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Tuesday, May 25, 2021 6:15:49 PM
Sunshine Biopharma Inc. (OTC:SBFM) just announced breaking news that, "it has elucidated the mechanism of action of Adva-27a, the Company's flagship anticancer drug candidate. Adva-27a has been found to have two activities: (i) evasion of P-glycoprotein, and (ii) inhibition of Topoisomerase II. P-glycoprotein is the most often encountered transmembrane efflux protein responsible for multidrug resistance in over 50% of all cancer types. By escaping the efflux pump of P-glycoprotein, Adva-27a is able to accumulate inside cancer cells and destroy them by inhibiting Topoisomerase II, a DNA unwinding enzyme preferentially used by cancer cells to multiply.
Multidrug resistance is by far the biggest challenge in cancer therapy and P-glycoprotein is the major culprit. A plethora of anticancer drugs that are central to chemotherapeutic regimes are susceptible to the P-glycoprotein efflux activity. Among these are the vinca alkaloids (vinblastine and vincristine), the taxanes (paclitaxel and docetaxel), the anthracyclines (doxorubicin and daunorubicin), the topoisomerase inhibitors (topotecan and etoposide), and the tyrosine kinase inhibitors (dasatinib and gefitinib). Sunshine Biopharma's P-glycoprotein evading small molecule, Adva-27a, represents an effective alternative to all of these drugs.
In addition, it has been recognized that most cancers consist of a heterogeneous population of drug-sensitive and drug-resistant cells. During the course of current chemotherapy regiments, drug-sensitive cells are selectively destroyed and resistant cells become the dominant cancer cell population, leading to recurrence and metastasis. Unlike existing chemotherapy drugs, Adva-27a is able to destroy both populations of cancer cells resulting in more complete eradication of the cancer being treated.
'The implications of this development are vast in the context of cancer therapy as a whole,' said Dr. Steve Slilaty , CEO of Sunshine Biopharma. 'We are excited to soon have a new drug available for cancer sufferers around the world,' he added."
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