Neurosecretory Protein GL Promotes Normotopic Fat Accumulation in Male ICR Mice

Neurosecretory protein GL (NPGL) is a small secretory protein identified in the hypothalamus of birds and mammals. We recently reported that NPGL exerts obesogenic effects in obesity-prone C57BL6/J mice. However, whether NPGL elicits adiposity in different mouse strains is poorly understood. In this...

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Bibliographic Details
Published in:International journal of molecular sciences 2022-06, Vol.23 (12), p.6488
Main Authors: Narimatsu, Yuki, Matsuura, Daichi, Iwakoshi-Ukena, Eiko, Furumitsu, Megumi, Ukena, Kazuyoshi
Format: Article
Language:English
Subjects:
Adipose tissue
Adipose tissue (brown)
Bioaccumulation
Body fat
Coronaviruses
COVID-19
Cytomegalovirus
Endocrine system
Food
Glucose
Homeostasis
Hormones
Hypertrophy
Hypothalamus
ICR strain
Lipids
Lipolysis
Metabolic disorders
Metabolism
Nervous system
neuropeptide
neurosecretory protein GL
Obesity
Pituitary gland
Proteins
Thermogenesis
Transgenic mice
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Summary:Neurosecretory protein GL (NPGL) is a small secretory protein identified in the hypothalamus of birds and mammals. We recently reported that NPGL exerts obesogenic effects in obesity-prone C57BL6/J mice. However, whether NPGL elicits adiposity in different mouse strains is poorly understood. In this study, we generated transgenic mice overexpressing Npgl using the ICR strain (Npgl Tg mice) to elucidate the obesogenic effects of NPGL in different strains. Npgl Tg mice showed increased white adipose tissue (WAT) mass. Although the mass of brown adipose tissue (BAT) was slightly altered in Npgl Tg mice, hypertrophy of lipid droplets was also observed in BAT. In contrast, fat accumulation was not induced in the liver, with the upregulation of mRNAs related to hepatic lipolysis. These results support the hypothesis that NPGL causes obesity in several strains and species. This report highlights the pivotal role of NPGL in fat accumulation in adipose tissues and contributes to the elucidation of the biological mechanisms underlying obesity and metabolic diseases in heterogeneous populations.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms23126488