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Yanbin F, Yilin T, Yaomin M, Deshuang X, Junhong Z, Gaofeng Z, Shaohui Z. Unveiling the potential of Butylphthalide: inhibiting osteoclastogenesis and preventing bone loss. Front Pharmacol 2024; 15:1347241. [PMID: 38464734 PMCID: PMC10922197 DOI: 10.3389/fphar.2024.1347241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/09/2024] [Indexed: 03/12/2024] Open
Abstract
Osteoporosis, resulting from overactive osteoclasts and leading to elevated fracture risk, has emerged as a global public health concern due to the aging population. Therefore, inhibiting osteoclastogenesis and bone resorption function represents a crucial approach for preventing and treating osteoporosis. The purpose of this study was to examine the effects and molecular mechanisms of Butylphthalide (NBP) on the differentiation and function of osteoclasts induced by RANKL. Osteoclastogenesis was assessed through TRAP staining and bone slice assay. An animal model that underwent ovariectomy, simulating postmenopausal women's physiological characteristics, was established to investigate the impact of Butylphthalide on ovariectomy-induced bone loss. To delve deeper into the specific mechanisms, we employed Western blot, PCR, immunofluorescence, and immunohistochemical staining to detect the expression of proteins that are associated with the osteoclast signaling pathway. In this study, we found that Butylphthalide not only suppressed osteoclastogenesis and bone resorption in vitro but also significantly decreased TRAcP-positive osteoclasts and prevented bone loss in vivo. Further mechanistic experiments revealed that Butylphthalide reduces intracellular ROS in osteoclasts, inhibits the MAPK and NFATc1 signaling pathways, and downregulates the key genes and proteins of osteoclasts. This inhibits osteoclast formation and function. The reduction in ROS in osteoclasts is intricately linked to the activity of Butylphthalide-modulated antioxidant enzymes. Overall, NBP may offer a alternative treatment option with fewer side effects for skeletal diseases such as osteoporosis.
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Affiliation(s)
- Feng Yanbin
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
- Department of Spine, Guangxi Medical University, Nanning, Guangxi, China
| | - Teng Yilin
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Mo Yaomin
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Xi Deshuang
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Zhou Junhong
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
| | - Zeng Gaofeng
- Department of Nutrition and Food Hygiene, College of Public Hygiene of Guangxi Medical University, Nanning, Guangxi, China
| | - Zong Shaohui
- Department of Spine Osteopathia, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, Guangxi, China
- Department of Spine, Guangxi Medical University, Nanning, Guangxi, China
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Tao H, Li X, Chu M, Wang Q, Li P, Han Q, Chen K, Zhu P, Hao Y, Yang X, Geng D, Gu Y. CB2 regulates oxidative stress and osteoclastogenesis through NOX1-dependent signaling pathway in titanium particle-induced osteolysis. Cell Death Discov 2023; 9:461. [PMID: 38104087 PMCID: PMC10725463 DOI: 10.1038/s41420-023-01761-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 11/29/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023] Open
Abstract
Periprosthetic osteolysis (PPO) induced by wear particles at the interface between the prosthesis and bone is a crucial issue of periprosthetic bone loss and implant failure. After wear and tear, granular material accumulates around the joint prosthesis, causing a chronic inflammatory response, progressive osteoclast activation and eventual loosening of the prosthesis. Although many studies have been conducted to address bone loss after joint replacement surgeries, they have not fully addressed these issues. Focusing on osteoclast activation induced by particles has important theoretical implications. Cannabinoid type II receptor (CB2) is a seven-transmembrane receptor that is predominantly distributed in the human immune system and has been revealed to be highly expressed in bone-associated cells. Previous studies have shown that modulation of CB2 has a positive effect on bone metabolism. However, the exact mechanism has not yet been elucidated. In our experiments, we found that NOX1-mediated ROS accumulation was involved in titanium particle-stimulated osteoclast differentiation. Furthermore, we confirmed that CB2 blockade alleviated titanium particle-stimulated osteoclast activation by inhibiting the NOX1-mediated oxidative stress pathway. In animal experiments, downregulation of CB2 alleviated the occurrence of titanium particle-induced cranial osteolysis by inhibiting osteoclasts and scavenging intracellular ROS. Collectively, our results suggest that CB2 blockade may be an attractive and promising therapeutic scheme for particle-stimulated osteoclast differentiation and preventing PPO.
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Affiliation(s)
- Huaqiang Tao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Xueyan Li
- Anesthesiology department, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Miao Chu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Qiufei Wang
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Ping Li
- Department of Central Laboratory, Nanjing Medical University Affiliated Suzhou Hospital, Gusu School, Suzhou, Jiangsu, China
| | - Qibin Han
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Kai Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Pengfei Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China
| | - Yuefeng Hao
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China
| | - Xing Yang
- Orthopedics and Sports Medicine Center, Suzhou Municipal Hospital, Nanjing Medical University Affiliated Suzhou Hospital, 242, Guangji Road, Suzhou, Jiangsu, China.
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, No. 188 Shizi Street, Suzhou, Jiangsu, China.
| | - Ye Gu
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.
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Choi RY, Kim IW, Ji M, Paik MJ, Ban EJ, Lee JH, Hwang JS, Kweon H, Seo M. Protaetia brevitarsis seulensis larvae ethanol extract inhibits RANKL-stimulated osteoclastogenesis and ameliorates bone loss in ovariectomized mice. Biomed Pharmacother 2023; 165:115112. [PMID: 37413903 DOI: 10.1016/j.biopha.2023.115112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 06/29/2023] [Accepted: 06/29/2023] [Indexed: 07/08/2023] Open
Abstract
Modulation of osteoclast formation could be a therapeutic target for inhibiting pathological bone destruction. The receptor activator of nuclear factor (NF)-κB ligand (RANKL) is known to be an essential factor in osteoclast differentiation and activation inducers. However, whether Protaetia brevitarsis seulensis (P. brevitarsis) larvae-a traditional animal-derived medicine used in many Asian countries-can inhibit RANKL-induced osteoclast formation and prevent ovariectomy (OVX)-induced bone loss has not been evaluated. Here, we aimed to investigate the anti-osteoporotic effects of P. brevitarsis larvae ethanol extract (PBE) in RANKL-stimulated RAW264.7 cells and OVX mice. In vitro, PBE (0.1, 0.5, 1, and 2 mg/mL) decreased RANKL‑induced tartrate-resistant acid phosphatase (TRAP) activity and expression of osteoclastogenesis-associated genes and proteins. Furthermore, PBE (0.1, 0.5, 1, and 2 mg/mL) significantly inhibited the phosphorylation of p38 and NF-κB. Female C3H/HeN mice were divided into five groups (n = 5 per group), namely, sham-operated, OVX, OVX+PBEL (100 mg/kg, oral gavage), OVX+PBEH (200 mg/kg, oral gavage), and OVX+estradiol (0.03 μg/day, subcutaneous injection). High doses of PBE significantly increased femoral bone mineral density (BMD) and bone volume/tissue volume (BV/TV), whereas femoral bone surface/bone volume (BS/BV) and osteoclastogenesis-associated protein expression decreased compared to those in the OVX group. Moreover, PBE (200 mg/kg) significantly increased estradiol and procollagen type I N-terminal propeptide and decreased N-terminal telopeptide of type I collagen and C-terminal telopeptide of type I collagen compared to those in the OVX group. Our results suggest that PBE can be an effective therapeutic candidate for preventing or treating postmenopausal osteoporosis.
