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郭 琴, 郭 苑, 廖 凤, 陶 莹. [Tanshinone ⅡA Ameliorates Cartilage Degeneration in Ovariectomized Rats by Regulating TGF-β1/Smad2/MMPs Signaling Pathway]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:878-885. [PMID: 39170014 PMCID: PMC11334281 DOI: 10.12182/20240760204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Indexed: 08/23/2024]
Abstract
Objective To investigate the ameliorative effect of tanshinone ⅡA (Tan) on osteoarticular degeneration in ovariectomized rats (a postmenopausal estrogen deficiency model) and the mechanisms involved. Methods Eight-week-old female Sprague Dawley (SD) rats were randomly allocated to 5 groups (n=10 each), including a Sham operation group (Sham), an ovariectomy group (OVX), and low, medium, and high-dose Tan groups. Eight weeks after bilateral ovariectomy, the rats in the low, medium, and high-dose Tan groups were treated with Tan at the doses of 5, 10, and 20 mg/kg for a duration of 28 days. Evaluation of the rat articular cartilage was performed using X-ray imaging, anatomical observation, hematoxylin and eosin (H&E) staining, and toluidine blue staining. Immunohistochemistry was performed to assess the expression levels of transforming growth factor β1 (TGF-β1), phosphorylated-smad2 (p-Smad2), type Ⅱ collagen (CⅡ), matrix metalloproteinase 9 (MMP-9), and MMP-13 in the cartilage tissue. Results The knee joints of the OVX rats exhibited narrowed joint spaces, osteophyte formation, cartilage erosion or even localized cartilage cracks, faded methylene blue staining on the cartilage surface, disordered arrangement of chondrocytes, unclear or interrupted tidal line, and increased Kellgren-Lawrence grading, Pelletier grading, Mankin grading, and OARSI scores compared to those of the Sham group (P<0.01), as revealed by X-ray imaging, anatomical observation, and histological examination results. Tan ameliorated the degenerative changes in the knee joint caused by OVX in a dose-dependent manner while improving Kellgren-Lawrence grading, Pelletier grading, Mankin grading, and OARSI scores. Immunohistochemistry findings showed that TGF-β1, p-Smad2, and CⅡ expression levels were significantly increased (P<0.01), while MMP-9 and MMP-13 expression levels were significantly decreased (P<0.01) in the articular cartilage of the Tan group compared to those of the OVX group, with all these effects being dose-dependent. Conclusion Tan mitigates articular cartilage degeneration in ovariectomized rats, which may be related to the regulation of TGF-β1/Smad2/MMPs signaling pathway.
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Affiliation(s)
- 琴 郭
- 广东药科大学附属第一医院/第一临床医学院 妇产科 (广州 510080)Department of Obstetrics and Gynecology, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 苑莉 郭
- 广东药科大学附属第一医院/第一临床医学院 妇产科 (广州 510080)Department of Obstetrics and Gynecology, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 凤儿 廖
- 广东药科大学附属第一医院/第一临床医学院 妇产科 (广州 510080)Department of Obstetrics and Gynecology, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - 莹 陶
- 广东药科大学附属第一医院/第一临床医学院 妇产科 (广州 510080)Department of Obstetrics and Gynecology, The First Affiliated Hospital/The First Clinical Medicine School of Guangdong Pharmaceutical University, Guangzhou 510080, China
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Liu J, Zhou J, Huang X, Yin L, Zhou L, Liao Y, Sun G, Zhong P, Peng X, Sun Z. Protective effects of pulsed electromagnetic field therapy attenuates autophagy and apoptosis in osteoporotic osteoarthritis model rats by activating PPARγ. Electromagn Biol Med 2024; 43:61-70. [PMID: 38347683 DOI: 10.1080/15368378.2024.2314108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 11/25/2023] [Indexed: 05/01/2024]
Abstract
Osteoporotic osteoarthritis (OPOA) is a specific phenotype of OA with high incidence and severe cartilage damage. This study aimed to explore the protective efficacy of PEMF on the progression of OPOA and observed the effects of PEMF on PPARγ, autophagy- and apoptosis-related proteins in OPOA rats. Rats were randomly divided into three groups: control group, OPOA group, and PEMF group (n = 6). One week after surgery, the rats in PEMF group were subjected to PEMF (3.82 mT, 8 Hz, 40 min/day and 5 day/week) for 12 weeks. Results showed that PEMF retarded cartilage degeneration and bone loss, as evidenced by pathological staining image, decreased MMP-13 expression and increased bone mineral density. PEMF inhibited the serum levels of inflammatory cytokines, and the expressions of caspase-3 and caspase-8, while upregulated the expression of PPARγ. Moreover, PEMF significantly improved the autophagy disorders, represented by decrease expressions of Beclin-1, P62, and LC3B. The research demonstrates that PEMF can effectively prevent cartilage and subchondral bone destruction in OPOA rats. The potential mechanism may be related to upregulation of PPARγ, inhibition of chondrocyte apoptosis and inflammation, and improvement of autophagy disorder. PEMF therapy thus shows promising application prospects in the treatment of postmenopausal OA.
