1
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Naoi Y, Morinaga T, Nagasaki J, Ariyasu R, Ueda Y, Yamashita K, Zhou W, Kawashima S, Kawase K, Honobe-Tabuchi A, Ohnuma T, Kawamura T, Umeda Y, Kawahara Y, Nakamura Y, Kiniwa Y, Yamasaki O, Fukushima S, Kawazu M, Suzuki Y, Nishikawa H, Hanazawa T, Ando M, Inozume T, Togashi Y. CD106 in tumor-specific exhausted CD8+ T cells mediates immunosuppression by inhibiting TCR signaling. Cancer Res 2024:743098. [PMID: 38635899 DOI: 10.1158/0008-5472.can-23-0453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 11/07/2023] [Accepted: 04/03/2024] [Indexed: 04/20/2024]
Abstract
T cell exhaustion is a major contributor to immunosuppression in the tumor microenvironment (TME). Blockade of key regulators of T cell exhaustion, such as PD-1, can reinvigorate tumor-specific T cells and activate anti-tumor immunity in various types of cancer. Here, we identified that CD106 was specifically expressed in exhausted CD8+ T cells in the TME using single-cell RNA-sequencing. High CD106 expression in the TME in clinical samples corresponded to improved response to cancer immunotherapy. CD106 in tumor-specific T cells suppressed anti-tumor immunity both in vitro and in vivo, and loss of CD106 in CD8+ T cells suppressed tumor growth and improved response to PD-1 blockade. Mechanistically, CD106 inhibited T-cell receptor (TCR) signaling by interacting with the TCR/CD3 complex and reducing its surface expression. Together, these findings provide insights into the immunosuppressive role of CD106 expressed in tumor-specific exhausted CD8+ T cells, identifying it as a potential biomarker and therapeutic target for cancer immunotherapy.
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Affiliation(s)
| | | | | | - Ryo Ariyasu
- Japanese Foundation For Cancer Research, Tokyo, Japan
| | - Youki Ueda
- Okayama University, Okayama, Okayama, Japan
| | | | | | | | | | | | | | | | | | | | | | - Yukiko Kiniwa
- Shinshu University School of Medicine, Matsumoto, Japan
| | - Osamu Yamasaki
- Shimane University Hospital, Izumo city, Shimane Pref., Japan
| | | | | | | | | | | | - Mizuo Ando
- Okayama University, Okayama, Okayama, Japan
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2
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Okumura K, Morinaga T, Saito M, Tokunaga Y, Otoyama K, Tanaka S, Isogai E, Kawazu M, Togashi Y, Araki K, Wakabayashi Y. Deletion of Pak1 in CD11c-Positive Cells Confers Resistance to Mouse Skin Carcinogenesis. J Invest Dermatol 2024:S0022-202X(24)00098-8. [PMID: 38325578 DOI: 10.1016/j.jid.2024.01.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 01/11/2024] [Accepted: 01/22/2024] [Indexed: 02/09/2024]
Affiliation(s)
- Kazuhiro Okumura
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Takao Morinaga
- Division of Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Megumi Saito
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Yurika Tokunaga
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Keisuke Otoyama
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Sora Tanaka
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Eriko Isogai
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Masahito Kawazu
- Division of Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Yosuke Togashi
- Division of Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan; Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Kimi Araki
- Division of Developmental Genetics, Institute of Resource Development and Analysis, Kumamoto University, Chuouku, Japan
| | - Yuichi Wakabayashi
- Division of Experimental Animal Research, Cancer Genome Center, Chiba Cancer Center Research Institute, Chiba, Japan.
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3
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Morinaga T, Inozume T, Kawazu M, Ueda Y, Sax N, Yamashita K, Kawashima S, Nagasaki J, Ueno T, Lin J, Ohara Y, Kuwata T, Yukami H, Kawazoe A, Shitara K, Honobe-Tabuchi A, Ohnuma T, Kawamura T, Umeda Y, Kawahara Y, Nakamura Y, Kiniwa Y, Morita A, Ichihara E, Kiura K, Enokida T, Tahara M, Hasegawa Y, Mano H, Suzuki Y, Nishikawa H, Togashi Y. Mixed Response to Cancer Immunotherapy is Driven by Intratumor Heterogeneity and Differential Interlesion Immune Infiltration. Cancer Res Commun 2022; 2:739-753. [PMID: 36923281 PMCID: PMC10010332 DOI: 10.1158/2767-9764.crc-22-0050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/26/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022]
Abstract
Some patients experience mixed response to immunotherapy, whose biological mechanisms and clinical impact have been obscure. We obtained two tumor samples from lymph node (LN) metastatic lesions in a same patient. Whole exome sequencing for the both tumors and single-cell sequencing for the both tumor-infiltrating lymphocytes (TIL) demonstrated a significant difference in tumor clonality and TILs' characteristics, especially exhausted T-cell clonotypes, although a close relationship between the tumor cell and T-cell clones were observed as a response of an overlapped exhausted T-cell clone to an overlapped neoantigen. To mimic the clinical setting, we generated a mouse model of several clones from a same tumor cell line. Similarly, differential tumor clones harbored distinct TILs, and one responded to programmed cell death protein 1 (PD-1) blockade but the other did not in this model. We further conducted cohort study (n = 503) treated with PD-1 blockade monotherapies to investigate the outcome of mixed response. Patients with mixed responses to PD-1 blockade had a poor prognosis in our cohort. Particularly, there were significant differences in both tumor and T-cell clones between the primary and LN lesions in a patient who experienced tumor response to anti-PD-1 mAb followed by disease progression in only LN metastasis. Our results underscore that intertumoral heterogeneity alters characteristics of TILs even in the same patient, leading to mixed response to immunotherapy and significant difference in the outcome. Significance Several patients experience mixed responses to immunotherapies, but the biological mechanisms and clinical significance remain unclear. Our results from clinical and mouse studies underscore that intertumoral heterogeneity alters characteristics of TILs even in the same patient, leading to mixed response to immunotherapy and significant difference in the outcome.
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Affiliation(s)
| | - Takashi Inozume
- Chiba Cancer Center, Research Institute, Chiba, Japan.,Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba, Japan.,Department of Dermatology, University of Yamanashi, Yamanashi, Japan
| | - Masahito Kawazu
- Chiba Cancer Center, Research Institute, Chiba, Japan.,Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Youki Ueda
- Department of Tumor Microenvironment, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | | | - Shusuke Kawashima
- Chiba Cancer Center, Research Institute, Chiba, Japan.,Department of Dermatology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Joji Nagasaki
- Chiba Cancer Center, Research Institute, Chiba, Japan.,Department of Tumor Microenvironment, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toshihide Ueno
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Jason Lin
- Chiba Cancer Center, Research Institute, Chiba, Japan
| | - Yuuki Ohara
- Department of Pathology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takeshi Kuwata
- Department of Genetic Medicine and Services, National Cancer Center Hospital East, Kashiwa, Japan
| | - Hiroki Yukami
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Akihito Kawazoe
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kohei Shitara
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | | | - Takehiro Ohnuma
- Department of Dermatology, University of Yamanashi, Yamanashi, Japan.,Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | | | - Yoshiyasu Umeda
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Yu Kawahara
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Yasuhiro Nakamura
- Department of Skin Oncology/Dermatology, Saitama Medical University International Medical Center, Saitama, Japan
| | - Yukiko Kiniwa
- Department of Dermatology, Shinshu University School of Medicine, Nagano, Japan
| | - Ayako Morita
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - Eiki Ichihara
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - Katsuyuki Kiura
- Department of Allergy and Respiratory Medicine, Okayama University Hospital, Okayama, Japan
| | - Tomohiro Enokida
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Makoto Tahara
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Yoshinori Hasegawa
- Department of Applied Genomics, Kazusa DNA Research Institute, Chiba, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Hiroyoshi Nishikawa
- Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Kashiwa, Japan.,Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yosuke Togashi
- Chiba Cancer Center, Research Institute, Chiba, Japan.,Department of Tumor Microenvironment, Okayama University Graduate School of Medicine Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Division of Cancer Immunology, Research Institute/Exploratory Oncology Research and Clinical Trial Center (EPOC), National Cancer Center, Tokyo/Kashiwa, Japan
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4
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Nagasaki J, Inozume T, Sax N, Ariyasu R, Ishikawa M, Yamashita K, Kawazu M, Ueno T, Irie T, Tanji E, Morinaga T, Honobe A, Ohnuma T, Yoshino M, Iwata T, Kawase K, Sasaki K, Hanazawa T, Kochin V, Kawamura T, Matsue H, Hino M, Mano H, Suzuki Y, Nishikawa H, Togashi Y. PD-1 blockade therapy promotes infiltration of tumor-attacking exhausted T cell clonotypes. Cell Rep 2022; 38:110331. [PMID: 35108529 DOI: 10.1016/j.celrep.2022.110331] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [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: 02/07/2021] [Revised: 10/21/2021] [Accepted: 01/11/2022] [Indexed: 12/25/2022] Open
Abstract
PD-1 blockade exerts clinical efficacy against various types of cancer by reinvigorating T cells that directly attack tumor cells (tumor-specific T cells) in the tumor microenvironment (TME), and tumor-infiltrating lymphocytes (TILs) also comprise nonspecific bystander T cells. Here, using single-cell sequencing, we show that TILs include skewed T cell clonotypes, which are characterized by exhaustion (Tex) or nonexhaustion signatures (Tnon-ex). Among skewed clonotypes, those in the Tex, but not those in the Tnon-ex, cluster respond to autologous tumor cell lines. After PD-1 blockade, non-preexisting tumor-specific clonotypes in the Tex cluster appear in the TME. Tumor-draining lymph nodes (TDLNs) without metastasis harbor a considerable number of such clonotypes, whereas these clonotypes are rarely detected in peripheral blood. We propose that tumor-infiltrating skewed T cell clonotypes with an exhausted phenotype directly attack tumor cells and that PD-1 blockade can promote infiltration of such Tex clonotypes, mainly from TDLNs.