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Affiliation(s)
- Ra-Yeong Choi
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - In-Woo Kim
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - Moongi Ji
- College of Pharmacy, Sunchon National University, Suncheon 57922, the Republic of Korea
| | - Man-Jeong Paik
- College of Pharmacy, Sunchon National University, Suncheon 57922, the Republic of Korea
| | - Eu-Jin Ban
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - Joon Ha Lee
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - HaeYong Kweon
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea
| | - Minchul Seo
- Department of Agricultural Biology, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, the Republic of Korea.
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Xu Y, Song D, Lin X, Peng H, Su Y, Liang J, Hai N, Zhao J, Liu Q. Corylifol A protects against ovariectomized-induced bone loss and attenuates RANKL-induced osteoclastogenesis via ROS reduction, ERK inhibition, and NFATc1 activation. Free Radic Biol Med 2023; 196:121-132. [PMID: 36649902 DOI: 10.1016/j.freeradbiomed.2023.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
Osteoclast differentiation and function are critical targets for anti-osteoporosis treatment. Oxidative stress also plays an important regulatory role in the differentiation of osteoclasts. Corylifol A (CA) is a flavonoid extracted from the Psoralea fruit. It has anti-inflammatory and antioxidant properties despite its unknown effect on osteoporosis. This study found that CA prevented estrogen-deficiency-induced bone loss and suppressed osteoclastogenesis in ovariectomized (OVX) mice by inhibiting intracellular reactive oxygen species (ROS) levels. In vivo, CA effectively prevented trabecular bone loss and reduced osteoclasts' number on the bone surface in OVX mice, as demonstrated in micro-CT, osteometry, and immunohistochemical data. However, CA did not affect cortical bone. In vitro, CA inhibited RANKL-induced podosome belt formation, osteoclastogenesis, and bone resorption functions. CA suppressed RANKL-induced ROS by boosting antioxidant enzymes (Catalase and NQO1) and NFATc1 signaling pathway related protein expression, including integrin αvβ3, NFATc1 and CTSK. Moreover, CA inhibited osteoclast-specific genes, including Ctsk, Acp5, and Mmp9. CA also attenuated the MAPK/ERK pathway, but did not affect the NF-κB signaling pathway. In terms of osteogenesis, CA did not inhibit or promote osteogenic differentiation and mineralization in vitro. These results reveal that CA could be a new replacement therapy for treating estrogen-deficiency osteoporosis via suppressing osteoclastogenesis and intracellular ROS.
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Affiliation(s)
- Yinglong Xu
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Department of Trauma Orthopaedic and Hand Surgery, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Dezhi Song
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Xixi Lin
- State Key Laboratory of Cellular Stress Biology, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Hui Peng
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China; Department of Orthopaedic, Minzu Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Yuangang Su
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Jiamin Liang
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Na Hai
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China
| | - Jinmin Zhao
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China; Guangxi Key Laboratory of Regenerative Medicine, Guangxi Medical University, Nanning, Guangxi, China.
| | - Qian Liu
- Research Centre for Regenerative Medicine, Department of Trauma Orthopaedic and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
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Nam MH, Park HJ, Seo YK. Reduction of Osteoclastic Differentiation of Raw 264.7 Cells by EMF Exposure through TRPV4 and p-CREB Pathway. Int J Mol Sci 2023; 24:ijms24043058. [PMID: 36834470 PMCID: PMC9959640 DOI: 10.3390/ijms24043058] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/28/2023] [Accepted: 01/29/2023] [Indexed: 02/09/2023] Open
Abstract
In this study, we investigated the effect of EMF exposure on the regulation of RANKL-induced osteoclast differentiation in Raw 264.7 cells. In the EMF-exposed group, the cell volume did not increase despite RANKL treatment, and the expression levels of Caspase-3 remained much lower than those in the RANKL-treated group. TRAP and F-actin staining revealed smaller actin rings in cells exposed to EMF during RANKL-induced differentiation, indicating that EMF inhibited osteoclast differentiation. EMF-irradiated cells exhibited reduced mRNA levels of osteoclastic differentiation markers cathepsin K (CTSK), tartrate-resistant acid phosphatase (TRAP), and matrix metalloproteinase 9 (MMP-9). Furthermore, as measured by RT-qPCR and Western blot, EMF induced no changes in the levels of p-ERK and p-38; however, it reduced the levels of TRPV4 and p-CREB. Overall, our findings indicate that EMF irradiation inhibits osteoclast differentiation through the TRPV4 and p-CREB pathway.
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Lee GH, Hoang TH, Lee HY, Lim YJ, Kim JH, Jung SJ, Chae SW, Rashid MMU, Chae HJ, Yoon SJ. Ramie leaf Extract Alleviates Bone Loss in Ovariectomized Rats-The Involvement of ROS and Its Associated Signalings. Nutrients 2023; 15:nu15030745. [PMID: 36771450 PMCID: PMC9918923 DOI: 10.3390/nu15030745] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/26/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Ramie leaf (Boehmeria nivea L.) has been traditionally used to treat gynecological and bone-related disorders. This study aims to evaluate the effect of Ramie leaf extracts (RLE) against osteoporosis in ovariectomized (OVX) rats. Female SD rats aged seven weeks were randomly assigned into five OVX and a sham-operated (sham) group. OVX subgroups include OVX, vehicle-treated OVX group; E2, OVX with 100 μg/kg 17β-estradiol; and RLE 0.25, 0.5, and 1, OVX rats treated with 0.25, 0.5, and 1 g/kg/day RLE, respectively. Two weeks into the bilateral ovariectomy, all the rats were orally administered with or without RLE daily for 12 weeks. OVX rats administered with RLE showed higher bone density, relatively low tartrate-resistant acid phosphatase (TRAP)-positive osteoclasts, and lower reactive oxygen species (ROS) within bone tissues compared to vehicle-treated OVX rats. Furthermore, supplementation of RLE improved bone mineral density (BMD) and bone microstructure in the total femur. RLE prevented RANKL-induced osteoclast differentiation and expression of osteoclastogenesis-related genes such as Cal-R, MMP-9, cathepsin K, and TRAP in RANKL-induced RAW264.7 cells. Moreover, RLE administration lowered the intracellular ROS levels by reducing NADPH oxidase 1 (NOX-1) and 4-hydroxynonenal (4HNE). These results suggest that RLE alleviates bone mass loss in the OVX rats by inhibiting osteoclastogenesis, where reduced ROS and its associated signalings were involved.
