Isolation and transcriptional profiling of antigen-presenting cells from mouse lung and MLNs following intranasal immunization

STAR Protoc. 2024 Dec 20;5(4):103400. doi: 10.1016/j.xpro.2024.103400. Epub 2024 Oct 19.

Abstract

Dendritic cells (DCs) play a central role in the initiation of the adaptive immune response. Here, we present a protocol for isolating and transcriptionally profiling antigen-presenting cells (APCs) from the mouse lung and mediastinal lymph nodes (MLNs) following intranasal immunization. We describe steps for preparing single-cell suspensions from the lung and MLN, along with the detection and RNA sequencing (RNA-seq) of antigen-presenting DCs. This protocol offers a broadly applicable approach for identifying variations in DC subpopulations under diverse experimental conditions. For complete details on the use and execution of this protocol, please refer to Youhui et al.1.

Keywords: Cell isolation; Flow Cytometry; Immunology; Molecular Biology; RNA-Seq.

MeSH terms

  • Administration, Intranasal*
  • Animals
  • Antigen-Presenting Cells* / cytology
  • Antigen-Presenting Cells* / immunology
  • Cell Separation / methods
  • Dendritic Cells / immunology
  • Gene Expression Profiling / methods
  • Immunization* / methods
  • Lung* / cytology
  • Lung* / immunology
  • Lymph Nodes* / cytology
  • Lymph Nodes* / immunology
  • Mice
  • Mice, Inbred C57BL