A friend of mine recently had a pulmonary nodule examined in a unit, which was 1 cm in size and highly suspected of malignancy, and had surgery, which was reported as invasive lung adenocarcinoma in a pathological report. This friend has always been self-disciplined, never eating junk food, not smoking or drinking, and insisting on exercising every day. Therefore, he is very puzzled, why is it me who is sick? How did the cancer cells come about? Many people will wonder, what exactly are cancer cells? How can you get caught up in cancer when you have always maintained a healthy lifestyle?
What is cancer? Simply put, cancer cells are, under the action of various factors, healthy cells become abnormal, and cancer cells are mutant molecules of normal cells in the human body.
The normal body is composed of various organs, tissues, and cells, constituting an organic whole, as the smallest unit, each cell has its role, and grows or dies in an orderly manner. However, under the action of various carcinogenic or pro-cancer factors, some or a certain cells have mutated. Once mutated, there is no normal cell's original characteristics, it becomes abnormal and disorderly growth. This anomaly and disorder is manifested in four aspects:
1. Morphological variation
After normal cells mutate into cancer cells, the morphology becomes more terrible, such as irregular cells, cell nuclei become larger, color deepens after staining, there are abnormal particles in the cell, in short, there are many characteristics, which is why we can find cancer cells through pathological sections, microscopes, and even recognize cancer tissue at a glance under the naked eye.
2. Unlimited proliferation
Cancer cells will change into two, two into four, four into eight without restriction, from the spark of the stars to the original trend, become a new organism that does not follow physiological needs and does not abide by organizational discipline. They grow fast and irregular, have no normal cell function at all, and eventually grow into irregular, different shapes, and no function of the balls of flesh.
3. There are characteristics of infiltration and transfer
These cancer cells will also wander around and lurk, even if the surgery removes it, it will also grow in the original part, or grow from the latent organs, which not only consumes a lot of nutrients from the human body, but also infiltrates the surrounding tissues, destroys the tissue structure and function of normal organs, causes various symptoms, and constantly absorbs the nutrients of normal tissues, and finally "ends up together" with the body.
4. Very powerful
Cancer cells are good at camouflage and will escape the recognition of the body's immune cells, and the immune cells that act as "police" cannot find them and cannot play a clearing function. Cancer cells also connect themselves to "nutrient pipelines", that is, they generate their own new blood vessels and absorb nutrients through these blood vessels. The genome of cancer cells is unstable, it will change 72, and the mutation of genes will lead to continuous resistance to anti-tumor drugs.
In short, cancer cells are not alien species, nor do they enter the body from the external environment, cancer cells are just a part of the cells that defect in normal cells. Only when the scope of these rebel elements is limited, the strength is not strong, and the number is not large, we will eliminate them in time to win the "anti-cancer" war. Once these rebels are powerful and numerous, and fleeing in all directions, it becomes extremely difficult to completely eliminate them.