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Niimi A, Limsirichaikul S, Kano K, Mizutani Y, Takeuchi T, Sawangsri P, Tran DQ, Kawamoto Y, Suzuki M. LASP1, CERS6, and Actin Form a Ternary Complex That Promotes Cancer Cell Migration. Cancers (Basel) 2023; 15:2781. [PMID: 37345118 DOI: 10.3390/cancers15102781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 06/23/2023] Open
Abstract
CERS6 is associated with metastasis and poor prognosis in non-small cell lung cancer (NSCLC) patients through d18:1/C16:0 ceramide (C16 ceramide)-mediated cell migration, though the detailed mechanism has not been elucidated. In the present study, examinations including co-immunoprecipitation, liquid chromatography, and tandem mass spectrometry analysis were performed to identify a novel binding partner of CERS6. Among the examined candidates, LASP1 was a top-ranked binding partner, with the LIM domain possibly required for direct interaction. In accord with those findings, CERS6 and LASP1 were found to co-localize on lamellipodia in several lung cancer cell lines. Furthermore, silencing of CERS6 and/or LASP1 significantly suppressed cell migration and lamellipodia formation, whereas ectopic addition of C16 ceramide partially rescued those phenotypes. Both LASP1 and CERS6 showed co-immunoprecipitation with actin, with those interactions markedly reduced when the LASP1-CERS6 complex was abolished. Based on these findings, it is proposed that LASP1-CERS6 interaction promotes cancer cell migration.
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Affiliation(s)
- Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
| | - Siripan Limsirichaikul
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
- Department of Biopharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Keiko Kano
- Institute of Transformative Bio-Molecules (WPI-ItbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Yasuyoshi Mizutani
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
| | - Patinya Sawangsri
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
| | - Dat Quoc Tran
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
| | - Yoshiyuki Kawamoto
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai 487-8501, Japan
| | - Motoshi Suzuki
- Department of Molecular Oncology, Fujita Health University, Toyoake 470-1192, Japan
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Niimi A, Akiyama Y, Homma Y, Kume H. The impact of arterial stiffness on under active bladder. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00079-9] [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: 02/12/2023]
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Mizutani Y, Shiogama K, Inada KI, Takeuchi T, Niimi A, Suzuki M, Tsutsumi Y. Enzyme-labeled Antigen Method: Factors Influencing the Deterioration of Antigen-binding Activity of Specific Antibodies during Formalin Fixation and Paraffin Embedding. Acta Histochem Cytochem 2022; 55:129-148. [DOI: 10.1267/ahc.22-00023] [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] [Received: 03/06/2022] [Accepted: 08/23/2022] [Indexed: 11/22/2022] Open
Affiliation(s)
- Yasuyoshi Mizutani
- Department of Molecular Oncology, Fujita Health University School of Medicine
| | - Kazuya Shiogama
- Department of Morphology and Pathological Diagnosis, Fujita Health University School of Medical Sciences
| | - Ken-ichi Inada
- Department of Diagnostic Pathology, Fujita Health University School of Medicine
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, Fujita Health University School of Medicine
| | - Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University School of Medicine
| | - Motoshi Suzuki
- Department of Molecular Oncology, Fujita Health University School of Medicine
| | - Yutaka Tsutsumi
- Diagnostic Pathology Clinic, Pathos Tsutsumi (Tsutusmi Byori Shindanka Clinic)
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Horiuchi M, Uemura T, Suzuki Y, Kagawa Y, Fukuda S, Maeno K, Oguri T, Mori Y, Sone K, Takeda N, Fukumitsu K, Kanemitsu Y, Tajiri T, Ohkubo H, Ito Y, Niimi A. OA07.03 Association Between Genetic Variation in the ATP-binding Cassette Transporter ABCC10 and nab-PTX Treatment in Japanese Cohort. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.040] [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: 11/15/2022]
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Kondo Y, Watanabe S, Naoe A, Takeuchi T, Niimi A, Suzuki M, Asai N, Okada S, Tsuchiya T, Murayama M, Yasui T, Inoue M, Suzuki T. Antitumor effect of polyphyllin D on liver metastases of neuroblastoma. Pediatr Surg Int 2022; 38:1157-1163. [PMID: 35699751 DOI: 10.1007/s00383-022-05146-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/22/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE We previously reported that polyphyllin D, a main component of the traditional Chinese medicinal herb Paris polyphylla, exhibited anticancer effects in vitro against human neuroblastoma cells. The aims of this investigation was to examine the presence or absence of in vivo anti-metastasis effects of polyphyllin D were to establish a liver metastasis model of neuroblastoma and to evaluate the anti-metastasis effects of polyphyllin D. METHODS Subcutaneous and intraperitoneal tumors, and metastasis models were established in immune-deficient BALB/c nude and BALB/c Rag-2/Jak3 double-deficient (BRJ) mice using the human neuroblastoma cell lines IMR-32, LA-N-2, or NB-69. For evaluating polyphyllin D activity, we used a mouse model of liver metastasis with the IMR-32 cells line injected through the tail vein. We analyzed the livers number and area of liver tumors in of the phosphate buffer solution- and polyphyllin D-treated groups. RESULTS Liver metastasis and intraperitoneal dissemination models were successfully established in immune-deficient BRJ mice using the three human neuroblastoma cell lines. In the liver metastasis, the model of IMR-32 cells, we found that polyphyllin D suppressed both the number and total area of metastatic foci the average number of metastatic foci, average focus areas, and number of cleaved caspase-3-positive cells were significantly lower in the polyphyllin D group (p = 0.016, 0.020, 0.043, respectively). CONCLUSIONS We developed a mouse models of neuroblastoma metastasis and demonstrated for the first time that polyphyllin D has an antitumor effect on neuroblastoma liver metastases.
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Affiliation(s)
- Yasuhiro Kondo
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan.
| | - Shunsuke Watanabe
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Atsuki Naoe
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Motoshi Suzuki
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Naoya Asai
- Department of Pathology, Fujita Health University, Toyoake, Japan
| | - Seiji Okada
- Division of Hematopoiesis, Joint Research Center for Human Retrovirus Infection and Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tomonori Tsuchiya
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Mika Murayama
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Toshihiro Yasui
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Mikihiro Inoue
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
| | - Tatsuya Suzuki
- Department of Pediatric Surgery, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192, Japan
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Shi H, Niimi A, Takeuchi T, Shiogama K, Mizutani Y, Kajino T, Inada K, Hase T, Hatta T, Shibata H, Fukui T, Chen-Yoshikawa TF, Nagano K, Murate T, Kawamoto Y, Tomida S, Takahashi T, Suzuki M. CEBPγ facilitates lamellipodia formation and cancer cell migration through CERS6 upregulation. Cancer Sci 2021; 112:2770-2780. [PMID: 33934437 PMCID: PMC8253294 DOI: 10.1111/cas.14928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/06/2020] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 12/25/2022] Open
Abstract
Ceramide synthase 6 (CERS6) promotes lung cancer metastasis by stimulating cancer cell migration. To examine the underlying mechanisms, we performed luciferase analysis of the CERS6 promoter region and identified the Y-box as a cis-acting element. As a parallel analysis of database records for 149 non-small-cell lung cancer (NSCLC) cancer patients, we screened for trans-acting factors with an expression level showing a correlation with CERS6 expression. Among the candidates noted, silencing of either CCAAT enhancer-binding protein γ (CEBPγ) or Y-box binding protein 1 (YBX1) reduced the CERS6 expression level. Following knockdown, CEBPγ and YBX1 were found to be independently associated with reductions in ceramide-dependent lamellipodia formation as well as migration activity, while only CEBPγ may have induced CERS6 expression through specific binding to the Y-box. The mRNA expression levels of CERS6, CEBPγ, and YBX1 were positively correlated with adenocarcinoma invasiveness. YBX1 expression was observed in all 20 examined clinical lung cancer specimens, while 6 of those showed a staining pattern similar to that of CERS6. The present findings suggest promotion of lung cancer migration by possible involvement of the transcription factors CEBPγ and YBX1.
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Affiliation(s)
- Hanxiao Shi
- Department of Molecular Oncology, School of Medicine, Fujita Health University, Toyoake, Japan.,Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsuko Niimi
- Department of Molecular Oncology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Kazuya Shiogama
- Department of Morphology and Cell Function, School of Medical Sciences, Fujita Health University, Toyoake, Japan
| | - Yasuyoshi Mizutani
- Department of Molecular Oncology, School of Medicine, Fujita Health University, Toyoake, Japan
| | - Taisuke Kajino
- Division of Molecular Diagnostics, Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Kenichi Inada
- Diagnostic Pathology, Bantane Hospital, Fujita Health University, Toyoake, Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takahiro Hatta
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hirofumi Shibata
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayuki Fukui
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Kazuki Nagano
- Department of Pathophysiological Laboratory Science, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Murate
- Department of Pathophysiological Laboratory Science, Nagoya University Graduate School of Medicine, Nagoya, Japan.,College of Life and Health Sciences, Chubu University, Kasugai, Japan
| | | | - Shuta Tomida
- Center for Comprehensive Genomic Medicine, Okayama University Hospital, Okayama, Japan
| | - Takashi Takahashi
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Aichi Cancer Center, Nagoya, Japan
| | - Motoshi Suzuki
- Department of Molecular Oncology, School of Medicine, Fujita Health University, Toyoake, Japan
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Suzuki M, Cao K, Kato S, Mizutani N, Tanaka K, Arima C, Tai MC, Nakatani N, Yanagisawa K, Takeuchi T, Shi H, Mizutani Y, Niimi A, Taniguchi T, Fukui T, Yokoi K, Wakahara K, Hasegawa Y, Mizutani Y, Iwaki S, Fujii S, Satou A, Tamiya-Koizumi K, Murate T, Kyogashima M, Tomida S, Takahashi T. CERS6 required for cell migration and metastasis in lung cancer. J Cell Mol Med 2020; 24:11949-11959. [PMID: 32902157 PMCID: PMC7579715 DOI: 10.1111/jcmm.15817] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 03/31/2020] [Revised: 07/19/2020] [Accepted: 07/30/2020] [Indexed: 02/01/2023] Open
Abstract
Sphingolipids constitute a class of bio‐reactive molecules that transmit signals and exhibit a variety of physical properties in various cell types, though their functions in cancer pathogenesis have yet to be elucidated. Analyses of gene expression profiles of clinical specimens and a panel of cell lines revealed that the ceramide synthase gene CERS6 was overexpressed in non–small‐cell lung cancer (NSCLC) tissues, while elevated expression was shown to be associated with poor prognosis and lymph node metastasis. NSCLC profile and in vitro luciferase analysis results suggested that CERS6 overexpression is promoted, at least in part, by reduced miR‐101 expression. Under a reduced CERS6 expression condition, the ceramide profile became altered, which was determined to be associated with decreased cell migration and invasion activities in vitro. Furthermore, CERS6 knockdown suppressed RAC1‐positive lamellipodia/ruffling formation and attenuated lung metastasis efficiency in mice, while forced expression of CERS6 resulted in an opposite phenotype in examined cell lines. Based on these findings, we consider that ceramide synthesis by CERS6 has important roles in lung cancer migration and metastasis.
