Sulfated Glucan from the Green Seaweed <em>Caulerpa sertularioides</em> Inhibits Adipogenesis through Suppression of Adipogenic and Lipogenic Key Factors
Gildacio Pereira Chaves Filho,
Lucas Alighieri Neves Costa Batista,
Silvia Regina Batistuzzo de Medeiros,
Hugo Alexandre Oliveira Rocha,
Susana Margarida Gomes Moreira
Affiliations
Gildacio Pereira Chaves Filho
Laboratory of Molecular and Genomic Biology, Department of Biology and Genetics, Center of Biosciences, Federal University of Rio Grande do Norte, Natal 59072-900, RN, Brazil
Lucas Alighieri Neves Costa Batista
Laboratory of Biotechnology of Natural Polymers, Department of Biochemistry, Center of Biosciences, Federal University of Rio Grande do Norte, Natal 59072-900, RN, Brazil
Silvia Regina Batistuzzo de Medeiros
Laboratory of Molecular and Genomic Biology, Department of Biology and Genetics, Center of Biosciences, Federal University of Rio Grande do Norte, Natal 59072-900, RN, Brazil
Hugo Alexandre Oliveira Rocha
The Doctoral Program in Biotechnology—Northeast Biotechnology Network (RENORBIO), Center of Biosciences, Federal University of Rio Grande do Norte, Natal 59072-900, RN, Brazil
Susana Margarida Gomes Moreira
Laboratory of Molecular and Genomic Biology, Department of Biology and Genetics, Center of Biosciences, Federal University of Rio Grande do Norte, Natal 59072-900, RN, Brazil
Sulfated polysaccharides (SPS) from seaweeds have great biochemical and biotechnological potential. This study aimed to investigate the effect of SPS isolated from the seaweed Caulerpa sertularioides on adipogenic differentiation as a possible alternative treatment for obesity. The SPS-rich extract from the seaweed C. sertularioides was fractioned into three SPS-rich fractions (F0.5; F0.9; and F1.8) chemically characterized. Among these four samples, only F0.9 showed a significant inhibitory effect on adipogenesis of 3T3-L1 preadipocytes. Ten SPS-rich fractions were isolated from F0.9 through ion-exchange chromatography. However, only the fraction (CS0.2) containing a sulfated glucan was able to inhibit adipogenesis. CS0.2 reduces lipid accumulation and inhibits the expression of key adipogenic (PPARγ, C/EBPβ, and C/EBPα) and lipogenic markers (SREBP-1c, Fabp4, and CD36). The data points to the potential of sulfated glucan from C. sertularioides for the development of functional approaches in obesity management.
