this post was submitted on 16 Sep 2023
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This article is garbage but I'm a molecular biologist and the publication they're talking about is really neat.
The "ELI5 to the point of maybe reducing out the truth" way to explain it is that the researchers can add "flags" to proteins associated with immune responses that make cells pick them up and examine them. This is shown to work for allergins (so say, add a flag to peanut protein and the cells can look at it more closely, go "oh nvm this is fine" and stop freaking out about peanuts) as well as autoimmune diseases (where cells mistake other cells from the same body as potential threats).
It's not nearly to a treatment stage, but tbh this is one of the more exciting approaches I've seen, and I do similar research and thus read a lot of papers like this.
There's a lot of evidence that we are entering a biological "golden age" and we will discover a ton of amazing things very soon. It's worrysome that we still have to deal with instability in other parts of life (climate change, wealth inequality, political polarization) that might slow down the process of turning these discoveries into actual treatments we can use to make lives better...
Still, don't doubt everything you read! A lot of cool stuff is coming, the trick is getting it past the red tape
That would also work for cancer then, wouldn't it? Since the mutated cells hide from the immune system you can mark a few to get the immune system to take a look and realize that shit is happening, or am I oversimplifying too much?
There are immunotherapy treatments for cancer already. Infections and cancer use the immune system the correct way: "tag" the problem cell/virus part with an antibody, make a lot more antibody and flood your body with it to clear the problem cell/virus.
This is the process a vaccine uses. The old vaccine method is to take a bunch of dead bacteria or inactivated virus and put that in your body. Your body should identify it and begin making antibodies against it. If you do get exposed to the disease, your body is full of antibodies which can immediately clear it, rather than letting the infection/cancer work for a few days without much of an immune response.
An autoimmune disease, a body "tags" its own cells. Then the immune system invades the person's own tissue.
I have celiac disease. If I eat gluten, the enzymes I use to digest gluten become tagged. Unfortunately, humans make one gluten enzyme (TG2) that's found everywhere in the body. A third of celiacs will have their thyroid tissue affected if they consume gluten.
One particular antibody, IgE, is known for extreme reactions to antigens. These are the ones known for the immediate and life-threatening allergies (peanuts, shellfish, bees, wheat).
This new stuff appears to be a way to tag antibodies or antigens or memory T cells (they hold the "blueprints" to make antibodies really quickly after your natural antibodies go away) and have the immune system "re-evaluate" the antigen. I'm guessing from the post above and a little of the article. I haven't heard of this process in the body before.
Cancer itself is not autoimmune (autoimmune inflammation can make it more likely to happen, but tumors don't form directly through autoimmune mechanisms). So the first pathway used for normal vaccination is what's needed. The difficulty lies in knowing something in each specific cancer that would make a good antibody target. It is a person's own cells and DNA, so a lot of care has to be taken to find an appropriate antigen. Immunotherapy treatments that exist are really specific to certain types of cancer. They have much less severe side effects than radiotherapy and chemotherapy.