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Affiliation(s)
- Motoshi Suzuki
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Ke Cao
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Seiichi Kato
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Naoki Mizutani
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Kouji Tanaka
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Chinatsu Arima
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mei Chee Tai
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norie Nakatani
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoshi Yanagisawa
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Hanxiao Shi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Yasuyoshi Mizutani
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Tetsuo Taniguchi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayuki Fukui
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohei Yokoi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukiko Mizutani
- Laboratory of Biomembrane and Biofunctional Chemistry, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Soichiro Iwaki
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Satoshi Fujii
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Akira Satou
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Keiko Tamiya-Koizumi
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Takashi Murate
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Mamoru Kyogashima
- Division of Microbiology and Molecular Cell Biology, Nihon Pharmaceutical University, Saitama, Japan
| | - Shuta Tomida
- Department of Biobank, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takashi Takahashi
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Yoshizawa A, Takahara K, Saruta M, Zennami K, Nukaya T, Fukaya K, Ichino M, Fukami N, Niimi A, Sasaki H, Kusaka M, Suzuki M, Sumitomo M, Shiroki R. Combined α-methylacyl-CoA racemase inhibition and docetaxel treatment reduce cell proliferation and decrease expression of heat shock protein 27 in androgen receptor-variant-7-positive prostate cancer cells. Prostate Int 2020; 9:18-24. [PMID: 33912510 PMCID: PMC8053692 DOI: 10.1016/j.prnil.2020.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/02/2020] [Revised: 06/19/2020] [Accepted: 07/03/2020] [Indexed: 12/24/2022] Open
Abstract
Background Disease progression in castrate-resistant prostate cancer (PCa) is most commonly driven by the reactivation of androgen receptor (AR) signaling and involves AR splice variants including ARV7. Materials and methods We used the ARV7-positive PCa cell line, 22Rv1, to study the relationship of the PCa marker α-methylacyl-CoA racemase (AMACR), AR, and ARV7 in PCa. Results Docetaxel addition but not AMACR inhibition decreased the proliferation of 22Rv1 cells. The combination of AMACR inhibition and docetaxel treatment resulted in a maximum reduction of cell proliferation. The Western blotting analysis revealed that both AR and ARV7 expression were significantly decreased with the use of charcoal-stripped serum following AMACR inhibition and docetaxel treatment. AMACR inhibition and docetaxel treatment in the charcoal-stripped serum condition reduced the proliferation of 22Rv1, possibly via the downregulation of the heat shock protein 27. Conclusion Using cell proliferation and Western blot analysis, we demonstrated that AMACR inhibition and docetaxel treatment, under androgen deprivation conditions, significantly reduced the proliferation of ARV7 positive cancer cells and decreased the levels of AR and ARV7 expression, possibly via downregulation of heat shock protein 27.
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Affiliation(s)
- Atsuhiko Yoshizawa
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Kiyoshi Takahara
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
- Corresponding author. Department of Urology, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi, 470-1192 Japan
| | - Masanobu Saruta
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Kenji Zennami
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Takuhisa Nukaya
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Kosuke Fukaya
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Manabu Ichino
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Naohiko Fukami
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Hitomi Sasaki
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Mamoru Kusaka
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Motoshi Suzuki
- Department of Molecular Oncology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Makoto Sumitomo
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - Ryoichi Shiroki
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
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Takeuchi A, Oguri T, Fukuda S, Kagawa Y, Sone K, Takakuwa O, Uemura T, Maeno K, Fukumitsu K, Kanemitsu Y, Ohkubo H, Takemura M, Ito Y, Niimi A. EP1.01-12 SNPs of Organic Cation Transporter 6 Associate with the Efficacy of Platinum Combination Chemotherapy. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1979] [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: 10/25/2022]
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10
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Hagiwara Y, Oike T, Niimi A, Yamauchi M, Sato H, Limsirichaikul S, Held KD, Nakano T, Shibata A. Clustered DNA double-strand break formation and the repair pathway following heavy-ion irradiation. J Radiat Res 2019; 60:69-79. [PMID: 30476166 PMCID: PMC6373698 DOI: 10.1093/jrr/rry096] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 05/16/2023]
Abstract
Photons, such as X- or γ-rays, induce DNA damage (distributed throughout the nucleus) as a result of low-density energy deposition. In contrast, particle irradiation with high linear energy transfer (LET) deposits high-density energy along the particle track. High-LET heavy-ion irradiation generates a greater number and more complex critical chromosomal aberrations, such as dicentrics and translocations, compared with X-ray or γ irradiation. In addition, the formation of >1000 bp deletions, which is rarely observed after X-ray irradiation, has been identified following high-LET heavy-ion irradiation. Previously, these chromosomal aberrations have been thought to be the result of misrepair of complex DNA lesions, defined as DNA damage through DNA double-strand breaks (DSBs) and single-strand breaks as well as base damage within 1-2 helical turns (<3-4 nm). However, because the scale of complex DNA lesions is less than a few nanometers, the large-scale chromosomal aberrations at a micrometer level cannot be simply explained by complex DNA lesions. Recently, we have demonstrated the existence of clustered DSBs along the particle track through the use of super-resolution microscopy. Furthermore, we have visualized high-level and frequent formation of DSBs at the chromosomal boundary following high-LET heavy-ion irradiation. In this review, we summarize the latest findings regarding the hallmarks of DNA damage structure and the repair pathway following heavy-ion irradiation. Furthermore, we discuss the mechanism through which high-LET heavy-ion irradiation may induce dicentrics, translocations and large deletions.
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Affiliation(s)
- Yoshihiko Hagiwara
- Department of Radiation Oncology, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan
| | - Motohiro Yamauchi
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, Japan
| | | | - Kathryn D Held
- Department of Radiation Oncology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA
- International Open Laboratory, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, Japan
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, Japan
| | - Atsushi Shibata
- Education and Research Support Center (ERSC), Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, Japan
- Corresponding author. Education and Research Support Center, Graduate School of Medicine, Gunma University, 3-39-22, Showa-machi, Maebashi, Gunma, 371-8511, Japan. Tel: +81-27-220-7977; Fax: +81-27-220-7909;
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Harada T, Udagawa H, Sugiyama E, Atagi S, Koyama R, Watanabe S, Nakamura Y, Harada D, Hataji O, Tanaka F, Niimi A, Kida H, Satouchi M, Inoue A, Urata Y, Yamane Y, Yoh K, Yoshioka H, Yamanaka T, Goto K. P1.01-33 Randomized Phase 2 Study Comparing CBDCA+PTX+BEV and CDDP+PEM+BEV in Treatment-Naïve Advanced Non-Sq NSCLC (CLEAR study). J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Hagiwara Y, Sato H, Permata TBM, Niimi A, Yamauchi M, Oike T, Nakano T, Shibata A. Analysis of programmed death-ligand 1 expression in primary normal human dermal fibroblasts after DNA damage. Hum Immunol 2018; 79:627-631. [DOI: 10.1016/j.humimm.2018.05.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 05/14/2018] [Accepted: 05/29/2018] [Indexed: 12/26/2022]
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Kanemitsu Y, Matsumoto H, Oguma T, Nagasaki T, Ito I, Izuhara Y, Tajiri T, Iwata T, Mishima M, Niimi A. Independent Factors Contributing to Daytime and Nighttime Asthmatic Cough Refractory to Inhaled Corticosteroids. J Investig Allergol Clin Immunol 2018; 29:30-39. [PMID: 29956665 DOI: 10.18176/jiaci.0281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Cough is a common feature of asthma, which is often resistant to inhaled corticosteroids (ICSs). The pathophysiology of this refractoriness may differ between daytime and nighttime asthmatic cough. We sought to identify factors contributing to ICS-refractory daytime and nighttime asthmatic cough. METHODS Sixty-seven patients with asthma presenting solely or predominantly with chronic cough were prospectively enrolled from April 2012 to December 2014. At baseline and 12 weeks after ICS treatment, the capsaicin cough threshold (C2, C5) and methacholine airway sensitivity and reactivity were examined. A visual analog scale (VAS) and numeric scores were used to evaluate daytime and nighttime cough symptoms separately. The Japanese version of the Leicester Cough Questionnaire was also completed. When either the VAS or numeric scores showed an improvement of ≥50% or ≥2 points, patients were considered responders to ICS treatment. RESULTS Fifty-five patients were eligible for evaluation. Subjective cough indices improved significantly at 12 weeks after ICS treatment (P<.001). Multivariate analysis revealed that lower C2 significantly contributed to residual daytime cough (P=.04). Meanwhile, methacholine hyperreactivity and lower IgE levels were predictors of the nighttime residual cough (P=.002 and P=.03, respectively). CONCLUSIONS Heightened cough reflex sensitivity is an independent factor of daytime asthmatic cough that is refractory to ICSs. In contrast, airway hyperreactivity and less atopic status contribute to ICS-refractory nighttime cough.
