High-molecular weight kininogen is present in cultured human endothelial cells: localization, isolation, and characterization.
High-molecular weight kininogen is present in cultured human endothelial cells: localization, isolation, and characterization.
复制标题
高分子量激肽原存在于培养的人内皮细胞中:定位、分离和表征。
作者:
F. van Iwaarden;P. D. de Groot;J. Sixma;M. Berrettini;B. Bouma
The presence of high-molecular weight (mol wt) kininogen was demonstrated in cultured human endothelial cells derived from the umbilical cord by immunofluorescence techniques. Cultured human endothelial cells contain 58 +/- 11 ng (n = 16) high-mol wt kininogen/10(6) cells as determined by an enzyme-linked immunosorbent assay (ELISA) specific for high-mol wt kininogen. High-mol wt kininogen was isolated from cultured human endothelial cells by immunoaffinity chromatography. Nonreduced sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) demonstrated that endothelial cell high-mol wt kininogen consisted of five protein bands with mol wts of 95,000, 85,000, 65,000, 46,000, and 30,000 daltons. Immunoblotting of the endothelial cell high-mol wt kininogen by using specific antisera against the heavy and light chain indicated that the 95,000-, 85,000-, and 65,000-dalton bands consisted of the heavy and light chain whereas the 46,000- and 30,000-dalton bands reacted only with the anti-light chain antiserum. Immunoprecipitation studies performed with lysed, metabolically labeled endothelial cells and monospecific antisera directed against high-mol wt kininogen suggested that high-mol wt kininogen is not synthesized by the endothelial cells. Endothelial cells cultured in high-mol wt kininogen-free medium did not contain high-mol wt kininogen. These studies indicate that endothelial cell high-mol wt kininogen was proteolytically cleaved in the culture medium and subsequently internalized by the endothelial cells. Binding and internalization studies performed with 125I-labeled, proteolytically cleaved, high-mol wt kininogen showed that endothelial cells can indeed bind and internalize proteolytically cleaved high-mol wt kininogen in a specific and saturable way.
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影响因子:
20.3
作者:
Berrettini,M;Lämmle,B;White,T;Heeb,MJ;Schwarz,HP;Zuraw,B;Curd,J;Griffin,JH
通讯作者:
Griffin,JH
DOI:
--
发表时间:
1980
期刊:
The Journal of laboratory and clinical medicine
影响因子:
--
作者:
Bouma,BN;Kerbiriou,DM;Vlooswijk,RA;Griffin,JH
通讯作者:
Griffin,JH
DOI:
10.1073/pnas.82.8.2523
发表时间:
1985
影响因子:
11.1
作者:
Stern,D;Nawroth,P;Handley,D;Kisiel,W
通讯作者:
Kisiel,W
DOI:
10.1172/jci111685
发表时间:
1985
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Stern,D;Nawroth,P;Marcum,J;Handley,D;Kisiel,W;Rosenberg,R;Stern,K
通讯作者:
Stern,K
DOI:
10.1073/pnas.81.3.913
发表时间:
1984
影响因子:
11.1
作者:
Stern,DM;Drillings,M;Kisiel,W;Nawroth,P;Nossel,HL;LaGamma,KS
通讯作者:
LaGamma,KS