RGD Reference Report - Cytokine profile during latent and slowly progressive primary tuberculosis: a possible role for interleukin-15 in mediating clinical disease. - Rat Genome Database

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Cytokine profile during latent and slowly progressive primary tuberculosis: a possible role for interleukin-15 in mediating clinical disease.

Authors: Abebe, F  Mustafa, T  Nerland, AH  Bjune, GA 
Citation: Abebe F, etal., Clin Exp Immunol. 2006 Jan;143(1):180-92.
RGD ID: 4987456
Pubmed: PMID:16367949   (View Abstract at PubMed)
PMCID: PMC1809553   (View Article at PubMed Central)
DOI: DOI:10.1111/j.1365-2249.2005.02976.x   (Journal Full-text)

Recently, mouse models for latent (LTB) and slowly progressive primary tuberculosis (SPTB) have been established. However, cytokine profiles during the two models are not well established. Using quantitative reverse transcription-polymerase chain reaction (qRT-PCR) we studied the expression levels of interleukin (IL)-2, IL-4, IL-10, IL-12, IL-15, interferon (IFN)-gamma and tumour necrosis factor (TNF)-alpha during the course of LTB and SPTB in the lungs and spleens of B6D2F1Bom mice infected with the H37Rv strain of Mycobacterium tuberculosis (Mtb). The results show that, except for IL-4, cytokine expression levels were significantly higher during SPTB than LTB in both the lungs and spleens. During LTB, all the cytokines (except IL-2 in the lungs) had higher expression levels during the initial period of infection both in the lungs and spleens. During SPTB, the expression levels of IL-15 increased significantly from phases 1 to 3 in the lungs. The expression levels of IL-10, IL-12 and IFN-gamma increased significantly from 2 to 3 in the lungs. IL-10 and IL-15 increased significantly from phases 2 to 3, whereas that of TNF-alpha decreased significantly and progressively from phases 1 to 3 in the spleens. Over-expression of proinflammatory cytokines during active disease has been well documented, but factor(s) underlying such over-expression is not known. In the present study, there was a progressive and significant increase in the expression levels of IL-15, together with Th1 cytokines (IL-12 and IFN-gamma) during SPTB but a significant decrease during LTB. IL-15 is known to up-regulate the production of proinflammatory cytokines, IL-1beta, IL-8, IL-12, IL-17, IFN-gamma and TNF-alpha and has an inhibitory effect on activation-induced cell death. IL-15 is known to be involved in many proinflammatory disease states such as rheumatoid arthritis, sarcoidosis, inflammatory bowel diseases, autoimmune diabetes, etc. Our results, together with the above observations, suggest that IL-15 may play an important role in mediating active disease during Mtb infection.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
tuberculosis  ISOIl15 (Mus musculus)4987456; 4987456mRNA:altered expression:lung and spleenRGD 
tuberculosis  IEP 4987456mRNA:altered expression:lung and spleenRGD 

Objects Annotated

Genes (Rattus norvegicus)
Il15  (interleukin 15)

Genes (Mus musculus)
Il15  (interleukin 15)

Genes (Homo sapiens)
IL15  (interleukin 15)


Additional Information