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Affiliation(s)
- Y Kanemitsu
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - H Matsumoto
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Oguma
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Nagasaki
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - I Ito
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Izuhara
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Tajiri
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Iwata
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - M Mishima
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - A Niimi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
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14
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Hagiwara Y, Niimi A, Isono M, Yamauchi M, Yasuhara T, Limsirichaikul S, Oike T, Sato H, Held KD, Nakano T, Shibata A. 3D-structured illumination microscopy reveals clustered DNA double-strand break formation in widespread γH2AX foci after high LET heavy-ion particle radiation. Oncotarget 2017; 8:109370-109381. [PMID: 29312614 PMCID: PMC5752527 DOI: 10.18632/oncotarget.22679] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [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: 06/22/2017] [Accepted: 11/08/2017] [Indexed: 01/09/2023] Open
Abstract
DNA double-strand breaks (DSBs) induced by ionising radiation are considered the major cause of genotoxic mutations and cell death. While DSBs are dispersed throughout chromatin after X-rays or γ-irradiation, multiple types of DNA damage including DSBs, single-strand breaks and base damage can be generated within 1–2 helical DNA turns, defined as a complex DNA lesion, after high Linear Energy Transfer (LET) particle irradiation. In addition to the formation of complex DNA lesions, recent evidence suggests that multiple DSBs can be closely generated along the tracks of high LET particle irradiation. Herein, by using three dimensional (3D)-structured illumination microscopy, we identified the formation of 3D widespread γH2AX foci after high LET carbon-ion irradiation. The large γH2AX foci in G2-phase cells encompassed multiple foci of replication protein A (RPA), a marker of DSBs undergoing resection during homologous recombination. Furthermore, we demonstrated by 3D analysis that the distance between two individual RPA foci within γH2AX foci was approximately 700 nm. Together, our findings suggest that high LET heavy-ion particles induce clustered DSB formation on a scale of approximately 1 μm3. These closely localised DSBs are considered to be a risk for the formation of chromosomal rearrangement after heavy-ion irradiation.
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Affiliation(s)
- Yoshihiko Hagiwara
- Education and Research Support Center (ERSC), Gunma University, Maebashi 371-8511, Japan.,Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi 371-8511, Japan
| | - Mayu Isono
- Department of Molecular Metabolic Regulation Research, Sasaki Institute, Tokyo 101-0062, Japan
| | - Motohiro Yamauchi
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki 852-8523, Japan
| | - Takaaki Yasuhara
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8655, Japan
| | | | - Takahiro Oike
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
| | - Kathryn D Held
- Department of Radiation Oncology, Massachusetts General Hospital/Harvard Medical School, Boston, MA 02114, USA.,International Open Laboratory, Gunma University Initiative for Advanced Research (GIAR), Gunma 371-8511, Japan
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan.,Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi 371-8511, Japan
| | - Atsushi Shibata
- Education and Research Support Center (ERSC), Gunma University, Maebashi 371-8511, Japan
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15
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Sato H, Niimi A, Yasuhara T, Permata TBM, Hagiwara Y, Isono M, Nuryadi E, Sekine R, Oike T, Kakoti S, Yoshimoto Y, Held KD, Suzuki Y, Kono K, Miyagawa K, Nakano T, Shibata A. DNA double-strand break repair pathway regulates PD-L1 expression in cancer cells. Nat Commun 2017; 8:1751. [PMID: 29170499 PMCID: PMC5701012 DOI: 10.1038/s41467-017-01883-9] [Citation(s) in RCA: 455] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 10/23/2017] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence suggests that exogenous cellular stress induces PD-L1 upregulation in cancer. A DNA double-strand break (DSB) is the most critical type of genotoxic stress, but the involvement of DSB repair in PD-L1 expression has not been investigated. Here we show that PD-L1 expression in cancer cells is upregulated in response to DSBs. This upregulation requires ATM/ATR/Chk1 kinases. Using an siRNA library targeting DSB repair genes, we discover that BRCA2 depletion enhances Chk1-dependent PD-L1 upregulation after X-rays or PARP inhibition. In addition, we show that Ku70/80 depletion substantially enhances PD-L1 upregulation after X-rays. The upregulation by Ku80 depletion requires Chk1 activation following DNA end-resection by Exonuclease 1. DSBs activate STAT1 and STAT3 signalling, and IRF1 is required for DSB-dependent PD-L1 upregulation. Thus, our findings reveal the involvement of DSB repair in PD-L1 expression and provide mechanistic insight into how PD-L1 expression is regulated after DSBs.
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Affiliation(s)
- Hiro Sato
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, 371-8511, Japan
| | - Takaaki Yasuhara
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Tiara Bunga Mayang Permata
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Yoshihiko Hagiwara
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Mayu Isono
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma, 371-8511, Japan
| | - Endang Nuryadi
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Ryota Sekine
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma, 371-8511, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Sangeeta Kakoti
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Yuya Yoshimoto
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan
| | - Kathryn D Held
- Department of Radiation Oncology, Massachusetts General Hospital/Harvard Medical School, Boston, MA, 02114, USA.,International Open Laboratory, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, 371-8511, Japan
| | - Yoshiyuki Suzuki
- Department of Radiation Oncology, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Koji Kono
- Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, 960-1295, Japan
| | - Kiyoshi Miyagawa
- Laboratory of Molecular Radiology, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, 371-8511, Japan.,Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Maebashi, Gunma, 371-8511, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma, 371-8511, Japan. .,Education and Research Support Center, Graduate School of Medicine, Gunma University, Maebashi, Gunma, 371-8511, Japan.
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16
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Isono M, Niimi A, Oike T, Hagiwara Y, Sato H, Sekine R, Yoshida Y, Isobe SY, Obuse C, Nishi R, Petricci E, Nakada S, Nakano T, Shibata A. BRCA1 Directs the Repair Pathway to Homologous Recombination by Promoting 53BP1 Dephosphorylation. Cell Rep 2017; 18:520-532. [PMID: 28076794 DOI: 10.1016/j.celrep.2016.12.042] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [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: 03/04/2016] [Revised: 10/03/2016] [Accepted: 12/13/2016] [Indexed: 11/16/2022] Open
Abstract
BRCA1 promotes homologous recombination (HR) by activating DNA-end resection. By contrast, 53BP1 forms a barrier that inhibits DNA-end resection. Here, we show that BRCA1 promotes DNA-end resection by relieving the 53BP1-dependent barrier. We show that 53BP1 is phosphorylated by ATM in S/G2 phase, promoting RIF1 recruitment, which inhibits resection. 53BP1 is promptly dephosphorylated and RIF1 released, despite remaining unrepaired DNA double-strand breaks (DSBs). When resection is impaired by CtIP/MRE11 endonuclease inhibition, 53BP1 phosphorylation and RIF1 are sustained due to ongoing ATM signaling. BRCA1 depletion also sustains 53BP1 phosphorylation and RIF1 recruitment. We identify the phosphatase PP4C as having a major role in 53BP1 dephosphorylation and RIF1 release. BRCA1 or PP4C depletion impairs 53BP1 repositioning, EXO1 recruitment, and HR progression. 53BP1 or RIF1 depletion restores resection, RAD51 loading, and HR in PP4C-depleted cells. Our findings suggest that BRCA1 promotes PP4C-dependent 53BP1 dephosphorylation and RIF1 release, directing repair toward HR.
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Affiliation(s)
- Mayu Isono
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan; Gunma University Heavy Ion Medical Center, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Atsuko Niimi
- Gunma University Initiative for Advanced Research, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Yoshihiko Hagiwara
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan; Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Ryota Sekine
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Yukari Yoshida
- Gunma University Heavy Ion Medical Center, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Shin-Ya Isobe
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - Chikashi Obuse
- Graduate School of Life Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan
| | - Ryotaro Nishi
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
| | - Elena Petricci
- Department of Biotechnology, Chemistry, and Pharmacy, Università degli Studi di Siena, 53100 Siena, Italy
| | - Shinichiro Nakada
- Department of Bioregulation and Cellular Response, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takashi Nakano
- Gunma University Heavy Ion Medical Center, Gunma University, Maebashi, Gunma 371-8511, Japan; Gunma University Initiative for Advanced Research, Gunma University, Maebashi, Gunma 371-8511, Japan; Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan.
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17
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Atagi S, Udagawa H, Sugiyama E, Hataji O, Tanaka F, Niimi A, Kida H, Kawa Y, Yamanaka T, Goto K. P1.03-027 Randomized Phase 2 Study Comparing CBDCA+PTX+BEV and CDDP+PEM+BEV in Treatment-Naïve Advanced Non-Sq NSCLC (CLEAR Study). J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.831] [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] [Indexed: 10/18/2022]
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18
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Affiliation(s)
- K Maeno
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan.