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Affiliation(s)
- Joji Nagasaki
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan; Division of Cancer Immunology, National Cancer Center, Research Institute, Exploratory Oncology Research and Clinical Trial Center (EPOC), 6-5-1 Kashiwanoha, Tokyo 104-0045, Kashiwa 277-8577, Japan; Department of Hematology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan
| | - Takashi Inozume
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan; Department of Dermatology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan; Department of Dermatology, University of Yamanashi, Chuo, Japan
| | - Nicolas Sax
- KOTAI Biotechnologies, Inc., Osaka 565-0871, Japan
| | - Ryo Ariyasu
- Division of Cancer Immunology, National Cancer Center, Research Institute, Exploratory Oncology Research and Clinical Trial Center (EPOC), 6-5-1 Kashiwanoha, Tokyo 104-0045, Kashiwa 277-8577, Japan
| | | | | | - Masahito Kawazu
- Division of Cellular Signaling, National Cancer Center, Research Institute, Tokyo 104-0045, Japan
| | - Toshihide Ueno
- Division of Cellular Signaling, National Cancer Center, Research Institute, Tokyo 104-0045, Japan
| | - Takuma Irie
- Division of Cancer Immunology, National Cancer Center, Research Institute, Exploratory Oncology Research and Clinical Trial Center (EPOC), 6-5-1 Kashiwanoha, Tokyo 104-0045, Kashiwa 277-8577, Japan
| | - Etsuko Tanji
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan
| | - Takao Morinaga
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan
| | - Akiko Honobe
- Department of Dermatology, University of Yamanashi, Chuo, Japan
| | - Takehiro Ohnuma
- Department of Dermatology, University of Yamanashi, Chuo, Japan
| | - Mitsuru Yoshino
- Department of Thoracic Surgery, Chiba Cancer Center, Chiba 260-8717, Japan
| | - Takekazu Iwata
- Department of Thoracic Surgery, Chiba Cancer Center, Chiba 260-8717, Japan
| | - Katsushige Kawase
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan; Department of Head and Neck Surgery, Chiba Cancer Center, Chiba 260-8717, Japan; Department of Otolaryngology, Head and Neck Surgery, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Keita Sasaki
- Department of Head and Neck Surgery, Chiba Cancer Center, Chiba 260-8717, Japan
| | - Toyoyuki Hanazawa
- Department of Otolaryngology, Head and Neck Surgery, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Vitaly Kochin
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan
| | | | - Hiroyuki Matsue
- Department of Dermatology, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
| | - Masayuki Hino
- Department of Hematology, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan
| | - Hiroyuki Mano
- Division of Cellular Signaling, National Cancer Center, Research Institute, Tokyo 104-0045, Japan
| | - Yutaka Suzuki
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8568, Japan
| | - Hiroyoshi Nishikawa
- Division of Cancer Immunology, National Cancer Center, Research Institute, Exploratory Oncology Research and Clinical Trial Center (EPOC), 6-5-1 Kashiwanoha, Tokyo 104-0045, Kashiwa 277-8577, Japan; Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya 466-8550, Japan.
| | - Yosuke Togashi
- Chiba Cancer Center, Research Institute, 666-2 Nitona-cho, Chuo-ku, Chiba 260-8717, Japan; Division of Cancer Immunology, National Cancer Center, Research Institute, Exploratory Oncology Research and Clinical Trial Center (EPOC), 6-5-1 Kashiwanoha, Tokyo 104-0045, Kashiwa 277-8577, Japan; Department of Tumor Microenvironment, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-0932, Japan.
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5
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Matsunaga W, Hamada K, Tagawa M, Morinaga T, Gotoh A. Cancer Cell-specific Transfection of hCas9 Gene Using Ad5F35 Vector. Anticancer Res 2021; 41:3731-3740. [PMID: 34281831 DOI: 10.21873/anticanres.15164] [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] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND The clustered regularly interspaced short palindromic repeats-associated protein 9 (CRISPR-Cas9) is thought to have promising clinical potential. However, the off-target effects of Cas9 are a major concern for its application. Therefore, we hypothesized that the adverse effects of off-target gene editing might be minimized if the human codon-optimized Streptococcus pyogenes Cas9 (hCas9) could be specifically expressed in cancer cells. MATERIALS AND METHODS We constructed a chimeric adenoviral vector, Ad5F35-MKp-hCas9, and infected human bladder cancer cell lines with this vector. The confirmation of hCas9 gene expression was performed in 3-4 days after from infection. RESULTS hCas9 gene expression was observed in Ad5F35-MKp-hCas9 infected bladder cancer cells but not in non-malignant cells. CONCLUSION Our study showed that the Ad5F35-MKp-hCas9 vector is capable of expressing the hCas9 gene with high specificity in bladder cancer cells. These findings may help in minimizing the risk of off-target effects of gene editing.
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Affiliation(s)
- Wataru Matsunaga
- Joint-use Research Facilities, Hyogo College of Medicine, Nishinomiya, Japan
| | - Katsuyuki Hamada
- Department of Clinical Oncology, School of Medicine, Toho University, Tokyo, Japan.,Department of Obstetrics and Gynecology, School of Medicine, Ehime University, Ehime, Japan
| | - Masatoshi Tagawa
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chiba, Japan
| | - Akinobu Gotoh
- Department of Education for Medical Research Base, Hyogo College of Medicine, Nishinomiya, Japan
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6
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Nguyen TTT, Shingyoji M, Hanazono M, Zhong B, Morinaga T, Tada Y, Shimada H, Hiroshima K, Tagawa M. An MDM2 inhibitor achieves synergistic cytotoxic effects with adenoviruses lacking E1B55kDa gene on mesothelioma with the wild-type p53 through augmenting NFI expression. Cell Death Dis 2021; 12:663. [PMID: 34230456 PMCID: PMC8260618 DOI: 10.1038/s41419-021-03934-y] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 06/07/2021] [Accepted: 06/08/2021] [Indexed: 12/20/2022]
Abstract
A majority of mesothelioma specimens were defective of p14 and p16 expression due to deletion of the INK4A/ARF region, and the p53 pathway was consequently inactivated by elevated MDM2 functions which facilitated p53 degradaton. We investigated a role of p53 elevation by MDM2 inhibitors, nutlin-3a and RG7112, in cytotoxicity of replication-competent adenoviruses (Ad) lacking the p53-binding E1B55kDa gene (Ad-delE1B). We found that a growth inhibition by p53-activating Ad-delE1B was irrelevant to p53 expression in the infected cells, but combination of Ad-delE1B and the MDM2 inhibitor produced synergistic inhibitory effects on mesothelioma with the wild-type but not mutated p53 genotype. The combination augmented p53 phosphorylation, activated apoptotic but not autophagic pathway, and enhanced DNA damage signals through ATM-Chk2 phosphorylation. The MDM2 inhibitors facilitated production of the Ad progenies through augmented expression of nuclear factor I (NFI), one of the transcriptional factors involved in Ad replications. Knocking down of p53 with siRNA did not increase the progeny production or the NFI expression. We also demonstrated anti-tumor effects by the combination of Ad-delE1B and the MDM2 inhibitors in an orthotopic animal model. These data collectively indicated that upregulation of wild-type p53 expression contributed to cytotoxicity by E1B55kDa-defective replicative Ad through NFI induction and suggested that replication-competent Ad together with augmented p53 levels was a therapeutic strategy for p53 wild-type mesothelioma.
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Affiliation(s)
- Thao Thi Thanh Nguyen
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Division of Medical Biotechnology, Biotechnology Center of Ho Chi Minh City, 2374 National Highway 1, District 12, Ho Chi Minh, Vietnam
| | - Masato Shingyoji
- Division of Respirology, Chiba Cancer Center, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Michiko Hanazono
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku©, Chiba, 260-8670, Japan
- Department of Respiratory Medicine, International University of Health and Welfare Atami Hospital, 13-1 Higasikaigan, Atami, 413-0012, Japan
| | - Hideaki Shimada
- Department of Surgery, Graduate School of Medicine, Toho University, 6-11-1 Oomori-nishi, Oota-ku, 143-8541, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Ohwadashinden, Yachiyo, 276-8524, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.
- Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
- Funabashi Orthopedic Hospital, 1-833 Hazama, Funabashi, 274-0822, Japan.
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7
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Zhong B, Shingyoji M, Hanazono M, Nguyễn TT, Morinaga T, Tada Y, Shimada H, Hiroshima K, Tagawa M. Combination of a p53-activating CP-31398 and an MDM2 or a FAK inhibitor produces growth suppressive effects in mesothelioma with wild-type p53 genotype. Apoptosis 2021; 25:535-547. [PMID: 32468177 DOI: 10.1007/s10495-020-01612-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
A majority of mesothelioma had the wild-type p53 genotype but was defective of p53 functions primarily due to a genetic defect in INK4A/ARF region. We examined a growth suppressive activity of CP-31398 which was developed to restore the p53 functions irrespective of the genotype in mesothelioma with wild-type or mutated p53. CP-31398 up-regulated p53 levels in cells with wild-type p53 genotype but induced cell growth suppression in a p53-independent manner. In contrasts, nutlin-3a, an MDM2 inhibitor, increased p53 and p21 levels in mesothelioma with the wild-type p53 genotype and produced growth suppressive effects. We investigated a combinatory effect of CP-31398 and nutlin-2a and found the combination produced synergistic growth inhibition in mesothelioma with the wild-type p53 but not with mutated p53. Western blot analysis showed that the combination increased p53 and the phosphorylation levels greater than treatments with the single agent, augmented cleavages of PARP and caspase-3, and decreased phosphorylated FAK levels. Combination of CP-31398 and defactinib, a FAK inhibitor, also achieved synergistic inhibitory effects and increased p53 with FAK dephosphorylation levels greater than the single treatment. These data indicated that a p53-activating CP-31398 achieved growth inhibitory effects in combination with a MDM2 or a FAK inhibitor and suggested a possible reciprocal pathway between p53 elevation and FAK inactivation.
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Affiliation(s)
- Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, 260-8670, Chiba, Japan
| | - Masato Shingyoji
- Division of Respirology, Chiba Cancer Center, 666-2 Nitona, Chuo-ku, 260-8717, Chiba, Japan
| | - Michiko Hanazono
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Thi Thanh Nguyễn
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, 260-8670, Chiba, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Yuji Tada
- Department of Pulmonary Medicine, International University of Health and Welfare, 852 Hatakeda, 286-8520, Narita, Japan
| | - Hideaki Shimada
- Department of Surgery, Graduate School of Medicine, Toho University, 6-11-1 Oomori-nishi, Oota-ku, 143-8541, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, 477-96, Ohwadashinden, Yachiyo, Chiba, 276-8524, Japan.,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8717, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan. .,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, 260-8670, Chiba, Japan. .,Department of Biochemistry and Genetics, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8717, Japan. .,Funabashi Orthopaedic Hospital, 1-833 Hazama, Funabashi, 274-0822, Japan.
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8
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Fukunaga M, Masuda H, Isotani A, Morinaga T, Yano M, Miura S, Ando K. Different clinical features between left atrial and left atrial appendage thrombus: an insight into more than 16,000 transesophageal echography database. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Thrombosis localization inside the left atrium (LA) is very frequently in the left atrial appendage (LAA). Some cases show atrial thrombus outside LAA, whose characteristics have not well elucidated.
Purpose
To reveal the different clinical background between thrombus inside LAA and outside LAA in a large transesophageal echo (TEE) database.
Methods
We searched the TEE database over 8 years of our center to identify patients in whom LA thrombus was pointed out. After initial TEE imaging, LA thrombus was confirmed with repeated TEE by echocardiography specialist or other modality, such as CT images.
Results
In a consecutive 16,142 TEE cases, LA thrombus was suspected in 162 cases (1%), finally 38 cases were identified as LA thrombus. They were divided into two groups; LAA only group and outside LAA group. Atrial fibrillation was concomitant in 34 patients (89%). History of stroke was significantly higher in LAA group (46.2% vs 8.3%, p=0.03) and malignant tumor was significantly higher in outside LAA group (23.1% vs 58.3%, p=0.035). LA thrombus was the first symptom in 3 cases of outside LAA group, following by malignant tumor was newly detected. Oral anticoagulation was prescribed in 23 cases (61%) at TEE study, mostly treated with warfarin, and median 123 days later thrombus dissolution was confirmed in 21 cases (55%). During mean follow up of 893 days, 4 patients experienced ischemic stroke, but two of them were due to self-interruption.
