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Uehara N, Shibusawa N, Mikami Y, Kyumoto-Nakamura Y, Sonoda S, Kato H, Yamaza T, Kukita T. Bone metastatic mammary tumor cell-derived extracellular vesicles inhibit osteoblast maturation via JNK signaling. Arch Biochem Biophys 2023; 750:109821. [PMID: 37979903 DOI: 10.1016/j.abb.2023.109821] [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: 08/21/2023] [Revised: 10/30/2023] [Accepted: 11/14/2023] [Indexed: 11/20/2023]
Abstract
The metastases of breast cancer to bone often cause osteolytic lesions not only by stimulating osteoclasts to resorb the bone but also by inhibiting osteoblasts from bone formation. Although tumor cell-derived extracellular vesicles (EVs) promote osteoclast differentiation and bone resorption, their roles in osteoblast differentiation and functions have not been elucidated. In this study, we investigated the effects of breast cancer cell-derived EVs on osteoblast differentiation and functions in vitro. We found that upon osteogenic induction, 4T1 bone metastatic mouse mammary tumor cell-derived EVs (4T1-EVs) were inhibited matrix mineralization of ST2 mouse bone marrow stromal cells. Temporal expression analysis of osteoblast marker genes, including runt-related transcription factor 2 (Runx2), osterix (Osx), alkaline phosphatase (Alp), collagen type I (Col1a1), bone sialoprotein (Bsp), and osteocalcin (Bglap) revealed that 4T1-EVs decreased their expression during the late stage of osteoblast differentiation. Elevated levels of c-Jun N-terminal kinase (JNK) phosphorylation, upon osteogenic induction, were diminished by 4T1-EVs, significantly. In contrast, the nullification of reduced JNK phosphorylation by anisomycin, a potent JNK activator, increased the expression levels of osteoblast differentiation markers. Overall, our data indicated that 4T1-EVs affect osteoblast maturation, at least partially, through the regulation of JNK activity, which provides novel insights into the pathological impact of osteolytic bone metastasis and the role of EVs in osteoblast differentiation.
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Affiliation(s)
- Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan.
| | - Nobuhide Shibusawa
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
| | - Yoshikazu Mikami
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
| | - Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
| | - Hiroki Kato
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Japan
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2
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Murayama M, Hirata H, Shiraki M, Iovanna JL, Yamaza T, Kukita T, Komori T, Moriishi T, Ueno M, Morimoto T, Mawatari M, Kukita A. Nupr1 deficiency downregulates HtrA1, enhances SMAD1 signaling, and suppresses age-related bone loss in male mice. J Cell Physiol 2023; 238:566-581. [PMID: 36715607 DOI: 10.1002/jcp.30949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/14/2022] [Accepted: 01/04/2023] [Indexed: 01/31/2023]
Abstract
Nuclear protein 1 (NUPR1) is a stress-induced protein activated by various stresses, such as inflammation and oxidative stress. We previously reported that Nupr1 deficiency increased bone volume by enhancing bone formation in 11-week-old mice. Analysis of differentially expressed genes between wild-type (WT) and Nupr1-knockout (Nupr1-KO) osteocytes revealed that high temperature requirement A 1 (HTRA1), a serine protease implicated in osteogenesis and transforming growth factor-β signaling was markedly downregulated in Nupr1-KO osteocytes. Nupr1 deficiency also markedly reduced HtrA1 expression, but enhanced SMAD1 signaling in in vitro-cultured primary osteoblasts. In contrast, Nupr1 overexpression enhanced HtrA1 expression in osteoblasts, suggesting that Nupr1 regulates HtrA1 expression, thereby suppressing osteoblastogenesis. Since HtrA1 is also involved in cellular senescence and age-related diseases, we analyzed aging-related bone loss in Nupr1-KO mice. Significant spine trabecular bone loss was noted in WT male and female mice during 6-19 months of age, whereas aging-related trabecular bone loss was attenuated, especially in Nupr1-KO male mice. Moreover, cellular senescence-related markers were upregulated in the osteocytes of 6-19-month-old WT male mice but markedly downregulated in the osteocytes of 19-month-old Nupr1-KO male mice. Oxidative stress-induced cellular senescence stimulated Nupr1 and HtrA1 expression in in vitro-cultured primary osteoblasts, and Nupr1 overexpression enhanced p16ink4a expression in osteoblasts. Finally, NUPR1 expression in osteocytes isolated from the bones of patients with osteoarthritis was correlated with age. Collectively, these results indicate that Nupr1 regulates HtrA1-mediated osteoblast differentiation and senescence. Our findings unveil a novel Nupr1/HtrA1 axis, which may play pivotal roles in bone formation and age-related bone loss.
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Affiliation(s)
- Masatoshi Murayama
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Hirohito Hirata
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Makoto Shiraki
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Juan L Iovanna
- Centre de Recherche en Cancérologie de Marseille, INSERM U 1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology & Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - Toshihisa Komori
- Department of Molecular Bone Biology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Takeshi Moriishi
- Department of Cell Biology, Nagasaki University Graduate School of Biomedical Science, Nagasaki, Japan
| | - Masaya Ueno
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Tadatsugu Morimoto
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaaki Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan
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3
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Uehara N, Kyumoto-Nakamura Y, Mikami Y, Hayatsu M, Sonoda S, Yamaza T, Kukita A, Kukita T. miR-92a-3p encapsulated in bone metastatic mammary tumor cell-derived extracellular vesicles modulates mature osteoclast longevity. Cancer Sci 2022; 113:4219-4229. [PMID: 36053115 DOI: 10.1111/cas.15557] [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: 04/07/2022] [Revised: 08/12/2022] [Accepted: 08/25/2022] [Indexed: 12/15/2022] Open
Abstract
Aberrant osteoclast formation and activation are the hallmarks of osteolytic metastasis. Extracellular vesicles (EVs), released from bone metastatic tumor cells, play a pivotal role in the progression of osteolytic lesions. However, the mechanisms through which tumor cell-derived EVs regulate osteoclast differentiation and function have not been fully elucidated. In this study, we found that 4T1 bone metastatic mouse mammary tumor cell-derived EVs (4T1-EVs) are taken up by mouse bone marrow macrophages to facilitate osteoclastogenesis. Furthermore, treatment of mature osteoclasts with 4T1-EVs promoted bone resorption, which was accompanied by enhanced survival of mature osteoclasts through the negative regulation of caspase-3. By comparing the miRNA content in 4T1-EVs with that in 67NR nonmetastatic mouse mammary tumor cell-derived EVs (67NR-EVs), miR-92a-3p was identified as one of the most enriched miRNAs in 4T1-EVs, and its transfer into mature osteoclasts significantly reduced apoptosis. Bioinformatic and Western blot analyses revealed that miR-92a-3p directly targeted phosphatase and tensin homolog (PTEN) in mature osteoclasts, resulting in increased levels of phospho-Akt. Our findings provide novel insights into the EV-mediated regulation of osteoclast survival through the transfer of miR-92a-3p, which enhances mature osteoclast survival via the Akt survival signaling pathway, thus promoting bone resorption.
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Affiliation(s)
- Norihisa Uehara
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yukari Kyumoto-Nakamura
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yoshikazu Mikami
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Manabu Hayatsu
- Division of Microscopic Anatomy, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Soichiro Sonoda
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takayoshi Yamaza
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Toshio Kukita
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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4
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Xu X, Shobuike T, Shiraki M, Kamohara A, Hirata H, Murayama M, Mawatari D, Ueno M, Morimoto T, Kukita T, Mawatari M, Kukita A. Leukemia/lymphoma-related factor (LRF) or osteoclast zinc finger protein (OCZF) overexpression promotes osteoclast survival by increasing Bcl-xl mRNA: A novel regulatory mechanism mediated by the RNA binding protein SAM68. J Transl Med 2022; 102:1000-1010. [PMID: 36775415 DOI: 10.1038/s41374-022-00792-w] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/08/2022] Open
Abstract
RANKL induces NFATc1, a key transcriptional factor to induce osteoclast-specific genes such as cathepsin K, whereas transcriptional control of osteoclast survival is not fully understood. Leukemia/lymphoma-related factor (LRF) in mouse and osteoclast zinc finger protein (OCZF) in rat are zinc finger and BTB domain-containing protein (zBTB) family of transcriptional regulators, and are critical regulators of hematopoiesis. We have previously shown that differentiation and survival were enhanced in osteoclasts from OCZF-Transgenic (Tg) mice. In the present study, we show a possible mechanism of osteoclast survival regulated by LRF/OCZF and the role of OCZF overexpression in pathological bone loss. In the in vitro cultures, LRF was highly colocalized with NFATc1 in cells of early stage in osteoclastogenesis, but only LRF expression persisted after differentiation into mature osteoclasts. LRF expression was further enhanced in resorbing osteoclasts formed on dentin slices. Osteoclast survival inhibitor such as alendronate, a bisphosphonate reduced LRF expression. Micro CT evaluation revealed that femurs of OCZF-Tg mice showed significantly lower bone volume compared to that of WT mice. Furthermore, OCZF overexpression markedly promoted bone loss in ovariectomy-induced osteolytic mouse model. The expression of anti-apoptotic Bcl-xl mRNA, which is formed by alternative splicing, was enhanced in the cultures in which osteoclasts are formed from OCZF-Tg mice. In contrast, the expression of pro-apoptotic Bcl-xs mRNA was lost in the culture derived from OCZF-Tg mice. We found that the expression levels of RNA binding splicing regulator, Src substrate associated in mitosis of 68 kDa (Sam68) protein were markedly decreased in OCZF-Tg mice-derived osteoclasts. In addition, shRNA-mediated knockdown of Sam68 expression increased the expression of Bcl-xl mRNA, suggesting that SAM68 regulates the expression of Bcl-xl. These results indicate that OCZF overexpression reduces protein levels of Sam68, thereby promotes osteoclast survival, and suggest that LRF/OCZF is a promising target for regulating pathological bone loss.
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Affiliation(s)
- Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
- Department of Molecular Cell Biology & Oral Anatomy, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Takeo Shobuike
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Makoto Shiraki
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Asana Kamohara
- Department of Oral & Maxillofacial Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Hirohito Hirata
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Masatoshi Murayama
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Daisuke Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaya Ueno
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Tadatsugu Morimoto
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
| | - Masaaki Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.
- Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan.
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5
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Hirata H, Kamohara A, Murayama M, Nishioka K, Honda H, Urano Y, Soejima H, Oki S, Kukita T, Kawano S, Mawatari M, Kukita A. A novel role of helix-loop-helix transcriptional factor Bhlhe40 in osteoclast activation. J Cell Physiol 2022; 237:3912-3926. [PMID: 35908202 DOI: 10.1002/jcp.30844] [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] [Received: 04/26/2022] [Revised: 06/21/2022] [Accepted: 07/18/2022] [Indexed: 12/17/2022]
Abstract
The basic helix-loop-helix transcriptional factor, Bhlhe40 has been shown as a crucial regulator of immune response, tumorigenesis, and circadian rhythms. We identified Bhlhe40 as a possible regulator of osteoclast differentiation and function by shRNA library screening and found that Bhlhe40 was required for osteoclast activation. Bhlhe40 expression was induced in bone marrow macrophages (BMMs) by RANKL, whereas the expression of its homolog Bhlhe41 was decreased in osteoclastogenesis. μCT analysis of tibias revealed that Bhlhe40 knockout (KO) mice exhibited increased bone volume phenotype. Bone morphometric analysis showed that osteoclast number and bone resorption were decreased in Bhlhe40 KO mice, whereas significant differences in the osteoblast parameters were not seen between wild-type (WT) and Bhlhe40 KO mice. In vitro culture of BMMs showed that Bhlhe40 deficiency did not cause difference in osteoclast formation. In contrast, bone resorption activity of Bhlhe40 KO osteoclasts was markedly reduced in comparison with that of WT osteoclasts. Analysis of potential target genes of Bhlhe40 using data-mining platform ChIP-Atlas (http://chip-atlas.org) revealed that predicted target genes of Bhlhe40 were related to proton transport and intracellular vesicle acidification. We then analyzed the expression of proton pump, the vacuolar (V)-ATPases which are responsible for bone resorption. The expression of V-ATPases V1c1 and V0a3 was suppressed in Bhlhe40 KO osteoclasts. In addition, Lysosensor yellow/blue DND 160 staining demonstrated that vesicular acidification was attenuated in vesicles of Bhlhe40 KO osteoclasts. Furthermore, analysis with pH-sensitive fluorescent probe showed that proton secretion was markedly suppressed in Bhlhe40 KO osteoclasts compared to that in WT osteoclasts. Our findings suggest that Bhlhe40 plays a novel important role in the regulation of acid production in osteoclastic bone resorption.
