Cortical regulation of neurogenesis and cell proliferation in the ventral subventricular zone.

Cortical regulation of neurogenesis and cell proliferation in the ventral subventricular zone.
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DOI:
10.1016/j.celrep.2023.112783
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发表时间:
2023-07-25
期刊:
影响因子:
8.8
通讯作者:
--
中科院分区:
生物学1区
文献类型:
--
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神经干细胞(NSCs)的神经发生和分化是由细胞内的分子通路控制的,这些分子通路与外部信号信号相互作用。在这项研究中,我们确定了侧脑室-脑室下区(LV-SVZ)中调节神经发生和细胞增殖的回路。我们的结果表明,来自前扣带回(ACC)的直接谷氨酸能投射以及来自Calretinin+局部中间神经元的抑制性投射,调制了室管膜下区(Subep-ChAT+)胆碱能神经元的活动。此外,在体内,光遗传刺激和抑制ACC-subep-ChAT+回路足以控制腹侧SVZ的神经发生。亚ChAT+和局部Calretinin+神经元在调节腹侧SVZ神经发生和LV-SVZ细胞增殖中起重要作用。NaFFAA等人。确定调节出生后SVZ神经发生的额叶皮质回路。该环路包括Calretinin+GABA能中间神经元和前扣带回谷氨酸能神经元,它们提供对腹侧SVZ内ChAT+神经元活动的双向控制,并调节NSC的增殖和神经发生。
Neurogenesis and differentiation of neural stem cells (NSCs) are controlled by cell-intrinsic molecular pathways that interact with extrinsic signaling cues. In this study, we identify a circuit that regulates neurogenesis and cell proliferation in the lateral ventricle-subventricular zone (LV-SVZ). Our results demonstrate that direct glutamatergic projections from the anterior cingulate cortex (ACC), as well as inhibitory projections from calretinin+ local interneurons, modulate the activity of cholinergic neurons in the subependymal zone (subep-ChAT+). Furthermore, in vivo optogenetic stimulation and inhibition of the ACC-subep-ChAT+ circuit are sufficient to control neurogenesis in the ventral SVZ. Both subep-ChAT+ and local calretinin+ neurons play critical roles in regulating ventral SVZ neurogenesis and LV-SVZ cell proliferation. Naffaa et al. identify a frontal cortical circuit regulating postnatal SVZ neurogenesis. The circuit includes calretinin+ GABAergic interneurons and anterior cingulate glutamatergic neurons, which provide bidirectional control of the activity of subep-ChAT+ neurons and modulate NSC proliferation and neurogenesis in the ventral SVZ.
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