At present, the commonly used drugs for RA therapy are glucocorticoids (GCs), non‐steroidal anti‐inflammatory drugs (NSAIDs), disease‐modifying anti‐rheumatic drugs (DMARDs), and biological agents like tumor necrosis factor (TNF) inhibitors.[4] However, traditional drugs for RA usually relieve symptoms only by reducing pain and inflammation and cannot eliminate the cause—so the effect of these drugs is not ideal. Here, TNF is linked to rheumatoid arthritis.