Detecting Migration and Infiltration of Neutrophils in Mice

Qingyi Lu; Kai Yuan; Xiaohong Li; Haixu Jiang; Guiyang Huo; Wenrui Jia; Guangrui Huang; Anlong Xu

doi:10.3791/60543

Détection de la migration et de l’infiltration des neutrophiles chez les souris

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Detecting Migration and Infiltration of Neutrophils in Mice

Détection de la migration et de l’infiltration des neutrophiles chez les souris

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10:33 min

February 6, 2020

DOI: 10.3791/60543-v

Qingyi Lu*¹, Kai Yuan*¹, Xiaohong Li¹, Haixu Jiang¹, Guiyang Huo¹, Wenrui Jia¹, Guangrui Huang¹, Anlong Xu^1,2

¹School of Life Sciences,Beijing University of Chinese Medicine, ²State Key Laboratory of Biocontrol, Department of Biochemistry, School of Life Sciences,Sun Yat-Sen (Zhongshan) University

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Overview

This study presents three methods to assess neutrophil migration and infiltration, both in vivo and in vitro, using mouse models. These methods aim to enhance the understanding of neutrophil dynamics in inflammatory diseases and may lead to the development of targeted therapeutics.

Key Study Components

Research Area

Inflammatory diseases
Neutrophil biology
Therapeutic discovery

Background

Neutrophils play a crucial role in the immune response and inflammation.
The migration of neutrophils is a key factor in the pathophysiology of various diseases such as arthritis.
Understanding neutrophil infiltration can inform therapeutic strategies.

Methods Used

Air pouch assay for assessing neutrophil migration in vivo
Mouse arthritis model to study pathological neutrophil infiltration
Quantification of neutrophil ratios using automated hematology analysis

Main Results

The methods effectively quantify neutrophil migration and infiltration in the inflammation sites.
Different treatments were assessed for their effects on neutrophil behavior.
Results indicate potential therapeutic avenues for conditions like arthritis and inflammatory bowel disease.

Conclusions

This study demonstrates the utility of specific methods for evaluating neutrophil dynamics in vivo and in vitro.
These approaches may pave the way for novel therapeutic developments targeting inflammation.

Frequently Asked Questions

What are the main methods used to assess neutrophil migration?

The study utilizes the air pouch assay and a mouse arthritis model to evaluate neutrophil behavior.

How do the findings contribute to understanding inflammatory diseases?

The methods allow researchers to quantify neutrophil dynamics, providing insights into the mechanisms of inflammation.

What types of treatments were tested in the study?

The study tested different treatments by injecting substances such as LPS to induce local inflammation in the air pouch model.

Why is neutrophil migration important in inflammatory diseases?

Neutrophils are key players in the immune response, and their migration is critical to understanding the inflammatory process.

What implications do these methods have for therapeutic discovery?

The findings could influence the development of targeted therapies for conditions characterized by excessive neutrophil activity.

Who conducted the experiments described in the study?

The experiments were conducted by Qingyi Lu and Haixu Jiang, post-graduate students from the lab involved in the research.

Ici, nous présentons trois méthodes pour évaluer la migration et l’infiltration de neutrophiles in vivo et in vitro. Ces méthodes peuvent être utilisées pour découvrir des thérapies prometteuses ciblant la migration des neutrophiles.

Cette méthode tente de décrire trois méthodes fréquemment utilisées pour évaluer la migration des neutrophiles normaux in vivo et in vitro ainsi que l’infiltration de neutrophiles pathologiques dans le modèle de l’arthrite de souris. Nous pensons que cette méthode pourrait être utile pour d’autres chercheurs dans ce domaine. Ce protocole contient les détails méthodologiques pour évaluer la capacité de migration des neutrophiles dans les sites d’inflammation en utilisant l’analyse de poche d’air et l’arthrite induite par l’adjuvant.

Les implications de cette technique s’étendent vers la thérapie d’arthrite en comparant le groupe modèle avec le groupe de traitement. Cette méthode pourrait fournir un aperçu de la maladie inflammatoire et peut être appliquée aux maladies inflammatoires de l’intestin. Qingyi Lu et Haixu Jiang, étudiants de troisième cycle de notre laboratoire, feront la démonstration de la procédure.

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