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Zhang D, Li J, Li X, Liu W, Yu Y, Sun H, Wu J, Ge Z, Lv K, Shao Y, Wang S, Ye X. Anti-osteoporosis activity of casticin in ovariectomized rats. Toxicol Res (Camb) 2024; 13:tfae064. [PMID: 38680951 PMCID: PMC11052697 DOI: 10.1093/toxres/tfae064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 03/06/2024] [Indexed: 05/01/2024] Open
Abstract
Background Postmenopausal osteoporosis (PMPO) is the most familiar type of osteoporosis, a silent bone disease. Casticin, a natural flavonoid constituent, improves osteoporosis in animal model. Nevertheless, the potential mechanism remains to be further explored. Methods A model of PMPO was established in rats treated with ovariectomy (OVX) and RAW 264.7 cells induced with receptor activator of nuclear factor kappa-B ligand (RANKL). The effect and potential mechanism of casticin on PMPO were addressed by pathological staining, measurement of bone mineral density (BMD), three-point bending test, serum biochemical detection, filamentous-actin (F-actin) ring staining, TRAcP staining, reverse transcription quantitative polymerase chain reaction, western blot and examination of oxidative stress indicators. Results The casticin treatment increased the femoral trabecular area, bone maturity, BMD, elastic modulus, maximum load, the level of calcium and estrogen with the reduced concentrations of alkaline phosphatase (ALP) and tumor necrosis factor (TNF)-α in OVX rats. An enhancement in the F-actin ring formation, TRAcP staining and the relative mRNA expression of NFATc1 and TRAP was observed in RANKL-induced RAW 264.7 cells, which was declined by the treatment of casticin. Moreover, the casticin treatment reversed the reduced the relative protein expression of Nrf2 and HO-1 and the concentrations of superoxide dismutase and glutathione peroxidase, and the increased content of malondialdehyde both in vivo and in vitro. Conclusion Casticin improved bone density, bone biomechanics, the level of calcium and estrogen, the release of pro-inflammatory factor and oxidative stress to alleviate osteoporosis, which was associated with the upregulation of Nrf2/HO-1 pathway.
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Affiliation(s)
- Dong Zhang
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Jianmin Li
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Xuejia Li
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Wanxin Liu
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Ying Yu
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Hao Sun
- Department of Spine Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Jiajun Wu
- Department of Spine Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Zhichao Ge
- Department of Spine Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Kai Lv
- Department of Spine Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Yanting Shao
- Laboratory Animal Center, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Shuqiang Wang
- Department of Spine Surgery, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
| | - Xiaojian Ye
- Department of Orthopedics, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, No. 110 Ganhe Road, Hongkou District, Shanghai 200437, China
- Department of Orthopedics, 2. Tongren Hospital, Shanghai Jiao Tong University School of Medicine, No. 1111 Xianxia Road, Changning District, Shanghai 200336, China
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Shi B, Lin CC, Lee CJ, Ning DS, Lin CC, Zhao HW, Yang CS, Deng SX, Chiu YJ, Wang CC. Anti-osteoporotic effects of Yi Mai Jian on bone metabolism of ovariectomized rats. Front Pharmacol 2024; 15:1326415. [PMID: 38606179 PMCID: PMC11007778 DOI: 10.3389/fphar.2024.1326415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/14/2024] [Indexed: 04/13/2024] Open
Abstract
Yi Mai Jian herbal formula (YMJ) is formulated with Eucommiae Folium, Astragali Radix, Ligustri Lucidi Fructus, and Elaeagnus Fructus to improve bone function in traditional Chinese medicine. The anti-osteoporotic effects of YMJ in bone metabolism were evaluated in ovariectomized (OVX) rats. The skeletal structure of the femur and vertebrae was analyzed after treating OVX rats with YMJ for 114 days. The results showed that YMJ significantly increased the bone mineral density (BMD) and trabecular number (Tb. N) of the femur and 5th lumbar vertebrae and reduced trabecular separation (Tb. Sp). Moreover, trabecular bone volume/total tissue volume (BV/TV), bone stiffness, and maximum femur load were significantly increased. The serum concentrations of NTX1 and PYD were significantly decreased. According to these results, YMJ could ameliorate osteoporosis in ovariectomized rats. Eucommiae Folium and Elaeagnus Fructus inhibited osteoclast differentiation, Ligustri Lucidi Fructus inhibited calcium reabsorption, Astragali Radix stimulated osteoblast proliferation, and Astragali Radix and Eucommiae Folium stimulated mineralization. Therefore, the combination of the four herbs into one formula, YMJ, could alleviate bone remodeling caused by low estrogen levels. We suggest that YMJ could be a healthy food candidate for preventing post-menopausal osteoporosis.
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Affiliation(s)
- Bin Shi
- Infinitus (China) Company Ltd, Guangxhou, Guangdong, China
| | - Che-Chun Lin
- PhD Program for Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Guangzhou, Taiwan
| | - Chia-Jung Lee
- PhD Program for Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Guangzhou, Taiwan
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - De-Shan Ning
- Infinitus (China) Company Ltd, Guangxhou, Guangdong, China
| | - Chao-Chi Lin
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Hong-Wei Zhao
- Infinitus (China) Company Ltd, Guangxhou, Guangdong, China
| | - Chang-Syun Yang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shun-Xin Deng
- PhD Program for Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Guangzhou, Taiwan
| | - Yung-Jia Chiu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Ching-Chiung Wang
- PhD Program for Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Guangzhou, Taiwan
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei, Taiwan
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
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3
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Ai L, Chen L, Tao Y, Wang H, Yi W. Icariin promotes osteogenic differentiation through the mmu_circ_0000349/mmu-miR-138-5p/Jumonji domain-containing protein-3 axis. Heliyon 2023; 9:e21885. [PMID: 38045146 PMCID: PMC10692785 DOI: 10.1016/j.heliyon.2023.e21885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/22/2023] [Accepted: 10/31/2023] [Indexed: 12/05/2023] Open
Abstract
Circular RNAs (circRNAs) regulate Jumonji domain-containing protein-3 (JMJD3) by sponging with microRNAs (miRNAs). This study aimed to investigate the role of icariin on specific circRNA/miRNA/JMJD3 axis in osteogenic differentiation of MC3T3-E1 cells. CircRNA sequencing was performed on the MC3T3-E1 cells induced by osteogenic differentiation medium for 1 d (negative control (NC) group) and 14 d (osteogenesis group). And mmu_circ_0000349 was verified using Sanger sequencing, ribonuclease R degradation, and actinomycin D assay. The function of mmu_circ_0000349 was validated by detecting the expressions of osteogenic differentiation markers, alkaline phosphatase (ALP), and runt-related transcription (RUNX2), via real-time quantitative PCR (qPCR) and Western blotting or ALP and alizarin red staining assay. Dual luciferase reporter gene assay confirmed the relationship between mmu_circ_0000349 and mmu-miR-138-5p (or mmu-miR-138-5p and JMJD3). Meanwhile, the JMJD3 binding to mmu_circ_0000349 was screened using an RNA pull-down assay. qPCR and Western blotting confirmed the effect of icariin on the mmu_circ_0000349/mmu-miR-138-5p/JMJD3 axis and osteogenic differentiation. As MC3T3-E1 osteogenic differentiation progressed, the JMJD3 expression level increased. A total of 361 circRNAs exhibited differences between the NC and osteogenesis groups. After validation, mmu_circ_0000349 was further analyzed as it exhibited the largest expression. And mmu_circ_0000349 was identified as a stable circular structure. Overexpression of mmu_circ_0000349 increased the expression levels of ALP and RUNX2, enhanced ALP activity, and increased the number of mineralized nodules; contrarily, inhibition of mmu_circ_0000349 exerted opposite effects. The data also confirmed that mmu_circ_0000349 regulated JMJD3 by sponging with mmu-miR-138-5p. With the increase in icariin concentration and time for treatment, the expression levels of mmu_circ_0000349, JMJD3, ALP, and RUNX2 also increased, whereas that of mmu-miR-138-5p decreased. In conclusion, Icariin promoted osteogenic differentiation by regulating the mmu_circ_0000349/mmu-miR-138-5p/JMJD3 pathway. Therefore, this provides a theoretical basis for the treatment of diseases related to osteogenic differentiation.
