2024
Opportunities for Improving Biopsy and Non–Biopsy-Based Diagnosis of Celiac Disease
Robert M, Ciacci C, Lebwohl B. Opportunities for Improving Biopsy and Non–Biopsy-Based Diagnosis of Celiac Disease. Gastroenterology 2024, 167: 79-89. PMID: 38302007, DOI: 10.1053/j.gastro.2024.01.031.Peer-Reviewed Original Research
2023
Rare cases of colonic schwannomas
Gazivoda V, Wang D, Siddique M, Zeng J, Robert M, Pantel H, Mongiu A. Rare cases of colonic schwannomas. Journal Of Surgical Case Reports 2023, 2023: rjac438. PMID: 38163055, PMCID: PMC10757069, DOI: 10.1093/jscr/rjac438.Peer-Reviewed Original ResearchSpindle cell neoplasmTransverse colonMesenchymal tumorsCell neoplasmsProximal transverse colonSegmental transverse colectomyRare spindle cell tumorSpindle cell tumorsColonic schwannomaJumbo forcepsTransverse colectomyPrimary anastomosisSurveillance colonoscopyMucosal biopsiesSubmucosal lesionsColon massElderly malesSubmucosal resectionCell tumorsDeep biopsyElderly femalesSurgical decisionNinth caseRare caseCT scanMKP1 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
Mitochondrial fitness and cancer risk
Kossenkov AV, Milcarek A, Notta F, Jang GH, Wilson JM, Gallinger S, Zhou DC, Ding L, Ghosh JC, Perego M, Morotti A, Locatelli M, Robert ME, Vaira V, Altieri DC. Mitochondrial fitness and cancer risk. PLOS ONE 2022, 17: e0273520. PMID: 36223343, PMCID: PMC9555630, DOI: 10.1371/journal.pone.0273520.Peer-Reviewed Original ResearchConceptsPancreatic ductal adenocarcinomaSenescence-Associated Secretory PhenotypeIndependent patient cohortsPoor patient outcomesAggressive disease variantFolfirinox failureLocal inflammationPatient cohortDuctal adenocarcinomaPatient outcomesPatient riskMultiple malignanciesCancer riskMitochondrial fitnessSecretory phenotypeGene signatureHallmarks of cancerMetastatic propensityNormal tissuesHuman tumorsInterferon SignalingTumorsInner membrane mitochondrial proteinMalignancyMolecular signaturesOpen-Capsule Budesonide for the Treatment of Isolated Immune Checkpoint Inhibitor-Induced Enteritis
Hussain N, Robert M, Al-Bawardy B. Open-Capsule Budesonide for the Treatment of Isolated Immune Checkpoint Inhibitor-Induced Enteritis. ACG Case Reports Journal 2022, 9: e00882. PMID: 36237281, PMCID: PMC9553371, DOI: 10.14309/crj.0000000000000882.Peer-Reviewed Original ResearchImmune 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 cellsComprehensive molecular profiling of pancreatic ductal adenocarcinoma in FNA, biopsy, and resection specimens
Razzano D, Bouza SJ, Hernandez PV, Wang M, Robert ME, Walther Z, Cai G. Comprehensive molecular profiling of pancreatic ductal adenocarcinoma in FNA, biopsy, and resection specimens. Cancer Cytopathology 2022, 130: 726-734. PMID: 35511415, DOI: 10.1002/cncy.22589.Peer-Reviewed Original ResearchConceptsFine-needle aspirationFine-needle biopsyPancreatic ductal adenocarcinomaOncomine Comprehensive AssayResection specimensMolecular alterationsMolecular testingFNB samplesDuctal adenocarcinomaTherapeutic implicationsSuccess rateComprehensive molecular analysisComprehensive molecular testingComprehensive molecular profilingPotential therapeutic implicationsSimilar success ratesResection casesKRAS mutationsFNB specimensFNA materialFNA specimensAmplification analysisMolecular profilingFusion assessmentGene mutationsCytoskeletal dynamics regulates stromal invasion behavior of distinct liver cancer subtypes
Nguyen RY, Xiao H, Gong X, Arroyo A, Cabral AT, Fischer TT, Flores KM, Zhang X, Robert ME, Ehrlich BE, Mak M. Cytoskeletal dynamics regulates stromal invasion behavior of distinct liver cancer subtypes. Communications Biology 2022, 5: 202. PMID: 35241781, PMCID: PMC8894393, DOI: 10.1038/s42003-022-03121-5.Peer-Reviewed Original ResearchInternational consensus to standardise histopathological scoring for small bowel strictures in Crohn's disease.
