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Reduced expression of TRIM21/Ro52 predicts poor prognosis in diffuse large B-cell lymphoma patients with and without rheumatic disease
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- Brauner, S. (författare)
- Karolinska Institutet
- Zhou, W. (författare)
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- Backlin, Carin (författare)
- Uppsala universitet,Reumatologi
- visa fler...
- Green, T. M. (författare)
- Folkersen, L. (författare)
- Lofstrom, B. (författare)
- Xu-Monette, Z. Y. (författare)
- Young, K. H. (författare)
- Pedersen, L. Moller (författare)
- Moller, M. Boe (författare)
- visa färre...
- (creator_code:org_t)
- 2015-05-29
- 2015
- Engelska.
- Ingår i: Journal of Internal Medicine. - : Wiley. - 0954-6820 .- 1365-2796. ; 278:3, s. 323-332
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- ObjectiveTRIM21 (also known as Ro52) is an autoantigen in rheumatic disease and is predominantly expressed in leucocytes. Overexpression is associated with decreased proliferation, and the TRIM21 gene maps to a tumour suppressor locus. We therefore investigated the expression of TRIM21 in patients with diffuse large B-cell lymphoma (DLBCL) and its potential usefulness as a prognostic biomarker. Materials and methodsTRIM21 expression levels were assessed by immunohistochemistry in lymphoma biopsies from three cohorts of patients with DLBCL: 42 patients with rheumatic disease treated with a cyclophosphamide, vincristine, doxorubicin and prednisone (CHOP)-like regimen, 76 CHOP-treated and 196 rituximab-CHOP-treated nonrheumatic patients. Expression was correlated with clinical and biomedical parameters. TRIM21 expression was assessed in relation to lymphocyte proliferation by quantitative PCR and correlated with H-3-thymidine incorporation and propidium iodine staining. ResultsTRIM21 expression levels differed in the lymphomas compared to normal lymphoid tissue, with reduced expression correlating with shorter overall survival in all three cohorts. In the two larger cohorts, progression-free survival was assessed and was also found to correlate with TRIM21 expression. The association was independent of commonly used clinical prognostic scores, lymphoma subtype and several previously reported prognostic biomarkers. In agreement with this clinical observation, we noted an inverse correlation between TRIM21 expression and proliferation of leucocytes invitro. ConclusionsWe show that loss of TRIM21 expression is associated with more aggressive lymphoma and increased proliferation, whereas maintenance of TRIM21 expression is associated with better prognosis in patients with DLBCL. Based on our findings, we suggest that TRIM21 should be considered as a novel biomarker for lymphoma characterization and for predicting patient survival.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Reumatologi och inflammation (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Rheumatology and Autoimmunity (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)
Nyckelord
- biomarker
- diffuse large B-cell lymphoma
- prognosis
- Ro52
- TRIM21
- Patologi
- Pathology
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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- Brauner, S.
- Zhou, W.
- Backlin, Carin
- Green, T. M.
- Folkersen, L.
- Ivanchenko, M.
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- Lofstrom, B.
- Xu-Monette, Z. Y ...
- Young, K. H.
- Pedersen, L. Mol ...
- Moller, M. Boe
- Sundström, Chris ...
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