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Ōita-shi, Japan

Kosaka Y.,Kyushu University | Kosaka Y.,Kitasato University | Kataoka A.,Kyushu Cancer Center | Yamaguchi H.,Kyushu Cancer Center | And 8 more authors.
Breast Cancer Research | Year: 2012

Introduction: Identification of useful markers associated with poor prognosis in breast cancer patients is critically needed. We previously showed that expression of vascular endothelial growth factor receptor-1 mRNA in peripheral blood may be useful to predict distant metastasis in gastric cancer patients. However, expression of vascular endothelial growth factor receptor-1 mRNA in peripheral blood of breast cancer patients has not yet been studied.Methods: Real-time reverse transcriptase-PCR was used to analyze vascular endothelial growth factor receptor-1 mRNA expression status with respect to various clinical parameters in 515 patients with breast cancer and 25 controls.Results: Expression of vascular endothelial growth factor receptor-1 mRNA in peripheral blood was higher in breast cancer patients than in controls. Increased vascular endothelial growth factor receptor-1 mRNA expression was associated with large tumor size, lymph node metastasis and clinical stage. Patients with high vascular endothelial growth factor receptor-1 mRNA expression also experienced a poorer survival rate than those with low expression levels, including those patients with triple-negative type and luminal-HER2(-) type disease.Conclusions: Expression of vascular endothelial growth factor receptor-1 mRNA in peripheral blood may be useful for prediction of poor prognosis in breast cancer, especially in patients with triple-negative type and luminal-HER2(-) type disease. © 2012 Kosaka et al.; licensee BioMed Central Ltd. Source

Nishimura R.,Kumamoto City Hospital | Anan K.,Kitakyushu Municipal Medical Center | Yamamoto Y.,Kumamoto University | Higaki K.,Hiroshima City Hospital | And 7 more authors.
Oncology Reports | Year: 2013

The aim of the present study was to assess the efficacy and tolerability of a luteinizing hormone-releasing hormone (LH-RH) analogue plus an aromatase inhibitor following failure to respond to standard LH-RH analogue plus tamoxifen (TAM) in premenopausal patients. Premenopausal women with estrogen receptor (ER)-positive and/or progesterone-receptor positive, advanced or recurrent breast cancer refractory to an LH-RH analogue plus TAM received goserelin (GOS) in conjunction with anastrozole (ANA). The primary endpoint was the objective response rate (ORR). Secondary endpoints included progression-free survival (PFS), overall survival (OS), clinical benefit rate (CBR) and safety. Between September 2008 and November 2010, 37 patients were enrolled. Thirty-five patients (94.6%) had ER-positive tumors, and 36 (97.3%) had human epidermal growth factor receptor (HER) 2-negative tumors. Thirty-six (97.3%) had measurable lesions and 1 (2.7%) had only bone metastasis. The ORR was 18.9% [95% confidence interval (CI), 8.0-35.2%], the CBR was 62.2% (95% CI, 44.8-77.5%) and the median PFS was 7.3 months. Eight patients had adverse drug reactions but none resulted in discontinuation of treatment. GOS plus ANA is a safe effective treatment for premenopausal women with hormone receptor-positive, recurrent or advanced breast cancer. The treatment may become viable treatment in the future, particularly when TAM is ineffective or contraindicated. Further studies and discussion are warranted. Source

Ueo H.,Beppu University | Ueo H.,Kyushu University | Sugimachi K.,Beppu University | Sugimachi K.,Kyushu University | And 13 more authors.
British Journal of Cancer | Year: 2015

