Loss of pregnancy-associated plasma protein A extends lifespan in mice |
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Authors: | Conover Cheryl A Bale Laurie K |
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Affiliation: | Endocrine Research Unit, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA. conover.cheryl@mayo.edu |
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Abstract: | Genetic deletion in mice of pregnancy-associated plasma protein A (PAPP-A), a recently identified metalloproteinase in the insulin-like growth factor system, extends by 30-40% both mean and maximum lifespan with no reduction in food intake or secondary endocrine abnormalities. Furthermore, these mice have markedly reduced incidence of spontaneous tumors. The findings implicate PAPP-A as a critical regulator of lifespan and age-related diseases, and suggest PAPP-A as a possible target to promote longevity. |
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Keywords: | gene knock-out insulin-like growth factor I longevity mouse model pregnancy-associated plasma protein A tumors |
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