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Affiliation(s)
- Geum-Hwa Lee
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - The-Hiep Hoang
- Department of Obstetrics and Gynecology, Hue University of Medicine and Pharmacy, Hue University, Hue 52000, Vietnam
| | - Hwa-Young Lee
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Non-Clinical Evaluation Center, Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Young-Je Lim
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Non-Clinical Evaluation Center, Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Ji-Hyun Kim
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Non-Clinical Evaluation Center, Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Su-Jin Jung
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Clinical Trial Center for Functional Foods (CTCF2), Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Soo-Wan Chae
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Clinical Trial Center for Functional Foods (CTCF2), Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Mohammad Mamun Ur Rashid
- Department of Pharmacology, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
| | - Han-Jung Chae
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Non-Clinical Evaluation Center, Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- School of Pharmacy, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Correspondence: (H.-J.C.); (S.-J.Y.)
| | - Sun-Jung Yoon
- Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
- Department of Orthopedic Surgery, Jeonbuk National University Medical School, Jeonju 54907, Republic of Korea
- Correspondence: (H.-J.C.); (S.-J.Y.)
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Ulagesan S, Krishnan S, Nam TJ, Choi YH. A Review of Bioactive Compounds in Oyster Shell and Tissues. Front Bioeng Biotechnol 2022; 10:913839. [PMID: 35733526 PMCID: PMC9208005 DOI: 10.3389/fbioe.2022.913839] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/25/2022] [Indexed: 12/15/2022] Open
Abstract
Oysters are saltwater bivalves with high nutritional and medicinal value that are consumed widely around the world. As well as being highly nutritious, oysters are a low-calorie, low-cholesterol source of protein and an exceptional source of zinc, which strengthens the immune system; and a rich source of bioactive compounds, which comprise various biological activities. The present review summarizes the biological applications and bioactive compounds from oyster shells, whole tissue, gill tissue, and mantle tissue. The various biological compounds present in an oyster shell, and their chemical constituents, have applications in the food, pharmaceutical, and medical industries. Bioactive peptides and proteins obtained from the whole, mantle, and gill tissues of oysters exhibit antioxidant, antimicrobial, antihypertensive, anticancer, antifatigue, anticoagulant, and anti-wrinkle effects, as well as enhance osteoblast differentiation. This review clearly shows that oysters have great potential for functional food production and that various compounds therein can have pharmaceutical applications.
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Affiliation(s)
- Selvakumari Ulagesan
- Division of Fisheries Life Sciences, Pukyong National University, Busan, South Korea
| | - Sathish Krishnan
- School of Earth, Ocean, and Atmospheric Sciences, Goa University, Taleigao, India
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Busan, South Korea
| | - Youn-Hee Choi
- Division of Fisheries Life Sciences, Pukyong National University, Busan, South Korea
- Institute of Fisheries Sciences, Pukyong National University, Busan, South Korea
- *Correspondence: Youn-Hee Choi,
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Weng W, Li H, Zhu S. An Overlooked Bone Metabolic Disorder: Cigarette Smoking-Induced Osteoporosis. Genes (Basel) 2022; 13:genes13050806. [PMID: 35627191 PMCID: PMC9141076 DOI: 10.3390/genes13050806] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 12/19/2022] Open
Abstract
Cigarette smoking (CS) leads to significant bone loss, which is recognized as an independent risk factor for osteoporosis. The number of smokers is continuously increasing due to the addictive nature of smoking. Therefore it is of great value to effectively prevent CS-induced osteoporosis. However, there are currently no effective interventions to specifically counteract CS-induced osteoporosis, owing to the fact that the specific mechanisms by which CS affects bone metabolism are still elusive. This review summarizes the latest research findings of important pathways between CS exposure and bone metabolism, with the aim of providing new targets and ideas for the prevention of CS-induced osteoporosis, as well as providing theoretical directions for further research in the future.
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Affiliation(s)
- Weidong Weng
- Department of Trauma and Reconstructive Surgery, BG Trauma Clinic, Siegfried Weller Institute for Trauma Research, Eberhard Karls University Tuebingen, 72076 Tuebingen, Germany;
| | - Hongming Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China;
| | - Sheng Zhu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China;
- Correspondence:
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Tan S, Su Y, Huang L, Deng S, Yan G, Yang X, Chen R, Xian Y, Liang J, Liu Q, Cheng J. Corilagin attenuates osteoclastic osteolysis by enhancing HO‐1 and inhibiting ROS. J Biochem Mol Toxicol 2022; 36:e23049. [PMID: 35307913 DOI: 10.1002/jbt.23049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/13/2022] [Accepted: 03/04/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Shaolin Tan
- Department of Trauma Orthopedic and Hand Surgery The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
- Department of Orthopaedics The Second Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Yuangang Su
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Linke Huang
- Research Centre for Regenerative Medicine, Department of Orthopaedic The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
- Department of Orthopaedics The Second Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
| | - Siyu Deng
- Department of Trauma Orthopedic and Hand Surgery The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
| | - Guohua Yan
- Department of Trauma Orthopedic and Hand Surgery The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
| | - Xue Yang
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Runfeng Chen
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Yansi Xian
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Jiamin Liang
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Qian Liu
- Research Centre for Regenerative Medicine, Department of Orthopaedic The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
- Guangxi Key Laboratory of Regenerative Medicine Guangxi Medical University Nanning Guangxi China
| | - Jianwen Cheng
- Department of Trauma Orthopedic and Hand Surgery The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
- Research Centre for Regenerative Medicine, Department of Orthopaedic The First Affiliated Hospital of Guangxi Medical University Nanning Guangxi China
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10
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Fermented Oyster (Crassostrea gigas) Extract Cures and Prevents Prednisolone-Induced Bone Resorption by Activating Osteoblast Differentiation. Foods 2022; 11:foods11050678. [PMID: 35267311 PMCID: PMC8909515 DOI: 10.3390/foods11050678] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 12/30/2022] Open
Abstract
Osteoporosis is a bone resorptive disease characterized by the loss of bone density, causing an increase in bone fragility. In our previous study, we demonstrated that gamma aminobutyric acid-enriched fermented oyster (Crassostrea gigas) extract (FO) stimulated osteogenesis in MC3T3-E1 preosteoblast cells and vertebral formation in zebrafish. However, the efficacy of FO in prednisolone (PDS)-induced bone resorption remains unclear. In this study, we evaluated the osteogenic potential of FO in MC3T3-E1 preosteoblast cells and zebrafish larvae under both PDS-pretreated and PDS-post-treated conditions. We found that FO recovered osteogenic activity by upregulating osteoblast markers, such as alkaline phosphatase (ALP), runt-related transcription factor 2, and osterix, in both PDS-pretreated and post-treated MC3T3-E1 osteoblast cells and zebrafish larvae. In both conditions, PDS-induced decrease in calcification and ALP activity was recovered in the presence of FO. Furthermore, vertebral resorption in zebrafish larvae induced by pretreatment and post-treatment with PDS was restored by treatment with FO, along with the recovery of osteogenic markers and downregulation of osteoclastogenic markers. Finally, whether FO disturbs the endocrine system was confirmed according to the Organization for Economic Cooperation and Development guideline 455. We found that FO did not stimulate estrogen response element-luciferase activity or proliferation in MCF7 cells. Additionally, in ovariectomized mice, no change in uterine weight was observed during FO feeding. These results indicate that FO effectively prevents and treats PDS-induced osteoporosis without endocrine disturbances.
