Cited by 1,683Cellular transport and secretionCancer, Hypoxia, and MetabolismPI3K/AKT/mTOR signaling in cancer

The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.

Macropinocytosis of protein is an amino acid supply route in Ras-transformed cells

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Abstract

Macropinocytosis is a highly conserved endocytic process by which extracellular fluid and its contents are internalized into cells through large, heterogeneous vesicles known as macropinosomes. Oncogenic Ras proteins have been shown to stimulate macropinocytosis but the functional contribution of this uptake mechanism to the transformed phenotype remains unknown. Here we show that Ras-transformed cells use macropinocytosis to transport extracellular protein into the cell. The internalized protein undergoes proteolytic degradation, yielding amino acids including glutamine that can enter central carbon metabolism. Accordingly, the dependence of Ras-transformed cells on free extracellular glutamine for growth can be suppressed by the macropinocytic uptake of protein. Consistent with macropinocytosis representing an important route of nutrient uptake in tumours, its pharmacological inhibition compromises the growth of Ras-transformed pancreatic tumour xenografts. These results identify macropinocytosis as a mechanism by which cancer cells support their unique metabolic needs and point to the possible exploitation of this process in the design of anticancer therapies.

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Crossref · 10.1038/nature12138

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Metadata

Authors
Commisso, C., Davidson, S. M., Soydaner-Azeloglu, R. G., Parker, S. J., Kamphorst, J. J., Hackett, S., Grabocka, E., Nofal, M., Drebin, J. A., Thompson, C. B., Rabinowitz, J. D., Metallo, C. M., Vander Heiden, M. G., & Bar-Sagi, D.
Affiliations
  • New York University (US)
  • Koch Institute for Integrative Cancer Research At MIT (US)
  • University of California San Diego (US)
  • Princeton University (US)
  • Hospital of the University of Pennsylvania (US)
  • Memorial Sloan Kettering Cancer Center (US)
Venue
Nature
Published
2013-05-12
Volume
497
Issue
7451
Pages
633-637
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2129917557
Cited by
1,683
References
31
Citations by year
2026: 120 · 2025: 130 · 2024: 130 · 2023: 136 · 2022: 162 · 2021: 186 · 2020: 166 · 2019: 135 · 2018: 129 · 2017: 113 · 2016: 119 · 2015: 79 · 2014: 56 · 2013: 20
FWCI
52.97
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • ENLIGHTEN (Jurnal Bimbingan dan Konseling Islam) (submittedVersion)
Funders
National Cancer Institute (R01CA055360, P01CA104838, R01CA105463, P30CA014051, P01CA117969, P30CA016087, R01CA163591)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › PI3K/AKT/mTOR signaling in cancer
Keywords
macropinocytosis, oncogenic Ras, amino acid supply, glutamine addiction, cancer metabolism, macropinosomes, protein degradation, pancreatic tumours, nutrient uptake, cancer therapy
MeSH terms
Amino Acids, Animals, Biological Transport, Carbon, Cell Line, Transformed, Cell Transformation, Neoplastic, Disease Models, Animal, Female, Glutamine, Mice, Nude, Pancreatic Neoplasms, Pinocytosis, Oncogene Protein p21(ras), NIH 3T3 Cells, Cell Line, Tumor, Cell Proliferation, Mice, Proteolysis

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