由于那些干细胞来自胎儿，它们本来就是要通过自身繁殖来形成新的人体组织，因此理论上它们具有产生肿瘤的潜在可能。
The theory is that because these stem cells are fetal cells, they are designed to proliferate and give rise to new tissue, which means they have the potential to produce tumors.
使用干细胞技术，由richard r . Berhringer博士带领的德克萨斯州M.D.A nderson肿瘤中心的生殖科学家们利用两只公鼠成功繁殖出雌性和雄性老鼠后代。
Using stem cell technology, reproductive scientists in Texas, led by Dr. Richard r. Berhringer at the M.D. Anderson Cancer Center, have produced male and female mice from two fathers.
但研究表明，尽管受药物干扰，受体仍然可以给肿瘤细胞提供营养支持，从而促进肿瘤细胞生长繁殖。
But it turns out that the receptor, despite interference from the drugs, also helps the cancer cells thrive by helping to assure their food supply.
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