1
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Nagai K, Akimoto J, Fukami S, Saito Y, Ogawa E, Takanashi M, Kuroda M, Kohno M. Efficacy of interstitial photodynamic therapy using talaporfin sodium and a semiconductor laser for a mouse allograft glioma model. Sci Rep 2024; 14:9137. [PMID: 38644422 PMCID: PMC11033255 DOI: 10.1038/s41598-024-59955-y] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 04/17/2024] [Indexed: 04/23/2024] Open
Abstract
To investigate the therapeutic potential of photodynamic therapy (PDT) for malignant gliomas arising in unresectable sites, we investigated the effect of tumor tissue damage by interstitial PDT (i-PDT) using talaporfin sodium (TPS) in a mouse glioma model in which C6 glioma cells were implanted subcutaneously. A kinetic study of TPS demonstrated that a dose of 10 mg/kg and 90 min after administration was appropriate dose and timing for i-PDT. Performing i-PDT using a small-diameter plastic optical fiber demonstrated that an irradiation energy density of 100 J/cm2 or higher was required to achieve therapeutic effects over the entire tumor tissue. The tissue damage induced apoptosis in the area close to the light source, whereas vascular effects, such as fibrin thrombus formation occurred in the area slightly distant from the light source. Furthermore, when irradiating at the same energy density, irradiation at a lower power density for a longer period of time was more effective than irradiation at a higher power density for a shorter time. When performing i-PDT, it is important to consider the rate of delivery of the irradiation light into the tumor tissue and to set irradiation conditions that achieve an optimal balance between cytotoxic and vascular effects.
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Affiliation(s)
- Kenta Nagai
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Jiro Akimoto
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan.
| | - Shinjiro Fukami
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Yuki Saito
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Emiyu Ogawa
- Faculty of Science and Technology, Keio University, Kanagawa, Japan
| | | | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Michihiro Kohno
- Department of Neurosurgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
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Matsunaga K, Kikuno M, Sakamoto H, Okada H, Hashimoto T, Honda S, Matsubayashi J, Nagao T, Yamada Y, Horiuchi H, Kuroda M, Murayama S, Terashi H, Kohno M. A Cerebral Embolism Caused by a Malignant Peripheral Nerve Sheath Tumor in a Patient with Neurofibromatosis Type 1. Intern Med 2024:2996-23. [PMID: 38569908 DOI: 10.2169/internalmedicine.2996-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/05/2024] Open
Abstract
A 31-year-old man with neurofibromatosis type 1 (NF-1) had undergone resection of a malignant peripheral nerve sheath tumor (MPNST) on the buttock 3 months previously. He subsequently underwent mechanical thrombectomy for a hyperacute left middle cerebral artery embolism. Histopathologically, the emboli comprised neurofilament-positive pleomorphic tumor cells with geographic necrosis and conspicuous mitosis and were identified as MPNST. The patient died of respiratory failure due to lung MPNST metastasis on day 15 of hospitalization. To our knowledge, this is the first report of a spontaneous cerebral embolism due to MPNST in a NF-1 patient.
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Affiliation(s)
- Kyosuke Matsunaga
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
| | - Muneaki Kikuno
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
- Department of Neurology, Tokyo Medical University Hospital, Japan
| | - Hiroki Sakamoto
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
| | - Hirofumi Okada
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
| | - Takao Hashimoto
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
| | - Shogo Honda
- Department of Anatomic Pathology, Tokyo Medical University, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Japan
| | - Yuko Yamada
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Hajime Horiuchi
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Shigeo Murayama
- Department of Neuropathology (Brain Bank for Aging Research), Tokyo Metropolitan Institute for Geriatrics and Gerontology, Japan
| | - Hiroo Terashi
- Department of Neurology, Tokyo Medical University Hospital, Japan
| | - Michihiro Kohno
- Department of Neurosurgery, Tokyo Medical University Hospital, Japan
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Naito S, Nakamura I, Umezu T, Hata A, Madarame A, Uchida K, Koyama Y, Morise T, Yamaguchi H, Kono S, Sugimoto M, Kawai T, Harada Y, Kuroda M, Fukuzawa M, Itoi T. Effect of COVID-19 infection on the gastrointestinal tract considering preventive methods during endoscopic procedures. DEN Open 2024; 4:e290. [PMID: 37644959 PMCID: PMC10461040 DOI: 10.1002/deo2.290] [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] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
Objectives This study aimed to prevent the infection risk of environmental contamination by feces during endoscopic procedures. We evaluated the effect of coronavirus disease 2019 (COVID-19) on the gastrointestinal tract using fecal polymerase chain reaction (PCR) and examined risk factors affecting endoscopic procedures, to develop infection prevention strategies. Methods This single-center prospective observational study enrolled 32 patients diagnosed with COVID-19 at Tokyo Medical University Hospital between January and December 2022. We performed reverse transcriptase-PCR to detect severe acute respiratory syndrome coronavirus 2 in human stool specimens and evaluated the COVID-19 positivity rate in stool, the effect of vaccination on infection detection, and differences in positivity rates considering different patient backgrounds. Results Among the 32 nasal PCR-positive patients who underwent fecal PCR testing, the fecal PCR positivity rate was 21.8%. Compared to the negative cases, 71.4% vs. 32% were older than 65 years (p < 0.016), 71.4% vs. 0.8% (p < 0.001) had malignant tumors, the rate during BA.5 variant outbreaks was significantly higher (100% vs. 60% [p = 0.044]), and the rate of diarrheal symptoms was also higher (42.9% vs. 24%). The median collection period for fecal PCR-positive cases was 2 days after sampling. Conclusions The severe acute respiratory syndrome coronavirus 2 affects not only the upper respiratory tract but also the gastrointestinal tract. These findings may indicate the risk of digestive fluid infection in older patients with gastrointestinal symptoms and immunocompromised patients with malignant tumor comorbidities, especially during the early stages of viral infection. Therefore, it is advisable to establish a system to prevent infection by using personal protective equipment, including eye guards, in future endoscopic procedures.
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Affiliation(s)
- Sakiko Naito
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Itaru Nakamura
- Department of Infection Control and PreventionTokyo Medical UniversityTokyoJapan
| | - Tomohiro Umezu
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Akihiro Hata
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Akira Madarame
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Kumiko Uchida
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Yohei Koyama
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Takashi Morise
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Hayato Yamaguchi
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Shin Kono
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Mitsushige Sugimoto
- Department of Gastroenterological EndoscopyTokyo Medical UniversityTokyoJapan
| | - Takashi Kawai
- Department of Gastroenterological EndoscopyTokyo Medical UniversityTokyoJapan
| | - Yuichiro Harada
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Masahiko Kuroda
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Masakatsu Fukuzawa
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
| | - Takao Itoi
- Department of Gastroenterology and HepatologyTokyo Medical UniversityTokyoJapan
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Inagaki N, Okano T, Kobayashi M, Fujii M, Yazaki Y, Takei Y, Kosuge H, Suzuki S, Hayashi T, Kuroda M, Satomi K. Pediatric hypertrophic cardiomyopathy caused by a novel TNNI3 variant. Hum Genome Var 2024; 11:14. [PMID: 38548731 PMCID: PMC10978967 DOI: 10.1038/s41439-024-00272-1] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 02/14/2024] [Accepted: 02/21/2024] [Indexed: 04/01/2024] Open
Abstract
TNNI3 is a gene that causes hypertrophic cardiomyopathy (HCM). A 14-year-old girl who was diagnosed with nonobstructive HCM presented with cardiopulmonary arrest due to ventricular fibrillation. Genetic testing revealed a novel de novo heterozygous missense variant in TNNI3, NM_000363.5:c.583A>T (p.Ile195Phe), which was determined to be the pathogenic variant. The patient exhibited progressive myocardial fibrosis, left ventricular remodeling, and life-threatening arrhythmias. Genetic testing within families is useful for risk stratification in pediatric HCM patients.
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Affiliation(s)
- Natsuko Inagaki
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan.
- Department of Clinical Genetics Center, Tokyo Medical University, Tokyo, Japan.
| | - Tomoya Okano
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
| | | | - Masatsune Fujii
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
| | - Yoshinao Yazaki
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
| | - Yasuyoshi Takei
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
| | - Hisanori Kosuge
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
| | - Shinji Suzuki
- Department of Pediatrics and Adolescent Medicine, Tokyo Medical University, Tokyo, Japan
| | - Takeharu Hayashi
- Department of Physiology, Tokai University School of Medicine, Isehara, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Kazuhiro Satomi
- Department of Cardiology, Tokyo Medical University, Tokyo, Japan
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Yoshida M, Matsuzaki J, Fujita K, Kimura M, Umezu T, Tokuda N, Yamaguchi T, Kuroda M, Ochiya T, Saito Y, Kimura K. Plasma extracellular vesicle microRNAs reflecting the therapeutic effect of the CBP/β-catenin inhibitor PRI-724 in patients with liver cirrhosis. Sci Rep 2024; 14:6266. [PMID: 38491114 PMCID: PMC10943077 DOI: 10.1038/s41598-024-56942-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 03/12/2024] [Indexed: 03/18/2024] Open
Abstract
There is an unmet need for antifibrotic therapies to prevent the progression of liver cirrhosis. Previously, we conducted an exploratory trial to assess the safety and antifibrotic efficacy of PRI-724, a selective CBP/β-catenin inhibitor, in patients with liver cirrhosis. PRI-724 was well tolerated and exerted a potential antifibrotic effect. Here, we investigated whether the profiles of circulating microRNAs packaged in extracellular vesicles (EV-miRNAs) are associated with responses to liver fibrosis treatments. Eighteen patients who received PRI-724 for 12 weeks in a phase 1/2a study were classified as responders (n = 10) or non-responders (n = 8) based on changes in liver stiffness. Plasma samples were obtained before and after PRI-724 administration and the levels of EV-miRNAs were analyzed. Three miRNAs (miR-6510-5p, miR-6772-5p, and miR-4261) were identified as predictors of response or non-response to PRI-724, and the levels of three other miRNAs (miR-939-3p, miR-887-3p, and miR-7112-5p) correlated with the efficacy of treatment. Expression of miR-887-3p was detected in hepatocytes and was decreased significantly in liver tissue following PRI-724 treatment. In addition, transfection of a miR-887-3p mimic activated hepatic stellate cells. Thus, decreases in the miR-887-3p level in blood may reflect recovery from liver fibroses in patients with liver cirrhosis treated with PRI-724, although further validation studies are warranted to confirm this.
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Affiliation(s)
- Mayu Yoshida
- Division of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Juntaro Matsuzaki
- Division of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Masamichi Kimura
- Department of Hepatology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, 113-8677, Japan
| | - Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Noi Tokuda
- Division of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Tomoko Yamaguchi
- Division of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yoshimasa Saito
- Division of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan
| | - Kiminori Kimura
- Department of Hepatology, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, 3-18-22 Honkomagome, Bunkyo-ku, Tokyo, 113-8677, Japan
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Umezu T, Tanaka S, Kubo S, Enomoto M, Tamori A, Ochiya T, Taguchi Y, Kuroda M, Murakami Y. Characterization of circulating miRNAs in the treatment of primary liver tumors. Cancer Rep (Hoboken) 2024; 7:e1964. [PMID: 38146079 PMCID: PMC10849994 DOI: 10.1002/cnr2.1964] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 11/13/2023] [Accepted: 12/06/2023] [Indexed: 12/27/2023] Open
Abstract
BACKGROUND AND AIM Circulating micro RNAs (miRNAs) indicate clinical pathologies such as inflammation and carcinogenesis. In this study, we aimed to investigate whether miRNA expression level patterns in could be used to diagnose hepatocellular carcinoma (HCC) and biliary tract cancer (BTC), and the relationship miRNA expression patterns and cancer etiology. METHODS Patients with HCC and BTC with indications for surgery were selected for the study. Total RNA was extracted from the extracellular vesicle (EV)-rich fraction of the serum and analyzed using Toray miRNA microarray. Samples were divided into two cohorts in order of collection, the first 85 HCC were analyzed using a microarray based on miRBase ver.2.0 (hereafter v20 cohort), and the second 177 HCC and 43 BTC were analyzed using a microarray based on miRBase ver.21 (hereafter v21 cohort). RESULTS Using miRNA expression patterns, we found that HCC and BTC could be identified with an area under curve (AUC) 0.754 (v21 cohort). Patients with anti-hepatitis C virus (HCV) treatment (SVR-HCC) and without antiviral treatment (HCV-HCC) could be distinguished by an AUC 0.811 (v20 cohort) and AUC 0.798 (v21 cohort), respectively. CONCLUSIONS In this study, we could diagnose primary hepatic malignant tumor using miRNA expression patterns. Moreover, the difference of miRNA expression in SVR-HCC and HCV-HCC can be important information for enclosing cases that are prone to carcinogenesis after being cured with antiviral agents, but also for uncovering the mechanism for some carcinogenic potential remains even after persistent virus infection has disappeared.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Shogo Tanaka
- Department of Hepato‐Biliary‐Pancreatic SurgeryOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Shoji Kubo
- Department of Hepato‐Biliary‐Pancreatic SurgeryOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Masaru Enomoto
- Department of Hepatology, Graduate School of MedicineOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of MedicineOsaka Metropolitan University, Graduate School of MedicineOsakaJapan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical ScienceTokyo Medical UniversityTokyoJapan
| | | | - Masahiko Kuroda
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
| | - Yoshiki Murakami
- Department of Molecular PathologyTokyo Medical UniversityTokyoJapan
- Department of DentistryAsahi UniversityGifuJapan
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Takamizawa S, Kojima J, Umezu T, Kuroda M, Hayashi S, Maruta T, Okamoto A, Nishi H. miR‑146a‑5p and miR‑191‑5p as novel diagnostic marker candidates for ovarian clear cell carcinoma. Mol Clin Oncol 2024; 20:14. [PMID: 38264014 PMCID: PMC10804375 DOI: 10.3892/mco.2023.2712] [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: 03/13/2023] [Accepted: 08/11/2023] [Indexed: 01/25/2024] Open
Abstract
Ovarian cancer is a malignant gynecologic disease rarely diagnosed in the early stages. Among the various types of ovarian cancer, clear cell carcinoma has a poor prognosis due to its malignant potential. MicroRNAs (miRNAs/miRs) regulate gene expression in cells by suppressing the translation of target genes or by degrading the target mRNA. miRNAs are also secreted from the cells in the blood, binding to proteins or lipids and assisting in cell-cell communication. Therefore, serum miRNAs may be considered potential diagnostic biomarkers for ovarian cancer. The present study investigated and identified specific miRNAs associated with ovarian clear cell carcinoma and compared them to those in ovarian endometrioma samples and healthy controls. CA125, an ovarian tumor marker, did not differ between patients with ovarian clear cell carcinoma, endometriosis or healthy controls. Subsequently, four miRNAs (miR-146a-5p, miR-191-5p, miR-484 and miR-574-3p) were analyzed. The expression levels of miR-146a-5p and miR-191-5p were significantly increased in the serum samples from patients with ovarian clear cell carcinoma compared with those in the healthy controls, but there was no significant difference compared with in patients with endometriosis. Furthermore, the bioinformatics analysis showed that CCND2 and NOTCH2 were the candidate target genes of miR-146a-5p and miR-191-5p. In conclusion, the results of the present study demonstrated that miR-146a-5p and miR-191-5p may be useful as early and non-invasive diagnostic tools in ovarian clear cell carcinoma. These miRNAs can help in distinguishing between ovarian clear cell carcinoma and ovarian endometrioma. To the best of our knowledge, no previous studies have screened any candidates specifically for ovarian clear cell carcinoma.
