Differential Distribution of Insulin-Like Growth Factor-1 and Insulin-Like Growth Factor Binding Proteins in Experimental Diabetic Rat Kidney

Differential Distribution of Insulin-Like Growth Factor-1 and Insulin-Like Growth Factor Binding Proteins in Experimental Diabetic Rat Kidney
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实验性糖尿病大鼠肾脏中胰岛素样生长因子-1 和胰岛素样生长因子结合蛋白的差异分布

DOI:
10.1159/000045299
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发表时间:
1999
期刊:
影响因子:
2.5
通讯作者:
H. Makino
H. Makino
中科院分区:
医学4区
文献类型:
--
作者:
N. Miyatake;K. Shikata;J. Wada;H. Sugimoto;Shinobu Takahashi;H. Makino

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胰岛素样生长因子-1 (IGF-1) 是一种肽生长因子,其活性通过与 IGF 结合蛋白家族(IGFBP-1 至 6)的相互作用进行调节。 IGF-1 在大鼠肾脏中检测到,具有代谢和生长作用。为了探讨 IGFBP 在链脲佐菌素 (STZ) 诱导的糖尿病大鼠肾小球肥大中的可能作用,对 IGF-1 和 IGFBP 的免疫定位进行了研究。糖尿病大鼠肾小球中IGF-1逐渐增加,并与肾小球肥大相关。 IGFBP-1 在 STZ 注射后 1 周短暂升高,并在随后的一段时间内下降至对照水平。相反,在整个观察期间,糖尿病肾小球中的 IGFBP-4 增加。通过胰岛素治疗,IGF-1、IGFBP-1 和 4 的水平恢复正常,肾小球肥大得到预防。糖尿病肾病的初始肾小球肥大与 IGF-1 的作用有关,可能受到 IGFBP-1 和 4 的调节。
Insulin-like growth factor-1 (IGF-1) is a peptide growth factor, and its activity is modulated by interaction with the family of IGF binding proteins (IGFBP-1 to 6). IGF-1 is detected in rat kidney and has metabolic and growth effects. To explore the possible involvement of IGFBPs in glomerular hypertrophy in streptozotocin (STZ)-induced diabetic rat, the immunolocalization of IGF-1 and IGFBPs were investigated. IGF-1 was gradually increased in the glomeruli of diabetic rats and correlated with glomerular hypertrophy. IGFBP-1 was transiently increased at 1 week after the STZ injection and declined to control level during the following period. In contrast, IGFBP-4 was increased in the diabetic glomeruli throughout the observation period. With insulin treatment, the levels of IGF-1, IGFBP-1 and 4 were normalized and glomerular hypertrophy was prevented. Initial glomerular hypertrophy of diabetic nephropathy is a related IGF-1 action, which may be modulated by IGFBP-1 and 4.
胰岛素样生长因子结合蛋白与胰岛素样生长因子 I 的共定位。
DOI: 10.1152/ajprenal.1991.261.1.f22
发表时间: 1991
期刊: The American journal of physiology
影响因子: --
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DOI: 10.1210/endo.133.4.7691578
发表时间: 1993
期刊: Endocrinology
影响因子: 4.8
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DOI: 10.1210/jcem.80.2.7531715
发表时间: 1995
期刊: The Journal of clinical endocrinology and metabolism.
影响因子: --
作者:
Irwin,JC;Dsupin,BA;Giudice,LC
通讯作者: Giudice,LC
DOI: --
发表时间: 1992-06
期刊: Growth regulation
影响因子: --
作者:
D. R. Clemmons
通讯作者: D. R. Clemmons