2023
MKP1 promotes nonalcoholic steatohepatitis by suppressing AMPK activity through LKB1 nuclear retention
Qiu B, Lawan A, Xirouchaki C, Yi J, Robert M, Zhang L, Brown W, Fernández-Hernando C, Yang X, Tiganis T, Bennett A. MKP1 promotes nonalcoholic steatohepatitis by suppressing AMPK activity through LKB1 nuclear retention. Nature Communications 2023, 14: 5405. PMID: 37669951, PMCID: PMC10480499, DOI: 10.1038/s41467-023-41145-5.Peer-Reviewed Original Research
2022
Immune cells and their inflammatory mediators modify beta cells and cause checkpoint inhibitor-induced diabetes
Perdigoto AL, Deng S, Du KC, Kuchroo M, Burkhardt DB, Tong A, Israel G, Robert ME, Weisberg SP, Kirkiles-Smith N, Stamatouli AM, Kluger HM, Quandt Z, Young A, Yang ML, Mamula MJ, Pober JS, Anderson MS, Krishnaswamy S, Herold KC. Immune cells and their inflammatory mediators modify beta cells and cause checkpoint inhibitor-induced diabetes. JCI Insight 2022, 7: e156330. PMID: 35925682, PMCID: PMC9536276, DOI: 10.1172/jci.insight.156330.Peer-Reviewed Original ResearchConceptsCheckpoint inhibitorsΒ-cellsPD-1/PD-L1 pathwayT-lymphocyte antigen-4PD-1 blockadePD-L1 pathwayDeath ligand 1NOD mouse modelDevelopment of diabetesHuman β-cellsAutoimmune complicationsNOD miceΒ-cell populationDeath-1Diabetes mellitusImmune infiltratesInflammatory mediatorsPancreatic inflammationPD-L1Induced diabetesLymphocytic infiltrationInflammatory cytokinesAntigen-4Immune cellsT cells
2021
Trefoil factor 2 secreted from damaged hepatocytes activates hepatic stellate cells to induce fibrogenesis
Zhang B, Lapenta K, Wang Q, Nam JH, Chung D, Robert ME, Nathanson MH, Yang X. Trefoil factor 2 secreted from damaged hepatocytes activates hepatic stellate cells to induce fibrogenesis. Journal Of Biological Chemistry 2021, 297: 100887. PMID: 34146542, PMCID: PMC8267550, DOI: 10.1016/j.jbc.2021.100887.Peer-Reviewed Original ResearchConceptsHepatic stellate cellsTrefoil factor 2Liver injuryStellate cellsActivation of HSCsPrimary hepatic stellate cellsPlatelet-derived growth factor receptor betaChronic liver diseaseGrowth factor receptor betaProcess of fibrogenesisLiver-specific deletionFactor 2Spontaneous fibrosisLiver diseaseLiver fibrosisFibrogenic processReceptor betaFibrogenesisWT hepatocytesProtein expressionFibrosisHepatocytesInjuryNovel factorActivation
2020
Frontiers in Celiac Disease
Patel N, Robert ME. Frontiers in Celiac Disease. The American Journal Of Surgical Pathology 2020, 46: e43-e54. PMID: 33739793, DOI: 10.1097/pas.0000000000001639.Peer-Reviewed Original ResearchConceptsCeliac diseaseType II refractory celiac diseaseMonoclonal T-cell populationChildhood viral infectionsDuodenal mucosal histologyImportant autoimmune diseasesRefractory celiac diseaseCommon autoimmune disorderT cell populationsCeliac disease patientsCeliac disease pathogenesisEvaluation of responseCeliac disease manifestationsGluten toleranceDietary glutenGluten exposureMechanisms of diseaseAutoimmune conditionsHLA-DQ2Mucosal histologySymptomatic diseaseInflammatory cascadeInitial diagnosisPatient's symptomsAutoimmune disordersNeutrophils interact with cholangiocytes to cause cholestatic changes in alcoholic hepatitis
Takeuchi M, Vidigal PT, Guerra MT, Hundt MA, Robert ME, Olave-Martinez M, Aoki S, Khamphaya T, Kersten R, Kruglov E, de la Rosa Rodriguez R, Banales JM, Nathanson MH, Weerachayaphorn J. Neutrophils interact with cholangiocytes to cause cholestatic changes in alcoholic hepatitis. Gut 2020, 70: 342-356. PMID: 33214166, PMCID: PMC7906004, DOI: 10.1136/gutjnl-2020-322540.Peer-Reviewed Original ResearchConceptsBile ductCholestatic changesLimited treatment optionsPresence of cholestasisAbility of neutrophilsLife-threatening diseaseNew therapeutic targetsHuman bile ductIntracellular calcium channelsAlcoholic hepatitisLiver biopsyControl neutrophilsPathological findingsHepatocellular damageHistological findingsTreatment optionsCell adhesion moleculeHistological parametersDisease altersITPR3 expressionTherapeutic targetAnimal modelsCalcium channelsNeutrophilsPatientsOGT suppresses S6K1-mediated macrophage inflammation and metabolic disturbance
Yang Y, Li X, Luan HH, Zhang B, Zhang K, Nam JH, Li Z, Fu M, Munk A, Zhang D, Wang S, Liu Y, Albuquerque JP, Ong Q, Li R, Wang Q, Robert ME, Perry RJ, Chung D, Shulman GI, Yang X. OGT suppresses S6K1-mediated macrophage inflammation and metabolic disturbance. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 16616-16625. PMID: 32601203, PMCID: PMC7368321, DOI: 10.1073/pnas.1916121117.Peer-Reviewed Original ResearchConceptsRibosomal protein S6 kinase beta-1Macrophage proinflammatory activationGlcNAc signalingProinflammatory activationUnexpected roleWhole-body metabolismNutrient fluxesLipid accumulationImmune cell activationGlcNAcHomeostatic mechanismsMetabolic disturbancesBeta 1Cell activationDiet-induced metabolic dysfunctionDiet-induced obese miceActivationWhole-body insulin resistanceMacrophage inflammationGlcNAcylationOGTPeripheral tissuesPhosphorylationEnhanced inflammationInsulin resistancePolycystin 2 is increased in disease to protect against stress-induced cell death
Brill AL, Fischer TT, Walters JM, Marlier A, Sewanan LR, Wilson PC, Johnson EK, Moeckel G, Cantley LG, Campbell SG, Nerbonne JM, Chung HJ, Robert ME, Ehrlich BE. Polycystin 2 is increased in disease to protect against stress-induced cell death. Scientific Reports 2020, 10: 386. PMID: 31941974, PMCID: PMC6962458, DOI: 10.1038/s41598-019-57286-x.Peer-Reviewed Original ResearchConceptsPolycystin-2General cellular homeostasisCell deathStress-induced cell deathPathological cell deathAutosomal dominant polycystic kidney diseaseEndoplasmic reticulum membraneCellular homeostasisCellular stressPrimary ciliaUbiquitous expressionExpression changesCell stressReticulum membraneTransient receptor potential cation channelHuman diseasesMultiple tissuesEndogenous roleDominant polycystic kidney diseaseTissue typesCation channelsPolycystic kidney diseaseDifferent pathological statesMultiple diseasesKidney disease
2019
O-GlcNAc transferase suppresses necroptosis and liver fibrosis
Zhang B, Li MD, Yin R, Liu Y, Yang Y, Mitchell-Richards KA, Nam JH, Li R, Wang L, Iwakiri Y, Chung D, Robert ME, Ehrlich BE, Bennett AM, Yu J, Nathanson MH, Yang X. O-GlcNAc transferase suppresses necroptosis and liver fibrosis. JCI Insight 2019, 4: e127709. PMID: 31672932, PMCID: PMC6948774, DOI: 10.1172/jci.insight.127709.Peer-Reviewed Original ResearchConceptsReceptor-interacting protein kinase 3Liver fibrosisLiver diseaseHepatocyte necroptosisEthanol-induced liver injuryAlcoholic liver cirrhosisChronic liver diseaseMultiple liver diseasesWeeks of ageProtein expression levelsPortal inflammationLiver cirrhosisLiver injuryBallooning degenerationElevated protein expression levelsSpontaneous genetic modelFibrosisKey suppressorKey mediatorMiceProtein kinase 3CirrhosisExpression levelsGlcNAc levelsMixed lineage kinase
2001
Selective T-cell subset ablation demonstrates a role for T1 and T2 cells in ongoing acute graft-versus-host disease: a model system for the reversal of disease
Liu J, Anderson B, Robert M, McNiff J, Emerson S, Shlomchik W, Shlomchik M. Selective T-cell subset ablation demonstrates a role for T1 and T2 cells in ongoing acute graft-versus-host disease: a model system for the reversal of disease. Blood 2001, 98: 3367-3375. PMID: 11719376, DOI: 10.1182/blood.v98.12.3367.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell DeathCytokinesDisease Models, AnimalFlow CytometryGanciclovirGraft vs Host DiseaseGraft vs Leukemia EffectHematopoiesisHematopoietic Stem CellsInterleukin-2Interleukin-4Lymphocyte SubsetsMaleMiceMice, TransgenicPromoter Regions, GeneticSimplexvirusSpleenT-LymphocytesThymidine KinaseThymus GlandWeight GainConceptsDonor T cellsT cellsT2 cellsGVHD reactionsHost diseaseInterleukin-2Herpes simplex virus thymidine kinase gene transductionAllogeneic stem cell transplantationCytokine-producing T cellsPrevention of GVHDStem cell transplantationReversal of diseaseT cell deletionLater time pointsAcute graftCytokine polarizationOngoing GVHDClinical GVHDAntibody infusionPeak diseaseClinical effectsCell transplantationIL-4 promoterGVHDDeficient miceMorphology of Isolated Colonic Crypts
Robert M, Singh S, Ikuma M, Jain D, Ardito T, Binder H. Morphology of Isolated Colonic Crypts. Cells Tissues Organs 2001, 168: 246-251. PMID: 11275691, DOI: 10.1159/000047841.Peer-Reviewed Original Research
1999
Prevention of Graft Versus Host Disease by Inactivation of Host Antigen-Presenting Cells
Shlomchik W, Couzens M, Tang C, McNiff J, Robert M, Liu J, Shlomchik M, Emerson S. Prevention of Graft Versus Host Disease by Inactivation of Host Antigen-Presenting Cells. Science 1999, 285: 412-415. PMID: 10411505, DOI: 10.1126/science.285.5426.412.Peer-Reviewed Original ResearchConceptsAntigen-presenting cellsAllogeneic bone marrow transplantationBone marrow transplantationHost diseaseMarrow transplantationT cellsMurine allogeneic bone marrow transplantation modelAllogeneic bone marrow transplantation modelHost-derived antigen-presenting cellsGraft Versus Host DiseaseHost antigen-presenting cellsDonor antigen-presenting cellsVersus Host DiseaseDonor T cellsAllogeneic T cellsBone marrow transplantation modelAlloimmune attackHost antigensTransplantation modelImportant toxicityNeoplastic diseaseDiseaseGraftTransplantationHost tissues
1998
Effect of Heparin on Dextran Sulfate Sodium-Induced Colitis
Korzenik J, Hsu A, Robert M. Effect of Heparin on Dextran Sulfate Sodium-Induced Colitis. Digestive Diseases And Sciences 1998, 43: 1800-1805. PMID: 9724172, DOI: 10.1023/a:1018800207063.Peer-Reviewed Original ResearchConceptsBowel diseaseDextran Sulfate Sodium-Induced ColitisDextran sulfate-induced colitisSeverity of colitisSulfate-induced colitisInduction of colitisEffect of heparinMurine colitisSubcutaneous injectionWebster miceColitisHeparinized animalsHeparinAnticoagulant propertiesDiseaseMiceDextran sulfateOpposite effectSulfated polysaccharidesAnimalsDrinking waterSimilar pathwaysDosesSeverity
1995
PERFORIN AND GRANZYME B
McDiarmid S, Farmer D, Kuniyoshi J, Robert M, Khadavi A, Shaked A, Busuttil R. PERFORIN AND GRANZYME B. Transplantation 1995, 59: 762-766. PMID: 7886805, DOI: 10.1097/00007890-199503150-00021.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceBiomarkersBlotting, SouthernCytokinesGraft RejectionGranzymesIntestine, SmallMembrane GlycoproteinsMolecular Sequence DataPerforinPore Forming Cytotoxic ProteinsRatsRats, Inbred BNRats, Inbred LewRNA, MessengerSerine EndopeptidasesT-Lymphocytes, CytotoxicTransplantation, HomologousUp-RegulationConceptsGranzyme BLewis recipientsAllograft groupIsograft controlsPostoperative day 3Reverse transcriptase-polymerase chain reaction methodSemiquantitative reverse transcriptase-polymerase chain reactionTranscriptase-polymerase chain reaction methodReverse transcriptase-polymerase chain reactionTranscriptase-polymerase chain reactionHistologic rejectionPOD 14Transplant allograftsMild rejectionPOD 3POD 5Killer cellsPOD 10Polymerase chain reaction methodHistologic evidenceTransplant rejectionPolymerase chain reactionF1 donorsHistologic evaluationChain reaction method
