17?-estradiol-mediated elevation of peripheral white blood cell count observed during estramustine phosphate therapy for prostate cancer

How to Cite:Motofumi SuzukiTetsuya FujimuraHiroshi FukuharaYutaka EnomotoHiroaki NishimatsuAkira IshikawaHaruki KumeYukio HommaTadaichi Kitamuraet al.17?-estradiol-mediated elevation of peripheral white blood cell count observed during estramustine phosphate therapy for prostate cancer.Int J Endocrinol Metab.2011;9(4):347-351.https://doi.org/10.5812/Kowsar.1726913X.2246.

Abstract

Background: In 1983, Daponte et al. first reported an increase in the peripheral white blood cell (WBCs) counts of prostate cancer patients treated with estramustine phosphate (EMP) therapy.
Objectives: In order to confirm Daponte’s observation, we reviewed the clinical data of prostate cancer patients treated with EMP. We also examined the association between WBC counts and 17β-estradiol levels throughout the duration of the EMP therapy.
Patients and Methods: The study population comprised of 66 prostate cancer patients who were being treated with EMP. The complete blood count with a differential WBC count and the levels of serum 17β-estradiol and C-reactive protein measured during the therapy were compared with the baseline levels. The correlation between serum 17β-estradiol level and WBC count was calculated using the Pearson correlation test.
Results: We observed that the total WBC and the neutrophil counts were significantly elevated during the therapy. The serum 17β-estradiol level significantly correlated with the WBC count (r2 = 0.031, P = 0.002). The granulocyte colony-stimulating factor levels measured during therapy were approximately 2-fold higher than the upper limit and decreased after cessation of the treatment (P = 0.037).
Conclusions: We successfully confirmed Daponte’s observation. The increase in WBC counts was possibly attributable to elevated serum 17β-estradiol levels.

Please cite this paper as:
Suzuki M, Fujimura T, Fukuhara H, Enomoto Y, Nishimatsu H, Ishikawa A, et al. 17β-Estradiol-Mediated Elevation of Peripheral White Blood Cell Count During Estramustine Phosphate Therapy for Prostate Cancer. Int J Endocrinol Metab. 2011; 9(4):347-51. DOI: 10.5812/Kowsar.1726913X.2246

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Author(s):

Motofumi Suzuki:[PubMed][Scholar]
Tetsuya Fujimura:[PubMed][Scholar]
Hiroshi Fukuhara:[PubMed][Scholar]
Yutaka Enomoto:[PubMed][Scholar]
Hiroaki Nishimatsu:[PubMed][Scholar]
Akira Ishikawa:[PubMed][Scholar]
Haruki Kume:[PubMed][Scholar]
Yukio Homma:[PubMed][Scholar]
Tadaichi Kitamura:[PubMed][Scholar]