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Affiliation(s)
- Shigeatsu Takamizawa
- Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo 160-0023, Japan
| | - Junya Kojima
- Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo 160-0023, Japan
| | - Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Shigehiro Hayashi
- Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo 160-0023, Japan
| | - Takenori Maruta
- Department of Obstetrics and Gynecology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Aikou Okamoto
- Department of Obstetrics and Gynecology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hirotaka Nishi
- Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo 160-0023, Japan
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Oikawa K, Kuroda M, Ehata S. Suppression of antitumor cytokine IL‑24 by PRG4 and PAI‑1 may promote myxoid liposarcoma cell survival. Biomed Rep 2023; 19:60. [PMID: 37614985 PMCID: PMC10442737 DOI: 10.3892/br.2023.1642] [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: 01/24/2023] [Accepted: 06/27/2023] [Indexed: 08/25/2023] Open
Abstract
Suppression of the antitumor cytokine interleukin-24 (IL-24) is critical for the survival of myxoid liposarcoma (MLS) cells. It has been previously demonstrated by the authors that an MLS-specific chimeric oncoprotein, translocated in liposarcoma-CCAAT/enhancer-binding protein homologous protein (TLS-CHOP), supresses IL24 mRNA expression via induction of proteoglycan 4 (PRG4) to sustain MLS cell proliferation. However, IL-24 has also been revealed to be suppressed by the ubiquitin-proteasome system in human ovarian and lung cancer cells. Therefore, the aim of the present study was to elucidate the mechanism of IL-24 suppression in MLS cells. The results revealed that the proteasome inhibitor, MG-132, induced cell death in MLS cells in vitro; this effect was reduced following IL-24 knockdown. This indicated that proteasomal degradation of IL-24 may be an important process for MLS cell survival. In addition, it was also previously revealed by the authors that knockdown of plasminogen activator inhibitor-1 (PAI-1), a TLS-CHOP downstream molecule, suppressed the growth of MLS cells, thus instigating the investigation of the effect of PAI-1 on IL-24 expression in MLS cells. Double knockdown of PAI-1 and IL-24 negated the growth-suppressive effect of PAI-1 single knockdown in MLS cells. Interestingly, PAI-1 single knockdown did not increase the mRNA expression of IL24, but it did increase the protein abundance of IL-24, indicating that PAI-1 suppressed IL-24 expression by promoting its proteasomal degradation. Moreover, treatment of MLS cells with a PAI-1 inhibitor, TM5275, induced IL-24 protein expression and apoptosis. Collectively, the results of the present as well as previous studies indicated that IL-24 expression may be suppressed at the transcriptional level by PRG4 and at the protein level by PAI-1 in MLS cells. Accordingly, PAI-1 may represent an effective therapeutic target for MLS treatment.
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Affiliation(s)
- Kosuke Oikawa
- Department of Pathology, School of Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan
| | - Shogo Ehata
- Department of Pathology, School of Medicine, Wakayama Medical University, Wakayama 641-8509, Japan
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Kurata A, Harada Y, Fujita K, Ohno SI, Takanashi M, Yoshizawa S, Nagashima Y, Nagao T, Yamaguchi J, Kuroda M. Smooth muscle differentiation of coronary intima in autopsy tissues after sirolimus-eluting stent implantation. Cardiovasc Pathol 2023; 66:107554. [PMID: 37321466 DOI: 10.1016/j.carpath.2023.107554] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/22/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND In coronary atherosclerotic disease, the proliferation of intimal smooth muscle cells (SMCs) is regarded as beneficial with respect to stable and unstable plaques, but is thought detrimental in discussions on coronary stent restenosis. To resolve this discrepancy, we focused on the quality, not quantity, of intimal SMCs in coronary atherosclerotic disease. METHODS Autopsied coronary artery specimens from seven patients implanted with bare metal stents (BMS), three with paclitaxel-eluting stents (PES), and 10 with sirolimus (rapamycin)-eluting stents (SES) were immunostained for SMC markers. Cultured human coronary artery SMCs were also treated with sirolimus and paclitaxel. RESULTS Intimal SMC differentiation, estimated by the ratio of h-caldesmon+ cells to α-smooth muscle actin+ (α-SMA+) cells, was significantly increased whereas dedifferentiation, estimated from the ratio of fibroblast activation protein alpha (FAPα)+ cells to α-SMA+ cells, was significantly decreased, in tissues of SES compared with BMS cases. No difference in the degree of differentiation was found between PES and BMS cases or between the three groups in nonstented arteries used as controls. Correlation analyses for each field of view revealed a significant positive correlation between h-caldesmon and calponin staining but significant negative correlations with FAPα staining in α-SMA+ cells. Cultured SMCs were shorter (dedifferentiated) and showed an increased FAPα/α-SMA protein when treated with paclitaxel, whereas they became elongated (differentiated) and showed increased calponin/α-SMA proteins with sirolimus. CONCLUSIONS The SMCs of the coronary intima may differentiate after SES implantation. SMC differentiation may explain both the plaque stabilization and reduced risk of reintervention associated with SES.
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Affiliation(s)
- Atsushi Kurata
- Department of Pathology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan.
| | - Yuichiro Harada
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Saeko Yoshizawa
- Department of Surgical Pathology, Tokyo Women's Medical University Hospital, Shinjuku, Tokyo, Japan
| | - Yoji Nagashima
- Department of Surgical Pathology, Tokyo Women's Medical University Hospital, Shinjuku, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Junichi Yamaguchi
- Department of Cardiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
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10
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Matsubara S, Saito A, Tokuyama N, Muraoka R, Hashimoto T, Satake N, Nagao T, Kuroda M, Ohno Y. Recurrence prediction in clear cell renal cell carcinoma using machine learning of quantitative nuclear features. Sci Rep 2023; 13:11035. [PMID: 37419897 PMCID: PMC10328910 DOI: 10.1038/s41598-023-38097-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 07/03/2023] [Indexed: 07/09/2023] Open
Abstract
The recurrence of non-metastatic renal cell carcinoma (RCC) may occur early or late after surgery. This study aimed to develop a recurrence prediction machine learning model based on quantitative nuclear morphologic features of clear cell RCC (ccRCC). We investigated 131 ccRCC patients who underwent nephrectomy (T1-3N0M0). Forty had recurrence within 5 years and 22 between 5 and 10 years; thirty-seven were recurrence-free during 5-10 years and 32 were for more than 10 years. We extracted nuclear features from regions of interest (ROIs) using a digital pathology technique and used them to train 5- and 10-year Support Vector Machine models for recurrence prediction. The models predicted recurrence at 5/10 years after surgery with accuracies of 86.4%/74.1% for each ROI and 100%/100% for each case, respectively. By combining the two models, the accuracy of the recurrence prediction within 5 years was 100%. However, recurrence between 5 and 10 years was correctly predicted for only 5 of the 12 test cases. The machine learning models showed good accuracy for recurrence prediction within 5 years after surgery and may be useful for the design of follow-up protocols and patient selection for adjuvant therapy.
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Affiliation(s)
- Shuya Matsubara
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Akira Saito
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Naoto Tokuyama
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Ryu Muraoka
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Takeshi Hashimoto
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Naoya Satake
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, 6-1-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan
| | - Masahiko Kuroda
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan.
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-Ku, Tokyo, 160-8402, Japan.
| | - Yoshio Ohno
- Department of Urology, Tokyo Medical University Hospital, 6-7-1, Nishi-Shinjuku, Shinjuku-Ku, Tokyo, 160-0023, Japan.
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11
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Miyagi T, Ueda K, Sugimoto M, Yagi T, Ito D, Yamazaki R, Narumi S, Hayamizu Y, Uji-i H, Kuroda M, Kanekura K. Differential toxicity and localization of arginine-rich C9ORF72 dipeptide repeat proteins depend on de-clustering of positive charges. iScience 2023; 26:106957. [PMID: 37332605 PMCID: PMC10275993 DOI: 10.1016/j.isci.2023.106957] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/30/2023] [Accepted: 05/22/2023] [Indexed: 06/20/2023] Open
Abstract
Arginine-rich dipeptide repeat proteins (R-DPRs), poly(PR) and poly(GR), translated from the hexanucleotide repeat expansion in the amyotrophic lateral sclerosis (ALS)-causative C9ORF72 gene, contribute significantly to pathogenesis of ALS. Although both R-DPRs share many similarities, there are critical differences in their subcellular localization, phase separation, and toxicity mechanisms. We analyzed localization, protein-protein interactions, and phase separation of R-DPR variants and found that sufficient segregation of arginine charges is necessary for nucleolar distribution. Proline not only efficiently separated the charges, but also allowed for weak, but highly multivalent binding. In contrast, because of its high flexibility, glycine cannot fully separate the charges, and poly(GR) behaves similarly to the contiguous arginines, being trapped in the cytoplasm. We conclude that the amino acid that spaces the arginine charges determines the strength and multivalency of the binding, leading to differences in localization and toxicity mechanisms.
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Affiliation(s)
- Tamami Miyagi
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
- Department of Pharmacology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Koji Ueda
- Cancer Proteomics Group, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo 135-8550, Japan
| | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
- Institute for Advanced Biosciences, KEIO University, 246-2 Mizukami, Kakuganji, Tsuruoka, Yamagata 997-0052, Japan
| | - Takuya Yagi
- Department of Neurology, KEIO University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Daisuke Ito
- Department of Physiology, KEIO University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Rio Yamazaki
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
- Department of Pharmacology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Satoshi Narumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo 157-8535, Japan
| | - Yuhei Hayamizu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Hiroshi Uji-i
- Department of Nanomaterials and Nanoscopy, Research Institute for Electronic Science, Hokkaido University, Kita 10 Nishi 20, North Ward, Sapporo, Hokkaido 001-0020, Japan
- Department of Chemistry, KU Leuven Celestijnenlaan 200F, Heverlee, 3001 Leuven, Belgium
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
- Department of Pharmacology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo 160-8402, Japan
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12
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Shen B, Saito A, Ueda A, Fujita K, Nagamatsu Y, Hashimoto M, Kobayashi M, Mirza AH, Graf HP, Cosatto E, Hazama S, Nagano H, Sato E, Matsubayashi J, Nagao T, Cheng E, Hoda SA, Ishikawa T, Kuroda M. Development of multiple AI pipelines that predict neoadjuvant chemotherapy response of breast cancer using H&E-stained tissues. J Pathol Clin Res 2023; 9:182-194. [PMID: 36896856 PMCID: PMC10073928 DOI: 10.1002/cjp2.314] [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: 09/25/2022] [Revised: 01/23/2023] [Accepted: 02/10/2023] [Indexed: 03/11/2023]
Abstract
In recent years, the treatment of breast cancer has advanced dramatically and neoadjuvant chemotherapy (NAC) has become a common treatment method, especially for locally advanced breast cancer. However, other than the subtype of breast cancer, no clear factor indicating sensitivity to NAC has been identified. In this study, we attempted to use artificial intelligence (AI) to predict the effect of preoperative chemotherapy from hematoxylin and eosin images of pathological tissue obtained from needle biopsies prior to chemotherapy. Application of AI to pathological images typically uses a single machine-learning model such as support vector machines (SVMs) or deep convolutional neural networks (CNNs). However, cancer tissues are extremely diverse and learning with a realistic number of cases limits the prediction accuracy of a single model. In this study, we propose a novel pipeline system that uses three independent models each focusing on different characteristics of cancer atypia. Our system uses a CNN model to learn structural atypia from image patches and SVM and random forest models to learn nuclear atypia from fine-grained nuclear features extracted by image analysis methods. It was able to predict the NAC response with 95.15% accuracy on a test set of 103 unseen cases. We believe that this AI pipeline system will contribute to the adoption of personalized medicine in NAC therapy for breast cancer.
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Affiliation(s)
- Bin Shen
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.,Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Akira Saito
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.,Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Ai Ueda
- Department of Breast Oncology and Surgery, Tokyo Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yui Nagamatsu
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Mikihiro Hashimoto
- Research and Development Division, Chi Corporation, Shinjuku-ku, Tokyo, Japan
| | - Masaharu Kobayashi
- Research and Development Division, Chi Corporation, Shinjuku-ku, Tokyo, Japan
| | - Aashiq H Mirza
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Hans Peter Graf
- Department of Machine Learning, NEC Labs America Inc., Princeton, NJ, USA
| | - Eric Cosatto
- Department of Machine Learning, NEC Labs America Inc., Princeton, NJ, USA
| | - Shoichi Hazama
- Department of Translational Research and Development Therapeutics against Cancer, School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Graduate School of Medicine, Yamaguchi University, Ube, Yamaguchi, Japan
| | - Eiichi Sato
- Department of Pathology, Institute of Medical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Esther Cheng
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York Presbyterian Hospital, New York, NY, USA
| | - Syed Af Hoda
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York Presbyterian Hospital, New York, NY, USA
| | - Takashi Ishikawa
- Department of Breast Oncology and Surgery, Tokyo Medical University Hospital, Shinjuku-ku, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan.,Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
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13
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Saito S, Ohno SI, Harada Y, Kanno Y, Kuroda M. MiR-34a induces myofibroblast differentiation from renal fibroblasts. Clin Exp Nephrol 2023; 27:411-418. [PMID: 36808381 DOI: 10.1007/s10157-023-02329-x] [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: 12/05/2022] [Accepted: 02/07/2023] [Indexed: 02/21/2023]
Abstract
BACKGROUND Renal fibrosis is the common outcome of progressive kidney diseases. To avoid dialysis, the molecular mechanism of renal fibrosis must be explored further. MicroRNAs play key roles in renal fibrosis. MiR-34a is a transcriptional target of p53, which regulates the cell cycle and apoptosis. Previous studies demonstrated that miR-34a promotes renal fibrosis. However, the distinct roles of miR-34a in renal fibrosis have not been fully elucidated. Here, we identified the roles of miR-34a in renal fibrosis. METHOD We first analyzed p53 and miR-34a expression in kidney tissues in s UUO (unilateral ureteral obstruction) mouse model. Then, to confirm the effects of miR-34a in vitro, we transfected a miR-34a mimic into a kidney fibroblast cell line (NRK-49F) and analyzed. RESULTS We found that the expression of p53 and miR-34a was upregulated after UUO. Furthermore, after transfection of the miR-34a mimic into kidney fibroblasts, the expression of α-SMA was upregulated dramatically. In addition, α-SMA upregulation was greater upon transfection of the miR-34a mimic than upon treatment with TGF-β1. Moreover, high expression of Acta2 was maintained despite sufficient removal of the miR-34a mimic by changing the medium 4 times during the 9-day culture. After transfection of the miR-34a mimic into kidney fibroblasts, we did not detect phospho-SMAD2/3 by immunoblotting analysis. CONCLUSION Our study revealed that miR-34a induces myofibroblast differentiation from renal fibroblasts. Moreover, the miR-34a-induced upregulation of α-SMA was independent of the TGF-β/SMAD signaling pathway. In conclusion, our study indicated that the p53/miR-34a axis promotes the development of renal fibrosis.
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Affiliation(s)
- Suguru Saito
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Yuichirou Harada
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshihiko Kanno
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Deparatment of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
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14
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Katahira Y, Murakami F, Inoue S, Miyakawa S, Sakamoto E, Furusaka Y, Watanabe A, Sekine A, Kuroda M, Hasegawa H, Mizoguchi I, Yoshimoto T. Protective effects of conditioned media of immortalized stem cells from human exfoliated deciduous teeth on pressure ulcer formation. Front Immunol 2023; 13:1010700. [PMID: 36713359 PMCID: PMC9881429 DOI: 10.3389/fimmu.2022.1010700] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 12/23/2022] [Indexed: 01/14/2023] Open
Abstract
Pressure ulcers (PUs) are increasing with aging worldwide, but there is no effective causal therapy. Although mesenchymal stem cells (MSCs) promote cutaneous wound healing, the effects of the conditioned medium (CM) of MSCs on cutaneous PU formation induced by ischemia-reperfusion injury have been poorly investigated. To address this issue, herein, we first established an immortalized stem cell line from human exfoliated deciduous teeth (SHED). This cell line was revealed to have superior characteristics in that it grows infinitely and vigorously, and stably and consistently secretes a variety of cytokines. Using the CM obtained from the immortalized SHED cell line, we investigated the therapeutic potential on a cutaneous ischemia-reperfusion mouse model for PU formation using two magnetic plates. This is the first study to show that CM from immortalized SHEDs exerts therapeutic effects on PU formation by promoting angiogenesis and oxidative stress resistance through vascular endothelial growth factor and hepatocyte growth factor. Thus, the CM of MSCs has potent therapeutic effects, whereas these therapies have not been implemented in human medicine. To try to meet the regulatory requirements for manufacturing and quality control as much as possible, it is necessary to produce CM that is consistently safe and effective. The immortalization of stem cells could be one of the breakthroughs to meet the regulatory requirements and consequently open up a novel avenue to create a novel type of cell-free regenerative medicine, although further investigation into the quality control is warranted.
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Affiliation(s)
- Yasuhiro Katahira
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Fumihiro Murakami
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Shinya Inoue
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Satomi Miyakawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Eri Sakamoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Yuma Furusaka
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Aruma Watanabe
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Ami Sekine
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Hideaki Hasegawa
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Izuru Mizoguchi
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Takayuki Yoshimoto
- Department of Immunoregulation, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan,*Correspondence: Takayuki Yoshimoto,
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15
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Yoshino K, Ito K, Kuroda M, Sugihara N. Survival Rate of 3-unit Fixed Partial Dentures Replacing First Molars: A Retrospective Cohort Study. Bull Tokyo Dent Coll 2023; 63:159-165. [PMID: 36384758 DOI: 10.2209/tdcpublication.2022-0009] [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] [Indexed: 11/16/2022]
Abstract
Fixed partial dentures (FPDs) made of 12% Au-Pd alloy are covered under Japan's national health insurance system. The survival rate of such 3-unit fixed FPDs remains unknown, however. The purpose of this retrospective study was to assess their survival rate in the replacement of first molars. A total of 140 FPDs were included, and the endpoint was removal of an FPD. During the observation period, 43 FPDs were removed. The FPD survival rate was 70.2% at 10 yr, 58.2% at 15 yr, and 42.1% at 20 yr according to the Kaplan-Meier method. The estimated mean survival period was 19.4 yr. The main reasons for FPD loss were dental caries (27.9%), separation from the abutment tooth (18.6%), and pulpitis (18.6%). Single factor analysis using the log-rank test showed that two factors influenced FPD survival: a smaller gonial angle and deep pockets around the abutment teeth. This effect was not statistically significant in either case, however (p>0.05). The present results suggest that the prevention of caries and of the separation of the dentures from the abutment teeth are important factors in the long-term survival of FPDs.
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Affiliation(s)
- Koichi Yoshino
- Department of Epidemiology and Public Health, Tokyo Dental College
| | | | | | - Naoki Sugihara
- Department of Epidemiology and Public Health, Tokyo Dental College
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16
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Dungubat E, Kusano H, Mori I, Tawara H, Sutoh M, Ohkura N, Takanashi M, Kuroda M, Harada N, Udo E, Souda M, Furusato B, Fukusato T, Takahashi Y. Age-dependent sex difference of non-alcoholic fatty liver disease in TSOD and db/db mice. PLoS One 2022; 17:e0278580. [PMID: 36516179 PMCID: PMC9750023 DOI: 10.1371/journal.pone.0278580] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/19/2022] [Indexed: 12/15/2022] Open
Abstract
According to previous clinical studies, the prevalence of non-alcoholic fatty liver disease (NAFLD) is higher in men than women only during the reproductive age. Animal models of NAFLD that reflect sex differences in humans have not been established. In this study, we examined sex differences in the hepatic lesions of Tsumura Suzuki obese diabetes (TSOD) and db/db mice, which are representative genetic models of NAFLD. Male and female TSOD and db/db mice were fed with a normal diet and tap water ad libitum. Six male and female mice of each strain were sacrificed at the ages of 3 and 9 months, respectively, and serum biochemical, pathological, and molecular analyses were performed. Serum aspartate aminotransferase (AST) levels were significantly higher in male than female mice of both strains at the age of 3 months; however, at 9 months, significant sex differences were not observed. Similarly, alanine aminotransferase (ALT) levels were significantly higher in male mice than in female TSOD mice at the age of 3 months; however, at 9 months, significant sex differences were not observed. Image analysis of histological slides revealed that the frequency of the steatotic area was significantly higher in male than female db/db mice at the age of 3 months; however, significant sex differences were not observed at 9 months. The frequency of Sirius red-positive fibrotic area was significantly higher in male than female mice in both strains at the age of 3 months; however, significant sex differences were not observed at 9 months. Serum AST and ALT levels and hepatic steatosis and fibrosis in TSOD and db/db mice showed age-dependent sex differences consistent with those observed in human NAFLD. These mice may be suitable for studying sex differences of the disease.
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Affiliation(s)
- Erdenetsogt Dungubat
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita, Japan,Department of Pathology, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Hiroyuki Kusano
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita, Japan
| | - Ichiro Mori
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita, Japan
| | | | - Mitsuko Sutoh
- Institute for Animal Reproduction, Kasumigaura, Japan
| | - Naoki Ohkura
- Faculty of Pharma Sciences, Laboratory of Host Defence, Teikyo University, Tokyo, Japan
| | | | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Naoki Harada
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Osaka Metropolitan University, Osaka, Japan
| | - Emiko Udo
- Clinical Genomics Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Masakazu Souda
- Clinical Genomics Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Bungo Furusato
- Clinical Genomics Center, Nagasaki University Hospital, Nagasaki, Japan
| | - Toshio Fukusato
- General Medical Education and Research Center, Teikyo University, Tokyo, Japan
| | - Yoshihisa Takahashi
- Department of Pathology, School of Medicine, International University of Health and Welfare, Narita, Japan,* E-mail:
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17
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Komatsu H, Usui Y, Sukeda A, Yamamoto Y, Ohno SI, Goto K, Kuroda M, Nagao T, Goto H. Prevalence of Merkel Cell Polyomavirus in Primary Eyelid Merkel Cell Carcinomas and Association With Clinicopathological Features. Am J Ophthalmol 2022; 249:49-56. [PMID: 36493850 DOI: 10.1016/j.ajo.2022.12.001] [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: 08/20/2022] [Revised: 11/10/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Merkel cell polyomavirus (MCPyV) infection is a known to be a critical risk factor for the development of Merkel cell carcinoma (MCC). Various reports on cutaneous MCC have shown that the differences in clinicohistopathological characteristics depend on the presence of MCPyV, but the situation in eyelid MCC is unknown. This study aimed to assess the prevalence of MCPyV in patients with eyelid MCC and examine the clinicohistopathological characteristics of MCPyV-associated eyelid MCC. DESIGN Retrospective observational case series with laboratory investigations. METHODS Ten patients treated for eyelid MCC were included. Histopathological characteristics were examined by immunohistochemical staining using 12 antibodies. MCPyV infection was evaluated by PCR using primer sets targeting large T antigens of the MCPyV genome and by immunohistochemical staining using CM2B4 and Ab3 monoclonal antibodies. The MCPyV viral load was also quantified by PCR using 3 primer sets. RESULTS All patients (4 males and 6 females) were Japanese with mean age of 79 (range: 63 to 87) years. One patient died due to distant metastasis 8 months after surgery for MCC. Immunohistochemical studies showed typical MCC findings in all cases, including CK20 and neuroendocrine marker positivity. PCR and immunohistochemistry with CM2B4 and Ab3 detected MCPyV antigen in all tumors. Quantitative PCR using sT, LT4, and TAg primers yielded 0.94, 1.72, and 1.05 copies per cell, respectively. CONCLUSION Clinical and histopathological characteristics of 10 patients with eyelid MCC were elucidated. MCPyV infection was detected in all eyelids. These results provide insight for understanding the tumorigenesis of eyelid MCC.
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Affiliation(s)
- Hiroyuki Komatsu
- From the Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan (H.K., Y.U., H.G.)
| | - Yoshihiko Usui
- From the Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan (H.K., Y.U., H.G.).
| | - Aoi Sukeda
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan (A.S., Y.Y., K.G., T.N.)
| | - Yoshinari Yamamoto
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan (A.S., Y.Y., K.G., T.N.)
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan (S I. O., M.K.)
| | - Keisuke Goto
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan (A.S., Y.Y., K.G., T.N.)
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan (S I. O., M.K.)
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Tokyo, Japan (A.S., Y.Y., K.G., T.N.)
| | - Hiroshi Goto
- From the Department of Ophthalmology, Tokyo Medical University, Tokyo, Japan (H.K., Y.U., H.G.)
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18
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Kanekura K, Kuroda M. How can we interpret the relationship between liquid-liquid phase separation and amyotrophic lateral sclerosis? J Transl Med 2022; 102:912-918. [PMID: 36775420 DOI: 10.1038/s41374-022-00791-x] [Citation(s) in RCA: 1] [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] [Received: 02/09/2022] [Accepted: 04/12/2022] [Indexed: 01/08/2023] Open
Abstract
One of the critical definitions of neurodegenerative diseases is the formation of insoluble intracellular inclusion body. These inclusions are found in various neurodegenerative diseases such as Alzheimer's disease, amyotrophic lateral sclerosis (ALS), Huntington's disease, Parkinson's disease, and frontotemporal dementia (FTD). Each inclusion body contains disease-specific proteins and is also resistant to common detergent treatments. These aggregates are generally ubiquitinated and thus recognized as misfolded by the organism. They are observed in residual neurons at the affected sites in each disease, suggesting a contribution to disease pathogenesis. The molecular mechanisms for the formation of these inclusion bodies remain unclear. Some proteins, such as superoxide dismutase 1 (SOD1) mutant that causes familial ALS, are highly aggregative due to altered folding caused by point mutations. Still, the aggregates observed in neurodegenerative diseases contain wild-type proteins. In recent years, it has been reported that the proteins responsible for neurodegenerative diseases undergo liquid-liquid phase separation (LLPS). In particular, the ALS/FTD causative proteins such as TAR DNA-binding protein 43 kDa (TDP-43) and fused-in-sarcoma (FUS) undergo LLPS. LLPS increases the local concentration of these proteins, and these proteins eventually change their phase from liquid to solid (liquid-solid phase transition) due to abnormal folding during repetitive separation cycles into two phases and recovery to one phase. In addition to the inclusion body formation, sequestration of essential proteins into the LLPS droplets or changes in the LLPS status can directly impair neural functions and cause diseases. In this review, we will discuss the relationship between the LLPS observed in ALS causative proteins and the pathogenesis of the disease and outline potential therapeutic approaches.
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Affiliation(s)
- Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
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19
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Kasahara K, Katsumata K, Saito A, Ishizaki T, Enomoto M, Mazaki J, Tago T, Nagakawa Y, Matsubayashi J, Nagao T, Hirano H, Kuroda M, Tsuchida A. Artificial intelligence predicts lymph node metastasis or risk of lymph node metastasis in T1 colorectal cancer. Int J Clin Oncol 2022; 27:1570-1579. [PMID: 35908272 DOI: 10.1007/s10147-022-02209-6] [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: 09/16/2021] [Accepted: 06/20/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND The treatment strategies for colorectal cancer (CRC) must ensure a radical cure of cancer and prevent over/under treatment. Biopsy specimens used for the definitive diagnosis of T1 CRC were analyzed using artificial intelligence (AI) to construct a risk index for lymph node metastasis. METHODS A total of 146 T1 CRC cases were analyzed. The specimens for analysis were mainly biopsy specimens, and in the absence of biopsy specimens, the mucosal layer of the surgical specimens was analyzed. The pathology slides for each case were digitally imaged, and the morphological features of cancer cell nuclei were extracted from the tissue images. First, statistical methods were used to analyze how well these features could predict lymph node metastasis risk. A lymph node metastasis risk model using AI was created based on these morphological features, and accuracy in test cases was verified. RESULTS Each developed model could predict lymph node metastasis risk with a > 90% accuracy in each region of interest of the training cases. Lymph node metastasis risk was predicted with 81.8-86.3% accuracy for randomly validated cases, using a learning model with biopsy data. Moreover, no case with lymph node metastasis or lymph node risk was judged to have no risk using the same model. CONCLUSIONS AI models suggest an association between biopsy specimens and lymph node metastases in T1 CRC and may contribute to increased accuracy of preoperative diagnosis.
