请对以下一段话的内容进行修剪，使表达更加简洁：Negative feedback is one of the interactions between cells in the body. A cell secretes proteins or other molecules to turn off its own or another cell's activities, which is vital for maintaining homeostasis in the body.
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细胞间的负反馈是通过分泌蛋白质或其他分子来抑制自身或其它细胞的活动，对维持身体稳态至关重要。
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