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Feng LJ, Fan XH, Shao LT, Zhang YP, Hu YP, Li Y, Hou XL, Zhang L, Tian FM. Wnt5a deficiency in osteocalcin-expressing cells could not alleviate the osteoarthritic phenotype in a mouse model of post-traumatic osteoarthritis. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2024; 27:671-677. [PMID: 38645498 PMCID: PMC11024411 DOI: 10.22038/ijbms.2024.71417.15527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 11/26/2023] [Indexed: 04/23/2024]
Abstract
Objectives Wnt5a, which regulates the activities of osteoblasts and osteoclasts, is reportedly overexpressed in osteoarthritis (OA) tissues. The purpose of this study was to elucidate its role in the development of OA by deleting Wnt5a in osteocalcin (OCN)-expressing cells. Materials and Methods Knee OA was induced by anterior cruciate ligament transection (ACLT) in OCN-Cre;Wnt5afl/fl knockout (Wnt5a-cKO) mice and control littermates. Eight weeks after surgery, histological changes, cell apoptosis, and matrix metabolism of cartilage were evaluated by toluidine blue, TUNEL staining, and im-immunohistochemistry analyses, respectively. In addition, the subchondral bone microarchitecture of mice was examined by micro-computed tomography (micro-CT). Results Histological scores show substantial cartilage degeneration occurred in ACLT knees, coupled with decreased collagen type II expression and enhanced matrix metalloproteinase 13 expression, as well as higher proportions of apoptotic cells. Micro-CT results show that ACLT resulted in decreased bone mineral density, bone volume/trabecular volume, trabecular number, and structure model index of subchondral bones in both Wnt5a-cKO and control littermates; although Wnt5a-cKO mice display lower BMD and BV/TV values, no significant difference was observed between Wnt5a-cKO and control mice for any of these values. Conclusion Our findings indicate that Wnt5a deficiency in OCN-expressing cells could not prevent an osteoarthritic phenotype in a mouse model of post-traumatic OA.
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Affiliation(s)
- Lin-Jie Feng
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, P.R. China
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
- Trauma Department of the 982 Hospital of The Joint Service Support Force of the Chinese people’s Liberation Army, Tangshan, Hebei, P.R. China
| | - Xin-Hao Fan
- Department of Stomatology, Kailuan General Hospital, Tangshan, China
| | - Li-Tao Shao
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, P.R. China
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
| | - Yun-Peng Zhang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
| | - Yun-Peng Hu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
| | - Yue Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
| | - Xiao-Li Hou
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
| | - Liu Zhang
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, Hebei, P.R. China
- Department of Orthopedic Surgery, Emergency General Hospital, Beijing, 100028, China
| | - Fa-Ming Tian
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, P.R. China
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Wen Y, Latham CM, Moore AN, Thomas NT, Lancaster BD, Reeves KA, Keeble AR, Fry CS, Johnson DL, Thompson KL, Noehren B, Fry JL. Vitamin D status associates with skeletal muscle loss after anterior cruciate ligament reconstruction. JCI Insight 2023; 8:e170518. [PMID: 37856482 PMCID: PMC10795826 DOI: 10.1172/jci.insight.170518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/17/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUNDAlthough 25-hydroxyvitamin D [25(OH)D] concentrations of 30 ng/mL or higher are known to reduce injury risk and boost strength, the influence on anterior cruciate ligament reconstruction (ACLR) outcomes remains unexamined. This study aimed to define the vitamin D signaling response to ACLR, assess the relationship between vitamin D status and muscle fiber cross-sectional area (CSA) and bone density outcomes, and discover vitamin D receptor (VDR) targets after ACLR.METHODSTwenty-one young, healthy, physically active participants with recent ACL tears were enrolled (17.8 ± 3.2 years, BMI 26.0 ± 3.5 kg/m2). Data were collected through blood samples, vastus lateralis biopsies, dual energy x-ray bone density measurements, and isokinetic dynamometer measures at baseline, 1 week, 4 months, and 6 months after ACLR. The biopsies facilitated CSA, Western blotting, RNA-seq, and VDR ChIP-seq analyses.RESULTSACLR surgery led to decreased circulating bioactive vitamin D and increased VDR and activating enzyme expression in skeletal muscle 1 week after ACLR. Participants with less than 30 ng/mL 25(OH)D levels (n = 13) displayed more significant quadriceps fiber CSA loss 1 week and 4 months after ACLR than those with 30 ng/mL or higher (n = 8; P < 0.01 for post hoc comparisons; P = 0.041 for time × vitamin D status interaction). RNA-seq and ChIP-seq data integration revealed genes associated with energy metabolism and skeletal muscle recovery, potentially mediating the impact of vitamin D status on ACLR recovery. No difference in bone mineral density losses between groups was observed.CONCLUSIONCorrecting vitamin D status prior to ACLR may aid in preserving skeletal muscle during recovery.FUNDINGNIH grants R01AR072061, R01AR071398-04S1, and K99AR081367.
