Platelets can bind and internalize pathogens and release microbicidal proteins that kill certain bacteria and fungi.

Do platelets destroy bacteria?

Platelets kill bacteria by bridging innate and adaptive immunity via PF4 and FcγRIIA.

What do platelets do?

Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or prevent bleeding. Platelets are made in our bone marrow, the sponge-like tissue inside our bones.