Article
Engineering, Biomedical
Maria Sancho-Albero, Giorgio Facchetti, Nicolo Panini, Marina Meroni, Ezia Bello, Isabella Rimoldi, Massimo Zucchetti, Roberta Frapolli, Luisa De Cola
Summary: Platinum-based chemotherapy is the standard first-line treatment for various types of cancer, including malignant pleural mesothelioma. This study presents a strategy using a breakable nanocarrier to stabilize, transport, and release a platinum(IV) prodrug, which is activated by the presence of glutathione in neoplastic cells. In vitro and in vivo experiments demonstrate the successful release and activation of the Pt-based drug inside cancer cells, leading to a significant reduction in tumor growth.
ADVANCED HEALTHCARE MATERIALS
(2023)
Article
Pharmacology & Pharmacy
Anife Ahmedova, Rositsa Mihaylova, Silviya Stoykova, Veronika Mihaylova, Nikola Burdzhiev, Viktoria Elincheva, Georgi Momekov, Denitsa Momekova
Summary: Pt(IV) complexes formed by linking pyrene butyric acid with cisplatin exhibit high anticancer potency against leukemia cells and multidrug-resistant derivatives, while showing low toxicity to healthy cells. The larger bis-pyrene complex is found to potentially be trapped in the cytoskeleton, limiting its cytotoxicity to adherent cells.
Article
Chemistry, Inorganic & Nuclear
Juan Sanchez-Camacho, Sonia Infante-Tadeo, Ana C. Carrasco, Stefano Scoditti, A'lvaro Martinez, Fabienne Barroso-Bujans, Emilia Sicilia, Ana M. Pizarro, Luca Salassa
Summary: In this study, two new asymmetric Pt(IV) derivatives were designed and synthesized, which could be effectively activated into toxic Pt(II) species by incubation with nicotinamide adenine dinucleotide, sodium ascorbate, and glutathione in the dark and under light irradiation. One of the derivatives displayed enhanced toxicity in MDA-MB-231 breast cancer cells preincubated with ascorbate, suggesting selective triggering of oxaliplatin generation through redox activation. Covalent binding of the flavin to the Pt complex was shown to be pivotal for this effect.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhouyang Huang, A. Paden King, James Lovett, Barry Lai, Joshua J. Woods, Hugh H. Harris, Justin J. Wilson
Summary: The photophysical and photochemical properties of two Pt(iv)Re(i) conjugates were studied and found to exhibit modest photocytotoxicity against ovarian cancer cells. X-ray fluorescence microscopy revealed colocalization of Pt and Re in cells, whether or not they had been irradiated. This work highlights the potential of photoactivated multilimetallic agents for cancer treatment.
CHEMICAL COMMUNICATIONS
(2021)
Article
Pharmacology & Pharmacy
Aleen Khoury, Jennette A. Sakoff, Jayne Gilbert, Kieran F. Scott, Shawan Karan, Christopher P. Gordon, Janice R. Aldrich-Wright
Summary: Platinum(IV) prodrugs showed outstanding activity against various cancer cell lines, with nanomolar activities observed. Cellular accumulation of the complexes was correlated with increased cytotoxicity. COX inhibition or lipophilicity did not solely determine the cytotoxicity of these prodrugs.
Article
Biochemistry & Molecular Biology
Ruchika Ojha, Peter C. Junk, Alan M. Bond, Glen B. Deacon
Summary: Pt-IV coordination complexes were synthesized by oxidizing the antitumor agent [Pt-II(p-BrC6F4)NCH2CH2NEt2}Cl(py)]. Experimental data showed that excess H2O2 and elevated temperature favored the oxidation of the ligand, while a smaller amount of H2O2 at room temperature favored the oxidation of the metal, resulting in the formation of platinum(IV) complexes.
