Imagine a tiny, smart bomb designed to wipe out cancer cells and wake up the body’s immune system to fight back. This is the idea behind a new nanogel drug delivery system, DPCLG. It’s like a sneaky military operation, targeting two types of cells in the tumor’s neighborhood: cancer cells and immune cells that have been fooled into helping the tumor grow.

First, the nanogel is covered with a special coating that dissolves when it meets a protein called MMP-2, which is common in tumor areas. Inside, there are two types of liposomes, or tiny fat bubbles, waiting to be released.

The first liposome, DPL, is loaded with doxorubicin and 4-phenylimidazole. Doxorubicin is a well-known chemotherapy drug that kills cancer cells. The 4-phenylimidazole helps to make the tumor’s environment less friendly to cancer by reducing the immunosuppressive effects.

The second liposome, CL, is designed to target specific immune cells called M2 macrophages. These cells usually help the tumor grow, but CL carries a secret weapon called CpG oligodeoxynucleotides. When CL finds and attaches to M2 macrophages, it flips a switch, turning these cells into tumor-fighting heroes.

Researchers found that DPCLG can slow down tumor growth both in lab tests and in living organisms. It also helps to change the tumor’s environment, making it harder for cancer cells to hide from the immune system. This leads to a strong immune response throughout the body.

DPCLG shows great promise as a new tool for cancer therapy, combining chemotherapy and immunotherapy in a smart, targeted way. It’s like having a superhero team working together to defeat cancer.

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