Vivek Malhotra
Professor AdjunctAbout
Research
Publications
2024
Endoplasmic reticulum exit sites are segregated for secretion based on cargo size
Saxena S, Foresti O, Liu A, Androulaki S, Pena Rodriguez M, Raote I, Aridor M, Cui B, Malhotra V. Endoplasmic reticulum exit sites are segregated for secretion based on cargo size. Developmental Cell 2024 PMID: 38991587, DOI: 10.1016/j.devcel.2024.06.009.Peer-Reviewed Original ResearchEndoplasmic reticulum exit sitesProline-rich domainC-terminal proline-rich domainCOPII assemblyExit siteER membraneCargo exportJuxtanuclear regionU2OS cellsCargo moleculesBulky cargoSEC23AOptimal secretionCollagen VIIHuman osteosarcomaProlonged bindingComplex organismsCargoCargo sizeBindingCollagen ICTAGE5TANGO1COPIIERGIC53Tailored assemblies of COPII proteins in secretion
Malhotra V. Tailored assemblies of COPII proteins in secretion. Journal Of Cell Biology 2024, 223: e202404013. PMID: 38958655, PMCID: PMC11222725, DOI: 10.1083/jcb.202404013.Peer-Reviewed Original ResearchTANGO1 inhibitors reduce collagen secretion and limit tissue scarring
Raote I, Rosendahl A, Häkkinen H, Vibe C, Küçükaylak I, Sawant M, Keufgens L, Frommelt P, Halwas K, Broadbent K, Cunquero M, Castro G, Villemeur M, Nüchel J, Bornikoel A, Dam B, Zirmire R, Kiran R, Carolis C, Andilla J, Loza-Alvarez P, Ruprecht V, Jamora C, Campelo F, Krüger M, Hammerschmidt M, Eckes B, Neundorf I, Krieg T, Malhotra V. TANGO1 inhibitors reduce collagen secretion and limit tissue scarring. Nature Communications 2024, 15: 3302. PMID: 38658535, PMCID: PMC11043333, DOI: 10.1038/s41467-024-47004-1.Peer-Reviewed Original ResearchConceptsEndoplasmic reticulum exit sitesECM proteinsSecretion of ECM proteinsPeptide inhibitorFibrotic diseasesCollagen exportTANGO1Binding interfaceWound healingZebrafish resultsECM componentsReduced granulation tissue formationGranulation tissue formationEffective therapyCutaneous wound healingInhibitor treatmentFibrotic processUncontrolled secretionWidespread occurrenceProtein levelsExit siteExcessive scarringAmount of collagenTherapeutic modulationTissue scarringPublisher Correction: Pla2g12b drives expansion of triglyceride-rich lipoproteins
Thierer J, Foresti O, Yadav P, Wilson M, Moll T, Shen M, Busch-Nentwich E, Morash M, Mohlke K, Rawls J, Malhotra V, Hussain M, Farber S. Publisher Correction: Pla2g12b drives expansion of triglyceride-rich lipoproteins. Nature Communications 2024, 15: 2572. PMID: 38519494, PMCID: PMC10959976, DOI: 10.1038/s41467-024-46847-y.Peer-Reviewed Original ResearchSorting of secretory proteins at the trans-Golgi network by human TGN46
Lujan P, Garcia-Cabau C, Wakana Y, Lillo J, Rodilla-Ramírez C, Sugiura H, Malhotra V, Salvatella X, Garcia-Parajo M, Campelo F. Sorting of secretory proteins at the trans-Golgi network by human TGN46. ELife 2024, 12: rp91708. PMID: 38466628, PMCID: PMC10928510, DOI: 10.7554/elife.91708.Peer-Reviewed Original ResearchConceptsSecretory proteinsSorting of secretory proteinsCargo-sorting functionsTrans-Golgi networkNascent carriersCargo sortingLumenal domainMutagenesis approachTGN46Quantitative fluorescence microscopyCellular functionsMolecular playersTGNTransport carriersProteinFluorescence microscopyMembrane carrierSorting functionFundamental processesSortingCargoMutagenesisExportPAUFReceptorsSorting of secretory proteins at the trans-Golgi network by human TGN46
Lujan P, Garcia-Cabau C, Wakana Y, Vera Lillo J, Rodilla-Ramírez C, Sugiura H, Malhotra V, Salvatella X, Garcia-Parajo M, Campelo F. Sorting of secretory proteins at the trans-Golgi network by human TGN46. ELife 2024, 12 DOI: 10.7554/elife.91708.3.Peer-Reviewed Original ResearchTrans Golgi networkSecretory proteinsSorting of secretory proteinsCargo-sorting functionsTrans-Golgi networkNascent carriersCargo sortingGolgi networkLumenal domainMutagenesis approachTGN46Quantitative fluorescence microscopyCellular functionsMolecular playersTransport carriersProteinFluorescence microscopyMembrane carrierSorting functionFundamental processesSortingCargoMutagenesisExportPAUFPla2g12b drives expansion of triglyceride-rich lipoproteins
Thierer J, Foresti O, Yadav P, Wilson M, Moll T, Shen M, Busch-Nentwich E, Morash M, Mohlke K, Rawls J, Malhotra V, Hussain M, Farber S. Pla2g12b drives expansion of triglyceride-rich lipoproteins. Nature Communications 2024, 15: 2095. PMID: 38453914, PMCID: PMC10920679, DOI: 10.1038/s41467-024-46102-4.Peer-Reviewed Original ResearchConceptsEndoplasmic reticulumAccumulation of intracellular lipidsSubcellular localizationTriglyceride-rich lipoproteinsEvolutionary tradeoffsInteraction partnersNascent lipoproteinsFunctional domainsLipoprotein homeostasisPLA2G12BIntracellular lipidsResistant to atherosclerosisMutant miceVertebratesReticulumTriglyceride incorporationLipid secretionCardiovascular disease riskCalcium-dependentExcessive accumulationDisease riskTriglyceride transportLipoproteinTriglyceridesLipid
2023
A model for collagen secretion by intercompartmental continuities
Bunel L, Pincet L, Malhotra V, Raote I, Pincet F. A model for collagen secretion by intercompartmental continuities. Proceedings Of The National Academy Of Sciences Of The United States Of America 2023, 121: e2310404120. PMID: 38147551, PMCID: PMC10769856, DOI: 10.1073/pnas.2310404120.Peer-Reviewed Original Research