Pulmonary function and pathology in hydroxypropyl-beta-cyclodextin-treated and untreated Npc1⁻/⁻ mice.

Document Type

Article

Abstract

Lung dysfunction is an important part of the pathology of the neurodegenerative disorder, Niemann-Pick C1 (NPC1). We have studied the pulmonary disease in the Npc1(NIH/NIH) mouse model. On histology, we find large numbers of alveolar foamy macrophages but no alveolar proteinosis. Lung weight as percent of body weight was markedly increased; using the flexiVent small animal ventilator (SCIREQ, Inc.), we find inspiratory capacity, elastance and hysterisivity to be increased while resistance was not changed. Cholesterol measurements show a doubling of lung cholesterol levels. Collagen is also increased. Treatment of Npc1(-/-) mice with hydroxypropyl-β-cyclodextrin (HPBCD), despite efficacious effects in brain and liver, results in little difference from age-matched controls (using a CNS-expressed transgene to extend the life expectancy of the Npc1(-/-) mice) for these variables.

Medical Subject Headings

2-Hydroxypropyl-beta-cyclodextrin; Animals; Cholesterol; Disease Models, Animal; Lung; Mice; Mice, Inbred BALB C; Mice, Knockout; Niemann-Pick Disease, Type C; Respiratory Function Tests; beta-Cyclodextrins

Publication Date

6-1-2011

Publication Title

Molecular genetics and metabolism

E-ISSN

1096-7206

Volume

103

Issue

2

First Page

142

Last Page

147

PubMed ID

21459030

Digital Object Identifier (DOI)

10.1016/j.ymgme.2011.03.001

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