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A little-known arm of the immune system respond to lipids, with a protein called CD1 driving reactions to bee stings, bacteria, and possibly poison ivy MITCH LESLIE For a hiker who unwittingly brushes the leaf of poison ivy, weeks of suffering can start within a few hours, when an itchy red rash appears at the contact site. In the days that follow, blisters erupt and the urge to scratch can become maddening. Even after the blisters begin to burst and crust over, the skin will need days more to heal. Unpleasant encounters with poison ivy and its noxious relatives are common, but they have long posed a biological puzzle. …
摘自《科学》(Science)2026年9月24日,Mitch Leslie。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。