2021
Psilocybin induces rapid and persistent growth of dendritic spines in frontal cortex in vivo
Shao LX, Liao C, Gregg I, Davoudian PA, Savalia NK, Delagarza K, Kwan AC. Psilocybin induces rapid and persistent growth of dendritic spines in frontal cortex in vivo. Neuron 2021, 109: 2535-2544.e4. PMID: 34228959, PMCID: PMC8376772, DOI: 10.1016/j.neuron.2021.06.008.Peer-Reviewed Original ResearchConceptsFrontal cortexDendritic spinesMouse medial frontal cortexLayer 5 pyramidal neuronsSpine formation ratesApical dendritic spinesMedial frontal cortexUntapped therapeutic potentialPyramidal neuronsSingle doseExcitatory neurotransmissionBehavioral deficitsBeneficial actionsStructural remodelingSynaptic rewiringMammalian brainTherapeutic potentialNeural adaptationUse of psychedelicsSerotonergic psychedelicsSpine sizeTwo-photon microscopyCortexPsilocybinSpine
2020
p53 Activates the Long Noncoding RNA Pvt1b to Inhibit Myc and Suppress Tumorigenesis
Olivero CE, Martínez-Terroba E, Zimmer J, Liao C, Tesfaye E, Hooshdaran N, Schofield JA, Bendor J, Fang D, Simon MD, Zamudio JR, Dimitrova N. p53 Activates the Long Noncoding RNA Pvt1b to Inhibit Myc and Suppress Tumorigenesis. Molecular Cell 2020, 77: 761-774.e8. PMID: 31973890, PMCID: PMC7184554, DOI: 10.1016/j.molcel.2019.12.014.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarcinogenesisCell LineCell ProliferationCells, CulturedChromatinEnhancer Elements, GeneticGene Expression RegulationHumansLung NeoplasmsMiceMice, Inbred C57BLPromoter Regions, GeneticProto-Oncogene MasProto-Oncogene Proteins c-mycRNA, Long NoncodingStress, PhysiologicalTumor Suppressor Protein p53ConceptsMYC transcriptional networkLong noncoding RNA PVT1Cellular proliferationTumor suppressor p53Chromatin organizationTranscriptional networksTarget genesMYC transcriptionTranscriptional activityKb downstreamMYC levelsOncogenic signalingSuppressor p53Suppress tumorigenesisDNA damageRNA PVT1Autochthonous mouse modelMYCTranscriptionP53Anti-proliferative activityTumor progressionTumor growthLung cancerMouse model