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Tian JS, Tay A. Progress on Electro-Enhancement of Cell Manufacturing. SMALL METHODS 2024; 8:e2301281. [PMID: 38059759 DOI: 10.1002/smtd.202301281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/09/2023] [Indexed: 12/08/2023]
Abstract
With the long persistence of complex, chronic diseases in society, there is increasing motivation to develop cells as living medicine to treat diseases ranging from cancer to wounds. While cell therapies can significantly impact healthcare, the shortage of starter cells meant that considerable raw materials must be channeled solely for cell expansion, leading to expensive products with long manufacturing time which can prevent accessibility by patients who either cannot afford the treatment or have highly aggressive diseases and cannot wait that long. Over the last three decades, there has been increasing knowledge on the effects of electrical modulation on proliferation, but to the best of the knowledge, none of these studies went beyond how electro-control of cell proliferation may be extended to enhance industrial scale cell manufacturing. Here, this review is started by discussing the importance of maximizing cell yield during manufacturing before comparing strategies spanning biomolecular/chemical/physical to modulate cell proliferation. Next, the authors describe how factors governing invasive and non-invasive electrical stimulation (ES) including capacitive coupling electric field may be modified to boost cell manufacturing. This review concludes by describing what needs to be urgently performed to bridge the gap between academic investigation of ES to industrial applications.
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Affiliation(s)
- Johann Shane Tian
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
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Kim M, Oh BY, Lee JS, Yoon D, Kim YR, Chun W, Kim JW, Son IT. Differentiation of Adipose-Derived Stem Cells into Smooth Muscle Cells in an Internal Anal Sphincter-Targeting Anal Incontinence Rat Model. J Clin Med 2023; 12:jcm12041632. [PMID: 36836167 PMCID: PMC9959483 DOI: 10.3390/jcm12041632] [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: 12/16/2022] [Revised: 02/05/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
OBJECTIVE Studies on development of an anal incontinence (AI) model targeting smooth muscle cells (SMCs) of the internal anal sphincter (IAS) have not been reported. The differentiation of implanted human adipose-derived stem cells (hADScs) into SMCs in an IAS-targeting AI model has also not been demonstrated. We aimed to develop an IAS-targeting AI animal model and to determine the differentiation of hADScs into SMCs in an established model. MATERIALS AND METHODS The IAS-targeting AI model was developed by inducing cryoinjury at the inner side of the muscular layer via posterior intersphincteric dissection in Sprague-Dawley rats. Dil-stained hADScs were implanted at the IAS injury site. Multiple markers for SMCs were used to confirm molecular changes before and after cell implantation. Analyses were performed using H&E, immunofluorescence, Masson's trichrome staining, and quantitative RT-PCR. RESULTS Impaired smooth muscle layers accompanying other intact layers were identified in the cryoinjury group. Specific SMC markers, including SM22α, calponin, caldesmon, SMMHC, smoothelin, and SDF-1 were significantly decreased in the cryoinjured group compared with levels in the control group. However, CoL1A1 was increased significantly in the cryoinjured group. In the hADSc-treated group, higher levels of SMMHC, smoothelin, SM22α, and α-SMA were observed at two weeks after implantation than at one week after implantation. Cell tracking revealed that Dil-stained cells were located at the site of augmented SMCs. CONCLUSIONS This study first demonstrated that implanted hADSc restored impaired SMCs at the injury site, showing stem cell fate corresponding to the established IAS-specific AI model.
