Cancer is one of the most dangerous diseases but first
       
            what are cancer cells

Cance cells are known to release tiny fluid-filled bags, or vesicles, called exosomes.
These are packed with powerful proteins and other molecules that make tissue conditions more favorable for tumor  progression in numerous ways.
The molecules can remodel the environment of the cancer cells, for instance, and they can insert cancer genes into other cells and signal the immune system not to mount attacks.
These changes make it easier for tumors to grow and for the cancer to invade nearby tissue and spread to other parts of the body.
Cancer invasion and spread is a complex process called metastasis and is the main  reason  for it being such a serious disease.

Structure of the cancer cell

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