What is Paul Ehrlich's side-chain theory?
My side-chain theory posits that the body's cells possess specific 'side-chains,' or receptors, which are capable of binding to toxins. When toxins enter the body, they attach to these receptors. In response, the body produces additional side-chains that are specific to the toxin, which then circulate in the blood as antitoxins. These antitoxins neutralize the invading toxins by binding to them, much like a key fits a lock. This theory explains acquired immunity and provided a framework for understanding how specific antibodies function and how we might develop targeted treatments.
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