2015年4月11日 星期六

傳染性癌症：蛤白血症

黃泥多分享了 Understanding Animal Research 的相片。
繼犬菜花跟袋獾面部腫瘤之外，第三種傳染性癌症，蛤白血症。
Understanding Animal Research
2015年4月10日
Selfish shellfish cells cause contagious clam cancer. This clam leukaemia – where their blood, typically clear, fills with cells that make it milky – is transmissible. For a long time, scientists believed a virus was involved. However, a team recently discovered that the thing that transmits the cancer isn’t a virus but the cancer itself. The clam leukaemia is a contagious cancer—an immortal line of selfish shellfish cells that originated in a single individual and somehow gained the ability to survive and multiply in fresh hosts. The disease is associated with a jumping gene, which is more than 15 time more present in infected clams. There are only 2 other forms of this type of transmissible cancer.
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