keratin filament

In addition, keratin filaments are present in epithelial cells in general.

It involves the clumping of keratin filaments.

In the cytoplasm, the keratin filaments conform a complex network which extends from the surface of the nucleus to the cell membrane.

Second, the cells are bound together across their cytoplasm by keratin filaments that form cell to cell connections (desmosomes).

Keratin filaments are intermediate filaments.

Acidic and basic keratins bind each other to form acidic-basic heterodimers and these heterodimers then associate to make a keratin filament.

Keratin filaments are abundant in keratinocytes in the cornified layer of the epidermis; these are cells which have undergone keratinization.

The bodies themselves are made up of intermediate keratin filament proteins that have been ubiquinated, or bound by other proteins such as heat shock proteins, or p62.

The hair shaft is made of tightly bound keratin cells, he explained, and vitamin A and its derivatives loosen these bonds so the keratin filaments are packed less tightly.

In many other cell types, such as cells of the dermis, keratin filaments and other intermediate filaments function as part of the cytoskeleton to mechanically stabilize the cell against physical stress.

Keratin filaments in epithelial cells link to desmosomes (desmosomes connect the cytoskeleton together) through plakoglobin, desmoplakin, desmogleins, and desmocollins; desmin filaments are connected in a similar way in heart muscle cells.

The foundational model of anatomy makes a distinction between endothelial cells and epithelial cells on the basis of which tissues they develop from, and states that the presence of vimentin rather than keratin filaments separate these from epithelial cells.