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Células mononucleares de sangue de cordão umbilical e de sangue periférico estimulado com fator de crescimento granulocítico (G-CSF): análise da proliferação e de apoptose in vitro / Mononuclear cells of umbilical cord blood and of granulocyte colony-stimulating factor: analyses of proliferation and apoptosis in vitro
São Paulo; s.n; 2003. [201] p. ilus, tab, graf.
Thesis in Portuguese | LILACS | ID: lil-408863
RESUMO
Células mononucleares de sangue de cordão umbilical (SCU) e sangue periférico mobilizado (SPM) com G-CSF, foram cultivadas in vitro com citocinas, na presença ou não de estroma de medula óssea. Os objetivos foram avaliar a capacidade proliferativa de células progenitoras, a ocorrência de apoptose e expressão de integrina. Nas culturas sem estroma, a celularidade aumentou 5 vezes (SCU) e não se alterou nas de SPM. O total de células CD34+ caiu em ambas culturas. Com estroma, o total de células nucleadas aumentou 7 vezes (SCU) e 2,3 vezes (SPM). O total de células CD34+ permaneceu o mesmo. A apoptose foi menor nas culturas de SCU. A expressão de integrina caiu, na população de células CD34+ e de CD45+ / Mononuclear cells from umbilical cord blood (UCB) and G-CSF mobilized peripheral blood (MPB), were cultured in vitro, in the presence of cytokines, with or without bone marrow stroma. The aims were to evaluate the proliferative response of progenitor cells, occurrence of apoptosis and expression of adhesion molecule. In cultures without stroma, cellularity increased 5-fold for UCB, but has not changed for MPB. The number of CD34+ cells has dropped in both culture. With stroma, total nucleated cells had a 7-fold increse (UCB) and a 2,3-fold (MBP), however, CD34+ cells number has not changed. Apoptosis was lower in UCB culture. The expression of integrin decreased, in the...
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Index: LILACS (Americas) Main subject: Umbilical Cord / Leukocytes, Mononuclear / Apoptosis Limits: Female / Humans / Infant, Newborn / Pregnancy Language: Portuguese Year: 2003 Type: Thesis

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Index: LILACS (Americas) Main subject: Umbilical Cord / Leukocytes, Mononuclear / Apoptosis Limits: Female / Humans / Infant, Newborn / Pregnancy Language: Portuguese Year: 2003 Type: Thesis