Enhanced intratumoral expression of RNF2 is a favorable prognostic factor for patients with cutaneous melanoma?
| Autor: | Agnieszka Glińska, Barbara W. Chwirot, Łukasz Kuźbicki, Dariusz Lange, Agata Stanek-Widera |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Oncology medicine.medical_specialty Prognostic factor Metastasis cutaneous melanoma 03 medical and health sciences 0302 clinical medicine Internal medicine medicine intratumoral expression neoplasms business.industry Melanoma Disease progression medicine.disease Tumor Pathology RNF2 (Ring1B) 030104 developmental biology 030220 oncology & carcinogenesis immunohistochemistry Cutaneous melanoma Immunohistochemistry Normal skin business prognostic marker Research Paper |
| Zdroj: | Oncotarget |
| ISSN: | 1949-2553 |
| Popis: | // Łukasz Kuźbicki 1 , Dariusz Lange 2 , Agata Stanek-Widera 2 , Agnieszka Glinska 1 and Barbara W. Chwirot 1 1 Department of Medical Biology, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Torun, Poland 2 Department of Tumor Pathology, Oncology Center – Maria Sklodowska-Curie Institute, Gliwice, Poland Correspondence to: Barbara W. Chwirot, email: bchwirot@umk.pl Keywords: RNF2 (Ring1B); intratumoral expression; immunohistochemistry; prognostic marker; cutaneous melanoma Received: October 18, 2017 Accepted: February 28, 2018 Published: April 03, 2018 ABSTRACT Recent studies involving melanoma cell lines suggest that enhanced expression of epigenetic regulator RNF2 supports proliferation and promotes metastasis. However, it is not clear to what extent those data apply to disease progression and prognosis for melanoma patients. Therefore the aim of the present study was to assess the prognostic power of RNF2 intratumoral expression by melanoma cells. RNF2 was detected immunohistochemically in standard formalin-fixed paraffin-embedded samples of 9 benign nevi, 60 melanomas and 24 nodal metastases. The lowest percentage of RNF2-positive melanocytes found in nevi was comparable to expression levels in normal skin. The RNF2 expression found in melanomas was significantly higher and it was even more enhanced in metastases. The increased occurrence of RNF2 expressing cells was positively correlated with longer patients’ overall survival. Moreover, a negative correlation was found between intratumoral RNF2 expression and number of generated metastatic lesions. Our data indicate that development of melanoma is associated with significant changes in RNF2 intratumoral expression and imply that at least for some patients the enhancement of the expression levels of RNF2 in both primary and metastatic lesions may be considered a favorable prognostic factor in melanoma. |
| Databáze: | OpenAIRE |
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