Please use this identifier to cite or link to this item: https://repository.cihe.edu.hk/jspui/handle/cihe/251
Title: Anti-emetic action of the brain-penetrating new ghrelin agonist, HM01, alone and in combination with the 5-HT3 antagonist, palonosetron and with the NK1 antagonist, netupitant, against cisplatin- and motion-induced emesis in Suncus murinus (house musk shrew)
Author(s): Chan, Stella Sze Wa 
Lu, Zengbing 
Author(s): Rudd, J. A.
Ngan, M. P.
Tu, L.
Giuliano, C.
Lovati, E.
Pietra, C.
Issue Date: 2018
Journal: Frontiers in Pharmacology 
Volume: 9
Abstract: 
Ghrelin has well-known activity to stimulate appetite and weight gain. Evidence suggests that ghrelin may also have effects in reducing chemotherapy-induced emesis via growth hormone secretagogue receptors (GHS R1A) in the brain. However, it is not known whether the stimulation of GHS-R1A has broad inhibitory anti emetic effects. In the present studies, we used Suncus murinus to investigate the potential of the new and novel orally bioavailable brain-penetrating GHS-R1A mimetic, HM01 (1-[(1S)-1-(2,3-dichloro-4 methoxyphenyl)ethyl]-3-methyl-3-[(4R)-1-Methyl-3,3-dimethyl-4-piperidyl]urea), to reduce emesis induced by a variety of emetic challenges. HM01 (1 to 30 mg/kg, p.o.) antagonized emesis induced by cisplatin (30 mg/kg, i.p.) and by motion (4 cm horizontal displacement, 1 Hz) but was ineffective against emesis induced by nicotine (5 mg/kg, s.c.) and copper sulfate (120 mg/kg by intragastric gavage). In other experiments, HM01 (3 mg/kg, p.o.) enhanced the anti-emetic control of a regimen of palonosetron (0.01 mg/kg, p.o.) alone and palonosetron (0.01 mg/kg p.o.) plus netupitant (1 mg/kg, p.o.). HM01 (10 mg/kg, p.o.) also had positive effects in increasing feeding and drinking in nicotine-treated animals, and it shortened the latency to drink in animals treated with cisplatin. These data indicate that brain-penetrating GHS-R1A agonists may have use alone and/or in combination with standard anti-emetic regimens for the treatment of chemotherapy-induced nausea and vomiting and motion sickness.

Highlights
- The novel orally bioavailable brain-penetrating GHS-R1A agonist, HM01 (1-[(1S)-1-(2,3-dichloro-4-methoxyphenyl)ethyl]-3-methyl-3-[(4R)-1-Methyl-3,3-dimethyl-4-piperidyl]urea), antagonizes motion- and cisplatin-induced emesis.
- HM01 did not reduce emesis induced by nicotine or by intragastric copper sulfate.
- HM01 has positive effects on food consumption after treatment with nicotine.
- HM01 has synergistic effects against cisplatin when combined with palonosetron and palonosetron/netupitant regimens.
- It is suggested that GHS-R1A agonists may be protective against chemotherapy-induced nausea and vomiting in combination with traditional anti-emetics and against motion-induced emesis.
URI: https://repository.cihe.edu.hk/jspui/handle/cihe/251
DOI: 10.3389/fphar.2018.00869
CIHE Affiliated Publication: Yes
Appears in Collections:HS Publication

Files in This Item:
File Description SizeFormat
View Online89 BHTMLView/Open
SFX Query Show full item record

Google ScholarTM

Check

Altmetric

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.