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Highly dynamic miRNA networks mediate developmental transitions during human brain development. Single-cell networks were detected by combining single-cell miRNA and mRNA profiling with HITS-CLIP analyzed with bipartite and co-expression networks.
Bienkowski et al. have created a new subregional atlas of the mouse hippocampus that integrates gene expression with anatomical connectivity to reveal the multiscale organization of the hippocampus and its connections throughout the brain.
The BRAINcode consortium found that tens of thousands of transcribed noncoding elements (TNEs) from the ‘dark matter’ of our genome are active in dopamine neurons. They may be linked to schizophrenia, Parkinson’s disease, and addiction.
Poulin et al. developed intersectional genetic approaches to target dopamine neuron subtypes defined by combinatorial gene expression. They demonstrate that dopamine neuron subtypes display distinctive projection patterns to forebrain regions.
The authors surveyed gene expression across cortical development and in individuals with schizophrenia. Three-fold more risk variants influenced expression than known. Risk genes showed developmental regulation, while diagnosis changes implicated largely treatment effects.
This PsychENCODE resource presents 157 reference maps for open-chromatin-associated histone methylation and acetylation in prefrontal and anterior cingulate cortex, linking the neuronal epigenome to the genetic risk architecture of schizophrenia.
A localized set of mRNA at the synapse facilitates synapse formation and plasticity. The authors show an enrichment of N6-methyladenosine (m6A) modifications of these mRNA at the synapse and link m6A recognition by molecular readers to synaptic function.
Using single-cell RNA-seq, the authors produced a comprehensive atlas of the somatosensory spinal cord. They found that neuron types build the dorsal horn by a discrete layering and to be differentially engaged by noxious heat and cold.
The authors developed a CUBIC tissue clearing and expansion method to generate an editable, point-based single-cell-resolution brain atlas. This atlas, termed CUBIC-Atlas, can be used for unbiased systems-level cellular analysis in whole mouse brain.
Using single-cell RNA-seq, the authors show that early developmental neurogenesis in the dentate gyrus of the hippocampus is largely conserved in the adult, but with a perinatal transformation of stem cells to an adult type.