Beta-adrenergic receptor kinase-1 acutely regulates PTH/PTHrP receptor signalling in human osteoblastlike cells.

Beta-adrenergic receptor kinase-1 acutely regulates PTH/PTHrP receptor signalling in human osteoblastlike cells.
复制标题

β-肾上腺素能受体激酶-1 敏锐地调节人成骨细胞样细胞中的 PTH/PTHrP 受体信号传导。

DOI:
10.1016/s0898-6568(97)00044-2
复制
发表时间:
1997
影响因子:
4.8
通讯作者:
TashjianJr,AH
TashjianJr,AH
中科院分区:
生物学2区
文献类型:
--
作者:
Fukayama,S;Kong,G;Benovic,JL;Meurer,E;TashjianJr,AH

文献摘要

参考文献

被引文献

相似文献

为了研究G蛋白偶联受体激酶(GRKs)是否参与PTH/PTHrPR的调节,我们建立了稳定过表达(> 10-20倍)β-肾上腺素能受体激酶-1(β方舟-1)的显性负性形式的突变SaOS-2细胞。与野生型细胞相比,在β方舟-1突变SaOS-2细胞中,与hPTH(1-34)急性(≤ 2 h)孵育诱导的PTH/PTHrPR下调显著更少(高达50%)。用PTH预处理野生型细胞2 h可诱导同源cAMP脱敏,而在β方舟-1突变细胞中,这种作用减弱了60%。我们的结论是,β方舟-1(或密切相关的GRK)的激活是PTH诱导的受体下调和PTH/PTHrPR的同源cAMP脱敏的急性期(≤ 2 h)的关键组成部分。
To investigate whether G protein-coupled receptor kinases (GRKs) are involved in the regulation of the PTH/PTHrPR, we have established mutant SaOS-2 cells which stably overexpress (> 10–20-fold) a dominant negative form of the β-adrenergic receptor kinase-1 (βARK-1). Acute (≤ 2 h) incubation with hPTH (1–34) induced significantly less (by up to 50%) downregulation of the PTH/PTHrPR in βARK-1 mutant SaOS-2 cells than observed in wild-type cells. Pretreatment of wild-type cells with PTH for 2 h induced homologous cAMP desensitisation to a second challenge with PTH, while the effect was blunted by up to 60% in βARK-1 mutant cells. We conclude that activation of βARK-1 (or a closely related GRK) is a critical component of the acute phase (≤ 2 h) of PTH-induced receptor downregulation and homologous cAMP desensitisation of the PTH/PTHrPR.
PTH 和地塞米松下调负鼠肾细胞中的甲状旁腺 (PTH)/PTH 相关肽受体免疫反应性和 PTH 结合。
DOI: 10.1210/endo.135.6.7988447
发表时间: 1994
期刊: Endocrinology
影响因子: 4.8
作者:
Abou-Samra,AB;Goldsmith,PK;Xie,LY;Juppner,H;Spiegel,AM;Segre,GV
通讯作者: Segre,GV
DOI: 10.1073/pnas.83.9.2797
发表时间: 1986-05-01
影响因子: 11.1
作者:
BENOVIC, JL;STRASSER, RH;LEFKOWITZ, RJ
通讯作者: LEFKOWITZ, RJ
人成骨细胞样 SaOS-2 细胞对甲状旁腺激素脱敏的机制。
DOI: 10.1210/endo.131.4.1396321
发表时间: 1992
期刊: Endocrinology
影响因子: 4.8
作者:
Fukayama,S;TashjianJr,AH;Bringhurst,FR
通讯作者: Bringhurst,FR
克隆大鼠骨肉瘤细胞中甲状旁腺激素受体的表征和激动剂诱导的下调。
DOI: 10.1210/endo-122-4-1208
发表时间: 1988
期刊: Endocrinology
影响因子: 4.8
作者:
I. Yamamoto;C. Shigeno;J. Potts;G. Segre
通讯作者: G. Segre
DOI: 10.1073/pnas.90.8.3665
发表时间: 1993-04-15
影响因子: 11.1
作者:
LIGGETT, SB;FREEDMAN, NJ;LEFKOWITZ, RJ
通讯作者: LEFKOWITZ, RJ