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Oh S, Choi CH, Lee BJ, Park JH, Son KH, Byun K. Fermented Oyster Extract Attenuated Dexamethasone-Induced Muscle Atrophy by Decreasing Oxidative Stress. Molecules 2021; 26:molecules26237128. [PMID: 34885708 PMCID: PMC8658907 DOI: 10.3390/molecules26237128] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/12/2021] [Accepted: 11/22/2021] [Indexed: 12/25/2022] Open
Abstract
It is well known that oxidative stress induces muscle atrophy, which decreases with the activation of Nrf2/HO-1. Fermented oyster extracts (FO), rich in γ-aminobutyric acid (GABA) and lactate, have shown antioxidative effects. We evaluated whether FO decreased oxidative stress by upregulating Nrf2/HO-1 and whether it decreased NF-κB, leading to decreased IL-6 and TNF-α. Decreased oxidative stress led to the downregulation of Cbl-b ubiquitin ligase, which increased IGF-1 and decreased FoxO3, atrogin1, and Murf1, and eventually decreased muscle atrophy in dexamethasone (Dexa)-induced muscle atrophy animal model. For four weeks, mice were orally administered with FO, GABA, lactate, or GABA+Lactate, and then Dexa was subcutaneously injected for ten days. During Dexa injection period, FO, GABA, lactate, or GABA+Lactate were also administered, and grip strength test and muscle harvesting were performed on the day of the last Dexa injection. We compared the attenuation effect of FO with GABA, lactate, and GABA+lactate treatment. Nrf2 and HO-1 expressions were increased by Dexa but decreased by FO; SOD activity and glutathione levels were decreased by Dexa but increased by FO; NADPH oxidase activity was increased by Dexa but decreased by FO; NF-κB, IL-6, and TNF-α activities were increased by Dexa were decreased by FO; Cbl-b expression was increased by Dexa but restored by FO; IGF-1 expression was decreased by Dexa but increased by FO; FoxO3, Atrogin-1, and MuRF1 expressions were increased by Dexa but decreased by FO. The gastrocnemius thickness and weight were decreased by Dexa but increased by FO. The cross-sectional area of muscle fiber and grip strength were decreased by Dexa but increased by FO. In conclusion, FO decreased Dexa-induced oxidative stress through the upregulation of Nrf2/HO-1. Decreased oxidative stress led to decreased Cbl-b, FoxO3, atrogin1, and MuRF1, which attenuated muscle atrophy.
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Affiliation(s)
- Seyeon Oh
- Functional Cellular Networks Laboratory, Department of Medicine, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, Gachon University College of Medicine, Incheon 21999, Korea;
| | - Chang Hu Choi
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Korea;
| | - Bae-Jin Lee
- Marine Bioprocess Co., Ltd., Smart Marine BioCenter, Busan 46048, Korea; (B.-J.L.); (J.-H.P.)
| | - Joung-Hyun Park
- Marine Bioprocess Co., Ltd., Smart Marine BioCenter, Busan 46048, Korea; (B.-J.L.); (J.-H.P.)
| | - Kuk-Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Korea;
- Correspondence: (K.-H.S.); (K.B.); Tel.: +82-32-460-3666 (K.-H.S.); +82-32-899-6511 (K.B.)
| | - Kyunghee Byun
- Functional Cellular Networks Laboratory, Department of Medicine, Graduate School and Lee Gil Ya Cancer and Diabetes Institute, Gachon University College of Medicine, Incheon 21999, Korea;
- Department of Anatomy and Cell Biology, Gachon University College of Medicine, Incheon 21936, Korea
- Correspondence: (K.-H.S.); (K.B.); Tel.: +82-32-460-3666 (K.-H.S.); +82-32-899-6511 (K.B.)
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Zhu S, Häussling V, Aspera-Werz RH, Chen T, Braun B, Weng W, Histing T, Nussler AK. Bisphosphonates Reduce Smoking-Induced Osteoporotic-Like Alterations by Regulating RANKL/OPG in an Osteoblast and Osteoclast Co-Culture Model. Int J Mol Sci 2020; 22:ijms22010053. [PMID: 33374546 PMCID: PMC7793101 DOI: 10.3390/ijms22010053] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023] Open
Abstract
Co-culture models have become mandatory for obtaining better insights into bone homeostasis, which relies on the balance between osteoblasts and osteoclasts. Cigarette smoking (CS) has been proven to increase the risk of osteoporosis; however, there is currently no proven treatment for osteoporosis in smokers excluding cessation. Bisphosphonates (BPs) are classical anti-osteoclastic drugs that are commonly used in examining the suitability of bone co-culture systems in vitro as well as to verify the response to osteoporotic stimuli. In the present study, we tested the effects of BPs on cigarette smoke extract (CSE)-affected cells in the co-culture of osteoblasts and osteoclasts. Our results showed that BPs were able to reduce CSE-induced osteoporotic alterations in the co-culture of osteoblasts and osteoclasts such as decreased matrix remodeling, enhanced osteoclast activation, and an up-regulated receptor activator of nuclear factor (NF)-kB-ligand (RANKL)/osteoprotegerin (OPG) ratio. In summary, BPs may be an effective alternative therapy for reversing osteoporotic alterations in smokers, and the potential mechanism is through modulation of the RANKL/OPG ratio.