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Affiliation(s)
- Liang Ai
- Department of TCM, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, 510120, China
| | - Liudan Chen
- Department of TCM and Acupuncture, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yangu Tao
- Department of TCM, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, 510120, China
| | - Haibin Wang
- Department of Orthopaedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Weimin Yi
- Department of TCM and Acupuncture, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
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Cao Q, Wang Q, Wu X, Zhang Q, Huang J, Chen Y, You Y, Qiang Y, Huang X, Qin R, Cao G. A literature review: mechanisms of antitumor pharmacological action of leonurine alkaloid. Front Pharmacol 2023; 14:1272546. [PMID: 37818195 PMCID: PMC10560730 DOI: 10.3389/fphar.2023.1272546] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/08/2023] [Indexed: 10/12/2023] Open
Abstract
Leonurine refers to the desiccated aerial portion of a plant in the Labiatae family. The primary bioactive constituent of Leonurine is an alkaloid, Leonurine alkaloid (Leo), renowned for its substantial therapeutic efficacy in the treatment of gynecological disorders, in addition to its broad-spectrum antineoplastic capabilities. Over recent years, the pharmacodynamic mechanisms of Leo have garnered escalating scholarly interest. Leo exhibits its anticancer potential by means of an array of mechanisms, encompassing the inhibition of neoplastic cell proliferation, induction of both apoptosis and autophagy, and the containment of oncogenic cell invasion and migration. The key signal transduction pathways implicated in these processes include the Tumor Necrosis Factor-Related Apoptosis-Inducing Ligand (TRAIL), the Phosphoinositide3-Kinase/Serine/Threonine Protein Kinase (PI3K/AKT), the Signal Transducer and Activator of Transcription 3 (STAT3), and the Mitogen-Activated Protein/Extracellular Signal-Regulated Kinase (MAP/ERK). This paper commences with an exploration of the principal oncogenic cellular behaviors influenced by Leo and the associated signal transduction pathways, thereby scrutinizing the mechanisms of Leo in the antineoplastic sequence of events. The intention is to offer theoretical reinforcement for the elucidation of more profound mechanisms underpinning Leo's anticancer potential and correlating pharmaceutical development.
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Affiliation(s)
- Qiang Cao
- Department of Earth Sciences, Kunming University of Science and Technology, Kunming, China
- School of Medicine, Macau University of Science and Technology, Taipa, China
| | - Qi Wang
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Xinyan Wu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - Qi Zhang
- Undergraduate Department, Taishan University, Taian, China
| | - Jinghan Huang
- Undergraduate Department, Sichuan Conservatory of Music, Chengdu, China
| | - Yuquan Chen
- Institute of Medical Information/Library, Chinese Academy of Medical Sciences, Beijing, China
| | - Yanwei You
- Division of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - Yi Qiang
- Department of Earth Sciences, Kunming University of Science and Technology, Kunming, China
| | - Xufeng Huang
- Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Ronggao Qin
- Department of Earth Sciences, Kunming University of Science and Technology, Kunming, China
| | - Guangzhu Cao
- Department of Earth Sciences, Kunming University of Science and Technology, Kunming, China
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Feng X, Zhu S, Qiao J, Ji Z, Zhou B, Xu W. CX3CL1 promotes M1 macrophage polarization and osteoclast differentiation through NF-κB signaling pathway in ankylosing spondylitis in vitro. J Transl Med 2023; 21:573. [PMID: 37626378 PMCID: PMC10463543 DOI: 10.1186/s12967-023-04449-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Ankylosing spondylitis (AS) is an autoimmune disease with a genetic correlation and is characterized by inflammation in the axial skeleton and sacroiliac joints. Many AS patients also have inflammatory bowel diseases (IBD), but the underlying causes of intestinal inflammation and osteoporosis in AS are not well understood. CX3CL1, a protein involved in inflammation, has been found to be up-regulated in AS patients and AS-model mice. METHODS The authors investigated the effects of CX3CL1 on AS by studying its impact on macrophage polarization, inflammation factors, and osteoclast differentiation. Furthermore, the effects of inhibiting the NF-κB pathway and blocking CX3CL1 were assessed using BAY-117082 and anti-CX3CL1 mAb, respectively. AS model mice were used to evaluate the effects of anti-CX3CL1 mAb on limb thickness, spine rupture, and intestinal tissue damage. RESULTS The authors found that CX3CL1 increased the expression of M1-type macrophage markers and inflammation factors, and promoted osteoclast differentiation. This effect was mediated through the NF-κB signaling pathway. Inhibition of the NF-κB pathway prevented M1-type macrophage polarization, reduced inflammation levels, and inhibited osteoclast differentiation. Injection of anti-CX3CL1 mAb alleviated limb thickness, spine rupture, and intestinal tissue damage in AS model mice by inhibiting M1-type macrophage polarization and reducing intestinal tissue inflammation. CONCLUSIONS The study demonstrated that up-regulated CX3CL1 promotes M1-type macrophage polarization and osteoclast differentiation through the NF-κB signaling pathway. Inhibition of this pathway and blocking CX3CL1 can alleviate inflammation and bone destruction in AS. These findings contribute to a better understanding of the pathogenesis of AS and provide a basis for clinical diagnosis and treatment.
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Affiliation(s)
- Xinzhe Feng
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Shanbang Zhu
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China
- Department of Orthopaedics, Affiliated Jinling Hospital, Medical School of Nanjing University, No 305 Zhongshandonglu Road, Nanjing, 210002, China
| | - Junjie Qiao
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Zhou Ji
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Bole Zhou
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Weidong Xu
- Department of Joint Bone Disease Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Shanghai, 200433, China.