Background:Identification of promising biomarkers that predict the prognosis of patients with breast cancer is needed. In this study, we hypothesised that the expression of the epithelial-mesenchymal transition-related biomarker plastin3 (PLS3) in peripheral blood could be a prognostic factor in breast cancer.Methods:We examined PLS3 expression in breast cancer cell lines with epithelial and mesenchymal traits and in circulating tumour cells (CTCs) obtained from the peripheral blood of breast cancer patients. We investigated PLS3 expression in the peripheral blood of 594 patients with breast cancer to evaluate the clinical significance of PLS3 expression.Results:Robust PLS3 expression was observed in different breast cancer cell lines (Hs578t, MCF-7, MDA-MB-468, and MDA-MB-231) as well as in a bone marrow derived cancer cell line (BC-M1). In both the training (n=298) and validation (n=296) sets, PLS3 expression was observed in CTCs of patients with breast cancer. PLS3-positive patients showed significantly poorer overall and disease-free survival than PLS3-negative patients (P=0.0001 and 0.003, respectively). Subset analysis revealed that this prognostic biomarker was relevant in patients with stage I-III cancer, particularly in patients with luminal-type and triple-negative-type tumours.Conclusions:These data demonstrated that PLS3 was expressed in CTCs undergoing the epithelial-mesenchymal transition in patients with breast cancer. Furthermore, PLS3 may be an excellent biomarker for identifying groups at risk of recurrence or with a poor prognosis. © 2015 Cancer Research UK. Source

Yumimoto K.,Kyushu University | Akiyoshi S.,Kyushu University | Ueo H.,Kyushu University | Sagara Y.,Sagara Hospital | And 6 more authors.
Journal of Clinical Investigation | Year: 2015

The gene encoding F-box protein FBXW7 is frequently mutated in many human cancers. Although most previous studies have focused on the tumor-suppressive capacity of FBXW7 in tumor cells themselves, we determined that FBXW7 in the host microenvironment also suppresses cancer metastasis. Deletion of Fbxw7 in murine BM-derived stromal cells induced accumulation of NOTCH and consequent transcriptional activation of Ccl2. FBXW7-deficient mice exhibited increased serum levels of the chemokine CCL2, which resulted in the recruitment of both monocytic myeloid-derived suppressor cells and macrophages, thereby promoting metastatic tumor growth. Administration of a CCL2 receptor antagonist blocked the enhancement of metastasis in FBXW7-deficient mice. Furthermore, in human breast cancer patients, FBXW7 expression in peripheral blood was associated with serum CCL2 concentration and disease prognosis. Together, these results suggest that FBXW7 antagonizes cancer development in not only a cell-autonomous manner, but also a non-cell-autonomous manner, and that modulation of the FBXW7/NOTCH/CCL2 axis may provide a potential approach to suppression of cancer metastasis. Source

Shibuta K.,Ueo Breast Surgical Hospital | Ueo H.,Ueo Breast Surgical Hospital | Furusawa H.,Breastopia Namba Hospital | Komaki K.,Breastopia Namba Hospital | And 4 more authors.
Breast Cancer | Year: 2011

Background: Estrogen receptor (ER), progesterone receptor (PgR), and HER2 expression status in breast cancer function as prognostic and predictive factors that enable individualized treatment. Intrinsic subtype classification has also been performed based on these and other biological and prognostic characteristics. However, clinical analysis of such subtypes in a large number of Japanese breast cancer patients has not yet been reported. Methods: Between January 2003 and December 2007, 4,266 patients with primary breast cancer were registered. Four subtypes based on immunohistochemically evaluated ER/PgR/HER2 status, clinicopathological features, and prognosis were analyzed retrospectively. Results: The following subtype distribution was observed: luminal A type (ER+ and/or PgR+, HER2-), 3,046 cases (71%); luminal B type (ER+ and/or PgR+, HER2+), 321 cases (8%); HER2 type (ER-, PgR-, HER2+), 398 cases (9%); and triple negative (TN) type (ER-, PgR-, HER2-), 501 cases (12%). The HER2+ subtypes (luminal B and HER2 types) had a significantly higher incidence of lymph node metastasis and lymphatic permeation, while the hormone receptor negative subtypes (HER2 and TN types) showed a significantly higher nuclear grade. Overall, patients with HER2-type and TN-type disease had a significantly poorer prognosis than other subtypes. Conclusion: Intrinsic breast cancer subtypes are associated with clinicopathological features and prognosis in Japanese women. Long-term clinical observation of the relationship between each subtype and therapies used should provide useful information for selecting appropriately tailored treatments. © 2010 The Japanese Breast Cancer Society. Source

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