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Kusuhara Y, Daizumoto K, Kawai K, Hirayama K, Kowada M, Shintani T, Fukuhara Y, Dondoo TO, Ozaki K, Tsuda M, Fukawa T, Nakatsuji H, Bando Y, Uehara H, Fukumori T, Takahashi M, Kanayama HO. Low Expression of Toll-like Receptor 4 Is Associated With Poor Prognosis in Bladder Cancer. Anticancer Res 2019; 39:703-711. [PMID: 30711948 DOI: 10.21873/anticanres.13166] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 01/20/2019] [Accepted: 01/22/2019] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM The aim of this study was to elucidate the relationship between the progression of bladder cancer (BCa) and TLR4 expression. MATERIALS AND METHODS The relationship between TLR4 expression and prognosis of BCa patients was analyzed using a publicly available database and immunohistochemical staining of clinical samples. The effect of TLR4 knockdown was also examined on the invasive capabilities of BCa cells. Finally, to investigate the biological function of TLR4, the gene expression profile of TLR4-depleted BCa cells was analyzed by microarray analysis. RESULTS Expression of TLR4 was inversely associated with prognosis of patients with invasive BCa, and depletion of TLR4 significantly enhanced the invasive capability of BCa cells. Gene expression profiling revealed that depletion of TLR4 led to high expression of epithelial differentiation genes. Furthermore, expression of TLR4 was found to be extremely low in areas of squamous differentiation. CONCLUSION Low TLR4 expression was correlated with tumor progression.
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Affiliation(s)
- Yoshito Kusuhara
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kei Daizumoto
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kaichi Kawai
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kento Hirayama
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Minoru Kowada
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Terumichi Shintani
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yayoi Fukuhara
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tsogt-Ochir Dondoo
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Keisuke Ozaki
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Megumi Tsuda
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Tomoya Fukawa
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hiroyoshi Nakatsuji
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Yoshimi Bando
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Hisanori Uehara
- Division of Pathology, Tokushima University Hospital, Tokushima, Japan
| | - Tomoharu Fukumori
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Masayuki Takahashi
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Hiro-Omi Kanayama
- Department of Urology, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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Iida M, Sahashi K, Kondo N, Nakatsuji H, Tohnai G, Tsutsumi Y, Adachi H, Sobue G, Katsuno M. Akt signaling pathway is dysregulated in polyglutamine diseases. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kondo N, Sahashi K, Iida M, Nakatsuji H, Tohnai G, Adachi H, Sobue G, Katsuno M. DNA methylation inhibitor mitigates spinal and bulbar muscular atrophy model mouse. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shintani T, Kusuhara Y, Daizumoto K, Dondoo TO, Yamamoto H, Mori H, Fukawa T, Nakatsuji H, Fukumori T, Takahashi M, Kanayama H. The Involvement of Hepatocyte Growth Factor-MET-Matrix Metalloproteinase 1 Signaling in Bladder Cancer Invasiveness and Proliferation. Effect of the MET Inhibitor, Cabozantinib (XL184), on Bladder Cancer Cells. Urology 2016; 101:169.e7-169.e13. [PMID: 28013036 DOI: 10.1016/j.urology.2016.12.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 11/09/2016] [Accepted: 12/03/2016] [Indexed: 11/15/2022]
Abstract
OBJECTIVE To clarify the invasive mechanisms of muscle-invasive bladder cancer (BCa) would be useful for the determination of appropriate treatment strategies. We previously showed that hepatocyte growth factor (HGF)-MET signaling is correlated with invasiveness of BCa cells. Here, we investigated the effects of the MET inhibitor, cabozantinib (XL184), on BCa cells. METHODS We first conducted Western blot analysis to investigate MET expression in BCa cell lines. Next, we examined the effect of cabozantinib on their proliferation and invasive abilities using MTT and Matrigel invasion assays, respectively. Invasion assays were performed using the xCELLigence system. Additionally, to investigate the biological function of HGF-MET signaling, we analyzed gene expression profiles and performed real-time polymerase chain reaction analyses of 5637 cells that were cultivated with or without HGF stimulation, with or without cabozantinib. RESULTS MET was highly expressed in 4 of 5 BCa cell lines, and 5637 and T24 cells showed especially high protein expression of MET. Cabozantinib suppressed cell proliferation and invasion (cell index; mock, 1.49 vs HGF, 2.26 vs HGF + XL184, 1.47, P < .05). Gene expression profile analysis indicated that matrix metalloproteinase 1 (MMP1) was significantly elevated at the mRNA level with addition of HGF. Moreover, cabozantinib suppressed HGF-induced MMP1 expression in 5637 T24 cells. CONCLUSIONS These data indicate that cabozantinib suppressed MMP1 expression by blocking HGF-MET signaling and that HGF-MET-MMP1 signaling is involved in the invasiveness and proliferation of BCa cells. These results suggest that cabozantinib might prove useful for future treatment of muscle-invasive BCa.
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Affiliation(s)
- Terumichi Shintani
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Yoshito Kusuhara
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Kei Daizumoto
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Tsogt-Ochir Dondoo
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Hiroki Yamamoto
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Hidehisa Mori
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Tomoya Fukawa
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Hiroyoshi Nakatsuji
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan.
| | - Tomoharu Fukumori
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Masayuki Takahashi
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
| | - Hiroomi Kanayama
- Department of Urology, Institute of Biomedical Sciences, Tokushima University, Graduate School, Tokushima, Japan
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Hatsuda K, Takeuchi M, Ogata K, Sasaki Y, Kagawa T, Nakatsuji H, Ibaraki M, Sakaguchi M, Kurata M, Hayashi S. The impact of nutritional state on the duration of sputum positivity of Mycobacterium tuberculosis. Int J Tuberc Lung Dis 2016; 19:1369-75. [PMID: 26467590 DOI: 10.5588/ijtld.14.0963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The outcome of anti-tuberculosis treatment varies according to patient factors. OBJECTIVE To retrospectively identify risks related to the extension of time to negative sputum culture (Tn) and to determine their clinical significance. DESIGN Patients with bacilli susceptible to isoniazid and rifampicin who received initial standard treatment without cessation were recruited into the study. A total of 630 consecutive in-patients were included in the risk development analysis (development cohort) and another 611 consecutive in-patients in the risk validation analysis (validation cohort). RESULTS Univariate analysis showed that Tn was related to sex, body mass index (BMI), white blood cell count (WBC), serum albumin, fasting blood sugar, haemoglobin A1c, C-reactive protein and total cholesterol levels and sputum smear positivity (SSP). Multivariate analysis showed that BMI, WBC and SSP were significant risk factors related to extended Tn. Optimal cut-offs of BMI and WBC for predicting good (Tn < 46 days) and poor responders (Tn ⩾ 46 days) according to each risk were determined by receiver operating characteristics analysis. Risks were verified with the validation cohort. Tn increased according to the number of risks; the median Tn for patients with three risks was 21 days longer than that of patients with none. CONCLUSION The nutritional state of a TB patient can be used to predict Tn.
