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1.
Nat Rev Genet ; 24(8): 550-572, 2023 08.
Article in English | MEDLINE | ID: mdl-37002403

ABSTRACT

Recent advances in single-cell technologies have enabled high-throughput molecular profiling of cells across modalities and locations. Single-cell transcriptomics data can now be complemented by chromatin accessibility, surface protein expression, adaptive immune receptor repertoire profiling and spatial information. The increasing availability of single-cell data across modalities has motivated the development of novel computational methods to help analysts derive biological insights. As the field grows, it becomes increasingly difficult to navigate the vast landscape of tools and analysis steps. Here, we summarize independent benchmarking studies of unimodal and multimodal single-cell analysis across modalities to suggest comprehensive best-practice workflows for the most common analysis steps. Where independent benchmarks are not available, we review and contrast popular methods. Our article serves as an entry point for novices in the field of single-cell (multi-)omic analysis and guides advanced users to the most recent best practices.


Subject(s)
Gene Expression Profiling , Proteomics , Gene Expression Profiling/methods , Single-Cell Analysis/methods
2.
Neuron ; 110(14): 2283-2298.e9, 2022 07 20.
Article in English | MEDLINE | ID: mdl-35649415

ABSTRACT

A single sub-anesthetic dose of ketamine produces a rapid and sustained antidepressant response, yet the molecular mechanisms responsible for this remain unclear. Here, we identified cell-type-specific transcriptional signatures associated with a sustained ketamine response in mice. Most interestingly, we identified the Kcnq2 gene as an important downstream regulator of ketamine action in glutamatergic neurons of the ventral hippocampus. We validated these findings through a series of complementary molecular, electrophysiological, cellular, pharmacological, behavioral, and functional experiments. We demonstrated that adjunctive treatment with retigabine, a KCNQ activator, augments ketamine's antidepressant-like effects in mice. Intriguingly, these effects are ketamine specific, as they do not modulate a response to classical antidepressants, such as escitalopram. These findings significantly advance our understanding of the mechanisms underlying the sustained antidepressant effects of ketamine, with important clinical implications.


Subject(s)
Ketamine , Animals , Antidepressive Agents/pharmacology , Hippocampus , KCNQ2 Potassium Channel/genetics , Ketamine/pharmacology , Ketamine/therapeutic use , Mice , Nerve Tissue Proteins , Neurons
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