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Yamada R, Michimae M, Hamamoto A, Takemori H. Melanin-concentrating hormone receptor 1 is discarded by exosomes after internalization. Biochem Biophys Res Commun 2024; 710:149917. [PMID: 38604071 DOI: 10.1016/j.bbrc.2024.149917] [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: 03/14/2024] [Revised: 04/01/2024] [Accepted: 04/06/2024] [Indexed: 04/13/2024]
Abstract
Melanin-concentrating hormone (MCH) receptor 1 (MCHR1), a G protein-coupled receptor, is poised for interaction with its ligands on the plasma membrane. Analyses of MCHR1 knockout mice suggest that this receptor could be a therapeutic target for the treatment of appetite disorders, glucose metabolism, psychiatric disorders, and inflammation. Binding of MCH to MCHR1 initiates calcium signaling, which is subsequently attenuated through receptor internalization. However, the ultimate destiny of the receptor post-internalization remains unexplored. In this study, we report the extracellular secretion of MCHR1 via exosomes. The recruitment of MCHR1 to exosomes occurs subsequent to its internalization, which is induced by stimulation with the ligand MCH. Although a highly glycosylated form of MCHR1, potentially representing a mature form, is selectively recruited to exosomes, the MCHR1 transferred into other cells does not exhibit functionality. The truncation of MCHR1 at the C-terminus not only impairs its response to MCH but also hinders its recruitment to exosomes. These findings imply that functional MCHR1 could be secreted extracellularly via exosomes, a process that may represent a mechanism for the termination of intracellular MCHR1 signaling.
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Affiliation(s)
- Ryohei Yamada
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Momoka Michimae
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; Graduate School of Integrated Arts and Sciences, Hiroshima University, Hiroshima, 739-8521, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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Furukawa S, Kawaguchi K, Chikama K, Yamada R, Kamatari YO, Lim LW, Koyama H, Inoshima Y, Ikemoto MJ, Yoshida S, Hirata Y, Furuta K, Takemori H. Simple methods for measuring milk exosomes using fluorescent compound GIF-2250/2276. Biochem Biophys Res Commun 2024; 696:149505. [PMID: 38219490 DOI: 10.1016/j.bbrc.2024.149505] [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: 11/30/2023] [Revised: 12/24/2023] [Accepted: 01/08/2024] [Indexed: 01/16/2024]
Abstract
Exosomes are small extracellular vesicles (EVs) found in culture supernatants, blood, and breast milk. The size of these nanocomplexes limits the methods of EV analyses. In this study, nitrobenzoxadiazole (NBD), a fluorophore, conjugated endosome-lysosome imager, GIF-2250 and its derivative, GIF-2276, were evaluated for exosome analyses. A correlation was established between GIF-2250 intensity and protein maker levels in bovine milk exosomes. We found that high-temperature sterilization milk may not contain intact exosomes. For precise analysis, we synthesized GIF-2276, which allows for the covalent attachment of NBD to the Lys residue of exosome proteins, and labeled milk exosomes were separated using a gel filtration system. GIF-2276 showed chromatographic peaks of milk exosomes containing >3 ng protein. The area (quantity) and retention time (size) of the exosome peaks were correlated to biological activity (NO synthesis suppression in RAW264.7 murine macrophages). Heat denaturation of purified milk-derived exosomes disrupted these indicators. Proteome analyses revealed GIF-2276-labeled immunomodulators, such as butyrophilin subfamily 1 member A1 and polymeric immunoglobulin receptor. The immunogenicity and quantity of these factors decreased by heat denaturation. When milk exosomes were purified from market-sourced milk we found that raw and low-temperature sterilization milk samples, contained exosomes (none in high-temperature sterilization milk). These results were also supported by transmission electron microscopy analyses. We also found that GIF-2276 could monitor exosome transportation into HEK293 cells. These results suggested that GIF-2250/2276 may be helpful to evaluate milk exosomes.
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Affiliation(s)
- Saho Furukawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kyoka Kawaguchi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kotomi Chikama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Ryohei Yamada
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yuji O Kamatari
- Life Science Research Center, Gifu University, Gifu, Gifu, 501-1193, Japan; The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Lee Wah Lim
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiroko Koyama
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yasuo Inoshima
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Mitsushi J Ikemoto
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8566, Japan; Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sports Sciences, University of Tsukuba, Tsukuba, 305-8574, Japan
| | - Saishi Yoshida
- Seki Gyunyu Co. Ltd, 41, Kannonmae, Seki, Gifu, 501-3835, Japan
| | - Yoko Hirata
- Life Science Research Center, Gifu University, Gifu, Gifu, 501-1193, Japan
| | - Kyoji Furuta
- GIFU EXOSOME Co. Ltd, 1-11-9, Yabuta-minani, Gifu, 500-8384, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan; GIFU EXOSOME Co. Ltd, 1-11-9, Yabuta-minani, Gifu, 500-8384, Japan.
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Sakurai A, Kawaguchi K, Watanabe M, Okajima S, Furukawa S, Koga K, Oh-Hashi K, Hirata Y, Furuta K, Takemori H. Melanosomal localization is required for GIF-2115/2250 to inhibit melanogenesis in B16F10 melanoma cells. Int J Cosmet Sci 2024. [PMID: 38327040 DOI: 10.1111/ics.12949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/02/2023] [Accepted: 01/10/2024] [Indexed: 02/09/2024]
Abstract
OBJECTIVE Tyrosinase inhibitors suppress melanogenesis in melanocytes. During a screening for tyrosinase inhibitors, however, we noticed some discrepancies in inhibitory efficacies between melanocytes and in vitro assays. The compound (S)-N-{3-[4-(dimethylamino)phenyl]propyl}-N-methyl-indan-1-amine (GIF-2115) exerts antioxidative stress activity upon accumulation in late endosomes and lysosomes. GIF-2115 was also identified as a potent antimelanogenic reagent in B16F10 mouse melanoma cells. GIF-2115 inhibited the activity of mushroom tyrosinase and the lysates of B16F10 cells. However, structure-activity relationship studies indicated that GIF-2238, which lacks the benzene ring in the aminoindan structure of GIF-2115, inhibited tyrosinase activity in vitro but did not inhibit melanogenesis in B16F10 cells. The aim of the present study is to show the importance of the intracellular distribution of tyrosinase inhibitors in exerting their antimelanogenic activity in melanocytes. METHODS The intracellular distribution of compounds was monitored by linking with the fluorescent group of 7-nitro-2,1,3-benzoxadiazole (NBD). To mislocalize GIF-2115 to mitochondria, the mitochondria-preferring fluoroprobe ATTO565 was used. RESULTS We reconfirmed the localization of GIF-2250 (GIF-2115-NBD) not only to matured but also to early-stage melanosomes. Although GIF-2286 (GIF-2238-NBD) maintained tyrosinase inhibitory activity, it did not show specific intracellular localization. Moreover, when GIF-2115 was linked with ATTO565, the resultant compound GIF-2265 did not inhibit melanogenesis in B16F10 cells, despite its strong tyrosinase inhibitory activity. CONCLUSION These results suggest that melanosomal localization is essential for the antimelanogenic activity of GIF-2115, and GIF-2115 derivatives may be new guides for drugs to endosomes and lysosomes as well as melanosomes.
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Affiliation(s)
- Ayumi Sakurai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Kyoka Kawaguchi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Miyu Watanabe
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Sayaka Okajima
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Saho Furukawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Kenichi Koga
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, Gifu, Japan
| | - Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | | | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, Gifu, Japan
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Emmanuela N, Muhammad DR, Iriawati, Wijaya CH, Ratnadewi YMD, Takemori H, Ana ID, Yuniati R, Handayani W, Wungu TDK, Tabata Y, Barlian A. Isolation of plant-derived exosome-like nanoparticles (PDENs) from Solanum nigrum L. berries and Their Effect on interleukin-6 expression as a potential anti-inflammatory agent. PLoS One 2024; 19:e0296259. [PMID: 38175845 PMCID: PMC10766179 DOI: 10.1371/journal.pone.0296259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/09/2023] [Indexed: 01/06/2024] Open
Abstract
Inflammation is a temporary response of the immune system that can be treated using common anti-inflammatory drugs. However, prolonged use of these drugs increases the risk of adverse side effects. Accordingly, there is an increasing need for alternative treatments for inflammation with fewer side effects. Exosomes are extracellular vesicles secreted by most eukaryotic cells and have been studied as a candidate for cell-free therapy for inflammatory diseases due to their immunomodulatory and anti-inflammatory properties. In recent years, the focus of exosome research has shifted from animal cell-derived exosomes to plant-derived exosome-like nanoparticles (PDENs). Plant-derived exosome-like nanoparticles (PDENs) are easier to obtain, have minimal safety concerns, and can be produced in higher quantities and lower cost than exosomes derived from animal cells. In this study, the isolation and analysis of the anti-inflammatory potential of PDENs from black nightshade berries (Solanum nigrum L.) were carried out. The results of isolation and characterization showed that PDENs had a spherical morphology, measuring around 107 nm with zeta potential of -0.6 mV, and had a protein concentration of 275.38 μg/mL. PDENs were also shown to be internalized by RAW264.7 macrophage cell line after 2 hours of incubation and had no cytotoxicity effect up to the concentration of 2.5 μg/mL. Furthermore, exposure to several doses of PDENs to the LPS-stimulated RAW264.7 cell significantly decreased the expression of pro-inflammatory cytokine gene IL-6, as well as the expression of IL-6 protein up to 97,28%. GC-MS analysis showed the presence of neral, a monoterpene compound with known anti-inflammatory properties, which may contribute to the anti-inflammatory activity of PDENs isolated from Solanum nigrum L. berries. Taken together, the present study was the first to isolate and characterize PDENs from Solanum nigrum L. berries. The results of this study also demonstrated the anti-inflammatory activity of PDEN by suppressing the production of IL-6 in LPS-stimulated RAW264.7 cells.
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Affiliation(s)
- Natasya Emmanuela
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, Indonesia
| | | | - Iriawati
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, Indonesia
| | | | | | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Ika Dewi Ana
- Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Ratna Yuniati
- Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
| | - Windri Handayani
- Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok, Indonesia
| | | | - Yasuhiko Tabata
- Department of Regeneration Science and Engineering Institute for Life and Medical Science (LiMe), Kyoto University, Kyoto, Japan
| | - Anggraini Barlian
- School of Life Sciences and Technology, Institut Teknologi Bandung, Bandung, Indonesia
- Research Center of Nanoscience and Nanotechnology, Institut Teknologi Bandung, Bandung, Indonesia
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Hirata Y, Hashimoto T, Ando K, Kamatari YO, Takemori H, Furuta K. Structural features localizing the ferroptosis inhibitor GIF-2197-r to lysosomes. RSC Adv 2023; 13:32276-32281. [PMID: 37928844 PMCID: PMC10620646 DOI: 10.1039/d3ra06611h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/30/2023] [Indexed: 11/07/2023] Open
Abstract
We previously reported that N,N-dimethylaniline derivatives are potent ferroptosis inhibitors. Among them, the novel aminoindan derivative GIF-2197-r (the racemate of GIF-2115 (R-form) and GIF-2196 (S-form)) is effective at a concentration of 0.01 μM due to its localization to lysosomes and ferrous ion coordination capacity. The current study demonstrates that the aliphatic tertiary amine moiety of GIF-2197-r is responsible for lysosomal localization. Although N,N-dimethylaniline derivatives cannot form chelate structures with Fe2+, density functional theory computation demonstrates that they can form stable monodentate complexes with a hydrated ferrous ion, likely due to the highly electron-rich nature of the (dialkylamino)phenyl ring. Furthermore, the results suggest that the aliphatic tertiary amine moiety contributes to stabilizing the complexation. These findings could prove useful for developing improved lysosomotropic ferroptosis inhibitors for neurodegenerative diseases.
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Affiliation(s)
- Yoko Hirata
- Life Science Research Center, Institute for Advanced Study, Gifu University Yanagido Gifu 501-1193 Japan
| | - Tomohiro Hashimoto
- Faculty of Regional Studies, Gifu University Yanagido Gifu 501-1193 Japan
| | - Kaori Ando
- Faculty of Regional Studies, Gifu University Yanagido Gifu 501-1193 Japan
| | - Yuji O Kamatari
- Life Science Research Center, Institute for Advanced Study, Gifu University Yanagido Gifu 501-1193 Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University Yanagido Gifu 501-1193 Japan
- Institute for Glyco-core Research (iGCORE), Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido Gifu 501-1193 Japan
- Graduate School of Natural Science and Technology, Gifu University Yanagido Gifu 501-1193 Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University Yanagido Gifu 501-1193 Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University Yanagido Gifu 501-1193 Japan
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Kawaguchi K, Watanabe M, Furukawa S, Koga K, Kanamori H, Ikemoto MJ, Takashima S, Maeda M, Oh-Hashi K, Hirata Y, Furuta K, Takemori H. Intermittent inhibition of FYVE finger-containing phosphoinositide kinase induces melanosome degradation in B16F10 melanoma cells. Mol Biol Rep 2023:10.1007/s11033-023-08536-9. [PMID: 37248430 DOI: 10.1007/s11033-023-08536-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 05/17/2023] [Indexed: 05/31/2023]
Abstract
BACKGROUND Melanosomes are lysosome-related organelles that contain melanogenic factors and synthesize melanin as they mature. FYVE finger-containing phosphoinositide kinase (PIKfyve) regulates late endosome and lysosome morphology, vesicle trafficking, and autophagy. In melanocytes, PIKfyve inhibition has been reported to induce hypopigmentation due to impairments in the metabolism of early-stage melanosomes. METHODS AND RESULTS Here, we report a new type of melanosome metabolism: post-PIKfyve inhibition, which was found during the characterization of the endosome/lysosome fluoroprobe GIF-2250. In B16F10 mouse melanoma cells, GIF-2250 highlighted vesicles positive for lysosomal-associated membrane protein 1 (lysosome marker) and other endosome/lysosome markers (CD63 and Rab7/9). When cells were continuously treated with PIKfyve inhibitors, intracellular vacuoles formed, while GIF-2250 fluorescence signals diminished and were diffusely distributed in the vacuoles. After removal of the PIKfyve inhibitors, the GIF-2250 signal intensity was restored, and some GIF-2250-positive vesicles wrapped the melanosomes, which spun at high speed. In addition, intermittent PIKfyve inhibition caused melanin diffusion in the vacuoles and possible leakage into the cytoplasmic compartments, and melanosome degradation was detected by a transmission electron microscope. Melanosome degradation was accompanied by decreased levels of melanin synthesis enzymes and increased levels of the autophagosome maker LC3BII, which is also associated with early melanosomes. However, the protein levels of p62, which is degraded during autophagy, were increased, suggesting an impairment in autophagy flux during intermittent PIKfyve inhibition. Moreover, the autophagy inhibitor 3-methyladenine does not affect these protein levels, suggesting that the melanosome degradation by the intermittent inhibition of PIKfyve is not mediated by canonical autophagy. CONCLUSIONS In conclusion, disturbance of PIKfyve activity induces melanosome degradation in a canonical autophagy-independent manner.
