TY - JOUR
T1 - Nests of dividing neuroblasts sustain interneuron production for the developing human brain
AU - Paredes, Mercedes F.
AU - Mora, Cristina
AU - Flores-Ramirez, Quetzal
AU - Cebrian-Silla, Arantxa
AU - Del Dosso, Ashley
AU - Larimer, Phil
AU - Chen, Jiapei
AU - Kang, Gugene
AU - Granero, Susana Gonzalez
AU - Garcia, Eric
AU - Chu, Julia
AU - Delgado, Ryan
AU - Cotter, Jennifer A.
AU - Tang, Vivian
AU - Spatazza, Julien
AU - Obernier, Kirsten
AU - Lozano, Jaime Ferrer
AU - Vento, Maximo
AU - Scott, Julia
AU - Studholme, Colin
AU - Nowakowski, Tomasz J.
AU - Kriegstein, Arnold R.
AU - Oldham, Michael C.
AU - Hasenstaub, Andrea
AU - Garcia-Verdugo, Jose Manuel
AU - Alvarez-Buylla, Arturo
AU - Huang, Eric J.
N1 - Publisher Copyright:
© 2022 American Association for the Advancement of Science. All rights reserved.
PY - 2022/1/28
Y1 - 2022/1/28
N2 - The human cortex contains inhibitory interneurons derived from the medial ganglionic eminence (MGE), a germinal zone in the embryonic ventral forebrain. How this germinal zone generates sufficient interneurons for the human brain remains unclear. We found that the human MGE (hMGE) contains nests of proliferative neuroblasts with ultrastructural and transcriptomic features that distinguish them from other progenitors in the hMGE. When dissociated hMGE cells are transplanted into the neonatal mouse brain, they reform into nests containing proliferating neuroblasts that generate young neurons that migrate extensively into the mouse forebrain and mature into different subtypes of functional interneurons. Together, these results indicate that the nest organization and sustained proliferation of neuroblasts in the hMGE provide a mechanism for the extended production of interneurons for the human forebrain.
AB - The human cortex contains inhibitory interneurons derived from the medial ganglionic eminence (MGE), a germinal zone in the embryonic ventral forebrain. How this germinal zone generates sufficient interneurons for the human brain remains unclear. We found that the human MGE (hMGE) contains nests of proliferative neuroblasts with ultrastructural and transcriptomic features that distinguish them from other progenitors in the hMGE. When dissociated hMGE cells are transplanted into the neonatal mouse brain, they reform into nests containing proliferating neuroblasts that generate young neurons that migrate extensively into the mouse forebrain and mature into different subtypes of functional interneurons. Together, these results indicate that the nest organization and sustained proliferation of neuroblasts in the hMGE provide a mechanism for the extended production of interneurons for the human forebrain.
UR - https://www.scopus.com/pages/publications/85123616509
U2 - 10.1126/science.abk2346
DO - 10.1126/science.abk2346
M3 - Article
C2 - 35084970
AN - SCOPUS:85123616509
SN - 0036-8075
VL - 375
JO - Science
JF - Science
IS - 6579
M1 - eabk2346
ER -