Background: Most childhood cancer survivors will develop ionizing radiation treatment-related health conditions that, in many instances, resemble age-associated pathologies. Treatment-induced premature senescence could be an underlying mechanism.Findings: Here we wanted to know whether the expression of p16INK4a, a senescence/aging biomarker, is increased in skin biopsies of acute lymphoblastic leukemia survivors (ALL), previously exposed to chemotherapy and radiation therapy. Several years post-treatments, we found p16INK4a mRNA levels are 5.8 times higher in scalp skin biopsies (targeted by cranial irradiation therapy) compared to buttocks skin biopsies (n = 10, p = 0.01).Conclusions: These results demonstrate for the first time that premature senescence is induced in pediatric cancer survivors and that p16INK4a expression could be used as a potential biomarker in this population. © 2013 Marcoux et al.; licensee BioMed Central Ltd.
CITATION STYLE
Marcoux, S., Le, O. N. L., Langlois-Pelletier, C., Laverdière, C., Hatami, A., Robaey, P., & Beauséjour, C. M. (2013). Expression of the senescence marker p16INK4a in skin biopsies of acute lymphoblastic leukemia survivors: A pilot study. Radiation Oncology, 8(1). https://doi.org/10.1186/1748-717X-8-252
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