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KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition
Metabolic reprogramming in cancer cells can create metabolic liabilities. KEAP1-mutant lung cancer is refractory to most current therapies. Here we show that KEAP1 deficiency promotes glucose dependency in lung cancer cells, and KEAP1-mutant/deficient lung cancer cells are more vulnerable to glucose...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8193145/ https://www.ncbi.nlm.nih.gov/pubmed/34151236 http://dx.doi.org/10.1016/j.isci.2021.102649 |
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author | Koppula, Pranavi Olszewski, Kellen Zhang, Yilei Kondiparthi, Lavanya Liu, Xiaoguang Lei, Guang Das, Molina Fang, Bingliang Poyurovsky, Masha V. Gan, Boyi |
author_facet | Koppula, Pranavi Olszewski, Kellen Zhang, Yilei Kondiparthi, Lavanya Liu, Xiaoguang Lei, Guang Das, Molina Fang, Bingliang Poyurovsky, Masha V. Gan, Boyi |
author_sort | Koppula, Pranavi |
collection | PubMed |
description | Metabolic reprogramming in cancer cells can create metabolic liabilities. KEAP1-mutant lung cancer is refractory to most current therapies. Here we show that KEAP1 deficiency promotes glucose dependency in lung cancer cells, and KEAP1-mutant/deficient lung cancer cells are more vulnerable to glucose deprivation than their WT counterparts. Mechanistically, KEAP1 inactivation in lung cancer cells induces constitutive activation of NRF2 transcription factor and aberrant expression of NRF2 target cystine transporter SLC7A11; under glucose limitation, high cystine uptake in KEAP1-inactivated lung cancer cells stimulates toxic intracellular disulfide buildup, NADPH depletion, and cell death, which can be rescued by genetic ablation of NRF2-SLC7A11 axis or treatments inhibiting disulfide accumulation. Finally, we show that KEAP1-inactivated lung cancer cells or xenograft tumors are sensitive to glucose transporter inhibitor. Together, our results reveal that KEAP1 deficiency induces glucose dependency in lung cancer cells and uncover a therapeutically relevant metabolic liability. |
format | Online Article Text |
id | pubmed-8193145 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-81931452021-06-17 KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition Koppula, Pranavi Olszewski, Kellen Zhang, Yilei Kondiparthi, Lavanya Liu, Xiaoguang Lei, Guang Das, Molina Fang, Bingliang Poyurovsky, Masha V. Gan, Boyi iScience Article Metabolic reprogramming in cancer cells can create metabolic liabilities. KEAP1-mutant lung cancer is refractory to most current therapies. Here we show that KEAP1 deficiency promotes glucose dependency in lung cancer cells, and KEAP1-mutant/deficient lung cancer cells are more vulnerable to glucose deprivation than their WT counterparts. Mechanistically, KEAP1 inactivation in lung cancer cells induces constitutive activation of NRF2 transcription factor and aberrant expression of NRF2 target cystine transporter SLC7A11; under glucose limitation, high cystine uptake in KEAP1-inactivated lung cancer cells stimulates toxic intracellular disulfide buildup, NADPH depletion, and cell death, which can be rescued by genetic ablation of NRF2-SLC7A11 axis or treatments inhibiting disulfide accumulation. Finally, we show that KEAP1-inactivated lung cancer cells or xenograft tumors are sensitive to glucose transporter inhibitor. Together, our results reveal that KEAP1 deficiency induces glucose dependency in lung cancer cells and uncover a therapeutically relevant metabolic liability. Elsevier 2021-05-25 /pmc/articles/PMC8193145/ /pubmed/34151236 http://dx.doi.org/10.1016/j.isci.2021.102649 Text en © 2021 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Koppula, Pranavi Olszewski, Kellen Zhang, Yilei Kondiparthi, Lavanya Liu, Xiaoguang Lei, Guang Das, Molina Fang, Bingliang Poyurovsky, Masha V. Gan, Boyi KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title | KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title_full | KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title_fullStr | KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title_full_unstemmed | KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title_short | KEAP1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to GLUT inhibition |
title_sort | keap1 deficiency drives glucose dependency and sensitizes lung cancer cells and tumors to glut inhibition |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8193145/ https://www.ncbi.nlm.nih.gov/pubmed/34151236 http://dx.doi.org/10.1016/j.isci.2021.102649 |
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