The effect of a single injection of irinotecan on the development of enamel in the Wistar rats

The effect of a single injection of irinotecan on the development of enamel in the Wistar rats Cancer is the second most frequent cause of death in children. Because the prognosis for childhood malignancies has improved, attention has now focused on long‐term consequences of cancer treatment. The immediate effects of chemotherapy on soft tissues have been well described; however, there is less information about long‐term effects of chemotherapy on the development of dental tissues. To test the association between the effect of chemotherapy on enamel development, we examined two groups of rats: one that had received an intraperitoneal dose of 200 mg/kg of irinotecan, whereas the other (control) group had received vehicle only. Rats were killed at 6, 48 and 96 hr post‐injection; the mandibles dissected out, fixed for histological evaluation and scanned for mineralization defects by Micro‐CT. Our results showed structural changes in the ameloblast layer along with a significant reduction in mineralization and thickness of enamel at 96 hr after chemotherapy. These data demonstrate that irinotecan induces structural changes in forming enamel that become apparent after anticancer chemotherapy treatment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Cellular and Molecular Medicine Wiley

The effect of a single injection of irinotecan on the development of enamel in the Wistar rats

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
Copyright © 2018 John Wiley & Sons Ltd and Foundation for Cellular and Molecular Medicine
ISSN
1582-1838
eISSN
1582-4934
D.O.I.
10.1111/jcmm.13415
Publisher site
See Article on Publisher Site

Abstract

Cancer is the second most frequent cause of death in children. Because the prognosis for childhood malignancies has improved, attention has now focused on long‐term consequences of cancer treatment. The immediate effects of chemotherapy on soft tissues have been well described; however, there is less information about long‐term effects of chemotherapy on the development of dental tissues. To test the association between the effect of chemotherapy on enamel development, we examined two groups of rats: one that had received an intraperitoneal dose of 200 mg/kg of irinotecan, whereas the other (control) group had received vehicle only. Rats were killed at 6, 48 and 96 hr post‐injection; the mandibles dissected out, fixed for histological evaluation and scanned for mineralization defects by Micro‐CT. Our results showed structural changes in the ameloblast layer along with a significant reduction in mineralization and thickness of enamel at 96 hr after chemotherapy. These data demonstrate that irinotecan induces structural changes in forming enamel that become apparent after anticancer chemotherapy treatment.

Journal

Journal of Cellular and Molecular MedicineWiley

Published: Jan 1, 2018

Keywords: ; ; ; ; ; ;

References

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