2021
High‐resolution pH imaging using ratiometric chemical exchange saturation transfer combined with biosensor imaging of redundant deviation in shifts featuring paramagnetic DOTA‐tetraglycinate agents
Mihailovic JM, Huang Y, Walsh JJ, Khan MH, Mishra SK, Samuels S, Hyder F, Coman D. High‐resolution pH imaging using ratiometric chemical exchange saturation transfer combined with biosensor imaging of redundant deviation in shifts featuring paramagnetic DOTA‐tetraglycinate agents. NMR In Biomedicine 2021, 35: e4658. PMID: 34837412, DOI: 10.1002/nbm.4658.Peer-Reviewed Original Research
2020
A high‐throughput imaging platform to characterize extracellular pH in organotypic three‐dimensional in vitro models of liver cancer
Savic LJ, Schobert IT, Hamm CA, Adam LC, Hyder F, Coman D. A high‐throughput imaging platform to characterize extracellular pH in organotypic three‐dimensional in vitro models of liver cancer. NMR In Biomedicine 2020, 34: e4465. PMID: 33354836, DOI: 10.1002/nbm.4465.Peer-Reviewed Original ResearchConceptsLiver cancer modelLiver cancerHepatocellular carcinomaCancer modelNon-tumorous hepatocytesUnpaired t-testCell linesDose-dependent mannerHepatocyte cell lineTreatment responseTherapy resistanceMagnetic resonance spectroscopicT MR scannerPersonalized treatmentTumor metabolismCancerTumor pHMR resultsT-testCarcinomaViability assaysExtracellular pHMR scannerANOVA testTreatmentMolecular Imaging of Extracellular Tumor pH to Reveal Effects of Locoregional Therapy on Liver Cancer Microenvironment
Savic LJ, Schobert I, Peters D, Walsh JJ, Laage-Gaupp F, Hamm CA, Tritz N, Doemel LA, Lin M, Sinusas A, Schlachter T, Duncan JS, Hyder F, Coman D, Chapiro J. Molecular Imaging of Extracellular Tumor pH to Reveal Effects of Locoregional Therapy on Liver Cancer Microenvironment. Clinical Cancer Research 2020, 26: 428-438. PMID: 31582517, PMCID: PMC7244230, DOI: 10.1158/1078-0432.ccr-19-1702.Peer-Reviewed Original ResearchConceptsMR spectroscopic imagingLocoregional therapyLiver cancer microenvironmentConventional transarterial chemoembolizationNew Zealand white rabbitsTumor pHMost liver tumorsZealand white rabbitsMolecular imaging paradigmsPositive therapeutic outcomesTumor residualsTransarterial chemoembolizationTumor devascularizationHistopathologic markersViable tumorSurrogate biomarkerLiver tumorsLiver cancerTumor enhancementLiver parenchymaMetabolic markersMultiparametric MRITherapeutic outcomesHIF-1αVX2 tumors
2019
Extracellular pH mapping of liver cancer on a clinical 3T MRI scanner
Coman D, Peters DC, Walsh JJ, Savic LJ, Huber S, Sinusas AJ, Lin M, Chapiro J, Constable RT, Rothman DL, Duncan JS, Hyder F. Extracellular pH mapping of liver cancer on a clinical 3T MRI scanner. Magnetic Resonance In Medicine 2019, 83: 1553-1564. PMID: 31691371, PMCID: PMC7244229, DOI: 10.1002/mrm.28035.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiosensing TechniquesExtracellular SpaceHydrogen-Ion ConcentrationLiver NeoplasmsMagnetic Resonance ImagingRabbits
2017
Mapping Extracellular pH of Gliomas in Presence of Superparamagnetic Nanoparticles: Towards Imaging the Distribution of Drug‐Containing Nanoparticles and Their Curative Effect on the Tumor Microenvironment
Maritim S, Coman D, Huang Y, Rao JU, Walsh JJ, Hyder F. Mapping Extracellular pH of Gliomas in Presence of Superparamagnetic Nanoparticles: Towards Imaging the Distribution of Drug‐Containing Nanoparticles and Their Curative Effect on the Tumor Microenvironment. Contrast Media & Molecular Imaging 2017, 2017: 3849373. PMID: 29362558, PMCID: PMC5736903, DOI: 10.1155/2017/3849373.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrain NeoplasmsContrast MediaDrug CarriersGliomaHydrogen-Ion ConcentrationMagnetic Resonance ImagingMagnetite NanoparticlesMaleRatsRats, Inbred F344Tumor MicroenvironmentConceptsBrain microvasculatureCurative effectTherapeutic effectIntravenous injectionTherapeutic impactTumor typesD-NPsTumor microenvironmentSuperparamagnetic iron oxideTumor hallmarksGliomasDrug distributionInfusionMRI contrastHealing efficacyMRI readoutsMicrovasculatureDrugsExtracellular pHDrug-containing nanoparticlesTumor-targeted nanoparticlesSPIO NPsTumor boundariesTemozolomide arrests glioma growth and normalizes intratumoral extracellular pH
