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.
3/20/20101 Antigen recognition in innate and adaptive immunity Diversity in antigen recognition receptors Immune system The ability toThe ability to distinguish self from non-self Innate immunity â¢ Very old.Every organism has some form of innate defence system.â¢ Does not adapt./20/20101 Antigen recognition in innate and adaptive immunity Diversity in antigen recognition receptors Immune system The ability toThe ability to distinguish self from non-self Innate immunity â¢ Very old.