RGD Reference Report - Ablation of T-helper 1 cell derived cytokines and of monocyte-derived tumor necrosis factor-alpha in hereditary hemorrhagic telangiectasia: immunological consequences and clinical considerations. - Rat Genome Database

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Ablation of T-helper 1 cell derived cytokines and of monocyte-derived tumor necrosis factor-alpha in hereditary hemorrhagic telangiectasia: immunological consequences and clinical considerations.

Authors: Amati, L  Passeri, ME  Resta, F  Triggiani, V  Jirillo, E  Sabba, C 
Citation: Amati L, etal., Curr Pharm Des. 2006;12(10):1201-8.
RGD ID: 10450733
Pubmed: PMID:16611101   (View Abstract at PubMed)

Experimental evidences on the adaptive immune response in patients with hereditary hemorragic telagiectasia (HHT) are lacking. Here, we report in 9 patients with HHT a multiple deficit involving the intracellular expression of T helper (h)1-derived cytokines [Interferon (IFN)-gamma, Interleukin (IL)-2 and Tumor Necrosis Factor (TNF)-alpha] and of monocyte-derived TNF-alpha. On the other hand, percentages of Th2-derived cytokines (IL-4, IL-5 and IL-10) were normal or, in some cases, above normality. Quite interestingly, monocyte-derived IL-10 was detectable in 5 out of 9 patients in a percentage of cells comparable to controls or exceeding normal levels. Taken together, these data point out, in HHT, an ablation of Th1-responses, while Th2-type cytokines are preserved, thus exerting either a suppressive effect on Th1-cells (via IL-4 and IL-10) or an antiinflammatory response on monocyte-derived TNF-alpha (via IL-10). Furthermore, monocyte-derived IL-10 may also contribute to the antiinflammatory activity seen in HHT. According to current literature even if patients with HHT do not exhibit certain diseases, such as autoimmune diseases, cancer and abnormal responses to pathogens, the observed immune deficits need to be diagnosed and therapeutically corrected.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
hereditary hemorrhagic telangiectasia  IEP 10450733protein:decreased expression:blood and lymphocyteRGD 
hereditary hemorrhagic telangiectasia  ISOTNF (Homo sapiens)10450733; 10450733protein:decreased expression:blood and lymphocyteRGD 

Objects Annotated

Genes (Rattus norvegicus)
Tnf  (tumor necrosis factor)

Genes (Mus musculus)
Tnf  (tumor necrosis factor)

Genes (Homo sapiens)
TNF  (tumor necrosis factor)


Additional Information