In addition, the myosin heavy chain 9 gene was found to promote the migration of synovial fibroblasts in patients with rheumatoid arthritis and protect the nucleus during cell migration in prostate cancer [32, 33], while the knockdown of myosin heavy chain 9 was linked to the invasion and distant metastasis of cancer cells [34, 35]. The gene discussed is MYH9; the disease is rheumatoid arthritis.