RGD Reference Report - Immunoregulatory cytokines gene polymorphisms in Egyptian patients affected with acquired aplastic anemia. - Rat Genome Database

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Immunoregulatory cytokines gene polymorphisms in Egyptian patients affected with acquired aplastic anemia.

Authors: El Mahgoub, IR  Afify, RA  Botros, SK  Fawzy, R 
Citation: El Mahgoub IR, etal., Ann Hematol. 2014 Jun;93(6):923-9. doi: 10.1007/s00277-013-1992-x. Epub 2013 Dec 21.
RGD ID: 11073601
Pubmed: PMID:24362456   (View Abstract at PubMed)
DOI: DOI:10.1007/s00277-013-1992-x   (Journal Full-text)

The immune system is thought to play an important role in aplastic anemia (AA) in light of recent findings of hematologic reconstitution after immunosuppressive therapy. T cell activation, apoptosis, and the cytokines interferon- and TNF-alpha are suspected to play a role in the suppression of growth of progenitor cells and induced apoptosis in CD34 target cells, TGFbeta is a multifunctional peptide, usually produced in latent form and requiring activation to produce a biological response. Also, TGF-beta1 has been described as an important negative regulator of haemopoiesis. Over production of IL-6 is described in AA but is of unknown pathophysiological significance. To investigate the role of cytokine gene polymorphisms (IL-6/-174, TNF-alpha/-308, IFN-gamma/+874, and TGFbeta1/-509) in patients with acquired AA to assess if genotypes associated with higher or lower production were more prevalent than in established control population and to study the possible association of these genotypes with the disease severity. Fifty AA patients were included in this study. Polymerase chain reaction-amplification refractory mutation system (PCR-ARMS) technique was used to detect INF-gamma single nucleotide polymorphism -874A/T, and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to assess IL-6-174 C/G, TNF-alpha-308G/A, and TGFb1-509C/T gene polymorphisms. Genotypes associated with high production of TNF-alpha, TGF-beta and IFN-gamma, and IL-6 were more frequent in patients than in control; no association was found between the presence of hypersecretory genotypes and the disease severity.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
aplastic anemia susceptibilityIAGP 11073601DNA:polymorphism: :509C>T(human)RGD 
aplastic anemia susceptibilityISOTGFB1 (Homo sapiens)11073601; 11073601DNA:polymorphism: :509C>T(human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tgfb1  (transforming growth factor, beta 1)

Genes (Mus musculus)
Tgfb1  (transforming growth factor, beta 1)

Genes (Homo sapiens)
TGFB1  (transforming growth factor beta 1)


Additional Information