Cholecystokinin-1 receptor antagonists:5-hydroxy-5-aryl-pyrrol-2-ones as anticancer agents

Abstract

A new class of 5-arylated 5-hydroxypyrrolones was derived from mucochloric acid in 2 synthetic steps and the chemical structure was confirmed additionally by X-ray analysis. Using a radiolabelled binding assay, potent CCK1 selective ligands were identified (CCK1: 12 nM) and the antagonism was confirmed by using isolated tissue preparations. A series of isobutyl derivatives displayed unsurmountable CCK antagonistic properties and in vitro excellent inhibition of proliferation was obtained in cholecystokinin related cancer cell lines in the nanomolar range. Finally, using xenograft studies in nude mice, two selected pyrrolone derivatives, X = H and X = F a fluorinated analogue (PNB-028), showed a strong inhibition of tumour growth in a chemo-resistant colon cancer-(MAC 16) and a human pancreatic cell line (MIAPACA) at 50 mg kg-1 by oral administration.

Publication DOI: https://doi.org/10.1039/c6md00052e
Divisions: College of Health & Life Sciences > Aston Pharmacy School
College of Health & Life Sciences
College of Health & Life Sciences > School of Biosciences > Cell & Tissue Biomedical Research
College of Health & Life Sciences > School of Biosciences
Uncontrolled Keywords: Biochemistry,Pharmaceutical Science
Full Text Link: http://pubs.rsc ... 2E#!divAbstract
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2016-06-01
Published Online Date: 2016-04-01
Accepted Date: 2016-03-20
Submitted Date: 2016-01-26
Authors: Lattmann, E.
Russell, S.T. (ORCID Profile 0000-0002-5491-900X)
Schwalbe, C.H.
Shortt, A.
Balaram, P.N.
Theochari, E.
Alharbi, M.
Narayanan, R.
Lattmann, P.

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