49 Bilder zum Thema "innate immunity" bei ClipDealer

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Makrophage, type of white blood cell, of the immune system, that engulfs and digests cellular debris, foreign substances, microbes, cancer cells
Macrophages approaching bacteria (bacilli), 3D rendering. Illustration
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.
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
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
Leukocyte, white blood cell seen under a microscope. Cell. 3d rendering
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.
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.
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
Native human lysozyme, 3D cartoon model of the tertiary structure with the elements of the secondary structure colored, white background
Macrophag engulfing bacteria (cocci), 3D rendering. Macrophages engulf and digest cellular debris and pathogens. - Illustration
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
3d illustration of cancer cells and lymphocytes
3d illustration of a cancer cell and lymphocytes
Lymphocytes cell in the immune system reacting and attacking a spreading cancer cell - 3d illustration
Lymphocytes cell in the immune system reacting and attacking a spreading cancer cell - 3d illustration
3D medical illustration cytotoxic T cell and Helper T cell destroys the stress-related molecule
3d illustration of a cancer cell and lymphocytes
Lymphocytes cell in the immune system reacting and attacking a spreading cancer cell - 3d illustration
3d illustration of a cancer cell and lymphocytes
Medical science background, Neutrophils, a large group of leukocyte granulocytes, are part of innate immunity, the main function is phagocytosis of pathogenic microorganisms, 3d rendering
3d illustration of a cancer cell and lymphocytes
Human Cytotoxic T cell
White blood cells, T lymphocytes or natural killers T attack a cancerous or infected cell 3D rendering illustration isolated on black background. Science, medicine, biomedical research, immune system, oncology, biology concepts.
3d illustration of a cancer cell and lymphocytes
White blood cells or T lymphocytes or natural killer T attack a cancer or tumor or infected cell 3D rendering illustration. Oncology, immune system, biomedical, medicine, science, biology concepts.
Human Cytotoxic T cell
Makrophage eating borrelia bacteria
3d illustration of cancer cells and lymphocytes
An antigen is a molecule that initiates the production of an antibody and causes an immune response 3d rendering
Human Cytotoxic T cell
Human Cytotoxic T cell
Human Cytotoxic T cell
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
An antigen is a molecule that initiates the production of an antibody and causes an immune response 3d rendering
Doctor holding in hand Immunotherapy
3d illustration of a cancer cell attacked and killed by lymphocytes
Lymphocytes cell in the immune system reacting and attacking a spreading cancer cell - 3d illustration
3D medical illustration cytotoxic T cell and Helper T cell destroys the stress-related molecule
Microscopic metastasis of cancer
Blood sample tube Natural Killer cells or NK cells test . 3D illustration
Dendritic cell. 3D-rendering. Dendritic cells are antigen-presenting cells of the immune system. Illustration
T lymphocytes attacking cancer cell; 3D-rendering Natural killer cells are a type of lymphocytes which destroy cancer cells and other altered cells releasing cytotoxic granules. Illustration
Four Types of Human Immunity
3d illustration of a cancer cell attacked and killed by lymphocytes
Migrating and spreading cancer cell - 3d illustration
3D medical illustration cytotoxic T cell and Helper T cell destroys the stress-related molecule

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