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1# 饶冠华 3 [5 M1 [ ?) z6 L
) F, N3 Z3 b* M) A. y- M2 w( Z在提出肿瘤异倍体假说之前,Peter Duesberg 也致力于病毒癌基因假说的研究,Peter Duesberg 认为,如果癌基因假说成立的话,那么就应该能找到这样一个癌基因--仅仅是这个癌基因被激活,就能使正常细胞转化为肿瘤细胞。然而在过去的30年(before 2000),他们都没有找到这么一个powerful的癌基因,这使他不得不重新思考肿瘤癌基因假说的正确性。4 ?' m' y9 {& D
+ m' v' e& |3 y; X4 n2 K他在本文最后部分提到了六点oncogene model 或者gene mutation theory解释不了的现象:
0 ^* y7 |8 W( o9 d1 y: i1. Cancer risk grows with age.. k \# Q: P0 [
2. Carcinogens take a very long time to cause cancer.
( L9 f0 q( f9 N; K4 i3. carcinogens, whether or not they cause gene mutations, induce aneuploidy.' c2 ^# x7 T& b. r9 E- K0 g
4. Patterns of aneuploidy are seen in different tumors.
" u, i! }" O3 p$ x% O5. Gratuitous traits do not contribute to the cancer's survival.
2 }& U7 @/ Y- O4 J9 V$ S" j6. cancer cells morph much faster than genes. |
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