41 – So what’s this Immunotherapy all about?

Of course, I’ll roll with it – if Dr Grant says it’s fine, that’s good enough for me.

Immunotherapy is completely different to the more well-known Chemotherapy. The key difference is in the way that they ‘target’ cancer cells.

Here’s my simple understanding:
Our bodies are comprised of literally billions of cells, that provide the complete structure of how we are and how we live eg, nerve cells, blood cells, muscle cells and more. They’re all working 24/7 and can repair themselves if things are going wrong (viruses etc). They can die and duplicate so that new cells replace the dead ones.

Sometimes though, in some people – cell structures can become damaged inside and they start to duplicate uncontrollably, growing as cancerous tumours.

And even worse, they can spread to other parts of the body and begin to grow and develop in or on other organs, known as ‘metastasis’.

And if those two statements are not bad enough, the ‘metastatic’ cancer cells can send signals to our body’s own immune system (antibodies) to stop trying to fight or ‘cure’ them. Which is what makes cancer so scary, because by this step – the cancer is usually incurable.

So, Chemotherapy attempts to reduce the uncontrollable cell-splitting duplications, but unfortunately can and does stop healthy cells from duplicating too. This is why there are generally such severe side-effects associated with this type of treatment.