Conclusion
Outside LAA thrombus is minor but more concomitant with malignant tumor. Physician must be aware that screening of cancer is important if outside LAA thrombus is detected.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- M Fukunaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - H Masuda
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - A Isotani
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - T Morinaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - M Yano
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - S Miura
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Ando
- Kokura Memorial Hospital, Kitakyushu, Japan
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9
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Fukunaga M, Hirose K, Isotani A, Morinaga T, Ando K. P6355The behavior of atrial fibrillation in patients with heart failure hospitalization. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Relationship between atrial fibrillation (AF) and heart failure (HF) is often compared with proverbial question of which came first, the chicken or the egg. Some patients showing AF at the HF admission result in restoration of sinus rhythm (SR) at discharge. It is not well elucidated that the restoration into SR during hospitalization can render the preventive effect for rehospitalization.
Purpose
To investigate the impact of restoration into SR during hospitalization for readmission rate of the HF patients showing AF.
Methods
We enrolled consecutive 640 HF patients hospitalized from January 2015 to December 2015. Patients data were retrospectively investigated from medical record. Patients showing atrial fibrillation on admission but unrecognized ever were defined as “incident AF”; patients with AF diagnosed before admission were defined as “prevalent AF”. Primary endpoint was a composite of death from cardiovascular disease or hospitalization for worsening heart failure. Secondary endpoints were death from cardiovascular disease, unplanned hospitalization related to heart failure, and any hospitalization.
Results
During mean follow up of 19 months, 139 patients (22%) were categorized as incident AF and 145 patients (23%) were categorized as prevalent AF. Among 239 patients showing AF on admission, 44 patients were discharged in SR (39 patients in incident AF and 5 patients in prevalent AF). Among incident AF patients, the primary composite end point occurred in significantly fewer in those who discharged in SR (19% vs. 42% at 1-year; 23% vs. 53% at 2-year follow-up, p=0.005). To compare the risk factors related to readmission due to HF with the cox proportional-hazards model, AF only during hospitalization [Hazard Ratio (HR)=0.37, p<0.01] and prevalent AF (HR=1.67, p=0.04) was significantly associated. There was no significant difference depending on LVEF.
Conclusion
Newly diagnosed AF with restoration to SR during hospitalization was a good marker to forecast future prognosis.
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Affiliation(s)
- M Fukunaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Hirose
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - A Isotani
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - T Morinaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Ando
- Kokura Memorial Hospital, Kitakyushu, Japan
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10
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Fukunaga M, Morinaga T, Yamaji K, Nagashima M, Ando K. P6544A real world study of high frequency atrial anti-tachycardia pacing in new algorithm for atrial arrhythmia. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Advanced pacemakers feature atrial antitachycardia pacing (aATP) therapies for terminating atrial arrhythmia. Previous studies showed the efficacy of combined atrial preventive pacing and aATP in patients with pacemakers. The independent effect of aATP and the impact for patients outside the clinical trials has not been well elucidated.
Methods
In a single center, prospective, all-comers trial, we enrolled 567 patients implanted cardiac devices with Reactive ATP function. History of permanent atrial fibrillation (AF) was not included. After device interrogation of the AF burden and the longest AF duration in the last 6 months, aATP was programmed as a bit more aggressive setting than MINERVA trial (time interval was set as every 2 hours). As for newly implanted devices, aATP was activated after at least 3 months run-in period. Primary and secondary outcomes were the longest AF duration and cumulative percentage of progression into permanent AF, respectively.
Results
Of 541 eligible patients, aged 75.3±10.7 years, 356 pacemaker, 82 ICD and 103 CRT patients, the longest single episode of AF lasted ≤6 min in 439 patients (81.1%), >6 min to 6 h in 43 (8.0%), >6–24 h in 33 (6.1%), and >24 h in 26 (4.8%) at the enrollment. During mean follow-up of 1.9 years, the longest AF episode lasted >24 h in 49 patients (9.1%) and 14 patients (2.6%) progressed into permanent AF. According with baseline longest single episode of AF, patients with AF ≤6 min developed an episode >24 h in 0.8% at 1 year and 3.2% at 2 years follow up; patients with AF >6 min to 6 h developed an episode >24 h in none at 1 year and 7% at 2 years follow up; and patients with AF >6–24 h developed an episode >24 h in 19% at 1 year and 42% at 2 years follow up, respectively. In a subgroup analysis of in 192 patients with at least 1 aATP, 46 patients with high efficacy (>44%) did not developed an episode >24 h. Only one patient developed into permanent AF without aATP therapy. On multivariate analysis, neither ICD nor CRT was independent risk factor for developing the longest AF episode >24 h.
Conclusions
The independent use of aATP without atrial preventive pacing was effective for preventing AF progression in a real world cohort. Even without the previous AF episodes, aATP could prevent AF development, especially in patients showing high aATP efficacy. Future research is required to enhance the aATP success rate.
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Affiliation(s)
- M Fukunaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - T Morinaga
- Kokura Memorial Hospital, Kitakyushu, Japan
| | - K Yamaji
- Kokura Memorial Hospital, Kitakyushu, Japan
| | | | - K Ando
- Kokura Memorial Hospital, Kitakyushu, Japan
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11
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Qin Y, Sekine I, Hanazono M, Morinaga T, Fan M, Takiguchi Y, Tada Y, Shingyoji M, Yamaguchi N, Tagawa M. AMPK activation induced in pemetrexed-treated cells is associated with development of drug resistance independently of target enzyme expression. Mol Oncol 2019; 13:1419-1432. [PMID: 31033201 PMCID: PMC6547620 DOI: 10.1002/1878-0261.12496] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 02/13/2019] [Accepted: 04/26/2019] [Indexed: 12/29/2022] Open
Abstract
Pemetrexed (PEM) inhibits DNA and RNA synthesis and is currently one of the first‐line agents for mesothelioma. PEM suppresses the activities of several enzymes involved in purine and pyrimidine synthesis, and elevated activity of these enzymes in tumors is often linked with resistance to PEM. The agent also stimulates AMP‐activated protein kinase (AMPK) and consequently influences the mammalian target of rapamycin complex 1 (mTORC1) pathways. Nevertheless, it remains unclear whether PEM resistance is linked to the AMPK or mTORC1 pathways. Here, we established two independent PEM‐resistant mesothelioma cell lines in which expression of the PEM‐target enzymes was not elevated, and found that levels of phosphorylated AMPK and p70S6K and, to a lesser extent, levels of phosphorylated AKT and p53, were increased in these cells as compared with the respective parent cells. PEM stimulation also augmented phosphorylation of AMPK, p70S6K, AKT and p53 in most cases. An AMPK activator increased phosphorylation and PEM resistance in parental cells, and the inhibitor decreased the resistance of PEM‐resistant cells. In contrast, inhibitors for p70S6K and AKT did not influence PEM resistance; furthermore, increased levels of endogenous p53 did not affect PEM sensitivity. These data collectively indicate that constitutive activation of AMPK is associated with PEM resistance, and that this is unconnected with elevated DNA and RNA synthesis.
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Affiliation(s)
- Yiyang Qin
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Japan
| | - Ikuo Sekine
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Japan
| | - Michiko Hanazono
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Japan.,Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Japan
| | - Mengmeng Fan
- Department of Medical Oncology, Graduate School of Medicine, Chiba University, Japan
| | - Yuichi Takiguchi
- Department of Medical Oncology, Graduate School of Medicine, Chiba University, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, Japan
| | | | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Japan
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12
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Zhong B, Shingyoji M, Hanazono M, Nguyễn TTT, Morinaga T, Tada Y, Hiroshima K, Shimada H, Tagawa M. A p53-stabilizing agent, CP-31398, induces p21 expression with increased G2/M phase through the YY1 transcription factor in esophageal carcinoma defective of the p53 pathway. Am J Cancer Res 2019; 9:79-93. [PMID: 30755813 PMCID: PMC6356922] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 12/20/2018] [Indexed: 06/09/2023] Open
Abstract
Restoration of p53 functions is one of the therapeutic strategies for esophageal carcinoma which is often defective of the p53 pathway. We examined effects of CP-31398 which potentially increased expression of wild-type p53 or converted mutated p53 to the wild-type. We used 9 kinds of human squamous esophageal carcinoma cells with different p53 genotypes and examined expression of p53 and the related molecules in CP-31398-treated cells. Cisplatin, a DNA damaging agent, induced cleavages of PARP and caspase-3 without increase of p53 levels, indicating that the p53 down-stream pathway was disrupted in these cells. CP-31398 induced growth retardation but the cytotoxic effects were irrelevant to p53 genotype. CP-31398 influenced expression of p53 and the downstream molecules in a cell-dependent manner, but constantly increased p21 expression at the transcriptional level with decreased YY1 expression. Knockdown experiments with siRNA demonstrated that the CP-31398-mediated p21 up-regulation was unrelated with p53 expression but was associated with YY1 expression. We also showed that CP-31398-induced cell cycle changes including increase of G2/M populations was attributable to the up-regulated p21. These data collectively indicated that CP-31398 augmented endogenous p21 levels and induced cell cycle changes through regulation of YY1, and that YY1 was a novel target of CP-31398 in p53 dysfunctional cells.
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Affiliation(s)
- Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Masato Shingyoji
- Division of Respirology, Chiba Cancer Center666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
| | - Michiko Hanazono
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
| | - Thảo Thi Thanh Nguyễn
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba UniversityChiba, 1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women’s Medical University Yachiyo Medical Center477-96 Ohwadashinden, Yachiyo, Chiba 276-8524, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University6-11-1 Oomori-nishi, Oota-ku, Tokyo 143-8541, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute666-2 Nitona, Chuo-ku, Chiba 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University1-8-1 Inohana, Chuo-ku, Chiba 260-8670, Japan
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13
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Tada Y, Morinaga T, Sekine I, Suzuki T, Shimomura I, Tatsumi K, Takiguchi Y, Shimada H, Hiroshima K, Tagawa M. P2.06-34 Inhibition of the HGF/c-Met Pathway for Malignant Mesothelioma with an Intra-Thoracic Injection of the NK4 Expressing Adenoviral Vectors. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Chai K, Ning X, Nguyễn TTT, Zhong B, Morinaga T, Li Z, Shingyoji M, Tada Y, Tatsumi K, Shimada H, Hiroshima K, Yamaguchi N, Tagawa M. Heat shock protein 90 inhibitors augment endogenous wild-type p53 expression but down-regulate the adenovirally-induced expression by inhibiting a proteasome activity. Oncotarget 2018; 9:26130-26143. [PMID: 29899847 PMCID: PMC5995238 DOI: 10.18632/oncotarget.25452] [Citation(s) in RCA: 10] [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: 11/07/2017] [Accepted: 05/01/2018] [Indexed: 12/29/2022] Open
Abstract
Heat shock protein 90 (HSP90) inhibitors suppressed MDM4 functions which mediated p53 ubiquitination, and blocked a chaperon function which influenced expression of the client proteins. We examined cytotoxic effects of the inhibitors, 17-allylamino-17-demetheoxygeldanamycin (17-AAG) and 17-dimethylaminoethylamino-17-demethoxy-geldanamycin (17-DMAG), on mesothelioma and investigated combinatory effects of the inhibitors and adenoviruses expressing the wild-type p53 gene (Ad-p53). A majority of mesothelioma lacks p14 and p16 expression, which leads to defective p53 pathway despite bearing the wild-type p53 genotype. The HSP90 inhibitors up-regulated endogenous wild-type p53 expression and induced cell death. Furthermore, the inhibitors increased the endogenous p53 levels that were induced by cisplatin. Nevertheless, the HSP90 inhibitors suppressed Ad-p53-induced exogenous p53 expression primarily at a posttranscriptional level and inhibited the Ad-p53-mediated cell death. HSP90 inhibitors suppressed ubiquitination processes which were involved in p53 degradation, but a proteasome inhibitor, MG-132, prevented the HSP90 inhibitors-induced p53 down-regulation. In contrast, an inhibitor for HSP70 with a chaperon function, pifithrin-μ, did not produce the p53 down-regulation. The HSP90 inhibitors did not suppress expression of Ad receptor molecules but rather increased expression of green fluorescence protein transduced by the same Ad vector. These data collectively indicated that an HSP90 inhibitor possessed a divalent action on p53 expression, as an activator for endogenous wild-type p53 through inhibited ubiquitination and a negative regulator of exogenously over-expressed p53 through the proteasome pathway.
