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Jin C, Yu XB, Yang J, Lin Z, Ma RX, Lin BH, Zhang HJ, Dai ZH, Xue K, Xie CL, Zheng W, Feng Y, Xiao J, Yang L. Corynoline Suppresses Osteoclastogenesis and Attenuates ROS Activities by Regulating NF-κB/MAPKs and Nrf2 Signaling Pathways. J Agric Food Chem 2024; 72:8149-8166. [PMID: 38551844 DOI: 10.1021/acs.jafc.3c07088] [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] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Declining estrogen production in postmenopausal females causes osteoporosis in which the resorption of bone exceeds the increase in bone formation. Although clinical drugs are currently available for the treatment of osteoporosis, sustained medication use is accompanied by serious side effects. Corydalis bungeana Herba, a famous traditional Chinese herb listed in the Chinese Pharmacopoeia Commission, constitutes various traditional Chinese Medicine prescriptions, which date back to thousands of years. One of the primary active components of C. bungeana Turcz. is Corynoline (Cor), a plant isoquinoline alkaloid derived from the Corydalis species, which possesses bone metabolism disease therapeutic potential. The study aimed at exploring the effects as well as mechanisms of Cor on osteoclast formation and bone resorption. TRAcP staining, F-actin belt formation, and pit formation were employed for assessing the osteoclast function. Western blot, qPCR, network pharmacology, and docking analyses were used for analyzing the expression of osteoclast-associated genes and related signaling pathways. The study focused on investigating how Cor affected OVX-induced trabecular bone loss by using a mouse model. Cor could weaken osteoclast formation and function by affecting the biological receptor activators of NF-κB and its ligand at various concentrations. Mechanistically, Cor inhibited the NF-κB activation, and the MAPKs pathway stimulated by RANKL. Besides, Cor enhanced the protein stability of the Nrf2, which effectively abolished the RANKL-stimulated ROS generation. According to an OVX mouse model, Cor functions in restoring bone mass, improving microarchitecture, and reducing the ROS levels in the distal femurs, which corroborated with its in vitro antiosteoclastogenic effect. The present study indicates that Cor may restrain osteoclast formation and bone loss by modulating NF-κB/MAPKs and Nrf2 signaling pathways. Cor was shown to be a potential drug candidate that can be utilized for the treatment of osteoporosis.
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Affiliation(s)
- Chen Jin
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Xian-Bin Yu
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Jiayi Yang
- Department of Gynaecology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zhen Lin
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Run-Xun Ma
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Bing-Hao Lin
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Hao-Jie Zhang
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Zi-Han Dai
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
- The Second School of Medicine, Wenzhou Medical University, Wenzhou 325000, Zhejiang, China
| | - Kaikai Xue
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
- Department of Burn and Wound Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Cheng-Long Xie
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Wenhao Zheng
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Yongzeng Feng
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
| | - Jian Xiao
- Department of Burn and Wound Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Molecular Pharmacology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Lei Yang
- Department of Orthopaedic, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
- Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou 325000, China
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Arasaki Y, Hayata T. The RNA-binding protein Cpeb4 regulates splicing of the Id2 gene in osteoclast differentiation. J Cell Physiol 2024; 239:e31197. [PMID: 38284484 DOI: 10.1002/jcp.31197] [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: 08/30/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
Cytoplasmic polyadenylation element-binding protein 4 (Cpeb4) is an RNA-binding protein that regulates posttranscriptional regulation, such as regulation of messenger RNA stability and translation. In the previous study, we reported that Cpeb4 localizes to nuclear bodies upon induction of osteoclast differentiation by RANKL. However, the mechanisms of the localization of Cpeb4 and osteoclastogenesis by Cpeb4 remain unknown. Here, we show that Cpeb4 localizes to the nuclear bodies by its RNA-binding ability and partially regulates normal splicing during osteoclast differentiation. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis with Phos-tag® revealed that the phosphorylation levels of Cpeb4 were already high in the RAW264.7 cells and were not altered by RANKL treatment. Immunofluorescence showed that exogenous Cpeb4 in HEK293T cells without RANKL stimulation localized to the same foci as shown in RANKL-stimulated RAW264.7 cells. Furthermore, when nuclear export was inhibited by leptomycin B treatment, Cpeb4 accumulated throughout the nucleus. Importantly, RNA recognition motif (RRM) 7 of Cpeb4 was essential for the localization. In contrast, the intrinsically disordered region, RRM1, and zinc finger domain CEBP_ZZ were not necessary for the localization. The mechanistic study showed that Cpeb4 co-localized and interacted with the splicing factors serine/arginine-rich splicing factor 5 (SRSF5) and SRSF6, suggesting that Cpeb4 may be involved in the splicing reaction. RNA-sequencing analysis revealed that the expression of genes related to cell proliferation processes, such as mitotic cell cycle and regulation of cell cycle processes, was elevated in osteoclasts depleted of Cpeb4. Interestingly, the splicing pattern of the inhibitor of DNA binding 2 (Id2) gene, which suppresses osteoclast differentiation, was altered by the depletion of Cpeb4. These results provide new insight into the role of Cpeb4 as a player of normal splicing of Id2 in osteoclast differentiation.
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Affiliation(s)
- Yasuhiro Arasaki
- Department of Molecular Pharmacology, Faculty of Pharmaceutical Science, Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
| | - Tadayoshi Hayata
- Department of Molecular Pharmacology, Faculty of Pharmaceutical Science, Graduate School of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
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Shan L, Yang X, Liao X, Yang Z, Zhou J, Li X, Wang B. Histone demethylase KDM7A regulates bone homeostasis through balancing osteoblast and osteoclast differentiation. Cell Death Dis 2024; 15:136. [PMID: 38346941 PMCID: PMC10861515 DOI: 10.1038/s41419-024-06521-z] [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: 08/06/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/15/2024]
Abstract
Histone methylation plays a crucial role in various cellular processes. We previously reported the in vitro function of histone lysine demethylase 7 A (KDM7A) in osteoblast and adipocyte differentiation. The current study was undertaken to investigate the physiological role of KDM7A in bone homeostasis and elucidate the underlying mechanisms. A conditional strategy was employed to delete the Kdm7a gene specifically in osterix-expressing osteoprogenitor cells in mice. The resulting mutant mice exhibited a significant increase in cancellous bone mass, accompanied by an increase in osteoblasts and bone formation, as well as a reduction in osteoclasts, marrow adipocytes and bone resorption. The bone marrow stromal cells (BMSCs) and calvarial pre-osteoblastic cells derived from the mutant mice exhibited enhanced osteogenic differentiation and suppressed adipogenic differentiation. Additionally, osteoclastic precursor cells from the mutant mice exhibited impaired osteoclast differentiation. Co-culturing BMSCs from the mutant mice with wild-type osteoclast precursor cells resulted in the inhibition of osteoclast differentiation. Mechanistic investigation revealed that KDM7A was able to upregulate the expression of fibroblast activation protein α (FAP) and receptor activator of nuclear factor κB ligand (RANKL) in BMSCs through removing repressive di-methylation marks of H3K9 and H3K27 from Fap and Rankl promoters. Moreover, recombinant FAP attenuated the dysregulation of osteoblast and adipocyte differentiation in BMSCs from Kdm7a deficient mice. Finally, Kdm7a deficiency prevented ovariectomy-induced bone loss in mice. This study establish the role of KDM7A in bone homeostasis through its epigenetic regulation of osteoblast and osteoclast differentiation. Consequently, inhibiting KDM7A may prove beneficial in ameliorating osteoporosis. KDM7A suppresses osteoblast differentiation and bone formation through. upregulating FAP expression and inactivating canonical Wnt signaling, and conversely promotes osteoclast differentiation and bone resorption through upregulating RANKL expression. These are based on its epigenetic removal of the repressive H3K9me2 and H3K27me2 marks from Fap and Rankl promoters. As a result, the expression of KDM7A in osteoprogenitor cells tends to negatively modulate bone mass.
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Affiliation(s)
- Liying Shan
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin, China
| | - Xiaoli Yang
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin, China
| | - Xiaoxia Liao
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin, China
| | - Zheng Yang
- College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China
| | - Jie Zhou
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin, China.
| | - Xiaoxia Li
- College of Basic Medical Sciences, Tianjin Medical University, Tianjin, China.
| | - Baoli Wang
- NHC Key Lab of Hormones and Development, Tianjin Key Lab of Metabolic Diseases, Tianjin Medical University Chu Hsien-I Memorial Hospital & Institute of Endocrinology, Tianjin, China.
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Guo X, Qiao G, Wang J, Yang C, Zhao M, Zhang Q, Wan Y. TIFA contributes to periodontitis in diabetic mice via activating the NF‑κB signaling pathway. Mol Med Rep 2024; 29:23. [PMID: 38099344 PMCID: PMC10784739 DOI: 10.3892/mmr.2023.13146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Diabetic periodontitis (DP) refers to destruction of periodontal tissue and absorption of bone tissue in diabetic patients. Tumor necrosis factor receptor‑associated factor (TRAF)‑interacting protein with forkhead‑associated domain (TIFA) as a crucial regulator of inflammation activates the NF‑κB signaling pathway to regulate cell biological behavior. However, the function and mechanism of TIFA on DP suffer from a lack of research. In the present study, TIFA was upregulated in the periodontal tissue of a DP mouse model. In addition, the expression of TIFA in RAW264.7 cells was induced by high glucose (HG) culture and increased by lipopolysaccharide (LPS) from Porphyromonas gingivalis treatment in a time‑dependent manner. Knockdown of TIFA significantly reduced the levels of inflammatory cytokines, including TNF‑α, IL‑6, IL‑1β and monocyte chemoattractant protein‑1, in HG and LPS‑induced RAW264.7 cells. The nuclear translocation of NF‑κB p65 was induced by HG and LPS and was clearly suppressed by absence of TIFA. The expression of downstream factors Nod‑like receptor family pyrin domain‑containing 3 and apoptosis‑associated speck‑like protein was inhibited by silencing TIFA. Moreover, TIFA was increased by receptor activator of NF‑κB (RANK) ligand (RANKL) in a concentration dependent manner. The expression of cathepsin K, MMP9 and nuclear factor of activated T cells cytoplasmic 1 was downregulated by depletion of TIFA. RANKL‑induced osteoclast differentiation was inhibited by silencing of TIFA. Meanwhile, the decrease of TIFA blocked activation of the NF‑κB pathway in RANKL‑treated RAW264.7 cells. In conclusion, TIFA as a promoter regulates the inflammation and osteoclast differentiation via activating the NF‑κB signaling pathway.
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Affiliation(s)
- Xiaoqian Guo
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
- Ningxia Key Laboratory of Oral Disease Research, School of Stomatology, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Guangwei Qiao
- Department of Oral and Maxillofacial Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Jingjiao Wang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Changyi Yang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Min Zhao
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Qian Zhang
- Department of Periodontology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Yingbiao Wan
- Department of Prosthodontics and Oral Implantology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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Kim K, Kim JH, Kim I, Seong S, Koh JT, Kim N. Sestrin2 inhibits RANKL-induced osteoclastogenesis through AMPK activation and ROS inhibition. Free Radic Biol Med 2024; 211:77-88. [PMID: 38101586 DOI: 10.1016/j.freeradbiomed.2023.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/01/2023] [Accepted: 12/11/2023] [Indexed: 12/17/2023]
Abstract
Sestrins are stress-responsive proteins with antioxidant properties. They participate in cellular redox balance and protect against oxidative damage. This study investigated the effects of Sestrin2 (Sesn2) on osteoclast differentiation and function. Overexpressing Sesn2 in osteoclast precursor cells significantly inhibited receptor activator of nuclear factor κB ligand (RANKL)-induced osteoclastogenesis. This was assessed as reduced expression of various osteoclast markers, including c-Fos, nuclear factor of activated T cells 1 (NFATc1), osteoclast-associated receptor, tartrate-resistant acid phosphatase, and cathepsin K. Conversely, downregulation of Sesn2 produced the opposite effect. Mechanistically, Sesn2 overexpression enhanced AMPK activation and the nuclear translocation of nuclear factor erythroid-derived factor 2-related factor 2 (Nrf2), promoting antioxidant enzymes. Moreover, azithromycin (Azm) induced Sesn2 expression, which suppressed RANKL-induced osteoclast differentiation. Specifically, Azm treatment reduced RANKL-induced production of reactive oxygen species in osteoclasts. Furthermore, intraperitoneal administration of Azm ameliorated RANKL-induced bone loss by reducing osteoclast activity in mice. Taken together, our results suggested that Azm-induced Sesn2 act as a negative regulator of RANKL-induced osteoclast differentiation through the AMPK/NFATc1 signaling pathway. Concisely, targeting Sesn2 can be a potential pharmacological intervention in osteoporosis.
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Affiliation(s)
- Kabsun Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea
| | - Jung Ha Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea; Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Inyoung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea
| | - Semun Seong
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea; Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jeong-Tae Koh
- Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea; Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju, 61469, Republic of Korea; Hard-Tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, 61186, Republic of Korea.
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REN P, WANG Q, BAI W, SUN M, LIU Z, GAO M, WANG L, PENG B, XU L. Identifying the effective combination of acupuncture and traditional Chinese medicinal herbs for postmenopausal osteoporosis therapy through studies of their molecular regulation of bone homeostasis. J TRADIT CHIN MED 2024; 44:212-219. [PMID: 38213257 PMCID: PMC10774716 DOI: 10.19852/j.cnki.jtcm.20230904.006] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 04/08/2023] [Indexed: 01/13/2024]
Abstract
Worldwide, as the population age, osteoporosis is becoming increasingly common, and osteoporotic fractures have a significant economic burden. Postmenopausal women are the most susceptible to developing osteoporosis and the most critical time to prevent it is during the perimenopausal and early menopausal years. In this regard, we hypothesize rational combination of acupuncture and Traditional Chinese Medicine (TCM) in the form of herbal extract could prevent osteoporosis in women. Estrogen deficiency during menopause causes low-level inflammation that stimulates the formation of osteoclasts, the bone-resorbing cells, and simultaneously inhibits the viability and function of osteoblasts, the bone-forming cells. The most potent inflammatory cytokine in skeletal homeostasis is the receptor activator of nuclear factor kappa B ligand (RANKL) that stimulates osteoclast function. Conversely, the canonical Wnt pathway is essential for osteoblastogenesis and bone formation, and estrogen deficiency leads to diminished functioning of this pathway. TCM and acupuncture could target the RANKL and the Wnt pathway in favorable ways to prevent the accelerated bone loss experienced during the early menopausal stage and promote the gain in bone mass in postmenopausal women. In this review, we propose a rational combination of specific TCM and acupuncture targeting those signaling molecules/pathways by the drugs that are in clinical use for the treatment of postmenopausal osteoporosis. Our rational approach revealed that Danshen (Radix Salviae Miltiorrhizae) could exert a synergistic effect with acupuncture. We then propose a translational path for developing the putative combination in women with postmenopausal osteoporosis to curtail the risk of osteoporotic fractures.
