Investigation of piwil2 expression as a biomarker in solid tumors of childhood

Authors

  • Yilmaz Secilmis Department of Pediatric, Division of Pediatric Emergency, Faculty of Medicine, Erciyes University, Kayseri,Turkey
  • Musa Karakukcu Department of Pediatric, Division of Pediatric Oncology, Faculty of Medicine, Erciyes University, Kayseri,Turkey
  • Ozlem Canoz Department of Pathology, Faculty of Medicine, Erciyes University, Kayseri,Turkey

Keywords:

Biomarker, cancer stem cell, PIWIL 2, solid tumors of childhood

Abstract

Aim: PIWIL 2 belongs to a subgroup of argonaute proteins, which has an essential role in germ cell development and repair. Recent studies have demonstrated PIWIL 2 as a stem cell marker in some solid tumors. In the present study, we aimed to evaluate the expression of PIWIL 2 in childhood solid tumors and to show being a potential marker for a therapeutic drug.
Materials and Methods: The study included 150 patients who were diagnosed with pediatric solid tumor and followed between 2000 and 2011. Solid tumor preparations were stained with polyclonal PIWIL 2 antibody by using immunohistochemical methods.
Results: Assessment of the tumor sub-groups showed that, among 30 patients with neuroblastoma, there was a strong staining in 5 (16.70%) (p=0.020). PIWIL 2 was showed strong staining in 3 (21.40%) osteosarcoma patients (p=0.030). Among 34 patients with a germ cell tumor, there was a strong staining in 6 (17.60%) patients (p=0.040).
Conclusion: Significant PIWIL 2 positivity was found in neuroblastoma, osteosarcoma and germ cell tumors and it can be a potential marker for these tumors. Because of non-tumor tissue involvement in Wilms’ tumor it can be particularly useful in determining surgical margins.

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Published

2021-08-24

How to Cite

Secilmis, Y., Karakukcu, M., & Canoz, O. (2021). Investigation of piwil2 expression as a biomarker in solid tumors of childhood. Annals of Medical Research, 28(8), 1525–1531. Retrieved from https://annalsmedres.org/index.php/aomr/article/view/3880

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