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Correlation between epidermal growth factor receptor mutations and expression of female hormone receptors in East-Asian Lung adenocarcinomas
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Toh, C. K., Ahmad, B., Soong, R., Chuah, K. L., Tan, S. H., Hee, Siew Wan, Leong, S. S., Tan, E. H. and Lim, W. T. (2010) Correlation between epidermal growth factor receptor mutations and expression of female hormone receptors in East-Asian Lung adenocarcinomas. Journal of Thoracic Oncology, 5 (1). pp. 17-22. doi:10.1097/JTO.0b013e3181c0a602
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Official URL: http://dx.doi.org/10.1097/JTO.0b013e3181c0a602
Abstract
INTRODUCTION:
Epidermal growth factor receptor (EGFR) mutations are more common in lung adenocarcinoma and in female patients of East-Asian origin. We aimed to assess the expression of female hormone receptors in East-Asian lung adenocarcinomas, their correlation with EGFR mutations, and prognostic significance.
METHODS:
Estrogen receptor (ER)alpha, ERbeta, progesterone receptor (PR), and Her-2 expression were examined using immunohistochemical methods on 109 lung adenocarcinoma cases. EGFR mutations were analyzed by partially denaturing high performance liquid chromatography. Association of hormone receptor with clinical factors was assessed using the Fisher's exact test. Associations with survival were assessed using the Cox proportional hazard model.
RESULTS:
Using scoring criteria routinely used for breast cancer, there were four (4%) ERalpha, one (1%) ERbeta, six (6%) PR, and one (1%) Her-2 positive cases. Considering any staining as positive, 14 (14%) ERalpha, 10 (9%) ERbeta, 12 (12%) PR, and 26 (24%) Her-2 cases were positive. Thirty-nine patients (39%) had EGFR mutations. ERalpha positivity was significantly associated with ERbeta and PR positivity. There were more EGFR mutations seen in tumors with ERbeta positivity (60%) compared with those with negative expression (37.9%), and there was a trend toward a poorer outcome for patients with tumor that were positive for ERbeta and Her-2.
CONCLUSIONS:
We found that ERalpha, ERbeta, PR, and Her-2 expression in lung adenocarcinoma are present but limited. This suggests that hormonal influence may not be an important factor to account for the high prevalence of lung cancer among the East-Asian wom
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Medicine > Warwick Medical School > Health Sciences > Statistics and Epidemiology Faculty of Medicine > Warwick Medical School |
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| Journal or Publication Title: | Journal of Thoracic Oncology | ||||
| Publisher: | Lippincott Williams & Wilkins | ||||
| ISSN: | 1556-0864 | ||||
| Official Date: | 2010 | ||||
| Dates: |
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| Volume: | 5 | ||||
| Number: | 1 | ||||
| Page Range: | pp. 17-22 | ||||
| DOI: | 10.1097/JTO.0b013e3181c0a602 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Publisher Statement: | Cited By :9 Export Date: 5 March 2015 | ||||
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