Molecular and genetic analysis of the juvenile sleep state

青少年睡眠状态的分子和遗传学分析

基本信息

批准号：
10675049
负责人：
MATTHEW S KAYSER
金额：
$ 40.63万
依托单位：
UNIVERSITY OF PENNSYLVANIA
依托单位国家：
美国
项目类别：
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-29 至 2025-07-31
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10675049
关键词：
Adolescent Adult Affect Anatomy Behavior Behavioral Binding Brain Cells Cellular Morphology Characteristics Childhood Circadian Rhythms Complex Courtship Data Development Dorsal Drosophila genus Equilibrium Foundations Gene Expression Profiling Genes Genetic Genetic Screening Goals Growth Homologous Gene Human Image Impairment Life Link Molecular Molecular Analysis Molecular Genetics Mus Neurocognitive Deficit Neurodevelopmental Disorder Neurons POU Domain Pathology Pathway interactions Pattern Performance Phenotype RNA Interference Regulation Regulatory Pathway Repression Research Risk Role Seminal Severity of illness Shapes Signal Transduction Sleep Sleep Deprivation Sleep disturbances Stress Structure Symptoms Synapses Testing Therapeutic Time Variant Work density design fly genetic analysis improved improvement on sleep insight juvenile animal knock-down mature animal nerve supply neural circuit neurobehavioral neurobehavioral disorder neurodevelopment novel novel therapeutics pharmacologic sleep abnormalities sleep regulation spatiotemporal synaptogenesis transcription factor young adult

项目摘要

PROJECT SUMMARY Sleep in early life is hypothesized to facilitate structural maturation of the brain. Childhood sleep disturbances portend later neurocognitive deficits and are highly prevalent across neurobehavioral disorders; sleep abnormalities during development may in fact contribute to aberrant neural circuit formation. Improving sleep by targeting regulatory pathways may thus represent a new therapeutic avenue in neurodevelopmental disease. However, the molecular and genetic factors controlling early life sleep remain largely unknown, hindering design of sleep-related strategies. In fact, there have been no genes known to control developmental changes to sleep. Using an RNAi-based genetic screen in Drosophila, we identified a transcription factor, pdm3, that regulates the juvenile sleep state. The overall goal of this proposal is to characterize the genetic and molecular pathways controlling the juvenile sleep state by investigating the function of PDM3 in Drosophila. Specifically, we will define the cellular mechanisms through which PDM3 controls juvenile sleep (Aim 1) and identify the molecular signals downstream of PDM3 that coordinate sleep ontogeny (Aim 2). We will then manipulate pdm3 to investigate how loss of the juvenile sleep state affects brain and behavioral maturation (Aim 3). Our proposal utilizes a diverse array of approaches, including behavioral, genetic, and imaging. Dissecting the molecular genetic control of sleep ontogeny will yield new insights into the regulation of early life sleep, deepening our understanding of the link between sleep ontogeny and neurobehavioral pathology.

项目摘要假设在早期睡眠以促进大脑的结构成熟。儿童睡眠障碍预示后来的神经认知缺陷，并且在神经行为疾病中非常普遍；睡觉发育过程中的异常实际上可能导致异常的神经回路形成。改善睡眠因此，通过针对监管途径，可以代表神经发育中的新治疗大道疾病。但是，控制早期睡眠的分子和遗传因素在很大程度上尚不清楚，与睡眠有关的策略的阻碍设计。实际上，尚无基因控制发展的基因睡眠变化。使用果蝇中的基于RNAi的遗传筛选，我们确定了转录因子， PDM3，调节少年睡眠状态。该提议的总体目标是表征遗传通过研究PDM3在果蝇。具体而言，我们将定义PDM3控制青少年睡眠的细胞机制（AIM 1）并确定PDM3下游的分子信号，该信号是协调睡眠个体发育的（AIM 2）。我们然后将操纵PDM3，以调查少年睡眠状态的损失如何影响大脑和行为成熟（目标3）。我们的建议利用各种方法，包括行为，遗传和成像。解剖对睡眠个体发育的分子遗传控制将产生对调节的新见解早期的睡眠，加深了我们对睡眠个体发育与神经行为之间联系的理解病理。