The horror of cancer makes many people talk about cancer, especially the middle and late stage cancer, which has almost no possibility of cure.
Is it contagious for such a serious disease? In response, scientists conducted crazy experiments to inject cancer cells into living people, and the results were unexpected.
What is cancer?
Many people only know the horror of cancer and don't know what it is.
Cancer, also known as tumor, is a disease caused by the abnormal proliferation of tissue cells, which is not infected by a foreign virus, but by the "cancer cells" in the body.
For various reasons, cells in the body may grow abnormally, and some of them may mutate, also known as "cancer cells".
Cancer cells not only continue to divide and proliferate, but also move to other places in the body's circulatory system, which means that when cancer cells appear in one part of the body, they may also appear in other parts.
When the cancer cells have not metastasized to other parts of the body, it is called benign tumor, and vice versa, it is malignant tumor, and the difference between the two lies in the difficulty of treatment.
Malignant tumors require treatment in many areas and are naturally difficult to treat, while benign tumors are less difficult to treat and can even be cured with active cooperation.
There are many factors that cause cancer, and the most probable one is smoking. Some data show that 22% of cancer patients are caused by smoking, which is twice as many as obesity, diet and alcohol consumption combined.
In the data, smokers include smokers and second-hand smokers, so it seems that whether for their own sake or for the sake of those around them, they should not smoke.
It is worth mentioning that cancer can be inherited in a specific way, and only a very small percentage of uncommon tumors are inherited.
And the so-called heredity does not make the next generation develop the disease directly, but the probability of the next generation contracting cancer in the previous generation increases compared to other normal people.
There is no need to worry that this cancer will basically not occur in the next generation as long as one pays attention to good lifestyle habits.
Since cancer can be inherited, is it contagious?
Since cancer develops by abnormal cell division leading to mutation, is it actually contagious?
One scientist in the last century used paranoid human experiments to demonstrate the multiple possibilities of cancer cells in order to verify whether cancer cells are contagious.
The name of this scientist is Southam.
In 1951, due to the torture of cancer, a black woman named Hela unfortunately died, it died before donating her body to the scientific community, hoping that scientists can use her body to research the way to fight cancer.
After getting the remains, scientists extracted cancer cells from Hela's body and named them Hela cells, which are lesions of Hela's cells in the cervix.
When the scientists placed the Hela cells in the vessels, the Hela cells showed their strong proliferation ability and surprisingly reached a terrifying number in a short period of time.
This infinite proliferation method makes scientists creepy, if it is still based on its infinite proliferation, then the world will not become the world of Hela cells.
Considering the limited technical conditions at that time, the scientists decided to seal it and do research later.
A few years later Southam, a leader in biology, began human experiments using the Hela virus.
Previously, Southam found that the cancer cells spread and died within a short time after injecting the virus into mice.
Sotham hastily concluded that for animals, human cancer cells can spread in the body, what about humans?
After all, there are many differences between the bodies of humans and mice, and no one knows the results without human experimentation.
Sotham had terrible thoughts sprouting up in the middle of his mind.
Because they dare not disclose their own experiments, in the choice of objects, Southam chose their most familiar patients, these patients know their own situation very well, using patients for experiments, can not be more appropriate.
Southam then brought the drink with Hela's cancer cells to the patients and urged them to finish it, before Southam left satisfied and monitored the patients' every move in the surveillance.
At first the patients acted as usual and did not change much, which made Sotham wonder why the Hela cells were so active in the Petri dish and why they were silent when they arrived in the human body.
Perhaps the way he delivered the Hela cells was wrong, and Southam again injected saline with Hela virus into the patient's bloodstream in the name of healing.
It was a hit and miss, and the patients soon developed an abnormal state of redness and itching all over their bodies, followed by hard lumps and pain in different parts of their bodies.
Southam knew that none of his patients had ever had this condition before, and it was clearly a sign of cancer cell proliferation.
Southam busily recorded the patient's data, but a few days later, all the symptoms on the patient disappeared, and Southam examined the patient again and found that the Hela cells in the patient's body had disappeared without a trace.
This made Southam feel some resentment; after all, he was experimenting with a patient's body, and there were many uncertainties interfering with it.
After pondering for a long time, Southam still chose to continue to adhere to the human experiment, this time Southam to choose healthy living people to carry out.
These living people are from the prison among the death row inmates, Southam in the recruitment of these volunteers promised that as long as the death row inmates are willing to accept the experiment, regardless of the results, Southam will give the families of the death row inmates a good bonus.
Death row inmates heard about the bounty, have come to sign up, wanting to get the last bit of benefit for their families before they die, more than 130 people signed up, and eventually Southam only selected 65 people.
In order to be able to imitate the population structure of the society, among the people selected by Southam, there are young and old, male and female, gathering all kinds of people for experiments.
The first time the Hela cells were injected into the bodies of the condemned prisoners, the prisoners, like the patients in their own hospitals, developed various degrees of cancerous disease.
Over time, the death row inmates' symptoms soon disappeared and no more cancer cells could be detected in their bodies.
Southam again in other parts of the injection experiment, but the results are the same, and the more injections, the more quickly the condemned prisoners get better, and some are no longer even affected by Hela cells.
At the end of the experiment, Southam finally concluded that cancer cells cannot spread from body to body.
It was also found later that the Hela cells in the mice that had previously experimented on themselves did not continue to multiply.
This means that the mice were killed by Hela cells, not by the proliferation of Hela cells that caused the cancer to die, and that the cancer cells likewise cannot spread in the animal.
In the scientific community purge, Southam also went to jail, well before going to jail to finish his experiments, and wrote a long paper.
Why are cancer cells not contagious?
In fact, the principle that cancer cells are not contagious is very simple. Each human cell has a unique DNA, which is equivalent to a person's identity and would not work elsewhere.
When someone else's cancer cells enter their body, their own DNA appears to be unable to match and they will reject them, and the cancer cells will be killed by the body's immune cells as dead foreign viruses, and they will not be able to spread in other people's bodies.
But such cancer cells are deadly in one's own body because one's own immune cells cannot recognize these diseased cells and cannot make the next move.
Therefore, clinical treatment is extremely difficult and doctors are unable to achieve a cure by stimulating their own immune cells.
If medication is taken, it can also harm the normally dividing cells in the body and affect human health.
The management of cancer has long been a challenge for medical students, although today there are a variety of treatments available, including, chemotherapy, surgical excision, radiation therapy, gene therapy, and more.
The vast majority of treatments can only inhibit the growth of cancer cells, and the expensive drugs make it impossible for the general population to withstand the prolonged consumption.
We hope that in the future there will be more means of treating cancer to achieve a one-time cure and put cancer patients out of pain.