New Immune Cells:
Oxidocytes:
Referring to their weapon of choice, chemical warfare. These immune cells have feelers with multiple individual specializations. Some feelers are well-adapted for viruses, some are for bacterial colonies and their biofilms and the last type of feeler is for multicellular parasites.
These feelers are tipped with hardened, crystalline melanin spears. At the tip of the spear, there is a little compartment with an intentional fragility. It is by design so it could inject an iron-based poison that will continue to degrade the cell/s of the invader until the invader is either killed by the injected ferritin-bound iron ions or killed by the next cell, the sister cell of this one.
How these sister cells follow the targets of Oxidocytes is because the feelers of Oxidocytes detach and are embedded in the invader. Once detached, a special chemical trail is secreted from a sack in the detachment area. How decayed the trail is on one side tells the sister cells and the other Oxidocytes that the invader went the other way.
Atterocytes:
From the Latin word attero, meaning fray. This cell is geared for war, literally. Its feelers are not detachable, nor do they have any intentional weak spots. They are designed to look and work like really sharp knives made of the same hardened and crystalline melanin as the Oxidocytes. When it reaches a target because of the chemical trail left by an Oxidocyte feeler, the target is flayed alive, layer by layer, until it is dead. Now, consider that hundreds would be swarming the target at any given moment... You see the problem yet?
Latrocytes:
From the Latin word latro, meaning scavenger. These cells are everywhere in the body, ready to deal with the aftermath of a battle. When an Oxidocyte chemical trail is detected, it follows it at a slower rate such that it reaches the battle sight after the battle is over. Once it arrives, it scopes up any remaining ferric poison and feelers to recycle them and give the materials for new Oxidocytes.
The chemical trail is compatible with the kidneys as they can remove it once it degrades for long enough.
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For now, Henryk implemented only these ones. There are some more within his plan for a more robust immune system. Wait for when he needs them. Trust me, their interactions will interest you.
By the way, these cells, and the ones that were not shown yet, are not following any other cells' instructions about what and who to fight. If a cell does not have the right marker/receptor, it is killed. That means, as one guessed, no HIV or cancer for the rest of this guy's life.
Why that works is because HIV destroys the helper T cells of our immune systems. Those helper T cells regulate other immune responses, practically acting as the control center of the immune system. Now, the new immune cells do not take directions from said control center and act on their own. Any cell marker/receptor that is not precisely human, like that of a cancer cell since theirs change ever so slightly when they become ones, are destroyed upon detection, no instructions needed.
This way, even if the virus responsible for HIV invades and successfully destroys Henryk's helper T cells, the common diseases and illnesses that try to take advantage are still under control. With enough time, the body would be wrecked but would clear all HIV virus cells, restoring helper T cell count after some recovery.
No, the introduction of these cells does not mean replacing the current immune system. The are meant to compliment it. This way, something would need to destroy both immune systems to successfully produce HIV-like symptoms, which is made several times harder than it should be since these cells are smaller than needed to act as breeding grounds for viruses and also do not have the receptors that allow most things to pass through their membranes. HIV, for example, requires a receptor to enter the body, of which the new cells have none.
I will give a full description of each cell once all are introduced into Henryk's immune system, as right now the descriptions are not written fully. Some parts would never make sense before introducing all the new immune cells.
Well then, have patience, ladies and gentlemen.