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What is Vimentin type intermediate filament seen in : and explain in detail?
It has vimentin-type intermediate filaments. Langerhans cells are involved in the immune response. In the  presence of antigenic challenge by bacterial plaque Langerhans cells migrate into the gingiva. They also migrate into the epithelium in response to chemotactic factors released by the keratinocytes to the surface receptors of Langerhans cells.