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Alendronic Acid as Ionic Liquid: New Perspective on Osteosarcoma

Faculdade de Medicina Dentária, U. Porto, Rua Dr. Manuel Pereira da Silva, 4200-393 Porto, Portugal
LAQV-REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
UCIBIO-REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
ESS—Escola Superior de Saúde, Instituto Politécnico do Porto, R. Dr. António Bernardino de Almeida 400, 4200-072 Porto, Portugal
Instituto Politécnico de Viana do Castelo, Escola Superior de Saúde, Rua D. Moisés Alves Pinho 190, 4900-314 Viana do Castelo, Portugal
Author to whom correspondence should be addressed.
These authors contributed equally to the article.
Pharmaceutics 2020, 12(3), 293;
Received: 31 December 2019 / Revised: 16 March 2020 / Accepted: 16 March 2020 / Published: 24 March 2020
Herein the quantitative synthesis of eight new mono- and dianionic Organic Salts and Ionic Liquids (OSILs) from alendronic acid (ALN) is reported by following two distinct sustainable and straightforward methodologies, according to the type of cation. The prepared ALN-OSILs were characterized by spectroscopic techniques and their solubility in water and biological fluids was determined. An evaluation of the toxicity towards human healthy cells and also human breast, lung and bone (osteosarcoma) cell lines was performed. Globally, it was observed that the monoanionic OSILs showed lower toxicity than the corresponding dianionic structures to all cell types. The highest cytotoxic effect was observed in OSILs containing a [C2OHMIM] cation, in particular [C2OHMIM][ALN]. The latter showed an improvement in IC50 values of ca. three orders of magnitude for the lung and bone cancer cell lines as well as fibroblasts in comparison with ALN. The development of OSILs with high cytotoxicity effect towards the tested cancer cell types, and containing an anti-resorbing molecule such as ALN may represent a promising strategy for the development of new pharmacological tools to be used in those pathological conditions. View Full-Text
Keywords: alendronic acid; Active Pharmaceutical Ingredients; API-OSILs; anticancer drugs; ionic liquids alendronic acid; Active Pharmaceutical Ingredients; API-OSILs; anticancer drugs; ionic liquids
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MDPI and ACS Style

Teixeira, S.; Santos, M.M.; Fernandes, M.H.; Costa-Rodrigues, J.; Branco, L.C. Alendronic Acid as Ionic Liquid: New Perspective on Osteosarcoma. Pharmaceutics 2020, 12, 293.

AMA Style

Teixeira S, Santos MM, Fernandes MH, Costa-Rodrigues J, Branco LC. Alendronic Acid as Ionic Liquid: New Perspective on Osteosarcoma. Pharmaceutics. 2020; 12(3):293.

Chicago/Turabian Style

Teixeira, Sónia, Miguel M. Santos, Maria H. Fernandes, João Costa-Rodrigues, and Luís C. Branco 2020. "Alendronic Acid as Ionic Liquid: New Perspective on Osteosarcoma" Pharmaceutics 12, no. 3: 293.

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