University of Oulu

Chan, M. C., Savela, J., Ollikainen, R. K., Teppo, H.-R., Miinalainen, I., Pirinen, R., Kari, E. J. M., Kuitunen, H., Turpeenniemi-Hujanen, T., Kuittinen, O., & Kuusisto, M. E. L. (2021). Testis-Specific Thioredoxins TXNDC2, TXNDC3, and TXNDC6 Are Expressed in Both Testicular and Systemic DLBCL and Correlate with Clinical Disease Presentation. Oxidative Medicine and Cellular Longevity, 2021, 8026941.

Testis-specific thioredoxins TXNDC2, TXNDC3, and TXNDC6 are expressed in both testicular and systemic DLBCL and correlate with clinical disease presentation

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Author: Chan, Mikko C.1,2; Savela, Janette1,2; Ollikainen, Riina K.1,2;
Organizations: 1Cancer and Translational Medicine Research Unit, University of Oulu, Finland
2Department of Oncology and Radiotherapy and Medical Research Center, Oulu University Hospital, Oulu, Finland
3Department of Pathology, Oulu University Hospital, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.7 MB)
Persistent link:
Language: English
Published: Hindawi, 2021
Publish Date: 2021-04-16


DLBCL is the most common type of non-Hodgkin lymphoma with a substantial group of patients suffering a poor prognosis. Therefore more specific markers are required for better understanding of disease biology and treatment. This study demonstrates that testis-specific antioxidant enzymes TXNDC2, TXNDC3, and TXNDC6 alongside oxidative stress marker 8-OHdG are expressed in both testicular and systemic DLBCL, and their presence or absence has correlations with clinical risk factors such as the number of extranodal effusion, the appearance of B-symptoms, and treatment response. Biopsy samples were collected from 28 systemic and 21 testicular male DLBCL patients. The samples were histostained with TXNDC2, TXNDC3, TXNDC6, and 8-OHdG, then graded by a hematopathologist blinded to clinical data. Immunoelectron microscopy was used as a second method to confirm the reliability of the acquired immunohistochemistry data. The absence of nuclear TXNDC2 expression in testicular DLBCL cells correlated with worse primary treatment response, cytoplasmic TXNDC3 expression in testicular and systemic DLBCL associated with lower frequency of B-symptoms, and TXNDC6 expression in cytoplasm in systemic DLBCL had a clinical significance with higher LD levels suggesting a role in the biological nature of these lymphomas. Overall, TXNDC3 cytoplasmic expression is correlated with a more positive outcome in both testicular and systemic DLBCL, while TXNDC6 cytoplasmic expression is associated with a negative outcome in systemic DLBCL.

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Series: Oxidative medicine and cellular longevity
ISSN: 1942-0900
ISSN-E: 1942-0994
ISSN-L: 1942-0900
Volume: 2021
Article number: 8026941
DOI: 10.1155/2021/8026941
Type of Publication: A1 Journal article – refereed
Field of Science: 3122 Cancers
Funding: The authors wish to acknowledge funding from the Väisänen fund in Terttu foundation and MRC Oulu.
Copyright information: Copyright © 2021 Mikko C. Chan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.