1. Thymopoiesis in Pre- and Post-Hematopoietic Stem Cell Transplantation
- Author
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Luis Klaus A. da Rocha, Samar Freschi de Barros, Francine Bandeira, Alexia Bollini, Lucia Helena de A. Testa, Anderson João Simione, Marina de O. e Souza, Lilian P. Zanetti, Leila Cibele S. de Oliveira, Ana Claúdia F. dos Santos, Mair Pedro de Souza, Vergílio Antônio R. Colturado, Jorge Kalil, Clarisse M. Machado, and Luiza Guilherme
- Subjects
T-cell receptor excision circles ,T-cell receptor gene ,autologous hematopoietic stem cell transplantation ,allogeneic hematopoietic stem cell transplantation ,malignant hematological diseases ,immune reconstitution ,Immunologic diseases. Allergy ,RC581-607 - Abstract
Hematopoietic stem cell transplantation (HSCT) is an important therapeutic option for some hematological diseases. However, patients who undergo HSCT acquire a state of immunodeficiency that causes significant mortality. Reconstitution of thymic function is needed to support the immune system. One way to measure thymic function is through T-cell receptor excision circle (TREC) quantification. TRECs are generated by T-cell receptor gene rearrangements during T-cell maturation in the thymus and represent a reliable marker for thymic output. In this study, we aimed to assess aging and malignant hematological diseases as two important factors that may influence thymic output before HSCT. We observed that patients before HSCT presented signal joint TREC (sjTREC) numbers lower than 606.55 copies/μg DNA (low values) compared with healthy individuals, with an odds ratio (OR) of 12.88 [95% confidence interval (CI): 5.26–31.53; p
- Published
- 2018
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