Here's one of many bits of this article that caught my eye:
https://www.nationalgeographic.com/science/article/the-end-of-inflammation-new-approach-could-treat-dozens-of-diseases
“If you knock out receptors in the macrophages of mice that recognize dying cells, for example, they become incapable of eating up these cells, resulting in a lupus-like disease,” with symptoms such as arthritis and skin rash, says Krönke.
A similar mechanism is at work in older people, says Gilroy. As we age, the body loses a protein that recognizes dying cells; this blocks macrophages’ ability to find and eat debris. Locked in a pro-inflammatory state, these macrophages continue to produce molecules that amplify the inflammatory response early on.
https://www.nationalgeographic.com/science/article/the-end-of-inflammation-new-approach-could-treat-dozens-of-diseases