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Your own cells were created with certain "recognition" proteins on their cell membrane, which tells your immune system to ignore them when encountered. When this process fails, we see many "auto-immune" diseases like multiple sclerosis. It is also recently thought that Asthma and Diabetes may have some "auto-immune" components which tend to destroy pancreatic islet cells or epithelial cells in the bronchioles.
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How does your body know which cells to attack?
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.
Which makes viral infections difficult to defeat?
The immune system must attack the bodys own cells
What is overactive immune system?
It means your immune system begins to attack your body's own healthy cells and tissues, when it is only supposed to attack viruses and bacteria that might cause you harm. Check out auto immunity
What happens when the body cannot differentiate between pathogens and body cells?
The immune system will target the body's own cells
How does multifocal motor neuropathy affect a human organism?
the body's immune system accidentally misidentifies markers on the body's own nerve cells as foreign. The immune system then begins to produce cells that attack and injure or destroy either the nerve cells
How does the body know which cells to attack?
The body's immune system is able to distinguish between self and non-self cells through various mechanisms. One such mechanism is the presence of major histocompatibility complex (MHC) molecules on the surface of cells, which helps the immune system recognize self-cells. Non-self cells, such as infected or cancerous cells, may display abnormal proteins or antigens that are recognized as foreign by the immune system, prompting an immune response to attack and eliminate them.
What are autoimmune?
An autoimmune disease is caused by the immune system attacking you instead of threats and diseases coming from outside you. In autoimmune diseases, the body makes a mistake and attacks its own tissues.a condition that causes the body's own immune system to wrongly identify cells as foreign and attack them.
Why do white blood cells attack your internal organs?
In a healthy person, white blood cells only attack invading germs, and would not attack the person's own internal organs. However, there are autoimmune diseases, which cause the immune system to become confused and to attack the wrong targets.
How does the immune system respond to the throat cancer?
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.
The ability of your body's immune system to distinguish between your cells and foreign cells depends on your cells what?
At a basic level here's how it works: The surfaces of our cells have protein "markers" embedded in them, each person's markers are unique. If the immune system doesn't recognize the markers on a cell, it will attack it as being foreign. This usually works pretty well asa defense systems go, however, there are times (autoimmune diseases like Grave's disease, MS and rheumitoid arthritis) when the system attacks the body's own cells anyway or other diseases (HIV, etc) where the immune system doesn't recognize foreign cells, so doesn't attack.
What is the difference between immune system and auto immune system?
Well, lets start with the basics, your immune system is what keeps you from getting colds and flu's easily. so your auto-immune system (protection) automatically defends your body against these types of attacks, where anti-immune are the things trying to attack your immune system (Virus).
What does the non specific defense system do?
Also. Allied the innate immune system, cells and proteins involved recognize structures shared by classes of microbes not present on the body's own cells and can also recognize molecules released by infected, damaged, or dead cells. The innate system can eliminate microbes on its own but more commonly cells of the innate immune system release chemokines to attract cells that are involved in the adaptive immune system to initiate an antigen or microbe specific immune response
