Also, bone marrow (BM) cells can be recruited during tumor- and cytokine-induced neoangiogenesis, giving rise to cells morphologically resembling pericytes and expressing the pericyte marker chondroitin sulfate proteoglycan 4/neural glial antigen 2 (NG2; Rajantie et al., 2004; Ziegelhoeffer et al., 2004; Song et al., 2005; Lamagna and Bergers, 2006). The gene discussed is CSPG4; the disease is neoplasm.