journal
MENU ▼
Read by QxMD icon Read
search

Journal of Inorganic Biochemistry

journal
https://www.readbyqxmd.com/read/28641893/recent-development-of-transition-metal-complexes-with-in-vivo-antitumor-activity
#1
Jia-Xin Liang, Hai-Jing Zhong, Guanjun Yang, Kasipandi Vellaisamy, Dik-Lung Ma, Chung-Hang Leung
The often severe side effects displayed by currently used platinum and ruthenium complexes have motivated researchers to design and develop transition metal-based anti-tumor agents with reduced toxicity. Distinct from organic anti-tumor drugs, transition metal complexes possess several properties that render them as promising scaffolds for anti-cancer drug discovery. While a vast number of metal complexes have been synthesized and reported to be promising and potent in vitro anticancer active compounds, fewer have shown efficacy in in vivo models...
June 16, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28623731/new-cu-ii-complexes-with-pyrazolyl-derived-schiff-base-ligands-synthesis-and-biological-evaluation
#2
Nádia Ribeiro, Somnath Roy, Nataliya Butenko, Isabel Cavaco, Teresa Pinheiro, Irina Alho, Fernanda Marques, Fernando Avecilla, João Costa Pessoa, Isabel Correia
Since the discovery of cisplatin there has been a continuous pursuit for new metallodrugs showing higher efficacies and lower side effects. In this work, new copper(II) complexes (C1-C6) of Schiff bases derived from pyrazolyl were developed. Through condensation of 5-methyl-1H-pyrazole-3-carbohydrazide with different aromatic aldehydes - pyridoxal, salicylaldehyde, 3-methoxy-2-hydroxybenzaldehyde, 3-ethoxy-2-hydroxybenzaldehyde and 2-hydroxynaphthene-1-carbaldehyde - a set of new pyrazole based "ONO" tridentate Schiff bases were obtained in moderate to good yields - L1-L6, as well as their Cu(II)-complexes...
June 1, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28622579/evidence-of-promising-biological-pharmacological-activities-of-the-sertraline-based-copper-complex-serh2-2-cucl4
#3
Nancy Martini, Juliana E Parente, Maria Eugenia Toledo, Graciela E Escudero, Carlos H Laino, Juan José Martínez Medina, Gustavo A Echeverría, Oscar E Piro, Luis Lezama, Patricia A M Williams, Evelina G Ferrer
In the current study the ability of copper complex to exert multiple biological activities is combined with the pharmacological action of sertraline (SerH2Cl, antidepressant drug). The hydrated and anhydrous forms of the tetrachlorocuprate(II) salts, namely (SerH2)2[CuCl4]·½H2O and (SerH2)2[CuCl4], were synthesized and characterized by physicochemical methods. The crystal structures were determined by X-ray diffraction methods. The hydrate complex crystallizes in the monoclinic P21 space group with a=8.0807(2) Å, b=36...
June 1, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28599130/negligible-interaction-of-ru-phen-3-2-with-human-serum-albumin-makes-it-promising-for-a-reliable-invivo-assessment-of-the-tissue-oxygenation
#4
Dominik Belej, Zuzana Jurasekova, Michal Nemergut, Georges Wagnieres, Daniel Jancura, Veronika Huntosova
The interaction between a ruthenium - based water soluble oxygen probe ([Ru(Phen)3](2+), phen - phenanthroline) and human serum albumin (HSA) was investigated with the aim of describing the influence of HSA on the [Ru(Phen)3](2+) luminescence properties. Nowadays, several oxygen sensitive luminescent probes are used to determine the oxygen level in different compartments of living organisms. However, they can interact, depending on their hydrophilic/hydrophobic characters, with various serum proteins, and/or lipids, during their utilization for invivo oxygen measurement...