| | - S Fukuda
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - T Oguri
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - A Niimi
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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19
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Sato H, Niimi A, Yasuhara T, Isono M, Permata T, Sekine R, Oike T, Nuryadi E, Kakoti S, Yoshimoto Y, Held K, Suzuki Y, Kono K, Miyagawa K, Nakano T, Shibata A. Molecular Mechanism of PD-L1 Upregulation in Cancer Cells after X-Ray Irradiation. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.375] [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: 12/01/2022]
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20
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Sunadome H, Matsumoto H, Petrova G, Kanemitsu Y, Tohda Y, Horiguchi T, Kita H, Kuwabara K, Tomii K, Otsuka K, Fujimura M, Ohkura N, Tomita K, Yokoyama A, Ohnishi H, Nakano Y, Oguma T, Hozawa S, Nagasaki T, Ito I, Oguma T, Inoue H, Tajiri T, Iwata T, Izuhara Y, Ono J, Ohta S, Hirota T, Tamari M, Yokoyama T, Niimi A, Izuhara K, Mishima M. Cover Image. Clin Exp Allergy 2017. [DOI: 10.1111/cea.12985] [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: 11/28/2022]
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21
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Nakajima NI, Niimi A, Isono M, Oike T, Sato H, Nakano T, Shibata A. Inhibition of the HDAC/Suv39/G9a pathway restores the expression of DNA damage-dependent major histocompatibility complex class I-related chain A and B in cancer cells. Oncol Rep 2017; 38:693-702. [PMID: 28677817 PMCID: PMC5562072 DOI: 10.3892/or.2017.5773] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 05/05/2017] [Indexed: 12/29/2022] Open
Abstract
Immunotherapy is expected to be promising as a next generation cancer therapy. Immunoreceptors are often activated constitutively in cancer cells, however, such levels of ligand expression are not effectively recognized by the native immune system due to tumor microenvironmental adaptation. Studies have demonstrated that natural-killer group 2, member D (NKG2D), a major activating immunoreceptor, responds to DNA damage. The upregulation of major histocompatibility complex class I-related chain A and B (MICA/B) (members of NKG2D ligands) expression after DNA damage is associated with NK cell-mediated killing of cancer cells. However, the regulation of DNA damage-induced MICA/B expression has not been fully elucidated in the context of the types of cancer cell lines. In the present study, we found that MICA/B expression varied between cancer cell lines after DNA damage. Screening in terms of chromatin remodeling identified that inhibitors related to chromatin relaxation via post-translational modification on histone H3K9, i.e. HDAC, Suv39 or G9a inhibition, restored DNA damage-dependent MICA/B expression in insensitive cells. In addition, we revealed that the restored MICA/B expression was dependent on ATR as well as E2F1, a transcription factor. We further revealed that low‑dose treatment of an HDAC inhibitor was sufficient to restore MICA/B expression in insensitive cells. Finally, we demonstrated that HDAC inhibition restored DNA damage‑dependent cytotoxic NK activity against insensitive cells. Thus, the present study revealed that DNA damage‑dependent MICA/B expression in insensitive cancer cells can be restored by chromatin relaxation via the HDAC/Suv39/G9a pathway. Collectively, manipulation of chromatin status by therapeutic cancer drugs may potentiate the antitumor effect by enhancing immune activation following radiotherapy and DNA damage-associated chemotherapy.
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Affiliation(s)
- Nakako Izumi Nakajima
- Radiological Science Research and Development Directorate, National Institutes for Quantum and Radiological Science and Technology, Chiba 263-8555, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research, Maebashi, Gunma 371-8511, Japan
| | - Mayu Isono
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University, Maebashi, Gunma 371-8511, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma 371-8511, Japan
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22
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Sunadome H, Matsumoto H, Petrova G, Kanemitsu Y, Tohda Y, Horiguchi T, Kita H, Kuwabara K, Tomii K, Otsuka K, Fujimura M, Ohkura N, Tomita K, Yokoyama A, Ohnishi H, Nakano Y, Oguma T, Hozawa S, Nagasaki T, Ito I, Oguma T, Inoue H, Tajiri T, Iwata T, Izuhara Y, Ono J, Ohta S, Hirota T, Tamari M, Yokoyama T, Niimi A, Izuhara K, Mishima M. IL4Rα and ADAM33 as genetic markers in asthma exacerbations and type-2 inflammatory endotype. Clin Exp Allergy 2017; 47:998-1006. [PMID: 28326636 DOI: 10.1111/cea.12927] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 03/02/2017] [Accepted: 03/08/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND Genetic markers of susceptibility to asthma exacerbations in adults remain unclear. OBJECTIVE To identify genetic markers of asthma exacerbations, particularly in patients with type-2 inflammatory endotype. METHODS In this observational study of patients enrolled in the Kinki Hokuriku Airway disease Conference multicenter study, frequency of exacerbations requiring systemic corticosteroids during 2 years after enrolment and associated risk factors was determined. For genetic marker analysis, interleukin-4 receptor α (IL4RA) rs8832 and a disintegrin and metalloprotease 33 (ADAM33) S_2 (rs528557), T_1 (rs2280091), T_2 (rs2280090), and V_4 (rs2787094) variants were included. Elevated serum periostin levels at enrolment (≥95 ng/mL, defined as type-2 inflammatory endotype) were considered in the analysis. RESULTS Among 217 patients who were successfully followed up for 2 years after enrolment, 60 patients showed at least one asthma exacerbation during the 2 years. Airflow limitation (%FEV1 <80%) and recent exacerbations but not genetic variants were identified as risk markers of exacerbations. A total of 27 patients showed type-2 inflammatory endotype (serum periostin ≥95 ng/mL at enrolment) and subsequent exacerbations; risk factors in these patients were airflow limitation (odds ratio, 6.51; 95% confidence interval (CI): 2.37-18.6; P=.0003), GG genotype of IL4RA rs8832 (odds ratio, 4.01; 95% CI: 1.47-11.0; P=.007), and A allele of ADAM33 T_2 (odds ratio, 2.81; 95% CI: 1.05-7.67; P=.04) by multivariate analysis. In addition, GG genotype of IL4RA rs8832 was associated with type-2 endotype, whereas A allele of ADAM33 T_2 was associated with mixed type of eosinophilic/type-2 and neutrophilic inflammations. CONCLUSIONS AND CLINICAL RELEVANCE IL4RA and ADAM33 variants may be risk markers of asthma exacerbations in type-2 inflammatory endotype. Precise endotyping may facilitate the identification of genetic risk markers of asthma exacerbations.
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Affiliation(s)
- H Sunadome
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan
| | - H Matsumoto
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan
| | - G Petrova
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Kanemitsu
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan
| | - Y Tohda
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine and Allergology, Faculty of Medicine, Kinki University, Sayama, Japan
| | - T Horiguchi
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Internal Medicine, Fujita Health University Second Educational Hospital, Nagoya, Japan
| | - H Kita
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine, Takatsuki Red Cross Hospital, Takatsuki, Japan
| | - K Kuwabara
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Internal Medicine, Fujita Health University Second Educational Hospital, Nagoya, Japan
| | - K Tomii
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | - K Otsuka
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine, Kobe City Medical Center General Hospital, Kobe, Japan
| | - M Fujimura
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine, Cellular Transplantation Biology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - N Ohkura
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine, Cellular Transplantation Biology, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Tomita
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Respiratory Medicine and Allergology, Faculty of Medicine, Kinki University, Sayama, Japan
| | - A Yokoyama
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Hematology and Respiratory Medicine, Kochi University, Kochi, Japan
| | - H Ohnishi
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Department of Hematology and Respiratory Medicine, Kochi University, Kochi, Japan
| | - Y Nakano
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Division of Respiratory Medicine, Department of Internal Medicine, Shiga University of Medical Science, Otsu, Japan
| | - T Oguma
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Division of Respiratory Medicine, Department of Internal Medicine, Shiga University of Medical Science, Otsu, Japan
| | - S Hozawa
- Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Hiroshima Allergy and Respiratory Clinic, Hiroshima, Japan
| | - T Nagasaki
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - I Ito
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Oguma
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - H Inoue
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Tajiri
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - T Iwata
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y Izuhara
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - J Ono
- Shino-Test Corporation, Sagamihara, Japan
| | - S Ohta
- Department of Laboratory Medicine, Saga Medical School, Saga, Japan
| | - T Hirota
- Laboratory for Respiratory and Allergic Diseases, Core for Genomic Medicine, Center for Integrative Medical Sciences, Institute of Physical and Chemical Research (RIKEN), Yokohama, Japan
| | - M Tamari
- Laboratory for Respiratory and Allergic Diseases, Core for Genomic Medicine, Center for Integrative Medical Sciences, Institute of Physical and Chemical Research (RIKEN), Yokohama, Japan
| | - T Yokoyama
- Department of Health Promotion, National Institute of Public Health, Wako, Japan
| | - A Niimi
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan.,Division of Respiratory Medicine, Department of Medical Oncology and Immunology, Nagoya City University School of Medical Sciences, Nagoya, Japan
| | - K Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan
| | - M Mishima
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.,Kinki Hokuriku Airway disease Conference (KiHAC), Sayama, Japan
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23
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Yamauchi M, Shibata A, Suzuki K, Suzuki M, Niimi A, Kondo H, Miura M, Hirakawa M, Tsujita K, Yamashita S, Matsuda N. Regulation of pairing between broken DNA-containing chromatin regions by Ku80, DNA-PKcs, ATM, and 53BP1. Sci Rep 2017; 7:41812. [PMID: 28155885 PMCID: PMC5290537 DOI: 10.1038/srep41812] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 12/28/2016] [Indexed: 12/12/2022] Open
Abstract
Chromosome rearrangement is clinically and physiologically important because it can produce oncogenic fusion genes. Chromosome rearrangement requires DNA double-strand breaks (DSBs) at two genomic locations and misrejoining between the DSBs. Before DSB misrejoining, two DSB-containing chromatin regions move and pair with each other; however, the molecular mechanism underlying this process is largely unknown. We performed a spatiotemporal analysis of ionizing radiation-induced foci of p53-binding protein 1 (53BP1), a marker for DSB-containing chromatin. We found that some 53BP1 foci were paired, indicating that the two damaged chromatin regions neighboured one another. We searched for factors regulating the foci pairing and found that the number of paired foci increased when Ku80, DNA-PKcs, or ATM was absent. In contrast, 53BP1 depletion reduced the number of paired foci and dicentric chromosomes—an interchromosomal rearrangement. Foci were paired more
frequently in heterochromatin than in euchromatin in control cells. Additionally, the reduced foci pairing in 53BP1-depleted cells was rescued by concomitant depletion of a heterochromatin building factor such as Krüppel-associated box-associated protein 1 or chromodomain helicase DNA-binding protein 3. These findings indicate that pairing between DSB-containing chromatin regions was suppressed by Ku80, DNA-PKcs, and ATM, and this pairing was promoted by 53BP1 through chromatin relaxation.
