Inborn errors of immunity

Inborn errors of immunity (IEI) are genetic mutations that result in an increased susceptibility to infectious disease, autoinflammatory disease, allergy, or autoimmunity. Inborn errors include, but are not limited to, primary immunodeficiencies.[1][2] As of 2020, there are 431 identified inborn errors of immunity.[3]

Types

As of 2020, there are 431 IEIs,[3] which are divided into three categories:[4]

Causes

A variety of mutations can cause inborn errors of immunity. These include loss of function, gain of function, and loss of expression.[2]

Epidemiology

IEIs were historically considered very rare, affecting only 1 in 10,000 – 50,000 births. As more IEIs are described and clinical phenotypes are defined more precisely, their true prevalence may be more common. More recent estimates place prevalence at 1 in 1,000 – 10,000 births.[2]

History

The first human IEI described was epidermodysplasia verruciformis in 1946,[4] with the first primary immunodeficiency (X-linked agammaglobulinemia) described in 1952.[5]

In 1973, the World Health Organization (WHO) established the Inborn Errors of Immunity Committee for the purpose of classifying and identifying immune defects in humans. In the 1990s, the WHO decided to focus on more common disease, and the committee was taken on by the International Union of Immunological Societies. This relationship was made official in 2008.[6]

See also

References
  1. Tangye, Stuart G.; Al-Herz, Waleed; Bousfiha, Aziz; Chatila, Talal; Cunningham-Rundles, Charlotte; Etzioni, Amos; Franco, Jose Luis; Holland, Steven M.; Klein, Christoph; Morio, Tomohiro; Ochs, Hans D.; Oksenhendler, Eric; Picard, Capucine; Puck, Jennifer; Torgerson, Troy R. (2020). "Human Inborn Errors of Immunity: 2019 Update on the Classification from the International Union of Immunological Societies Expert Committee". Journal of Clinical Immunology. 40 (1): 24–64. doi:10.1007/s10875-019-00737-x. ISSN 0271-9142. PMC 7082301. PMID 31953710.
  2. Tangye, Stuart G.; Al-Herz, Waleed; Bousfiha, Aziz; Chatila, Talal; Cunningham-Rundles, Charlotte; Etzioni, Amos; Franco, Jose Luis; Holland, Steven M.; Klein, Christoph; Morio, Tomohiro; et al. (2020). "Correction to: Human Inborn Errors of Immunity: 2019 Update on the Classification from the International Union of Immunological Societies Expert Committee". Journal of Clinical Immunology. 40 (1): 65. doi:10.1007/s10875-020-00763-0. PMC 7645445. PMID 32086639. S2CID 211234502.
  3. Notarangelo, Luigi D.; Bacchetta, Rosa; Casanova, Jean Laurent; Su, Helen C. (2020). "Human inborn errors of immunity: An expanding universe". Science Immunology. 5 (49): eabb1662. doi:10.1126/sciimmunol.abb1662. PMC 7647049. PMID 32651211.
  4. Casanova, Jean-Laurent; Abel, Laurent (2021). "Lethal Infectious Diseases as Inborn Errors of Immunity: Toward a Synthesis of the Germ and Genetic Theories". Annual Review of Pathology: Mechanisms of Disease. 16: 23–50. doi:10.1146/annurev-pathol-031920-101429. PMC 7923385. PMID 32289233.
  5. Casanova, Laurent; Casanova, Jean-Laurent (2005). "Inborn errors of immunity to infection". Journal of Experimental Medicine. 202 (2): 197–201. doi:10.1084/jem.20050854. PMC 2212996. PMID 16027233.
  6. "Inborn Errors of Immunity Committee (IEI)". International Union of Immunological Societies. 22 July 2019. Retrieved 11 July 2020.
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