Plasma Cell

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Related to Plasma cells: Macrophages, Histiocytes, Memory cells

plasma cell

[′plaz·mə ‚sel]
(histology)

Plasma Cell

 

a type of cell of the connective and hematopoietic tissues. Plasma cells are formed in vertebrates and man from hematopoietic stem cells of the bone marrow. Their principal function is the production of antibodies. Plasma cells are found in lymphatic and hematopoietic tissues, in serous membranes, and in the connective tissues of the organs of digestion and respiration; they accumulate during immunological reactions, for example, to foreign tissues and infection. They are round and have an eccentric nucleus that contains dense clumps of chromatin. The cytoplasm contains large amounts of ribonucleic acid and therefore stains strongly with basic stains. The only region of a plasma cell that absorbs little stain is near the nucleus, where the Golgi complex and the centrosome are located. The plasma cell also exhibits a well-developed endoplasmic reticulum and an abundance of ribosomes, which are characteristic of cells that actively synthesize and secrete proteins.

N. G. KHRUSHCHOV

References in periodicals archive ?
Besides this, bone marrow biopsy helps in finding cancerous plasma cells and medical imaging in finding bone lesions.
plasma cells, at least 2 of the following: a dense lymphoplasmacytic infiltrate, fibrosis (usually storiform), and obliterative vasculitis (usually phlebitis).
The disease was classified as stage I (< 20%], stage II (20% 50%] and stage III (> 50%] based on the percentage of plasma cells in the bone marrow.
This investigation highlights the difficulty of elucidating whether clusters of plasma cell dyscrasias result from chance or if they have a common occupational or environmental cause.
A normocellular microscopical appearance, with no plasma cell dyscrasia, was displayed on the bone marrow aspirate.
The pathological findings of IHP usually include thickened fibrotic dura mater with marked infiltration of lymphocytes and plasma cells, occasionally accompanied with small islands of meningothelial proliferation mimicking those of LPM.
5-fold reduction in the number of medium-sized lymphocytes is observed, which can be explained by the acceleration of their transformation into mature plasma cells, the number of which increases in helminthic infestations from 0.
DOK3 was able to promote the production of plasma cells by reducing the effects of calcium signalling on these membrane proteins.
What type of plasma cell dyscrasia is associated with these results?
Solitary plasmacytoma of bone (osseous plasmacytoma) is a localized tumor consisting of monoclonal plasma cells with an immunophenotypic pattern similar to plasma cell myeloma.
This EuroFlow[TM] tube proved sufficient for the specific identification, enumeration and discrimination between normal/reactive and aberrant plasma cells, being used for the initial screening of Plasma Cell Dyscrasias.
Up to 15% of patients will have hepatomegaly, splenomegaly or lymphadenopathy due to extramedullary deposits of plasma cells.

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