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Affiliation(s)
- Kuan Chai
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba 260-8675, Japan
| | - Xuerao Ning
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba 260-8675, Japan
| | - Thảo Thi Thanh Nguyễn
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
| | - Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan
| | - Zhihan Li
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
| | - Masato Shingyoji
- Division of Respirology, Chiba Cancer Center, Chuo-ku, Chiba 260-8717, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University, Tokyo 143-8540, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo 276-8524, Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba 260-8675, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chuo-ku, Chiba 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chuo-ku, Chiba 260-8670, Japan
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15
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Okamoto A, Morinaga T, Yamaguchi N, Yamaguchi N. Golgi Distribution of Lyn to Caveolin- and Giantin-Positive cis-Golgi Membranes and the Caveolin-Negative, TGN46-Positive trans-Golgi Network. Biol Pharm Bull 2018; 41:142-146. [PMID: 29311477 DOI: 10.1248/bpb.b17-00681] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Src-family tyrosine kinases, classified as cytosolic enzymes, have crucial roles in regulating cell proliferation, differentiation, migration and cell-shape changes. Newly synthesized Lyn, a member of Src-family kinases, is biosynthetically accumulated at the cytoplasmic face of caveolin-containing Golgi membranes via posttranslational lipid modifications and then transported to the plasma membrane. However, the precise intra-Golgi localization of Lyn remains elusive. By means of a 19°C block-release technique and short-term brefeldin A treatment, we show here that the distribution of Lyn is not monotonously spread within the Golgi but selectively intensified in two distinct membrane compartments: giantin- and caveolin-positive membranes and trans-Golgi network protein (TGN)46-positive but caveolin-negative membranes. Furthermore, Lyn exits the Golgi from the caveolin-positive cis-Golgi cisternae or the caveolin-negative trans-Golgi network. These results suggest that Lyn moves apart from caveolin, a secretory protein, within the Golgi during Lyn's trafficking to the plasma membrane.
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Affiliation(s)
- Aya Okamoto
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Takao Morinaga
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University.,Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute
| | - Noritaka Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University
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16
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Morinaga T, Nguyễn TTT, Zhong B, Hanazono M, Shingyoji M, Sekine I, Tada Y, Tatsumi K, Shimada H, Hiroshima K, Tagawa M. An image cytometric technique is a concise method to detect adenoviruses and host cell proteins and to monitor the infection and cellular responses induced. Virol J 2017; 14:219. [PMID: 29126418 PMCID: PMC5681831 DOI: 10.1186/s12985-017-0888-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 10/31/2017] [Indexed: 11/30/2022] Open
Abstract
Background Genetically modified adenoviruses (Ad) with preferential replications in tumor cells have been examined for a possible clinical applicability as an anti-cancer agent. A simple method to detect viral and cellular proteins is valuable to monitor the viral infections and to predict the Ad-mediated cytotoxicity. Methods We used type 5 Ad in which the expression of E1A gene was activated by 5′-regulatory sequences of genes that were augmented in the expression in human tumors. The Ad were further modified to have the fiber-knob region replaced with that derived from type 35 Ad. We infected human mesothelioma cells with the fiber-replaced Ad, and sequentially examined cytotoxic processes together with an expression level of the viral E1A, hexon, and cellular cleaved caspase-3 with image cytometric and Western blot analyses. Results The replication-competent Ad produced cytotoxicity on mesothelioma cells. The infected cells expressed E1A and hexon 24 h after the infection and then showed cleavage of caspase-3, all of which were detected with image cytometry and Western blot analysis. Image cytometry furthermore demonstrated that increased Ad doses did not enhance an expression level of E1A and hexon in an individual cell and that caspase-3-cleaved cells were found more frequently in hexon-positive cells than in E1A-positive cells. Image cytometry thus detected these molecular changes in a sensitive manner and at a single cell level. We also showed that an image cytometric technique detected expression changes of other host cell proteins, cyclin-E and phosphorylated histone H3 at a single cell level. Conclusions Image cytometry is a concise procedure to detect expression changes of Ad and host cell proteins at a single cell level, and is useful to analyze molecular events after the infection. Electronic supplementary material The online version of this article (10.1186/s12985-017-0888-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Thảo Thi Thanh Nguyễn
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Michiko Hanazono
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | | | - Ikuo Sekine
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan. .,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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17
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Hayashi M, Miura M, Kawaguchi T, Yano M, Itou S, Morinaga T, Isotani A, Tsubota H, Arai Y, Hanyu M, Shirai S. P3293One year result of the underfilling strategy in transcatheter aortic valve implantation with balloon expandable valve. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3293] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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18
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Fujioka S, Kuramitsu S, Hiromasa T, Jinnouchi H, Morinaga T, Domei T, Hyodo M, Soga Y, Shirai S, Ando K. P3315Long-term efficacy and safety of biodegradable polymer biolimus-eluting vs. permanent polymer everolimus-eluting stents in diabetic Patients: 4-year clinical outcomes. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3315] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Shimazu K, Tada Y, Morinaga T, Shingyoji M, Sekine I, Shimada H, Hiroshima K, Namiki T, Tatsumi K, Tagawa M. Metformin produces growth inhibitory effects in combination with nutlin-3a on malignant mesothelioma through a cross-talk between mTOR and p53 pathways. BMC Cancer 2017; 17:309. [PMID: 28464864 PMCID: PMC5414226 DOI: 10.1186/s12885-017-3300-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 08/20/2016] [Accepted: 04/25/2017] [Indexed: 12/29/2022] Open
Abstract
Background Mesothelioma is resistant to conventional treatments and is often defective in p53 pathways. We then examined anti-tumor effects of metformin, an agent for type 2 diabetes, and combinatory effects of metformin and nutlin-3a, an inhibitor for ubiquitin-mediated p53 degradation, on human mesothelioma. Methods We examined the effects with a colorimetric assay and cell cycle analyses, and investigated molecular events in cells treated with metformin and/or nutlin-3a with Western blot analyses. An involvement of p53 was tested with siRNA for p53. Results Metformin suppressed cell growth of 9 kinds of mesothelioma including immortalized cells of mesothelium origin irrespective of the p53 functional status, whereas susceptibility to nutlin-3a was partly dependent on the p53 genotype. We investigated combinatory effects of metformin and nutlin-3a on, nutlin-3a sensitive MSTO-211H and NCI-H28 cells and insensitive EHMES-10 cells, all of which had the wild-type p53 gene. Knockdown of p53 expression with the siRNA demonstrated that susceptibility of MSTO-211H and NCI-H28 cells to nutlin-3a was p53-dependent, whereas that of EHMES-10 cells was not. Nevertheless, all the cells treated with both agents produced additive or synergistic growth inhibitory effects. Cell cycle analyses also showed that the combination increased sub-G1 fractions greater than metformin or nutlin-3a alone in MSTO-211H and EHMES-10 cells. Western blot analyses showed that metformin inhibited downstream pathways of the mammalian target of rapamycin (mTOR) but did not activate the p53 pathways, whereas nutlin-3a phosphorylated p53 and suppressed mTOR pathways. Cleaved caspase-3 and conversion of LC3A/B were also detected but it was dependent on cells and treatments. The combination of both agents in MSTO-211H cells rather suppressed the p53 pathways that were activated by nutrin-3a treatments, whereas the combination rather augmented the p53 actions in NCI-H28 and EHMES-10 cells. Conclusion These data collectively indicated a possible interactions between mTOR and p53 pathways, and the combinatory effects were attributable to differential mechanisms induced by a cross-talk between the pathways. Electronic supplementary material The online version of this article (doi:10.1186/s12885-017-3300-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kengo Shimazu
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.,Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Japanese-Oriental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Masato Shingyoji
- Division of Respirology, Chiba Cancer Center, 666-2 Nitona, Chuo-ku, Chiba, Chiba, 260-8717, Japan
| | - Ikuo Sekine
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Ibaragi, Tsukuba, 305-8575, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University, 6-11-1 Oomori-nishi, Oota-ku, Tokyo, 143-8541, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Ohwadashinden, Yachiyo, Chiba, 276-8524, Japan
| | - Takao Namiki
- Department of Japanese-Oriental Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan. .,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
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20
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Morinaga T, Yanase S, Okamoto A, Yamaguchi N, Yamaguchi N. Recruitment of Lyn from endomembranes to the plasma membrane through calcium-dependent cell-cell interactions upon polarization of inducible Lyn-expressing MDCK cells. Sci Rep 2017; 7:493. [PMID: 28352128 PMCID: PMC5428707 DOI: 10.1038/s41598-017-00538-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 11/29/2016] [Accepted: 02/28/2017] [Indexed: 01/04/2023] Open
Abstract
Src-family kinases, expressed in a wide variety of cell types, are anchored to cellular membranes through posttranslational lipid modifications and involved in diverse cellular signalling. In epithelial cells, Src-family kinases are localized at the plasma membrane and participate in epithelial functions. Epithelial cell polarity is achieved through dynamic reorganization of protein trafficking. To examine the trafficking of Src-family kinases between polarized and non-polarized epithelial cells, we generated an MDCK cell line that can inducibly express a protein of interest in a polarized state at any time. We show here that Lyn, a member of Src-family kinases, mainly localizes to the plasma membrane in polarized MDCK cells and to endomembranes in non-polarized MDCK cells. Cell-cell interactions between adjacent MDCK cells recruit Lyn from endomembranes to the plasma membrane even without cell attachment to extracellular matrix scaffolds, and loss of cell-cell interactions by calcium deprivation relocates Lyn from the plasma membrane to endomembranes through Rab11-mediated recycling. Therefore, using our MDCK cells expressing inducible Lyn, we reveal that calcium-dependent cell-cell interactions play a critical role in plasma membrane localization of Lyn in polarized MDCK cells.
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Affiliation(s)
- Takao Morinaga
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan.,Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, Chiba, 260-8717, Japan
| | - Sayuri Yanase
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Aya Okamoto
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Noritaka Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, 260-8675, Japan.
