🧬 Cellular Senescence: The Zombie Cells Within Us

Ever wonder why we age? Meet senescent cells - the "zombie cells" that stop dividing but refuse to die.

What happens:

→ Healthy cells become damaged (stress, DNA damage, telomere shortening)

The future of longevity? Senolytics - drugs that selectively eliminate these zombie cells, potentially reversing aspects of aging.

#CellularSenescence #AgingResearch #Longevity #Senolytics #RegenerativeMedicine #Geroscience

One molecule could reverse aging, boost memory, and repair muscle
Imagine a pill that could slow aging, sharpen your memory, strengthen muscles, and reduce chronic inflammation. It sounds like science fiction, but scientists have discovered a molecule that could make this dream a reality. This molecule activates TERT, a key enzyme that protects DNA as we age. In lab tests, it didn’t just slow aging—it reversed many signs of it.

In studies with older models, six months of treatment with this TERT-activating compound (TAC) triggered new brain cell growth, improved genes related to memory, and reduced inflammation. It also cleared out damaged “zombie” cells, which are linked to aging, and restored muscle strength and coordination. In human cells, TAC helped cells divide longer by lowering DNA damage, essentially promoting healthier aging.

This breakthrough holds massive potential for age-related diseases like Alzheimer’s, Parkinson’s, heart disease, and cancer. While it’s still in the early stages, the possibility of reversing aging itself could soon be within our grasp.
The idea of stopping or even reversing the aging process is no longer just a fantasy. Thanks to this discovery, the future of medicine might be closer than we think.

Longevity & anti-aging
#Longevity #HealthyAging #ReversingAging #LifeExtension #AgeReversal

Molecular & cellular science
#TERT #Telomerase #CellularSenescence #MolecularBiology #DNARepair

Brain & muscle health
#Neurogenesis #BrainHealth #MuscleRegeneration #CognitiveHealth

Innovation & medicine
#MedicalBreakthrough #Biotech #RegenerativeMedicine #FutureOfMedicine

Scientists found a protein that carries "old age signals" through the body — and blocking it literally reversed the damage.

In a major breakthrough in aging research, scientists at Korea University’s College of Medicine have discovered that cellular aging can spread throughout the body via the bloodstream.

The culprit is ReHMGB1, a redox-sensitive version of a protein called HMGB1, which is secreted by aging, or senescent, cells. This protein was shown to trigger aging-like effects in distant, healthy tissues—reducing their ability to regenerate and harming muscle performance. In mouse models, researchers successfully blocked ReHMGB1 using antibodies, resulting in fewer signs of aging and improved recovery after injury.

This study, published in Metabolism – Clinical and Experimental, provides the first direct evidence that aging is not just a local cellular process but one that can be systemically transmitted through blood. By identifying ReHMGB1 as a key molecular messenger in this process, researchers now have a potential target for therapies aimed at slowing or even reversing age-related decline. The findings could have far-reaching implications for treating a range of conditions tied to aging, from muscle wasting to organ degeneration.

Source: Jeon, O. H., et al. (2025). Propagation of senescent phenotypes by extracellular HMGB1 is dependent on its redox state. Metabolism – Clinical and Experimental.

Longevity & aging research
#Longevity #AgingResearch #ReversingAging #HealthyAging #Senescence

Molecular & biomedical focus
#HMGB1 #ReHMGB1 #MolecularBiology #CellularSenescence #Biogerontology

Therapeutics & innovation
#AntiAging #RegenerativeMedicine #Biotech #TranslationalMedicine #FutureOfMedicine

General science & discovery
#MedicalBreakthrough #LifeSciences #CuttingEdgeScience #AgingScience

We are excited to announce that our graduate student, Garrett Sessions, has recently released a preprint of his research on how healthy cells become senescent in response to stresses such as DNA damage. 🧫 Congratulations to Garrett on this major accomplishment! 🎉 Click the following link to read the full preprint: https://www.biorxiv.org/content/10.1101/2024.10.14.618296v1

#PurvisLab #cellularsenescence #research #unc #UNCResearch

Referenced link: https://medicalxpress.com/news/2023-02-cellular-senescence-plays-significant-role.html
Discuss on https://discu.eu/q/https://medicalxpress.com/news/2023-02-cellular-senescence-plays-significant-role.html

Originally posted by Phys.org / @physorg_com: http://nitter.platypush.tech/medical_xpress/status/1628028785671954435#m

RT by @physorg_com: #Cellularsenescence plays a significant role in cerebral tumors @InstitutCerveau @NatureComms https://www.nature.com/articles/s41467-023-36124-9 https://medicalxpress.com/news/2023-02-cellular-senescence-plays-significant-role.html