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Affiliation(s)
- Motohiro Yamauchi
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Keiji Suzuki
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Masatoshi Suzuki
- Department of Pathology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo-machi, Aoba-ku Sendai, Miyagi, 980-8575, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Hisayoshi Kondo
- Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Miwa Miura
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Miyako Hirakawa
- Radioisotope Research Center, Life Science Support Center, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Keiko Tsujita
- School of Medicine, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Shunichi Yamashita
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
| | - Naoki Matsuda
- Department of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, 1-12-4 Sakamoto, Nagasaki, 852-8523, Japan
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24
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Kobayashi D, Oike T, Shibata A, Niimi A, Kubota Y, Sakai M, Amornwhichet N, Yoshimoto Y, Hagiwara Y, Kimura Y, Hirota Y, Sato H, Isono M, Yoshida Y, Kohno T, Ohno T, Nakano T. Mitotic catastrophe is a putative mechanism underlying the weak correlation between sensitivity to carbon ions and cisplatin. Sci Rep 2017; 7:40588. [PMID: 28091564 PMCID: PMC5238371 DOI: 10.1038/srep40588] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 12/09/2016] [Indexed: 02/07/2023] Open
Abstract
In cancer therapy today, carbon ion radiotherapy is used mainly as monotherapy, whereas cisplatin is used concomitantly with X-ray radiotherapy. The effectiveness of concomitant carbon ions and cisplatin is unclear. To obtain the information on the mechanisms potentially shared between carbon ions or X-rays and cisplatin, we assessed the correlation of sensitivity to the single treatments. In 20 human cancer cell lines, sensitivity to X-rays strongly correlated with sensitivity to cisplatin, indicating the presence of potentially shared target mechanisms. Interestingly, the correlation of sensitivity to carbon ions and cisplatin was much weaker than that of sensitivity to X-rays and cisplatin, indicating the presence of potentially different target mechanisms between carbon ions and cisplatin. Assessment of clonogenic cell death by 4′,6-diamidino-2-phenylindole dihydrochloride staining showed that mitotic catastrophe was more efficiently induced by carbon ions than by the same physical dose of X-rays, while apoptosis and senescence were not. These data indicate that the correlation of sensitivity to carbon ions and cisplatin is weaker than that of sensitivity to X-rays and cisplatin, which are helpful as biological basis to understand the potentially shared mechanism among these treatments. Further investigation is mandatory to elucidate the clinical efficacy of carbon ions and cisplatin combination.
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Affiliation(s)
- Daijiro Kobayashi
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.,Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma, Japan
| | - Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research, Maebashi, Gunma, Japan
| | - Yoshiki Kubota
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
| | - Makoto Sakai
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
| | - Napapat Amornwhichet
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.,Department of Radiology, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Yuya Yoshimoto
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Yoshihiko Hagiwara
- Advanced Scientific Research Leaders Development Unit, Gunma University, Maebashi, Gunma, Japan
| | - Yuka Kimura
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Yuka Hirota
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Mayu Isono
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
| | - Yukari Yoshida
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
| | - Takashi Kohno
- Division of Genome Biology, National Cancer Center Research Institute, Chuo-ku, Tokyo, Japan
| | - Tatsuya Ohno
- Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
| | - Takashi Nakano
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan.,Gunma University Heavy Ion Medical Center, Maebashi, Gunma, Japan
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25
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Tajiri T, Matsumoto H, Gon Y, Ito R, Hashimoto S, Izuhara K, Suzukawa M, Ohta K, Ono J, Ohta S, Ito I, Oguma T, Inoue H, Iwata T, Kanemitsu Y, Nagasaki T, Niimi A, Mishima M. Utility of serum periostin and free IgE levels in evaluating responsiveness to omalizumab in patients with severe asthma. Allergy 2016; 71:1472-9. [PMID: 27113353 DOI: 10.1111/all.12922] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2016] [Indexed: 01/16/2023]
Abstract
BACKGROUND Omalizumab, a humanized anti-IgE monoclonal antibody, has demonstrated efficacy in patients with severe allergic asthma. However, treatment responses vary widely among individuals. Despite a lack of data, free serum IgE levels following omalizumab treatment have been proposed as a marker of treatment responsiveness. METHODS In this prospective, observational study, we assessed the utility of biomarkers of type 2 inflammation in predicting omalizumab treatment responses, as determined by the absence of asthma exacerbation during the first year of treatment. Free serum IgE levels were monitored for 2 years to examine their association with baseline biomarker levels and the number of exacerbations. RESULTS We enrolled thirty patients who had been treated with omalizumab for at least 1 year, of whom 27 were treated for 2 years. Baseline serum periostin levels and blood eosinophil counts were significantly higher in patients without exacerbations during the first year of treatment than in patients with exacerbations. Baseline serum periostin levels, but not eosinophil counts, were negatively associated with free serum IgE levels after 16 or 32 weeks of treatment. Reduced free serum IgE levels during treatment from those at baseline were associated with reduced exacerbation numbers at 2 years. In 14 patients who continued to have exacerbations during the first year of treatment, exacerbation numbers gradually and significantly decreased over the 2-year study period, with concurrent significant reductions in free serum IgE levels. CONCLUSION Baseline serum periostin levels and serum free IgE levels during treatment follow-up may be useful in evaluating responses to omalizumab treatment.
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Affiliation(s)
- T. Tajiri
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - H. Matsumoto
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - Y. Gon
- Division of Respiratory Medicine Department of Internal Medicine Nihon University School of Medicine Tokyo Japan
| | - R. Ito
- Division of Respiratory Medicine Department of Internal Medicine Nihon University School of Medicine Tokyo Japan
| | - S. Hashimoto
- Division of Respiratory Medicine Department of Internal Medicine Nihon University School of Medicine Tokyo Japan
| | - K. Izuhara
- Division of Medical Biochemistry Department of Biomolecular Sciences Saga Medical School Saga Japan
| | - M. Suzukawa
- Respiratory Center National Hospital Organization Tokyo National Hospital Tokyo Japan
| | - K. Ohta
- Respiratory Center National Hospital Organization Tokyo National Hospital Tokyo Japan
| | - J. Ono
- Shino‐Test Corporation Kanagawa Japan
| | - S. Ohta
- Department of Laboratory Medicine Saga Medical School Saga Japan
| | - I. Ito
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - T. Oguma
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - H. Inoue
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - T. Iwata
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - Y. Kanemitsu
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - T. Nagasaki
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
| | - A. Niimi
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
- Division of Respiratory Medicine Department of Medical Oncology and Immunology Nagoya City University School of Medical Sciences Aichi Japan
| | - M. Mishima
- Department of Respiratory Medicine Graduate School of Medicine Kyoto University Kyoto Japan
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26
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Izuhara Y, Matsumoto H, Nagasaki T, Kanemitsu Y, Murase K, Ito I, Oguma T, Muro S, Asai K, Tabara Y, Takahashi K, Bessho K, Sekine A, Kosugi S, Yamada R, Nakayama T, Matsuda F, Niimi A, Chin K, Mishima M. Mouth breathing, another risk factor for asthma: the Nagahama Study. Allergy 2016; 71:1031-6. [PMID: 26991116 DOI: 10.1111/all.12885] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Allergic rhinitis, a known risk factor for asthma onset, often accompanies mouth breathing. Mouth breathing may bypass the protective function of the nose and is anecdotally considered to increase asthma morbidity. However, there is no epidemiological evidence that mouth breathing is independently associated with asthma morbidity and sensitization to allergens. In this study, we aimed to clarify the association between mouth breathing and asthma morbidity and allergic/eosinophilic inflammation, while considering the effect of allergic rhinitis. METHODS This community-based cohort study, the Nagahama Study, contained a self-reporting questionnaire on mouth breathing and medical history, blood tests, and pulmonary function testing. We enrolled 9804 general citizens of Nagahama City in the Shiga Prefecture, Japan. RESULTS Mouth breathing was reported by 17% of the population and was independently associated with asthma morbidity. The odds ratio for asthma morbidity was 1.85 (95% CI, 1.27-2.62) and 2.20 (95% CI, 1.72-2.80) in subjects with mouth breathing alone and allergic rhinitis alone, which additively increased to 4.09 (95% CI, 3.01-5.52) when mouth breathing and allergic rhinitis coexisted. Mouth breathing in nonasthmatics was a risk for house dust mite sensitization, higher blood eosinophil counts, and lower pulmonary function after adjusting for allergic rhinitis. CONCLUSION Mouth breathing may increase asthma morbidity, potentially through increased sensitization to inhaled allergens, which highlights the risk of mouth-bypass breathing in the 'one airway, one disease' concept. The risk of mouth breathing should be well recognized in subjects with allergic rhinitis and in the general population.
