علاج السرطان يمكن أن يفقد لكمته عندما يحارب الورم خلايا الـ(تي) أصبحت مُرهقة، لكن الباحثين قد وجدوا طريقة لإبقائهم أطول. Scientists at Memorial Sloan Kettering Cancer Center identified a signaling molecule called MEK that can push T cells to burn through their energy while producing cancer-killing proteins. In animal and laboratory studies, blocking MEK helped the cells conserve energy, survive longer, and remain active even in the harsh environment around tumors.

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