Hidden “Trade Winds” Inside Cells Could Explain Cancer Spread
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Researchers at Oregon Health & Science University discovered a hidden 'trade wind' system inside cells that rapidly moves proteins, challenging long-held ideas about cell movement and cancer spread. The findings reveal that cells generate directed fluid flows to transport proteins to areas where movement and repair occur.
Researchers at Oregon Health & Science University have identified a previously unknown system inside cells that works like internal 'trade winds,' rapidly carrying essential proteins to the cell's leading edge. This discovery challenges long-standing ideas about how proteins move within cells. The team found that cells actively generate directed fluid flows that push key proteins forward, rather than relying on random diffusion. These flows occur within a specialized region at the cell's front, separated from the rest of the cell by an actin-myosin condensate barrier. The discovery was made using a modified fluorescence technique that allowed the researchers to track the movement of proteins within cells. The findings have implications for understanding cell movement, cancer spread, and wound healing.
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