Metformin: Sentinel of the Epigenetic Landscapes That Underlie Cell Fate and Identity DOI Creative Commons
Javier A. Menéndez

Biomolecules, Journal Year: 2020, Volume and Issue: 10(5), P. 780 - 780

Published: May 18, 2020

The biguanide metformin is the first drug to be tested as a gerotherapeutic in clinical trial TAME (Targeting Aging with Metformin). current consensus that exerts indirect pleiotropy on core metabolic hallmarks of aging, such insulin/insulin-like growth factor 1 and AMP-activated protein kinase/mammalian Target Of Rapamycin signaling pathways, downstream its primary inhibitory effect mitochondrial respiratory complex I. Alternatively, but not mutually exclusive, can exert regulatory effects components biologic machinery aging itself chromatin-modifying enzymes. An integrative metabolo-epigenetic outlook supports new model whereby operates guardian cell identity, capable retarding cellular by preventing loss information-theoretic nature epigenome. ultimate anti-aging mechanism might involve global preservation epigenome architecture, thereby ensuring fate commitment phenotypic outcomes despite challenging noise. Metformin therefore inspire development gerotherapeutics preserving architecture for identity. Such should replicate ability halt erosion epigenetic landscape, mitigate commitment, delay stochastic/environmental DNA methylation drifts, alleviate senescence. Yet, it remains challenge confirm if changes higher-order genomic organizers connect capacity dynamically regulate three-dimensional landscapes 4th dimension, time.

Language: Английский

Spermidine activates mitochondrial trifunctional protein and improves antitumor immunity in mice DOI
Muna Al-Habsi, Kenji Chamoto, Ken Matsumoto

et al.

Science, Journal Year: 2022, Volume and Issue: 378(6618)

Published: Oct. 27, 2022

Spermidine (SPD) delays age-related pathologies in various organisms. SPD supplementation overcame the impaired immunotherapy against tumors aged mice by increasing mitochondrial function and activating CD8+ T cells. Treatment of naïve cells with acutely enhanced fatty acid oxidation. conjugated to beads bound trifunctional protein (MTP). In MTP complex, synthesized purified from Escherichia coli, α β subunits strong affinity allosterically their enzymatic activities. cell-specific deletion subunit abolished enhancement programmed cell death 1 (PD-1) blockade SPD, indicating that is required for SPD-dependent activation.

Language: Английский

Citations

116

Epigenetic Regulation of Cellular Senescence DOI Creative Commons
Jack D. Crouch, Maria Shvedova,

Rex Jeya Rajkumar Samdavid Thanapaul

et al.

Cells, Journal Year: 2022, Volume and Issue: 11(4), P. 672 - 672

Published: Feb. 15, 2022

Senescence is a complex cellular stress response that abolishes proliferative capacity and generates unique secretory pattern implicated in organismal aging age-related disease. How cell transitions to senescent state multifactorial often requires transcriptional regulation of multiple genes. Epigenetic alterations DNA chromatin are powerful regulators genome architecture gene expression, they play crucial role mediating the induction maintenance senescence. This review will highlight changes chromatin, methylation, histone establish maintain senescence, alongside specific epigenetic senescence-associated phenotype (SASP).

Language: Английский

Citations

82

Cellular rejuvenation: molecular mechanisms and potential therapeutic interventions for diseases DOI Creative Commons

Shuaifei Ji,

Mingchen Xiong,

Huating Chen

et al.

Signal Transduction and Targeted Therapy, Journal Year: 2023, Volume and Issue: 8(1)

Published: March 14, 2023

Abstract The ageing process is a systemic decline from cellular dysfunction to organ degeneration, with more predisposition deteriorated disorders. Rejuvenation refers giving aged cells or organisms youthful characteristics through various techniques, such as reprogramming and epigenetic regulation. great leaps in rejuvenation prove that not one-way street, many rejuvenative interventions have emerged delay even reverse the process. Defining mechanism by which roadblocks signaling inputs influence complex programs essential for understanding developing strategies. Here, we discuss intrinsic extrinsic factors counteract cell rejuvenation, targeted core mechanisms involved this Then, critically summarize latest advances state-of-art strategies of rejuvenation. Various methods also provide insights treating specific ageing-related diseases, including reprogramming, removal senescence (SCs) suppression senescence-associated secretory phenotype (SASP), metabolic manipulation, stem cells-associated therapy, dietary restriction, immune heterochronic transplantation, etc. potential applications therapy extend cancer treatment. Finally, analyze detail therapeutic opportunities challenges technology. Deciphering will further into anti-ageing disease treatment clinical settings.

Language: Английский

Citations

82

Microbiome and Human Aging: Probiotic and Prebiotic Potentials in Longevity, Skin Health and Cellular Senescence DOI Open Access
Jacqueline L. Boyajian, Merry Ghebretatios, Sabrina Schaly

et al.