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In Vitro and In Vivo Effects of Fermented Oyster-Derived Lactate on Exercise Endurance Indicators in Mice. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17238811. [PMID: 33260934 PMCID: PMC7729911 DOI: 10.3390/ijerph17238811] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 12/11/2022]
Abstract
Exogenous lactate administration has more recently been investigated for its various prophylactic effects. Lactate derived from potential functional foods, such as fermented oyster extract (FO), may emerge as a practical and effective method of consuming exogenous lactate. The current study endeavored to ascertain whether the lactate derived from FO may act on muscle cell biology, and to what extent this may translate into physical fitness improvements. We examined the effects of FO in vitro and in vivo, on mouse C2C12 cells and exercise performance indicators in mice, respectively. In vitro, biochemical analysis was carried out to determine the effects of FO on lactate content and muscle cell energy metabolism, including adenosine triphosphate (ATP) activity. Western blot analysis was also utilized to measure the protein expression of total adenosine monophosphate-activated protein kinase (AMPK), p-AMPK (Thr172), lactate dehydrogenase (LDH), succinate dehydrogenase (SDHA) and peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α) in response to FO administration. Three experimental groups were formed: a positive control (PC) treated with 1% horse serum, FO10 treated with 10 μg/mL and FO50 treated with 50 μg/mL. In vivo, the effects of FO supplementation on exercise endurance were measured using the Rota-rod test, and Western blot analysis measured myosin heavy-chain 2 (MYH2) to assess skeletal muscle growth, alongside p-AMPK, total-AMPK, PGC-1α, cytochrome C and UCP3 protein expression. Biochemical analysis was also performed on muscle tissue to measure the changes in concentration of liver lactate, lactate dehydrogenase (LDH), glycogen and citrate. Five groups (n = 10/per group) consisted of a control group (CON), exercise group (Ex), positive control treated with Ex and 500 mg/kg Taurine (Ex-Tau), Ex and 100 mg/kg FO supplementation (Ex-FO100) and Ex and 200 mg/kg FO supplementation (Ex-FO200) orally administered over the 4-week experimental period.FO50 significantly increased PGC-1α expression (p < 0.001), whereas both FO10 and FO50 increased the expression of p-AMPK (p < 0.001), in C2C12 muscle cells, showing increased signaling important for mitochondrial metabolism and biogenesis. Muscle lactate levels were also significantly increased following FO10 (p < 0.05) and FO50 (p < 0.001). In vivo, muscle protein expression of p-AMPK (p < 0.05) and PGC-1α were increased, corroborating our in vitro results. Cytochrome C also significantly increased following FO200 intake. These results suggest that the effects of FO supplementation may manifest in a dose-response manner. FO administration, in vitro, and supplementation, in vivo, both demonstrate a potential for improvements in mitochondrial metabolism and biogenesis, and even for potentiating the adaptive effects of endurance exercise. Mechanistically, lactate may be an important molecule in explaining the aforementioned positive effects of FO.
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Jeong A, Park BC, Kim HY, Choi JY, Cheon J, Park JH, Lee BJ, Kim K. Efficacy and safety of fermented oyster extract for height of children with short stature: a randomized placebo-controlled trial. Integr Med Res 2020; 10:100691. [PMID: 33680842 PMCID: PMC7918253 DOI: 10.1016/j.imr.2020.100691] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/01/2020] [Accepted: 11/02/2020] [Indexed: 11/17/2022] Open
Abstract
Background Some experimental studies have established the effect of oysters on the promotion of body growth. Yet, there is a lack of human clinical studies. The objective of this study was to evaluate the effect of a fermented oyster (FO) extract on the increase in the height of children with stature in the 25th percentile by age. Methods In total, 100 children (6–11 years old) were randomly divided into two (FO or control) groups. For 24 weeks, the subjects in the FO group took the FO extract once daily before sleeping, whereas the control group took placebo extracts, simultaneously. We evaluated the height gain, height velocity (HV), height standard deviation score (SDS), urine deoxypyridinoline (DPD), growth hormone (GH), insulin-like growth factor (IGF-1), and IGF binding protein 3 (IGFBP-3). Results The height gain and height SDS were significantly higher in the FO group than in the placebo group after 24 weeks (height gain: p < 0.001, height SDS: p < 0.005). The HV was also significantly higher in the FO group than in the placebo group after the 6th and 24th week (p = 0.001, p = 0.004). After 24 weeks, we observed a decrease in GH, IGF, and IGFBP-3 in both groups. However, serum IGFBP-3 level in the FO group reduced less than placebo group. Conclusion FO supplementation may help to increase the height of children, and the effect might be mediated via effects on the IGFBP-3 levels.
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Affiliation(s)
- Aram Jeong
- Department of Korean Pediatrics, School of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - Beom-Chan Park
- Department of Korean Pediatrics, School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea
| | - Hee-Yeon Kim
- Department of Korean Pediatrics, Korean Medicine Hospital, Pusan National University, Yangsan, Republic of Korea
| | - Jun-Yong Choi
- Department of Internal Medicine, School of Korean Medicine, and Korean Medicine Hospital of Pusan National University, Yangsan, Republic of Korea
| | - Jinhong Cheon
- Department of Korean Pediatrics, School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea.,Department of Korean Pediatrics, Korean Medicine Hospital, Pusan National University, Yangsan, Republic of Korea
| | | | - Bae-Jin Lee
- Marine Bioprocess Co. Ltd., Busan, Republic of Korea
| | - Kibong Kim
- Department of Korean Pediatrics, School of Korean Medicine, Pusan National University, Yangsan, Republic of Korea.,Department of Korean Pediatrics, Korean Medicine Hospital, Pusan National University, Yangsan, Republic of Korea
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Lee H, Hwangbo H, Ji SY, Kim MY, Kim SY, Kim DH, Hong SH, Lee SJ, Assefa F, Kim GY, Park EK, Park JH, Lee BJ, Jeon YJ, Choi YH. Gamma Aminobutyric Acid-Enriched Fermented Oyster ( Crassostrea gigas) Increases the Length of the Growth Plate on the Proximal Tibia Bone in Sprague-Dawley Rats. Molecules 2020; 25:molecules25194375. [PMID: 32977643 PMCID: PMC7582314 DOI: 10.3390/molecules25194375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 11/16/2022] Open
Abstract
Bone growth during childhood and puberty determines an adult’s final stature. Although several prior studies have reported that fermented oyster (FO) consisting of a high amount of gamma aminobutyric acid can be attributed to bone health, there is no research on the efficacy of FO on growth regulation and the proximal tibial growth plate. Therefore, in this study, we investigated the effect of FO oral administration on hepatic and serum growth regulator levels and the development of the proximal tibial growth plate in young Sprague-Dawley rats. Both oral administration of FO (FO 100, 100 mg/kg FO and FO 200, 200 mg/kg FO) and subcutaneous injection of recombinant human growth hormone (rhGH, 200 μg/kg of rhGH) for two weeks showed no toxicity. Circulating levels of growth hormone (GH) significantly increased in the FO 200 group. The expression and secretion of insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3) were enhanced by FO administration. FO administration promoted the expression of bone morphogenic proteins IGF-1 and IGFBP-3 in the proximal tibial growth plate. This positive effect of FO resulted in incremental growth of the entire plate length by expanding the proliferating and hypertrophic zones in the proximal tibial growth plate. Collectively, our results suggested that oral administration of FO is beneficial for bone health, which may ultimately result in increased height.
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Affiliation(s)
- Hyesook Lee
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
| | - Hyun Hwangbo
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Molecular Biology, Pusan National University, Busan 46241, Korea
| | - Seon Yeong Ji
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
| | - Min Yeong Kim
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
| | - So Young Kim
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Molecular Biology, Pusan National University, Busan 46241, Korea
| | - Da Hye Kim
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Smart Bio-Health, Dong-eui University, Busan 47340, Korea
| | - Su Hyun Hong
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
| | - Su Jeong Lee
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu 41940, Korea; (S.J.L.); (F.A.); (E.K.P.)
| | - Freshet Assefa
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu 41940, Korea; (S.J.L.); (F.A.); (E.K.P.)
