For further development of successors of Agomelatine through modulation of its pharmacokinetic properties, we report herein the design, synthesis and pharmacological results of a new family of melatonin receptor ligands. Issued from the introduction of quinazoline and phthalazine scaffolds carrying an ethyl amide lateral chain and a methoxy group as bioisosteric ligands analogues of previously developed Agomelatine. The biological activity of the prepared analogues was compared with that of Agomelatine. Quinazoline and phthalazine rings proved to be a versatile scaffold for easy feasible MT and MT ligands. Potent agonists with sub-micromolar binding affinity were obtained. However, the presence of two nitrogen atoms resulted in compounds with lower affinity for both MT and MT, in comparison with the parent compound, balanced by the exhibition of good pharmacokinetic properties.
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http://dx.doi.org/10.1016/j.ejmech.2020.112078 | DOI Listing |
Chem Biodivers
November 2024
Pharmaceutical Medicinal Chemistry & Drug Design Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, 11884, Egypt.
New thalidomide analogs have been designed and synthesized by hybridizing the immunomodulatory gutarimide moiety with three antiproliferative nuclei: quinazolinedione, phthalazinedione, and quinoxalinone. The biological results revealed the strong impact of quinazoline derivatives 7 a and 28, and phthalazine based 20 a against HepG-2, MCF-7, PC3, and HCT-116 cell lines, compared to thalidomide. In particular, compound 20 a was the most promising as it had far better biological activity than thalidomide with regard to inhibition of TNF-α, IL-6, caspase 3, COX-I/II, and VEGFR-2, as well as cell cycle arrest, and apoptosis rate enhancement in MCF-7 cells, the most sensitive cell line to the current new molecules.
View Article and Find Full Text PDFJ Clin Oncol
December 2024
Gynecologic Oncology, Duke University Medical Center, Duke Cancer Institute, Durham, NC.
Purpose: We assessed the efficacy of cediranib, olaparib, and cediranib/olaparib compared with standard-of-care chemotherapy (SOC) in platinum-resistant or platinum-refractory epithelial ovarian cancer (PROC).
Patients And Methods: NRG-GY005 is an open-label, four-arm, phase II/III superiority trial enrolling patients with high-grade serous/endometrioid PROC and one to three previous therapies. Key exclusion criteria included previous receipt of poly(ADP-ribose) polymerase inhibitor or receipt of antiangiogenic therapy in the recurrent setting.
Clin Colorectal Cancer
September 2024
Department of Medicine, Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada. Electronic address:
Background: The use of immunotherapy in mismatch repair proficient colorectal cancer (pMMR-CRC) or pancreatic adenocarcinoma (PDAC) is associated with limited efficacy. DAPPER (NCT03851614) is a phase 2, basket study randomizing patients with pMMR CRC or PDAC to durvalumab with olaparib (durvalumab + olaparib) or durvalumab with cediranib (durvalumab + cediranib).
Methods: PDAC or pMMR-CRC patients were randomized to either durvalumab+olaparib (arm A), or durvalumab + cediranib (arm B).
J AOAC Int
November 2024
Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, PO Box 2457, Riyadh11451, Saudi Arabia.
Background: The formation of charge-transfer complexes (CTCs) of iodine with five chemotherapeutic drugs used for the treatment of different types of cancer has not been investigated. These drugs are olaparib, seliciclib, vandetanib, dasatinib, and tozasertib. Additionally, these drugs need an appropriate general spectrophotometric assay for their analysis in the dosage forms regardless of the differences in their chemical structures.
View Article and Find Full Text PDFMol Cancer Ther
January 2025
IMPACT Therapeutics Inc., Shanghai, China.
PARP1 is a critical enzyme involved in DNA damage repair. It belongs to a superfamily of proteins and catalyzes poly(ADP-ribosyl)ation (PARylation). PARP1 inhibitors are effective to treat tumors that have homologous recombination deficiency such as those with BRCA1/2 mutations.
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