Autoimmune polyendocrine syndrome type 1

Autoimmune polyendocrine syndrome type 1
Classification and external resources
ICD-10	E31.0
ICD-9	258.1
OMIM	240300
DiseasesDB	29212
eMedicine	med/1867
MeSH	D016884

Autoimmune polyendocrine syndrome type 1 (APS-1), also known as autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED), Whitaker syndrome,^[1] or candidiasis-hypoparathyroidism-Addison's disease-syndrome,^[2] is a subtype of autoimmune polyendocrine syndrome, in which multiple endocrine glands dysfunction as a result of autoimmunity. It is a genetic disorder inherited in autosomal recessive fashion due to a defect in the AIRE (Auto immune regulator) gene which is located on chromosome 21 and normally confers immune tolerance.

1 Signs and symptoms
2 Genetics
3 References
4 External links

Signs and symptoms

Its main features include:

A mild immune deficiency, leading to persistent mucosal and cutaneous infections with candida yeasts. There is also decreased function of the spleen (hyposplenism).
Autoimmune dysfunction of the parathyroid gland (leading to hypocalcaemia) and the adrenal gland (Addison's disease: hypoglycemia, hypotension and severe reactions in disease).
Other disease associations are:
- hypothyroidism
- hypogonadism and infertility
- vitiligo (depigmentation of the skin)
- alopecia (baldness)
- malabsorption
- pernicious anemia
- chronic active (autoimmune) hepatitis

Genetics

It is caused in autosomal recessive manner due to a defect in AIRE gene mapped to 21q22.3.^[3]

References

^ "Polyglandular Autoimmune Syndrome, Type I - eMedicine Endocrinology". Medscape. Retrieved 2009-04-17.
^ Greenspan, Francis S.; Gardner, David C. (2004). Basic clinical endocrinology. New York: McGraw-Hill. p. 103.

^ Buzi, F; Badolato, R; Mazza, C; Giliani, S; Notarangelo, LD; Radetti, G; Plebani, A; Notarangelo, LD (Jul 2003). "Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome: time to review diagnostic criteria?". The Journal of clinical endocrinology and metabolism 88 (7): 3146–8.

Further reading

Buzi, F; Badolato, R; Mazza, C; Giliani, S; Notarangelo, LD; Radetti, G; Plebani, A; Notarangelo, LD (Jul 2003). "Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy syndrome: time to review diagnostic criteria?". The Journal of clinical endocrinology and metabolism 88 (7): 3146–8.

Peterson, P; Pitakanen, J; Sillanpaa, N; Krohn, K (2004). "Autoimmune polyendocrinopathy candidiasis ectodermal dystrophy (APECED): a model disease to study molecular aspects of endocrine autoimmunity". Clinical and Experimental Immunology 135 (3): 348–357.

Capalbo, Donatella; De Martino, Lucia; Giardino, Giuliana; Di Mase, Raffaella; Di Donato, Iolanda; Parenti, Giancarlo; Vajro, Pietro; Pignata, Claudio; Salerno, Mariacarolina (2012). "Autoimmune Polyendocrinopathy Candidiasis Ectodermal Dystrophy: Insights into Genotype-Phenotype Correlation". International Journal of Endocrinology 2012: 1–9.

External links

Autoimmune polyglandular syndrome, type 1 on Genetics Home Reference
EurAPS, a EU-funded consortium doing translational research on this condition

Endocrine pathology: endocrine diseases (E00–E35, 240–259)

Pancreas/
glucose
metabolism

Hypofunction	Diabetes mellitus types: type 1 type 2 MODY 1 2 3 4 5 6 complications coma angiopathy ketoacidosis nephropathy neuropathy retinopathy cardiomyopathy insulin receptor (Rabson–Mendenhall syndrome) Insulin resistance

Hyperfunction	Hypoglycemia beta cell (Hyperinsulinism) G cell (Zollinger–Ellison syndrome)

