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KMID : 0939920210530041204
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2021 Volume.53 No. 4 p.1204 ~ p.1212
Expression of Estrogen and Progesterone Receptors in Papillary Thyroid Carcinoma in Korea
Ahn Hwa-Young

Song Ra-Yeong
Ahn Hye-Shin
Kim Hee-Sung
Abstract
Purpose: The aim of this study was to examine the rate of expression of estrogen receptor ¥á (ER¥á) and ¥â1 (ER¥â1), progesterone receptor (PR), and rate of overexpression of epidermal growth factor receptor (EGFR) in a relatively large cohort of patients with papillary thyroid carcinoma (PTC). We also aimed to examine whether each receptor influenced clinicopathological characteristics and prognosis of PTC.

Materials and Methods: We made a microarray of paraffin-embedded PTC surgical tissues from 436 patients. We compared the results of the immunohistochemical staining for each hormone receptor with clinicopathological characteristics.

Results: The positive expression rate of hormonal receptors was 40.4% for ER¥á, 83.7% for ER¥â1, and 71.3% for PR in patients with PTC. Overexpression of EGFR was shown in 19.3% of patients with PTC. The age was lower (44.6¡¾12.1 years vs. 47.1¡¾12.5 years, p=0.040) and tumor smaller (0.96¡¾0.69 cm vs. 1.13¡¾0.82 cm, p=0.020) in the ER¥á positive group, which also showed higher PR positivity (80.7% vs. 65.0%, p < 0.001) and overexpression of EGFR (27.3% vs. 13.8%, p < 0.001). However, neither the positivity of hormone receptors nor overexpression of EGFR affected the recurrence of PTC.

Conclusion: In conclusion, most (94.6%) patients with PTC were found to exhibit positive expression for ERs or PR. We also found that neither the positive expression of hormone receptors nor overexpression of EGFR were associated with the recurrence of PTC.
KEYWORD
Papillary thyroid carcinoma, Estrogen receptor, Progesterone receptor, Epidermal growth factor receptor
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