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Affiliation(s)
- Kenta Kasahara
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
| | - Kenji Katsumata
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Akira Saito
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Tetsuo Ishizaki
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Masanobu Enomoto
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Junichi Mazaki
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Tomoya Tago
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuichi Nagakawa
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hiroshi Hirano
- Diagnostic Pathology Division, Tokyo Medical University Hachioji Medical Center, 1163 Tatemachi, Hachioji-shi, 193-0998, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Akihiko Tsuchida
- Department of Digestive and Pediatric Surgery, Tokyo Medical University, 6-7-1 Nishi Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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20
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Yoshioka Y, Shimomura M, Saito K, Ishii H, Doki Y, Eguchi H, Nakatsura T, Itoi T, Kuroda M, Mori M, Ochiya T. Circulating cancer-associated extracellular vesicles as early detection and recurrence biomarkers for pancreatic cancer. Cancer Sci 2022; 113:3498-3509. [PMID: 35848896 PMCID: PMC9530877 DOI: 10.1111/cas.15500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 11/30/2022] Open
Abstract
Early detection of pancreatic ductal adenocarcinoma (PDAC) is essential for improving patient survival rates, and non-invasive biomarkers are urgently required to identify patients who are eligible for curative surgery. Here, we examined extracellular vesicles (EVs) from the serum of PDAC patients to determine their ability to detect early-stage disease. EV-associated proteins purified by ultracentrifugation and affinity columns underwent proteomic analysis to identify novel PDAC markers G protein-coupled receptor class C group 5 member C (GPRC5C) and epidermal growth factor receptor pathway substrate 8 (EPS8). To verify the potency of GPRC5C- or EPS8-positive EVs as PDAC biomarkers, we analyzed EVs from PDAC patient blood samples using ultracentrifugation in two different cohorts (a total of 54 PDAC patients, 32 healthy donors, and 22 pancreatitis patients) by immunoblotting. The combination of EV-associated GPRC5C and EPS8 had high accuracy, with area under the curve (AUC) values of 0.922 and 0.946 for distinguishing early-stage PDAC patients from healthy controls in the two cohorts, respectively, and could detect PDAC patients who were negative for CA19-9. Moreover, we analyzed 30 samples taken at three time points from 10 PDAC patients who underwent surgery: before surgery, after surgery, and recurrence as an early-stage model. These proteins were detected in EVs derived from preoperative and recurrence samples. These results indicated that GPRC5C- or EPS8-positive EVs were biomarkers that have the potential to detect stage I early pancreatic cancer and small recurrent tumors detected by computed tomography.
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Affiliation(s)
- Yusuke Yoshioka
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Manami Shimomura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Keigo Saito
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Hideshi Ishii
- Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Hidetoshi Eguchi
- Department of Gastroenterological Surgery, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Tetsuya Nakatsura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Masaki Mori
- Tokai University School of Medicine, Isehara, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
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21
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Yamamoto T, Nakayama J, Yamamoto Y, Kuroda M, Hattori Y, Ochiya T. SORT1/LAMP2-mediated extracellular vesicle secretion and cell adhesion are linked to lenalidomide resistance in multiple myeloma. Blood Adv 2022; 6:2480-2495. [PMID: 34979567 PMCID: PMC9043942 DOI: 10.1182/bloodadvances.2021005772] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/30/2021] [Indexed: 12/22/2022] Open
Abstract
Multiple myeloma (MM) is a hematopoietic malignancy whose prognosis has improved with the development of new agents such as lenalidomide over the last decade. However, long-term exposure to drugs induces the acquisition of resistance by MM cells and leads to treatment failure and poor prognosis. Here, we show the molecular and cellular mechanisms of lenalidomide resistance in MM. In a comparison between lenalidomide-resistant cell lines and the parental cell lines, extracellular vesicle (EV) secretion and adherence abilities were significantly elevated in the resistant cells. Whole-transcriptome analysis revealed that the SORT1 and LAMP2 genes were key regulators of EV secretion. Silencing of these genes caused decreased EV secretion and loss of cell adhesion in the resistant cells, resulting in increased sensitivity to lenalidomide. Analysis of publicly available transcriptome data confirmed the relationship between genes related to EV secretion and cell adhesion and patient prognosis. Together, our findings reveal a novel mechanism of lenalidomide resistance in MM mediated by EV secretion and cell adhesion via SORT1 and LAMP2.
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Affiliation(s)
- Tomofumi Yamamoto
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
- Clinical Physiology and Therapeutics, Keio University Faculty of Pharmacy, Tokyo, Japan; and
| | - Jun Nakayama
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Yusuke Yamamoto
- Division of Cellular Signaling, National Cancer Center Research Institute, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yutaka Hattori
- Clinical Physiology and Therapeutics, Keio University Faculty of Pharmacy, Tokyo, Japan; and
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
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22
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Saeki C, Matsuzaki J, Kuroda M, Fujita K, Ichikawa M, Takizawa S, Takano K, Oikawa T, Nakanuma Y, Saruta M, Ochiya T, Tsubota A. Identification of circulating microRNAs as potential biomarkers for hepatic necroinflammation in patients with autoimmune hepatitis. BMJ Open Gastroenterol 2022; 9:bmjgast-2022-000879. [PMID: 35379653 PMCID: PMC8981297 DOI: 10.1136/bmjgast-2022-000879] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/16/2022] [Indexed: 11/24/2022] Open
Abstract
Objective MicroRNAs (miRNAs) are implicated in the pathogenesis of autoimmune diseases and could be biomarkers of disease activity. This study aimed to identify highly expressed circulating miRNAs in patients with autoimmune hepatitis (AIH) and to evaluate their association with clinical characteristics. Methods Microarray analyses were performed, and miRNA expression profiling for AIH, primary biliary cholangitis (PBC) and overlap syndrome (OS) using the serum of patients and healthy individuals was done. Samples were divided into discovery and test sets to identify candidate miRNAs that could discriminate AIH from PBC; the former included 21 AIH and 23 PBC samples, while the latter included five AIH and eight PBC samples. Results Among 11 candidate miRNAs extracted in the discovery set, 4 (miR-3196, miR-6125, miR-4725–3 p and miR-4634) were specifically and highly expressed in patients with AIH in the test set. These four miRNAs discriminated AIH from PBC with high sensitivity (0.80–1.00) and specificity (0.88–1.00). In situ hybridisation analysis revealed that these miRNAs were expressed in the cytoplasm of hepatocytes in patients with AIH. Their expression levels were highest in untreated patients with AIH, followed by those in untreated patients with OS. They drastically or moderately decreased after prednisolone treatment. Histological analysis demonstrated that the expression levels of miR-3196, miR-6125 and miR-4634 in patients with AIH and OS were correlated with severe hepatic necroinflammatory activity. Conclusion These circulating miRNAs are suggested to reflect hepatic necroinflammatory activity and serve as AIH-related and treatment-responsive biomarkers. These miRNAs could be beneficial in developing new therapeutic strategies for AIH.
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Affiliation(s)
- Chisato Saeki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan .,Division of Gastroenterology, Department of Internal Medicine, Fuji City General Hospital, Shizuoka, Japan
| | - Juntaro Matsuzaki
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Division of Pharmacotherapeutics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | | | | | - Keiko Takano
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Tsunekazu Oikawa
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yasuni Nakanuma
- Department of Diagnostic Pathology, Fukui Prefecture Saiseikai Hospital, Fukui, Japan
| | - Masayuki Saruta
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo, Japan.,Department of Molecular and Cellular Medicine, Tokyo Medical University, Tokyo, Japan
| | - Akihito Tsubota
- Core Research Facilities, Research Center for Medical Science, The Jikei University School of Medicine, Tokyo, Japan
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23
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Akiyama S, Saku N, Miyata S, Ite K, Toyoda M, Kimura T, Kuroda M, Nakazawa A, Kasahara M, Nonaka H, Kamiya A, Kiyono T, Kobayshi T, Murakami Y, Umezawa A. Drug metabolic activity is a critical cell-intrinsic determinant for selection of hepatocytes during long-term culture. Stem Cell Res Ther 2022; 13:104. [PMID: 35279203 PMCID: PMC8917760 DOI: 10.1186/s13287-022-02776-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 09/03/2021] [Accepted: 02/14/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The liver plays an important role in various metabolic processes, including protein synthesis, lipid and drug metabolisms and detoxifications. Primary culture of hepatocytes is used for the understanding of liver physiology as well as for the drug development. Hepatocytes are, however, hardly expandable in vitro making it difficult to secure large numbers of cells from one donor. Alternatively, systems using animal models and hepatocellular carcinoma cells have been established, but interspecies differences, variation between human cell sources and limited hepatic functions are among the challenges faced when using these models. Therefore, there is still a need for a highly stable method to purify human hepatocytes with functional sufficiency. In this study, we aimed to establish an in vitro long-term culture system that enables stable proliferation and maintenance of human hepatocytes to ensure a constant supply. METHODS We first established a growth culture system for hepatocytes derived from patients with drug-induced liver injury using fetal mouse fibroblasts and EMUKK-05 medium. We then evaluated the morphology, proliferative capacity, chromosome stability, gene and protein expression profiles, and drug metabolic capacity of hepatocytes in early, middle and late passages with and without puromycin. In addition, hepatic maturation in 3D culture was evaluated from morphological and functional aspects. RESULTS In our culture system, the stable proliferation of human hepatocytes was achieved by co-culturing with mouse fetal fibroblasts, resulting in dedifferentiation into hepatic progenitor-like cells. We purified human hepatocytes by selection with cytocidal puromycin and cultured them for more than 60 population doublings over a span of more than 350 days. Hepatocytes with high expression of cytochrome P450 genes survived after exposure to cytocidal antibiotics because of enhanced drug-metabolizing activity. CONCLUSIONS These results show that this simple culture system with usage of the cytocidal antibiotics enables efficient hepatocyte proliferation and is an effective method for generating a stable supply of hepatocytes for drug discovery research at a significant cost reduction.
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Affiliation(s)
- Saeko Akiyama
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan.,Department of Advanced Pediatric Medicine (National Center for Child Health and Development), Tohoku University School of Medicine, Tokyo, Japan
| | - Noriaki Saku
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan
| | - Shoko Miyata
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan
| | - Kenta Ite
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan
| | - Masashi Toyoda
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan.,Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan
| | - Tohru Kimura
- Laboratory of Stem Cell Biology, Department of BioSciences, Kitasato University School of Science, Kanagawa, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, Japan
| | - Atsuko Nakazawa
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan.,Department of Clinical Research, Saitama Children's Medical Center, Saitama, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, Japan
| | - Hidenori Nonaka
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan
| | - Akihide Kamiya
- Department of Molecular Life Sciences, Tokai University School of Medicine, Kanagawa, Japan
| | - Tohru Kiyono
- Project for Prevention of HPV-Related Cancer, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan
| | - Tohru Kobayshi
- Department of Data Science, Clinical Research Center, National Center for Child Health and Development, Tokyo, Japan
| | | | - Akihiro Umezawa
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, Tokyo, Japan. .,Department of Advanced Pediatric Medicine (National Center for Child Health and Development), Tohoku University School of Medicine, Tokyo, Japan.
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24
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Kanekura K, Yamanaka Y, Miyagi T, Kuroda M. Chemically oligomerizable TDP-43: a novel chemogenetic tool for studying the pathophysiology of amyotrophic lateral sclerosis. Neural Regen Res 2022; 17:2434-2436. [PMID: 35535888 PMCID: PMC9120673 DOI: 10.4103/1673-5374.335803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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25
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Tokuyama N, Saito A, Muraoka R, Matsubara S, Hashimoto T, Satake N, Matsubayashi J, Nagao T, Mirza AH, Graf HP, Cosatto E, Wu CL, Kuroda M, Ohno Y. Prediction of non-muscle invasive bladder cancer recurrence using machine learning of quantitative nuclear features. Mod Pathol 2022; 35:533-538. [PMID: 34716417 PMCID: PMC8964412 DOI: 10.1038/s41379-021-00955-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 06/30/2021] [Revised: 10/09/2021] [Accepted: 10/12/2021] [Indexed: 11/15/2022]
Abstract
Non-muscle invasive bladder cancer (NMIBC) generally has a good prognosis; however, recurrence after transurethral resection (TUR), the standard primary treatment, is a major problem. Clinical management after TUR has been based on risk classification using clinicopathological factors, but these classifications are not complete. In this study, we attempted to predict early recurrence of NMIBC based on machine learning of quantitative morphological features. In general, structural, cellular, and nuclear atypia are evaluated to determine cancer atypia. However, since it is difficult to accurately quantify structural atypia from TUR specimens, in this study, we used only nuclear atypia and analyzed it using feature extraction followed by classification using Support Vector Machine and Random Forest machine learning algorithms. For the analysis, 125 patients diagnosed with NMIBC were used; data from 95 patients were randomly selected for the training set, and data from 30 patients were randomly selected for the test set. The results showed that the support vector machine-based model predicted recurrence within 2 years after TUR with a probability of 90% and the random forest-based model with probability of 86.7%. In the future, the system can be used to objectively predict NMIBC recurrence after TUR.
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Affiliation(s)
- Naoto Tokuyama
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Akira Saito
- grid.410793.80000 0001 0663 3325Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Shinjuku-ku, Tokyo 160-8402 Japan ,grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-8402 Japan
| | - Ryu Muraoka
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Shuya Matsubara
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Takeshi Hashimoto
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Naoya Satake
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Jun Matsubayashi
- grid.410793.80000 0001 0663 3325Department of Anatomic Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Toshitaka Nagao
- grid.410793.80000 0001 0663 3325Department of Anatomic Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Aashiq H. Mirza
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-8402 Japan ,grid.5386.8000000041936877XDepartment of Pharmacology, Weill Cornell Medicine, New York, NY 10065 USA
| | - Hans-Peter Graf
- Department of Machine Learning, NEC Labs America Inc., Princeton, NJ 08540 USA
| | - Eric Cosatto
- Department of Machine Learning, NEC Labs America Inc., Princeton, NJ 08540 USA
| | - Chin-Lee Wu
- grid.32224.350000 0004 0386 9924Department of Pathology, Massachusetts General Hospital, Boston, MA 02114 USA
| | - Masahiko Kuroda
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Shinjuku-ku, Tokyo, 160-8402, Japan. .,Department of Molecular Pathology, Tokyo Medical University, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Yoshio Ohno
- grid.410793.80000 0001 0663 3325Department of Urology, Tokyo Medical University, Shinjuku-ku, Tokyo 160-0023 Japan
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26
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Kanekura K, Hayamizu Y, Kuroda M. Order controls disordered droplets: structure-function relationships in C9orf72-derived poly(PR). Am J Physiol Cell Physiol 2021; 322:C197-C204. [PMID: 34910602 DOI: 10.1152/ajpcell.00372.2021] [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] [Indexed: 11/22/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) have been thought as two distinct neurodegenerative diseases. However, recent genetic screening and careful investigations found the genetic and pathological overlap among these disorders. Hexanucleotide expansions in intron 1 of C9orf72 are a leading cause of familial ALS and familial FTD. These expansions facilitate the repeat-associated non-ATG initiated translation (RAN translation), producing five dipeptide repeat proteins (DRPs), including Arg-rich poly(PR: Pro-Arg) and poly-(GR: Gly-Arg) peptides. Arg is a positively charged, highly polar amino acid that facilitates interactions with anionic molecules such as nucleic acids and acidic amino acids via electrostatic forces and aromatic amino acids via cation-pi interaction, suggesting that Arg-rich DRPs underlie the pathophysiology of ALS via Arg-mediated molecular interactions. Arg-rich DRPs have also been reported to induce neurodegeneration in cellular and animal models via multiple mechanisms; however, it remains unclear why the Arg-rich DRPs exhibit such diverse toxic properties, because not all Arg-rich peptides are toxic. In this mini-review, we discuss the current understanding of the pathophysiology of Arg-rich C9orf72 DRPs and introduce recent findings on the role of Arg distribution as a determinant of the toxicity and its contribution to the pathogenesis of ALS.
