2017
Human rickettsial pathogen modulates arthropod organic anion transporting polypeptide and tryptophan pathway for its survival in ticks
Taank V, Dutta S, Dasgupta A, Steeves TK, Fish D, Anderson JF, Sultana H, Neelakanta G. Human rickettsial pathogen modulates arthropod organic anion transporting polypeptide and tryptophan pathway for its survival in ticks. Scientific Reports 2017, 7: 13256. PMID: 29038575, PMCID: PMC5643405, DOI: 10.1038/s41598-017-13559-x.Peer-Reviewed Original ResearchTicks elicit variable fibrinogenolytic activities upon feeding on hosts with different immune backgrounds
Vora A, Taank V, Dutta SM, Anderson JF, Fish D, Sonenshine DE, Catravas JD, Sultana H, Neelakanta G. Ticks elicit variable fibrinogenolytic activities upon feeding on hosts with different immune backgrounds. Scientific Reports 2017, 7: 44593. PMID: 28300174, PMCID: PMC5353578, DOI: 10.1038/srep44593.Peer-Reviewed Original ResearchConceptsDifferent immune backgroundsImmune backgroundImmunodeficient animalsImmunocompetent animalsAge-matched miceAntibody-blocking assaysIxodes scapularis ticksFibrinogenolytic activityD-dimerAnti-hemostatic factorsImmune defenseTick feedingScapularis ticksReduced levelsBlood feedingEngorgement weightLC-MS/MSFibrinogenolysisNovel roleAnimalsPCR analysisTicksFeeding
2010
Anaplasma phagocytophilum induces actin phosphorylation to selectively regulate gene transcription in Ixodes scapularis ticks
Sultana H, Neelakanta G, Kantor FS, Malawista SE, Fish D, Montgomery RR, Fikrig E. Anaplasma phagocytophilum induces actin phosphorylation to selectively regulate gene transcription in Ixodes scapularis ticks. Journal Of Experimental Medicine 2010, 207: 1727-1743. PMID: 20660616, PMCID: PMC2916137, DOI: 10.1084/jem.20100276.Peer-Reviewed Original ResearchMeSH KeywordsActinsAnaplasma phagocytophilumAnimalsCell LineCell NucleusEnzyme InhibitorsGastrointestinal TractGene ExpressionGene Expression RegulationGTP-Binding Protein beta SubunitsGTP-Binding Protein gamma SubunitsInsect ProteinsIxodesP21-Activated KinasesPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphorylationPromoter Regions, GeneticProtein BindingRNA InterferenceRNA Polymerase IISalivary GlandsSalivary Proteins and PeptidesSignal TransductionTATA-Box Binding ProteinTranscription, GeneticConceptsRNA polymerase IIActin phosphorylationTATA box-binding proteinNuclear G-actinPhosphorylation of actinP21-activated kinaseA. phagocytophilumA. phagocytophilum survivalTick cell linesIxodes scapularis ticksPolymerase IIPhosphorylated actinGene crucialGbetagamma subunitsGene transcriptionFilamentous actinAnaplasma phagocytophilumGene expressionBacterial acquisitionScapularis ticksPhosphorylationG-actinIntracellular pathogensMedical importanceActin
2006
An Ixodes scapularis protein required for survival of Anaplasma phagocytophilum in tick salivary glands
Sukumaran B, Narasimhan S, Anderson JF, DePonte K, Marcantonio N, Krishnan MN, Fish D, Telford SR, Kantor FS, Fikrig E. An Ixodes scapularis protein required for survival of Anaplasma phagocytophilum in tick salivary glands. Journal Of Experimental Medicine 2006, 203: 1507-1517. PMID: 16717118, PMCID: PMC2118316, DOI: 10.1084/jem.20060208.Peer-Reviewed Original ResearchConceptsA. phagocytophilum-infected miceRNA interference-mediated silencingA. phagocytophilumTick salivary proteinsI. scapularis salivary glandsRickettsia-like pathogensTick salivary glandsMammalian hostsGenus RickettsiaAnaplasma phagocytophilumGene expressionSalivary glandsIntracellular organismsArthropodsSalivary proteinsPathogensProteinPhagocytophilumExpressionTicksHuman anaplasmosisSilencingGenesOrganismsAnaplasma
2005
The Lyme disease agent exploits a tick protein to infect the mammalian host
Ramamoorthi N, Narasimhan S, Pal U, Bao F, Yang XF, Fish D, Anguita J, Norgard MV, Kantor FS, Anderson JF, Koski RA, Fikrig E. The Lyme disease agent exploits a tick protein to infect the mammalian host. Nature 2005, 436: 573-577. PMID: 16049492, PMCID: PMC4306560, DOI: 10.1038/nature03812.Peer-Reviewed Original Research