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白细胞爆炸死亡过程首曝光 - 站长搜索
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白细胞爆炸死亡过程首曝光

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2015-06-18 08:39:05 转载来源: 网络整理/侵权必删

目前,分子生物学家首次拍摄到白血球细胞死亡的过程。当白血球细胞崩溃时,它将吐出较长的水珠结构,布满着分子(如图所示),最终完全分解

目前,分子生物学家首次拍摄到白血球细胞死亡过程。当白血球细胞崩溃时,它将吐出较长的水珠结构,布满着分子(如图所示),最终完全分解。他们认为,这是人体免疫系统对周围感染细胞进行报警的重要部分。

白细胞的爆炸死亡过程首次曝光

研究人员发现白血球细胞死亡过程中释放的长珠结构包含着不同分子,能够响应细胞信号、细胞生长和保养。在白血球细胞死亡过程中其它分子仍保留在内部,是图中显微镜下染色部分。

这项研究表明,单核细胞经历了细胞死亡的三个阶段,首先是膨胀,如图所示,图中左下方细胞出现膨胀。

接下来是细胞爆炸(图中所示),它喷射较长的珠状结构,上面分布着分子,珠状结构长度是细胞自身的8倍以上。

最后的阶段是细胞分裂,当珠状结构向外延伸,之后会分解为较短的部分。图中可以看到在细胞分裂之前较长珠状结构已延伸。

标签: 白细胞 爆炸 死亡 过程 曝光


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