Gordon IO, Bettenworth D, Bokemeyer A, Srivastava A, Rosty C, de Hertogh G, Robert ME, Valasek MA, Mao R, Li J, Harpaz N, Borralho P, Pai RK, Odze R, Feakins R, Parker CE, Guizzetti L, Nguyen T, Shackelton LM, Sandborn WJ, Jairath V, Baker M, Bruining D, Fletcher JG, Feagan BG, Pai RK, Rieder F. International consensus to standardise histopathological scoring for small bowel strictures in Crohn's disease. Gut 2022, 71: 479-486. PMID: 33952604, PMCID: PMC8903083, DOI: 10.1136/gutjnl-2021-324374.Peer-Reviewed Original ResearchGhost mitochondria drive metastasis through adaptive GCN2/Akt therapeutic vulnerability
Ghosh JC, Perego M, Agarwal E, Bertolini I, Wang Y, Goldman AR, Tang HY, Kossenkov AV, Landis CJ, Languino LR, Plow EF, Morotti A, Ottobrini L, Locatelli M, Speicher DW, Caino MC, Cassel J, Salvino JM, Robert ME, Vaira V, Altieri DC. Ghost mitochondria drive metastasis through adaptive GCN2/Akt therapeutic vulnerability. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2115624119. PMID: 35177476, PMCID: PMC8872753, DOI: 10.1073/pnas.2115624119.Peer-Reviewed Original ResearchMeSH KeywordsCell DeathCell Line, TumorCell MovementCell ProliferationEpithelial-Mesenchymal TransitionHumansMitochondriaMitochondrial DynamicsMitochondrial ProteinsMuscle ProteinsNeoplasm InvasivenessNeoplasm MetastasisNeoplasmsNeoplastic ProcessesProtein Serine-Threonine KinasesProto-Oncogene Proteins c-aktReactive Oxygen SpeciesSignal TransductionConceptsEpithelial-mesenchymal transitionGene expression programsTherapeutic vulnerabilitiesTumor cell movementCytokine/chemokine signalingExpression programsTherapeutic targetCell movementMitochondrial dynamicsEssential scaffoldMitochondrial structureSurvival signalingMitochondrial integrityCancer metabolismStress responseActionable therapeutic targetsCell deathChemokine signalingMitochondriaSmall-molecule drug screensCell proliferationOxidative damageInnate immunityMetastatic disseminationHuman tumors
2021
Extremely well-differentiated gastric adenocarcinoma arising in gastric adenomyoma
Lerner G, Billingsley K, Aslanian H, Robert M. Extremely well-differentiated gastric adenocarcinoma arising in gastric adenomyoma. Human Pathology Reports 2021, 26: 300573. DOI: 10.1016/j.hpr.2021.300573.Peer-Reviewed Original ResearchGastric adenomyomaMural lesionsPancreatic heterotopiaPyloric channelEndoscopic fine-needle aspiration cytologyFine needle aspiration cytologyGastric wall thickeningDifferential diagnostic considerationsSmooth muscle bundlesNeedle aspiration cytologyDistal gastrectomyEarly satietyObstructive symptomsMalignant degenerationCystic massImmunohistochemical findingsPyloric wallRare entityIncidental findingGastric adenocarcinomaDiagnostic considerationsAspiration cytologySmooth muscleBland epitheliumAdenomyomaRenalase is a novel tissue and serological biomarker in pancreatic ductal adenocarcinoma
Gao Y, Wang M, Guo X, Hu J, Chen TM, Finn S, Lacy J, Kunstman JW, H. C, Bellin MD, Robert ME, Desir GV, Gorelick FS. Renalase is a novel tissue and serological biomarker in pancreatic ductal adenocarcinoma. PLOS ONE 2021, 16: e0250539. PMID: 34587190, PMCID: PMC8480607, DOI: 10.1371/journal.pone.0250539.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBiomarkers, TumorCarcinoma, Pancreatic DuctalCase-Control StudiesFemaleGene Expression Regulation, NeoplasticHumansMaleMiddle AgedMonoamine OxidaseNeoplasm GradingPancreatic NeoplasmsPrognosisProspective StudiesRetrospective StudiesSurvival AnalysisUp-RegulationYoung AdultConceptsPlasma renalase levelsBorderline resectable PDACRenalase levelsPDAC precursor lesionsOverall survivalPDAC tissuesTumor characteristicsResectable PDACChronic pancreatitisPrecursor lesionsNormal pancreasPancreatic ductal adenocarcinoma growthAdvanced tumor characteristicsVaried clinical stagesWorse tumor characteristicsNode-positive diseasePancreatic ductal adenocarcinomaNormal pancreatic headSpindle-shaped cellsPlasma renalaseRenalase expressionUnderwent resectionAbdominal traumaPancreatic headPositive diseaseTrefoil 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 factorActivationSimultaneous colonic T-cell lymphoma and graft-versus-host disease: A rare diagnosis
Gisriel S, Hung K, Braddock D, Seropian S, Foss F, Robert M, Xu M. Simultaneous colonic T-cell lymphoma and graft-versus-host disease: A rare diagnosis. Human Pathology Reports 2021, 24: 200507. DOI: 10.1016/j.ehpc.2021.200507.Peer-Reviewed Case Reports and Technical NotesCutaneous T-cell lymphomaT-cell lymphomaPost-transplant lymphoproliferative disorderAllogeneic stem cell transplantAtypical lymphoid infiltrateStem cell transplantCritical clinical implicationsLimited tissue samplesAbdominal painHost diseaseGastrointestinal biopsiesLymph nodesCell transplantLymphoid infiltratesLymphoproliferative disordersMycosis fungoidesRare diagnosisDiagnostic workupDifferential diagnosisIntestinal mucosaClinical implicationsTissue samplesLymphomaGraftDiagnosisCheckpoint Inhibitor Colitis Shows Drug-Specific Differences in Immune Cell Reaction That Overlap With Inflammatory Bowel Disease and Predict Response to Colitis Therapy
Lo YC, Price C, Blenman K, Patil P, Zhang X, Robert ME. Checkpoint Inhibitor Colitis Shows Drug-Specific Differences in Immune Cell Reaction That Overlap With Inflammatory Bowel Disease and Predict Response to Colitis Therapy. American Journal Of Clinical Pathology 2021, 156: 214-228. PMID: 33555016, DOI: 10.1093/ajcp/aqaa217.Peer-Reviewed Original ResearchConceptsInflammatory bowel diseaseCD8/FOXP3 ratioBiopsy specimensCPI patientsPD-1CD68 scoreFOXP3 ratioBowel diseasePD-L1Antibody-treated patientsCheckpoint inhibitor colitisPD-L1 groupInitial biopsy specimensPD-L1 expressionImmune cell reactionsColonic biopsy specimensDrug-specific differencesIBD groupCheckpoint inhibitorsChronicity scoreActivity scoreImmune phenotypeTherapeutic responseColitisShared pathophysiology
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 channelsNeutrophilsPatientsElective Colectomy in a Patient with Active Ulcerative Colitis and Metastatic Melanoma Enabling Successful Treatment with Immune Checkpoint Inhibitors.
Perdigoto AL, Tran T, Patel N, Clark P, Patell K, Stamatouli AM, Reddy V, Clune J, Herold KC, Robert ME, Kluger HM. Elective Colectomy in a Patient with Active Ulcerative Colitis and Metastatic Melanoma Enabling Successful Treatment with Immune Checkpoint Inhibitors. Clinical Oncology Case Reports 2020, 3 PMID: 33778814, PMCID: PMC7993656.Peer-Reviewed Original ResearchCheckpoint inhibitor therapyElective colectomyUlcerative colitisInhibitor therapyMetastatic melanomaImmune-related adverse eventsExcellent tumor responseImmune checkpoint inhibitorsSevere ulcerative colitisActive ulcerative colitisCheckpoint inhibitor immunotherapyCheckpoint inhibitor treatmentInflammatory bowel diseaseEffective treatment optionBenefits of treatmentImmune system activationTumor cell destructionCheckpoint inhibitorsAdvanced malignanciesAdverse eventsSelect patientsBowel diseaseAutoimmune diseasesTreatment optionsTumor responseImmune Checkpoint Inhibitor–Induced Upper Gastrointestinal Tract Inflammation Shows Morphologic Similarities to, but Is Immunologically Distinct From, Helicobacter pylori Gastritis and Celiac Disease
Irshaid L, Robert ME, Zhang X. Immune Checkpoint Inhibitor–Induced Upper Gastrointestinal Tract Inflammation Shows Morphologic Similarities to, but Is Immunologically Distinct From, Helicobacter pylori Gastritis and Celiac Disease. Archives Of Pathology & Laboratory Medicine 2020, 145: 191-200. PMID: 33501492, DOI: 10.5858/arpa.2019-0700-oa.Peer-Reviewed Original ResearchConceptsHelicobacter pylori gastritisUpper gastrointestinal tractCeliac diseasePylori gastritisCPI therapyCD8 ratioDuodenal biopsiesInflammatory changesLymphoid aggregatesGastrointestinal tractAnti-programmed death receptor-1/Anti-cytotoxic T-lymphocyteDeath receptor-1/Immune checkpoint inhibitor therapyImmune-related adverse eventsDeath ligand 1 antibodyColonic mucosal changesGastrointestinal tract inflammationLamina propria CD3Lamina propria inflammationUpper gastrointestinal biopsiesUpper gastrointestinal injuryCheckpoint inhibitor therapyH pylori gastritisCD8 T cellsOGT 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 resistance