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Tang LD, Wang JY, Zhang Y, Chen XY, Zhang L, Yuan Y. Iridoid from Eucommia ulmoides Oliv. Exerts Antiarthritis Effects by Inhibiting the JAK2/STAT3 Signaling Pathway In Vivo and In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:4167906. [PMID: 37123081 PMCID: PMC10132903 DOI: 10.1155/2023/4167906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/19/2023] [Accepted: 02/18/2023] [Indexed: 05/02/2023]
Abstract
The purpose of this study was to investigate the anti-inflammatory effects of EU-Idd both in vivo and in vitro. In vivo, we used the collagen-induced arthritis (CIA) rat model to investigate the efficacy of EU-Idd on rheumatoid arthritis. Hematoxylin-eosin staining and Safranin O-fast green staining were used to evaluate the pathological status of the ankle joints in CIA rats. Micro-CT scanning was used to investigate bone erosion of the ankle joints. In vitro, the effect of EU-Idd on Th17 cell differentiation was identified by flow cytometry. TRAP staining was used to detect osteoclast cells. HFLS-RA model cells, induced by tumor necrosis factor-α(TNF-α), were used to evaluate the anti-inflammatory effects of EU-Idd while the levels of related inflammatory cytokines and JAK2/STAT3 proteins were detected by RT-qPCR and western blotting. EU-Idd alleviated joint inflammation in CIA rats and exerted protective effects on the ankle joints. EU-Idd also prevented the differentiation of CD4+ T cells into Th17 cells, reduced the number of osteoclasts, and improved the expression levels of bone metabolism-related proteins including OPG and RANKL. Moreover, EU-Idd inhibited the invasion and migration of HFLS-RA cells and downregulated the expression of related inflammatory cytokine genes and the protein expression levels of p-JAK2 and p-STAT3, both in vivo and in vitro. EU-Idd exerts anti-inflammatory and osteoprotective effects by regulating the JAK2/STAT3 pathway in rheumatoid arthritis. These results are beneficial to excavate new pharmaceutical ingredients for rheumatoid arthritis from iridoid.
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Affiliation(s)
- Li-Dong Tang
- School of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, 201203 Shanghai, China
| | - Jian-Ying Wang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai 201203, China
| | - Yan Zhang
- School of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, 201203 Shanghai, China
| | - Xiao-Yun Chen
- Shanghai Longhua Hospital Affiliated to Shanghai University of TCM, Rheumatoid Department, No. 725 South Wanpin Road, Xuhui District, Shanghai 200232, China
| | - Lei Zhang
- Shanghai Innovation Center of TCM Health Service, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, Shanghai 201203, China
| | - Ying Yuan
- School of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Pudong District, 201203 Shanghai, China
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Wang M, An M, Fan MS, Zhang SS, Sun Z, Zhao Y, Xiang ZM, Sheng J. FAEE exerts a protective effect against osteoporosis by regulating the MAPK signalling pathway. PHARMACEUTICAL BIOLOGY 2022; 60:467-478. [PMID: 35180021 PMCID: PMC8865110 DOI: 10.1080/13880209.2022.2039216] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
CONTEXT Ferulic acid ethyl ester (FAEE) is abundant in Ligusticum chuanxiong Hort. (Apiaceae) and grains, and possesses diverse biological activities; but the effects of FAEE on osteoporosis has not been reported. OBJECTIVE This study investigated whether FAEE can attenuate osteoclastogenesis and relieve ovariectomy-induced osteoporosis via attenuating mitogen-activated protein kinase (MAPK). MATERIALS AND METHODS We stimulated RAW 264.7 cells with receptor activator of NF-κB ligand (RANKL) followed by FAEE. The roles of FAEE in osteoclast production and osteogenic resorption of mature osteoclasts were evaluated by tartrate resistant acid phosphatase (TRAP) staining, expression of osteoclast-specific genes, proteins and MAPK. Ovariectomized (OVX) female Sprague-Dawley rats were administered FAEE (20 mg/kg/day) for 12 weeks to explore its potential in vivo, and then histology was undertaken in combination with cytokines analyses. RESULTS FAEE suppressed RANKL-induced osteoclast formation (96 ± 0.88 vs. 15 ± 1.68) by suppressing the expression of osteoclast-specific genes, proteins and MAPK signalling pathway related proteins (p-ERK/ERK, p-JNK/JNK and p-P38/P38) in vitro. In addition, OVX rats exposed to FAEE maintained their normal calcium (Ca) (2.72 ± 0.02 vs. 2.63 ± 0.03, p < 0.05) balance, increased oestradiol levels (498.3 ± 9.43 vs. 398.7 ± 22.06, p < 0.05), simultaneously reduced levels of bone mineral density (BMD) (0.159 ± 0.0016 vs. 0.153 ± 0.0025, p < 0.05) and bone mineral content (BMC) (0.8 ± 0.0158 vs. 0.68 ± 0.0291, p < 0.01). DISCUSSION AND CONCLUSIONS These findings suggested that FAEE could be used to ameliorate osteoporosis by the MAPK signalling pathway, suggesting that FAEE could be a potential therapeutic candidate for osteoporosis.
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Affiliation(s)
- Ming‑Yue Wang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Meng‑Fei An
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
| | - Mao-Si Fan
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Shao-Shi Zhang
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Ze‑Rui Sun
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Food Science and Technology, Yunnan Agricultural University, Kunming, P. R. China
| | - Yun‑Li Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education; Yunnan Provincial Center for Research & Development of Natural Products; School of Chemical Science and Technology, Yunnan University, Kunming, P. R. China
- Yun‑Li Zhao
| | - Ze-Min Xiang
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
- Ze-Min Xiang
| | - Jun Sheng
- Key Laboratory of Pu-erh Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming, P. R. China
- College of Science, Yunnan Agricultural University, Kunming, P. R. China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Kunming, P. R. China
- CONTACT Jun Sheng
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8
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Ye X, Jiang J, Yang J, Yan W, Jiang L, Chen Y. Specnuezhenide suppresses diabetes-induced bone loss by inhibiting RANKL-induced osteoclastogenesis. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1080-1089. [PMID: 35929595 PMCID: PMC9827798 DOI: 10.3724/abbs.2022094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 11/29/2021] [Indexed: 11/25/2022] Open
Abstract
Diabetes osteoporosis is a chronic complication of diabetes mellitus (DM) and is associated with osteoclast formation and enhanced bone resorption. Specnuezhenide (SPN) is an active compound with anti-inflammatory and immunomodulatory properties. However, the roles of SPN in diabetic osteoporosis remain unknown. In this study, primary bone marrow macrophages (BMMs) were pretreated with SPN and were stimulated with receptor activator of nuclear factor kappa B ligand (RANKL; 50 ng/mL) to induce osteoclastogenesis. The number of osteoclasts was detected by tartrate-resistant acid phosphatase (TRAP) staining. The protein levels of cellular oncogene fos/nuclear factor of activated T cells c1 (c-Fos/NFATc1), nuclear factor kappa-B (NF-κB), and mitogen-activated protein kinases (MAPKs) were evaluated by western blot analysis. NF-κB luciferase assays were used to examine the role of SPN in NF-κB activation. The DM model group received a high-glucose, high-fat diet and was then intraperitoneally injected with streptozotocin (STZ). Micro-CT scanning, serum biochemical analysis, histological analysis were used to assess bone loss. We found that SPN suppressed RANKL-induced osteoclast formation and that SPN inhibited the expression of osteoclast-related genes and c-Fos/ NFATc1. SPN inhibited RANKL-induced activation of NF-κB and MAPKs. In vivo experiments revealed that SPN suppressed diabetes-induced bone loss and the number of osteoclasts. Furthermore, SPN decreased the levels of bone turnover markers and increased the levels of runt-related transcription factor 2 (RUNX2), osteoprotegerin (OPG), calcium (Ca) and phosphorus (P). SPN also regulated diabetes-related markers. This study suggests that SPN suppresses diabetes-induced bone loss by inhibiting RANKL-induced osteoclastogenesis, and provides an experimental basis for the treatment of diabetic osteoporosis.
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Affiliation(s)
| | | | - Juan Yang
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Wenyan Yan
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Luyue Jiang
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
| | - Yan Chen
- />Department of Nephrologythe Affiliated Geriatric Hospital of Nanjing Medical UniversityNanjing210024China
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9
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Determination of Therapeutic and Safety Effects of Zygophyllum coccineum Extract in Induced Inflammation in Rats. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7513155. [PMID: 35898689 PMCID: PMC9314163 DOI: 10.1155/2022/7513155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/28/2022] [Accepted: 06/14/2022] [Indexed: 11/30/2022]
Abstract
Background Z. coccineum is a facultative plant with many medicinal applications. This study examined the anti-inflammatory activity of Zygophyllum coccineum (Z. coccineum) in an arthritis animal model. Materials and Methods Seventy-Six Wistar Albino rats of either sex randomly divided into six groups (12/each). The inflammation model was done using Complete Freund's Adjuvant in albino rats. The anti-inflammatory activities of the extract were estimated at different dose levels (15.6, 31, and 60 mg/kg) as well as upon using methotrexate (MTX) as a standard drug (0.3 mg/kg). Paw volume and arthritis index scores have been tested in all examined animals' treatments. Histological examination of joints was also performed. Flow cytometric studies were done to isolated osteoclasts. Cytokines assay as well as biochemical testing was done in the examined samples. Results. In vitro studies reported an IC50 of 15.6 μg/ml for Z. coccineum extract in lipoxygenase inhibition assay (L.O.X.). Moreover, it could be noticed that isorhamnetin-3-O-glucoside, tribuloside, and 7-acetoxy-4-methyl coumarin were the most common compounds in Z. coccineum extract separated using L.C.–ESI-TOF–M.S. (liquid chromatography-electrospray ionization ion-trap time-of-flight mass spectrometry). Microscopic examinations of synovial tissue and hind limb muscles revealed the effect of different doses of Z. coccineum extract on restoring chondrocytes and muscles structures. Osteoclast size and apoptotic rate examinations revealed the protective effect of Z. coccineum extract on osteoclast. The results upon induction of animals and upon treatment using of MTX significantly increased apoptotic rate of osteoclast compared to control, while using of 15.6 μg/ml. for Z. coccineum extract lead to recover regular apoptotic rate demonstrating the protective effect of the extract. Z. coccineum extract regulated the secretion of proinflammatory and anti-inflammatory cytokines. Biochemical tests indicated the safety of Z. coccineum extract on kidney and liver functions. Conclusion. Z. coccineum extract has efficient and safe anti-inflammatory potential in an induced rat model.
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Cui Z, Feng C, Chen J, Wang Y, Meng Q, Zhao S, Zhang Y, Feng D, Li Z, Sun S. Network Pharmacology Deciphers the Action of Bioactive Polypeptide in Attenuating Inflammatory Osteolysis via the Suppression of Oxidative Stress and Restoration of Bone Remodeling Balance. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4913534. [PMID: 35578727 PMCID: PMC9107052 DOI: 10.1155/2022/4913534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/18/2022] [Indexed: 11/25/2022]
Abstract
Oxidative stress involves enormously in the development of chronic inflammatory bone disease, wherein the overproduction of reactive oxygen species (ROS) negatively impacts the bone remodeling via promoting osteoclastogenesis and inhibiting osteogenesis. Lacking effective therapies highlights the importance of finding novel treatments. Our previous study screened a novel bioactive peptide D7 and demonstrated it could enhance the cell behaviors and protect bone marrow mesenchymal stem cells (BMSCs). Since BMSCs are progenitor cells of osteoblast (OB), we therefore ask whether D7 could also protect against the progress of inflammatory osteolysis. To validate our hypothesis and elucidate the underlying mechanisms, we first performed network pharmacology-based analysis according to the molecule structure of D7, and then followed by pharmacological evaluation on D7 by in vitro lipopolysaccharide(LPS)-induced models. The result from network pharmacology identified 20 candidate targets of D7 for inflammatory osteolysis intervention. The further analysis of Gene Ontology (GO)/KEGG pathway enrichment suggested the therapeutic effect of D7 may primarily affect osteoclast (OC) differentiation and function during the inflammatory osteolysis. Through validating the real effects of D7 on OC and OB as postulated, results demonstrated suppressive effects of D7 on LPS-stimulated OC differentiation and resorption, via the inhibition on OC marker genes. Contrarily, by improving the expression of OB marker genes, D7 displayed promotive effects on OB differentiation and alleviated LPS-induced osteogenic damage. Further mechanism study revealed that D7 could reduce LPS-induced ROS formation and strengthen antioxidants expressions in both OC and OB precursors, ameliorating LPS-triggered redox imbalance in bone remodeling. Taken together, our findings unveiled therapeutic effects of D7 against LPS-induced inflammatory osteolysis through the suppression of oxidative stress and the restoration of the bone remodeling process, providing a new therapeutic candidate for chronic inflammatory bone diseases.
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Affiliation(s)
- Zichen Cui
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Changgong Feng
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Jiazheng Chen
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Yi Wang
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Qi Meng
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Shihao Zhao
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Yuanji Zhang
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Dianjie Feng
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
| | - Ziqing Li
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
| | - Shui Sun
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, China
- Orthopaedic Research Laboratory, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong 250117, China
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250012, China
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11
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Huang J, Zhang W, Yu J, Gou Y, Liu N, Wang T, Sun C, Wu B, Li C, Chen X, Mao Y, Zhang Y, Wang J. Human amniotic mesenchymal stem cells combined with PPCNg facilitate injured endometrial regeneration. Stem Cell Res Ther 2022; 13:17. [PMID: 35022063 PMCID: PMC8756707 DOI: 10.1186/s13287-021-02682-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/14/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Caused by the injury to the endometrial basal layer, intrauterine adhesions (IUA) are characterized by uterine cavity obliteration, leading to impaired fertility. Human amniotic mesenchymal stem cells (hAMSCs) have the potential to promote endometrial regeneration mainly through paracrine ability. PPCNg is a thermoresponsive biomaterial consisted of Poly (polyethylene glycol citrate-co-N-isopropylacrylamide) (PPCN) mixed with gelatin, which has been reported as a scaffold for stem cell transplantation. This study aims to investigate the therapeutic effect of hAMSCs combined with PPCNg transplantation in promoting the regeneration of injured endometrium. METHODS hAMSCs were cultured in different concentrates of PPCNg in vitro, and their proliferation, apoptosis and cell cycle were examined by CCK-8 assay and flow cytometry. Immunofluorescence was used to determine the MSCs specific surface markers. The expression of pluripotent genes was analyzed by qRT-PCR. The multiple-lineage differentiation potential was further evaluated by detecting the differentiation-related genes using qRT-PCR and specific staining. The Sprague-Dawley (SD) rat IUA model was established with 95% ethanol. hAMSCs combined with PPCNg were transplanted through intrauterine injection. The retention of DiR-labeled hAMSCs was observed by vivo fluorescence imaging. The endometrium morphology was assessed using hematoxylin and eosin (H&E) and Masson staining. Immunohistochemistry staining was performed to detect biomarkers related to endometrial proliferation, re-epithelialization, angiogenesis and endometrial receptivity. The function of regenerated endometrium was evaluated by pregnancy tests. RESULTS hAMSCs maintained normal cell proliferation, apoptosis and cell cycle in PPCNg. Immunofluorescence and qRT-PCR showed that hAMSCs cultured in PPCNg and hAMSCs cultured alone expressed the same surface markers and pluripotent genes. hAMSCs exhibited normal multilineage differentiation potential in PPCNg. Vivo fluorescence imaging results revealed that the fluorescence intensity of hAMSCs combined with PPCNg intrauterine transplantation was stronger than that of direct hAMSCs intrauterine transplantation. Histological assays showed the increase in the thickness of endometrial and the number of endometrial glands, and the remarkably decrease in the fibrosis area in the PPCNg/hAMSCs group. The expressions of Ki-67, CK7, CK19, VEGF, ER and PR were significantly increased in the PPCNg/hAMSCs group. Moreover, the number of implanted embryos and pregnancy rate were significantly higher in the PPCNg/hAMSCs group than in the hAMSCs group. CONCLUSIONS PPCNg is suitable for growth, phenotype maintenance and multilineage differentiation of hAMSCs. hAMSCs combined with PPCNg intrauterine transplantation can facilitate the regeneration of injured endometrium by improving utilization rates of hAMSCs, and eventually restore reproductive capacity.
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Affiliation(s)
- Jiayue Huang
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Wenwen Zhang
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Jie Yu
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Yating Gou
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Nizhou Liu
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Tingting Wang
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Congcong Sun
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Benyuan Wu
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Changjiang Li
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Xinpei Chen
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Yanhua Mao
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Yingfeng Zhang
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China
| | - Jia Wang
- Department of Obstetrics and Gynecology, University-Town Hospital of Chongqing Medical University, No. 55, Daxuecheng Middle Road, Chongqing, 401331, China.
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Dou A, Zhang Y, Wang Y, Liu X, Guo Y. Reelin depletion alleviates multiple myeloma bone disease by promoting osteogenesis and inhibiting osteolysis. Cell Death Discov 2021; 7:219. [PMID: 34433809 PMCID: PMC8387418 DOI: 10.1038/s41420-021-00608-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/26/2021] [Accepted: 06/24/2021] [Indexed: 11/09/2022] Open
Abstract
Extracellular matrix glycoprotein Reelin is associated with tumor metastasis and prognosis in various malignancies. However, its effects on multiple myeloma (MM) are not fully understood. Here, we investigated the regulatory effects of Reelin on MM and its underlying pathogenic mechanisms. Lentivirus plasmid containing short hairpin RNA targeting Reelin (LV3-Reln) was transfected into SP2/0 cells to knockdown Reelin expression. Flow cytometry assay analyzed cell cycle and apoptosis while Transwell assay evaluated invasiveness. BALB/c mice were inoculated with LV3-Reln-transfected SP2/0 cells to establish MM model. Primary myeloma cells and osteoblasts/osteoclast were isolated from tumor tissue and limb long bones respectively. ELISA examined serum biomarkers and immunohistochemistry detected immunoglobulin light chain expression. Morphological changes and osteoclast/osteoblast differentiation were observed by histological staining. mRNA and proteins expression were determined by qPCR and WB. In vitro studies showed that Reelin depletion regulated osteolysis and osteogenesis balance, cell cycle, invasiveness, and apoptosis in SP2/0 cells. In LV3-Reln mice, tumor growth and invasiveness were suppressed, meanwhile, reduced osteoclast activation and enhanced osteoblast activity were observed. Reelin knockdown alleviated extramedullary morbidity and inhibited spleen immune cell apoptosis by down-regulating CDK5, IL-10, and Cyto-C expression. Furthermore, reduced Reelin expression restrained osteoclast differentiation while promoted osteogenesis in the bone of LV3-Reln mice. This was further supported by down-regulation of osteolytic specific mRNAs and proteins (Trap, Mmp9, Ctsk, Clcn7) and up-regulation of osteogenic specific ones (COL-1, Runx2, β-Catenin). Reelin exerted important impacts on myeloma development through rebalancing osteolysis and osteogenesis, thus might be a potential therapeutic target for MM.
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Affiliation(s)
- Aixia Dou
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.
| | - Ying Zhang
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yongjing Wang
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Xiaoli Liu
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Yanan Guo
- Department of Hematology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
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Roberto VP, Surget G, Le Lann K, Mira S, Tarasco M, Guérard F, Poupart N, Laizé V, Stiger-Pouvreau V, Cancela ML. Antioxidant, Mineralogenic and Osteogenic Activities of Spartina alterniflora and Salicornia fragilis Extracts Rich in Polyphenols. Front Nutr 2021; 8:719438. [PMID: 34485367 PMCID: PMC8416452 DOI: 10.3389/fnut.2021.719438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
Osteoporosis is an aging-related disease and a worldwide health issue. Current therapeutics have failed to reduce the prevalence of osteoporosis in the human population, thus the discovery of compounds with bone anabolic properties that could be the basis of next generation drugs is a priority. Marine plants contain a wide range of bioactive compounds and the presence of osteoactive phytochemicals was investigated in two halophytes collected in Brittany (France): the invasive Spartina alterniflora and the native Salicornia fragilis. Two semi-purified fractions, prepared through liquid-liquid extraction, were assessed for phenolic and flavonoid contents, and for the presence of antioxidant, mineralogenic and osteogenic bioactivities. Ethyl acetate fraction (EAF) was rich in phenolic compounds and exhibited the highest antioxidant activity. While S. fragilis EAF only triggered a weak proliferative effect in vitro, S. alterniflora EAF potently induced extracellular matrix mineralization (7-fold at 250 μg/mL). A strong osteogenic effect was also observed in vivo using zebrafish operculum assay (2.5-fold at 10 μg/mL in 9-dpf larvae). Results indicate that polyphenol rich EAF of S. alterniflora has both antioxidant and bone anabolic activities. As an invasive species, this marine plant may represent a sustainable source of molecules for therapeutic applications in bone disorders.
