2023
COVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore
Tan W, Tan J, Lim J, Tan R, Bin Lee A, Leong F, Lee S, Chai L, Tan T, Bin Abdul Malek M, Ong B, Lye D, Chiew C, Chng W, Lim S, Bharwani L, Tan I, Sundar R, Tan K. COVID-19 Severity and Waning Immunity After up to 4 mRNA Vaccine Doses in 73 608 Patients With Cancer and 621 475 Matched Controls in Singapore. JAMA Oncology 2023, 9: 1221-1229. PMID: 37440245, PMCID: PMC10346511, DOI: 10.1001/jamaoncol.2023.2271.Peer-Reviewed Original ResearchConceptsIncidence rate ratiosCancer survivorsVaccine doseSevere diseaseCohort studyTreated patientsProspective multicenter observational cohort studyCompeting-risk regression analysisMulticenter observational cohort studyMatched controlsVaccine efficacyVaccine effectivenessRisk of poor outcomesWaning of vaccine effectivenessSevere COVID-19 disease outcomesMRNA vaccine doseRisk of deathObservational cohort studyMRNA-based vaccinesSocioeconomic statusSARS-CoV-2 DeltaRate ratiosCOVID-19 hospitalizationIncidence rateOmicron wave
2020
Profiling of gastric cancer cell-surface markers to achieve tumour–normal discrimination
Toh J, Hoppe M, Thakur T, Yang H, Tan K, Pang B, Ho S, Roy R, Ho K, Yeoh K, Tan P, Sundar R, Jeyasekharan A. Profiling of gastric cancer cell-surface markers to achieve tumour–normal discrimination. BMJ Open Gastroenterology 2020, 7: e000452. PMID: 32816956, PMCID: PMC7437876, DOI: 10.1136/bmjgast-2020-000452.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAntigens, CDAntigens, Tumor-Associated, CarbohydrateCA-19-9 AntigenCarcinoembryonic AntigenCell Adhesion MoleculesClaudin-4ClaudinsEpithelial Cell Adhesion MoleculeEvaluation Studies as TopicExome SequencingGenomicsGPI-Linked ProteinsHumansImmunohistochemistryMembrane ProteinsROC CurveSensitivity and SpecificitySingaporeStomach NeoplasmsUp-RegulationConceptsWhole-transcriptome sequencingCell surface markersMultispectral immunohistochemistryPutative cell surface proteinGastric cancerNormal tissuesMatched normal samplesCA72-4Cell surface proteinsTumor tissuesLive imaging approachesAnalysis of cell surface markersMolecular profiling of cancersHighest diagnostic validityIdentification of tumor tissueTranscriptome sequencingCancer Genome AtlasProfile of cancerProtein transcriptsCancer cell surface markersCA19-9Genome AtlasDifferentiated tumorsTissue microarrayTCGA data