The present application relates to the technical field of central
obesity related research and treatment, by constructing a central
obesity mouse model, it is found that the up-regulation of brain-derived neurotrophic factor (BDNF) expression in
adipose tissue is closely related to central
obesity resistance. A BDNF fusion polypeptide composed of TAT
cell-penetrating
peptide, flexible
linker and BDNF mature
peptide is designed and prepared, the fusion polypeptide has strong
cell viability promoting effect at the
cellular level, can effectively activate the BDNF signaling pathway and has better stability than natural BDNF
protein; an anti-TrkB
monoclonal antibody with high affinity and
high titer is also prepared.
In vivo experiments show that the BDNF fusion polypeptide and its combination with the anti-TrkB
monoclonal antibody can effectively inhibit the
weight gain of central obesity mice, improve
glucose metabolism disorder, increase serum BDNF level and activate the TrkB signaling pathway, and the combination has better synergistic
therapeutic effect, which provides a new direction and experimental basis for the treatment of central obesity.