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Affiliation(s)
- Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Tokyo, Japan
| | - Yuhei Hayamizu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Tokyo, Japan
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27
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Yoshino K, Ito K, Kuroda M, Sugihara N. Survival Rate of Removable Partial Dentures with Mandibular Bilateral Free End Saddle: A Retrospective Study. Bull Tokyo Dent Coll 2021; 62:205-214. [PMID: 34776474 DOI: 10.2209/tdcpublication.2020-0061] [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] [Indexed: 11/06/2022]
Abstract
The purpose of this study was to investigate the survival of removable partial dentures with a mandibular bilateral free end saddle (BFES) and abutment teeth in a clinical setting. Only mandibular dentures with a BFES were included (10 or fewer present teeth, and fewer than 4 occlusal units). The endpoints were replacement of denture and loss of abutment teeth. A total of 128 dentures and 595 abutment teeth were analyzed. Nineteen dentures had to be replaced during the observation period (mean duration: 11.4±6.9 years; range: 3 to 36 years). According to Kaplan-Meier analysis, the survival rate was 93.2% at 10 years and 68.6% at 20 years. The estimated mean survival period was 27.8 years. Single-factor analysis using the log-rank test showed that no factor investigated had a significant influence. The main reason for denture replacement was loss of abutment teeth (47.4%). The survival rate of the abutment teeth was 91.3% at 10 years and 77.3% at 20 years. The analysis revealed 4 significant risk factors: male sex (hazard ratio [HR]: 1.78); premolars (HR: 1.67); a lower number of abutment teeth (HR: 3.24); and history of endodontic treatment (HR: 2.79). The removable partial dentures with a mandibular BFES in this study lasted over 20 years, and their survival was influenced by loss of abutment teeth. Dentures are used continuously over long periods of time and should therefore be designed to allow easy adjustment when abutment teeth are lost.
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Affiliation(s)
- Koichi Yoshino
- Department of Epidemiology and Public Health, Tokyo Dental College
| | | | | | - Naoki Sugihara
- Department of Epidemiology and Public Health, Tokyo Dental College
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Jigjidkhorloo N, Kanekura K, Matsubayashi J, Akahane D, Fujita K, Oikawa K, Kurata A, Takanashi M, Endou H, Nagao T, Gotoh A, Norov O, Kuroda M. Expression of L-type amino acid transporter 1 is a poor prognostic factor for Non-Hodgkin's lymphoma. Sci Rep 2021; 11:21638. [PMID: 34737339 PMCID: PMC8569019 DOI: 10.1038/s41598-021-00811-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 09/20/2021] [Indexed: 01/23/2023] Open
Abstract
L-type neutral amino acid transporter 1 (LAT1) is a heterodimeric membrane transport protein involved in neutral amino acid transport. LAT1 is highly expressed in various malignant solid tumors and plays an essential role in cell proliferation. However, its role in malignant lymphoma remains unknown. Here, we evaluated LAT1 expression level in tissues from 138 patients with Non-Hodgkin lymphoma (NHL). Overexpression of LAT1 was confirmed in all types of NHL and we found that there is a significant correlation between the level of LAT1 expression and lymphoma grade. The LAT1 expression was higher in aggressive types of lymphomas when compared with static types of lymphomas, suggesting that active tumor proliferation requires nutrient uptake via LAT1. The expression level of LAT1 was inversely correlated with patients’ survival span. Furthermore, pharmacological inhibition of LAT1 by a specific inhibitor JPH203 inhibits lymphoma cell growth. In conclusion, our study demonstrated that LAT1 expression can be used as a prognostic marker for patients with NHL and targeting LAT1 by JPH203 can be a novel therapeutic modality for NHL.
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Affiliation(s)
- Narangerel Jigjidkhorloo
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.,Center of Hematology and Blood & Marrow Transplantation, The First Central Hospital of Mongolia, Ulaanbaatar, 14210, Mongolia
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Jun Matsubayashi
- Department of Anatomical Pathology, Tokyo Medical University Hospital, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Daigo Akahane
- Department of Hematology, Tokyo Medical University Hospital, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Keiki Oikawa
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Atsushi Kurata
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Hitoshi Endou
- J-Pharma Co., Ltd., 75-1 Ono-cho, Tsurumi-ku, Yokohama, Kanagawa, 230-0046, Japan
| | - Toshitaka Nagao
- Department of Anatomical Pathology, Tokyo Medical University Hospital, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Akihiko Gotoh
- Department of Hematology, Tokyo Medical University Hospital, 6-7-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Oyundelger Norov
- Center of Hematology and Blood & Marrow Transplantation, The First Central Hospital of Mongolia, Ulaanbaatar, 14210, Mongolia
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
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29
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Chen C, Yamanaka Y, Ueda K, Li P, Miyagi T, Harada Y, Tezuka S, Narumi S, Sugimoto M, Kuroda M, Hayamizu Y, Kanekura K. Phase separation and toxicity of C9orf72 poly(PR) depends on alternate distribution of arginine. J Cell Biol 2021; 220:212626. [PMID: 34499080 PMCID: PMC8438627 DOI: 10.1083/jcb.202103160] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 03/24/2021] [Revised: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 12/15/2022] Open
Abstract
Arg (R)-rich dipeptide repeat proteins (DPRs; poly(PR): Pro-Arg and poly(GR): Gly-Arg), encoded by a hexanucleotide expansion in the C9ORF72 gene, induce neurodegeneration in amyotrophic lateral sclerosis (ALS). Although R-rich DPRs undergo liquid-liquid phase separation (LLPS), which affects multiple biological processes, mechanisms underlying LLPS of DPRs remain elusive. Here, using in silico, in vitro, and in cellulo methods, we determined that the distribution of charged Arg residues regulates the complex coacervation with anionic peptides and nucleic acids. Proteomic analyses revealed that alternate Arg distribution in poly(PR) facilitates entrapment of proteins with acidic motifs via LLPS. Transcription, translation, and diffusion of nucleolar nucleophosmin (NPM1) were impaired by poly(PR) with an alternate charge distribution but not by poly(PR) variants with a consecutive charge distribution. We propose that the pathogenicity of R-rich DPRs is mediated by disturbance of proteins through entrapment in the phase-separated droplets via sequence-controlled multivalent protein-protein interactions.
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Affiliation(s)
- Chen Chen
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Yoshiaki Yamanaka
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Koji Ueda
- Cancer Proteomics Group, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Peiying Li
- Center for Biosystems Dynamics Research, RIKEN, Kanagawa, Japan
| | - Tamami Miyagi
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yuichiro Harada
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Sayaka Tezuka
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Satoshi Narumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yuhei Hayamizu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, Tokyo, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
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30
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Miyagi T, Yamanaka Y, Harada Y, Narumi S, Hayamizu Y, Kuroda M, Kanekura K. An improved macromolecular crowding sensor CRONOS for detection of crowding changes in membrane-less organelles under stressed conditions. Biochem Biophys Res Commun 2021; 583:29-34. [PMID: 34717122 DOI: 10.1016/j.bbrc.2021.10.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 10/20/2022]
Abstract
Membrane-less organelles (MLOs) formed by liquid-liquid phase separation (LLPS) play pivotal roles in biological processes. During LLPS, proteins and nucleotides are extremely condensed, resulting in changes in their conformation and biological functions. Disturbed LLPS homeostasis in MLOs is thought to associate with fatal diseases such as amyotrophic lateral sclerosis. Therefore, it is important to detect changes in the degree of crowding in MLOs. However, it has not been investigated well due to the lack of an appropriate method. To address this, we developed a genetically encoded macromolecular crowding sensor CRONOS (crowding sensor with mNeonGreen and mScarlet-I) that senses the degree of macromolecular crowding in MLOs using a fluorescence resonance energy transfer (FRET) system. CRONOS is a bright biosensor with a wide dynamic range and successfully detects changes in the macromolecular volume fraction in solution. By fusing to the scaffold protein of each MLO, we delivered CRONOS to MLO of interest and detected previously undescribed differences in the degree of crowding in each MLO. CRONOS also detected changes in the degree of macromolecular crowding in nucleolus induced by environmental stress or inhibition of transcription. These findings suggest that CRONOS can be a useful tool for the determination of molecular crowding and detection of pathological changes in MLOs in live cells.
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Affiliation(s)
- Tamami Miyagi
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshiaki Yamanaka
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yuichiro Harada
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Satoshi Narumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, 157-8535, Japan
| | - Yuhei Hayamizu
- Department of Materials Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
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31
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Yamanaka Y, Miyagi T, Harada Y, Kuroda M, Kanekura K. Establishment of chemically oligomerizable TAR DNA-binding protein-43 which mimics amyotrophic lateral sclerosis pathology in mammalian cells. J Transl Med 2021; 101:1331-1340. [PMID: 34131277 DOI: 10.1038/s41374-021-00623-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/22/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 11/09/2022] Open
Abstract
One of the pathological hallmarks of amyotrophic lateral sclerosis (ALS) is mislocalized, cytosolic aggregation of TAR DNA-Binding Protein-43 (TDP-43). Not only TDP-43 per se is a causative gene of ALS but also mislocalization and aggregation of TDP-43 seems to be a common pathological change in both sporadic and familial ALS. The mechanism how nuclear TDP-43 transforms into cytosolic aggregates remains elusive, but recent studies using optogenetics have proposed that aberrant liquid-liquid phase separation (LLPS) of TDP-43 links to the aggregation process, leading to cytosolic distribution. Although LLPS plays an important role in the aggregate formation, there are still several technical problems in the optogenetic technique to be solved to progress further in vivo study. Here we report a chemically oligomerizable TDP-43 system. Oligomerization of TDP-43 was achieved by a small compound AP20187, and oligomerized TDP-43 underwent aggregate formation, followed by cytosolic mislocalization and induction of cell toxicity. The mislocalized TDP-43 co-aggregated with wt-TDP-43, Fused-in-sarcoma (FUS), TIA1 and sequestosome 1 (SQSTM1)/p62, mimicking ALS pathology. The chemically oligomerizable TDP-43 also revealed the roles of the N-terminal domain, RNA-recognition motif, nuclear export signal and low complexity domain in the aggregate formation and mislocalization of TDP-43. The aggregate-prone properties of TDP-43 were enhanced by a familial ALS-causative mutation. In conclusion, the chemically oligomerizable TDP-43 system could be useful to study the mechanisms underlying the droplet-aggregation phase transition and cytosolic mislocalization of TDP-43 in ALS and further study in vivo.
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Affiliation(s)
- Yoshiaki Yamanaka
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Tamami Miyagi
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yuichiro Harada
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan.
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32
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Yamada Y, Kurata A, Fujita K, Kuroda M. Fascin as a useful marker for cancer-associated fibroblasts in invasive lung adenocarcinoma. Medicine (Baltimore) 2021; 100:e27162. [PMID: 34477172 PMCID: PMC8416015 DOI: 10.1097/md.0000000000027162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/19/2021] [Indexed: 01/05/2023] Open
Abstract
Cancer-associated fibroblasts (CAFs) have been attracting attention in recent years, but their nature has not been fully elucidated. Although CAFs have been recognized as an important therapeutic target, therapeutic agents have not been developed to date. CAFs are characterized by their high migration rate and involvement in epithelial-to-mesenchymal transition with some displaying a dendritic morphology that is reminiscent of fascin expression.The present study was designed to immunohistochemically investigate fascin expression in lung adenocarcinoma including CAFs and compare the results with existing CAF markers.We immunohistochemically investigated fascin expression in not only cancer tissue but also CAFs from 26 autopsy cases of lung adenocarcinoma. Immunohistochemistry of α-smooth muscle actin and fibroblast activation protein was also performed.Fascin-positive staining in CAFs was observed in all cases, with a strong correlation observed with existing CAF markers α-smooth muscle actin and fibroblast activation protein (P < .001). In addition, the proportion of tumor cells showing fascin-positive staining was found to correlate with its expression in CAFs (P < .05).We propose that CAFs express fascin, and that fascin may mediate crosstalk between cancer tissue and CAFs. Fascin might be a novel therapeutic target for treatments that target the cancer stroma.
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33
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Gotoh N, Takeuchi Y, Kimura N, Murayama T, Machida Y, Iejima D, Nishimura T, Yamamoto M, Inoue JI, Akashi K, Saya H, Kuroda M, Kitabayashi I, Tojo A. Abstract 2673: The cytoplasmic adaptor FRS2beta fashions a cytokine-rich inflammatory microenvironment that promotes breast cancer carcinogenesis. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-2673] [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: 11/16/2022]
Abstract
Abstract
It is widely held that pro-inflammatory changes often precede the onset of breast cancer. However, the underlying molecular mechanisms are largely unknown. Here, we demonstrate that FRS2β, a membrane-linked adaptor protein expressed in a small subset of luminal epithelial cells, triggers the inflammatory changes in precancerous mammary tissues and is responsible for the onset of the disease. FRS2β-deficiency in a mouse mammary tumor virus (MMTV)-ErbB2 genetic background markedly attenuated mammary tumorigenesis. Importantly, tumor cells derived from MMTV-ErbB2 mice failed to generate tumors when grafted in the FRS2β-deficient precancerous mammary tissue niche. we observed that the co-localization of FRS2β and the NEMO subunit of the IκB kinase (IKK) complex on early endosomes led to activation of nuclear factor-κB (NFκB). Moreover, the expression of numerous cytokines, including CXC chemokine ligand (CXCL)12, was elevated owing to the activation of NFκB. CXCL12 may in turn activate NFκB in an autocrine and paracrine loop, leading to the inflammatory changes that promote tumorigenesis. The elucidation of the FRS2β-dependent NFκB-activation pathway uncovers a hitherto unknown molecular link between the tissue inflammation and the onset of breast cancer.
Citation Format: Noriko Gotoh, Yasuto Takeuchi, Natsuko Kimura, Takehiko Murayama, Yukino Machida, Daisuke Iejima, Tatsunori Nishimura, Mizuki Yamamoto, Jun-ichito Inoue, Kouichi Akashi, Hideyuki Saya, Masahiko Kuroda, Issay Kitabayashi, Arinobu Tojo. The cytoplasmic adaptor FRS2beta fashions a cytokine-rich inflammatory microenvironment that promotes breast cancer carcinogenesis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 2673.
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Affiliation(s)
| | | | - Natsuko Kimura
- 2Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | - Yukino Machida
- 3National Cancer Center Research Institute, Chuo-ku, Japan
| | - Daisuke Iejima
- 2Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | - Mizuki Yamamoto
- 2Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Jun-ichito Inoue
- 2Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Kouichi Akashi
- 4Graduate School of Medicine, Kyushu University, Fukuoka, Japan
| | - Hideyuki Saya
- 5Insitute of Advanced Medical Research, Keio University, Tokyo, Japan
| | | | | | - Arinobu Tojo
- 2Institute of Medical Science, The University of Tokyo, Tokyo, Japan
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Kurata A, Takanashi M, Ohno SI, Fujita K, Kuroda M. Cisplatin induces differentiation in teratomas derived from pluripotent stem cells. Regen Ther 2021; 18:117-126. [PMID: 34141836 PMCID: PMC8192819 DOI: 10.1016/j.reth.2021.05.005] [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: 03/12/2021] [Revised: 04/30/2021] [Accepted: 05/22/2021] [Indexed: 11/28/2022] Open
Abstract
Introduction Currently, embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can be induced to differentiate at the cellular level but not to form mature tissues or organs suitable for transplantation. ESCs/iPSCs form immature teratomas after injection into immunodeficient mice. In humans, immature teratomas often transform into fully differentiated mature teratomas after administration of anticancer agents. Methods We first investigated the ability of cisplatin to induce changes in mouse ESCs/iPSCs in vitro. Next, we designed experiments to analyze ESC/iPSC-derived immature teratoma tissue in vivo after treatment of cisplatin. Groups of six mice carrying ESC- or iPSC-derived teratomas were given either low or high dose intraperitoneal injection of cisplatin, while the control group received saline for 4 weeks. Results Treatment of ESC/iPSC cultures with cisplatin for 3 days caused a dose-related decrease in cell numbers without inducing any morphological changes to the cells. ESC/iPSC-derived teratomas showed lower growth rates with a significantly higher mature components ratio in a concentration dependent manner after cisplatin treatment (P < 0.05); however, immunohistochemical analyses demonstrated a significantly reduced PCNA labelling index and an increase in an apoptosis marker on immature neural components (P < 0.05) along with emergence of h-Caldesmon+ mature smooth muscle cells in treated mice. Moreover, newly differentiated components not found in the control group, such as mature adipose tissue, cartilage, and pancreas, as well as striated muscle, salivary glands, gastric mucosa with fundic glands, and hair follicles emerged. The identities of these components were confirmed by immunostaining for specific markers. Conclusions Cisplatin has the ability to reduce immature components in ESC/iPSC-derived teratomas, presumably through apoptosis, and also to induce them to differentiate. Transformation of immature to mature teratoma after chemotherapy was verified. Mice bearing ESC/iPSC-derived immature teratomas were used. Mice were treated with intraperitoneal injection of cisplatin for 4 weeks. Newly differentiated structures were found only in the tumors of treated mice. Cisplatin can induce differentiation in ESC/iPSC-derived immature teratomas.
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Key Words
- ALP, alkaline phosphatase
- ATP4B, ATPase H+/K+ transporting beta subunit
- CR, chemotherapeutic retroconversion
- Cisplatin
- DMEM, Dulbecco's modified Eagle's medium
- Differentiation
- ESC, embryonic stem cell
- Embryonic stem cells
- FCS, fetal calf serum
- HE, hematoxylin and eosin
- Immature teratoma
- Induced pluripotent stem cells
- KSR, knockout serum replacement
- LIF, leukemia inhibitory factor
- MEF, mouse embryonic fibroblast
- PBS, phosphate buffered saline
- PCNA, proliferating cell nuclear antigen
- RAG, recombination activating gene
- RLU, relative light units
- RT, room temperature
- iPSC, induced pluripotent stem cell
- ssDNA, single stranded DNA
- α-SMA, α-smooth muscle actin
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Affiliation(s)
- Atsushi Kurata
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, Japan
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, Japan
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35
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Tsuneishi R, Saku N, Miyata S, Akiyama S, Javaregowda PK, Ite K, Takashima N, Toyoda M, Kimura T, Kuroda M, Nakazawa A, Kasahara M, Nonaka H, Kamiya A, Kiyono T, Yamauchi J, Umezawa A. Ammonia-based enrichment and long-term propagation of zone I hepatocyte-like cells. Sci Rep 2021; 11:11381. [PMID: 34059723 PMCID: PMC8166824 DOI: 10.1038/s41598-021-90708-3] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 05/17/2021] [Indexed: 12/12/2022] Open
Abstract
Ammonia has a cytotoxic effect and can therefore be used as a selection agent for enrichment of zone I hepatocytes. However, it has not yet been determined whether ammonia-treated hepatocyte-like cells are able to proliferate in vitro. In this study, we employed an ammonia selection strategy to purify hepatocyte-like cells that were differentiated from human embryonic stem cells (ESCs) and from induced pluripotent stem cells (iPSCs). The resistance to cytotoxicity or cell death by ammonia is likely attributable to the metabolism of ammonia in the cells. In addition to ammonia metabolism-related genes, ammonia-selected hepatocytes showed increased expression of the cytochrome P450 genes. Additionally, the ammonia-selected cells achieved immortality or at least an equivalent life span to human pluripotent stem cells without affecting expression of the liver-associated genes. Ammonia treatment in combination with in vitro propagation is useful for obtaining large quantities of hepatocytes.
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Affiliation(s)
- Ruri Tsuneishi
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Laboratory of Molecular Neuroscience and Neurology, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Noriaki Saku
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Shoko Miyata
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Saeko Akiyama
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Palaksha Kanive Javaregowda
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenta Ite
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Nagisa Takashima
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Masashi Toyoda
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Research Team for Geriatric Medicine (Vascular Medicine), Tokyo Metropolitan Institute of Gerontology, Tokyo, 173-0015, Japan
| | - Tohru Kimura
- Laboratory of Stem Cell Biology, Department of Biosciences, Kitasato University School of Science, Kanagawa, 252-0373, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Atsuko Nakazawa
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.,Saitama Children's Medical Center, Saitama, 330-8777, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Tokyo, 157-8535, Japan
| | - Hidenori Nonaka
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Akihide Kamiya
- Department of Molecular Life Sciences, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa, 259-1193, Japan
| | - Tohru Kiyono
- Project for Prevention of HPV-Related Cancer, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, 277-8577, Japan
| | - Junji Yamauchi
- Laboratory of Molecular Neuroscience and Neurology, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Akihiro Umezawa
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
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Watanabe N, Ohno SI, Sakuma M, Kuriwaki M, Miura M, Kuroda M. A case report on death from acute bacterial cholangitis accompanied by von Meyenburg complexes: Use of 16S rRNA gene sequencing to identify pathogenic microbes from postmortem formalin-fixed, paraffin-embedded tissue. Medicine (Baltimore) 2021; 100:e25526. [PMID: 33847675 PMCID: PMC8051965 DOI: 10.1097/md.0000000000025526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 03/25/2021] [Indexed: 01/04/2023] Open
Abstract
RATIONALE In some cases, autopsy is the first opportunity to find a previously unrecognized critical infection. Pathogens are identified by various methods, such as microscopic examination, special stains, culture tests, and immunohistochemistry. Here, we report a case of 16S ribosomal RNA (rRNA) gene sequencing using a postmortem formalin-fixed, paraffin-embedded (FFPE) tissue, which was useful for identifying pathogenic microbes. PATIENT CONCERNS Autopsy was performed on an 87-year-old man who had chronic renal failure and had developed sepsis from a central venous catheter infection 10 days before his death. Prior to these events, von Meyenburg complexes (VMCs) were also found during regular checkups. DIAGNOSIS Postmortem microscopic examination revealed acute purulent cholangitis with numerous microabscesses, accompanied by VMCs. Gram-negative rods were observed in some microabscesses, which were considered causative pathogens. INTERVENTIONS 16S rRNA gene sequencing using postmortem FFPE tissue. OUTCOMES Pseudomonas aeruginosa was identified, different from the one detected in the central venous catheter culture while alive. LESSONS 16S rRNA gene sequencing is a useful tool for identifying pathogenic microbes in postmortem FFPE tissues. This technique may be useful for amplicon sizes of approximately 100 bp or less.
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Asakage M, Usui Y, Nezu N, Shimizu H, Tsubota K, Yamakawa N, Takanashi M, Kuroda M, Goto H. Comprehensive miRNA Analysis Using Serum From Patients With Noninfectious Uveitis. Invest Ophthalmol Vis Sci 2021; 61:4. [PMID: 32876691 PMCID: PMC7476662 DOI: 10.1167/iovs.61.11.4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Purpose MicroRNAs (miRNAs) are noncoding RNAs and have attracted attention as a biomarker in a variety of diseases. However, extensive unbiased miRNAs analysis in patients with uveitis has not been completely explored. In the present study, we comprehensively analyzed the deregulated miRNAs in three major forms of uveitis (Behҫet's disease [BD], sarcoidosis and Vogt–Koyanagi–Harada disease [VKH]) to search for potential biomarkers. Methods This study included 10 patients with BD, 17 patients with sarcoidosis, and 13 patients with VKH. Eleven healthy subjects were used as controls. The miRNAs expression levels were studied by microarray using serum samples from patients with uveitis and healthy controls. Results A total of 281 upregulated miRNAs and 137 downregulated miRNAs were detected in patients with BD, 35 upregulated miRNAs and 86 downregulated miRNAs in patients with sarcoidosis, and 153 upregulated miRNAs and 35 downregulated miRNAs in patients with VKH. Some deregulated miRNAs were involved in the mitogen-activated protein kinase signaling pathway and inflammatory cytokine pathways. Furthermore, we identified miR-4708-3p, miR-4323, and let-7g-3p as the best predictor miRNAs for BD, sarcoidosis, and VKH, respectively. Panels of miRNAs with diagnostic potential for the three diseases were generated using machine learning. Conclusions In this study, comprehensive miRNA analysis identified deregulated miRNAs in three major forms of noninfectious uveitis. This study provides new insights into molecular pathogenetic mechanisms and useful information toward developing novel diagnostic biomarkers and therapeutic targets for BD, sarcoidosis, and VKH.
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Affiliation(s)
- Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hiroyuki Shimizu
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Masakatsu Takanashi
- Department of Molecular pathology Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular pathology Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
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Umezu T, Takanashi M, Murakami Y, Ohno SI, Kanekura K, Sudo K, Nagamine K, Takeuchi S, Ochiya T, Kuroda M. Acerola exosome-like nanovesicles to systemically deliver nucleic acid medicine via oral administration. Mol Ther Methods Clin Dev 2021; 21:199-208. [PMID: 33850951 PMCID: PMC8010214 DOI: 10.1016/j.omtm.2021.03.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 03/06/2021] [Indexed: 12/19/2022]
Abstract
Extracellular vesicles derived from mammalian cells could be useful carriers for drug delivery systems (DDSs); however, with regard to clinical application, there are several issues to be overcome. Acerola (Malpighia emarginata DC.) is a popular health food. In this study, the feasibility of orally administered nucleic acid drug delivery by acerola exosome-like nanoparticles (AELNs) was examined. AELNs were recovered from acerola juice using an affinity column instead of ultracentrifugation. MicroRNA (miRNA) was sufficiently encapsulated in AELNs by 30-min incubation on ice and was protected against RNase, strong acid, and base treatments. The administration of an AELN/miRNA mixture in cells achieved downregulation of the miRNA’s target gene, and this mixture showed cytoplasmic localization. AELNs orally delivered small RNA to the digestive system in vivo. The target gene-suppressing effect in the small intestine and liver peaked 1 day after administration, indicating potential for use as an oral DDS for nucleic acid in the digestive system.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | | | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Katsuko Sudo
- Preclinical Research Center, Tokyo Medical University, Tokyo, Japan
| | - Kenichi Nagamine
- Research and Development, Global Innovation Center, Nichirei Biosciences inc, Tokyo, Japan
| | - Shin Takeuchi
- Research and Development, Global Innovation Center, Nichirei Biosciences inc, Tokyo, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
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Shimada Y, Matsubayashi J, Saito A, Ohira T, Kuroda M, Ikeda N. Small RNA sequencing to differentiate lung squamous cell carcinomas from metastatic lung tumors from head and neck cancers. PLoS One 2021; 16:e0248206. [PMID: 33668046 PMCID: PMC7935561 DOI: 10.1371/journal.pone.0248206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 02/22/2021] [Indexed: 12/21/2022] Open
Abstract
Distinguishing lung squamous cell carcinoma (LSQCC) from a solitary metastatic lung tumor (MSQCC) from head and neck squamous cell carcinoma (HNSQCC) presents a difficult diagnostic challenge even after detailed pathological assessment. Treatment options and estimated survival outcomes after pulmonary resection differ between patients with LSQCC and MSQCC. This study aimed to investigate whether microRNA (miRNA) profiling by RNA sequencing of HNSQCC, MSQCC, and LSQCC was useful for differential diagnosis of MSQCC and LSQCC. RNA sequencing was performed to identify bioinformatically significant miRNAs from a formalin-fixed paraffin-embedded (FFPE) block from a derivation set. MiRNA levels were confirmed by validation sets using FFPE samples and serum extracellular vesicles from patients. Step-wise discriminant analysis and canonical discriminant analysis identified 13 miRNAs by which the different expression patterns of LSQCC, MSQCC, and HNSQCC groups were demonstrated. Six miRNAs (miR-10a/28/141/320b/3120) were assessed in validation sets, and 4 miRNAs (miR-10a/28/141/3120) were significantly upregulated in LSQCCs compared with MSQCCs and HNSQCCs. Serum extracellular vesicles from LSQCC patients demonstrated significantly elevated miR-10a (p = .042), miR-28 (p = .041), and miR-3120 (p = .047) levels compared with those from MSQCC patients. RNA sequencing is useful for differential diagnosis of LSQCC and MSQCC, and the expression level of miR-10a, miR-28, and miR-3120 in serum extracellular vesicles are promising noninvasive tools for this purpose.