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Affiliation(s)
- Minsung Kim
- Department of Surgery, Hallym Sacred Heart Hospital, College of Medicine, Hallym University, Anyang 14068, Republic of Korea
| | - Bo-Young Oh
- Department of Surgery, Hallym Sacred Heart Hospital, College of Medicine, Hallym University, Anyang 14068, Republic of Korea
| | - Ji-Seon Lee
- Burn Institute, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07247, Republic of Korea
| | - Dogeon Yoon
- Burn Institute, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07247, Republic of Korea
| | - You-Rin Kim
- Burn Institute, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07247, Republic of Korea
| | - Wook Chun
- Burn Institute, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07247, Republic of Korea
- Department of Surgery, Hangang Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07247, Republic of Korea
| | - Jong Wan Kim
- Department of Surgery, Dontan Sacred Heart Hospital, College of Medicine, Hallym University, Hwaseong-si 18450, Republic of Korea
| | - Il Tae Son
- Department of Surgery, Hallym Sacred Heart Hospital, College of Medicine, Hallym University, Anyang 14068, Republic of Korea
- Institute for Regenerative Medicine, Hallym Sacred Heart Hospital, College of Medicine, Hallym University, Anyang 14068, Republic of Korea
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Kim M, Oh BY, Lee JS, Yoon D, Chun W, Son IT. A systematic review of translation and experimental studies on internal anal sphincter for fecal incontinence. Ann Coloproctol 2022; 38:183-196. [PMID: 35678021 PMCID: PMC9263305 DOI: 10.3393/ac.2022.00276.0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/10/2022] [Indexed: 12/05/2022] Open
Abstract
The complexity in the molecular mechanism of the internal anal sphincter (IAS) limits preclinical or clinical outcomes of fecal incontinence (FI) treatment. So far, there are no systematic reviews of IAS translation and experimental studies that have been reported. This systematic review aims to provide a comprehensive understanding of IAS critical role in FI. Previous studies revealed the key pathway for basal tone and relaxation of IAS in different properties as follows; calcium, Rho-associated, coiled-coil containing serine/threonine kinase, aging-associated IAS dysfunction, oxidative stress, renin-angiotensin-aldosterone, cyclooxygenase, and inhibitory neurotransmitters. Previous studies have reported improved functional outcomes of cellular treatment for regeneration of dysfunctional IAS, using various stem cells, but did not demonstrate the interrelationship between those results and basal tone or relaxation-related molecular pathway of IAS. Furthermore, these results have lower specificity for IAS-incontinence due to the included external anal sphincter or nerve injury regardless of the cell type. An acellular approach using bioengineered IAS showed a physiologic response of basal tone and relaxation response similar to human IAS. However, in both cellular and acellular approaches, the lack of human IAS data still hampers clinical application. Therefore, the IAS regeneration presents more challenges and warrants more advances.
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Affiliation(s)
- Minsung Kim
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Bo-Young Oh
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Ji-Seon Lee
- Burn Institute, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Dogeon Yoon
- Burn Institute, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Wook Chun
- Burn Institute, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.,Department of Surgery, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Il Tae Son
- Department of Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.,Institute for Regenerative Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
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Electrical Stimulation and Cellular Behaviors in Electric Field in Biomedical Research. MATERIALS 2021; 15:ma15010165. [PMID: 35009311 PMCID: PMC8746014 DOI: 10.3390/ma15010165] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/15/2021] [Accepted: 12/20/2021] [Indexed: 12/20/2022]
Abstract
Research on the cellular response to electrical stimulation (ES) and its mechanisms focusing on potential clinic applications has been quietly intensified recently. However, the unconventional nature of this methodology has fertilized a great variety of techniques that make the interpretation and comparison of experimental outcomes complicated. This work reviews more than a hundred publications identified mostly from Medline, categorizes the techniques, and comments on their merits and weaknesses. Electrode-based ES, conductive substrate-mediated ES, and noninvasive stimulation are the three principal categories used in biomedical research and clinic. ES has been found to enhance cell proliferation, growth, migration, and stem cell differentiation, showing an important potential in manipulating cellular activities in both normal and pathological conditions. However, inappropriate parameters or setup can have negative effects. The complexity of the delivered electric signals depends on how they are generated and in what form. It is also difficult to equate one set of parameters with another. Mechanistic studies are rare and badly needed. Even so, ES in combination with advanced materials and nanotechnology is developing a strong footing in biomedical research and regenerative medicine.
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Deng Y, Guo F, Han X, Huang X. Repetitive transcranial magnetic stimulation increases neurological function and endogenous neural stem cell migration via the SDF-1α/CXCR4 axis after cerebral infarction in rats. Exp Ther Med 2021; 22:1037. [PMID: 34373723 PMCID: PMC8343462 DOI: 10.3892/etm.2021.10469] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 06/09/2021] [Indexed: 12/21/2022] Open
Abstract
Neural stem cell (NSC) migration is closely associated with brain development and is reportedly involved during recovery from ischaemic stroke. Chemokine signalling mediated by stromal cell-derived factor 1α (SDF-1α) and its receptor CXC chemokine receptor 4 (CXCR4) has been previously documented to guide the migration of NSCs. Although repetitive transcranial magnetic stimulation (rTMS) can increase neurological function in a rat stroke model, its effects on the migration of NSCs and associated underlying mechanism remain unclear. Therefore, the present study investigated the effects of rTMS on ischaemic stroke following middle cerebral artery occlusion (MCAO). All rats underwent rTMS treatment 24 h after MCAO. Neurological function, using modified Neurological Severity Scores and grip strength test and NSC migration, which were measured using immunofluorescence staining, were analysed at 7 and 14 days after MCAO, before the protein expression levels of the SDF-1α/CXCR4 axis was evaluated using western blot analysis. AMD3100, a CXCR4 inhibitor, was used to assess the effects of SDF-1α/CXCR4 signalling. In addition, neuronal survival was investigated using Nissl staining at 14 days after MCAO. It was revealed that rTMS increased the neurological recovery of rats with MCAO, facilitated the migration of NSC, augmented the expression levels of the SDF-1α/CXCR4 axis and decreased neuronal loss. Furthermore, the rTMS-induced positive responses were significantly abolished by AMD3100. Overall, these results indicated that rTMS conferred therapeutic neuroprotective properties, which can restore neurological function after ischaemic stroke, in a manner that may be associated with the activation of the SDF-1α/CXCR4 axis.
