Abstract
The third component of complement (C3) is synthesized and released by cultured human capillary endothelial cells. After the incubation of cells in a methionine-free medium containing 35S-methionine for 48 hr, culture supernatants were immunoprecipitated with anti-human C3 serum. SDS solubilization and 2-ME reduction of the immunoprecipitates, followed by separation with SDS-polyacrylamide gel electrophoresis and autoradiography, revealed two major bands comparable to those of the alpha and beta chains of human C3. The content of C3 in the culture medium harvested at different time-intervals was determined by ELISA. The C3 secretion rate was about 250 ng/10(6) cells/5 days in the primary culture medium and 75 ng/10(6) cells/5 days after seven passages. The capillary endothelial cells described here have factor VIIIRAg specific for endothelial cells, and exhibit ring formation resembling capillary lumina, but they lack Weibel-Palade bodies.
Full text
PDFImages in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Alper C. A., Johnson A. M., Birtch A. G., Moore F. D. Human C'3: evidence for the liver as the primary site of synthesis. Science. 1969 Jan 17;163(3864):286–288. doi: 10.1126/science.163.3864.286. [DOI] [PubMed] [Google Scholar]
- Arnason A., Larsen B., Marshall W. H., Edwards J. H., Macintosh P., Olaisen B., Teisberg P. Very close linkage between HLA-B and Bf inferred from allelic association. Nature. 1977 Aug 11;268(5620):527–528. doi: 10.1038/268527a0. [DOI] [PubMed] [Google Scholar]
- Bokisch V. A., Dierich M. P., Mūller-Eberhard H. J. Third component of complement (C3): structural properties in relation to functions. Proc Natl Acad Sci U S A. 1975 Jun;72(6):1989–1993. doi: 10.1073/pnas.72.6.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Brade V., Hall R. E., Colten H. R. Biosynthesis of pro-C3, a precursor of the third component of complement. J Exp Med. 1977 Sep 1;146(3):759–765. doi: 10.1084/jem.146.3.759. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Colten H. R., Ooi Y. M., Edelson P. J. Synthesis and secretion of complement proteins by macrophages. Ann N Y Acad Sci. 1979;332:482–490. doi: 10.1111/j.1749-6632.1979.tb47142.x. [DOI] [PubMed] [Google Scholar]
- DiCorleto P. E. Cultured endothelial cells produce multiple growth factors for connective tissue cells. Exp Cell Res. 1984 Jul;153(1):167–172. doi: 10.1016/0014-4827(84)90458-0. [DOI] [PubMed] [Google Scholar]
- Einstein L. P., Hansen P. J., Ballow M., Davis A. E., 3rd, Davis J. S., 4th, Alper C. A., Rosen F. S., Colten H. R. Biosynthesis of the third component of complement (C3) in vitro by monocytes from both normal and homozygous C3-deficient humans. J Clin Invest. 1977 Nov;60(5):963–969. doi: 10.1172/JCI108876. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Folkman J., Haudenschild C. Angiogenesis in vitro. Nature. 1980 Dec 11;288(5791):551–556. doi: 10.1038/288551a0. [DOI] [PubMed] [Google Scholar]
- Fu S. M., Kunkel H. G., Brusman H. P., Allen F. H., Jr, Fotino M. Evidence for linkage between HL-A histocompatibility genes and those involved in the synthesis of the second component of complement. J Exp Med. 1974 Oct 1;140(4):1108–1111. doi: 10.1084/jem.140.4.1108. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gajdusek C., DiCorleto P., Ross R., Schwartz S. M. An endothelial cell-derived growth factor. J Cell Biol. 1980 May;85(2):467–472. doi: 10.1083/jcb.85.2.467. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gedde-Dahl T., Jr, Teisberg P., Thorsby E. C3 polymorphism: genetic linkage relations. Clin Genet. 1974;6(1):66–72. doi: 10.1111/j.1399-0004.1974.tb00632.x. [DOI] [PubMed] [Google Scholar]
- Gimbrone M. A., Jr, Alexander R. W. Angiotensin II stimulation of prostaglandin production in cultured human vascular endothelium. Science. 1975 Jul 18;189(4198):219–220. doi: 10.1126/science.1138377. [DOI] [PubMed] [Google Scholar]
- Goldberger G., Thomas M. L., Tack B. F., Williams J., Colten H. R., Abraham G. N. NH2-terminal structure and cleavage of guinea pig pro-C3, the precursor of the third complement component. J Biol Chem. 1981 Dec 25;256(24):12617–12619. [PubMed] [Google Scholar]
- Hall R. E., Colten H. R. Cell-free synthesis of the fourth component of guinea pig complement (C4): identification of a precursor of serum C4 (pro-C4). Proc Natl Acad Sci U S A. 1977 Apr;74(4):1707–1710. doi: 10.1073/pnas.74.4.1707. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Howard B. V., Macarak E. J., Gunson D., Kefalides N. A. Characterization of the collagen synthesized by endothelial cells in culture. Proc Natl Acad Sci U S A. 1976 Jul;73(7):2361–2364. doi: 10.1073/pnas.73.7.2361. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Jaffe E. A. Endothelial cells and the biology of factor VIII. N Engl J Med. 1977 Feb 17;296(7):377–383. doi: 10.1056/NEJM197702172960707. [DOI] [PubMed] [Google Scholar]
- Jaffe E. A., Hoyer L. W., Nachman R. L. Synthesis of antihemophilic factor antigen by cultured human endothelial cells. J Clin Invest. 1973 Nov;52(11):2757–2764. doi: 10.1172/JCI107471. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
- Misumi Y., Takami N., Ikehara Y. Biosynthesis and processing of pro-C3, a precursor of the third component of complement in rat hepatocytes: effect of secretion-blocking agents. FEBS Lett. 1984 Sep 17;175(1):63–67. doi: 10.1016/0014-5793(84)80570-0. [DOI] [PubMed] [Google Scholar]
- Ramadori G., Rasokat H., Burger R., Meyer Zum Büschenfelde K. H., Bitter-Suermann D. Quantitative determination of complement components produced by purified hepatocytes. Clin Exp Immunol. 1984 Jan;55(1):189–196. [PMC free article] [PubMed] [Google Scholar]
- Teisberg P., Olaisen B., Jonassen R., Gedde-Dahl T., Jr, Thorsby E. The genetic polymorphism of the fourth component of human complement: methodological aspects and a presentation of linkage and association data relevant to its localization in the HLA region. J Exp Med. 1977 Nov 1;146(5):1380–1389. doi: 10.1084/jem.146.5.1380. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tokunaga O., Morimatsu M., Nakashima T. Ring formation by human variant endothelial cells in vitro. Br J Exp Pathol. 1984 Apr;65(2):165–170. [PMC free article] [PubMed] [Google Scholar]
- Whitehead A. S., Solomon E., Chambers S., Bodmer W. F., Povey S., Fey G. Assignment of the structural gene for the third component of human complement to chromosome 19. Proc Natl Acad Sci U S A. 1982 Aug;79(16):5021–5025. doi: 10.1073/pnas.79.16.5021. [DOI] [PMC free article] [PubMed] [Google Scholar]