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Affiliation(s)
- Kyoka Kawaguchi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Miyu Watanabe
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Saho Furukawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kenichi Koga
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiromitsu Kanamori
- Department of Cardiology, Gifu University Graduate School of Medicine, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Mitsushi J Ikemoto
- Health and Medical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, 305-8566, Ibaraki, Japan
- Graduate School of Science, Toho University, 2-2-1 Miyama, Funabashi, 274-8510, Chiba, Japan
- Advanced Research Initiative for Human High Performance (ARIHHP), Faculty of Health and Sports Sciences, University of Tsukuba, Tsukuba, 305-8574, Japan
| | - Shigeo Takashima
- Institute for Glycocore Research (iGCORE), Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Miwa Maeda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
- The United Graduate School of Drug Discovery and Medical Information Sciences of Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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Takahashi M, Hamamoto A, Oh-Hashi K, Takemori H, Furuta K, Hirata Y. Antiferroptotic Activities of Oxindole GIF-0726-r Derivatives: Involvement of Ferrous Iron Coordination and Free-Radical Scavenging Capacities. ACS Chem Neurosci 2023; 14:1826-1833. [PMID: 37104649 DOI: 10.1021/acschemneuro.3c00042] [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: 04/29/2023] Open
Abstract
Ferroptosis and oxytosis are iron- and oxidative stress-dependent cell death pathways strongly implicated in neurodegenerative diseases, cancers, and metabolic disorders. Therefore, specific inhibitors may have broad clinical applications. We previously reported that 3-[4-(dimethylamino)benzyl]-2-oxindole (GIF-0726-r) and derivatives protected the mouse hippocampal cell line HT22 against oxytosis/ferroptosis by suppressing reactive oxygen species (ROS) accumulation. In this study, we evaluated the biological activities of GIF-0726-r derivatives with modifications at the oxindole skeleton and other positions. The addition of a methyl, nitro, or bromo group to C-5 of the oxindole skeleton enhanced antiferroptotic efficacy on HT22 cells during membrane cystine-glutamate antiporter inhibition and ensued intracellular glutathione depletion. In contrast, the substitution of the dimethylamino group on the side chain phenyl ring with a methyl, nitro, or amine group dramatically suppressed antiferroptotic activity regardless of other modifications. Compounds with antiferroptotic activity also directly scavenged ROS and decreased free ferrous ions in both HT22 cells and cell-free reactions while those compounds without antiferroptotic activity had little effect on either ROS or ferrous-ion concentration. Unlike oxindole compounds, which we have previously reported, the antiferroptotic compounds had little effect on the nuclear factor erythroid-2-related factor 2-antioxidant response element pathway. Oxindole GIF-0726-r derivatives with a 4-(dimethylamino)benzyl moiety at C-3 and some types of bulky group at C-5 (whether electron-donating or electron-withdrawing) can suppress ferroptosis, warranting safety and efficacy evaluations in animal models of disease.
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Affiliation(s)
- Mayu Takahashi
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
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8
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Sarasati A, Syahruddin MH, Nuryanti A, Ana ID, Barlian A, Wijaya CH, Ratnadewi D, Wungu TDK, Takemori H. Plant-Derived Exosome-like Nanoparticles for Biomedical Applications and Regenerative Therapy. Biomedicines 2023; 11:biomedicines11041053. [PMID: 37189671 DOI: 10.3390/biomedicines11041053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/07/2023] [Accepted: 03/09/2023] [Indexed: 03/31/2023] Open
Abstract
Plant-derived exosome-like nanoparticles (PDENs) comprise various bioactive biomolecules. As an alternative cell-free therapeutic approach, they have the potential to deliver nano-bioactive compounds to the human body, and thus lead to various anti-inflammatory, antioxidant, and anti-tumor benefits. Moreover, it is known that Indonesia is one of the herbal centers of the world, with an abundance of unexplored sources of PDENs. This encouraged further research in biomedical science to develop natural richness in plants as a source for human welfare. This study aims to verify the potential of PDENs for biomedical purposes, especially for regenerative therapy applications, by collecting and analyzing data from the latest relevant research and developments.
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9
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Mizoguchi M, Takemori H, Furukawa S, Ito M, Asai M, Morino H, Miura T, Yabe D, Shibata T. Increased expression of glucagon-like peptide-1 and cystic fibrosis transmembrane conductance regulator in the ileum and colon in mouse treated with metformin. Endocr J 2023; 70:149-159. [PMID: 36198615 DOI: 10.1507/endocrj.ej22-0260] [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: 11/23/2022] Open
Abstract
Metformin, an oral medication, is prescribed to patients with type 2 diabetes mellitus. Although the efficacy, safety, and low economic burden of metformin on patients have long been recognized, approximately 5% of the patients treated with this drug develop severe diarrhea and discontinue the treatment. We previously reported that 1,000 mg·kg-1·day-1 of metformin induced diarrhea in diabetic obese (db/db) mice and wood creosote (traditional medication for diarrhea) ameliorated the symptoms. In this study, we attempted to elucidate the molecular mechanisms by which metformin induces diarrhea. Cystic fibrosis transmembrane conductance regulator (CFTR) is a key ion (chloride) channel in cyclic adenosine monophosphate (cAMP)-induced diarrhea. Metformin treatment increased bile flow (bile acids and bilirubin) in the ileum of mice. In addition, the treatment was accompanied by an increase in mRNA and protein levels of CFTR in the mucosa of the ileum and colon in both wild-type (C57BL/6J) and db/db mice. Glucagon-like peptide-1 (GLP-1), as well as cholic acid, induces CFTR mRNA expression in human colon carcinoma Caco-2 cells through cAMP signaling. Although wood creosote (10 mg/kg) ameliorated diarrhea symptoms, it did not alter the mRNA levels of Glp-1 or Cftr. Similar to overeating, metformin upregulated GLP-1 and CFTR expression, which may have contributed to diarrhea symptoms in mice. Although we could not identify db/db mouse-specific factors associated with metformin-induced diarrhea, these factors may modulate colon function. Wood creosote may not interact with these factors but ameliorates diarrhea symptoms.
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Affiliation(s)
- Momoka Mizoguchi
- Department of Life Science and Chemistry, Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan
| | - Hiroshi Takemori
- Department of Life Science and Chemistry, Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193, Japan
| | - Saho Furukawa
- Department of Life Science and Chemistry, Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan
| | - Masafumi Ito
- Taiko Pharmaceutical Co., Ltd., Osaka 550-0005, Japan
| | - Mutsumi Asai
- Taiko Pharmaceutical Co., Ltd., Osaka 550-0005, Japan
| | | | | | - Daisuke Yabe
- Department of Diabetes, Endocrinology and Metabolism/Department of Rheumatology and Clinical Nutrition, Gifu University Graduate School of Medicine, Gifu 501-1193, Japan
| | - Takashi Shibata
- Taiko Pharmaceutical Co., Ltd., Osaka 550-0005, Japan
- Strategic Global Partnership Cross-Innovation Initiative, Graduate School of Medicine, Osaka University Hospital, Osaka 565-0871, Japan
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10
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Hirata Y, Oka K, Yamamoto S, Watanabe H, Oh-Hashi K, Hirayama T, Nagasawa H, Takemori H, Furuta K. Haloperidol Prevents Oxytosis/Ferroptosis by Targeting Lysosomal Ferrous Ions in a Manner Independent of Dopamine D2 and Sigma-1 Receptors. ACS Chem Neurosci 2022; 13:2719-2727. [PMID: 36050287 DOI: 10.1021/acschemneuro.2c00398] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Haloperidol is a widely used antipsychotic agent that exerts antipsychotic effects through a strong antagonism of dopamine D2 receptors. In addition, haloperidol is classified as a sigma-1 receptor (S1R) antagonist that prevents endogenous oxidative stress in cultured cells. However, pharmacological activities of haloperidol against oxidative stress remain unclear. Oxytosis/ferroptosis are iron-dependent nonapoptotic oxidative cell deaths that are regarded as two names for the same cell death pathway and the potential physiological relevance of oxytosis/ferroptosis in multiple diseases is suggested. In the present study, the effects of haloperidol on oxytosis/ferroptosis were investigated in S1R-knockdown mouse hippocampal HT22 cells. The results indicate that haloperidol is a strong inhibitor of oxytosis/ferroptosis independent of S1R. Imaging of HT22 cells with a newly developed fluorescent probe showed that haloperidol was localized to late endosomes and lysosomes and reduced the accumulation of lysosomal ferrous ions, resulting in reduced production of intracellular reactive oxygen species and inhibition of cell death. These results indicate that haloperidol is useful not only as an antipsychotic agent but also as a neuroprotective agent against endogenous oxidative stress via distinct mechanisms. Furthermore, lysosome-targeting ferroptosis inhibitors could be useful for the treatment of various diseases, including cancers, ischemia-reperfusion injury, and neurodegenerative disorders, which have been associated with ferroptosis.
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Affiliation(s)
- Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan.,United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193, Japan
| | - Kohei Oka
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Shotaro Yamamoto
- Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan
| | - Hiroki Watanabe
- Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan.,United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193, Japan
| | - Tasuku Hirayama
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Hideko Nagasawa
- Laboratory of Pharmaceutical and Medicinal Chemistry, Gifu Pharmaceutical University, Gifu 501-1196, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan.,United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Graduate School of Natural Science and Technology, Gifu University, Gifu 501-1193, Japan.,United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu 501-1193, Japan
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11
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Hirata Y, Okazaki R, Sato M, Oh-Hashi K, Takemori H, Furuta K. Effect of ferroptosis inhibitors oxindole-curcumin hybrid compound and N,N-dimethylaniline derivatives on rotenone-induced oxidative stress. Eur J Pharmacol 2022; 928:175119. [PMID: 35753403 DOI: 10.1016/j.ejphar.2022.175119] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/13/2022] [Accepted: 06/21/2022] [Indexed: 11/03/2022]
Abstract
Oxidative stress is common to multiple cell death pathways, including apoptosis. We recently identified several compounds that protect against ferroptosis, another cell death pathway associated with oxidative stress, suggesting potential efficacy against apoptosis. The present study assessed the protective efficacies of the ferroptosis inhibitors oxindole-curcumin hybrid compound GIF-2165X-G1, N,N-dimethylaniline derivatives GIF-2014 and GIF-2115, and ferrostatin-1 against rotenone-induced apoptosis. Treatment of mouse hippocampal HT22 cells with the mitochondrial transport chain inhibitor rotenone for 24 h reduced mitochondrial membrane potential, increased reactive oxygen species production, promoted nuclear fragmentation, and ultimately impaired cell viability, consistent with apoptosis. Ferroptosis inhibitor cotreatment did not prevent any of these rotenone-induced apoptotic processes but did suppress delayed cell death associated with loss of plasma membrane integrity. These results suggest that GIF-2165X-G1, GIF-2014, GIF-2115, and ferrostatin-1 are selective for ferroptosis and do not affect apoptosis. Thus, erastin-induced ferroptosis and rotenone-induced apoptosis are distinct cell death pathways despite the common involvement of mitochondrial oxidative stress. Further, the cytoprotective efficacies of chemical antioxidants may depend on the specific source of oxidative stress.
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Affiliation(s)
- Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan; Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan.
| | - Ruidai Okazaki
- Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Mina Sato
- Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan; Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan; Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan; Graduate School of Natural Science and Technology, Gifu University, Gifu, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan.
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12
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Takemori H, Koga K, Kawaguchi K, Furukawa S, Ito S, Imaishi J, Watanabe M, Maeda M, Mizoguchi M, Oh-Hashi K, Hirata Y, Furuta K. Visualization of mitophagy using LysoKK, a 7-nitro-2,1,3-benzoxadiazole-(arylpropyl)benzylamine derivative. Mitochondrion 2021; 62:176-180. [PMID: 34906750 DOI: 10.1016/j.mito.2021.12.004] [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: 09/23/2021] [Revised: 11/23/2021] [Accepted: 12/08/2021] [Indexed: 11/15/2022]
Abstract
7-Nitro-2,1,3-benzoxadiazole (NBD) is an environmentally responsive fluorophore. We have reported that GIF2114 and GIF2115, anti-ferroptotic N,N-dimethylaniline-compounds, localize to lysosome when they are visualized by NBD. Here we show that the NBD fluorescence of GIF2259, a hybrid derivative of GIF2114 and GIF2115, was quenched in aqueous buffer. However, the fluorescence was recovered when GIF2259 was localized on lysosomes. Although the dimethylamine group of GIF2259 is not essential for the lysosome localization, it contributes to a high specific/nonspecific ratio of fluorescence. Under a normal condition, the lysosomal signal visualized by GIF2259 did not overlap with mitochondria, while, under starved or depolarization conditions, it overlapped with mitochondria, suggesting that GIF2259 could be used as a simple tool for monitoring lysosomal metabolism and mitochondrial turnover, that is mitophagy.
