0:01

不吃糖就能让癌细胞挨饿吗?研究人员通过彻底清除每一丝葡萄糖,对结肠癌细胞进行了测试。

0:10

科学家把这些细胞放在无葡萄糖的培养皿里数周,起初,许多细胞因缺少平常的能量来源而挨饿,最终死亡。

0:20

幸存下来的细胞却采取了一个巧妙的办法,停止生长,进入休眠状态,有点像熊熬过冬天时冬眠。

0:31

但这种沉睡也有代价,有害的活性氧在每个细胞内不断累积,就像密闭房间里的烟雾。

0:41

然后,大约一个月后,一些细胞苏醒过来,重新开始增殖,尽管周围仍然完全没有葡萄糖。

0:50

它们的秘密是切换燃料来源,启动线粒体,燃烧脂肪,并构筑更厚的谷胱甘肽防护盾,抵御氧化损伤。

1:00

但关键的转折是:当研究人员给休眠的细胞额外补充抗氧化剂,它们就恢复过来,更容易重新开始生长。

1:10

所以,单靠戒糖无法饿死癌细胞,因为这些细胞会切换燃料来源。

1:16

这是一项实验室研究,所以请咨询你的肿瘤科团队。

End of transcript · 195 words · machine translated

Original transcript (English)

Can you starve cancer by cutting out sugar?

Researchers tested it by stripping every bit of glucose from colon cancer cells.

Scientists kept those cells in a glucose-free dish for weeks, and at first, many starved and died without their usual fuel.

The survivors did something clever instead, shutting down growth and slipping into a dormant state, a bit like a bear hibernating through winter.

But that sleep had a cost, as harmful reactive oxygen piled up inside each cell like smoke in a sealed room.

Then, roughly one month later, some cells woke up and started multiplying again, even though there was still no glucose anywhere.

Their secret was switching fuel, firing up their mitochondria to burn fats and building thicker glutathione shields against oxidative damage.

Here's the twist: when researchers gave the sleeping cells extra antioxidants, they bounced back and started growing again more easily.

So cutting sugar alone won't starve cancer because these cells switch fuels.

This was a lab study, so check with your oncology team.

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