Answers are grounded in this paper and cite their sources.
A method is described for the in vitro culture of 17.5-day rat visceral yolk sac. Tissue survival was good as judged by light and electron microscopy. The rate of pinocytic uptake of 125I-labeled polyvinylpyrrolidone by the tissue was constant both within and between experiments. Within the concentration range 0.15-24 mug/ml, the 125I-labeled polyvinylpyrrolidone neither stimulated nor inhibited pinocytosis. The system offers many advantages in the quantitative study of the physical basis of pinocytosis.
No takes yet. Share an insight, caveat, or question.
Williams et al. (1975) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: