PMID- 33762003 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240503 IS - 2049-3002 (Print) IS - 2049-3002 (Electronic) IS - 2049-3002 (Linking) VI - 9 IP - 1 DP - 2021 Mar 24 TI - GLUT5 (SLC2A5) enables fructose-mediated proliferation independent of ketohexokinase. PG - 12 LID - 10.1186/s40170-021-00246-9 [doi] LID - 12 AB - BACKGROUND: Fructose is an abundant source of carbon and energy for cells to use for metabolism, but only certain cell types use fructose to proliferate. Tumor cells that acquire the ability to metabolize fructose have a fitness advantage over their neighboring cells, but the proteins that mediate fructose metabolism in this context are unknown. Here, we investigated the determinants of fructose-mediated cell proliferation. METHODS: Live cell imaging and crystal violet assays were used to characterize the ability of several cell lines (RKO, H508, HepG2, Huh7, HEK293T (293T), A172, U118-MG, U87, MCF-7, MDA-MB-468, PC3, DLD1 HCT116, and 22RV1) to proliferate in fructose (i.e., the fructolytic ability). Fructose metabolism gene expression was determined by RT-qPCR and western blot for each cell line. A positive selection approach was used to "train" non-fructolytic PC3 cells to utilize fructose for proliferation. RNA-seq was performed on parental and trained PC3 cells to find key transcripts associated with fructolytic ability. A CRISPR-cas9 plasmid containing KHK-specific sgRNA was transfected in 293T cells to generate KHK(-/-) cells. Lentiviral transduction was used to overexpress empty vector, KHK, or GLUT5 in cells. Metabolic profiling was done with seahorse metabolic flux analysis as well as LC/MS metabolomics. Cell Titer Glo was used to determine cell sensitivity to 2-deoxyglucose in media containing either fructose or glucose. RESULTS: We found that neither the tissue of origin nor expression level of any single gene related to fructose catabolism determine the fructolytic ability. However, cells cultured chronically in fructose can develop fructolytic ability. SLC2A5, encoding the fructose transporter, GLUT5, was specifically upregulated in these cells. Overexpression of GLUT5 in non-fructolytic cells enabled growth in fructose-containing media across cells of different origins. GLUT5 permitted fructose to flux through glycolysis using hexokinase (HK) and not ketohexokinase (KHK). CONCLUSIONS: We show that GLUT5 is a robust and generalizable driver of fructose-dependent cell proliferation. This indicates that fructose uptake is the limiting factor for fructose-mediated cell proliferation. We further demonstrate that cellular proliferation with fructose is independent of KHK. FAU - Liang, Roger J AU - Liang RJ AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Taylor, Samuel AU - Taylor S AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Weill Cornell/Rockefeller/Sloan Kettering Tri-I MD-PhD program, New York, NY, 10065, USA. FAU - Nahiyaan, Navid AU - Nahiyaan N AD - Division of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Song, Junho AU - Song J AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Murphy, Charles J AU - Murphy CJ AD - Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA. AD - Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA. FAU - Dantas, Ezequiel AU - Dantas E AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Cheng, Shuyuan AU - Cheng S AD - Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Hsu, Ting-Wei AU - Hsu TW AD - Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Ramsamooj, Shakti AU - Ramsamooj S AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Grover, Rahul AU - Grover R AD - Weill Cornell Medical College, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Hwang, Seo-Kyoung AU - Hwang SK AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Ngo, Bryan AU - Ngo B AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. AD - Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Cantley, Lewis C AU - Cantley LC AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Rhee, Kyu Y AU - Rhee KY AD - Division of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. FAU - Goncalves, Marcus D AU - Goncalves MD AUID- ORCID: 0000-0002-0784-9248 AD - Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. mdg9010@med.cornell.edu. AD - Meyer Cancer Center, Department of Medicine, Weill Cornell Medicine, New York, NY, 10065, USA. mdg9010@med.cornell.edu. LA - eng GR - K08 CA230318/NH/NIH HHS/United States GR - R35 CA197588/CA/NCI NIH HHS/United States GR - R25 AI140472/AI/NIAID NIH HHS/United States GR - P50 CA211024/CA/NCI NIH HHS/United States GR - R35 CA197588/NH/NIH HHS/United States GR - F99CA234950/CA/NCI NIH HHS/United States GR - P50 CA211024/NH/NIH HHS/United States GR - F99 CA234950/CA/NCI NIH HHS/United States GR - P30 CA008748/CA/NCI NIH HHS/United States PT - Journal Article DEP - 20210324 PL - England TA - Cancer Metab JT - Cancer & metabolism JID - 101607582 PMC - PMC7992954 OTO - NOTNLM OT - Fructose OT - GLUT5 (SLC2A5) OT - Hexokinase OT - Ketohexokinase OT - Metabolism COIS- L.C.C. is a founder and member of the board of directors of Agios Pharmaceuticals and is a founder and receives research support from Petra Pharmaceuticals. M.D.G. reports personal fees from Novartis, Petra Pharmaceuticals, and Bayer. He receives research support from Pfizer. L.C.C. and M.D.G. are inventors on patents (pending) for Combination Therapy for PI3K-associated Disease or Disorder, The Identification of Therapeutic Interventions to Improve Response to PI3K Inhibitors for Cancer Treatment, and Anti-Fructose Therapy for Colorectal and Small Intestine Cancers. L.C.C. and M.D.G. are co-founders and shareholders in Faeth Therapeutics. All other authors report no competing interests. EDAT- 2021/03/26 06:00 MHDA- 2021/03/26 06:01 PMCR- 2021/03/24 CRDT- 2021/03/25 05:40 PHST- 2020/07/13 00:00 [received] PHST- 2021/02/08 00:00 [accepted] PHST- 2021/03/25 05:40 [entrez] PHST- 2021/03/26 06:00 [pubmed] PHST- 2021/03/26 06:01 [medline] PHST- 2021/03/24 00:00 [pmc-release] AID - 10.1186/s40170-021-00246-9 [pii] AID - 246 [pii] AID - 10.1186/s40170-021-00246-9 [doi] PST - epublish SO - Cancer Metab. 2021 Mar 24;9(1):12. doi: 10.1186/s40170-021-00246-9.