-1::1
Simple Hit Counter
Skip to content

Products

Solutions

×
×
Sign In

CN

EN - EnglishCN - 简体中文DE - DeutschES - EspañolKR - 한국어IT - ItalianoFR - FrançaisPT - Português do BrasilPL - PolskiHE - עִבְרִיתRU - РусскийJA - 日本語TR - TürkçeAR - العربية
Sign In Start Free Trial

RESEARCH

JoVE Journal

Peer reviewed scientific video journal

Behavior
Biochemistry
Bioengineering
Biology
Cancer Research
Chemistry
Developmental Biology
View All
JoVE Encyclopedia of Experiments

Video encyclopedia of advanced research methods

Biological Techniques
Biology
Cancer Research
Immunology
Neuroscience
Microbiology
JoVE Visualize

Visualizing science through experiment videos

EDUCATION

JoVE Core

Video textbooks for undergraduate courses

Analytical Chemistry
Anatomy and Physiology
Biology
Calculus
Cell Biology
Chemistry
Civil Engineering
Electrical Engineering
View All
JoVE Science Education

Visual demonstrations of key scientific experiments

Advanced Biology
Basic Biology
Chemistry
View All
JoVE Lab Manual

Videos of experiments for undergraduate lab courses

Biology
Chemistry

BUSINESS

JoVE Business

Video textbooks for business education

Accounting
Finance
Macroeconomics
Marketing
Microeconomics

OTHERS

JoVE Quiz

Interactive video based quizzes for formative assessments

Authors

Teaching Faculty

Librarians

K12 Schools

Biopharma

Products

RESEARCH

JoVE Journal

Peer reviewed scientific video journal

JoVE Encyclopedia of Experiments

Video encyclopedia of advanced research methods

JoVE Visualize

Visualizing science through experiment videos

EDUCATION

JoVE Core

Video textbooks for undergraduates

JoVE Science Education

Visual demonstrations of key scientific experiments

JoVE Lab Manual

Videos of experiments for undergraduate lab courses

BUSINESS

JoVE Business

Video textbooks for business education

OTHERS

JoVE Quiz

Interactive video based quizzes for formative assessments

Solutions

Authors
Teaching Faculty
Librarians
K12 Schools
Biopharma

Language

zh_CN

EN

English

CN

简体中文

DE

Deutsch

ES

Español

KR

한국어

IT

Italiano

FR

Français

PT

Português do Brasil

PL

Polski

HE

עִבְרִית

RU

Русский

JA

日本語

TR

Türkçe

AR

العربية

    Menu

    JoVE Journal

    Behavior

    Biochemistry

    Bioengineering

    Biology

    Cancer Research

    Chemistry

    Developmental Biology

    Engineering

    Environment

    Genetics

    Immunology and Infection

    Medicine

    Neuroscience

    Menu

    JoVE Encyclopedia of Experiments

    Biological Techniques

    Biology

    Cancer Research

    Immunology

    Neuroscience

    Microbiology

    Menu

    JoVE Core

    Analytical Chemistry

    Anatomy and Physiology

    Biology

    Calculus

    Cell Biology

    Chemistry

    Civil Engineering

    Electrical Engineering

    Introduction to Psychology

    Mechanical Engineering

    Medical-Surgical Nursing

    View All

    Menu

    JoVE Science Education

    Advanced Biology

    Basic Biology

    Chemistry

    Clinical Skills

    Engineering

    Environmental Sciences

    Physics

    Psychology

    View All

    Menu

    JoVE Lab Manual

    Biology

    Chemistry

    Menu

    JoVE Business

    Accounting

    Finance

    Macroeconomics

    Marketing

    Microeconomics

Start Free Trial
Loading...
Home
JoVE Journal
Neuroscience
成人希马神经前体细胞的乳化电路特定调节
成人希马神经前体细胞的乳化电路特定调节
JoVE Journal
Neuroscience
A subscription to JoVE is required to view this content.  Sign in or start your free trial.
JoVE Journal Neuroscience
Assaying Circuit Specific Regulation of Adult Hippocampal Neural Precursor Cells

成人希马神经前体细胞的乳化电路特定调节

Full Text
6,843 Views
08:52 min
July 24, 2019

DOI: 10.3791/59237-v

Luis J. Quintanilla1,2,3, Chia-Yu Yeh1,2, Hechen Bao1,2, Christina Catavero1,2,3, Juan Song1,2,3

1Department of Pharmacology,University of North Carolina Chapel Hill, 2Neuroscience Center,University of North Carolina Chapel Hill, 3Neuroscience Curriculum,University of North Carolina Chapel Hill

AI Banner

Please note that some of the translations on this page are AI generated. Click here for the English version.