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Affiliation(s)
- Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.
| | - Kenichi Koga
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Kyoka Kawaguchi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Saho Furukawa
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Seiya Ito
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Jun Imaishi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Miyu Watanabe
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Miwa Maeda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Momoka Mizoguchi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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13
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Yan H, Kanki H, Matsumura S, Kawano T, Nishiyama K, Sugiyama S, Takemori H, Mochizuki H, Sasaki T. MiRNA-132/212 regulates tight junction stabilization in blood-brain barrier after stroke. Cell Death Discov 2021; 7:380. [PMID: 34880207 PMCID: PMC8654926 DOI: 10.1038/s41420-021-00773-w] [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] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 11/15/2021] [Accepted: 11/24/2021] [Indexed: 12/31/2022] Open
Abstract
MicroRNA-132/212 has been supposed as a critical gene related to the blood–brain barrier (BBB) protection after stroke, but its regulation pathway including the upstream regulator and downstream targets is still unclear. Herein, we demonstrated the cAMP response element-binding protein (CREB)-regulated transcription coactivator-1 (CRTC1) to be the upstream regulator of miRNA-132/212 using CRTC1 knockout and wild-type mice. CRTC1 deletion led to the reduction of miRNA-132/212 expression in mice brain after ischemic stroke, significantly increased infarct volume, and aggravated BBB permeability with worsening neurological deficits. Furthermore, we identified that miRNA-132 repressed Claudin-1, tight junction-associated protein-1 (TJAP-1), and RNA-binding Fox-1 (RBFox-1) by directly binding to their respective 3′-untranslated regions, which alleviated the ischemic damage by enhancing neuronal survival and BBB integrity. Moreover, the co-culture of endothelial cells with CRTC1-deficient neurons aggravated the cell vulnerability to hypoxia, also supporting the idea that miRNA-132/212 cluster is regulated by CRTC1 and acts as a crucial role in the mitigation of ischemic damage. This work is a step forward for understanding the role of miRNA-132/212 in neurovascular interaction and may be helpful for potential gene therapy of ischemic stroke.
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Affiliation(s)
- Haomin Yan
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Hideaki Kanki
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Shigenobu Matsumura
- Laboratory of Nutrition Chemistry, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Tomohiro Kawano
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Kumiko Nishiyama
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Shintaro Sugiyama
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Hideki Mochizuki
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan
| | - Tsutomu Sasaki
- Department of Neurology, Graduate School of Medicine, Osaka University, Yamadaoka 2-2, Suita, Osaka, 565-0871, Japan.
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14
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Hirata Y, Tsunekawa Y, Takahashi M, Oh-Hashi K, Kawaguchi K, Hayazaki M, Watanabe M, Koga KI, Hattori Y, Takemori H, Furuta K. Identification of novel neuroprotective N,N-dimethylaniline derivatives that prevent oxytosis/ferroptosis and localize to late endosomes and lysosomes. Free Radic Biol Med 2021; 174:225-235. [PMID: 34407426 DOI: 10.1016/j.freeradbiomed.2021.08.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 06/01/2021] [Revised: 08/06/2021] [Accepted: 08/12/2021] [Indexed: 11/28/2022]
Abstract
Oxidative stress has been implicated in the aging process and the progression of many neurodegenerative disorders. We previously reported that a novel oxindole compound, GIF-0726-r, effectively prevents endogenous oxidative stress, such as oxytosis/ferroptosis, an iron-dependent form of non-apoptotic cell death, in mouse hippocampal cells. In this study, using two hundred compounds that were developed based on the structure-activity relationship of GIF-0726-r, we screened for the most potent compounds that prevent glutamate- and erastin-induced oxytosis and ferroptosis. Using submicromolar concentrations, we identified nine neuroprotective compounds that have N,N-dimethylaniline as a common structure but no longer contain an oxindole ring. The most potent derivatives, GIF-2114 and GIF-2197-r (the racemate of GIF-2115 and GIF-2196), did not affect glutathione levels, had no antioxidant activity in vitro, or ability to activate the Nrf2 pathway, but prevented oxytosis/ferroptosis via reducing reactive oxygen production and decreasing ferrous ions. Furthermore, we developed fluorescent probes of GIF-2114 and GIF-2197-r to image their distribution in live cells and found that they preferentially accumulated in late endosomes/lysosomes, which play a central role in iron metabolism. These results suggest that GIF-2114 and GIF-2197-r protect hippocampal cells from oxytosis/ferroptosis by targeting late endosomes and lysosomes, as well as decreasing ferrous ions.
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Affiliation(s)
- Yoko Hirata
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu, 501-1193, Japan.
| | - Yoshiyuki Tsunekawa
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Mayu Takahashi
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Kentaro Oh-Hashi
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Kyoka Kawaguchi
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Masumi Hayazaki
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Miyu Watanabe
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Ken-Ichi Koga
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Yurika Hattori
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan
| | - Hiroshi Takemori
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu, 501-1193, Japan.
| | - Kyoji Furuta
- Graduate School of Natural Science and Technology, Gifu University, Yanagido, Gifu, 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu, 501-1193, Japan.
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15
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Maeda M, Suzuki M, Fuchino H, Tanaka N, Kobayashi T, Isogai R, Batubara I, Iswantini D, Matsuno M, Kawahara N, Koketsu M, Hamamoto A, Takemori H. Diversity of Adenostemma lavenia, multi-potential herbs, and its kaurenoic acid composition between Japan and Taiwan. J Nat Med 2021; 76:132-143. [PMID: 34510371 DOI: 10.1007/s11418-021-01565-3] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/29/2021] [Indexed: 11/30/2022]
Abstract
Adenostemma lavenia (L.) Kuntze (Asteraceae) is widely distributed in tropical regions of East Asia, and both A. lavenia and A. madurense (DC) are distributed in Japan. In China and Taiwan, A. lavenia is used as a folk medicine for treating lung congestion, pneumonia, and hepatitis. However, neither phylogenic nor biochemical analysis of this plants has been performed to date. We have reported that the aqueous extract of Japanese A. lavenia contained high levels of ent-11α-hydroxy-15-oxo-kaur-16-en-19-oic acid (11αOH-KA; a kaurenoic acid), which is a potent anti-melanogenic compound. Comparison of chloroplast DNA sequences suggested that A. lavenia is originated from A. madurense. Analyses of kaurenoic acids revealed that Japanese A. lavenia and A. madurense contained high levels of 11αOH-KA and moderate levels of 11α,15OH-KA, while Taiwanese A. lavenia mainly contained 9,11αOH-KA. The diverse biological activities (downregulation of Tyr, tyrosinase, gene expression [anti-melanogenic] and iNOS, inducible nitric oxide synthase, gene expression [anti-inflammatory], and upregulation of HO-1, heme-oxygenase, gene expression [anti-oxidative]) were associated with 11αOH-KA and 9,11αOH-KA but not with 11α,15OH-KA. Additionally, 11αOH-KA and 9,11αOH-KA decreased Keap1 (Kelch-like ECH-associated protein 1) protein levels, which was accompanied by upregulation of protein level and transcriptional activity of Nrf2 (NF-E2-related factor-2) followed by HO-1 gene expression. 11αOH-KA and 9,11αOH-KA differ from 11α,15OH-KA in terms of the presence of a ketone (αβ-unsaturated carbonyl group, a thiol modulator) at the 15th position; therefore, thiol moieties on the target proteins, including Keap1, may be important for the biological activities of 11αOH-KA and 9,11αOH-KA and A. lavenia extract.
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Affiliation(s)
- Miwa Maeda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Mayu Suzuki
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Hiroyuki Fuchino
- Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 305-0843, Japan
| | - Norika Tanaka
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Takahiro Kobayashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Ryosuke Isogai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Irmanida Batubara
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, IPB Dramaga Campus, Bogor, West Java, 16680, Indonesia.,Tropical Biopharmaca Research Center, IPB University, Taman Kencana Campus, Bogor, West Java, 16128, Indonesia
| | - Dyah Iswantini
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, IPB Dramaga Campus, Bogor, West Java, 16680, Indonesia.,Tropical Biopharmaca Research Center, IPB University, Taman Kencana Campus, Bogor, West Java, 16128, Indonesia
| | - Michiyo Matsuno
- The Kochi Prefectural Makino Botanical Garden, 4200-6 Godaisan, Kochi, 781-8125, Japan
| | - Nobuo Kawahara
- Research Center for Medicinal Plant Resources, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2 Hachimandai, Tsukuba, Ibaraki, 305-0843, Japan.,The Kochi Prefectural Makino Botanical Garden, 4200-6 Godaisan, Kochi, 781-8125, Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido 1-1, Gifu, 501-1193, Japan.
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16
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Hayazaki M, Hatano O, Shimabayashi S, Akiyama T, Takemori H, Hamamoto A. Zebrafish as a new model for rhododendrol-induced leukoderma. Pigment Cell Melanoma Res 2021; 34:1029-1038. [PMID: 34310852 DOI: 10.1111/pcmr.13005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 06/29/2021] [Accepted: 07/16/2021] [Indexed: 01/12/2023]
Abstract
Idiopathic leukoderma is a skin disorder characterized by patchy loss of skin pigmentation due to melanocyte dysfunction or deficiency. Rhododendrol (RD) was approved as a cosmetic ingredient in Japan in 2008. However, it was shown to induce leukoderma in approximately 20,000 customers. The prediction of cytotoxicity, especially to melanocytes in vivo, is required to avoid such adverse effects. Since the use of higher vertebrates is prohibited for medicinal and toxicological assays, we used zebrafish, whose melanocytes were regulated by mechanisms similar to mammals. Zebrafish larvae were treated with RD in breeding water for 3 days, which caused body lightening accompanied by a decrease in the number of melanophores. Interestingly, black particles were found at the bottom of culture dishes, suggesting that the melanophores peeled off from the body. In addition, RT-PCR analysis suggested that the mRNA levels of melanophore-specific genes were significantly low. An increase in the production of reactive oxygen species was found in larvae treated with RD. The treatments of the fish with other phenol compounds, which have been reported to cause leukoderma, also induced depigmentation and melanophore loss. These results suggest that zebrafish larvae could be used for the evaluation of leukoderma caused by chemicals, including RD.
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Affiliation(s)
- Masumi Hayazaki
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Osamu Hatano
- Department of Basic Medicine, Nara Medical University School of Medicine, Kashihara, Japan
| | - Saki Shimabayashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Takumi Akiyama
- Division of Environmental Chemistry, National Institute of Health Sciences, Kawasaki, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
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Maeda M, Suzuki M, Takashima S, Sasaki T, Oh-Hashi K, Takemori H. The new live imagers MitoMM1/2 for mitochondrial visualization. Biochem Biophys Res Commun 2021; 562:50-54. [PMID: 34034093 DOI: 10.1016/j.bbrc.2021.05.040] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 05/12/2021] [Indexed: 12/26/2022]
Abstract
Mitochondria are eukaryotic organelles that consist of outer and inner bilayer membranes with a positive potential (H+) in the intermembrane space. This organelle plays an important role in ATP production and apoptosis. To observe the mitochondria in living cells, several fluorescent dyes (such as MitoTracker® [a standard mitochondrial imager] or rhodamine 123) have been developed. However, these reagents are unstable and exhibit a wide range of emission spectra, thereby hampering double staining results. Using recombinant DNA techniques, green or red fluorescent protein (GFP or RFP)-tagged proteins are now available for multi-color labeling of mitochondria. Here, we have discussed the development of the novel mitochondrial live imagers MitoMM1/2, derivatives of ATTO565; furthermore, MitoMM1/2 are sensitive to the membrane potential, resistant to detergents, and the fluorescence of MitoMM1/2 does not overlap with green fluorescence.
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Affiliation(s)
- Miwa Maeda
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Mayu Suzuki
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Shigeo Takashima
- Division of Genomics Research, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Tsutomu Sasaki
- Department of Neurology, Graduate School of Medicine, Osaka University, Osaka, 565-0871, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
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18
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Isogawa K, Asano M, Hayazaki M, Koga K, Watanabe M, Suzuki K, Kobayashi T, Kawaguchi K, Ishizuka A, Kato S, Ito H, Hamamoto A, Koyama H, Furuta K, Takemori H. Thioxothiazolidin derivative, 4-OST, inhibits melanogenesis by enhancing the specific recruitment of tyrosinase-containing vesicles to lysosome. J Cell Biochem 2021; 122:667-678. [PMID: 33480093 DOI: 10.1002/jcb.29895] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 12/15/2022]
Abstract
Tyrosinase catalyzes the rate-limiting step in melanin synthesis. Melanin is synthesized from l-tyrosin in the melanosomes, where tyrosinase and other melanogenic factors are recruited via the vesicle transport system. Genetic and biochemical approaches have revealed a correlation between impairments in the vesicle transport system and albinism. However, the specificity of the individual transport systems for the corresponding melanogenic factors has not been well elucidated yet. Here, we report that the thioxothiazolidin derivative, 4-OST (4-[(5E)-5-[(4-fluorophenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]-4-azatricyclo [5.2.1.02 ,6]dec-8-ene-3,5-dione: CAS RN. 477766-87-3) strongly inhibited melanogenesis in mouse melanoma B16F10 cells. 4-OST reduces tyrosinase protein levels without affecting its messenger RNA levels or enzymatic activity. Although a reduction in tyrosinase protein level was observed in the presence of a protein synthesis inhibitor, the reduction may be coupled with protein synthesis. Similarly, GIF-2202 (a derivative of 4-OST) lowers tyrosinase protein levels without affecting the levels of another melanogenic enzyme, tyrosinase-related protein 1 (TYRP1) level. The reduction in tyrosinase protein level is associated with an increase in the levels of the lysosomal proteinase cathepsin S. Chloroquine, a lysosome inhibitor, restored the tyrosinase protein level downregulated by GIF-2202, although no effects of other inhibitors (against proteasome, autophagy, or exocytosis) were observed. In addition, GIF-2202 segregated the immunofluorescence signals of tyrosinase from those of TYRP1. Chloroquine treatment resulted in co-localization of tyrosinase and cathepsin S signals near the perinuclear region, suggesting that 4-OST and GIF-2202 may alter the destination of the tyrosinase vesicle from the melanosome to the lysosome. 4-OST and GIF-2202 can be new tools for studying the tyrosinase-specific vesicle transport system.
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Affiliation(s)
- Kenta Isogawa
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Masataka Asano
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Masumi Hayazaki
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Kenichi Koga
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Miyu Watanabe
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Keiichi Suzuki
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Takahiro Kobayashi
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Kyoka Kawaguchi
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Akane Ishizuka
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Shinya Kato
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Hironari Ito
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Akie Hamamoto
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Hiroko Koyama
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Kyoji Furuta
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
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19
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Armouti M, Winston N, Hatano O, Hobeika E, Hirshfeld-Cytron J, Liebermann J, Takemori H, Stocco C. Salt-inducible Kinases Are Critical Determinants of Female Fertility. Endocrinology 2020; 161:5826400. [PMID: 32343771 PMCID: PMC7286620 DOI: 10.1210/endocr/bqaa069] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/21/2020] [Indexed: 12/28/2022]
Abstract
Follicle development is the most crucial step toward female fertility and is controlled mainly by follicle-stimulating hormone (FSH). In ovarian granulosa cells (GCs), FSH activates protein kinase A by increasing 3',5'-cyclic adenosine 5'-monophosphate (cAMP). Since cAMP signaling is impinged in part by salt-inducible kinases (SIKs), we examined the role of SIKs on the regulation of FSH actions. Here, we report that SIKs are essential for normal ovarian function and female fertility. All SIK isoforms are expressed in human and rodent GCs at different levels (SIK3>SIK2>SIK1). Pharmacological inhibition of SIK activity potentiated the stimulatory effect of FSH on markers of GC differentiation in mouse, rat, and human GCs and estradiol production in rat GCs. In humans, SIK inhibition strongly enhanced FSH actions in GCs of patients with normal or abnormal ovarian function. The knockdown of SIK2, but not SIK1 or SIK3, synergized with FSH on the induction of markers of GC differentiation. SIK inhibition boosted gonadotropin-induced GC differentiation in vivo, while the genomic knockout of SIK2 led to a significant increase in the number of ovulated oocytes. Conversely, SIK3 knockout females were infertile, FSH insensitive, and had abnormal folliculogenesis. These findings reveal novel roles for SIKs in the regulation of GC differentiation and female fertility, and contribute to our understanding of the mechanisms regulated by FSH. Furthermore, these data suggest that specific pharmacological modulation of SIK2 activity could be of benefit to treat ovulatory defects in humans and to increase the propagation of endangered species and farm mammals.
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Affiliation(s)
- Marah Armouti
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois
| | - Nicola Winston
- Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine. Chicago, Illinois
| | - Osamu Hatano
- Department of Basic Medicine, Nara Medical University, Nara, Japan
| | - Elie Hobeika
- Fertility Centers of Illinois, Chicago, Illinois
| | | | | | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Carlos Stocco
- Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, Illinois
- Department of Obstetrics and Gynecology, University of Illinois at Chicago College of Medicine. Chicago, Illinois
- Correspondence: Carlos Stocco, Department of Physiology and Biophysics, University of Illinois at Chicago, Chicago, IL 60612. E-mail:
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Takemori H, Hamamoto A, Isogawa K, Ito M, Takagi M, Morino H, Miura T, Oshida K, Shibata T. Mouse model of metformin-induced diarrhea. BMJ Open Diabetes Res Care 2020; 8:8/1/e000898. [PMID: 32213489 PMCID: PMC7170402 DOI: 10.1136/bmjdrc-2019-000898] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 01/18/2020] [Accepted: 03/03/2020] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Metformin, an oral medication used for type 2 diabetes mellitus, is the most commonly prescribed drug with less economic burden of patients. Although metformin's efficacy and safety have long been recognized, approximately 5% of the patients treated with this drug develop severe diarrhea as an adverse effect and have to abandon treatment. Because there is no animal model to study metformin-induced diarrhea, it is hard to develop methods to maintain quality of life of patients prescribed with metformin. RESEARCH DESIGN AND METHODS Using mouse models, we tried to develop an evaluation system for metformin-induced diarrhea to improve diarrheal symptoms in patients with diabetes. Healthy (C57BL/6J) and diabetic obese (db/db) mice were subjected to a stepwise dose escalation of metformin (250 mg/kg/day (125 mg/kg twice daily oral dose)-1000 mg/kg/day (500 mg/kg twice daily oral dose)), and fecal moisture contents and their score were monitored. To evaluate anti-diarrheal medications, wood creosote (a traditional medicine) was tested. Several groups of enterobacteria in fresh feces were examined by using PCR. RESULTS 1000 mg/kg/day (four times maximal effective dose) of metformin significantly increased fecal moisture content. Although no symptoms of diarrhea were observed in healthy C57BL/6J mice, the same dose of metformin induced severe diarrhea in diabetic obese db/db mice. A reduction in PCR signals for the Firmicutes group was associated with metformin-induced diarrhea. Wood creosote reduced diarrhea (high water-content) without affecting metformin's efficacy or enterobacterial flora levels. CONCLUSIONS We have created the first animal model of metformin-induced diarrhea using db/db mice, which will provide better quality of life for patients suffering from diarrhea caused by metformin.
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Affiliation(s)
- Hiroshi Takemori
- United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Gifu, Japan
| | - Akie Hamamoto
- Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Kenta Isogawa
- Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
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Hamamoto A, Isogai R, Maeda M, Hayazaki M, Horiyama E, Takashima S, Koketsu M, Takemori H. The High Content of Ent-11α-hydroxy-15-oxo-kaur- 16-en-19-oic Acid in Adenostemma lavenia (L.) O. Kuntze Leaf Extract: With Preliminary in Vivo Assays. Foods 2020; 9:E73. [PMID: 31936516 PMCID: PMC7022889 DOI: 10.3390/foods9010073] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 01/04/2020] [Accepted: 01/07/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Ent-11α-hydroxy-15-oxo-kaur-16-en-19-oic acid (11αOH-KA) is a multifunctional biochemical found in some ferns, Pteris semipinnata, and its congeneric species. Although a number of therapeutic applications of 11αOH-KA have been proposed (e.g., anti-cancer, anti-inflammation, and skin whitening), the content of 11αOH-KA in these ferns is not high. Adenostemma lavenia (L.) O. Kuntze, an Asteraceae, has also been reported to contain 11αOH-KA. The decoction (hot water extract) of whole plants of A. lavenia is used as a folk remedy for inflammatory disorders, such as hepatitis and pneumonia, suggesting that 11αOH-KA may be the ingredient responsible for the medicinal properties of this plant. METHODS The anti-melanogenic activities of the water extracts of A. lavenia leaves and Pteris dispar Kunze (a cognate of P. semipinnata) leaves were compared in mouse B16F10 melanoma cells. The amount of 11αOH-KA was measured by using liquid chromatography spectrometry. C57BL/6J mice were treated with the water extract of A. lavenia leaf, and the blood concentration of 11αOH-KA was measured. The in vivo efficacy of the water extract of A. lavenia leaf was evaluated according to tis anti-melanogenic activity by monitoring hair color. RESULTS Although both the extracts (A. lavenia and P. dispar Kunze) showed high anti-melanogenic activities, only A. lavenia contained a high amount of 11αOH-KA, approximately 2.5% of the dry leaf weight. 11αOH-KA can be purified from A. lavenia leaves in two steps: water extraction followed by chloroform distribution. The treatment of mice with the water extract of A. lavenia leaf suppresses pigmentation in their hairs. CONCLUSIONS Despite the small number of mice examined, the present preliminary result of the suppressed hair pigmentation suggests that the water extract of A. lavenia leaf and the ingredient that is possibly responsible for this-11αOH-KA-are new materials for oral cosmetics. The results may also be helpful in the future development of functional foods and methods to treat patients suffering from hyperpigmentation disorders, such as melasma.
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Affiliation(s)
| | | | | | | | | | | | | | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan; (A.H.); (R.I.); (M.M.); (M.H.); (E.H.); (S.T.); (M.K.)
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22
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Hirata Y, Iwasaki T, Makimura Y, Okajima S, Oh-Hashi K, Takemori H. Inhibition of double-stranded RNA-dependent protein kinase prevents oxytosis and ferroptosis in mouse hippocampal HT22 cells. Toxicology 2019; 418:1-10. [PMID: 30817950 DOI: 10.1016/j.tox.2019.02.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 11/28/2018] [Revised: 01/26/2019] [Accepted: 02/22/2019] [Indexed: 01/20/2023]
Abstract
Double-stranded RNA-dependent protein kinase (PKR) is a component of signal transduction pathways mediating various stress signals including oxidative stress and endoplasmic reticulum (ER) stress and is suggested to be implicated in several neurodegenerative diseases. Cell death in neurodegenerative conditions has been linked to oxidative stress; however, the involvement of PKR in endogenous oxidative stress such as oxytosis and ferroptosis which is quite distinct from classical apoptosis remains unknown. We investigated here the effect of a PKR inhibitor C16 (an imidazole-oxindole derivative) on oxytosis and ferroptosis in cultured HT22 mouse hippocampal cells. C16 prevented glutamate- and erastin-induced cell death, reactive oxygen species accumulation, Ca2+ influx, phosphorylation of inositol-requiring enzyme 1 (IRE1), one of the three branches of ER stress signaling and its downstream signaling components. On the other hand, C16 did not prevent oxidative stress-induced heme oxygenase-1 expression; instead, C16 activated the extracellular signal-regulated kinase pathway. The protective effect of C16 is diminished in PKR knockout HT22 cells. Real time measurements of the oxygen consumption rate and extracellular acidification rate over a long period of time leading to cell death showed that C16 partially prevented erastin-induced mitochondrial and glycolytic dysfunction. These results suggest that PKR is an important component of oxytosis and ferroptosis and the inhibition of PKR is neuroprotective against endogenous oxidative stress-induced cell death and provide an effective strategy for neuroprotection.
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Affiliation(s)
- Yoko Hirata
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan.
| | - Takuya Iwasaki
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Yukimi Makimura
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Sayaka Okajima
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Kentaro Oh-Hashi
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan; United Graduate School of Drug Discovery and Medical Information Sciences, Gifu University, Yanagido, Gifu 501-1193, Japan.
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23
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Kita M, Nakae J, Kawano Y, Asahara H, Takemori H, Okado H, Itoh H. Zfp238 Regulates the Thermogenic Program in Cooperation with Foxo1. iScience 2019; 12:87-101. [PMID: 30677742 PMCID: PMC6352565 DOI: 10.1016/j.isci.2019.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 09/18/2018] [Revised: 11/25/2018] [Accepted: 01/03/2019] [Indexed: 12/17/2022] Open
Abstract
Obesity has become an explicit public health concern because of its relevance to metabolic syndrome. Evidence points to the significance of beige adipocytes in regulating energy expenditure. Here, using yeast two-hybrid screening, we show that Zfp238 is a Foxo1 co-repressor and that adipose-tissue-specific ablation of Zfp238 (Adipo-Zfp238KO) in mice leads to obesity, decreased energy expenditure, and insulin resistance under normal chow diet. Adipo-Zfp238KO inhibits induction of Ucp1 expression in subcutaneous adipose tissue upon cold exposure or CL316243, but not in brown adipose tissue. Furthermore, knockdown of Zfp238 in 3T3-L1 cells decreases Ucp1 expression in response to cool incubation or forskolin significantly compared with control cells. In contrast, overexpression of Zfp238 in 3T3-L1 cells significantly increases Ucp1 expression in response to forskolin. Finally, double knockdown of both Zfp238 and Foxo1 normalizes Ucp1 induction. These data suggest that Zfp238 in adipose tissue regulates the thermogenic program in cooperation with Foxo1. Zfp238 is a Foxo1 co-repressor Zfp238 deficiency in adipocyte leads to obesity and decreased energy expenditure Knockdown of Zfp238 in 3T3-L1 cells decreases Ucp1 induction Double knockdown of both Zfp238 and Foxo1 normalizes Ucp1 induction
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Affiliation(s)
- Motoko Kita
- Navigation Medicine of Kidney and Metabolism, Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Jun Nakae
- Navigation Medicine of Kidney and Metabolism, Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan; Department of Physiology, International University of Health and Welfare School of Medicine, Narita 286-8686, Japan.
| | - Yoshinaga Kawano
- Navigation Medicine of Kidney and Metabolism, Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hiroshi Asahara
- Department of Systems BioMedicine, Tokyo Medical and Dental University, Tokyo 113-8519, Japan
| | - Hiroshi Takemori
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Haruo Okado
- Department of Brain Development and Neural Regeneration, Tokyo Metropolitan Institute of Medical Science, Setagaya, Tokyo 156-0057, Japan
| | - Hiroshi Itoh
- Navigation Medicine of Kidney and Metabolism, Division of Endocrinology, Metabolism, and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
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Okajima S, Hamamoto A, Asano M, Isogawa K, Ito H, Kato S, Hirata Y, Furuta K, Takemori H. Azepine derivative T4FAT, a new copper chelator, inhibits tyrosinase. Biochem Biophys Res Commun 2019; 509:209-215. [DOI: 10.1016/j.bbrc.2018.12.105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 12/14/2018] [Indexed: 01/09/2023]
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25
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Momozane T, Kawamura T, Itoh Y, Sanosaka M, Sasaki T, Kanzaki R, Ose N, Funaki S, Shintani Y, Minami M, Okumura M, Takemori H. Carnosol suppresses interleukin-6 production in mouse lungs injured by ischemia–reperfusion operation and in RAW264.7 macrophages treated with lipopolysaccharide. Biochem Cell Biol 2018; 96:769-776. [DOI: 10.1139/bcb-2017-0339] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Carnosol is a naturally occurring herbal compound, known for its antioxidative properties. We previously found that carnosol protected mouse lungs from ischemia–reperfusion injury in ex vivo cultures. To elucidate the molecular mechanisms underpinning carnosol-mediated lung protection, we analyzed modes of interleukin-6 (IL-6) gene expression, which is associated with lung ischemia–reperfusion injury. Microarray analysis of mouse lungs suggested that IL-6 mRNA levels were elevated in the mouse lungs subjected to clamp-reperfusion, which was associated with elevated levels of other inflammatory modulators, such as activating transcription factor 3 (ATF3). Carnosol pretreatment lowered the IL-6 protein levels in mouse lung homogenates prepared after the clamp-reperfusion. On the other hand, the ATF3 gene expression was negatively correlated with that of IL-6 in RAW264.7 cells. IL-6 mRNA levels and gene promoter activities were suppressed by carnosol in RAW264.7 cells, but rescued by ATF3 knockdown. When RAW264.7 cells were subjected to hypoxia–reoxygenation, carnosol treatment lowered oxygen consumption after reoxygenation, which was coupled with a correlation with a transient production of mitochondrial reactive oxygen species and following ATF3 gene expression. These results suggest that carnosol treatment could be a new strategy for protecting lungs from ischemia–reperfusion injury by modulating the ATF3–IL-6 axis.
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Affiliation(s)
- Toru Momozane
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
- Laboratory of Cell Signaling & Metabolic Disease, National Institute of Biomedical Innovation, 7-6-8, Asagi-Saito, Ibaraki Osaka, 567-0085, Japan
| | - Tomohiro Kawamura
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
- Laboratory of Cell Signaling & Metabolic Disease, National Institute of Biomedical Innovation, 7-6-8, Asagi-Saito, Ibaraki Osaka, 567-0085, Japan
| | - Yumi Itoh
- Laboratory of Cell Signaling & Metabolic Disease, National Institute of Biomedical Innovation, 7-6-8, Asagi-Saito, Ibaraki Osaka, 567-0085, Japan
| | - Masato Sanosaka
- Laboratory of Cell Signaling & Metabolic Disease, National Institute of Biomedical Innovation, 7-6-8, Asagi-Saito, Ibaraki Osaka, 567-0085, Japan
| | - Tsutomu Sasaki
- Department of Neurology, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryu Kanzaki
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Naoko Ose
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Soichiro Funaki
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Yasushi Shintani
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Masato Minami
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Meinoshin Okumura
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signaling & Metabolic Disease, National Institute of Biomedical Innovation, 7-6-8, Asagi-Saito, Ibaraki Osaka, 567-0085, Japan
- Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1, Yanagido, Gifu, 501-1193, Japan
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Kumagai A, Sasaki T, Matsuoka K, Abe M, Tabata T, Itoh Y, Fuchino H, Wugangerile S, Suga M, Yamaguchi T, Kawahara H, Nagaoka Y, Kawabata K, Furue MK, Takemori H. Monitoring of glutamate-induced excitotoxicity by mitochondrial oxygen consumption. Synapse 2018; 73:e22067. [PMID: 30120794 DOI: 10.1002/syn.22067] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/07/2018] [Accepted: 08/14/2018] [Indexed: 12/14/2022]
Abstract
Dysfunction of mitochondrial activity is often associated with the onset and progress of neurodegenerative diseases. Membrane depolarization induced by Na+ influx increases intracellular Ca2+ levels in neurons, which upregulates mitochondrial activity. However, overlimit of Na+ influx and its prolonged retention ultimately cause excitotoxicity leading to neuronal cell death. To return the membrane potential to the normal level, Na+ /K+ -ATPase exchanges intracellular Na+ with extracellular K+ by consuming a large amount of ATP. This is a reason why mitochondria are important for maintaining neurons. In addition, astrocytes are thought to be important for supporting neighboring neurons by acting as energy providers and eliminators of excessive neurotransmitters. In this study, we examined the meaning of changes in the mitochondrial oxygen consumption rate (OCR) in primary mouse neuronal populations. By varying the medium constituents and using channel modulators, we found that pyruvate rather than lactate supported OCR levels and conferred on neurons resistance to glutamate-mediated excitotoxicity. Under a pyruvate-restricted condition, our OCR monitoring could detect excitotoxicity induced by glutamate at only 10 μM. The OCR monitoring also revealed the contribution of the N-methyl-D-aspartate receptor and Na+ /K+ -ATPase to the toxicity, which allowed evaluating spontaneous excitation. In addition, the OCR monitoring showed that astrocytes preferentially used glutamate, not glutamine, for a substrate of the tricarboxylic acid cycle. This mechanism may be coupled with astrocyte-dependent protection of neurons from glutamate-mediated excitotoxicity. These results suggest that OCR monitoring would provide a new powerful tool to analyze the mechanisms underlying neurotoxicity and protection against it.
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Affiliation(s)
- Ayako Kumagai
- Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan.,Life Science and Biotechnology, Chemistry, Materials and Bioengineering, Kansai University, Osaka, Japan
| | - Tsutomu Sasaki
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kenta Matsuoka
- Laboratory for Biological Information Processing, Graduate School of, Science and Engineering, University of Toyama, Toyama, Japan
| | - Masayoshi Abe
- Laboratory for Biological Information Processing, Graduate School of, Science and Engineering, University of Toyama, Toyama, Japan
| | - Toshihide Tabata
- Laboratory for Biological Information Processing, Graduate School of, Science and Engineering, University of Toyama, Toyama, Japan
| | - Yumi Itoh
- Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Hiroyuki Fuchino
- Research Center for Medicinal Plant Resources, Tukuba Division, National Institutes of Biomedical Innovation, Health and Nutrition, Tsukuba, Japan
| | - Sartagul Wugangerile
- Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Mika Suga
- Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Tomoko Yamaguchi
- Stem Cell Regulation, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Hidehisa Kawahara
- Life Science and Biotechnology, Chemistry, Materials and Bioengineering, Kansai University, Osaka, Japan
| | - Yasuo Nagaoka
- Life Science and Biotechnology, Chemistry, Materials and Bioengineering, Kansai University, Osaka, Japan
| | - Kenji Kawabata
- Stem Cell Regulation, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Miho Kusuda Furue
- Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Hiroshi Takemori
- Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, Japan.,Faculty of Engineering, Depaetment of Chemistry and Biomolecular Science, Gifu University, Gifu, Japan
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Hiramatsu K, Serada S, Enomoto T, Takahashi Y, Nakagawa S, Nojima S, Morimoto A, Matsuzaki S, Yokoyama T, Takahashi T, Fujimoto M, Takemori H, Ueda Y, Yoshino K, Morii E, Kimura T, Naka T. LSR Antibody Therapy Inhibits Ovarian Epithelial Tumor Growth by Inhibiting Lipid Uptake. Cancer Res 2017; 78:516-527. [DOI: 10.1158/0008-5472.can-17-0910] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 09/29/2017] [Accepted: 11/15/2017] [Indexed: 11/16/2022]
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28
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Kuroi A, Sugimura K, Kumagai A, Kohara A, Nagaoka Y, Kawahara H, Yamahara M, Kawahara N, Takemori H, Fuchino H. The Importance of 11α-OH, 15-oxo, and 16-en Moieties of 11α-Hydroxy-15-oxo-kaur-16-en-19-oic Acid in Its Inhibitory Activity on Melanogenesis. Skin Pharmacol Physiol 2017; 30:205-215. [DOI: 10.1159/000475471] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 04/03/2017] [Indexed: 12/18/2022]
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Vankayalapati H, Yerramreddy V, Zhou J, Handler JA, Appalaneni RP, Kancherla RR, Wu RJ, Takemori H, Whitehurst A, Jazaeri AA, Coleman RL, Lu Z, Bast RC. Abstract LB-296: Discovery of ARN-3261 as a potent, selective, orally available SIK2 inhibitor for treating ovarian, endometrial, primary peritoneal, fallopian tube, and triple negative breast cancers. Cancer Res 2017. [DOI: 10.1158/1538-7445.am2017-lb-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
ARN-3261 is an orally bioavailable small molecule inhibitor of the Salt Inducible Kinase 2 (SIK2, 11 nM) and SIK3 (19 nM). Three isoforms of SIK (SIKs) proteins have been reported: SIK1 (SNF1LK), SIK2 (QIK), and SIK3 (QSK). They are the Ser/Thr centrosome kinase family members required for bipolar mitotic spindle formation. The overexpression of SIK2 kinase in 30% of ovarian cancer specimens allows a novel, clinically important new method of treating ovarian cancer by blocking SIK2 kinase activity. In addition to a role in ovarian cancer, SIK2 and SIK3 are prevalent in several other tumor types, including breast, prostate diffuse large B-cell lymphoma, and melanoma cancers. Inhibition of SIK2 has been reported to cause centrosome splitting in interphase, while SIK2 depletion blocked centrosome separation in mitosis and sensitized ovarian cancers to paclitaxel in culture and in vivo Xenograft models. Depletion of SIK2 also delayed G1/S transition and reduced AKT phosphorylation. Higher levels of expression of SIK2 have been shown to be highly correlated with poor survival in patients with high-grade serous ovarian cancers. Using the homology structure of SIK2, fragment-based lead optimization strategies, and screening and structure-activity relationship efforts, we have discovered ARN-3261, a first-in-class novel, selective inhibitor of SIK2 that could prove useful in treating ovarian, endometrial, primary peritoneal, fallopian tube, and triple negative breast cancers. ARN-3261 specifically inhibited SIK2-expressed SKOv3 cells with an IC50 of 92 nM. ARN3261 was effective against ovarian, breast cancer cell lines alone and in combination with Paclitaxel and Cisplatin. ARN-3261 also inhibited ovarian tumor growth significantly at
70% in SKOv3 human ovarian cancer Xenografts in Ncr nu/nu mice in a dose dependent manner at 20, 40, 60, and 100 mg/kg orally. Moreover, ARN-3261 has exhibited excellent in vivo pharmacokinetic, pharmacodynamics, and correlative PK/PD and ADME characteristics. Preliminary in vitro and in vivo tumor up-take studies suggest that ARN-3261 blocks centrosome separation by inhibiting SIK2, thereby enhancing the sensitivity of Paclitaxel. Encouraged by these results, we initiated the IND enabling GLP-Toxicology and safety studies to bring ARN-3261 to the clinic for First-In-Human (FIH) Phase 1 trials. The non-clinical pharmacology data along with Phase 1 POC clinical trial plans will be presented.
Citation Format: Hariprasad Vankayalapati, Venkatakrishnareddy Yerramreddy, Jinhua Zhou, Jeffrey A. Handler, Rajendra P. Appalaneni, Ramamohan R. Kancherla, Roy J. Wu, Hiroshi Takemori, Angelique Whitehurst, Amir Anthony Jazaeri, Robert L. Coleman, Zhen Lu, Robert C. Bast. Discovery of ARN-3261 as a potent, selective, orally available SIK2 inhibitor for treating ovarian, endometrial, primary peritoneal, fallopian tube, and triple negative breast cancers [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2017; 2017 Apr 1-5; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2017;77(13 Suppl):Abstract nr LB-296. doi:10.1158/1538-7445.AM2017-LB-296
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Affiliation(s)
| | | | - Jinhua Zhou
- 2The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | | | | | - Roy J. Wu
- 1Arrien Pharmaceuticals, Salt Lake City, UT
| | | | | | | | | | - Zhen Lu
- 2The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Robert C. Bast
- 2The University of Texas MD Anderson Cancer Center, Houston, TX
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Zhang Y, Takemori H, Wang C, Fu J, Xu M, Xiong L, Li N, Wen X. Role of salt inducible kinase 1 in high glucose-induced lipid accumulation in HepG2 cells and metformin intervention. Life Sci 2017; 173:107-115. [DOI: 10.1016/j.lfs.2017.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 01/21/2017] [Accepted: 02/02/2017] [Indexed: 01/14/2023]
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Abstract
PURPOSE To examine the enhancing effects of syringetin on the radiosensitivity of normal and cancer cells, and the related mechanism. MATERIALS AND METHODS We used normal human lung and mouse fibroblasts as well as human lung and mouse cancer cells derived from the above normal fibroblasts. Cell radiosensitivity was measured using a colony formation assay. Apoptosis was analyzed with DAPI staining and Western blots. DNA lesions were analyzed with γH2AX immunofluorescent staining. RESULTS The colony formation assay showed that syringetin enhanced radiosensitivity more effectively in cancer cells (H1299 and C3H/MCA clone 15) compared with normal cells (HFL-III and C3H/10T1/2). The radiosensitizing effect of syringetin was observed in mutated p53 and wild-type p53-transfected H1299 cells regardless of p53 status. Apoptosis was more frequently observed in X-ray-irradiated H1299 cells combined with syringetin compared with X-ray-only-treated cells. Enhanced apoptosis by syringetin was not observed in HFL-III cells. Western blot analysis showed that X-ray-induced Caspase-3 activation was enhanced by syringetin in H1299 cells. The number of X-ray-induced DNA double-strand breaks (DSB) measured by quantitative analysis of γH2AX foci was the same for H1299 cells treated with X-rays with or without syringetin. CONCLUSIONS This study supports the hypothesis that syringetin enhances radiosensitivity more effectively in cancer cells than in normal cells through enhancement of the Caspase-3-mediated apoptosis pathway. Syringetin could be useful in the development of novel efficacious radiosensitizers.
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Affiliation(s)
- Shin-Ichi Bando
- a Department of Biology , Center for Humanities and Sciences, Ibaraki Prefectural University of Health Sciences , Ibaraki , Japan
| | - Osamu Hatano
- b Department of Community Health and Epidemiology , Nara Medical University School of Medicine , Kashihara , Nara , Japan
| | - Hiroshi Takemori
- c Laboratory of Cell Signaling and Metabolic Disease , National Institutes of Biomedical Innovation , Ibaragi , Osaka , Japan
| | - Nobuo Kubota
- d Department of Radiological Sciences , Ibaraki Prefectural University of Health Sciences , Ibaraki , Japan
| | - Ken Ohnishi
- a Department of Biology , Center for Humanities and Sciences, Ibaraki Prefectural University of Health Sciences , Ibaraki , Japan
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32
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Zhou J, Alfraidi A, Zhang S, Santiago-O'Farrill JM, Yerramreddy Reddy VK, Alsaadi A, Ahmed AA, Yang H, Liu J, Mao W, Wang Y, Takemori H, Vankayalapati H, Lu Z, Bast RC. A Novel Compound ARN-3236 Inhibits Salt-Inducible Kinase 2 and Sensitizes Ovarian Cancer Cell Lines and Xenografts to Paclitaxel. Clin Cancer Res 2016; 23:1945-1954. [PMID: 27678456 DOI: 10.1158/1078-0432.ccr-16-1562] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 09/10/2016] [Accepted: 09/14/2016] [Indexed: 12/19/2022]
Abstract
Purpose: Salt-inducible kinase 2 (SIK2) is a centrosome kinase required for mitotic spindle formation and a potential target for ovarian cancer therapy. Here, we examine the effects of a novel small-molecule SIK2 inhibitor, ARN-3236, on sensitivity to paclitaxel in ovarian cancer.Experimental Design: SIK2 expression was determined in ovarian cancer tissue samples and cell lines. ARN-3236 was tested for its efficiency to inhibit growth and enhance paclitaxel sensitivity in cultures and xenografts of ovarian cancer cell lines. SIK2 siRNA and ARN-3236 were compared for their ability to produce nuclear-centrosome dissociation, inhibit centrosome splitting, block mitotic progression, induce tetraploidy, trigger apoptotic cell death, and reduce AKT/survivin signaling.Results: SIK2 is overexpressed in approximately 30% of high-grade serous ovarian cancers. ARN-3236 inhibited the growth of 10 ovarian cancer cell lines at an IC50 of 0.8 to 2.6 μmol/L, where the IC50 of ARN-3236 was inversely correlated with endogenous SIK2 expression (Pearson r = -0.642, P = 0.03). ARN-3236 enhanced sensitivity to paclitaxel in 8 of 10 cell lines, as well as in SKOv3ip (P = 0.028) and OVCAR8 xenografts. In at least three cell lines, a synergistic interaction was observed. ARN-3236 uncoupled the centrosome from the nucleus in interphase, blocked centrosome separation in mitosis, caused prometaphase arrest, and induced apoptotic cell death and tetraploidy. ARN-3236 also inhibited AKT phosphorylation and attenuated survivin expression.Conclusions: ARN-3236 is the first orally available inhibitor of SIK2 to be evaluated against ovarian cancer in preclinical models and shows promise in inhibiting ovarian cancer growth and enhancing paclitaxel chemosensitivity. Clin Cancer Res; 23(8); 1945-54. ©2016 AACR.
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Affiliation(s)
- Jinhua Zhou
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas.,Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Albandri Alfraidi
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Shu Zhang
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | | | - Abdulkhaliq Alsaadi
- The Nuffield Department of Obstetrics and Gynecology, University of Oxford, Oxford, United Kingdom
| | - Ahmed A Ahmed
- The Nuffield Department of Obstetrics and Gynecology, University of Oxford, Oxford, United Kingdom
| | - Hailing Yang
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jinsong Liu
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Weiqun Mao
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Yan Wang
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hiroshi Takemori
- National Institutes of Biomedical Innovation, Health and Nutrition (NIBIOHN), Ibaraki, Osaka, Japan
| | | | - Zhen Lu
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Robert C Bast
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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33
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Itoh Y, Nagaoka Y, Katakura Y, Kawahara H, Takemori H. Simple chronic colitis model using hypopigmented mice with aHermansky-Pudlak syndrome 5gene mutation. Pigment Cell Melanoma Res 2016; 29:578-82. [DOI: 10.1111/pcmr.12504] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Accepted: 06/16/2016] [Indexed: 01/11/2023]
Affiliation(s)
- Yumi Itoh
- Cell Signaling and Metabolic Disease; National Institute of Biomedical Innovation; Ibaraki Osaka Japan
| | - Yasuo Nagaoka
- Department of Life Science and Biotechnology; Kansai University; Suita Osaka Japan
| | - Yoshio Katakura
- Department of Life Science and Biotechnology; Kansai University; Suita Osaka Japan
| | - Hidehisa Kawahara
- Department of Life Science and Biotechnology; Kansai University; Suita Osaka Japan
| | - Hiroshi Takemori
- Cell Signaling and Metabolic Disease; National Institute of Biomedical Innovation; Ibaraki Osaka Japan
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34
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Yahara Y, Takemori H, Okada M, Kosai A, Yamashita A, Kobayashi T, Fujita K, Itoh Y, Nakamura M, Fuchino H, Kawahara N, Fukui N, Watanabe A, Kimura T, Tsumaki N. Corrigendum: Pterosin B prevents chondrocyte hypertrophy and osteoarthritis in mice by inhibiting Sik3. Nat Commun 2016; 7:12117. [PMID: 27346544 PMCID: PMC4931230 DOI: 10.1038/ncomms12117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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35
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Yahara Y, Takemori H, Okada M, Kosai A, Yamashita A, Kobayashi T, Fujita K, Itoh Y, Nakamura M, Fuchino H, Kawahara N, Fukui N, Watanabe A, Kimura T, Tsumaki N. Pterosin B prevents chondrocyte hypertrophy and osteoarthritis in mice by inhibiting Sik3. Nat Commun 2016; 7:10959. [PMID: 27009967 PMCID: PMC4820810 DOI: 10.1038/ncomms10959] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 02/05/2016] [Indexed: 01/09/2023] Open
Abstract
Osteoarthritis is a common debilitating joint disorder. Risk factors for osteoarthritis include age, which is associated with thinning of articular cartilage. Here we generate chondrocyte-specific salt-inducible kinase 3 (Sik3) conditional knockout mice that are resistant to osteoarthritis with thickened articular cartilage owing to a larger chondrocyte population. We also identify an edible Pteridium aquilinum compound, pterosin B, as a Sik3 pathway inhibitor. We show that either Sik3 deletion or intraarticular injection of mice with pterosin B inhibits chondrocyte hypertrophy and protects cartilage from osteoarthritis. Collectively, our results suggest Sik3 regulates the homeostasis of articular cartilage and is a target for the treatment of osteoarthritis, with pterosin B as a candidate therapeutic.
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Affiliation(s)
- Yasuhito Yahara
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.,Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630, Sugitani, Toyama 930-0194, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolic Disease, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8, Asagi, Saito, Ibaraki, Osaka 567-0085, Japan
| | - Minoru Okada
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Azuma Kosai
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Akihiro Yamashita
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tomohito Kobayashi
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kaori Fujita
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yumi Itoh
- Laboratory of Cell Signaling and Metabolic Disease, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8, Asagi, Saito, Ibaraki, Osaka 567-0085, Japan
| | - Masahiro Nakamura
- Genome/Epigenome Analysis Core Facility, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiroyuki Fuchino
- Research Center for Medicinal Plant Resources, Tsukuba Division, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2, Hachimandai, Tsukuba, Ibaraki 305-0843, Japan
| | - Nobuo Kawahara
- Research Center for Medicinal Plant Resources, Tsukuba Division, National Institutes of Biomedical Innovation, Health and Nutrition, 1-2, Hachimandai, Tsukuba, Ibaraki 305-0843, Japan
| | - Naoshi Fukui
- Graduate School of Arts and Sciences, Department of Life Sciences, The University of Tokyo, Komaba 3-8-1, Meguro-ku, Tokyo 153-8902, Japan
| | - Akira Watanabe
- Genome/Epigenome Analysis Core Facility, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Tomoatsu Kimura
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630, Sugitani, Toyama 930-0194, Japan
| | - Noriyuki Tsumaki
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
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Kumagai A, Suga M, Yanagihara K, Itoh Y, Takemori H, Furue MK. A Simple Method for Labeling Human Embryonic Stem Cells Destined to Lose Undifferentiated Potency. Stem Cells Transl Med 2016; 5:275-81. [PMID: 26819254 DOI: 10.5966/sctm.2015-0145] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 10/23/2015] [Indexed: 12/19/2022] Open
Abstract
Mitochondrial oxidative phosphorylation is a major source of cellular ATP. Its usage as an energy source varies, not only according to the extracellular environment, but also during development and differentiation, as indicated by the reported changes in the flux ratio of glycolysis to oxidative phosphorylation during embryonic stem (ES) cell differentiation. The fluorescent probe JC-1 allows visualization of changes in the mitochondrial membrane potential produced by oxidative phosphorylation. Strong JC-1 signals were localized in the differentiated cells located at the edge of H9 ES colonies that expressed vimentin, an early differentiation maker. The JC-1 signals were further intensified when individual adjacent colonies were in contact with each other. Time-lapse analyses revealed that JC-1-labeled H9 cells under an overconfluent condition were highly differentiated after subculture, suggesting that monitoring oxidative phosphorylation in live cells might facilitate the prediction of induced pluripotent stem cells, as well as ES cells, that are destined to lose their undifferentiated potency.
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Affiliation(s)
- Ayako Kumagai
- Laboratory of Cell Signaling and Metabolic Disease, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Mika Suga
- Laboratory of Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Kana Yanagihara
- Laboratory of Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Yumi Itoh
- Laboratory of Cell Signaling and Metabolic Disease, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolic Disease, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Miho K Furue
- Laboratory of Stem Cell Cultures, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
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Yamahara M, Sugimura K, Kumagai A, Fuchino H, Kuroi A, Kagawa M, Itoh Y, Kawahara H, Nagaoka Y, Iida O, Kawahara N, Takemori H, Watanabe H. Callicarpa longissima extract, carnosol-rich, potently inhibits melanogenesis in B16F10 melanoma cells. J Nat Med 2015; 70:28-35. [DOI: 10.1007/s11418-015-0933-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 08/02/2015] [Indexed: 12/14/2022]
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38
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Kawamura T, Momozane T, Sanosaka M, Sugimura K, Iida O, Fuchino H, Funaki S, Shintani Y, Inoue M, Minami M, Kawahara N, Takemori H, Okumura M. Carnosol Is a Potent Lung Protective Agent: Experimental Study on Mice. Transplant Proc 2015; 47:1657-61. [DOI: 10.1016/j.transproceed.2015.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Revised: 05/11/2015] [Accepted: 05/14/2015] [Indexed: 12/15/2022]
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39
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Lee J, Tong T, Takemori H, Jefcoate C. Stimulation of StAR expression by cAMP is controlled by inhibition of highly inducible SIK1 via CRTC2, a co-activator of CREB. Mol Cell Endocrinol 2015; 408:80-9. [PMID: 25662274 PMCID: PMC4417451 DOI: 10.1016/j.mce.2015.01.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/15/2015] [Accepted: 01/15/2015] [Indexed: 12/21/2022]
Abstract
In mouse steroidogenic cells the activation of cholesterol metabolism is mediated by steroidogenic acute regulatory protein (StAR). Here, we visualized a coordinated regulation of StAR transcription, splicing and post-transcriptional processing, which are synchronized by salt inducible kinase (SIK1) and CREB-regulated transcription coactivator (CRTC2). To detect primary RNA (pRNA), spliced primary RNA (Sp-RNA) and mRNA in single cells, we generated probe sets by using fluorescence in situ hybridization (FISH). These methods allowed us to address the nature of StAR gene expression and to visualize protein-nucleic acid interactions through direct detection. We show that SIK1 represses StAR expression in Y1 adrenal and MA10 testis cells through inhibition of processing mediated by CRTC2. Digital image analysis matches qPCR analyses of the total cell culture. Evidence is presented for spatially separate accumulation of StAR pRNA and Sp-RNA at the gene loci in the nucleus. These findings establish that cAMP, SIK and CRTC mediate StAR expression through activation of individual StAR gene loci.
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Affiliation(s)
- Jinwoo Lee
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, USA; Endocrinology and Reproductive Physiology Program, University of Wisconsin, Madison, WI, USA
| | - Tiegang Tong
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, USA
| | | | - Colin Jefcoate
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, USA; Endocrinology and Reproductive Physiology Program, University of Wisconsin, Madison, WI, USA; University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
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Itoh Y, Sanosaka M, Fuchino H, Yahara Y, Kumagai A, Takemoto D, Kagawa M, Doi J, Ohta M, Tsumaki N, Kawahara N, Takemori H. Salt-inducible Kinase 3 Signaling Is Important for the Gluconeogenic Programs in Mouse Hepatocytes. J Biol Chem 2015; 290:17879-17893. [PMID: 26048985 DOI: 10.1074/jbc.m115.640821] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Indexed: 01/24/2023] Open
Abstract
Salt-inducible kinases (SIKs), members of the 5'-AMP-activated protein kinase (AMPK) family, are proposed to be important suppressors of gluconeogenic programs in the liver via the phosphorylation-dependent inactivation of the CREB-specific coactivator CRTC2. Although a dramatic phenotype for glucose metabolism has been found in SIK3-KO mice, additional complex phenotypes, dysregulation of bile acids, cholesterol, and fat homeostasis can render it difficult to discuss the hepatic functions of SIK3. The aim of this study was to examine the cell autonomous actions of SIK3 in hepatocytes. To eliminate systemic effects, we prepared primary hepatocytes and screened the small compounds suppressing SIK3 signaling cascades. SIK3-KO primary hepatocytes produced glucose more quickly after treatment with the cAMP agonist forskolin than the WT hepatocytes, which was accompanied by enhanced gluconeogenic gene expression and CRTC2 dephosphorylation. Reporter-based screening identified pterosin B as a SIK3 signaling-specific inhibitor. Pterosin B suppressed SIK3 downstream cascades by up-regulating the phosphorylation levels in the SIK3 C-terminal regulatory domain. When pterosin B promoted glucose production by up-regulating gluconeogenic gene expression in mouse hepatoma AML-12 cells, it decreased the glycogen content and stimulated an association between the glycogen phosphorylase kinase gamma subunit (PHKG2) and SIK3. PHKG2 phosphorylated the peptides with sequences of the C-terminal domain of SIK3. Here we found that the levels of active AMPK were higher both in the SIK3-KO hepatocytes and in pterosin B-treated AML-12 cells than in their controls. These results suggest that SIK3, rather than SIK1, SIK2, or AMPKs, acts as the predominant suppressor in gluconeogenic gene expression in the hepatocytes.
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Affiliation(s)
- Yumi Itoh
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan
| | - Masato Sanosaka
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan
| | - Hiroyuki Fuchino
- Research Center for Medicinal Plant Resources, Tsukuba Division, Ibaraki, 305-0843, Japan
| | - Yasuhito Yahara
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto 606-8507, Japan
| | - Ayako Kumagai
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan
| | - Daisaku Takemoto
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan; Department of Life Science and Biotechnology, Kansai University, Osaka 564-8680, Japan
| | - Mai Kagawa
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan
| | - Junko Doi
- Department of Food and Nutrition, Senri Kinran University, Osaka, 565-0873 Japan
| | - Miho Ohta
- Department of Nutrition and Health, Faculty of Human Development, Soai University, Osaka, 559-0033, Japan
| | - Noriyuki Tsumaki
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto 606-8507, Japan
| | - Nobuo Kawahara
- Research Center for Medicinal Plant Resources, Tsukuba Division, Ibaraki, 305-0843, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Osaka, 567-0085, Japan.
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Sanosaka M, Fujimoto M, Ohkawara T, Nagatake T, Itoh Y, Kagawa M, Kumagai A, Fuchino H, Kunisawa J, Naka T, Takemori H. Salt-inducible kinase 3 deficiency exacerbates lipopolysaccharide-induced endotoxin shock accompanied by increased levels of pro-inflammatory molecules in mice. Immunology 2015; 145:268-78. [PMID: 25619259 PMCID: PMC4427391 DOI: 10.1111/imm.12445] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 07/25/2014] [Revised: 01/14/2015] [Accepted: 01/20/2015] [Indexed: 12/16/2022] Open
Abstract
Macrophages play important roles in the innate immune system during infection and systemic inflammation. When bacterial lipopolysaccharide (LPS) binds to Toll-like receptor 4 on macrophages, several signalling cascades co-operatively up-regulate gene expression of inflammatory molecules. The present study aimed to examine whether salt-inducible kinase [SIK, a member of the AMP-activated protein kinase (AMPK) family] could contribute to the regulation of immune signal not only in cultured macrophages, but also in vivo. LPS up-regulated SIK3 expression in murine RAW264.7 macrophages and exogenously over-expressed SIK3 negatively regulated the expression of inflammatory molecules [interleukin-6 (IL-6), nitric oxide (NO) and IL-12p40] in RAW264.7 macrophages. Conversely, these inflammatory molecule levels were up-regulated in SIK3-deficient thioglycollate-elicited peritoneal macrophages (TEPM), despite no impairment of the classical signalling cascades. Forced expression of SIK3 in SIK3-deficient TEPM suppressed the levels of the above-mentioned inflammatory molecules. LPS injection (10 mg/kg) led to the death of all SIK3-knockout (KO) mice within 48 hr after treatment, whereas only one mouse died in the SIK1-KO (n = 8), SIK2-KO (n = 9) and wild-type (n = 8 or 9) groups. In addition, SIK3-KO bone marrow transplantation increased LPS sensitivity of the recipient wild-type mice, which was accompanied by an increased level of circulating IL-6. These results suggest that SIK3 is a unique negative regulator that suppresses inflammatory molecule gene expression in LPS-stimulated macrophages.
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Affiliation(s)
- Masato Sanosaka
- Laboratory of Cell Signalling and Metabolic Disease, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Minoru Fujimoto
- Laboratory of Immune Signalling, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Tomoharu Ohkawara
- Laboratory of Immune Signalling, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Takahiro Nagatake
- Laboratory of Vaccine Materials, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Yumi Itoh
- Laboratory of Cell Signalling and Metabolic Disease, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Mai Kagawa
- Laboratory of Cell Signalling and Metabolic Disease, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Ayako Kumagai
- Laboratory of Cell Signalling and Metabolic Disease, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Hiroyuki Fuchino
- Research Centre for Medicinal Plant Resources, National Institute of Biomedical InnovationTsukuba, Ibaraki, Japan
| | - Jun Kunisawa
- Laboratory of Vaccine Materials, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Tetsuji Naka
- Laboratory of Immune Signalling, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signalling and Metabolic Disease, National Institute of Biomedical InnovationIbaraki, Osaka, Japan
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Chinen I, Nakahama T, Kimura A, Nguyen NT, Takemori H, Kumagai A, Kayama H, Takeda K, Lee S, Hanieh H, Ripley B, Millrine D, Dubey PK, Nyati KK, Fujii-Kuriyama Y, Chowdhury K, Kishimoto T. The aryl hydrocarbon receptor/microRNA-212/132 axis in T cells regulates IL-10 production to maintain intestinal homeostasis. Int Immunol 2015; 27:405-15. [PMID: 25862525 DOI: 10.1093/intimm/dxv015] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 03/26/2015] [Indexed: 12/12/2022] Open
Abstract
Aryl hydrocarbon receptor (Ahr), a transcription factor, plays a critical role in autoimmune inflammation of the intestine. In addition, microRNAs (miRNAs), small non-coding oligonucleotides, mediate pathogenesis of inflammatory bowel diseases (IBD). However, the precise mechanism and interactions of these molecules in IBD pathogenesis have not yet been investigated. We analyzed the role of Ahr and Ahr-regulated miRNAs in colonic inflammation. Our results show that deficiency of Ahr in intestinal epithelial cells in mice exacerbated inflammation in dextran sodium sulfate-induced colitis. Deletion of Ahr in T cells attenuated colitis, which was manifested by suppressed Th17 cell infiltration into the lamina propria. Candidate miRNA analysis showed that induction of colitis elevated expression of the miR-212/132 cluster in the colon of wild-type mice, whereas in Ahr (-/-) mice, expression was clearly lower. Furthermore, miR-212/132(-/-) mice were highly resistant to colitis and had reduced levels of Th17 cells and elevated levels of IL-10-producing CD4(+) cells. In vitro analyses revealed that induction of type 1 regulatory T (Tr1) cells was significantly elevated in miR-212/132(-/-) T cells with increased c-Maf expression. Our findings emphasize the vital role of Ahr in intestinal homeostasis and suggest that inhibition of miR-212/132 represents a viable therapeutic strategy for treating colitis.
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Affiliation(s)
- Ichino Chinen
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Taisuke Nakahama
- Department of RNA Biology and Neuroscience, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Akihiro Kimura
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Nam T Nguyen
- National Key Laboratory of Gene Technology, Vietnam Academy of Science and Technology (VAST), Institute of Biotechnology, 18 Hoang Quoc Viet Road, Cau Giay, Ha Noi, Vietnam
| | - Hiroshi Takemori
- Laboratory for Immune Signal, National Institute of Biomedical Innovation (NIBIO), 7-6-8 Asagi, Saito, Ibaraki-City, Osaka 567-0085, Japan
| | - Ayako Kumagai
- Laboratory for Immune Signal, National Institute of Biomedical Innovation (NIBIO), 7-6-8 Asagi, Saito, Ibaraki-City, Osaka 567-0085, Japan
| | - Hisako Kayama
- Laboratory of Immune Regulation, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Kiyoshi Takeda
- Laboratory of Immune Regulation, Graduate School of Medicine, Osaka University, 2-2 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Soyoung Lee
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Hamza Hanieh
- Biological Sciences Department, King Faisal University, PO Box 380, Ahsaa 31982, Saudi Arabia
| | - Barry Ripley
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - David Millrine
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Praveen K Dubey
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Kishan K Nyati
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
| | - Yoshiaki Fujii-Kuriyama
- Medical Research Institute, Medical Genomics, Tokyo Medical Dental University, Tokyo 101-0062, Japan
| | - Kamal Chowdhury
- Department of Molecular Cell Biology, Max Planck Institute of Biophysical Chemistry, 37077 Goettingen, Germany
| | - Tadamitsu Kishimoto
- Laboratory of Immune Regulation, World Premier International Immunology Frontier Research Center, Osaka University, 3-1 Yamadaoka, Suita City, Osaka 565-0871, Japan
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Alfredi A, Zhang S, Mao W, Wang Y, Takemori H, Lu Z, Bast RC, Vankayalapati H. Abstract 749: Highly potent and orally available SIK2 inhibitors block growth of human ovarian cancer cells in culture and xenografts. Cancer Res 2014. [DOI: 10.1158/1538-7445.am2014-749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Salt Inducible Kinase 2 (SIK2) is a Ser/Thr kinase required for centrosome splitting and bipolar mitotic spindle formation. SIK2 is overexpressed in 30% of ovarian cancers associated with a poor prognosis. Knockdown of SIK2 with siRNA has inhibited ovarian cancer cell growth and enhanced paclitaxel sensitivity in cell culture and in xenografts. Given the challenges of delivering siRNA to cancer cells in vivo, we have sought small molecule inhibitors of SIK2 to permit clinical trials, alone and in combination with paclitaxel. Fragment-based design strategies utilizing SIK2 ATP-binding site residues, scaffold-hopping, SIK2 binding assay and subsequent SAR have led to the discovery of potent, selective, orally bioavailable first-in-class SIK2 inhibitors. Here we describe the identification and the preclinical characterization of ARN-3236 and its novel analogue ARN-3252 belonging to the same chemical class, suitable for oral administration. ARN-3236 and ARN-3252 compounds are highly potent (IC50: 1 and 5 nM), ATP competitive SIK2 inhibitors, characterized by high selectivity when tested against a panel of more than 456 kinases. ARN-3236 and ARN-3252 potently blocked proliferation of human ovarian cancer cell lines with endogenous SIK2 activation including OVCAR-3, SKOv3, HEY and ES-2 with an IC50 between 0.5 to 3.0 nM. Inhibition of proliferation has been observed in 9 additional ovarian cancer cell lines. The ARN-3236 and ARN-3252 exhibit a promising in vitro ADME profile and favorable in vivo PK parameters in mice and rats, including oral bioavailability. When tested in vivo in three murine subcutaneous xenograft models employing OVCAR-3, SKOv3 and ES-2 cells, ARN-3236 displayed dose-dependent tumor growth inhibition following daily oral administration at 30, 60 and 100 mg/Kg, with tumor regression observed at these dose levels. The lead identification, optimization, SAR, PK, single agent efficacy, efficacy in combination with paclitaxel and dose-dependent target modulation and the maintenance of SIK2 phosphorylation inhibition data will be presented. Given these specific small molecule inhibitors, SIK2 may provide a valuable target for treatment of a subset of human ovarian cancers.
