RPUSD1 enhances the expression of eIF4E through RluA catalytic domain, activates PI3K/AKT signaling pathway, and promotes the cell proliferation and invasion in non-small cell lung cancer.

Summary: Scientists have identified a protein called RPUSD1 as a key driver of Non-Small Cell Lung Cancer (NSCLC). Acting like a fuel injector for tumors, RPUSD1 uses a specific part of its structure (the RluA domain) to protect genetic instructions known as eIF4E. This protection increases levels of a protein that triggers a chain reaction, ultimately activating the PI3K/AKT signaling pathway. This "switched on" pathway causes cancer cells to multiply rapidly and invade surrounding tissue. Understanding this mechanism reveals RPUSD1 as a potential target for stopping lung cancer progression.