IMMUNOLOGY

Detailed explanation-1: -Some cells of the immune system can recognise cancer cells as abnormal and kill them. But this may not be enough to get rid of a cancer altogether. Some treatments aim to use the immune system to fight cancer.

Detailed explanation-2: -Cancer cells must evade the immune system to grow and spread. One way they do so is by presenting proteins on their surfaces that dampen the ability of immune cells to kill them. A type of cancer therapy called immune checkpoint inhibition blocks the interaction of these proteins with immune cells.

Detailed explanation-3: -The main reason the human body is unable to fight cancer is because it cannot recognize it. This is because cancer cells consist of the patient’s own DNA, which the body’s immune system recognizes as natural.

Detailed explanation-4: -There isn’t one cure for cancer. A cure means that the cancer has gone away with treatment, no more treatment is needed, and the cancer is not expected to come back. It’s rare that a doctor can be sure that cancer will never come back. In most cases it takes time to know if the cancer might come back.