Hypothalamic/
pituitary axes

Hypothalamus

gonadotropin
- Kallmann syndrome
- Adiposogenital dystrophy
CRH (Tertiary adrenal insufficiency)
vasopressin (Neurogenic diabetes insipidus)
general (Hypothalamic hamartoma)

Pituitary

Hyperpituitarism	anterior Acromegaly Hyperprolactinaemia Pituitary ACTH hypersecretion posterior (SIADH) general (Nelson's syndrome)

Hypopituitarism	anterior Kallmann syndrome Growth hormone deficiency ACTH deficiency/Secondary adrenal insufficiency GnRH insensitivity FSH insensitivity LH/hCG insensitivity posterior (Neurogenic diabetes insipidus) general Empty sella syndrome Pituitary apoplexy Sheehan's syndrome Lymphocytic hypophysitis

Thyroid

Hypothyroidism	Iodine deficiency Cretinism Congenital hypothyroidism Myxedema Euthyroid sick syndrome

Hyperthyroidism	Hyperthyroxinemia Thyroid hormone resistance Familial dysalbuminemic hyperthyroxinemia Hashitoxicosis Thyrotoxicosis factitia Graves' disease

Thyroiditis	Acute infectious Subacute De Quervain's Subacute lymphocytic Autoimmune/chronic Hashimoto's Postpartum Riedel's

Goitre	Endemic goitre Toxic nodular goitre Toxic multinodular goiter Thyroid nodule

Parathyroid

Hypoparathyroidism	Hypoparathyroidism Pseudohypoparathyroidism Pseudopseudohypoparathyroidism

Hyperparathyroidism	Primary Secondary Tertiary Osteitis fibrosa cystica

Adrenal

Hyperfunction	aldosterone: Hyperaldosteronism/Primary aldosteronism Conn syndrome Bartter syndrome Glucocorticoid remediable aldosteronism AME Liddle's syndrome 17α CAH cortisol: Cushing's syndrome (Pseudo-Cushing's syndrome) sex hormones: 21α CAH 11β CAH

Hypofunction/ Adrenal insufficiency (Addison's, WF)	aldosterone: Hypoaldosteronism 21α CAH 11β CAH cortisol: CAH Lipoid 3β 11β 17α 21α sex hormones: 17α CAH

Gonads

testicular: enzymatic
Androgen receptor (Androgen insensitivity syndrome)

general: Hypogonadism (Delayed puberty)
Hypergonadism
- Precocious puberty
Hypoandrogenism
Hypoestrogenism
Hyperandrogenism
Hyperestrogenism

Height

Multiple

Autoimmune polyendocrine syndrome multiple
- APS1
- APS2
Carcinoid syndrome
Multiple endocrine neoplasia
- 1
- 2A
- 2B
Progeria
Woodhouse-Sakati syndrome

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Immune disorders: hypersensitivity and autoimmune diseases (279.5–6)

Type I/allergy/atopy
(IgE)

Foreign	Atopic eczema Allergic urticaria Allergic rhinitis (Hay fever) Allergic asthma Anaphylaxis Food allergy Milk Egg Peanut Tree nut Seafood Soy Wheat Penicillin allergy

Autoimmune	none

Type II/ADCC

- IgM
- IgG

Foreign

Hemolytic disease of the newborn

Autoimmune

Cytotoxic	Autoimmune hemolytic anemia Idiopathic thrombocytopenic purpura Bullous pemphigoid Pemphigus vulgaris Rheumatic fever Goodpasture's syndrome

"Type V"/receptor	Graves' disease Myasthenia gravis Pernicious anemia

Type III
(Immune complex)

Foreign	Henoch–Schönlein purpura Hypersensitivity vasculitis Reactive arthritis Farmer's lung Post-streptococcal glomerulonephritis Serum sickness Arthus reaction

Autoimmune	Systemic lupus erythematosus Subacute bacterial endocarditis Rheumatoid arthritis

