cytoplasmic matrix

cy·to·plas·mic ma·trix

a fluid cytoplasmic substance filling the interstices of the cytoskeleton.
Synonym(s): cell matrix, cytomatrix
Farlex Partner Medical Dictionary © Farlex 2012
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In some cells the apocrine blebs are seen protruding into the lumen containing cytoplasmic matrix. Thus, secretory material is released into the lumen by apocrine and merocrine modes during pre-breeding and the active breeding period.
Apical cytoplasmic blebs (ACB) containing cytoplasmic matrix is seen projecting into the lumen.
Analyzed by the TMHMM server, result shows that the protein is located in the outside of membrane and has no transmembrane domain; therefore the protein can be deduced in cytoplasmic matrix. Based on the predicted subcellular localization, it is most probably located in the cytoplasm with prediction value of 3.8.
Instead, he maintains, the cell is filled with filaments, tubules, fibers, and trabeculae, collectively called the cytoplasmic matrix or cytoskeleton--a network extending even to the genome.
However, after 12 h, the sporoplasms remained segregated and retained their cytoplasmic matrix. This significant positive effect of cholesterol addition to the medium indicates that the sporoplasm outer envelope may be devoid of cholesterol.
In the immunopositive cells, the immunoreactive materials were more or less deposited diffusely in the cytoplasmic matrix. In contrast, the mitochondria having typical cristae were most intensely immunoreactive, although most of them were centrally raptured probably due to the DAB reaction (Figs.
As a result, the remaining cytoplasmic domains other than those occupied by the cell organelles and elements are termed the cytoplasmic matrix which is generally assumed to be sites of intracellular soluble proteins defined in biochemistry.
However, since the clear visibility of targets in conventional TEM is owing to lipids, but not proteins, in their chemical compositions, the cytosolic proteins and their comprised cytoplasmic matrix do not acquire the electron density sufficient to overcome the intrinsic electron-density of embedding epoxy resin, resulting in their indistinct or just flocculent appearance in conventional TEM.
This was the first and sole method that disclosed clearly a distinct structural entity, that is, the strand-lattice originally termed microtrabecula, filling the cytoplasmic matrix. The strands range between 20-30 nm and 100-200 nm in length, and between 2-3 nm and more than 10 nm in thickness.
Further observations of various tissue cells in this method have lead to notice that the cytoplasmic matrix disclosing more compact strand-lattices in the embedment-free section TEM faithfully correspond to that exhibiting higher electron density in conventional TEM (Figs.
Globular formations showing feature of pale multivesicular bodies, sometimes engulfing denser material of the cytoplasmic matrix, as well as small dense vesicles and dense granular material, were verified in the cytoplasm of the apical expansions (Figs.
These lamellae delimited a space of the cytoplasmic matrix that sometimes contained dense granules (see Figure 10), supporting the hypothesis of synthesis and deportation of protein material, based also on previous subcellular observations of principal cells of the epididymis of domestic pig (Briz et al., 1993), and in the vas deferens of gerbil (Orsi et al., 1999).

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