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Affiliation(s)
- Vânia P. Roberto
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Gwladys Surget
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Klervi Le Lann
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Sara Mira
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Marco Tarasco
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
| | - Fabienne Guérard
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Nathalie Poupart
- University of Brest, CNRS, IRD, Ifremer, LEMAR, IUEM, Plouzané, France
| | - Vincent Laizé
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- S-AQUA - Sustainable and Smart Aquaculture Collaborative Laboratory, Olhão, Portugal
| | | | - M. Leonor Cancela
- Centre of Marine Sciences (CCMAR), University of Algarve, Faro, Portugal
- Faculty of Medicine and Biomedical Sciences, University of Algarve, Faro, Portugal
- Algarve Biomedical Center, Faro, Portugal
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Mechanisms of sphingosine-1-phosphate (S1P) signaling on excessive stress-induced root resorption during orthodontic molar intrusion. Clin Oral Investig 2021; 26:1003-1016. [PMID: 34363103 DOI: 10.1007/s00784-021-04084-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 07/15/2021] [Indexed: 12/16/2022]
Abstract
OBJECTIVES The aim of this study was to investigate cementocyte mechanotransduction during excessive orthodontic intrusive force-induced root resorption and the role of S1P signaling in this process. MATERIALS AND METHODS Fifty-four 12-week-old male Wistar rats were randomly divided into 3 groups: control group (Control), intrusive stress application group (Stress), and intrusive stress together with S1PR2-specific antagonist injection group (Stress + JTE). A rat molar intrusion model was established on animals in the Stress and the Stress + JTE groups. The animals in the Stress + JTE group received daily intraperitoneal (i.p.) injection of S1PR2 antagonist JTE-013, while the Control and Stress groups received only the vehicle. Histomorphometric, immunohistochemical, quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analyses were performed after euthanizing of the rats. RESULTS Root resorption was promoted in the Stress group with increased volumes of resorption pits and amounts of molar intrusion compared with the Control group. The expression levels of cementogenic- and cementoclastic-related factors were affected under excessive intrusive force. Immunohistochemical staining and qRT-PCR analysis showed promoted S1P signaling activities during molar intrusion. Western blot analysis indicated decreased nuclear translocation of β-catenin under excessive intrusive force. Through the administration of JTE-013, S1P signaling activity was suppressed and excessive intrusive force-induced root resorption was reversed. The regulation of S1P signaling could also influence the nuclear translocation of β-catenin and the expressions of cementogenic- and cementoclastic-related factors. CONCLUSIONS Root resorption was promoted under excessive orthodontic intrusive force due to the disruption of cementum homeostasis. S1P signaling pathway might play an important role in cementocyte mechanotransduction in this process. CLINICAL RELEVANCE The S1P signaling might be a promising therapeutic target for novel therapeutic approaches to prevent external root resorption caused by excessive orthodontic intrusive force.
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Lee B, Hong S, Kim M, Kim EY, Park HJ, Jung HS, Kim JH, Sohn Y. Lycii radicis cortex inhibits glucocorticoid‑induced bone loss by downregulating Runx2 and BMP‑2 expression. Int J Mol Med 2021; 48:155. [PMID: 34165156 PMCID: PMC8249051 DOI: 10.3892/ijmm.2021.4988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/01/2021] [Indexed: 12/23/2022] Open
Abstract
Lycii radicis cortex (LRC) has been used to regulate high blood pressure, body temperature, pain and bone disorders in East Asia. Glucocorticoids (GCs), also known as steroids, are potent immunity regulators widely used in the treatment of inflammatory diseases. However, despite their effectiveness, GC usage is strictly controlled due to severe side‑effects, such as osteoporosis. However, further research is required as to date, at least to the best of our knowledge, there is no appropriate model to overcome secondary osteoporosis as a side‑effect of GC use. Thus, the aim of the present study was to establish an experimental model of osteoporosis induced by GC. Furthermore, the present study aimed to establish the research methodology for medical evaluations of the effectiveness and side‑effects of GCs. A secondary osteoporosis animal model was established, and the animals were divided into two groups as follows: The allergic contact dermatitis (ACD)‑induced group and the non‑ACD‑induced group. In the ACD‑induced group, a GC topical application group was compared with a GC subcutaneous injection group. The results revealed that the presence of ACD affected the induction of GC‑mediated osteoporosis. Therefore, the group exhibiting induced ACD that was treated with a topical application of GC was selected for examining the side‑effects of GCs. The effects of LRC on secondary osteoporosis were confirmed in vivo and in vitro. The results indicated that LRC regulated dexamethasone‑induced osteoblast apoptotic markers, including caspase‑6, caspase‑9, X‑linked inhibitor of apoptosis, apoptosis inhibitor 1 and apoptosis inhibitor 2, and increased the expression of osteoblast differentiation‑related genes, such as Runt‑related transcription factor 2 and bone morphogenetic protein 2 in the MC3T3E‑1 cell line. LRC also significantly reduced GC‑induced osteoporosis and exerted anti‑inflammatory effects in vivo. In addition, LRC inhibited the reduction of calbindin‑D28k in the kidney. Overall, the results of the present study suggest that the use of LRC alleviates GC‑induced secondary osteoporosis.
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Affiliation(s)
- Bina Lee
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Sooyeon Hong
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Hi-Joon Park
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02-447, Republic of Korea
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Kim M, Kim JH, Hong S, Kwon B, Kim EY, Jung HS, Sohn Y. Effects of Melandrium firmum Rohrbach on RANKL‑induced osteoclast differentiation and OVX rats. Mol Med Rep 2021; 24:610. [PMID: 34184080 PMCID: PMC8258467 DOI: 10.3892/mmr.2021.12248] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/26/2021] [Indexed: 11/06/2022] Open
Abstract
Osteoporosis is a systemic skeletal disease characterized by reduced bone mineral density (BMD), which results in an increased risk of fracture. Melandrium firmum (Siebold & Zucc.) Rohrbach (MFR), 'Wangbulryuhaeng' in Korean, is the dried aerial portion of Melandrii Herba Rohrbach, which is a member of the Caryophyllaceae family and has been used to treat several gynecological conditions as a traditional medicine. However, to the best of our knowledge, the effect of MFR on osteoclast differentiation and osteoporosis has not been assessed. To evaluate the effects of MFR on osteoclast differentiation, tartrate‑resistant acid phosphatase staining, actin ring formation and bone resorption assays were used. Additionally, receptor activator of nuclear factor‑κB ligand‑induced expression of nuclear factor of activated T cell, cytoplasmic 1 (NFATc1) and c‑Fos were measured using western blotting and reverse transcription‑PCR. The expression levels of osteoclast‑related genes were also examined. To further investigate the anti‑osteoporotic effects of MFR in vivo, an ovariectomized (OVX) rat model of menopausal osteoporosis was established. Subsequently, the femoral head was scanned using micro‑computed tomography. The results revealed that MFR suppressed osteoclast differentiation, formation and function. Specifically, MFR reduced the expression levels of osteoclast‑related genes by downregulating transcription factors, such as NFATc1 and c‑Fos. Consistent with the in vitro results, administration of MFR water extract to OVX rats reduced BMD loss, and reduced the expression levels of NFATc1 and cathepsin K in the femoral head. In conclusion, MFR may contribute to alleviate osteoporosis‑like symptoms. These results suggested that MFR may exhibit potential for the prevention and treatment of postmenopausal osteoporosis.
