| 释义 |
DictionarySeemolecularmolecular mimicry
molecular mimicry[mə′lek·yə·lər ′mim·i‚krē] (immunology) The sharing, by two organisms closely related ecologically but not phylogenetically, of common macromolecular structures that are not attributable to evolutionary conservation of these structures. molecular mimicry
molecular mimicry Immunology A mechanism that may explain some forms of autoimmune disease, where the immune system attacks self antigens that are structurally similar to nonself antigensmolecular mimicry (mĭm′ĭk-rē) Antigenic similarity between molecules found on some disease-causing microorganisms and on specific previously healthy body cells or tissues. Molecular mimicry is one explanation for autoimmune diseases. After infection with a microorganism whose surface contains antigens similar to those found in the body, the immune system may respond inappropriately by trying to damage these cells with similar surface antigens in otherwise healthy joints, blood vessels, or other organs. |