PMID- 35104244 OWN - NLM STAT- MEDLINE DCOM- 20220411 LR - 20240329 IS - 2379-3708 (Electronic) IS - 2379-3708 (Linking) VI - 7 IP - 5 DP - 2022 Mar 8 TI - Ferret models of alpha-1 antitrypsin deficiency develop lung and liver disease. LID - 10.1172/jci.insight.143004 [doi] LID - e143004 AB - Alpha-1 antitrypsin deficiency (AATD) is the most common genetic cause and risk factor for chronic obstructive pulmonary disease, but the field lacks a large-animal model that allows for longitudinal assessment of pulmonary function. We hypothesized that ferrets would model human AATD-related lung and hepatic disease. AAT-knockout (AAT-KO) and PiZZ (E342K, the most common mutation in humans) ferrets were generated and compared with matched controls using custom-designed flexiVent modules to perform pulmonary function tests, quantitative computed tomography (QCT), bronchoalveolar lavage (BAL) proteomics, and alveolar morphometry. Complete loss of AAT (AAT-KO) led to increased pulmonary compliance and expiratory airflow limitation, consistent with obstructive lung disease. QCT and morphometry confirmed emphysema and airspace enlargement, respectively. Pathway analysis of BAL proteomics data revealed inflammatory lung disease and impaired cellular migration. The PiZ mutation resulted in altered AAT protein folding in the liver, hepatic injury, and reduced plasma concentrations of AAT, and PiZZ ferrets developed obstructive lung disease. In summary, AAT-KO and PiZZ ferrets model the progressive obstructive pulmonary disease seen in AAT-deficient patients and may serve as a platform for preclinical testing of therapeutics including gene therapy. FAU - He, Nan AU - He N AD - Department of Anatomy and Cell Biology. FAU - Liu, Xiaoming AU - Liu X AD - Department of Anatomy and Cell Biology. FAU - Vegter, Amber R AU - Vegter AR AD - Department of Anatomy and Cell Biology. FAU - Evans, T Idil A AU - Evans TIA AD - Department of Anatomy and Cell Biology. FAU - Gray, Jaimie S AU - Gray JS AD - Department of Anatomy and Cell Biology. FAU - Guo, Junfeng AU - Guo J AD - Department of Radiology. FAU - Moll, Shashanna R AU - Moll SR AD - Department of Anatomy and Cell Biology. FAU - Guo, Lydia J AU - Guo LJ AD - Department of Anatomy and Cell Biology. FAU - Luo, Meihui AU - Luo M AD - Department of Anatomy and Cell Biology. FAU - Ma, Ningxia AU - Ma N AD - Department of Anatomy and Cell Biology. FAU - Sun, Xingshen AU - Sun X AD - Department of Anatomy and Cell Biology. FAU - Liang, Bo AU - Liang B AD - Department of Anatomy and Cell Biology. FAU - Yan, Ziying AU - Yan Z AD - Department of Anatomy and Cell Biology. FAU - Feng, Zehua AU - Feng Z AD - Department of Anatomy and Cell Biology. FAU - Qi, Lisi AU - Qi L AD - Department of Anatomy and Cell Biology. FAU - Joshi, Arnav S AU - Joshi AS AD - Department of Surgery. FAU - Shahin, Weam AU - Shahin W AD - Department of Anatomy and Cell Biology. FAU - Yi, Yaling AU - Yi Y AD - Department of Anatomy and Cell Biology. FAU - Gibson-Corley, Katherine N AU - Gibson-Corley KN AD - Department of Pathology, and. FAU - Hoffman, Eric A AU - Hoffman EA AD - Department of Radiology. FAU - Wang, Kai AU - Wang K AD - Department of Biostatistics, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. FAU - Mueller, Christian AU - Mueller C AD - Department of Pediatrics, University of Massachusetts Medical Center, Worcester, Massachusetts, USA. FAU - Engelhardt, John F AU - Engelhardt JF AD - Department of Anatomy and Cell Biology. AD - Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. FAU - Rosen, Bradley H AU - Rosen BH AD - Department of Anatomy and Cell Biology. AD - Department of Internal Medicine, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA. LA - eng GR - 75N92019C00010/HL/NHLBI NIH HHS/United States GR - T32 HL007638/HL/NHLBI NIH HHS/United States GR - P30 DK054759/DK/NIDDK NIH HHS/United States GR - R24 HL123482/HL/NHLBI NIH HHS/United States GR - KL2 TR002536/TR/NCATS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20220308 PL - United States TA - JCI Insight JT - JCI insight JID - 101676073 SB - IM MH - Animals MH - Ferrets MH - Humans MH - Lung/metabolism MH - *Pulmonary Disease, Chronic Obstructive/metabolism MH - *Pulmonary Emphysema MH - *alpha 1-Antitrypsin Deficiency/complications/genetics/therapy PMC - PMC8983124 OTO - NOTNLM OT - COPD OT - Genetic diseases OT - Proteases OT - Pulmonology EDAT- 2022/02/02 06:00 MHDA- 2022/04/12 06:00 PMCR- 2022/03/08 CRDT- 2022/02/01 17:10 PHST- 2020/08/07 00:00 [received] PHST- 2022/01/28 00:00 [accepted] PHST- 2022/02/02 06:00 [pubmed] PHST- 2022/04/12 06:00 [medline] PHST- 2022/02/01 17:10 [entrez] PHST- 2022/03/08 00:00 [pmc-release] AID - 143004 [pii] AID - 10.1172/jci.insight.143004 [doi] PST - epublish SO - JCI Insight. 2022 Mar 8;7(5):e143004. doi: 10.1172/jci.insight.143004.