Autoimmune polyendocrine syndrome pathophysiology

Autoimmune polyendocrine syndrome Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

Autoimmune polyendocrine syndrome are a group of autoimmune disorders against multiple (poly) endocrine organs, although non endocrine organs may be affected. Autoimmune polyendocrine syndrome is also known as polyglandular autoimmune syndromes and polyendocrine autoimmune syndromes.

Pathophysiology

Genetics

• Type I: As opposed to type 2, this syndrome inherits in an autosomal recessive fashion and is due to a defect in AIRE ("autoimmune regulator"), a gene located on the 21st chromosome. Normal function of AIRE, a transcription factor, appears to be to confer immune tolerance for antigens from endocrine organs.

• Type 2 : It is heterogenous, occurs more often and has not been linked to one gene. Rather, patients are at a higher risk when they carry a particular HLA genotype (DQ2, DQ8 and DRB1*0404).

• XPID: This is due to mutation of the FOXP3 gene on the X chromosome. Most patients develop diabetes and diarrhea as neonates and many die due to autoimmune activity against many organs. Boys are affected, while girls are carriers and might suffer mild disease.

Pathophysiology

Pathogenesis

• The exact pathogenesis of [disease name] is not fully understood.

OR

• It is thought that [disease name] is the result of / is mediated by / is produced by / is caused by either [hypothesis 1], [hypothesis 2], or [hypothesis 3].
• [Pathogen name] is usually transmitted via the [transmission route] route to the human host.
• Following transmission/ingestion, the [pathogen] uses the [entry site] to invade the [cell name] cell.
• [Disease or malignancy name] arises from [cell name]s, which are [cell type] cells that are normally involved in [function of cells].
• The progression to [disease name] usually involves the [molecular pathway].
• The pathophysiology of [disease/malignancy] depends on the histological subtype.

Genetics

• [Disease name] is transmitted in [mode of genetic transmission] pattern.
• Genes involved in the pathogenesis of [disease name] include [gene1], [gene2], and [gene3].
• The development of [disease name] is the result of multiple genetic mutations.

Gross Pathology

• On gross pathology, [feature1], [feature2], and [feature3] are characteristic findings of [disease name].

Microscopic Pathology

• On microscopic histopathological analysis, [feature1], [feature2], and [feature3] are characteristic findings of [disease name].