The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
Cystine transporter regulation of pentose phosphate pathway dependency and disulfide stress exposes a targetable metabolic vulnerability in cancer
Open accessAbstract
SLC7A11-mediated cystine uptake is critical for maintaining redox balance and cell survival. Here we show that this comes at a significant cost for cancer cells with high levels of SLC7A11. Actively importing cystine is potentially toxic due to its low solubility, forcing cancer cells with high levels of SLC7A11 (SLC7A11 high ) to constitutively reduce cystine to the more soluble cysteine. This presents a significant drain on the cellular NADPH pool and renders such cells dependent on the pentose phosphate pathway. Limiting glucose supply to SLC7A11 high cancer cells results in marked accumulation of intracellular cystine, redox system collapse and rapid cell death, which can be rescued by treatments that prevent disulfide accumulation. We further show that inhibitors of glucose transporters selectively kill SLC7A11 high cancer cells and suppress SLC7A11 high tumour growth. Our results identify a coupling between SLC7A11-associated cystine metabolism and the pentose phosphate pathway, and uncover an accompanying metabolic vulnerability for therapeutic targeting in SLC7A11 high cancers. Liu et al. show that cancer cells with high levels of SLC7A11 have increased dependency on the pentose phosphate pathway and consequently accumulate disulfide, and can be therapeutically targeted by limiting glucose supply.
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Cites
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Self-citationmTORC1 couples cyst(e)ine availability with GPX4 protein synthesis and ferroptosis regulation
Zhang, Y., Swanda, R. V., Nie, L., Liu, X., Wang, C., Lee, H., Lei, G., Mao, C., Koppula, P., Cheng, W., et al. (2021) · Nature Communications · doi:10.1038/s41467-021-21841-w · Cited by 698
Self-citationFerroptosis in cancer and cancer immunotherapy
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SLC7A11 expression level dictates differential responses to oxidative stress in cancer cells
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Self-citationDisulfidptosis: a new target for metabolic cancer therapy
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Metadata
- Authors
- Liu, X., Olszewski, K., Zhang, Y., Lim, E. W., Shi, J., Zhang, X., Zhang, J., Lee, H., Koppula, P., Lei, G., Zhuang, L., You, M. J., Fang, B., Li, W., Metallo, C. M., Poyurovsky, M. V., & Gan, B.
- Venue
- Nature Cell Biology
- Published
- 2020-03-30
- Volume
- 22
- Issue
- 4
- Pages
- 476-486
- ISSN
- 1465-7392 (ISSN-L)
- 1476-4679
- OpenAlex
- W3013936205
- Cited by
- 589
- References
- 12
- FWCI
- 14.74
- Type
- journal article
- Language
- en
- Open access
- green
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- Liu, X., Olszewski, K., Zhang, Y., Lim, E. W., Shi, J., Zhang, X., Zhang, J., Lee, H., Koppula, P., Lei, G., Zhuang, L., You, M. J., Fang, B., Li, W., Metallo, C. M., Poyurovsky, M. V., & Gan, B. (2020). Cystine transporter regulation of pentose phosphate pathway dependency and disulfide stress exposes a targetable metabolic vulnerability in cancer. Nature Cell Biology. https://doi.org/10.1038/s41556-020-0496-x
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