Rao JU, Coman D, Walsh JJ, Ali MM, Huang Y, Hyder F. Temozolomide arrests glioma growth and normalizes intratumoral extracellular pH. Scientific Reports 2017, 7: 7865. PMID: 28801587, PMCID: PMC5554228, DOI: 10.1038/s41598-017-07609-7.Peer-Reviewed Original ResearchConceptsU251 tumorsTumor microenvironmentT2-weighted MRITherapeutic responseUntreated ratsTumor volumeRat brainTumor growthTherapeutic influenceGlioma growthPeritumoral regionRatsApoptosis inductionTumorsGliomasTumor corePhysiological readoutsExtracellular pHAcidic pHeTumor boundariesProliferationMicroenvironment
2016
Towards longitudinal mapping of extracellular pH in gliomas
Huang Y, Coman D, Herman P, Rao JU, Maritim S, Hyder F. Towards longitudinal mapping of extracellular pH in gliomas. NMR In Biomedicine 2016, 29: 1364-1372. PMID: 27472471, PMCID: PMC5035200, DOI: 10.1002/nbm.3578.Peer-Reviewed Original ResearchConceptsSurgical interventionPlasma concentrationsU87 brain tumorsPreclinical modelsRenal clearanceSame subjectsTumor assessmentBrain tumorsProbe doseTherapeutic monitoringTranslational valueTumor characterizationLongitudinal scansChemical shift imaging techniqueThulium ionsMolecular imagingParamagnetic probesInterventionScansImaging techniquesSubjectsNon-exchangeable protonsImaging the intratumoral–peritumoral extracellular pH gradient of gliomas
Coman D, Huang Y, Rao JU, De Feyter HM, Rothman DL, Juchem C, Hyder F. Imaging the intratumoral–peritumoral extracellular pH gradient of gliomas. NMR In Biomedicine 2016, 29: 309-319. PMID: 26752688, PMCID: PMC4769673, DOI: 10.1002/nbm.3466.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiosensing TechniquesBrain NeoplasmsCell Line, TumorExtracellular SpaceGliomaHydrogen-Ion ConcentrationImmunohistochemistryMagnetic Resonance ImagingMaleRats, Inbred F344ConceptsRG2 tumorsTumor typesKi-67-positive cellsCancer therapeutic responseAcidic pHeTherapeutic responseRat brainPositive cellsSolid tumorsTumor cell invasionTumor borderTumorsPeritumoral regionNormal tissuesCell invasionTumor pHeP-MRSCancer imagingNeutral intracellularImagingPreclinical applicationsInfusionTherapy
2014
Lanthanide ion (III) complexes of 1,4,7,10‐tetraazacyclododecane‐1,4,7,10‐tetraaminophosphonate for dual biosensing of pH with chemical exchange saturation transfer (CEST) and biosensor imaging of redundant deviation in shifts (BIRDS)
Huang Y, Coman D, Ali MM, Hyder F. Lanthanide ion (III) complexes of 1,4,7,10‐tetraazacyclododecane‐1,4,7,10‐tetraaminophosphonate for dual biosensing of pH with chemical exchange saturation transfer (CEST) and biosensor imaging of redundant deviation in shifts (BIRDS). Contrast Media & Molecular Imaging 2014, 10: 51-58. PMID: 24801742, PMCID: PMC4222994, DOI: 10.1002/cmmi.1604.Peer-Reviewed Original ResearchMeSH KeywordsBiosensing TechniquesContrast MediaCyclamsDiagnostic ImagingGadoliniumHeterocyclic CompoundsHumansHydrogen-Ion ConcentrationLanthanoid Series ElementsThuliumYtterbiumConceptsChemical exchange saturation transferLanthanide complexesExchangeable protonsProton resonancesPH imagingLanthanide ion complexesRedundant deviationChemical shift differencesChemical exchange saturation transfer contrastCEST contrastIon complexesChemical shiftsQuantitative pH imagingShift differencesSingle-proton resonancesChemical shift imaging methodsMagnetic resonanceCEST experimentsWater protonsNonexchangeable protonsParamagnetic effectSaturation transferBiosensorComplexesWater resonance
2010
Brain temperature by Biosensor Imaging of Redundant Deviation in Shifts (BIRDS): comparison between TmDOTP5−and TmDOTMA−
Coman D, Trubel HK, Hyder F. Brain temperature by Biosensor Imaging of Redundant Deviation in Shifts (BIRDS): comparison between TmDOTP5−and TmDOTMA−. NMR In Biomedicine 2010, 23: 277-285. PMID: 19957287, PMCID: PMC2843767, DOI: 10.1002/nbm.1461.Peer-Reviewed Original Research
2009
Brain temperature and pH measured by 1H chemical shift imaging of a thulium agent
Coman D, Trubel HK, Rycyna RE, Hyder F. Brain temperature and pH measured by 1H chemical shift imaging of a thulium agent. NMR In Biomedicine 2009, 22: 229-239. PMID: 19130468, PMCID: PMC2735415, DOI: 10.1002/nbm.1312.Peer-Reviewed Original Research