| D007239 |
Infections |
Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases. |
Infection,Infection and Infestation,Infections and Infestations,Infestation and Infection,Infestations and Infections |
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| D010586 |
Phagocytes |
Cells that can carry out the process of PHAGOCYTOSIS. |
Phagocyte,Phagocytic Cell,Phagocytic Cells,Cell, Phagocytic,Cells, Phagocytic |
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| D011951 |
Receptors, Complement |
Molecules on the surface of some B-lymphocytes and macrophages, that recognize and combine with the C3b, C3d, C1q, and C4b components of complement. |
Complement Receptors,Complement Receptor,Complement Receptor Type 1,Receptor, Complement |
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| D003167 |
Complement Activation |
The sequential activation of serum COMPLEMENT PROTEINS to create the COMPLEMENT MEMBRANE ATTACK COMPLEX. Factors initiating complement activation include ANTIGEN-ANTIBODY COMPLEXES, microbial ANTIGENS, or cell surface POLYSACCHARIDES. |
Activation, Complement,Activations, Complement,Complement Activations |
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| D003170 |
Complement Pathway, Alternative |
Complement activation initiated by the interaction of microbial ANTIGENS with COMPLEMENT C3B. When COMPLEMENT FACTOR B binds to the membrane-bound C3b, COMPLEMENT FACTOR D cleaves it to form alternative C3 CONVERTASE (C3BBB) which, stabilized by COMPLEMENT FACTOR P, is able to cleave multiple COMPLEMENT C3 to form alternative C5 CONVERTASE (C3BBB3B) leading to cleavage of COMPLEMENT C5 and the assembly of COMPLEMENT MEMBRANE ATTACK COMPLEX. |
Alternative Complement Pathway,Properdin Pathway,Alternative Complement Activation Pathway,Complement Activation Pathway, Alternative |
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| D003171 |
Complement Pathway, Classical |
Complement activation initiated by the binding of COMPLEMENT C1 to ANTIGEN-ANTIBODY COMPLEXES at the COMPLEMENT C1Q subunit. This leads to the sequential activation of COMPLEMENT C1R and COMPLEMENT C1S subunits. Activated C1s cleaves COMPLEMENT C4 and COMPLEMENT C2 forming the membrane-bound classical C3 CONVERTASE (C4B2A) and the subsequent C5 CONVERTASE (C4B2A3B) leading to cleavage of COMPLEMENT C5 and the assembly of COMPLEMENT MEMBRANE ATTACK COMPLEX. |
Classical Complement Pathway,Classical Complement Activation Pathway,Complement Activation Pathway, Classical |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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