CD34 and hyperplasia: 2012). This protein is an important mediator of cellular trafficking and cellular morphogenesis and at least 75% of CD34+ SVF cells are committed to become APC (Nielsen and McNagny 2008; Church et al. 2014). Hyperplasia in adipose tissues is dependent on the number of CD34+ cells. This was demonstrated in fat tissue transplantation studies where adipose tissue graft survival was dependent on CD34+ cell abundance (Philips et al. 2013). Therefore, a higher number of CD34+ in male PVAT may explain, in part, its higher expansion capacity compared to female PVAT.