타액선 선양낭성암종에서 혈관형성 신호전달 물질의 발현과 미세혈관농도에 관한 면역조직화학적 연구

박영욱; 인연수

SITE LINK

타액선 선양낭성암종에서 혈관형성 신호전달 물질의 발현과 미세혈관농도에 관한 면역조직화학적 연구
Immunohistochemical assays for the expression of angiogenic signaling molecules and microvessel density in adenoid cystic carcinomas of human salivary glands

대한구강악안면외과학회지 2006년 32권 6호 p.530 ~ 543

박영욱, 인연수,

소속 상세정보

박영욱 ( Park Young-Wook ) - 강릉대학교 치과대학 구강악안면외과학교실
인연수 ( In Yeon-Soo ) - 강릉대학교 치과대학 구강악안면외과학교실

KMID : 0355620060320060530

Abstract

Adeonoid cystic carcinoma (ACC) is one of the most common malignant tumors of salivary glands. It is characterized by a relentless regrowth especially around nerve tissues and a high rate of hematogenous distant metastasis. Clinically most deaths from salivary ACC are caused by delayed lung metastases that are resistant to conventional chemotherapy. So, knowledge of cellular and molecular properties that influence the dissemination of metastatic tumor cells, is important for new treatment strategies of metastatic lesions. We determined expressions of angiogenic signaling molecules microvessel density (MVD) using surgical specimens of human salivary ACC. Protein expressions of vascular endothelial growth factor (VEGF), VEGF receptor (VEGFR)-2, activated VEGFR-2, and human CD31 were assessed in 20 cases of salivary ACC by immunohistochemical staining. Most of the tumors, especially ACC with a tubulocribriform pattern, were positive for antibodies of VEGF, VEGFR-2, and activated VEGFR-2. The overall percentages of the 20 specimens expressing VEGF, VEGFR-2, activated VEGFR-2 were 90, 95, and 95%, respectively. Immunoreactivities of the biomarkers in salivary ACC were higher than those in normal salivary gland. Furthermore, immune-related cells as well as tumor cells expressed VEGF/VEGFR-2. Microvessel density of salivary ACC was higher than that of normal salivary gland (P<0.05). Taken together, angiogenic signaling molecules are actively expressed in salivary ACC. And we suggest that these molecules may have critical role in the hematogenous spread of salivay ACC, which has a propensity for delayed lung metastasis. Therefore, these biomarkers can be molecular targets for therapy of metastasis of salivary ACC.