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Affiliation(s)
- Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Sooyeon Hong
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Boguen Kwon
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
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Kim JH, Kim M, Hong S, Kim EY, Lee H, Jung HS, Sohn Y. Albiflorin Promotes Osteoblast Differentiation and Healing of Rat Femoral Fractures Through Enhancing BMP-2/Smad and Wnt/β-Catenin Signaling. Front Pharmacol 2021; 12:690113. [PMID: 34349649 PMCID: PMC8327266 DOI: 10.3389/fphar.2021.690113] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 07/02/2021] [Indexed: 12/14/2022] Open
Abstract
Fracture healing is related to osteogenic differentiation and mineralization. Recently, due to the unwanted side effects and clinical limitations of existing treatments, various natural product-based chemical studies have been actively conducted. Albiflorin is a major ingredient in Paeonia lactiflora, and this study investigated its ability to promote osteogenic differentiation and fracture healing. To demonstrate the effects of albiflorin on osteoblast differentiation and calcified nodules, alizarin red S staining and von Kossa staining were used in MC3T3-E1 cells. In addition, BMP-2/Smad and Wnt/β-catenin mechanisms known as osteoblast differentiation mechanisms were analyzed through RT-PCR and western blot. To investigate the effects of albiflorin on fracture healing, fractures were induced using a chainsaw in the femur of Sprague Dawley rats, and then albiflorin was intraperitoneally administered. After 1, 2, and 3 weeks, bone microstructure was analyzed using micro-CT. In addition, histological analysis was performed by staining the fractured tissue, and the expression of osteogenic markers in serum was measured. The results demonstrated that albiflorin promoted osteoblastogenesis and the expression of RUNX2 by activating BMP-2/Smad and Wnt/β-catenin signaling in MC3T3-E1 cells. In addition, albiflorin upregulated the expression of various osteogenic genes, such as alkaline phosphatase, OCN, bone sialoprotein, OPN, and OSN. In the femur fracture model, micro-CT analysis showed that albiflorin played a positive role in the formation of callus in the early stage of fracture recovery, and histological examination proved to induce the expression of osteogenic genes in femur tissue. In addition, the expression of bone-related genes in serum was also increased. This suggests that albiflorin promotes osteogenesis, bone calcification and bone formation, thereby promoting the healing of fractures in rats.
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Affiliation(s)
- Jae-Hyun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Minsun Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - SooYeon Hong
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Eun-Young Kim
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyangsook Lee
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Hyuk-Sang Jung
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Youngjoo Sohn
- Department of Anatomy, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
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Kang EY, Kim HK, Jung JY, Kim JH, Woo TK, Choi JI, Kim JH, Ahn C, Lee HG, Go GW. Combined Extract of Leonurus japonicus Houtt, Eclipta prostrata L., and Pueraria lobata Ohwi Improved Hot Flashes and Depression in an Ovariectomized Rat Model of Menopause. Foods 2021; 10:foods10010180. [PMID: 33477405 PMCID: PMC7829883 DOI: 10.3390/foods10010180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 01/13/2021] [Accepted: 01/13/2021] [Indexed: 12/14/2022] Open
Abstract
Menopause leads to ovarian hormone loss, which causes symptoms such as weight gain, hot flashes, and depression. Exploring nutraceuticals is important for treating menopausal symptoms that extensively impact women's quality of life. We hypothesized that a combination of Leonurus japonicus Houtt, Eclipta prostrata L., and Pueraria lobata Ohwi (LEPE) would alleviate menopausal symptoms in an ovariectomized menopausal rat model. Bilateral ovariectomy was performed and animals were assigned to five groups: (1) Sham, (2) Vehicle, (-) Control, (3) LEPE (100 mg/kg bw), (4) LEPE (200 mg/kg bw), and (5) Estradiol (3 μg/kg bw). LEPE was orally administered daily for 12 weeks. LEPE supplementation did not affect growth performance (body weight and feed intake) or body composition (lean mass and fat in tissue). LEPE did not cause deviations in aspartate aminotransferase, alanine aminotransferase, estradiol, and follicle-stimulating hormone levels, indicating no hepatotoxicity or endocrine disturbance. LEPE decreased type I collagen (CTX-1) but did not affect bone mineral density or osteocalcin. LEPE decreased tail temperature and increased rectal temperature, improving menopause-related vasomotor symptoms. Furthermore, LEPE ameliorated depression-related behavior, including in forced swimming and tail suspension tests. Thus, LEPE may improve menopausal symptoms by enhancing vasomotor symptoms and depression in an ovariectomized rat menopause model.
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Affiliation(s)
- Eun Young Kang
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
| | - Hyun Kyung Kim
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
| | - Ji Yeon Jung
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
| | - Ji Hyun Kim
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
| | - Tan Kyung Woo
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
| | - Jeong In Choi
- Research and Development Center, Nong Shim Co., Ltd., Seoul 07057, Korea; (J.I.C.); (J.H.K.); (C.A.)
| | - Jong Hoon Kim
- Research and Development Center, Nong Shim Co., Ltd., Seoul 07057, Korea; (J.I.C.); (J.H.K.); (C.A.)
| | - Changwon Ahn
- Research and Development Center, Nong Shim Co., Ltd., Seoul 07057, Korea; (J.I.C.); (J.H.K.); (C.A.)
| | - Hyeon Gyu Lee
- Korean Living Science Research Center, Hanyang University, Seoul 04763, Korea
- Correspondence: (H.G.L.); (G.-W.G.); Tel.: +82-2-2220-1201 (H.G.L.); +82-2-2220-1206 (G.-W.G.)
| | - Gwang-Woong Go
- Department of Food and Nutrition, Hanyang University, Seoul 04763, Korea; (E.Y.K.); (H.K.K.); (J.Y.J.); (J.H.K.); (T.K.W.)
- Correspondence: (H.G.L.); (G.-W.G.); Tel.: +82-2-2220-1201 (H.G.L.); +82-2-2220-1206 (G.-W.G.)
