Genetic Fate Mapping Reveals That the Caudal Ganglionic Eminence Produces a Large and Diverse Population of Superficial Cortical Interneurons
Goichi Miyoshi,Jens Hjerling-Leffler,Theofanis Karayannis,Vitor H. Sousa,Simon J. B. Butt,Simon J. B. Butt,James Battiste,Jane E. Johnson,Robert Machold,Gord Fishell +9 more
TLDR
By combining an inducible genetic fate mapping strategy with electrophysiological analysis, this work systematically characterized the populations of cortical GABAergic interneurons that originate from the caudal ganglionic eminence (CGE), and determined the spatial and temporal origins of the vast majority of cortical interneuron subtypes.Abstract:
By combining an inducible genetic fate mapping strategy with electrophysiological analysis, we have systematically characterized the populations of cortical GABAergic interneurons that originate from the caudal ganglionic eminence (CGE). Interestingly, in comparison to medial ganglionic eminence (MGE)-derived cortical interneuron populations, the initiation (E12.5) and peak production (E16.5) of interneurons from this embryonic structure occurs three days later in development. Moreover, unlike either pyramidal cells or MGE-derived cortical interneurons, CGE-derived interneurons do not integrate into the cortex in an inside-out manner but preferentially (75%) occupy superficial cortical layers independent of birthdate. In contrast to previous estimates, CGE-derived interneurons are both considerably greater in number (around 30% of all cortical interneurons) and diversity (comprised by at least nine distinct subtypes). Furthermore, we have found that a large proportion of CGE-derived interneurons, including the neurogliaform subtype, express the glycoprotein Reelin. In fact, most CGE-derived cortical interneurons express either Reelin or vasoactive intestinal polypeptide (VIP). Thus, in conjunction with previous studies, we have now determined the spatial and temporal origins of the vast majority of cortical interneuron subtypes.read more
Citations
More filters
Journal ArticleDOI
A Resource of Cre Driver Lines for Genetic Targeting of GABAergic Neurons in Cerebral Cortex
Hiroki Taniguchi,Miao He,Priscilla Wu,Sangyong Kim,Raehum Paik,Ken Sugino,Duda Kvitsani,Yu Fu,Jiangteng Lu,Ying Lin,Goichi Miyoshi,Yasuyuki Shima,Gord Fishell,Sacha B. Nelson,Z. Josh Huang +14 more
TL;DR: Using genetic engineering in mice, approximately 20 Cre and inducible CreER knockin driver lines that reliably target major classes and lineages of GABAergic neurons are generated, thereby enabling a systematic and comprehensive analysis from cell fate specification, migration, and connectivity, to their functions in network dynamics and behavior.
Journal ArticleDOI
GABAergic Interneurons in the Neocortex: From Cellular Properties to Circuits
TL;DR: Current understanding of neocortical interneuron diversity and the properties that distinguish cell types are reviewed and it is illustrated how recent advances in the field have shed light onto the mechanisms by which GABAergic inhibition contributes to network operations.
Journal ArticleDOI
Three groups of interneurons account for nearly 100% of neocortical GABAergic neurons
TL;DR: The universal modulation of these neurons by serotonin and acetylcholine via ionotropic receptors suggests that they might be involved in shaping cortical circuits during specific brain states andbehavioral contexts.
Journal ArticleDOI
Conserved cell types with divergent features in human versus mouse cortex.
Rebecca D. Hodge,Trygve E. Bakken,Jeremy A. Miller,Kimberly A. Smith,Eliza Barkan,Lucas T. Graybuck,Jennie L. Close,Brian Long,Nelson Johansen,Osnat Penn,Zizhen Yao,Jeroen Eggermont,Thomas Höllt,Thomas Höllt,Boaz P. Levi,Soraya I. Shehata,Brian D. Aevermann,Allison Beller,Darren Bertagnolli,Krissy Brouner,Tamara Casper,Charles Cobbs,Rachel A. Dalley,Nick Dee,Songlin Ding,Richard G. Ellenbogen,Olivia Fong,Emma Garren,Jeff Goldy,Ryder P. Gwinn,Daniel Hirschstein,C. Dirk Keene,Mohamed Keshk,Andrew L. Ko,Andrew L. Ko,Kanan Lathia,Ahmed Mahfouz,Ahmed Mahfouz,Zoe Maltzer,Medea McGraw,Thuc Nghi Nguyen,Julie Nyhus,Jeffrey G. Ojemann,Jeffrey G. Ojemann,Aaron Oldre,Sheana Parry,Shannon Reynolds,Christine Rimorin,Nadiya V. Shapovalova,Saroja Somasundaram,Aaron Szafer,Elliot R. Thomsen,Michael Tieu,Gerald Quon,Richard H. Scheuermann,Richard H. Scheuermann,Rafael Yuste,Susan M. Sunkin,Boudewijn P. F. Lelieveldt,Boudewijn P. F. Lelieveldt,David Feng,Lydia Ng,Amy Bernard,Michael Hawrylycz,John W. Phillips,Bosiljka Tasic,Hongkui Zeng,Allan R. Jones,Christof Koch,Ed Lein +69 more
TL;DR: RNA-sequencing analysis of cells in the human cortex enabled identification of diverse cell types, revealing well-conserved architecture and homologous cell types as well as extensive differences when compared with datasets covering the analogous region of the mouse brain.
Journal ArticleDOI
Interneuron cell types are fit to function
Adam Kepecs,Gordon Fishell +1 more
TL;DR: This perspective emphasizes that the ultimate goal is to dispense with classification criteria and directly define interneuron types by function, and views them as elaborations of a much more finite group of developmentally specified cardinal classes that become further specialized as they mature.
References
More filters
Journal ArticleDOI
Efficient selection for high-expression transfectants with a novel eukaryotic vector
TL;DR: The results showed that high concentrations of G418 efficiently yielded L cell and CHO cell transfectants stably producing IL-2 at levels comparable with those previously attained using gene amplification.
Journal ArticleDOI
Cre reporter strains produced by targeted insertion of EYFP and ECFP into the ROSA26 locus
Shankar Srinivas,Tomoko Watanabe,Chyuan-Sheng Lin,Chris M William,Yasuto Tanabe,Thomas M. Jessell,Frank Costantini +6 more
TL;DR: In contrast to existing lacZ reporter lines, where lacZ expression cannot easily be detected in living tissue, the EYFP and ECFP reporter strains are useful for monitoring the expression of Cre and tracing the lineage of these cells and their descendants in cultured embryos or organs.
Journal ArticleDOI
Interneurons of the neocortical inhibitory system.
TL;DR: This review focuses on the organizing principles that govern the diversity of inhibitory interneurons and their circuits.
Journal ArticleDOI
Neuronal subtype specification in the cerebral cortex.
TL;DR: Recent data regarding the nature of neocortical progenitors is assessed, the roles of individual genes in projection neuron specification are reviewed and the implications for progenitor plasticity are discussed.