Home
Resources
Publications
Neuromedin B Receptor Disruption Impairs Adipogenesis in Mice and 3T3-L1 Cells

Neuromedin B Receptor Disruption Impairs Adipogenesis in Mice and 3T3-L1 Cells

Gabriela Silva Monteiro de Paula, Marianna Wilieman, Karina Ribeiro Silva, Leandra Santos Baptista, Sihem Boudina, Luana Lopes de Souza, Thais Bento-Bernardes, Karina Dutra Asensi, Regina Coeli Dos Santos Goldenberg, etc.

J Mol Endocrinol. 2019 Jul;63(1):93-102.

PMID: 31067509

Abstract:

Neuromedin B, a bombesin-like peptide, and its receptor, are expressed in white adipose tissue with undefined roles. Female mice with disruption of neuromedin B receptor (NB-R) exhibited partial resistance to diet-induced obesity leading to our hypothesis that NB-R is involved in adipogenesis. Here, we showed that adipose stem/stromal cells (ASC) from perigonadal fat of female NB-R-knockout mice, exposed to a differentiation protocol in vitro, accumulated less lipid (45%) than wild type, suggesting reduced capacity to differentiate under adipogenic input. To further explore mechanisms, preadipocytes 3T3-L1 cells were incubated in the presence of NB-R antagonist (PD168368) during the first 3 days in culture. Cells were analyzed in the end of the treatment (Day 3) and later when fully differentiated (Day 21). NB-R antagonist induced lower number of cells at day 3 and 21 (33-39%), reduced cell proliferation at day 3 (-53%) and reduced lipid accumulation at day 21 (-86%). The mRNA expressions of several adipocyte differentiation markers were importantly reduced at both days: Cebpb and Pparg and Fabp4, Plin-1 and Adipoq, and additionally Lep mRNA at day 21. The antagonist had no effect when incubated with mature 3T3-L1 adipocytes. Therefore, genetically disruption of NB-R in mice ASC or pharmacological antagonism of NB-R in 3T3-L1 cells impairs adipogenesis. The mechanisms suggested by results in 3T3-L1 cells involve reduction of cell proliferation and of early gene expressions, leading to decreased number of mature adipocytes. We speculate that NB-R antagonism may be useful to limit the increase in adiposity due to pre-adipocyte differentiation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP87096842	Neuromedin B		87096-84-2	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: