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Programmed death-ligand 1 (PD-L1) is an immune checkpoint molecule that negatively regulates anti-tumor immunity. Recent reports indicate that anti-cancer treatments, such as radiation therapy, increase PD-L1 expression on the surface of tumor cells. We previously reported that the nuclear transport receptor karyopherin-β1 (KPNB1) is involved in radiation-increased PD-L1 expression on head-and-neck squamous cell carcinoma cells. However, the mechanisms underlying KPNB1-mediated, radiation-increased PD-L1 expression remain unknown.

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How to Choose the Best Cot For Newborns The cot will be the baby's sleeping place until he or attains the age of four. You want it to be sturdy, comfortable and safe. Make sure the mattress is free of any gaps, as they could pose an issue for babies who are suffocated. Also look for a convertible cot. Single Cot The OEX Ultralite foldable cot is among the lightest option