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Biology
Isolamento de CD4+ T-células e análise de circulação folicular-T Helper (cTfh) célula ...
Isolamento de CD4+ T-células e análise de circulação folicular-T Helper (cTfh) célula ...
JoVE Journal
Biology
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JoVE Journal Biology
Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper (cTfh) Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry

Isolamento de CD4+ T-células e análise de circulação folicular-T Helper (cTfh) célula subconjuntos de citometria de fluxo de 6 cores usando o sangue periférico

Full Text
12,898 Views
07:39 min
January 7, 2019

DOI: 10.3791/58431-v

Elliot Byford1, Matthew Carr1, Lucia Piñon2, Matthew J. Ahearne1, Simon D. Wagner1

1Leicester Cancer Research Centre and Ernest and Helen Scott Haematology Research Institute,University of Leicester, 2MRC Toxicology Unit,University of Leicester

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

Overview

This article presents a protocol for isolating and characterizing CD4 + T-cell subsets from human peripheral blood. It emphasizes the use of flow cytometry to analyze the proportions of T-follicular helper cell subsets in different health states.

Key Study Components

Research Area

  • Immunology
  • T-cell biology

Background

  • CD4 + T-cells play a crucial role in the adaptive immune response.
  • T-follicular helper cells are vital for B-cell responses and antibody production.

Methods Used

  • Flow cytometry for cell subset analysis
  • Human peripheral blood as the biological system
  • Batch processing technique for sample analysis

Main Results

  • Identification of differences in T-follicular helper cell subsets between healthy and diseased individuals.
  • Proven correlation of T-follicular helper cell subsets with clinical disease markers.
  • Verification of method efficacy and practicality in clinical settings.

Conclusions

  • This study demonstrates a reliable method for evaluating T-follicular helper subsets in various health statuses.
  • The findings are significant for understanding disease progression and potential biomarkers.

Frequently Asked Questions

What are CD4 + T-cells?
CD4 + T-cells are a type of white blood cell that plays an essential role in the immune system, particularly in helping other cells respond to infections.
How does flow cytometry work?
Flow cytometry is a technology used to analyze the physical and chemical characteristics of cells or particles as they flow in a fluid stream.
Why are T-follicular helper cells important?
T-follicular helper cells assist in the activation of B-cells and the production of antibodies, which are critical for immune defense.
Can this method be used in clinical settings?
Yes, the protocol developed in this study is practical for use in clinical laboratories for assessing disease states.
What advantages does this technique offer?
The method is fast, allows batch processing of samples, and maintains cell viability for further analyses.
How are the results of T-follicular helper subsets utilized?
Results can be used as biomarkers for disease progression and severity in patients.
Who contributed to this research?
Dr. Lucia Pi has contributed significantly to demonstrating this procedure.

Aqui, um protocolo para o isolamento e caracterização de CD4+ células T subconjuntos do sangue periférico humano é descrito. Purificado CD4+ T-células são analisadas por citometria de fluxo para determinar proporções de subconjuntos de célula auxiliar T-folicular.

Este método pode ajudar a demonstrar as diferenças entre subconjuntos de células auxiliares T-foliculares circulantes em estados saudáveis e doentes. As principais vantagens desta técnica são que é rápido, que as amostras podem ser processadas em lote, e que as células permanecem vivas para análise funcional a jusante. Esta técnica facilita a avaliação dos subconjuntos auxiliares T-foliculares circulantes como biomarcadores para a progressão da doença, pois se correlacionam com marcadores de gravidade clínica. Ajudando na demonstração deste procedimento será a Dra.

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