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (G.-Y.K.); (Y.-J.J.)
| | - Eui Kyun Park
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu 41940, Korea; (S.J.L.); (F.A.); (E.K.P.)
| | - Joung-Hyun Park
- Ocean Fisheries & Biology Center, Marine Bioprocess Co., Ltd., Busan 46048, Korea; (J.-H.P.); (B.-J.L.)
| | - Bae-Jin Lee
- Ocean Fisheries & Biology Center, Marine Bioprocess Co., Ltd., Busan 46048, Korea; (J.-H.P.); (B.-J.L.)
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju 63243, Korea; (G.-Y.K.); (Y.-J.J.)
| | - Yung Hyun Choi
- Anti-Aging Research Center, Dong-eui University, Busan 47340, Korea; (H.L.); (H.H.); (S.Y.J.); (M.Y.K.); (S.Y.K.); (D.H.K.); (S.H.H.)
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea
- Correspondence: ; Tel.: +82-51-890-3319
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Fermented Oyster Extract Promotes Insulin-Like Growth Factor-1-Mediated Osteogenesis and Growth Rate. Mar Drugs 2020; 18:md18090472. [PMID: 32962034 PMCID: PMC7551862 DOI: 10.3390/md18090472] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/04/2020] [Accepted: 09/16/2020] [Indexed: 12/15/2022] Open
Abstract
Fermented oyster (Crassostrea gigas) extract (FO) prevents ovariectomy-induced osteoporosis by inhibiting osteoclastogenesis and activating osteogenesis. However, the molecular mechanisms underlying FO-mediated bone formation and growth rate are unclear. In the current study, we found that FO significantly upregulated the expression of growth-promoting genes in zebrafish larvae including insulin-like growth factor 1 (zigf-1), insulin-like growth factor binding protein 3 (zigfbp-3), growth hormone-1 (zgh-1), growth hormone receptor-1 (zghr-1), growth hormone receptor alpha (zghra), glucokinase (zgck), and cholecystokinin (zccka). In addition, zebrafish larvae treated with 100 μg/mL FO increased in total body length (3.89 ± 0.13 mm) at 12 days post fertilization (dpf) compared to untreated larvae (3.69 ± 0.02 mm); this effect was comparable to that of the β-glycerophosphate-treated zebrafish larvae (4.00 ± 0.02 mm). Furthermore, FO time- and dose-dependently increased the extracellular release of IGF-1 from preosteoblast MC3T3-E1 cells, which was accompanied by high expression of IGF-1. Pharmacological inhibition of IGF-1 receptor (IGF-1R) using picropodophyllin (PPP) significantly reduced FO-mediated vertebrae formation (from 9.19 ± 0.31 to 5.53 ± 0.35) and growth performance (from 3.91 ± 0.02 to 3.69 ± 0.01 mm) in zebrafish larvae at 9 dpf. Similarly, PPP significantly decreased FO-induced calcium deposition in MC3T3-E1 cells by inhibiting GSK-3β phosphorylation at Ser9. Additionally, DOI hydrochloride, a potent stabilizer of GSK-3β, reduced FO-induced nuclear translocation of RUNX2. Transient knockdown of IGF-1Rα/β using specific silencing RNA also resulted in a significant decrease in calcium deposition and reduction in GSK-3β phosphorylation at Ser9 in MC3T3-E1 cells. Altogether, these results indicate that FO increased phosphorylated GSK-3β at Ser9 by activating the autocrine IGF-1-mediated IGF-1R signaling pathway, thereby promoting osteogenesis and growth performance. Therefore, FO is a potential nutritional supplement for bone formation and growth.
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Park C, Lee H, Han MH, Jeong JW, Kim SO, Jeong SJ, Lee BJ, Kim GY, Park EK, Jeon YJ, Choi YH. Cytoprotective effects of fermented oyster extracts against oxidative stress-induced DNA damage and apoptosis through activation of the Nrf2/HO-1 signaling pathway in MC3T3-E1 osteoblasts. EXCLI JOURNAL 2020; 19:1102-1119. [PMID: 33013267 PMCID: PMC7527492 DOI: 10.17179/excli2020-2376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 07/29/2020] [Indexed: 12/11/2022]
Abstract
Osteoblast damage by oxidative stress has been recognized as a cause of bone-related disease, including osteoporosis. Recently, we reported that fermented Pacific oyster (Crassostrea gigas) extracts (FO) inhibited osteoclastogenesis and osteoporosis, while promoting osteogenesis. However, since the beneficial potential of FO on osteoblasts is not well known, in the present study, we investigated the cytoprotective effect of FO against oxidative stress in MC3T3-E1 osteoblasts. Our results demonstrated that FO inhibited hydrogen peroxide (H2O2)-induced DNA damage and cytotoxicity through the rescue of mitochondrial function by blocking abnormal ROS accumulation. FO also prevented apoptosis by suppressing loss of mitochondrial membrane potential and cytosolic release of cytochrome c, decreasing the rate of Bax/Bcl-2 expression and reducing the activity of caspase-9 and caspase-3 in H2O2-stimulated MC3T3-E1 osteoblasts, suggesting that FO protected MC3T3-E1 osteoblasts from the induction of caspase dependent- and mitochondria-mediated apoptosis by oxidative stress. In addition, FO markedly promoted the activation of nuclear factor-erythroid-2-related factor 2 (Nrf2), which was associated with the enhanced expression of heme oxygenase-1 (HO-1). However, inhibiting the expression of HO-1 by artificially blocking the expression of Nrf2 using siRNA significantly eliminated the protective effect of FO, indicating that FO activates the Nrf2/HO-1 signaling pathway in MC3T3-E1 osteoblasts to protect against oxidative stress. Based on the present data, FO is thought to be useful as a potential therapeutic agent for the inhibition of oxidative stress in osteoblasts.
