We all know about the major reflects of cancer, smoking, feady foods, exposure to the sun and heard redity. Now scientists are closing to discovery what tribers cancer are the se level.
Color Clouchy is the genernasic researcher at Ohio State University. Clouchy and his colleagues have a classified gene called micro RNA they control another genes in our bodies. Auto micro-genes have already been found in many types of cancer, so Clouchy’s team previously auto a single type of RNA gene in live mice.The result the mice developed Virginia and f .
Clouchy says the next step is to find treatments that cause the effects of the auto-micro RNA. So far he and his team came up with the way to shut up the activity of very active micro RNA. That’s preventing ..creating cancer itself. The good news is Clouchy says the technology to.. activity of micro RNA already exists. He says the human ..micro RNA has also been found in human lung and breast caused cancer.
答案
We all know about the major risk factors for cancer -- smoking, fatty foods, exposure to the sun and heredity.
Now, scientists are closer to discovering what triggers cancer on a cellular level. Carlo Croce is a genetics researcher at Ohio State University. Croce and his colleges have identified a class of genes called microRNA. They control other genes in our bodies. Altered microRNA genes had already been found in many types of cancer. So Croce's team purposely altered a single type of microRNA gene in lab mice. The result -- the mice developed leukemia and lymphomas.
Croce says the next step is to find treatments that counter the effects of the altered microRNA. So far, he and his team have come up with a way to shut off the activity of the very active microRNA, thus preventing it from creating cancer cells.
The good news is Croce says the technology to manipulate the activity of microRNA already exists. Besides human leukemias and lymphomas, microRNA genes also have been found in human lung, breast and colon cancers.
fatty: [ 'fæti ] a. 脂肪的,含脂肪的,脂肪状的
heredity n.遗传, 形质遗传
trigger vt.引发, 引起, 触发n.板机
cellular adj.细胞的
genetics n.遗传学
leukemia n.白血病
lymphoma n.[医]淋巴瘤
manipulate: [ mə'nipjuleit ] v. 操纵,利用,假造[计算机] 操作
lung/breast/colon cancer n.肺癌/乳腺癌/结肠癌
众所周知，主要的致癌因素包括抽烟、高脂肪类食物、太阳直晒以及遗传。
目前，科学家们更进一步发现导致细胞级的致癌因素。Carlo Croce是俄亥俄州立大学的遗传学研究专家。他和同事确立了一种新的基因种类并命为微RNA。这类基因控制着我们体内的其它基因。变异的微RNA已经在很多种癌症患者身上被发现。所以Croce团队有意使实验老鼠身上的某种单一微RNA基因产生变异。结果是这些老鼠患上了白血病和肿瘤。
Croce称下一步就是要发现抵抗这种变异微RNA的影响的治疗办法。到目前为止，他和他的团队已经发现一种方法来消灭这种非常活跃的微RNA的活性从而阻止其生成癌细胞。
Croce说令人振奋的消息是能够操纵这种微RNA的活性的技术已经出现了。除了人类的白血病和肿瘤，微RNA也已经被发现出现在人类的肺癌、乳腺癌以及结肠癌中。