Chlorpromazine activates cGAS-STING signaling and reprograms the immune response in glioblastoma. (PubMed, Front Immunol)
We demonstrate that CPZ, alone or in combination with temozolomide (TMZ), the current standard of care, activates the cGAS-STING signaling pathway, thus promoting anti-tumor immune responses. This study uncovers that CPZ exerts a previously unrecognized anti-cancer immunomodulatory activity, remodeling the immune microenvironment and enhancing the anti-tumor immune response. By overcoming TMZ resistance, CPZ not only exerts a direct anti-neoplastic effect, but also sensitizes GBM cells to standard therapy.