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Affiliation(s)
- K Hatsuda
- Department of Clinical Laboratory, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - M Takeuchi
- Graduate School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - K Ogata
- Department of Food and Nutrition, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - Y Sasaki
- Department of Internal Medicine, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - T Kagawa
- Department of Internal Medicine, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - H Nakatsuji
- Department of Food and Nutrition, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - M Ibaraki
- Department of Food and Nutrition, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - M Sakaguchi
- Department of Food and Nutrition, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
| | - M Kurata
- Graduate School of Human Environmental Sciences, Mukogawa Women's University, Nishinomiya, Japan
| | - S Hayashi
- Department of Clinical Laboratory, Kinki-Chuo Chest Medical Center, National Hospital Organization, Osaka, Japan
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Komori M, Izaki H, Daizumoto K, Tsuda M, Kusuhara Y, Mori H, Kagawa J, Yamaguchi K, Yamamoto Y, Fukumori T, Takahashi M, Kanayama HO, Sakaki M, Nakatsuji H, Hamao T, Miura H. Complications of Flexible Ureteroscopic Treatment for Renal and Ureteral Calculi during the Learning Curve. Urol Int 2015; 95:26-32. [PMID: 25833730 DOI: 10.1159/000368617] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 09/23/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND The flexible ureterorenoscope (URS) and associated devices have developed rapidly. However, despite its therapeutic benefits, URS may be associated with some complications. To the best of our knowledge, there are no studies discussing the complications of flexURS during the learning curve. METHODS A retrospective review of the records of patients who underwent flexURS from January 2005 to June 2013 was performed. To compare the complications after the introduction of flexURS, patients were divided into four groups based on the surgeon's training experience, that is, based on the number of cases performed by the surgeon. A total of 219 cases underwent flexURS. Groups 1, 2, 3, and 4 included 35, 50, 50, and 84 cases, respectively. The complications were classified using the Clavien system (I-IV). RESULTS The mean operation time and stone-free rate were significantly different (p < 0.001, p = 0.013, respectively). The total complication rates were 13.6, 10, 8.3, and 3.2%, respectively (p = 0.068). The more the surgeon's experience, the less was the complication rate. Despite our best efforts, the incidence of urosepsis was not reduced (p = 0.902). CONCLUSIONS To reduce severe complications, it is necessary to have performed about 100 cases. Increased surgeon experience tended to decrease the risk of severe complications, but the incidence of urosepsis was not reduced.
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Affiliation(s)
- Masatsugu Komori
- Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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Nakatsuji H, Sakaki M, Hamao T. [Primary testicular malignant lymphoma in a hemodialysis patient : a case report]. Hinyokika Kiyo 2015; 61:67-70. [PMID: 25812596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report a case of testicular malignant lymphoma in a hemodialysis patient. A 65-year-old man who had been undergoing hemodialysis for 8 years and 10 months consulted our hospital with right testicular enlargement in August 2012. Under a diagnosis of testicular cancer from manipulation test and ultrasonography, high orchiectomy was performed. Computed tomography showed swelling of the retroperitoneal lymph nodes. Histopathological examination revealed diffuse, non-Hodgkin B-cell lymphoma, CD20+. R-CHOP chemotherapy was initiated and retroperitoneal lymph node swelling completely disappeared after 1 cycle of chemotherapy. After completing 2 cycles of chemotherapy, the patient developed interstitial pneumonia, and thus radiotherapy to the retroperitoneal space including the left testis was performed. As of July 2014, the patient remains alive without recurrence.
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Araki A, Katsuno M, Suzuki K, Banno H, Suga N, Hashizume A, Mano T, Hijikata Y, Nakatsuji H, Watanabe H, Yamamoto M, Makiyama T, Ohno S, Fukuyama M, Morimoto SI, Horie M, Sobue G. Brugada syndrome in spinal and bulbar muscular atrophy. Neurology 2014; 82:1813-21. [DOI: 10.1212/wnl.0000000000000434] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Gadelmoula M, Fukumori T, Nakatsuji H, Elgammal M, Toida K, Kanayama HO. Down-regulated claudin-7 immunoexpression in urothelial carcinoma of the urinary bladder. Arab J Urol 2013; 11:182-6. [PMID: 26558079 PMCID: PMC4442981 DOI: 10.1016/j.aju.2013.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 04/15/2013] [Accepted: 04/17/2013] [Indexed: 11/26/2022] Open
Abstract
Objectives To analyse the gene-expression level of claudin-7 in urothelial carcinoma (UC) of the urinary bladder, and its relationship with clinicopathological variables. Materials and methods This study included 68 specimens of UC of the bladder, comprising 35 with non-muscle-invasive (NMI), stage Ta–T1, and 33 with muscle-invasive (MI) tumours, T2–T4, and 26 of normal urothelium (NU). Total RNA was extracted and 1 μg was reverse transcribed using a cDNA kit. RT-PCR was conducted using SYBR Green I dye to examine the expression levels of the target gene (claudin-7) and the housekeeping gene glyceraldehyde-3-phosphate dehydrogenase. Using confocal-laser scanning light microscopy, immunohistochemistry (IHC) was used to validate the RT-PCR data. The correlation between claudin-7 and the clinicopathological variables was assessed. Results Claudin-7 was down-regulated in UC samples compared to NU samples (P < 0.001). NMI (Ta–T1) tumours had significantly higher claudin-7 expression than MI (⩾pT2) tumours (P = 0.012). There was no significant difference between patients with G1-2 tumours and those with G3 tumours (P = 0.19). There was no significant difference between patients with recurrent NMI UC and those with no recurrence (P = 0.61). IHC showed a lower expression of claudin-7 in the UC samples than NU samples, and in MI UC than in NMI UC. Conclusions These results indicate that a reduced expression of claudin-7 correlates with the invasiveness and progression of UC of the urinary bladder. Further studies are needed to validate claudin-7 as a marker for UC.
