Tag: Cellular Senescence

Researchers have discovered a primate-specific piece of non-coding RNA that is linked to aging and makes senescence worse. The packing matters While non-coding RNA strands (ncRNAs) do not themselves produce proteins, they serve crucial regulatory functions. Short ncRNAs, such as microRNAs, are involved in the fine-tuning of transcriptional pathways, modulating the proteins produced by coding...

Researchers have found that bound pieces of RNA and DNA in the cytoplasm of senescent cells encourage these cells to secrete inflammatory factors. When transcription gets sticky As part of the transcription process that produces necessary proteins, RNA must chemically interact with DNA. When it binds to DNA and integrates itself into the genome, it...

In Aging Cell, researchers have described the way that antioxidants work against senescence in muscle cells by altering mTOR signaling. Senescent cells don't sense nutrients properly Deregulated Nutrient SensingThe four pathways of nutrient-sensing regulate metabolism and influence aging. The four associated key protein groups are IGF-1, mTOR, sirtuins, and AMPK. We call these proteins “nutrient-sensing”...

A team of reviewers has taken a look at the relationship between cancer, cellular senescence, and vascular overgrowth and published this information in Aging Cell. Different gut cancers form through different pathways The authors begin their paper by discussing two cancers that are downstream of inflammatory bowel disease (IBD): colorectal cancer (CRC) [1] and colitis-associated...

Researchers have discovered the role of cellular senescence in the interaction between omega-3 polyunsaturated fatty acids (PUFAs) and chronic kidney disease (CKD). Previous mixed results Several clinical trials have found that taking omega-3 PUFAs has benefits for older people. One study found that it reduces the rate of aging according to epigenetic clocks [1], while...

In Aging Cell, researchers have described the differences between primary and secondary senescent cells, comparing radiation-induced senescence to senescence induced by the senescence-associated secretory phenotype (SASP). Heterogeneity on top of heterogeneity Cellular SenescenceAs your body ages, more of your cells become senescent. Senescent cells do not divide or support the tissues of which they are...