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Cited by 757

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

An activated form of transforming growth factor beta is produced by cocultures of endothelial cells and pericytes.

Open access
Antonelli-Orlidge, A, Saunders, K B, Smith, S R, D'Amore, P A·1989·Proceedings of the National Academy of Sciences

Abstract

Using an in vitro coculture system to mimic the interactions between the cells of the vessel wall, we have previously shown that pericytes and smooth muscle cells (SMC) inhibit the growth of capillary endothelial cells (EC). We have undertaken studies to determine the mechanism of this inhibition. Using conditioned media and affinity-purified antibodies to transforming growth factor beta (TGF-beta), we now demonstrate that activated TGF-beta produced in these cocultures mediates EC growth inhibition. No inhibitory activity was detected when media conditioned by individual cultures of EC, SMC, or pericytes were examined for their effect on EC growth. In contrast, media conditioned by cocultures of EC-SMC and EC-pericytes inhibited EC proliferation to the same degree as the coculture itself. Immunoadsorption of coculture-derived conditioned media with antibodies to TGF-beta eliminated the inhibitory activity. Acid activation of serum-free media conditioned by any of the cells cultured alone yielded inhibitory activity, whereas activation of coculture conditioned media did not increase its inhibitory activity. Addition of anti-TGF-beta neutralizing antibodies to cocultures blocked the pericyte-mediated EC growth inhibition. These results indicate that latent TGF-beta is produced by these cells and it is activated by a mechanism that requires contact between the two cell types.

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Metadata

Authors
Antonelli-Orlidge, A., Saunders, K. B., Smith, S. R., & D'Amore, P. A.
Venue
Proceedings of the National Academy of Sciences
Published
1989-06
Volume
86
Issue
12
Pages
4544-4548
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2092671785
Cited by
757
References
1
FWCI
14.88
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: An activated form of transforming growth factor beta is produced by cocultures of endothelial cells and pericytes. https://app.cochat.ai/papers/10.1073/pnas.86.12.4544
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Antonelli-Orlidge, A., Saunders, K. B., Smith, S. R., & D'Amore, P. A. (1989). An activated form of transforming growth factor beta is produced by cocultures of endothelial cells and pericytes. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.86.12.4544

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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