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Affiliation(s)
- Ping REN
- 1 Department of Health Management, the Third Affiliated Clinical Hospital of Changchun University of Chinese Medicine, Changchun 130117, China
| | - Quanwu WANG
- 2 Department of Dirty Tuina, the affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130117, China
| | - Wei BAI
- 3 Department of Acupuncture, the affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130117, China
| | - Miao SUN
- 4 Department of Rehabilitation Medicine, the 924th Hospital of the PLA Joint Logistic Support Force, Foshan 528226, China
| | - Zheling LIU
- 5 Department of College of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Ming GAO
- 5 Department of College of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Liang WANG
- 5 Department of College of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Bo PENG
- 5 Department of College of Acupuncture and Massage, Changchun University of Chinese Medicine, Changchun 130117, China
| | - Liguang XU
- 3 Department of Acupuncture, the affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130117, China
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Hirata W, Itatani Y, Masui H, Kawada K, Mizuno R, Yamamoto T, Okamoto T, Ogawa R, Inamoto S, Maekawa H, Okamura R, Kiyasu Y, Hanada K, Okamoto M, Nishikawa Y, Sugimoto N, Tamura T, Hatano E, Sakai Y, Obama K. Downregulation of osteoprotegerin in colorectal cancer cells promotes liver metastasis via activating tumor-associated macrophage. Sci Rep 2023; 13:22217. [PMID: 38097649 PMCID: PMC10721637 DOI: 10.1038/s41598-023-49312-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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023] Open
Abstract
Osteoprotegerin (OPG) is a secreted cytokine that functions as a decoy receptor for receptor activator of nuclear factor kappa-B (RANK) ligand (RANKL). Anti-RANKL treatment for bone metastasis has been widely accepted for solid tumors. However, the mechanism of OPG-RANKL-RANK signaling in systemic colorectal cancer (CRC) metastasis remains unclear. In this study, we investigated the relevance and function of OPG expression in CRC liver metastasis. First, we performed in silico analysis using The Cancer Genome Atlas public database and found that lower OPG expression in CRC was associated with poor overall survival. Immunohistochemistry analyses using resected specimen from patients with CRC in our institute confirmed the result. Patient-matched primary CRC and liver metastases showed a significant downregulation of OPG expression in metastatic lesions. In CRC cell lines, OPG expression did not suppress cell proliferation and migration. However, OPG expression inhibited macrophage migration by suppressing the RANKL-RANK pathway. Moreover, in vivo mouse liver metastasis models showed that OPG expression in CRC cells suppressed liver metastases. In addition, treatment with an anti-RANKL neutralizing antibody also suppressed liver metastases. These results showed that downregulation of OPG expression in CRC cells promotes liver metastasis by activating tumor-associated macrophage, which can become a candidate for targeted therapy with anti-RANKL neutralizing antibody for CRC liver metastasis.
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Affiliation(s)
- Wataru Hirata
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yoshiro Itatani
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Hideyuki Masui
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kenji Kawada
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Surgery, Kurashiki Central Hospital, Okayama, 710-8602, Japan
| | - Rei Mizuno
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Surgery, NHO Kyoto Medical Center, Kyoto, 611-0041, Japan
| | - Takamasa Yamamoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Takuya Okamoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ryotaro Ogawa
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Susumu Inamoto
- Department of Surgery, Japanese Red Cross Osaka Hospital, Osaka, 543-8555, Japan
| | - Hisatsugu Maekawa
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ryosuke Okamura
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yoshiyuki Kiyasu
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Keita Hanada
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Michio Okamoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yasuyo Nishikawa
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Naoko Sugimoto
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Takuya Tamura
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Etsuro Hatano
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yoshiharu Sakai
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
- Department of Surgery, Japanese Red Cross Osaka Hospital, Osaka, 543-8555, Japan
| | - Kazutaka Obama
- Department of Surgery, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawaharacho, Sakyo-ku, Kyoto, 606-8507, Japan
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Hochi H, Kubota S, Takigawa M, Nishida T. Dual roles of cellular communication network factor 6 (CCN6) in the invasion and metastasis of oral cancer cells to bone via binding to BMP2 and RANKL. Carcinogenesis 2023; 44:695-707. [PMID: 37590989 PMCID: PMC10692700 DOI: 10.1093/carcin/bgad057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/28/2023] [Accepted: 08/16/2023] [Indexed: 08/19/2023] Open
Abstract
The acquisition of motility via epithelial-mesenchymal transition (EMT) and osteoclast induction are essential for the invasion and metastasis of oral squamous cell carcinoma (OSCC) to bone. However, the molecule suppressing both EMT and osteoclastogenesis is still unknown. In this study, we found that cellular communication network factor 6 (CCN6) was less produced in a human OSCC cell line, HSC-3 with mesenchymal phenotype, than in HSC-2 cells without it. Notably, CCN6 interacted with bone morphogenetic protein 2 (BMP2) and suppressed the cell migration of HSC-3 cells stimulated by BMP2. Moreover, knockdown of CCN6 in HSC-2 cells led to the promotion of EMT and enhanced the effect of transforming growth factor-β (TGF-β) on the promotion of EMT. Furthermore, CCN6 combined with BMP2 suppressed EMT. These results suggest that CCN6 strongly suppresses EMT in cooperation with BMP2 and TGF-β. Interestingly, CCN6 combined with BMP2 increased the gene expression of receptor activator of nuclear factor-κB ligand (RANKL) in HSC-2 and HSC-3 cells. Additionally, CCN6 interacted with RANKL, and CCN6 combined with RANKL suppressed RANKL-induced osteoclast formation. In metastatic lesions, increasing BMP2 due to the bone destruction led to interference with binding of CCN6 to RANKL, which results in the promotion of bone metastasis of OSCC cells due to continuous osteoclastogenesis. These findings suggest that CCN6 plays dual roles in the suppression of EMT and in the promotion of bone destruction of OSCC in primary and metastatic lesions, respectively, through cooperation with BMP2 and interference with RANKL.
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Affiliation(s)
- Hiroaki Hochi
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8525, Japan
| | - Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8525, Japan
| | - Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Faculty of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8525, Japan
| | - Takashi Nishida
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama 700-8525, Japan
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9
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Lopes DGDF, Patricio ÉF, Assis NMSP, Coutinho-Camillo CM, Alves FDA, Kowalski LP, Jähn-Rickert K, Busse B, Rabelo GD. Cortical microarchitecture and remodeling-associated gene expression related to oral cancer prognosis. Braz Oral Res 2023; 37:e109. [PMID: 37970929 DOI: 10.1590/1807-3107bor-2023.vol37.0109] [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: 02/24/2023] [Accepted: 06/19/2023] [Indexed: 11/19/2023] Open
Abstract
The objective of this study was to assess the remodeling-associated gene expression in the mandible of patients diagnosed with oral squamous cell carcinoma (OSCC), investigating the cortical microarchitecture, and their influence on disease-free survival (DFS) and overall survival (OS) rates. A total of twenty-four patients who underwent mandibulectomy for OSCC treatment had two bone fragments harvested from the mandible for gene expression (RANK, RANKL, OPG, and SOST), and microarchitecture analysis, including bone volume, surface, mineral density, degree of anisotropy, and fractal dimension. The prognosis of the patients was assessed. The results revealed that RANK, RANKL, and SOST were predominantly downregulated, while OPG was completely downregulated. Tumors located adjacent to the posterior region of the mandible (p = 0.02), with a bone mineral density below 1.03 g/cm3 HA (p = 0.001), and a bone volume less than 86.47% (p = 0.03) were associated with poor outcomes. In conclusion, bone-remodeling-associated genes exhibited downregulation in the cortex of the mandible in OSCC patients. Additionally, the tumor's location within the mandible, bone volume, and cortical bone mineral density were identified as factors impacting DFS.
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Affiliation(s)
| | | | | | | | | | - Luiz Paulo Kowalski
- A. C. Camargo Cancer Center, Department of Stomatology, São Paulo, SP, Brazil
| | - Katharina Jähn-Rickert
- University Medical Center Hamburg-Eppendorf, Heisenberg Research Group, Department of Osteology and Biomechanics, Bioengineering and Medical Technology, Hamburg, Germany
| | - Björn Busse
- University Medical Center Hamburg-Eppendorf, Heisenberg Research Group, Department of Osteology and Biomechanics, Bioengineering and Medical Technology, Hamburg, Germany
| | - Gustavo Davi Rabelo
- Universidade Federal de Santa Catarina - UFSC, Department of Dentistry, Florianópolis, sc, Brazil
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10
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Chen Z, Cheng Z, Tang Z, Li M, Tang X, Zhang H, Sun L. Interleukin-13 reduces bone erosion in rheumatoid arthritis by up-regulating osteoprotegerin expression in fibroblast-like synoviocytes : an in vitro and in vivo study. Clin Exp Rheumatol 2023; 41:2151-2161. [PMID: 36995338 DOI: 10.55563/clinexprheumatol/b96n1e] [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: 11/05/2022] [Accepted: 02/27/2023] [Indexed: 03/29/2023]
Abstract
OBJECTIVES Bone erosion in rheumatoid arthritis (RA) is partly caused by excessive activation of osteoclasts. Osteoclasts can be derived from RA synovium and their differentiation can be inhibited by osteoprotegerin (OPG), a decoy receptor of the osteoclastogenesis-promoting cytokine receptor activator of nuclear factor κB ligand (RANKL). Fibroblast-like synoviocytes (FLSs) are the main stromal cells in the synovium that can secret OPG. The OPG secretion of FLSs can be modulated by various cytokines. Interleukin (IL)-13 can alleviate bone erosion in RA mouse models, but the mechanisms remain unclear. Therefore, we aimed to investigate whether IL-13 can induce OPG secretion by RA-FLSs, thus ameliorating bone destruction in RA by inhibiting osteoclast differentiation. METHODS OPG, RANKL, and IL-13 receptors expression by RA-FLSs were evaluated by RT-qPCR. OPG secretion was determined by ELISA. Western blot was performed to analyse OPG expression and the activation of the STAT6 pathway. IL-13 and (or) OPG siRNA pre-treated RA-FLSs conditioned medium were used in osteoclast induction to test if IL-13 can inhibit osteoclastogenesis by up-regulating OPG in RA-FLSs. Micro-CT and immunofluorescence were performed to determine if IL-13 can induce OPG expression and alleviate bone erosion in vivo. RESULTS IL-13 can promote OPG expression of RA-FLSs, and the promotion can be overcome by IL-13Rα1 or IL-13Rα2 siRNA transfection, or STAT6 inhibitor. Osteoclast differentiation can be inhibited by IL-13 pre-treated RA-FLSs conditioned medium. The inhibition can be reversed by OPG siRNA transfection. IL-13 injection can increase OPG expression in the joints while reducing bone destruction in collagen-induced arthritis mice. CONCLUSIONS IL-13 can inhibit osteoclastogenesis by up-regulating OPG in RA-FLSs through IL-13 receptors via the STAT6 pathway, thus may ameliorate bone erosion in RA.
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Affiliation(s)
- Ziyan Chen
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Zixue Cheng
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Zhicheng Tang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Clinical College of Nanjing Medical University, Nanjing, China
| | - Mei Li
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiaojun Tang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Huayong Zhang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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11
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Li J. In vivo and in vitro action mechanism of treatment of glucocorticoid-induced osteoporosis by regulation of osteoprotegerin/receptor activator of nuclear factor-κB pathways by denshensu. Cell Mol Biol (Noisy-le-grand) 2023; 69:67-74. [PMID: 37953581 DOI: 10.14715/cmb/2023.69.10.9] [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: 05/08/2023] [Indexed: 11/14/2023]
Abstract
The research aimed to discuss the action mechanism of the treatment of glucocorticoid-induced osteoporosis (GIOP) by denshensu. In the research, 60 rats were purchased and divided into a control group, model group, estradiol group, and denshensu treatment group. Except for the control group, GIOP models were established for all other groups, and then the structural changes of osseous tissues as well as osteoprotegerin (OPG), expression of receptor activator of nuclear factor-κB ligands (RANKL) were detected. Besides, the changes in osteoclasts were observed by bone marrow-derived mononuclear phagocytes in vitro. The results showed that the micro-structure of bone trabeculae, bone mineral density (BMD), and bone metabolic markers of rats in the denshensu treatment group were enhanced significantly, while trabecular separation and structural model index were reduced (P<0.05). OPG messenger ribonucleic acid (mRNA) and protein levels in the hypothalamus and femur tissues were increased, while RANKL content was remarkably decreased (P<0.05). In addition, in vitro experiments revealed that denshensu inhibited the differentiation of positive osteoclasts, and osteoclast-related genes were reduced (P<0.05). To conclude, denshensu might inhibit the expressions of OPG and RANKL and further play a role in treating GIOP.
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Affiliation(s)
- Jianshi Li
- Department of Orthopedics, The Fifth Hospital of Xiamen, Xiamen, Fujian Province, 361101, China.
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12
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Sailaja AN, Nanda N, Suryanarayana BS, Pal GK. Association of rs2073618 polymorphism and osteoprotegerin levels with hypertension and cardiovascular risks in patients with type 2 diabetes mellitus. Sci Rep 2023; 13:17451. [PMID: 37838749 PMCID: PMC10576806 DOI: 10.1038/s41598-023-44554-0] [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: 04/26/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023] Open
Abstract
There are reports of link of osteoprotegerin (OPG) gene polymorphism to type-2 diabetes (T2D) and hypertension (HTN). The objective of the study was to assess the allele frequency of OPG (rs2073618) gene polymorphism and its association with heart rate variability (HRV) and blood pressure variability profile as CVD risks in diabetes mellitus patients with hypertension undergoing treatment. T2D patients on treatment without hypertension (n = 172), with hypertension (n = 177) and 191 healthy volunteers were recruited for the study. Their blood pressure variability including baroreflex sensitivity (BRS), heart rate variability (HRV), OPG, insulin, lipid profile, receptor-activator for NFkB (RANK), receptor-activator for NFkB-Ligand (RANKL), and tumor necrosis factor-α (TNF-α) were estimated. Allele frequency of OPG (rs2073618) gene polymorphism was assessed from the DNA samples. BRS and HRV indices were decreased, and RANKL/OPG and TNF-α were increased in T2D and T2D + HTN groups, respectively compared to healthy control group. The reduction in BRS was contributed by increased inflammation and reduced SDNN of HRV in GG genotype in T2D + HTN. In GG + GC subgroup, it was additionally contributed by rise in RANKL/OPG level (β - 0.219; p 0.008). Presence of mutant GG genotype contributed to the risk of hypertension among T2D patients (OR 3.004) as well as in general population (OR 2.79). It was concluded that CV risks are more in T2D patients with HTN expressing OPG rs2073618 gene polymorphism.
