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We see cancer in many different ways:
我们对癌症有多种比喻：
as an intruder, a time bomb, a thief, a monster.
一个入侵者；一个定时炸弹；一个小偷；一个怪物。
But our bodies often don't recognize cancer at all.
但是我们的身体经常察觉不出癌症。
Our own immune system sometimes ignores cancer, leaving it free to grow.
有时候，我们的免疫系统会忽视癌症，使得它可以自由生长。
How and why that is was once a mystery.
为何如此，这曾经是一个谜团。
But now we know the answer.
但是现在我们知道了答案。
There is a special kind of cell found in every human body called the T cell.
每个人的身体中都有一个特殊的细胞，叫做T细胞。
Think of the T cell as a soldier, guarding our body against attack.
可以把T细胞想象成为一个士兵，它负责保护我们的身体以免受到攻击。
When an enemy is detected, a virus say, or bacteria,
当发现敌人--无论是病毒还是细菌时，
T cells rush to the site and destroy it.
T细胞就会赶到，并且消灭它。
But cancer, it turns out, has devised ways to turn off the normally vigilant T cells.
但是癌症，已经设计出一套方案，来躲过这些通常很警惕的T细胞。
So cancer sneaks right past our defenses.
所以癌症就溜过了我们的防线。
Now we're developing new treatments to turn our T cells back on
现在我们正在研发新的治疗方法，来重新激活我们的T细胞，
to recognize cancer for what it is and destroy it.
以此来识别癌症，并消灭它。
It's an approach called immunotherapy.
这是一种叫做免疫疗法的方法。
Research by Columbia and Weill Cornell has enabled NewYork-Presbyterian to use immunotherapy successfully,
哥伦比亚大学和威尔康奈尔大学的研究，使得纽约长老会成功运用了免疫疗法，
to treat melanoma, lung, kidney and colon cancers.
以此来治疗黑色素瘤、肺癌、肾癌和结肠癌。
We're actively researching its use for many other types of cancer as well.
我们也在积极研究这种疗法在其他癌症中的应用。
We're learning how to use immunotherapy to prevent recurrences of cancer in patients in remission,
我们正在学习如何使用免疫疗法来防止癌症复发，
or even looking into creating a vaccine to prevent cancer from striking in the first place.
或者甚至想要发明一种疫苗来预防癌症。
Unleashing our body's own defenses to cure cancer, that's amazing.
释放我们身体自身的防御能力来治疗癌症，这真的很神奇。
And it's happening right here at NewYork-Presbyterian.
而这一切现在正在纽约长老会发生着。