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Affiliation(s)
- Y. Izuhara
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - H. Matsumoto
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - T. Nagasaki
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Y. Kanemitsu
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - K. Murase
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - I. Ito
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - T. Oguma
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - S. Muro
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - K. Asai
- Department of Oral and Maxillofacial Surgery; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - Y. Tabara
- Center for Genomic Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - K. Takahashi
- Department of Oral and Maxillofacial Surgery; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - K. Bessho
- Department of Oral and Maxillofacial Surgery; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - A. Sekine
- Pharmacogenomics Project; Kyoto University Graduate School of Medicine; Kyoto Japan
- Center for Preventive Medical Science; Chiba University; Chiba Japan
| | - S. Kosugi
- Department of Medical Ethics and Medical Genetics; Kyoto University School of Public Health; Kyoto Japan
| | - R. Yamada
- Center for Genomic Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - T. Nakayama
- Department of Health Informatics; Kyoto University School of Public Health; Kyoto Japan
| | - F. Matsuda
- Center for Genomic Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - A. Niimi
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
- Department of Respiratory Medicine Allergy and Clinical Immunology; Nagoya City University School of Medical Sciences; Aichi Japan
| | - K. Chin
- Department of Respiratory Care and Sleep Control Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
| | - M. Mishima
- Department of Respiratory Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
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27
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Niimi A, Yamauchi M, Limsirichaikul S, Sekine R, Oike T, Sato H, Suzuki K, Held KD, Nakano T, Shibata A. Identification of DNA double strand breaks at chromosome boundaries along the track of particle irradiation. Genes Chromosomes Cancer 2016; 55:650-60. [PMID: 27113385 DOI: 10.1002/gcc.22367] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 04/19/2016] [Accepted: 04/19/2016] [Indexed: 02/02/2023] Open
Abstract
Chromosomal translocations arise from misrejoining of DNA double strand breaks (DSBs) between loci located on two chromosomes. One current model suggests that spatial proximity of potential chromosomal translocation partners influences translocation probability. Ionizing radiation (IR) is a potent inducer of translocations. Accumulating evidence demonstrates that particle irradiation more frequently causes translocations compared with X-ray irradiation. This observation has led to the hypothesis that the high frequency of translocations after particle irradiation may be due to the formation of DSBs at chromosome boundaries along the particle track, because such DSBs can be misrejoined between distinct chromosomes. In this study, we simultaneously visualized the site of IR-induced DSBs and chromosome position by combining Immunofluorescence and fluorescence in situ hybridization. Importantly, the frequency of γH2AX foci at the chromosome boundary of chromosome 1 after carbon-ion irradiation was >4-fold higher than that after X-ray irradiation. This observation is consistent with the idea that particle irradiation generates DSBs at the boundaries of two chromosomes along the track. Further, we showed that resolution of γH2AX foci at chromosome boundaries is prevented by inhibition of DNA-PKcs activity, indicating that the DSB repair is NHEJ-dependent. Finally, we found that γH2AX foci at chromosome boundaries after carbon-ion irradiation contain DSBs undergoing DNA-end resection, which promotes repair utilizing microhomology mediated end-joining during translocation. Taken together, our study suggests that the frequency of DSB formation at chromosome boundaries is associated with the incidence of chromosomal translocations, supporting the notion that the spatial proximity between breaks is an important factor in translocation formation. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Atsuko Niimi
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Gunma, Japan
| | - Motohiro Yamauchi
- Division of Radiation Biology and Protection, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | | | - Ryota Sekine
- Advanced Scientific Research Leaders Development Unit, Gunma University, Gunma, Japan
| | - Takahiro Oike
- Department of Radiation Oncology, Gunma University, Gunma, Japan
| | - Hiro Sato
- Department of Radiation Oncology, Gunma University, Gunma, Japan
| | - Keiji Suzuki
- Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, Japan
| | - Kathryn D Held
- Department of Radiation Oncology, Massachusetts General Hospital/Harvard Medical School, Boston, MA.,International Open Laboratory, Gunma University Initiative for Advanced Research (GIAR), Gunma, Japan
| | - Takashi Nakano
- Research Program for Heavy Ion Therapy, Division of Integrated Oncology Research, Gunma University Initiative for Advanced Research (GIAR), Gunma, Japan.,Department of Radiation Oncology, Gunma University, Gunma, Japan
| | - Atsushi Shibata
- Advanced Scientific Research Leaders Development Unit, Gunma University, Gunma, Japan
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28
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Oguri T, Kunii E, Fukuda S, Uemura T, Takakuwa O, Maeno K, Kanemitsu Y, Ohkubo H, Takemura M, Ito Y, Niimi A. 8P Organic cation transporter 6 directly confers resistance to anticancer platinum drugs. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv517.08] [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: 11/13/2022] Open
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29
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Niimi A, Hopkins SR, Downs JA, Masutani C. The BAH domain of BAF180 is required for PCNA ubiquitination. Mutat Res 2015; 779:16-23. [PMID: 26117423 DOI: 10.1016/j.mrfmmm.2015.06.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 06/03/2015] [Accepted: 06/14/2015] [Indexed: 06/04/2023]
Abstract
Monoubiquitination of proliferating cell nuclear antigen (PCNA) is a critical regulator of post replication repair (PRR). The depletion of BAF180, a unique subunit of the PBAF chromatin remodeling complex in human cells results in reduced PCNA ubiquitination leading to less efficient fork progression following DNA damage, but little is known about the mechanism. Here, we report that the expression of exogenous BAF180 in cells promotes PCNA ubiquitination during S-phase after UV irradiation and it persists for many hours. No correlation was observed between the protein level of ubiquitin-specific protease 1 (USP1) and ubiquitinated PCNA in BAF180 expressing cells. Analysis of cells expressing BAF180 deletion mutants showed that the bromo-adjacent homology (BAH) domains are responsible for this effect. Surprisingly, a deletion construct encoding only the BAH domain region is able to increase the level of ubiquitinated PCNA, even though it is unable to be assembled into the PBAF complex. These results suggest that the ATPase-dependent chromatin remodeling activity of PBAF is not necessary, but instead the BAH domains are sufficient to promote PCNA ubiquitination.
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Affiliation(s)
- Atsuko Niimi
- Department of Genome Dynamics, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Suzanna R Hopkins
- Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton BN1 9RQ, UK
| | - Jessica A Downs
- Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton BN1 9RQ, UK
| | - Chikahide Masutani
- Department of Genome Dynamics, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan.
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30
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Ohkubo H, Miyazaki M, Oguri T, Arakawa A, Kobashi Y, Niimi A. A rare case of IgG4-related disease involving the uterus. Rheumatology (Oxford) 2015; 54:1124-5. [DOI: 10.1093/rheumatology/kev024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2015] [Indexed: 12/24/2022] Open
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31
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Izuhara Y, Matsumoto H, Kanemitsu Y, Izuhara K, Tohda Y, Horiguchi T, Kita H, Kuwabara K, Tomii K, Otsuka K, Fujimura M, Ohkura N, Tomita K, Yokoyama A, Ohnishi H, Nakano Y, Oguma T, Hozawa S, Nagasaki T, Ito I, Oguma T, Inoue H, Tajiri T, Iwata T, Ono J, Ohta S, Tamari M, Hirota T, Yokoyama T, Niimi A, Mishima M. GLCCI1 variant accelerates pulmonary function decline in patients with asthma receiving inhaled corticosteroids. Allergy 2014; 69:668-73. [PMID: 24673601 DOI: 10.1111/all.12400] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND In steroid-naive patients with asthma, several gene variants are associated with a short-term response to inhaled corticosteroid (ICS) treatment; this has mostly been observed in Caucasians. However, not many studies have been conducted for other ethnicities. Here, we aimed to determine the relationship between the annual decline in forced expiratory flow volume in one second (FEV1 ) and the variant of the glucocorticoid-induced transcript 1 gene (GLCCI1) in Japanese patients with asthma receiving long-term ICS treatment, taking into account the effect of high serum periostin levels, a known association factor of pulmonary function decline and a marker of refractory eosinophilic/Th2 inflammation. METHODS In this study, 224 patients with asthma receiving ICS treatment for at least 4 years were enrolled. The effects of single-nucleotide polymorphisms (SNPs) in GLCCI1, stress-induced phosphoprotein 1 (STIP1), and T gene on the decline in FEV1 of 30 ml/year or greater were determined. RESULTS Besides the known contributing factors, that is, the most intensive treatment step, ex-smoking, and high serum periostin levels (≥95 ng/ml), the GG genotype of GLCCI1 rs37973, and not other SNPs, was independently associated with a decline in FEV1 of 30 ml/year or greater. When patients were stratified according to their serum periostin levels, the GG genotype of rs37973 was significantly associated with blood eosinophilia (≥250/μl) in the high serum periostin group. CONCLUSIONS A GLCCI1 variant is a risk factor of pulmonary function decline in Japanese patients with asthma receiving long-term ICS treatment. Thus, GLCCI1 may be associated with response to ICS across ethnicities.
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32
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Nagasaki T, Matsumoto H, Nakaji H, Niimi A, Ito I, Oguma T, Muro S, Inoue H, Iwata T, Tajiri T, Kanemitsu Y, Mishima M. Smoking attenuates the age-related decrease in IgE levels and maintains eosinophilic inflammation. Clin Exp Allergy 2014; 43:608-15. [PMID: 23711122 DOI: 10.1111/cea.12073] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 11/08/2012] [Accepted: 11/27/2012] [Indexed: 11/29/2022]
Abstract
BACKGROUND Epidemiological studies have shown that smoking increases the propensity for atopy and asthma. However, the effects of smoking on atopy and eosinophilic inflammation in asthmatics, including the elderly, remain unknown. OBJECTIVE To determine the effects of smoking on serum immunoglobulin E (IgE) levels and eosinophilic inflammation in asthmatics of all ages. METHODS The associations of serum IgE levels, blood eosinophil counts and fractional exhaled nitric oxide (FeNO) levels with smoking and age in steroid-naive asthmatics were cross-sectionally assessed (n = 307). Levels of sputum eosinophil and thymic stromal lymphopoietin (TSLP) that promotes Th2 inflammation were also analysed. Current smokers were excluded when analysing contributing factors of FeNO. RESULTS Levels of serum IgE, blood eosinophil and FeNO decreased with increasing age in never-smokers, whereas decrease in serum IgE levels with increasing age was not observed in current smokers. In addition, current smoking was associated with higher blood eosinophil counts. In atopic asthmatics, age-related declines in serum IgE levels were less steep in ex-smokers than in never-smokers, and atopic ex-smokers with asthma showed higher blood eosinophil counts and higher FeNO irrespective of age. Lastly, sputum TSLP levels were associated with sputum eosinophil proportions and pack-years. Current and ex-smokers had higher TSLP levels than never-smokers. CONCLUSIONS AND CLINICAL RELEVANCE In steroid-naive asthmatics, smoking may attenuate the age-related decrease in IgE levels and maintain eosinophilic inflammation, in which TSLP may be involved.
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Affiliation(s)
- T Nagasaki
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
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33
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Ryo M, Oshikoshi Y, Doi S, Motoki S, Niimi A, Aoki S. Firefly luciferase as the reporter for transcriptional response to the environment in Escherichia coli. Anal Biochem 2013; 443:211-3. [PMID: 24012794 DOI: 10.1016/j.ab.2013.08.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 07/29/2013] [Revised: 08/23/2013] [Accepted: 08/26/2013] [Indexed: 10/26/2022]
Abstract
We demonstrate that firefly luciferase is a good reporter in Escherichia coli for transcription dynamics in response to the environment. E. coli strains, carrying a fusion of the promoter of the ycgZ gene and the coding region of the luciferase gene, showed transient bioluminescence on receiving blue light. This response was compromised in mutants lacking known regulators in manners consistent with each regulator's function. We also show that relA, a gene encoding a (p)ppGpp synthetase, affects ycgZ dynamics when nullified. Moreover, two unstable luciferase variants showed improved response dynamics and should be useful to study quick changes of gene expression.
