Immunohistochemical, Pharmacovigilance, and Omics Analyses Reveal the Involvement of ATP-Sensitive K+ Channel Subunits in Cancers: Role in Drug-Disease Interactions

    April 2023 in “ Frontiers in Pharmacology ”
    Fatima Maqoud, Nicola Zizzo, Marcella Attimonelli, Andrea Tinelli, Giuseppe Passantino, Marina Antonacci, Girolamo Ranieri, Domenico Tricarico
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    TLDR ATP-sensitive K+ channel subunits, particularly Sur2A, play a significant role in various cancers.
    The document investigates the role of ATP-sensitive potassium (KATP) channels, specifically the Sur2A subunit and its accessory subunits Kir6.1 and/or Kir6.2, in various diseases including cancers. The study used immunohistochemical markers to analyze kidney cancer in rats and mammary neoplasia in 23 female dogs. It found that long-term topical treatment with high doses of minoxidil induced cell proliferation and cancer in male rats. The Sur2A subunit showed a marked elevation in renal cancer cells in male rats and in G3 cells of canine breast cancer. The study also found that minoxidil-induced upregulation of the KATP channels can be associated with high cancer risk in some common cancers including breast cancer in humans but not pancreatic cancer. The document concludes that the Sur2A subunit of ATP-sensitive K+ channels plays a significant role in various types of cancers.
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