Zhonghua bing li xue za zhi = Chinese journal of pathology · 2007
[Expression of neutral endopeptidase and motility-related protein-1 in cutaneous malignant melanoma].
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Wu Yan, Zhang Xiao-bing, Liu Hou-jun, Zheng Li-duan, Li Jia-wen, Lin Yun
Аннотация
OBJECTIVE: To study the expression of neutral endopeptidase (CD10) and motility-related protein-1 (CD9) in malignant melanoma and their clinical significance.
METHODS: Immunohistochemical study for CD10 and CD9 using Streptavidin-biotin complex technique was carried out in 48 cases of primary cutaneous malignant melanoma (CMM), 23 cases of metastatic melanoma and 23 cases of benign nevus.
RESULTS: The positivity rate of CD10 was highest in metastatic melanoma and lowest in benign nevus (P < 0.01). In contrast, the positivity rate of CD9 in metastatic melanoma was lower than that in CMM (P < 0.05). The expression of CD9 was inversely correlated with that of CD10 in malignant melanoma (CMM: r = -0.40, P = 0.005; metastatic MM: r = -0.44, P = 0.034). The expression of CD10 and CD9 in CMM also correlated with tumor histology, Clark's level of invasion and presence of nodal metastasis. A similar relationship was also observed for CD10 and CD9 expression in stromal fibroblasts of CMM (r = -0.43, P = 0.007).
CONCLUSIONS: CD10 and CD9 expression correlates with the invasiveness and metastatic potential of malignant melanoma; both factors may demonstrate a counteracting effect. These two markers have potential implications in prognostic assessment of CMM. Stromal fibroblasts may also play an important role in the progression of CMM.
METHODS: Immunohistochemical study for CD10 and CD9 using Streptavidin-biotin complex technique was carried out in 48 cases of primary cutaneous malignant melanoma (CMM), 23 cases of metastatic melanoma and 23 cases of benign nevus.
RESULTS: The positivity rate of CD10 was highest in metastatic melanoma and lowest in benign nevus (P < 0.01). In contrast, the positivity rate of CD9 in metastatic melanoma was lower than that in CMM (P < 0.05). The expression of CD9 was inversely correlated with that of CD10 in malignant melanoma (CMM: r = -0.40, P = 0.005; metastatic MM: r = -0.44, P = 0.034). The expression of CD10 and CD9 in CMM also correlated with tumor histology, Clark's level of invasion and presence of nodal metastasis. A similar relationship was also observed for CD10 and CD9 expression in stromal fibroblasts of CMM (r = -0.43, P = 0.007).
CONCLUSIONS: CD10 and CD9 expression correlates with the invasiveness and metastatic potential of malignant melanoma; both factors may demonstrate a counteracting effect. These two markers have potential implications in prognostic assessment of CMM. Stromal fibroblasts may also play an important role in the progression of CMM.