Researchers discovered that liver cancer cells modify their metabolism to leave them susceptible to disruptions in arginine supply, a key molecule. A three-pronged approach targeting tumor metabolism, blocking survival-promoting responses, and starving tumors of arginine can induce senescence, making cancer cells killable.
Researchers at The Wistar Institute discovered that the enzyme ADAR1 plays a crucial role in regulating cellular senescence and tissue aging through a mechanism independent of RNA editing. This finding may lead to new therapeutic strategies for age-related disorders, such as cancer, neurodegeneration, and cardiovascular disease.
A new study reveals that oxidative damage to telomeres can trigger cellular senescence, leading to the development of 'zombie cells'. Researchers found that damage at telomeres disrupts DNA replication and induces stress signaling pathways, contributing to age-related diseases.
Researchers identified DNA damage-inducible transcript 4 (DDIT4) as a critical factor regulated by histone deacetylase 4 (HDAC4) in skin aging. Overexpression of HDAC4 rescued cells from senescence, while DDIT4 overexpression reversed changes associated with aging.
Researchers from Osaka University discovered that MondoA protein delays cellular senescence by activating autophagy, promoting longevity. Activation of MondoA also maintains mitochondrial stability, preventing senescence in tissues like the kidney.
Researchers at the Buck Institute discovered a naturally occurring metabolite, 25-hydroxycholesteral, that significantly reduces senescent cells in multiple cell types and improves muscle mass in aged mice. The molecule targets CRYAB, a small heat shock protein associated with age-related diseases like myopathies.
A study reveals how CSDE1 coordinates skin cell senescence, slowing down cellular function without causing death. This leads to the formation of a firewall against cancer, suppressing tumor growth.
Researchers at Kobe University discover that adding Vitamin B2 to stressed cells increases mitochondrial energy production and prevents cellular senescence. This finding has potential implications for preventing age-related disorders and extending healthy lifespans.
A study in mice found that senescent cells can lead to chronic stress and tissue damage, causing kidney problems. Eliminating these cells can reverse some premature tissue damage and potentially alleviate cardiovascular disease.
A research team at the University of Montreal Hospital Research Centre has found that cellular aging is caused by irreversible damage to the genome, not just telomere erosion. This discovery challenges the long-held scientific model and opens up new research opportunities for preventing cellular aging and genomic instability.
Researchers at Yale Cancer Center are launching a new tissue mapping center to study the role of senescent immune cells in development, aging, and disease. The goal is to develop strategies to target senescent cells to battle aging and cancer.
Researchers at Buck Institute will identify and characterize senescent cells in human ovaries, breast tissue, and skeletal muscle to better understand their role in age-related diseases. The study aims to develop therapeutics to improve human health by quelling the damaging effects of senescent cells.
Researchers create maps of senescence in heart and lung cells, comparing different types of senescent cells across the lifespan. The goal is to understand how senescent cells contribute to age-related diseases and develop therapies called senolytics.
The NIH has awarded $7.5 million to Washington University School of Medicine to study senescent cells, which are thought to contribute to aging and disease. Researchers will map the location and function of senescent cells in bone marrow and liver tissues.
Recent studies suggest that aging is a malleable process influenced by physiological, genetic, dietary, and pharmaceutical interventions. The relationship between cellular senescence and immunosenescence has been largely explored, with the goal of developing improved therapeutics to conserve vitality as we age.
The Buck Institute has been awarded a $14.3 million grant from the NIH to study cellular senescence, a hallmark of aging, as a driver of Alzheimer's disease and other age-related dementias. Researchers will investigate new mechanisms that can be developed into interventions to treat patients.
Researchers at Université de Montréal and McGill University have discovered a new multi-enzyme complex that reprograms metabolism and overcomes cellular senescence. The enzyme complex, named HTC, can inhibit cells from aging and has potential applications in treating various cancers.
A recent study published in Cell Metabolism found that reducing naturally occurring errors in protein synthesis improves both health and lifespan. By engineering a mutation in ribosomes, researchers observed fewer protein mistakes and improved heat resistance, leading to longer lifespans in yeast, worms, and fruit flies.
A KAIST research team used simulations to identify an enzyme that can reverse cellular senescence, a natural process contributing to aging and age-related diseases. By targeting the enzyme PDK1, cells were able to re-enter the cell cycle without proliferating abnormally.