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Affiliation(s)
- Cheol Park
- Division of Basic Sciences, College of Liberal Studies, Dong?eui University, Busan, Republic of Korea
| | - Hyesook Lee
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan, Republic of Korea
| | - Min Ho Han
- National Marine Biodiversity Institute of Korea, Seocheon, Republic of Korea
| | - Jin-Woo Jeong
- Freshwater Bioresources Utilization Bureau, Nakdonggang National Institute of Biological Resources, Sangju, Republic of Korea
| | - Sung Ok Kim
- Department of Food Science and Biotechnology, College of Engineering, Kyungsung University, Busan, Republic of Korea
| | - Soon-Jeong Jeong
- Department of Dental Hygiene, College of Health Science, Youngsan University, Yangsan, Republic of Korea
| | - Bae-Jin Lee
- Ocean Fisheries & Biology Center, Marine Bioprocess Co., Ltd., Busan, Republic of Korea
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju, Republic of Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju, Republic of Korea
| | - Yung Hyun Choi
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan, Republic of Korea
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Li M, Hao L, Li L, Liu L, Chen G, Jiang W, Xu W, Zhu C, Yao G, Fang S. Cinnamtannin B-1 Prevents Ovariectomy-Induced Osteoporosis via Attenuating Osteoclastogenesis and ROS Generation. Front Pharmacol 2020; 11:1023. [PMID: 32754032 PMCID: PMC7365944 DOI: 10.3389/fphar.2020.01023] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoporosis (OP) is one of the common bone metabolic diseases that endangers postmenopausal women and the elders. Both excessive bone resorption caused by osteoclast over-activation and increased oxidative stress are associated with osteoporosis. Cinnamtannin B-1 (CB-1) is considered as a high-valued plant extract monomer due to its antioxidant properties. However, the mechanism of CB-1 impacts on reducing oxidative stress, inhibiting the production of reactive oxygen species (ROS) and osteoclast differentiation and preventing ovariectomy-induced osteoporosis are still unclear. In this study, the effects of CB-1 on nuclear factor κB (RANKL)-induced osteoclasts formation and differentiation in vitro and the potential therapeutic effect on ovariectomy (OVX)-induced osteoporosis in vivo are investigated. CB-1 was found to inhibit osteoclast formation and bone resorption function in a dose-dependent manner, and it inhibited specific genes related to osteoclast as well. Micro-CT and histopathological staining showed that CB-1 can effectively prevent OVX-induced osteoporosis. In addition, CB-1 treatment can effectively inhibit the production of reactive oxygen species (ROS) in vivo and in vitro. Mechanistically, CB-1 inhibits the activation of osteoclasts by inhibiting the activation of the NF-κB signaling pathway. In conclusion, CB-1 would be able to be used as a promising new drug strategy to inhibit RANKL-induced osteoclastogenesis and prevent ovariectomy-induced osteoporosis.
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Affiliation(s)
- Meng Li
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Li Hao
- Department of Oncology, The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Lei Li
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lei Liu
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Guang Chen
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wei Jiang
- Department of Orthopaedics, The Fourth Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Xu
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Chen Zhu
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Gang Yao
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shiyuan Fang
- Department of Orthopaedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Lee H, Hwang-Bo H, Ji SY, Kim MY, Kim SY, Woo M, Keum YS, Noh JS, Park JH, Lee BJ, Kim GY, Park EK, Chang YC, Jeon YJ, Choi YH. Effect of fermented oyster extract on growth promotion in Sprague-Dawley rats. Integr Med Res 2020; 9:100412. [PMID: 32509520 PMCID: PMC7264051 DOI: 10.1016/j.imr.2020.100412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 03/31/2020] [Accepted: 03/31/2020] [Indexed: 12/13/2022] Open
Abstract
Background Oysters (Crassostrea gigas) are a popular marine product worldwide and have the advantage of nutritional benefits. This study aimed to investigate the effect of fermented oyster extract (FO) on growth promotion, including analysis of body size, bone microarchitecture, hematology and biochemistry in vivo. Methods The amount of nutrients and gamma aminobutyric acid (GABA) were determined. Sprague–Dawley rats were randomly divided into four groups: the control group, FO 50 group (FO 50 mg/kg), and FO 100 group (FO 100 mg/kg) were administered orally once daily and the recombinant human growth hormone (rhGH) group (200 μg/kg) was intraperitoneally injected once daily for 14 days. Results Oral administration of FO 100 significantly increased body length and had no effect on organ damage or hematological profiles. However, administration of rhGH significantly induced hypertrophy of the liver, kidney and spleen along with a marked increase in body length. Tibia length and the growth plate were increased, and bone morphometric parameters were slightly improved by FO and rhGH administration. Serum analysis showed that the levels of GH and insulin like growth factor-1 (IGF-1) were slightly upregulated by FO administration. Nevertheless, the protein expression of hepatic IGF-1 was markedly increased by FO 100 and rhGH administration. Conclusions FO have high content of GABA, and induced positive effects on body length, tibial length, growth-plate length and hepatic IGF-1 synthesis in SD rats with no toxicity or alterations of hematological profile. Therefore, these results suggest that GABA-enriched FO could be considered a potential alternative treatment for growth stimulation.
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Affiliation(s)
- Hyesook Lee
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
| | - Hyun Hwang-Bo
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
| | - Seon Yeong Ji
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
| | - Min Yeong Kim
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
| | - So Young Kim
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
| | - Minji Woo
- Busan Innovation Institute of Industry, Science & Technology Planning, Busan, Republic of Korea
| | - Young-Sam Keum
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University, Goyang, Republic of Korea
| | - Jeong Sook Noh
- Department of Food Science & Nutrition, Tongmyong University, Busan, Republic of Korea
| | - Joung-Hyun Park
- Ocean Fisheries & Biology Center, Marine Bioprocess Co., Ltd., Busan, Republic of Korea
| | - Bae-Jin Lee
- Ocean Fisheries & Biology Center, Marine Bioprocess Co., Ltd., Busan, Republic of Korea
| | - Gi-Young Kim
- Department of Marine Life Science, Jeju National University, Jeju, Republic of Korea
| | - Eui Kyun Park
- Department of Pathology and Regenerative Medicine, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Young-Chae Chang
- Research Institute of Biomedical Engineering and Department of Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - You-Jin Jeon
- Department of Marine Life Science, Jeju National University, Jeju, Republic of Korea
| | - Yung Hyun Choi
- Anti-Aging Research Center, Dong-eui University, Busan, Republic of Korea
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Dolmatova LS, Dolmatov IY. Different Macrophage Type Triggering as Target of the Action of Biologically Active Substances from Marine Invertebrates. Mar Drugs 2020; 18:E37. [PMID: 31906518 PMCID: PMC7024355 DOI: 10.3390/md18010037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/28/2019] [Accepted: 12/30/2019] [Indexed: 12/11/2022] Open
Abstract
Macrophages play a fundamental role in the immune system. Depending on the microenvironment stimuli, macrophages can acquire distinct phenotypes characterized with different sets of the markers of their functional activities. Polarization of macrophages towards M1 type (classical activation) is involved in inflammation and the related progression of diseases, while, in contrast, alternatively activated M2 macrophages are associated with the anti-inflammatory mechanisms. Reprogramming macrophages to switch their phenotypes could provide a new therapeutic strategy, and targeting the M1/M2 macrophage balance is a promising current trend in pharmacology. Marine invertebrates are a vast source of the variety of structurally diverse compounds with potent pharmacological activities. For years, a large number of studies concerning the immunomodulatory properties of the marine substances have been run with using some intracellular markers of immune stimulation or suppression irrespective of the possible application of marine compounds in reprogramming of macrophage activation, and only few reports clearly demonstrated the macrophage-polarizing activities of some marine compounds during the last decade. In this review, the data on the immunomodulating effects of the extracts and pure compounds of a variety of chemical structure from species of different classes of marine invertebrates are described with focus on their potential in shifting M1/M2 macrophage balance towards M1 or M2 phenotype.