1994
THE CORRELATION OF INTRAGRAFT CYTOKINE EXPRESSION WITH REJECTION IN RAT SMALL INTESTINE TRANSPLANTATION
McDIARMID S, FARMER D, KUNIYOSHI J, ROBERT M, KHADAVI A, SHAKED A, BUSUTTIL R. THE CORRELATION OF INTRAGRAFT CYTOKINE EXPRESSION WITH REJECTION IN RAT SMALL INTESTINE TRANSPLANTATION. Transplantation 1994, 58: 690-697. PMID: 7940688, DOI: 10.1097/00007890-199409270-00009.Peer-Reviewed Original ResearchConceptsSmall intestine transplantationInterleukin-6Reverse transcriptase-PCRTNF-alphaInterleukin-2IFN-gammaPOD 14POD 3POD 7Cytokine expressionTumor necrosis factor alphaIntragraft cytokine expressionSeverity of rejectionEvidence of rejectionIL-2 receptorNecrosis factor alphaSemiquantitative reverse transcriptase-PCRRat small intestineExpression of mRNAIntestine transplantationGraft lossLewis recipientsHistologic rejectionIntragraft expressionMild rejectionIntragraft Expression of Messenger RNA for Interleukin-6 and Tumor Necrosis Factor-α Is a Predictor of Rat Small Intestine Transplant Rejection
Farmer D, McDiarmid S, Kuniyoshi J, Robert M, Shaked A, Busuttil R. Intragraft Expression of Messenger RNA for Interleukin-6 and Tumor Necrosis Factor-α Is a Predictor of Rat Small Intestine Transplant Rejection. Journal Of Surgical Research 1994, 57: 138-142. PMID: 8041128, DOI: 10.1006/jsre.1994.1121.Peer-Reviewed Original ResearchConceptsSmall intestine transplantationInterleukin-6Intragraft expressionPOD 5MRNA expressionIL-6 mRNA expressionRTPCR analysisDetection of rejectionMessenger RNAPostoperative day 3Interleukin-2 receptorTumor necrosis factorUseful diagnostic adjunctTranscriptase-polymerase chain reactionBeta-scintillation countingIntestine transplantationIntestinal histopathologyPOD 8Transplant rejectionPolymerase chain reactionTumor necrosisIL-2RNecrosis factorAllograftsDiagnostic adjunctIntragraft cytokine and cytotoxic T lymphocyte (CTL) specific protein expression as predictors of rat small intestine transplant rejection.
McDiarmid S, Farmer D, Kuniyoshi J, Robert M, Khadavi A, Shaked A, Busuttil R. Intragraft cytokine and cytotoxic T lymphocyte (CTL) specific protein expression as predictors of rat small intestine transplant rejection. Transplantation Proceedings 1994, 26: 1520-1. PMID: 8030018.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiomarkersCytokinesGraft RejectionInterferon-gammaInterleukin-2Interleukin-6Intestine, SmallMembrane GlycoproteinsPerforinPolymerase Chain ReactionPore Forming Cytotoxic ProteinsRatsRats, Inbred BNRats, Inbred LewReceptors, Interleukin-2RNA, MessengerSerine EndopeptidasesT-Lymphocytes, CytotoxicTime FactorsTransplantation, HomologousTransplantation, IsogeneicTumor Necrosis Factor-alpha
1986
Nicotine and smoking do not decrease basal gastric mucosal blood flow in anesthetized rats
Robert M, Leung F, Guth P. Nicotine and smoking do not decrease basal gastric mucosal blood flow in anesthetized rats. Digestive Diseases And Sciences 1986, 31: 530-534. PMID: 3698770, DOI: 10.1007/bf01320320.Peer-Reviewed Original ResearchConceptsGastric mucosal blood flowMucosal blood flowBasal gastric mucosal blood flowEffects of nicotineIntravenous nicotineAnesthetized ratsCigarette smokingBlood flowReduced gastric mucosal blood flowHydrogen gas clearance techniqueDecreased mucosal blood flowInhaled cigarette smokeGastric blood flowClearance techniqueNicotineRatsSmokingCigaretteHypotensionBloodHemorrhage