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Tanaka Y, Sato-Matsubara M, Tsuruta D, Tanaka H, Kadono C, Sugawara K, Kawada N, Wakamatsu K, Ito S, Yoshizato K. Cytoglobin functions as a redox regulator of melanogenesis in normal epidermal melanocytes. Pigment Cell Melanoma Res 2024; 37:276-285. [PMID: 37920136 DOI: 10.1111/pcmr.13146] [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: 05/15/2023] [Revised: 09/21/2023] [Accepted: 10/15/2023] [Indexed: 11/04/2023]
Abstract
Epidermal melanocytes are continuously exposed to sunlight-induced reactive oxygen species (ROS) and oxidative stress generated during the synthesis of melanin. Therefore, they have developed mechanisms that maintain normal redox homeostasis. Cytoglobin (CYGB), a ubiquitously expressed intracellular iron hexacoordinated globin, exhibits antioxidant activity and regulates the redox state of mammalian cells through its activities as peroxidase and nitric oxide (NO) dioxygenase. We postulated that CYGB functions in the melanogenic process as a regulator that maintains oxidative stress within a physiological level. This was examined by characterizing normal human melanocytes with the knockdown (KD) of CYGB using morphological and molecular biological criteria. CYGB-KD cells were larger, had more dendrites, and generated more melanin granules in the advanced stages of melanogenesis than control cells. The expression levels of major melanogenesis-associated genes and proteins were higher in CYGB-KD melanocytes than in wild type (WT) cells. As expected, CYGB-KD melanocytes generated more ROS and NO than WT cells. In conclusion, CYGB physiologically contributes to maintaining redox homeostasis in the melanogenic activity of normal melanocytes by controlling the intracellular levels of ROS and NO.
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Affiliation(s)
- Yo Tanaka
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya, Japan
| | - Misako Sato-Matsubara
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Donated Synthetic Biology Laboratory, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Daisuke Tsuruta
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Tanaka
- Research Laboratories, Nippon Menard Cosmetic Co., Ltd., Nagoya, Japan
| | - Chiho Kadono
- Donated Synthetic Biology Laboratory, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Koji Sugawara
- Department of Dermatology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Kazumasa Wakamatsu
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Japan
| | - Shosuke Ito
- Institute for Melanin Chemistry, Fujita Health University, Toyoake, Japan
| | - Katsutoshi Yoshizato
- Donated Synthetic Biology Laboratory, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
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Okina Y, Sato-Matsubara M, Kido Y, Urushima H, Daikoku A, Kadono C, Nakagama Y, Nitahara Y, Hoang TH, Thuy LTT, Matsubara T, Ohtani N, Ikeda K, Yoshizato K, Kawada N. Nitric Oxide Derived from Cytoglobin-Deficient Hepatic Stellate Cells Causes Suppression of Cytochrome c Oxidase Activity in Hepatocytes. Antioxid Redox Signal 2023; 38:463-479. [PMID: 36112670 PMCID: PMC10025843 DOI: 10.1089/ars.2021.0279] [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] [Indexed: 11/13/2022]
Abstract
Aims: Cell-cell interactions between hepatocytes (Hep) and other liver cells are key to maintaining liver homeostasis. Cytoglobin (CYGB), expressed exclusively by hepatic stellate cells (HSC), is essential in mitigating mitochondrial oxidative stress. CYGB absence causes Hep dysfunction and evokes hepatocarcinogenesis through an elusive mechanism. CYGB deficiency is speculated to hinder nitric oxide dioxygenase (NOD) activity, resulting in the elevated formation and release of nitric oxide (NO). Hence, we hypothesized that NO accumulation induced by the loss of NOD activity in CYGB-deficient HSC could adversely affect mitochondrial function in Hep, leading to disease progression. Results: NO, a membrane-permeable gas metabolite overproduced by CYGB-deficient HSC, diffuses into the neighboring Hep to reversibly inhibit cytochrome c oxidase (CcO), resulting in the suppression of respiratory function in an electron transport chain (ETC). The binding of NO to CcO is proved using purified CcO fractions from Cygb knockout (Cygb-/-) mouse liver mitochondria. Its inhibitory action toward CcO-specific activity is fully reversed by the external administration of oxyhemoglobin chasing away the bound NO. Thus, these findings indicate that the attenuation of respiratory function in ETC causes liver damage through the formation of excessive reactive oxygen species. Treating Cygb-/- mice with an NO synthase inhibitor successfully relieved NO-induced inhibition of CcO activity in vivo. Innovation and Conclusion: Our findings provide a biochemical link between CYGB-absence in HSC and neighboring Hep dysfunction; mechanistically the absence of CYGB in HSC causes mitochondrial dysfunction of Hep via the inhibition of CcO activity by HSC-derived NO. Antioxid. Redox Signal. 38, 463-479.
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Affiliation(s)
- Yoshinori Okina
- Department of Medical Biochemistry, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Misako Sato-Matsubara
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Endowed Laboratory of Synthetic Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Yasutoshi Kido
- Department of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Research Center for Infectious Disease Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Hayato Urushima
- Department of Anatomy and Regenerative Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Atsuko Daikoku
- Department of Anatomy and Regenerative Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Chiho Kadono
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Yu Nakagama
- Department of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Research Center for Infectious Disease Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Yuko Nitahara
- Department of Virology and Parasitology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- Research Center for Infectious Disease Sciences, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Truong Huu Hoang
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Le Thi Thanh Thuy
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Tsutomu Matsubara
- Department of Anatomy and Regenerative Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Naoko Ohtani
- Department of Pathophysiology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Kazuo Ikeda
- Department of Anatomy and Regenerative Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Katsutoshi Yoshizato
- Endowed Laboratory of Synthetic Biology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
- BioIntegrence Co., Ltd., Osaka, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
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Yoshizato K, Taira T, Sato-Matsubara M, Sekiguchi S, Yabunaka Y, Kira Y, Ohashi T, Daikoku A, Ofusa K, Kadono C, Oikawa D, Matsubara T, Nakagama Y, Kido Y, Tokunaga F, Ikeda K, Kaneko A, Kawada N. Cloaking the ACE2 receptor with salivary cationic proteins inhibits SARS-CoV-2 entry. J Biochem 2022; 172:205-216. [PMID: 35792074 PMCID: PMC9278198 DOI: 10.1093/jb/mvac054] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 06/27/2022] [Indexed: 11/12/2022] Open
Abstract
Abstract
Saliva contributes to the innate immune system, which suggests that it can prevent SARS-CoV-2 entry. We studied the ability of healthy salivary proteins to bind to angiotensin-converting enzyme 2 (ACE2) using biolayer interferometry and pull-down assays. Their effects on binding between the receptor-binding domain of the SARS-CoV-2 spike protein S1 (S1) and ACE2 were determined using an enzyme-linked immunosorbent assay. Saliva bound to ACE2 and disrupted the binding of S1 to ACE2 and four ACE2-binding salivary proteins were identified, including cationic histone H2A and neutrophil elastase, which inhibited the S1-ACE2 interaction. Calf thymus histone (ct-histone) also inhibited binding as effectively as histone H2A. The results of a cell-based infection assay indicated that ct-histone suppressed SARS-CoV-2 pseudoviral invasion into ACE2-expressing host cells. Manufactured polypeptides, such as ε-poly-L-lysine, also disrupted S1-ACE2 binding, indicating the importance of the cationic properties of salivary proteins in ACE2 binding. Overall, we demonstrated that positively-charged salivary proteins are a barrier against SARS-CoV-2 entry by cloaking the negatively-charged surface of ACE2, and provided a view that the cationic polypeptides represent a preventative and therapeutic treatment against COVID-19.
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Affiliation(s)
- Katsutoshi Yoshizato
- Osaka Metropolitan University Donated Laboratory for Synthetic Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
- Osaka Metropolitan University BioIntegrence Co., Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Toshio Taira
- Sapporo Division, Cosmo Bio Co., Ltd. , Otaru, Hokkaido 047-0261, Japan
| | - Misako Sato-Matsubara
- Osaka Metropolitan University Donated Laboratory for Synthetic Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
- Osaka Metropolitan University Department of Hepatology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Shizuko Sekiguchi
- Sapporo Division, Cosmo Bio Co., Ltd. , Otaru, Hokkaido 047-0261, Japan
| | - Yoriko Yabunaka
- Osaka Metropolitan University Department of Research Support Platform, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Yukimi Kira
- Osaka Metropolitan University Department of Research Support Platform, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Tetsu Ohashi
- Sapporo Division, Cosmo Bio Co., Ltd. , Otaru, Hokkaido 047-0261, Japan
| | - Atsuko Daikoku
- Osaka Metropolitan University Anatomy and Regenerative Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Ken Ofusa
- Osaka Metropolitan University Laboratory of Foods and Life Sciences, IDEA Consultants, Inc., Osaka, Osaka 559-8519, Japan; 8 Department of Pathobiochemistry, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Chiho Kadono
- Osaka Metropolitan University Donated Laboratory for Synthetic Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
- Osaka Metropolitan University Department of Hepatology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Daisuke Oikawa
- Osaka Metropolitan University Department of Parasitology and Research Center for Infectious Disease Sciences, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Tsutomu Matsubara
- Osaka Metropolitan University Anatomy and Regenerative Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Yu Nakagama
- Osaka Metropolitan University Department of Parasitology and Research Center for Infectious Disease Sciences, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Yasutoshi Kido
- Osaka Metropolitan University Department of Parasitology and Research Center for Infectious Disease Sciences, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Fuminori Tokunaga
- Osaka Metropolitan University Department of Parasitology and Research Center for Infectious Disease Sciences, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Kazuo Ikeda
- Osaka Metropolitan University Anatomy and Regenerative Biology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Akira Kaneko
- Osaka Metropolitan University Department of Parasitology and Research Center for Infectious Disease Sciences, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
| | - Norifumi Kawada
- Osaka Metropolitan University Department of Hepatology, Graduate School of Medicine, , Osaka, Osaka 545-8585, Japan
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Dat NQ, Thuy LTT, Hieu VN, Hai H, Hoang DV, Thi Thanh Hai N, Thuy TTV, Komiya T, Rombouts K, Dong MP, Hanh NV, Hoang TH, Sato‐Matsubara M, Daikoku A, Kadono C, Oikawa D, Yoshizato K, Tokunaga F, Pinzani M, Kawada N. Hexa Histidine-Tagged Recombinant Human Cytoglobin Deactivates Hepatic Stellate Cells and Inhibits Liver Fibrosis by Scavenging Reactive Oxygen Species. Hepatology 2021; 73:2527-2545. [PMID: 33576020 PMCID: PMC8251927 DOI: 10.1002/hep.31752] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/25/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIMS Antifibrotic therapy remains an unmet medical need in human chronic liver disease. We report the antifibrotic properties of cytoglobin (CYGB), a respiratory protein expressed in hepatic stellate cells (HSCs), the main cell type involved in liver fibrosis. APPROACH AND RESULTS Cygb-deficient mice that had bile duct ligation-induced liver cholestasis or choline-deficient amino acid-defined diet-induced steatohepatitis significantly exacerbated liver damage, fibrosis, and reactive oxygen species (ROS) formation. All of these manifestations were attenuated in Cygb-overexpressing mice. We produced hexa histidine-tagged recombinant human CYGB (His-CYGB), traced its biodistribution, and assessed its function in HSCs or in mice with advanced liver cirrhosis using thioacetamide (TAA) or 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC). In cultured HSCs, extracellular His-CYGB was endocytosed and accumulated in endosomes through a clathrin-mediated pathway. His-CYGB significantly impeded ROS formation spontaneously or in the presence of ROS inducers in HSCs, thus leading to the attenuation of collagen type 1 alpha 1 production and α-smooth muscle actin expression. Replacement the iron center of the heme group with cobalt nullified the effect of His-CYGB. In addition, His-CYGB induced interferon-β secretion by HSCs that partly contributed to its antifibrotic function. Momelotinib incompletely reversed the effect of His-CYGB. Intravenously injected His-CYGB markedly suppressed liver inflammation, fibrosis, and oxidative cell damage in mice administered TAA or DDC mice without adverse effects. RNA-sequencing analysis revealed the down-regulation of inflammation- and fibrosis-related genes and the up-regulation of antioxidant genes in both cell culture and liver tissues. The injected His-CYGB predominantly localized to HSCs but not to macrophages, suggesting specific targeting effects. His-CYGB exhibited no toxicity in chimeric mice with humanized livers. CONCLUSIONS His-CYGB could have antifibrotic clinical applications for human chronic liver diseases.
