Antigen Collection

T lymphocytes and cancer cell, SEM C001 / 1679
T lymphocytes and cancer cell. Coloured scanning electron micrograph (SEM) of T lymphocyte cells (green) attached to a cancer cell

Hepatitis B viruses
Hepatitis B virus. Coloured transmission electron micrograph (TEM) of hepatitis B viruses (circles), a cause of liver inflammation

Illustration of response to infection after vaccination, involving microbe, antigens, antibody, plas

Neutrophil cell trapping bacteria, SEM
Neutrophil cell trapping bacteria. Coloured scanning electron micrograph (SEM) of bacteria (rod-shaped) being trapped by a neutrophil cell

Immunoglobulin G antibody and egg white F006 / 9682
Immunoglobulin G and egg white. Molecular model of an immunoglobulin G (IgG) antibody bound to a molecule of egg white. This is the most abundant immunoglobulin and is found in all body fluids

Foot-and-mouth disease virus F006 / 9556
Foot-and-mouth disease virus. Molecular model of the foot-and-mouth disease (FMD) virus (Aphtae epizooticae) protein coat (capsid)

Conceptual image of antibody attaching and killing bacteria

Surrounding tissue becomes inflamed causing several systemic effects, such as vasodilation, mucous secretion, nerve stimulation and smooth muscle contraction

Antihistamine in histamine receptors blocking the allergic reaction

Artistic representation of the immune systems reaction to bacteria invading the tissues

Microscopic view of immunoglobulin G antibodies

Mast cell releasing histamine due to allergic reaction

Microscopic view of cell and antibody

Haemagglutinin viral surface protein F007 / 9932
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Haemagglutinin viral surface protein F007 / 9931
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Virus, artwork F005 / 4882
Computer artwork of a generic virus particle

Virus, artwork F005 / 4884
Computer artwork of a generic virus particle

Virus, artwork F005 / 4881
Computer artwork of a generic virus particle

Virus, artwork F005 / 4883
Computer artwork of a generic virus particle

Virus, artwork F005 / 4880
Computer artwork of a generic virus particle

Virus, artwork F005 / 4879
Computer artwork of a generic virus particle

Human antitumour antibody molecule
Human antitumour antibody. Molecular model showing the antitumour antibody BR96 complexed with part of the Lewis antigen. The Lewis antigen is expressed on the surface of human carcinoma cells

Proliferating cell nuclear antigen molecule. Molecular model of human proliferating cell nuclear antigen (PCNA, blue, green and red), complexed with its loader protein (purple, orange)

Hepatitis C glycoprotein and antibody F006 / 9757
Hepatitis C glycoprotein and antibody. Molecular model of the E2 envelope glycoprotein from the hepatitis C virus bound to a neutralising antibody

Antibodies and their antigen F006 / 9678
Antibodies and their antigen. Molecular model showing the molecular structure of two anti-P-glycoprotein antibodies (upper left and right) and the P-glycoprotein (v-shaped) to which they respond

H5N1 Haemagglutinin protein subunit F006 / 9590
H5N1 haemagglutinin protein subunit. Molecular model of the haemagglutinin HA(5) subunit. Haemagglutinin is a surface protein from the influenza A virus

H1 antigen from 1918 influenza virus F006 / 9495
H1 antigen from 1918 influenza virus

Yersinia pestis virulence factor F006 / 9486
Yersinia pestis virulence factor. Molecular model of the V-antigen protein, a virulence factor in Yersinia pestis, the causative agent of the plague

Haemagglutinin protein subunit F006 / 9479
Haemagglutinin protein subunit. Molecular model of the ectodomain of the haemagglutinin HA(2) subunit. Haemagglutinin is a surface protein from the influenza A virus

Foot-and-mouth disease virus F006 / 9471
Foot-and-mouth disease virus. Molecular model of the foot-and-mouth disease (FMD) virus Aphtae epizooticae, with antibodies (immunoglobulins)

Haemagglutinin viral surface protein F006 / 9470
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Flu virus surface protein and antibody F006 / 9428
Flu virus surface protein and antibody. Molecular model of the neuraminidase glycoprotein enzyme found on the surface of the influenza (flu) virus

