title: Synthesis, characterization and biological activity of oxovanadium (IV) complexes with cyclic polyalcohols.
abstract: Oxovanadium (IV) complexes of the cyclic polyols conduritol C (cond) and myo-inositol (inos) of stoichiometry Na(2)[VO(cond)(2)].2H(2)O and Na(2)[VO(inos)(2)].H(2)O were obtained in aqueous alkaline solutions. They were characterized by infrared and UV-Vis spectroscopies, thermoanalytical (thermogravimetric and differential thermal analysis) data and magnetic susceptibility measurements. The biological activities of the complexes on the proliferation, differentiation and glucose consumption were tested on osteoblast-like cells in culture. Conduritol C and myo-inositol did not produce any effect on these parameters. Normal and tumoral cell proliferation was inhibited about (ca.40-60%) by the two oxovanadium (IV) complexes in concentrations as low as 100microM. The complexes were also inhibitory on cell differentiation (ca. 70-80%) while they stimulate glucose consumption. Comparisons of these effects with those of the oxovanadium (IV) cation, under the same experimental conditions, were also performed.
authors.affiliation: Centro de Química Inorgánica (CEQUINOR/CONICET,UNLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. Correo 962, 1900 La Plata, Argentina.
authors.forename: Susana B
authors.initials: SB
authors.lastname: Etcheverry
authors.forename: Daniel A
authors.initials: DA
authors.lastname: Barrio
authors.forename: Juan
authors.initials: J
authors.lastname: Zinczuk
authors.forename: Patricia A M
authors.initials: PA
authors.lastname: Williams
authors.forename: Enrique J
authors.initials: EJ
authors.lastname: Baran
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000187:drug effects; D002460:Cell Line; D049109:Cell Proliferation / Q000187:drug effects; D003511:Cyclohexanols / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D053138:Cyclohexenes; D005947:Glucose; D007294:Inositol / Q000138:chemical synthesis / Q000737:chemistry / Q000494:pharmacology; D051379:Mice; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D010006:Osteoblasts / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D051381:Rats; D013053:Spectrophotometry; D017550:Spectroscopy, Fourier Transform Infrared; D013816:Thermodynamics; D014638:Vanadates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D003511:Cyclohexanols; D053138:Cyclohexenes; D009942:Organometallic Compounds; C075743:oxovanadium IV; C090988:conduritol B; D014638:Vanadates; D007294:Inositol; D005947:Glucose