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21
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Morii M, Kubota S, Honda T, Yuki R, Morinaga T, Kuga T, Tomonaga T, Yamaguchi N, Yamaguchi N. Src Acts as an Effector for Ku70-dependent Suppression of Apoptosis through Phosphorylation of Ku70 at Tyr-530. J Biol Chem 2016; 292:1648-1665. [PMID: 27998981 DOI: 10.1074/jbc.m116.753202] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 08/10/2016] [Revised: 12/16/2016] [Indexed: 11/06/2022] Open
Abstract
Src-family tyrosine kinases are widely expressed in many cell types and participate in a variety of signal transduction pathways. Despite the significance of Src in suppression of apoptosis, its mechanism remains poorly understood. Here we show that Src acts as an effector for Ku70-dependent suppression of apoptosis. Inhibition of endogenous Src activity promotes UV-induced apoptosis, which is impaired by Ku70 knockdown. Src phosphorylates Ku70 at Tyr-530, being close to the possible acetylation sites involved in promotion of apoptosis. Src-mediated phosphorylation of Ku70 at Tyr-530 decreases acetylation of Ku70, whereas Src inhibition augments acetylation of Ku70. Importantly, knockdown-rescue experiments with stable Ku70 knockdown cells show that the nonphosphorylatable Y530F mutant of Ku70 reduces the ability of Ku70 to suppress apoptosis accompanied by augmentation of Ku70 acetylation. Our results reveal that Src plays a protective role against hyperactive apoptotic cell death by reducing apoptotic susceptibility through phosphorylation of Ku70 at Tyr-530.
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Affiliation(s)
- Mariko Morii
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Sho Kubota
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Takuya Honda
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Ryuzaburo Yuki
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Takao Morinaga
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Takahisa Kuga
- the Laboratory of Proteome Research, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan
| | - Takeshi Tomonaga
- the Laboratory of Proteome Research, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka 567-0085, Japan
| | - Noritaka Yamaguchi
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Naoto Yamaguchi
- From the Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan.
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22
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Honda T, Soeda S, Tsuda K, Yamaguchi C, Aoyama K, Morinaga T, Yuki R, Nakayama Y, Yamaguchi N, Yamaguchi N. Protective role for lipid modifications of Src-family kinases against chromosome missegregation. Sci Rep 2016; 6:38751. [PMID: 27941902 PMCID: PMC5150256 DOI: 10.1038/srep38751] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 05/27/2016] [Accepted: 11/15/2016] [Indexed: 11/10/2022] Open
Abstract
Src-family tyrosine kinases, which are expressed in various cell types, play critical roles in cell signalling at the cytoplasmic side of the plasma membrane through their lipid modifications. Src-family kinases are cotranslationally myristoylated and posttranslationally palmitoylated in the amino-terminal region. The Src-family member Lyn contains a myristoylation site at glycine-2 and a palmitoylation site at cysteine-3, whereas c-Src has a myristoylation site at glycine-2 but not any palmitoylation sites. However, little is known about the role for lipid modifications of Src-family kinases in cell division. Here, we show that non-lipid-modified Lyn and c-Src, Lyn(G2A/C3A) and c-Src(G2A), are delocalized from membranes to the cytoplasm and the nucleus, which gives rise to a significant increase in the rate of chromosome missegregation, such as chromosome lagging and anaphase chromosome bridging, in a tyrosine kinase activity-dependent manner. Treatment with the Src inhibitor PP2 shows that the kinase activity of non-lipid-modified, non-membrane-bound Src during M phase is critical for giving rise to chromosome missegregation. Given that only a fraction of Src-family kinases fails in lipid modifications during biosynthesis, these results suggest that Src’s membrane anchorage through their lipid modifications from prophase to anaphase plays a protective role against induction of chromosome missegregation.
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Affiliation(s)
- Takuya Honda
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Shuhei Soeda
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Kunihiko Tsuda
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Chihiro Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Kazumasa Aoyama
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Takao Morinaga
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Ryuzaburo Yuki
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Yuji Nakayama
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan.,Department of Biochemistry and Molecular Biology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Noritaka Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Naoto Yamaguchi
- Laboratory of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
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23
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Jiang Y, Zhong B, Kawamura K, Morinaga T, Shingyoji M, Sekine I, Tada Y, Tatsumi K, Shimada H, Hiroshima K, Tagawa M. Combination of a third generation bisphosphonate and replication-competent adenoviruses augments the cytotoxicity on mesothelioma. BMC Cancer 2016; 16:455. [PMID: 27405588 PMCID: PMC4942884 DOI: 10.1186/s12885-016-2483-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 07/04/2016] [Indexed: 02/07/2023] Open
Abstract
Background Approximately 80 % of mesothelioma specimens have the wild-type p53 gene, whereas they contain homozygous deletions in the INK4A/ARF locus that encodes p14ARF and the 16INK4A genes. Consequently, the majority of mesothelioma is defective of the p53 pathways. We examined whether zoledronic acid (ZOL), a third generation bisphosphonate, and adenoviruses with a deletion of the E1B-55kD gene (Ad-delE1B55), which augments p53 levels in the infected tumors, could produce combinatory anti-tumor effects on human mesothelioma cells bearing the wild-type p53 gene. Methods Cytotoxicity of ZOL and Ad-delE1B55 was assessed with a WST assay. Cell cycle changes were tested with flow cytometry. Expression levels of relevant molecules were examined with western blot analysis to investigate a possible mechanism of cytotoxicity. Furthermore, the expressions of Ad receptors on target cells and infectivity were estimated with flow cytometry. Viral replication was assayed with the tissue culture infection dose method. Results A combinatory use of ZOL and Ad-delE1B55 suppressed cell growth and increased sub-G1 or S-phase populations compared with a single agent, depending on cells tested. The combinatory treatment up-regulated p53 levels and subsequently enhanced the cleavage of caspase-3, 8, 9 and poly (ADP-ribose) polymerase, but expression of molecules involved in autophagy pathways were inconsistent. ZOL-treated cells also increased Ad infectivity with a dose-dependent manner and augmented Ad replication although the expression levels of integrin molecules, one of the Ad receptors, were down-regulated. Conclusions These findings indicated that ZOL and Ad-delE1B55 achieved combinatory anti-tumor effects through augmented apoptotic pathways or increased viral replication. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2483-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yuanyuan Jiang
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Boya Zhong
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kiyoko Kawamura
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | | | - Ikuo Sekine
- Department of Medical Oncology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan. .,Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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24
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Tagawa M, Morinaga T, Li Z, Nguyen TT, Zhong B, Kubo S, Sekine I, Tada Y, Tatsumi K, Shimada H, Hiroshima K. 211. Combination of Forced Transduction of P53 and an Agent That Blocks MDM2-p53 Interactions Produces Synergistic Cytotoxicity on Mesothelioma Defective of the INK4A/ARF Region. Mol Ther 2016. [DOI: 10.1016/s1525-0016(16)33020-9] [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: 10/20/2022] Open
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25
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Yamauchi S, Kawamura K, Okamoto S, Morinaga T, Jiang Y, Shingyoji M, Sekine I, Kubo S, Tada Y, Tatsumi K, Shimada H, Hiroshima K, Tagawa M. Replication-competent adenoviruses with the type 35-derived fiber-knob region achieve reactive oxygen species-dependent cytotoxicity and produce greater toxicity than those with the type 5-derived region in pancreatic carcinoma. Apoptosis 2015; 20:1587-98. [PMID: 26373551 DOI: 10.1007/s10495-015-1171-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pancreatic carcinoma is relatively resistant to chemotherapy and cell death induced by replication of adenoviruses (Ad) can be one of the therapeutic options. Transduction efficacy of conventional type 5 Ad (Ad5) is however low and the cytotoxic mechanism by replication-competent Ad was not well understood. We constructed replication-competent Ad5 of which the E1A promoter region was replaced with a transcriptional regulatory region of the midkine, the survivin or the cyclooxygenase-2 gene, all of which were expressed at a high level in human tumors. We also prepared replication-competent Ad5 that were activated with the same region but had the type 35 Ad-derived fiber-knob region (AdF35) to convert the major cellular receptor for Ad infection from the coxsackie adenovirus receptor to CD46 molecules. Replication-competent AdF35 that were activated with the exogenous region produced cytotoxic effects on human pancreatic carcinoma cells greater than the corresponding Ad5 bearing with the same regulatory region. Cells infected with the AdF35 showed cytopathic effects and increased sub-G1 fractions. Caspase-9, less significantly caspase-8 and poly (ADP-ribose) polymerase, but not caspase-3 was cleaved and expression of molecules involved in autophagy and caspase-independent cell death pathways remained unchanged. Nevertheless, H2A histone family member X molecules were phosphorylated, and N-acetyl-L-cystein, an inhibitor for reactive oxygen species, suppressed the AdF35-mediated cytotoxicity. These data indicated a novel mechanism of Ad-mediated cell death and suggest a possible clinical application of the fiber-knob modified Ad.
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Affiliation(s)
- Suguru Yamauchi
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kiyoko Kawamura
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Shinya Okamoto
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takao Morinaga
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yuanyuan Jiang
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | | | - Ikuo Sekine
- Division of Respirology, Chiba Cancer Center, Chiba, Japan
| | - Shuji Kubo
- Department of Genetics, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yuji Tada
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideaki Shimada
- Department of Surgery, School of Medicine, Toho University, Tokyo, Japan
| | - Kenzo Hiroshima
- Department of Pathology, Tokyo Women's Medical University Yachiyo Medical Center, Yachiyo, Japan
| | - Masatoshi Tagawa
- Division of Pathology and Cell Therapy, Chiba Cancer Center Research Institute, 666-2 Nitona, Chuo-ku, Chiba, 260-8717, Japan.
- Department of Molecular Biology and Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan.
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26
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Takei Y, Okamoto S, Kawamura K, Jiang Y, Morinaga T, Shingyoji M, Sekine I, Kubo S, Tada Y, Tatsumi K, Shimada H, Hiroshima K, Yamaguchi N, Tagawa M. Expression of p53 synergistically augments caspases-mediated apoptosis induced by replication-competent adenoviruses in pancreatic carcinoma cells. Cancer Gene Ther 2015; 22:445-53. [DOI: 10.1038/cgt.2015.33] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 07/02/2015] [Accepted: 07/03/2015] [Indexed: 12/16/2022]
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27
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Tagawa M, Kawamura K, Okamoto S, Jiang Y, Li Z, Morinaga T, Kubo S, Shingyoji M, Sekine I, Tada Y, Tatsumi K, Shimada H, Hiroshima K. 630. Cytotoxicity by Adenovirus Replications is Associated with DNA Damages and the Activated P53 Pathways and Is Dependent on Reactive Oxygen Species. Mol Ther 2015. [DOI: 10.1016/s1525-0016(16)34239-3] [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: 10/20/2022] Open
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Morinaga T, Abe K, Nakayama Y, Yamaguchi N, Yamaguchi N. Activation of Lyn tyrosine kinase through decreased membrane cholesterol levels during a change in its membrane distribution upon cell detachment. J Biol Chem 2014; 289:26327-26343. [PMID: 25104351 DOI: 10.1074/jbc.m114.580001] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cellular membranes, which can serve as scaffolds for signal transduction, dynamically change their characteristics upon cell detachment. Src family kinases undergo post-translational lipid modification and are involved in a wide range of signaling events at the plasma membrane, such as cell proliferation, cell adhesion, and survival. Previously, we showed the differential membrane distributions among the members of Src family kinases by sucrose density gradient fractionation. However, little is known about the regulation of the membrane distribution of Src family kinases upon cell detachment. Here, we show that cell detachment shifts the main peak of the membrane distribution of Lyn, a member of Src family kinase, from the low density to the high density membrane fractions and enhances the kinase activity of Lyn. The change in Lyn distribution upon cell detachment involves both dynamin activity and a decrease in membrane cholesterol. Cell detachment activates Lyn through decreased membrane cholesterol levels during a change in its membrane distribution. Furthermore, cholesterol incorporation decreases Lyn activity and reduces the viability of suspension cells. These results suggest that cell detachment-induced Lyn activation through the change in the membrane distribution of Lyn plays an important role in survival of suspension cells.
