My Cell Game - Chapter 254
Chapter 249 Immune Line of Defense
The macrophage at this moment, like a scout, captured a large group of invaders, analyzed the invader’s information from the invader’s body, and collected samples.
Finally, ten minutes later, all the source cells were swallowed up.
The macrophage discharges a large amount of waste with the vesicles satisfactorily. Near its nucleus, there is a small vesicle that is filled with the characteristic protein of the source cell.
After the players died, the live video source was lost in the live broadcast room. The live video was frozen at the moment when the last player died, and the screen was dim.
Players who watched the excitement chatted for a while in the live broadcast room with a black screen, and then they dispersed. What happened just now was just a thrilling adventure in the eyes of the player, and the heat quickly dissipated.
“E Goes No Return” and others are also resurrected at the spawn point. A large group of pioneers gathered together to recall what happened just now.
Some players are also worried, for fear that macrophages will also attack ordinary players.
However, this worry was quickly eliminated. Occasionally, players encountered macrophages in the wild. The faction symbol on the head of the macrophages also identified the “friend” side, and no macrophages actively attacked the player anymore.
The player naturally judged that the macrophage should be a rebellious white blood cell. It’s also a good choice if you can’t form a team to push down.
Soon, the heat of this episode faded. There are too many new and interesting things in the game world, and there are endless videos that attract players’ attention. The incident of macrophage attack is just a small ripple in the sea, insignificant.
No one realizes that a large-scale crisis is coming.
The macrophages recovered from the violent state, carrying the processed source cell characteristic proteins (now should be called antigens), and hurriedly swam toward the “command center” of the immune defense line.
In the tissues of the human body, in addition to densely packed small capillaries, there is also a ubiquitous duct—lymphatic vessels.
The so-called lymphatic vessels have a certain similarity with capillaries in appearance, and they are all channels for cells to swim. But in terms of function, the two are quite different.
Most of the “civilian” cells that swim in the capillaries are red blood cells and platelets, which are responsible for daily nutrient delivery and blood vessel maintenance.
But what wanders in the lymphatic vessels is the army of cells—lymphocytes!
If the capillaries are regarded as civilian highways, then the lymphatic vessels are military dedicated lines.
A large number of lymphocytes live in the lymphatic vessels and gather through the movement of the lymphatic vessels to form the most critical third line of defense in the human body!
After judging by macrophages, they believe that the invaders this time are not small, the number is unknown, and they will kill red blood cells, which is a great hazard to cell safety. Relying on phagocytes alone is no longer sufficient to deal with the threat.
Therefore, the destination of the macrophage’s trip is a certain lymph node in the lymphatic vessel. It decides to go to the lymph nodes and asks to activate the third line of defense.
In the human body, there are three main lines of immune defense:
The first is the skin and mucous membranes, these are the walls around the human body;
The second is the bactericidal substances and phagocytes in the blood. These are the patrolling police in the cell world.
Macrophages are a type of phagocytic cell, which is the second line of defense.
Under normal circumstances, after encountering an invader, macrophages will hunt down the invader as much as possible, and will not directly activate the third line of defense.
Just as when “sensory objects” were hunting red blood cells at the beginning, macrophages only issued wanted orders for “sensory objects” in a small area, and only a dozen surrounding phagocytes were chasing the source cells.
For the first time, the macrophages judged the “sensible object” as [a mutated ordinary cell], which is similar to the thieves and robbers in the human world. It is enough to hand over to the patrolling police to deal with it.
However, in the process of hunting down the “sensitivity”, the macrophages saw more source cells. These source cells are organized, unknown in number, and extremely threatening.
Therefore, the macrophages changed the judgment, and the source cell was judged as [the foreign invasion army of the cell world].
In this way, relying on patrolling police alone is not enough to counter the invading army. Macrophages need to request the opening of the regular army in the third line of defense.
To request the regular army to take action, there needs to be evidence of an invading army.
The characteristic protein of the source cell extracted by macrophages is the evidence of the invasion of the source cell. In popular terms, this thing is called an antigen.
The better the evidence, the more likely the regular army in the third line of defense will agree to fight and the easier it will be to kill the intruder.
Once the third line of defense is activated, when all-out war starts, unless all the invaders are killed, they will never die!
Moreover, even if the intruders are killed, the army in the third line of defense will still send special sentries to guard against the re-emergence of similar intruders.
The army in the third line of defense is mainly lymphocytes.
They live in the lymph nodes, tonsils, bone marrow and other immune organs, and they are born soldiers.
The lymph nodes in which they live are one of the most important immune organs in the body, which are all over the body.
The lymph node is the front-line command of the third line of defense in the immune defense line, and it is also the place where macrophages are most likely to contact lymphocytes. The two sides often exchange information here.
After swimming for almost half an hour, the macrophages came to the nearest lymph node entrance.
As soon as he entered the entrance, a group of lymphocytes hurriedly passed by. The macrophage hurriedly stopped one of the cells and said, “I need your help in an urgent matter.”
The blocked lymphocytes were very anxious and seemed to be in a hurry: “What are you doing to stop me? I have an urgent task!”
“Aren’t you a T cell? I have an antigen here that you need to deal with.” The macrophage said it was about to spit out the antigen.
“Thank you for your optimism, I am an effector T cell. I have received specific tasks and no longer accept additional tasks. You go find undifferentiated T cells and don’t delay my work!” Leaving hastily.
Seeing that the other party does not accept the task, the macrophages have to go deep into the lymph nodes to find other T cells.
Along the way, lymphocytes that were mobilized in an emergency can be seen everywhere, and various antibodies are produced and urgently transported to the front lines. There is a busy scene throughout the lymph nodes.
Finally, after searching for a while, the macrophage finally saw the T cells that had not yet accepted the task, and it immediately leaned over and stopped one of the T cells.
“Are you looking for something to do with me?” the T cell asked.
“Yes, sir.” Macrophage said: “I have found a dangerous invading army and request a full-scale war against them!”
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