Skip to main content
Top
Published in: Respiratory Research 1/2022

Open Access 01-12-2022 | Research

Functional changes in long-term incubated rat precision-cut lung slices

Authors: Sarah Marie Nußbaum, Julia Krabbe, Svenja Böll, Aaron Babendreyer, Christian Martin

Published in: Respiratory Research | Issue 1/2022

Login to get access

Abstract

Background

Respiratory diseases represent a global health burden. Because research on therapeutic strategies of airway diseases is essential, the technique of precision-cut lung slices (PCLS) has been developed and widely studied. PCLS are an alternative ex vivo model and have the potential to replace and reduce in vivo animal models. So far, the majority of studies was conducted with short-term cultivated PCLS (≤ 72 h). As there is large interest in research of chronic diseases and chronic toxicity, feasibility of cultivating human PCLS long-term over 2 weeks and recently over 4 weeks was investigated by another research group with successful results. Our aim was to establish a model of long-term cultivated rat PCLS over a period of 29 days.

Methods

Rat PCLS were cultured for 29 days and analysed regarding viability, histopathology, reactivity and gene expression at different time points during cultivation.

Results

Cultivation of rat PCLS over a 29-day time period was successful with sustained viability. Furthermore, the ability of bronchoconstriction was maintained between 13 and 25 days, depending on the mediator. However, reduced relaxation, altered sensitivity and increased respiratory tone were observed. Regarding transcription, alteration in gene expression pattern of the investigated target genes was ascertained during long-term cultivation with mixed results. Furthermore, the preparation of PCLS seems to influence messenger ribonucleic acid (mRNA) expression of most target genes. Moreover, the addition of fetal bovine serum (FBS) to the culture medium did not improve viability of PCLS. In contrast to medium without FBS, FBS seems to affect measurements and resulted in marked cellular changes of metaplastic and/or regenerative origin.

Conclusions

Overall, a model of long-term cultivated rat PCLS which stays viable for 29 days and reactive for at least 13 days could be established. Before long-term cultivated PCLS can be used for in-depth study of chronic diseases and chronic toxicity, further investigations have to be made.
Appendix
Available only for authorised users
Literature
2.
go back to reference Global burden of 369 diseases and injuries in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet 2020, 396:1204–1222. Global burden of 369 diseases and injuries in 204 countries and territories, 1990–2019: a systematic analysis for the Global Burden of Disease Study 2019. Lancet 2020, 396:1204–1222.
34.
go back to reference Ayache S, Panelli MC, Byrne KM, Slezak S, Leitman SF, Marincola FM, Stroncek DF: Comparison of proteomic profiles of serum, plasma, and modified media supplements used for cell culture and expansion. J Transl Med 2006, 4:40. https://doi.org/10.1186/1479-5876-4-40 Ayache S, Panelli MC, Byrne KM, Slezak S, Leitman SF, Marincola FM, Stroncek DF: Comparison of proteomic profiles of serum, plasma, and modified media supplements used for cell culture and expansion. J Transl Med 2006, 4:40. https://​doi.​org/​10.​1186/​1479-5876-4-40
Metadata
Title
Functional changes in long-term incubated rat precision-cut lung slices
Authors
Sarah Marie Nußbaum
Julia Krabbe
Svenja Böll
Aaron Babendreyer
Christian Martin
Publication date
01-12-2022
Publisher
BioMed Central
Published in
Respiratory Research / Issue 1/2022
Electronic ISSN: 1465-993X
DOI
https://doi.org/10.1186/s12931-022-02169-5

Other articles of this Issue 1/2022

Respiratory Research 1/2022 Go to the issue
Live Webinar | 27-06-2024 | 18:00 (CEST)

Keynote webinar | Spotlight on medication adherence

Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine