1
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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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2
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Kikuchi Y, Tokita S, Hirama T, Kochin V, Nakatsugawa M, Shinkawa T, Hirohashi Y, Tsukahara T, Hata F, Takemasa I, Sato N, Kanaseki T, Torigoe T. CD8 + T-cell Immune Surveillance against a Tumor Antigen Encoded by the Oncogenic Long Noncoding RNA PVT1. Cancer Immunol Res 2021; 9:1342-1353. [PMID: 34433589 DOI: 10.1158/2326-6066.cir-20-0964] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 04/11/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022]
Abstract
CD8+ T cells recognize peptides displayed by HLA class I molecules on cell surfaces, monitoring pathologic conditions such as cancer. Advances in proteogenomic analysis of HLA ligandomes have demonstrated that cells present a subset of cryptic peptides derived from noncoding regions of the genome; however, the roles of cryptic HLA ligands in tumor immunity remain unknown. In the current study, we comprehensively and quantitatively investigated the HLA class I ligandome of a set of human colorectal cancer and matched normal tissues, showing that cryptic translation products accounted for approximately 5% of the HLA class I ligandome. We also found that a peptide encoded by the long noncoding RNA (lncRNA) PVT1 was predominantly enriched in multiple colorectal cancer tissues. The PVT1 gene is located downstream of the MYC gene in the genome and is aberrantly overexpressed across a variety of cancers, reflecting its oncogenic property. The PVT1 peptide was recognized by patient CD8+ tumor-infiltrating lymphocytes, as well as peripheral blood mononuclear cells, suggesting the presence of patient immune surveillance. Our findings show that peptides can be translated from lncRNAs and presented by HLA class I and that cancer patient T cells are capable of sensing aberrations in noncoding regions of the genome.
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Affiliation(s)
- Yasuhiro Kikuchi
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Sapporo Dohto Hospital, Sapporo, Japan
| | - Tomomi Hirama
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Sapporo Dohto Hospital, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Department of Immunology, Nagoya University, Nagoya, Japan
| | - Munehide Nakatsugawa
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Department of Pathology, Tokyo Medical University Hachioji Medical Center, Hachioji, Tokyo, Japan
| | - Tomoyo Shinkawa
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | | | | | | | - Ichiro Takemasa
- Department of Surgery, Surgical Oncology and Science, Sapporo Medical University, Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Sapporo Dohto Hospital, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.
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3
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Abstract
Cancer stem cells (CSCs)/cancer-initiating cells (CICs) are characterized as a small population of cancer cells that have high tumor-initiating ability. CSCs/CICs are resistant to several cancer therapies, and eradication of CSCs/CICs is essential to cure cancer. How can we eradicate CSCs/CICs? Cytotoxic T lymphocytes (CTLs) might be a promising answer.
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Affiliation(s)
- Yoshihiko Hirohashi
- Department of Pathology; Sapporo Medical University School of Medicine; Sapporo, Japan
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4
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Subbotin M, Rozenkevich M, Gostev A, Bukin A, Khripunov V, Kochin V, Marunich S, Pak Y, Perevezentsev A, Sharova G. Concept Design of the Tritium Plant on the TRINITI Site for the Tokamak Ignitor Project Tasks. Fusion Science and Technology 2020. [DOI: 10.1080/15361055.2020.1711851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | - M. Rozenkevich
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - A. Gostev
- JST “SRC RF TRINITI” (State Corporation “Rosatom”), Moscow, Troitsk, Russia
| | - A. Bukin
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | | | - V. Kochin
- NRC “Kurchatov Institute,”, Moscow, Russia
| | - S. Marunich
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - Yu. Pak
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - A. Perevezentsev
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
| | - G. Sharova
- D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia
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5
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Kochin V, Nishikawa H. <Editors' Choice> Meddling with meddlers: curbing regulatory T cells and augmenting antitumor immunity. Nagoya J Med Sci 2019; 81:1-18. [PMID: 30962651 PMCID: PMC6433633 DOI: 10.18999/nagjms.81.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
CD4+ regulatory T cells (Tregs) expressing the transcription factor forkhead
box P3 (FoxP3) play an important role in self-tolerance and immune homeostasis. Tregs have
evolved to protect the host from aberrant immune responses against self-components and
collateral damages occurring in the process of defense against invading pathogens by
softening immune responses. However, they turned to be a scourge in malignant tumors by
not only allowing and promoting tumor growth but also suppressing effective antitumor
actions, both inherent (host’s immune surveillance) and extrinsic (anticancer therapy). An
increase in the number of Tregs infiltrating into tumor sites and a concomitant decrease
in the number of CD8+ cytotoxic T lymphocytes are associated with a poor
prognosis for various types of cancers, marking Tregs as notorious meddlers with an
effective antitumor response. Various cancer immunotherapy approaches are often dampened
by meddling Tregs, making them one of the major targets in the treatment of cancer. The
recent success of immune checkpoint inhibitors (ICIs) that target immune checkpoint
molecules expressed by Tregs or effector T cells implies, that “meddling with meddlers”
represents an effective strategy in cancer immunotherapy. However, clinical responses to
ICIs are effective and durable only in some patients with cancer, whereas more than half
of them do not show significant clinical improvement. This implies that a therapeutic
approach based on the use of a single ICI, or targeting Tregs alone, is insufficient,
highlighting the need for combinatorial approaches. With regard to antitumor immune
stimulation, several approaches, such as vaccination with peptides (or the corresponding
DNA) to stimulate antigen-presenting CD8+ T cells with tumor-specific
neoantigens, cancer/testis antigens, or cancer stem cell antigens, that eventually boost
effective cytotoxic antitumor responses are being tested. This review describes the
immunosuppressive physiology of Tregs and their meddling with the host’s antitumor
immunity; current and prospective approaches to curb Tregs; and approaches to augment
antitumor immunity.
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Affiliation(s)
- Vitaly Kochin
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroyoshi Nishikawa
- Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Division of Cancer Immunology, Research Institute/Exploratory Oncology Research & Clinical Trial Center (EPOC), National Cancer Center, Tokyo / Chiba, Japan
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6
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Hongo A, Kanaseki T, Tokita S, Kochin V, Miyamoto S, Hashino Y, Codd A, Kawai N, Nakatsugawa M, Hirohashi Y, Sato N, Torigoe T. Upstream Position of Proline Defines Peptide-HLA Class I Repertoire Formation and CD8 + T Cell Responses. J Immunol 2019; 202:2849-2855. [PMID: 30936292 DOI: 10.4049/jimmunol.1900029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/08/2019] [Indexed: 02/02/2023]
Abstract
Cytotoxic CD8+ T lymphocytes (CTLs) recognize peptides displayed by HLA class I molecules on cell surfaces, monitoring pathological conditions such as cancer. Difficulty in predicting HLA class I ligands is attributed to the complexity of the Ag processing pathway across the cytosol and the endoplasmic reticulum. By means of HLA ligandome analysis using mass spectrometry, we collected natural HLA class I ligands on a large scale and analyzed the source-protein sequences flanking the ligands. This comprehensive analysis revealed that the frequency of proline at amino acid positions 1-3 upstream of the ligands was selectively decreased. The depleted proline signature was the strongest among all the upstream and downstream profiles. Experiments using live cells demonstrated that the presence of proline at upstream positions 1-3 attenuated CTL responses against a model epitope. Other experiments, in which N-terminal-flanking Ag precursors were confined in the endoplasmic reticulum, demonstrated an inability to remove upstream prolines regardless of their positions, suggesting a need for synergistic action across cellular compartments for making the proline signature. Our results highlight, to our knowledge, a unique role and position of proline for inhibiting downstream epitope presentation, which provides a rule for defining natural peptide-HLA class I repertoire formation and CTL responses.
