ZC3H12A and Miyoshi myopathy: Interestingly, when ARP-1 cells were cocultured with D141N-mutant MCPIP1 Mφs, more MM cells underwent apoptosis than when these cells were cocultured with wild-type MCPIP1 Mφs, and the apoptosis rates were as high as those when the cells were cocultured with Mφs transfected with the lentivirus vector.