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Affiliation(s)
- Yuguo Deng
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Feng Guo
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiaohua Han
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Xiaolin Huang
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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Plair A, Bennington J, Williams JK, Parker-Autry C, Matthews CA, Badlani G. Regenerative medicine for anal incontinence: a review of regenerative therapies beyond cells. Int Urogynecol J 2020; 32:2337-2347. [PMID: 33247762 DOI: 10.1007/s00192-020-04620-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/16/2020] [Indexed: 12/14/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Current treatment modalities for anal sphincter injuries are ineffective for many patients, prompting research into restorative and regenerative therapies. Although cellular therapy with stem cells and progenitor cells show promise in animal models with short-term improvement, there are additional regenerative approaches that can augment or replace cellular therapies for anal sphincter injuries. The purpose of this article is to review the current knowledge of cellular therapies for anal sphincter injuries and discusses the use of other regenerative therapies including cytokine therapy with CXCL12. METHODS A literature search was performed to search for articles on cellular therapy and cytokine therapy for anal sphincter injuries and anal incontinence. RESULTS The article search identified 337 articles from which 33 articles were included. An additional 12 referenced articles were included as well as 23 articles providing background information. Cellular therapy has shown positive results for treating anal sphincter injuries and anal incontinence in vitro and in one clinical trial. However, cellular therapy has disadvantages such as the source and processing of stem cells and progenitor cells. CXCL12 does not have such issues while showing promising in vitro results for treating anal sphincter injuries. Additionally, electrical stimulation and extracorporeal shock wave therapy are potential regenerative medicine adjuncts for anal sphincter injuries. A vision for future research and clinical applications of regenerative medicine for anal sphincter deficiencies is provided. CONCLUSION There are viable regenerative medicine therapies for anal sphincter injuries beyond cellular therapy. CXCL12 shows promise as a focus of therapeutic research in this field.
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Affiliation(s)
- Andre Plair
- Department of Urology, Wake Forest Baptist Health, Winston Salem, NC, USA.
| | - Julie Bennington
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, USA
| | | | | | | | - Gopal Badlani
- Department of Urology, Wake Forest Baptist Health, Winston Salem, NC, USA
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Abstract
BACKGROUND Healing of an anal sphincter defect at a time distant from injury is a challenge. OBJECTIVE We aimed to investigate whether re-establishing stem cell homing at the site of an anal sphincter defect when cytokine expression has declined using a plasmid engineered to express stromal derived factor 1 with or without mesenchymal stem cells can improve anatomic and functional outcome. DESIGN This was a randomized animal study. SETTINGS Thirty-two female age- and weight-matched Sprague Dawley rats underwent 50% excision of the anal sphincter complex. Three weeks after injury, 4 interventions were randomly allocated (n = 8), including no intervention, 100-μg plasmid, plasmid and 800,000 cells, and plasmid with a gelatin scaffold mixed with cells. MAIN OUTCOME MEASURES The differences in anal sphincter resting pressures just before and 4 weeks after intervention were used for functional analysis. Histology was analyzed using Masson staining. One-way ANOVA followed by the Tukey post hoc test was used for pressure and histological analysis. RESULTS All 3 of the intervention groups had a significantly greater change in resting pressure (plasmid p = 0.009; plasmid + cells p = 0.047; plasmid + cells in scaffold p = 0.009) compared with the control group. The plasmid-with-cells group showed increased organization of muscle architecture and increased muscle percentage, whereas the control group showed disorganized architecture at the site of the defect. Histological quantification revealed significantly more muscle at the site of defect in the plasmid-plus-cells group compared with the control group, which had the least muscle. Quantification of connective tissue revealed significantly less fibrosis at the site of defect in the plasmid and plasmid-plus-cells groups compared with the control group. LIMITATIONS Midterm evaluation and muscle morphology were not defined. CONCLUSIONS At this midterm follow-up, local delivery of a stromal derived factor 1 plasmid with or without local mesenchymal stem cells enhanced anal sphincter muscle regeneration long after an anal sphincter injury, thereby improving functional outcome. See Video Abstract at http://links.lww.com/DCR/A324.
