Some materials, such as metal bone pins and plastic heart valves, can be implanted into the body without fear of rejection by the patient’s immune system. Why is this?
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- If the main criteria for an antigen is that it is foreign, I'm curious how the body responds in the case of tissue/organ transplant. I've heard of cases where the body rejects the new organ. Is this why? What makes some bodies of recipients reject the donor organs while others will accept?Granzyme and perforin are used by what cell type in the immune system to carry out its function? O 1) TH1 O 2) Neutrophil 3) Cytotoxic T cell O 4) EosinophilAn individual is infected with a particular pathogen that he had before. This results in the generation of an immune response.a) List the name of the type of immune response that may be generated.
- Describe the process by which your immune system is able to create antibodies to bacteria which penetrate your skin. Be sure to include ALL cell types and all cell surface antigen/markers involved with this process.What type(s) of biological molecule(s) are the best at inducing immune responses? What properties make these molecules good antigens? (Remember: the biological molecules are lipids, carbohydrates, proteins, and nucleic acids)Why are only very small amounts of antigen injected?
- An individual is infected with a particular pathogen that he had before. This results in the generation of an immune response.a) List the name of the type of immune response that may be generated. b) Outline and briefly differentiate three characteristics of this type of immune response.If a person is given a transfusion with the wrong blood type, what mechanism of action is responsible for the reaction seen in the body? O 1) IgE binds to mast cells releasing cytokines 2) Antigen-antibody complexes (IgG, IgM and IgA) lodge in basement membranes of tissues, neutrophil degranulation damages the tissues O 3) T cells respond to the inappropriate cells 4) IgG and IgM bind to cells stimulating complement, triggering cell lysisAntigens include proteins, polysaccharides, and various small molecules that stimulate antibody production. True or False?
- Which cell is responsible for initiating the inflammatory response within a tissue? basophil neutrophil mast cellThe transplantation of organs from one person to another was impossible until the discovery of immunosuppressive drugs. Now, with the use of drugs such as cyclosporine, organs can be transplanted without rejection. Transplant patients must take immunosuppressive drugs for the remainder of their lives. What are the potential risks associated with long-term use of immunosuppressive drugs?Why would the immune system naturally require suppression?