The Medical Advisor

NK-metabolic therapy (sometimes called NK immunometabolism ) is an emerging concept in cancer immunotherapy that focuses on optimizing the metabolism of Natural Killer Cells so they can function effectively inside the tumor microenvironment. This idea is gaining traction because many tumors defeat immune cells not by hiding antigens, but by starving them metabolically. 1. Why metabolism matters for NK cells NK cells require large amounts of energy to: proliferate produce cytokines (e.g., IFN-γ) release cytotoxic granules (perforin / granzyme) When activated, NK cells increase: glycolysis mitochondrial oxidative phosphorylation (OXPHOS) These metabolic pathways supply ATP and biosynthetic molecules needed for tumor killing. ( Darcy & Roy Press ) However, tumors create a hostile metabolic environment. 2. Tumors metabolically suppress NK cells Cancer cells compete with immune cells for nutrients and release inhibitory metabolites that impair the activity of Natural Killer Cells . Exa...

Abstract Cancer continues to pose a significant global health burden, particularly with the rise of aggressive and treatment-resistant malignancies such as triple-negative breast cancer, pancreatic adenocarcinoma, and glioblastoma. In response to the limitations of current therapies, there is growing interest in the repurposing of antiparasitic agents—specifically fenbendazole, mebendazole, and ivermectin—for oncological applications. This review synthesizes recent preclinical and emerging clinical evidence on the anticancer mechanisms and therapeutic potential of these drugs. Fenbendazole, a benzimidazole compound, demonstrates anticancer activity through microtubule destabilization, cell cycle arrest, and inhibition of glucose metabolism, though its clinical application is challenged by poor solubility and bioavailability. Mebendazole, a structurally related benzimidazole with better human pharmacokinetics, similarly disrupts microtubule function and induces apoptosis, showing effic...

Natural killer (NK) cells, a specific type of white blood cell, are an important component of your innate immune system. Your immune system consists of two different branches — cell-mediated immunity (innate) and humoral immunity (adaptive). When you contract a viral disease, the pathogen enters your body and infects your cells. NK cell for cancer immunotherapy The subsequent disease process involves your cell-mediated immune response, which activates your NK cells, along with chemicals that attract them to the site of infection, where the white blood cells basically chew up and spit out the infected cells. This process clears the virus and rejuvenates the gel-like water inside your cells. During recovery, your humoral immune system kicks in and starts generating antibodies against the virus to help prevent the same kind of disease process and symptoms from occurring again, should you be exposed to the same virus later on. As long as your cell-mediated immune system is activated firs...