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Affiliation(s)
- Hirohito Hirata
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Asana Kamohara
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Oral & Maxillofacial Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Masatoshi Murayama
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Kenichi Nishioka
- Department of Internal Medicine, Musashimurayama Hospital, Tokyo, Japan
| | - Hiroaki Honda
- Field of Human Disease Models, Major in Advanced Life Sciences and Medicine, Institute of Laboratory Animals, Tokyo Women's Medical University, Tokyo, Japan
| | - Yasuteru Urano
- Department of Chemical Biology & Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Chemistry & Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Hidenobu Soejima
- Division of Molecular Genetics & Epigenetics, Department of Biomolecular Science, Faculty of Medicine, Saga University, Saga, Japan
| | - Shinya Oki
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Shunsuke Kawano
- Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaaki Mawatari
- Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan
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6
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Zhang JQ, Takahashi A, Gu JY, Zhang X, Kyumoto-Nakamura Y, Kukita A, Uehara N, Hiura H, Yamaza T, Kukita T. In vitro and in vivo detection of tunneling nanotubes in normal and pathological osteoclastogenesis involving osteoclast fusion. J Transl Med 2021; 101:1571-1584. [PMID: 34537825 DOI: 10.1038/s41374-021-00656-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 08/04/2021] [Accepted: 08/04/2021] [Indexed: 11/09/2022] Open
Abstract
Osteoclasts are multinucleated cells formed through specific recognition and fusion of mononuclear osteoclast precursors derived from hematopoietic stem cells. Detailed cellular events concerning cell fusion in osteoclast differentiation remain ambiguous. Tunneling nanotubes (TNTs), actin-based membrane structures, play an important role in intercellular communication between cells. We have previously reported the presence of TNTs in the fusion process of osteoclastogenesis. Here we analyzed morphological details of TNTs using scanning electron microscopy. The osteoclast precursor cell line RAW-D was stimulated to form osteoclast-like cells, and morphological details in the appearance of TNTs were extensively analyzed. Osteoclast-like cells could be classified into three types; early osteoclast precursors, late osteoclast precursors, and multinucleated osteoclast-like cells based on the morphological characteristics. TNTs were frequently observed among these three types of cells. TNTs could be classified into thin, medium, and thick TNTs based on the diameter and length. The shapes of TNTs were dynamically changed from thin to thick. Among them, medium TNTs were often observed between two remote cells, in which side branches attached to the culture substrates and beaded bulge-like structures were often observed. Cell-cell interaction through TNTs contributed to cell migration and rapid transport of information between cells. TNTs were shown to be involved in cell-cell fusion between osteoclast precursors and multinucleated osteoclast-like cells, in which movement of membrane vesicles and nuclei was observed. Formation of TNTs was also confirmed in primary cultures of osteoclasts. Furthermore, we have successfully detected TNTs formed between osteoclasts observed in the bone destruction sites of arthritic rats. Thus, formation of TNTs may be important for the differentiation of osteoclasts both in vitro and in vivo. TNTs could be one target cellular structure for the regulation of osteoclast differentiation and function in bone diseases.
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Affiliation(s)
- Jing-Qi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akira Takahashi
- Department of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Jiong-Yan Gu
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Xiaoxu Zhang
- Department of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Research Center of Arthroplasty, Faculty of Medicine, Saga University, Saga, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hidenobu Hiura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- Department of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth, and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
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7
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Gao J, Muroya R, Huang F, Nagata K, Shin M, Nagano R, Tajiri Y, Fujii S, Yamaza T, Aoki K, Tamura Y, Inoue M, Chishaki S, Kukita T, Okabe K, Matsuda M, Mori Y, Kiyoshima T, Jimi E. Bone morphogenetic protein induces bone invasion of melanoma by epithelial-mesenchymal transition via the Smad1/5 signaling pathway. J Transl Med 2021; 101:1475-1483. [PMID: 34504305 DOI: 10.1038/s41374-021-00661-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/07/2021] [Accepted: 08/07/2021] [Indexed: 02/07/2023] Open
Abstract
Oral malignant melanoma, which frequently invades the hard palate or maxillary bone, is extremely rare and has a poor prognosis. Bone morphogenetic protein (BMP) is abundantly expressed in bone matrix and is highly expressed in malignant melanoma, inducing an aggressive phenotype. We examined the role of BMP signaling in the acquisition of an aggressive phenotype in melanoma cells in vitro and in vivo. In five cases, immunohistochemistry indicated the phosphorylation of Smad1/5 (p-Smad1/5) in the nuclei of melanoma cells. In the B16 mouse and A2058 human melanoma cell lines, BMP2, BMP4, or BMP7 induces morphological changes accompanied by the downregulation of E-cadherin, and the upregulation of N-cadherin and Snail, markers of epithelial-mesenchymal transition (EMT). BMP2 also stimulates cell invasion by increasing matrix metalloproteinase activity in B16 cells. These effects were canceled by the addition of LDN193189, a specific inhibitor of Smad1/5 signaling. In vivo, the injection of B16 cells expressing constitutively activated ALK3 enhanced zygoma destruction in comparison to empty B16 cells by increasing osteoclast numbers. These results suggest that the activation of BMP signaling induces EMT, thus driving the acquisition of an aggressive phenotype in malignant melanoma.
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Affiliation(s)
- Jing Gao
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Ryusuke Muroya
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
- Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Fei Huang
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kengo Nagata
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masashi Shin
- Department of Physiological Sciences and Molecular Biology, Fukuoka Dental College, 2-5-1 Tamura, Sawara-ku, Fukuoka, 814-0175, Japan
- Oral Medicine Center, Fukuoka Dental College, 2-5-1 Tamura, Sawara-ku, Fukuoka, 814-0175, Japan
| | - Ryoko Nagano
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
- Department of Endodontology and Operative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yudai Tajiri
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shinsuke Fujii
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazuhiro Aoki
- Department of Functional Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Yukihiko Tamura
- Department of Bio-Matrix, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Mayuko Inoue
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Sakura Chishaki
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Koji Okabe
- Department of Physiological Sciences and Molecular Biology, Fukuoka Dental College, 2-5-1 Tamura, Sawara-ku, Fukuoka, 814-0175, Japan
| | - Miho Matsuda
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshihide Mori
- Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Tamotsu Kiyoshima
- Laboratory of Oral Pathology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Eijiro Jimi
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan.
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan.
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8
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Kukita T, Hiura H, Gu JY, Zhang JQ, Kyumoto-Nakamura Y, Uehara N, Murata S, Sonoda S, Yamaza T, Takahashi I, Kukita A. Modulation of osteoclastogenesis through adrenomedullin receptors on osteoclast precursors: initiation of differentiation by asymmetric cell division. J Transl Med 2021; 101:1449-1457. [PMID: 34611305 DOI: 10.1038/s41374-021-00633-2] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 05/26/2021] [Accepted: 06/18/2021] [Indexed: 11/08/2022] Open
Abstract
Adrenomedullin (ADM), a member of the calcitonin family of peptides, is a potent vasodilator and was shown to have the ability to modulate bone metabolism. We have previously found a unique cell surface antigen (Kat1 antigen) expressed in rat osteoclasts, which is involved in the functional regulation of the calcitonin receptor (CTR). Cross-linking of cell surface Kat1 antigen with anti-Kat1 antigen monoclonal antibody (mAbKat1) stimulated osteoclast formation only under conditions suppressed by calcitonin. Here, we found that ADM provoked a significant stimulation in osteoclastogenesis only in the presence of calcitonin; a similar biological effect was seen with mAbKat1 in the bone marrow culture system. This stimulatory effect on osteoclastogenesis mediated by ADM was abolished by the addition of mAbKat1. 125I-labeled rat ADM (125I-ADM)-binding experiments involving micro-autoradiographic studies demonstrated that mononuclear precursors of osteoclasts abundantly expressed ADM receptors, and the specific binding of 125I-ADM was markedly inhibited by the addition of mAbKat1, suggesting a close relationship between the Kat1 antigen and the functional ADM receptors expressed on cells in the osteoclast lineage. ADM receptors were also detected in the osteoclast progenitor cells in the late mitotic phase, in which only one daughter cell of the dividing cell express ADM receptors, suggesting the semiconservative cell division of the osteoclast progenitors in the initiation of osteoclastogenesis. Messenger RNAs for the receptor activity-modifying-protein 1 (RAMP1) and calcitonin receptor-like receptor (CRLR) were expressed in cells in the osteoclast lineage; however, the expression of RAMP2 or RAMP3 was not detected in these cells. It is suggested that the Kat1 antigen is involved in the functional ADM receptor distinct from the general ADM receptor, consisting of CRLR and RAMP2 or RAMP3. Modulation of osteoclastogenesis through functional ADM receptors abundantly expressed on mononuclear osteoclast precursors is supposed to be important in the fine regulation of osteoclast differentiation in a specific osteotrophic hormonal condition with a high level of calcitonin in blood.
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Affiliation(s)
- Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan.
| | - Hidenobu Hiura
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
- Division of Oral Health, Growth, and Development, Department of Orthodontics and Dental Orthopedics, Graduate School of Dental Science, Kyushu University, 3-3-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Jiong-Yan Gu
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Jing-Qi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Sara Murata
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
- Division of Oral Health, Growth, and Development, Department of Orthodontics and Dental Orthopedics, Graduate School of Dental Science, Kyushu University, 3-3-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, Fukuoka, 812-8582, Japan
| | - Ichiro Takahashi
- Division of Oral Health, Growth, and Development, Department of Orthodontics and Dental Orthopedics, Graduate School of Dental Science, Kyushu University, 3-3-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Akiko Kukita
- Department of Research Center of Arthroplasty, Faculty of Medicine, Saga University, 5-1-1 Nabeshima, Saga, Saga, 849-0937, Japan
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9
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Hirata H, Xu X, Nishioka K, Matsuhisa F, Kitajima S, Kukita T, Murayama M, Urano Y, Miyamoto H, Mawatari M, Kukita A. PMEPA1 and NEDD4 control the proton production of osteoclasts by regulating vesicular trafficking. FASEB J 2021; 35:e21281. [PMID: 33484199 DOI: 10.1096/fj.202001795r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/13/2020] [Accepted: 12/01/2020] [Indexed: 11/11/2022]
Abstract
Osteoclast bone resorption activity is critically regulated to maintain bone homeostasis. Osteoclasts resorb bone by producing protons and acid hydrolase via lysosomal secretion, however, a detailed mechanism remains elusive. PMEPA1 is a vesicular membrane protein, which binds to the NEDD4 family member of ubiquitin ligases. We have previously reported that Pmepa1 is highly expressed in bone resorbing osteoclasts, and regulates bone resorption. Here, we investigated the mechanism of bone resorption regulated by PMEPA1. Mutant mice lacking NEDD4-binding domains of PMEPA1 displayed enhanced bone volume, and reduced bone resorption activity in comparison with those of WT mice. Analysis with pH-sensitive fluorescence probe revealed that proton secretion from osteoclasts significantly decreased in Pmepa1 mutant osteoclasts. Immunofluorescence analysis revealed that PMEPA1 was colocalized with NEDD4, V0A3, and V0D2 subunits of vacuolar ATPase, which regulate the proton production of osteoclasts. In addition, Nedd4 knockdown reduced bone resorption and proton secretion of osteoclasts. Furthermore, Pmepa1 mutation and Nedd4 knockdown altered the cytoplasmic distribution of components of V-ATPase and expression of autophagy-related proteins, suggesting that lysosomal secretion is affected. Collectively, these findings indicate that PMEPA1 controls proton secretion from osteoclasts via NEDD4 by regulating vesicular trafficking, and NEDD4 is an important regulator of bone resorption.
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Affiliation(s)
- Hirohito Hirata
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Molecular Cell Biology & Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Kenichi Nishioka
- Department of Internal Medicine, Musashimurayama Hospital, Tokyo, Japan
| | - Fumikazu Matsuhisa
- Division of Biological Resources and Development, Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan
| | - Shuji Kitajima
- Division of Biological Resources and Development, Analytical Research Center for Experimental Sciences, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Masatoshi Murayama
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasuteru Urano
- Department of Chemical Biology & Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Chemistry & Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Miyamoto
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaaki Mawatari
- Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
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10
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Sonoda S, Murata S, Kato H, Zakaria F, Kyumoto-Nakamura Y, Uehara N, Yamaza H, Kukita T, Yamaza T. Targeting of Deciduous Tooth Pulp Stem Cell-Derived Extracellular Vesicles on Telomerase-Mediated Stem Cell Niche and Immune Regulation in Systemic Lupus Erythematosus. J Immunol 2021; 206:3053-3063. [PMID: 34078710 DOI: 10.4049/jimmunol.2001312] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/05/2021] [Indexed: 01/09/2023]
Abstract
Systemic transplantation of stem cells from human exfoliated deciduous teeth (SHED) is used to treat systemic lupus erythematosus (SLE)-like disorders in MRL/lpr mice. However, the mechanisms underlying the SHED-based therapy remain unclear. In this study, we hypothesized that trophic factors within SHED-releasing extracellular vesicles (SHED-EVs) ameliorate the SLE-like phenotypes in MRL/lpr mice. SHED-EVs were isolated from the culture supernatant of SHED. SHED-EVs were treated with or without RNase and systemically administered to MRL/lpr mice. Subsequently, recipient bone marrow mesenchymal stem cells (BMMSCs) isolated from SHED-EV-administered MRL/lpr mice were examined for the in vitro and in vivo activity of hematopoietic niche formation and immunoregulation. Furthermore, the recipient BMMSCs were secondarily transplanted into MRL/lpr mice. The systemic SHED-EV infusion ameliorated the SLE-like phenotypes in MRL/lpr mice and improved the functions of recipient BMMSCs by rescuing Tert mRNA-associated telomerase activity, hematopoietic niche formation, and immunoregulation. The secondary transplantation of recipient BMMSCs recovered the immune condition and renal functions of MRL/lpr mice. The RNase treatment depleted RNAs, such as microRNAs, within SHED-EVs, and the RNA-depleted SHED-EVs attenuated the benefits of SHED-EVs in MRL/lpr mice. Collectively, our findings suggest that SHED-secreted RNAs, such as microRNAs, play a crucial role in treating SLE by targeting the telomerase activity of recipient BMMSCs.