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Affiliation(s)
| | - Tomoharu Fukumori
- Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School of Medicine, Tokushima, Japan
| | - Hiroyoshi Nakatsuji
- Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School of Medicine, Tokushima, Japan
| | | | - Kazunori Toida
- Department of Anatomy, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Hiro-Omi Kanayama
- Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School of Medicine, Tokushima, Japan
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Takemura M, Izaki H, Komori M, Senzaki T, Fukawa T, Yamamoto Y, Yamaguchi K, Nakatsuji H, Takahashi M, Fukumori T, Kanayama HO. [Adrenal cortical adenoma with increased uptake of 18F-fluoro-deoxy-glucose on PET/CT suspected as an adrenal metastasis from the cervical cancer : a case report]. Hinyokika Kiyo 2013; 59:91-95. [PMID: 23552750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 61-year-old woman was referred to our department with a diagnosis of left solitary adrenal metastasis from cervical cancer in September 2011. She presented with postmenopausal bleeding in September 2010. The patient received seven courses of paclitaxel (175 mg/m2) and carboplatin (6 mg/GFR+25) for stage IV cervical cancer with paraaortic, bilateral common iliac, mediastinal lymph node metastases and left adrenal metastasis from October 2010 to April 2011. Paraaortic radiation (50.4 Gy) was subsequently administered from May 2011 to July 2011. Abdominal nonenhanced computed tomography (CT) revealed a left 26×21 mm adrenal mass with regular margins (attenuation values 53 HU). On enhanced CT, the mass showed heterogeneous enhancement. F fluoro-2-deoxy D-glucose (FDG) positron emission tomography/CT images showed moderately increased FDG-avid uptake in the left adrenal tumor which was high enough to be suspicious of malignant tumor (standardized uptake value max : SUVmax 6.8). There were no other foci of pathologic uptake of FDG in the whole body. The plasma endocrinological examinations was all normal. Left laparoscopic adrenalectomy was performed. The final pathologic evaluation revealed adrenal cortical adenoma.
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Affiliation(s)
- Masahiko Takemura
- The Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School, Japan
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Kishimoto T, Fukawa T, Yamaguchi K, Yamamoto Y, Nakatsuji H, Izaki H, Takahashi M, Fukumori T, Kanayama HO. Mineralocorticoid receptor expression in human penile corpus cavernosum. J Med Invest 2013; 60:21-6. [DOI: 10.2152/jmi.60.21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Tomoteru Kishimoto
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Tomoya Fukawa
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Kunihisa Yamaguchi
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Yasuyo Yamamoto
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Hiroyoshi Nakatsuji
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Hirofumi Izaki
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Masayuki Takahashi
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Tomoharu Fukumori
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
| | - Hiro-omi Kanayama
- Department of Urology, Institute of Health Biosciences, the University of Tokushima Graduate School
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Takahashi H, Nakatsuji H, Takahashi M, Avirmed S, Fukawa T, Takemura M, Fukumori T, Kanayama H. Up-regulation of plakophilin-2 and Down-regulation of plakophilin-3 are correlated with invasiveness in bladder cancer. Urology 2011; 79:240.e1-8. [PMID: 22119253 DOI: 10.1016/j.urology.2011.08.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 08/04/2011] [Accepted: 08/23/2011] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To examine plakophilin proteins (Pkp) and 3 expression levels in bladder cancer, in particular their levels during cellular growth and invasion. Pkp is associated with the binding of cadherin to intermediate filaments of the cytoskeleton. METHODS The relative mRNA and protein expression levels of Pkp2 and 3 in bladder cancer cell lines were determined using quantitative real-time polymerase chain reaction and Western blot analyses. The cellular localization of Pkp2 and 3 proteins in bladder cancer cells was also assayed using immunohistochemistry. The proliferation and invasive activities of bladder cancer cells were evaluated using cell growth and in vitro cell invasion assays, and were compared with those of bladder cancer cells treated with Pkp2 and 3 small interfering RNAs. RESULTS Pkp2 mRNA and protein levels were elevated, and those of Pkp3 were reduced, in bladder cancer cells that are known to exhibit increased proliferation and invasive activity. Pkp2/3 protein expression was predominantly observed in the cytoplasm of invasive bladder cancer cells and tissues. Pkp2 knockdown inhibited, and Pkp3 knockdown enhanced, invasion of bladder cancer cells, but these knockdowns did not alter cell proliferation. CONCLUSION We conclude that high Pkp2, and low Pkp3, expression is associated with bladder cancer cell invasion and that neither Pkp2 nor Pkp3 is associated with cell proliferation. We further hypothesize that accumulation of Pkp2 and 3 in the cell cytoplasm, rather than their recruitment to the cell membrane, is related to an increased ability of the tumor to invade and metastasize.
