GPR160 is not a receptor of anorexigenic cocaine- and amphetamine-regulated transcript peptide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F23%3A00571308" target="_blank" >RIV/61388963:_____/23:00571308 - isvavai.cz</a>

Alternative codes found

RIV/67985823:_____/23:00571392

Result on the web

<a href="https://doi.org/10.1016/j.ejphar.2023.175713" target="_blank" >https://doi.org/10.1016/j.ejphar.2023.175713</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ejphar.2023.175713" target="_blank" >10.1016/j.ejphar.2023.175713</a>

Result language

angličtina

Original language name

GPR160 is not a receptor of anorexigenic cocaine- and amphetamine-regulated transcript peptide

Original language description

Cocaine- and amphetamine-regulated transcript peptide (CARTp) is an anorexigenic neuropeptide whose receptor is undisclosed. Previously, we reported the specific binding of CART(61–102) to pheochromocytoma PC12 cells, where CART(61–102) affinity and the number of binding sites per cell corresponded to ligand-receptor binding. Recently, Yosten et al. designated orphan GPR160 as the CARTp receptor, because the GPR160 antibody abolished neuropathic pain and anorexigenic effects induced by CART(55–102) and exogenous CART(55–102) coimmunoprecipitated with GPR160 in KATOIII cells. As no direct evidence that CARTp is a ligand for GPR160 has been described, we decided to verify this hypothesis by testing CARTp affinity to the GPR160 receptor. We investigated the GPR160 expression in PC12 cells since it is cell line known to specifically bind CARTp. Moreover, we examined the specific CARTp binding in THP1 cells, with high endogenous GPR160 expression and GPR160-transfected cell lines U2OS and U-251 MG. In PC12 cells, the GPR160 antibody did not compete for specific binding with 125I-CART(61–102) or with 125I-CART(55–102), and GPR160 mRNA expression and GPR160 immunoreactivity were not detected. Moreover, THP1 cells did not show any 125I-CART(61–102) or 125I-CART(55–102) specific binding despite GPR160 detection by fluorescent immunocytochemistry (ICC). Finally, no 125I-CART(61–102) or 125I-CART(55–102) specific binding in the GPR160-transfected cell lines U2OS and U-251 MG, selected due to their negligible endogenous expression of GPR160, was detected, despite the detection of GPR160 by fluorescent ICC. Our binding studies clearly demonstrated that GPR160 cannot be a receptor for CARTp. Further studies are needed to identify true CARTp receptors.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30104 - Pharmacology and pharmacy

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

European Journal of Pharmacology

ISSN

0014-2999

e-ISSN

1879-0712

Volume of the periodical

949

Issue of the periodical within the volume

June

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

175713

UT code for WoS article

000986020800001

EID of the result in the Scopus database

2-s2.0-85152701183