Europe PMC

This website requires cookies, and the limited processing of your personal data in order to function. By using the site you are agreeing to this as outlined in our privacy notice and cookie policy.

Abstract 


Dunnigan's Familial Partial Lipodystrophy (FPLD) is an autosomal dominant disease characterized by regional fat loss and insulin resistance. FPLD is caused by mutations in the LMNA gene, which encodes intermediate filaments of the nuclear lamina. Different LMNA mutations cause Emery-Dreifuss muscular dystrophy and/or a dilated cardiomyopathy. It is not known how LMNA mutations cause any of the disease phenotypes. Here we measure physical and metabolic characteristics of Lmna-/- and +/- mice to determine their usefulness as models for FPLD. Lmna-/- mice, which die prematurely of muscular dystrophy, have little fat, but do not show the insulin resistance characteristic of FPLD. Lmna+/- mice, despite treatment with a high fat diet, do not have decreased fat stores or metabolic features of FPLD. We also show, in mice, that Lmna transcripts are expressed at high levels in muscle and adipose tissue, but do not vary by body region or sex. In conclusion, Lmna+/- and -/- mice do not mimic Dunnigan's FPLD, and differential expression of lamins A and C does not appear to contribute to sex- or tissue-specific LMNA phenotypes.

References 


Articles referenced by this article (27)


Show 10 more references (10 of 27)

Citations & impact 


Impact metrics

Jump to Citations
Jump to Data

Citations of article over time

Article citations


Go to all (42) article citations

Data