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Age- and gender-related alterations of the number and clonogenic capacity of circulating CD34+ progenitor cells

The aim of this study was to evaluate the peripheral representation and the clonogenic capacity of CD34(+) progenitor cells from 130 healthy subjects (80 females and 50 males) ranging in age from 16 to 100 years. We demonstrated that the absolute number of circulating CD34(+) cells progressively and...

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Published in:Biogerontology (Dordrecht) 2005-05, Vol.6 (3), p.185-192
Main Authors: MORESI, Raffaella, TESEI, Silvia, COSTARELLI, Laura, VITICCHI, Claudio, STECCONI, Rosalia, BERNARDINI, Giovanni, PROVINCIALI, Mauro
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creator MORESI, Raffaella
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description The aim of this study was to evaluate the peripheral representation and the clonogenic capacity of CD34(+) progenitor cells from 130 healthy subjects (80 females and 50 males) ranging in age from 16 to 100 years. We demonstrated that the absolute number of circulating CD34(+) cells progressively and significantly decreased with advancing age, with a 2-fold reduction in subjects aged more than 80 years. The number of granulocyte-macrophagic (CFU-GM), erytroid (BFU-E), and mixed (CFU-GEMM) colonies which developed from the number of CD34(+) purified cells per ml, progressively and significantly decreased with advancing age. The reduction of both CD34(+) cell number and clonogenic capacity during aging was statistically significant in males but not in females. When evaluated on a per cell bases, a significant age-related decrease in the number of CFU-GM colonies was observed in female but not in male subjects. Our study demonstrates the influence of gender on age-related alterations of the number and clonogenic capacity of CD34(+) cells in the peripheral blood. This evidence deserves particular consideration for the future planning of stem cell therapy in age-associated debilitating diseases.
doi_str_mv 10.1007/s10522-005-7954-5
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subjects Adolescent
Adult
Aged
Aged, 80 and over
Aging
Aging - physiology
Antigens, CD34 - analysis
Biological and medical sciences
Cell Count
Colony-Forming Units Assay
Development. Metamorphosis. Moult. Ageing
Female
Fundamental and applied biological sciences. Psychology
Hematopoiesis - physiology
Hematopoietic Stem Cells - immunology
Humans
Male
Middle Aged
Sex Factors
Stem cells
Vertebrates: anatomy and physiology, studies on body, several organs or systems
title Age- and gender-related alterations of the number and clonogenic capacity of circulating CD34+ progenitor cells
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