May 31, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28599129/unfolding-biological-properties-of-a-versatile-dicopper-ii-precursor-and-its-two-mononuclear-copper-ii-derivatives
#5
Anup Paul, Susanta Hazra, Gunjan Sharma, M Fátima C Guedes da Silva, Biplob Koch, Armando J L Pombeiro
Synthesis, inter-conversions and biological study of the dichloro bridged dicopper(II) compound [CuLCl]2 (1) and its two mononuclear derivatives [CuLCl(H2O)]·H2O (2) and [CuLCl(py)] (3) (HL=2-(2-pyridylmethyleneamino)benzenesulfonic acid) are described. The dimeric compound 1 collapses into monomers 2 and 3 in the presence of coordinating solvents, water and pyridine, respectively, and 1 is regenerated upon simple stirring of 2 or 3 in methanol. The reactions of 1 with neutral (present study) and charged (earlier studies) ligands result in monomeric and multimeric compounds, respectively, attesting that it is a versatile dicopper(II) precursor...
May 31, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28583712/structural-influences-on-the-activity-of-bismuth-iii-indole-carboxylato-complexes-towards-helicobacter-pylori-and-leishmania
#6
Amita Pathak, Victoria L Blair, Richard L Ferrero, Lukasz Kedzierski, Philip C Andrews
Seven new bismuth(III) complexes derived from indole-carboxylic acids have been synthesised: five are homoleptic; [Bi(IAA)3] B1, [Bi(IPA)3] B2, [Bi(IBA)3] B3, [Bi(MICA)3] B4, [Bi(IGA)3] B6, and two are heteroleptic [BiPh(MICA)2] B5 (where IAA-H=2-(1H-indol-3-yl)acetic acid, IPA-H=3-(1H-indol-3-yl)propanoic acid, IBA-H=4-(1H-indol-3-yl)butanoic acid, IGA-H=2-(1H-indol-3-yl)-2-oxoacetic acid, and MICA-H=1-methyl-1H-indole-3-carboxylic acid). All complexes were fully characterised by elemental analysis, infrared and mass-spectroscopy, and nuclear magnetic resonance ((1)H, (13)C) spectroscopy...
May 31, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28601723/terpyridyl-oxovanadium-iv-complexes-for-dna-crosslinking-and-mito-targeted-photocytotoxicity
#7
Arun Kumar, Ila Pant, Akanksha Dixit, Samya Banerjee, Bhabatosh Banik, Rupak Saha, Paturu Kondaiah, Akhil R Chakravarty
Oxovanadium(IV) complexes [VO(L(1)/L(2))Cl2](n+) (1,2) of (anthracenyl)terpyridine (An-tpy as L(1) in 1, n=0) and triphenylphosphonium-appended (anthracenyl)terpyridine (An-tpy-TPP(+) as L(2) in 2, n=1) were synthesized, characterized and their DNA crosslinking ability, photocytotoxicity in visible light and cellular localization in cancer cells studied. The bromide derivative of 2, viz. [VO(An-tpy-TPP)Br2]Br (3) is structurally characterized. The structure showed trans disposition of two halides in the coordination sphere and the TPP(+) unit is a pendant to the terpyridyl ligand...
May 30, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28558258/antitumoral-effect-of-vanadium-compounds-in-malignant-melanoma-cell-lines
#8
Carla Rozzo, Daniele Sanna, Eugenio Garribba, Maria Serra, Alessio Cantara, Giuseppe Palmieri, Marina Pisano
In this study we evaluated the anticancer activity against malignant melanoma (MM) of four different vanadium species: the inorganic anion vanadate(V) (indicated with VN), and three oxidovanadium(IV) complexes, [V(IV)O(dhp)2] where dhp(-) is the anion 1,2-dimethyl-3-hydroxy-4(1H)-pyridinonate (indicated with VS2), [V(IV)O(mpp)2] where mpp(-) is 1-methyl-3-hydroxy-4(1H)-pyridinonate (indicated with VS3), and [V(IV)O(ppp)2] where ppp(-) is 1-phenyl-2-methyl-3-hydroxy-4(1H)-pyridinonate (indicated with VS4). The antitumor effects of these compounds were studied against two different MM cell lines (A375 and CN-mel) and a fibroblast cell line (BJ) as normal control...
May 22, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28552420/controlled-self-assembling-structures-of-ferrocene-dipeptide-conjugates-composed-of-ala-pro-nhch2ch2sh-chain
#9
Toshiyuki Moriuchi, Taiki Nishiyama, Yoshiki Tayano, Toshikazu Hirao
Bioorganometallic ferrocene-dipeptide conjugates with the Ala-Pro-cysteamine chain, Fc-L-Ala-L-Pro-NHCH2CH2SH (2) and Fc-L-Ala-D-Pro-NHCH2CH2SH (4) (Fc=ferrocenoyl), were prepared by the reduction of the ferrocene-dipeptide conjugates, Fc-L-Ala-L-Pro-cystamine-L-Pro-L-Ala-Fc (1) or Fc-L-Ala-D-Pro-cystamine-D-Pro-L-Ala-Fc (3), respectively. Control of the self-assembling structures of the ferrocene-dipeptide conjugates was demonstrated by changing the chirality of the amino acid. The molecular structure of 2 composed of the L-Ala-L-Pro-NHCH2CH2SH chain confirmed the formation of intramolecular hydrogen bond of N-H⋯N pattern between the NH of cysteamine moiety and the nitrogen of Pro moiety...
May 18, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28550768/photochemical-studies-of-cis-ru-bpy-2-4-bzpy-co-pf6-2-and-cis-ru-bpy-2-4-bzpy-cl-pf6-blue-light-induced-nucleobase-binding
#10
Aurideia P de Sousa, Edinilton M Carvalho, Javier Ellena, Eduardo H S Sousa, Jackson R de Sousa, Luiz G F Lopes, Peter C Ford, Alda K M Holanda
The ruthenium(II) compounds cis-[Ru(bpy)2(4-bzpy)(CO)](PF6)2 (I) and cis-[Ru(bpy)2(4-bzpy)(Cl)](PF6) (II) (4-bzpy=4-benzoylpyridine, bpy=2,2'-bipyridine) were synthesized and characterized by spectroscopic and electrochemical techniques. The crystal structure of II was determined by X-ray diffraction. The photochemical behavior of I in aqueous solution shows that irradiation with ultraviolet light (365nm) releases both CO and 4-bzpy leading to the formation of the cis-[Ru(bpy)2(H2O)2](2+) ion as identified by NMR and electronic spectroscopy...
May 15, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28525806/a-novel-porphyrin-based-molecular-probe-zntcppspm4-with-catalytic-stabilizing-and-chiroptical-diagnostic-power-towards-dna-b-z-transition
#11
Chiara M A Gangemi, Alessandro D'Urso, Gaetano A Tomaselli, Nina Berova, Roberto Purrello
In this work we have designed a new zinc(II) porphyrin with four spermines conjugate in the meso positions, meso-tetrakis-(4-carboxysperminephenyl)porphyrin, ZnTCPPSpm4) with the aim of acting as a chiroptical probe for the Z-form of DNA, a high energy transient conformation of DNA. In addition to monitor by Electronic Circular Dichroism chiroptical response the formation of Z-DNA in the presence of micromolar concentration of spermine, this porphyrin based molecular probe is also able to catalyze and stabilize this important DNA structure...
May 14, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28511064/design-synthesis-and-evaluation-of-anticancer-activity-of-ruthenium-ii-polypyridyl-complexes
#12
Bing Tang, Dan Wan, Shang-Hai Lai, Hui-Hui Yang, Cheng Zhang, Xiu-Zhen Wang, Chuan-Chuan Zeng, Yun-Jun Liu
A new ligand PFPIP (PFPIP=2-(2,3,4,5,6-pentafluorophenyl)[4,5-f]imadazo [1,10]phenanthroline) and its four ruthenium(II) polypyridyl complexes [Ru(NN)2(PFPIP)](ClO4)2 (NN=dmb: 4,4'-dimethyl-2,2'-bipyridine, 1; bpy: 2,2'-bipyridine, 2; phen: 1,10-phenanthroline, 3; dmp: 2,9-dimethyl-1,10-phenanthroline, 4) were synthesized and characterized by elemental analysis, IR, (1)H NMR, (13)C NMR and ESI-MS. The cytotoxic activity in vitro of the ligand and complexes toward BEL-7402, A549, HeLa, HepG2 and MG-63 cell lines was evaluated using MTT method (MTT=(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide)...
