A Rapid Human Lung Tissue Dissociation Protocol Maximizing Cell Yield and Minimizing Cellular Stress.
Am J Respir Cell Mol Biol
; 2024 Jul 03.
Article
em En
| MEDLINE
| ID: mdl-38959415
ABSTRACT
The human lung is a complex organ comprised of diverse populations of epithelial, mesenchymal, vascular and immune cells, which gains even greater complexity during disease states. To effectively study the lung at a single cell level, a dissociation protocol that achieves the highest yield of viable cells of interest with minimal dissociation-associated protein or transcription changes key. Here, we detail a rapid collagenase-based dissociation protocol (Col-Short), which provides a high-yield single cell suspension suitable for a variety of downstream applications. Diseased human lung explants were obtained and dissociated through the Col-Short protocol and compared to four other dissociation protocols. Resulting single cell suspensions were then assessed with flow cytometry, differential staining, and quantitative real-time PCR to identify major hematopoietic and non-hematopoietic cell populations, as well as their activation states. We observed that the Col-Short protocol provides the greatest number of cells per gram of lung tissue with no reduction in viability when compared to previously described dissociation protocols. Col-Short had no observable surface protein marker cleavage as well as lower expression of protein activation markers and stress-related transcripts compared to four other protocols. The Col-Short dissociation protocol can be used as a rapid strategy to generate single cells for respiratory cell biology research.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Am J Respir Cell Mol Biol
Ano de publicação:
2024
Tipo de documento:
Article