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Tag: Loss of Proteostasis

Swimming in ice
A paper published today in Nature Aging describes how cold temperatures stimulate the production of PA28Ξ³, a protein that appears to increase lifespan in worms and cells. An explanation for a commonly held belief Cold temperatures have been associated with longevity for more than a hundred years [1]. The conventional explanation is that this is...
Mutant cell
A preprint published in bioRxiv has shown the mechanisms by which cancer handles the protein dysfunction brought about by its own mutational load and how these mechanisms are different from ordinary proteostasis machinery. A highly variable burden Previous research has shown that tumors vary widely in their numbers of mutations. Some cells in a single...
Elderly Blood Draw
Published in GeroScience, a groundbreaking study from the renowned Conboy lab has confirmed that plasma dilution leads to systemic rejuvenation against multiple proteomic aspects of aging in human beings. Systemic molecular excess This paper takes the view that much of aging is driven by systemic molecular excess. Signaling molecules, antibodies, and toxins, which gradually accumulate...
Lewy bodies
A team of researchers publishing in Nature Communications has described nanobodies that can destroy the Ξ±-synuclein aggregates that characterize Lewy bodies, which are associated with dementia and Parkinson's disease [1]. What are nanobodies? Traditional antibody therapies, while promising in some studies, are too large to enter cells in order to affect the aggregates there [2]....
Organs
An in-depth preprint published in bioRxiv has thoroughly described how separate tissues lose proteostasis in different ways. Why we Age: Loss of ProteostasisThe loss of proteostasis is the failure of the protein building machinery of the cell and the accumulation of misfolded proteins, which is one of the root causes of age-related diseases, including Alzheimer's...
Lab mouse in hand
Researchers publishing in Aging have found that the anti-malarial drug chloroquine increases lifespan in male NRMI mice. The NRMI, like the Black 6, is a standard breed widely used in research, and these mice were not directly genetically modified. Substantial positive lifespan effects We have previously reported a study showing that choloroquine increases longevity in...