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Affiliation(s)
- Yoshihisa Shimada
- Department of Thoracic Surgery, Tokyo Medical University, Tokyo, Japan
- * E-mail:
| | - Jun Matsubayashi
- Department of Anatomical Pathology, Tokyo Medical University, Tokyo, Japan
| | - Akira Saito
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuo Ohira
- Department of Thoracic Surgery, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Norihiko Ikeda
- Department of Thoracic Surgery, Tokyo Medical University, Tokyo, Japan
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Mizoguchi I, Ohashi M, Hasegawa H, Chiba Y, Orii N, Inoue S, Kawana C, Xu M, Sudo K, Fujita K, Kuroda M, Hashimoto SI, Matsushima K, Yoshimoto T. EBV-induced gene 3 augments IL-23Rα protein expression through a chaperone calnexin. J Clin Invest 2021; 130:6124-6140. [PMID: 32809973 DOI: 10.1172/jci122732] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/07/2018] [Accepted: 08/05/2020] [Indexed: 12/27/2022] Open
Abstract
Epstein-Barr virus-induced gene 3 (EBI3) is a subunit common to IL-27, IL-35, and IL-39. Here, we explore an intracellular role of EBI3 that is independent of its function in cytokines. EBI3-deficient naive CD4+ T cells had reduced IFN-γ production and failed to induce T cell-dependent colitis in mice. Similarly reduced IFN-γ production was observed in vitro in EBI3-deficient CD4+ T cells differentiated under pathogenic Th17 polarizing conditions with IL-23. This is because the induction of expression of one of the IL-23 receptor (IL-23R) subunits, IL-23Rα, but not another IL-23R subunit, IL-12Rβ1, was selectively decreased at the protein level, but not the mRNA level. EBI3 augmented IL-23Rα expression via binding to the chaperone molecule calnexin and to IL-23Rα in a peptide-dependent manner, but not a glycan-dependent manner. Indeed, EBI3 failed to augment IL-23Rα expression in the absence of endogenous calnexin. Moreover, EBI3 poorly augmented the expression of G149R, an IL-23Rα variant that protects against the development of human colitis, because binding of EBI3 to the variant was reduced. Taken together with the result that EBI3 expression is inducible in T cells, the present results suggest that EBI3 plays a critical role in augmenting IL-23Rα protein expression via calnexin under inflammatory conditions.
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Affiliation(s)
- Izuru Mizoguchi
- Department of Immunoregulation, Institute of Medical Science
| | - Mio Ohashi
- Department of Immunoregulation, Institute of Medical Science
| | | | - Yukino Chiba
- Department of Immunoregulation, Institute of Medical Science
| | - Naoko Orii
- Department of Immunoregulation, Institute of Medical Science
| | - Shinya Inoue
- Department of Immunoregulation, Institute of Medical Science
| | - Chiaki Kawana
- Department of Immunoregulation, Institute of Medical Science
| | - Mingli Xu
- Department of Immunoregulation, Institute of Medical Science
| | | | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Shin-Ichi Hashimoto
- Department of Laboratory Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Ishikawa, Japan
| | - Kouji Matsushima
- Department of Molecular Preventive Medicine, School of Medicine, University of Tokyo, Tokyo, Japan
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Nezu N, Usui Y, Saito A, Shimizu H, Asakage M, Yamakawa N, Tsubota K, Wakabayashi Y, Narimatsu A, Umazume K, Maruyama K, Sugimoto M, Kuroda M, Goto H. Machine Learning Approach for Intraocular Disease Prediction Based on Aqueous Humor Immune Mediator Profiles. Ophthalmology 2021; 128:1197-1208. [PMID: 33484732 DOI: 10.1016/j.ophtha.2021.01.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 06/02/2020] [Revised: 12/20/2020] [Accepted: 01/14/2021] [Indexed: 01/02/2023] Open
Abstract
PURPOSE Various immune mediators have crucial roles in the pathogenesis of intraocular diseases. Machine learning can be used to automatically select and weigh various predictors to develop models maximizing predictive power. However, these techniques have not yet been applied extensively in studies focused on intraocular diseases. We evaluated whether 5 machine learning algorithms applied to the data of immune-mediator levels in aqueous humor can predict the actual diagnoses of 17 selected intraocular diseases and identified which immune mediators drive the predictive power of a machine learning model. DESIGN Cross-sectional study. PARTICIPANTS Five hundred twelve eyes with diagnoses from among 17 intraocular diseases. METHODS Aqueous humor samples were collected, and the concentrations of 28 immune mediators were determined using a cytometric bead array. Each immune mediator was ranked according to its importance using 5 machine learning algorithms. Stratified k-fold cross-validation was used in evaluation of algorithms with the dataset divided into training and test datasets. MAIN OUTCOME MEASURES The algorithms were evaluated in terms of precision, recall, accuracy, F-score, area under the receiver operating characteristic curve, area under the precision-recall curve, and mean decrease in Gini index. RESULTS Among the 5 machine learning models, random forest (RF) yielded the highest classification accuracy in multiclass differentiation of 17 intraocular diseases. The RF prediction models for vitreoretinal lymphoma, acute retinal necrosis, endophthalmitis, rhegmatogenous retinal detachment, and primary open-angle glaucoma achieved the highest classification accuracy, precision, and recall. Random forest recognized vitreoretinal lymphoma, acute retinal necrosis, endophthalmitis, rhegmatogenous retinal detachment, and primary open-angle glaucoma with the top 5 F-scores. The 3 highest-ranking relevant immune mediators were interleukin (IL)-10, interferon-γ-inducible protein (IP)-10, and angiogenin for prediction of vitreoretinal lymphoma; monokine induced by interferon γ, interferon γ, and IP-10 for acute retinal necrosis; and IL-6, granulocyte colony-stimulating factor, and IL-8 for endophthalmitis. CONCLUSIONS Random forest algorithms based on 28 immune mediators in aqueous humor successfully predicted the diagnosis of vitreoretinal lymphoma, acute retinal necrosis, and endophthalmitis. Overall, the findings of the present study contribute to increased knowledge on new biomarkers that potentially can facilitate diagnosis of intraocular diseases in the future.
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Affiliation(s)
- Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan.
| | - Akira Saito
- Department of AI Applied Quantitative Clinical Science, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Shimizu
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | | | - Akitomo Narimatsu
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Kazuhiko Umazume
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Katsuhiko Maruyama
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
| | - Masahiro Sugimoto
- Research and Development Center for Minimally Invasive Therapies, Institute of Medical Science, Tokyo Medical University, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University Hospital, Tokyo, Japan
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Kumagai K, Takanashi M, Ohno SI, Harada Y, Fujita K, Oikawa K, Sudo K, Ikeda SI, Nishi H, Oikawa K, Kuroda M. WAPL induces cervical intraepithelial neoplasia modulated with estrogen signaling without HPV E6/E7. Oncogene 2021; 40:3695-3706. [PMID: 33947962 PMCID: PMC8154587 DOI: 10.1038/s41388-021-01787-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 03/30/2021] [Accepted: 04/12/2021] [Indexed: 02/03/2023]
Abstract
Since cervical cancer still afflicts women around the world, it is necessary to understand the underlying mechanism of cervical cancer development. Infection with HPV is essential for the development of cervical intraepithelial neoplasia (CIN). In addition, estrogen receptor signaling is implicated in the development of cervical cancer. Previously, we have isolated human wings apart-like (WAPL), which is expected to cause chromosomal instability in the process of HPV-infected precancerous lesions to cervical cancer. However, the role of WAPL in the development of CIN is still unknown. In this study, in order to elucidate the role of WAPL in the early lesion, we established WAPL overexpressing mice (WAPL Tg mice) and HPV E6/E7 knock-in (KI) mice. WAPL Tg mice developed CIN lesion without HPV E6/E7. Interestingly, in WAPL Tg mice estrogen receptor 1 (ESR1) showed reduction as compared with the wild type, but cell growth factors MYC and Cyclin D1 controlled by ESR1 expressed at high levels. These results suggested that WAPL facilitates sensitivity of ESR1 mediated by some kind of molecule, and as a result, affects the expression of MYC and Cyclin D1 in cervical cancer cells. To detect such molecules, we performed microarray analysis of the uterine cervix in WAPL Tg mice, and focused MACROD1, a co-activator of ESR1. MACROD1 expression was increased in WAPL Tg mice compared with the wild type. In addition, knockdown of WAPL induced the downregulation of MACROD1, MYC, and Cyclin D1 but not ESR1 expression. Furthermore, ESR1 sensitivity assay showed lower activity in WAPL or MACROD1 downregulated cells than control cells. These data suggested that WAPL increases ESR1 sensitivity by activating MACROD1, and induces the expression of MYC and Cyclin D1. Therefore, we concluded that WAPL not only induces chromosomal instability in cervical cancer tumorigenesis, but also plays a key role in activating estrogen receptor signaling in early tumorigenesis.
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Affiliation(s)
- Katsuyoshi Kumagai
- grid.410793.80000 0001 0663 3325Pre-clinical Research Center, Tokyo Medical University, Tokyo, Japan
| | - Masakatsu Takanashi
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Shin-ichiro Ohno
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Yuichirou Harada
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Koji Fujita
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Keiki Oikawa
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
| | - Katsuko Sudo
- grid.410793.80000 0001 0663 3325Pre-clinical Research Center, Tokyo Medical University, Tokyo, Japan
| | - Shun-ichi Ikeda
- Department of Obstetrics and Gynecology, Kohseichuo General Hospital, Tokyo, Japan
| | - Hirotaka Nishi
- grid.410793.80000 0001 0663 3325Department of Obstetrics and Gynecology, Tokyo Medical University, Tokyo, Japan
| | - Kosuke Oikawa
- grid.412857.d0000 0004 1763 1087Department of Pathology, Wakayama Medical University, Wakayama, Japan
| | - Masahiko Kuroda
- grid.410793.80000 0001 0663 3325Department of Molecular Pathology, Tokyo Medical University, Tokyo, Japan
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Umezu T, Tsuneyama K, Kanekura K, Hayakawa M, Tanahashi T, Kawano M, Taguchi YH, Toyoda H, Tamori A, Kuroda M, Murakami Y. Comprehensive analysis of liver and blood miRNA in precancerous conditions. Sci Rep 2020; 10:21766. [PMID: 33303811 PMCID: PMC7728755 DOI: 10.1038/s41598-020-78500-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023] Open
Abstract
Streptozotocin administration to mice (STZ-mice) induces type I diabetes and hepatocellular carcinoma (HCC). We attempted to elucidate the carcinogenic mechanism and the miRNA expression status in the liver and blood during the precancerous state. Serum and liver tissues were collected from STZ-mice and non-treated mice (CTL-mice) at 6, 10, and 12 W. The exosome enriched fraction extracted from serum was used. Hepatic histological examination and hepatic and exosomal miRNA expression analysis were serially performed using next-generation sequencing (NGS). Human miRNA expression analysis of chronic hepatitis liver tissue and exosomes, which were collected before starting the antiviral treatment, were also performed. No inflammation or fibrosis was found in the liver of CTL-mice during the observation period. In STZ-mice, regeneration and inflammation of hepatocytes was found at 6 W and nodules of atypical hepatocytes were found at 10 and 12 W. In the liver tissue, during 6-12 W, the expression levels of let-7f-5p, miR-143-3p, 148a-3p, 191-5p, 192-5p, 21a-5p, 22-3p, 26a-5p, and 92a-3p was significantly increased in STZ-mice, and anti-oncogenes of their target gene candidates were down-regulated. miR-122-5p was also significantly down-regulated in STZ-mice. Fifteen exosomal miRNAs were upregulated in STZ-mice. Six miRNAs (let-7f-5p, miR-10b-5p, 143-3p, 191-5p, 21a-5p, and 26a-5p) were upregulated, similarly to human HCC cases. From the precancerous state, aberrant expression of hepatic miRNAs has already occurred, and then, it can promote carcinogenesis. In exosomes, the expression pattern of common miRNAs between mice and humans before carcinogenesis was observed and can be expected to be developed as a cancer predictive marker.
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Affiliation(s)
- Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Koichi Tsuneyama
- Department of Pathology and Laboratory Medicine, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Kohsuke Kanekura
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Michiyo Hayakawa
- Department of Pathology and Cell Regulation, Kyoto Prefectural University of Medicine, Kyoto, 602-0841, Japan
| | | | - Mitsuoki Kawano
- Department of Human Nutrition, Faculty of Contemporary Life Science, Chugokugakuen University, Okayama, 701-0197, Japan
| | - Y-H Taguchi
- Department of Physics, Chuo University, Tokyo, 112-8551, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology, Ogaki Municipal Hospital, Ogaki, 503-8502, Japan
| | - Akihiro Tamori
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, 545-8585, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshiki Murakami
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku 6-1-1, Shinjuku-ku, Tokyo, 160-8402, Japan.
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Tsujimaru K, Takanashi M, Sudo K, Ishikawa A, Mineo S, Ueda S, Kumagai K, Kuroda M. Extracellular microvesicles that originated adipose tissue derived mesenchymal stem cells have the potential ability to improve rheumatoid arthritis on mice. Regen Ther 2020; 15:305-311. [PMID: 33426233 PMCID: PMC7770341 DOI: 10.1016/j.reth.2020.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/22/2020] [Accepted: 08/27/2020] [Indexed: 01/12/2023] Open
Abstract
Introduction Mesenchymal stem cells (MSCs) are promising therapeutic tools in regenerative medicine. In particularly adipose tissue derived MSC (AMSC) has powerful potential for the therapeutics of rheumatoid arthritis (RA) because these cells can control immune balance. RA systemically occurs autoimmune disease. Interestingly, IL-1 receptor antagonist deficient (IL-1ra-/-) mice induce inflammation in joints like RA. In RA therapy, although AMSC improves the inflammation activity, it is little known to play roles of extracellular microvesicles (EV) for improvement of RA. To clarify the MSC-derived EVs are involved amelioration mechanisms for RA by themselves, we examined the functional effects of development for RA by AMSC-EVs. Methods We isolated AMSCs derived mice adipose tissue and purified EVs from the culture supernatant of AMSCs. To examine whether EVs can improve RA, we administrated EVs or AMSCs to IL-1ra knockout mice as RA model mice. We analyzed EVs-included factor by western blot methods and RA improvement effect by ELISA. Results In this study, we showed that the swellings of joints on mice in wild type AMSC and that in AMSC-EVs decreased than that in IL-1ra-/- mice-AMSC-EVs and in none-treated. We detected IL-1ra expression in AMSC-EVs in wild type mice but not that in IL-1ra-/- mice. Proinflammatory cytokine expression changes in mice showed in AMSCs and AMSC-EVs, but no apparent differences cytokine expressions were detected in IL-1ra-/- mice. Conclusions In this study, we concluded that MSCs might improve RA by the transferring of factors such as IL-1ra, which are included their MSC derived- EVs.
