Human papillomavirus (HPV) is a DNA virus from the papillomavirus family that is capable of infecting humans. Like all papillomaviruses, HPVs establish productive infections only in keratinocytes of the skin or mucous membranes.ersistent infection with high-risk HPV typesâdifferent from the ones that cause skin wartsâmay progress to precancerous lesions and invasive cancer. High-risk HPV infection is a cause of nearly all cases of cervical cancer.
Summary. The thymus gland acts to regulate the immune system through the development of immune cells responsible for cell mediated immunity. In addition to immune function, the thymus also produces hormones that promote growth and maturation.Thymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development.The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.hymic hormones influence structures of the endocrine system, including the pituitary gland and adrenal glands, to assist in growth and sexual development. The thymus and its hormones also influence other organs and organ systems including the kidneys, spleen, reproductive system, and central nervous system.
Thymus: An Essential Gland of the Immune System. The thymus is essential to the maturation and maintenance of the cells of the immune system. It exerts its influence by liberating hormonal factors that act inside the thymus itself as well as elsewhere in the body.he thymus gland creates the T-4 helper white blood cells that perform their specialized job in the human body of locating invaders such as viruses, bacteria, or abnormal cells. The thymus gland also sends out the T-8 killer white blood cells to find invaders and destroy them.