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Affiliation(s)
- Takao Morinaga
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Kohei Abe
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Yuji Nakayama
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Noritaka Yamaguchi
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
| | - Naoto Yamaguchi
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan.
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29
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Fukumoto Y, Miura T, Morii M, Kubota S, Honda T, Kubota S, Morinaga T, Yamaguchi N, Nakayama Y, Yamaguchi N. v-Src inhibits the interaction between Rad17 and Rad9 and induces replication fork collapse. Biochem Biophys Res Commun 2014; 450:885-90. [DOI: 10.1016/j.bbrc.2014.06.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Accepted: 06/17/2014] [Indexed: 12/27/2022]
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30
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Masuda Y, Oguri M, Morinaga T, Hirao T. Three-dimensional morphological characterization of the skin surface micro-topography using a skin replica and changes with age. Skin Res Technol 2013; 20:299-306. [DOI: 10.1111/srt.12119] [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] [Accepted: 10/19/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Y. Masuda
- Shiseido Research Center; Yokohama Japan
| | - M. Oguri
- Shiseido Research Center; Yokohama Japan
| | | | - T. Hirao
- Shiseido Research Center; Yokohama Japan
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31
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Kubota S, Fukumoto Y, Aoyama K, Ishibashi K, Yuki R, Morinaga T, Honda T, Yamaguchi N, Kuga T, Tomonaga T, Yamaguchi N. Phosphorylation of KRAB-associated protein 1 (KAP1) at Tyr-449, Tyr-458, and Tyr-517 by nuclear tyrosine kinases inhibits the association of KAP1 and heterochromatin protein 1α (HP1α) with heterochromatin. J Biol Chem 2013; 288:17871-83. [PMID: 23645696 DOI: 10.1074/jbc.m112.437756] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Protein tyrosine phosphorylation regulates a wide range of cellular processes at the plasma membrane. Recently, we showed that nuclear tyrosine phosphorylation by Src family kinases (SFKs) induces chromatin structural changes. In this study, we identify KRAB-associated protein 1 (KAP1/TIF1β/TRIM28), a component of heterochromatin, as a nuclear tyrosine-phosphorylated protein. Tyrosine phosphorylation of KAP1 is induced by several tyrosine kinases, such as Src, Lyn, Abl, and Brk. Among SFKs, Src strongly induces tyrosine phosphorylation of KAP1. Nucleus-targeted Lyn potentiates tyrosine phosphorylation of KAP1 compared with intact Lyn, but neither intact Fyn nor nucleus-targeted Fyn phosphorylates KAP1. Substitution of the three tyrosine residues Tyr-449/Tyr-458/Tyr-517, located close to the HP1 binding-motif, into phenylalanine ablates tyrosine phosphorylation of KAP1. Immunostaining and chromatin fractionation show that Src and Lyn decrease the association of KAP1 with heterochromatin in a kinase activity-dependent manner. KAP1 knockdown impairs the association of HP1α with heterochromatin, because HP1α associates with KAP1 in heterochromatin. Intriguingly, tyrosine phosphorylation of KAP1 decreases the association of HP1α with heterochromatin, which is inhibited by replacement of endogenous KAP1 with its phenylalanine mutant (KAP1-Y449F/Y458F/Y517F, KAP1-3YF). In DNA damage, KAP1-3YF repressed transcription of p21. These results suggest that nucleus-localized tyrosine kinases, including SFKs, phosphorylate KAP1 at Tyr-449/Tyr-458/Tyr-517 and inhibit the association of KAP1 and HP1α with heterochromatin.
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Affiliation(s)
- Sho Kubota
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba 260-8675, Japan
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Boonlue S, Surapat W, Pukahuta C, Suwanarit P, Suwanarit A, Morinaga T. Diversity and efficiency of arbuscular mycorrhizal fungi in soils from organic chili (Capsicum frutescens) farms. MYCOSCIENCE 2012. [DOI: 10.1007/s10267-011-0131-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [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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Juurinen I, Nakahara K, Ando N, Nishiumi T, Seta H, Yoshida N, Morinaga T, Itou M, Ninomiya T, Sakurai Y, Salonen E, Nordlund K, Hämäläinen K, Hakala M. Measurement of two solvation regimes in water-ethanol mixtures using x-ray compton scattering. Phys Rev Lett 2011; 107:197401. [PMID: 22181642 DOI: 10.1103/physrevlett.107.197401] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Revised: 06/17/2011] [Indexed: 05/31/2023]
Abstract
Water-ethanol mixtures exhibit interesting anomalies in their macroscopic properties. Despite a lot of research, the origin of the anomalies and the microscopic structure itself is still far from completely known. We have utilized the synchrotron x-ray Compton scattering technique to elucidate the structure of aqueous ethanol from a new experimental perspective. The technique is uniquely sensitive to the local molecular geometries at the angstrom and subangstrom scales. The experiments reveal two distinct mixing regimes in terms of geometry: the dilute 5 mol % and the concentrated >15 mol % regimes. By comparing with pure liquids, the former regime is characterized by an intramolecular and the latter by an intermolecular change. The findings bring new light to evaluating the hypothesis of formation of clathratelike structures at the dilute concentrations.
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Affiliation(s)
- I Juurinen
- Department of Physics, PO Box 64, FI-00014 University of Helsinki, Finland
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Aoyama K, Fukumoto Y, Ishibashi K, Kubota S, Morinaga T, Horiike Y, Yuki R, Takahashi A, Nakayama Y, Yamaguchi N. Nuclear c-Abl-mediated tyrosine phosphorylation induces chromatin structural changes through histone modifications that include H4K16 hypoacetylation. Exp Cell Res 2011; 317:2874-903. [PMID: 22001646 DOI: 10.1016/j.yexcr.2011.09.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 09/07/2011] [Accepted: 09/26/2011] [Indexed: 11/28/2022]
Abstract
c-Abl tyrosine kinase, which is ubiquitously expressed, has three nuclear localization signals and one nuclear export signal and can shuttle between the nucleus and the cytoplasm. c-Abl plays important roles in cell proliferation, adhesion, migration, and apoptosis. Recently, we developed a pixel imaging method for quantitating the level of chromatin structural changes and showed that nuclear Src-family tyrosine kinases are involved in chromatin structural changes upon growth factor stimulation. Using this method, we show here that nuclear c-Abl induces chromatin structural changes in a manner dependent on the tyrosine kinase activity. Expression of nuclear-targeted c-Abl drastically increases the levels of chromatin structural changes, compared with that of c-Abl. Intriguingly, nuclear-targeted c-Abl induces heterochromatic profiles of histone methylation and acetylation, including hypoacetylation of histone H4 acetylated on lysine 16 (H4K16Ac). The level of heterochromatic histone modifications correlates with that of chromatin structural changes. Adriamycin-induced DNA damage stimulates translocation of c-Abl into the nucleus and induces chromatin structural changes together with H4K16 hypoacetylation. Treatment with trichostatin A, a histone deacetylase inhibitor, blocks chromatin structural changes but not nuclear tyrosine phosphorylation by c-Abl. These results suggest that nuclear c-Abl plays an important role in chromatin dynamics through nuclear tyrosine phosphorylation-induced heterochromatic histone modifications.
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Affiliation(s)
- Kazumasa Aoyama
- Department of Molecular Cell Biology, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba 260-8675, Japan
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Matsubara H, Tsuchiya H, Kawahara N, Kobayashi T, Morinaga T, Tomita K. Ilizarov external fixator for burst fracture of the lumbar spine: a case report. J Orthop Surg (Hong Kong) 2007; 15:380-3. [PMID: 18162692 DOI: 10.1177/230949900701500329] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A 50-year-old man presented with severe back pain and tenderness throughout the lumbar area after falling from a ladder. He had an unstable type-B burst fracture, with a spinal canal narrowing of 36% and an anterior height loss of 65%. His lower-limb neurological function was intact. An Ilizarov external spinal fixator was used; the pedicular half pins were inserted into the bilateral T11, T12, L2, and L3 pedicles; bilateral pedicular half pins were fixed at each level with external plates and rods. Postoperatively, the patient had a lordosis of 2 degrees and was able to walk 7 days later. The external fixator was removed at 10 weeks. Six years and 10 months after surgery, the patient had a kyphosis of 19 degrees that did not affect his activities of daily living.
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Affiliation(s)
- H Matsubara
- Department of Orthopaedic Surgery, School of Medicine, Kanazawa University, Kanazawa, Japan
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Shimoyama Y, Morikawa Y, Ichihara M, Kodama Y, Fukuda N, Hayashi H, Morinaga T, Iwashita T, Murakumo Y, Takahashi M. Identification of human SEP1 as a glial cell line-derived neurotrophic factor-inducible protein and its expression in the nervous system. Neuroscience 2003; 121:899-906. [PMID: 14580940 DOI: 10.1016/s0306-4522(03)00487-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Glial cell line-derived neurotrophic factor (GDNF) signals through multisubunit receptor complex consisting of RET tyrosine kinase and a glycosylphosphatidylinositol-anchored coreceptor called GDNF family receptor alpha1 (GFRalpha1). In the current study, we cloned a human SEP1 gene as a GDNF-inducible gene using human neuroblastoma cells that express RET and GFRalpha1. The induction of the SEP1 gene showed two peaks at 0.5-2 h and 24-48 h after GDNF stimulation by Northern blotting and quantitative real-time reverse transcriptase polymerase chain reaction. The late induction was also confirmed at protein levels by Western blotting with anti-SEP1 antibody. Immunostaining revealed that the expression of the SEP1 protein was detected in cell body, elongated neurites and growth cone-like structure of neuroblastoma cells treated with GDNF. In addition, we found a high level of SEP1 expression in neurons of the dorsal root and superior cervical ganglia and motor neurons of the spinal cord of mice in which RET is also expressed. SEP1 was co-immunoprecipitated with alpha- and beta-tubulins from the lysate of mouse brain. These results thus suggested that SEP1 is a GDNF-inducible and microtubule-associated protein that may play a role in the nervous system.
