Results 141 to 150 of about 12,101,411 (341)

The Impact of Senescent Cells on Limb Regeneration

open access: yes
Cellular senescence is a state in which cells enter cell cycle arrest. However, senescent cells have the ability to secrete signaling molecules such as chemokines, cytokines, and growth factors.
Oesterle, Marlene J,   +2 more
core   +2 more sources

Clearance of senescent cells by ABT263 rejuvenates aged hematopoietic stem cells in mice

open access: yesNature Medicine, 2015
Senescent cells (SCs) accumulate with age and after genotoxic stress, such as total-body irradiation (TBI). Clearance of SCs in a progeroid mouse model using a transgenic approach delays several age-associated disorders, suggesting that SCs play a ...
Jianhui Chang   +17 more
semanticscholar   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Fig. 3 Therapeutic strategies for preventing and eliminating senescent cells.

open access: yes, 2014
The diagram summarizes the proposed strategies to reduce the presence of senescent cells. These strategies include: extending telomere length with the use of telomerase activators would enhance the replicative lifespan of cells and prevent replicative ...
Dominick Burton (607957)
core   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

GRSF1 suppresses cell senescence

open access: yesAging, 2018
A prominent phenotype triggered by the loss of mitochondrial homeostasis is cellular senescence, characterized by cessation of growth and a senescence-associated secretory phenotype (SASP). We identified the G-rich RNA sequence-binding factor 1 (GRSF1) as a major mitochondrial protein implicated in this response.
Noh, Ji Heon   +6 more
openaire   +2 more sources

Immunotherapy-based targeting of senescent cells [PDF]

open access: yes
Cellular senescence is a state of permanent cell cycle arrest, characterized by substantial macromolecular alterations and senescence-associated secretory phenotype (SASP) in response to various stressors.
Deng, Yushuang
core   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Senescence of Human Cells in Culture [PDF]

open access: yesNature, 1973
DR L. K. BLEYMAN1 need not be concerned that our experiments on clonal senescence of human cells in culture are being carried out in ignorance of earlier studies of such ageing in protozoa. Indeed the paper he cites2 refers to one important study carried out with protozoa.
openaire   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

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