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Affiliation(s)
- A Naga Sailaja
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India
| | - Nivedita Nanda
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, 605 006, India.
| | - B S Suryanarayana
- Department of Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - G K Pal
- Department of Physiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
- AIIMS, Patna, India
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13
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Abe Y, Kofman ER, Almeida M, Ouyang Z, Ponte F, Mueller JR, Cruz-Becerra G, Sakai M, Prohaska TA, Spann NJ, Resende-Coelho A, Seidman JS, Stender JD, Taylor H, Fan W, Link VM, Cobo I, Schlachetzki JCM, Hamakubo T, Jepsen K, Sakai J, Downes M, Evans RM, Yeo GW, Kadonaga JT, Manolagas SC, Rosenfeld MG, Glass CK. RANK ligand converts the NCoR/HDAC3 co-repressor to a PGC1β- and RNA-dependent co-activator of osteoclast gene expression. Mol Cell 2023; 83:3421-3437.e11. [PMID: 37751740 PMCID: PMC10591845 DOI: 10.1016/j.molcel.2023.08.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/17/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023]
Abstract
The nuclear receptor co-repressor (NCoR) complex mediates transcriptional repression dependent on histone deacetylation by histone deacetylase 3 (HDAC3) as a component of the complex. Unexpectedly, we found that signaling by the receptor activator of nuclear factor κB (RANK) converts the NCoR/HDAC3 co-repressor complex to a co-activator of AP-1 and NF-κB target genes that are required for mouse osteoclast differentiation. Accordingly, the dominant function of NCoR/HDAC3 complexes in response to RANK signaling is to activate, rather than repress, gene expression. Mechanistically, RANK signaling promotes RNA-dependent interaction of the transcriptional co-activator PGC1β with the NCoR/HDAC3 complex, resulting in the activation of PGC1β and inhibition of HDAC3 activity for acetylated histone H3. Non-coding RNAs Dancr and Rnu12, which are associated with altered human bone homeostasis, promote NCoR/HDAC3 complex assembly and are necessary for RANKL-induced osteoclast differentiation in vitro. These findings may be prototypic for signal-dependent functions of NCoR in other biological contexts.
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Affiliation(s)
- Yohei Abe
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Eric R Kofman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Maria Almeida
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Zhengyu Ouyang
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Filipa Ponte
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jasmine R Mueller
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Grisel Cruz-Becerra
- Department of Molecular Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Mashito Sakai
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Biochemistry and Molecular Biology, Nippon Medical School Hospital, Tokyo 113-8602, Japan
| | - Thomas A Prohaska
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Nathanael J Spann
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Ana Resende-Coelho
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Jason S Seidman
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Joshua D Stender
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Havilah Taylor
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Weiwei Fan
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Verena M Link
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Faculty of Biology, Department II, Ludwig-Maximilians Universität München, Planegg-Martinsried 82152, Germany
| | - Isidoro Cobo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Johannes C M Schlachetzki
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Takao Hamakubo
- Department of Protein-Protein Interaction Research, Institute for Advanced Medical Sciences, Nippon Medical School, Tokyo 113-8602, Japan
| | - Kristen Jepsen
- Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Juro Sakai
- Division of Metabolic Medicine, Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo 153-8904, Japan; Division of Molecular Physiology and Metabolism, Tohoku University Graduate School of Medicine, Sendai 980-8575, Japan
| | - Michael Downes
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Ronald M Evans
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Gene W Yeo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Stem Cell Program, University of California San Diego, La Jolla, CA 92093, USA; Institute for Genomic Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - James T Kadonaga
- Department of Molecular Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Stavros C Manolagas
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Michael G Rosenfeld
- Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA
| | - Christopher K Glass
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, CA 92093, USA; Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA.
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14
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Torres HM, Yeo D, Westendorf JJ. Pulling rank with RNA: RANKL promotes the association of PGC-1β/RNA complexes with NCoR/HDAC3 to activate gene expression in osteoclasts. Mol Cell 2023; 83:3397-3399. [PMID: 37802020 PMCID: PMC10835765 DOI: 10.1016/j.molcel.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 10/08/2023]
Abstract
In this issue, Abe et al1 report a novel mechanism by which RANKL stimulates osteoclast differentiation and bone resorption through non-coding RNAs that bind PGC-1β and convert the NCoR/HDAC3 co-repressor complex into a co-activator of AP-1- and NFκB-regulated genes.
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Affiliation(s)
- Haydee M Torres
- Departments of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Dongwook Yeo
- Departments of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Jennifer J Westendorf
- Departments of Orthopedic Surgery and Biochemistry and Molecular Biology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
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15
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Zhongheng DU, Wenjie C, Kejing T, Qiqi Z, Zhiwei S, Yong C, Su Y, Chunwu Z, Tianshen YE. Electroacupuncture stimulating Zusanli (ST36), Sanyinjiao (SP6) in mice with collagen-induced arthritis leads to adenosine A2A receptor-mediated alteration of p38α mitogen-activated protein kinase signaling and inhibition of osteoclastogenesis. J TRADIT CHIN MED 2023; 43:1103-1109. [PMID: 37946472 PMCID: PMC10623259 DOI: 10.19852/j.cnki.jtcm.2023.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/21/2022] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) stimulating Zusanli (ST36), Sanyinjiao (SP6) on inhibition of osteoclastogenesis and the role of the adenosine A2A receptor (A2AR) and the p38α Mitogen-Activated Protein Kinase (MAPK) signaling pathway in mediating this effect. METHODS Mice with collagen induced arthritis (CIA) received different treatments. Immunohistochemistry and western blotting were used to determine the levels of multiple signaling molecules in these joints [receptor activator of nuclear transcription factor-κB (NF-κB) ligand (RANKL), receptor activator of NF-κB (RANK), tumor necrosis factor receptor associated factor 6 (TRAF6), p38α, NF-κB, and nuclear factor of activated T cells C1 (NFATc1)]. Osteoclasts were identified using tartrate-resistant acid phosphatase (TRAP) staining. RESULTS The immunohistochemistry results indicated upregulation of p38α, NF-κB, and NFATc1 in the CIA-control and CIA-EA-SCH58261 groups, but reduced levels in the CIA-EA group. Western blotting indicated upregulation of RANKL, RANK, TRAF6, p38α, NF-κB, and NFATc1 in the CIA-control and CIA-EA-SCH58261 groups, but reduced expression in the CIA-EA group. Osteoclasts were more abundant in the CIA-control and CIA-EA-SCH58261 groups than in the CIA-EA group. CONCLUSIONS EA treatment enhanced the A2AR activity and inhibited osteoclast formation by inhibition of RANKL, RANK, TRAF6, p38α, NF-κB, and NFATc1. SCH58261 reversed the effect of EA. These results suggest that EA regulated p38α-MAPK signaling by increasing A2AR activity, which inhibited osteoclastogenesis.
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Affiliation(s)
- D U Zhongheng
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Cong Wenjie
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Tang Kejing
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zheng Qiqi
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Song Zhiwei
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Chen Yong
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Yang Su
- Zhejiang Provincial Key Laboratory of Aging and Neurological Disorder Research, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zhang Chunwu
- Department of Traditional Chinese Orthopedics & Traumatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y E Tianshen
- Department of Acupuncture, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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16
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Yao H, Du Y, Jiang B, Liao Y, Zhao Y, Yin M, Li T, Sheng Y, Ji Y, Du M. Sulforaphene suppresses RANKL-induced osteoclastogenesis and LPS-induced bone erosion by activating Nrf2 signaling pathway. Free Radic Biol Med 2023; 207:48-62. [PMID: 37423561 DOI: 10.1016/j.freeradbiomed.2023.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND AND PURPOSE Inflammatory disorders have been found to induce bone loss through sustained and persistent activation of osteoclast differentiation, leading to heightened bone resorption. The current pharmacological interventions for combating bone loss to harbor adverse effects or contraindications. There is a pressing need to identify drugs with fewer side effects. EXPERIMENTAL APPROACH The effect and underlying mechanism of sulforaphene (LFS) on osteoclast differentiation were illustrated in vitro and in vivo with RANKL-induced Raw264.7 cell line osteoclastogenesis and lipopolysaccharide (LPS)-induced bone erosion model. KEY RESULTS In this study, LFS has been shown to effectively impede the formation of mature osteoclasts induced from both Raw264.7 cell line and bone marrow macrophages (BMMs), mainly at the early stage. Further mechanistic investigations uncovered that LFS suppressed AKT phosphorylation. SC-79, a potent AKT activator, was found to reverse the inhibitory impact of LFS on osteoclast differentiation. Moreover, transcriptome sequencing analysis revealed that treatment with LFS led to a significant upregulation in the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and antioxidant-related genes. Then it's validated that LFS could promote NRF2 expression and nuclear translocation, as well as effectively resist oxidative stress. NRF2 knockdown reversed the suppression effect of LFS on osteoclast differentiation. In vivo experiments provide convincing evidence that LFS is protective against LPS-induced inflammatory osteolysis. CONCLUSION AND IMPLICATIONS These well-grounded and promising findings suggest LFS as a promising agent to addressing oxidative-stress related diseases and bone loss disorders.
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Affiliation(s)
- Hantao Yao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yangge Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Bulin Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yilin Liao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaoyu Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Mengjie Yin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ting Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yue Sheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaoting Ji
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Minquan Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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17
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Xu Y, Wang Y, Xiao H, Li Y. Hypoxia caused by unilateral nasal obstruction decreases mandibular density in rats through inhibition of Cyp1a1 expression. J Oral Pathol Med 2023; 52:786-794. [PMID: 37489271 DOI: 10.1111/jop.13468] [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: 12/07/2022] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Oral breathing has an important impact on morphology and bone mineral density (BMD) in a mandible. This study aimed to investigate the hub genes and mechanism regulating the mandibular BMD decrease induced by nasal obstruction. METHODS A unilateral nasal obstruction model was established in 1-week-old Wistar rats by electrocautery obstruction. BMD of the mandible was determined by micro-computed tomography. Transcriptome analysis was performed to identify differentially expressed genes (DEGs). Hub genes were identified by building protein-protein interaction network and verified by western blot. A hypoxic cell model was established in bone marrow mesenchymal stem cells (BMSCs) by using CoCl2. The expression of hypoxia-inducible factor-1α (HIF-1α), NF-kB ligand-receptor activator (RANKL), osteoprotegerin (OPG), and Cyp1a1 was detected by western blot. RESULTS The mandibular BMD of rats in the unilateral nasal obstruction group was significantly decreased. A total of 38 DEGs were identified in nasal obstruction rats compared with normal rats. A ratio of RANKL/OPG in the mandible was elevated by nasal obstruction, while the Cyp1a1 was decreased. In vitro, the HIF-1α expression and RANKL/OPG ratio were upregulated by hypoxia while the Cyp1a1 expression was decreased. Pretreatment with Cyp1a1 activator, FICZ, could increase the expression of Cyp1a1 while attenuating the activation of HIF-1α and RANKL. CONCLUSION Respiratory changes caused by nasal obstruction contribute to the decrease in Cyp1a1 expression in the mandible of juvenile rats, which is associated with disturbances in bone homeostasis controlled by the RANKL/OPG ratio.
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Affiliation(s)
- Yixin Xu
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Yixin Wang
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Hui Xiao
- Department of Orthodontic, Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Yongming Li
- Department of Orthodontics, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
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18
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Heo KW, Noh M, Hur DY, Hong TU, Park SY, Kim WJ. Bone destruction in chronic otitis media is not mediated by the RANKL pathway or estrogen receptor-alpha. Sci Prog 2023; 106:368504231199204. [PMID: 37697808 PMCID: PMC10498706 DOI: 10.1177/00368504231199204] [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] [Indexed: 09/13/2023]
Abstract
BACKGROUND Chronic otitis media with or without cholesteatoma progresses with various degrees of bone resorption and remodeling. Estrogen mediates osteoprotective effects through the receptor activator of NF-κB ligand (RANKL) pathway, which is mainly mediated by estrogen receptor-alpha (ER-α). OBJECTIVES The present study investigated the expression patterns of receptor activator of NF-κB (RANK), osteoprotegerin (OPG), RANKL, and ER-α in pathological tissue from patients with chronic otitis media to determine the roles of those factors in osteolytic mechanisms underlying the pathogenesis of chronic otitis media. METHODS Normal and pathological specimens from 18 patients with chronic otitis media were examined. RESULTS There were no significant differences in RANK, OPG, RANKL, or ER-α mRNA expression between normal and pathological specimens of epithelial tissue. CONCLUSIONS Our findings suggested that RANK, OPG, RANKL, and ER-α are not associated with the bone destruction in chronic otitis media; other cytokines may directly activate the osteoclasts in chronic otitis media.
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Affiliation(s)
- Kyung Wook Heo
- Department of Otorhinolaryngology-Head & Neck Surgery, Busan Paik Hospital, Busan, South Korea
| | - MinHye Noh
- Anatomy and Research Center for Tumor Immunology Inje University College of Medicine, Busan Paik Hospital, Busan, South Korea
| | - Dae Young Hur
- Anatomy and Research Center for Tumor Immunology Inje University College of Medicine, Busan Paik Hospital, Busan, South Korea
| | - Tae Ui Hong
- Department of Otorhinolaryngology-Head & Neck Surgery, Busan Paik Hospital, Busan, South Korea
| | - Sung Yool Park
- Department of Otorhinolaryngology-Head & Neck Surgery, Busan Paik Hospital, Busan, South Korea
| | - Woo Jin Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, Busan Paik Hospital, Busan, South Korea
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19
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MacLauchlan S, Kushwaha P, Tai A, Chen J, Manning C, Swarnkar G, Abu-Amer Y, Fitzgerald KA, Sharma S, Gravallese EM. STING-dependent interferon signatures restrict osteoclast differentiation and bone loss in mice. Proc Natl Acad Sci U S A 2023; 120:e2210409120. [PMID: 37023130 PMCID: PMC10104545 DOI: 10.1073/pnas.2210409120] [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: 06/22/2022] [Accepted: 02/14/2023] [Indexed: 04/07/2023] Open
Abstract
Stimulator of interferon genes (STING) is a key mediator of type-I interferon (IFN-I) signaling in response to a variety of stimuli, but the contribution of STING to homeostatic processes is not fully characterized. Previous studies showed that ligand activation of STING limits osteoclast differentiation in vitro through the induction of IFNβ and IFN-I interferon-stimulated genes (ISGs). In a disease model (SAVI) driven by the V154M gain-of-function mutation in STING, fewer osteoclasts form from SAVI precursors in response to receptor activator of NF-kappaB ligand (RANKL) in an IFN-I-dependent manner. Due to the described role of STING-mediated regulation of osteoclastogenesis in activation settings, we sought to determine whether basal STING signaling contributes to bone homeostasis, an unexplored area. Using whole-body and myeloid-specific deficiency, we show that STING signaling prevents trabecular bone loss in mice over time and that myeloid-restricted STING activity is sufficient for this effect. STING-deficient osteoclast precursors differentiate with greater efficiency than wild types. RNA sequencing of wild-type and STING-deficient osteoclast precursor cells and differentiating osteoclasts reveals unique clusters of ISGs including a previously undescribed ISG set expressed in RANKL naïve precursors (tonic expression) and down-regulated during differentiation. We identify a 50 gene tonic ISG signature that is STING dependent and shapes osteoclast differentiation. From this list, we identify interferon-stimulated gene 15 (ISG15) as a tonic STING-regulated ISG that limits osteoclast formation. Thus, STING is an important upstream regulator of tonic IFN-I signatures shaping the commitment to osteoclast fates, providing evidence for a nuanced and unique role for this pathway in bone homeostasis.
