Browsing by Subject "cytotoxicity"

Article

Caspase-independent pathways of programmed cell death: The unraveling of new targets of cancer therapy?

Constantinou, Constantina; Papas, Konstantinos A.; Constantinou, Andreas I. (2009)

In the past few years, accumulating evidence in the literature supports the existence of pathways of caspase-independent programmed cell death (CI-PCD). These pathways are likely to be acting as 'death backup systems' that ...

Article

Effect of the calmodulin inhibitor trifluoperazine on phosphorylation of P-glycoprotein and topoisomerase II: Relationship to modulation of subcellular distribution, DNA damage and cytotoxicity of doxorubicin in multidrug resistant L1210 mouse leukemia cells

Ganapathi, R.; Kamath, N.; Constantinou, Andreas I.; Grabowski, D.; Ford, J.; Anderson, A. (1991)

Article

Evidence that a metabolilte of equine estrogens, 4-hydroxyequilenin, induces cellular transformation in vitro

Pisha, E.; Lui, X.; Constantinou, Andreas I.; Bolton, J. L. (2001)

Estrogen replacement therapy has been correlated with an increased risk of developing hormone-dependent cancers. 4-Hydroxyequilenin (4-OHEN) is a catechol metabolite of equilenin and equilin which are components of the ...

Article

Hydrophilic cationic star homopolymers based on a novel diethanol-n-methylamine dimethacrylate cross-linker for sirna transfection: Synthesis, characterization, and evaluation

Pafiti, Kyriaki S.; Mastroyiannopoulos, Nikolaos P.; Phylactou, Leonidas A.; Patrickios, Costas S. (2011)

Four cationic hydrophilic star homopolymers based on the novel hydrophilic, positively ionizable cross-linker bis(methacryloyloxyethyl)methylamine (BMEMA) were synthesized using sequential group transfer polymerization ...

Article

Identification of a potent activator of Akt phosphorylation from a novel series of phenolic, picolinic, pyridino, and hydroxamic zinc(II) complexes

Georgiades, Savvas N.; Mak, L. H.; Angurell, I.; Rosivatz, E.; Firouz Mohd Mustapa, M.; Polychroni, Christoulla; Woscholski, R.; Vilar, R. (2011)

The discovery of small-molecule modulators of signaling pathways is currently a particularly active area of research. We aimed at developing unprecedented metal-based activators of Akt signaling which can potentially find ...

Article

A metabolite of equine estrogens, 4-hydroxyequilenin, induces DNA damage and apoptosis in breast cancer cell lines

Chen, Y.; Liu, X.; Pisha, E.; Constantinou, Andreas I.; Hua, Y.; Shen, L.; Van Breemen, R. B.; Elguindi, E. C.; Blond, S. Y.; Zhang, Fengwangdong; Bolton, J. L. (2000)

Estrogen replacement therapy has been correlated with an increased risk of developing breast or endometrial cancer. 4-Hydroxyequilenin (4-OHEN) is a catechol metabolite of equilenin which is a minor component of the estrogen ...

Article

Novel mixed metal Ag(I)-Sb(III)-metallotherapeutics of the NSAIDs, aspirin and salicylic acid: Enhancement of their solubility and bioactivity by using the surfactant CTAB

Gkaniatsou, E. I.; Banti, Christina N.; Kourkoumelis, Nikolaos; Skoulika, S.; Manoli, Maria; Tasiopoulos, Anastasios J.; Hadjikakou, Sotiris K. (2015)

The already known Ag(I)-Sb(III) compound of the formula {Ag(Ph3Sb)3(NO3)} (1) and two novel mixed metal Ag(I)-Sb(III) metallotherapeutics of the formulae {Ag(Ph3Sb)3(SalH)}(2) and {Ag(Ph3Sb)3(Asp)}(3) (SalH2 = salicylic ...

Article

Phenoxodiol (2H-1-benzopyran-7-0,1,3-(4-hydroxyphenyl)), a novel isoflavone derivative, inhibits DNA topoisomerase II by stabilizing the cleavable complex

Constantinou, Andreas I.; Husband, A. (2002)

Cancer therapeutic drugs that inhibit DNA topoisomerase (topo) II by stabilizing the cleavable complex are collectively known as topo II poisons. Phenoxodiol is a synthetic derivative of the plant isoflavone daidzein and ...

Article

Solubilization and stabilization of carotenoids using micelles: Delivery of lycopene to cells in culture

Xu, X.; Wang, Y.; Constantinou, Andreas I.; Stacewicz-Sapuntzakis, M.; Bowen, P. E.; Van Breemen, R. B. (1999)

The use of the organic cosolvents tetrahydrofuran and dimethylsulfoxide was found to be unsuitable for prostate tumor cell cultures because of solvent cytotoxicity and the poor solubility and instability of lycopene. For ...

Article

Study on single crystal structure of the antimony(III) bromide complex with 3-methyl-2-mercaptobenzothiazole and biological activity of some antimony(III) bromide complexes with thioamides

Ozturk, I. I.; Metsios, A. K.; Filimonova-Orlova, S.; Kourkoumelis, Nikolaos; Hadjikakou, Sotiris K.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Karkabounas, Spyridon Ch; Milaeva, E. R.; Hadjiliadis, Nick (2012)

Crystals of the [SbBr3(MMBZT)2] (1) complex (MMBZT = N-methyl-2- mercaptobenzothiazole) were grown from acetonitrile/methanol of the filtrate derived from the reaction between 3-methyl-2-mercaptobenzo thiazole (MMBZT) in ...

Article

Synthesis, characterization and biological studies of new antimony(III) halide complexes with ω-thiocaprolactam

Ozturk, I. I.; Banti, Christina N.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Kourkoumelis, Nikolaos; Charalabopoulos, Konstantinos A.; Hadjikakou, Sotiris K. (2012)

Three new antimony(III) halide complexes (SbX 3, X = Cl, Br and I) with the heterocyclic thione ω-thiocaprolactam (1-azacycloheptane-2- thione, (Hthcl)) of formulae {[SbCl 2(μ 2-Cl)(Hthcl) 2] n} (1), {[(SbBr 2(μ 2-Br)(Hthcl) ...