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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
Lab-On-A-Chip for the Development of Pro-/Anti-Angiogenic Nanomedicines to Treat Brain Diseases.

Author(s): Subramaniyan Parimalam S, Badilescu S, Sonenberg N, Bhat R, Packirisamy M

Int J Mol Sci. 2019 Dec 05;20(24): Authors: Subramaniyan Parimalam S, Badilescu S, Sonenberg N, Bhat R, Packirisamy M

Article GUID: 31817343
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
Proteomic Analysis of Morphologically Changed Tissues after Prolonged Dexamethasone Treatment

Author(s): Malkawi AK; Masood A; Shinwari Z; Jacob M; Benabdelkamel H; Matic G; Almuhanna F; Dasouki M; Alaiya AA; Rahman AMA;...

Prolonged dexamethasone (Dex) administration leads to serious adverse and decrease brain and heart size, muscular atrophy, hemorrhagic liver, and presence of kidney cysts. Herein, we used an untarg...

Article GUID: 31247941
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
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
The Complex Subtype-Dependent Role of Connexin 43 (GJA1) in Breast Cancer.

Author(s): Busby M, Hallett MT, Plante I

Int J Mol Sci. 2018 Feb 28;19(3): Authors: Busby M, Hallett MT, Plante I

Article GUID: 29495625
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
Title:Some Metabolites Act as Second Messengers in Yeast Chronological Aging.
Authors:Mohammad K,  Dakik P,  Medkour Y,  McAuley M,  Mitrofanova D,  Titorenko VI
Link:https://www.ncbi.nlm.nih.gov/pubmed/29543708?dopt=Abstract
DOI:10.3390/ijms19030860
Category:Int J Mol Sci
PMID:29543708
Dept Affiliation: BIOLOGY
1 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. karamat.mohammad@concordia.ca.
2 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. pameladakik@gmail.com.
3 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. writetoyounes@gmail.com.
4 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. melissa.mcauley@concordia.ca.
5 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. mitrofanova_darya@hotmail.com.
6 Department of Biology, Concordia University, 7141 Sherbrooke Street, West, SP Building, Room 501-13, Montreal, QC H4B 1R6, Canada. vladimir.titorenko@concordia.ca.

Description:

Some Metabolites Act as Second Messengers in Yeast Chronological Aging.

Int J Mol Sci. 2018 Mar 15;19(3):

Authors: Mohammad K, Dakik P, Medkour Y, McAuley M, Mitrofanova D, Titorenko VI

Abstract

The concentrations of some key metabolic intermediates play essential roles in regulating the longevity of the chronologically aging yeast Saccharomyces cerevisiae. These key metabolites are detected by certain ligand-specific protein sensors that respond to concentration changes of the key metabolites by altering the efficiencies of longevity-defining cellular processes. The concentrations of the key metabolites that affect yeast chronological aging are controlled spatially and temporally. Here, we analyze mechanisms through which the spatiotemporal dynamics of changes in the concentrations of the key metabolites influence yeast chronological lifespan. Our analysis indicates that a distinct set of metabolites can act as second messengers that define the pace of yeast chronological aging. Molecules that can operate both as intermediates of yeast metabolism and as second messengers of yeast chronological aging include reduced nicotinamide adenine dinucleotide phosphate (NADPH), glycerol, trehalose, hydrogen peroxide, amino acids, sphingolipids, spermidine, hydrogen sulfide, acetic acid, ethanol, free fatty acids, and diacylglycerol. We discuss several properties that these second messengers of yeast chronological aging have in common with second messengers of signal transduction. We outline how these second messengers of yeast chronological aging elicit changes in cell functionality and viability in response to changes in the nutrient, energy, stress, and proliferation status of the cell.

PMID: 29543708 [PubMed - indexed for MEDLINE]