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Affiliation(s)
- Susan MacLauchlan
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Priyanka Kushwaha
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Albert Tai
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Jia Chen
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Catherine Manning
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
| | - Gaurav Swarnkar
- Department of Orthopedics and Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, MO63110
| | - Yousef Abu-Amer
- Department of Orthopedics and Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, MO63110
| | - Katherine A. Fitzgerald
- Department of Medicine, Program in Innate Immunity, University of Massachusetts Chan Medical School, Worcester, MA01655
| | - Shruti Sharma
- Department of Immunology, Tufts University School of Medicine, Boston, MA02111
| | - Ellen M. Gravallese
- Division of Rheumatology, Inflammation, and Immunity, Department of Medicine, Brigham and Women’s Hospital, Boston, MA02115
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20
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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: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [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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21
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Zhuang Q, Chen S, Zhang W, Gu M, Xiao L, Li Y, Yang Y, Feng C, Li H, Geng D, Wang Z. Avicularin Alleviates Osteoporosis in Ovariectomized Mice by Inhibiting Osteoclastogenesis through NF-κB Pathway Inhibition. J Agric Food Chem 2023; 71:411-420. [PMID: 36540936 PMCID: PMC9838558 DOI: 10.1021/acs.jafc.2c05954] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Osteoporosis (OP) is mainly manifested by bone loss and bone degeneration. OP is considered a risk factor for pathological fractures, as well as impacts the health of middle-aged and elderly individuals. Drug therapy remains the main treatment scheme for OP; however, its efficacy is limited and has been associated with serious side effects. Therefore, it is important to develop new, effective, and safe treatment methods for OP. Avicularin (AL) is a flavonoid and quercetin derivative from various plants. Our study showed that AL disrupts osteoclast activation and resorptive function via inhibition of the RANKL-induced osteoclast differentiation together with the resorption capacity of bone marrow-derived macrophages (BMMs). Hence, AL prevents the activation and resorptive activity of osteoclasts. The results of qPCR showed that genes related to osteoclasts exhibited downregulated expression after AL treatment. Furthermore, AL inhibited RANKL-induced phosphorylation as well as degradation of the inhibitor IκBα of the NF-κB pathway, together with P65 phosphorylation in BMMs. We used an OP mouse model that was established by ovariectomy (OVX). Relative to untreated OP mice, mice that received AL treatment showed a significant increase in bone mineral density; however, the expression of TRAP, NFATC1, mmp9, and CTX-1 was significantly reduced. These results indicate that AL disrupts osteoclastogenesis via inhibition of the NF-κB pathway, which in turn improves OVX-induced OP.
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Affiliation(s)
- Qi Zhuang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Shuangshuang Chen
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Wei Zhang
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
| | - Minhui Gu
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Long Xiao
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yajun Li
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yunshang Yang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Chengcheng Feng
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Hong Li
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Dechun Geng
- Department
of Orthopedics, The First Affiliated Hospital
of Soochow University, Suzhou 215006, China
| | - Zhirong Wang
- Translational
Medical Innovation Center, Zhangjiagang
TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department
of Orthopedics, Zhangjiagang TCM Hospital
Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
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22
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Bae S, Kim K, Kang K, Kim H, Lee M, Oh B, Kaneko K, Ma S, Choi JH, Kwak H, Lee EY, Park SH, Park-Min KH. RANKL-responsive epigenetic mechanism reprograms macrophages into bone-resorbing osteoclasts. Cell Mol Immunol 2023; 20:94-109. [PMID: 36513810 PMCID: PMC9794822 DOI: 10.1038/s41423-022-00959-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 11/03/2022] [Indexed: 12/15/2022] Open
Abstract
Monocyte/macrophage lineage cells are highly plastic and can differentiate into various cells under different environmental stimuli. Bone-resorbing osteoclasts are derived from the monocyte/macrophage lineage in response to receptor activator of NF-κB ligand (RANKL). However, the epigenetic signature contributing to the fate commitment of monocyte/macrophage lineage differentiation into human osteoclasts is largely unknown. In this study, we identified RANKL-responsive human osteoclast-specific superenhancers (SEs) and SE-associated enhancer RNAs (SE-eRNAs) by integrating data obtained from ChIP-seq, ATAC-seq, nuclear RNA-seq and PRO-seq analyses. RANKL induced the formation of 200 SEs, which are large clusters of enhancers, while suppressing 148 SEs in macrophages. RANKL-responsive SEs were strongly correlated with genes in the osteoclastogenic program and were selectively increased in human osteoclasts but marginally presented in osteoblasts, CD4+ T cells, and CD34+ cells. In addition to the major transcription factors identified in osteoclasts, we found that BATF binding motifs were highly enriched in RANKL-responsive SEs. The depletion of BATF1/3 inhibited RANKL-induced osteoclast differentiation. Furthermore, we found increased chromatin accessibility in SE regions, where RNA polymerase II was significantly recruited to induce the extragenic transcription of SE-eRNAs, in human osteoclasts. Knocking down SE-eRNAs in the vicinity of the NFATc1 gene diminished the expression of NFATc1, a major regulator of osteoclasts, and osteoclast differentiation. Inhibiting BET proteins suppressed the formation of some RANKL-responsive SEs and NFATc1-associated SEs, and the expression of SE-eRNA:NFATc1. Moreover, SE-eRNA:NFATc1 was highly expressed in the synovial macrophages of rheumatoid arthritis patients exhibiting high-osteoclastogenic potential. Our genome-wide analysis revealed RANKL-inducible SEs and SE-eRNAs as osteoclast-specific signatures, which may contribute to the development of osteoclast-specific therapeutic interventions.
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Affiliation(s)
- Seyeon Bae
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Kibyeong Kim
- Department of Biological Science, Ulsan National Institute of Science & Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Life Science, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Korea
| | - Keunsoo Kang
- Department of Microbiology, Dankook University, Cheonan, 3116, Republic of Korea
| | - Haemin Kim
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Minjoon Lee
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Brian Oh
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Kaichi Kaneko
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA
| | - Sungkook Ma
- Department of Biological Science, Ulsan National Institute of Science & Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jae Hoon Choi
- Department of Life Science, College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Korea
| | - Hojoong Kwak
- Department of Molecular Biology and Genetics, Cornell University, Ithaca, USA
| | - Eun Young Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
| | - Sung Ho Park
- Department of Biological Science, Ulsan National Institute of Science & Technology (UNIST), Ulsan, 44919, Republic of Korea.
| | - Kyung-Hyun Park-Min
- Arthritis and Tissue Degeneration Program, David Z. Rosensweig Genomics Research Center, Hospital for Special Surgery, New York, NY, 10021, USA.
- Department of Medicine, Weill Cornell Medical College, New York, NY, 10065, USA.
- BCMB Allied Program, Weill Cornell Graduate School of Medical Sciences, New York, NY, 10021, USA.
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23
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Zhang Y, Liang J, Liu P, Wang Q, Liu L, Zhao H. The RANK/RANKL/OPG system and tumor bone metastasis: Potential mechanisms and therapeutic strategies. Front Endocrinol (Lausanne) 2022; 13:1063815. [PMID: 36589815 PMCID: PMC9800780 DOI: 10.3389/fendo.2022.1063815] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022] Open
Abstract
With the markedly increased diagnosis and incidence of cancer in the population, tumor bone metastasis has become a frequent event in tumor patients. Healthy bone integrity is maintained by a delicate balance between bone formation and bone resorption. Unfortunately, many tumors, such as prostate and breast, often metastasize to the bone, and the alterations to the bone homeostasis can particularly favor tumor homing and consequent osteolytic or osteoblastic lesions. Receptor activator of NF-κB ligand (RANKL), its receptor RANK, and osteoprotegerin (OPG) are involved in the regulation of the activation, differentiation, and survival of osteoclasts, which play critical roles in bone metastasis formation. High rates of osteoclastic bone resorption significantly increase fracture risk, cause severe bone pain, and contribute to homing tumor cells in bone and bone marrow. Consequently, suppression of the RANK/RANKL/OPG system and osteoclastic activity can not only ameliorate bone resorption but may also prevent tumor bone metastases. This review summarizes the important role of the RANK/RANKL/OPG system and osteoclasts in bone homeostasis and its effect on tumor bone metastasis and discusses therapeutic strategies based on RANKL inhibition.
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Affiliation(s)
| | | | | | | | | | - Hongmou Zhao
- Department of Foot and Ankle Surgery, Honghui Hospital of Xi’an Jiaotong University, Xi’an, China
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24
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Abstract
Osteopetrosis (OPT) is a rare inherited bone disease characterized by a bone resorption defect, due to osteoclast malfunction (in osteoclast-rich, oc-rich, OPT forms) or absence (in oc-poor OPT forms). This causes severe clinical abnormalities, including increased bone density, lack of bone marrow cavity, stunted growth, macrocephaly, progressive deafness, blindness, hepatosplenomegaly, and severe anemia. The oc-poor subtype of OPT is ultra-rare in humans. It is caused by mutations in either the tumor necrosis factor ligand superfamily member 11 (TNFSF11) gene, encoding RANKL (Receptor Activator of Nuclear factor-kappa B [NF-κB] Ligand) which is expressed on cells of mesenchymal origin and lymphocytes, or the TNFRSF member 11A (TNFRSF11A) gene, encoding the RANKL functional receptor RANK which is expressed on cells of myeloid lineage including osteoclasts. Clinical presentation is usually severe with onset in early infancy or in fetal life, although as more patients are reported, expressivity is variable. Phenotypic variability of RANK-deficient OPT sometimes includes hypogammaglobulinemia or radiological features of dysosteosclerosis. Disease progression is somewhat slower in RANKL-deficient OPT than in other 'malignant' subtypes of OPT. While both RANKL and RANK are essential for normal bone turnover, hematopoietic stem cell transplantation (HSCT) is the treatment of choice only for patients with the RANK-deficient form of oc-poor OPT. So far, there is no cure for RANKL-deficient OPT.
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Affiliation(s)
- Cristina Sobacchi
- CNR-IRGB, Milan Unit, via Fantoli 16/15, 20138 Milan, Italy; Humanitas Research Hospital, via Manzoni 56, 20089 Rozzano, MI, Italy.
| | - Mario Abinun
- Paediatric Haematopoietic Stem Cell Transplant Unit, Great North Children's Hospital, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne NE1 4LP, UK; Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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25
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Wang M, Liu J, Zhu G, Chen X. Low levels of cadmium exposure affect bone by inhibiting Lgr4 expression in osteoblasts and osteoclasts. J Trace Elem Med Biol 2022; 73:127025. [PMID: 35772369 DOI: 10.1016/j.jtemb.2022.127025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/03/2022] [Accepted: 06/18/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND Cadmium exposure is associated with bone loss. However, the mechanisms involved have not yet been fully understood. Leucine-rich repeat containing GPCR-4 (LGR4) can bind with the receptor activator of nuclear factors κB ligand (RANKL) and inhibit osteoclast formation. In addition, Lgr4 plays an important role in maintaining osteoblast activity. In the present study the effect of cadmium exposure on bone was investigated in terms of Lgr4 expression. METHODS Raw 264.7 cells and primary osteoblasts were exposed to cadmium (0-60 nM/L). The effects of cadmium on osteoclast formation and osteoblast activity were investigated. Osteoclast differentiation-related (Traf6, NFATc1) and osteoblast-related (RANKL; osteoprotegerin, OPG) gene and protein expression were determined. Lgr4 expression in osteoclasts and osteoblasts were also determined. A rat model was established to show the effects of cadmium (50 mg/L) on bone loss and Lgr4 expression in vivo. RESULTS Cadmium exposure inhibited osteoblast activities and stimulated osteoclast formation. Cadmium exposure also inhibited Lgr4 expression in both osteoclasts and osteoblasts. Low dose of RANKL added to the culture medium could promote osteoclast formation in cadmium-pretreated RAW264.7 cells. Blocking Lgr4 in osteoclasts only slightly inhibited cadmium-induced osteoclast formation in cadmium-pretreated RAW264.7 cells. Cadmium significantly upregulated the AKT/ERK signaling pathway. An in vivo study showed that cadmium exposure promoted osteoclast formation and inhibited Lgr4 expression. CONCLUSIONS Our data indicates that cadmium may induce bone loss by inhibiting Lgr4-related bone formation and promoting Lgr4-related osteoclast formation.
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Affiliation(s)
- Miaomiao Wang
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Jingjing Liu
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Guoying Zhu
- Institute of Radiation Medicine, Fudan University, 2094 Xietu road, Shanghai 200032, China
| | - Xiao Chen
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China; Institute of Radiation Medicine, Fudan University, 2094 Xietu road, Shanghai 200032, China.
