Besides, the target miRNAs of circ-PTK2 were retrieved from tissue specific circRNA database (http://gb.whu.edu.cn/TSCD/) including miR-638, miR-4690, miR-6742, miR-6749 and miR-6775, however, the detailed mechanism of circ-PTK2 in MM pathogenesis through regulating these target miRNAs was not investigated then. The gene discussed is PTK2; the disease is Miyoshi myopathy.