When we don't love ourselves
B cells play a role in the immune response against cancer by producing antibodies that can help target cancer cells for destruction by other immune cells. They do not directly destroy cancer cells themselves, but help to coordinate the immune system's response against cancer.
a bunch of cells a bunch of cells
Cells of the immune system, particularly certain types of white blood cells, primarily target cancer cells. The main types of immune cells involved in targeting cancer cells include: Cytotoxic T Cells (CD8+ T Cells): These cells directly attack and destroy cancer cells by recognizing specific antigens present on the surface of the cancer cells. Natural Killer (NK) Cells: NK cells are a type of lymphocyte that can recognize and kill abnormal cells, including cancer cells, without prior sensitization or the need for specific antigens. Macrophages: Macrophages are immune cells that engulf and digest foreign substances, including cancer cells, through a process called phagocytosis. They also play a role in presenting antigens to other immune cells to initiate an immune response against cancer. Dendritic Cells: Dendritic cells are antigen-presenting cells that capture antigens from cancer cells and present them to T cells, thereby activating an adaptive immune response against the cancer. Tumor-Infiltrating Lymphocytes (TILs): These are lymphocytes that have migrated into the tumor microenvironment and are involved in recognizing and attacking cancer cells. Cytokine-Induced Killer (CIK) Cells: CIK cells are a type of immune cell that has been activated and expanded outside the body and then reintroduced into the patient to target and kill cancer cells. These immune cells, along with other components of the immune system, form a complex network known as the immune response, which plays a crucial role in recognizing and eliminating cancer cells from the body.
Yes, most of the time the immune system weeds out cells that are abnormal.
The body releases white blood cells to destroy the cancer cells, if cancer hasn't affected with the immune system first. Somtimes cancer can be rid of before the person even knew they had it.
Memory cells
The major histocompatibility complex (MHC) molecules are marker molecules on cells that the immune system uses to recognize pathogens. MHC molecules present fragments of pathogens on the cell surface to alert immune cells to the presence of the pathogen. This helps the immune system to target and eliminate infected cells.
Cancer is somewhat confusing to the immune system since it is an aberrant form of the body's own cells which the immune system is not supposed to attack. Sometimes the immune system can detect that the cancer cell is not a normal part of the body, and therefore it will destroy the cancer, but quite often the immune system cannot detect the abnormality of the cancer cell and will ignore it. That is precisely why cancer is so dangerous.
lymphocytes
The radiation kills bone marrow, where both red and white blood cells are made. The white blood cells produce most of the immune system, with fewer white blood cells the immune system weakens.
Viruses can be engineered to specifically target and infect cancer cells, causing them to die. Some viruses can also stimulate the immune system to recognize and attack cancer cells. Additionally, certain viruses have the ability to directly interfere with the replication process of cancer cells, leading to their death.
1. Your immune system can recognize cells based on the proteins present on the surface of cells. Viruses, bacteria, and other foreign cells are recognized as being different from your own cells and are attacked by your immune system.