Article
Chemistry, Multidisciplinary
M. K. Pal, A. G. Majumdar, K. V. Vivekananda, A. P. Wadawale, M. Subramanian, N. Bhuvanesh, S. Dey
Summary: A series of Pt metallacycles were constructed and their structures and stability were studied. The new Pt complexes showed low antiproliferative activity but high induction of apoptosis and DNA damage.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Stefano Scoditti, Gloria Mazzone, Nico Sanna, Emilia Sicilia
Summary: This study presents an in-depth computational investigation into the ability of a recently proposed multi-action Ru(II)-Pt(IV) conjugate to act as a photosensitizer in photodynamic therapy (PDT) and chemo-therapeutic drugs. The results show that the investigated complex is capable of releasing a light-absorbing chromophore for use in PDT, and it can also generate cytotoxic reactive oxygen species.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Umut Dogan, Ozge Ozcan, Gizem Alaca, Aydan Ari, Salih Gunnaz, H. Tansel Yalcin, Onur Sahin, Sevil Irisli
Summary: Three new Platinum complexes were synthesized and characterized, showing moderate cytotoxic activities against cancer cell lines and antimicrobial effects on both gram positive and gram negative bacteria.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Yan-Bo Peng, Wei He, Qiang Niu, Can Tao, Xiao-Lan Zhong, Cai-Ping Tan, Ping Zhao
Summary: Inorganic medicinal chemistry has largely focused on platinum or ruthenium, with insufficient research on other metal centers such as rhodium. This study synthesized a series of cyclometalated rhodium(iii) complexes, which showed stronger anticancer activity than cisplatin. Mechanistic studies revealed that these complexes induced cellular apoptosis through mitochondrial pathways by causing severe damage and cell cycle arrest.
DALTON TRANSACTIONS
(2021)
Article
Pharmacology & Pharmacy
Yvonne Lerchbammer-Kreith, Michaela Hejl, Petra Vician, Michael A. Jakupec, Walter Berger, Mathea S. Galanski, Bernhard K. Keppler
Summary: Based on their drug delivery properties and activity against tumors, PAMAM dendrimers were combined with platinum(IV) complexes to improve anticancer treatment. The conjugates showed faster reduction behavior compared to the platinum(IV) complexes and exhibited significantly increased cytotoxic activity in human cell lines. In vivo experiments demonstrated tumor growth inhibition and prolonged animal survival.
Article
Biochemistry & Molecular Biology
Angelico D. Aputen, Maria George Elias, Jayne Gilbert, Jennette A. Sakoff, Christopher P. Gordon, Kieran F. Scott, Janice R. Aldrich-Wright
Summary: The DNA-alkylating derivative chlorambucil was coordinated with atypical cytotoxic platinum(IV) complexes, resulting in prodrugs with remarkable antitumor potential. The prodrug 56CLB showed exceptionally high activity in multiple cancer cell lines and induced significant production of reactive oxygen species in treated cells.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuewen Sun, Enmao Yin, Yehong Tan, Tao Yang, Dongfan Song, Suxing Jin, Zijian Guo, Xiaoyong Wang
Summary: Platinum-based anticancer drug DCP can effectively induce immunogenic cell death, stimulating the antitumor immune response and increasing cytotoxicity to cancer cells.
DALTON TRANSACTIONS
(2021)
Article
Biochemistry & Molecular Biology
Anli Gao, Yaxi Wu, Juan Yu, Hongyu Gong, Jing Jiang, Caihong Yang, Weiping Liu, Chen Qing
Summary: Two new Pt(iv) complexes with mesylate as the outer sphere anion were synthesized. Both complexes have excellent water-solubility and anticancer activity. SPt-2 showed higher in vitro anticancer activity against three human cancer cell lines and stronger antitumor efficacy in a mouse colon carcinoma model compared to oxaliplatin. This complex has the potential to be developed as a prodrug for oxaliplatin.