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Affiliation(s)
| | | | - Katsuko Sudo
- Preclinical Research Center, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Akio Ishikawa
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Shoichiro Mineo
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Shinobu Ueda
- Department of Molecular Pathology, Tokyo Medical University, Japan
| | - Katsuyoshi Kumagai
- Preclinical Research Center, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Japan
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Asakage M, Usui Y, Nezu N, Shimizu H, Tsubota K, Umazume K, Yamakawa N, Umezu T, Suwanai H, Kuroda M, Goto H. Comprehensive Gene Analysis of IgG4-Related Ophthalmic Disease Using RNA Sequencing. J Clin Med 2020; 9:jcm9113458. [PMID: 33121169 PMCID: PMC7693346 DOI: 10.3390/jcm9113458] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 02/06/2023] Open
Abstract
High-throughput RNA sequencing (RNA-seq) uses massive parallel sequencing technology, allowing the unbiased analysis of genome-wide transcription levels and tumor mutation status. Immunoglobulin G4-related ophthalmic disease (IgG4-ROD) is a fibroinflammatory disease characterized by the enlargement of the ocular adnexal tissues. We analyzed RNA expression levels via RNA-seq in the biopsy specimens of three patients diagnosed with IgG4-ROD. Mucosa-associated lymphoid tissue (MALT) lymphoma, reactive lymphoid hyperplasia (RLH), normal lacrimal gland tissue, and adjacent adipose tissue were used as the controls (n = 3 each). RNA-seq was performed using the NextSeq 500 system, and genes with |fold change| ≥ 2 and p < 0.05 relative to the controls were defined as differentially expressed genes (DEGs) in IgG4-ROD. To validate the results of RNA-seq, real-time polymerase chain reaction (PCR) was performed in 30 IgG4-ROD and 30 orbital MALT lymphoma tissue samples. RNA-seq identified 35 up-regulated genes, including matrix metallopeptidase 12 (MMP12) and secreted phosphoprotein 1 (SPP1), in IgG4-ROD tissues when compared to all the controls. Many pathways related to the immune system were included when compared to all the controls. Expressions of MMP12 and SPP1 in IgG4-ROD tissues were confirmed by real-time PCR and immunohistochemistry. In conclusion, we identified novel DEGs, including those associated with extracellular matrix degradation, fibrosis, and inflammation, in IgG4-ROD biopsy specimens. These data provide new insights into molecular pathogenetic mechanisms and may contribute to the development of new biomarkers for diagnosis and molecular targeted drugs.
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Affiliation(s)
- Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
- Correspondence: ; Tel.: +81-3-3342-6111
| | - Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Hiroyuki Shimizu
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Kazuhiko Umazume
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Tomohiro Umezu
- Department of Molecular Pathology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.U.); (M.K.)
| | - Hirotsugu Suwanai
- Department of Diabetes, Metabolism and Endocrinology, Tokyo Medical University, 6-7-1 Nishi-shinjuku Shinjuku-ku, Tokyo 160-0023, Japan;
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.U.); (M.K.)
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.A.); (N.N.); (H.S.); (K.T.); (K.U.); (N.Y.); (H.G.)
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Muguruma M, Teraoka S, Miyahara K, Ueda A, Asaoka M, Okazaki M, Kawate T, Kuroda M, Miyagi Y, Ishikawa T. Differences in drug sensitivity between two-dimensional and three-dimensional culture systems in triple-negative breast cancer cell lines. Biochem Biophys Res Commun 2020; 533:268-274. [PMID: 32958246 DOI: 10.1016/j.bbrc.2020.08.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 10/23/2022]
Abstract
Three-dimensional (3D) culture reflects tumor biology complexities compared with two-dimensional (2D) culture. Thus, 3D culture has attracted attention in cell biology studies including drug sensitivity tests. Herein, we investigated differences in anticancer drug sensitivities between 2D and 3D culture systems in triple-negative breast cancer (TNBC) cell lines. Thirteen TNBC cell lines were maintained in 2D and 3D cultures for 3 days before drug exposure. Cell morphology in the 3D culture was examined by phase-contrast microscopy. Sensitivities to epirubicin (EPI), cisplatin (CDDP), and docetaxel (DTX) were investigated by cell viability assay in both cultures and compared. The IC50s of all 3 drugs were significantly higher in the 3D culture than in the 2D culture in most cell lines. Those were correlated between the 2D and 3D cultures in EPI (R = 0.555) and CDDP (R = 0.955), but not in DTX (R = 0.221). Round spheroid-forming cells were more resistant to agents than grape-like types. In conclusion, 3D culture was more resistant to all 3 drugs than 2D culture in most TNBC cell lines. Sensitivity to CDDP was highly correlated between the 2D and 3D cultures, but not to DTX. 2D culture may be acceptable for sensitivity test for DNA-damaging agents.
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Affiliation(s)
- Masako Muguruma
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Saeko Teraoka
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Kana Miyahara
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Ai Ueda
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Mariko Asaoka
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Miki Okazaki
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takahiko Kawate
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-1-1 Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yohei Miyagi
- Molecular Pathology and Genetics Division, Kanagawa Cancer Center Research Institute, 2-3-2 Nakao, Asahi-ku, Yokohama, Kanagawa, 241-8515, Japan
| | - Takashi Ishikawa
- Department of Breast Oncology and Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
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Ohno S, Oikawa K, Harada Y, Kuroda M. Abstract 4818: miR-34-AGO-TNRC6A complex transcriptionally up-regulates BLU tumor suppressor via binding of a novel promoter-associated lncRNA in lung cancer. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-4818] [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: 11/16/2022]
Abstract
Abstract
We focused on genes whose expression is induced by miR-34a, a potent tumor suppressor microRNA (miRNA) in lung cancer and many other types of cancer, and sought to elucidate the mechanisms underlying the tumor suppressor function of miR-34a. We found that the miR-34a inhibited the proliferation of lung cancer cells by inducing expression of the BLU(also known as ZMYND10) tumor suppressor. The next-generation sequencing analysis of RNA extracted from lung cancer tissues identified a novel divergent lncRNA expressed from promoter of BLUthat include two predicted miR-34 binding sites. Interestingly, miR-34a failed to induce the BLUtranscription in the mutants lacking these miR-34 binding sites in the lncRNA. In addition, the miR-34-AGO-TNRC6A complex induced transcription of BLUby binding to the lncRNA. This non-canonical miRNA pathway, which induces gene expression via cooperation between an miRNA and promoter-associated lncRNA, is a previously unknown tumor suppression mechanism of miR-34a.
Citation Format: Shinichiro Ohno, Keiki Oikawa, Yuichirou Harada, Masahiko Kuroda. miR-34-AGO-TNRC6A complex transcriptionally up-regulates BLU tumor suppressor via binding of a novel promoter-associated lncRNA in lung cancer [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 4818.
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Miyahara K, Takano N, Yamada Y, Kazama H, Tokuhisa M, Hino H, Fujita K, Barroga E, Hiramoto M, Handa H, Kuroda M, Ishikawa T, Miyazawa K. Abstract 296: BRCA1 degradation in response to mitochondrial damage in breast cancer cells. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-296] [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: 11/16/2022]
Abstract
Abstract
The tumor suppressor BRCA1 protein has been implicated in hereditary breast and ovarian cancer syndrome when its gene is mutated. Among the many functions of BRCA1 including DNA repair, transcriptional regulation, cell cycle checkpoint, apoptosis, chromatin remodeling, and centrosome replication, DNA double-strand breaks repair by homologous recombination (HR) is one of the most important. BRCA1-associated tumors increase DNA instability and become sensitive to the Poly (ADP-ribose) polymerase (PARP) inhibitor. It is well known that PTEN-induced kinase 1 (PINK1) and Parkin are involved in mitochondrial quality control and a variety of mutations in these genes causes early-onset Parkinson's disease. In the present study, we report a novel degradation mechanism for BRCA1 protein in response to mitochondrial damage.
While investigating the role of BRCA1 in mitophagy using a breast cancer cell line, we found that BRCA1 protein is rapidly degraded by the mitochondrial targeting reagents, which induce mitochondrial depolarization. The degradation was mediated by the ubiquitin-proteasome system through the direct interaction with the E3 ligase Parkin upon PINK1 upregulation in response to the mitochondrial damage. Moreover, BRCA1 knockdown repressed cancer cell growth. Immunostaining the specimens from breast cancer patients revealed higher BRCA1 and lower PINK1/Parkin expression in their mammary glands. This result correlates with the analysis using the mRNA expression data set from TCGA database. Additionally, BRCA1 expression inversely correlated with PINK1/Parkin expression in the case of relapse-free survival in breast cancer patients. Thus, these findings demonstrated the unanticipated physiological functions of BRCA1 for maintaining cancer cell growth.
Overall, our study shows that: 1) Degradation of BRCA1 due to PINK1-Parkin activity through the ubiquitin-proteasome system occurs in response to mitochondrial damage. 2) BRCA1 promotes the growth of breast cancer cells. 3) Immunostaining of patient specimens and cancer genome data set analysis revealed higher BRCA1 expression with lower PINK1/Parkin expression was observed in the cancerous mammary glands. Moreover, recent reports have suggested that BRCA1 is involved in the pathogenesis of Alzheimer's disease. Thus, transmission of mitochondrial damage to the nucleus causing nuclear DNA double-strand breaks via the PINK1-Parkin-BRCA1 axis may not only be seen in the field of oncology, but also in various other fields including neurodegenerative diseases.
Citation Format: Kana Miyahara, Naoharu Takano, Yumiko Yamada, Hiromi Kazama, Mayumi Tokuhisa, Hirotsugu Hino, Koji Fujita, Edward Barroga, Masaki Hiramoto, Hiroshi Handa, Masahiko Kuroda, Takashi Ishikawa, Keisuke Miyazawa. BRCA1 degradation in response to mitochondrial damage in breast cancer cells [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 296.
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Nezu N, Usui Y, Asakage M, Shimizu H, Tsubota K, Narimatsu A, Umazume K, Yamakawa N, Ohno SI, Takanashi M, Kuroda M, Goto H. Distinctive Tissue and Serum MicroRNA Profile of IgG4-Related Ophthalmic Disease and MALT Lymphoma. J Clin Med 2020; 9:jcm9082530. [PMID: 32764512 PMCID: PMC7464164 DOI: 10.3390/jcm9082530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 06/28/2020] [Revised: 07/23/2020] [Accepted: 07/31/2020] [Indexed: 12/24/2022] Open
Abstract
The molecular pathogenesis of orbital lymphoproliferative disorders, such as immunoglobulin G4-related ophthalmic disease (IgG4-ROD) and orbital mucosa-associated lymphoid tissue (MALT) lymphoma, remains essentially unknown. Differentiation between the two disorders, which is important since the work-up and treatment can vary greatly, is often challenging due to the lack of specific biomarkers. Although miRNAs play an important role in the regulation of carcinogenesis and inflammation, the relationship between miRNA and orbital lymphoproliferative diseases remains unknown. We performed a comprehensive analysis of 2565 miRNAs from biopsy and serum specimens of 17 cases with IgG4-ROD, where 21 cases with orbital MALT lymphoma were performed. We identified specific miRNA signatures and their miRNA target pathways, as well as the network analysis for IgG4-ROD and orbital MALT lymphoma. Machine-learning analysis identified miR-202-3p and miR-7112-3p as the best discriminators of IgG4-ROD and orbital MALT lymphoma, respectively. Enrichment analyses of biological pathways showed that the longevity-regulating pathway in IgG4-ROD and the mitogen-activated protein kinase (MAPK) signaling pathway in orbital MALT lymphoma was most enriched by target genes of downregulated miRNAs. This is the first evidence of miRNA profiles of biopsy and serum specimens of patients with IgG4-ROD and orbital MALT lymphoma. These data will be useful for developing diagnostic and therapeutic interventions, as well as elucidating the pathogenesis of these disorders.
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Affiliation(s)
- Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
- Correspondence: ; Tel.: +81-3-3342-6111
| | - Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Hiroyuki Shimizu
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Akitomo Narimatsu
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Kazuhiko Umazume
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
| | - Shin-ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan; (S.-i.O.); (M.T.); (M.K.)
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan; (S.-i.O.); (M.T.); (M.K.)
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Tokyo 160-8402, Japan; (S.-i.O.); (M.T.); (M.K.)
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University, Tokyo 160-0023, Japan; (N.N.); (M.A.); (H.S.); (K.T.); (A.N.); (K.U.); (N.Y.); (H.G.)
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Minezaki T, Usui Y, Asakage M, Takanashi M, Shimizu H, Nezu N, Narimatsu A, Tsubota K, Umazume K, Yamakawa N, Kuroda M, Goto H. High-Throughput MicroRNA Profiling of Vitreoretinal Lymphoma: Vitreous and Serum MicroRNA Profiles Distinct from Uveitis. J Clin Med 2020; 9:jcm9061844. [PMID: 32545709 PMCID: PMC7356511 DOI: 10.3390/jcm9061844] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 01/01/2023] Open
Abstract
Purpose: Vitreoretinal lymphoma (VRL) is a non-Hodgkin lymphoma of the diffuse large B cell type (DLBCL), which is an aggressive cancer causing central nervous system related mortality. The pathogenesis of VRL is largely unknown. The role of microRNAs (miRNAs) has recently acquired remarkable importance in the pathogenesis of many diseases including cancers. Furthermore, miRNAs have shown promise as diagnostic and prognostic markers of cancers. In this study, we aimed to identify differentially expressed miRNAs and pathways in the vitreous and serum of patients with VRL and to investigate the pathogenesis of the disease. Materials and Methods: Vitreous and serum samples were obtained from 14 patients with VRL and from controls comprising 40 patients with uveitis, 12 with macular hole, 14 with epiretinal membrane, 12 healthy individuals. The expression levels of 2565 miRNAs in serum and vitreous samples were analyzed. Results: Expression of the miRNAs correlated significantly with the extracellular matrix (ECM) ‒receptor interaction pathway in VRL. Analyses showed that miR-326 was a key driver of B-cell proliferation, and miR-6513-3p could discriminate VRL from uveitis. MiR-1236-3p correlated with vitreous interleukin (IL)-10 concentrations. Machine learning analysis identified miR-361-3p expression as a discriminator between VRL and uveitis. Conclusions: Our findings demonstrate that aberrant microRNA expression in VRL may affect the expression of genes in a variety of cancer-related pathways. The altered serum miRNAs may discriminate VRL from uveitis, and serum miR-6513-3p has the potential to serve as an auxiliary tool for the diagnosis of VRL.
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Affiliation(s)
- Teruumi Minezaki
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Yoshihiko Usui
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
- Correspondence:
| | - Masaki Asakage
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.T.); (M.K.)
| | - Hiroyuki Shimizu
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Naoya Nezu
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Akitomo Narimatsu
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Kinya Tsubota
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Kazuhiko Umazume
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Naoyuki Yamakawa
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (M.T.); (M.K.)
| | - Hiroshi Goto
- Department of Ophthalmology, Tokyo Medical University, 6-7-1 Nishi-shinjuku, Shinjuku-ku, Tokyo 160-0023, Japan; (T.M.); (M.A.); (H.S.); (N.N.); (A.N.); (K.T.); (K.U.); (N.Y.); (H.G.)
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