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Affiliation(s)
- Ninh Quoc Dat
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan,Department of PediatricsHanoi Medical UniversityHanoiVietnam
| | - Le Thi Thanh Thuy
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Vu Ngoc Hieu
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Hoang Hai
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Dinh Viet Hoang
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | | | - Tuong Thi Van Thuy
- Biological Resources Vinmec Tissue BankVinmec Healthcare SystemHanoiVietnam
| | - Tohru Komiya
- Department of BiologyFaculty of ScienceOsaka City UniversityOsakaJapan
| | - Krista Rombouts
- Regenerative Medicine and Fibrosis GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free HospitalLondonUnited Kingdom
| | - Minh Phuong Dong
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Ngo Vinh Hanh
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Truong Huu Hoang
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | | | - Atsuko Daikoku
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Chiho Kadono
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Daisuke Oikawa
- Department of PathobiochemistryGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Katsutoshi Yoshizato
- Academic Advisor’s OfficePhoenixBio Co., Ltd.HiroshimaJapan,Endowed Laboratory of Synthetic BiologyGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Fuminori Tokunaga
- Department of PathobiochemistryGraduate School of MedicineOsaka City UniversityOsakaJapan
| | - Massimo Pinzani
- Regenerative Medicine and Fibrosis GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free HospitalLondonUnited Kingdom
| | - Norifumi Kawada
- Department of HepatologyGraduate School of MedicineOsaka City UniversityOsakaJapan,Regenerative Medicine and Fibrosis GroupInstitute for Liver and Digestive HealthUniversity College LondonRoyal Free HospitalLondonUnited Kingdom
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5
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Maeda M, Seto T, Kadono C, Morimoto H, Kida S, Suga M, Nakamura M, Kataoka Y, Hamazaki T, Shintaku H. Autophagy in the Central Nervous System and Effects of Chloroquine in Mucopolysaccharidosis Type II Mice. Int J Mol Sci 2019; 20:ijms20235829. [PMID: 31757021 PMCID: PMC6928680 DOI: 10.3390/ijms20235829] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 12/22/2022] Open
Abstract
Mucopolysaccharidosis type II (MPS II) is a rare lysosomal storage disease (LSD) involving a genetic error in iduronic acid-2-sulfatase (IDS) metabolism that leads to accumulation of glycosaminoglycans within intracellular lysosomes. The primary treatment for MPS II, enzyme replacement therapy, is not effective for central nervous system (CNS) symptoms, such as intellectual disability, because the drugs do not cross the blood-brain barrier. Recently, autophagy has been associated with LSDs. In this study, we examined the morphologic relationship between neuronal damage and autophagy in IDS knockout mice using antibodies against subunit c of mitochondrial adenosine triphosphate (ATP) synthetase and p62. Immunohistological changes suggesting autophagy, such as vacuolation, were observed in neurons, microglia, and pericytes throughout the CNS, and the numbers increased over postnatal development. Oral administration of chloroquine, which inhibits autophagy, did not suppress damage to microglia and pericytes, but greatly reduced neuronal vacuolation and eliminated neuronal cells with abnormal inclusions. Thus, decreasing autophagy appears to prevent neuronal degeneration. These results suggest that an autophagy modulator could be used in addition to conventional enzyme replacement therapy to preserve the CNS in patients with MPS II.
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Affiliation(s)
- Mitsuyo Maeda
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Hyogo 650-0047, Japan; (M.S.); (M.N.); (Y.K.)
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Hyogo 650-0047, Japan
- Correspondence: (T.S.); (M.M.); Tel.: +81-66-645-3816 (T.S.); +81-78-304-7160 (M.M.)
| | - Toshiyuki Seto
- Department of Medical Genetics, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan; (C.K.); (T.H.); (H.S.)
- Correspondence: (T.S.); (M.M.); Tel.: +81-66-645-3816 (T.S.); +81-78-304-7160 (M.M.)
| | - Chiho Kadono
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan; (C.K.); (T.H.); (H.S.)
| | - Hideto Morimoto
- JCR Pharmaceuticals Co., Ltd., Hyogo 659-0021, Japan; (H.M.); (S.K.)
| | - Sachiho Kida
- JCR Pharmaceuticals Co., Ltd., Hyogo 659-0021, Japan; (H.M.); (S.K.)
| | - Mitsuo Suga
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Hyogo 650-0047, Japan; (M.S.); (M.N.); (Y.K.)
- Japan Electron Optics Laboratory (JEOL) Ltd., Tokyo 196-8558, Japan
| | - Motohiro Nakamura
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Hyogo 650-0047, Japan; (M.S.); (M.N.); (Y.K.)
- Japan Electron Optics Laboratory (JEOL) Ltd., Tokyo 196-8558, Japan
| | - Yosky Kataoka
- Multi-Modal Microstructure Analysis Unit, RIKEN-JEOL Collaboration Center, Hyogo 650-0047, Japan; (M.S.); (M.N.); (Y.K.)