Overview

This protocol describes a method for analyzing the behavior of adult neural stem/progenitor cells when subjected to chemogenetic manipulation of specific local neural circuits. The approach aims to elucidate how neural circuit stimulation or inhibition impacts adult neurogenesis.

Key Study Components

Area of Science

  • Neuroscience
  • Neurogenesis
  • Cell Biology

Background

  • Investigation of adult neural stem cell proliferation.
  • Understanding the regulation by specific neural circuits.
  • Role of neurotransmitters in adult neurogenesis.
  • Micro-manipulation techniques to reduce stress in animal models.

Purpose of Study

  • To evaluate the effect of targeted neural circuit manipulation on adult neurogenesis.
  • To assess the proliferation of neural stem cells.
  • To determine the functionality of specific neurotransmitter-releasing cell types.

Methods Used

  • Use of tissue sections and immunohistochemistry for analysis.
  • Adult neural stem/progenitor cells manipulated via chemogenetic techniques.
  • No multiomics workflow is mentioned in the study.
  • Key steps include tissue preparation, staining, and microscopy imaging.
  • Quantification of cell density and neurogenesis using imaging software.

Main Results

  • Confirmed the effectiveness of targeted neural circuit manipulation on neural stem cell proliferation.
  • Demonstrated fluorescent labeling of specific cell types involved in neurogenesis.
  • Proliferation rates of nestin-positive cells and their morphological characteristics analyzed.
  • Effective quantification methods established for evaluating neurogenesis across different experimental conditions.

Conclusions

  • The study illustrates the impact of local circuit activity on the regulation of neural stem cells.
  • The methodology enhances the understanding of neurogenic processes in the adult brain.
  • Possible implications for therapeutic strategies targeting neurogenesis in neurological diseases.

Frequently Asked Questions

What are the advantages of this protocol?
This protocol allows for precise manipulation of neural circuits while minimizing stress in animal subjects, enhancing the study’s reliability.
How is the neural stem cell proliferation measured?
Proliferation is assessed through fluorescence microscopy, identifying cells labeled with thymidine analogs and counting their density.
What type of tissue is used in this study?
Adult brain tissue sections are used to analyze the behavior of neural stem/progenitor cells under specific conditions.
How can this method be adapted for other studies?
The methodology can be tailored to investigate other neurotransmitter systems or different neural pathways associated with neurogenesis.
What are potential limitations of this approach?
The results may be influenced by the specific conditions set during circuit manipulation or the accessibility of target cells in the tissue sections.
What data outcomes can be obtained from this protocol?
Outcomes include cell density measurements, identification of proliferating progenitor cells, and insights into the regulatory effects of neurotransmitters on neurogenesis.

该协议的目的是描述一种分析成人神经干细胞/祖细胞行为的方法,以响应特定局部神经回路的化学遗传学操作。

该协议可以回答大脑中的各种回路如何调节成人神经生成,特别是刺激或抑制神经回路如何影响成人神经干细胞的增殖。这种技术的优点是,它能够专门瞄准所需的神经回路,并减少引入给动物的应力量。这种方法可以提供洞察不同的大脑回路如何调节成人神经发生,特别是释放某些神经递质的特定细胞类型如何调节成人神经干细胞增殖。

要开始此过程,请将组织部分放在 PBS 中,然后按顺序从前到后顺序在带正带的幻灯片上安装五到八个部分。让组织部分在室温下干燥两到五分钟,并完全粘附在幻灯片上。接下来,在容器中准备柠檬酸盐缓冲区。

