'Inmiced' lol! Thanks for keeping the titles accurate, so important especially with cancer research results. Happy holidays and I really enjoyed reading the quote on your profile https://news.ycombinator.com/user?id=dang
idk why I see so many comments like this on the medical threads of HN lately. Laboratory mice are close enough to us to do testing on and have provided reliable results throughout their use. A basic Wikipedia search shows references for all of those claims and more: https://en.wikipedia.org/wiki/Laboratory_mouse
That's because mouse models suck for many diseases. Cancer very much included, for two reasons:
1. Mice _love_ to get cancer naturally. If you have 100 mice, it's quite likely that around 20 of them will die within one year of cancer. This makes it difficult to extract useful signals. BTW, that's why if you see a study that a "chemical X results in cancer in mice", you should take that with a grain of salt.
2. Mice are small, so tumors are necessarily small too, with several orders of magnitude fewer cells than typical human tumors. So many drugs can just cure mice of cancer entirely, by killing cancerous cells too quickly to allow them to evolve resistance.
It’s a common trope in the field that we’ve already cured cancer in mice. They are similar enough to be a useful model for study. However, they are still quite different to the point where you never quite know how treatments will react… especially in cancer.
The biggest issue is that the mice we use for research typically have no or a highly depleted immune system. One of the biggest breakthroughs in the cancer field (IMO) is the development of humanized mice. These are mice that have had their immune system genes replaced with the human versions of these genes.
This is incredibly important for work like this where you’re studying cancer cell-immune cell interactions.
dang|2 years ago
sytse|2 years ago
oooyay|2 years ago
cyberax|2 years ago
1. Mice _love_ to get cancer naturally. If you have 100 mice, it's quite likely that around 20 of them will die within one year of cancer. This makes it difficult to extract useful signals. BTW, that's why if you see a study that a "chemical X results in cancer in mice", you should take that with a grain of salt.
2. Mice are small, so tumors are necessarily small too, with several orders of magnitude fewer cells than typical human tumors. So many drugs can just cure mice of cancer entirely, by killing cancerous cells too quickly to allow them to evolve resistance.
mbreese|2 years ago
The biggest issue is that the mice we use for research typically have no or a highly depleted immune system. One of the biggest breakthroughs in the cancer field (IMO) is the development of humanized mice. These are mice that have had their immune system genes replaced with the human versions of these genes.
This is incredibly important for work like this where you’re studying cancer cell-immune cell interactions.
lossolo|2 years ago
SV_BubbleTime|2 years ago
mjfl|2 years ago
adamredwoods|2 years ago