Arising in the mucous membranes, these white patches on the tongue, gums, cheeks, or elsewhere inside the mouth have the potential to develop into squamous cell carcinoma. They may be caused by sources of chronic irritation, such as habitual alcohol consumption or tobacco use, or rough edges on teeth or dentures.
Virus infection in vertebrates results in two general types of immune response. The first is a rapid-onset innate response against the virus, which involves the synthesis of proteins called interferons and the stimulation of natural killer lymphocytes.
First, its response is not as nimbly specific as that of the adaptive immune response. Although, as a group, pattern-recognition receptors (PRRs) can recognize many pathogens, the innate immune system mounts a generalized defense effective for some invaders but less effective for others.he innate immune system is designed to provide a kind of shock and awe protection against bacteria, viruses and other invaders. When cells in the innate immune system see an invader, they rush in to destroy it, often by releasing inflammatory chemicals such as histamines and leukotrienes.