Cancer Research: Women have treacherous cells that immune pancreatic cancer 22:14

Scientists at Karolinska University have found immune cells unique to women with pancreatic cancer. The discovery may explain why the effectiveness of immunotherapy often differs between men and women. The research was published in the journal cancer research.

The authors of the publication write that pancreatic ductal adenocarcinoma (PDAC) is almost always fatal, and patients live an average of four to six months after diagnosis.

Immunotherapy, a promising method of stimulating the immune system to attack cancer cells, has improved survival in melanoma, lung, kidney and liver cancers in recent years. However, immunotherapy is much less effective against pancreatic cancer due to the complex immune environment of this cancer type.

The researchers conducted a series of analyzes and experiments using samples from human cancer patients, 3D models of pancreatic cancer, and living mice. They found significant differences in tumor characteristics between men and women with pancreatic cancer. Apparently, women have a population of macrophages (immune cells) that express the FPR2 protein.

FPR2 interferes with the T cells of the immune system. This means that in women, macrophages effectively protect the tumor from the body’s immune response.

Researchers have shown that women with these immune cells have a very low survival rate for pancreatic cancer. Tests in mice also confirmed that blocking the FPR2 protein inhibited tumor growth in female mice. Future discovery could improve the effectiveness of immunotherapy in women.

Source: Gazeta


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