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Affiliation(s)
- Yuan Wen
- Center for Muscle Biology, College of Health Sciences
- Department of Physiology, College of Medicine
- Division of Biomedical Informatics, Department of Internal Medicine, College of Medicine
| | | | | | | | | | | | - Alexander R. Keeble
- Center for Muscle Biology, College of Health Sciences
- Department of Physiology, College of Medicine
| | | | | | - Katherine L. Thompson
- Dr. Bing Zhang Department of Statistics, University of Kentucky, Lexington, Kentucky, USA
| | - Brian Noehren
- Center for Muscle Biology, College of Health Sciences
- Department of Orthopaedic Surgery & Sports Medicine, and
| | - Jean L. Fry
- Center for Muscle Biology, College of Health Sciences
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Knurr KA, Lyon JP, Haack CR, Kliethermes SA, Cobian DG, Stiffler-Joachim MR, Binkley NC, Scerpella TA, Heiderscheit BC. Quadriceps Performance and Running Biomechanics Influence Femur BMD Changes after ACL Reconstruction in Collegiate Athletes. Med Sci Sports Exerc 2023; 55:1540-1547. [PMID: 37101347 PMCID: PMC10523868 DOI: 10.1249/mss.0000000000003186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
PURPOSE Reduced bone mineral density of the distal femur (BMD DF ) can persist long term after anterior cruciate ligament reconstruction (ACLR), even in athletes who return to high levels of competition. These deficits may have implications for the onset and progression of knee osteoarthritis. It is unknown if clinically modifiable factors are associated with losses in BMD DF . This study evaluated the potential influence of knee extensor peak torque (PT), rate of torque development (RTD), as well as peak knee flexion (PKF) angle and peak knee extensor moment (PKEM) during running, on longitudinal changes in BMD DF post-ACLR. METHODS After ACLR, 57 Division I collegiate athletes underwent serial whole-body dual-energy x-ray absorptiometry (DXA) scans between 3 and 24 months post-ACLR. Of these, 43 athletes also had isometric knee extensor testing (21 female, 105 observations), and 54 had running analyses (26 female, 141 observations). Linear mixed-effects models, controlling for sex, assessed the influence of surgical limb quadriceps performance (PT and RTD), running mechanics (PKF and PKEM), and time post-ACLR on BMD DF (5% and 15% of femur length). Simple slope analyses were used to explore interactions. RESULTS Athletes with RTD less than 7.20 (N·m)·kg -1 ·s -1 (mean) at 9.3 months post-ACLR demonstrated significant decreases in 15% BMD DF over time ( P = 0.03). Athletes with PKEM during running less than 0.92 (N·m)·kg -1 (-1 SD below mean) at 9.8 months post-ACLR demonstrated significant decreases in 15% BMD DF over time ( P = 0.02). Significant slopes were not detected at -1 SD below the mean for PT (1.75 (N·m)·kg -1 , P = 0.07) and PKF (31.3°, P = 0.08). CONCLUSIONS Worse quadriceps RTD and running PKEM were associated with a greater loss of BMD DF between 3 and 24 months post-ACLR.
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Affiliation(s)
- Keith A. Knurr
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
- Department of Medicine – Division of Geriatrics, University of Wisconsin-Madison, Madison, WI
| | - James P. Lyon
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Colten R. Haack
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Stephanie A. Kliethermes
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Daniel G. Cobian
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Mikel R. Stiffler-Joachim
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Neil C. Binkley
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
- Department of Medicine – Division of Geriatrics, University of Wisconsin-Madison, Madison, WI
- University of Wisconsin Osteoporosis Clinical Research Program, Madison, WI
| | - Tamara A. Scerpella
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
| | - Bryan C. Heiderscheit
- Department of Orthopedics & Rehabilitation, University of Wisconsin-Madison, Madison, WI
- Badger Athletic Performance Program, University of Wisconsin-Madison, Madison, WI
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI
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