The laboratory had already produced more than sixty varieties of artificial composite leukocytes.
But none of them was any good.
Enemy identification, reproduction control, and functional balance—the three major hurdles remained completely unresolved.
Still, they had not been standing still. They had made a little progress on each front.
As for enemy identification, the artificial composite leukocytes could already successfully enter a white mouse's body and coexist peacefully with its Immune System for a long time.
The technology they used mainly came from the technical reserves developed for the Stomach Cancer Drug. They gave the artificial composite leukocytes properties similar to those of cancer cells, allowing them to evade pursuit by the Immune System.
First, they lowered the Class I MHC molecules on the surface of the Artificial White Blood Cells to the minimum level, making them invisible to CD8+ cytotoxic T cells. At the same time, they retained a trace amount of Class I MHC molecules to avoid triggering a roundup by natural killer cells. After adding a tiny bit of mutated genes for immune tolerance, they could basically move with ease, running rampant inside mice!
Ling Yiyi was extremely excited by this technology. She proposed creating poisonous cancer-like bacteria that could easily break through the human immune system and thereby become powerful biochemical weapons.
Song He decisively docked two of her credits, punished her by making her copy the laboratory rules ten times, refused to teach her the relevant technology, and sent her back to continue researching Ling bacteria for Desert-to-Soil Conversion.
That girl was becoming more and more dangerous. She had to be strictly controlled.
Although the Artificial White Blood Cells could enter a mouse's body, they could not distinguish friend from foe and would actively attack multiple organs in the mouse.
The results were horrifying. They