RSC MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Houzong Yao, Yuliana F. Gunawan, Gongyuan Liu, Man-Kit Tse, Guangyu Zhu
Summary: In this study, a series of carboplatin-based photoactivable platinum(iv) prodrugs containing BODIPY axial ligands with different lengths were designed and synthesized. These prodrugs can be rapidly photoactivated under irradiation and exhibit moderate photocytotoxicity. Optimization of axial ligands can promote the photoactivation of these prodrugs.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Angela Lis, Viorica Gladchi, Gheorghe Duca, Sergey Travin
Summary: This work presents studies on the photochemical transformations of TU and Cys with the addition of Cu(II) or Fe(III) ions. The results show that the oxidation rate of the thiols increases significantly when Cu(II) or Fe(III) ions are added to the system. It has also been found that TU and Cys can form stable complex compounds with the studied metal ions. The oxidation rates of the thiols are found to depend on the radiation intensity and emission spectrum of the irradiation sources.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Cristiane F. A. Teixeira, Estefane I. Teixeira, J. P. C. Nascimento, M. Amilcar Junior, L. M. C. Pinto, Anderson R. L. Caires, G. B. Alcantara, Ana C. Micheletti, Victor M. Deflon, Davi F. Back, Heveline Silva, Lucas Pizzuti, Gleison Antonio Casagrande
Summary: Novel binuclear heteroleptic copper(I) complexes based on mixed DPPE/thiocarbamoyl-pyrazoline ligands were synthesized and structurally characterized. These complexes exhibited similar structural behavior around the Copper(I) atoms and showed promising antimicrobial and anticancer activities.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Chen Chen, Li Liu, Xin-Xin Zhong, Fa-Bao Li, Hai-Mei Qin
Summary: Thermally activated delayed fluorescent (TADF) Cu(I) halide complexes with short lifetimes and intense emissions were synthesized and characterized. These complexes exhibit intense green to yellow-green delayed fluorescence and are suitable for OLED devices.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Tian-Yu Zhang, Xue-Qian Wu, Heng-Yu Ruan, Yi Yuan, Le Wang, Ya-Pan Wu, Qing-Wen Han, Ruan Chi, Dong-Sheng Li
Summary: In this study, a novel Ni(II)-based metal-organic framework with good electrocatalytic oxidation performance was successfully synthesized, showing potential for direct alcohol fuel cells.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Susanta Das Baishnab, R. N. Dutta Purkayastha, Waldemar Maniukiewicz, Rosa M. Gomila, Antonio Frontera
Summary: The synthesis, structure, and DNA binding ability of three decavanadate complexes containing cationic organic moieties were reported. The complexes were characterized by various techniques and their solid-state structures were analyzed. The complexes showed interesting assembly patterns and exhibited moderately strong intercalative binding with CTDNA. Additionally, their micellization behavior in the presence of the surfactant CTAB was studied.
INORGANICA CHIMICA ACTA
(2024)
Review
Chemistry, Inorganic & Nuclear
Jubaraj B. Baruah
Summary: Isomorphous series are generated by replacing atoms or molecules to form materials with similar compositions. They allow modulation of structure and properties, and generate equivalent compositions with novel material properties. The study of stereo-electronic aspects of different equivalent compositions can improve the utility of the original composition.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Kamelah S. Al-Rashdi, Bandar A. Babgi, Ehab M. M. Ali, Bambar Davaasuren, Abdul-Hamid M. Emwas, Mariusz Jaremko, Mark G. Humphrey, Mostafa A. Hussien
Summary: Tridentate ligands were used to synthesize a set of palladium complexes, which were characterized and found to have DNA and BSA binding abilities. The complexes also showed differences in anticancer activities.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Diane Isaacs, Chandler Cox, Mark A. Bezpalko, W. Scott Kassel, William G. Dougherty