Nutrients, Journal Year: 2021, Volume and Issue: 13(12), P. 4550 - 4550

Published: Dec. 18, 2021

The role of the microbiome in human aging is important: directly impacts through gastrointestinal system. However, microbial impact on skin has yet to be fully understood. For example, cellular senescence an intrinsic process that been recently associated with imbalance. With age, cells become senescent response stress wherein they undergo irreversible growth arrest while maintaining high metabolic activity. An accumulation linked various and chronic pathologies due overexpression senescence-associated secretory phenotype (SASP) comprised proinflammatory cytokines, chemokines, factors, proteases, lipids extracellular matrix components. In particular, dermatological disorders may promoted by as a common site accumulation. gut microbiota influences disruption gut-skin axis secretion metabolites. Metabolomics can used identify quantify metabolites involved senescence. Moreover, novel anti-senescent therapeutics are warranted given poor safety profiles current pharmaceutical drugs. Probiotics prebiotics effective alternatives, considering relationship between healthy aging. further research composition under status needed develop immunomodulatory therapies.

Language: Английский

Citations

83

The Aging Metabolome—Biomarkers to Hub Metabolites DOI Creative Commons
Rishi Sharma, Arvind Ramanathan

PROTEOMICS, Journal Year: 2020, Volume and Issue: 20(5-6)

Published: Feb. 18, 2020

Abstract Aging biology is intimately associated with dysregulated metabolism, which one of the hallmarks aging. Aging‐related pathways such as mTOR and AMPK, are major targets anti‐aging interventions including rapamcyin, metformin, exercise, either directly regulate or intersect metabolic pathways. In this review, numerous candidate bio‐markers aging that have emerged using metabolomics outlined. Metabolomics studies also reveal not all metabolites created equally. A set core “hub” emerging central mediators The hub reviewed here nicotinamide adenine dinucleotide, reduced dinucleotide phosphate, α‐ketoglutarate, β‐hydroxybutyrate. These signaling epigenetic roles along their canonical co‐factors intermediates carbon metabolism. Together these suggest a role TCA cycle in dysregulation

Language: Английский

Citations

76

β-hydroxybutyrate as an Anti-Aging Metabolite DOI Open Access
Lian Wang, Peijie Chen, Weihua Xiao

et al.

Nutrients, Journal Year: 2021, Volume and Issue: 13(10), P. 3420 - 3420

Published: Sept. 28, 2021

The ketone bodies, especially β-hydroxybutyrate (β-HB), derive from fatty acid oxidation and alternatively serve as a fuel source for peripheral tissues including the brain, heart, skeletal muscle. β-HB is currently considered not solely an energy substrate maintaining metabolic homeostasis but also acts signaling molecule of modulating lipolysis, oxidative stress, neuroprotection. Besides, it serves epigenetic regulator in terms histone methylation, acetylation, β-hydroxybutyrylation to delay various age-related diseases. In addition, studies support endogenous administration or exogenous supplementation effective strategies induce state nutritional ketosis. purpose this review article provide overview metabolism its relationship application Future are needed reveal whether has potential adjunctive therapy aging.

Language: Английский

Citations

74

In Pursuit of Healthy Aging: Effects of Nutrition on Brain Function DOI Open Access

Thayza Martins Melzer,

Luana M. Manosso, Suk-Yu Yau

et al.

International Journal of Molecular Sciences, Journal Year: 2021, Volume and Issue: 22(9), P. 5026 - 5026

Published: May 10, 2021

Consuming a balanced, nutritious diet is important for maintaining health, especially as individuals age. Several studies suggest that consuming rich in antioxidants and anti-inflammatory components such those found fruits, nuts, vegetables, fish may reduce age-related cognitive decline the risk of developing various neurodegenerative diseases. Numerous have been published over last decade focusing on nutrition how this impacts health. The main objective current article to review data linking role with aging decline. Specifically, we discuss roles micronutrients macronutrients provide an overview gut microbiota-gut-brain axis impact brain function general processes particular during aging. We propose dietary interventions designed optimize levels macro maximize functioning can be therapeutic value improving functioning, particularly

Language: Английский

Citations

60

Ovarian aging: energy metabolism of oocytes DOI Creative Commons
Shenglan Bao, Tailang Yin,

Su Liu

et al.

Journal of Ovarian Research, Journal Year: 2024, Volume and Issue: 17(1)

Published: May 31, 2024

Abstract In women who are getting older, the quantity and quality of their follicles or oocytes decline. This is characterized by decreased ovarian reserve function (DOR), fewer remaining oocytes, lower oocytes. As more choose to delay childbirth, decline in fertility associated with age has become a significant concern for modern women. The oocyte key indicator aging. Many studies suggest that age-related changes energy metabolism may impact quality. Changes affect adenosine 5'-triphosphate (ATP) production, but how related products proteins influence remains largely unknown. review focuses on aging its potential quality, as well therapeutic strategies partially metabolism. research aims enhance our understanding metabolism, identification biomarkers treatment methods.

Language: Английский

Citations

14

Mitochondrial-derived peptides in aging and age-related diseases DOI
Su‐Jeong Kim, Brendan Miller, Hiroshi Kumagai

et al.

GeroScience, Journal Year: 2020, Volume and Issue: 43(3), P. 1113 - 1121

Published: Sept. 10, 2020

Language: Английский

Citations

52

Dietary prospects of coconut oil for the prevention and treatment of Alzheimer's disease (AD): A review of recent evidences DOI
S. V. Ramesh, Veda Krishnan, Shelly Praveen

et al.

Trends in Food Science & Technology, Journal Year: 2021, Volume and Issue: 112, P. 201 - 211

Published: April 7, 2021

Language: Английский

Citations

51