- Laboratory for Cellular Function Imaging, RIKEN Center for Biosystems Dynamics Research, Hyogo 650-0047, Japan
| | - Takashi Hamazaki
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan; (C.K.); (T.H.); (H.S.)
| | - Haruo Shintaku
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan; (C.K.); (T.H.); (H.S.)
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Thi Thanh Hai N, Thuy LTT, Shiota A, Kadono C, Daikoku A, Hoang DV, Dat NQ, Sato-Matsubara M, Yoshizato K, Kawada N. Selective overexpression of cytoglobin in stellate cells attenuates thioacetamide-induced liver fibrosis in mice. Sci Rep 2018; 8:17860. [PMID: 30552362 PMCID: PMC6294752 DOI: 10.1038/s41598-018-36215-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 08/02/2018] [Accepted: 11/15/2018] [Indexed: 02/07/2023] Open
Abstract
Cytoglobin (CYGB), discovered in hepatic stellate cells (HSCs), is known to possess a radical scavenger function, but its pathophysiological roles remain unclear. Here, for the first time, we generated a new transgenic (TG) mouse line in which both Cygb and mCherry reporter gene expression were under the control of the native Cygb gene promoter. We demonstrated that the expression of Cygb-mCherry was related to endogenous Cygb in adult tissues by tracing mCherry fluorescence together with DNA, mRNA, and protein analyses. Administration of a single dose (50 mg/kg) of thioacetamide (TAA) in Cygb-TG mice resulted in lower levels of alanine transaminase and oxidative stress than those in WT mice. After 10 weeks of TAA administration, Cygb-TG livers exhibited reduced neutrophil accumulation, cytokine expression and fibrosis but high levels of quiescent HSCs. Primary HSCs isolated from Cygb-TG mice (HSCCygb-TG) exhibited significantly decreased mRNA levels of α-smooth muscle actin (αSMA), collagen 1α1, and transforming growth factor β-3 after 4 days in culture relative to WT cells. HSCsCygb-TG were resistant to H2O2-induced αSMA expression. Thus, cell-specific overexpression of Cygb attenuates HSC activation and protects mice against TAA-induced liver fibrosis presumably by maintaining HSC quiescence. Cygb is a potential new target for antifibrotic approaches.
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Affiliation(s)
- Nguyen Thi Thanh Hai
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
- Department of Biochemistry, Hanoi Medical University, Hanoi, Vietnam
| | - Le Thi Thanh Thuy
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | | | - Chiho Kadono
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Atsuko Daikoku
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Dinh Viet Hoang
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Ninh Quoc Dat
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Misako Sato-Matsubara
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Katsutoshi Yoshizato
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
- PhoenixBio Co. Ltd., Hiroshima, Japan
- Endowed Laboratory of Synthetic Biology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Norifumi Kawada
- Departments of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan.
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7
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Maeda M, Namikawa K, Kobayashi I, Ohba N, Takahara Y, Kadono C, Tanaka A, Kiyama H. Targeted gene therapy toward astrocytoma using a Cre/loxP-based adenovirus system. Brain Res 2006; 1081:34-43. [PMID: 16529724 DOI: 10.1016/j.brainres.2006.01.105] [Citation(s) in RCA: 13] [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: 07/25/2005] [Revised: 01/12/2006] [Accepted: 01/22/2006] [Indexed: 11/27/2022]
Abstract
The aim of this study was to establish a novel adenovirus-based gene therapy system targeting astrocytoma. For this purpose, the Cre recombinase (Cre)/loxP system together with the astrocytoma-specific promoter for GFAP were used. We constructed an adenovirus (Ad) vector that expressed Cre under the control of the GFAP promoter (AxGFAPNCre), as well as another Ad vector containing a switching unit. The latter vector contained a stuffer sequence encoding GFP (AxCALGLTK) with a functional polyadenylation signal between two loxP sites, followed by the herpes simplex virus thymidine kinase (HSV-TK) gene under the control of the CAG promoter. In this system, gene expression of either the stuffer sequence (GFP) or the downstream gene (HSV-TK) was switched on by co-expression of Cre recombinase. Western blot analysis demonstrated specific expression of high levels of TK protein in C6 glioma cells after co-infection of AxGFAPNCre and AxCALGLTK. In vivo, AxGFAPNCre/AxCALGLTK injection into C6 gliomas in the subcutaneous tissue of nude mice followed by intraperitoneal ganciclovir (GCV) treatment significantly suppressed tumor growth compared with control mice. Co-infection of AxGFAPNCre and AxCALNLLacZ resulted in LacZ expression in C6 glioma cells and some reactive astrocytes, whereas GFP was expressed in other cell types surrounding the injected site. Furthermore, a combination of AxGFAPNCre/AxCALGLTK and intraperitoneal GCV injection significantly regressed intracranial C6 gliomas in the rat striatum and prolonged the survival time compared with control rats. The present results indicate that this cell-type-specific gene therapy using a Cre/loxP adenovirus system is both operational and effective, at least against astrocytoma.
