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. 1981 Jun;1(6):560–567. doi: 10.1128/mcb.1.6.560

Enhanced internalization of ricin in nigericin-pretreated Chinese hamster ovary cells.

B Ray 1, H C Wu 1
PMCID: PMC369699  PMID: 6965109

Abstract

Biochemical and electron microscopic autoradiographic studies with [125I] ricin have revealed that nigericin-pretreated Chinese hamster ovary cells are more efficient than untreated cells in the internalization of the toxin into the cells. These results suggest that the enhanced rate of internalization of ricin in nigericin-pretreated cells may account for the enhancement of cytotoxicity of ricin in Chinese hamster ovary cells by nigericin.

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Selected References

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  1. Gonatas N. K., Steiber A., Kim S. U., Graham D. I., Avrameas S. Internalization of neuronal plasma membrane ricin receptors into the Golgi apparatus. Exp Cell Res. 1975 Sep;94(2):426–431. doi: 10.1016/0014-4827(75)90508-x. [DOI] [PubMed] [Google Scholar]
  2. Hedblom M. L., Cawley D. B., Boguslawski S., Houston L. L. Binding of ricin A chain to rat liver ribosomes: relationship to ribosome inactivation. J Supramol Struct. 1978;9(2):253–268. doi: 10.1002/jss.400090210. [DOI] [PubMed] [Google Scholar]
  3. Klotz I. M., Hunston D. L. Properties of graphical representations of multiple classes of binding sites. Biochemistry. 1971 Aug 3;10(16):3065–3069. doi: 10.1021/bi00792a013. [DOI] [PubMed] [Google Scholar]
  4. Middlebrook J. L., Dorland R. B. Differential chemical protection of mammalian cells from the exotoxins of Corynebacterium diphtheriae and Pseudomonas aeruginosa. Infect Immun. 1977 Apr;16(1):232–239. doi: 10.1128/iai.16.1.232-239.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Nicolson G. L., Lacorbiere M., Hunter T. R. Mechanism of cell entry and toxicity of an affinity- purified lectin from Ricinus communis and its differential effects on normal and virus-transformed fibroblasts. Cancer Res. 1975 Jan;35(1):144–155. [PubMed] [Google Scholar]
  6. Oliver J. M., Ukena T. E., Berlin R. D. Effects of phagocytosis and colchicine on the distribution of lectin-binding sites on cell surfaces. Proc Natl Acad Sci U S A. 1974 Feb;71(2):394–398. doi: 10.1073/pnas.71.2.394. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Olsnes S., Refsnes K., Christensen T. B., Pihl A. Studies on the structure and properties of the lectins from Abrus precatorius and Ricinus communis. Biochim Biophys Acta. 1975 Sep 9;405(1):1–10. doi: 10.1016/0005-2795(75)90308-6. [DOI] [PubMed] [Google Scholar]
  8. Ray B., Wu H. C. Enhancement of cytotoxicities of ricin and Pseudomonas toxin in Chinese hamster ovary cells by nigericin. Mol Cell Biol. 1981 Jun;1(6):552–559. doi: 10.1128/mcb.1.6.552. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Ray B., Wu H. C. Internalization of ricin in Chinese hamster ovary cells. Mol Cell Biol. 1981 Jun;1(6):544–551. doi: 10.1128/mcb.1.6.544. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Salpeter M. M., Fertuck H. C., Salpeter E. E. Resolution in electron microscope autoradiography. III. Iodine-125, the effect of heavy metal staining, and a reassessment of critical parameters. J Cell Biol. 1977 Jan;72(1):161–173. doi: 10.1083/jcb.72.1.161. [DOI] [PMC free article] [PubMed] [Google Scholar]

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