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Affiliation(s)
- Ayumi Hongo
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan;
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Vitaly Kochin
- Department of Immunology, Nagoya University, Nagoya 466-8550, Japan
| | - Sho Miyamoto
- Department of Oral Surgery, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan; and
| | - Yuiko Hashino
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Amy Codd
- Division of Cancer and Genetics, School of Medicine, Cardiff University, Cardiff CF14 4XN, Wales, United Kingdom
| | - Noriko Kawai
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Munehide Nakatsugawa
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
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7
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Miyamoto S, Kochin V, Kanaseki T, Hongo A, Tokita S, Kikuchi Y, Takaya A, Hirohashi Y, Tsukahara T, Terui T, Ishitani K, Hata F, Takemasa I, Miyazaki A, Hiratsuka H, Sato N, Torigoe T. The Antigen ASB4 on Cancer Stem Cells Serves as a Target for CTL Immunotherapy of Colorectal Cancer. Cancer Immunol Res 2018; 6:358-369. [PMID: 29371260 DOI: 10.1158/2326-6066.cir-17-0518] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/09/2017] [Accepted: 01/12/2018] [Indexed: 01/13/2023]
Abstract
Colorectal cancer consists of a small number of cancer stem cells (CSC) and many non-CSCs. Although rare in number, CSCs are a target for cancer therapy, because they survive conventional chemo- and radiotherapies and perpetuate tumor formation in vivo In this study, we conducted an HLA ligandome analysis to survey HLA-A24 peptides displayed by CSCs and non-CSCs of colorectal cancer. The analysis identified an antigen, ASB4, which was processed and presented by a CSC subset but not by non-CSCs. The ASB4 gene was expressed in CSCs of colorectal cancer, but not in cells that had differentiated into non-CSCs. Because ASB4 was not expressed by normal tissues, its peptide epitope elicited CD8+ cytotoxic T-cell (CTL) responses, which lysed CSCs of colorectal cancer and left non-CSCs intact. Therefore, ASB4 is a tumor-associated antigen that can elicit CTL responses specific to CSCs and can discriminate between two cellular subsets of colorectal cancer. Adoptively transferred CTLs specific for the CSC antigen ASB4 could infiltrate implanted colorectal cancer cell tumors and effectively prevented tumor growth in a mouse model. As the cancer cells implanted in these mice contained very few CSCs, the elimination of a CSC subset could be the condition necessary and sufficient to control tumor formation in vivo These results suggest that CTL-based immunotherapies against colorectal CSCs might be useful for preventing relapses. Cancer Immunol Res; 6(3); 358-69. ©2018 AACR.
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Affiliation(s)
- Sho Miyamoto
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Department of Oral Surgery, Sapporo Medical University, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.
| | - Ayumi Hongo
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Yasuhiro Kikuchi
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Akari Takaya
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | | | | | | | | | | | - Ichiro Takemasa
- Department of Surgery, Sapporo Medical University, Sapporo, Japan
| | - Akihiro Miyazaki
- Department of Oral Surgery, Sapporo Medical University, Sapporo, Japan
| | | | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
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8
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Kochin V, Kanaseki T, Tokita S, Miyamoto S, Shionoya Y, Kikuchi Y, Morooka D, Hirohashi Y, Tsukahara T, Watanabe K, Toji S, Kokai Y, Sato N, Torigoe T. HLA-A24 ligandome analysis of colon and lung cancer cells identifies a novel cancer-testis antigen and a neoantigen that elicits specific and strong CTL responses. Oncoimmunology 2017; 6:e1293214. [PMID: 28533942 DOI: 10.1080/2162402x.2017.1293214] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 02/01/2017] [Accepted: 02/04/2017] [Indexed: 01/05/2023] Open
Abstract
This study focused on HLA-A24 and comprehensively analyzed the ligandome of colon and lung cancer cells without the use of MHC-binding in silico prediction algorithms. Affinity purification using the antibody specific to HLA-A24 followed by LC-MS/MS sequencing was used to detect peptides, which harbored the known characteristics of HLA-A24 peptides in terms of length and anchor motifs. Ligandome analysis demonstrated the natural presentation of two different types of novel tumor-associated antigens. The ligandome contained a peptide derived from SUV39H2, a gene found to be expressed in a variety of cancers but not in normal tissues (except for the testis). The SUV39H2 peptide is immunogenic and elicits cytotoxic CD8+ T-cell (CTL) responses against cancer cells and is thus a novel cancer-testis antigen. Moreover, we found that microsatellite instability (MSI)-colon cancer cells displayed a neoepitope with an amino-acid substitution, while microsatellite stable (MSS)-colon and lung cancer cells displayed its counterpart peptide without the substitution. Structure modeling of peptide-HLA-A24 complexes predicted that the mutated residue at P8 was accessible to T-cell receptors. The neoepitope readily elicited CTL responses, which discriminated it from its wild-type counterpart, and the CTLs exhibited considerably high cytotoxicity against MSS-colon cancer cells carrying the responsible gene mutation. The specific and strong CTL lysis observed in this study fosters our understanding of immune surveillance against neoantigens.
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Affiliation(s)
- Vitaly Kochin
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Department of Immunology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Serina Tokita
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Sho Miyamoto
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Yosuke Shionoya
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Yasuhiro Kikuchi
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Daichi Morooka
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | | | | | - Kazue Watanabe
- Department of Pathology, Sapporo Medical University, Sapporo, Japan.,Research and Development Division, Medical and Biological Laboratories Company, Limited, Ina, Japan
| | - Shingo Toji
- Research and Development Division, Medical and Biological Laboratories Company, Limited, Ina, Japan
| | - Yasuo Kokai
- Department of Biomedical Engineering, Sapporo Medical University, Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
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9
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Shionoya Y, Kanaseki T, Miyamoto S, Tokita S, Hongo A, Kikuchi Y, Kochin V, Watanabe K, Horibe R, Saijo H, Tsukahara T, Hirohashi Y, Takahashi H, Sato N, Torigoe T. Loss of tapasin in human lung and colon cancer cells and escape from tumor-associated antigen-specific CTL recognition. Oncoimmunology 2017; 6:e1274476. [PMID: 28344889 DOI: 10.1080/2162402x.2016.1274476] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 11/30/2016] [Accepted: 12/15/2016] [Indexed: 01/05/2023] Open
Abstract
Cytotoxic T-lymphocytes (CTLs) lyse target cells after recognizing the complexes of peptides and MHC class I molecules (pMHC I) on cell surfaces. Tapasin is an essential component of the peptide-loading complex (PLC) and its absence influences the surface repertoire of MHC class I peptides. In the present study, we assessed tapasin expression in 85 primary tumor lesions of non-small cell lung cancer (NSCLC) patients, demonstrating that tapasin expression positively correlated with patient survival. CD8+ T-cell infiltration of tumor lesions was synergistically observed with tapasin expression and correlated positively with survival. To establish a direct link between loss of tapasin and CTL recognition in human cancer models, we targeted the tapasin gene by CRISPR/Cas9 system and generated tapasin-deficient variants of human lung as well as colon cancer cells. We induced the CTLs recognizing endogenous tumor-associated antigens (TAA), survivin or cep55, and they responded to each tapasin-proficient wild type. In contrast, both CTL lines ignored the tapasin-deficient variants despite their antigen expression. Moreover, the adoptive transfer of the cep55-specific CTL line failed to prevent tumor growth in mice bearing the tapasin-deficient variant. Loss of tapasin most likely limited antigen processing of TAAs and led to escape from TAA-specific CTL recognition. Tapasin expression is thus a key for CTL surveillance against human cancers.
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Affiliation(s)
- Yosuke Shionoya
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Sho Miyamoto
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Ayumi Hongo
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Yasuhiro Kikuchi
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Kazue Watanabe
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Research and Development Division, Medical and Biological Laboratories Company, Limited, Ina, Japan
| | - Ryota Horibe
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | - Hiroshi Saijo
- Department of Pathology, Sapporo Medical University, Sapporo, Japan; Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | | | | | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University , Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University , Sapporo, Japan
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10
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Kajiwara T, Tanaka T, Kukita K, Kutomi G, Saito K, Okuya K, Takaya A, Kochin V, Kanaseki T, Tsukahara T, Hirohashi Y, Torigoe T, Hirata K, Sato N, Tamura Y. Hypoxia augments MHC class I antigen presentation via facilitation of ERO1-α-mediated oxidative folding in murine tumor cells. Eur J Immunol 2016; 46:2842-2851. [PMID: 27667124 DOI: 10.1002/eji.201646525] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/29/2016] [Accepted: 09/23/2016] [Indexed: 12/24/2022]
Abstract
To establish an effective cancer immunotherapy, it is crucial that cancer cells present a cancer-specific antigen in a hypoxic area, a hallmark of the tumor microenvironment. Here, we show the impact of hypoxia on MHC class I antigen presentation in vitro and in vivo in murine tumors. Activation of antigen-specific CTLs by tumor cells that had been pre-incubated under a condition of hypoxia was enhanced compared with that by tumor cells pre-incubated under a condition of normoxia. Cell surface expression of MHC class I-peptide complex on the tumor cells was increased under a condition of hypoxia, thereby leading to higher susceptibility to specific CTLs. We show that the hypoxia-inducible ER-resident oxidase ERO1-α plays an important role in the hypoxia-induced augmentation of MHC class I-peptide complex expression. ERO1-α facilitated oxidative folding of MHC class I heavy chains, thereby resulting in the augmentation of cell surface expression of MHC class I-peptide complex under hypoxic conditions. These results suggest that since the expression of MHC class I-peptide complex is augmented in a hypoxic tumor microenvironment, strategies for inhibiting the function of regulatory T cells and myeloid-derived suppressor cells and/or immunotherapy with immune checkpoint inhibitors are promising for improving cancer immunotherapy.
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Affiliation(s)
- Toshimitsu Kajiwara
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tsutomu Tanaka
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Kazuharu Kukita
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Goro Kutomi
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Keita Saito
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koichi Okuya
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Akari Takaya
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tomohide Tsukahara
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Koichi Hirata
- Department of Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Yasuaki Tamura
- Department of Molecular Therapeutics, Center for Food and Medical Innovation, Institute for the Promotion of Business and Regional Collaboration, Hokkaido University, Sapporo, Japan
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11
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Tanaka T, Kutomi G, Kajiwara T, Kukita K, Kochin V, Kanaseki T, Tsukahara T, Hirohashi Y, Torigoe T, Okamoto Y, Hirata K, Sato N, Tamura Y. Cancer-associated oxidoreductase ERO1-α drives the production of VEGF via oxidative protein folding and regulating the mRNA level. Br J Cancer 2016; 114:1227-34. [PMID: 27100727 PMCID: PMC4891497 DOI: 10.1038/bjc.2016.105] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 08/09/2015] [Revised: 03/01/2016] [Accepted: 03/11/2016] [Indexed: 12/16/2022] Open
Abstract
Background: Endoplasmic reticulum disulfide oxidase 1-α (ERO1-α) is an oxidase that exists in the endoplasmic reticulum and has a role in the formation of disulfide bonds of secreted proteins and cell-surface proteins. Recently, we reported that ERO1-α is present in high levels in various types of tumours, and that ERO1-α is a novel factor of poor prognosis. However, how ERO1-α affects a tumour in vivo and why patients who have a tumour with a high expression level of ERO1-α have a poor prognosis are still unknown. Therefore, to clarify the mechanism, we investigated the effect of ERO1-α on a tumour from the point of view of angiogenesis. Methods: The effect of ERO1-α on tumour growth and angiogenesis was analysed by using non-obese diabetic-severe combined immunodeficient mice. The production of vascular endothelial growth factor (VEGF) in MDA-MB-231 cells with ERO1-α- overexpression or with ERO1-α knockdown was measured. The role of ERO1-α on VEGF expression was investigated. In triple-negative breast cancer cases, the relationship between expression of ERO1-α and angiogenesis was analysed. Results: We found that the expression of ERO1-α promoted tumour growth in a mouse study and angiogenesis. The effects of ERO1-α on angiogenesis were mediated via oxidative protein folding of VEGF and enhancement of VEGF mRNA expression by using MDA-MB-231. In triple-negative breast cancer cases, the expression of ERO1-α related to the number of the blood vessel. Furthermore, we found that ERO1-α was a poor prognosis factor in triple-negative breast cancer. Conclusions: Our study has established a novel link between expression of ERO1-α and secretion of VEGF, providing new evidence for the effectiveness of ERO1-α-targeted therapy in patients with ERO1-α-expressed cancer.
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Affiliation(s)
- Tsutomu Tanaka
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan.,The United Graduate School of Veterinary Sciences, Yamaguchi University, 1677-1, Yoshida, Yamaguchi 753-8511, Japan
| | - Goro Kutomi
- Department of Surgery, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Toshimitsu Kajiwara
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Kazuharu Kukita
- Department of Surgery, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Tomohide Tsukahara
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Yoshiharu Okamoto
- Joint Department of Veterinary Medicine, Tottori University, 4-101, Koyama-cho Minami 680-8550, Tottori, Japan
| | - Koichi Hirata
- Department of Surgery, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, S1W17, Chuo-ku, Sapporo 060-8556, Japan
| | - Yasuaki Tamura
- Center for Innovation and Business Promotion, Hokkaido University, N21W11, Kita-ku, Sapporo 001-0021, Japan
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12
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Sasaki T, Kanaseki T, Shionoya Y, Tokita S, Miyamoto S, Saka E, Kochin V, Takasawa A, Hirohashi Y, Tamura Y, Miyazaki A, Torigoe T, Hiratsuka H, Sato N. Microenvironmental stresses induce HLA-E/Qa-1 surface expression and thereby reduce CD8(+) T-cell recognition of stressed cells. Eur J Immunol 2016; 46:929-40. [PMID: 26711740 DOI: 10.1002/eji.201545835] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Revised: 11/29/2015] [Accepted: 12/23/2015] [Indexed: 02/04/2023]
Abstract
Hypoxia and glucose deprivation are often observed in the microenvironment surrounding solid tumors in vivo. However, how they interfere with MHC class I antigen processing and CD8(+) T-cell responses remains unclear. In this study, we analyzed the production of antigenic peptides presented by classical MHC class I in mice, and showed that it is quantitatively decreased in the cells exposed to either hypoxia or glucose deprivation. In addition, we unexpectedly found increased surface expression of HLA-E in human and Qa-1 in mouse tumor cells exposed to combined oxygen and glucose deprivation. The induced Qa-1 on the stressed tumor model interacted with an inhibitory NKG2/CD94 receptor on activated CD8(+) T cells and attenuated their specific response to the antigen. Our results thus suggest that microenvironmental stresses modulate not only classical but also nonclassical MHC class I presentation, and confer the stressed cells the capability to escape from the CD8(+) T-cell recognition.
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Affiliation(s)
- Takanori Sasaki
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
- Department of Oral Surgery, Sapporo Medical University, Sapporo, Japan
| | | | - Yosuke Shionoya
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
- Department of Respiratory Medicine and Allergology, Sapporo Medical University, Sapporo, Japan
| | - Serina Tokita
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Sho Miyamoto
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
- Department of Oral Surgery, Sapporo Medical University, Sapporo, Japan
| | - Eri Saka
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | - Akira Takasawa
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
| | | | - Yasuaki Tamura
- Department of Molecular Therapeutics, Center for Food and Medical Innovation, Hokkaido University, Sapporo, Japan
| | - Akihiro Miyazaki
- Department of Oral Surgery, Sapporo Medical University, Sapporo, Japan
| | | | | | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University, Sapporo, Japan
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13
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Hirohashi Y, Torigoe T, Tsukahara T, Kanaseki T, Kochin V, Sato N. Immune responses to human cancer stem-like cells/cancer-initiating cells. Cancer Sci 2015; 107:12-7. [PMID: 26440127 PMCID: PMC4724814 DOI: 10.1111/cas.12830] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [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: 07/06/2015] [Revised: 09/27/2015] [Accepted: 09/29/2015] [Indexed: 12/20/2022] Open
Abstract
Cancer stem‐like cells (CSC)/cancer‐initiating cells (CIC) are defined as minor subpopulations of cancer cells that are endowed with properties of higher tumor‐initiating ability, self‐renewal ability and differentiation ability. Accumulating results of recent studies have revealed that CSC/CIC are resistant to standard cancer therapies, including chemotherapy, radiotherapy and molecular targeting therapy, and eradiation of CSC/CIC is, thus, critical to cure cancer. Cancer immunotherapy is expected to become the “fourth” cancer therapy. Cytotoxic T lymphocytes (CTL) play an essential role in immune responses to cancers, and CTL can recognize CSC/CIC in an antigen‐specific manner. CSC/CIC express several tumor‐associated antigens (TAA), and cancer testis (CT) antigens are reasonable sources for CSC/CIC‐targeting immunotherapy. In this review article, we discuss CSC/CIC recognition by CTL, regulation of immune systems by CSC/CIC, TAA expression in CSC/CIC, and the advantages of CSC/CIC‐targeting immunotherapy.
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Affiliation(s)
- Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
| | - Tomohide Tsukahara
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
| | - Takayuki Kanaseki
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University School of Medicine, South-1 West-17, Chuo-Ku, Sapporo, 060-8556, Japan
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14
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Kochin V, Kanaseki T, Miyamoto S, Morooka D, Moniwa K, Ikeuchi Y, Takaya A, Hirohashi Y, Torigoe T, Sato N. Human cancer immunopeptidomics for efficient CTL immunotherapy. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv424.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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15
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Torigoe T, Hirohashi Y, Tsukahara T, Kanaseki T, Kochin V, Sato N. [The path to innovative drug development of cancer vaccine: from discovery of tumor antigens to clinical trials]. ACTA ACUST UNITED AC 2015; 37:90-5. [PMID: 24835136 DOI: 10.2177/jsci.37.90] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Tumor immunology has been advancing after the great discovery of tumor-specific antigen MAGE in 1991, and a number of tumor antigens have been reported to date. We have also found novel tumor antigens through various methodologies such as gene expression cloning, bioinformatics, reverse immunology, transcriptome analysis and peptidome analysis. Recently, we made a success of defining cancer stem cell-specific antigens. The fruits of our basic research have been applied to clinical trials of cancer vaccine. The long path and future perspectives of innovative immunotherapeutic drug development are described.
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Affiliation(s)
- Toshihiko Torigoe
- Department of Pathology 1, Sapporo Medical University School of Medicine
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16
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Hirohashi Y, Torigoe T, Mariya T, Kochin V, Saito T, Sato N. HLA class I as a predictor of clinical prognosis and CTL infiltration as a predictor of chemosensitivity in ovarian cancer. Oncoimmunology 2015; 4:e1005507. [PMID: 26155404 DOI: 10.1080/2162402x.2015.1005507] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Accepted: 12/30/2014] [Indexed: 10/23/2022] Open
Abstract
Cytotoxic T lymphocytes (CTLs) recognize the human leukocyte antigen (HLA) class I and antigenic peptide complex, and they play a crucial role in cancer immunity. Our recent study revealed that HLA class I downregulation is related to poorer prognosis and a low level of intratumoral CTLs is associated with platinum resistance, indicating the significance of immunological surveillance.
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Affiliation(s)
- Yoshihiko Hirohashi
- Department of Pathology; Sapporo Medical University School of Medicine ; Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology; Sapporo Medical University School of Medicine ; Sapporo, Japan
| | - Tasuku Mariya
- Department of Pathology; Sapporo Medical University School of Medicine ; Sapporo, Japan ; Department of Obstetrics and Gynecology; Sapporo Medical University School of Medicine ; Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology; Sapporo Medical University School of Medicine ; Sapporo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology; Sapporo Medical University School of Medicine ; Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology; Sapporo Medical University School of Medicine ; Sapporo, Japan
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17
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Abstract
Lamin A/C is part of the nuclear lamina, a meshwork of intermediate filaments underlying the inner nuclear membrane. The lamin network is anchoring a complex set of structural and linker proteins and is either directly or through partner proteins also associated or interacting with a number of signaling protein and transcription factors. During mitosis the nuclear lamina is dissociated by well established phosphorylation- dependent mechanisms. A-type lamins are, however, also phosphorylated during interphase. A recent study identified 20 interphase phosphorylation sites on lamin A/C and explored their functions related to lamin dynamics; movements, localization and solubility. Here we discuss these findings in the light of lamin functions in health and disease.
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Affiliation(s)
- Elin Torvaldson
- a Department of Biosciences; Åbo Akademi University ; Turku , Finland
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18
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Kochin V, Kanaseki T, Morooka D, Takaya A, Hirohashi Y, Kokai Y, Torigoe T, Sato N. P4-006 Natural peptidome presented by HLA-A24 of cancer and cancer stem cells. ACTA ACUST UNITED AC 2014; 37:348b. [PMID: 25297248 DOI: 10.2177/jsci.37.348b] [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] [Indexed: 11/15/2022]
Abstract
Circulating CD8+ T cells (CTL) survey the peptide/MHC class I complexes on cell surface to discriminate self and eliminate foreign/transformed cells. Thus, the MHC class I peptide repertoire directly influences cells fate, and provides information for immunotherapy strategy. Here we target HLA-A24 (A24), the most frequent serotype in Asia, and perform large-scale mass spectrometric profiling of natural peptides. Using the antibody specific to A24, we identified 264 peptides from colon (SW480, Colo320, HCT15/b2m) and 331 peptides from lung (LHK2, Sq-1) cancer cells. Although, known A24 binding anchors (Y/F at P2 and F/L/I at P9) are strongly conserved among the detected ligands, a subset of peptides with an unusual anchor (K/R at the C-terminal P9 or P10) is observed, suggesting diverse usage of anchors in certain types of cancer cells. Moreover, some peptides (and their genes) are exclusively expressed in cancer stem cells (cells able to exclude Hoechst dye). In summary, we identified approx. 500 non-overlapping natural peptides presented by A24 from colon and lung cancer cells. A combination of natural peptides specific to tumors could be an ideal way for a CTL-based immunotherapy.
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19
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Tsukahara T, Emori M, Murata K, Hirano T, Muroi N, Kyono M, Toji S, Watanabe K, Torigoe T, Kochin V, Asanuma H, Matsumiya H, Yamashita K, Himi T, Ichimiya S, Wada T, Yamashita T, Hasegawa T, Sato N. Specific targeting of a naturally presented osteosarcoma antigen, papillomavirus binding factor peptide, using an artificial monoclonal antibody. J Biol Chem 2014; 289:22035-47. [PMID: 24962571 DOI: 10.1074/jbc.m114.568725] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Osteosarcoma is a rare but highly malignant tumor occurring most frequently in adolescents. The prognosis of non-responders to chemotherapy is still poor, and new treatment modalities are needed. To develop peptide-based immunotherapy, we previously identified autologous cytotoxic T lymphocyte-defined osteosarcoma antigen papillomavirus binding factor (PBF) in the context of HLA-B55 and the cytotoxic T lymphocyte epitope (PBF A2.2) presented by HLA-A2. PBF and HLA class I are expressed in ∼90 and 70% of various sarcomas, respectively. However, the expression status of peptide PBF A2.2 presented by HLA-A2 on osteosarcoma cells has remained unknown because it is difficult to generate a specific probe that reacts with the HLA·peptide complex. For detection and qualification of the HLA-A*02:01·PBF A2.2 peptide complex on osteosarcoma cells, we tried to isolate a single chain variable fragment (scFv) antibody directed to the HLA-*A0201·PBF A2.2 complex using a naïve scFv phage display library. As a result, scFv clone D12 with high affinity (KD = 1.53 × 10(-9) M) was isolated. D12 could react with PBF A2.2 peptide-pulsed T2 cells and HLA-A2+PBF+ osteosarcoma cell lines and simultaneously demonstrated that the HLA·peptide complex was expressed on osteosarcoma cells. In conclusion, scFv clone D12 might be useful to select candidate patients for PBF A2.2 peptide-based immunotherapy and develop antibody-based immunotherapy.
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Affiliation(s)
| | - Makoto Emori
- Department of Orthopaedic Surgery, Sapporo Medial University School of Medicine, Sapporo 060-8543, Japan
| | - Kenji Murata
- From the Department of Pathology, Department of Orthopaedic Surgery, Sapporo Medial University School of Medicine, Sapporo 060-8543, Japan
| | | | | | | | - Shingo Toji
- Ina Laboratory, Medical and Biological Laboratories Company, Limited, Ina 396-0002, Japan
| | - Kazue Watanabe
- Ina Laboratory, Medical and Biological Laboratories Company, Limited, Ina 396-0002, Japan
| | | | | | - Hiroko Asanuma
- Division of Surgical Pathology, Sapporo Medical University Hospital, Sapporo 060-8543, Japan
| | - Hiroshi Matsumiya
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8543, Japan
| | - Keiji Yamashita
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8543, Japan
| | - Tetsuo Himi
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8543, Japan
| | - Shingo Ichimiya
- Department of Immunology, Frontier Medical Research Center, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Takuro Wada
- Department of Orthopaedic Surgery, Sapporo Medial University School of Medicine, Sapporo 060-8543, Japan
| | - Toshihiko Yamashita
- Department of Orthopaedic Surgery, Sapporo Medial University School of Medicine, Sapporo 060-8543, Japan
| | - Tadashi Hasegawa
- Division of Surgical Pathology, Sapporo Medical University Hospital, Sapporo 060-8543, Japan
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20
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Kochin V, Shimi T, Torvaldson E, Adam SA, Goldman A, Pack CG, Melo-Cardenas J, Imanishi SY, Goldman RD, Eriksson JE. Interphase phosphorylation of lamin A. J Cell Sci 2014; 127:2683-96. [PMID: 24741066 DOI: 10.1242/jcs.141820] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [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: 12/22/2022] Open
Abstract
Nuclear lamins form the major structural elements that comprise the nuclear lamina. Loss of nuclear structural integrity has been implicated as a key factor in the lamin A/C gene mutations that cause laminopathies, whereas the normal regulation of lamin A assembly and organization in interphase cells is still undefined. We assumed phosphorylation to be a major determinant, identifying 20 prime interphase phosphorylation sites, of which eight were high-turnover sites. We examined the roles of these latter sites by site-directed mutagenesis, followed by detailed microscopic analysis - including fluorescence recovery after photobleaching, fluorescence correlation spectroscopy and nuclear extraction techniques. The results reveal three phosphorylation regions, each with dominant sites, together controlling lamin A structure and dynamics. Interestingly, two of these interphase sites are hyper-phosphorylated in mitotic cells and one of these sites is within the sequence that is missing in progerin of the Hutchinson-Gilford progeria syndrome. We present a model where different phosphorylation combinations yield markedly different effects on the assembly, subunit turnover and the mobility of lamin A between, and within, the lamina, the nucleoplasm and the cytoplasm of interphase cells.
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Affiliation(s)
- Vitaly Kochin
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FIN-20521 Turku, Finland Department of Biosciences, Åbo Akademi University, FIN-20520 Turku, Finland Department of Pathology, Sapporo Medical University, Sapporo, Hokkaido 060-8556, Japan
| | - Takeshi Shimi
- Northwestern University Feinberg School of Medicine, Department of Cell and Molecular Biology, Chicago, IL 60611, USA
| | - Elin Torvaldson
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FIN-20521 Turku, Finland Department of Biosciences, Åbo Akademi University, FIN-20520 Turku, Finland
| | - Stephen A Adam
- Northwestern University Feinberg School of Medicine, Department of Cell and Molecular Biology, Chicago, IL 60611, USA
| | - Anne Goldman
- Northwestern University Feinberg School of Medicine, Department of Cell and Molecular Biology, Chicago, IL 60611, USA
| | - Chan-Gi Pack
- Cellular Informatics Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan
| | - Johanna Melo-Cardenas
- Northwestern University Feinberg School of Medicine, Department of Cell and Molecular Biology, Chicago, IL 60611, USA
| | - Susumu Y Imanishi
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FIN-20521 Turku, Finland
| | - Robert D Goldman
- Northwestern University Feinberg School of Medicine, Department of Cell and Molecular Biology, Chicago, IL 60611, USA
| | - John E Eriksson
- Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, FIN-20521 Turku, Finland Department of Biosciences, Åbo Akademi University, FIN-20520 Turku, Finland
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21
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Morita R, Nishizawa S, Torigoe T, Takahashi A, Tamura Y, Tsukahara T, Kanaseki T, Sokolovskaya A, Kochin V, Kondo T, Hashino S, Asaka M, Hara I, Hirohashi Y, Sato N. Heat shock protein DNAJB8 is a novel target for immunotherapy of colon cancer-initiating cells. Cancer Sci 2014; 105:389-95. [PMID: 24450541 PMCID: PMC4317808 DOI: 10.1111/cas.12362] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [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: 12/15/2013] [Revised: 01/16/2014] [Accepted: 01/20/2014] [Indexed: 12/24/2022] Open
Abstract
The aim of the present study was to establish cancer stem-like cell/cancer-initiating cell (CSC/CIC)-targeting immunotherapy. The CSC/CIC are thought to be essential for tumor maintenance, recurrence and distant metastasis. Therefore they are reasonable targets for cancer therapy. In the present study, we found that a heat shock protein (HSP) 40 family member, DnaJ (Hsp40) homolog, subfamily B, member 8 (DNAJB8), is preferentially expressed in CSC/CIC derived from colorectal cancer (CRC) cells rather than in non-CSC/CIC. Overexpression of DNAJB8 enhanced the expression of stem cell markers and tumorigenicity, indicating that DNAJB8 has a role in CRC CSC/CIC. A DNAJB8-specific cytotoxic T lymphocyte (CTL) response could be induced by a DNAJB8-derived antigenic peptide. A CTL clone specific for DNAJB8 peptide showed higher killing activity to CRC CSC/CIC compared with non-CSC/CIC, and CTL adoptive transfer into CRC CSC/CIC showed an antitumor effect in vivo. Taken together, the results indicate that DNAJB8 is expressed and has role in CRC CSC/CIC and that DNAJB8 is a novel target of CRC CSC/CIC-targeting immunotherapy.
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Affiliation(s)
- Rena Morita
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo, Japan
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22
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de Thonel A, Hazoumé A, Kochin V, Isoniemi K, Jego G, Fourmaux E, Hammann A, Mjahed H, Filhol O, Micheau O, Rocchi P, Mezger V, Eriksson JE, Rangnekar VM, Garrido C. Regulation of the proapoptotic functions of prostate apoptosis response-4 (Par-4) by casein kinase 2 in prostate cancer cells. Cell Death Dis 2014; 5:e1016. [PMID: 24457960 PMCID: PMC4040712 DOI: 10.1038/cddis.2013.532] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 11/16/2013] [Accepted: 11/28/2013] [Indexed: 01/07/2023]
Abstract
The proapoptotic protein, prostate apoptosis response-4 (Par-4), acts as a tumor suppressor in prostate cancer cells. The serine/threonine kinase casein kinase 2 (CK2) has a well-reported role in prostate cancer resistance to apoptotic agents or anticancer drugs. However, the mechanistic understanding on how CK2 supports survival is far from complete. In this work, we demonstrate both in rat and humans that (i) Par-4 is a new substrate of the survival kinase CK2 and (ii) phosphorylation by CK2 impairs Par-4 proapoptotic functions. We also unravel different levels of CK2-dependent regulation of Par-4 between species. In rats, the phosphorylation by CK2 at the major site, S124, prevents caspase-mediated Par-4 cleavage (D123) and consequently impairs the proapoptotic function of Par-4. In humans, CK2 strongly impairs the apoptotic properties of Par-4, independently of the caspase-mediated cleavage of Par-4 (D131), by triggering the phosphorylation at residue S231. Furthermore, we show that human Par-4 residue S231 is highly phosphorylated in prostate cancer cells as compared with their normal counterparts. Finally, the sensitivity of prostate cancer cells to apoptosis by CK2 knockdown is significantly reversed by parallel knockdown of Par-4. Thus, Par-4 seems a critical target of CK2 that could be exploited for the development of new anticancer drugs.
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Affiliation(s)
- A de Thonel
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - A Hazoumé
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - V Kochin
- Department of Pathology, Sapporo Medical University, Sapporo-shi, Hokkaido, Japan
| | - K Isoniemi
- 1] Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland [2] Department of Biosciences, Åbo Akademi University, Tykistökatu 6B, Turku, Finland
| | - G Jego
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - E Fourmaux
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - A Hammann
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - H Mjahed
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - O Filhol
- INSERM U1036, DSV/iRTSV/CEA, Grenoble, France
| | - O Micheau
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France
| | - P Rocchi
- 1] INSERM, U624 'Stress Cellulaire', Marseille, France [2] Aix-Marseille Université, Campus de Luminy, Marseille, France
| | - V Mezger
- 1] CNRS, UMR7216 Épigénétique et Destin Cellulaire, 35 rue Hélène Brion, Paris, France [2] University Paris Diderot, Sorbonne Paris Cité, 35 rue Hélène Brion, Paris, France
| | - J E Eriksson
- 1] Turku Centre for Biotechnology, University of Turku and Åbo Akademi University, Turku, Finland [2] Department of Biosciences, Åbo Akademi University, Tykistökatu 6B, Turku, Finland
| | - V M Rangnekar
- 1] Department of Radiation Medicine, Lexington, KY, USA [2] Department of Microbiology, Immunology and Molecular Genetics, Lexington, KY, USA [3] Graduate Center for Toxicology, Lexington, KY, USA [4] Markey Cancer Center, University of Kentucky, Lexington, KY, USA
| | - C Garrido
- 1] INSERM U866, Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [2] Faculty of Medicine and Pharmacy, University of Burgundy, Dijon, France [3] Anticancer Center Jean François Leclerc, Dijon, France
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23
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Saijo H, Hirohashi Y, Torigoe T, Kochin V, Takahashi H, Sato N. Cytotoxic T lymphocytes: the future of cancer stem cell eradication? Immunotherapy 2014; 5:549-51. [PMID: 23725275 DOI: 10.2217/imt.13.44] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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24
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Emori M, Tsukahara T, Murase M, Kano M, Murata K, Takahashi A, Kubo T, Asanuma H, Yasuda K, Kochin V, Kaya M, Nagoya S, Nishio J, Iwasaki H, Sonoda T, Hasegawa T, Torigoe T, Wada T, Yamashita T, Sato N. High expression of CD109 antigen regulates the phenotype of cancer stem-like cells/cancer-initiating cells in the novel epithelioid sarcoma cell line ESX and is related to poor prognosis of soft tissue sarcoma. PLoS One 2013; 8:e84187. [PMID: 24376795 PMCID: PMC3869840 DOI: 10.1371/journal.pone.0084187] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 11/13/2013] [Indexed: 11/19/2022] Open
Abstract
Epithelioid sarcoma (ES) is a relatively rare, highly malignant soft tissue sarcoma. The mainstay of treatment is resection or amputation. Currently other therapeutic options available for this disease are limited. Therefore, a novel therapeutic option needs to be developed. In the present study, we established a new human ES cell line (ESX) and analyzed the characteristics of its cancer stem-like cells/cancer-initiating cells (CSCs/CICs) based on ALDH1 activity. We demonstrated that a subpopulation of ESX cells with high ALDH1 activity (ALDH(high) cells) correlated with enhanced clonogenic ability, sphere-formation ability, and invasiveness in vitro and showed higher tumorigenicity in vivo. Next, using gene expression profiling, we identified CD109, a GPI-anchored protein upregulated in the ALDH(high) cells. CD109 mRNA was highly expressed in various sarcoma cell lines, but weakly expressed in normal adult tissues. CD109-positive cells in ESX predominantly formed spheres in culture, whereas siCD109 reduced ALDH1 expression and inhibited the cell proliferation in vitro. Subsequently, we evaluated the expression of CD109 protein in 80 clinical specimens of soft tissue sarcoma. We found a strong correlation between CD109 protein expression and the prognosis (P = 0.009). In conclusion, CD109 might be a CSC/CIC marker in epithelioid sarcoma. Moreover, CD109 is a promising prognostic biomarker and a molecular target of cancer therapy for sarcomas including ES.
