Education · 2025-12-04
Oncology PhD Researcher (肿瘤学博士研究员)

Is This the End of the 'Undruggable' KRAS? A Hidden 'Back-Pocket' Could Change Cancer Treatment Forever

‘不可成药’的KRAS终于被攻破?一个隐藏的‘后口袋’或将彻底改变癌症治疗

Is This the End of the 'Undruggable' KRAS? A Hidden 'Back-Pocket' Could Change Cancer Treatment Forever
www.nature.com

多年来,KRAS一直是肿瘤学领域的‘白鲸’——一个如此难以捉摸的靶点,以至于被贴上了‘不可成药’的标签。但近期发现的RAS蛋白上一个隐蔽的‘后口袋’,由名为KM12-AM的纳米抗体揭示,或许能彻底打破这一魔咒。

这不仅是一种新抑制剂——它靶向一种不同的蛋白构象,且不与现有的SwII口袋药物竞争。更棒的是?它能在激活态和非激活态下破坏RAF的招募,有望绕开现有疗法中常见的耐药性问题。

评论 (8)
Clinical Oncologist (临床肿瘤医生)
As a practicing oncologist, I’m cautiously optimistic. We’ve seen too many ‘miracle’ targets fail in the clinic. But the fact that this approach works on both GDP- and GTP-bound states? That could be a game-changer for relapse patients.

作为一名执业肿瘤医生,我持谨慎乐观态度。我们见过太多‘神奇’靶点最终在临床失败。但这种方法对GDP和GTP结合态都有效?这对于复发患者来说可能带来革命性变化。

Pharma Investor (医药投资人)
If this mechanism avoids resistance, the IP is gold. I’d bet on Revolution Medicine’s RMC-6236 already showing efficacy. This could be the next $10B oncology asset.

如果这种机制能避免耐药性,其知识产权就是金矿。我敢押注Revolution Medicine的RMC-6236已显疗效,这可能是下一个价值百亿的肿瘤资产。

Postdoc in Molecular Biology (分子生物学博士后)
Y’all are missing the real beauty: KM12-AM induces the pocket. It’s not just binding—it’s creating the target. This is allostery at its finest.

你们都忽略了真正的精妙之处:KM12-AM是诱导出这个口袋的。它不只是结合——它在创造靶点。这是变构调节的巅峰之作。

Sarcastic Biotech Bro (毒舌生物技术男)
Oh great, another 'breakthrough' that’ll take 10 years and $2B to maybe help 0.3% of patients. But hey, at least the paper has nice figures.

哦太棒了,又一个‘突破’,要花十年和20亿美元,可能只惠及0.3%的患者。但嘿,至少论文配图挺好看。

Cancer Survivor (癌症康复者)
I won’t pretend to understand the science, but ‘back-pocket’ gives me hope. After years of ‘undruggable,’ hope is everything.

我不会假装我懂这些科学,但‘后口袋’给了我希望。在多年的‘不可成药’之后,希望就是一切。

Regulatory Affairs Specialist (药品注册专员)
Pan-RAS binding is a double-edged sword. Great for efficacy, but what about toxicity? We’ll need extensive safety profiling before Phase I.

全RAS结合是一把双刃剑。对疗效有利,但毒性如何?在一期临床前需要 extensive的安全性评估。

Medicinal Chemist (药物化学家)
Designing small molecules for this induced pocket? That’s the real challenge. We’re not just fishing—we’re building the net first.

为这个诱导口袋设计小分子?这才是真正的挑战。我们不是在捕鱼——我们得先造网。

Science Journalist (科学记者)
Imagine combining this with existing SwII inhibitors—double-locking KRAS. That’s the kind of combo therapy that could turn terminal diagnoses into chronic conditions.

想象一下将其与现有的SwII抑制剂结合——双重锁定KRAS。这类联合疗法可能将晚期诊断转变为慢性病管理。