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Affiliation(s)
- Hisaya Takahashi
- Department of Urology, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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Izaki H, Takahashi M, Takemura M, Nakatsuji H, Yamamoto Y, Fukumori T, Kanayama H. UP-01.003 The Indication and Limit of Laparoscopic Adrenalectomy for Pheochromocytoma. Urology 2011. [DOI: 10.1016/j.urology.2011.07.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Yamamoto Y, Takahashi M, Tsuda M, Takemura M, Nakatsuji H, Izaki H, Fukumori T, Kanayama H. UP-03.191 Clinical Experience of Interstitial Cystitis Treated with Hydrodistension. Urology 2011. [DOI: 10.1016/j.urology.2011.07.1279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gadelmoula M, Fukumori T, Nakatsuji H, Osman M, Toida K, Kanayama H. UP-01.143 Loss of the Tight Junction Protein Claudin-7 Correlates with Carcinogenesis and Grading of the Clear Cell Renal Cell Carcinoma. Urology 2011. [DOI: 10.1016/j.urology.2011.07.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Takemura M, Izaki H, Takahashi M, Yamamoto Y, Nakatsuji H, Fukumori T, Kanayama H. MP-02.05 Laparoscopic Adrenalectomy for Adrenal Metastases: Points of Controversy. Urology 2011. [DOI: 10.1016/j.urology.2011.07.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Takahashi M, Kawabata R, Kawano A, Murakami Y, Sutou Y, Inai T, Akazawa S, Hamao T, Hayashi H, Fukawa T, Takemura M, Yamamoto Y, Yamaguchi K, Nakatsuji H, Kishimoto T, Izaki H, Fukumori T, Kanayama H. A multicenter, randomized phase II study of the second-line maximum androgen blockade with an alternative antiandrogen combined with tegafur-uracil (UFT) for prostate cancer with relapse after initial hormonal therapy. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Avirmed S, Uehara H, Nakatsuji H, Fukawa T, Takemura M, Yamamoto Y, Yamaguchi K, Kishimoto T, Izaki H, Takahashi M, Fukumori T, Kanayama HO. 1625 ENHANCEMENT OF OSTEOCLASTOGENIC ACTIVITY IN OSTEOLYTIC PROSTATE CANCER CELLS BY PHYSICAL CONTACT WITH OSTEOBLASTS. J Urol 2011. [DOI: 10.1016/j.juro.2011.02.1733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sakaki M, Fukumori T, Fukawa T, Elsamman E, Shiirevnyamba A, Nakatsuji H, Kanayama HO. Clinical significance of Galectin-3 in clear cell renal cell carcinoma. J Med Invest 2010; 57:152-7. [PMID: 20299755 DOI: 10.2152/jmi.57.152] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Overexpression of galectin-3 in a variety of cancer cell lines has been shown to correlate with tumor progression and metastasis. In this study, we investigated the expression of galectin-3 in clear cell renal cell carcinoma (CC-RCC) and evaluated the relationship between galectin-3 expression levels and the clinicopathological features of CC-RCC. Expression of galectin-3 in the kidney cancer cell lines Caki-1, Caki-2, A704, ACHN and KPK-1 were evaluated using western blot analysis, while galectin-3 expression in CC-RCC tissues and normal parenchyma were measured by real-time PCR and immunohistochemistry. We found that galectin-3 was overexpressed in the Caki-1, Caki-2, A704, ACHN and KPK-1 cell lines and that the expression level in CC-RCC was also significantly higher than that in renal parenchyma obtained from the same patient samples (p=0.039). Galectin-3 expression in CC-RCC with distant metastasis was also significantly higher than that in CC-RCC without distant metastasis (p=0.045). In conclusion, we revealed that galectin-3 is highly expressed in CC-RCC, especially in CC-RCC with distant metastasis, suggesting that galectin-3 may serve as a novel target molecule for predicting CC-RCC metastasis.
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Affiliation(s)
- Manabu Sakaki
- Department of Urology, Institute of Health Biosciences, University of Tokushima Graduated School, Tokushima, Japan
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20
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Izaki H, Takahashi M, Shiirevnyamba A, Taue R, Furumoto H, Bando Y, Murakami Y, Fukawa T, Koizumi T, Yamamoto Y, Yamaguchi K, Nakatsuji H, Kishimoto T, Fukumori T, Kanayama HO. Long-term recurrence-free survivor after laparoscopic removal of solitary adrenal metastasis from endometrial adenocarcinoma. J Med Invest 2010; 57:174-7. [PMID: 20299759 DOI: 10.2152/jmi.57.174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Solitary adrenal metastasis from endometrial adenocarcinoma is extremely rare. We report herein the case of a laparoscopically resected solitary adrenal metastasis originating from endometrial adenocarcinoma. The patient was a 55-year-old woman who had undergone total abdominal hysterectomy for stage IIIc endometrial carcinoma, followed by 7 courses of adjuvant chemotherapy comprising carboplatin and paclitaxel. However, the patient developed an isolated right adrenal metastasis 15 months postoperatively. The solitary adrenal metastasis (diameter, 5.7 cm) was removed laparoscopically. The patient has now been in good health without recurrence for 5 years and 7 months after laparoscopic surgery. To the best of our knowledge, this is the first case of solitary adrenal metastasis originating from endometrial adenocarcinoma that is controlled for the long term by successful laparoscopic resection.
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Affiliation(s)
- Hirofumi Izaki
- Department of Urology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan
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21
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Koizumi T, Nakatsuji H, Fukawa T, Avirmed S, Fukumori T, Takahashi M, Kanayama H. The Role of Actinin-4 in Bladder Cancer Invasion. Urology 2010; 75:357-64. [DOI: 10.1016/j.urology.2009.09.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2008] [Revised: 09/01/2009] [Accepted: 09/12/2009] [Indexed: 11/25/2022]
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22
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Izaki H, Takahashi M, Yuasa A, Fukawa T, Koizumi T, Yamaguchi K, Yamamoto Y, Taue R, Nakatsuji H, Kishimoto T, Fukumori T, Kanayama HO, Bando Y, Kusuhara Y. [A case of retroperitoneal serous cyst resected by laparoscopic surgery]. Hinyokika Kiyo 2009; 55:695-698. [PMID: 19946187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A 40-year-old woman was referred to our hospital because of pain extending from the left lateral abdomen to the left inferior limb. The abdominal computed tomography (CT) revealed an 8x7x12 cm retroperitoneal serous cystic mass. The serum carcinoembryogenic antigen (CEA) level was slightly elevated to 2.7 ng/ml. Therefore, we suspected it to be malignant, and we performed laparoscopic resection carefully. The retroperitoneal cyst was not adherent to the surrounding tissues and was easily dissected and removed under laparoscopy. Carbohydrale antigen (CA)19-9, CA125 and CEA levels in the fluid were elevated, but a cytology of the fluid was negative and no malignant sign was seen in the cyst wall. To our knowledge, this is the second reported case of retroperitoneal serous cyst resected by laparoscopic surgery in the Japanese literature.
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Affiliation(s)
- Hirofumi Izaki
- The Department of Urology, The University of Tokushima Graduate School, Japan
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23
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Ehara M, Yasuda S, Nakatsuji H. Fine Theoretical Spectroscopy Using SAC-CI General-R Method: Outer- and Inner-Valence Ionization Spectra of N2O and HN3. ACTA ACUST UNITED AC 2009. [DOI: 10.1524/zpch.217.2.161.22615] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Abstract
Fine theoretical spectroscopy for the outer- and inner-valence ionization spectra has been presented by using the SAC-CI (symmetry adapted cluster-configuration interaction) general-R method applied to N2O and HN3. The SAC-CI general-R method accurately simulated the experimental spectra and the detailed assignments of the satellite peaks were proposed. The continuous peaks I ∼ V of N2O observed by the dipole (e,2e) spectroscopy were finely reproduced. In particular, the low-lying satellites were calculated in good agreement with the experiment; two 2Π shake-up states at the foot of the C state, 2Σ and 2Π states for the peak I. For HN3, new interpretation was proposed for the outer-valence region, namely, peaks 3 ∼ 5 are composed of the mixture of the single-electron main peaks and the two-electron shake-up peaks. Inner-valence ionization spectrum of HN3 was theoretically predicted for which no experimental spectrum has been reported.