Type IV/cell-mediated
(T cells)

Foreign	Allergic contact dermatitis Mantoux test

Autoimmune	Diabetes mellitus type 1 Hashimoto's thyroiditis Guillain–Barré syndrome Multiple sclerosis Coeliac disease Giant-cell arteritis

GVHD	Transfusion-associated graft versus host disease

Unknown/
multiple

Foreign	Hypersensitivity pneumonitis Allergic bronchopulmonary aspergillosis Transplant rejection Latex allergy (I+IV)

Autoimmune	Sjögren's syndrome Autoimmune hepatitis Autoimmune polyendocrine syndrome APS1 APS2 Autoimmune adrenalitis Systemic autoimmune disease

: LMC

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Genetic disorder, protein biosynthesis: Transcription factor/coregulator deficiencies

(1) Basic domains

1.2	Feingold syndrome Saethre–Chotzen syndrome

1.3	Tietz syndrome

(2) Zinc finger
DNA-binding domains

2.1	(Intracellular receptor): Thyroid hormone resistance Androgen insensitivity syndrome PAIS MAIS CAIS Kennedy's disease PHA1AD pseudohypoaldosteronism Estrogen insensitivity syndrome X-linked adrenal hypoplasia congenita MODY 1 Familial partial lipodystrophy 3 SF1 XY gonadal dysgenesis

2.2	Barakat syndrome Tricho–rhino–phalangeal syndrome

2.3	Greig cephalopolysyndactyly syndrome/Pallister–Hall syndrome Denys–Drash syndrome Duane-radial ray syndrome MODY 7 MRX 89 Townes–Brocks syndrome Acrocallosal syndrome Myotonic dystrophy 2

2.5	Autoimmune polyendocrine syndrome type 1

(3) Helix-turn-helix domains

3.1	ARX Ohtahara syndrome Lissencephaly X2 MNX1 Currarino syndrome HOXD13 SPD1 Synpolydactyly PDX1 MODY 4 LMX1B Nail–patella syndrome MSX1 Tooth and nail syndrome OFC5 PITX2 Axenfeld syndrome 1 POU4F3 DFNA15 POU3F4 DFNX2 ZEB1 Posterior polymorphous corneal dystrophy Fuchs' dystrophy 3 ZEB2 Mowat–Wilson syndrome

3.2	PAX2 Papillorenal syndrome PAX3 Waardenburg syndrome 1&3 PAX4 MODY 9 PAX6 Gillespie syndrome Coloboma of optic nerve PAX8 Congenital hypothyroidism 2 PAX9 STHAG3

3.3	FOXC1 Axenfeld syndrome 3 Iridogoniodysgenesis, dominant type FOXC2 Lymphedema–distichiasis syndrome FOXE1 Bamforth–Lazarus syndrome FOXE3 Anterior segment mesenchymal dysgenesis FOXF1 ACD/MPV FOXI1 Enlarged vestibular aqueduct FOXL2 Premature ovarian failure 3 FOXP3 IPEX

3.5	IRF6 Van der Woude syndrome Popliteal pterygium syndrome

(4) β-Scaffold factors
with minor groove contacts

4.2	Hyperimmunoglobulin E syndrome

4.3	Holt–Oram syndrome Li–Fraumeni syndrome Ulnar–mammary syndrome

4.7	Campomelic dysplasia MODY 3 MODY 5 SF1 SRY XY gonadal dysgenesis Premature ovarian failure 7 SOX10 Waardenburg syndrome 4c Yemenite deaf-blind hypopigmentation syndrome

4.11	Cleidocranial dysostosis

(0) Other transcription factors

0.6	Kabuki syndrome

Ungrouped

Transcription coregulators

Coactivator:	CREBBP Rubinstein–Taybi syndrome

Corepressor:	HR (Atrichia with papular lesions)

See also

structural
DNA/RNA/protein synthesis
membrane
transduction

Autoimmune polyendocrine syndrome type 1