Health Problems

Izo

Tranny Chaser
22,979
35,967
They do adapt and some of the tumor cells escape the neo-antigens, of course. The therapies still show better results than other therapies though, don't they?
I'm no oncologist. I guess it adds a few years. Just saying it's no permament cure.
 

Gurgeh

Golden Baronet of the Realm
5,236
14,389
Also a lot, maybe even most, are lifestyle related. Resetting the cancer and changing lifestyle could be a permanent cure.
 

Izo

Tranny Chaser
22,979
35,967
It’s probably like smoking, rule of thumb. Decline rate in lung function trends like your non-smoking peers when you are equally many smoking years smoke free, but the smoking induced loss is not recovered. Replace smoking with cancer + CAR. I pulled that last part out of my ass for your pleasure.
 

sleevedraw

Revolver Ocelot
<Bronze Donator>
2,374
6,947
The exciting thing about CAR-T is that it (academically, at least) enables what needs to happen for cancer to be cured - i.e., a 100% kill rate where treatment (whether that's surgery or chemo) mops up 99.99% of the cancer, and the immune system is responsible for mopping up the last .01% on its own.

Highly anaplastic cancer cells often have ways of being able to evade detection. One of the big ways is via downregulation of MHC-1 (basically a fingerprint receptor that the immune system can use to determine if a cell is acting normally). CAR-T cells can still glom on thanks to their engineered receptor, even if the cancer cells downregulate MHC. This works really well for blood cancers because they are all clonal - a plasma cell in the marrow becomes abnormal and churns out a bunch of cells that all have the same genetic makeup. So if that cancer's main immune escape mechanism is MHC-1 downregulation, it has no effect on the CAR-T cells. Solid tumors are a harder target because the cells often have different mutations in different cells despite coming from one contiguous area.

The two main limitations of CAR are currently:
1) The chance that the CAR cells themselves may become cancerous (although that risk appears to be low...thus far)
2) That they won't persist long enough in the body to complete the 100% killing blow - the current focus is trying to find ways to make them more persistent
 
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Kajiimagi

<Aristocrat╭ರ_•́>
4,882
9,030
The exciting thing about CAR-T is that it (academically, at least) enables what needs to happen for cancer to be cured - i.e., a 100% kill rate where treatment (whether that's surgery or chemo) mops up 99.99% of the cancer, and the immune system is responsible for mopping up the last .01% on its own.

Highly anaplastic cancer cells often have ways of being able to evade detection. One of the big ways is via downregulation of MHC-1 (basically a fingerprint receptor that the immune system can use to determine if a cell is acting normally). CAR-T cells can still glom on thanks to their engineered receptor, even if the cancer cells downregulate MHC. This works really well for blood cancers because they are all clonal - a plasma cell in the marrow becomes abnormal and churns out a bunch of cells that all have the same genetic makeup. So if that cancer's main immune escape mechanism is MHC-1 downregulation, it has no effect on the CAR-T cells. Solid tumors are a harder target because the cells often have different mutations in different cells despite coming from one contiguous area.

The two main limitations of CAR are currently:
1) The chance that the CAR cells themselves may become cancerous (although that risk appears to be low...thus far)
2) That they won't persist long enough in the body to complete the 100% killing blow - the current focus is trying to find ways to make them more persistent
I really hope not to face something like that again as my screenings have been all clear. One good thing was my new Chemo Oncologist said that if it should come back they have ways to attack it that do not require surgery.
 

Noodleface

A Mod Real Quick
39,501
18,063
Mounjaro increased to 5mg and off all pills except metformin which I'm happy with. Gonna see if I can really lower my a1c now.
 
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