12 documents found, page 1 of 2
Unveiling the agonistic properties of Preyssler-type Polyoxotungstates on purin...
Poejo, Joana; Gumerova, Nadiia I.; Rompel, Annette; Mata, Ana M.; Aureliano, Manuel; Gutierrez-Merino, CarlosThe Preyssler-type polyoxotungstate ({P5W30}) belongs to the family of polyanionic metal-oxides formed by group V and VI metal ions, such as V, Mo and W, commonly known as polyoxometalates (POMs). POMs have demonstrated inhibitory effect on a significant number of ATP-binding proteins in vitro. Purinergic P2 receptors, widely expressed in eukaryotic cells, contain extracellularly oriented ATP-binding sites and ...
The biological applications of metals and metal complexes
Aureliano, Manuel; Gumerova, Nadiia I.; Rompel, AnnetteOver the course of biological evolution, approximately 25 to 30 elements have been recognized as essential for the proper functioning of biological systems since the emergence of life [...]
The Preyssler-Type Polyoxotungstate Exhibits Anti-Quorum Sensing, Antibiofilm, ...
Faleiro, Leonor; Marques, Ana; Martins, João; Jordão, Luísa; Nogueira, Isabel; Gumerova, Nadiia I.; Rompel, Annette; Aureliano, ManuelSimple Summary: Besides showing the antibacterial activity of the Preyssler-type polyoxotungstate (POT) P5W30 with the ability to affect MRSA cells, we demonstrated that P5W30 also displays other proprieties, such as anti-quorum sensing and antibiofilm. These are biological activities that are reported for a POT for the first time. Quorum sensing and biofilm facilitate the bacterial colonization, antibiotic res...
The preyssler-type polyoxotungstate exhibits anti-quorum sensing, antibiofilm, ...
Faleiro, Maria Leonor; Marques, Ana; Martins, João; Jordão, Luísa; Nogueira, Isabel; Gumerova, Nadiia I.; Rompel, Annette; Aureliano, M.The increase in bacterial resistance to antibiotics has led researchers to find new compounds or find combinations between different compounds with potential antibacterial action and with the ability to prevent the development of antibiotic resistance. Polyoxotungstates (POTs) are inorganic clusters that may fulfill that need, either individually or in combination with antibiotics. Herein, we report the ability...
Inhibition of SERCA and PMCA Ca2+-ATPase activities by polyoxotungstates
Aureliano, Manuel; Fraqueza, Gil; Berrocal, Maria; Cordoba-Granados, Juan J.; Gumerova, Nadiia I.; Rompel, Annette; Gutierrez-Merino, CarlosPlasma membrane calcium ATPases (PMCA) and sarco(endo) reticulum calcium ATPases (SERCA) are key proteins in the maintenance of calcium homeostasis. Herein, we compare for the first time the inhibition of SERCA and PMCA calcium pumps by several polyoxotungstates (POTs), namely by Wells-Dawson phospho-tungstate anions [P2W18O62]6-(intact, {P2W18}), [P2W17O61]10-(monolacunary, {P2W17}), [P2W15O56]12-(trilacunary,...
Polyoxidovanadates' interactions with proteins: an overview
Aureliano, Manuel; Gumerova, Nadiia I.; Sciortino, Giuseppe; Garribba, Eugenio; McLauchlan, Craig C.; Rompel, Annette; Crans, Debbie C.Polyoxidovanadates (POVs, previously named polyoxovanadates) are a subgroup of polyoxidometalates (POMs, previously named polyoxometalates) with interesting pharmacological actions that have been tested as potential antidiabetic, antibacterial, antiprotozoal, antiviral, and anticancer drugs. They contain mainly vanadium and are able to interact with proteins, affecting various biological processes. The most stu...
Polyoxovanadates with emerging biomedical activities
Aureliano, Manuel; Gumerova, Nadiia I.; Sciortino, Giuseppe; Garribba, Eugenio; Rompel, Annette; Crans, Debbie C.Polyoxovanadates (POVs) are a subclass of a larger family of polyanionic group V and VI metal-oxo clus ters that are known as polyoxometalates (POMs). POMs have been found to have antidiabetic, antibacte rial, antiprotozoal, antiviral and anticancer activities, which have sparked interest in their use as bioinorganic drugs. Among POVs, decavanadate ([V10O28] 6 ; V10) is an isopolyoxovanadate recently described ...
The aquaporin-3-inhibiting potential of polyoxotungstates
Pimpão, Catarina; da Silva, Inês V.; Mósca, Andreia F.; Pinho, Jacinta O.; Gaspar, Maria Manuela; Gumerova, Nadiia I.; Rompel, AnnettePolyoxometalates (POMs) are of increasing interest due to their proven anticancer activities. Aquaporins (AQPs) were found to be overexpressed in tumors bringing particular attention to their inhibitors as anticancer drugs. Herein, we report for the first time the ability of polyoxotungstates (POTs), such as of Wells-Dawson P2W18, P2W12, and P2W15, and Preyssler P5W30 structures, to affect aquaporin-3 (AQP3) ac...
Inhibition of Na+/K+- and Ca2+-ATPase activities by phosphotetradecavanadate
Fraqueza, Gil; Fuentes, Juan; Krivosudský, Lukáš; Dutta, Saikat; Mal, Sib Sankar; Roller, Alexander; Giester, Gerald; Rompel, Annette; Aureliano, ManuelPolyoxometalates (POMs) are promising inorganic inhibitors for P-type ATPases. The experimental models used to study the effects of POMs on these ATPases are usually in vitro models using vesicles from several membrane sources. Very recently, some polyoxotungstates, such as the Dawson anion [P2W18O62]6-, were shown to be potent P-type ATPase inhibitors; being active in vitro as well as in ex-vivo. In the presen...
Polyoxometalates as potential next‐generation metallodrugs in the combat agains...
Bijelic, Aleksandar; Aureliano, Manuel; Rompel, AnnettePolyoxometalates (POMs) are an emerging class of inorganic metal oxides, which over the last decades demonstrated promising biological activities by the virtue of their great diversity in structures and properties. They possess high potential for the inhibition of various tumor types; however, their unspecific interactions with biomolecules and toxicity impede their clinical usage. The current focus of the fiel...