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Affiliation(s)
- Y Shimoyama
- Department of Pathology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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Palapala VA, Aimi T, Inatomi S, Morinaga T. ITS-PCR-RFLP Method for Distinguishing Commercial Cultivars of Edible Mushroom, Flammulina velutipes. J Food Sci 2002. [DOI: 10.1111/j.1365-2621.2002.tb08763.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abdel-Wanis ME, Tsuchiya H, Minato H, Morinaga T, Yamamoto N, Tomita K. Bilateral symmetrical cysts in the upper tibiae in a skeletally mature patient: might they be simple bone cysts? J Orthop Sci 2002; 6:595-600. [PMID: 11793185 DOI: 10.1007/s007760100018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2001] [Accepted: 06/04/2001] [Indexed: 10/27/2022]
Abstract
A 55-year-old Japanese woman presented with right knee pain of 1-month duration. Radiological studies revealed bilateral mild osteoarthritic changes in the medial knee joint compartment and symmetrical cysts in the upper tibial metaphyses, extending to the epiphyses. Intraosseous ganglion was considered the most probable diagnosis. However, intraoperatively, serous fluid-filled cavities were recognized; these were curetted and filled with hydroxyapatite granules. Histopathological examination of the cyst wall revealed thin fibrous tissue formed of collagen fibers without a lining cell layer, with scattered lymphocytes, histiocytes, irregular masses of fibrin-like material, and periosteal osteocartilagenous callus formation; a picture compatible with simple bone cysts. Bilateral symmetrical cysts of the upper tibial metaphyses extending to the epiphyses are extremely rare. A literature review revealed that the age incidence, and bony locations of multiple and epiphyseal simple bone cysts are atypical in relation to the classic metaphyseal simple bone cysts. Also, multiple and epiphyseal simple bone cysts have a better prognosis than the classic metaphyseal ones. Four clinicoanatomic varieties of simple bone cysts are recognized; classic metaphyseal, nontubular, epiphyseal, and multiple.
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Affiliation(s)
- M E Abdel-Wanis
- Orthopaedic Department, Faculty of Medicine, Kanazawa University, Ishikawa, Japan
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Kawaguchi M, Miura Y, Ido A, Morinaga T, Sakata N, Oya T, Hashimoto-Tamaoki T, Sasahara M, Koizumi F, Tamaoki T. DNA/RNA-dependent ATPase activity is associated with ATBF1, a multiple homeodomain-zinc finger protein. Biochim Biophys Acta 2001; 1550:164-74. [PMID: 11755205 DOI: 10.1016/s0167-4838(01)00284-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The AT motif-binding factor 1 (ATBF1)-A is a large transcription factor containing four homeodomains and 23 zinc finger motifs. It has a number of motifs involved in transcriptional regulation, and in addition, several motifs found in enzymes, such as ATPases and helicases. In this study, we examined whether ATPase activity is associated with the ATBF1-A molecule. A 263-amino acid segment of the ATBF1-A molecule, termed AHZ, which contains the ATPase A-motif, homeodomain IV and zinc finger 21, was expressed in Escherichia coli in the form of glutathione S-transferase fusion protein and analyzed for ATPase activity. We found that AHZ was able to hydrolyze ATP with K(m) 10.6 microM and K(cat) 0.055 min(-1) at 5 mM Mg(2+) and pH 7.75. AHZ retained bacterial DNA and removal of the DNA resulted in 70% decrease in ATPase activity. The addition of double- or single-stranded DNAs restored 70-75% ATPase activity and that of RNA restored 50-55% activity. Site-directed mutagenesis of the A-motif resulted in 34% reduction of ATPase activity with no significant loss of bound DNA. In contrast, mutation of homeodomain IV and zinc finger 21 resulted in 90 and 80% reduction of ATPase, respectively, with the loss of the ability to bind to DNA and RNA. These results show that ATBF1 has at least one enzyme activity in addition to regulation of DNA transcription. The ATPase activity associated with ATBF1-A is DNA/RNA-dependent and unique in that it requires both homeodomain and zinc finger motifs.
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Affiliation(s)
- M Kawaguchi
- Department of Pathology, Faculty of Medicine, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan.
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Maeshima H, Okuno E, Aimi T, Morinaga T, Itoh T. An archaeal protein homologous to mammalian SRP54 and bacterial Ffh recognizes a highly conserved region of SRP RNA. FEBS Lett 2001; 507:336-40. [PMID: 11696367 DOI: 10.1016/s0014-5793(01)02996-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The gene encoding the 54 kDa protein of signal recognition particle (SRP54) in the hyperthermophilic archaeon Pyrococcus furiosus has been cloned and sequenced. Recombinant P. furiosus SRP54 (pf-SRP54) and the N-terminal G-domain and C-terminal M-domain (pf-SRP54M) of pf-SRP54 with an amino-terminal addition of six histidine residues were expressed in Escherichia coli and subjected to binding experiments for SRP RNA, non-conserved 213-nucleotide RNA (helices 1, 2, 3, 4 and 5) and conserved 107-nucleotide RNA (helices 6 and 8) from SRP RNA. The RNA binding properties of the purified protein were determined by filter binding assays. The histidine-tagged pf-SRP54M bound specifically to the conserved 107-nucleotide RNA in the absence of pf-SRP19, unlike the eukaryotic homologue, with an apparent binding constant (K) of 18 nM.
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Affiliation(s)
- H Maeshima
- School of Bioresources, Hiroshima Prefectural University, Shobara City, 727-0023, Hiroshima, Japan
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Natsugoe S, Yoshinaka H, Shimada M, Sakamoto F, Morinaga T, Nakano S, Kusano C, Baba M, Takao S, Aikou T. Number of lymph node metastases determined by presurgical ultrasound and endoscopic ultrasound is related to prognosis in patients with esophageal carcinoma. Ann Surg 2001; 234:613-8. [PMID: 11685023 PMCID: PMC1422084 DOI: 10.1097/00000658-200111000-00005] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To analyze the impact on prognosis of the number of lymph node metastases detected by ultrasound and endoscopic ultrasound in patients with esophageal carcinoma. SUMMARY BACKGROUND DATA Ultrasound and endoscopic ultrasound are useful for diagnosing tumor depth and lymph node metastasis in patients with esophageal carcinoma. However, the clinical significance of the number of lymph node metastases before surgery has not been elucidated. METHODS The authors evaluated lymph node metastases using preoperative ultrasound and endoscopic ultrasound in 329 consecutive patients who underwent esophagectomy with lymphadenectomy. TNM classification and one-to-one comparison of lymph node metastasis was performed between the preoperative and histologic diagnosis. The number of lymph node metastases was subdivided into four groups: zero, one to three, four to seven, and eight or more. RESULTS The accuracy of preoperative ultrasound and endoscopic ultrasound diagnosis exceeded 70% in each category of TNM classification. The incidence of lymph node metastasis determined by preoperative and histologic diagnosis was 69.0% (234/339) and 59.3% (201/339), respectively. The correlation between preoperative and histologic diagnosis was significant (P <.0001). According to the subdivision of number of lymph node metastases, the accuracy rates associated with nodal involvement of zero, one to three, four to seven, and eight or more were 83.8%, 59.7%, 43.3%, and 96.0%, respectively. The clinical outcome between ultrasound and endoscopic ultrasound diagnosis and histologic diagnosis in stage grouping was almost similar. The 5-year survival rates of patients with zero, one to three, four to seven, and eight or more lymph node metastases determined by ultrasound and endoscopic ultrasound were 53.3%, 33.8% 17.0%, and 0%, respectively. The differences among groups were statistically significant. The survival curves associated with preoperative and histologic diagnosis were similar. CONCLUSIONS Not only the stage grouping of TNM classification but also the number of lymph node metastases determined by ultrasound and endoscopic ultrasound before surgery may be useful for predicting prognosis in patients with esophageal carcinoma.
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Affiliation(s)
- S Natsugoe
- First Department of Surgery, Kagoshima University School of Medicine, Sakuragaoka, Kagoshima, Japan
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Yano K, Shibata O, Mizuno A, Kobayashi F, Higashio K, Morinaga T, Tsuda E. Immunological study on circulating murine osteoprotegerin/osteoclastogenesis inhibitory factor (OPG/OCIF): possible role of OPG/OCIF in the prevention of osteoporosis in pregnancy. Biochem Biophys Res Commun 2001; 288:217-24. [PMID: 11594776 DOI: 10.1006/bbrc.2001.5745] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Osteoprotegerin (OPG)/osteoclastogenesis inhibitory factor (OCIF) is a soluble member of the tumor necrosis factor receptor family and plays a crucial role in the negative regulation of osteoclastic bone resorption. We have immunized OPG/OCIF knockout mice with murine rOPG/rOCIF and established a panel of hybridomas producing monoclonal antibodies (mAbs) to murine rOPG/rOCIF. Utilizing the mAbs, we developed enzyme-linked immunosorbent assay (ELISA) systems: one detecting both homodimeric and monomeric forms of murine OPG/OCIF and the other detecting only dimeric form of murine OPG/OCIF. With the aid of these ELISA systems we showed that OPG/OCIF is present mainly as a monomer in murine blood. The concentration of OPG/OCIF in normal mouse sera was approximately 500 pg/ml and there was no statistical difference in the serum concentration of OPG/OCIF among genders, age, and strains. Interestingly, the concentration of circulating OPG/OCIF in mouse markedly increased during pregnancy. The result indicated that circulating OPG/OCIF plays an important role in the protection of bone from excess resorption during pregnancy in mammals.
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Affiliation(s)
- K Yano
- Research Institute of Life Science, Snow Brand Milk Products Company, Ltd., 519 Ishibashi-machi, Shimotsuga-gun, Tochigi 329-0512, Japan
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Tsuchiya H, Morinaga T, Taki J, Sumiya H, Matsui O, Tomita K. Effect of myocutaneous inflammatory changes caused by intra-arterial chemotherapy on the outcome of patients who undergo limb-saving surgery. Cancer 2001; 91:2447-53. [PMID: 11413537] [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: 02/20/2023]
Abstract
BACKGROUND This study examined the effect of myocutaneous inflammatory changes caused by intra-arterial chemotherapy on the outcome of patients who undergo limb-saving surgery. METHODS One hundred seven patients with malignant bone and soft tissue tumors were administered intra-arterial cisplatin and caffeine preoperatively with or without doxorubicin. Nine patients (8.4%) who had had myocutaneous inflammatory reactions were reviewed to determine the effects of this complication on limb-saving surgery. RESULTS The patients complained of unbearable and continuous pain while undergoing intra-arterial infusion. Gait disturbances and muscle weakness were caused by their severe regional pain, resulting in the use of crutches even before surgery. Extended areas of necrotic skin and muscle were resected simultaneously with limb-saving surgery on four patients. Myocutaneous necrosis in one patient, indurations in two patients, and flares in two patients were not treated surgically. Pain relief was provided to eight patients at some point. Four patients with extensive myocutaneous necrosis around the knee joint had restricted range of motion and poor functional results. Radionuclide angiography using 99m-Technetium-macroaggregated albumins was performed to evaluate the blood flow to the affected muscle and tumor. It showed marked increase of the radioisotope perfusion in the affected muscles but little uptake in the tumor. These results may suggest that the affected muscles diminish the effects of anticancer drugs on the tumors. CONCLUSIONS Myocutaneous inflammatory reactions should be prevented if possible to obtain good limb function and chemotherapeutic effects in patients who undergo intra-arterial chemotherapy. Resection of necrotic tissue is mandatory to relieve pain.
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Affiliation(s)
- H Tsuchiya
- Department of Orthopedic Surgery, School of Medicine, Kanazawa University, Kanazawa, Japan.
