Cellular senescence in brain aging and cognitive decline DOI Creative Commons
Areez Shafqat, Saifullah Khan, Mohamed H. Omer

и другие.

Frontiers in Aging Neuroscience, Год журнала: 2023, Номер 15

Опубликована: Ноя. 23, 2023

Cellular senescence is a biological aging hallmark that plays key role in the development of neurodegenerative diseases. Clinical trials are currently underway to evaluate effectiveness senotherapies for these However, impact on brain and cognitive decline absence neurodegeneration remains uncertain. Moreover, patient populations like cancer survivors, traumatic injury obese individuals, obstructive sleep apnea patients, chronic kidney disease patients can suffer age-related changes prematurely, suggesting they may accelerated brain. Understanding neurocognitive deficits linked conditions crucial, especially considering rapidly evolving field senotherapeutics. Such treatments could help alleviate early significantly reducing morbidity healthcare costs. This review provides translational perspective how cellular decline. We also discuss important caveats surrounding mainstream senolytics senomorphics, present emerging evidence hyperbaric oxygen therapy immune-directed therapies as viable modalities senescent cell burden.

Язык: Английский

Co-targeting BCL-XL and BCL-2 by PROTAC 753B eliminates leukemia cells and enhances efficacy of chemotherapy by targeting senescent cells DOI Creative Commons
Yannan Jia, Lina Han,

Cassandra L. Ramage

и другие.

Haematologica, Год журнала: 2023, Номер 108(10), С. 2626 - 2638

Опубликована: Апрель 20, 2023

BCL-XL and BCL-2 are key anti-apoptotic proteins validated cancer targets. 753B is a novel BCL-XL/BCL-2 proteolysis targeting chimera (PROTAC) that targets both to the von Hippel-Lindau (VHL) E3 ligase, leading BCLX L/BCL-2 ubiquitination degradation selectively in cells expressing VHL. Because platelets lack VHL expression, spares on-target platelet toxicity caused by first-generation dual inhibitor navitoclax (ABT-263). Here, we report pre-clinical single-agent activity of against different leukemia subsets. effectively reduced cell viability induced dose-dependent subset hematopoietic lines, acute myeloid (AML) primary samples, vivo patient-derived xenograft AML models. We further demonstrated senolytic 753B, which enhanced efficacy chemotherapy chemotherapy-induced cellular senescence. These results provide rationale for utility therapy, suggest could produce an added therapeutic benefit overcoming senescence-induced chemoresistance when combined with chemotherapy.

Язык: Английский

Процитировано

27

Exploring the Communication of the SASP: Dynamic, Interactive, and Adaptive Effects on the Microenvironment DOI Open Access
Joëlle Giroud, Inès Bouriez, H. E. Paulus

и другие.

International Journal of Molecular Sciences, Год журнала: 2023, Номер 24(13), С. 10788 - 10788

Опубликована: Июнь 28, 2023

Cellular senescence is a complex cell state that can occur during physiological ageing or after exposure to stress signals, regardless of age. It dynamic process continuously evolves in context-dependent manner. Senescent cells interact with their microenvironment by producing heterogenous and plastic secretome referred as the senescence-associated secretory phenotype (SASP). Hence, understanding cross-talk between SASP be challenging due complexity signal exchanges. In this review, we first aim update definition its associated biomarkers from discovery present day. We detail regulatory mechanisms involved expression at multiple levels develop how orchestrate modifications, focusing on extracellular matrix neighboring cells' fate, intercellular communications. hypotheses these microenvironmental events may affect changes composition return. Finally, discuss various existing approaches targeting clarify what currently known about biological effects modified SASPs cellular environment.

Язык: Английский

Процитировано

23

Effects of regular exercise on vascular function with aging: Does sex matter? DOI
Kerrie L. Moreau,

Zachary S. Clayton,

Lyndsey E. DuBose

и другие.

AJP Heart and Circulatory Physiology, Год журнала: 2023, Номер 326(1), С. H123 - H137

Опубликована: Ноя. 3, 2023

Vascular aging, featuring endothelial dysfunction and large elastic artery stiffening, is a major risk factor for the development of age-associated cardiovascular diseases (CVDs). aging largely mediated by an excessive production reactive oxygen species (ROS) increased inflammation leading to reduced bioavailability vasodilatory molecule nitric oxide remodeling arterial wall. Other cellular mechanisms (i.e., mitochondrial dysfunction, impaired stress response, deregulated nutrient sensing, senescence), termed "hallmarks" or "pillars" may also contribute vascular aging. Gonadal which impacts women but some men, modulates process. Regular physical activity, including both aerobic resistance exercise, first-line strategy reducing CVD with Although exercise effective intervention counter there considerable variation in response training Aerobic improves stiffening middle-aged/older men enhances function oxidative preserving bioavailability; however, similar improvements are not consistently observed estrogen-deficient postmenopausal women. Sex differences adaptations be related gonadal declines estrogen that influence cellular-molecular mechanisms, disconnecting favorable signaling vasculature induced training. The present review will summarize current state knowledge on regular underlying involved, moderating role biological sex.

Язык: Английский

Процитировано

23

TFEB is a central regulator of the aging process and age-related diseases DOI Creative Commons
Samuel Abokyi, George Ghartey‐Kwansah, Dennis Y. Tse

и другие.

Ageing Research Reviews, Год журнала: 2023, Номер 89, С. 101985 - 101985

Опубликована: Июнь 15, 2023

Old age is associated with a greater burden of disease, including neurodegenerative disorders such as Alzheimer's disease and Parkinson's well other chronic diseases. Coincidentally, popular lifestyle interventions, caloric restriction, intermittent fasting, regular exercise, in addition to pharmacological interventions intended protect against age-related diseases, induce transcription factor EB (TFEB) autophagy. In this review, we summarize emerging discoveries that point TFEB activity affecting the hallmarks aging, inhibiting DNA damage epigenetic modifications, inducing autophagy cell clearance promote proteostasis, regulating mitochondrial quality control, linking nutrient-sensing energy metabolism, pro- anti-inflammatory pathways, senescence promoting regenerative capacity. Furthermore, therapeutic impact activation on normal aging tissue-specific development assessed contexts neurodegeneration neuroplasticity, stem differentiation, immune responses, muscle adaptation, adipose tissue browning, hepatic functions, bone remodeling, cancer. Safe effective strategies activating hold promise strategy for multiple age-associated diseases extending lifespan.

Язык: Английский

Процитировано

22

Cellular senescence in brain aging and cognitive decline DOI Creative Commons
Areez Shafqat, Saifullah Khan, Mohamed H. Omer

и другие.

Frontiers in Aging Neuroscience, Год журнала: 2023, Номер 15

Опубликована: Ноя. 23, 2023

Cellular senescence is a biological aging hallmark that plays key role in the development of neurodegenerative diseases. Clinical trials are currently underway to evaluate effectiveness senotherapies for these However, impact on brain and cognitive decline absence neurodegeneration remains uncertain. Moreover, patient populations like cancer survivors, traumatic injury obese individuals, obstructive sleep apnea patients, chronic kidney disease patients can suffer age-related changes prematurely, suggesting they may accelerated brain. Understanding neurocognitive deficits linked conditions crucial, especially considering rapidly evolving field senotherapeutics. Such treatments could help alleviate early significantly reducing morbidity healthcare costs. This review provides translational perspective how cellular decline. We also discuss important caveats surrounding mainstream senolytics senomorphics, present emerging evidence hyperbaric oxygen therapy immune-directed therapies as viable modalities senescent cell burden.

Язык: Английский

Процитировано

22