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Affiliation(s)
- Lyudmila S. Dolmatova
- V.I. Il‘ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, Baltiyskaya 43, 690041 Vladivostok, Russia
| | - Igor Yu. Dolmatov
- National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Palchevsky 17, 690041 Vladivostok, Russia;
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21
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Fermented Oyster Extract Promotes Osteoblast Differentiation by Activating the Wnt/β-Catenin Signaling Pathway, Leading to Bone Formation. Biomolecules 2019; 9:biom9110711. [PMID: 31698882 PMCID: PMC6920898 DOI: 10.3390/biom9110711] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 12/20/2022] Open
Abstract
The Pacific oyster, Crassostrea gigas, is well-known as a nutritious food. Recently, we revealed that fermented extract of C. gigas (FO) inhibited ovariectomy-induced osteoporosis, resulting from suppression of osteoclastogenesis. However, since the beneficial effect of FO on osteogenesis is poorly understood, it was examined in mouse preosteoblast MC3T3-E1 cells, human osteosarcoma MG-63 osteoblast-like cells, and zebrafish larvae in this study. We found that FO increased mitochondrial activity from days 1 to 7; however, total cell number of MC3T3-E1 cells gradually decreased without any change in cell viability, which suggests that FO stimulates the differentiation of MC3T3-E1 cells. FO also promoted the expression of osteoblast marker genes, including runt-related transcription factor 2 (mRUNX2), alkaline phosphatase (mALP), collagen type I α1 (mCol1α1), osteocalcin (mOCN), osterix (mOSX), bone morphogenetic protein 2 (mBMP2), and mBMP4 in MC3T3-E1 cells accompanied by a significant increase in ALP activity. FO also increased nuclear translocation of RUNX2 and OSX transcription factors, ALP activity, and calcification in vitro along with the upregulated expression of osteoblast-specific marker proteins such as RUNX2, ALP, Col1α1, OCN, OSX, and BMP4. Additionally, FO enhanced bone mineralization (calcein intensity) in zebrafish larvae at 9 days post-fertilization comparable to that in the β-glycerophosphate (GP)-treated group. All the tested osteoblast marker genes, including zRUNX2a, zRUNX2b, zALP, zCol1a1, zOCN, zBMP2, and zBMP4, were also remarkably upregulated in the zebrafish larvae in response to FO. It also promoted tail fin regeneration in adult zebrafish as same as the GP-treated groups. Furthermore, not only FO positively regulate β-catenin expression and Wnt/β-catenin luciferase activity, but pretreatment with a Wnt/β-catenin inhibitor (FH535) also significantly decreased FO-mediated bone mineralization in zebrafish larvae, which indicates that FO-induced osteogenesis depends on the Wnt/β-catenin pathway. Altogether, the current study suggests that the supplemental intake of FO has a beneficial effect on osteogenesis.
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Reactive Oxygen Species in Osteoclast Differentiation and Possible Pharmaceutical Targets of ROS-Mediated Osteoclast Diseases. Int J Mol Sci 2019; 20:ijms20143576. [PMID: 31336616 PMCID: PMC6678498 DOI: 10.3390/ijms20143576] [Citation(s) in RCA: 255] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 07/19/2019] [Accepted: 07/21/2019] [Indexed: 12/18/2022] Open
Abstract
Reactive oxygen species (ROS) and free radicals are essential for transmission of cell signals and other physiological functions. However, excessive amounts of ROS can cause cellular imbalance in reduction–oxidation reactions and disrupt normal biological functions, leading to oxidative stress, a condition known to be responsible for the development of several diseases. The biphasic role of ROS in cellular functions has been a target of pharmacological research. Osteoclasts are derived from hematopoietic progenitors in the bone and are essential for skeletal growth and remodeling, for the maintenance of bone architecture throughout lifespan, and for calcium metabolism during bone homeostasis. ROS, including superoxide ion (O2−) and hydrogen peroxide (H2O2), are important components that regulate the differentiation of osteoclasts. Under normal physiological conditions, ROS produced by osteoclasts stimulate and facilitate resorption of bone tissue. Thus, elucidating the effects of ROS during osteoclast differentiation is important when studying diseases associated with bone resorption such as osteoporosis. This review examines the effect of ROS on osteoclast differentiation and the efficacy of novel chemical compounds with therapeutic potential for osteoclast related diseases.
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Ihn HJ, Kim JA, Lim S, Nam SH, Hwang SH, Lim J, Kim GY, Choi YH, Jeon YJ, Lee BJ, Bae JS, Kim YH, Park EK. Fermented Oyster Extract Prevents Ovariectomy-Induced Bone Loss and Suppresses Osteoclastogenesis. Nutrients 2019; 11:nu11061392. [PMID: 31234292 PMCID: PMC6627411 DOI: 10.3390/nu11061392] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/10/2019] [Accepted: 06/20/2019] [Indexed: 01/08/2023] Open
Abstract
There is growing interest in bioactive substances from marine organisms for their potential use against diverse human diseases. Osteoporosis is a skeletal disorder associated with bone loss primarily occurring through enhanced osteoclast differentiation and resorption. Recently, we reported the anti-osteoclastogenic activity of fermented Pacific oyster (Crassostrea gigas) extract (FO) in vitro. The present study focused on investigating the anti-osteoporotic efficacy of FO in bone loss prevention in an experimental animal model of osteoporosis and elucidating the mechanism underlying its effects. Oral administration of FO significantly decreased ovariectomy-induced osteoclast formation and prevented bone loss, with reduced serum levels of bone turnover biomarkers including osteocalcin and C-terminal telopeptide fragment of type I collagen C-terminus (CTX). FO significantly suppressed receptor activator of nuclear factor-κB ligand (RANKL)-induced differentiation of bone marrow-derived macrophages (BMMs) into osteoclasts and attenuated the induction of osteoclast-specific genes required for osteoclastogenesis and bone resorption. Furthermore, FO inhibited RANKL-mediated IκBα and p65 phosphorylation in BMMs. Taken together, these results demonstrate that FO effectively suppresses osteoclastogenesis in vivo and in vitro, and that FO can be considered as a potential therapeutic option for the treatment of osteoporosis and osteoclast-mediated skeletal diseases.
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Affiliation(s)
- Hye Jung Ihn
- Institute for Hard Tissue and Biotooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea.
| | - Ju Ang Kim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
| | - Soomin Lim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
| | - Sang-Hyeon Nam
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
| | - So Hyeon Hwang
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
| | - Jiwon Lim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
| | - Gi-Young Kim
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea.
| | - Yung Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dong-Eui University, Busan 47227, Korea.
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Korea.
| | - Bae-Jin Lee
- Marine Bioprocess Co., Ltd., Busan 46048, Korea.
| | - Jong-Sup Bae
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Korea.
| | - Yeo Hyang Kim
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu 41944, Korea.
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu 41940, Korea.
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