title: Synthesis and structure-activity relationships of new antiproliferative and proapoptotic retinoid-related biphenyl-4-yl-acrylic acids.
abstract: Atypical retinoids, or retinoid-related molecules (RRMs), represent a class of proapoptotic agents with a promising potential in the treatment of neoplastic diseases. In the present work, the synthesis and structure-activity relationship of a series of 3'-adamantan-1-yl-biphenyl-4-yl-acrylic acids substituted in ring A were studied. The synthesized compounds were evaluated for their antiproliferative activity in a human promyelocitic leukemia cell line (NB4), and in an ovarian carcinoma cell system including IGROV-1, carrying a functional wild-type p53, and a cisplatin-resistant subline, IGROV-1/Pt-1. The presence of at least one oxygenated substituent in positions 4' or 5' appears determinant for the antiproliferative activity. With two substituents of this kind the activity increases, particularly in the case of alkylenedioxy compounds. The activation of DNA damage response as indicated by phosphorylation of H2AX histone, RPA-2 protein, and p53 at serine 15 by the most apoptotic compounds provides additional support to the hypothesis that the genotoxic stress is a critical event mediating apoptosis induction by compounds of this group.
authors.affiliation: Dipartimento di Scienze Molecolari Agroalimentari, Università di Milano, Via Celoria 2, 20133 Milano, Italy.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Cincinelli
authors.forename: Sabrina
authors.initials: S
authors.lastname: Dallavalle
authors.forename: Raffaella
authors.initials: R
authors.lastname: Nannei
authors.forename: Lucio
authors.initials: L
authors.lastname: Merlini
authors.forename: Sergio
authors.initials: S
authors.lastname: Penco
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Giannini
authors.forename: Claudio
authors.initials: C
authors.lastname: Pisano
authors.forename: Loredana
authors.initials: L
authors.lastname: Vesci
authors.forename: Fabiana Fosca
authors.initials: FF
authors.lastname: Ferrara
authors.forename: Valentina
authors.initials: V
authors.lastname: Zuco
authors.forename: Chiara
authors.initials: C
authors.lastname: Zanchi
authors.forename: Franco
authors.initials: F
authors.lastname: Zunino
mesh_terms: D000179:Acrylates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D045744:Cell Line, Tumor; D049109:Cell Proliferation / Q000187:drug effects; D004249:DNA Damage; D004789:Enzyme Activation / Q000187:drug effects; D006801:Humans; D048031:JNK Mitogen-Activated Protein Kinases / Q000378:metabolism; D015394:Molecular Structure; D010636:Phenols / Q000737:chemistry*; D012176:Retinoids / Q000737:chemistry*; D013329:Structure-Activity Relationship; D048051:p38 Mitogen-Activated Protein Kinases / Q000378:metabolism
chemical_list: D000179:Acrylates; D000970:Antineoplastic Agents; D010636:Phenols; D012176:Retinoids; D048031:JNK Mitogen-Activated Protein Kinases; D048051:p38 Mitogen-Activated Protein Kinases; C036658:acrylic acid