http://www.cnr.it/ontology/cnr/individuo/prodotto/ID191411

Age-related increase of stem marker expression influences vascular smooth muscle cell properties (Articolo in rivista)

Type

Articolo in rivista (Classe)
Prodotto della ricerca (Classe)

Label

Age-related increase of stem marker expression influences vascular smooth muscle cell properties (Articolo in rivista) (literal)

Anno

2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.atherosclerosis.2012.07.016 (literal)

Alternative label

Ferlosio A, Arcuri G, Doldo E, Scioli MG, De Falco S, Spagnoli LG, Orlandi A (2012)
Age-related increase of stem marker expression influences vascular smooth muscle cell properties
in Atherosclerosis (Amst.)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Ferlosio A, Arcuri G, Doldo E, Scioli MG, De Falco S, Spagnoli LG, Orlandi A (literal)

Pagina inizio

51 (literal)

Pagina fine

57 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.sciencedirect.com/science/article/pii/S0021915012004637 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

224 (literal)

Rivista

Atherosclerosis (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

7 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

1 (literal)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

1. Univ Roma Tor Vergata, Inst Pathol Anat, Dept Biomed & Prevent, I-00133 Rome, Italy 2. Univ Roma Tor Vergata, Dept Biomed & Prevent, Lab Immunol & Signal Transduct, I-00133 Rome, Italy 3. CNR, Inst Genet & Biophys, I-80125 Naples, Italy (literal)

Titolo

Age-related increase of stem marker expression influences vascular smooth muscle cell properties (literal)

Abstract

Objective: Aging represents a major risk factor for vascular disease development. With aging, changes of the biological properties of vascular smooth muscle cells (SMCs) are observed. Stem marker expression characterizes SMCs during developmental growth and atherosclerosis, but the contribution of SMCs with stem features to the age-related arterial remodeling remains largely unknown. Methods and results: Immunostaining revealed rare vascular growth factor receptor-1(+) (flt-1(+)) and c-kit(+) cells in tunica media of grossly normal human young (17-30 years old) large arteries and 2-month old rat aorta, whereas CD133(+) cells were absent. In large arteries of human aged donors (64-77 years), flt-1(+) and c-kit(+) cell number increased in the intimal thickening and tunica media. Double immunofluorescence revealed that 30.6 +/- 3% of flt-1(+) intimal cells co-expressed alpha-smooth muscle actin. Immunostaining, blots and RT-PCR documented the increased expression of flt-1 and c-kit in 20-24-month old rat aortic media. In vitro, old rat aortic SMCs proliferated and migrated more with greater flt-1, c-kit, NF-kappa B, VCAM-1, IAP-1 and MCP-1 levels and less alpha-smooth muscle actin and myosin compared to young SMCs. Old SMCs were also more susceptible to all-trans retinoic and NF-kappa B inhibition-induced apoptosis compared to young SMCs. Anti-flt-1 blocking antibody reduced migration and placental growth factor-induced but not serum and PDGF-BB-stimulated proliferation of old SMCs. Conclusions: The increase of flt-1(+) and c-kit(+) SMCs characterizes large arteries of aged donors; the blocking of flt-1 signaling influences the behavior of old SMCs, suggesting that the accumulation of SMCs with a stem phenotype contributes to the age-dependent adverse arterial remodeling. (c) 2012 Elsevier Ireland Ltd. All rights reserved. (literal)

Prodotto di

Autore CNR