Insulin-like growth factors in sheep thyroid cells: action, receptors and production.

Insulin-like growth factors in sheep thyroid cells: action, receptors and production.
复制标题

绵羊甲状腺细胞中的胰岛素样生长因子:作用、受体和产生。

DOI:
10.1016/0006-291x(88)90219-7
复制
发表时间:
1988
影响因子:
3.1
通讯作者:
Burrow,GN
Burrow,GN
中科院分区:
生物学4区
文献类型:
--
作者:
Bachrach,LK;Eggo,MC;Hintz,RL;Burrow,GN

文献摘要

参考文献

被引文献

相似文献

以无血清培养的绵羊甲状腺细胞为材料,研究了胰岛素样生长因子(IGFs)的生物学活性、结合和产生。IGF-I、IGF-II和胰岛素刺激甲状腺细胞分裂。通过结合置换研究确定了羊甲状腺细胞膜上丰富的特异性IGF受体。[125 I]标记的IGF-I和IGF-II与25 μ g膜蛋白的最大特异性结合平均分别为21%和27%。I型和II型IGF受体的存在通过[125 I] IGF共价交联至细胞膜的聚丙烯酰胺凝胶电泳证实。在还原条件下。[125 I]IGF-I与Mr约为135,000的部分结合,[125 I]IGF-II与Mr约为26,000的部分结合。[125 I]IGF-I与甲状腺细胞条件培养基的交联表明存在4种IGF结合蛋白,表观Mr= 34,000、26,000、19,000和14,000。甲状腺细胞也分泌IGF-I和II到培养基中。IGF合成增强一致的重组生长激素。这些数据表明,绵羊甲状腺细胞是IGF的作用,结合和生产的网站,并提供进一步的证据,IGFs可以调节甲状腺生长的自分泌或旁分泌的方式。
Sheep thyroid cells cultured in serum-free medium were used to study the biologic activity, binding, and production of the insulin-like growth factors (IGFs). IGF-I, IGF-II, and insulin stimulated thyroid cell division. Abundant, specific IGF receptors on sheep thyroid cell membranes were identified by binding displacement studies. Maximal specific binding of [125I]-labeled IGF-I and IGF-II to 25 ug of membrane protein averaged 21% and 27% respectively. The presence of type I and type II IGF receptors was confirmed by polyacrylamide gel electrophoresis of [125I]IGFs covalently cross-linked to cell membranes. Under reducing conditions. [125I]IGF-I bound to a moiety of approximate Mr =135,000 and [125I]IGF-II to a moiety of approximate Mr=26,000. Cross-linking of [125I]IGF-I to medium conditioned by thyroid cells indicated the presence of four IGF binding proteins with apparent Mr=34,000, 26,000, 19,000 and 14,000. Thyroid cells also secreted IGF-I and II into the medium. IGF synthesis was enhanced consistently by recombinant growth hormone. These data indicate that sheep thyroid cells are a site for IGF action, binding, and production and provide further evidence that IGFs may modulate thyroid gland growth in an autocrine or paracrine manner.
培养的甲状腺细胞中生长和腺苷酸环化酶活性的关系:促甲状腺素的单独生物效应。
DOI: 10.1210/endo-112-1-71
发表时间: 1983
期刊: Endocrinology
影响因子: 4.8
作者:
W. Valente;P. Vitti;L. Kohn;M. Brandi;C. Rotella;R. Toccafondi;D. Tramontano;S. Aloj;F. Ambesi
通讯作者: F. Ambesi
促甲状腺素和环 AMP 刺激在含有胰岛素的确定培养基中培养的静态犬甲状腺细胞的增殖
DOI: --
发表时间: 1983
期刊: FEBS Letters
影响因子: 3.5
作者:
P. Roger;P. Servais;J. Dumont
通讯作者: J. Dumont
猪甲状腺细胞培养物生长演示。
DOI: --
发表时间: 1979
期刊: Biochimie
影响因子: 3.9
作者:
Guy Fayet;S. Hovsépian
通讯作者: S. Hovsépian
胰岛素样生长因子-I 对胰岛素样生长因子-II 受体亲和力的异质性:天然、合成和重组 DNA 衍生的胰岛素样生长因子-I 的比较。
DOI: 10.1016/0006-291x(87)90650-4
发表时间: 1987
影响因子: 3.1
作者:
Rosenfeld,RG;Conover,CA;Hodges,D;Lee,PD;Misra,P;Hintz,RL;Li,CH
通讯作者: Li,CH
从产生 IGF-II 的细胞系中纯化胰岛素样生长因子 II (IGF-II) 受体,并生成既能免疫沉淀又能阻断 2 型 IGF 受体的抗体。
DOI: 10.1016/0006-291x(86)90280-9
发表时间: 1986
影响因子: 3.1
作者:
Rosenfeld,RG;Hodges,D;Pham,H;Lee,PD;Powell,DR
通讯作者: Powell,DR