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Alessandra Barbanente Rosa Maria Iacobazzi Amalia Azzariti James D. Hoeschele Nunzio Denora Paride Papadia Concetta Pacifico Giovanni Natile Nicola Margiotta 《Molecules (Basel, Switzerland)》2021,26(11)
Two new Pt(II)-pyrophosphato complexes containing the carrier ligands cis-1,3-diaminocyclohexane (cis-1,3-DACH) and trans-1,2-diamine-4-cyclohexene (1,2-DACHEX), variants of the 1R,2R-diaminocyclohexane ligand present in the clinically used Pt-drug oxaliplatin, have been synthesized with the aim of developing new potential antitumor drugs with high bone tropism. The complexes are more stable at physiological pH than in acid conditions, with Na2[Pt(pyrophosphato)(cis-1,3-DACH)] (1) slightly more stable than [Pt(dihydrogenpyrophosphato)(1,2-DACHEX)] (2). The greater reactivity at acidic pH ensures a greater efficacy at the tumor site. Preliminary NMR studies indicate that 1 and 2 react slowly with 5’-GMP (used as a model of nucleic acids), releasing the pyrophosphate ligand and affording the bis 5’-GMP adduct. In vitro cytotoxicity assays performed against a panel of four human cancer cell lines have shown that both compounds are more active than oxaliplatin. Flow cytometry studies on HCT116 cells showed that the pyrophosphato compounds with the non-classical 1,3- and 1,4-diaminocyclohexane ligands (1 and 4) are the most capable to induce cells’ death by apoptosis and necrosis. 相似文献
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Iacobazzi Fabrizio Milanese Marco Colangelo Gianpiero de Risi Arturo 《Journal of Thermal Analysis and Calorimetry》2019,135(1):371-377
Journal of Thermal Analysis and Calorimetry - In the present work, an investigation on the relationship between clustering phenomenon and thermal conductivity of nanofluids is presented.... 相似文献
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Giulia Siciliano Dr. Michela Corricelli Dr. Rosa Maria Iacobazzi Prof. Fabio Canepa Dr. Daniela Comegna Prof. Elisabetta Fanizza Dr. Annarita Del Gatto Dr. Michele Saviano Prof. Valentino Laquintana Dr. Roberto Comparelli Dr. Giuseppe Mascolo Dr. Sapia Murgolo Dr. Marinella Striccoli Prof. Angela Agostiano Prof. Nunzio Denora Dr. Laura Zaccaro Prof. M. Lucia Curri Dr. Nicoletta Depalo 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(48):11048-11059
Efforts are made to perform an early and accurate detection of hepatocellular carcinoma (HCC) by simultaneous exploiting multiple clinically non-invasive imaging modalities. Original nanostructures derived from the combination of different inorganic domains can be used as efficient contrast agents in multimodal imaging. Superparamagnetic iron oxide nanoparticles (SPIONs) and Au nanoparticles (NPs) possess well-established contrasting features in magnetic resonance imaging (MRI) and X-ray computed tomography (CT), respectively. HCC can be targeted by using specific carbohydrates able to recognize asialoglycoprotein receptor 1 (ASGPR1) overexpressed in hepatocytes. Here, two different thiocarbohydrate ligands were purposely designed and alternatively conjugated to the surface of Au-speckled silica-coated SPIONs NPs, to achieve two original nanostructures that could be potentially used for dual mode targeted imaging of HCC. The results indicated that the two thiocarbohydrate decorated nanostructures possess convenient plasmonic/superparamagnetic properties, well-controlled size and morphology and good selectivity for targeting ASGPR1 receptor. 相似文献
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