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Affiliation(s)
- Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Sara Murata
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Hiroki Kato
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Fouad Zakaria
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Haruyoshi Yamaza
- Department of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, Fukuoka, Japan; and
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11
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Kamohara A, Hirata H, Xu X, Shiraki M, Yamada S, Zhang JQ, Kukita T, Toyonaga K, Hara H, Urano Y, Yamashita Y, Miyamoto H, Kukita A. IgG immune complexes with Staphylococcus aureus protein A enhance osteoclast differentiation and bone resorption by stimulating Fc receptors and TLR2. Int Immunol 2020; 32:89-104. [PMID: 31713625 DOI: 10.1093/intimm/dxz063] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 09/26/2019] [Indexed: 01/18/2023] Open
Abstract
Staphylococcus aureus is a main pathogen of osteomyelitis and protein A is a virulence factor with high affinity for IgG. In this study, we investigated whether S. aureus affects the differentiation and bone resorption of osteoclasts through the IgG-binding capacity of protein A. Staphylococcus aureus pre-treated with serum or IgG showed marked enhancement in osteoclastogenesis and bone resorption compared to non-treated S. aureus or a protein A-deficient mutant. Blocking of the Fc receptor and deletion of the Fcγ receptor gene in osteoclast precursor cells showed that enhanced osteoclastogenesis stimulated by S. aureus IgG immune complexes (ICs) was mediated by the Fc receptor on osteoclast precursor cells. In addition, osteoclastogenesis stimulated by S. aureus ICs but not the protein A-deficient mutant was markedly reduced in osteoclast precursor cells of Myd88-knockout mice. Moreover, NFATc1, Syk and NF-κB signals were necessary for osteoclastogenesis stimulated by S. aureus ICs. The results suggest the contribution of a of Toll-like receptor 2 (TLR2)-Myd88 signal to the activity of S. aureus ICs. We further examined the expression of pro-inflammatory cytokines that is known to be enhanced by FcγR-TLR cross-talk. Osteoclasts induced by S. aureus ICs showed higher expression of TNF-α and IL-1β, and marked stimulation of proton secretion of osteoclasts activated by pro-inflammatory cytokines. Finally, injection of S. aureus, but not the protein A-deficient mutant, exacerbated bone loss in implantation and intra-peritoneal administration mouse models. Our results provide a novel mechanistic aspect of bone loss induced by S. aureus in which ICs and both Fc receptors and TLR pathways are involved.
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Affiliation(s)
- Asana Kamohara
- Department of Pathology and Microbiology, Saga, Japan.,Department of Oral & Maxillofacial Surgery, Saga, Japan
| | - Hirohito Hirata
- Department of Pathology and Microbiology, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Xianghe Xu
- Department of Pathology and Microbiology, Saga, Japan.,Department of Molecular Cell Biology & Oral Anatomy, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
| | - Makoto Shiraki
- Department of Pathology and Microbiology, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Sakuo Yamada
- Department of Medical Technology, Department of Clinical Nutrition, Faculty of Health Science & Technology, Kawasaki University of Medical Welfare, Kurashiki, Okayama, Japan
| | - Jing-Qi Zhang
- Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
| | - Kenji Toyonaga
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hiromitsu Hara
- Department of Immunology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Yasuteru Urano
- Department of Chemical Biology & Molecular Imaging, Graduate School of Medicine , Hongo, Tokyo, Japan.,Department of Chemistry & Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Tokyo, Japan
| | | | | | - Akiko Kukita
- Department of Pathology and Microbiology, Saga, Japan
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12
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Sonoda S, Murata S, Nishida K, Kato H, Uehara N, Kyumoto YN, Yamaza H, Takahashi I, Kukita T, Yamaza T. Extracellular vesicles from deciduous pulp stem cells recover bone loss by regulating telomerase activity in an osteoporosis mouse model. Stem Cell Res Ther 2020; 11:296. [PMID: 32680564 PMCID: PMC7367365 DOI: 10.1186/s13287-020-01818-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/23/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Systemic transplantation of stem cells from human exfoliated deciduous teeth (SHED) recovers bone loss in animal models of osteoporosis; however, the mechanisms underlying this remain unclear. Here, we hypothesized that trophic factors within SHED-releasing extracellular vesicles (SHED-EVs) rescue osteoporotic phenotype. METHODS EVs were isolated from culture supernatant of SHED. SHED-EVs were treated with or without ribonuclease and systemically administrated into ovariectomized mice, followed by the function of recipient bone marrow mesenchymal stem cells (BMMSCs) including telomerase activity, osteoblast differentiation, and sepmaphorine-3A (SEMA3A) secretion. Subsequently, human BMMSCs were stimulated by SHED-EVs with or without ribonuclease treatment, and then human BMMSCs were examined regarding the function of telomerase activity, osteoblast differentiation, and SEMA3A secretion. Furthermore, SHED-EV-treated human BMMSCs were subcutaneously transplanted into the dorsal skin of immunocompromised mice with hydroxyapatite tricalcium phosphate (HA/TCP) careers and analyzed the de novo bone-forming ability. RESULTS We revealed that systemic SHED-EV-infusion recovered bone volume in ovariectomized mice and improved the function of recipient BMMSCs by rescuing the mRNA levels of Tert and telomerase activity, osteoblast differentiation, and SEMA3A secretion. Ribonuclease treatment depleted RNAs, including microRNAs, within SHED-EVs, and these RNA-depleted SHED-EVs attenuated SHED-EV-rescued function of recipient BMMSCs in the ovariectomized mice. These findings were supported by in vitro assays using human BMMSCs incubated with SHED-EVs. CONCLUSION Collectively, our findings suggest that SHED-secreted RNAs, such as microRNAs, play a crucial role in treating postmenopausal osteoporosis by targeting the telomerase activity of recipient BMMSCs.
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Affiliation(s)
- Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Sara Murata
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
- Section of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth & Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Kento Nishida
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroki Kato
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yukari N Kyumoto
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Haruyoshi Yamaza
- Department of Pediatric Dentistry, Division of Oral Health, Growth & Development, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Ichiro Takahashi
- Section of Orthodontics and Dentofacial Orthopedics, Division of Oral Health, Growth & Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Graduate School of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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13
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Badawy T, Kyumoto-Nakamura Y, Uehara N, Zhang J, Sonoda S, Hiura H, Yamaza T, Kukita A, Kukita T. Osteoblast lineage-specific cell-surface antigen (A7) regulates osteoclast recruitment and calcification during bone remodeling. J Transl Med 2019; 99:866-884. [PMID: 30742099 DOI: 10.1038/s41374-018-0179-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 10/19/2018] [Accepted: 11/13/2018] [Indexed: 11/09/2022] Open
Abstract
Bone remodeling is a continuous process characterized by highly coordinated cell-cell interactions in distinct multi-cellular units. Osteoclasts, which are specialized bone resorbing cells, play a central role in bone remodeling. Although the RANKL/RANK axis determines the gross number of osteoclasts present in bone tissue, detailed molecular events regulating bone remodeling related to osteoclast recruitment, initiation of bone remodeling, and coupling of bone resorption and bone formation are still ambiguous. We hypothesized that osteoblast-specific cell-surface molecules contribute to the molecular modulation of bone remodeling. Therefore, we searched for regulatory cell-surface molecules expressed on osteoblasts by use of B-cell hybridoma technology. We obtained a monoclonal antibody A7 (A7 MAb) highly specific to cells of osteoblast-lineage. Here we describe the expression pattern and possible role of A7 antigen specifically recognized by A7 MAb. In vitro, A7 antigen was expressed on cell-surface of osteoblasts and osteoblast-like bone marrow stromal cells. In vivo, A7 antigen was detected in a subset of bone surface osteoblasts and in osteocytes, with a typical cell membrane expression pattern. Tissue array analysis showed only a limited expression of A7 antigen in osteocytes close to the bone surface. Immunoblotting and immunoprecipitation analysis showed that A7 antigen is a lineage-specific cell-surface protein with an approximate molecular weight of 45 KDa. Cross-linking of cell-surface A7 antigen in cultures of osteoclastogenesis showed stimulation of osteoclast formation. Marked suppression of calcification in primary osteoblast cultures was observed when A7 antigen was cross-linked with anti-A7 antigen MAb, A7 MAb. These data suggest that A7 antigen regulates recruitment of osteoclasts and triggering of calcification. A7 antigen may be an important molecule involved in the precise regulation of bone remodeling.
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Affiliation(s)
- Tamer Badawy
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan.,Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, 11553, Egypt
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Jingqi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Hidenobu Hiura
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Nabeshima, Saga, 894-8501, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka, 812-8582, Japan.
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14
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Shiraki M, Xu X, Iovanna JL, Kukita T, Hirata H, Kamohara A, Kubota Y, Miyamoto H, Mawatari M, Kukita A. Deficiency of stress-associated gene Nupr1 increases bone volume by attenuating differentiation of osteoclasts and enhancing differentiation of osteoblasts. FASEB J 2019; 33:8836-8852. [PMID: 31067083 DOI: 10.1096/fj.201802322rr] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 01/31/2023]
Abstract
Nuclear protein 1 (NUPR1) is a multifunctional stress-induced protein involved in regulating tumorigenesis, apoptosis, and autophagy. Bone homeostasis is maintained by bone-resorbing osteoclasts and bone-forming osteoblasts and osteocytes. We aimed to determine the role of NUPR1 in bone metabolism. Using microcomputed tomography, we found that mice lacking Nupr1 exhibited increased bone volume. Histologic analysis showed that Nupr1 deficiency decreased osteoclast numbers but increased osteoblast numbers and osteoid formation. In vitro culture of bone marrow macrophages showed that receptor activator of NF-κB ligand-induced osteoclastogenesis was down-regulated in Nupr1-deficient mice. In contrast, primary osteoblasts from Nupr1-deficient mice revealed that proliferation of osteoblasts and expression of bone matrix proteins were markedly enhanced. In addition, expression of autophagy-related genes, formation of autophagosomes, and cell survival were up-regulated in Nupr1-deficient osteoblasts. In contract, deletion of Nupr1 reduced the formation of osteocyte cellular projection, which is an indicator of mature osteocytes. Importantly, we found that the expression of sclerostin (Sost), an inhibitor of bone formation, was down-regulated in the osteoblasts and osteocytes of Nupr1-deficient mice. Conversely, Nupr1 overexpression enhanced Sost expression in primary osteoblasts. Collectively, these results indicate that Nupr1 deficiency increases bone volume by attenuating production of Sost and osteoclastogenesis and enhancing differentiation of osteoblasts.-Shiraki, M., Xu, X., Iovanna, J. L., Kukita, T., Hirata, H., Kamohara, A., Kubota, Y., Miyamoto, H., Mawatari, M., Kukita, A. Deficiency of stress-associated gene Nupr1 increases bone volume by attenuating differentiation of osteoclasts and enhancing differentiation of osteoblasts.
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Affiliation(s)
- Makoto Shiraki
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Molecular Cell Biology and Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Juan L Iovanna
- Centre de Recherche en Cancérologie de Marseille, INSERM U 1068, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France; and
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University, Fukuoka, Japan
| | - Hirohito Hirata
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Asana Kamohara
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yasushi Kubota
- Division of Hematology, Respiratory Medicine, and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | - Hiroshi Miyamoto
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Masaaki Mawatari
- Department of Orthopedic Surgery, Faculty of Medicine, Saga University, Saga, Japan
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
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15
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Tanaka Y, Sonoda S, Yamaza H, Murata S, Nishida K, Kyumoto-Nakamura Y, Uehara N, Nonaka K, Kukita T, Yamaza T. Acetylsalicylic Acid Treatment and Suppressive Regulation of AKT Accelerate Odontogenic Differentiation of Stem Cells from the Apical Papilla. J Endod 2019; 45:591-598.e6. [DOI: 10.1016/j.joen.2019.01.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 01/07/2019] [Accepted: 01/17/2019] [Indexed: 01/26/2023]
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16
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Xu X, Hirata H, Shiraki M, Kamohara A, Nishioka K, Miyamoto H, Kukita T, Kukita A. Prostate transmembrane protein androgen induced 1 is induced by activation of osteoclasts and regulates bone resorption. FASEB J 2018; 33:4365-4375. [PMID: 30557043 DOI: 10.1096/fj.201801573r] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Osteoclasts derived from hematopoietic cells are activated on bone surface. To resorb bone, osteoclasts release acid and lysosome acid hydrolase via membrane transport. Prostate transmembrane protein androgen induced 1 (Pmepa1) is a type I transmembrane protein that regulates proliferation, migration, and metastasis of cancer cells. Because recent reports showed that Pmepa1 is involved in membrane transport in cancer cells, we investigated the role of Pmepa1 in osteoclast function. Pmepa1 expression was barely detected in osteoclasts formed on plastic surfaces in vitro, but was markedly increased in activated osteoclasts formed on calcified matrix. Inhibitors of bone resorption, such as alendronate, bafilomycin A1, and the PI3K inhibitor LY294002, suppressed the expression of Pmepa1 in osteoclasts. Knockdown of Pmepa1 expression impaired bone resorption activity and inhibited formation of a ring-like, actin-rich podosome belt that is essential for osteoclast function. Pmepa1 protein localized to lysosomes in osteoclasts. In addition, in sites of bone destruction observed in rats with adjuvant-induced arthritis, a marked high level of Pmepa1 expression was associated with the osteoclasts' resorbing bone. Our results suggest that Pmepa1 is a critical regulator of bone resorption and is a promising marker for activated osteoclasts and a potential therapeutic target in pathologic bone destruction.-Xu, X., Hirata, H., Shiraki, M., Kamohara, A., Nishioka, K., Miyamoto, H., Kukita, T., Kukita, A. Prostate transmembrane protein androgen induced 1 is induced by activation of osteoclasts and regulates bone resorption.
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Affiliation(s)
- Xianghe Xu
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan.,Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan; and
| | - Hirohito Hirata
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Makoto Shiraki
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Asana Kamohara
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Kenichi Nishioka
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences (IMS), Yokohama City, Japan
| | - Hiroshi Miyamoto
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka, Japan; and
| | - Akiko Kukita
- Department of Pathology and Microbiology, Faculty of Medicine, Saga University, Saga, Japan
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17
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Tanaka Y, Sonoda S, Yamaza H, Murata S, Nishida K, Hama S, Kyumoto-Nakamura Y, Uehara N, Nonaka K, Kukita T, Yamaza T. Suppression of AKT-mTOR signal pathway enhances osteogenic/dentinogenic capacity of stem cells from apical papilla. Stem Cell Res Ther 2018; 9:334. [PMID: 30486861 PMCID: PMC6264601 DOI: 10.1186/s13287-018-1077-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 10/19/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Stem cells from apical papilla (SCAP) are a subpopulation of mesenchymal stem cells (MSCs) isolated from the apical papilla of the developing tooth root apex of human teeth. Because of their osteogenic/dentinogenic capacity, SCAP are considered as a source for bone and dentin regeneration. However, little is understood about the molecular mechanism of osteogenic/dentinogenic differentiation of SCAP. Phosphoinositide 3 kinase (PI3K)-AKT-mammalian target of rapamycin (mTOR) signal pathway participates in regulating the differentiation of various cell types, such as MSCs. In this study, we examined the role of the PI3K-AKT-mTOR signal pathway in the osteogenic/dentinogenic differentiation of SCAP. Moreover, we challenge to fabricate scaffold-free SCAP-based spheroidal calcified constructs. METHODS SCAP were pretreated with or without small interfering RNA for AKT (AKT siRNA), PI3K inhibitor LY294402, and mTOR inhibitor rapamycin and were cultured under osteogenic/dentinogenic differentiation to examine in vitro and in vivo calcified tissue formation. Moreover, SCAP-based cell aggregates were pretreated with or without LY294402 and rapamycin. The cell aggregates were cultured under osteogenic/dentinogenic condition and were analyzed the calcification of the aggregates. RESULTS Pretreatment with AKT siRNA, LY294402, and rapamycin enhances the in vitro and in vivo calcified tissue-forming capacity of SCAP. SCAP were fabricated as scaffold-free spheroids and were induced into forming calcified 3D constructs. The calcified density of the spheroidal constructs was enhanced when the spheroids were pretreated with LY294402 and rapamycin. CONCLUSIONS Our findings indicate that the suppression of PI3K-AKT-mTOR signal pathway plays a role in not only enhancing the in vivo and in vitro osteogenic/dentinogenic differentiation of SCAP, but also promoting the calcification of scaffold-free SCAP-based calcified constructs. These findings suggest that a suppressive regulation of PI3K-AKT-mTOR signal pathway is a novel approach for SCAP-based bone and dentin regeneration.
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Affiliation(s)
- Yosuke Tanaka
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Soichiro Sonoda
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Haruyoshi Yamaza
- Division of Oral Health, Department of Pediatric Dentistry, Growth & Development, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Sara Murata
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kento Nishida
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Kyushu University School of Dentistry, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Shion Hama
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.,Kyushu University School of Dentistry, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yukari Kyumoto-Nakamura
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Norihisa Uehara
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazuaki Nonaka
- Division of Oral Health, Department of Pediatric Dentistry, Growth & Development, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Toshio Kukita
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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18
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Yamaza H, Sonoda S, Nonaka K, Kukita T, Yamaza T. Pamidronate decreases bilirubin-impaired cell death and improves dentinogenic dysfunction of stem cells from human deciduous teeth. Stem Cell Res Ther 2018; 9:303. [PMID: 30409185 PMCID: PMC6225573 DOI: 10.1186/s13287-018-1042-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 09/25/2018] [Accepted: 10/10/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hyperbilirubinemia that occurs in pediatric liver diseases such as biliary atresia can result in the development of not only jaundice in the brain, eyes, and skin, but also tooth abnormalities including green pigmentation and dentin hypoplasia in the developing teeth. However, hyperbilirubinemia-induced tooth impairments remain after liver transplantation. No effective dental management to prevent hyperbilirubinemia-induced tooth impairments has been established. METHODS In this study, we focused on pamidronate, which is used to treat pediatric osteopenia, and investigated its effects on hyperbilirubinemia-induced tooth impairments. We cultured stem cells from human exfoliated deciduous teeth (SHED) under high and low concentrations of unconjugated bilirubin in the presence or absence of pamidronate. We then analyzed the effects of pamidronate on the cell death, associated signal pathways, and dentinogenic function in SHED. RESULTS We demonstrated that a high concentration of unconjugated bilirubin induced cell death in SHED via the mitochondrial pathway, and this was associated with the suppression of AKT and extracellular signal-related kinase 1 and 2 (ERK1/2) signal pathways and activation of the nuclear factor kappa B (NF-κB) signal pathway. The high concentration of unconjugated bilirubin impaired the in vitro and in vivo dentinogenic capacity of SHED, but not the low concentration. We then demonstrated that pamidronate decreased the bilirubin-induced cell death in SHED via the altered AKT, ERK1/2, and NF-κB signal pathways and recovered the bilirubin-impaired dentinogenic function of SHED. CONCLUSIONS Our findings suggest that pamidronate may prevent tooth abnormalities in pediatric patients with hyperbilirubinemia.
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Affiliation(s)
- Haruyoshi Yamaza
- Department of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Soichiro Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazuaki Nonaka
- Department of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Kyushu University Graduate School of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
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19
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Yamaza H, Tomoda E, Sonoda S, Nonaka K, Kukita T, Yamaza T. Bilirubin reversibly affects cell death and odontogenic capacity in stem cells from human exfoliated deciduous teeth. Oral Dis 2018; 24:809-819. [PMID: 29316063 DOI: 10.1111/odi.12827] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 12/14/2017] [Accepted: 12/21/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Hyperbilirubinemia in patients with biliary atresia causes deciduous tooth injuries such as green pigmentation and dentin hypoplasia. In patients with biliary atresia who received liver transplantation, tooth structure appears to be recovered radiographically. Nevertheless, little is known about cellular mechanisms underlying bilirubin-induced damage and suppression of deciduous tooth formation. In this study, we examined the effects of bilirubin in stem cells from human exfoliated deciduous teeth (SHED) in vitro. MATERIALS AND METHODS SHED were cultured under exposure to excess of bilirubin and then interruption of bilirubin stimulation. RESULTS Bilirubin induced cell death and inhibited the odontogenic capacity of SHED by suppressing AKT and extracellular signal-regulated kinase 1 and 2 (ERK1/2) pathways and enhancing nuclear factor kappa B p65 (NF-κB p65) pathway. The interruption of bilirubin stimulation reduced cell death and recovered the inhibited odontogenic capacity of bilirubin-damaged SHED. The bilirubin interruption also normalized the impaired AKT, ERK1/2, and NF-κB p65 signaling pathways. CONCLUSION These findings suggest that tooth hypodontia in patients with hyperbilirubinemia might be due to bilirubin-induced cell death and dentinogenic dysfunction of odontogenic stem cells via AKT, ERK1/2, and NF-κB pathways and also suggested that bilirubin-induced impairments in odontogenic stem cells were reversible when bilirubin stimulation is interrupted.
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Affiliation(s)
- H Yamaza
- Department of Pediatric Dentistry, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - E Tomoda
- Department of Pediatric Dentistry, Kyushu University Graduate School of Dental Science, Fukuoka, Japan.,Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - S Sonoda
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan.,Research fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - K Nonaka
- Department of Pediatric Dentistry, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - T Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
| | - T Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Fukuoka, Japan
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20
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Shiratori T, Kyumoto-Nakamura Y, Kukita A, Uehara N, Zhang J, Koda K, Kamiya M, Badawy T, Tomoda E, Xu X, Yamaza T, Urano Y, Koyano K, Kukita T. IL-1β Induces Pathologically Activated Osteoclasts Bearing Extremely High Levels of Resorbing Activity: A Possible Pathological Subpopulation of Osteoclasts, Accompanied by Suppressed Expression of Kindlin-3 and Talin-1. J Immunol 2018; 200:218-228. [PMID: 29141864 DOI: 10.4049/jimmunol.1602035] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 10/12/2017] [Indexed: 12/31/2022]
Abstract
As osteoclasts have the central roles in normal bone remodeling, it is ideal to regulate only the osteoclasts performing pathological bone destruction without affecting normal osteoclasts. Based on a hypothesis that pathological osteoclasts form under the pathological microenvironment of the bone tissues, we here set up optimum culture conditions to examine the entity of pathologically activated osteoclasts (PAOCs). Through searching various inflammatory cytokines and their combinations, we found the highest resorbing activity of osteoclasts when osteoclasts were formed in the presence of M-CSF, receptor activator of NF-κB ligand, and IL-1β. We have postulated that these osteoclasts are PAOCs. Analysis using confocal laser microscopy revealed that PAOCs showed extremely high proton secretion detected by the acid-sensitive fluorescence probe Rh-PM and bone resorption activity compared with normal osteoclasts. PAOCs showed unique morphology bearing high thickness and high motility with motile cellular processes in comparison with normal osteoclasts. We further examined the expression of Kindlin-3 and Talin-1, essential molecules for activating integrin β-chains. Although normal osteoclasts express high levels of Kindlin-3 and Talin-1, expression of these molecules was markedly suppressed in PAOCs, suggesting the abnormality in the adhesion property. When whole membrane surface of mature osteoclasts was biotinylated and analyzed, the IL-1β-induced cell surface protein was detected. PAOCs could form a subpopulation of osteoclasts possibly different from normal osteoclasts. PAOC-specific molecules could be an ideal target for regulating pathological bone destruction.
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Affiliation(s)
- Takuma Shiratori
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
- Department of Implant Rehabilitation Dentistry, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Nabeshima, Saga 849-8501, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Jingqi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Kinuko Koda
- Department of Chemical Biology and Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Mako Kamiya
- Department of Chemical Biology and Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Tamer Badawy
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Erika Tomoda
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
- Department of Pediatric Dentistry and Special Need Dentistry, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan; and
| | - Xianghe Xu
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
- Department of Microbiology, Faculty of Medicine, Saga University, Nabeshima, Saga 849-8501, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Yasuteru Urano
- Department of Chemical Biology and Molecular Imaging, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
- Department of Chemistry and Biology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Kiyoshi Koyano
- Department of Implant Rehabilitation Dentistry, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Maidashi, Fukuoka 812-8582, Japan;
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21
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Uehara N, Kukita A, Kyumoto-Nakamura Y, Yamaza T, Yasuda H, Kukita T. Osteoblast-derived Laminin-332 is a novel negative regulator of osteoclastogenesis in bone microenvironments. J Transl Med 2017; 97:1235-1244. [PMID: 28581488 DOI: 10.1038/labinvest.2017.55] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 04/06/2017] [Accepted: 04/06/2017] [Indexed: 01/02/2023] Open
Abstract
Laminin-332 (Lm-332), a major basement membrane protein, has been shown to provide a niche for some stem cells. Here, we found that Lm-332 was expressed in osteoblasts, and is implicated in the regulation of osteoclast differentiation. Immunofluorescence analysis of laminin-β3, a unique component of Lm-332, indicated specific expression of laminin-β3 in osteoblast-like cells localized on bone surface. RT-PCR analysis confirmed that α3, β3, and γ2 chains of Lm-332 were all expressed in primary osteoblasts prepared from mouse calvaria. Lm-332 markedly inhibited osteoclastogenesis induced by receptor activator of nuclear factor kappa B (NF-κB) ligand (RANKL) when bone marrow-derived macrophages (BMMs) were cultured on Lm-332-coated plates. Lm-332 also blocked RANKL-induced activation of mitogen-activated protein kinases (MAPKs) (ERK, JNK, and p38) and expression of NFATc1, c-Fos, and c-Jun. Lm-332 suppressed osteoclast differentiation while retaining macrophage phenotypes, including nonspecific esterase activity and gene expression of lysozyme and EGF-like module-containing mucin-like hormone receptor-like 1 (Emr1). Furthermore, the treatment of primary osteoblasts with osteoclastogenic factors dramatically suppressed expression of Lm-332. These findings suggest that Lm-332 produced by osteoblasts in bone tissues has a pivotal role in controlling normal bone remodeling through suppressing osteoclastogenesis.
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Affiliation(s)
- Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yukari Kyumoto-Nakamura
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hisataka Yasuda
- Bioindustry Division, Oriental Yeast Company, Limited, Tokyo, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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22
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Funakubo N, Xu X, Kukita T, Nakamura S, Miyamoto H, Kukita A. Pmepa1 induced by RANKL-p38 MAPK pathway has a novel role in osteoclastogenesis. J Cell Physiol 2017; 233:3105-3118. [DOI: 10.1002/jcp.26147] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/10/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Noboru Funakubo
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
- Faculty of Dentistry; Oral & Maxillofacial Oncology; Kyushu University; Maidashi Fukuoka Japan
| | - Xianghe Xu
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
| | - Toshio Kukita
- Faculty of Dentistry; Department of Molecular Cell Biology & Oral Anatomy; Kyushu University; Maidashi Fukuoka Japan
| | - Seiji Nakamura
- Faculty of Dentistry; Oral & Maxillofacial Oncology; Kyushu University; Maidashi Fukuoka Japan
| | - Hiroshi Miyamoto
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
| | - Akiko Kukita
- Faculty of Medicine; Department of Pathology and Microbiology; Saga University; Saga Japan
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23
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Li YJ, Kukita A, Kyumoto-Nakamura Y, Kukita T. Extremely High Expression of Antisense RNA for Wilms' Tumor 1 in Active Osteoclasts: Suppression of Wilms' Tumor 1 Protein Expression during Osteoclastogenesis. Am J Pathol 2016; 186:2317-25. [PMID: 27393793 DOI: 10.1016/j.ajpath.2016.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 04/21/2016] [Accepted: 05/09/2016] [Indexed: 01/08/2023]
Abstract
Wilms' tumor 1 (WT1), a zinc-finger transcription regulator of the early growth response family, identified as the product of a tumor suppressor gene of Wilms' tumors, bears potential ability to induce macrophage differentiation in blood cell differentiation. Herein, we examined the involvement of WT1 in the regulation of osteoclastogenesis. We detected a high level of WT1 protein expression in osteoclast precursors; however, WT1 expression was markedly suppressed during osteoclastogenesis. We examined expression of WT1 transcripts in bone tissue by RNA in situ hybridization. We found a high level of antisense transcripts in osteoclasts actively resorbing bone in mandible of newborn rats. Expression of antisense WT1 RNA in mandible was also confirmed by Northern blot analysis and strand-specific RT-PCR. Overexpression of antisense WT1 RNA in RAW-D cells, an osteoclast precursor cell line, resulted in a marked enhancement of osteoclastogenesis, suggesting that antisense WT1 RNA functions to suppress expression of WT1 protein in osteoclastogenesis. High level expression of antisense WT1 RNA may contribute to commitment to osteoclastogenesis, and may allow osteoclasts to maintain or stabilize their differentiation state.
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Affiliation(s)
- Yin-Ji Li
- Division of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yukari Kyumoto-Nakamura
- Division of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Division of Molecular Cell Biology and Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
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24
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Mine Y, Shuto T, Nikawa H, Kawai T, Ohara M, Kawahara K, Ohta K, Kukita T, Terada Y, Makihira S. Inhibition of RANKL-dependent cellular fusion in pre-osteoclasts by amiloride and a NHE10-specific monoclonal antibody. Cell Biol Int 2015; 39:696-709. [PMID: 25612314 DOI: 10.1002/cbin.10447] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Accepted: 01/09/2015] [Indexed: 11/05/2022]
Abstract
The functions of Na(+) /H(+) exchangers (NHEs) during osteoclastic differentiation were investigated using the NHE inhibitor amiloride and a monoclonal antibody (MAb). Compared with sRANKL-stimulated control cells, amiloride decreased the number of large TRAP-positive osteoclast cells (OCs) with ≥10 nuclei and increased the number of small TRAP-positive OCs with ≤10 nuclei during sRANKL-dependent osteoclastic differentiation of RAW264.7 cells. NHE10 mRNA expression and OC differentiation markers were increased by sRANKL stimulation in dose- and time-dependent manners. NHEs 1-9 mRNA expression was not increased by sRANKL stimulation. Similar to amiloride, a rat anti-mouse NHE10 MAb (clone 6B11) decreased the number of large TRAP-positive OCs, but increased the number of small TRAP-positive OCs. These findings suggested that inhibition of NHEs by amiloride or an anti-NHE10 MAb prevented sRANKL-promoted cellular fusion. The anti-NHE10 MAb has the potential for use as an effective inhibitor of bone resorption for targeted bone disease therapy.
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Affiliation(s)
- Yuichi Mine
- Department of Oral Biology and Engineering, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan
| | - Takahiro Shuto
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroki Nikawa
- Department of Oral Biology and Engineering, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan
| | - Toshihisa Kawai
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 1st St., Cambridge, MA, 02142, USA.,Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, 188 Longwood Ave., Boston, MA, 02115,, USA
| | - Masaru Ohara
- Hiroshima University Hospital, Dental Clinic, 1-1-2 Kagamiyama, Higashihiroshima, 739-0046, Japan
| | - Kazuko Kawahara
- Department of Oral Biology and Engineering, Integrated Health Sciences, Institute of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku, Hiroshima, 734-8553, Japan
| | - Kouji Ohta
- Department of Immunology and Infectious Diseases, The Forsyth Institute, 245 1st St., Cambridge, MA, 02142, USA.,Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, 188 Longwood Ave., Boston, MA, 02115,, USA
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yoshihiro Terada
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Seicho Makihira
- Section of Fixed Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
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25
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Abstract
Membrane tunneling nanotubes (TNTs) are unique intercellular structures, which enable rapid transport of various materials and rapid communication between cells present in a long distance. During osteoclastogenesis, mononuclear osteoclast precursors form abundant TNTs in prior to cell-cell fusion. Here we introduce a protocol for detecting TNTs during osteoclastogenesis by use of live cell imaging utilizing a confocal laser microscopy. We also demonstrate a standard protocol for observation of TNTs by scanning electron microscope.
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Affiliation(s)
- Toshio Kukita
- Division of Oral Biological Sciences, Department of Molecular Cell Biology & Oral Anatomy, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Fukuoka, 812-8582, Japan,
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26
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Moriyama K, Kukita A, Li YJ, Uehara N, Zhang JQ, Takahashi I, Kukita T. Regulation of osteoclastogenesis through Tim-3: possible involvement of the Tim-3/galectin-9 system in the modulation of inflammatory bone destruction. J Transl Med 2014; 94:1200-11. [PMID: 25264706 DOI: 10.1038/labinvest.2014.107] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 05/09/2014] [Accepted: 05/19/2014] [Indexed: 11/09/2022] Open
Abstract
Galectins are a unique family of lectins bearing one or two carbohydrate recognition domains (CRDs) that have the ability to bind molecules with β-galactoside-containing carbohydrates. It has been shown that galectins regulate not only cell growth and differentiation but also immune responses, as well as inflammation. Galectin-9, a tandem repeat type of galectin, was originally identified as a chemotactic factor for eosinophils, and is also involved in the regulatory process of inflammation. Here, we examined the involvement of galectin-9 and its receptor, T-cell immunoglobulin- and mucin-domain-containing molecule 3 (Tim-3), in the control of osteoclastogenesis and inflammatory bone destruction. Expression of Tim-3 was detected in osteoclasts and its mononuclear precursors in vivo and in vitro. Galectin-9 markedly inhibited osteoclastogenesis as evaluated in osteoclast precursor cell line RAW-D cells and primary bone marrow cells of mice and rats. The inhibitory effects of galectin-9 on osteoclastogenesis was negated by the addition of β-lactose, an antagonist for galectin binding, suggesting that the inhibitory effect of galectin-9 was mediated through CRD. When galectin-9 was injected into rats with adjuvant-induced arthritis, marked suppression of bone destruction was observed. Inflammatory bone destruction could be efficiently ameliorated by controlling the Tim-3/galectin-9 system in rheumatoid arthritis.
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Affiliation(s)
- Kanako Moriyama
- 1] Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan [2] Department of Orthodontics, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Yin-Ji Li
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Jing-Qi Zhang
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Ichiro Takahashi
- Department of Orthodontics, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
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27
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Takano T, Li YJ, Kukita A, Yamaza T, Ayukawa Y, Moriyama K, Uehara N, Nomiyama H, Koyano K, Kukita T. Mesenchymal stem cells markedly suppress inflammatory bone destruction in rats with adjuvant-induced arthritis. J Transl Med 2014; 94:286-96. [PMID: 24395111 DOI: 10.1038/labinvest.2013.152] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 09/13/2013] [Accepted: 09/29/2013] [Indexed: 11/09/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have potential to differentiate into multiple cell lineages. Recently, it was shown that MSCs also have anti-inflammatory and immunomodulatory functions. In this report, we investigated the regulatory function of MSCs in the development of inflammatory bone destruction in rats with adjuvant-induced arthritis (AA rats). MSCs were isolated from rat bone marrow tissues, expanded in the presence of basic FGF, and intraperitoneally injected into AA rats. MSC administration significantly suppressed inflammatory parameters: swelling score, swelling width, and thickness of hind paw. Radiographic evaluation indicated that MSC significantly suppressed bone destruction. Histological analysis showed that administration of MSCs markedly suppressed osteoclastogenesis in AA rats. To further delineate their effects on osteoclastogenesis, MSCs were added to in vitro bone marrow cultures undergoing osteoclastogenesis. MSCs significantly suppressed osteoclastogenesis in this system. Chemokine receptor expression in MSCs was assessed by RT-PCR, and a chemotactic assay was performed using a transwell culture system. MSCs showed significant chemotaxis to MIP-1α (CCL3) and SDF-1α (CXCL12), chemokines preferentially expressed in the area of inflammatory bone destruction. Furthermore, MSCs expressed IL-10 and osteoprotegerin, cytokines that suppress osteoclastogenesis. These data suggest that recruitment of MSC to the area of bone destruction in AA rats could suppress inflammatory bone destruction and raise the possibility that MSCs may have potential for the treatment of inflammatory bone destruction in arthritis.
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Affiliation(s)
- Toshio Takano
- 1] Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan [2] Department of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yin-Ji Li
- Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan
| | - Takayoshi Yamaza
- Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Yasunori Ayukawa
- Department of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Kanako Moriyama
- Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Norihisa Uehara
- Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hisayuki Nomiyama
- Department of Molecular Enzymology, Kumamoto University, Graduate School of Medical Science, Kumamoto, Japan
| | - Kiyoshi Koyano
- Department of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology & Oral Anatomy, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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28
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Takiguchi S, Korenaga N, Inoue K, Sugi E, Kataoka Y, Matsusue K, Futagami K, Li YJ, Kukita T, Teramoto N, Iguchi H. Involvement of CXCL14 in osteolytic bone metastasis from lung cancer. Int J Oncol 2014; 44:1316-24. [PMID: 24534874 DOI: 10.3892/ijo.2014.2293] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 01/23/2014] [Indexed: 11/06/2022] Open
Abstract
To investigate the molecular mechanisms of lung cancer-induced bone metastasis, we established a bone-seeking subclone (HARA-B4) from a human squamous lung cancer cell line (HARA) using an in vivo selection method. We compared comprehensive gene expression profiles between HARA and HARA-B4, and identified the critical factors for the formation of bone metastasis using in vitro and in vivo assays. The number of bone metastatic colonies in the hind legs was significantly higher in HARA-B4-inoculated mice than in HARA-inoculated mice at 4 weeks after inoculation. In addition, visceral (adrenal) metastases were not found in HARA-B4-inoculated mice at autopsy, suggesting an increase in cancer cell tropism to bone in HARA-B4. Based on a comprehensive gene expression analysis, the expression level of CXC chemokine ligand 14 (CXCL14) was 5-fold greater in HARA-B4 than in HARA. Results of a soft agar colony formation assay showed that anchorage-independent growth ability was 4.5-fold higher with HARA-B4 than with HARA. The murine pre-osteoblast cell line MC3T3-E1 and the pre-osteoclast/macrophage cell line RAW264.7 migrated faster toward cultured HARA-B4 cells than toward HARA cells in a transwell cell migration assay. Interestingly, CXCL14 was shown to be involved in all events (enhancement of cancer cell tropism to the bone, anchorage-independent growth and/or recruitment of bone marrow cells) based on siRNA experiments in HARA-B4 cells. Furthermore, in clinical specimens of lung cancer-induced bone metastasis, expression of CXCL14 was observed in the tumor cells infiltrated in bone marrow in all specimens examined. CXCL14 was able to promote bone metastasis through enhancement of cancer cell tropism to the bone and/or recruitment of bone marrow cells around metastatic cancer cells.
