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韩春雨:已有6、7家实验室重复出关键环节

2016-08-12 08:55:54   观察者网

质疑声的高潮随着澳大利亚国立大学基因学家盖坦·布尔焦(Gaetan Burgio)的倒戈而到来。布尔焦在7月15日赞许过NgAgo,但到了29日,实验的进一步结果出来后,布尔焦表示并无严格意义上的证据显示韩春雨的NgAgo技术有基因编辑的迹象,并且要求韩春雨公开所有原始数据和实验条件。此举得到了西班牙、美国科学家的响应。直至8月2日,《自然•生物技术》发言人表示“认真对待”、“慎重考虑”、 “将按照既定流程来调查此事”。

针对诸多实验室无法重复的原因,韩春雨告诉澎湃新闻,80%是因为实验被污染,剩下的是实验者的操作技术不过关,并表示,他之前所说实验需要“高超手艺”,指的是对实验者需要一定门槛,必须很好地训练过。

《自然》杂志8月8日的报道显示,韩春雨在接受采访时表示,他在实验中发现,只有在他们实验室培养的细胞中运用NgAgo系统才有效,在买来的细胞中无法重复成功。后来,韩春雨发现重复失败,可能出在购买的实验用细胞受到了支原体污染。他认为,很多其他的实验是直接由研究生操作,他们做实验时可能太快,忽略了一些受到污染的试剂。

但这个解释并没有被Jan Winter认可。Jan Winter是来自德国癌症研究中心的博士生,没能重复成功。对于韩春雨“重复实验失败是因为细胞污染”的解释,Jan Winter认为:“这不是科学家无法重复实验的问题所在”。

但在8月10日,韩春雨在接受采访时变得更为严谨:“其他科学家无法重复的原因,我们也在研究。但必须要作出科学的结论来才行,不能随口一说。比如用污染的细胞和不污染的细胞对比,以及这些污染到底是什么。”

公布更多实验细节等于“韩寒公布手稿”?

面对所有质疑,韩春雨自信,并近乎执拗地相信,他只需要按照科学的流程去回应目前所有的质疑,而不需要通过媒体发声。尽管目前质疑声来势凶猛,他仍觉得质疑他的科学家没有采用科学的方式。

韩春雨认为,唯一正规的学术质疑方式,是质疑者把实验过程和数据写成论文投稿给《自然·生物技术》,期刊接收了,转给原作者,原作者才会做出回应,以更多的实验过程和数据应对质疑。

8月2日上午,当有媒体报道《自然·生物技术》发言人“将按照既定流程来调查此事”的声明时,韩春雨正在实验室里。韩春雨说,他收到了来自期刊的邮件,内容和媒体公布的一样。

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