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Affiliation(s)
- Masashi Ryo
- Graduate School of Information Science, Nagoya University, Chikusa-ku, Nagoya 464-8601, Japan
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Taguchi S, Nakagawa T, Hattori M, Niimi A, Nagata M, Kawai T, Fukuhara H, Nishimatsu H, Ishikawa A, Kume H, Homma Y. Prognostic Factors for Metastatic Urothelial Carcinoma Undergoing Cisplatin-based Salvage Chemotherapy. Jpn J Clin Oncol 2013; 43:923-8. [DOI: 10.1093/jjco/hyt096] [Citation(s) in RCA: 22] [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] [Indexed: 11/14/2022] Open
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35
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Fujita K, Ito Y, Hirai T, Maekawa K, Imai S, Tatsumi S, Niimi A, Iinuma Y, Ichiyama S, Mishima M. Genetic relatedness of Mycobacterium avium-intracellulare complex isolates from patients with pulmonary MAC disease and their residential soils. Clin Microbiol Infect 2013; 19:537-41. [DOI: 10.1111/j.1469-0691.2012.03929.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [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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36
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Maekawa K, Ito Y, Oga T, Hirai T, Kubo T, Fujita K, Imai S, Niimi A, Chin K, Ichiyama S, Togashi K, Mishima M. High-resolution computed tomography and health-related quality of life in Mycobacterium avium complex disease. Int J Tuberc Lung Dis 2013; 17:829-35. [DOI: 10.5588/ijtld.12.0672] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- K. Maekawa
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - Y. Ito
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - T. Oga
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University, Kyoto, Japan
| | - T. Hirai
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - T. Kubo
- Department of Nuclear Medicine and Diagnostic Imaging, Kyoto University, Kyoto, Japan
| | - K. Fujita
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - S. Imai
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
| | - A. Niimi
- Department of Medical Oncology and Immunology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - K. Chin
- Department of Respiratory Care and Sleep Control Medicine, Kyoto University, Kyoto, Japan
| | - S. Ichiyama
- Department of Clinical Laboratory Medicine, Kyoto University, Kyoto, Japan
| | - K. Togashi
- Department of Nuclear Medicine and Diagnostic Imaging, Kyoto University, Kyoto, Japan
| | - M. Mishima
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan
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Abstract
In eukaryotic cells, replication past damaged sites in DNA is regulated by the ubiquitination of proliferating cell nuclear antigen (PCNA). Little is known about how this process is affected by chromatin structure. There are two isoforms of the Remodels the Structure of Chromatin (RSC) remodelling complex in yeast. We show that deletion of RSC2 results in a dramatic reduction in the level of PCNA ubiquitination after DNA-damaging treatments, whereas no such effect was observed after deletion of RSC1. Similarly, depletion of the BAF180 component of the corresponding PBAF (Polybromo BRG1 (Brahma-Related Gene 1) Associated Factor) complex in human cells led to a similar reduction in PCNA ubiquitination. Remarkably, we found that depletion of BAF180 resulted after UV-irradiation, in a reduction not only of ubiquitinated PCNA but also of chromatin-associated unmodified PCNA and Rad18 (the E3 ligase that ubiquitinates PCNA). This was accompanied by a modest decrease in fork progression. We propose a model to account for these findings that postulates an involvement of PBAF in repriming of replication downstream from replication forks blocked at sites of DNA damage. In support of this model, chromatin immunoprecipitation data show that the RSC complex in yeast is present in the vicinity of the replication forks, and by extrapolation, this is also likely to be the case for the PBAF complex in human cells.
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Affiliation(s)
- Atsuko Niimi
- Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton BN1 9RQ, UK
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38
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Ito Y, Hirai T, Maekawa K, Fujita K, Imai S, Tatsumi S, Handa T, Matsumoto H, Muro S, Niimi A, Mishima M. Predictors of 5-year mortality in pulmonary Mycobacterium avium-intracellulare complex disease. Int J Tuberc Lung Dis 2012; 16:408-14. [PMID: 22230733 DOI: 10.5588/ijtld.11.0148] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [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
SETTING Kyoto, Japan. OBJECTIVE To determine predictors of 5-year mortality in pulmonary Mycobacterium avium-intracellulare complex (MAC) disease. DESIGN Retrospective study of 164 patients diagnosed with pulmonary MAC disease between 1999 and 2005 and followed for 5 years. RESULTS Overall 5-year mortality was 28.0%. Among 117 patients with microbiological outcomes, 54 were treated (treated MAC patients) and 24 were not treated and did not experience sputum culture conversion during follow-up (untreated chronic MAC patients); 39 patients were not treated and experienced sputum culture conversion. Five-year all-cause overall mortality among the 78 patients with definite MAC disease (including treated and untreated chronic MAC patients) was 25.6%. The mortality rate was 33.3% for untreated chronic MAC patients only vs. 22.2% for treated MAC patients (P = 0.30). After adjustment for clinical, microbiological and radiological confounders, independent factors for 5-year mortality were a high Charlson comorbidity index in cases with definite MAC disease (hazard ratio [HR] 1.76) and untreated chronic MAC (HR 3.08), and presence of cavitary lesions in cases with definite MAC disease (HR 1.82) and treated MAC patients (HR 3.91). CONCLUSION Patients with cavitary lesions require immediate treatment for sputum culture conversion and to improve their chances of survival.
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Affiliation(s)
- Y Ito
- Department of Respiratory Medicine, Kyoto University, Kyoto, Japan.
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39
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Imai S, Ito Y, Ishida T, Hirai T, Ito I, Yoshimura K, Maekawa K, Takakura S, Niimi A, Iinuma Y, Ichiyama S, Mishima M. Distribution and clonal relationship of cell surface virulence genes among Streptococcus pneumoniae isolates in Japan. Clin Microbiol Infect 2011; 17:1409-14. [DOI: 10.1111/j.1469-0691.2010.03446.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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40
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Murase K, Tomii K, Chin K, Niimi A, Ishihara K, Mishima M. Non-invasive ventilation in severe asthma attack, its possibilities and problems. Panminerva Med 2011; 53:87-96. [PMID: 21659974] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Asthma attack is characterized by episodic attacks of cough, dyspnea and wheeze occurring due to bronchoconstriction, airway hyperresponsiveness and mucous hypersecretion. Although nationwide clinical guidelines have been published to establish the standard care of asthma, choices in the treatment of fatal asthma attacks remain of clinical significance. Especially, in a severe asthma attack, despite the application of conventional medical treatment, respiratory management is critical. Even though non-invasive ventilation (NIV) has been shown to be effective in a wide variety of clinical settings, reports of NIV in asthmatic patients are scarce. According to a few prospective clinical trials reporting promising results in favour of the use of NIV in a severe asthma attack, a trial of NIV prior to invasive mechanical ventilation seems acceptable and may benefit patients by decreasing the need for intubation and by supporting pharmaceutical treatments. Although selecting the appropriate patients for NIV use is a key factor in successful NIV application, how to distinguish such patients is quite controversial. Larger high quality clinical trails are urgently required to confirm the benefits of NIV to patients with severe asthma attack. In this article, we focus on the body of evidence supporting the use of NIV in asthma attacks and discuss its advantages as well its problems.
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Affiliation(s)
- K Murase
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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41
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Matsumoto H, Niimi A, Takemura M, Ueda T, Yamaguchi M, Matsuoka H, Jinnai M, Takeda T, Otsuka K, Oguma T, Handa T, Hirai T, Chin K, Mishima M. Long-term changes in airway-wall thickness on computed tomography in asthmatic patients. J Investig Allergol Clin Immunol 2011; 21:113-119. [PMID: 21462801] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Effects of long-term treatment with inhaled corticosteroids (ICSs) on airway-wall thickness in patients with asthma remain unknown. OBJECTIVES To determine whether airway-wall thickness consistently decreases after long-term ICS treatment, and to analyze factors contributing to long-term airway-wall changes in asthmatics. METHODS A retrospective analysis of long-term changes in airway-wall thickness using computed tomography was performed in 14 patients with asthma. Wall area corrected by body surface area (WA/BSA) was examined at baseline, 12 weeks after the commencement of ICSs (second measurement), and at least 2 years (mean +/- SEM. 4.2 +/- 0.5) after the second measurement (third measurement). Mean +/- SEM changes in WA/BSA from the second to the third measurements were analyzed. RESULTS The mean change in WA/BSA was not significant between the second and the third measurements (-0.27 +/- 0.59 mm2/m2/y). Overall, the changes were significantly associated with disease duration but not with other clinical indices. When the 14 patients were divided into 2 groups using a cutoff value of 0.32 mm2/m2/y for the mean change in WA/BSA, for the 5 patients whose WA/BSA exceeded this cutoff, daily ICS doses were not reduced and both forced expiratory volume in the first second (FEV1) and forced vital capacity decreased significantly. For the remaining 9 patients, daily ICS doses were reduced and long-term FEV1 values did not change. CONCLUSIONS Despite long-term treatment with ICSs, airway-wall thickness did not consistently decrease. One possible mechanism underlying poor response to long-term treatment may be long-standing asthma.
