Nature:美女科学家STAP干细胞论文伪造“铁证如山”

2014-03-31 佚名 zici.org

小保方睛子表示她制造干细胞的动物是 129 系小鼠,但是最新证据发现这些细胞来自不同的品系。如果这一证据明确,那么这个文章就是彻底地伪造。提供证据的是论文作者之一,干细胞和克隆专家若山照彦。他曾负责对小保方给他的细胞进行在体分化研究。上周论文另一通讯作者Charles Vacanti,公布实验方法,以帮助其他学者重复该研究,但不到一周,若山就公布了他的基因分析结果。 小保方的论文1月30日发

小保方睛子表示她制造干细胞的动物是 129 系小鼠,但是最新证据发现这些细胞来自不同的品系。如果这一证据明确,那么这个文章就是彻底地伪造。提供证据的是论文作者之一,干细胞和克隆专家若山照彦。他曾负责对小保方给他的细胞进行在体分化研究。上周论文另一通讯作者Charles Vacanti,公布实验方法,以帮助其他学者重复该研究,但不到一周,若山就公布了他的基因分析结果。

小保方的论文1月30日发表在《自然》上,提出新的简单诱导干细胞的方法,其两篇论文主要描述了用短时间酸处理成熟细胞就可以诱导出干细胞,这些细胞具有分化为机体其他细胞的能力,他们将这种细胞命名为STAP细胞。

文章发表后很快被发现存在问题,主要是图片重复使用、文字抄袭,这立刻引起小保方单位日本理化研究所的调查。小保方的早期研究,包括她的博士论文都被一一提出质疑。日本理化研究所的调查结果认为小保方的两篇《自然》论文确实存在4个处严重错误。小保方坚持请求发育研究所主任Masatoshi Takeichi不要撤回论文,因为她继续坚持她发表的现象是确定的。这次关于若山的基因测定结果,她现在没有任何回应。

若山决定自己对STAP细胞基因序列进行分析,他说所有检测都是他实验室的常规技术,目前仍没有其他实验室重复,他已经将20份STAP细胞送给其他一些研究机构供他们研究。这些数据数月内不会正式发表。3月25日,若山告诉记者,他初步的基因分析证明小保方给他的STAP细胞和129品系小鼠完全不能符合,这些细胞其实来自另外两个品系B6和129B6F1的杂合子。若山认为这一发现十分令人吃惊。

而这两个无法匹配的细胞系没有在《自然》论文上出现,这一结果显示小方子的论文完全是拼凑的。若山对论文中描述的其他细胞类型进行的基因分析发现,这些细胞是来自129B6F1系,也不是129品系小鼠。若山说理化研究所正在对他的发现进行讨论,但该所新闻发言人说目前不确定细节。

这种情况是否会因为细胞污染导致。德国马普研究所的干细胞学家Hans Schöler认为,虽然他没有看到若山的分析结果,但他自己认为这些论文不应该是伪造。

原始出处:

David Cyranoski. Mismatch alleged in acid-bath stem-cell experiment. Nature, 27 March 2014; doi:10.1038/nature.2014.14946

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    2015-01-26 liye789132251
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    2014-04-02 guoyibin
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    2014-04-01 110

    转载文章,从不备注来源。

    0

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    2014-03-31 221.6.38.38

    咦,之前不是说有望的?最后这结果?老师又要扛不住了。。。。

    0

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日本理化学研究所的发生和再生科学综合研究中心(CDB)17 日从主页的新闻栏中删除了与新型万能细胞“STAP 细胞”论文有关的报道。理研解释称:“鉴于正在就论文疑点展开调查,遂进行了删除。”STAP 细胞论文由小保方晴子等人执笔。该中心正考虑成立独立调查组,对论文的审查工作是否得当展开调查,确定责任归属。 新闻栏通过浅显易懂的形式向公众介绍该中心的科研成果。有关 STAP 细胞论文的报道 1