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24
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Nakanishi R, Oka N, Nakatsuji H, Koizumi T, Sakaki M, Takahashi M, Fukumori T, Kanayama HO. Effect of vascular endothelial growth factor and its receptor inhibitor on proliferation and invasion in bladder cancer. Urol Int 2009; 83:98-106. [PMID: 19641368 DOI: 10.1159/000224877] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Accepted: 06/20/2008] [Indexed: 11/19/2022]
Abstract
BACKGROUND Vascular endothelial growth factor (VEGF) and its receptors are major regulators of cancer cell growth and metastases. We investigated the association between serum VEGF levels and clinicopathological parameters in bladder cancer patients. We also evaluated the effects of VEGF and its receptor inhibitor on proliferation and invasion in bladder cancer cell lines. METHODS Serum VEGF levels were measured in 52 patients with bladder cancer and 45 healthy controls. In highly invasive bladder cancer cell lines (T-24, UMUC-3 and J82), we assessed the effect of VEGF on proliferation and invasion of bladder cancer cell lines. The effect of VEGF receptor (VEGFR) tyrosine kinase inhibitor against bladder cancer cell lines was also measured. RESULTS Serum levels of VEGF were significantly higher in patients with muscular invasive bladder cancer than in patients with superficial bladder cancer (p < 0.005). VEGF increased tumor proliferation in a dose-dependent manner in all cell lines. VEGFR-2 tyrosine kinase inhibitor inhibited proliferation in all three cell lines, and inhibited invasion in T24. CONCLUSIONS In bladder cancer, the serum VEGF level correlates significantly with muscular invasiveness. This study suggests that VEGF promotes tumor proliferation and invasion through VEGFR-2. VEGF-targeted therapy may be effective in treating invasive bladder cancers.
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Affiliation(s)
- Ryoichi Nakanishi
- Department of Urology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.
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25
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Taue R, Takahashi M, Fukawa T, Koizumi T, Nakanishi R, Yamaguchi K, Yamamoto Y, Nakatsuji H, Kishimoto T, Izaki H, Oka N, Fukumori T, Kanayama HO. [Clinical study of prostate specific antigen failure after radical prostatectomy for prostate cancer: a single center experience]. Hinyokika Kiyo 2009; 55:1-4. [PMID: 19227203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Between January 1996 and December 2007, 111 patients with prostate cancer underwent radical prostatectomy, including 34 who received preoperative hormonal therapy. In this study, we reviewed 77 patients who did not undergo neoadjuvant hormonal therapy. The mean age was 65.5 years old and followup time was 40.7 months. The clinical stage was T1c in 60 patients, T2 in 16, and T3 in 1. Prostate specific antigen (PSA) at diagnosis ranged from 3.44 to 46.08 ng/ml (mean 10.18). At our institution, PSA failure after surgery was defined as PSA elevation above 0.2 ng/ml. The pathological stage was pT2 in 59 patients, pT3a in 11, pT3b in 7 and pN + (obturator lymph node) in none. The surgical margin was positive in 29.3% of the pT2 patients and 68.8% of the pT3 patients. Sixteen patients (20.8%) had PSA failure. PSA values at diagnosis and pathological T stage were significantly relevant to PSA failure. Patients with PSA failure underwent radiation therapy or hormonal therapy as a salvage adjuvant therapy. The PSA level was controlled well in majority of the patients. Only one patient died of cancer. In conclusion, 33 out of 111 patients who underwent radical prostatectomy had PSA failure. Sixteen of the 77 patients who were not given neoadjuvant therapy had PSA failure. The significant factors related to PSA failure were PSA values at diagnosis and pathological T stage.
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Affiliation(s)
- Ryuichi Taue
- Department of Urology, The University of Tokushima Graduate School Institute of Health Bioscience
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26
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Taue R, Izaki H, Fukawa T, Koizumi T, Nakanishi R, Yamaguchi K, Yamamoto Y, Nakatsuji H, Kishimoto T, Oka N, Fukumori T, Takahashi M, Kanayama HO. [Laparoscopic ureterolithotomy for ureteral calculi: three case reports]. Hinyokika Kiyo 2008; 54:661-664. [PMID: 19048931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
With the development of extracorporeal shock wave lithotripsy (ESWL), improved endourologic instrumentation, and medical dissolution therapy, the need for open ureterolithotomy has become less common. Open operation is occasionally necessary when less invasive techniques fail. As in many of the surgical specialties, laparoscopy has become more common in urologic surgery. We recently experienced three cases of ureteral stones, which were treated by laparoscopic ureterolithotomy. The stones were all large and impacted stones. The patients were a 73-year-old man and two 34-year-old men. All procedures were performed by a retroperitoneal approach. We used Roticulator endo mini-shears resourcefully, when we incised the ureteral wall. After surgery, all three patients were stone-free, and hydronephrosis was improved.
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Affiliation(s)
- Ryuichi Taue
- The Department of Urology, The University of Tokushima Graduate School Institute of Health Bioscience
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27
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Takahashi M, Kurokawa Y, Nakanishi R, Nakatsuji H, Izaki H, Oka N, Fukumori T, Kanayama HO. Laparoscopic findings of transverse testicular ectopia. Urology 2008; 71:547.e3-5. [PMID: 18342213 DOI: 10.1016/j.urology.2007.11.045] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2007] [Revised: 10/12/2007] [Accepted: 11/09/2007] [Indexed: 11/15/2022]
Abstract
Transverse testicular ectopia (TTE) is an extremely rare congenital anomaly in which both testes descend through the same inguinal canal. We report an 8-month-old male with TTE and hypospadias. To help manage the patient, we conducted laparoscopy to elucidate the anatomy of the spermatic cord of the ectopic testis. On laparoscopy, we clearly identified the spermatic cord of the right ectopic testis. In addition, the laparoscopic guide was helpful when doing the trans-septal orchidopexy, in that the ectopic testis could be precisely discriminated without confusion as to the laterality of the testes. Long-term follow-up at 32 months confirmed that both testes were properly positioned in the scrotum and had a good consistency.
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Affiliation(s)
- Masayuki Takahashi
- Department of Urology, Institute of Health Biosciences, University of Tokushima Graduate School, Tokushima, Japan.