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Nair S, Bhadricha H, Patil A, Surve S, Joshi B, Balasinor N, Desai M. Association of OPG and RANKL gene polymorphisms with bone mineral density in Indian women. Gene 2022; 840:146746. [PMID: 35868414 DOI: 10.1016/j.gene.2022.146746] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/01/2022] [Accepted: 07/14/2022] [Indexed: 11/18/2022]
Abstract
Osteoprotegerin (OPG) and receptor activator of the NF-kB ligand (RANKL) are key players in bone remodelling. Reports show that OPG and RANKL gene polymorphisms are associated with osteoporosis and fracture risk. The aim of this study was to examine the influence of 5 single nucleotide polymorphisms (SNPs) in OPG and RANKL gene on bone mineral density (BMD) in Indian women. The study included 374 healthy Indian women. Kompetitive Allele Specific PCR (KASP) was used for genotyping. There was a significant difference in the BMD at spine between genotypes of OPG rs2073618 (CC: 0.988 ± 0.167 CG: 1.023 ± 0.17 GG: 1.053 ± 0.155; p = 0.039) which was lost upon adjustment for age and BMI (p = 0.087). Multiple linear regression revealed that genotypes of OPG rs2073618 (β = 0.098; p = 0.027) and rs3102735 (β = 0.092; p = 0.038) are predictors of BMD at spine in Indian women. We did not observe any association of SNPs in RANKL gene with BMD. Thus, SNPs rs2073618 and rs3102735 in OPG gene may influence BMD at spine in Indian women.
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Affiliation(s)
- Sandhya Nair
- Molecular Immunodiagnostics Division, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Hetal Bhadricha
- Molecular Immunodiagnostics Division, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Anushree Patil
- Department of Clinical Research, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Suchitra Surve
- Department of Clinical Research, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Beena Joshi
- Department of Operational Research, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Nafisa Balasinor
- Neuroendocrinology Division, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India
| | - Meena Desai
- Molecular Immunodiagnostics Division, ICMR-National Institute for Research in Reproductive and Child Health, Jehangir Merwanji Street, Parel, Mumbai 400 012, India.
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Cho E, Cheon S, Ding M, Lim K, Park SW, Park C, Lee TH. Identification of Novel Genes for Cell Fusion during Osteoclast Formation. Int J Mol Sci 2022; 23:ijms23126421. [PMID: 35742859 PMCID: PMC9224196 DOI: 10.3390/ijms23126421] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 12/04/2022] Open
Abstract
Osteoclasts are derived from hematopoietic stem cells. Monocyte preosteoclasts obtain resorbing activity via cell–cell fusion to generate multinucleated cells. However, the mechanisms and molecules involved in the fusion process are poorly understood. In this study, we performed RNA sequencing with single nucleated cells (SNCs) and multinucleated cells (MNCs) to identify the fusion-specific genes. The SNCs and MNCs were isolated under the same conditions during osteoclastogenesis with the receptor activator of nuclear factor-κB ligand (RANKL) administration. Based on this analysis, the expression of seven genes was found to be significantly increased in MNCs but decreased in SNCs, compared to that in bone marrow-derived macrophages (BMMs). We then generated knockout macrophage cell lines using a CRISPR-Cas9 genome-editing tool to examine their function during osteoclastogenesis. Calcrl-, Marco-, or Ube3a-deficient cells could not develop multinucleated giant osteoclasts upon RANKL stimulation. However, Tmem26-deficient cells fused more efficiently than control cells. Our findings demonstrate that Calcrl, Marco, and Ube3a are novel determinants of osteoclastogenesis, especially with respect to cell fusion, and highlight potential targets for osteoporosis therapy.
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Affiliation(s)
- Eunjin Cho
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
| | - Seongmin Cheon
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea; (S.C.); (C.P.)
- Proteomics Core Facility, Biomedical Research Institute, Seoul National University Hospital, Seoul 03080, Korea
| | - Mina Ding
- Biomedical Sciences Graduate Program, School of Medical, Chonnam National University, Gwangju 61186, Korea;
| | - Kayeong Lim
- Center for Genome Engineering, Institute for Basic Science, Daejeon 34126, Korea;
| | - Sang-Wook Park
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
| | - Chungoo Park
- School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Korea; (S.C.); (C.P.)
| | - Tae-Hoon Lee
- Department of Oral Biochemistry, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju 61186, Korea; (E.C.); (S.-W.P.)
- Correspondence:
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QIN L, GUO C, ZHAO R, WANG T, WANG J, GUO Y, ZHANG W, HU T, CHEN X, ZHANG Q, ZHANG D, XU Y. Acupotomy inhibits aberrant formation of subchondral bone through regulating osteoprotegerin/receptor activator of nuclear factor-κB ligand pathway in rabbits with knee osteoarthritis induced by modified Videman method. J TRADIT CHIN MED 2022; 42:389-399. [PMID: 35610008 PMCID: PMC9924767 DOI: 10.19852/j.cnki.jtcm.2022.03.006] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
OBJECTIVE To investigate the effects of acupotomy on inhibiting abnormal formation of subchondral bone in rabbits with knee osteoarthritis (KOA). METHODS A total of 24 New Zealand rabbits were randomly divided into four groups of 6 rabbits each [control, model, electroacupuncture (EA) and acupotomy]. Eighteen KOA model rabbits were established using a modified Videman method. Rabbits in EA and acupotomy groups received the intervention for 3 weeks. Then, the cartilage and subchondral bone unit were obtained and the histomorphological changes were recorded. Osteo-protegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) in subchondral bone were evaluated by Western blotting, real-time polymerase chain reaction and immunohistochemistry. RESULTS Compared with the model group, both the acupotomy and EA groups showed a significant decrease in the Lequesne index (both 0.01) and Mankin score ( 0.01, < 0.05). In addition, both EA and acupotomy groups had a higher expression of total articular cartilage (TAC) ( 0.05, < 0.01) and lower expression of articular calcified cartilage (ACC)/TAC ( 0.05, < 0.05) compared with the model group. The thickness of the subchondral bone plate in EA and acupotomy groups were decreased (both 0.01) compared to the model group. Moreover, trabecular bone volume (BV/TV), protein and relative expression of OPG and the ratio of OPG/RANKL in the subchondral bone of acupotomy group were decreased statistically significant, while these parameters were not significantly changed in the EA group compared with the model group. CONCLUSIONS In the rabbit model of KOA, acupotomy inhibits aberrant formation of subchondral bone by suppressing OPG/RANKL ratio as a potential therapy for KOA.
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Affiliation(s)
- Luxue QIN
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Changqing GUO
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
- Prof. GUO Changqing, School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China. ,Telephone: +86-10-64286687
| | - Ruili ZHAO
- 2 the First People's Hospital of Dongcheng District, Beijing 100050, China
| | - Tong WANG
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Junmei WANG
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yan GUO
- 3 Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing 100010, China
| | - Wei ZHANG
- 4 the Third Affiliated Hospital of Beijing Universality of Chinese Medicine, Beijing 100029, China
| | - Tingyao HU
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Xilin CHEN
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Qian ZHANG
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Dian ZHANG
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yue XU
- 1 School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China
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Liu X, Diao L, Zhang Y, Yang X, Zhou J, Mao Y, Shi X, Zhao F, Liu M. Piperlongumine Inhibits Titanium Particles-Induced Osteolysis, Osteoclast Formation, and RANKL-Induced Signaling Pathways. Int J Mol Sci 2022; 23:2868. [PMID: 35270008 PMCID: PMC8911227 DOI: 10.3390/ijms23052868] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 02/26/2022] [Accepted: 02/26/2022] [Indexed: 11/21/2022] Open
Abstract
Wear particle-induced aseptic loosening is the most common complication of total joint arthroplasty (TJA). Excessive osteoclast formation and bone resorptive activation have been considered to be responsible for extensive bone destruction and prosthesis failure. Therefore, identification of anti-osteoclastogenesis agents is a potential therapy strategy for the treatment of aseptic loosening and other osteoclast-related osteolysis diseases. In the present study, we reported, for the first time, that piperlongumine (PL), a key alkaloid compound from Piper longum fruits, could significantly suppress the formation and activation of osteoclasts. Furthermore, PL effectively decreased the mRNA expressions of osteoclastic marker genes such as tartrate-resistant acid phosphatase (TRAP), calcitonin receptor (CTR), and cathepsin K (CTSK). In addition, PL suppressed the receptor activator of nuclear factor-κB ligand (RANKL)-induced activations of MAPKs (ERK, JNK and p38) and NF-κB, which down-regulated the protein expression of nuclear factor of activated T-cells cytoplasmic 1 (NFATc1). Using a titanium (Ti) particle-induced calvarial osteolysis model, we demonstrated that PL could ameliorate Ti particle-induced bone loss in vivo. These data provide strong evidence that PL has the potential to treat osteoclast-related diseases including periprosthetic osteolysis (PPO) and aseptic loosening.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Mei Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; (X.L.); (L.D.); (Y.Z.); (X.Y.); (J.Z.); (Y.M.); (X.S.); (F.Z.)
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30
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Ning R, Mu H, Chen L, Wang T, Xu X, He S, Jiang M, Zhao W. First Report on Inhibitory Effect against Osteoclastogenesis of Dihydro-β-agarofuran-Type Sesquiterpenoids. J Agric Food Chem 2022; 70:554-566. [PMID: 35007076 DOI: 10.1021/acs.jafc.1c06862] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Dihydro-β-agarofuran-type sesquiterpenoids are characteristic metabolites of Celastraceae plants, and the extracts of these plants have been developed into botanical pesticides. In the course of our efforts to find novel natural biologically active products, eight new dihydro-β-agarofuran-type sesquiterpenoids (1-8) were identified from the stems of Celastrus monospermus Roxb. Their structures were elucidated by extensive spectroscopic analysis, single crystal X-ray crystallography, and electronic circular dichroism (ECD) calculations. In consideration of the efficacy of certain Celastrus plants for the treatment of arthritis and arthralgia in folk medicine, the isolates were evaluated for their inhibitory activities against osteoclastogenesis. As a result, compounds 4, 6, and 7 were found to restrain osteoclastogenesis induced by receptor activator of nuclear factor-κB ligand (RANKL) with IC50 values of 0.58, 1.2, and 6.1 μM, respectively. Furthermore, compound 4 was found to inhibit osteoclastogenesis-related gene (c-Fos, MMP-9, CTSK, TRAP) expression and block c-Fos protein expression and inhibited bone resorption of mature osteoclasts induced by M-CSF and RANKL in a dose dependent manner. This is the first report of dihydro-β-agarofuran-type sesquiterpenoid for their potential medical applications in bone metabolic diseases.
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Affiliation(s)
- Ruonan Ning
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, People's Republic of China
- School of Pharmacy, Shanghai University of Medicine & Health Sciences, Shanghai 201318, People's Republic of China
| | - Hongyan Mu
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
| | - Li Chen
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Tianqi Wang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, People's Republic of China
| | - Xing Xu
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, People's Republic of China
| | - Shijun He
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
- Laboratory of Immunopharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Min Jiang
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai 200025, People's Republic of China
| | - Weimin Zhao
- Natural Product Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China
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Shim KS, Gu DR, Hwang YH, Yang H, Ryuk JA, Ha H. Water Extract of Fritillariae thunbergii Bulbus Inhibits RANKL-Mediated Osteoclastogenesis and Ovariectomy-Induced Trabecular Bone Loss. Molecules 2021; 27:molecules27010169. [PMID: 35011398 PMCID: PMC8746409 DOI: 10.3390/molecules27010169] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/20/2021] [Accepted: 12/24/2021] [Indexed: 12/03/2022] Open
Abstract
Fritillariae thunbergii bulbus has been widely used to treat symptoms of coughs and airway congestion in the chest due to pathological colds and damp phlegm in traditional Chinese medicine. Despite its long history of traditional use, its pharmacological activities on osteoclastogenesis and osteoporosis have not been evaluated. This study investigated the effects of the water extract of Fritillariae thunbergii bulbus (WEFT) on osteoclast differentiation in bone marrow-derived macrophage cells and on ovariectomy (OVX)-induced osteoporosis in mice. We found that WEFT significantly inhibited osteoclastogenesis by downregulating the receptor activator of the NF-κB ligand (RANKL) signaling-induced nuclear factor of activated T-cells cytoplasmic 1 (NFATc1) expression. In an OVX-induced osteoporosis model, WEFT significantly prevented the OVX-induced trabecular loss of femurs, accompanied by a reduction in fat accumulation in the bone marrow and liver. In addition, WEFT significantly prevented weight gain and gonadal fat gain without recovering uterine atrophy. Using ultrahigh-performance liquid chromatography-tandem mass spectrometry, seven alkaloids (peimisine glucoside, yibeissine, peiminoside, sipeimine-glucoside, peimisine, peimine, and peiminine) were identified in WEFT. The results of this study suggest that WEFT can be a potential pharmacological candidate to reduce menopausal osteoporosis and menopause-related symptoms, such as fat accumulation.
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Affiliation(s)
- Ki-Shuk Shim
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Dong-Ryun Gu
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Youn-Hwan Hwang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
- Korean Convergence Medicine Major KIOM, University of Science & Technology (UST), Daejeon 34054, Korea
| | - Hyun Yang
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Jin-Ah Ryuk
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
| | - Hyunil Ha
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, Yuseong-daero 1672, Daejeon 34054, Korea; (K.-S.S.); (D.-R.G.); (Y.-H.H.); (H.Y.); (J.-A.R.)
- Correspondence: ; Tel.: +82-42-868-9367
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Mae M, Alam MI, Yamashita Y, Ozaki Y, Higuchi K, Ziauddin SM, Montenegro Raudales JL, Sakai E, Tsukuba T, Yoshimura A. The Role of Cytokines Produced via the NLRP3 Inflammasome in Mouse Macrophages Stimulated with Dental Calculus in Osteoclastogenesis. Int J Mol Sci 2021; 22:ijms222212434. [PMID: 34830316 PMCID: PMC8618367 DOI: 10.3390/ijms222212434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 11/09/2021] [Accepted: 11/16/2021] [Indexed: 12/12/2022] Open
Abstract
Dental calculus (DC) is a common deposit in periodontitis patients. We have previously shown that DC contains both microbial components and calcium phosphate crystals that induce an osteoclastogenic cytokine IL-1β via the NLRP3 inflammasome in macrophages. In this study, we examined the effects of cytokines produced by mouse macrophages stimulated with DC on osteoclastogenesis. The culture supernatants from wild-type (WT) mouse macrophages stimulated with DC accelerated osteoclastogenesis in RANKL-primed mouse bone marrow macrophages (BMMs), but inhibited osteoclastogenesis in RANKL-primed RAW-D cells. WT, but not NLRP3-deficient, mouse macrophages stimulated with DC produced IL-1β and IL-18 in a dose-dependent manner, indicating the NLRP3 inflammasome-dependent production of IL-1β and IL-18. Both WT and NLRP3-deficient mouse macrophages stimulated with DC produced IL-10, indicating the NLRP3 inflammasome-independent production of IL-10. Recombinant IL-1β accelerated osteoclastogenesis in both RANKL-primed BMMs and RAW-D cells, whereas recombinant IL-18 and IL-10 inhibited osteoclastogenesis. These results indicate that DC induces osteoclastogenic IL-1β in an NLRP3 inflammasome-dependent manner and anti-osteogenic IL-18 and IL-10 dependently and independently of the NLRP3 inflammasome, respectively. DC may promote alveolar bone resorption via IL-1β induction in periodontitis patients, but suppress resorption via IL-18 and IL-10 induction in some circumstances.
