GRN and rheumatoid arthritis: Research indicates that PGRN is pivotal in shaping immune reactions and orchestrating inflammatory processes, making PGRN a compelling focus in the study of the underlying causes of asthma.[16] Beyond asthma, the role of PGRN has been explored in depth in various other inflammatory diseases, including rheumatoid arthritis, inflammatory bowel disease, and disorders related to neurodegeneration.[17] In these contexts, PGRN has demonstrated both pro‐inflammatory and anti‐inflammatory activity, underscoring its multifaceted and context‐specific role in immune modulation.