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Affiliation(s)
- Makoto Emori
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Tomohide Tsukahara
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
- * E-mail:
| | - Masaki Murase
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Masanobu Kano
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Kenji Murata
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Akari Takahashi
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Terufumi Kubo
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Hiroko Asanuma
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Kazuyo Yasuda
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Mitsunori Kaya
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Satoshi Nagoya
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Jun Nishio
- Department of Orthopedic Surgery, Fukuoka University School of Medicine, Nanakuma, Jonan Ward, Fukuoka, Japan
| | - Hiroshi Iwasaki
- Department of Pathology, Fukuoka University School of Medicine, Nanakuma, Jonan Ward, Fukuoka, Japan
| | - Tomoko Sonoda
- Department of Public Health, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Tadashi Hasegawa
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Takuro Wada
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Toshihiko Yamashita
- Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-ku, Sapporo, Japan
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25
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Yasuda K, Torigoe T, Morita R, Kuroda T, Takahashi A, Matsuzaki J, Kochin V, Asanuma H, Hasegawa T, Saito T, Hirohashi Y, Sato N. Ovarian cancer stem cells are enriched in side population and aldehyde dehydrogenase bright overlapping population. PLoS One 2013; 8:e68187. [PMID: 23967051 PMCID: PMC3742724 DOI: 10.1371/journal.pone.0068187] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 05/28/2013] [Indexed: 12/18/2022] Open
Abstract
Cancer stem-like cells (CSCs)/cancer-initiaiting cells (CICs) are defined as a small population of cancer cells that have self-renewal capacity, differentiation potential and high tumor-initiating ability. CSCs/CICs of ovarian cancer have been isolated by side population (SP) analysis, ALDEFLUOR assay and using cell surface markers. However, these approaches are not definitive markers for CSCs/CICs, and it is necessary to refine recent methods for identifying more highly purified CSCs/CICs. In this study, we analyzed SP cells and aldehyde dehydrogenese bright (ALDHBr) cells from ovarian cancer cells. Both SP cells and ALDHBr cells exhibited higher tumor-initiating ability and higher expression level of a stem cell marker, sex determining region Y-box 2 (SOX2), than those of main population (MP) cells and ALDHLow cells, respectively. We analyzed an SP and ALDHBr overlapping population (SP/ALDHBr), and the SP/ALDHBr population exhibited higher tumor-initiating ability than that of SP cells or ALDHBr cells, enabling initiation of tumor with as few as 102 cells. Furthermore, SP/ADLHBr population showed higher sphere-forming ability, cisplatin resistance, adipocyte differentiation ability and expression of SOX2 than those of SP/ALDHLow, MP/ALDHBr and MP/ALDHLow cells. Gene knockdown of SOX2 suppressed the tumor-initiation of ovarian cancer cells. An SP/ALDHBr population was detected in several gynecological cancer cells with ratios of 0.1% for HEC—1 endometrioid adenocarcinoma cells to 1% for MCAS ovary mucinous adenocarcinoma cells. Taken together, use of the SP and ALDHBr overlapping population is a promising approach to isolate highly purified CSCs/CICs and SOX2 might be a novel functional marker for ovarian CSCs/CICs.
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Affiliation(s)
- Kazuyo Yasuda
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Toshihiko Torigoe
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
- * E-mail: (TT); (YH)
| | - Rena Morita
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Takahumi Kuroda
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Akari Takahashi
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Junichi Matsuzaki
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Vitaly Kochin
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Hiroko Asanuma
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Tadashi Hasegawa
- Department of Surgical Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
| | - Yoshihiko Hirohashi
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
- * E-mail: (TT); (YH)
| | - Noriyuki Sato
- Department of Pathology, Sapporo Medical University School of Medicine, Chuo-Ku, Sapporo, Japan
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26
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Mori T, Nishizawa S, Hirohashi Y, Torigoe T, Tamura Y, Takahashi A, Kochin V, Fujii R, Kondo T, Greene MI, Hara I, Sato N. Efficiency of G2/M-related tumor-associated antigen-targeting cancer immunotherapy depends on antigen expression in the cancer stem-like population. Exp Mol Pathol 2012; 92:27-32. [PMID: 22001602 DOI: 10.1016/j.yexmp.2011.09.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2011] [Accepted: 09/27/2011] [Indexed: 12/22/2022]
Abstract
The aim of this study was to establish a novel efficient cancer DNA vaccine approach. Many tumor-associated antigens (TAAs) have been reported; however, there is little information of the efficiency of each TAA. Normal cells barely undergo mitosis, whereas cancer cells divide frequently and grow well. Thus, G2/M-related antigens are cancer cell-specific and are regarded to be suitable candidates as targets of cancer immunotherapy. In this study, we compared the efficiencies of G2/M-related antigens including Birc5, Aurka, Nke2 and Plk1 by using a DNA vaccination model. Mice that had been immunized with G2/M-related antigens coding plasmid were challenged with CT26 colon cancer cells. Interestingly, Birc5- and Aurka-immunized mice showed an anti-tumor effect, whereas Nek2- and Plk1-immunized mice did not show any anti-tumor effect. We investigated the expression of G2/M-related antigens in cancer stem-like cell (CSC)/cancer-initiating cell (CIC) population to verify the difference in the anti-tumor effect. CSCs/CICs were isolated as side population (SP) cells using Hoechst 33342 dye from CT 26 cells. It was found that Birc5 and Aurka are expressed in both CSCs/CICs and non-CSCs/CICs (shared antigens), whereas Nek2 and Plk1 are expressed preferentially in non-CSCs/CICs (non-CSC antigens). Therefore, antigen expression in the CSC/CIC population might be related to the anti-tumor efficiency of cancer immunotherapy. Furthermore, we established a heat shock protein (Hsp90)-fused Birc5 plasmid to improve anti-cancer immunity. Birc5 fused to the N-terminal region of Hsp90 showed a stronger anti-tumor effect, whereas Birc5 fused to the C-terminal region of Hsp90 did not show enhancement compared with Birc5. These observations indicate that expression in the CSC/CIC population is essential to achieve tumor regression and that fusing antigens to the N-terminal region of Hsp90 enhances the anti-tumor effect.
