KLF4 and pachyonychia congenita: Following experiments revealed the association between BCR and the expression of AR, ERα, Sox2, CRP, and Her2 as well as the association between CSS and the expression of AR, Oct1, TRIM36, Sox2, Klf4, c-Myc, and ERα in patients with metastatic PC using laser microdissection technique (LMD) [107].