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Affiliation(s)
- Soichi Takiguchi
- Clinical Research Institute, National Hospital Organization Kyushu Cancer Center, Fukuoka 811-1395, Japan
| | - Natsuki Korenaga
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka 814-0180, Japan
| | - Kazuko Inoue
- Clinical Research Institute, National Hospital Organization Kyushu Cancer Center, Fukuoka 811-1395, Japan
| | - Erika Sugi
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka 814-0180, Japan
| | - Yasufumi Kataoka
- Department of Pharmaceutical Care and Health Sciences, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka 814-0180, Japan
| | - Kimihiko Matsusue
- Department of Hygiene Chemistry, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka 814-0180, Japan
| | - Koujiro Futagami
- Department of Pharmacy, Fukuoka University Hospital, Fukuoka 814-0180, Japan
| | - Yin-Ji Li
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
| | - Toshio Kukita
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
| | - Norihiro Teramoto
- Division of Pathology, National Hospital Organization Shikoku Cancer Center, Matsuyama 791-0280, Japan
| | - Haruo Iguchi
- Clinical Research Institute, National Hospital Organization Shikoku Cancer Center, Matsuyama 791-0280, Japan
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29
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Abstract
It is known that there are close relationships between bone destruction and tumor growth in bone metastasis. RANKL is a central factor in bone metastasis, inducing osteoclastogenesis mediated by its receptor RANK. Recent reports demonstrate that RANKL has important roles in organogenesis stimulating proliferation and differentiation of epithelial and stroma cells. RANKL is induced not only by cytokines and hormones but also by UV-irradiation, inflammation and carcinogens. Expression of RANK and RANKL is found in several human cancer cell lines, and RANK signaling stimulates proliferation, migration and epithelial–mesenchymal transition of cancer cells, which may be involved in metastasis via an autocrine/paracrine mechanism. RANKL regulates the number of Tregs that produce RANKL, which may affect cancer metastasis. In this review we discuss the multifunctional roles of RANKL/RANK in osteoclastogenesis, organogenesis, and the metastasis and tumorigenesis of cancer cells.
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Affiliation(s)
- Akiko Kukita
- Department of Microbiology, Medicine, Saga University, 5-1-1, Nabeshima, Saga, 849-8501, Japan
| | - Toshio Kukita
- Molecular Cell Biology & Oral Anatomy, Kyushu University, Maidashi, Fukuoka, Japan
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30
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Makino Y, Yamaza H, Akiyama K, Ma L, Hoshino Y, Nonaka K, Terada Y, Kukita T, Shi S, Yamaza T. Immune therapeutic potential of stem cells from human supernumerary teeth. J Dent Res 2013; 92:609-15. [PMID: 23697344 DOI: 10.1177/0022034513490732] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Discoveries of immunomodulatory functions in mesenchymal stem cells (MSCs) have suggested that they might have therapeutic utility in treating immune diseases. Recently, a novel MSC population was identified from dental pulp of human supernumerary teeth, and its multipotency characterized. Herein, we first examined the in vitro and in vivo immunomodulatory functions of human supernumerary tooth-derived stem cells (SNTSCs). SNTSCs suppressed not only the viability of T-cells, but also the differentiation of interleukin 17 (IL-17)-secreting helper T (Th17)-cells in in vitro co-culture experiments. In addition, systemic SNTSC transplantation ameliorated the shortened lifespan and elevated serum autoantibodies and nephritis-like renal dysfunction in systemic lupus erythematosus (SLE) model MRL/lpr mice. SNTSC transplantation also suppressed in vivo increased levels of peripheral Th17 cells and IL-17, as well as ex vivo differentiation of Th17 cells in MRL/lpr mice. Adoptive transfer experiments demonstrated that SNTSC-transplanted MRL/lpr mouse-derived T-cell-adopted immunocompromised mice showed a longer lifespan in comparison with non-transplanted MRL/lpr mouse-derived T-cell-adopted immunocompromised mice, indicating that SNTSC transplantation suppresses the hyper-immune condition of MRL/lpr mice through suppressing T-cells. Analysis of these data suggests that SNTSCs are a promising MSC source for cell-based therapy for immune diseases such as SLE.
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Affiliation(s)
- Y Makino
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University Graduate School of Dental Science, Higashi-ku, Fukuoka, Japan
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31
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Takahashi A, Kukita A, Li YJ, Zhang JQ, Nomiyama H, Yamaza T, Ayukawa Y, Koyano K, Kukita T. Tunneling nanotube formation is essential for the regulation of osteoclastogenesis. J Cell Biochem 2013; 114:1238-47. [DOI: 10.1002/jcb.24433] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 10/22/2012] [Indexed: 01/19/2023]
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32
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Teramachi J, Kukita A, Qu P, Wada N, Li YJ, Nakamura S, Kukita T. Adenosine blocks aminopterin-induced suppression of osteoclast differentiation. J Bone Miner Metab 2013; 31:64-70. [PMID: 23111587 DOI: 10.1007/s00774-012-0388-7] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 09/04/2012] [Indexed: 10/27/2022]
Abstract
To search cell surface molecules involved in the regulation of osteoclastogenesis, especially in fusion process, it is one powerful approach to obtain monoclonal antibodies bearing ability to block formation of multinucleated osteoclasts. Ideally, direct bio-assay of hybridoma supernatants is quite convenient to screen monoclonal antibodies of interest from numerous culture wells. However, addition of hybridoma supernatant containing hypoxanthine-aminopterin-thymidine (HAT), components of the selection medium, to whole bone marrow cultures strikingly suppressed osteoclastogenesis. Here we clarified aminopterin is the responsible component in HAT medium to inhibit osteoclastogenesis. Methotrexate (MTX), mono-methylated aminopterin, showed similar suppressive effect on osteoclastogenesis. When bone marrow cells were cultured in the presence of all nucleosides, aminopterin and MTX-induced suppression of osteoclastogenesis was abrogated. Among four nucleosides only adenosine canceled aminopterin-induced suppression of osteoclastogenesis. Direct bio-assay of hybridoma supernatant containing HAT selection medium is now available to screen monoclonal antibodies if adenosine-containing culture medium was utilized for evaluating osteoclastogenesis.
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Affiliation(s)
- Junpei Teramachi
- Department of Molecular Cell Biology and Oral Anatomy, Faculty of Dental Sciences, Kyushu University, 3-1-1 Maidashi, Fukuoka, 812-8582, Japan
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33
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Li YJ, Kukita A, Watanabe T, Takano T, Qu P, Sanematsu K, Ninomiya Y, Kukita T. Nordihydroguaiaretic acid inhibition of NFATc1 suppresses osteoclastogenesis and arthritis bone destruction in rats. J Transl Med 2012; 92:1777-87. [PMID: 23044922 DOI: 10.1038/labinvest.2012.134] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Nordihydroguaiaretic acid (NDGA) is known to have prominent anticancer activity against several cancers, and is also known to be an inhibitor of 5-lipoxygenase (5-LO). In this study, we investigated the regulatory function of NDGA on inflammatory bone destruction mediated by osteoclasts. NDGA markedly inhibited receptor activator of nuclear factor-κB (NF-κB) ligand (RANKL)-induced formation of osteoclasts in cultures of murine osteoclast precursor cell line RAW-D cells and primary bone marrow-derived macrophages culture systems. The inhibitory effect of NDGA on osteoclastogenesis did not arise from the inhibition of 5-LO activity. NDGA did not affect MAPKs, such as p38, JNK, and NF-κB, but significantly inhibited the induction of NFATc1, a key transcription factor for osteoclastogenesis. NDGA also suppressed activation of ERK in osteoclast precursors. RANKL-induced calcium oscillation observed in osteoclast precursors was completely diminished by the addition of NDGA. In mature osteoclasts, RANKL-induced nuclear translocation of NFATc1 was clearly inhibited by NDGA treatment. Finally, in vivo studies demonstrated that administration of NDGA significantly reduced severe bone destruction and osteoclast recruitment in the ankle joint of rats with adjuvant-induced arthritis. These results indicate the potential utility of NDGA as a therapeutic agent for ameliorating inflammatory bone destruction in rheumatoid arthritis.
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Affiliation(s)
- Yin-Ji Li
- Division of Oral Biological Sciences, Department of Molecular Cell Biology and Oral Anatomy, Kyushu University, Fukuoka, Japan
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34
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Kukita A, Ichigi Y, Takigawa I, Watanabe T, Kukita T, Miyamoto H. Infection of RANKL-primed RAW-D macrophages with Porphyromonas gingivalis promotes osteoclastogenesis in a TNF-α-independent manner. PLoS One 2012; 7:e38500. [PMID: 22723864 PMCID: PMC3377672 DOI: 10.1371/journal.pone.0038500] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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: 05/08/2012] [Accepted: 05/10/2012] [Indexed: 11/19/2022] Open
Abstract
Infection of macrophages with bacteria induces the production of pro-inflammatory cytokines including TNF-α. TNF-α directly stimulates osteoclast differentiation from bone marrow macrophages in vitro as well as indirectly via osteoblasts. Recently, it was reported that bacterial components such as LPS inhibited RANKL-induced osteoclastogenesis in early stages, but promoted osteoclast differentiation in late stages. However, the contribution to osteoclast differentiation of TNF-α produced by infected macrophages remains unclear. We show here that Porphyromonas gingivalis, one of the major pathogens in periodontitis, directly promotes osteoclastogenesis from RANKL-primed RAW-D (subclone of RAW264) mouse macrophages, and we show that TNF-α is not involved in the stimulatory effect on osteoclastogenesis. P. gingivalis infection of RANKL-primed RAW-D macrophages markedly stimulated osteoclastogenesis in a RANKL-independent manner. In the presence of the TLR4 inhibitor, polymyxin B, infection of RANKL-primed RAW-D cells with P. gingivalis also induced osteoclastogenesis, indicating that TLR4 is not involved. Infection of RAW-D cells with P. gingivalis stimulated the production of TNF-α, whereas the production of TNF-α by similarly infected RANKL-primed RAW-D cells was markedly down-regulated. In addition, infection of RANKL-primed macrophages with P. gingivalis induced osteoclastogenesis in the presence of neutralizing antibody against TNF-α. Inhibitors of NFATc1 and p38MAPK, but not of NF-κB signaling, significantly suppressed P. gingivalis-induced osteoclastogenesis from RANKL-primed macrophages. Moreover, re-treatment of RANKL-primed macrophages with RANKL stimulated osteoclastogenesis in the presence or absence of P. gingivalis infection, whereas re-treatment of RANKL-primed macrophages with TNF-α did not enhance osteoclastogenesis in the presence of live P. gingivalis. Thus, P. gingivalis infection of RANKL-primed macrophages promoted osteoclastogenesis in a TNF-α independent manner, and RANKL but not TNF-α was effective in inducing osteoclastogenesis from RANKL-primed RAW-D cells in the presence of P. gingivalis.
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Affiliation(s)
- Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan.
