Anti-centromere antibodies

Immunofluorescence staining pattern of anti-centromere antibodies on HEp-20-10 cells.

A schematic representation of an antibody.

Anti-centromere antibodies (ACAs; often styled solid, anticentromere) are autoantibodies specific to centromere and kinetochore function. They occur in some autoimmune diseases, frequently in limited systemic scleroderma (formerly called CREST syndrome), and occasionally in the diffuse form of scleroderma. They are rare in other rheumatic conditions and in healthy persons.

Anti-centromere antibodies are found in approximately 60% of patients with limited systemic scleroderma and in 15% of those with the diffuse form of scleroderma. The specificity of this test is >98%. Thus, a positive anti-centromere antibody finding is strongly suggestive of limited systemic scleroderma. Anti-centromere antibodies present early in the course of disease and are notably predictive of limited cutaneous involvement and a decreased likelihood of aggressive internal organ involvement, such as fibrosis in the lungs.^[1]

When present in primary biliary cirrhosis, ACAs are prognostic of portal hypertension such that serum ACA levels correlate with the severity of portal hypertension.^[2]

References

↑ JB Imboden, DB Hellmann, JH Stone. Current Rheumatology Diagnosis & Treatment, Second Edition. McGraw-Hill, 2007.
↑ Nakamura M, Kondo H, Mori T, et al. (2007). "Anti-gp210 and anti-centromere antibodies are different risk factors for the progression of primary biliary cirrhosis". Hepatology. 45 (1): 118–27. doi:10.1002/hep.21472. PMID 17187436.

Medical test: Antibodies: autoantibodies

Anti-nuclear antibody	PBC: Anti-gp210 Anti-p62 Anti-sp100 ENA: Anti-topoisomerase/Scl-70 Anti-Jo1 ENA4 Anti-Sm Anti-nRNP Anti-Ro Anti-La Anti-centromere Anti-dsDNA

Anti-mitochondrial antibody	Anti-cardiolipin

Anti-cytoplasm antibody	Anti-neutrophil cytoplasmic C-ANCA P-ANCA Anti-smooth muscle Anti-actin Anti-TPO/Antimicrosomal

Cell membrane	Anti-ganglioside Anti-GBM Anti-glutamate

Extracellular	Anti-thrombin Lupus anticoagulant Coeliac disease: Anti-transglutaminase Anti-gliadin not autoantibody RA Rheumatoid factor/anti-IgG Anti-citrullinated peptide

Multiple locations	Anti-phospholipid Anti-apolipoprotein

This article is issued from Wikipedia - version of the 5/26/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.