2024
Absence of the dolichol synthesis gene DHRSX leads to N-glycosylation defects in Lec5 and Lec9 Chinese hamster ovary cells
Kentache T, Althoff C, Caligiore F, Souche E, Schulz C, Graff J, Pieters E, Stanley P, Contessa J, Van Schaftingen E, Matthijs G, Foulquier F, Bommer G, Wilson M. Absence of the dolichol synthesis gene DHRSX leads to N-glycosylation defects in Lec5 and Lec9 Chinese hamster ovary cells. Journal Of Biological Chemistry 2024, 300: 107875. PMID: 39395802, DOI: 10.1016/j.jbc.2024.107875.Peer-Reviewed Original ResearchLec9 cellsChinese hamster ovaryDolichol synthesisGlycosylation-deficient Chinese hamster ovaryLong-read whole-genome sequencingCell linesN-glycosylation machineryN-glycan synthesisN-glycosylation defectChinese hamster ovary cellsGenomic regionsDHRSXLec9Hamster ovary cellsGlycosylation defectsHuman enzymeMolecular causesSynthesis defectsDolicholSRD5A3Hamster ovaryLevels of dolicholOvary cellsPolyprenolsKinetic properties
2018
Oligosaccharyltransferase Inhibition Overcomes Therapeutic Resistance to EGFR Tyrosine Kinase Inhibitors
Lopez Sambrooks C, Baro M, Quijano A, Narayan A, Cui W, Greninger P, Egan R, Patel A, Benes CH, Saltzman WM, Contessa JN. Oligosaccharyltransferase Inhibition Overcomes Therapeutic Resistance to EGFR Tyrosine Kinase Inhibitors. Cancer Research 2018, 78: canres.0505.2018. PMID: 30026325, PMCID: PMC6125176, DOI: 10.1158/0008-5472.can-18-0505.Peer-Reviewed Original ResearchConceptsMutant NSCLCMutant non-small cell lung cancerNon-small cell lung cancerSignificant tumor growth delayEGFR-TKI treatmentCell lung cancerTyrosine kinase inhibitor resistanceEGFR tyrosine kinase inhibitor resistanceLung cancer cell linesNGI-1Tumor growth delayEffective therapeutic targetCell linesKinase inhibitor resistanceTumor cell viabilityH1975 xenograftsCancer cell linesTKI treatmentComplex transmembrane proteinsEGFR-TKILung cancerTumor responseCell cycle arrestPreclinical modelsTherapeutic strategies
2016
Oligosaccharyltransferase inhibition induces senescence in RTK-driven tumor cells
Lopez-Sambrooks C, Shrimal S, Khodier C, Flaherty DP, Rinis N, Charest JC, Gao N, Zhao P, Wells L, Lewis TA, Lehrman MA, Gilmore R, Golden JE, Contessa JN. Oligosaccharyltransferase inhibition induces senescence in RTK-driven tumor cells. Nature Chemical Biology 2016, 12: 1023-1030. PMID: 27694802, PMCID: PMC5393272, DOI: 10.1038/nchembio.2194.Peer-Reviewed Original ResearchMeSH KeywordsBenzamidesCell Cycle CheckpointsCell Line, TumorCell ProliferationCellular SenescenceDose-Response Relationship, DrugEnzyme InhibitorsHexosyltransferasesHigh-Throughput Screening AssaysHumansMembrane ProteinsMolecular StructureReceptor Protein-Tyrosine KinasesStructure-Activity RelationshipSulfonamides