Citation Format: Albandri Alfredi, Shu Zhang, Weiqu Mao, Yan Wang, Hiroshi Takemori, Zhen Lu, Robert C. Bast, Hariprasad Vankayalapati. Highly potent and orally available SIK2 inhibitors block growth of human ovarian cancer cells in culture and xenografts. [abstract]. In: Proceedings of the 105th Annual Meeting of the American Association for Cancer Research; 2014 Apr 5-9; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2014;74(19 Suppl):Abstract nr 749. doi:10.1158/1538-7445.AM2014-749
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Affiliation(s)
| | - Shu Zhang
- 1University of Texas M.D. Anderson Cancer Center, Houston, TX
| | - Weiqu Mao
- 1University of Texas M.D. Anderson Cancer Center, Houston, TX
| | - Yan Wang
- 1University of Texas M.D. Anderson Cancer Center, Houston, TX
| | - Hiroshi Takemori
- 2National Institute of Biomedical Innovation (NIBIO), Osaka, Japan
| | - Zhen Lu
- 1University of Texas M.D. Anderson Cancer Center, Houston, TX
| | - Robert C. Bast
- 1University of Texas M.D. Anderson Cancer Center, Houston, TX
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Saito S, Kamogawa Y, Nakamura K, Watanabe R, Fujita Y, Shirai T, Shirota Y, Fujii H, Ishii T, Ito K, Shimokawa H, Takemori H, Konta T, Komatsuda A, Izumiyama T, Hirabayashi Y, Sato Y, Urata Y, Kawaguchi Y, Harigae H. FRI0501 Fate of Collagen Disease Related Digital Skin Ulcers Treated Only under Currently Approved Therapies: A Control Study Comparing with the New Shockwave Therapy toward Digital Ulcers of Scleroderma. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Popov S, Takemori H, Tokudome T, Mao Y, Otani K, Mochizuki N, Pires N, Pinho MJ, Franco-Cereceda A, Torielli L, Ferrandi M, Hamsten A, Soares-da-Silva P, Eriksson P, Bertorello AM, Brion L. Lack of salt-inducible kinase 2 (SIK2) prevents the development of cardiac hypertrophy in response to chronic high-salt intake. PLoS One 2014; 9:e95771. [PMID: 24752134 PMCID: PMC3994160 DOI: 10.1371/journal.pone.0095771] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 01/30/2014] [Accepted: 03/28/2014] [Indexed: 01/01/2023] Open
Abstract
Cardiac left ventricle hypertrophy (LVH) constitutes a major risk factor for heart failure. Although LVH is most commonly caused by chronic elevation in arterial blood pressure, reduction of blood pressure to normal levels does not always result in regression of LVH, suggesting that additional factors contribute to the development of this pathology. We tested whether genetic preconditions associated with the imbalance in sodium homeostasis could trigger the development of LVH without concomitant increases in blood pressure. The results showed that the presence of a hypertensive variant of α-adducin gene in Milan rats (before they become hypertensive) resulted in elevated expression of genes associated with LVH, and of salt-inducible kinase 2 (SIK2) in the left ventricle (LV). Moreover, the mRNA expression levels of SIK2, α-adducin, and several markers of cardiac hypertrophy were positively correlated in tissue biopsies obtained from human hearts. In addition, we found in cardiac myocytes that α-adducin regulates the expression of SIK2, which in turn mediates the effects of adducin on hypertrophy markers gene activation. Furthermore, evidence that SIK2 is critical for the development of LVH in response to chronic high salt diet (HS) was obtained in mice with ablation of the sik2 gene. Increases in the expression of genes associated with LVH, as well as increases in LV wall thickness upon HS, occurred only in sik2+/+ but not in sik2−/− mice. Thus LVH triggered by HS or the presence of a genetic variant of α-adducin requires SIK2 and is independent of elevated blood pressure. Inhibitors of SIK2 may constitute part of a novel therapeutic regimen aimed at prevention/regression of LVH.
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Affiliation(s)
- Sergej Popov
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolism, National Institute for Biomedical Innovation, Osaka, Japan
| | - Takeshi Tokudome
- Department of Biochemistry, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Yuanjie Mao
- Department of Biochemistry, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Kentaro Otani
- Regenerative Medicine and Tissue Engineering, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Naoki Mochizuki
- Cell Biology, National Cerebral and Cardiovascular Research Institute, Osaka, Japan
| | - Nuno Pires
- BIAL - Portela & C, S.A., S. Mamede do Coronado, Portugal
| | - Maria João Pinho
- MedInUP - Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
| | - Anders Franco-Cereceda
- Cardiothoracic Surgery Unit, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Lucia Torielli
- Prassis Sigma-Tau Research Institute, Settimo Milanese, Milan, Italy
| | - Mara Ferrandi
- Prassis Sigma-Tau Research Institute, Settimo Milanese, Milan, Italy
| | - Anders Hamsten
- Cardiovascular Genetics and Genomics, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Patricio Soares-da-Silva
- BIAL - Portela & C, S.A., S. Mamede do Coronado, Portugal
- MedInUP - Center for Drug Discovery and Innovative Medicines, University of Porto, Porto, Portugal
| | - Per Eriksson
- Cardiovascular Genetics and Genomics, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Alejandro M. Bertorello
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Laura Brion
- Membrane Signaling Networks, Department of Medicine, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
- * E-mail:
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Tang HMV, Gao WW, Chan CP, Siu YT, Wong CM, Kok KH, Ching YP, Takemori H, Jin DY. Metformin inhibits human T-cell leukemia virus type 1 transcription through activation of LKB1 and salt-inducible kinases. Retrovirology 2014. [PMCID: PMC4044169 DOI: 10.1186/1742-4690-11-s1-p112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Hei-Man V Tang
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Wei-Wei Gao
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Ching-Ping Chan
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Yeung-Tung Siu
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Chi-Ming Wong
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Kin-Hang Kok
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
| | - Yick-Pang Ching
- Department of Anatomy, The University of Hong Kong, Pokfulam, Hong Kong
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolism, National Institute of Biomedical Innovation, Osaka, Japan
| | - Dong-Yan Jin
- Department of Biochemistry, The University of Hong Kong, Pokfulam, Hong Kong
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Ripley B, Fujimoto M, Takemori H, Lee S, Han Y, Yang L, Ohkawara T, Serada S, Chinen I, Masuda K, Kawai T, Naka T, Kishimoto T. 214. Cytokine 2013. [DOI: 10.1016/j.cyto.2013.06.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yu J, Hu X, Yang Z, Takemori H, Li Y, Zheng H, Hong S, Liao Q, Wen X. Salt-inducible kinase 1 is involved in high glucose-induced mesangial cell proliferation mediated by the ALK5 signaling pathway. Int J Mol Med 2013; 32:151-7. [PMID: 23670276 DOI: 10.3892/ijmm.2013.1377] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 04/16/2013] [Indexed: 01/18/2023] Open
Abstract
High glucose levels can induce mesangial cell proliferation and extracellular matrix (ECM) accumulation through the type I activin receptor-like kinase 5 (ALK5) signaling pathway. Salt-inducible kinase 1 (SIK1) prevents fibrosis by downregulating ALK5, while the expression level of the SIK1 protein itself is downregulated by glucose in neuronal cells following ischemia. In this study, we investigated the correlation between SIK1 and the ALK5 signaling pathway in a rat glomerular mesangial cell line (HBZY-1 cells). We found that high glucose levels downregulated the expression level of SIK1 and suppressed the phosphorylation of SIK1 at Thr-182. The downregulation of SIK1 by high glucose was accompanied by the activation of the ALK5 signaling pathway, while the overexpression of SIK1 in the HBZY-1 cells resulted in a decrease in the ALK5 protein level, as well in the levels of its downstream targets, including fibronectin and plasminogen activator inhibitor type I. In conclusion, high glucose may activate the ALK5 signaling pathway by downregulating SIK1, and SIK1 may be a protective factor against cellular proliferation and ECM accumulation in glomerular mesangial cells under high glucose conditions.
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Affiliation(s)
- Jie Yu
- Department of Traditional Chinese Medicine and Endocrinology, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
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Tang HMV, Gao WW, Chan CP, Siu YT, Wong CM, Kok KH, Ching YP, Takemori H, Jin DY. LKB1 tumor suppressor and salt-inducible kinases negatively regulate human T-cell leukemia virus type 1 transcription. Retrovirology 2013; 10:40. [PMID: 23577667 PMCID: PMC3640950 DOI: 10.1186/1742-4690-10-40] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Accepted: 04/02/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Human T-cell leukemia virus type 1 (HTLV-1) causes adult T-cell leukemia (ATL). Treatment options are limited and prophylactic agents are not available. We have previously demonstrated an essential role for CREB-regulating transcriptional coactivators (CRTCs) in HTLV-1 transcription. RESULTS In this study we report on the negative regulatory role of LKB1 tumor suppressor and salt-inducible kinases (SIKs) in the activation of HTLV-1 long terminal repeats (LTR) by the oncoprotein Tax. Activation of LKB1 and SIKs effectively blunted Tax activity in a phosphorylation-dependent manner, whereas compromising these kinases, but not AMP-dependent protein kinases, augmented Tax function. Activated LKB1 and SIKs associated with Tax and suppressed Tax-induced LTR activation by counteracting CRTCs and CREB. Enforced expression of LKB1 or SIK1 in cells transfected with HTLV-1 molecular clone pX1MT repressed proviral transcription. On the contrary, depletion of LKB1 in pX1MT-transfected cells and in HTLV-1-transformed T cells boosted the expression of Tax. Treatment of HTLV-1 transformed cells with metformin led to LKB1/SIK1 activation, reduction in Tax expression, and inhibition of cell proliferation. CONCLUSIONS Our findings revealed a new function of LKB1 and SIKs as negative regulators of HTLV-1 transcription. Pharmaceutical activation of LKB1 and SIKs might be considered as a new strategy in anti-HTLV-1 and anti-ATL therapy.
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Affiliation(s)
- Hei-Man Vincent Tang
- Department of Biochemistry, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
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Uebi T, Itoh Y, Hatano O, Kumagai A, Sanosaka M, Sasaki T, Sasagawa S, Doi J, Tatsumi K, Mitamura K, Morii E, Aozasa K, Kawamura T, Okumura M, Nakae J, Takikawa H, Fukusato T, Koura M, Nish M, Hamsten A, Silveira A, Bertorello AM, Kitagawa K, Nagaoka Y, Kawahara H, Tomonaga T, Naka T, Ikegawa S, Tsumaki N, Matsuda J, Takemori H. Involvement of SIK3 in glucose and lipid homeostasis in mice. PLoS One 2012; 7:e37803. [PMID: 22662228 PMCID: PMC3360605 DOI: 10.1371/journal.pone.0037803] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [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: 02/10/2012] [Accepted: 04/24/2012] [Indexed: 01/20/2023] Open
Abstract
Salt-inducible kinase 3 (SIK3), an AMP-activated protein kinase-related kinase, is induced in the murine liver after the consumption of a diet rich in fat, sucrose, and cholesterol. To examine whether SIK3 can modulate glucose and lipid metabolism in the liver, we analyzed phenotypes of SIK3-deficent mice. Sik3(-/-) mice have a malnourished the phenotype (i.e., lipodystrophy, hypolipidemia, hypoglycemia, and hyper-insulin sensitivity) accompanied by cholestasis and cholelithiasis. The hypoglycemic and hyper-insulin-sensitive phenotypes may be due to reduced energy storage, which is represented by the low expression levels of mRNA for components of the fatty acid synthesis pathways in the liver. The biliary disorders in Sik3(-/-) mice are associated with the dysregulation of gene expression programs that respond to nutritional stresses and are probably regulated by nuclear receptors. Retinoic acid plays a role in cholesterol and bile acid homeostasis, wheras ALDH1a which produces retinoic acid, is expressed at low levels in Sik3(-/-) mice. Lipid metabolism disorders in Sik3(-/-) mice are ameliorated by the treatment with 9-cis-retinoic acid. In conclusion, SIK3 is a novel energy regulator that modulates cholesterol and bile acid metabolism by coupling with retinoid metabolism, and may alter the size of energy storage in mice.
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Affiliation(s)
- Tatsuya Uebi
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Yumi Itoh
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Osamu Hatano
- Department of Anatomy, Nara Medical University, Nara, Japan
| | - Ayako Kumagai
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
- Department of Life Science and Biotechnology, Kansai University, Suita, Osaka, Japan
| | - Masato Sanosaka
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Tsutomu Sasaki
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Satoru Sasagawa
- Department of Bone and Cartilage Biology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Junko Doi
- Food and Nutrition, Senri Kinran University, Osaka, Japan
| | - Keita Tatsumi
- Department of Laboratory Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Kuniko Mitamura
- Faculty of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Katsuyuki Aozasa
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomohiro Kawamura
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Meinoshin Okumura
- Department of General Thoracic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Jun Nakae
- Frontier Medicine on Metabolic Syndrome, Keio University School of Medicine, Tokyo, Japan
| | - Hajime Takikawa
- Department of Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Toshio Fukusato
- Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Minako Koura
- Animal Models for Human Diseases, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Mayumi Nish
- Department of Anatomy, Nara Medical University, Nara, Japan
| | - Anders Hamsten
- Cardiovascular Genetics and Genomics, Atherosclerosis Research Unit, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Angela Silveira
- Cardiovascular Genetics and Genomics, Atherosclerosis Research Unit, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Alejandro M. Bertorello
- Membrane Signaling Networks, Atherosclerosis Research Unit, Karolinska Institutet, CMM, Karolinska University Hospital-Solna, Stockholm, Sweden
| | - Kazuo Kitagawa
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yasuo Nagaoka
- Department of Life Science and Biotechnology, Kansai University, Suita, Osaka, Japan
| | - Hidehisa Kawahara
- Department of Life Science and Biotechnology, Kansai University, Suita, Osaka, Japan
| | - Takeshi Tomonaga
- Laboratory of Proteome Research, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Tetsuji Naka
- Laboratory for Immune Signal, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Shigeo Ikegawa
- Faculty of Pharmaceutical Sciences, Kinki University, Osaka, Japan
| | - Noriyuki Tsumaki
- Department of Bone and Cartilage Biology, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Junichiro Matsuda
- Animal Models for Human Diseases, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
| | - Hiroshi Takemori
- Laboratory of Cell Signaling and Metabolic Disease, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan
- * E-mail:
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