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28
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Tanimoto S, Fukumori T, El-Moula G, Shiirevnyamba A, Kinouchi S, Koizumi T, Nakanishi R, Yamamoto Y, Taue R, Yamaguchi K, Nakatsuji H, Kishimoto T, Izaki H, Oka N, Takahashi M, Kanayama HO. Prognostic significance of serum hepatocyte growth factor in clear cell renal cell carcinoma: comparison with serum vascular endothelial growth factor. J Med Invest 2008; 55:106-11. [PMID: 18319552 DOI: 10.2152/jmi.55.106] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
No adequate serum predictive biomarker currently exists, which can identify the activity of renal cell carcinoma (RCC). We investigate the association of serum hepatocyte growth factor (HGF) and serum vascular endothelial growth factor (VEGF) levels with clinicopathologic parameters in untreated clear cell RCC patients. We measured serum levels of HGF and VEGF in 45 patients with untreated clear cell RCC and 45 healthy controls using an enzyme-linked immunosorbent assay (ELISA). Patients with clear cell RCC had significantly higher serum HGF and VEGF concentrations than healthy subjects: median, 1070.7 versus 728.3 pg/ml (p<0.0001) for HGF; and median, 397.5 versus 245.6 pg/ml (p=0.0003) for VEGF. We found a significant correlation between serum level of HGF and clinical stage and tumor grade. Survival of patients with high serum HGF (>1150 pg/ml) was significantly reduced compared to patients with low serum HGF concentrations (p=0.0044). In patients with nuclear grade 2 or high stage RCC, the higher serum HGF group exhibited significantly lower cause-specific survival (p=0.0087 and p< 0.05, respectively). No significant difference was observed between serum VEGF levels and cause-specific survival rate. Serum HGF might be a diagnostic and prognostic indicator in clear cell RCC, especially for patients with grade 2 or high stage RCC.
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Affiliation(s)
- Shuji Tanimoto
- Department of Urology, Takamatsu Red Cross Hospital, Tokushima, Japan
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29
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Katto K, Takahashi M, Taue R, Nakatsuji H, Kishimoto T, Izaki H, Oka N, Fukumori T, Nishitani MA, Kanayama HO. Strategy for Repeat Prostate Biopsy: Predictors of Positive Biopsy and Additional Biopsy Location. Urol Int 2008; 81:173-8. [DOI: 10.1159/000144056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2007] [Accepted: 06/28/2007] [Indexed: 11/19/2022]
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30
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Yamamura R, Nishimura N, Nakatsuji H, Arase S, Sasaki T. The interaction of JRAB/MICAL-L2 with Rab8 and Rab13 coordinates the assembly of tight junctions and adherens junctions. Mol Biol Cell 2007; 19:971-83. [PMID: 18094055 DOI: 10.1091/mbc.e07-06-0551] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The assembly of tight junctions (TJs) and adherens junctions (AJs) is regulated by the transport of integral TJ and AJ proteins to and/or from the plasma membrane (PM) and it is tightly coordinated in epithelial cells. We previously reported that Rab13 and a junctional Rab13-binding protein (JRAB)/molecule interacting with CasL-like 2 (MICAL-L2) mediated the endocytic recycling of an integral TJ protein occludin and the formation of functional TJs. Here, we investigated the role of Rab13 and JRAB/MICAL-L2 in the transport of other integral TJ and AJ proteins claudin-1 and E-cadherin to the PM by using a Ca(2+)-switch model. Although knockdown of Rab13 specifically suppressed claudin-1 and occludin but not E-cadherin transport, knockdown of JRAB/MICAL-L2 and expression of its Rab13-binding domain (JRAB/MICAL-L2-C) inhibited claudin-1, occludin, and E-cadherin transport. We then identified Rab8 as another JRAB/MICAL-L2-C-binding protein. Knockdown of Rab8 inhibited the Rab13-independent transport of E-cadherin to the PM. Rab8 and Rab13 competed with each other for the binding to JRAB/MICAL-L2 and functionally associated with JRAB/MICAL-L2 at the perinuclear recycling/storage compartments and PM, respectively. These results suggest that the interaction of JRAB/MICAL-L2 with Rab8 and Rab13 coordinates the assembly of AJs and TJs.
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Affiliation(s)
- Rie Yamamura
- Department of Biochemistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan
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31
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Nakatsuji H, Nakashima H, Kurokawa Y, Ishikawa A. Solving the Schrödinger equation of atoms and molecules without analytical integration based on the free iterative-complement-interaction wave function. Phys Rev Lett 2007; 99:240402. [PMID: 18233425 DOI: 10.1103/physrevlett.99.240402] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2007] [Indexed: 05/25/2023]
Abstract
A local Schrödinger equation (LSE) method is proposed for solving the Schrödinger equation (SE) of general atoms and molecules without doing analytic integrations over the complement functions of the free ICI (iterative-complement-interaction) wave functions. Since the free ICI wave function is potentially exact, we can assume a flatness of its local energy. The variational principle is not applicable because the analytic integrations over the free ICI complement functions are very difficult for general atoms and molecules. The LSE method is applied to several 2 to 5 electron atoms and molecules, giving an accuracy of 10(-5) Hartree in total energy. The potential energy curves of H2 and LiH molecules are calculated precisely with the free ICI LSE method. The results show the high potentiality of the free ICI LSE method for developing accurate predictive quantum chemistry with the solutions of the SE.
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Affiliation(s)
- H Nakatsuji
- Quantum Chemistry Research Institute, Kyodai Katsura Venture Plaza 106, Goryo Oohara 1-36, Nishikyo-ku,Kyoto 615-8245, Japan.
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32
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Abstract
Epithelial cell scattering recapitulates the first steps of carcinoma invasion/metastasis. While the balance between cell-cell adhesive activity and cell motility ultimately determines this process, its molecular mechanisms remain unclear. Adherence junctions and tight junctions (TJs) are primarily responsible for cell-cell adhesive activity and subjected to dynamic remodeling. We previously showed that Rab13 and its effector protein JRAB/MICAL-L2 mediate the endocytic recycling of the integral TJ protein occludin and the assembly of functional TJs. In this study, we examined the role of Rab13 and JRAB/MICAL-L2 in the scattering of Madin-Darby canine kidney (MDCK) cells in response to 12-O-tetradecanoylphorbol-13-acetate (TPA). Knockdown of Rab13 in canine MDCK cells suppressed the TPA-induced scattering, and this phenotype was restored by re-expression of human Rab13. During TPA-induced MDCK cell scattering, Rab13 was transiently activated and returned to its basal level, and both Rab13 and JRAB/MICAL-L2 were colocalized with F-actin at cell-cell contact sites and then accumulated at emerging lamellipodial structures. TPA-induced MDCK cell scattering was also inhibited by knockdown of canine JRAB/MICAL-L2 and rescued by re-expression of mouse JRAB/MICAL-L2. These results indicate that Rab13 and JRAB/MICAL-L2 are involved in epithelial cell scattering.
