CD34 and neoplasm: Autologous tumour engraftment models combine generation of cancer cell lines by transformation of primary fibroblast or induced pluripotent stem cell (iPSC)‐derived cells in conjunction with human foetal liver CD34+ and autologous foetal thymus tissue engraftment into immunocompromised SCID mice, generating a model referred to as BM, liver, thymus (Hu‐BLT) or humanized mice bearing autologous tumours (Hu‐AT) models.176, 177