Summary: The structure and electrochemical properties of zinc(II) complexes with a face-capping ligand have been investigated, revealing the effect of the ligand on bound semiquinonate (SQ) radicals. The substitution pattern of the SQ ring plays a crucial role in determining the fate of the bound SQ radicals. Additionally, the protective pocket formed by the ligand's phenyl substituents is unable to prevent decomposition of SQ radicals with minimal steric bulk, suggesting that substitution of the SQ ring is the main contributor to their stabilization.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Xingliang Chen, Zhiqiang Jiang
Summary: Here, a series of zinc tetrahedral tetrazolate frameworks (Zn-TTFs) are presented, and it is demonstrated that rotation of carboxyl group can generate structural diversity. Compound 3 exhibits a unique zeolite-like structure, while compound 4 shows both super acid and alkali resistance.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Ankita Puri, Allison Mcaninch, Sheng Shu, Khashayar Rajabimoghadam, Maxime A. Siegler, Marcel Swart, Isaac Garcia-Bosch
Summary: In this article, the synthesis and characterization of copper, nickel, and palladium complexes bound by bidentate ligands derived from ortho-phenylenediamine are described. The complexes contain tunable H-bond donors and their crystal structures reveal intramolecular H-bonding interactions between the ligand scaffolds. Variations in the coordination sphere led to the isolation of the complexes in square-planar or twisted pseudo-tetrahedral geometries. Structural analysis showed that intramolecular H-bonding interactions can be altered by disrupting the bonds between countercations, solvent of crystallization, and ligand scaffold, resulting in changes in the geometry of the complexes. DFT calculations confirmed that Cu complexes prefer twisted geometries while Ni and Pd complexes favor square-planar geometries.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Laiane dos Santos Oliveira, Pedro Henrique de Souza Guarda, Leticia Bazilio Rosa, Gustavo Clauss Rodrigues, Daniele Daiane Affonso, Joao Ernesto de Carvalho, Igor Andrade Santos, Mark Harris, Douglas Hideki Nakahata, Jose Ricardo Sabino, Danilo Ciccone Miguel, Ana Lucia Tasca Gois Ruiz, Ana Carolina Gomes Jardim, Camilla Abbehausen
Summary: Chalcones are chemical precursors of flavonoids that have various biological properties. In this study, novel copper(II)-2'-hydroxy-4-benzyloxychalcone complexes were synthesized and evaluated for their antileishmanial, antiproliferative, and antiviral activities. The results demonstrated that these complexes showed potential effects against tumor cells, leishmania parasites, and SARS-CoV-2 virus. The study also highlighted the influence of ligand structure on biological activity.
INORGANICA CHIMICA ACTA
(2024)
Review
Chemistry, Inorganic & Nuclear
Archana Thakur, Harpreet Kaur, Vishal Tyagi
Summary: This review article discusses the findings of research on the 13C NMR spectra of di- and tri-butyltin carboxylates, highlighting the importance of 13C NMR chemical shifts in determining the chemical surroundings of carbon nuclei and their role in structure elucidation.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Qiang Zhao, Qi-Yang Li, Zhi Shen, Guo Zang, Wen-Jun Lv
Summary: In this study, five metal complexes were synthesized using a solvothermal reaction and their structures were analyzed by single crystal X-ray diffraction. Fluorescence and magnetic properties of some complexes were also investigated.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Jeremy Erb, Darcy Setter, Jake Swavey, Frederick Willits, Shawn Swavey
Summary: Three BODIPY-Ru(II) complexes were synthesized by coordinating [Ru(bpy)2Cl]+ complexes to BODIPY ligands. The spectroscopic and electrochemical properties of the complexes were characterized. The complexes exhibited intense absorption peaks due to the pi pi* transitions localized on the BODIPY core, and additional charge transfer transitions associated with the metal center. The complexes showed significant singlet oxygen generation and were able to induce photo-nicking of DNA.
INORGANICA CHIMICA ACTA
(2024)
Article
Chemistry, Inorganic & Nuclear
Sahin Reja, Dilip Sarkar, Kaushik Sarkar, Deboshmita Mukherjee, T. K. S. Fayaz, Palash Sanphui, Rajesh Kumar Das
Summary: A promising bioinspired metallocatalyst has been produced and characterized, showing high catalytic activity in oxygen dependant enzymatic radical pathway. The catalyst also exhibits inter and intra molecular H-bonding and C-H-pi interactions.
INORGANICA CHIMICA ACTA
(2024)