May 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28511062/structure-activity-relationship-between-zn-2-chelated-alkylated-poly-1-vinylimidazole-and-gene-transfection
#13
Shoichiro Asayama, Mizuki Sakata, Hiroyoshi Kawakami
The structure-activity relationship between Zn(2+)-chelated alkylated poly(1-vinylimidazole) (PVIm) and gene transfection has been demonstrated. From a chemical structure perspective, ethylated PVIm (PVIm-Et) chelated the most Zn(2+) ions compared to methylated PVIm (PVIm-Me) and butylated PVIm (PVIm-Bu). The resulting Zn(2+)-chelated PVIm-Et formed more stable complexes with plasmid DNA complex than non-chelated PVIm-Et. From a biological activity perspective, the Zn(2+)-chelated PVIm-Et delivered the highest amount of Zn(2+) ions inside the cell, corresponding to the highest gene transfection...
May 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28511061/uptake-of-ga-curcumin-derivatives-in-different-cancer-cell-lines-toward-the-development-of-new-potential-68-ga-labelled-curcuminoids-based-radiotracers-for-tumour-imaging
#14
Sara Rubagotti, Stefania Croci, Erika Ferrari, Giulia Orteca, Michele Iori, Pier C Capponi, Annibale Versari, Mattia Asti
Thanks to the ability to suppress the proliferation and to kill tumour cells, several studies have shown the anti-cancer effects of curcumin (CUR) and its derivatives, i.e. diacetylcurcumin (DAC) and bis-dehydroxycurcumin (bDHC). This study is focused onto the development of curcuminoid complexes with gallium-68 employed as potential new radio-labelled probes to detect neoplastic tissues through imaging techniques such as positron emission tomography. To this purpose, the uptake of three Ga-curcuminoid complexes, namely Ga(CUR)2(+), Ga(DAC)2(+), Ga(bDHC)2(+), by various tumour cell lines was compared with the uptake of the same compounds by normal human lymphocytes by flow cytometry using the intrinsic fluorescence of the curcuminoids...
May 10, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28511060/a-comparison-study-on-rnase-a-oligomerization-induced-by-cisplatin-carboplatin-and-oxaliplatin
#15
Delia Picone, Federica Donnarumma, Giarita Ferraro, Giovanni Gotte, Andrea Fagagnini, Giovanna Butera, Massimo Donadelli, Antonello Merlino
Cisplatin (CDDP) can form interprotein cross-links, leading to the formation of platinated oligomers. A dimer, a trimer and higher oligomers of bovine pancreatic ribonuclease (RNase A) obtained upon reaction with CDDP in 1:10 protein to metal ratio at 37°C have been previously characterized. Here, we verify the ability of carboplatin and oxaliplatin to induce RNase A oligomerization under the same experimental conditions. The amount of formed RNase A oligomers was compared with that obtained in the reaction of the protein with CDDP...
May 9, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28511063/competitive-reactions-among-glutathione-cisplatin-and-copper-phenanthroline-complexes
#16
Enzo Cadoni, Elisa Valletta, Graziano Caddeo, Francesco Isaia, Maria Grazia Cabiddu, Sarah Vascellari, Tiziana Pivetta
A large number of cancers are treated with cisplatin (CDDP). However, its use is limited by drug resistance, which is often related to intracellular levels of thiol-containing molecules such as glutathione (GSH). The role of GSH in cisplatin-resistant cancer cells is still unclear. GSH may form adducts with CDDP which results in the deactivation of the drug, and, actually, a high intracellular level of GSH was observed in some cisplatin-resistant cancers. To overcome drug resistance, CDDP is often administered in combination with one or more drugs to exploit a possible synergistic effect...
