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Macrophages

Lung macrophages infected with human cytomegalovirus. In bright green - the cells where there is an active infection

On dormant viruses and protective proteins

New discoveries about how the result of infection with a virus from the herpes family is determined and where dormant viruses may hide in the body
A segment of the lymph node. Illustration: depositphotos.com

New information about phagocytic cells of the immune system may lead to treatments for incurable autoimmune diseases

The origin of the mysterious macrophages, known in scientific language as Tingible Body Macrophages (TBM), is in progenitor cells of the blood system that emerge from the bone marrow and settle in the lymph nodes, where they quickly and efficiently digest the remains of antibody-producing cells of the immune system
Salmonella bacteria (bright green) inside macrophages (yellow-brown) of a mouse. Dr. Roy Avraham, Weizmann Institute

Salmonella melons

This is how bacteria turn the cells of the immune system into an all-inclusive hotel: bacteria swallowed by macrophages sometimes succeed not only in surviving but even thriving inside them, as if they were incubators that help spread the infection in the body - and not soldiers in the service of the immune system
The gene expression of immune cells in the colon (left): monocytes before reaching the colon, "criminal" cells that are not educated, immune cells after a series of education, old immune cells

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