The study identifies four distinct states of cellular senescence, each characterized by changes in metabolic and epigenomic processes. These states are linked to different levels of inflammation and metabolism, offering new insights into the aging process and potential ways to promote healthy longevity.
Researchers at Kumamoto University discovered that NSD2 enzyme prevents cellular senescence by maintaining cell growth and serum response. Reduced NSD2 leads to increased expression of genes related to cell aging and decreased activity of growth-promoting genes.
Astrocyte senescence is linked to excitotoxicity in cortical neurons involved in memory, highlighting aging as a major risk factor for neurodegeneration. The study identifies targets for drug development to slow pathology.
Aging retinal pigment epithelial cells undergo senescence due to increased oxidative stress, leading to age-related macular degeneration. Researchers found that inhibiting post-translational modifications, specifically SUMOylation, can alleviate this process, reducing SASP genes expression and proinflammatory factors.
A study published in Life Science Alliance found that the enzyme D-amino acid oxidase (DAO) promotes cellular senescence and aging by producing reactive oxygen species. By inducing DNA double-strand breaks, researchers found increased expression of DAO is dependent on p53, a cancer-suppressing protein.
Newborn naked mole rats display developmental senescence in various tissues, including hair follicles, nail beds, and skin dermis. Oncogene-induced and DNA damage-induced senescence occur in embryonic and skin fibroblasts, suggesting cellular senescence is not eliminated with evolution.
Researchers identified genes that control cellular senescence, a process that permanently arrests cell growth. These findings have potential applications for creating new anticancer drugs and developing anti-aging products.
Researchers found that eliminating p19ARF-expressing cells enhances pulmonary function in mice. Senescent cells contribute to tissue aging and impaired lung function with age.
Research highlights the intertwined pathways regulating apoptosis and cellular senescence in cancer and aging. The review suggests that harnessing benefits of both processes could lead to new combination therapies, while limiting drawbacks.
Researchers discovered how NORE1A prevents excessive cell proliferation associated with cancer. Overexpressing NORE1A induced cell senescence, whereas removing the protein enhanced cancer-promoting Ras mutations. This study highlights the critical role of NORE1A in regulating tumor growth.
Scientists have mapped the physical structure of the nuclear landscape to understand changes in genomic interactions during cell senescence and ageing. They reconciled two models of ageing, finding that SAHF domains show a dramatic loss of local interconnectivity and internal structure in senescent chromatin.
Manuel Serrano proposes a new vision of cellular senescence as a mechanism to eliminate unwanted cells and promote tissue regeneration. Recent research reveals that senescence is not intrinsically negative for the organism, but rather a protective mechanism against cell damage.
A new study found that adjuvant chemotherapy increases markers of molecular aging in the blood of BC survivors, including p16INK4a and ARF expression. These age-promoting effects may last for several years after treatment and even be permanent.
A team of investigators has identified a previously unknown mechanism regulating oncogene-induced senescence (OIS), a natural response to tumor development. Down-regulation of deoxyribonucleoside pools causes DNA damage, leading to cell cycle arrest and senescence. Restoration of depleted dNTP pools can suppress DNA damage and OIS.
Disabling the Skp2 gene after oncogenic stress induces cellular senescence in cancer cells, restricting tumor growth. Researchers believe this could lead to novel agents that suppress tumor development in common types of cancer.
Researchers enhanced a type of cellular senescence to suppress prostate tumor development and growth in mice. This novel approach uses Pten-loss-induced cellular senescence to prevent cancer progression.
A new study reveals that cellular senescence, a natural process for fighting cancer in younger persons, can actually promote cancer in older individuals by triggering the secretion of proteins that cause inflammation. This process is linked to almost every major disease associated with aging, including many cancers.
A new study identifies CUL7 E3 ubiquitin ligase as a key regulator of protein degradation linked to cellular senescence. The researchers found that the enzyme targets insulin receptor substrate 1 (IRS-1) for degradation, leading to oncogene-induced senescence.
Dr. Smith, editor of GSA's Journal of Gerontology: Biological Sciences, receives the Robert W. Kleemeier Award for his decades-long research on cellular senescence. His work focuses on chromatin structure alterations in this process.
Researchers found that MYC binds to the WRN gene promoter, activating WRN expression and promoting cellular senescence in tumor cells. This discovery suggests a potential therapeutic target for cancer treatment by inhibiting WRN in MYC-induced tumor cells.