam M, Hussain A, Orfali S, Rajen H, ...

Oncotarget. 2017 Sep 19;8(41):69328-69350 Authors: Leonov A, Feldman R, Piano A, Arlia-Ciommo A, Lutchman V, Ahmadi M, Elsaser S, Fakim H, Heshmati-Moghaddam M, Hussain A, Orfali S, Rajen H, Roofi...

Article GUID: 29050207
Some Metabolites Act as Second Messengers in Yeast Chronological Aging.

Author(s): Mohammad K, Dakik P, Medkour Y, McAuley M, Mitrofanova D, Titorenko VI

Int J Mol Sci. 2018 Mar 15;19(3): Authors: Mohammad K, Dakik P, Medkour Y, McAuley M, Mitrofanova D, Titorenko VI

Article GUID: 29543708
Yeast Cells Exposed to Exogenous Palmitoleic Acid Either Adapt to Stress and Survive or Commit to Regulated Liponecrosis and Die.

Author(s): Mohammad K, Dakik P, Medkour Y, McAuley M, Mitrofanova D, Titorenko VI

Oxid Med Cell Longev. 2018;2018:3074769 Authors: Mohammad K, Dakik P, Medkour Y, McAuley M, Mitrofanova D, Titorenko VI

Article GUID: 29636840
Caloric restriction delays yeast chronological aging by remodeling carbohydrate and lipid metabolism, altering peroxisomal and mitochondrial functionalities, and postponing the onsets of apoptotic and liponecrotic modes of regulated cell death.

Author(s): Arlia-Ciommo A, Leonov A, Beach A, Richard VR, Bourque SD, Burstein MT, Kyryakov P, Gomez-Perez A, Koupaki O, Feldman R, Titorenko VI

Oncotarget. 2018 Mar 23;9(22):16163-16184 Authors: Arlia-Ciommo A, Leonov A, Beach A, Richard VR, Bourque SD, Burstein MT, Kyryakov P, Gomez-Perez A, Koupaki O, Feldman R, Titorenko VI

Article GUID: 29662634
Yeast chronological aging is linked to cell cycle regulation.

Author(s): Mohammad K, Titorenko VI

Cell Cycle. 2018;17(9):1035-1036 Authors: Mohammad K, Titorenko VI PMID: 29895227 [PubMed - in process]

Article GUID: 29895227
Molecular and Cellular Mechanisms of Aging and Age-related Disorders.

Author(s): Titorenko VI

Int J Mol Sci. 2018 Jul 14;19(7): Authors: Titorenko VI PMID: 30011889 [PubMed - indexed for MEDLINE]

Article GUID: 30011889
Mechanisms through which lithocholic acid delays yeast chronological aging under caloric restriction conditions.

Author(s): Arlia-Ciommo A, Leonov A, Mohammad K, Beach A, Richard VR, Bourque SD, Burstein MT, Goldberg AA, Kyryakov P, Gomez-Perez A, Koupaki O, Titorenko VI

Oncotarget. 2018 Oct 09;9(79):34945-34971 Authors: Arlia-Ciommo A, Leonov A, Mohammad K, Beach A, Richard VR, Bourque SD, Burstein MT, Goldberg AA, Kyryakov P, Gomez-Perez A, Koupaki O, Titorenko VI

Article GUID: 30405886
Pairwise combinations of chemical compounds that delay yeast chronological aging through different signaling pathways display synergistic effects on the extent of aging delay.

Author(s): Dakik P, McAuley M, Chancharoen M, Mitrofanova D, Lozano Rodriguez ME, Baratang Junio JA, Lutchman V, Cortes B, Simard É, Titorenko VI

Oncotarget. 2019 Jan 08;10(3):313-338 Authors: Dakik P, McAuley M, Chancharoen M, Mitrofanova D, Lozano Rodriguez ME, Baratang Junio JA, Lutchman V, Cortes B, Simard É, Titorenko VI

Article GUID: 30719227
Quiescence Entry, Maintenance, and Exit in Adult Stem Cells.

Author(s): Mohammad K, Dakik P, Medkour Y, Mitrofanova D, Titorenko VI

Int J Mol Sci. 2019 May 01;20(9): Authors: Mohammad K, Dakik P, Medkour Y, Mitrofanova D, Titorenko VI

Article GUID: 31052375
Mechanisms Through Which Some Mitochondria-Generated Metabolites Act as Second Messengers That Are Essential Contributors to the Aging Process in Eukaryotes Across Phyla.

Author(s): Dakik P, Medkour Y, Mohammad K, Titorenko VI

Front Physiol. 2019;10:461 Authors: Dakik P, Medkour Y, Mohammad K, Titorenko VI

Article GUID: 31057428
Title:Mechanisms by which PE21, an extract from the white willow Salix alba, delays chronological aging in budding yeast.
Authors:Medkour Y,  Mohammad K,  Arlia-Ciommo A,  Svistkova V,  Dakik P,  Mitrofanova D,  Rodriguez MEL,  Junio JAB,  Taifour T,  Escudero P,  Goltsios FF,  Soodbakhsh S,  Maalaoui H,  Simard É,  Titorenko VI
Link:https://www.ncbi.nlm.nih.gov/pubmed/31645900?dopt=Abstract
DOI:10.18632/oncotarget.27209
Category:Oncotarget
PMID:31645900
Dept Affiliation: BIOLOGY
1 Department of Biology, Concordia University, Montreal, Quebec H4B 1R6, Canada.
2 Idunn Technologies Inc., Rosemere, Quebec J7A 4A5, Canada.

Description:

Mechanisms by which PE21, an extract from the white willow Salix alba, delays chronological aging in budding yeast.

Oncotarget. 2019 Oct 08;10(56):5780-5816

Authors: Medkour Y, Mohammad K, Arlia-Ciommo A, Svistkova V, Dakik P, Mitrofanova D, Rodriguez MEL, Junio JAB, Taifour T, Escudero P, Goltsios FF, Soodbakhsh S, Maalaoui H, Simard É, Titorenko VI

Abstract

We have recently found that PE21, an extract from the white willow Salix alba, slows chronological aging and prolongs longevity of the yeast Saccharomyces cerevisiae more efficiently than any of the previously known pharmacological interventions. Here, we investigated mechanisms through which PE21 delays yeast chronological aging and extends yeast longevity. We show that PE21 causes a remodeling of lipid metabolism in chronologically aging yeast, thereby instigating changes in the concentrations of several lipid classes. We demonstrate that such changes in the cellular lipidome initiate three mechanisms of aging delay and longevity extension. The first mechanism through which PE21 slows aging and prolongs longevity consists in its ability to decrease the intracellular concentration of free fatty acids. This postpones an age-related onset of liponecrotic cell death promoted by excessive concentrations of free fatty acids. The second mechanism of aging delay and longevity extension by PE21 consists in its ability to decrease the concentrations of triacylglycerols and to increase the concentrations of glycerophospholipids within the endoplasmic reticulum membrane. This activates the unfolded protein response system in the endoplasmic reticulum, which then decelerates an age-related decline in protein and lipid homeostasis and slows down an aging-associated deterioration of cell resistance to stress. The third mechanisms underlying aging delay and longevity extension by PE21 consists in its ability to change lipid concentrations in the mitochondrial membranes. This alters certain catabolic and anabolic processes in mitochondria, thus amending the pattern of aging-associated changes in several key aspects of mitochondrial functionality.

PMID: 31645900 [PubMed]