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35
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Sandra F, Kukita T, Tang QY, Iijima T. Caffeic Acid Inhibits NFkappaB Activation of Osteoclastogenesis Signaling Pathway. Indones Biomed J 2011. [DOI: 10.18585/inabj.v3i3.153] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND: Caffeic acid (3,4-dihydroxycinnamic acids) is involved in various green plants. Based on our previous report, a major component of sweet potato extracts, possibly caffeic acid, was shown as a promising inhibitor of osteoclastogenesis. However, the effect of caffeic acid in inhibiting osteoclastogenesis needs to be confirmed. The underlying mechanism needs to be disclosed as well.METHODS: Caffeic acid in various concentrations was added to in vitro osteoclastogenesis of receptor activator nuclear factor kB ligand (RANKL)-tumor necrosis factor alpha (TNF-α)-macrophage colony stimulating factor (M-CSF)-induced bone marrow-derived monocyte/macrophage precursor cells (BMMs) and RANKL-TNF-α-induced RAW264 cells D-Clone (RAW-D cells). Tartrate resistant acid phosphatase (TRAP) staining was performed and TRAP-positive polynucleated cells (PNCs) were counted. For apoptosis analysis, caffeic acid-treated BMMs, RAW-D cells and osteoclast-like PNCs were subjected to Sub-G1 Apoptosis and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assays. To measure NFkB activity, RAW-D cells were transfected with pNFkB-TA-Luc and subjected to Dual Luciferase Reporter Assay System.RESULTS: Caffeic acid inhibited osteoclastogenesis of RANKL-TNF-α-M-CSF-induced BMMs as well as RANKL-TNF-α-induced RAW-D cells in a dose dependent manner. Caffeic acid did not induce apoptosis in BMMs, RAW-D cells and osteoclast-like PNCs. RANKL-TNF-α-induced NFkB activity in RAW-D was diminished by caffeic acid in a dose dependent manner. Significant NFkB activity inhibtion was observed starting from 1 µg/mL caffeic acid. CONCLUSIONS: Caffeic acid could be a potent osteoclastogenesis inhibitor through inhibition of NFkB activity. Our present study should be further followed up to disclose caffeic acid's possible overlying signaling pathways in inhibiting osteoclastogenesis.KEYWORDS: caffeic acid, osteoclastogenesis, NFkB, RANKL, TNF-α
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36
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Kukita A, Kukita T, Nagata K, Teramachi J, Li YJ, Yoshida H, Miyamoto H, Gay S, Pessler F, Shobuike T. The transcription factor FBI-1/OCZF/LRF is expressed in osteoclasts and regulates RANKL-induced osteoclast formation in vitro and in vivo. ACTA ACUST UNITED AC 2011; 63:2744-54. [PMID: 21590684 DOI: 10.1002/art.30455] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Since transcription factors expressed in osteoclasts are possible targets for regulation of bone destruction in bone disorders, we investigated the expression of the transcription factor FBI-1/OCZF/LRF (in humans, factor that binds to inducer of short transcripts of human immunodeficiency virus type 1; in rats, osteoclast-derived zinc finger; in mice, leukemia/lymphoma-related factor) in patients with rheumatoid arthritis (RA), and assessed its role in osteoclastogenesis in vivo. METHODS Expression of FBI-1/OCZF was investigated in subchondral osteoclasts in human RA and in rat adjuvant-induced arthritis (AIA) using immunostaining and in situ hybridization, respectively. Transgenic mice overexpressing OCZF (OCZF-Tg) under the control of the cathepsin K promoter were generated, and bone mineral density and bone histomorphometric features were determined by peripheral quantitative computed tomography, calcein double-labeling, and specific staining for osteoclasts and osteoblasts. LRF/OCZF expression and the consequence of LRF inhibition were assessed in vitro with RANKL-induced osteoclast differentiation. RESULTS FBI-1/OCZF was detected in the nuclei of osteoclasts in rat AIA and human RA. RANKL increased the levels of LRF messenger RNA and nuclear-localized LRF protein in primary macrophages. In OCZF-Tg mice, bone volume was significantly decreased, the number of osteoclasts, but not osteoblasts, was increased in long bones, and osteoclast survival was promoted. Conversely, inhibition of LRF expression suppressed the formation of osteoclasts from macrophages in vitro. CONCLUSION FBI-1/OCZF/LRF regulates osteoclast formation and apoptosis in vivo, and may become a useful marker and target in treating disorders leading to reduced bone density, including chronic arthritis.
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Affiliation(s)
- Akiko Kukita
- Department of Microbiology, Faculty of Medicine, Saga University, Saga, Japan.
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37
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Teramachi J, Kukita A, Li YJ, Ushijima Y, Ohkuma H, Wada N, Watanabe T, Nakamura S, Kukita T. Adenosine abolishes MTX-induced suppression of osteoclastogenesis and inflammatory bone destruction in adjuvant-induced arthritis. J Transl Med 2011; 91:719-31. [PMID: 21339747 DOI: 10.1038/labinvest.2011.9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Methotrexate (MTX) is widely utilized for the treatment of patients with rheumatoid arthritis (RA); however, recent observation of the MTX-resistant patients proposed some difficulty in MTX-dependent therapeutic approach for RA. To access cellular events related to MTX resistance in RA in respect to inflammatory bone destruction, we investigated on an involvement of the potent inflammatory mediator adenosine in the regulation of osteoclastogenesis and inflammatory bone destruction. In rats with adjuvant-induced arthritis (AA rats), MTX efficiently suppressed bone destruction when it was administrated within 3 days after adjuvant injection, while it could not suppress inflammatory bone destruction if MTX was injected at the time of onset of inflammation (at day 10 after adjuvant injection). Time-course change in the level of plasma adenosine of AA rats was estimated by use of high-performance liquid chromatography and elucidated that adenosine level was markedly elevated till 10 days after adjuvant injection. In vitro bone marrow culture system for evaluating osteoclastogenesis, MTX markedly suppressed osteoclastogenesis in a stromal cell-dependent manner. This MTX-induced suppression of osteoclastogenesis was abrogated by the addition of adenosine. MTX suppressed the expression of mRNA for the receptor activator NF-κB ligand (RANKL), but it did not suppress the expression of osteoprotegerin (OPG). The addition of MTX and adenosine together markedly suppressed the level of OPG expression. Abolishment of MTX action by adenosine was significantly blocked by MRS1754, a highly selective antagonist for the A(2b) adenosine receptor (A(2b)AR), but not by caffeine, an antagonist for A₁, A(2a), A₃ AR (A₁AR, A(2a)AR, and A₃AR), which suggests that adenosine acts through A(2b)AR. Immunohistochemical studies showed abundant expression of A(2b)AR in cells localized in the bone-bone marrow boundary of the distal tibia in AA rats but not in control rats. When adenosine was injected in the ankle joints of MTX-treated AA rats, the suppressive effects of MTX on bone destruction was abolished. The current data therefore suggest that upregulation of adenosine production abolished the suppressive effect of MTX on osteoclastic bone destruction. Involvement of the adenosine-A(2b)AR system may explain MTX resistance in RA.
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Affiliation(s)
- Junpei Teramachi
- Department of Molecular Cell Biology and Oral Anatomy, Kyushu University, Fukuoka, Japan
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38
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Wu Z, Ma HM, Kukita T, Nakanishi Y, Nakanishi H. Phosphatidylserine-containing liposomes inhibit the differentiation of osteoclasts and trabecular bone loss. J Immunol 2010; 184:3191-201. [PMID: 20176740 DOI: 10.4049/jimmunol.0803609] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Liposomes containing phosphatidylserine (PS) are engulfed by phagocytes including macrophages, microglia, and dendritic cells. PS liposomes (PSLs) mimic the effects of apoptotic cells on these phagocytes to induce the secretion of anti-inflammatory molecules and to inhibit the maturation of dendritic cells. However, the effects of PSLs on osteoclasts, which are also differentiated from the common myeloid precursors, remain to be determined. This study investigated the effects of PSLs on the osteoclastogenesis. In the rat bone marrow culture system, osteoclast precursors phagocytosed PSLs to secrete TGF-beta1 and PGE(2), which in turn inhibited osteoclastogenesis through the downregulation of receptor activator for NF-kappaB ligand, receptor activator of NF-kappaB, ICAM-1, and CD44. Consistent with these in vitro observations, i.m. injection of PSLs significantly increased the plasma level of TGF-beta1 and PGE(2) and decreased the expression of receptor activator for NF-kappaB ligand, receptor activator of NF-kappaB, and ICAM-1 in the skeletal tissues of ankle joints of rats with adjuvant arthritis (AA). A quantitative analysis using microcomputed tomography revealed that PSLs as well as TGF-beta1 together with PGE(2) significantly inhibited AA-induced trabecular bone loss. These observations strongly suggest that PSLs generate TGF-beta1 and PGE(2) release, leading to inhibit osteoclastogenesis and AA-induced trabecular bone loss. Because PS is a component of the cell membrane, PSLs therefore can be a potentially effective pharmacological intervention against abnormal bone loss, such as osteoporosis without deleterious side effects.
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Affiliation(s)
- Zhou Wu
- Department of Aging Science and Pharmacology, Faculty of Dental Sciences, Kyushu University, Fukuoka, Japan.
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39
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Ogino Y, Ayukawa Y, Kukita T, Atsuta I, Koyano K. Platelet-rich plasma suppresses osteoclastogenesis by promoting the secretion of osteoprotegerin. J Periodontal Res 2009; 44:217-24. [DOI: 10.1111/j.1600-0765.2008.01109.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Liu J, Shiono J, Shimizu K, Kukita A, Kukita T, Kondo R. Ganoderic acid DM: anti-androgenic osteoclastogenesis inhibitor. Bioorg Med Chem Lett 2009; 19:2154-7. [PMID: 19289282 DOI: 10.1016/j.bmcl.2009.02.119] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2008] [Revised: 02/16/2009] [Accepted: 02/27/2009] [Indexed: 11/17/2022]
Abstract
Prostate cancer is the most common cancer in men in Western countries, with a high incidence of bone metastasis. Ganoderic acid DM, with 5alpha-reductase inhibitory and androgen receptor (AR) binding activity, isolated from the ethanol extracts of Ganoderma lucidum, can inhibit prostate cancer cell growth and block osteoclastogenesis.
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Affiliation(s)
- Jie Liu
- Department of Forest and Forest Products Science, Faculty of Agriculture, Kyushu University, Fukuoka, Japan
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41
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Inoue K, Ohashi T, Kukita T, Watanebe K, Hayashi S, Honjo T, Takesue H. Differential-phase-shift quantum secret sharing. Opt Express 2008; 16:15469-15476. [PMID: 18825184 DOI: 10.1364/oe.16.015469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A quantum secret sharing (QSS) protocol based on a differential-phase-shift scheme is proposed, which quantum mechanically provides a full secret key to one party and partial keys to two other parties. A weak coherent pulse train is utilized instead of individual photons as in conventional schemes. Compared with previous QSS protocols, the present one features a simple setup, is suitable for fiber transmission, and offers the possibility for a high key creation rate. An experiment is also carried out to demonstrate the operation.
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Affiliation(s)
- K Inoue
- Osaka University, 2-1 Yamada-oka, Suita-shi, Osaka, 565-0871, Japan
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42
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Yamaguchi N, Kukita T, Li YJ, Kamio N, Fukumoto S, Nonaka K, Ninomiya Y, Hanazawa S, Yamashita Y. Adiponectin inhibits induction of TNF-alpha/RANKL-stimulated NFATc1 via the AMPK signaling. FEBS Lett 2008; 582:451-6. [PMID: 18201570 DOI: 10.1016/j.febslet.2007.12.037] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2007] [Revised: 12/19/2007] [Accepted: 12/22/2007] [Indexed: 12/13/2022]
Abstract
We investigated here whether adiponectin can exhibit an inhibitory effect on tumor necrosis factor-alpha (TNF-alpha)- and receptor activator of nuclear factor-kappaB ligand (RANKL)-induced osteoclastogenesis by using RAW264 cell D clone with a high efficiency to form osteoclasts. Globular adiponectin (gAd) strongly inhibited TNF-alpha/RANKL-induced differentiation of osteoclasts by interfering with TNF receptor-associated factor 6 production and calcium signaling; consequently, the induction of nuclear factor of activated T cells c1 (NFATc1) was strongly inhibited. Moreover, we observed that inhibition of AMP-activated protein kinase abrogated gAd inhibition for TNF-alpha/RANKL-induced NFATc1 expression. Our data suggest that adiponectin acts as a potent regulator of bone resorption observed in diseases associated with cytokine activation.
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Affiliation(s)
- Noboru Yamaguchi
- Section of Pediatric Dentistry, Division of Oral Health, Growth and Development, Kyushu University Faculty of Dental Science, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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43
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Yamaguchi N, Kukita T, Li YJ, Martinez Argueta JG, Saito T, Hanazawa S, Yamashita Y. Adiponectin inhibits osteoclast formation stimulated by lipopolysaccharide fromActinobacillus actinomycetemcomitans. ACTA ACUST UNITED AC 2007; 49:28-34. [PMID: 17094790 DOI: 10.1111/j.1574-695x.2006.00164.x] [Citation(s) in RCA: 82] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Previous epidemiologic studies have suggested that periodontal disease is closely related to obesity and glucose tolerance. As the level of adiponectin, an adipocyte-derived cytokine, in plasma had been reported to decrease in obese and type 2 diabetes patients, we explored the role of adiponectin in the etiology of periodontitis using the D clone of RAW264, a clone that exhibits highly efficient osteoclast formation, to determine whether adiponectin acts as a regulatory molecule in osteoclast formation stimulated by lipopolysaccharide of periodontopathic bacteria. We observed that adiponectin acted as a potent inhibitor of osteoclast formation stimulated by Toll-like receptor 4 (TLR4) ligand and receptor activator of NF-kappaB ligand (RANKL). Because NF-kappaB is an important transcription factor in osteoclast formation, we examined the effect of adiponectin on its transcriptional activity. A luciferase assay showed that adiponectin was able to inhibit the TLR4-mediated NF-kappaB activity in RAW264 cells. In addition, we observed that the cytokine was actually able to inhibit TLR4-mediated expression of the gene for inducible nitric oxide synthase and production of nitric oxide in the cells. These observations strongly suggest that adiponectin may function as a negative regulator of lipopolysaccharide/RANKL-mediated osteoclast formation in periodontal disease.
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Affiliation(s)
- Noboru Yamaguchi
- Department of Preventive Dentistry, Kyushu University Faculty of Dental Science, Fukuoka, Japan.
