期刊
AMERICAN JOURNAL OF PATHOLOGY
卷 190, 期 5, 页码 977-993出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ajpath.2020.01.009
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资金
- Cystic Fibrosis South Australia
- Fay Fuller Foundation
- National Health and Medical Research Council [GNT1160011]
- Cystic Fibrosis Foundation [PARSON18GO]
- Australian Government through the National Collaborative Research Infrastructure Strategy Program
Animal models of cystic fibrosis (CF) are essential for investigating disease mechanisms and trialing potential therapeutics. This study generated two CF rat models using clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeats-associated protein 9 gene editing. One rat model carries the common human Phe508del (Delta F508) CF transmembrane conductance regulator (CFTR) mutation, whereas the second is a CFTR knockout model. Phenotype was characterized using a range of functional and histologic assessments, including nasal potential difference to measure electrophysiological function in the upper airways, RNAscope in situ hybridization and quantitative PCR to assess CFTR mRNA expression in the lungs, immunohistochemistry to localize CFTR protein in the airways, and histopathologic assessments in a range of tissues. Both rat models revealed a range of CF manifestations, including reduced survival, intestinal obstruction, bioelectric defects in the nasal epithelium, histopathologic changes in the trachea, large intestine, and pancreas, and abnormalities in the development of the male reproductive tract. The CF rat models presented herein will prove useful for longitudinal assessments of pathophysiology and therapeutics.
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