Identification of survivin as a promising target for the immunotherapy of adult B-cell acute lymphoblastic leukemia

Autor: Payalben Savaliya, Evelien Smits, Ken I. Mills, Alison H. Banham, Laurie Freire Boullosa, Cindy Lee, Stephanie Bonney, Barbara-Ann Guinn, Hannah Wickenden, Laurence Orchard, Kim Orchard
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Oncotarget
Boullosa, L F, Savaliya, P, Bonney, S, Orchard, L, Wickenden, H, Lee, C, Smits, E, Banham, A H, Mills, K I, Orchard, K & Guinn, B A 2017, ' Identification of survivin as a promising target for the immunotherapy of adult B-cell acute lymphoblastic leukemia ', Oncotarget, vol. 9, no. 3, pp. 3853-3866 . https://doi.org/10.18632/oncotarget.23380
ISSN: 1949-2553
DOI: 10.18632/oncotarget.23380
Popis: B-cell acute lymphoblastic leukemia (B-ALL) is a rare heterogeneous disease characterized by a block in lymphoid differentiation and a rapid clonal expansion of immature, non-functioning B cells. Adult B-ALL patients have a poor prognosis with less than 50% chance of survival after five years and a high relapse rate after allogeneic haematopoietic stem cell transplantation. Novel treatment approaches are required to improve the outcome for patients and the identification of B-ALL specific antigens are essential for the development of targeted immunotherapeutic treatments.We examined twelve potential target antigens for the immunotherapy of adult B-ALL. RT-PCR indicated that only survivin and WT1 were expressed in B-ALL patient samples (7/11 and 6/11, respectively) but not normal donor control samples (0/8). Real-time quantitative (RQ)-PCR showed that survivin was the only antigen whose transcript exhibited significantly higher expression in the B-ALL samples (n = 10) compared with healthy controls (n = 4)(p = 0.015). Immunolabelling detected SSX2, SSX2IP, survivin and WT1 protein expression in all ten B-ALL samples examined, but survivin was not detectable in healthy volunteer samples. To determine whether these findings were supported by the analyses of a larger cohort of patient samples, we performed metadata analysis on an already published microarray dataset. We found that only survivin was significantly over-expressed in B-ALL patients (n = 215) compared to healthy B-cell controls (n = 12)(p = 0.013).We have shown that survivin is frequently transcribed and translated in adult B-ALL, but not healthy donor samples, suggesting this may be a promising target patient group for survivin-mediated immunotherapy.
Databáze: OpenAIRE