PMID- 34767811 OWN - NLM STAT- MEDLINE DCOM- 20220302 LR - 20220308 IS - 1525-2191 (Electronic) IS - 0002-9440 (Print) IS - 0002-9440 (Linking) VI - 192 IP - 2 DP - 2022 Feb TI - The Challenge of Long-Term Cultivation of Human Precision-Cut Lung Slices. PG - 239-253 LID - S0002-9440(21)00481-8 [pii] LID - 10.1016/j.ajpath.2021.10.020 [doi] AB - Human precision-cut lung slices (PCLS) have proven to be an invaluable tool for numerous toxicologic, pharmacologic, and immunologic studies. Although a cultivation period of <1 week is sufficient for most studies, modeling of complex disease mechanisms and investigating effects of long-term exposure to certain substances require cultivation periods that are much longer. So far, data regarding tissue integrity of long-term cultivated PCLS are incomplete. More than 1500 human PCLS from 16 different donors were cultivated under standardized, serum-free conditions for up to 28 days and the viability, tissue integrity, and the transcriptome was assessed in great detail. Even though viability of PCLS was well preserved during long-term cultivation, a continuous loss of cells was observed. Although the bronchial epithelium was well preserved throughout cultivation, the alveolar integrity was preserved for about 2 weeks, and the vasculatory system experienced significant loss of integrity within the first week. Furthermore, ciliary beat in the small airways gradually decreased after 1 week. Interestingly, keratinizing squamous metaplasia of the alveolar epithelium with significantly increasing manifestation were found over time. Transcriptome analysis revealed a significantly increased immune response and significantly decreased metabolic activity within the first 24 hours after PCLS generation. Overall, this study provides a comprehensive overview of histomorphologic and pathologic changes during long-term cultivation of PCLS. CI - Copyright (c) 2022 American Society for Investigative Pathology. Published by Elsevier Inc. All rights reserved. FAU - Preuss, Eike B AU - Preuss EB AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. Electronic address: preuss.eike@mh-hannover.de. FAU - Schubert, Stephanie AU - Schubert S AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Werlein, Christopher AU - Werlein C AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Stark, Helge AU - Stark H AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Braubach, Peter AU - Braubach P AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Hofer, Anne AU - Hofer A AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Plucinski, Edith K J AU - Plucinski EKJ AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Shah, Harshit R AU - Shah HR AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Geffers, Robert AU - Geffers R AD - Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany. FAU - Sewald, Katherina AU - Sewald K AD - Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany. FAU - Braun, Armin AU - Braun A AD - Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany. FAU - Jonigk, Danny D AU - Jonigk DD AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. FAU - Kuhnel, Mark P AU - Kuhnel MP AD - Institute of Pathology, Lung Research Group, Hannover Medical School, Hannover, Germany. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20211110 PL - United States TA - Am J Pathol JT - The American journal of pathology JID - 0370502 SB - IM MH - Adult MH - Aged MH - Female MH - Humans MH - Lung/*metabolism/pathology MH - Male MH - Middle Aged MH - Organ Culture Techniques MH - Time Factors PMC - PMC8891143 EDAT- 2021/11/13 06:00 MHDA- 2022/03/03 06:00 PMCR- 2022/02/01 CRDT- 2021/11/12 20:13 PHST- 2021/08/19 00:00 [received] PHST- 2021/10/10 00:00 [revised] PHST- 2021/10/19 00:00 [accepted] PHST- 2021/11/13 06:00 [pubmed] PHST- 2022/03/03 06:00 [medline] PHST- 2021/11/12 20:13 [entrez] PHST- 2022/02/01 00:00 [pmc-release] AID - S0002-9440(21)00481-8 [pii] AID - 10.1016/j.ajpath.2021.10.020 [doi] PST - ppublish SO - Am J Pathol. 2022 Feb;192(2):239-253. doi: 10.1016/j.ajpath.2021.10.020. Epub 2021 Nov 10.