pRb2/p130 gene overexpression induces astrocyte differentiation

被引:16
作者
Galderisi, U
Melone, MAB
Jori, FP
Piegari, E
Di Bernardo, G
Cipollaro, M
Cascino, A
Peluso, G
Claudio, PP
Giordano, A
机构
[1] Univ Naples 2, Dept Expt Med, Pharmacol Sect, CRISCEB, I-80138 Naples, Italy
[2] Thomas Jefferson Univ, Jefferson Med Coll, Dept Pathol Anat & Cell Biol, Philadelphia, PA 19107 USA
[3] Sbarro Inst Canc Res & Mol Med, Philadelphia, PA USA
[4] Univ Naples 2, Div Neurol 2, Naples, Italy
[5] Univ Naples Federico II, Dipartimento Sci Odontostomatol & Maxillofacciali, Naples, Italy
[6] CNR, Inst Biochem Prot & Enzymol, Arco Felice Napoli, Naples, Italy
关键词
D O I
10.1006/mcne.2000.0949
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
There are many data on the activity of the RE gene in neural differentiation and apoptosis, but the role of pRb2/p130 in neuronal and glial maturation has been far less investigated. To elucidate the role of pRb2/p130 in astrocyte development we overexpressed this protein in astrocytoma and normal astrocyte cultures by adenoviral-mediated gene transfer. In astrocytoma cells, p130/RB2 overexpression resulted in a significant reduction of cell growth and in an increased G(0)/G(1) cell population. We did not observe any induction of programmed cell death as determined by TUNEL reaction. Interestingly, pRb2/p130 overexpression induced astrocyte differentiation. Astrocyte cell cycle arrest and differentiation seemed to proceed through a way distinct from the p53 pathway.
引用
收藏
页码:415 / 425
页数:11
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