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Nam HH, Lee AY, Seo YS, Park I, Yang S, Chun JM, Moon BC, Song JH, Kim JS. Three Scrophularia Species ( Scrophularia buergeriana, S. koraiensis, and S. takesimensis) Inhibit RANKL-Induced Osteoclast Differentiation in Bone Marrow-Derived Macrophages. PLANTS 2020; 9:plants9121656. [PMID: 33256150 PMCID: PMC7760964 DOI: 10.3390/plants9121656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 12/15/2022]
Abstract
Scrophulariae Radix, derived from the dried roots of Scrophularia ningpoensis Hemsl. or S. buergeriana Miq, is a traditional herbal medicine used in Asia to treat rheumatism, arthritis, and pharyngalgia. However, the effects of Scrophularia buergeriana, S. koraeinsis, and S. takesimensis on osteoclast formation and bone resorption remain unclear. In this study, we investigated the morphological characteristics and harpagoside content of S. buergeriana, S. koraiensis, and S. takesimensis, and compared the effects of ethanol extracts of these species using nuclear factor (NF)-κB ligand (RANKL)-mediated osteoclast differentiation. The harpagoside content of the three Scrophularia species was analyzed by high-performance liquid chromatography–mass spectrometry (HPLC/MS). Their therapeutic effects were evaluated by tartrate-resistant acid phosphatase (TRAP)-positive cell formation and bone resorption in bone marrow-derived macrophages (BMMs) harvested from ICR mice. We confirmed the presence of harpagoside in the Scrophularia species. The harpagoside content of S. buergeriana, S. koraiensis, and S. takesimensis was 1.94 ± 0.24 mg/g, 6.47 ± 0.02 mg/g, and 5.50 ± 0.02 mg/g, respectively. Treatment of BMMs with extracts of the three Scrophularia species inhibited TRAP-positive cell formation in a dose-dependent manner. The area of hydroxyapatite-absorbed osteoclasts was markedly decreased after treatment with the three Scrophularia species extracts. Our results indicated that the three species of the genus Scrophularia might exert preventive effects on bone disorders by inhibiting osteoclast differentiation and bone resorption, suggesting that these species may have medicinal and functional value.
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Wieczfinska J, Sitarek P, Kowalczyk T, Pawliczak R. Leonurus sibiricus root extracts decrease airway remodeling markers expression in fibroblasts. Clin Exp Immunol 2020; 202:28-46. [PMID: 32562256 DOI: 10.1111/cei.13481] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/27/2020] [Accepted: 06/12/2020] [Indexed: 12/15/2022] Open
Abstract
Bronchial asthma is believed to be provoked by the interaction between airway inflammation and remodeling. Airway remodeling is a complex and poorly understood process, and controlling it appears key for halting the progression of asthma and other obstructive lung diseases. Plants synthesize a number of valuable compounds as constitutive products and as secondary metabolites, many of which have curative properties. The aim of this study was to evaluate the anti-remodeling properties of extracts from transformed and transgenic Leonurus sibiricus roots with transformed L. sibiricus roots extract with transcriptional factor AtPAP1 overexpression (AtPAP1). Two fibroblast cell lines, Wistar Institute-38 (WI-38) and human fetal lung fibroblast (HFL1), were incubated with extracts from transformed L. sibiricus roots (TR) and roots with transcriptional factor AtPAP1 over-expression (AtPAP1 TR). Additionally, remodeling conditions were induced in the cultures with rhinovirus 16 (HRV16). The expressions of metalloproteinase 9 (MMP)-9, tissue inhibitor of metalloproteinases 1 (TIMP-1), arginase I and transforming growth factor (TGF)-β were determined by quantitative polymerase chain reaction (qPCR) and immunoblotting methods. AtPAP1 TR decreased arginase I and MMP-9 expression with no effect on TIMP-1 or TGF-β mRNA expression. This extract also inhibited HRV16-induced expression of arginase I, MMP-9 and TGF-β in both cell lines (P < 0·05) Our study shows for the first time to our knowledge, that transformed AtPAP1 TR extract from L. sibiricus root may affect the remodeling process. Its effect can be attributed an increased amount of phenolic acids such as: chlorogenic acid, caffeic acid or ferulic acid and demonstrates the value of biotechnology in medicinal research.
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Affiliation(s)
- J Wieczfinska
- Department of Immunopathology, Medical University of Lodz, Lodz, Poland
| | - P Sitarek
- Department of Biology and Pharmaceutical Botany, Medical University of Lodz, Lodz, Poland
| | - T Kowalczyk
- Department of Molecular Biotechnology and Genetics, University of Lodz, Lodz, Poland
| | - R Pawliczak
- Department of Immunopathology, Medical University of Lodz, Lodz, Poland
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21
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Qian W, Zhu Y, Wu M, Guo Q, Wu Z, Lobie PE, Zhu T. Linc00668 Promotes Invasion and Stem Cell-Like Properties of Breast Cancer Cells by Interaction With SND1. Front Oncol 2020; 10:88. [PMID: 32117742 PMCID: PMC7033544 DOI: 10.3389/fonc.2020.00088] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 01/17/2020] [Indexed: 12/27/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are reported to be involved in breast cancer progression. Herein, we observed that the expression of Linc00668 was increased in breast cancer compared to normal tissue. The patients with high Linc00668 expression exhibited an association with a higher metastatic risk. We demonstrated that forced expression of Linc00668 enhanced, whereas depletion of Linc00668 diminished invasion and self-renewal of breast cancer cells as well as resistance to doxorubicin (Dox). Further mechanistic studies revealed that Linc00668 associated with staphylococcal nuclease domain-containing 1 (SND1) and regulated the expression of downstream genes. Linc00668 depletion led to reduced expression of the downstream target of SND1 and further attenuated the self-renewal capacity of breast cancer cells. Our observations suggest that Linc00668 promotes metastasis, and chemotherapeutic resistance in breast cancer by interacting with SND1. Therefore, Linc00668 may serve as a potential therapeutic modulator in breast cancer treatment.
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Affiliation(s)
- Wenchang Qian
- Department of Oncology of the First Affiliated Hospital, Division of Life Science and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
| | - Yong Zhu
- Department of Oncology of the First Affiliated Hospital, Division of Life Science and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
| | - Mingming Wu
- Department of Oncology of the First Affiliated Hospital, Division of Life Science and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China
| | - Qianying Guo
- Department of Pathology, Anhui Medical University, Hefei, China
| | - Zhengsheng Wu
- Department of Pathology, Anhui Medical University, Hefei, China
| | - Peter E Lobie
- Tsinghua Shenzhen International Graduate School, Tsinghua-Berkley Shenzhen Institute, Tsinghua University, Shenzhen, China.,Shenzhen Bay Laboratory, Shenzhen, China
| | - Tao Zhu
- Department of Oncology of the First Affiliated Hospital, Division of Life Science and Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, University of Science and Technology of China, Hefei, China.,Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China
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