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Affiliation(s)
- Megumi Mae
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
| | - Mohammad Ibtehaz Alam
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
| | - Yasunori Yamashita
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
| | - Yukio Ozaki
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
| | - Kanako Higuchi
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
| | - S. M. Ziauddin
- National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu City 474-8511, Japan;
| | - Jorge Luis Montenegro Raudales
- Department of Oral Anatomy, School of Dentistry, Aichi Gakuin University, 1-100, Kusumoto-cho, Chikusa-ku, Nagoya 464-0851, Japan;
| | - Eiko Sakai
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (E.S.); (T.T.)
| | - Takayuki Tsukuba
- Department of Dental Pharmacology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (E.S.); (T.T.)
| | - Atsutoshi Yoshimura
- Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki 852-8588, Japan; (M.M.); (M.I.A.); (Y.Y.); (Y.O.); (K.H.)
- Correspondence: ; Tel.: +81-95-819-7681
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Ha MT, Tran PT, Tran HNK, Kim O, Kim JA, Lee JH, Min BS. Anti-osteoclastogenic Effects of Indole Alkaloids Isolated from Barley ( Hordeum vulgare Var. Hexastichon) Grass. J Agric Food Chem 2021; 69:12994-13005. [PMID: 34694780 DOI: 10.1021/acs.jafc.1c04337] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As part of our continuous program to identify new potential candidates for controlling osteolytic bone diseases from natural products, the alkaloid fraction of barley (Hordeum vulgare var. hexastichon) grass (HVA) significantly inhibited RANKL-induced osteoclast formation and protected mice from LPS-induced bone loss. A phytochemical investigation of HVA afforded nine indole alkaloids, including one new compound [hordeumin A (1)] and eight known analogues (2-9). Of them, four (1, 2, 4, and 5) were anti-osteoclastogenic compounds. Of these four, compound 5 significantly suppressed RANKL-induced osteoclast formation, actin ring formation, and bone resorption in a concentration-dependent manner. It also suppressed the RANKL-induced NF-κB and MAPK signaling pathways and the activation of c-Fos and NFATc1. Compound 5 also reduced the expression levels of osteoclast-specific marker genes, including TRAP, CtsK, DC-STAMP, OSCAR, and MMP9. Our findings suggest that HVA and its alkaloid constituents could be valuable candidates for the prevention and treatment of osteolytic bone diseases.
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Affiliation(s)
- Manh Tuan Ha
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Phuong Thao Tran
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 24341, Republic of Korea
| | - Huynh Nguyen Khanh Tran
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Okwha Kim
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 24341, Republic of Korea
| | - Jeong Ah Kim
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jeong-Hyung Lee
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-Do 24341, Republic of Korea
| | - Byung Sun Min
- College of Pharmacy, Drug Research and Development Center, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
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Remmers SJA, de Wildt BWM, Vis MAM, Spaander ESR, de Vries RBM, Ito K, Hofmann S. Osteoblast-osteoclast co-cultures: A systematic review and map of available literature. PLoS One 2021; 16:e0257724. [PMID: 34735456 PMCID: PMC8568160 DOI: 10.1371/journal.pone.0257724] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 10/21/2021] [Indexed: 01/22/2023] Open
Abstract
Drug research with animal models is expensive, time-consuming and translation to clinical trials is often poor, resulting in a desire to replace, reduce, and refine the use of animal models. One approach to replace and reduce the use of animal models is to use in vitro cell-culture models. To study bone physiology, bone diseases and drugs, many studies have been published using osteoblast-osteoclast co-cultures. The use of osteoblast-osteoclast co-cultures is usually not clearly mentioned in the title and abstract, making it difficult to identify these studies without a systematic search and thorough review. As a result, researchers are all developing their own methods, leading to conceptually similar studies with many methodological differences and, as a consequence, incomparable results. The aim of this study was to systematically review existing osteoblast-osteoclast co-culture studies published up to 6 January 2020, and to give an overview of their methods, predetermined outcome measures (formation and resorption, and ALP and TRAP quantification as surrogate markers for formation and resorption, respectively), and other useful parameters for analysis. Information regarding these outcome measures was extracted and collected in a database, and each study was further evaluated on whether both the osteoblasts and osteoclasts were analyzed using relevant outcome measures. From these studies, additional details on methods, cells and culture conditions were extracted into a second database to allow searching on more characteristics. The two databases presented in this publication provide an unprecedented amount of information on cells, culture conditions and analytical techniques for using and studying osteoblast-osteoclast co-cultures. They allow researchers to identify publications relevant to their specific needs and allow easy validation and comparison with existing literature. Finally, we provide the information and tools necessary for others to use, manipulate and expand the databases for their needs.
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Affiliation(s)
- Stefan J. A. Remmers
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Bregje W. M. de Wildt
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Michelle A. M. Vis
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Eva S. R. Spaander
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Rob B. M. de Vries
- Department for Health Evidence, SYRCLE, Radboud Institute for Health Sciences, Radboudumc, Nijmegen, The Netherlands
| | - Keita Ito
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Sandra Hofmann
- Department of Biomedical Engineering and the Institute of Complex Molecular Systems, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
- * E-mail:
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Farrokhian A, Miraftab M, Chenari M, Akbari H, Nikoueinejad H, Naimi E. The Relationship between Serum and Gene Expression Levels of RANK, RANKL and Osteoprotegerin Inflammatory Pathway with Unstable Angina: A Case-control Study. Iran J Allergy Asthma Immunol 2021; 20:473-483. [PMID: 34418901] [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] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 02/07/2021] [Indexed: 06/13/2023]
Abstract
Osteoprotegerin (OPG), receptor activator of nuclear factor-kappa B (RANK) and receptor activator of nuclear factor-kappa B ligand (RANKL), the members of the tumor necrosis factor (TNF) family, have multiple effects on bone metabolism, endocrine functions and, as an inflammatory pathway, in the immune system. This study tried to determine the association of the OPG/RANKL/RANK axis with the severity of unstable angina (UA) as an inflammatory condition. Our study involved 50 patients with UA and 50 healthy people. Serum and peripheral blood mononuclear cells were isolated from all participants. Serum levels and gene expression of OPG, RANKL, and RANK in mononuclear cells were measured by enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction (RT-PCR), respectively. For each patient with UA, the thrombolysis in myocardial infarction (TIMI) and the global registry of acute coronary events (GRACE) scores were determined to evaluate the severity of the disease. Then we analyzed the relation of OPG, RANKL, and RANK levels with TIMI and GRACE scores in patients with UA. Discriminate analysis was used to predict the combinational models of such factors on the prediction of UA. Serum levels of OPG and RANKL (p<0.001) and gene expression of RANKL (p<0.001) were significantly more in patients than those in healthy ones. No relation was seen between the OPG/RANKL/RANK axis and the severity of UA according to TIMI and GRACE scores. Our study shows that serum level, as well as gene expression of OPG/RANKL/RANK axis neither, predicts the occurrence of UA nor shows any relationship with its severity.
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Affiliation(s)
- Alireza Farrokhian
- Department of Cardiology, Kashan University of Medical Sciences, Kashan, Iran.
| | - Mahtab Miraftab
- Students' research center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Minoo Chenari
- Students' research center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hossein Akbari
- Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran.
| | - Hassan Nikoueinejad
- Nephrology and Urology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
| | - Effat Naimi
- Chemical Injuries Research Center, System Biology and Poisoning Institute, Baqiyatallah University of Medical Sciences.
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Ihn HJ, Lim J, Kim K, Nam SH, Lim S, Lee SJ, Bae JS, Kim TH, Kim JE, Baek MC, Bae YC, Park EK. Protective Effect of Ciclopirox against Ovariectomy-Induced Bone Loss in Mice by Suppressing Osteoclast Formation and Function. Int J Mol Sci 2021; 22:ijms22158299. [PMID: 34361069 PMCID: PMC8348120 DOI: 10.3390/ijms22158299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 12/30/2022] Open
Abstract
Postmenopausal osteoporosis is closely associated with excessive osteoclast formation and function, resulting in the loss of bone mass. Osteoclast-targeting agents have been developed to manage this disease. We examined the effects of ciclopirox on osteoclast differentiation and bone resorption in vitro and in vivo. Ciclopirox significantly inhibited osteoclast formation from primary murine bone marrow macrophages (BMMs) in response to receptor activator of nuclear factor kappa B ligand (RANKL), and the expression of genes associated with osteoclastogenesis and function was decreased. The formation of actin rings and resorption pits was suppressed by ciclopirox. Analysis of RANKL-mediated early signaling events in BMMs revealed that ciclopirox attenuates IκBα phosphorylation without affecting mitogen-activated protein kinase activation. Furthermore, the administration of ciclopirox suppressed osteoclast formation and bone loss in ovariectomy-induced osteoporosis in mice and reduced serum levels of osteocalcin and C-terminal telopeptide fragment of type I collagen C-terminus. These results indicate that ciclopirox exhibits antiosteoclastogenic activity both in vitro and in vivo and represents a new candidate compound for protection against osteoporosis and other osteoclast-related bone diseases.
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Affiliation(s)
- Hye Jung Ihn
- Cell and Matrix Research Institute, Kyungpook National University, Daegu 41944, Korea;
| | - Jiwon Lim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
| | - Kiryeong Kim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
| | - Sang-Hyeon Nam
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
| | - Soomin Lim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
| | - Su Jeong Lee
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
| | - Jong-Sup Bae
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Kyungpook National University, Daegu 41566, Korea;
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan 38453, Korea;
| | - Jung-Eun Kim
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (J.-E.K.); (M.-C.B.)
| | - Moon-Chang Baek
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (J.-E.K.); (M.-C.B.)
| | - Yong Chul Bae
- Department of Oral Anatomy and Neurobiology, School of Dentistry, Kyungpook National University, Daegu 41940, Korea;
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Institute for Hard Tissue and Bio-tooth Regeneration (IHBR), Kyungpook National University, Daegu 41940, Korea; (J.L.); (K.K.); (S.-H.N.); (S.L.); (S.J.L.)
- Correspondence: ; Tel.: +82-53-420-4995
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Sun M, Cao Y, Yang X, An F, Wu H, Wang J. DNA methylation in the OPG/RANK/RANKL pathway is associated with steroid-induced osteonecrosis of the femoral head. BMC Musculoskelet Disord 2021; 22:599. [PMID: 34187427 PMCID: PMC8240366 DOI: 10.1186/s12891-021-04472-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 06/10/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Dysregulation of the OPG/RANK/RANKL signalling pathway is a key step in the occurrence of steroid-induced osteonecrosis of the femoral head (ONFH). This study aims to understand the degree of methylation of the OPG, RANK, and RANKL genes in steroid-related ONFH. METHODS A case-control study was designed, including 50 patients (25 males and 25 females) and 50 matched controls. The European Molecular Biology Open Software Suite (EMBOSS) was used to predict the existence and location of CpG islands in the OPG, RANK, and RANKL genes. The Agena MassARRAY platform was used to detect the methylation status of the above genes in the blood of subjects. The relationship between the methylation level of CpG sites in each gene and steroid-related ONFH was analysed by the chi-square test, logistic regression analysis, and other statistical methods. RESULTS In the CpG islands of the OPG, RANK, and RANKL genes in patients with steroid-related ONFH, several CpG sites with high methylation rates and high methylation levels were found. Some hypermethylated CpG sites increase the risk of steroid-related ONFH. In addition, a few hypermethylated CpG sites have predictive value for the early diagnosis of steroid-related ONFH. CONCLUSION Methylation of certain sites in the OPG/RANK/RANKL signalling pathway increases the risk of steroid-related ONFH. Some hypermethylated CpG sites may be used as early prediction and diagnostic targets for steroid-related ONFH.
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Affiliation(s)
- Menghu Sun
- Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
- Inner Mongolia Medical University, Hohhot, 010050, Inner Mongolia, China
| | - Yuju Cao
- Zhengzhou Traditional Chinese Medicine (TCM) Traumatology Hospital, Zhengzhou, 450016, Henan Province, China
| | - Xiaolong Yang
- Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China
| | - Feimeng An
- Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine, Hohhot, 010110, Inner Mongolia, China
| | - Huiqiang Wu
- Inner Mongolia Autonomous Region Hospital of Traditional Chinese Medicine, Hohhot, 010110, Inner Mongolia, China
| | - Jianzhong Wang
- Department of Orthopedics and Traumatology, The Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010030, Inner Mongolia, China.
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MacLeod RS, Meyer MB, Xiong J, Cawley KM, Liu Y, Onal M, Benkusky NA, Thostenson JD, Pike JW, O’Brien CA. Deletion of a putative promoter-proximal Tnfsf11 regulatory region in mice does not alter bone mass or Tnfsf11 expression in vivo. PLoS One 2021; 16:e0250974. [PMID: 33970941 PMCID: PMC8109787 DOI: 10.1371/journal.pone.0250974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/18/2021] [Indexed: 12/26/2022] Open
Abstract
The cytokine RANKL is essential for osteoclast formation during physiological and pathological bone resorption. RANKL also contributes to lymphocyte production, development of lymph nodes and mammary glands, as well as other biological activities. Transcriptional control of the Tnfsf11 gene, which encodes RANKL, is complex and involves distant regulatory regions. Nevertheless, cell culture studies suggest that an enhancer region near the transcription start site is involved in the control of Tnfsf11 expression by hormones such as 1,25-(OH)2 vitamin D3 and parathyroid hormone, as well as the sympathetic nervous system. To address the significance of this region in vivo, we deleted the sequence between -510 to -1413 bp, relative to Tnfsf11 exon 1, from mice using CRISPR-based gene editing. MicroCT analysis of the femur and fourth lumbar vertebra of enhancer knockout mice showed no differences in bone mass compared to wild type littermates at 5 weeks and 6 months of age, suggesting no changes in osteoclast formation. RNA extracted from the tibia, fifth lumbar vertebra, thymus, and spleen at 6 months of age also showed no reduction in Tnfsf11 mRNA abundance between these groups. However, maximal stimulation of Tnfsf11 mRNA abundance in cultured stromal cells by PTH was reduced approximately 40% by enhancer deletion, while stimulation by 1,25-(OH)2 vitamin D3 was unaffected. The abundance of B and T lymphocytes in the bone marrow did not differ between genotypes. These results demonstrate that the region between -510 and -1413 does not contribute to Tnfsf11 expression, osteoclast support, or lymphocyte production in mice under normal physiological conditions but may be involved in situations of elevated parathyroid hormone.
