Metabolic actions of insulin-like growth factor I in cultured glomerular mesangial cells.

Metabolic actions of insulin-like growth factor I in cultured glomerular mesangial cells.
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胰岛素样生长因子 I 在培养的肾小球系膜细胞中的代谢作用。

DOI:
10.1016/0026-0495(91)90034-t
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发表时间:
1991
期刊:
Metabolism: clinical and experimental
影响因子:
--
通讯作者:
Y. Shigeta
Y. Shigeta
中科院分区:
--
文献类型:
--
作者:
M. Haneda;R. Kikkawa;M. Togawa;D. Koya;N. Kajiwara;Y. Shigeta

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据报道,培养的肾小球系膜细胞具有相当数量的胰岛素样生长因子-I(IGF-I)特异性受体,而胰岛素特异性受体数量很少。为了探讨IGF-I对系膜细胞的急性代谢作用,在IGF-I或胰岛素存在的情况下,测定了对葡萄糖和氨基酸的摄取。胰岛素样生长因子-I可促进系膜细胞对[U-14C]葡萄糖掺入、2-脱氧[1-3H]葡萄糖摄取和α-[甲基-~3H]氨基异丁酸摄取,分别增加139.8%±2.1%、116.6%±1.7%和214.9%±12.8%。胰岛素刺激上述摄取系统的ED50分别为9.98±2.36、3.45±1.86和3.35±0.40 ng/m L,明显低于胰岛素刺激的ED50(分别为120.8±2 8.5、61.8±7.7和76.3±17.5)。这些结果表明,在培养的肾小球系膜细胞中,IGF-I可能通过其自身的受体诱导急性代谢效应。
Glomerular mesangial cells in culture have been reported to possess a considerable number of receptors specific to insulin-like growth factor I (IGF-I), with very small number of receptors specific to insulin. To explore acute metabolic effects of IGF-I on mesangial cells, uptake of glucose and amino acid was measured in the presence of IGF-I or insulin. IGF-I stimulatedd-[U-14C]glucose incorporation, 2-deoxy[1-3H]glucose uptake and α-[methyl-3H]aminoisobutylic acid (AIB) uptake into cultured mesangial cells by 139.8% ± 2.1%, 116.6% ± 1.7%, and 214.9% ± 12.8% (percent of basal), respectively. Similar maximal stimulation was also induced by insulin, while the ED50of IGF-I to stimulate these uptake systems (9.98 ± 2.36, 3.45 ± 1.86, and 3.35 ± 0.40 ng/mL, respectively) was significantly lower than that of insulin (120.8 ± 28.5, 61.8 ± 7.7, and 76.3 ± 17.5, respectively). These results indicate that, in cultured glomerular mesangial cells, IGF-I induces acute metabolic effects, possibly through its own receptors.
培养的人体肌肉细胞中的胰岛素和胰岛素样生长因子受体和反应。
DOI: 10.1152/ajpendo.1986.251.5.e611
发表时间: 1986
期刊: The American journal of physiology
影响因子: --
作者:
Shimizu,M;Webster,C;Morgan,DO;Blau,HM;Roth,RA
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DOI: 10.1002/jcp.1041400120
发表时间: 1989
影响因子: 5.6
作者:
Mohan,S;Linkhart,T;Rosenfeld,R;Baylink,D
通讯作者: Baylink,D
大鼠肾小球系膜细胞中胰岛素和 IGF-I 的受体及其作用。
DOI: 10.1152/ajpcell.1988.254.3.c411
发表时间: 1988
期刊: The American journal of physiology
影响因子: --
作者:
Arnqvist,HJ;Ballermann,BJ;King,GL
通讯作者: King,GL
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DOI: --
发表时间: 1987
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
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通讯作者: Hoover,RL