The human immunodeficiency viruses (HIV) are two species of Lentivirus that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. Without treatment, average survival time after infection with HIV is estimated to be 9 to 11 years, depending on the HIV subtype. In most cases, HIV is a sexually transmitted infection and occurs by contact with or transfer of blood, pre-ejaculate, semen, and vaginal fluids. Research has shown that HIV is untransmittable through condomless sexual intercourse if the HIV-positive partner has a consistently undetectable viral load. Non-sexual transmission can occur from an infected mother to her infant during pregnancy, during childbirth by exposure to her blood or vaginal fluid, and through breast milk. Within these bodily fluids, HIV is present as both free virus particles and virus within infected immune cells.
Virology is the scientific study of viruses – submicroscopic, parasitic organisms of genetic material contained in a protein coat – and virus-like agents. It focuses on the following aspects of viruses: their structure, classification and evolution, their ways to infect and exploit host cells for reproduction, their interaction with host organism physiology and immunity, the diseases they cause, the techniques to isolate and culture them, and their use in research and therapy. Virology is a subfield of microbiology.
The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs in an attempt to control HIV infection. There are several classes of antiretroviral agents that act on different stages of the HIV life-cycle. The use of multiple drugs that act on different viral targets is known as highly active antiretroviral therapy (HAART). HAART decreases the patient's total burden of HIV, maintains function of the immune system, and prevents opportunistic infections that often lead to death. HAART also prevents the transmission of HIV between serodiscordant same sex and opposite sex partners so long as the HIV-positive partner maintains an undetectable viral load.
Kaposi's sarcoma-associated herpesvirus (KSHV) is the ninth known human herpesvirus; its formal name according to the International Committee on Taxonomy of Viruses (ICTV) is Human gammaherpesvirus 8, or HHV-8 in short. Like other herpesviruses, its informal names are used interchangeably with its formal ICTV name. This virus causes Kaposi's sarcoma, a cancer commonly occurring in AIDS patients, as well as primary effusion lymphoma, HHV-8-associated multicentric Castleman's disease and KSHV inflammatory cytokine syndrome. It is one of seven currently known human cancer viruses, or oncoviruses. Even after so many years of discovery of KSHV/HHV8, there is no known cure for KSHV associated tumorigenesis.
In molecular biology, CD4 is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as T helper cells, monocytes, macrophages, and dendritic cells. It was discovered in the late 1970s and was originally known as leu-3 and T4 before being named CD4 in 1984. In humans, the CD4 protein is encoded by the CD4 gene.
Virus latency is the ability of a pathogenic virus to lie dormant (latent) within a cell, denoted as the lysogenic part of the viral life cycle. A latent viral infection is a type of persistent viral infection which is distinguished from a chronic viral infection. Latency is the phase in certain viruses' life cycles in which, after initial infection, proliferation of virus particles ceases. However, the viral genome is not eradicated. The virus can reactivate and begin producing large amounts of viral progeny without the host becoming reinfected by new outside virus, and stays within the host indefinitely.
Phorbol is a natural, plant-derived organic compound. It is a member of the tigliane family of diterpenes. Phorbol was first isolated in 1934 as the hydrolysis product of croton oil, which is derived from the seeds of the purging croton, Croton tiglium. The structure of phorbol was determined in 1967. Various esters of phorbol have important biological properties, the most notable of which is the capacity to act as tumor promoters through activation of protein kinase C. They mimic diacylglycerols, glycerol derivatives in which two hydroxyl groups have reacted with fatty acids to form esters. The most common and potent phorbol ester is 12-O-tetradecanoylphorbol-13-acetate (TPA), also called phorbol-12-myristate-13-acetate (PMA), which is used as a biomedical research tool in contexts such as models of carcinogenesis.
Douglas D. Richman is an American infectious diseases physician and medical virologist. Richman's work has focused on the HIV/AIDS pandemic, since its appearance in the early 1980s. His major contributions have been in the areas of treatment, drug resistance, and pathogenicity.
Auranofin is a gold salt classified by the World Health Organization as an antirheumatic agent. It has the brand name Ridaura.
Paul Alan Cox is an American ethnobotanist whose scientific research focuses on discovering new medicines by studying patterns of wellness and illness among indigenous peoples. Cox was born in Salt Lake City in 1953.
AIDS Research Alliance of America (ARAA) was a national community-based 501(c)3 non-profit medical research institution that sought to develop a cure for HIV/AIDS, medical strategies to prevent new HIV infections and better treatments for people living with HIV/AIDS. From 1989 to 2015, ARAA conducted over 150 clinical and pre-clinical studies, ranging from alternative therapies that employed a complementary approach to HIV care to the first in-human HIV vaccine trial. AIDS Research Alliance was partly responsible for "fast-tracking" to market half of today's anti-HIV treatments.
Robert F. Siliciano is a professor of medicine at the Johns Hopkins University School of Medicine and an investigator with the Howard Hughes Medical Institute. Siliciano (sill-ih-CAH-noh) has a joint appointment in the Department of Molecular Biology and Genetics at Johns Hopkins. Siliciano researches the mechanisms by which the human immunodeficiency virus (HIV) remains latent in the human body.
Gladstone Institutes is an independent, non-profit biomedical research organization whose focus is to better understand, prevent, treat and cure cardiovascular, viral and neurological conditions such as heart failure, HIV/AIDS and Alzheimer's disease. Its researchers study these diseases using techniques of basic and translational science. Another focus at Gladstone is building on the development of induced pluripotent stem cell technology by one of its investigators, 2012 Nobel Laureate Shinya Yamanaka, to improve drug discovery, personalized medicine and tissue regeneration.
HIV/AIDS research includes all medical research that attempts to prevent, treat, or cure HIV/AIDS, as well as fundamental research about the nature of HIV as an infectious agent and AIDS as the disease caused by HIV.
Leor S. Weinberger is an American virologist and quantitative biologist. He is credited with discovering the HIV virus latency circuit, which provided the first experimental evidence that stochastic fluctuations ('noise') in gene expression are used for cell fate decisions. He has also pioneered the concept of Therapeutic Interfering Particles, or “TIPs”, which are resistance-proof antivirals. His TED talk on this novel antiviral approach 20 years in the making has been called a "highlight" of TED and received a standing ovation from the live audience.
Bugula neritina is a cryptic species complex of sessile marine animal in the genus Bugula.
Paul A. Wender is an American chemist, focusing in organic chemistry, organometallic chemistry, synthesis, catalysis, chemical biology, imaging, drug delivery, and molecular therapeutics. He is currently the Francis W. Bergstrom Professor of Chemistry at Stanford University and is an Elected Fellow at the American Association for the Advancement of Science and American Academy of Arts and Sciences.
Sharon Ruth Lewin, FRACP, FAHMS is an Australian Infectious Disease physician and researcher, and the inaugural director of The Peter Doherty Institute for Infection and Immunity, a joint venture between the University of Melbourne and the Royal Melbourne Hospital. She leads a multi-disciplinary research team working on mechanisms of HIV latency, clinical trials advancing potential HIV cure strategies and how HIV is affected by co-infections such as Hepatitis B. Lewin has extensive experience in scientific leadership, and is a strong advocate for community engagement and partnership in research.
HSV epigenetics is the epigenetic modification of herpes simplex virus (HSV) genetic code.
Melanie Ott is a German virologist and Senior Investigator at the Gladstone Institute of Virology and Immunology. She is also a Professor of Medicine at the University of California, San Francisco.
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