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Prognostic Significance of NOGO-A/B and NOGO-B Receptor Expression in Malignant Melanoma - A Preliminary Study

Prognostic Significance of NOGO-A/B and NOGO-B Receptor Expression in Malignant Melanoma - A Preliminary Study

Anticancer Research 36(7): 3401-3407

Neurite outgrowth inhibitor type B (NOGO-B) and its receptor (NGBR) were shown to regulate various crucial cellular processes and may be therefore potential factors influencing carcinogenesis. Expression of NOGO-A, NOGO-A/B and NGBR was studied in benign melanocytic lesions and primary tumors and metastases of malignant melanoma (MM). Cytoplasmic expression of the studied antigens was detected in melanocytes and MM cells. NOGO-A/B expression was significantly lower in metastatatic MM cases compared to primary MM tumors (p<0.01) and bening melanocytic lesions (p<0.001). In primary MM tumors, NOGO-A expression intensity positively correlated with NOGO-A/B (r=0.32, p<0.05) and NGBR expression (r=0.53, p<0.0001). NOGO-B and NGBR immunoreactivity correlated negatively with depth of primary MM infiltration (both p<0.01). Moreover, low NOGO-A/B expression was a factor of poor prognosis of primary MM. NOGO-A/B may be a negative prognostic factor of MM.

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Accession: 058635274

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PMID: 27354599

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