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Affiliation(s)
- Ryan S. MacLeod
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - Mark B. Meyer
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Jinhu Xiong
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - Keisha M. Cawley
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - Yu Liu
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - Melda Onal
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - Nancy A. Benkusky
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Jeff D. Thostenson
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
| | - J. Wesley Pike
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Charles A. O’Brien
- Center for Musculoskeletal Disease Research, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, United States of America
- Central Arkansas Veterans Healthcare System, Little Rock, AR, United States of America
- * E-mail:
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Kong L, Ma R, Cao Y, Smith W, Liu Y, Yang X, Yan L. Cell cytoskeleton and proliferation study for the RANKL-induced RAW264.7 differentiation. J Cell Mol Med 2021; 25:4649-4657. [PMID: 33742541 PMCID: PMC8107080 DOI: 10.1111/jcmm.16390] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 11/28/2020] [Accepted: 01/12/2021] [Indexed: 12/29/2022] Open
Abstract
Although document studies (including ours) have been reported the achieved in vitro osteoclastic cellular model establishment from the RAW264.7 cell lineage, there was no study directly reported that American Type Culture Collection (ATCC) cell bank has various RAW264.7 cell lineages. Besides that, for our knowledge there was only one study compared the two different RAW264.7TIB-71 and RAW264.7CRL-2278 cell lineages for their osteoclastic differentiation, and they concluded that the RAW264.7CRL-2278 demonstrated to generate much osteoclast than RAW264.7TIB-71 . However, on the contrary to their results we noticed the fusion of RAW264.7TIB-71 in our previous studies was much compromising. Therefore, we try to explore the two cell lineages for their properties in osteoclastic differentiation with an in-depth cellular cytoskeletal study. Our current study has showed that comparing to the RAW264.7CRL-2278 , RAW264.7TIB-71 demonstrated a much higher efficacies for RANKL-stimulated osteoclastic differentiation. Besides that, in our depth cytoskeletal studies, we found that the RANKL-induced RAW264.7TIB-71 cells could finally differentiate into mature osteoclasts. However, regardless the various pre-treatment conditions, there was no mature osteoclast formed in RANKL-induced RAW264.7CRL-2278 cell lineage.
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Affiliation(s)
- Lingbo Kong
- Department of Spine SurgerySchool of MedicineHonghui HospitalXi'an Jiaotong UniversityXi'anChina
| | - Rui Ma
- Department of AnesthesiologyXi'an Children HospitalXi'anChina
| | - Yang Cao
- Department of Spine SurgerySchool of MedicineHonghui HospitalXi'an Jiaotong UniversityXi'anChina
| | - Wanli Smith
- Department of Psychiatry and Behavioral SciencesJohns Hopkins UniversityBaltimoreMDUSA
| | - Yuan Liu
- Department of Spine SurgerySchool of MedicineHonghui HospitalXi'an Jiaotong UniversityXi'anChina
| | - Xiaobin Yang
- Department of Spine SurgerySchool of MedicineHonghui HospitalXi'an Jiaotong UniversityXi'anChina
| | - Liang Yan
- Department of Spine SurgerySchool of MedicineHonghui HospitalXi'an Jiaotong UniversityXi'anChina
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Blomberg Jensen M, Andreassen CH, Jørgensen A, Nielsen JE, Juel Mortensen L, Boisen IM, Schwarz P, Toppari J, Baron R, Lanske B, Juul A. RANKL regulates male reproductive function. Nat Commun 2021; 12:2450. [PMID: 33893301 PMCID: PMC8065035 DOI: 10.1038/s41467-021-22734-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/23/2021] [Indexed: 11/08/2022] Open
Abstract
Infertile men have few treatment options. Here, we demonstrate that the transmembrane receptor activator of NF-kB ligand (RANKL) signaling system is active in mouse and human testis. RANKL is highly expressed in Sertoli cells and signals through RANK, expressed in most germ cells, whereas the RANKL-inhibitor osteoprotegerin (OPG) is expressed in germ and peritubular cells. OPG treatment increases wild-type mouse sperm counts, and mice with global or Sertoli-specific genetic suppression of Rankl have increased male fertility and sperm counts. Moreover, RANKL levels in seminal fluid are high and distinguishes normal from infertile men with higher specificity than total sperm count. In infertile men, one dose of Denosumab decreases RANKL seminal fluid concentration and increases serum Inhibin-B and anti-Müllerian-hormone levels, but semen quality only in a subgroup. This translational study suggests that RANKL is a regulator of male reproductive function, however, predictive biomarkers for treatment-outcome requires further investigation in placebo-controlled studies.
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Affiliation(s)
- Martin Blomberg Jensen
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.
- Division of Bone and Mineral Research, HSDM/HMS, Harvard University, Boston, MA, USA.
| | - Christine Hjorth Andreassen
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anne Jørgensen
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - John Erik Nielsen
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Li Juel Mortensen
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Division of Bone and Mineral Research, HSDM/HMS, Harvard University, Boston, MA, USA
| | - Ida Marie Boisen
- Group of Skeletal, Mineral and Gonadal Endocrinology, Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Division of Bone and Mineral Research, HSDM/HMS, Harvard University, Boston, MA, USA
| | - Peter Schwarz
- Department of Endocrinology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jorma Toppari
- Institute of Biomedicine, Research Centre for Integrated Physiology and Pharmacology, and Centre for Population Health Research, University of Turku, and Department of Pediatrics, Turku University Hospital, Turku, Finland
| | - Roland Baron
- Division of Bone and Mineral Research, HSDM/HMS, Harvard University, Boston, MA, USA
| | - Beate Lanske
- Division of Bone and Mineral Research, HSDM/HMS, Harvard University, Boston, MA, USA
| | - Anders Juul
- Department of Growth and Reproduction and International Center for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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Pham CV, Pham TT, Lai TT, Trinh DC, Nguyen HVM, Ha TTM, Phuong TT, Tran LD, Winkler C, To TT. Icariin reduces bone loss in a Rankl-induced transgenic medaka (Oryzias latipes) model for osteoporosis. J Fish Biol 2021; 98:1039-1048. [PMID: 31858585 DOI: 10.1111/jfb.14241] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 12/18/2019] [Indexed: 06/10/2023]
Abstract
Given the limitations and side effects of many synthetic drugs, natural products are an important alternative source for drugs and medications for many diseases. Icariin (ICA), one of the main flavonoids from plants of the Epimedium genus, has been shown to ameliorate osteoporosis and improve bone health in preclinical studies. Those studies have used different in vivo models, mostly rodents, but the underlying mechanisms remain unclear. The present study shows, for the first time, that ICA reduces bone damage in a Rankl-induced medaka fish (Oryzias latipes), a non-rodent osteoporosis model. Live imaging was previously performed in this model to characterize antiresorptive and bone-anabolic properties of drugs. Here, a new quantification method (IM ) was established based on the length of mineralized neural arches to quantify levels of bone mineralization damage and protection in early post-embryonic fish. This method was validated by quantification of three levels of bone damage in three independent Rankl fish lines, and by the determination of different degrees of severity of osteoporosis-like phenotypes in one Rankl line exposed to variable Rankl induction schemes. IM was also used to quantify the efficacy of alendronate and etidronate, two common anti-osteoporotic bisphosphonates, and revealed comparable bone protective effects for ICA and alendronate in this fish osteoporosis model. This study's data support the value of the medaka fish model for bone research and establish a method to screen for novel osteoprotective compounds.
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Affiliation(s)
- Cuong V Pham
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thanh T Pham
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thuy T Lai
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Dat C Trinh
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Huong V M Nguyen
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Tam T M Ha
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
| | - Thuong T Phuong
- Department of Herbal Analysis and Standardization, Vietnam National Institute of Medicinal Materials, Hanoi, Vietnam
| | - Long D Tran
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
- The Key Laboratory of Enzyme and Protein Technology, VNU University of Science, Hanoi, Vietnam
| | - Christoph Winkler
- Department of Biological Sciences and Centre for Bioimaging Sciences, National University of Singapore, Singapore
| | - Thuy T To
- Faculty of Biology, VNU University of Science, Vietnam National University, Hanoi, Vietnam
- The Key Laboratory of Enzyme and Protein Technology, VNU University of Science, Hanoi, Vietnam
- Dinh Tien Hoang Institute of Medicine, Hanoi, Vietnam
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Su X, Zhuang D, Zhang Y, Lv H, Wang Y, Luan X, Bi L. Influence of photodynamic therapy on the periodontitis-induced bone resorption in rat. Lasers Med Sci 2021; 36:675-680. [PMID: 32808146 DOI: 10.1007/s10103-020-03126-8] [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: 04/10/2020] [Accepted: 08/10/2020] [Indexed: 11/29/2022]
Abstract
This study aimed to evaluate the effects of toluidine blue-mediated photodynamic therapy (TB-PDT) on the periodontitis-induced bone resorption in periodontitis in rats. Periodontal disease was induced by cotton ligature around the right second maxillary molar in 64 rats. After 4 weeks, the rats were randomly divided into four groups: sterile saline solution (control group); laser therapy (laser group); TB (100 μg/mL); TB plus laser (0.15 W/cm2) irradiation every other day for 240 s (PDT group). All rats were euthanized at 15 days postoperatively. Eight gingival tissue samples were collected from each group. The expressions of receptor activator of nuclear factor kappa-Β ligand (RANKL) and osteoprotegerin (OPG) in gingival tissue samples were detected by real-time quantitative polymerase chain reaction (RT-qPCR). The maxillae from the rest of the rats were taken for histological examination. In the PDT group, the analysis revealed less bone loss than in the control treatment (P < 0.05). No significant difference was found among the control group, TB group, and laser group (P > 0.05). Significantly higher and lower expressions of RANKL and OPG were revealed in the PDT group than that in control group, respectively (P < 0.01). When compared with the control group, the expression of RANKL was significantly reduced by 40.0% in periodontitis in rats treated with TB-PDT for 15 days (P < 0.01). The expression of OPG was increased in the PDT group with TB-PDT for 15 days, when compared with the control group (P < 0.05). TB-PDT treatment significantly reverses the abnormal expression of RANKL and OPG in periodontitis in rats.
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Affiliation(s)
- Xin Su
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Deshu Zhuang
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
- Faculty of Dentistry, Department of Oral Biological and Medical Sciences, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - Yi Zhang
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Han Lv
- Department of Stomatology, Centre Hospital of Longhua District, Shenzhen, 518000, China
| | - Yijing Wang
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Xiaomin Luan
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China
| | - Liangjia Bi
- Department of Stomatology, The Fourth Affiliated Hospital, Harbin Medical University, Harbin, 150001, China.
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Xie CL, Park KH, Kang SS, Cho KM, Lee DH. Isoflavone-enriched soybean leaves attenuate ovariectomy-induced osteoporosis in rats by anti-inflammatory activity. J Sci Food Agric 2021; 101:1499-1506. [PMID: 32851642 DOI: 10.1002/jsfa.10763] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/23/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND With an increasing aging population, postmenopausal osteoporosis has become a global public health problem. Previous evidence has shown that postmenopausal osteoporosis is a skeletal disease mainly caused by estrogen deficiency, generally accompanied by inflammation, and dietary isoflavones may ameliorate postmenopausal osteoporosis by anti-inflammatory activity. We have generated isoflavone-enriched soybean leaves (IESLs), but their anti-inflammatory activity and effect on attenuating osteoporosis are still obscure. Here, we determined the isoflavone profiles of IESLs and evaluated their anti-inflammatory activity in lipopolysaccharide-stimulated RAW 264.7 cells and anti-osteoporotic effects on ovariectomy-induced osteoporosis in rats. RESULTS IESLs had a high content of total isoflavone. Hydrolysate of IESLs (HIESLs) was rich with the aglycones daidzein and genistein, and HIESLs can significantly inhibit lipopolysaccharide-induced inflammation by reducing messenger RNA expression of iNOS, COX-2, IL6, and IL1β. Moreover, ovariectomized rats receiving aqueous extracts of IESLs (HIESLs) orally maintained more bone mass than control rats did, which was attributed to inhibition of osteoclastogenesis by downregulating the messenger RNA expression of the bone-specific genes RANKL/OPG, OC, and cathepsin K, and the inflammation-related genes IL6, NFκB, and COX-2. CONCLUSION IESLs may attenuate postmenopausal osteoporosis by suppressing osteoclastogenesis with anti-inflammatory activity and be a potential source of functional food ingredients for the prevention of osteoporosis. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Cheng-Liang Xie
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou, China
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Ki H Park
- Division of Applied Life Science (BK21 plus), IALS, Gyeongsang National University, Jinju, Republic of Korea
| | - Sang S Kang
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Kye M Cho
- Department of Food Science, Gyeongnam National University of Science and Technology, Jinju, Republic of Korea
| | - Dong H Lee
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
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Komatsu N, Win S, Yan M, Huynh NCN, Sawa S, Tsukasaki M, Terashima A, Pluemsakunthai W, Kollias G, Nakashima T, Takayanagi H. Plasma cells promote osteoclastogenesis and periarticular bone loss in autoimmune arthritis. J Clin Invest 2021; 131:143060. [PMID: 33720039 PMCID: PMC7954598 DOI: 10.1172/jci143060] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 08/14/2020] [Accepted: 01/27/2021] [Indexed: 12/29/2022] Open
Abstract
In rheumatoid arthritis (RA), osteoclastic bone resorption causes structural joint damage as well as periarticular and systemic bone loss. Periarticular bone loss is one of the earliest indices of RA, often preceding the onset of clinical symptoms via largely unknown mechanisms. Excessive osteoclastogenesis induced by receptor activator of NF-κB ligand (RANKL) expressed by synovial fibroblasts causes joint erosion, whereas the role of RANKL expressed by lymphocytes in various types of bone damage has yet to be elucidated. In the bone marrow of arthritic mice, we found an increase in the number of RANKL-expressing plasma cells, which displayed an ability to induce osteoclastogenesis in vitro. Genetic ablation of RANKL in B-lineage cells resulted in amelioration of periarticular bone loss, but not of articular erosion or systemic bone loss, in autoimmune arthritis. We also show conclusive evidence for the critical contribution of synovial fibroblast RANKL to joint erosion in collagen-induced arthritis on the arthritogenic DBA/1J background. This study highlights the importance of plasma-cell RANKL in periarticular bone loss in arthritis and provides mechanistic insight into the early manifestation of bone lesion induced by autoimmunity.
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Affiliation(s)
- Noriko Komatsu
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Stephanie Win
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Minglu Yan
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nam Cong-Nhat Huynh
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shinichiro Sawa
- Division of Mucosal Immunology, Research Center for Systems Immunology, Kyushu University, Fukuoka, Japan
| | - Masayuki Tsukasaki
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Asuka Terashima
- Department of Osteoimmunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Warunee Pluemsakunthai
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - George Kollias
- Biomedical Sciences Research Centre “Alexander Fleming,” Vari, Greece
- Department of Physiology, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Tomoki Nakashima
- Department of Cell Signaling, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Takayanagi
- Department of Immunology, Graduate School of Medicine and Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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45
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Xie CL, Park KH, Kang SS, Cho KM, Lee DH. Isoflavone-enriched soybean leaves attenuate ovariectomy-induced osteoporosis in rats by anti-inflammatory activity. J Sci Food Agric 2021; 101:1499-1506. [PMID: 32851642 DOI: 10.1002/jsfa.v101.410.1002/jsfa.10763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/23/2020] [Accepted: 08/27/2020] [Indexed: 05/28/2023]
Abstract
BACKGROUND With an increasing aging population, postmenopausal osteoporosis has become a global public health problem. Previous evidence has shown that postmenopausal osteoporosis is a skeletal disease mainly caused by estrogen deficiency, generally accompanied by inflammation, and dietary isoflavones may ameliorate postmenopausal osteoporosis by anti-inflammatory activity. We have generated isoflavone-enriched soybean leaves (IESLs), but their anti-inflammatory activity and effect on attenuating osteoporosis are still obscure. Here, we determined the isoflavone profiles of IESLs and evaluated their anti-inflammatory activity in lipopolysaccharide-stimulated RAW 264.7 cells and anti-osteoporotic effects on ovariectomy-induced osteoporosis in rats. RESULTS IESLs had a high content of total isoflavone. Hydrolysate of IESLs (HIESLs) was rich with the aglycones daidzein and genistein, and HIESLs can significantly inhibit lipopolysaccharide-induced inflammation by reducing messenger RNA expression of iNOS, COX-2, IL6, and IL1β. Moreover, ovariectomized rats receiving aqueous extracts of IESLs (HIESLs) orally maintained more bone mass than control rats did, which was attributed to inhibition of osteoclastogenesis by downregulating the messenger RNA expression of the bone-specific genes RANKL/OPG, OC, and cathepsin K, and the inflammation-related genes IL6, NFκB, and COX-2. CONCLUSION IESLs may attenuate postmenopausal osteoporosis by suppressing osteoclastogenesis with anti-inflammatory activity and be a potential source of functional food ingredients for the prevention of osteoporosis. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Cheng-Liang Xie
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou, China
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Ki H Park
- Division of Applied Life Science (BK21 plus), IALS, Gyeongsang National University, Jinju, Republic of Korea
| | - Sang S Kang
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Kye M Cho
- Department of Food Science, Gyeongnam National University of Science and Technology, Jinju, Republic of Korea
| | - Dong H Lee
- Department of Anatomy and Convergence Medical Science, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
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Häussling V, Aspera-Werz RH, Rinderknecht H, Springer F, Arnscheidt C, Menger MM, Histing T, Nussler AK, Ehnert S. 3D Environment Is Required In Vitro to Demonstrate Altered Bone Metabolism Characteristic for Type 2 Diabetics. Int J Mol Sci 2021; 22:ijms22062925. [PMID: 33805833 PMCID: PMC8002142 DOI: 10.3390/ijms22062925] [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] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022] Open
Abstract
A large British study, with almost 3000 patients, identified diabetes as main risk factor for delayed and nonunion fracture healing, the treatment of which causes large costs for the health system. In the past years, much progress has been made to treat common complications in diabetics. However, there is still a lack of advanced strategies to treat diabetic bone diseases. To develop such therapeutic strategies, mechanisms leading to massive bone alterations in diabetics have to be well understood. We herein describe an in vitro model displaying bone metabolism frequently observed in diabetics. The model is based on osteoblastic SaOS-2 cells, which in direct coculture, stimulate THP-1 cells to form osteoclasts. While in conventional 2D cocultures formation of mineralized matrix is decreased under pre-/diabetic conditions, formation of mineralized matrix is increased in 3D cocultures. Furthermore, we demonstrate a matrix stability of the 3D carrier that is decreased under pre-/diabetic conditions, resembling the in vivo situation in type 2 diabetics. In summary, our results show that a 3D environment is required in this in vitro model to mimic alterations in bone metabolism characteristic for pre-/diabetes. The ability to measure both osteoblast and osteoclast function, and their effect on mineralization and stability of the 3D carrier offers the possibility to use this model also for other purposes, e.g., drug screenings.
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Affiliation(s)
- Victor Häussling
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Romina H. Aspera-Werz
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Helen Rinderknecht
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Fabian Springer
- Department of Diagnostic and Interventional Radiology, University of Tübingen, Hoppe-Seyler-Str. 3, D-72076 Tübingen, Germany;
- Radiology Department, BG Trauma Center Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany
| | - Christian Arnscheidt
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Maximilian M. Menger
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Tina Histing
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Andreas K. Nussler
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
- Correspondence: ; Tel.: +49-7071-606-1065
| | - Sabrina Ehnert
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
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Watahiki A, Hoshikawa S, Chiba M, Egusa H, Fukumoto S, Inuzuka H. Deficiency of Lipin2 Results in Enhanced NF-κB Signaling and Osteoclast Formation in RAW-D Murine Macrophages. Int J Mol Sci 2021; 22:ijms22062893. [PMID: 33809261 PMCID: PMC8001760 DOI: 10.3390/ijms22062893] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 11/30/2022] Open
Abstract
Lipin2 is a phosphatidate phosphatase that plays critical roles in fat homeostasis. Alterations in Lpin2, which encodes lipin2, cause the autoinflammatory bone disorder Majeed syndrome. Lipin2 limits lipopolysaccharide (LPS)-induced inflammatory responses in macrophages. However, little is known about the precise molecular mechanisms underlying its anti-inflammatory function. In this study, we attempted to elucidate the molecular link between the loss of lipin2 function and autoinflammatory bone disorder. Using a Lpin2 knockout murine macrophage cell line, we showed that lipin2 deficiency enhances innate immune responses to LPS stimulation through excessive activation of the NF-κB signaling pathway, partly because of TAK1 signaling upregulation. Lipin2 depletion also enhanced RANKL-mediated osteoclastogenesis and osteoclastic resorption activity accompanied by NFATc1 dephosphorylation and increased nuclear accumulation. These results suggest that lipin2 suppresses the development of autoinflammatory bone disorder by fine-tuning proinflammatory responses and osteoclastogenesis in macrophages. Therefore, this study provides insights into the molecular pathogenesis of monogenic autoinflammatory bone disorders and presents a potential therapeutic intervention.
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Affiliation(s)
- Asami Watahiki
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Seira Hoshikawa
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Mitsuki Chiba
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Hiroshi Egusa
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Division of Molecular and Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
| | - Satoshi Fukumoto
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Division of Pediatric Dentistry, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan
- Department of Pediatric Dentistry, Graduate School of Dental Science, Kyushu University, Fukuoka 812-8582, Japan
- Correspondence: (S.F.); (H.I.); Tel.: +81-22-717-8380 (S.F.); +81-22-717-8308 (H.I.)
| | - Hiroyuki Inuzuka
- Center for Advanced Stem Cell and Regenerative Research, Tohoku University Graduate School of Dentistry, Sendai 980-8575, Japan; (A.W.); (S.H.); (M.C.); (H.E.)
- Correspondence: (S.F.); (H.I.); Tel.: +81-22-717-8380 (S.F.); +81-22-717-8308 (H.I.)
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Gross T, Jeney C, Halm D, Finkenzeller G, Stark GB, Zengerle R, Koltay P, Zimmermann S. Characterization of CRISPR/Cas9 RANKL knockout mesenchymal stem cell clones based on single-cell printing technology and Emulsion Coupling assay as a low-cellularity workflow for single-cell cloning. PLoS One 2021; 16:e0238330. [PMID: 33661950 PMCID: PMC7932140 DOI: 10.1371/journal.pone.0238330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 02/04/2021] [Indexed: 12/03/2022] Open
Abstract
The homogeneity of the genetically modified single-cells is a necessity for many applications such as cell line development, gene therapy, and tissue engineering and in particular for regenerative medical applications. The lack of tools to effectively isolate and characterize CRISPR/Cas9 engineered cells is considered as a significant bottleneck in these applications. Especially the incompatibility of protein detection technologies to confirm protein expression changes without a preconditional large-scale clonal expansion creates a gridlock in many applications. To ameliorate the characterization of engineered cells, we propose an improved workflow, including single-cell printing/isolation technology based on fluorescent properties with high yield, a genomic edit screen (Surveyor assay), mRNA RT-PCR assessing altered gene expression, and a versatile protein detection tool called emulsion-coupling to deliver a high-content, unified single-cell workflow. The workflow was exemplified by engineering and functionally validating RANKL knockout immortalized mesenchymal stem cells showing bone formation capacity of these cells. The resulting workflow is economical, without the requirement of large-scale clonal expansions of the cells with overall cloning efficiency above 30% of CRISPR/Cas9 edited cells. Nevertheless, as the single-cell clones are comprehensively characterized at an early, highly parallel phase of the development of cells including DNA, RNA, and protein levels, the workflow delivers a higher number of successfully edited cells for further characterization, lowering the chance of late failures in the development process.
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Affiliation(s)
- Tobias Gross
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- * E-mail:
| | - Csaba Jeney
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
| | - Darius Halm
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Günter Finkenzeller
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - G. Björn Stark
- Department of Plastic and Hand Surgery, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roland Zengerle
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
| | - Peter Koltay
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
- Hahn-Schickard, Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Freiburg, Germany
| | - Stefan Zimmermann
- Laboratory for MEMS Applications, IMTEK - Department of Microsystems Engineering, University of Freiburg, Freiburg, Germany
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Abstract
BACKGROUND & OBJECTIVES Osteoarthritis (OA) is the 11th leading cause of disability in the modern world, but till date, there have been no effective markers for monitoring the progression of OA. The three proteins RANK/RANK-Ligand and Osteoprotegerin (OPG) have been found to be the key regulators of bone metabolism. Interaction of RANK-Ligand with its receptor RANK triggers differentiation of osteoclasts leading to bone resorption. OPG on the other hand is protective as it is expressed by osteoblasts and bind RANKL with higher affinity preventing its interaction with RANK. The levels of these serum proteins are regulated by vitamin D and parathyroid hormones. Therefore, the present study, aimed to study the association of serum RANKL, OPG and vitamin D with disease severity in patients with knee OA. METHODS It was a cross-sectional study where 80 (43 women and 37 men) newly diagnosed subjects with OA knee were recruited. They were classified into four grades based on K-L grading and into two groups as early (grade 1+grade 2) and advanced (grade 3 + grade 4) based on the disease progression. RESULTS On comparing the biochemical parameters among the four grades decreasing vitamin D levels were seen with increasing severity of knee OA; an increasing trend of RANKL with increase in the severity of OA was seen; OPG was found to be elevated more in the early stages of OA. We also observed a strong association of RANKL/OPG ratio with disease severity. INTERPRETATION & CONCLUSIONS Overall the results suggest that OPG may be considered as an early marker of the diseases.
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Affiliation(s)
- Sanjukta Naik
- Department of Biochemistry, AIIMS, Bhubaneswar, Odisha, India
| | - Suchanda Sahu
- Department of Biochemistry, AIIMS, Bhubaneswar, Odisha, India
- For correspondence: Dr Suchanda Sahu, Department of Biochemistry, AIIMS Bhubaneswar 751 019, Odisha, India e-mail:
| | | | - Sujit Tripathy
- Department of Orthopedics, AIIMS, Bhubaneswar, Odisha, India
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Pennanen P, Kallionpää RA, Peltonen S, Nissinen L, Kähäri VM, Heervä E, Peltonen J. Signaling pathways in human osteoclasts differentiation: ERK1/2 as a key player. Mol Biol Rep 2021; 48:1243-1254. [PMID: 33486672 PMCID: PMC7925492 DOI: 10.1007/s11033-020-06128-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 07/04/2020] [Accepted: 12/24/2020] [Indexed: 02/07/2023]
Abstract
Little is known about the signaling pathways involved in the differentiation of human osteoclasts. The present study evaluated the roles of the Ras/PI3K/Akt/mTOR, Ras/Raf/MEK1/2/ERK1/2, calcium-PKC, and p38 signaling pathways in human osteoclast differentiation. Mononuclear cells were isolated from the peripheral blood of control persons and patients with neurofibromatosis 1 (NF1), and the cells were differentiated into osteoclasts in the presence of signaling pathway inhibitors. Osteoclast differentiation was assessed using tartrate-resistant acid phosphatase 5B. Inhibition of most signaling pathways with chemical inhibitors decreased the number of human osteoclasts and disrupted F-actin ring formation, while the inhibition of p38 resulted in an increased number of osteoclasts, which is a finding contradictory to previous murine studies. However, the p38 inhibition did not increase the bone resorption capacity of the cells. Ras-inhibitor FTS increased osteoclastogenesis in samples from control persons, but an inhibitory effect was observed in NF1 samples. Inhibition of MEK, PI3K, and mTOR reduced markedly the number of NF1-deficient osteoclasts, but no effect was observed in control samples. Western blot analyses showed that the changes in the phosphorylation of ERK1/2 correlated with the number of osteoclasts. Our results highlight the fact that osteoclastogenesis is regulated by multiple interacting signaling pathways and emphasize that murine and human findings related to osteoclastogenesis are not necessarily equivalent.
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Affiliation(s)
- Paula Pennanen
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - Roope A Kallionpää
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland
| | - Sirkku Peltonen
- Department of Dermatology, University of Turku and Turku University Hospital, Turku, Finland
- Department of Dermatology and Venereology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Dermatology and Venereology, Region Västra Götaland, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Liisa Nissinen
- Department of Dermatology, University of Turku and Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku and Cancer Research Laboratory FICAN West, University of Turku and Turku University Hospital, Turku, Finland
| | - Veli-Matti Kähäri
- Department of Dermatology, University of Turku and Turku University Hospital, Turku, Finland
- MediCity Research Laboratory, University of Turku and Cancer Research Laboratory FICAN West, University of Turku and Turku University Hospital, Turku, Finland
| | - Eetu Heervä
- Department of Oncology, University of Turku and Turku University Hospital, Turku, Finland
| | - Juha Peltonen
- Department of Cell Biology and Anatomy, Institute of Biomedicine, University of Turku, Kiinamyllynkatu 10, 20520, Turku, Finland.
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