- Liittynyt
- 19.10.2016
- Viestejä
- 4 923
Lääketieteen tekniikan tohtori Steven Salzberg kuvaa mekanismia näin:Minkälaista geeniterapiaa nämä nykyiset rokotteet ovat? Miten ne muuttavat ihmisen geenejä?
“Will a COVID-19 vaccine alter my DNA? No. COVID-19 vaccines do not change or interact with your DNA in any way. Both mRNA and viral vector COVID-19 vaccines deliver instructions (genetic material) to our cells to start building protection against the virus that causes COVID-19. However, the material never enters the nucleus of the cell, which is where our DNA is kept.
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Okay, take a deep breath and we’ll dive in. Whenever your body is invaded by a foreign cell–whether it’s a bacteria, a virus, a fungus, or some other pathogen–your immune system starts selecting from among millions of specialized proteins called antibodies, each one a little different. The way it does this is really rather extraordinary: many little pieces of your DNA are cut and pasted together, in millions of combinations, each making a different antibody. Eventually, one of these antibodies “recognizes” the pathogen (by binding to it).
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What’s even more amazing is that the successful antibodies are “remembered” by the immune system, in the form of special cells called B-cells that have slightly different DNA! The DNA in these B-cells encodes just the right antibody to recognize the invader–the Covid-19 virus, that is. Once you recover from the infection, some of those immune cells (B-cells and T-cells–it’s complicated) persist in your lymph nodes, constantly looking for any reappearance of the virus.
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So back to our original question: does the Covid-19 vaccine change your DNA? Not directly, no. But yes, thanks to your own immune system, the overall mixture of DNA in your body is a tiny bit altered after you get any vaccine. Your DNA is also changed every time you recover from an infection, including the common cold. But the only change is in the DNA of a tiny number of immune cells, which hang around as guardians against future infections. And that’s a good thing. ” (1)
Eli lyhyt vastaus: DNA-muutoksia voi tapahtua immuunipuolustukseen osallistuvissa soluissa, ja yleisesti ottaen immuunijärjestelmän suhteen tämä on hyvä ja äärimmäisen tärkeä mekanismi.