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Cited by 598

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

PROTEIN DEGRADATION IN CULTURED CELLS

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Wibo, Maurice, Poole, Brian·1974·The Journal of Cell Biology

Abstract

The degradation of cellular proteins in fibroblasts, both those of rapid and those of slow turnover rates, was inhibited by low concentrations of chloroquine or neutral red in the medium. Cells inhibited by chloroquine can be inhibited further by fluoride. Chloroquine was taken up by the fibroblasts and the concentration in the cells reached several hundred times that in the medium. Isopycnic fractionation studies showed that within the cells the chloroquine was concentrated in the lysosomes, and that these chloroquine-containing lysosomes had a lower equilibrium density than the lysosomes of untreated cells. Chloroquine, at concentrations attained inside the lysosomes, inhibited cathepsin B1 but not cathepsin D. It is concluded that chloroquine impairs the breakdown of cellular proteins after these have entered the lysosome system, probably through inhibition of cathepsin B1.

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Cites

  • Functions of Lysosomes

    de Duve, C., & Wattiaux, R. (1966) · Annual Review of Physiology · doi:10.1146/annurev.ph.28.030166.002251 · Cited by 3,033 · cited 2×

    “The lysosomal pH (8, 13) can account for an extensive accumulation of a weak base such as chloroquine (12) inside these particles.”
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Metadata

Authors
Wibo, M., & Poole, B.
Venue
The Journal of Cell Biology
Published
1974-11-01
Volume
63
Issue
2
Pages
430-440
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2095894333
Cited by
598
References
1
FWCI
24.41
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: PROTEIN DEGRADATION IN CULTURED CELLS. https://app.cochat.ai/papers/10.1083/jcb.63.2.430
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Wibo, M., & Poole, B. (1974). PROTEIN DEGRADATION IN CULTURED CELLS. The Journal of Cell Biology. https://doi.org/10.1083/jcb.63.2.430

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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.