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Affiliation(s)
- Mitsuyo Maeda
- Department of Anatomy, Graduate School of Medicine, Osaka City University, 1-4-3, Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
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8
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Maeda M, Ampo KI, Kiryu-Seo S, Konishi H, Ohba N, Kadono C, Kiyama H. The p53-independent nuclear translocation of Cyclin G1 in degenerating neurons by ischemic and traumatic insults. Exp Neurol 2005; 193:350-60. [PMID: 15869937 DOI: 10.1016/j.expneurol.2005.01.018] [Citation(s) in RCA: 10] [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: 09/28/2004] [Revised: 12/24/2004] [Accepted: 01/04/2005] [Indexed: 11/21/2022]
Abstract
Cyclin G1 (CG1) was identified as a p53-transactivated target gene, and yet its physiological and pathological roles have been unclear. Here, we demonstrate that CG1 is translocated from cytoplasm to the nuclei of neurons in response to variety of injuries. In the normal matured rodent brain, CG1 immunoreactivity was hardly observed; however, some brain injuries exhibited intense CG1 immunoreactivity in the nuclei of the damaged neurons. Transient common carotid artery occlusion (CCAO) in the gerbil showed strong CG1-like immunoreactivity in the hippocampal CA1 neurons, and permanent middle cerebral artery occlusion (MCAO) in the mouse showed strong CG1-like immunoreactivity in the nuclei of neurons located in the ischemic brain regions. TUNEL staining did not exactly overlap with the CG1-positive cells, but overlapped highly with Fluoro-Jade B staining, a degeneration marker. Brain trauma caused by knife cut, cold injury, and kinate injection also showed CG1 accumulation in the neuronal nuclei located near the injury site. These observations were obtained in p53-deficient mice as well, suggesting that the accumulation of CG1 in the injured neurons is p53-independent. A similar nuclear translocation of endogenous CG1 was confirmed in a primary culture of cortical neurons when a toxic level of N-methyl-D-aspartate (NMDA) was applied. These results demonstrate that nuclear translocation of CG1 from cytoplasmic region occurs in damaged and degenerating neurons in a p53-independent manner, and the CG1 nuclear staining could be a good marker for the neurons received fatal damages.
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Affiliation(s)
- Mitsuyo Maeda
- Department of Anatomy, Graduate School of Medicine, Osaka City University, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
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Shiotani A, Fukumura M, Maeda M, Hou X, Inoue M, Kanamori T, Komaba S, Washizawa K, Fujikawa S, Yamamoto T, Kadono C, Watabe K, Fukuda H, Saito K, Sakai Y, Nagai Y, Kanzaki J, Hasegawa M. Skeletal muscle regeneration after insulin-like growth factor I gene transfer by recombinant Sendai virus vector. Gene Ther 2001; 8:1043-50. [PMID: 11526451 DOI: 10.1038/sj.gt.3301486] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2000] [Accepted: 03/31/2001] [Indexed: 11/09/2022]
Abstract
We scrutinized the applicability and efficacy of Sendai virus (SeV) vectors expressing either LacZ or human insulin-like growth factor-I (hIGF-I) in gene transfer into skeletal muscle. Seven days after the intramuscular injection of LacZ/SeV X-gal labeled myofibers were demonstrated in rat anterior tibialis muscle with/without bupivacaine treatment and the transgene expression persisted up to 1 month after injection. Recombinant hIGF-I was detected as a major protein species in culture supernatants of a neonatal rat myoblast cell line L6 and thus induced the cells to undergo myogenetic differentiation. The introduction of hIGF-I/SeV into the muscle showed a significant increase in regenerating and split myofibers which were indicative of hypertrophy, and also an increase in the total number of myofibers, in comparison to that seen in the LacZ/SeV-treated control muscle. These results demonstrate that SeV achieves high-level transgene expression in skeletal muscle, and that hIGF-I gene transfer using SeV vector may therefore have great potential in the treatment of neuromuscular disorders.
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Affiliation(s)
- A Shiotani
- Department of Otolaryngology, Head and Neck Surgery, Keio University School of Medicine, Tokyo, Japan
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