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Killer cells, specifically cytotoxic T cells, can cause rejection of an organ transplant because they recognize the transplanted tissue as foreign due to differences in major histocompatibility complex (MHC) molecules. When T cells identify these foreign antigens, they become activated and initiate an immune response, leading to the destruction of the transplanted cells. This rejection process is a natural defense mechanism of the immune system to protect the body from perceived threats. Immunosuppressive medications are often used to mitigate this response and promote transplant acceptance.
What else can I help you with?
Which transplant method would prevent the rejection of tissue after an organ transplant?
Using organs cloned from the cells of the patient.
Which transplant method would prevent the rejection tissue after an organ transplant?
Using organs cloned from the cells of the patient.
What does tissue rejection mean?
after a graft or transplant, the immune response of the recipient to foreign tissue cells, with production of antibodies and eventually destruction of the transplanted organ. acute rejection , acute cellular rejection , cellular rejection.
Which type of transplant uses the patient's own tissue?
An autologous transplant is a type of transplant that uses the patient's own tissue or cells. This type of transplant is typically used in procedures such as bone marrow or stem cell transplants. Autologous transplants reduce the risk of rejection since the tissue or cells are from the patient's own body.
Why do white blood cells sometimes cause tissue rejection?
cells with protein markers do not interact with white blood cells' receptor molecules and are not detected by the immune system.
What type of membrane protein responsible for rejection in tissue transplants?
Major histocompatibility complex (MHC) proteins, specifically MHC class I and II, are responsible for initiating an immune response against foreign tissues in tissue transplants. These proteins present antigens to T cells, triggering the immune system to recognize and reject the transplant as a foreign entity.
How does tissue damage occur in acute rejection after an organ transplant?
Tissue damage during acute rejection after an organ transplant primarily occurs due to an immune response initiated by the recipient's body recognizing the transplanted organ as foreign. This immune response is mediated by T cells that infiltrate the transplanted tissue, leading to inflammation and destruction of donor cells. Additionally, antibodies may be produced that target donor antigens, further contributing to tissue injury. The result is acute inflammation and damage to the transplanted organ, which can impair its function.
What is the main advantage of this new method of pancreatic cell transplant over other pancreatic transplant method?
The main advantage of this new method is that it uses stem cells to generate pancreatic cells, eliminating the need for donor organs. This reduces the risk of rejection and the need for immunosuppressive drugs, making the procedure safer and more accessible for patients.
How do killer cells work?
Killer t cells are activated by helper t cells. The Helper t cells are alerted by the macrophage that has engulfed the virus. It grows antigens to alert the helper t cells. The killer t cells are like white blood cells, there purpose is to fight pathogens.
If researchers genetically modify pigs to produce human antigens on their cell surfaces how can this improve the chances of a human body not rejecting such transplant?
By producing human antigens on their cell surfaces, the genetically modified pigs can effectively disguise themselves as human cells to the recipient's immune system, reducing the chances of rejection. This helps to minimize the immune response and improve the compatibility between the donor organ and the recipient's body.
What are the three types of lymphocytes?
T-cells B-cells NK cells (natural killer)
What is the function of the Killer cells?
The thymus produces both helper t and killer t cells in the fight against infection. The killer t cells eliminate harmful cells and organic materials from the bloodstream
