So this is true, and these are both points that are often missed when discussing these issues. But at the same time, it is worth noting that A) a variety of the studies listed were with people rather than animal models and B) while cancer is better thought of as a collection of distinct diseases, that doesn’t stop there from being treatments that work for a large variety of different cancers. For instance, many forms of chemotherapy target cells which are dividing, which since that’s a common property of cancers, often manages to hit on a large number of cancer types. Similarly, we can classify cancers in some detail, and large classes of cancers often have the same or similar properties.
Repeat after me: “Cancer is not a single disease, and mice are not humans”.
So this is true, and these are both points that are often missed when discussing these issues. But at the same time, it is worth noting that A) a variety of the studies listed were with people rather than animal models and B) while cancer is better thought of as a collection of distinct diseases, that doesn’t stop there from being treatments that work for a large variety of different cancers. For instance, many forms of chemotherapy target cells which are dividing, which since that’s a common property of cancers, often manages to hit on a large number of cancer types. Similarly, we can classify cancers in some detail, and large classes of cancers often have the same or similar properties.