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Affiliation(s)
- I Kanda
- Department of Biochemistry, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
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33
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Ehara M, Tamaki R, Nakatsuji H, Lucchese R, Söderström J, Tanaka T, Hoshino M, Kitajima M, Tanaka H, De Fanis A, Ueda K. Vibrationally resolved nitrogen K-shell photoelectron spectra of the dinitrogen oxide molecule: Experiment and theory. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2007.02.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Tanaka T, Ueda K, Feifel R, Karlsson L, Tanaka H, Hoshino M, Kitajima M, Ehara M, Fukuda R, Tamaki R, Nakatsuji H. Symmetry and vibrationally resolved absorption spectra near the O K edge of N2O: Experiment and theory. Chem Phys Lett 2007. [DOI: 10.1016/j.cplett.2006.12.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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35
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Izaki H, Fukumori T, Takahashi M, Nakatsuji H, Oka N, Taue R, Nishitani MA, Kanayama HO. Clinical research of renal vein control using Hem-o-lok clips in laparoscopic nephrectomy. Int J Urol 2006; 13:1147-9. [PMID: 16903952 DOI: 10.1111/j.1442-2042.2006.01493.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Control of the renal vein represents a crucial step in laparoscopic nephrectomy. Although endovascular gastrointestinal anastomosis (GIA) staplers have generally been used for renal vein control because of the large diameter of the vessel, Hem-o-lok clips have recently been used for renal artery control. GIA staplers are expensive and can malfunction on rare occasions, resulting in severe complications. We evaluated renal vein control using Hem-o-lok clips (adaptive vascular width 7-16 mm) in laparoscopic nephrectomy. Since April 2004, we have ligated renal arteries using Hem-o-lok clips. From June 2004, this method was applied for renal vein control in 40 laparoscopic nephrectomies. After renal pedicle dissection, renal pedicle ligation was accomplished using extra large (XL) Hem-o-lok clips on both the renal arteries and veins by placing two clips on the patient side and one clip on the specimen side. Ligation times for obtaining renal vein control were compared between XL Hem-o-lok clips and GIA staplers in 40 cases before June 2004. Vascular control using XL Hem-o-lok clips was successful in all 40 cases, without any slipping of clips or uncontrolled bleeding. After renal pedicle dissection, ligation time for achieving renal vein control was 167.0 +/- 48 s (range: 122-295 s) using XL Hem-o-lok clips (mean, three clips) and 68 +/- 24.0 s (range: 54-150 s) using a GIA stapler. XL Hem-o-lok clips allow safe and reliable control of renal veins in laparoscopic nephrectomy. Ligation time is only 100 s longer than using a GIA stapler. In addition, costs are reduced by more than 90% compared to GIA stapling.
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Affiliation(s)
- Hirofumi Izaki
- Department of Urology, The University of Tokushima Graduate School Institute of Health Bioscience, Tokushima, Japan
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36
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Oka N, Tanimoto S, Taue R, Nakatsuji H, Kishimoto T, Izaki H, Fukumori T, Takahashi M, Nishitani M, Kanayama HO. Role of phosphatidylinositol-3 kinase/Akt pathway in bladder cancer cell apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand. Cancer Sci 2006; 97:1093-8. [PMID: 16984382 DOI: 10.1111/j.1349-7006.2006.00294.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
TRAIL/Apo2L is a pro-apoptotic cytokine that is capable of inducing apoptosis in a wide variety of cancer cells but not in normal cells. Among various molecular strategies by which cancer cells evade apoptosis, PI3K/Akt signaling represents a dominant survival pathway. In this report, we investigated the role of PI3K/Akt pathway in TRAIL-induced apoptotic death in human bladder cancer cells. We observed that RT4 cells had very low level of constitutively active Akt and were sensitive to TRAIL, whereas UM-UC-3 and T24 cells had higher levels of constitutively active Akt and were resistant to TRAIL. Downregulation of constitutively active Akt by PI3K inhibitors, wortmannin and LY294002, reversed cellular resistance to TRAIL. However, transfecting constitutively active Akt into RT4 cells increased Akt activity and inhibited TRAIL-induced apoptosis. These results suggest that elevated Akt activity protects UM-UC-3 and T24 cells from TRAIL-induced apoptosis, and the PI3K/Akt signaling might inhibit apoptotic signals. Thus, the modulation of Akt activity by combining pharmacological drugs or genetic alterations of the Akt expression could induce cellular responsiveness to TRAIL and PI3K/Akt signaling pathway could serve as a novel target for therapeutic intervention in bladder cancer.
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Affiliation(s)
- Natsuo Oka
- Department of Urology, The University of Tokushima Graduate School Institute of Health Biosciences, Tokushima, Japan.
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37
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Ehara M, Kuramoto K, Nakatsuji H, Hoshino M, Tanaka T, Kitajima M, Tanaka H, De Fanis A, Tamenori Y, Ueda K. C1s and O1s photoelectron satellite spectra of CO with symmetry-dependent vibrational excitations. J Chem Phys 2006; 125:114304. [PMID: 16999471 DOI: 10.1063/1.2346683] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The photoelectron shake-up satellite spectra that accompany the C1s and O1s main lines of carbon monoxide have been studied by a combination of high-resolution x-ray photoelectron spectroscopy and accurate ab initio calculations. The symmetry-adapted cluster-expansion configuration-interaction general-R method satisfactorily reproduces the satellite spectra over a wide energy region, and the quantitative assignments are proposed for the 16 and 12 satellite bands for C1s and O1s spectra, respectively. Satellite peaks above the pi(-1)pi(*) transitions are mainly assigned to the Rydberg excitations accompanying the inner-shell ionization. Many shake-up states, which interact strongly with three-electron processes such as pi(-2)pi(*2) and n(-2)pi(*2), are calculated in the low-energy region, while the continuous Rydberg excitations are obtained with small intensities in the higher-energy region. The vibrational structures of low-lying shake-up states have been examined for both C1s and O1s ionizations. The vibrational structures appear in the low-lying C1s satellite states, and the symmetry-dependent angular distributions for the satellite emission have enabled the Sigma and Pi symmetries to be resolved. On the other hand, the potential curves of the low-lying O1s shake-up states are predicted to be weakly bound or repulsive.
