Featured Publications
Ubiquitination of ATF6 by disease-associated RNF186 promotes the innate receptor-induced unfolded protein response
Ranjan K, Hedl M, Sinha S, Zhang X, Abraham C. Ubiquitination of ATF6 by disease-associated RNF186 promotes the innate receptor-induced unfolded protein response. Journal Of Clinical Investigation 2021, 131: e145472. PMID: 34623328, PMCID: PMC8409591, DOI: 10.1172/jci145472.Peer-Reviewed Original ResearchMeSH KeywordsActivating Transcription Factor 6AnimalsEndoplasmic Reticulum StressGenetic VariationHost Microbial InteractionsHumansImmunity, InnateInflammatory Bowel DiseasesMacrophagesMiceMice, Inbred C57BLMice, KnockoutNod2 Signaling Adaptor ProteinReceptors, Pattern RecognitionRisk FactorsSignal TransductionUbiquitinationUbiquitin-Protein LigasesUnfolded Protein ResponseConceptsPattern recognition receptorsUnfolded protein responseInflammatory bowel diseaseER stress sensorsHuman macrophagesIntestinal immune homeostasisProtein responseInnate immune systemRisk variantsKey macrophage functionsBowel diseaseOral challengeTranscription factor 6Immune homeostasisCytokine secretionColonic tissueMacrophage functionStress sensorImmune systemRecognition receptorsEffective clearanceMicrobial responsesWeight lossMacrophagesUbiquitinationMyeloid Cell Expression of LACC1 Is Required for Bacterial Clearance and Control of Intestinal Inflammation
Kang JW, Yan J, Ranjan K, Zhang X, Turner JR, Abraham C. Myeloid Cell Expression of LACC1 Is Required for Bacterial Clearance and Control of Intestinal Inflammation. Gastroenterology 2020, 159: 1051-1067. PMID: 32693188, PMCID: PMC8139320, DOI: 10.1053/j.gastro.2020.07.024.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD4-Positive T-LymphocytesCells, CulturedCoculture TechniquesColitis, UlcerativeCytokinesDextran SulfateDisease Models, AnimalDNA-Binding ProteinsFemaleHost Microbial InteractionsHumansImmunity, MucosalIntestinal MucosaIntracellular Signaling Peptides and ProteinsMaleMiceMice, KnockoutMyeloid CellsPrimary Cell CultureSalmonella InfectionsSalmonella typhimuriumConceptsIntestinal lymphoid organsBurden of bacteriaDextran sodium sulfateWild-type miceLymphoid organsTh17 cytokinesIntestinal inflammationDendritic cellsMyeloid cellsT cellsTh2 cytokinesMesenteric lymph node dendritic cellsLymph node dendritic cellsMyeloid cell-derived cytokinesAdaptive T cell responsesT cell transfer colitisMyeloid-specific disruptionInflammatory bowel diseaseReactive oxygen speciesImmune-mediated diseasesT cell responsesT helper 1Cell-derived cytokinesT cell cytokinesBone marrow-derived macrophagesFADD regulates NF-κB activation and promotes ubiquitination of cFLIPL to induce apoptosis
Ranjan K, Pathak C. FADD regulates NF-κB activation and promotes ubiquitination of cFLIPL to induce apoptosis. Scientific Reports 2016, 6: 22787. PMID: 26972597, PMCID: PMC4789601, DOI: 10.1038/srep22787.Peer-Reviewed Original ResearchMeSH KeywordsA549 CellsAnimalsApoptosisBaculoviral IAP Repeat-Containing 3 ProteinBlotting, WesternCASP8 and FADD-Like Apoptosis Regulating ProteinCaspase 8Cell LineCell SurvivalFas-Associated Death Domain ProteinHCT116 CellsHEK293 CellsHeLa CellsHT29 CellsHumansInhibitor of Apoptosis ProteinsMCF-7 CellsMiceNF-kappa BNIH 3T3 CellsProtein BindingRepressor ProteinsRNA InterferenceTumor Necrosis Factor-alphaUbiquitinationUbiquitin-Protein LigasesConceptsCell deathProcaspase-8Molecular mechanismsCellular FLICE-like inhibitory proteinFLICE-like inhibitory proteinExpression of cFLIPLCell death signalingApoptosis protein 2Apoptotic cell death signalingHEK 293T cellsNovel molecular mechanismApoptotic cell deathNF-κB activationFasL stimulationCellular inhibitorE3 ubiquitinTNF-α stimulationDeath domainDeath inducingDeath signalingEctopic expressionFADDCaspase-8NF-κBCell survival
2020
Cell-Penetrable Peptide-Conjugated FADD Induces Apoptosis and Regulates Inflammatory Signaling in Cancer Cells
Ranjan K, Waghela BN, Vaidya FU, Pathak C. Cell-Penetrable Peptide-Conjugated FADD Induces Apoptosis and Regulates Inflammatory Signaling in Cancer Cells. International Journal Of Molecular Sciences 2020, 21: 6890. PMID: 32961826, PMCID: PMC7555701, DOI: 10.3390/ijms21186890.Peer-Reviewed Original ResearchConceptsFADD proteinCancer cellsAnti-apoptotic genesCaveolar pathwayDeath domainCellular pathwaysCancer cell proliferationCytosolic expressionFADD expressionCell deathApoptosis inducersInduces ApoptosisExpression of FasProteinCell proliferationApoptosisNF-κB activationSimultaneous regulationInflammatory signalingExpressionCellsNLRP3 inflammasome primingRegulationPathwayInflammasome priming
2017
Hydrophilic Acylated Surface Protein A (HASPA) of Leishmania donovani: Expression, Purification and Biophysico-Chemical Characterization
Kumar M, Ranjan K, Singh V, Pathak C, Pappachan A, Singh DD. Hydrophilic Acylated Surface Protein A (HASPA) of Leishmania donovani: Expression, Purification and Biophysico-Chemical Characterization. The Protein Journal 2017, 36: 343-351. PMID: 28634775, DOI: 10.1007/s10930-017-9726-x.Peer-Reviewed Original ResearchConceptsMouse macrophage RAW264.7 cell lineRAW264.7 cell lineSurface protein AMacrophage RAW264.7 cell lineReactive oxygen species productionSurface proteinsOxygen species productionLeishmania parasitesLeishmania donovaniLeishmania proteinsDrug developmentSpecies productionCell linesCo-immunoprecipitation studiesPresent studyInfective stagesFurther researchProtein AMacrophage protein
2016
Expression of FADD and cFLIPL balances mitochondrial integrity and redox signaling to substantiate apoptotic cell death
Ranjan K, Pathak C. Expression of FADD and cFLIPL balances mitochondrial integrity and redox signaling to substantiate apoptotic cell death. Molecular And Cellular Biochemistry 2016, 422: 135-150. PMID: 27619661, DOI: 10.1007/s11010-016-2813-z.Peer-Reviewed Original ResearchConceptsExpression of FADDMitochondrial integrityCell deathDeath receptorsMutant of FADDInduced expressionNon-apoptotic functionsDeath receptor signalingFate of cellsMitochondrial-associated apoptosisApoptotic cell deathCancer cellsCellular signalingEctopic expressionJNK1 activationFADDCellular respirationHA14-1Independent pathwaysReceptor signalingCFLIPCFLIPLBcl-2ApoptosisIntracellular ROS