ArticleBiomedicines2024
Influence of Metamizole on Antitumour Activity of Risedronate Sodium in In Vitro Studies on Canine (D-17) and Human (U-2 OS) Osteosarcoma Cell Lines.
Article in Biomedicines, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The availability of metamizole varies greatly around the world. There are countries such as the USA, UK, or Australia where the use of metamizole is completely forbidden, and there are also countries where this drug is available only on prescription (e.g., Greece, Italy, Spain, etc.) and those in which it is sold OTC-over the counter (e.g., most Asian and South American countries). Metamizole, as a drug with a strong analgesic effect, is used as an alternative to other non-steroidal anti-inflammatory drugs, alone or in combination with opioid drugs. Risedronate sodium is a third-generation bisphosphonate commonly used in orthopaedic and metabolic diseases of the musculoskeletal system, including hypercalcemia, postmenopausal osteoporosis, Paget's disease, etc. The aim of this study was to check whether there were any pharmacological interactions between metamizole and risedronate sodium in in vitro studies. Cell viability was assessed using the MTT method, the number of apoptotic cells was assessed using the labelling TUNEL method, and the cell cycle assessment was performed with a flow cytometer and propidium iodide. This was a pilot study, which is why only two cancer cell lines were tested: D-17 of canine osteosarcoma and U-2 OS of human osteosarcoma. Exposure of the canine osteosarcoma cell line to a combination of risedronate sodium (100 µg/mL) and metamizole (50, 5, and 0.5 µg/mL) resulted in the complete abolition of the cytoprotective activity of metamizole. In the human osteosarcoma cell line, the cytotoxic effect of risedronate sodium was entirely eliminated in the presence of 50 µg/mL of metamizole. The cytoprotective and anti-apoptotic effect of metamizole in combination with risedronate sodium in the tested human and canine osteosarcoma cell lines indicates an urgent need for further in vivo studies to confirm or disprove the potential dose-dependent undesirable effect of such a therapy.
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