Single-nucleus data for Uncovering the Molecular Logic of Cortical Wiring between Neuronal subtypes Across Development Through Ligand–Receptor Inference

ABSTRACT: The cerebral cortex comprises diverse excitatory and inhibitory neuron subtypes, each with distinct laminar positions and connectivity patterns. Yet, the molecular logic underlying their precise wiring remains poorly understood. To identify ligand–receptor (LR) interactions involved in cortical circuit assembly, we tracked gene expression dynamics across major neuronal populations at 17 developmental stages using single-cell transcriptomics. This generated a comprehensive atlas of LR-mediated communication between excitatory and inhibitory neuron subtypes, capturing known and novel interactions. Notably, we identify neogenin-1 as the principal receptor for Cbln4 during the perinatal period, mediating synapse formation between somatostatin-expressing interneurons and glutamatergic neurons.

INSTRUMENT(S): Chromium Next GEM Chip G, Illumina HiSeq 4000, Single-Cell Extraction: For enzymatic digestion, pronase (Septomyces argeus, 1 mg/mL) was applied for 25 minutes at room temperature for P0 to P8 datasets. Cells were dissociated and triturated into a single-cell suspension in ACSF supplemented with 1% fetal calf serum (FCS) and DNase (1 µL/10 mL). Trituration was performed using three glass Pasteur pipettes of decreasing diameters. For P30 datasets, enzymatic digestion and cell dissociation were carried out using the Worthington Papain Dissociation System, following the manufacturer’s instructions. Single-Nuclei Extraction: For nuclei isolation, the Hibernate™-E Medium was removed, and 500 µL of chilled 0.1X NP40 Lysis Buffer was added. Tissue was homogenized using a Pellet Pestle (15 strokes) and incubated on ice for 5 minutes. The suspe

ORGANISM(S): Mus musculus

SUBMITTER: Draia-Nicolau Tangra Ondina 

PROVIDER: E-MTAB-16355 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress