Immunology Collection (page 17)

Bone marrow, SEM
Bone marrow, coloured scanning electron micrograph (SEM). This freeze-fracture has revealed the cavity (lumen) of a large venous sinus (pink), which contains mature blood cells (red)

Neutrophil engulfing TB bacteria, SEM
Neutrophil engulfing TB bacteria. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell (large, centre) engulfing and destroying a tuberculosis (Mycobacterium tuberculosis)

Neutrophil engulfing thrush fungus, SEM
Neutrophil engulfing thrush fungus. Coloured scanning electron micrograph (SEM) of a neutrophil white blood cell engulfing and destroying a hypha (round)

Blood cells in a kidney, SEM
Blood cells in a kidney. Transmission electron micrograph (TEM) of a section through a kidney glomerulus, showing red blood cells (erythrocytes, red) and a white blood cell (leucocyte, blue)

Tuberculosis vaccine bacteria, SEM
Tuberculosis vaccine bacteria. Coloured scanning electron micrograph (SEM) of the Gram-positive rod-shaped (bacillus) Mycobacterium bovis bacteria

Bacteria infecting macrophage cells, SEM
Bacteria infecting macrophage cells. Coloured scanning electron micrograph (SEM) of Bacillus anthracis bacteria (purple) infecting macrophage white blood cells

Cytidine deaminase, molecular model
Cytidine deaminase. Computer model of the enzyme, activation-induced (cytidine) deaminase (AID). The tertiary structures of two protein complexes (purple and green)

Cell infected with HIV, SEM
Cell infected with HIV. Coloured scanning electron micrograph (SEM) of HIV particles (yellow) budding from the membrane of a host cell (red)

Interleukin-12 protein molecule. Molecular model of a molecule of the cytokine protein interleukin-12 (IL-12). The secondary structure of the molecule is seen here

Birch pollen allergen. Molecular model of the secondary structure of Bet v 1l, the molecule responsible for allergic reactions to birch pollen

Cd28 antigen molecule. Computer model showing the secondary structure of cd28. Cd28 is an antigen found on the surface of T cells

Interleukin-10, molecular model
Interleukin-10. Molecular model of the secondary structure of interleukin-10, a small protein known as a cytokine that plays an important regulatory role in the bodys immune system

CD4 protein fragment, molecular model
CD4 protein fragment. Molecular model of the CD4 glycoprotein, which plays a vital role in the immune system. It is found on the surface of white blood cells called T cells

Interferon, molecular model
Interferon. Molecular model showing the secondary structure of a molecule of interferon. Interferons are proteins produced by white blood cells as part of the immune response to invading pathogens

Interleukin-6, molecular model
Interleukin-6. Molecular model of the secondary structure of the cytokine protein interleukin-6. This protein is produced in the body and has a wide variety of functions in the immune system

Plasma cell, TEM
Plasma cell, coloured transmission electron micrograph (TEM). This section has revealed the cells large central nucleus (brown)

HIV antibody therapy. Molecular model of the interaction of the HIV surface protein gp120 (green, lower right) as it interacts with a human white blood cell surface protein (CD4, blue)

HIV enzyme being affected by a drug. Molecular model of HIVs reverse transcriptase enzyme as it interacts with a drug (not seen)

Streptococcal protein G molecule
Streptococcal protein G. Computer model showing the primary (ball-and-stick) and secondary (alpha- helix, blue, and beta-sheets, purple) structures of Streptococcal protein G

C-reactive protein, molecular models. Two molecules of the protein are seen. The protein is made up of five sub-units (monomers) arranged in a ring

Nerve cell trauma response. Fluorescent light micrograph of a section through a spinal cord affected by multiple sclerosis (MS)

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"Unleashing the Power of Immunology: Exploring the Intricate World of Immune Responses" Immunology, a fascinating field that delves into the complex mechanisms of our immune system, holds immense potential in combating diseases. T lymphocytes and cancer cells engage in a constant battle for supremacy, as depicted by SEM C001 / 1679. These tiny warriors play a crucial role in identifying and eliminating abnormal cells. The Immunoglobulin G antibody molecule (F007 / 9894) stands tall as one of our body's most powerful defenders against pathogens. Its remarkable structure enables it to neutralize harmful invaders with precision and efficiency. Neutrophils, exemplified by SEM C018 / 8596, showcase their extraordinary ability to engulf MRSA bacteria—an awe-inspiring sight indeed. Meanwhile, dendritic cells (artwork) act as vigilant sentinels, capturing antigens and presenting them to other immune cells for recognition. TEM reveals an up-close view of human white blood cells bearing HLA antigens—a key component in distinguishing self from non-self. Antibodies (artwork), resembling elegant warriors on a mission, bind specifically to foreign substances to mark them for destruction. HIV reverse transcription enzyme serves as a reminder of the challenges faced by immunologists worldwide. This relentless virus exploits our own cellular machinery but continues to be targeted through innovative research efforts. Human macrophages (TEM) demonstrate their exceptional phagocytic abilities while basophil white blood cells stand ready at the frontlines—both integral players in mounting effective immune responses against invading pathogens. Intriguingly captured by SEM imagery is bacteria infecting a macrophage—a visual representation highlighting how these microscopic organisms can exploit host defenses while also serving as valuable tools for studying infection dynamics. Lastly, Dohle bodies within blood cells offer insights into various pathological conditions affecting neutrophils—an essential clue guiding immunologists towards understanding and treating immune disorders.