BMP6 and ocular melanoma: This is in contrast to previous studies, which have demonstrated that bone cells derived from various skeletal sites including the calvarium (Ecarot-Charrier et al., 1983; Ecarot-Charrier et al., 1988; Moursi et al., 1996; Quarto et al., 2010), mandible (Cooper et al., 1998) and long bones (Stringa et al., 1995; Collignon, Davicco & Barlet, 1997), as well as hypertrophic chondrocytes in the limbs (Descalzi Cancedda et al., 1992; Kirsch et al., 1997) and osteoblastic MC3T3 cells (Quarles et al., 1992; Lian et al., 1997; Wang et al., 1999), mineralize in standard OM lacking BMP6.