95 Bilder zum Thema "adaptive immune system" bei ClipDealer

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Immune System
Immune System
Immune System
Immune System
Immune System
3d computer illustration of a dendritic cell. They areantigen-presenting cells of the immune system. Their main function is to process antigen material and present it on the cell surface to the T cells of the immune system. They are messengers betwe
Immune System Concept
Dendritic cells present antigens (green) to lymphocytes through their membran bound MHC-molecules (violet). CD4 molecules (light blue) bind to other portions of the MHC, strengthening the interaction.
PD-1 (red) extends from the surface of a T-cell and interacts with the ligand protein PD-L1 (yellow) from a antigen presenting cell. Although the T-cell has been activated through the interaction of a T-cell receptor (blue) and a MHC protein (viole
Interaction of MHC-II (red) with the T-cell receptor (blue) and CD4 (light blue) and B7-1 (orange) with CD-28 (dark blue) activates T-cells while the interaction of P7-1 with CTLA-4 (violett) and PD-L1 (yellow) with PD-1 deactivates T-cells
Interactions of MHC-II with the T-cell receptor and CD4 and B7-1 with CD-28 activates T-cells while the interactions of P7-1 with CTLA-4 and PD-L1 with PD-1 deactivates T-cells.
Immunologically active proteins on a T-cell. TCR (blue), CD-4 (light blue), CD-28 (dark blue), PD-1 (magenta), CTLA-4 (violet), Ca-channel (dark violet). The T-cell receptor, CD-4 and CD-28 activate T-cells, while PD-1 and CTLA-4 inhibit the activat
Cancer cells express PD-L1 (orange) proteins on their surface to trick the immune system. The interaction of PD-L1 with PD-1 of T-cells leads to a down-regulation of T-cells. The antibody (yellow) blocks this interaction.
Stimulation of immunity. Happy little baby. Little baby happy smile doing gymnastics. Immune system stimulation. Boost your childs immunity
Vaccination - administration of a vaccine to help the immune system develop protection from a disease, mind map concept for presentations and reports
Plasma cell B lymphocyte producing antibodies isolated on black
Makrophage eating borrelia bacteria
3D medical illustration cytotoxic T cell and Helper T cell destroys the stress-related molecule
human T helper cell
human T helper cell
human T helper cell
Macrophages approaching bacteria (bacilli), 3D rendering. Illustration
After activation by an antigen presenting cell, a T helper cell segregates several cytokines.
Human Cytotoxic T cell
Human Antigene and bacteria
Human Cytotoxic T cell
T-lymphocytes and dendritic cells, 3D-rendering; Dendritic cells are antigen-presenting cells of the immune system. They process antigen material and present it on the cell surface to the T-cells. Illustration
Human Cytotoxic T cell
Macrophag engulfing bacteria (cocci), 3D rendering. Macrophages engulf and digest cellular debris and pathogens. - Illustration
Makrophage, type of white blood cell, of the immune system, that engulfs and digests cellular debris, foreign substances, microbes, cancer cells
Lymphocyte. Immune cell. Antibody-producing cell. B-lymphocyte o
Human Antigene and bacteria
Human Cytotoxic T cell
Human Cytotoxic T cell
Human Cytotoxic T cell
human T helper cell
human T helper cell
Plasma cell B lymphocyte producing antibodies isolated on white
B cell lymphocyte producing antibodies
3D medical illustration cytotoxic T cell and Helper T cell destroys the stress-related molecule
human T helper cell
Diagnosis - Influenza. Medical Concept.
Antigen presenting cells
Human Antigene and bacteria
Influenza Diagnosis. Medical Concept.
Influenza Vaccination - Medical Concept.
Influenza Diagnosis. Medical Concept. 3D Render.
Influenza. Medical Concept on Red Background.
Antigen presenting cells
Dendritic cell. Dendritic cells are antigen-presenting cells of the immune system. They process antigen material and present it on the cell surface to the T cells of the immune system. 3D Rendering. Illustration
T Cell, helper T cell and cytotoxic T cell, CD Antigen Types, CD4 And CD8, 3d rendering
Immunization - Medical Concept.

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