在微波炉中加热柠檬酸盐缓冲液五分钟,直到溶液沸腾。同时,将安装部分放在玻璃滑架中。五分钟后,小心地将带部分的滑动支架放入移液器盒中。

将微波炉的电源设置为 50%,烹饪时间设置为 7 分钟。启动计时器 7 分钟,并监视解决方案。当溶液开始沸腾时,停止微波炉,并在煮沸停止后继续微波炉。

计时器用完后停止,即使微波炉上的烹饪时间尚未完成。此步骤的目标是将水保持在沸点温度以下,而不让水过度沸腾。煮沸太多会从幻灯片中去除组织部分。

然后,将带柠檬酸盐缓冲液的暖盒和组织滑到冰桶中进行冷却。盖上盒子,等待约30分钟,或直到溶液冷却触摸,然后再继续到胸腺素模拟染色。要用胸腺素模拟染色组织部分,请从柠檬酸盐缓冲液中去除组织部分。

让组织部分干燥并完全粘附在幻灯片上,然后使用疏水笔绘制边框。接下来,用渗透缓冲液渗透各部分 20 到 30 分钟。每次使用 TBS-triton 清洗两次,每次五分钟。

然后,准备一个Edu反应解决方案。孵育Edu反应溶液中的部分30分钟至1小时。随后,在 TBS-triton 中清洗三次,每次五分钟。

用铝箔盖住幻灯片,或将它们放在受光线保护的室内,以防止在此步骤后受到光线的光。在此阶段,使用荧光显微镜检查 Edu 反应是否有效。如果反应有效,应观察有教育标记的细胞。

现在,使用与二次抗体在同一动物中培养的阻塞缓冲液阻断安装的组织部分,30分钟到1小时。然后,每次用 TBS-triton 洗两次,每次五分钟。在阻断步骤中,通过混合阻断缓冲液中的原抗体来准备原抗体溶液。

随后,每张幻灯片添加250微升原抗体溶液,以确保组织部分完全淹没,并在室温下孵育过夜。第二天,用TBS-triton清洗组织部分三次,每次洗涤五分钟,以去除多余的原抗体。然后,在室温下在阻断缓冲液中培养在阻断缓冲液中准备的氟磷结合二级抗体中的组织部分两个小时。

在TBS-triton中清洗组织部分三次,每次五分钟,以去除多余的二级抗体。接下来,在 PBS 中应用 300 微摩尔 DAPI 溶液,在室温下应用 1 到 100 分钟,15 分钟。之后,在PBS中清洗组织部分三次,每次五分钟,以去除多余的DAPI,并使用棉签去除组织周围的PAP笔圈。

在应用安装介质并盖上盖玻片之前,请让各部分干燥。使用成像软件,将每个凹痕陀螺部分的图像打开为复合图像,通道以不同颜色合并,以便于可视化共体化。然后,使用多边形选择工具测量每个部分中凹痕陀螺的面积,并记录每个鼠标的所有部分。

这将是用于计算密度的凹陷陀螺的面积。使用插件细胞计数器在插件下找到,分析,细胞计数器,细胞计数器,记录在凹陷陀螺的细胞数量,具有结肠原抗体和胸腺素模拟Edu从复合图像。此外,使用径向过程记录 Edu 阳性和嵌套阳性细胞的总数。

在巢中,关注细胞的形态是非常重要的。如果量化神经干细胞,请确保只有具有径向过程的细胞被量化。在电子表格软件中输入单元格计数,以编译所有数据以在以后进行分析。

例如,为了获得干细胞密度,将巢状阳性细胞和水蛋白细胞的总和除以每个动物的凹陷陀螺体积之和。假设每个步骤都是一微米,通过将面积与总 Z 步长增量相乘来计算每个部分的体积。在此协议中,总步骤应接近 40,因为组织被分切在 40 微米。

随后,计算增殖细胞的总数、增殖神经干细胞的百分比以及刺激反边青苔细胞后的总增殖细胞。通过使用胸腺素模拟Eddu和抗原检索的巢渍,增殖神经干细胞成功地标记。此外,通过省略抗原检索步骤,Tbr2阳性神经祖细胞和神经细胞和DCX阳性神经细胞和不成熟的神经元被标记。