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Yagi S, Morinaga T, Nomura T, Takagishi T, Mizutani T, Kitagawa S, Ogoshi H. Solvent Effect on Helicity Induction of Zinc Bilinone Bearing a Chiral Auxiliary at the Helix Terminal. J Org Chem 2001; 66:3848-53. [PMID: 11375006 DOI: 10.1021/jo001770w] [Citation(s) in RCA: 20] [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: 11/30/2022]
Abstract
Solvent effects on helicity induction in zinc bilinone (ZnBL) derivatives bearing chiral auxiliaries at their 19-positions were investigated by using circular dichroic spectroscopy and (1)H NMR experiments. In ZnBLs 1 and 2, which possess (R)-2-methyl-1-phenylpropyloxy and (R)-1-phenylethyloxy groups at their 19-positions, respectively, the efficiency of helicity induction was significantly affected by employed solvents (78-95% de in 1 and 33-89% de in 2). The free energy changes of the P-M interconversion of 1 and 2 were linearly in proportion to reduction in polarizability of solvents: lower polarizability of solvents led to better efficiency of helicity induction in 1 and 2. With the support of the (1)H NMR study in addition to the molecular modeling previously reported, it was indicated that the solvophobic van der Waals interaction between the alkyl group in the chiral auxiliary and the A-ring of the bilinone skeleton in the preferred conformer plays a crucial role in determining the efficiency of helicity induction in 1 and 2.
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Affiliation(s)
- S Yagi
- Department of Applied Materials Science, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan.
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Aimi T, Kano S, Wang Q, Morinaga T. Molecular cloning of three genes encoding G protein alpha subunits in the white root rot fungus, Rosellinia necatrix. Biosci Biotechnol Biochem 2001; 65:678-82. [PMID: 11330689 DOI: 10.1271/bbb.65.678] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Three genes encoding G protein alpha subunits were cloned from the white root rot fungus, Rosellinia necatrix, and characterized. Only one copy of each gene was present in the genome. The protein sequences of Rga1, Rga2, and Rga3 are very similar to those of MagA, MagB and MagC of Magnaporthe grisea, respectively. Moreover, Rga1 is similar to Mod-D which is closely related to vegetative incompatibility in Podospora anserina, which suggests that Rga1 is important in the vegetative incompatibility reaction in R. necatrix. Reverse transcription PCR (RT-PCR) analysis of Rga1, Rga2, and Rga3 mRNA expression showed that the three genes were all transcribed in R. necatrix cells.
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Affiliation(s)
- T Aimi
- Department of Bioresource Development, Hiroshima Prefectural University, Shobara-shi, Japan
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Abstract
A determination was made of the nucleotide sequence of the 2719 bp region of a ribosomal protein gene cluster (PfeL32-PfeL19-PfL18-PfS5-PfL30) containing a 5S rRNA binding protein L18 homolog of hyperthermophilic archaea Pyrococcus furiosus. The organization of the archaeal ribosomal protein gene cluster is similar to that in the spc-operon of Escherichia coli (L6-L18-S5-L30-L15) but has two additional genes, namely those encoding PfeL32 and PfeL19, which were identified as extra proteins that are apparently not present in bacterial E. coli. Using an inducible expression system, P. furiosus mature PfL18 protein and a mutant PfL18 with the basic N-terminal amino acid region deleted were produced in large amounts in E. coli and Northwestern analysis showed the N-terminal region of PfL18, including the conserved arginine-rich region, to have a significant role in 5S rRNA-PfL18 interaction.
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MESH Headings
- Base Sequence
- Blotting, Northern
- Blotting, Western
- Cloning, Molecular
- Electrophoresis, Polyacrylamide Gel
- Escherichia coli/genetics
- Molecular Sequence Data
- Multigene Family
- Mutagenesis, Site-Directed
- Nucleic Acid Conformation
- Pyrococcus furiosus
- RNA, Ribosomal, 5S/genetics
- RNA, Ribosomal, 5S/metabolism
- RNA-Binding Proteins/genetics
- RNA-Binding Proteins/metabolism
- Ribosomal Proteins/genetics
- Ribosomal Proteins/metabolism
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
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Affiliation(s)
- H Furumoto
- School of Bioresources, Hiroshima Prefectural University, Shobara City, Hiroshima, Japan
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Abstract
A Northwestern analysis of Escherichia coli total proteins with radiolabeled 5S rRNA identified two novel 5S rRNA interacting proteins, a 70 kDa and a 37 kDa protein, and three ribosomal proteins reported on already. The N-terminal sequencing of the 70 kDa protein separated by SDS-PAGE from the high-salt-washed fraction of crude ribosome led to the discovery of a polypeptide identical in its first 10 amino acid residues to E. coli heat shock protein 70. The N-terminal eight amino acid sequence of the 37 kDa protein extracted from the high-salt-washed ribosome is identical to that of the ribosomal protein L2. In addition, the interaction of these proteins with 5S rRNA has been confirmed with gel mobility shift assays.
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Affiliation(s)
- S Okada
- School of Bioresources, Hiroshima Prefectural University, Shobara City, Hiroshima 727-0023, Japan
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Nakagawa N, Yasuda H, Yano K, Mochizuki SI, Kobayashi N, Fujimoto H, Shima N, Morinaga T, Chikazu D, Kawaguchi H, Higashio K. Basic fibroblast growth factor induces osteoclast formation by reciprocally regulating the production of osteoclast differentiation factor and osteoclastogenesis inhibitory factor in mouse osteoblastic cells. Biochem Biophys Res Commun 1999; 265:158-63. [PMID: 10548507 DOI: 10.1006/bbrc.1999.1601] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Basic fibroblast growth factor (bFGF) induced osteoclast formation in co-cultures of mouse spleen cells and osteoblasts. Osteoclastogenesis inhibitory factor (OCIF) and a selective cyclooxygenase-2 (COX-2) inhibitor, NS-398, abolished bFGF-induced osteoclast formation. bFGF did not affect spleen cells, but it did affect osteoblasts, to stimulate osteoclast formation. Northern blot analysis revealed that bFGF up-regulated the expression of osteoclast differentiation factor (ODF) and COX-2 and down-regulated the expression of OCIF in primary osteoblastic cells. NS-398 abolished the increase of ODF mRNA, but it had no effect on the decrease of OCIF mRNA. NS-398 suppressed the binding of (125)I-labeled OCIF to osteoblastic cells treated with bFGF. Enzyme-linked immunosorbent assay showed that bFGF inhibited OCIF production by osteoblastic cells, and the inhibition was not affected by NS-398. We conclude that bFGF induces osteoclast formation by stimulating ODF production through COX-2-mediated prostaglandin synthesis and by suppressing OCIF production through a mechanism independent of prostaglandin synthesis.
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Affiliation(s)
- N Nakagawa
- Research Institute of Life Science, Snow Brand Milk Products Co. Ltd. , Tochigi, 329-0512, Japan
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49
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Nakagawa N, Yasuda H, Yano K, Mochizuki SI, Kobayashi N, Fujimoto H, Yamaguchi K, Shima N, Morinaga T, Higashio K. Basic fibroblast growth factor inhibits osteoclast formation induced by 1alpha,25-dihydroxyvitamin D(3) through suppressing the production of osteoclast differentiation factor. Biochem Biophys Res Commun 1999; 265:45-50. [PMID: 10548488 DOI: 10.1006/bbrc.1999.1621] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Basic fibroblast growth factor (bFGF) inhibited osteoclast-like cell (OCL) formation in cocultures of mouse spleen cells with either osteoblasts or a stromal cell line, ST2, in the presence of 1alpha, 25-dihydroxyvitamin D(3) [1,25(OH)(2)D(3)]. bFGF directly acted on osteoblasts/stromal cells, but not osteoclast progenitors, to inhibit 1,25(OH)(2)D(3)-induced OCL formation. bFGF suppressed the mRNA expression of osteoclast differentiation factor (ODF) but did not affect that of osteoclastogenesis inhibitory factor (OCIF) in ST2 cells treated with 1,25(OH)(2)D(3) and dexamethasone. Enzyme-linked immunosorbent assay showed that bFGF hardly affected OCIF production in the treated ST2 cells. A genetically engineered soluble form of ODF, but not anti-OCIF neutralizing antibody, abolished bFGF-mediated inhibition of OCL formation. bFGF suppressed the binding of (125)I-labeled OCIF to both ST2 cells and osteoblasts treated with 1,25(OH)(2)D(3). These findings indicate that bFGF inhibits 1,25(OH)(2)D(3)-induced OCL formation via suppression of ODF production by osteoblasts/stromal cells.
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Affiliation(s)
- N Nakagawa
- Research Institute of Life Science, Snow Brand Milk Products Co. Ltd. , Tochigi, 329-0512, Japan
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Yasuda H, Shima N, Nakagawa N, Yamaguchi K, Kinosaki M, Goto M, Mochizuki SI, Tsuda E, Morinaga T, Udagawa N, Takahashi N, Suda T, Higashio K. A novel molecular mechanism modulating osteoclast differentiation and function. Bone 1999; 25:109-13. [PMID: 10423033 DOI: 10.1016/s8756-3282(99)00121-0] [Citation(s) in RCA: 203] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Osteoclasts, the multinucleated giant cells that resorb bone, develop from hematopoietic cells of the monocyte/ macrophage lineage. Osteoblasts, as well as bone marrow stromal cells, support osteoclast development through a mechanism of cell-to-cell interaction with osteoclast progenitors. We recently purified and molecularly cloned osteoclastogenesis inhibitory factor (OCIF), which was identical to osteoprotegerin (OPG). OPG/OCIF, a secreted member of the tumor necrosis factor (TNF) receptor family, inhibited differentiation and activation of osteoclasts. A single class of high-affinity binding sites for OPG/OCIF appeared on a mouse bone marrow stromal cell line, ST2, in response to 1alpha,25-dihydroxyvitamin D3 [1,25(OH)2D3] and dexamethasone (Dex). When the binding sites were occupied by OPG/OCIF, ST2 cells failed to support the osteoclast formation from spleen cells. To identify an OPG/OCIF ligand, we screened a cDNA expression library of ST2 cells treated with 1,25(OH)2D3 and Dex using OPG/OCIF as a probe. The cloned molecule was found to be a member of the membrane-associated TNF ligand family, and it induced osteoclast formation from mouse and human osteoclast progenitors in the presence of macrophage colony-stimulating factor (M-CSF) in vitro. Expression of its gene in osteoblasts/stromal cells was up-regulated by osteotropic factors, such as 1,25(OH)2D3, prostaglandin E2 (P(GE2), parathyroid hormone (PTH), and interleukin (IL)-11. A polyclonal antibody against this protein, as well as OPG/OCIF, negated not only the osteoclastogenesis induced by the protein, but also bone resorption elicited by various osteotropic factors in a fetal mouse long bone culture system. These findings led us to conclude that the protein is osteoclast differentiation factor (ODF), a long sought-after ligand that mediates an essential signal to osteoclast progenitors for their differentiation into active osteoclasts. Recent analyses of ODF receptor demonstrated that RANK, a member of the TNF receptor family, is the signaling receptor for ODF in osteoclastogenesis, and that OPG/OCIF acts as a decoy receptor for ODF to compete against RANK. The discovery of ODF, OPG/OCIF, and RANK opens a new era in the investigation of the regulation of osteoclast differentiation and function.
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Affiliation(s)
- H Yasuda
- Research Institute of Life Science, Snow Brand Milk Products Co. Ltd., Tochigi, Japan.
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