What question did this study set out to answer?

To examine the relationship between proliferative states and proteoglycan synthesis in arterial smooth muscle cells.

October 1, 1989American Review of Respiratory Disease

Proteoglycans and Vascular Cell Proliferation

View Full Paper

Ask AI

Bookmark

To examine the relationship between proliferative states and proteoglycan synthesis in arterial smooth muscle cells.
Cultured monkey aortic smooth muscle cells were rendered quiescent in 0.1% serum medium and stimulated to divide with platelet-derived growth factor (PDGF) or 5% serum medium.
Assayed proteoglycan synthesis and composition by measuring [35S]sulfate incorporation over the first 24 hours of stimulation.
Treated cells with p-nitrophenyl beta-D-xyloside, heparin, or TGF-beta to determine the effects of proteoglycan perturbation and growth inhibition on cellular division and sulfate incorporation.
Growth stimulation with PDGF or 5% serum increased [35S]sulfate incorporation into proteoglycans within the first 24 hours, predominantly in large chondroitin sulfate proteoglycans.
Disruption of proteoglycan metabolism using p-nitrophenyl beta-D-xyloside inhibited cell proliferation.
Inhibition of cell proliferation using heparin, TGF-beta, or both caused elevated [35S]sulfate incorporation into proteoglycans.

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

In vitro study reveals modulation of proteoglycan synthesis during growth stimulation and arrest in aortic smooth muscle cells, suggesting proteoglycans regulate vascular cell division.

Cite This Study

Wight et al. (1989) studied this question.

synapsesocial.com/papers/6a910546152a692a9d92e12f https://doi.org/10.1164/ajrccm/140.4.1132

View Full Paper

Ask AI

Bookmark

Implication

In vitro study reveals modulation of proteoglycan synthesis during growth stimulation and arrest in aortic smooth muscle cells, suggesting proteoglycans regulate vascular cell division.

Proteoglycans and Vascular Cell Proliferation

Key Points

Discussion

Implication

Cite This Study

Proteoglycans and Vascular Cell Proliferation

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider