Novel molecular discovery of promising amidine-based thiazole analogues as potent dual Matrix Metalloproteinase-2 and 9 inhibitors: Anticancer activity data with prominent cell cycle arrest and DNA fragmentation analysis effects
摘要:
Thiazole derivatives are known to possess various biological activities such as antiparasitic, antifungal, anti-microbial and antiproliferative activities. Matrix metalloproteinases (MMPs) are important protease target in-volved in tumor progression including angiogenesis, tissue invasion, and migration. Therefore, MMPs have also been reported as potential diagnostic and prognostic biomarkers in many types of cancer. Herein, new aryl thiazoles were synthesized and evaluated for their anticancer effects on a panel of cancer cell lines including the invasive MDA-MB-231 line. Some of these compounds showed IC50 values in the submicromolar range in anti -proliferative assays. In order to examine the relationship between their anticancer activity and MMPs targets, the compounds were evaluated for their inhibitory effects on MMP-2 and 9. That data obtained revealed that most of these compounds were potent dual MMP-2/9 inhibitors at nanomolar concentrations. Among these, 2-(1-(2-(2-((E)-4-iodobenzylidene)hydrazineyl)-4-methylthiazol-5-yl)ethylidene)hydrazine-1-carboximidamide (4a) was the most potent non-selective dual MMP-2/9 inhibitor with inhibitory concentrations of 56 and 38 nM re-spectively. When compound 4a was tested in an MDA-MB-231, HCT-116, MCF-7 model, it effectively inhibited tumor growth, strongly induced cancer cell apoptosis, inhibit cell migration, and suppressed cell cycle pro-gression leading to DNA fragmentation. Taken together, the results of our studies indicate that the newly dis-covered thiazole-based MMP-2/9 inhibitors have significant potential for anticancer treatment.
signals, two of which are due to two diastereomers. The EPR spectra of 3 and 4 in THF reveal the presence of octahedral species in solution. The crystal and molecularstructures of complexes 3a·OCMe2, 5a, and 5b have been obtained, revealing basically a tetragonal pyramid, and coordination of the sulfur function in the thiocarbonyl (3) or enethiolate mode (5). The relevance of the compounds to bioinorganic
In vitro antiproliferative activity of palladium(<scp>ii</scp>) thiosemicarbazone complexes and the corresponding functionalized chitosan coated magnetite nanoparticles
作者:Wilfredo Hernández、Abraham. J. Vaisberg、Mabel Tobar、Melisa Álvarez、Jorge Manzur、Yuri Echevarría、Evgenia Spodine
DOI:10.1039/c5nj02429c
日期:——
Magnetite functionalized nanoparticles with Pd(L3)2 and Pd(L4)2 show antiproliferative activity against DU-145 and HuTu80; Pd(L2)2 is found to be a promising pharmacological agent.
Dual anion colorimetric and fluorometric sensing of arsenite and cyanide ions
作者:Neetu Yadav、Ashok Kumar Singh
DOI:10.1039/c6ra19781g
日期:——
appended probe, 2-((2-hydroxynaphthalen-1-yl)methylene)hydrazine carbothioamide, was synthesized and found to recognize AsO2− and CN− ions with turn-on emission fluorescence over different anions in a DMF : H2O (HEPES buffer, pH = 7.2) (9 : 1, v/v solution) medium. The probe was characterized using different techniques including NMR, IR, CHNS, UV-visible and ESI mass spectroscopy. This probe shows colorimetric
Synthesis and antimicrobial properties of some new thiazolyl coumarin derivatives
作者:Afsheen Arshad、Hasnah Osman、Mark C. Bagley、Chan Kit Lam、Suriyati Mohamad、Anis Safirah Mohd Zahariluddin
DOI:10.1016/j.ejmech.2011.05.044
日期:2011.9
Two novel series of hydrazinyl thiazolyl coumarin derivatives have been synthesized and fully characterized by IR, 1H NMR, 13C NMR, elemental analysis and mass spectral data. The structures of some compounds were further confirmed by X-ray crystallography. All of these derivatives, 10a–d and 15a–h, were screened in vitro for antimicrobial activity against various bacteria species including Mycobacterium
已经合成了两个新颖的肼基噻唑基香豆素衍生物系列,并通过IR,1 H NMR,13 C NMR,元素分析和质谱数据进行了充分表征。X射线晶体学进一步证实了某些化合物的结构。在体外筛选了所有这些衍生物10a – d和15a – h对各种细菌(包括结核分枝杆菌和白色念珠菌)的抗菌活性。化合物10c,10d和15e 对所有测试的微生物菌株表现出非常好的活性。
Synthesis, antibacterial and antifungal activity of some new thiazolylhydrazone derivatives containing 3-substituted cyclobutane ring
A series of Schiff bases, combining 2,4-disubstituted thiazole and cyclobutane rings, and hydrazone moieties in the same molecule, was synthesized, characterized and evaluated for screening antibacterial and antifungal activities on microorganisms, respectively, on four bacteria and Candida tropicalis. The structures of original compounds were confirmed by analytical and spectroscopic (FT-IR, (1)H