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Thymosin beta 10 (TMSB10) has recently been recognized as being an important player in the metastatic cascade including tumor angiogenesis, invasion, and metastasis. However, a role for this protein in papillary thyroid carcinoma (PTC) has not yet been established. Real-time polymerase chain reaction was used to examine the expression of TMSB10 messenger RNA in 36 cases of thyroid tissue samples: normal thyroid, PTC without lymph node metastases (LNM) and PTC with LNM (n = 12 cases in each subgroup). For immunohistochemistry, 130 patients with PTC were selected during the period of 2004-2005, 91 with and 39 without LNM. Statistical analysis was applied to evaluate the correlation between TMSB10 expression and LNM of PTC. By real-time polymerase chain reaction analysis, the expression of TMSB10 messenger RNA in normal thyroid tissue, PTC without LNM, and PTC with LNM tissue were significantly different (P < 0.0001). On immunohistochemistry analysis of 130 patients with PTC, in which 91 cases had cervical LNM and 69 cases had central neck LNM, high expression levels for TMSB10 were more common in patients with cervical LNM compared with patients without (81% versus 33%, P < 0.001). Similarly, high expression levels of TMSB10 were more common in patients with central neck LNM compared with those without (87.0% versus 44.3%, P < 0.001). High expression levels of TMSB10 correlated with LNM in PTC, especially in the central neck region. Patients with PTC with low levels of TMSB10 expression may be unlikely to have central neck LNM and could therefore avoid prophylactic central neck dissection. Copyright © 2014 Elsevier Inc. All rights reserved.

Citation

Xiao-Jun Zhang, Yao-Rong Su, Dan Liu, De-Bin Xu, Mu-Sheng Zeng, Wen-Kuan Chen. Thymosin beta 10 correlates with lymph node metastases of papillary thyroid carcinoma. The Journal of surgical research. 2014 Dec;192(2):487-93

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PMID: 24974154

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