{"doi":"10.1096/fj.201800360r","title":"Expression and function of hexose transporters GLUT1, GLUT2, and GLUT5 in breast cancer—effects of hypoxia","abstract":"<jats:title>ABSTRACT</jats:title>\n                  <jats:p>\n                    Elevated growth in breast cancer (BC) activates hypoxia‐inducible factor (HIF1a) and downstream, facilitative glucose transporter 1 (GLUT1), which can be visualized with 2‐deoxy‐2‐[\n                    <jats:sup>18</jats:sup>\n                    F]fluoro‐\n                    <jats:bold>D</jats:bold>\n                    ‐glucose ([\n                    <jats:sup>18</jats:sup>\n                    F]FDG). GLUT5 (fructose) and GLUT2 (glucose/fructose) might provide alternative targets for BC imaging as to why effects of hypoxia on GLUT1/2/5 levels and function were examined in human BC models. GLUT1/2/5 and HIF1a mRNA was analyzed in BC patient biopsies. In MCF10A, MCF7, and MDA‐MB231 cells, [\n                    <jats:sup>18</jats:sup>\n                    F]FDG, 6‐deoxy‐6‐[\n                    <jats:sup>18</jats:sup>\n                    F]fluoro‐\n                    <jats:bold>D</jats:bold>\n                    ‐ fructose (6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF) and [\n                    <jats:sup>18</jats:sup>\n                    F]‐fluoroazomycin arabinoside were used in radiotracer experiments, whereas GLUT1/2/5 mRNA was analyzed with real‐time PCR and protein levels determined\n                    <jats:italic>via</jats:italic>\n                    Western blot/ immunohistochemistry. Positron emission tomography imaging was performed in MCF7 and MDA‐MB231 tumor‐bearing mice. Glucose/fructose/cytochalasin B reduced cellular 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF uptake by 50%, indicating functional involvement of GLUT2. With GLUT5 staining lower than GLUT1, 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF revealed lower uptake than [\n                    <jats:sup>18</jats:sup>\n                    F]FDG [standardized uptake value (SUV)\n                    <jats:sub>6</jats:sub>\n                    <jats:bold>_[</jats:bold>\n                    <jats:sup>18</jats:sup>\n                    <jats:bold>F]FDF, 120 min</jats:bold>\n                    0.77 ± 0.06 vs. SUV\n                    <jats:bold>[</jats:bold>\n                    <jats:sup>18</jats:sup>\n                    <jats:sc>\n                      F\n                      <jats:bold>]FDF</jats:bold>\n                    </jats:sc>\n                    ,\n                    <jats:bold>120 min</jats:bold>\n                    1.08 ± 0.07] in MDA‐MB231 tumors and was blocked by 20% with cytochalasin B after 10 min. Whereas correspondence between 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF uptake and GLUT5 protein was low, high GLUT2 levels were detected in all cell lines and tumor models. Besides GLUT1, GLUT5 seems to be regulated under hypoxia on the molecular and functional level. Additionally, results strongly support a functional involvement of GLUT2 in fructose metabolism, possibly by compensating for the weaker expression and function of GLUT5 in BC.—Hamann, I., Krys, D., Glubrecht, D., Bouvet, V., Marshall, A., Vos, L., Mackey, J. R., Wuest, M., Wuest, F. Expression and function of hexose transporters GLUT1, GLUT2, and GLUT5 in breast cancer—effects of hypoxia. FASEB J. 32, 5104–5118 (2018).\n                    <jats:ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"http://www.fasebj.org\">www.fasebj.org</jats:ext-link>\n                  </jats:p>","journal":"The FASEB Journal","year":2018,"id":647890,"datarank":2.5945108975882474,"base_score":4.382026634673881,"endowment":4.382026634673881,"self_citation_contribution":0.6573039952010823,"citation_network_contribution":1.9372069023871652,"self_endowment_contribution":0.6573039952010823,"citer_contribution":1.9372069023871652,"corpus_percentile":null,"corpus_rank":null,"citation_count":79,"citer_count":65,"citers_with_citation_signal":51,"citers_with_endowment":51,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1688154,"name":"Daniel Krys","orcid":null,"position":1,"is_corresponding":false},{"id":1688155,"name":"Darryl Glubrecht","orcid":null,"position":2,"is_corresponding":false},{"id":1688156,"name":"Vincent Bouvet","orcid":null,"position":3,"is_corresponding":false},{"id":1462462,"name":"Alison Marshall","orcid":null,"position":4,"is_corresponding":false},{"id":1688158,"name":"Larissa Vos","orcid":null,"position":5,"is_corresponding":false},{"id":600939,"name":"John R. Mackey","orcid":"0000-0002-3489-2161","position":6,"is_corresponding":false},{"id":98426,"name":"Melinda Wuest","orcid":"0000-0003-0735-2749","position":7,"is_corresponding":false},{"id":98427,"name":"Frank Wuest","orcid":"0000-0002-6705-6450","position":8,"is_corresponding":false},{"id":1688152,"name":"Ingrit Hamann","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Expression and function of hexose transporters GLUT1, GLUT2, and GLUT5 in breast cancer—effects of hypoxia","abstract":"<jats:title>ABSTRACT</jats:title>\n                  <jats:p>\n                    Elevated growth in breast cancer (BC) activates hypoxia‐inducible factor (HIF1a) and downstream, facilitative glucose transporter 1 (GLUT1), which can be visualized with 2‐deoxy‐2‐[\n                    <jats:sup>18</jats:sup>\n                    F]fluoro‐\n                    <jats:bold>D</jats:bold>\n                    ‐glucose ([\n                    <jats:sup>18</jats:sup>\n                    F]FDG). GLUT5 (fructose) and GLUT2 (glucose/fructose) might provide alternative targets for BC imaging as to why effects of hypoxia on GLUT1/2/5 levels and function were examined in human BC models. GLUT1/2/5 and HIF1a mRNA was analyzed in BC patient biopsies. In MCF10A, MCF7, and MDA‐MB231 cells, [\n                    <jats:sup>18</jats:sup>\n                    F]FDG, 6‐deoxy‐6‐[\n                    <jats:sup>18</jats:sup>\n                    F]fluoro‐\n                    <jats:bold>D</jats:bold>\n                    ‐ fructose (6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF) and [\n                    <jats:sup>18</jats:sup>\n                    F]‐fluoroazomycin arabinoside were used in radiotracer experiments, whereas GLUT1/2/5 mRNA was analyzed with real‐time PCR and protein levels determined\n                    <jats:italic>via</jats:italic>\n                    Western blot/ immunohistochemistry. Positron emission tomography imaging was performed in MCF7 and MDA‐MB231 tumor‐bearing mice. Glucose/fructose/cytochalasin B reduced cellular 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF uptake by 50%, indicating functional involvement of GLUT2. With GLUT5 staining lower than GLUT1, 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF revealed lower uptake than [\n                    <jats:sup>18</jats:sup>\n                    F]FDG [standardized uptake value (SUV)\n                    <jats:sub>6</jats:sub>\n                    <jats:bold>_[</jats:bold>\n                    <jats:sup>18</jats:sup>\n                    <jats:bold>F]FDF, 120 min</jats:bold>\n                    0.77 ± 0.06 vs. SUV\n                    <jats:bold>[</jats:bold>\n                    <jats:sup>18</jats:sup>\n                    <jats:sc>\n                      F\n                      <jats:bold>]FDF</jats:bold>\n                    </jats:sc>\n                    ,\n                    <jats:bold>120 min</jats:bold>\n                    1.08 ± 0.07] in MDA‐MB231 tumors and was blocked by 20% with cytochalasin B after 10 min. Whereas correspondence between 6‐[\n                    <jats:sup>18</jats:sup>\n                    F]FDF uptake and GLUT5 protein was low, high GLUT2 levels were detected in all cell lines and tumor models. Besides GLUT1, GLUT5 seems to be regulated under hypoxia on the molecular and functional level. Additionally, results strongly support a functional involvement of GLUT2 in fructose metabolism, possibly by compensating for the weaker expression and function of GLUT5 in BC.—Hamann, I., Krys, D., Glubrecht, D., Bouvet, V., Marshall, A., Vos, L., Mackey, J. R., Wuest, M., Wuest, F. Expression and function of hexose transporters GLUT1, GLUT2, and GLUT5 in breast cancer—effects of hypoxia. FASEB J. 32, 5104–5118 (2018).\n                    <jats:ext-link xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"http://www.fasebj.org\">www.fasebj.org</jats:ext-link>\n                  </jats:p>","is_dataset_classified":null,"base_score":4.382026634673881,"endowment":4.382026634673881,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"29913554","pmcid":null,"openalex_id":"https://openalex.org/W2801149833","authors":[],"funders":[],"total_grants":0,"fwci":2.5299,"citation_percentile":0.90506881,"influential_citations":0,"citation_trend":[{"year":2018,"count":1},{"year":2019,"count":6},{"year":2020,"count":18},{"year":2021,"count":12},{"year":2022,"count":16},{"year":2023,"count":12},{"year":2024,"count":4},{"year":2025,"count":6},{"year":2026,"count":4}],"oa_status":"closed","license":"http://onlinelibrary.wiley.com/termsAndConditions#vor","oa_locations":[{"url":"https://onlinelibrary.wiley.com/doi/pdf/10.1096/fj.201800360R","host_type":"publisher"},{"url":"https://onlinelibrary.wiley.com/doi/full-xml/10.1096/fj.201800360R","host_type":"publisher"},{"url":"https://faseb.onlinelibrary.wiley.com/doi/pdf/10.1096/fj.201800360R","host_type":"publisher"},{"url":"https://doi.org/10.1096/fj.201800360r","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/29913554","host_type":"repository"}],"fields_of_study":["Cancer, Hypoxia, and Metabolism","Metabolism, Diabetes, and Cancer","RNA modifications and cancer","Animals","Biological Transport","Breast","Breast Neoplasms","Cell Line, Tumor","Female","Fluorodeoxyglucose F18","Fructose","Glucose","Glucose Transporter Type 1","Glucose Transporter Type 2","Glucose Transporter Type 5","Humans","Hypoxia","Immunohistochemistry","MCF-7 Cells","Mice","Mice, Nude","Monosaccharide Transport Proteins","Positron-Emission Tomography"],"mesh_terms":["Animals","Hypoxia","Biological Transport","Breast","Breast Neoplasms","Female","Fructose","Glucose","Humans","Immunohistochemistry","Mice, Nude","Monosaccharide Transport Proteins","Fluorodeoxyglucose F18","Cell Line, Tumor","Positron-Emission Tomography","Glucose Transporter Type 1","Glucose Transporter Type 2","Glucose Transporter Type 5","Mice","MCF-7 Cells"],"keywords":["GLUT1","GLUT2","Glucose transporter","Glucose Transporter Type 1","HIF1A","Glucose uptake","Chemistry","GLUT3","Endocrinology","Hypoxia (environmental)","Internal medicine","Fructose","Biology","Biochemistry","Medicine","Angiogenesis","Insulin","Oxygen","Positron emission tomography","glucose metabolism","Fructose Metabolism"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Good health and well-being"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-10T02:00:00.642180Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}