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Valque H, Gouyer V, Duez C, Leboeuf C, Marquillies P, Le Bert M, Plet S, Ryffel B, Janin A, Gottrand F, Desseyn JL. Muc5b-deficient mice develop early histological lung abnormalities. Biol Open 2019; 8:8/11/bio046359. [PMID: 31699684 PMCID: PMC6899002 DOI: 10.1242/bio.046359] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Gel-forming mucins are the main organic component responsible for physical properties of the mucus hydrogels. While numerous biological functions of these mucins are well documented, specific physiological functions of each mucin are largely unknown. To investigate in vivo functions of the gel-forming mucin Muc5b, which is one of the major secreted airway mucins, along with Muc5ac, we generated mice in which Muc5b was disrupted and maintained in the absence of environmental stress. Adult Muc5b-deficient mice displayed bronchial hyperplasia and metaplasia, interstitial thickening, alveolar collapse, immune cell infiltrates, fragmented and disorganized elastin fibers and collagen deposits that were, for approximately one-fifth of the mice, associated with altered pulmonary function leading to respiratory failure. These lung abnormalities start early in life, as demonstrated in one-quarter of 2-day-old Muc5b-deficient pups. Thus, the mouse mucin Muc5b is essential for maintaining normal lung function.
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Affiliation(s)
- Hélène Valque
- LIRIC UMR 995; Univ. Lille; Inserm; CHU Lille, F-59045 Lille, France
| | - Valérie Gouyer
- LIRIC UMR 995; Univ. Lille; Inserm; CHU Lille, F-59045 Lille, France
| | - Catherine Duez
- CIIL Inserm U1019; CNRS UMR 8204; Institut Pasteur de Lille; Univ. Lille, F-59019 Lille, France
| | - Christophe Leboeuf
- Inserm UMR_S 1165; Université Paris- Diderot, Institut Universitaire d'Hématologie, AP-HP-Hôpital Saint Louis, F-75010 Paris, France
| | - Philippe Marquillies
- CIIL Inserm U1019; CNRS UMR 8204; Institut Pasteur de Lille; Univ. Lille, F-59019 Lille, France
| | - Marc Le Bert
- CNRS UMR 7355, University of Orleans, Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), F-45071 Orleans, France
| | - Ségolène Plet
- LIRIC UMR 995; Univ. Lille; Inserm; CHU Lille, F-59045 Lille, France
| | - Bernhard Ryffel
- CNRS UMR 7355, University of Orleans, Laboratory of Experimental and Molecular Immunology and Neurogenetics (INEM), F-45071 Orleans, France.,IDM, University of Cape Town, South Africa
| | - Anne Janin
- Inserm UMR_S 1165; Université Paris- Diderot, Institut Universitaire d'Hématologie, AP-HP-Hôpital Saint Louis, F-75010 Paris, France
| | - Frédéric Gottrand
- LIRIC UMR 995; Univ. Lille; Inserm; CHU Lille, F-59045 Lille, France
| | - Jean-Luc Desseyn
- LIRIC UMR 995; Univ. Lille; Inserm; CHU Lille, F-59045 Lille, France
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Abstract
Animal models that are biologically and clinically relevant are essential for conducting research to investigate the pathophysiologic progression of disease and to develop diagnostic or therapeutic strategies. Several rodent models that vary in methods of induction allow appropriate in vivo evaluation for ovarian cancer. The types of rodent models discussed include chemically (nonhormonal and hormonal) induced, genetic (knockout and transgenic), xenograft, and syngeneic. A summary of the available rodent models is provided with a discussion of the advantages and disadvantages of each. Optimization and application of these rodent models to future research may benefit the detection and treatment of ovarian cancer.
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Affiliation(s)
- K D Sloan Stakleff
- Kenneth Calhoun Research Laboratory, Akron General Medical Center, Akron, Ohio USA.
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Szelestei T, Bähring S, Kovács T, Vas T, Salamon C, Busjahn A, Luft FC, Nagy J. Association of a uteroglobin polymorphism with rate of progression in patients with IgA nephropathy. Am J Kidney Dis 2000; 36:468-73. [PMID: 10977777 DOI: 10.1053/ajkd.2000.9786] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Uteroglobin gene-disrupted mice develop a nephritis very similar to immunoglobulin A (IgA) nephropathy. Megsin codes for a protein overexpressed in mesangium in patients with IgA nephropathy. Both are candidate genes that might have variants associated with an accelerated progression in patients with IgA nephropathy. We performed an association study of patients with IgA nephropathy and matching control subjects to test whether the G38A polymorphism in the uteroglobin gene, the C2093T polymorphism in the megsin gene, or the angiotensin-converting enzyme (ACE) insertion/deletion polymorphism is associated with IgA nephropathy or rate of disease progression in patients with IgA nephropathy. Of 110 patients with IgA nephropathy, 87 patients were followed up for at least 3 years for the progression study. We also studied 104 healthy volunteers. The uteroglobin, megsin, and ACE polymorphisms were not distributed differently in the 110 patients with IgA nephropathy compared with healthy controls; Hardy-Weinberg equilibrium criteria were fulfilled. The GG genotype of the G38A uteroglobin polymorphism was more common in patients with progression (odds ratio [OR], 3.5; P< 0.006) than the AG+AA genotypes. The G allele was also more common (OR, 2.6; P< 0.009) in patients with versus without progression. The 1/serum creatinine over time plot (in deciliters per milligram per day) was sevenfold steeper in GG patients than the other two genotypes (P = 0.08). No significant associations with disease progression were found for the other gene polymorphisms, and a multivariate analysis showed no interactions. We suggest the hypothesis that the uteroglobin gene contains variant(s) with a bearing on progression rate in patients with IgA nephropathy.
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Affiliation(s)
- T Szelestei
- Department of Internal Medicine-Nephrology, University of Pécs, Hungary
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