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Affiliation(s)
- H Matsumoto
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
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42
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Suzuki M, Niimi A, Limsirichaikul S, Tomida S, Huang QM, Izuta S, Usukura J, Itoh Y, Hishida T, Akashi T, Nakagawa Y, Kikuchi A, Pavlov Y, Murate T, Takahashi T. PCNA Mono-Ubiquitination and Activation of Translesion DNA Polymerases by DNA Polymerase. J Biochem 2010. [DOI: 10.1093/jb/mvq059] [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: 11/13/2022] Open
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43
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Ogi T, Limsirichaikul S, Overmeer RM, Volker M, Takenaka K, Cloney R, Nakazawa Y, Niimi A, Miki Y, Jaspers NG, Mullenders LHF, Yamashita S, Fousteri MI, Lehmann AR. Three DNA polymerases, recruited by different mechanisms, carry out NER repair synthesis in human cells. Mol Cell 2010; 37:714-27. [PMID: 20227374 DOI: 10.1016/j.molcel.2010.02.009] [Citation(s) in RCA: 269] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2009] [Revised: 09/25/2009] [Accepted: 12/21/2009] [Indexed: 10/19/2022]
Abstract
Nucleotide excision repair (NER) is the most versatile DNA repair system that deals with the major UV photoproducts in DNA, as well as many other DNA adducts. The early steps of NER are well understood, whereas the later steps of repair synthesis and ligation are not. In particular, which polymerases are definitely involved in repair synthesis and how they are recruited to the damaged sites has not yet been established. We report that, in human fibroblasts, approximately half of the repair synthesis requires both pol kappa and pol delta, and both polymerases can be recovered in the same repair complexes. Pol kappa is recruited to repair sites by ubiquitinated PCNA and XRCC1 and pol delta by the classical replication factor complex RFC1-RFC, together with a polymerase accessory factor, p66, and unmodified PCNA. The remaining repair synthesis is dependent on pol epsilon, recruitment of which is dependent on the alternative clamp loader CTF18-RFC.
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Affiliation(s)
- Tomoo Ogi
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Graduate School of Biomedical Sciences, Nagasaki University, 1-12-4, Sakamoto, Nagasaki 852-8523, Japan.
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44
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Bienko M, Green CM, Sabbioneda S, Crosetto N, Matic I, Hibbert RG, Begovic T, Niimi A, Mann M, Lehmann AR, Dikic I. Regulation of translesion synthesis DNA polymerase eta by monoubiquitination. Mol Cell 2010; 37:396-407. [PMID: 20159558 DOI: 10.1016/j.molcel.2009.12.039] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 09/03/2009] [Accepted: 12/08/2009] [Indexed: 01/12/2023]
Abstract
DNA polymerase eta is a Y family polymerase involved in translesion synthesis (TLS). Its action is initiated by simultaneous interaction between the PIP box in pol eta and PCNA and between the UBZ in pol eta and monoubiquitin attached to PCNA. Whereas monoubiquitination of PCNA is required for its interaction with pol eta during TLS, we now show that monoubiquitination of pol eta inhibits this interaction, preventing its functions in undamaged cells. Identification of monoubiquitination sites within pol eta nuclear localization signal (NLS) led to the discovery that pol eta NLS directly contacts PCNA, forming an extended pol eta-PCNA interaction surface. We name this the PCNA-interacting region (PIR) and show that its monoubiquitination is downregulated by various DNA-damaging agents. We propose that this mechanism ensures optimal availability of nonubiquitinated, TLS-competent pol eta after DNA damage. Our work shows how monoubiquitination can either positively or negatively regulate the assembly of a protein complex, depending on which substrates are targeted by ubiquitin.
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Affiliation(s)
- Marzena Bienko
- Institute of Biochemistry II, Goethe University Medical School, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
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Abstract
Following exposure of human cells to DNA damaging agents that block the progress of the replication fork, mono-ubiquitination of PCNA mediates the switch from replicative DNA polymerases to polymerases specialised for translesion synthesis. We have shown that this modification of PCNA is necessary for the survival of cells after UV-irradiation and methyl methanesulfonate, that it is independent of cell cycle checkpoint activation, and that it persists after UV damage has been removed. In this Extra-view, we compare the regulation and biological significance of PCNA ubiquitination following treatments with UV light and the replication inhibitor hydroxyurea. We show that ubiquitination persists after removal of the replication block in both cases. With UV however, the persistence of ubiquitinated PCNA correlates with disappearance of the PCNA deubiquitinating enzyme USP1, whereas this is not the case for HU. Prevention of PCNA ubiquitination sensitises the cells to killing by both UV and HU.
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Affiliation(s)
- Stephanie Brown
- Genome Damage and Stability Centre, University of Sussex, Falmer, Brighton, UK
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46
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Suzuki M, Niimi A, Limsirichaikul S, Tomida S, Miao Huang Q, Izuta S, Usukura J, Itoh Y, Hishida T, Akashi T, Nakagawa Y, Kikuchi A, Pavlov Y, Murate T, Takahashi T. PCNA mono-ubiquitination and activation of translesion DNA polymerases by DNA polymerase {alpha}. J Biochem 2009; 146:13-21. [PMID: 19279190 DOI: 10.1093/jb/mvp043] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Translesion DNA synthesis (TLS) involves PCNA mono-ubiquitination and TLS DNA polymerases (pols). Recent evidence has shown that the mono-ubiquitination is induced not only by DNA damage but also by other factors that induce stalling of the DNA replication fork. We studied the effect of spontaneous DNA replication errors on PCNA mono-ubiquitination and TLS induction. In the pol1L868F strain, which expressed an error-prone pol alpha, PCNA was spontaneously mono-ubiquitinated. Pol alpha L868F had a rate-limiting step at the extension from mismatched primer termini. Electron microscopic observation showed the accumulation of a single-stranded region at the DNA replication fork in yeast cells. For pol alpha errors, pol zeta participated in a generation of +1 frameshifts. Furthermore, in the pol1L868F strain, UV-induced mutations were lower than in the wild-type and a pol delta mutant strain (pol3-5DV), and deletion of the RAD30 gene (pol eta) suppressed this defect. These data suggest that nucleotide misincorporation by pol alpha induces exposure of single-stranded DNA, PCNA mono-ubiquitination and activates TLS pols.
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Affiliation(s)
- Motoshi Suzuki
- Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Japan.
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Limsirichaikul S, Niimi A, Fawcett H, Lehmann A, Yamashita S, Ogi T. A rapid non-radioactive technique for measurement of repair synthesis in primary human fibroblasts by incorporation of ethynyl deoxyuridine (EdU). Nucleic Acids Res 2009; 37:e31. [PMID: 19179371 PMCID: PMC2651789 DOI: 10.1093/nar/gkp023] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Xeroderma pigmentosum (XP) is an autosomal recessive genetic disorder. Afflicted patients show extreme sun-sensitivity and skin cancer predisposition. XP is in most cases associated with deficient nucleotide excision repair (NER), which is the process responsible for removing photolesions from DNA. Measuring NER activity by nucleotide incorporation into repair patches, termed 'unscheduled DNA synthesis (UDS)', is one of the most commonly used assays for XP-diagnosis and NER research. We have established a rapid and accurate procedure for measuring UDS by replacement of thymidine with 5-ethynyl-2'-deoxyuridine (EdU). EdU incorporated into repair patches can be directly conjugated to fluorescent azide derivatives, thereby obviating the need for either radiolabeled thymidine or denaturation and antibody detection of incorporated bromodeoxyuridine (BrdU). We demonstrate that the EdU incorporation assay is compatible with conventional techniques such as immunofluorescent staining and labeling of cells with micro-latex beads. Importantly, we can complete the entire UDS assay within half a day from preparation of the assay coverslips; this technique may prove useful as a method for XP diagnosis.
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Affiliation(s)
- Siripan Limsirichaikul
- Department of Molecular Medicine, Atomic Bomb Disease Institute, Nagasaki University, Nagasaki, 852-8523 Japan
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Terada K, Muro S, Sato S, Ohara T, Haruna A, Marumo S, Kinose D, Ogawa E, Hoshino Y, Niimi A, Terada T, Mishima M. Impact of gastro-oesophageal reflux disease symptoms on COPD exacerbation. Thorax 2008; 63:951-5. [DOI: 10.1136/thx.2007.092858] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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49
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Ogawa E, Nakano Y, Ohara T, Muro S, Hirai T, Sato S, Sakai H, Tsukino M, Kinose D, Nishioka M, Niimi A, Chin K, Paré PD, Mishima M. Body mass index in male patients with COPD: correlation with low attenuation areas on CT. Thorax 2008; 64:20-5. [PMID: 18852156 DOI: 10.1136/thx.2008.097543] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is characterised by the presence of airflow limitation caused by loss of lung elasticity and/or airway narrowing. The pathological hallmark of loss of lung elasticity is emphysema, and airway wall remodelling contributes to the airway narrowing. Using CT, these lesions can be assessed by measuring low attenuation areas (LAA) and airway wall thickness/luminal area, respectively. As previously reported, COPD can be divided into airway dominant, emphysema dominant and mixed phenotypes using CT. In this study, it is postulated that a patient's physique may be associated with the relative contribution of these lesions to airflow obstruction. METHODS CT was used to evaluate emphysema and airway dimensions in 201 patients with COPD. Emphysema was evaluated using percentage of LAA voxels (LAA%) and airway lesion was estimated by percentage wall area (WA%). Patients were divided into four phenotypes using LAA% and WA%. RESULTS Body mass index (BMI) was significantly lower in the higher LAA% phenotype (ie, emphysema dominant and mixed phenotypes). BMI correlated with LAA% (rho = -0.557, p<0.0001) but not with WA%. BMI was significantly lower in the emphysema dominant phenotype than in the airway dominant phenotype, while there was no difference in forced expiratory volume in 1 s %predicted between the two. CONCLUSION A low BMI is associated with the presence of emphysema, but not with airway wall thickening, in male smokers who have COPD. These results support the concept of different COPD phenotypes and suggest that there may be different systemic manifestations of these phenotypes.
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Affiliation(s)
- E Ogawa
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University Hospital, Sakyo-ku, Kyoto, Japan.
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Kume H, Nishimura S, Teramoto S, Niimi A, Tomita K, Kitamura T. An [123I]MIBG-positive malignant lymphoma involving the adrenal gland with hypercatecholaminaemia. Clin Radiol 2008; 63:475-7. [DOI: 10.1016/j.crad.2007.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Revised: 08/22/2007] [Accepted: 08/24/2007] [Indexed: 10/22/2022]
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