TEM of human plasmocyte

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TEM of human plasmocyte

False-colour transmission electron micrograph (TEM) of a human plasmocyte (plasma cell). Plasmocytes are mature B-lymphocytes (white blood cells), which synthesise & secrete the antibodies of the immune system. Characteristic of a plasma cell is the parallel array of the rough endoplasmic reticulum, (yellow, at left), the cisternae (elements) of which become dilated with antibodies (immunoglobulins). Antibodies produced by a single plasma cell are of one specificity and immunoglobulin class. Magnification: x5, 200 at 6x7cm, x2, 600 at 35mm size

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6446633

© CNRI/SCIENCE PHOTO LIBRARY

Endoplasmic Reticulum Heterochromatin Immune Mature Plasma Cell Plasmocyte Rough Rough Endoplasmic Reticulum White Blood Cell Cells

EDITORS COMMENTS
This false-color transmission electron micrograph (TEM) print showcases the intricate structure of a human plasmocyte, also known as a plasma cell. Plasmocytes are mature B-lymphocytes, essential white blood cells responsible for producing and releasing antibodies crucial to our immune system's defense mechanisms. The distinguishing feature of this plasma cell is the striking parallel arrangement of rough endoplasmic reticulum (ER), depicted in vibrant yellow on the left side of the image. These ER cisternae play a vital role in synthesizing immunoglobulins or antibodies. As seen here, these cisternae become dilated with antibodies, forming an impressive display within the cell. Each individual plasma cell produces antibodies that possess specificities and belong to a particular class of immunoglobulin. This specialization ensures targeted responses against pathogens encountered by our immune system. With magnification at x5,200 for 6x7cm prints and x2,600 for 35mm size prints, this TEM image offers an unprecedented glimpse into the complex world within our bodies. The detailed depiction reveals not only the rough endoplasmic reticulum but also highlights other cellular components such as heterochromatin regions involved in gene regulation. Science Photo Library brings you this remarkable photograph capturing both scientific beauty and educational value. Explore further into the fascinating anatomy and functions of plasmocytes through this extraordinary visual representation.

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