May 8, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28551479/dna-and-protein-binding-double-strand-dna-cleavage-and-cytotoxicity-of-mixed-ligand-copper-ii-complexes-of-the-antibacterial-drug-nalidixic-acid
#17
Rangasamy Loganathan, Mani Ganeshpandian, Nattamai S P Bhuvanesh, Mallayan Palaniandavar, Amsaveni Muruganantham, Swapan K Ghosh, Anvarbatcha Riyasdeen, Mohammad Abdulkader Akbarsha
The water soluble mixed ligand complexes [Cu(nal)(diimine)(H2O)](ClO4) 1-4, where H(nal) is nalidixic acid and diimine is 2,2'-bipyridine (1), 1,10-phenanthroline (2), 5,6-dimethyl-1,10-phenanthroline (3), and 3,4,7,8-tetramethyl-1,10-phenanthroline (4), have been isolated. The coordination geometry around Cu(II) in 1 and that in the Density Functional Theory optimized structures of 1-4 has been assessed as square pyramidal. The trend in DNA binding constants (Kb) determined using absorption spectral titration (Kb: 1, 0...
May 3, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28494276/prediction-of-ligand-effects-in-platinum-amyloid-%C3%AE-coordination
#18
Matthew Turner, Robert J Deeth, James A Platts
Ligand field molecular mechanics (LFMM) and semi-empirical Parametric Model 7 (PM7) methods are applied to a series of six Pt(II)-Ligand systems binding to the N-terminal domain of the amyloid-β (Aβ) peptide. Molecular dynamics using a combined LFMM/Assisted Model Building with Energy Refinement (AMBER) approach is used to explore the conformational freedom of the peptide fragment, and identifies favourable platinum binding modes and peptide conformations for each ligand investigated. Platinum coordination is found to depend on the nature of the ligand, providing evidence that binding mode may be controlled by suitable ligand design...
May 2, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28505480/triphenyltin-iv-benzoates-with-diazenyl-imino-scaffold-exhibiting-remarkable-apoptosis-mediated-by-reactive-oxygen-species
#19
Tushar S Basu Baul, Dhrubajyoti Dutta, Andrew Duthie, Ritika Prasad, Nishant Kumar Rana, Biplob Koch, Edward R T Tiekink
The cytotoxic potency of a series of triphenyltin(IV) compounds of general composition [Ph3Sn(L(n))] (1-6) has been probed in vitro employing MDA-MB-231 (human breast cancer) and HeLa (human cervical cancer) cell lines, where L(n)=L(1-3); isomeric 2/3/4-{(E)-2-[4-(dimethylamino)phenyl]diazenyl}benzoates and L(4-6) are their corresponding isoelectronic imino analogues 2/3/4-[(E)-{[4-(dimethylamino)phenyl]methylidene}amino]benzoates. Compounds 1-6 have been characterized by elemental analysis and their spectroscopic properties were studied using IR and NMR ((1)H, (13)C, (119)Sn) techniques...
April 29, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28501743/antarctic-fish-versus-human-cytoglobins-the-same-but-yet-so-different
#20
Bert Cuypers, Stijn Vermeylen, Dietmar Hammerschmid, Stanislav Trashin, Vanoushe Rahemi, Albert Konijnenberg, Amy De Schutter, C-H Christina Cheng, Daniela Giordano, Cinzia Verde, Karolien De Wael, Frank Sobott, Sylvia Dewilde, Sabine Van Doorslaer
The cytoglobins of the Antarctic fish Chaenocephalus aceratus and Dissostichus mawsoni have many features in common with human cytoglobin. These cytoglobins are heme proteins in which the ferric and ferrous forms have a characteristic hexacoordination of the heme iron, i.e. axial ligation of two endogenous histidine residues, as confirmed by electron paramagnetic resonance, resonance Raman and optical absorption spectroscopy. The combined spectroscopic analysis revealed only small variations in the heme-pocket structure, in line with the small variations observed for the redox potential...
April 28, 2017: Journal of Inorganic Biochemistry
journal
journal
27661
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"