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Publication - Professor Paolo Madeddu

    LAV-BPIFB4 associates with reduced frailty in humans and its transfer prevents frailty progression in old mice.


    Malavolta, M, Dato, S, Villa, F, De Rango, F, Iannone, F, Ferrario, A, Maciag, A, Ciaglia, E, D'amato, A, Carrizzo, A, Basso, A, Orlando, F, Provinciali, M, Madeddu, PR, Passarino, G, Vecchione, C, Rose, G & Puca, AA, 2019, ‘LAV-BPIFB4 associates with reduced frailty in humans and its transfer prevents frailty progression in old mice.’. Aging, vol 11., pp. 6555-6568


    There is an increasing concern about age-related frailty because of the growing number of elderly people in the general population. The Longevity-Associated Variant (LAV) of the human BPIFB4 gene was found to correct endothelial dysfunction, one of the mechanisms underlying frailty, in aging mice whereas the RV-BPIFB4 variant induced opposite effects. Thus, we newly hypothesize that, besides being associated with life expectancy, BPIFB4 polymorphisms can predict frailty.Aim and Results: Here we investigated if the BPIFB4 haplotypes, LAV, wild-type (WT) and RV, differentially associate with frailty in a cohort of 237 elderly subjects from Calabria region in Southern Italy. Moreover, we studied the effect of systemic adeno-associated viral vector-mediated LAV-BPIFB4 gene transfer on the progression of frailty in aging mice. We found an inverse correlation of the homozygous LAV-BPIFB4 haplotype with frailty in elderly subjects. Conversely, carriers of the RV-BPIFB4 haplotype showed an increase in the frailty status and risk of death. Moreover, in old mice, LAV-BPIFB4 gene transfer delayed frailty progression.

    These data indicate that specific BPIFB4 haplotypes could represent useful genetic markers of frailty. In addition, horizontal transfer of a healthy gene variant can attenuate frailty in aging organisms.

    Full details in the University publications repository