2023
Targeted and selective knockout of the TLQP-21 neuropeptide unmasks its unique role in energy homeostasis
Sahu B, Razzoli M, McGonigle S, Pallais J, Nguyen M, Sadahiro M, Jiang C, Lin W, Kelley K, Rodriguez P, Mansk R, Cero C, Caviola G, Palanza P, Rao L, Beetch M, Alejandro E, Sham Y, Frontini A, Salton S, Bartolomucci A. Targeted and selective knockout of the TLQP-21 neuropeptide unmasks its unique role in energy homeostasis. Molecular Metabolism 2023, 76: 101781. PMID: 37482186, PMCID: PMC10400922, DOI: 10.1016/j.molmet.2023.101781.Peer-Reviewed Original ResearchConceptsGenetic engineering approachesUnique metabolic phenotypeMass spectrometry identificationPrecursor geneGel digestionGenetic lossTLQP-21Cleavage siteC-terminal arginineGenesMutant sequencesSelective knockoutEssential roleBiological constraintsMetabolic phenotypeMouse linesEnergy homeostasisComposite phenotypeMutant miceValuable resourceVGF gene
2016
Embryonic ablation of neuronal VGF increases energy expenditure and reduces body weight
Jiang C, Lin WJ, Sadahiro M, Shin AC, Buettner C, Salton SR. Embryonic ablation of neuronal VGF increases energy expenditure and reduces body weight. Neuropeptides 2016, 64: 75-83. PMID: 28024880, PMCID: PMC5478485, DOI: 10.1016/j.npep.2016.12.005.Peer-Reviewed Original ResearchConceptsVGF knockout miceKnockout miceBody weightPeripheral endocrineEnergy expenditureAdult miceVGF-derived peptide TLQP-21Peptide TLQP-21Diet-induced obesityEmbryonic CNS neuronsICV deliverySynapsin-CreAAV-CreTLQP-21Arcuate nucleusCNS neuronsVentromedial hypothalamusReduced adiposityFemale miceMale miceEmbryonic ablationAdult neuronsExcitatory neuronsHypermetabolic phenotypeEmbryonic neurons