MHC protein-antigen complex F006 / 9363
MHC protein-antigen complex. Molecular model of the human class I MHC (major histocompatibility complex) protein HLA-B27 complexed with beta-2 microglobulin

MHC protein complexed with flu virus F006 / 9294
MHC protein complexed with flu virus. Molecular model showing human class II MHC (major histocompatibility complex) protein HLA-DR1 complexed with an influenza (flu) virus peptide

T-cell receptor bound to enterotoxin, molecular model. The T cell receptor (TCR) is a protein complex found on the surface of a type of white blood cell called T lymphocytes (or T cells)

Grass pollen allergen molecule
Grass pollen allergen. Molecular model of the major grass pollen allergen Phl p2 complexed with the antigen-binding fragment (fab) of its human immunoglobulin E antibody

HIV antibody and glycoprotein complex. Molecular model of the anti-human immunodeficiency virus type 1 (anti-HIV-1) antibody 2F5 in complex with the gp41 envelope glycoprotein of HIV-1

MHC protein-antigen complex C015 / 1924
MHC protein-antigen complex. Molecular model of the human class I MHC (major histocompatibility complex) protein HLA-D27 complexed with a peptide antigen

Haemagglutinin viral surface protein C015 / 9965
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Haemagglutinin viral surface protein C015 / 7124
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Haemagglutinin viral surface protein C015 / 9974
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Avian influenza virus, TEM C015 / 8800
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Avian influenza virus, TEM C015 / 8799
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Avian influenza virus, TEM C015 / 8797
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Simian virus (SV40) large T antigen C015 / 7069
Simian virus (SV40) large T antigen, molecular model. This antigen is from the simian vacuolating virus 40 (SV40). Large T antigens play a role in regulating the viral life cycle of

Haemagglutinin viral surface protein C015 / 7123
Haemagglutinin viral surface protein. Molecular model of haemagglutinin, a surface protein from the influenza virus, complexed with a neutralising antibody

Influenza virus, illustration C018 / 0735
Influenza virus. Illustration of an influenza (flu) virus particle (virion). The virus consists of an RNA (ribonucleic acid) core (black)

Human immune response molecule complex. Molecular model showing a human T-cell receptor and an HLA-A leukocyte (white blood cell) antigen bound to a TAX peptide from a virus

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"Unveiling the Power of Antigens: Exploring the Dynamic Interplay with T Lymphocytes and Cancer Cells" In the realm of immunology, antigens hold a crucial role in our body's defense against various diseases. From Hepatitis B viruses to Hantavirus, these microscopic entities trigger an intricate immune response that safeguards our well-being. Through captivating SEM C001 / 1679 images, we witness T lymphocytes engaging in a fierce battle against cancer cells. These specialized white blood cells recognize specific antigens on malignant invaders, launching a targeted attack to eliminate them. Vaccination plays a pivotal role in preparing our immune system for future encounters. An awe-inspiring illustration showcases how vaccines stimulate our body's defenses by introducing microbes and their associated antigens. This prompts antibody production (such as Immunoglobulin G) and primes us for effective protection against potential infections. The foot-and-mouth disease virus (F006 / 9556) serves as another example where antigens play a central role. A conceptual image vividly portrays antibodies attaching themselves to bacteria, effectively neutralizing and killing them. Meanwhile, surrounding tissues become inflamed due to this battle, causing systemic effects that signal an ongoing fight within. Antihistamines come into play when allergies strike; they block histamine receptors from triggering allergic reactions caused by antigen exposure. This provides relief from symptoms like inflammation or itching – showcasing how understanding antigen interactions can lead to practical solutions for everyday health challenges. Nature's arsenal includes natural killer cells injecting toxins into bacteria—an extraordinary sight captured through scientific imaging techniques. These remarkable defenders contribute significantly to eliminating harmful pathogens from invading our bodies. Artistic representations beautifully depict the immune system's reaction when bacteria invade tissues—a synchronized dance between antibodies and foreign intruders unfolds before our eyes—showcasing nature's incredible ability to protect itself at its finest hour.