下面是一个量化并用于计算细胞密度的区域的示例,下面是幻灯片上安装组织的示例。显示成功实验和低于标准的实验进行比较。最后,从成功的实验中可以获得几种不同的量化。

定量包括增殖神经干细胞的密度、增殖神经干细胞的百分比、总增殖细胞和总干细胞池。在青苔细胞的反向刺激下,观察到神经干细胞增殖的减少。这个过程中最重要的一步是控制微波炉中的组织沸腾。

如果煮得太久,组织部分就会受损。遵循这个程序后,可以注射不同的病毒载体,以目标相同的电路。例如,如果一个人正在刺激神经回路,一个人可以抑制它使用抑制性DD一病毒。

该协议中介绍的技术并不新颖。然而,这个协议的优势在于它全面涵盖了回答电路如何影响成人神经生成的问题所需的所有步骤。

View the full transcript and gain access to thousands of scientific videos

Sign In Start Free Trial

Explore More Videos

神经科学 问题 149 成人神经发生 DREADD 神经干细胞 海马 登特吉鲁斯 免疫荧光

Related Videos

成人北极黄鼠海马神经干细胞的生长和分化

09:44

成人北极黄鼠海马神经干细胞的生长和分化

Related Videos

9.9K Views

免疫荧光染色用于观察小鼠脑切片中增殖的神经干细胞

03:59

免疫荧光染色用于观察小鼠脑切片中增殖的神经干细胞

Related Videos

669 Views

热诱导抗原修复:在成人海马神经发生过程中检测和鉴定祖细胞类型的有效方法

09:38

热诱导抗原修复:在成人海马神经发生过程中检测和鉴定祖细胞类型的有效方法

Related Videos

12.9K Views

一个鼠标,两种文化:隔离和成人神经的培养干细胞从单个小鼠的两个神经源性区

09:52

一个鼠标,两种文化:隔离和成人神经的培养干细胞从单个小鼠的两个神经源性区

Related Videos

39.1K Views

免疫组化和多标签与同一宿主物种抗体研究成人神经发生

09:24

免疫组化和多标签与同一宿主物种抗体研究成人神经发生

Related Videos

27.2K Views

神经干细胞和祖细胞来自成年小鼠脑室下区细胞分选和实时成像的细胞周期动力学

09:27

神经干细胞和祖细胞来自成年小鼠脑室下区细胞分选和实时成像的细胞周期动力学

Related Videos

14.6K Views

分离和成人犬海马神经前体扩张

09:37

分离和成人犬海马神经前体扩张

Related Videos

7.5K Views

小鼠脑海马组织机械和酶解离联合

07:14

小鼠脑海马组织机械和酶解离联合

Related Videos

4.6K Views

冷冻切片解剖成人室管膜下区,用于准确和深入的定量蛋白质组分析

06:24

冷冻切片解剖成人室管膜下区,用于准确和深入的定量蛋白质组分析

Related Videos

3.9K Views

将人干细胞衍生的GABA能神经元移植到出生后早期小鼠海马体中以减轻神经发育障碍

05:00

将人干细胞衍生的GABA能神经元移植到出生后早期小鼠海马体中以减轻神经发育障碍

Related Videos

2.9K Views

JoVE logo
Contact Us Recommend to Library
Research
  • JoVE Journal
  • JoVE Encyclopedia of Experiments
  • JoVE Visualize
Business
  • JoVE Business
Education
  • JoVE Core
  • JoVE Science Education
  • JoVE Lab Manual
  • JoVE Quizzes
Solutions
  • Authors
  • Teaching Faculty
  • Librarians
  • K12 Schools
  • Biopharma
About JoVE
  • Overview
  • Leadership
Others
  • JoVE Newsletters
  • JoVE Help Center
  • Blogs
  • JoVE Newsroom
  • Site Maps
Contact Us Recommend to Library
JoVE logo

Copyright © 2026 MyJoVE Corporation. All rights reserved

Privacy Terms of Use Policies
WeChat QR code