The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Latent transforming growth factor-beta from human platelets. A high molecular weight complex containing precursor sequences.
Open accessAbstract
Human platelets, when induced to degranulate by thrombin, secrete transforming growth factor-beta (TGF-beta) in a biologically latent form. In this form, TGF-beta cannot bind to its cellular receptor, nor can it be immunoprecipitated by polyclonal antisera to TGF-beta, suggesting that the receptor-binding site and other TGF-beta epitopes may be masked. Western blot analysis of the platelet secretate indicates that the latent form of TGF-beta is a 220-235 kDa complex, in which mature TGF-beta (25 kDa) is noncovalently associated with sequences from the remainder of the precursor (74 kDa), and a third unidentified entity (approximately 135 kDa). The third component is immunologically unrelated to other growth factor binding proteins. The complex is glycosylated, and gel filtration analysis suggests it may exist in solution as higher molecular weight aggregates. Further chromatographic analysis indicates that in its latent form, the platelet TGF-beta cannot bind to alpha 2-macroglobulin (alpha 2M), but that if the platelet latent TGF-beta is activated by transient acidification, the released active TGF-beta will bind to alpha 2M. We have previously identified the latent form of TGF-beta found in serum as an alpha 2M.TGF-beta complex (O'Connor-McCourt, M. D., and Wakefield, L. M. (1987) J. Biol. Chem. 262, 14090-14099). We now propose that the latent TGF-beta secreted by platelets may be a cellular delivery complex, whereas the latent form found in serum may represent a clearance complex. Thus alpha 2M may scavenge excess TGF-beta that is released when the platelet latent form is activated, possibly by the clotting process. Finally, we have shown that the latent form of TGF-beta secreted by a variety of cell types in culture is similar, if not identical to that secreted by platelets.
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Cites
Bradford, M. M. (1976) · Analytical Biochemistry · doi:10.1016/0003-2697(76)90527-3 · Cited by 255,302
Stimulation of the chemotactic migration of human fibroblasts by transforming growth factor beta.
Postlethwaite, A. E., Keski-Oja, J., Moses, H. L., & Kang, A. H. (1987) · The Journal of experimental medicine · doi:10.1084/jem.165.1.251 · Cited by 777
Cited by
Kulkarni, A. B., Huh, C. G., Becker, D., Geiser, A., Lyght, M., Flanders, K. C., Roberts, A. B., Sporn, M. B., Ward, J. M., & Karlsson, S. (1993) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.90.2.770 · Cited by 1,967
Self-citationSime, P. J., Xing, Z., Graham, F. L., Csaky, K. G., & Gauldie, J. (1997) · Journal of Clinical Investigation · doi:10.1172/jci119590 · Cited by 1,050
Senescence-messaging secretome: SMS-ing cellular stress
Kuilman, T., & Peeper, D. S. (2009) · Nature Reviews Cancer · doi:10.1038/nrc2560 · Cited by 909
Vukicevic, S., Kleinman, H. K., Luyten, F. P., Roberts, A. B., Roche, N. S., & Reddi, A. H. (1992) · Experimental Cell Research · doi:10.1016/0014-4827(92)90397-q · Cited by 696
Okuda, S., Languino, L. R., Ruoslahti, E., & Border, W. A. (1990) · Journal of Clinical Investigation · doi:10.1172/jci114731 · Cited by 546
Metadata
- Authors
- Wakefield, L. M., Smith, D. M., Flanders, K. C., & Sporn, M. B.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 1988-06
- Volume
- 263
- Issue
- 16
- Pages
- 7646-7654
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W1600868878
- Cited by
- 538
- References
- 2
- FWCI
- 19.57
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- Wakefield, L. M., Smith, D. M., Flanders, K. C., & Sporn, M. B. (1988). Latent transforming growth factor-beta from human platelets. A high molecular weight complex containing precursor sequences. Journal of Biological Chemistry. https://doi.org/10.1016/s0021-9258(18)68547-3
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
