Anatomical characterisation of somatostatin-expressing neurons belonging to the anterolateral system.

ABSTRACT: Anterolateral system (ALS) spinal projection neurons are essential for pain perception. However, these cells are heterogeneous, and there has been extensive debate about the roles of ALS populations in the different pain dimensions. We recently performed single-nucleus RNA sequencing on a developmentally-defined subset of ALS neurons, and identified 5 transcriptomic populations. One of these, ALS4, consists of cells that express Sst, the gene coding for somatostatin, and we reported that these were located in the lateral part of lamina V. Here we use a Sst^Cre mouse line to characterise these cells and define their axonal projections. We find that their axons ascend mainly on the ipsilateral side, giving off collaterals throughout their course in the spinal cord. They target vari

SUBMITTER: Ma W 

PROVIDER: S-EPMC11923155 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature