In biology, the nuclear matrix is the network of fibres found throughout the inside of a cell nucleus and is somewhat analogous to the cell cytoskeleton. However, in contrast to the cytoskeleton, the nuclear matrix has been proposed to be a highly dynamic structure, perhaps more like a dynamic sponge with open compartments for free diffusion of molecules in the nucleus. The exact function of this matrix is still disputed, and its very existence has recently been called into question. There is evidence that the nuclear matrix is involved in regulation of gene expression in Arabidopsis thaliana.
Read more about Nuclear Matrix: Justification of The Nuclear Matrix Hypothesis, Nuclear Matrix and Cancer
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