TY - JOUR
T1 - Evaluation of VGF peptides as potential anti-obesity candidates in pre-clinical animal models
AU - Dalbøge, Louise S.
AU - Jacobsen, Julie M.
AU - Mehrotra, Suneet
AU - Mercer, Aaron J.
AU - Cox, Nick
AU - Liu, Fa
AU - Bennett, Camdin M.
AU - Said, Meerit
AU - Tang-Christensen, Mads
AU - Raun, Kirsten
AU - Hansen, Jakob L.
AU - Grove, Kevin L.
AU - Baquero, Arian F.
N1 - Publisher Copyright:
© 2020 The Authors
PY - 2021/2
Y1 - 2021/2
N2 - VGF is a peptide precursor expressed in neuroendocrine cells that is suggested to play a role in the regulation of energy homeostasis. VGF is proteolytically cleaved to yield multiple bioactive peptides. However, the specific actions of VGF-derived peptides on energy homeostasis remain unclear. The aim of the present work was to investigate the role of VGF-derived peptides in energy homeostasis and explore the pharmacological actions of VGF-derived peptides on body weight in preclinical animal models. VGF-derived peptides (NERP-1, NERP-2, PGH-NH2, PGH−OH, NERP-4, TLQP-21, TLQP-30, TLQP-62, HHPD-41, AQEE-30, and LQEQ-19) were synthesized and screened for their ability to affect neuronal activity in vitro on hypothalamic brain slices and modulate food intake and energy expenditure after acute central administration in vivo. In addition, the effects of NERP-1, NERP-2, PGH-NH2, TLQP-21, TLQP-62, and HHPD-41 on energy homeostasis were studied after chronic central infusion. NERP-1, PGH-NH2, HHPD-41, and TLQP-62 increased the functional activity of hypothalamic neuronal networks. However, none of the peptides altered energy homeostasis after either acute or chronic ICV administration. The present data do not support the potential use of the tested VGF-derived peptides as novel anti-obesity drug candidates.
AB - VGF is a peptide precursor expressed in neuroendocrine cells that is suggested to play a role in the regulation of energy homeostasis. VGF is proteolytically cleaved to yield multiple bioactive peptides. However, the specific actions of VGF-derived peptides on energy homeostasis remain unclear. The aim of the present work was to investigate the role of VGF-derived peptides in energy homeostasis and explore the pharmacological actions of VGF-derived peptides on body weight in preclinical animal models. VGF-derived peptides (NERP-1, NERP-2, PGH-NH2, PGH−OH, NERP-4, TLQP-21, TLQP-30, TLQP-62, HHPD-41, AQEE-30, and LQEQ-19) were synthesized and screened for their ability to affect neuronal activity in vitro on hypothalamic brain slices and modulate food intake and energy expenditure after acute central administration in vivo. In addition, the effects of NERP-1, NERP-2, PGH-NH2, TLQP-21, TLQP-62, and HHPD-41 on energy homeostasis were studied after chronic central infusion. NERP-1, PGH-NH2, HHPD-41, and TLQP-62 increased the functional activity of hypothalamic neuronal networks. However, none of the peptides altered energy homeostasis after either acute or chronic ICV administration. The present data do not support the potential use of the tested VGF-derived peptides as novel anti-obesity drug candidates.
KW - ICV
KW - Obesity
KW - TLQP-21
KW - VGF
UR - http://www.scopus.com/inward/record.url?scp=85097247228&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85097247228&partnerID=8YFLogxK
U2 - 10.1016/j.peptides.2020.170444
DO - 10.1016/j.peptides.2020.170444
M3 - Article
C2 - 33245952
AN - SCOPUS:85097247228
SN - 0196-9781
VL - 136
JO - Peptides
JF - Peptides
M1 - 170444
ER -