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Affiliation(s)
- Takashi Mori
- Department of Pathology, Sapporo Medical University, School of Medicine, South-1 West-17, Chuo-Ku, Sapporo 060-8556, Japan
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27
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de Thonel A, Ferraris SE, Pallari HM, Imanishi SY, Kochin V, Hosokawa T, Hisanaga SI, Sahlgren C, Eriksson JE. Protein kinase Czeta regulates Cdk5/p25 signaling during myogenesis. Mol Biol Cell 2010; 21:1423-34. [PMID: 20200223 PMCID: PMC2854099 DOI: 10.1091/mbc.e09-10-0847] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Atypical protein kinase Cζ (PKCζ) is emerging as a mediator of differentiation. Here, we describe a critical role for PKCζ during myogenic differentiation. Our results identify PKCζ as a controller of myogenic differentiation by its regulation of Cdk5. Atypical protein kinase Cζ (PKCζ) is emerging as a mediator of differentiation. Here, we describe a novel role for PKCζ in myogenic differentiation, demonstrating that PKCζ activity is indispensable for differentiation of both C2C12 and mouse primary myoblasts. PKCζ was found to be associated with and to regulate the Cdk5/p35 signaling complex, an essential factor for both neuronal and myogenic differentiation. Inhibition of PKCζ activity prevented both myotube formation and simultaneous reorganization of the nestin intermediate filament cytoskeleton, which is known to be regulated by Cdk5 during myogenesis. p35, the Cdk5 activator, was shown to be a specific phosphorylation target of PKCζ. PKCζ-mediated phosphorylation of Ser-33 on p35 promoted calpain-mediated cleavage of p35 to its more active and stable fragment, p25. Strikingly, both calpain activation and the calpain-mediated cleavage of p35 were shown to be PKCζ-dependent in differentiating myoblasts. Overall, our results identify PKCζ as a controller of myogenic differentiation by its regulation of the phosphorylation-dependent and calpain-mediated p35 cleavage, which is crucial for the amplification of the Cdk5 activity that is required during differentiation.
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Affiliation(s)
- Aurélie de Thonel
- Turku Centre for Biotechnology, University of Turku and Abo Akademi University, 20521 Turku, Finland
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28
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Hyder CL, Pallari HM, Kochin V, Eriksson JE. Providing cellular signposts - Post-translational modifications of intermediate filaments. FEBS Lett 2008; 582:2140-8. [DOI: 10.1016/j.febslet.2008.04.064] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2008] [Revised: 04/29/2008] [Accepted: 04/30/2008] [Indexed: 10/22/2022]
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29
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Imanishi SY, Kochin V, Ferraris SE, de Thonel A, Pallari HM, Corthals GL, Eriksson JE. Reference-facilitated phosphoproteomics: fast and reliable phosphopeptide validation by microLC-ESI-Q-TOF MS/MS. Mol Cell Proteomics 2007; 6:1380-91. [PMID: 17510049 DOI: 10.1074/mcp.m600480-mcp200] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Recent advances in instrument control and enrichment procedures have enabled us to quantify large numbers of phosphoproteins and record site-specific phosphorylation events. An intriguing problem that has arisen with these advances is to accurately validate where phosphorylation events occur, if possible, in an automated manner. The problem is difficult because MS/MS spectra of phosphopeptides are generally more complicated than those of unmodified peptides. For large scale studies, the problem is even more evident because phosphorylation sites are based on single peptide identifications in contrast to protein identifications where at least two peptides from the same protein are required for identification. To address this problem we have developed an integrated strategy that increases the reliability and ease for phosphopeptide validation. We have developed an off-line titanium dioxide (TiO(2)) selective phosphopeptide enrichment procedure for crude cell lysates. Following enrichment, half of the phosphopeptide fractionated sample is enzymatically dephosphorylated, after which both samples are subjected to LC-MS/MS. From the resulting MS/MS analyses, the dephosphorylated peptide is used as a reference spectrum against the original phosphopeptide spectrum, in effect generating two peptide spectra for the same amino acid sequence, thereby enhancing the probability of a correct identification. The integrated procedure is summarized as follows: 1) enrichment for phosphopeptides by TiO(2) chromatography, 2) dephosphorylation of half the sample, 3) LC-MS/MS-based analysis of phosphopeptides and corresponding dephosphorylated peptides, 4) comparison of peptide elution profiles before and after dephosphorylation to confirm phosphorylation, and 5) comparison of MS/MS spectra before and after dephosphorylation to validate the phosphopeptide and its phosphorylation site. This phosphopeptide identification represents a major improvement as compared with identifications based only on single MS/MS spectra and probability-based database searches. We investigated an applicability of this method to crude cell lysates and demonstrate its application on the large scale analysis of phosphorylation sites in differentiating mouse myoblast cells.
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Affiliation(s)
- Susumu Y Imanishi
- Turku Centre for Biotechnology, University of Turku and Abo Akademi University, FIN-20521 Turku, Finland
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Abstract
While immobilized metal affinity chromatography (IMAC) has been widely used for affinity purification of phosphopeptides, the technique suffers from insufficient specificity. Therefore, there is an urgent need for IMAC optimization to yield the selectivity and sensitivity that is required for more challenging analyses. Recently, 2,5-dihydroxybenzoic acid (DHB) and phosphoric acid mixture has been reported as an efficient IMAC eluant. The disadvantage of DHB is that is not suitable for electrospray ionization-mass spectrometry. While further developing the IMAC elution protocol to overcome this problem, we noticed that DHB is not necessary and found a novel combination of phosphoric acid and acetonitrile to be more efficient. The purification efficacy of the novel protocol is superior to all previously described methods, while still being compatible with the most commonly used mass-spectrometric techniques in phosphoproteomics.
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Affiliation(s)
- Susumu Y Imanishi
- Turku Centre for Biotechnology, University of Turku and Abo Akademi University, Turku, Finland
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31
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Kochin V, Imanishi SY, Eriksson JE. Fast track to a phosphoprotein sketch – MALDI-TOF characterization of TLC-based tryptic phosphopeptide maps at femtomolar detection sensitivity. Proteomics 2006; 6:5676-82. [PMID: 17024653 DOI: 10.1002/pmic.200600457] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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: 11/10/2022]
Abstract
Tryptic phosphopeptide mapping by TLC on microcrystalline cellulose has been a convenient method to get a fast and highly reproducible overview of the number of phosphopeptides present in any given (32)P-labeled phosphoprotein. This method also provides an immediate presentation of the relative phosphorylation stoichiometry between individual phosphopeptides. However, so far, traditional tryptic phosphopeptide maps have not been useful for phosphoproteomics applications, as the S/N has been very poor, due to the large number of quenching substances and contaminants present on cellulose plates. In this study, we present a rapid and easy method for phosphopeptides identification from 2-D phosphopeptide maps (2-D-PPMs). We obtain improved sensitivity (femtomole levels) upon MALDI-TOF MS analysis of phosphopeptides extracted from 2-D-PPMs. Using this approach we could confidently characterize the major phosphorylation sites of in vivo and in vitro (32)P-labeled proteins.
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Affiliation(s)
- Vitaly Kochin
- Turku Centre for Biotechnology, University of Turku and Abo Akademi University, BioCity, Turku, Finland
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32
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Kochin V, Pallari HM, Pant H, Eriksson JE. Approaches to Study Posttranslational Regulation of Intermediate Filament Proteins. Methods Cell Biol 2004; 78:373-409. [PMID: 15646626 DOI: 10.1016/s0091-679x(04)78014-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Affiliation(s)
- Vitaly Kochin
- Turku Centre for Biotechnology University of Turku, FIN-20521 Turku, Finland
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