Enhancement of neural regeneration

增强神经再生

• 批准号: 10582269
• 负责人: Christian Petersen
• 金额: $ 8万
• 依托单位: NORTHWESTERN UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2023-07-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10582269
• 关键词: Address; Adult; Biological; Biology; Brain; Cells; Disease; Foundations; Genetic Transcription; Goals; Grant; Injury; Lead; Location; Molecular Target; Natural regeneration; Nerve Regeneration; Nervous System Trauma; Organ; Organism; Planarians; Process; Regenerative capacity; Signal Transduction; System; Tissues; information model; injury and repair; insight; neural repair; neurogenesis; regenerative; regenerative growth; regenerative tissue; relating to nervous system; repaired; restoration; stem cells; tissue regeneration

Project Summary/Abstract Organisms with regenerative abilities have been informative models for uncovering natural mechanisms by which nervous system damage activates stem or progenitor cells for injury repair. The timing, location, and extent of injuries are not predetermined, requiring the existence of mechanisms that instruct tissue restoration activities that perfectly counter the effects of damage. A key question to understand this process is how cessation of regenerative growth is accomplished. To begin to address this question, it is essential to define the transcriptional and cell signaling systems that negatively regulate adult regenerative neurogenesis. While regenerative tissues have been extensively probed for positive regulators of regeneration, much less is known about factors that act in opposition and whose inhibition could lead to enhanced neural regeneration. In the aims of this grant, this deficit is addressed by leveraging expertise in the planarian system, which uniquely allows access to the biology of complete adult brain regeneration. Uncovering the conserved and fundamental mechanisms used by organisms to limit the extent and rate of tissue regeneration and cell turnover will provide foundational insights into understanding and ultimately treating diseases characterized by an inability to undergo sufficient neural repair.

项目总结/摘要 具有再生能力的生物体一直是揭示自然机制的信息模型， 神经系统损伤激活干细胞或祖细胞进行损伤修复。时间地点 损伤的程度不是预先确定的，需要存在指导组织修复的机制 完全抵消损害影响的活动。理解这一过程的一个关键问题是， 完成再生生长的停止。为了开始解决这个问题，必须定义 转录和细胞信号系统负调控成人再生神经发生。而 再生组织已被广泛探索再生的正调控因子，但知之甚少 这些因素起着相反的作用，抑制它们可以增强神经再生。在 这项赠款的目的，这一赤字是通过利用在Planarian系统，这独特的专业知识解决， 可以让我们了解成年人大脑再生的生物学原理揭示了保守的和基本的 生物体用于限制组织再生和细胞更新的程度和速率的机制将提供 对理解和最终治疗以无法治疗为特征的疾病的基本见解 进行充分的神经修复。

项目成果

Src acts with WNT/FGFRL signaling to pattern the planarian anteroposterior axis

• DOI: 10.1242/dev.200125
• 发表时间: 2022-04-01
• 期刊: DEVELOPMENT
• 影响因子: 4.6
• 作者: Bonar, Nicolle A.;Gittin, David, I;Petersen, Christian P.
• 通讯作者: Petersen, Christian P.

BMP suppresses WNT to integrate patterning of orthogonal body axes in adult planarians.

BMP 抑制 WNT 以整合成年涡虫中正交身体轴的模式。

• DOI: 10.1101/2023.01.10.523528
• 发表时间: 2023
• 期刊: bioRxiv : the preprint server for biology
• 作者: Clark,EleanorG;Petersen,ChristianP
• 通讯作者: Petersen,ChristianP

Wnt signaling in whole-body regeneration.

全身再生中的 Wnt 信号传导。

• DOI: 10.1016/bs.ctdb.2023.01.007
• 发表时间: 2023
• 期刊: Current topics in developmental biology
• 作者: Petersen,ChristianP

STRIPAK Limits Stem Cell Differentiation of a WNT Signaling Center to Control Planarian Axis Scaling

• DOI: 10.1016/j.cub.2019.11.068
• 发表时间: 2019-12
• 期刊: Current Biology
• 影响因子: 9.2
• 作者: Erik G. Schad;Christian P. Petersen