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Affiliation(s)
- Jing Liu
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jun Zhou
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xiarong Huang
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Linwei Yin
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Long Zhou
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yang Liao
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Guanghua Sun
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Peirui Zhong
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Xinke Peng
- The First Affiliated Hospital, Rehabilitation Medicine Center, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Department of Rehabilitation, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- The First Affiliated Hospital, Rehabilitation Laboratory, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Zhilu Sun
- The First Affiliated Hospital, Department of Emergency, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Wada H, Aso K, Izumi M, Ikeuchi M. The effect of postmenopausal osteoporosis on subchondral bone pathology in a rat model of knee osteoarthritis. Sci Rep 2023; 13:2926. [PMID: 36804438 PMCID: PMC9941090 DOI: 10.1038/s41598-023-29802-7] [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: 04/20/2022] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
This study aimed to investigate the additional effect of ovariectomy-induced osteoporosis (OP) on the pathology of knee osteoarthritis (OA) in a rat meniscectomized model, particularly focusing on subchondral bone changes and pain behaviour. Rats were divided into four groups, sham, OP, OA, OP plus OA, and assessed for histology, osteoclast activity, subchondral bone microstructure, and pain-related behaviour. Rats with OP plus OA had significantly increased calcified cartilage and subchondral bone damage scores, increased densities of subchondral osteoclasts in the weight-bearing area, and more porous subchondral trabecular bone compared with rats with OA. Loss of tidemark integrity was observed most frequently in rats with OP plus OA. The density of subchondral osteoclasts correlated with the calcified cartilage and subchondral bone damage score in rats with OA (OA and OP plus OA). No significant differences in the receptor activator of nuclear factor-kappa B ligand (RANKL)/osteoprotegerin (OPG) expression ratio in subchondral bone and pain-related behavioural tests were observed between rats with OA and rats with OP plus OA. In rats with OA, coexisting OP potentially aggravated OA pathology mainly in calcified cartilage and subchondral trabecular bone by increasing subchondral osteoclast activity.
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Affiliation(s)
- Hiroyuki Wada
- grid.278276.e0000 0001 0659 9825Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 185-1 Oko-cho Kohasu, Nankoku, 783-8505 Japan
| | - Koji Aso
- Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 185-1 Oko-cho Kohasu, Nankoku, 783-8505, Japan.
| | - Masashi Izumi
- grid.278276.e0000 0001 0659 9825Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 185-1 Oko-cho Kohasu, Nankoku, 783-8505 Japan
| | - Masahiko Ikeuchi
- grid.278276.e0000 0001 0659 9825Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, 185-1 Oko-cho Kohasu, Nankoku, 783-8505 Japan
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胡 华, 李 连, 刘 艳, 王 书, 谢 双, 孙 建. [Effect of resveratrol on high mobility group box-1 protein signaling pathway in cartilage endplate degeneration caused by inflammation]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2022; 36:461-469. [PMID: 35426287 PMCID: PMC9011066 DOI: 10.7507/1002-1892.202110084] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/23/2022] [Indexed: 01/24/2023]
Abstract
Objective To investigate the effect of resveratrol (RES) on inflammation-induced cartilage endplate (CEP) degeneration, and its regulatory mechanism on high mobility group box-1 protein (HMGB1) signaling pathway. Methods The intervertebral CEP cells of Sprague Dawley (SD) rats aged 3 weeks were extracted and identified by toluidine blue staining and immunofluorescence staining of rabbit anti-rat collagen type Ⅱ. The cell counting kit 8 (CCK-8) method was used to screen the optimal concentration of RES on intervertebral CEP cells. Gene chip analysis was used to determine the target of RES on intervertebral CEP cells. Interleukin 1β (IL-1β) was used to construct the intervertebral CEP cell degeneration model caused by inflammation and the 7-8-week-old SD rat intervertebral disc degeneration model, and pcDNA3.1-HMGB1 (pcDNA3.1) was used as the control of RES effect. Flow cytometry and TUNEL staining were used to detect the apoptotic rate of intervertebral CEP cells and rat intervertebral disc tissue cells, respectively. ELISA kit was used to detect the content of interleukin 10 (IL-10) and tumor necrosis factor α (TNF-α) in the cell supernatant and rat serum. Western blot was used to detect the expressions of HMGB1, extracellular signal-regulated protein kinase (ERK), phosphorylated ERK (p-ERK), B cell lymphoma/leukemia 2 gene (Bcl-2), and Bcl-2-associated X protein (Bax). Results The extracted cells were identified as rat intervertebral CEP cells. CCK-8 method screened out the highest activity of intervertebral CEP cells treated with 30 μmol/L RES. The gene chip analysis confirmed that the HMGB1-ERK signal was the target of RES. Both cell experiments and animal experiments showed that RES treatment can significantly down-regulate the apoptosis rate of intervertebral CEP cells, inhibit the release of TNF-α, and increase the content of IL-10; and down-regulate the expressions of HMGB1, p-ERK, and Bax, and increase Bcl-2; and pcDNA3.1 could partially reverse these effects of RES, and the differences were all significant (P<0.05). Conclusion RES can significantly inhibit the apoptosis of intervertebral CEP cells induced by inflammation, which is related to inhibiting the expression of HMGB1.
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Affiliation(s)
- 华 胡
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
| | - 连泰 李
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
| | - 艳伟 刘
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
| | - 书君 王
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
| | - 双喜 谢
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
| | - 建君 孙
- 承德医学院附属医院骨伤科(河北承德 067000)Department of Orthopedics, Affiliated Hospital of Chengde Medical College, Chengde Hebei, 067000, P. R. China
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