The overall interest of our laboratory is in the functional properties of neurons in the mammalian prefrontal cortex (PFC), which play a central role in higher cognitive abilities such as abstract thinking, problem solving and cognitive flexibility. We seek to gain an understanding of the signaling properties of these neurons (in young and aged monkeys and APP and tau transgenic mice) by examining characteristics such as repetitive action potential firing patterns, synaptic response properties and underlying ionic currents, using whole-cell patch-clamp recordings of individual neurons identified under IR-DIC optics. By filling neurons from which recordings are obtained with dyes, we are able to subsequently reconstruct the neurons in 3-D and learn a great deal about important structure-function relationships. Most recently we are working with biomathematicians to perform computational modeling of PFC pyramidal cells using our empirically derived data.
- Graduate Faculty (Primary Mentor of Grad Students), Boston University School of Medicine, Division of Graduate Medical Sciences
- Boston University, PhD
- Randolph–Macon College, BS
- Published on 2/3/2018
Guillamon-Vivancos T, Tyler WA, Medalla M, Chang WW, Okamoto M, Haydar TF, Luebke JI. Distinct Neocortical Progenitor Lineages Fine-tune Neuronal Diversity in a Layer-specific Manner. Cereb Cortex. 2018 Feb 03. PMID: 29415216.
- Published on 11/20/2017
Apicco DJ, Ash PEA, Maziuk B, LeBlang C, Medalla M, Al Abdullatif A, Ferragud A, Botelho E, Ballance HI, Dhawan U, Boudeau S, Cruz AL, Kashy D, Wong A, Goldberg LR, Yazdani N, Zhang C, Ung CY, Tripodis Y, Kanaan NM, Ikezu T, Cottone P, Leszyk J, Li H, Luebke J, Bryant CD, Wolozin B. Reducing the RNA binding protein TIA1 protects against tau-mediated neurodegeneration in vivo. Nat Neurosci. 2018 Jan; 21(1):72-80. PMID: 29273772.
- Published on 4/5/2017
Medalla M, Gilman JP, Wang JY, Luebke JI. Strength and Diversity of Inhibitory Signaling Differentiates Primate Anterior Cingulate from Lateral Prefrontal Cortex. J Neurosci. 2017 May 03; 37(18):4717-4734. PMID: 28381592.
- Published on 3/26/2017
Hsu A, Luebke JI, Medalla M. Comparative ultrastructural features of excitatory synapses in the visual and frontal cortices of the adult mouse and monkey. J Comp Neurol. 2017 Jun 15; 525(9):2175-2191. PMID: 28256708.
- Published on 3/7/2017
Luebke JI. Pyramidal Neurons Are Not Generalizable Building Blocks of Cortical Networks. Front Neuroanat. 2017; 11:11. PMID: 28326020.
- Published on 3/1/2017
Gilman JP, Medalla M, Luebke JI. Area-Specific Features of Pyramidal Neurons-a Comparative Study in Mouse and Rhesus Monkey. Cereb Cortex. 2017 Mar 01; 27(3):2078-2094. PMID: 26965903.
- Published on 4/22/2016
Rumbell TH, Draguljic D, Yadav A, Hof PR, Luebke JI, Weaver CM. Automated evolutionary optimization of ion channel conductances and kinetics in models of young and aged rhesus monkey pyramidal neurons. J Comput Neurosci. 2016 08; 41(1):65-90. PMID: 27106692.
- Published on 10/5/2015
Asai H, Ikezu S, Tsunoda S, Medalla M, Luebke J, Haydar T, Wolozin B, Butovsky O, Kügler S, Ikezu T. Depletion of microglia and inhibition of exosome synthesis halt tau propagation. Nat Neurosci. 2015 Nov; 18(11):1584-93. PMID: 26436904.
- Published on 4/15/2015
Tyler WA, Medalla M, Guillamon-Vivancos T, Luebke JI, Haydar TF. Neural precursor lineages specify distinct neocortical pyramidal neuron types. J Neurosci. 2015 Apr 15; 35(15):6142-52. PMID: 25878286.
- Published on 1/7/2015
Medalla M, Luebke JI. Diversity of glutamatergic synaptic strength in lateral prefrontal versus primary visual cortices in the rhesus monkey. J Neurosci. 2015 Jan 7; 35(1):112-27. PMID: 25568107.
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