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Affiliation(s)
- M Ehara
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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Elsamman E, Fukumori T, Kasai T, Nakatsuji H, Nishitani MA, Toida K, Ali N, Kanayama HO. Prostate stem cell antigen predicts tumour recurrence in superficial transitional cell carcinoma of the urinary bladder. BJU Int 2006; 97:1202-7. [PMID: 16686711 DOI: 10.1111/j.1464-410x.2006.06153.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate the relationship between prostate stem cell antigen (PSCA) expression level in transitional cell carcinoma (TCC) of the urinary bladder and various clinicopathological features, including stage and grade; and to determine whether PSCA mRNA expression predicts disease recurrence in superficial (not muscle-invasive) TCC of the bladder. PATIENTS AND METHODS Real-time reverse transcriptase-polymerase chain reaction (RT-PCR) was performed on 97 TCC tissue samples and in 36 samples of normal bladder urothelium; the findings were analysed in relation to clinicopathological factors. Immunohistochemical expression was examined using light and confocal immunofluorescence microscopy to validate the RT-PCR data. RESULTS Twenty-seven patients developed disease recurrence, while the remaining 22 had no evidence of recurrence of superficial TCC of the bladder. There was significantly higher PSCA mRNA expression in TCC than in normal urothelium samples (P = 0.008). Superficial (TaT1) tumours had significantly higher PSCA expression than muscle-invasive (> or = pT2) tumours (P < 0.001). There was no significant difference between patients with G1-2 tumours and those with G3 tumours (P = 0.109). Immunohistochemical analysis showed markedly greater PSCA expression in superficial than invasive TCC. Notably, from a multivariate analysis, the expression level of PSCA was an independent predictor of disease recurrence in superficial TCC (P = 0.012). CONCLUSIONS These findings suggest that the PSCA expression level measured by real-time RT-PCR could be a valuable prognostic marker for tumour recurrence in superficial TCC of the bladder.
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Affiliation(s)
- Essam Elsamman
- Department of Urology, The University of Tokushima Graudate School Institute of Health Biosciences, Tokushima, Japan
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Sankari R, Ehara M, Nakatsuji H, De Fanis A, Aksela H, Sorensen S, Piancastelli M, Kukk E, Ueda K. High resolution O 1s photoelectron shake-up satellite spectrum of H2O. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ehara M, Nakatsuji H, Matsumoto M, Hatamoto T, Liu XJ, Lischke T, Prümper G, Tanaka T, Makochekanwa C, Hoshino M, Tanaka H, Harries JR, Tamenori Y, Ueda K. Symmetry-dependent vibrational excitation in N 1s photoionization of N2: Experiment and theory. J Chem Phys 2006; 124:124311. [PMID: 16599678 DOI: 10.1063/1.2181144] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have measured the vibrational structures of the N 1s photoelectron mainline and satellites of the gaseous N2 molecule with the resolution better than 75 meV. The gerade and ungerade symmetries of the core-ionized (mainline) states are resolved energetically, and symmetry-dependent angular distributions for the satellite emission allow us to resolve the Sigma and Pi symmetries of the shake-up (satellite) states. Symmetry-adapted cluster-expansion configuration-interaction calculations of the potential energy curves for the mainline and satellite states along with a Franck-Condon analysis well reproduce the observed vibrational excitation of the bands, illustrating that the theoretical calculations well predict the symmetry-dependent geometry relaxation effects. The energies of both mainline states and satellite states, as well as the splitting between the mainline gerade and ungerade states, are also well reproduced by the calculation: the splitting between the satellite gerade and ungerade states is calculated to be smaller than the experimental detection limit.
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Affiliation(s)
- M Ehara
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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Matsumoto M, Ueda K, Kukk E, Yoshida H, Tanaka T, Kitajima M, Tanaka H, Tamenori Y, Kuramoto K, Ehara M, Nakatsuji H. Vibrationally resolved C and O 1s photoelectron spectra of carbon monoxides. Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2005.09.094] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Honda Y, Hada M, Ehara M, Nakatsuji H, Michl J. Theoretical studies on magnetic circular dichroism by the finite perturbation method with relativistic corrections. J Chem Phys 2005; 123:164113. [PMID: 16268687 DOI: 10.1063/1.2080027] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A theoretical method for calculating magnetic circular dichroism (MCD) of molecules is presented. We examined the numerical accuracy and the stability of the finite perturbation (FP) method and the sum-over-state (SOS) perturbation method. The relativistic effects are shown to be important for the MCD spectra of molecules containing heavy elements. Calculations using the FP and the SOS methods were carried out for ethylene, para- and ortho-benzoquinone, showing that the FP method is superior to the SOS method, as expected. The relativistic effect was examined using the second-order Douglas-Kroll Hamiltonians for the halogen molecules F2, Cl2, Br2, and I2. The Faraday terms of I2 and Br2 were strongly affected by the relativistic effects, while the effect was negligible for Cl2 and F2.
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Affiliation(s)
- Y Honda
- Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-shi, Tokyo 192-0397, Japan.
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Kobayashi Y, Sato M, Taguchi H, Koike S, Nakatsuji H, Tanaka K. Molecular Detection of Verotoxigenic Escherichia coli (VTEC) from Animal Feces for Screening VTEC-shedders. Asian Australas J Anim Sci 2004. [DOI: 10.5713/ajas.2004.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sankari R, Ehara M, Nakatsuji H, Senba Y, Hosokawa K, Yoshida H, De Fanis A, Tamenori Y, Aksela S, Ueda K. Vibrationally resolved O 1s photoelectron spectrum of water. Chem Phys Lett 2003. [DOI: 10.1016/j.cplett.2003.08.108] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Miyahara T, Nakatsuji H, Hasegawa J, Osuka A, Aratani N, Tsuda A. Ground and excited states of linked and fused zinc porphyrin dimers: Symmetry adapted cluster (SAC)—configuration interaction (CI) study. J Chem Phys 2002. [DOI: 10.1063/1.1521763] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nakatsuji H, Hada M, Kawashima A. Electronic structures of dative metal-metal bonds; Ab initio molecular orbital calculations of (OC)5Os-M(CO)5 (M = tungsten, chromium) in comparison with (OC)5M-M(CO)5 (M = rhenium, manganese). Inorg Chem 2002. [DOI: 10.1021/ic00036a004] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hirao K, Nakatsuji H, Kato H, Yonezawa T. Theoretical study of the fluorine-fluorine nuclear spin coupling constants. I. Importance of orbital and spin dipolar terms. J Am Chem Soc 2002. [DOI: 10.1021/ja00767a004] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nakatsuji H, Inoue T, Nakao T. Theoretical study on metal NMR chemical shifts: electronic mechanism of the tin chemical shift. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100199a025] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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