203 Bilder zum Thema "t lymphocyte" bei ClipDealer

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T-cells attacking cancer cell  illustration of  microscopic photos
White blood cells overview
T-cells attacking cancer cell  illustration of  microscopic photos
T-cells attacking cancer cell  illustration of  microscopic photos
T-cells attacking cancer cell  illustration of  microscopic photos
T-cells attacking cancer cell  illustration of  microscopic photos
Laboratory developing therapeutic vaccines for the treatment of lung cancer by stimulating the immune system.
Lymphocytes are white blood cells or leucocytes in the human imm
Lymphocyte Cell Concept
T-lymphocyt, virus
The Blood System
T-cell receptor bound to a cell membrane
Macrophage binding with t cell
Macrophage binding with t cell
human lymphocyte T cell
human T helper cell
T-cell receptor in complex with the MHC class II-peptide complex. The antigen (light green) is a peptide from a tumor cell, bacteria or virus. Different stages of the interaction. 3D-Rendering. Illustration
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.
Macrophage binding with t cell
Activation of the immune response to an antigene (green) through the complex between a T-cell receptor (dark blue), an MHC II-antigen (violet) and a CD4 protein (light blue). 3d rendering. Illustration
human T helper cell
3d rendering - dendritic cell
human T helper cell
Mechanisms of immune defense against viruses, 3D illustration
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.
Human Antigene and bacteria
Human Cytotoxic T cell
T-cell receptor in complex with the MHC class II-peptide complex. The antigen (light green) is a peptide from a tumor cell, bacteria or virus. Complex embedded in the membranes. 3D-Rendering. Illustration
T-cell receptor in complex with the MHC class II-peptide complex. The antigen (light green) is a peptide from a tumor cell, bacteria or virus. Different stages of the interaction. 3D-Rendering. Illustration
Human Cytotoxic T cell
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
Acute myeloid leukemia (AML) cells in blood flow - microscopic view 3d illustration
Acute lymphoblastic leukemia (ALL) cancer cell in blood flow - microscopic view 3d illustration
Human Antigene and bacteria
Magnifying glass and leukocytes attack the pathogen virus
Lymphocyte. Immune cell. Antibody-producing cell. B-lymphocyte o
Skin cancer cells isolated on white background, 3D illustration
Mechanisms of immune defense against viruses, 3D illustration
Multiple myeloma (MM) cells in the blood flow  - microscopic view 3d illustration
Microbiology. Antibodies attack virus. 3d illustration
Macrophage binding with t cell
closeup of cancer cells
macrophage and virus
Types of t Lymphocyte isolated, 3d rendering
Immunology
T cells and B cells in immune system
Cancer, malignant tumor, 3D illustration
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
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.
The T-cell receptor activates the immune response to antigens in T-lymphocytes. T-cell receptors (dark blue), CD4 molecules (light blue), glycolipids (orange). 3d rendering. Illustration

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