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44
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Ogino Y, Ayukawa Y, Kukita T, Koyano K. The contribution of platelet-derived growth factor, transforming growth factor-beta1, and insulin-like growth factor-I in platelet-rich plasma to the proliferation of osteoblast-like cells. ACTA ACUST UNITED AC 2006; 101:724-9. [PMID: 16731390 DOI: 10.1016/j.tripleo.2005.08.016] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2005] [Revised: 07/14/2005] [Accepted: 08/15/2005] [Indexed: 11/18/2022]
Abstract
The aim of this study was to investigate the effect of platelet-rich plasma (PRP) on the proliferation of osteoblast-like cells in vitro. PRP was prepared using a centrifuge; the number of platelets (n = 32) and the levels of platelet-derived growth factor-AB (PDGF-AB), transforming growth factor-beta1 (TGF-beta1), and insulin-like growth factor-I (IGF-I) were measured (n = 16). For the proliferation assay, SaOS-2 was cultured in the presence of platelet-poor plasma (PPP), whole blood, or PRP. The cell number was counted after 36 and 72 hours. To investigate the effect of each growth factor, the cells were cultured with PRP in the absence or presence of neutralizing antibodies, and counted as described. The mean platelet count of PRP was 1546.36 +/- 382.25 x 10(3)/microL, and the mean levels of PDGF-AB, TGF-beta1 and IGF-I were 0.271 +/- 0.043, 0.190 +/- 0.039, and 0.110 +/- 0.039 ng/1500 x 10(3) platelets, respectively. Cell proliferation was enhanced in all PRP groups in a dose-dependent manner, and all neutralizing antibodies significantly suppressed proliferation compared with the PRP group, lacking antibody, at 36 hours. However, at 72 hours, the neutralizing antibodies of PDGF and TGF-beta1, but not IGF-I, significantly suppressed proliferation. These results show the beneficial abilities of PRP in the proliferation of osteoblast-like cells from the standpoint of growth factors, including the contribution of each factor.
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Affiliation(s)
- Yoichiro Ogino
- Section of Removable Prosthodontics, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Japan.
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45
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Nakamura T, Kukita T, Shobuike T, Nagata K, Wu Z, Ogawa K, Hotokebuchi T, Kohashi O, Kukita A. Inhibition of histone deacetylase suppresses osteoclastogenesis and bone destruction by inducing IFN-beta production. J Immunol 2005; 175:5809-16. [PMID: 16237073 DOI: 10.4049/jimmunol.175.9.5809] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Osteoclasts are bone-resorptive multinucleated cells that are differentiated from hemopoietic cell lineages of monocyte/macrophages in the presence of receptor activator of NF-kappaB ligand (RANKL) and M-CSF. Downstream signaling molecules of the receptor of RANKL, RANK, modulate the differentiation and the activation of osteoclasts. We recently found that histone deacetylase inhibitors (HDIs), known as anticancer agents, selectively suppressed osteoclastogenesis in vitro. However, the molecular mechanism underlying inhibitory action of HDIs in osteoclastogenesis and the effect of HDIs on pathological bone destruction are still not remained to be elucidated. In this study, we show that a depsipeptide, FR901228, inhibited osteoclast differentiation by not only suppressing RANKL-induced nuclear translocation of NFATc1 but also increasing the mRNA level of IFN-beta, an inhibitor of osteoclastogenesis. The inhibition of osteoclast formation by FR901228 was abrogated by the addition of IFN-beta-neutralizing Ab. In addition, treatment of adjuvant-induced arthritis in rats revealed that FR901228 inhibited not only disease development in a prophylactic model but also bone destruction in a therapeutic model. Furthermore, immunostaining of the joints of therapeutically treated rats revealed significant production of IFN-beta in synovial cells. Taken together, these data suggest that a HDI inhibits osteoclastogenesis and bone destruction by a novel action to induce the expression of osteoclast inhibitory protein, IFN-beta.
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Affiliation(s)
- Takahiro Nakamura
- Department of Pathology and Biodefense, Faculty of Medicine, Saga University, Saga, Japan
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46
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Tang QY, Kukita T, Ushijima Y, Kukita A, Nagata K, Sandra F, Watanabe T, Toh K, Okuma Y, Kawasaki S, Rasubala L, Teramachi J, Miyamoto I, Wu Z, Iijima T. Regulation of osteoclastogenesis by Simon extracts composed of caffeic acid and related compounds: successful suppression of bone destruction accompanied with adjuvant-induced arthritis in rats. Histochem Cell Biol 2005; 125:215-25. [PMID: 16205940 DOI: 10.1007/s00418-005-0062-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/09/2005] [Indexed: 02/01/2023]
Abstract
Simon extracts are vitamin K(1)-rich food materials extracted from the leaves of the Simon sweet potato. Although vitamin K is known to stimulate bone formation, we postulated that Simon extracts also contain unknown biological compounds having the ability to regulate bone resorption. Here we prepared the vitamin K-free fraction from the Simon extracts and investigated the ability of this fraction on the differentiation of osteoclasts. A remarkable inhibitory effect of osteoclastogenesis was observed when osteoclast precursors were treated with this fraction in rat bone marrow culture systems as well as in a pure differentiation system using murine osteoclast precursor cell line. The vitamin K-free Simon extracts markedly suppressed severe bone destruction mediated by abundant osteoclasts associated with adjuvant-induced arthritis in rats. High performance liquid chromatography (HPLC) analysis revealed that the vitamin K-free Simon extracts contained three types of low molecular weight inhibitors for osteoclastogenesis; caffeic acid, chlorogenic acids and isochlorogenic acids. Among these substances, caffeic acid showed the most powerful inhibitory effects on osteoclastogenesis. Caffeic acid significantly suppressed expression of NFATc1, a key transcription factor for the induction of osteoclastogenesis. Our current study enlightened a high utility of the Simon extracts and their chemical components as effective regulators for bone resorption accompanied with inflammation and metabolic bone diseases.
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Affiliation(s)
- Quan Yong Tang
- Oral Cellular and Molecular Biology, Kyushu University, Maidashi 3-1-1, Fukuoka, 812-8582, Japan
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47
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Nomiyama H, Egami K, Wada N, Tou K, Horiuchi M, Matsusaki H, Miura R, Yoshie O, Kukita T. Identification of genes differentially expressed in osteoclast-like cells. J Interferon Cytokine Res 2005; 25:227-31. [PMID: 15812249 DOI: 10.1089/jir.2005.25.227] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Homeostasis of the skeletal system is maintained by a balance between bone formation and resorption. The receptor activator of NF-kappaB ligand (RANKL) induces the differentiation of bone-resorbing cells, osteoclasts. To identify genes regulated during osteoclast differentiation, we constructed a subtraction cDNA library using a mouse RAW264 macrophage cell line that differentiates into osteoclast-like multinucleated cells after treatment with RANKL. Northern blot analysis showed that RANKL treatment upregulated expression of 17 genes. Among these were the genes for five H(+)-ATPase subunits, two chemokines, and the osteoclast marker cathepsin K. In addition, a mouse homolog of human dendritic cell (DC)-specific transmembrane protein (DCSTAMP), whose function in osteoclastogenesis was recently revealed, was also included in the induced genes. Characterization of these inducible genes will provide an insight into the biology of osteoclasts and the mechanism of bone-related diseases.
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Affiliation(s)
- Hisayuki Nomiyama
- Department of Molecular Enzymology, Kumamoto University Graduate School of Medical Sciences, Kumamoto 860-8556, Japan.
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48
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Sandra F, Hendarmin L, Kukita T, Nakao Y, Nakamura N, Nakamura S. Ameloblastoma induces osteoclastogenesis: a possible role of ameloblastoma in expanding in the bone. Oral Oncol 2005; 41:637-44. [PMID: 15935726 DOI: 10.1016/j.oraloncology.2005.02.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2005] [Accepted: 02/11/2005] [Indexed: 10/25/2022]
Abstract
Ameloblastoma, a tumor located in bone, when neglected, can perforate the bone and, ultimately, spread into the soft tissues. To expand in the bone, ameloblastoma must have a mechanism of resorbing the surrounding bone. However, the mechanism for bone resorption is poorly understood. In the present study, we found that RANKL and TNFalpha were expressed and secreted by ameloblastoma cells, and was proven to induce osteoclastogenesis. Our present results also showed that phosphorylation of p38, SAPK, p44/42 and Akt were upregulated under treatment of 10xCM (concentrated conditioned media of AM-1 cells). We also noticed formation of resorption lacunae on dentin slice by 10xCM-induced osteoclast-like MNCs. These results suggested that ameloblastoma by secreting RANKL and TNFalpha could induce osteoclastogenesis.
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Affiliation(s)
- Ferry Sandra
- Laboratory of Oral Cellular and Molecular Biology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
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49
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Ohishi M, Matsumura Y, Aki D, Mashima R, Taniguchi K, Kobayashi T, Kukita T, Iwamoto Y, Yoshimura A. Suppressors of Cytokine Signaling-1 and -3 Regulate Osteoclastogenesis in the Presence of Inflammatory Cytokines. J Immunol 2005; 174:3024-31. [PMID: 15728516 DOI: 10.4049/jimmunol.174.5.3024] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Bone metabolism and the immune system have a correlative relationship, and both are controlled by various common cytokines, such as IFNs and ILs, produced in the bone microenvironments. The suppressor of cytokine signaling-1 (SOCS1) and SOCS3 are negative regulators of such cytokines. Although SOCSs are shown to be induced during osteoclast differentiation, their physiological roles in osteoclast differentiation and function have not been clarified. Thus, we examined the roles of SOCS1 and SOCS3 in osteoclastogenesis using SOCS1- and SOCS3-deficient mice. IFN-gamma-mediated inhibition of osteoclast differentiation from bone marrow-derived monocytes (BMMs) was strongly enhanced in SOCS1-deficient BMMs, but was diminished in SOCS1-overexpressing BMMs. Moreover, LPS-induced osteoclastogenesis and bone destruction in vivo were suppressed in SOCS1(+/-) mice compared with those in wild-type mice, suggesting that SOCS1 antagonizes the inhibitory effect of IFN-gamma on osteoclastogenesis. SOCS3 did not alter the inhibitory effect of IFNs in osteoclastogenesis in both gain and loss of functional assays; however, the suppressive effect of IL-6 on osteoclast differentiation was greater in SOCS3-deficient BMMs than in wild-type BMMs in vitro. In addition, IL-6 significantly prevented LPS-induced bone destruction in SOCS3-deficient mice, although it failed in wild-type mice in vivo. In SOCS3-deficient BMMs, expression levels of TNF-receptor-associated factor-6 and IkappaB were drastically reduced and receptor activator of the NF-kappaB ligand-induced IkappaB phosphorylation was severely impaired in the presence of IL-6. These data suggest that both SOCS1 and SOCS3 regulate osteoclastogenesis by blocking the inhibitory effect of inflammatory cytokines on receptor activator of the NF-kappaB ligand-mediated osteoclast differentiation signals. Selective suppression of SOCS1 and SOCS3 in osteoclast precursors may be a possible therapeutic strategy for inflammatory bone destruction.
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Affiliation(s)
- Masanobu Ohishi
- Division of Molecular and Cellular Immunology, Medical Institute of Bioregulation, Faculty of Dental Sciences, Kyushu University, Fukuoka, Japan
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50
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Kukita T, Wada N, Kukita A, Kakimoto T, Sandra F, Toh K, Nagata K, Iijima T, Horiuchi M, Matsusaki H, Hieshima K, Yoshie O, Nomiyama H. RANKL-induced DC-STAMP is essential for osteoclastogenesis. ACTA ACUST UNITED AC 2004; 200:941-6. [PMID: 15452179 PMCID: PMC2213286 DOI: 10.1084/jem.20040518] [Citation(s) in RCA: 274] [Impact Index Per Article: 13.7] [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] [Indexed: 01/29/2023]
Abstract
Osteoclasts are bone-resorbing, multinucleated giant cells that are essential for bone remodeling and are formed through cell fusion of mononuclear precursor cells. Although receptor activator of nuclear factor-kappaB ligand (RANKL) has been demonstrated to be an important osteoclastogenic cytokine, the cell surface molecules involved in osteoclastogenesis are mostly unknown. Here, we report that the seven-transmembrane receptor-like molecule, dendritic cell-specific transmembrane protein (DC-STAMP) is involved in osteoclastogenesis. Expression of DC-STAMP is rapidly induced in osteoclast precursor cells by RANKL and other osteoclastogenic stimulations. Targeted inhibition of DC-STAMP by small interfering RNAs and specific antibody markedly suppressed the formation of multinucleated osteoclast-like cells. Overexpression of DC-STAMP enhanced osteoclastogenesis in the presence of RANKL. Furthermore, DC-STAMP directly induced the expression of the osteoclast marker tartrate-resistant acid phosphatase. These data demonstrate for the first time that DC-STAMP has an essential role in osteoclastogenesis.
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Affiliation(s)
- Toshio Kukita
- Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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