-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
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

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

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

    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 Encyclopedia of Experiments
Cancer Research
球体的免疫荧光染色:一种分析球体细胞内和细胞外抗原表达的技术
球体的免疫荧光染色:一种分析球体细胞内和细胞外抗原表达的技术
Encyclopedia of Experiments
Cancer Research
A subscription to JoVE is required to view this content.  Sign in or start your free trial.
Encyclopedia of Experiments Cancer Research
Immunofluorescent Staining of Spheroids: A Technique to Analyze Spheroids for Expression of Intra- and Extracellular Antigen Expression

球体的免疫荧光染色:一种分析球体细胞内和细胞外抗原表达的技术

Protocol
9,290 Views
04:29 min
April 30, 2023
AI Banner

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

Transcript

- 球状体是三维体外细胞培养模型。对于免疫荧光染色,首先,在多孔板中生成所需细胞类型的球状体培养物。使用带有宽孔尖端的微量移液器收集球体,注意避免因剪切力而破裂。

接下来,固定和透化球体以使单个细胞具有渗透性。现在,与含有蛋白质的溶液一起孵育,以阻断细胞表面的非特异性蛋白质相互作用位点。用所需的一抗混合物处理球状体。孵育抗体以与细胞表面的靶分子结合。

接下来,用对一抗具有特异性的荧光标记的二抗溶液标记球状体。最后,用合适的荧光 DNA 结合染料处理球状体以对细胞核进行染色。使用激光扫描荧光显微镜,在不同光学平面上对球体的多个光学横截面进行成像。

捕获的图像反映了荧光标记的细胞核和感兴趣的抗原。使用相关软件合并堆栈以获得 3D 球体的最终合成图像。在以下方案中,我们将对在兴奋剂 TGF β 1 存在下培养的胰腺成纤维细胞和癌症相关成纤维细胞的球体进行免疫荧光染色。

- 首先,切掉移液器吸头的末端以扩大孔口。孵育完成后,根据实验条件或要分析的蛋白质,使用此切割移液器吸头将微球收集到一个 1.5 mL 反应管中。以 1,000 倍 g 离心球体约 30 至 60 秒。通过移液小心地去除含有甲基纤维素的上清液,确保不会干扰沉淀的球体。

- 将球体转移到反应管时要特别小心。确保切割尖端时没有剪切应力。收集所有椭球体也很重要。在洗涤步骤中,确保不会因吸入而丢失球状体。

- 要用 50 μL 1X PBS 洗涤球状体,请以 1,000 倍 g 离心 30 至 60 秒,然后通过移液小心地去除 PBS。根据要染色的蛋白质,在室温下用 50 μL 4% 多聚甲醛的 PBS 溶液固定球状体 20 分钟。

如前所述,用 PBS 洗涤球体。在室温下用 0.1% Triton X 的 PBS 溶液透化细胞 4 分钟。然后如前所述,在 PBS 中洗涤球体 3 次。将含有 5% FBS 和 2% BSA 的 PBS 添加到球状体中,并在室温下孵育 1 小时以封闭非特异性蛋白质相互作用位点。

现在,将球体与 30 微升一抗在 PBS 中,含 2.5% FBS 和 1% BSA 在 4 摄氏度下孵育过夜。第二天,如前所述,在 PBS 中洗涤球体 3 次。

之后,将球状体与 30 μL 二抗在含 2.5% FBS 和 1% BSA 的 PBS 中在室温下孵育 90 分钟。如前所述,在 PBS 中洗涤球体 3 次。

接下来,将细胞与 30 μL DAPI 染色溶液在室温下孵育 4 分钟。如前所述,在 PBS 中洗涤球体一次。使用玻璃巴斯德移液器,将球体放在载玻片上,加入一滴 PBS。使用激光扫描显微镜通过荧光显微镜以 10 倍的放大倍率对球体进行成像。在 Z 堆栈的不同光学平面上取椭球体的不同光学横截面。

Related Videos

小鼠颅面组织和未切除骨骼的组织制备及免疫染色

10:03

小鼠颅面组织和未切除骨骼的组织制备及免疫染色

Related Videos

13K Views

评估癌细胞3D球形培养中的细胞活力和死亡

10:33

评估癌细胞3D球形培养中的细胞活力和死亡

Related Videos

28.6K Views

3D球形模型作为癌症相关纤维细胞分化和入侵体内研究的更多生理系统

06:27

3D球形模型作为癌症相关纤维细胞分化和入侵体内研究的更多生理系统

Related Videos

9.2K 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
About JoVE
  • Overview
  • Leadership
Others
  • JoVE Newsletters
  • JoVE Help Center
  • Blogs
  • Site Maps
Contact Us Recommend to Library
JoVE logo

Copyright © 2025 MyJoVE Corporation. All rights reserved

Privacy Terms of Use Policies
WeChat QR code