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  • Title: Expression of stromal cell-derived factor 1 and CXCR7 in papillary thyroid carcinoma.
    Author: Liu Z, Sun DX, Teng XY, Xu WX, Meng XP, Wang BS.
    Journal: Endocr Pathol; 2012 Dec; 23(4):247-53. PubMed ID: 23070788.
    Abstract:
    Stromal cell-derived factor 1 (SDF-1) is a chemokine that is expressed in some cancer cells and is involved in tumor cell migration and metastasis. CXCR7, a novel receptor for SDF-1, has been identified recently. Researches demonstrated that interaction between SDF-1 and CXCR7 could play an important role in cancer progression. In this study, we aimed to investigate the expressions of SDF-1 and CXCR7 and the relationship between their expressions and clinicopathological characteristics in papillary thyroid carcinoma (PTC). Expressions of SDF-1 and CXCR7 in 33 cases of thyroid benign lesion tissue and 79 cases of PTC tissue and peritumoral non-malignant tissue were detected by immunohistochemical staining. Expressions of SDF-1 and CXCR7 were negative in peritumoral non-malignant tissues. Respectively, positive expression rates of SDF-1 and CXCR7 were 69.6 and 65.8 % in PTC, 12.1 and 30.3 % in thyroid benign tissue. The expression of SDF-1 and CXCR7 were positively correlated with lymph node metastasis. SDF-1 and CXCR7 expressions were related with the lymph nodes metastasis of PTC.
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