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Electrical Stimulation Followed by Mesenchymal Stem Cells Improves Anal Sphincter Anatomy and Function in a Rat Model at a Time Remote From Injury. Dis Colon Rectum 2016; 59:434-42. [PMID: 27050606 DOI: 10.1097/dcr.0000000000000548] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND We have explored cell-based therapy to aid anal sphincter repair, but a conditioning injury is required to direct stem cells to the site of injury because symptoms usually manifest at a time remote from injury. OBJECTIVE We aimed to investigate the effect of local electrical stimulation followed by mesenchymal stem cell delivery on anal sphincter regeneration at a time remote from injury. DESIGN AND MAIN OUTCOME MEASURES With the use of a rat model, electrical stimulation parameters and cell delivery route were selected based on in vivo cytokine expression and luciferase-labeled cell imaging of the anal sphincter complex. Three weeks after a partial anal sphincter excision, rats were randomly allocated to 4 groups based on different local interventions: no treatment, daily electrical stimulation for 3 days, daily stimulation for 3 days followed by stem cell injection on the third day, and daily electrical stimulation followed by stem cell injection on the first and third days. Histology-assessed anatomy and anal manometry evaluated physiology 4 weeks after intervention. RESULTS The electrical stimulation parameters that significantly upregulated gene expression of homing cytokines also achieved mesenchymal stem cell retention when injected directly in the anal sphincter complex in comparison with intravascular and intraperitoneal injections. Four weeks after intervention, there was significantly more new muscle in the area of injury and significantly improved anal resting pressure in the group that received daily electrical stimulation for 3 days followed by a single injection of 1 million stem cells on the third day at the site of injury. LIMITATION This was a pilot study and therefore was not powered for functional outcome. CONCLUSIONS In this rat injury model with optimized parameters, electrical stimulation with a single local mesenchymal stem cell injection administered 3 weeks after injury significantly improved both new muscle formation in the area of injury and anal sphincter pressures.
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Cheng JW, Sadeghi Z, Levine AD, Penn MS, von Recum HA, Caplan AI, Hijaz A. The role of CXCL12 and CCL7 chemokines in immune regulation, embryonic development, and tissue regeneration. Cytokine 2014; 69:277-83. [PMID: 25034237 DOI: 10.1016/j.cyto.2014.06.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2013] [Revised: 05/23/2014] [Accepted: 06/04/2014] [Indexed: 12/20/2022]
Abstract
Chemotactic factors direct the migration of immune cells, multipotent stem cells, and progenitor cells under physiologic and pathologic conditions. Chemokine ligand 12 and chemokine ligand 7 have been identified and investigated in multiple studies for their role in cellular trafficking in the setting of tissue regeneration. Recent early phase clinical trials have suggested that these molecules may lead to clinical benefit in patients with chronic disease. Importantly, these two proteins may play additional significant roles in directing the migration of multipotent cells, such as mesenchymal stem cells and hematopoietic progenitor cells. This article reviews the functions of these two chemokines, focusing on recruitment to sites of injury, immune function modulation, and contributions to embryonic development. Additional research would provide valuable insight into the potential clinical application of these two proteins in stem cell therapy.
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Affiliation(s)
- Julie W Cheng
- Urology Institute, University Hospitals Case Medical Center, Department of Urology, Case Western Reserve University School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106, United States
| | - Zhina Sadeghi
- Urology Institute, University Hospitals Case Medical Center, Department of Urology, Case Western Reserve University School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106, United States
| | - Alan D Levine
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States; Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States; Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States; Department of Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH 44106, United States
| | - Marc S Penn
- Skirball Laboratory for Cardiovascular Cellular Therapeutics, Summa Cardiovascular Institute, Summa Health System, 525 East Market Street, Akron, OH 44304, United States
| | - Horst A von Recum
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, United States
| | - Arnold I Caplan
- Skeletal Research Center, Department of Biology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, United States
| | - Adonis Hijaz
- Urology Institute, University Hospitals Case Medical Center, Department of Urology, Case Western Reserve University School of Medicine, 11100 Euclid Avenue, Cleveland, OH 44106, United States.
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Hu B, Zhang Y, Zhou J, Li J, Deng F, Wang Z, Song J. Low-intensity pulsed ultrasound stimulation facilitates osteogenic differentiation of human periodontal ligament cells. PLoS One 2014; 9:e95168. [PMID: 24743551 PMCID: PMC3990585 DOI: 10.1371/journal.pone.0095168] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2013] [Accepted: 03/24/2014] [Indexed: 12/24/2022] Open
Abstract
Human periodontal ligament cells (hPDLCs) possess stem cell properties, which play a key role in periodontal regeneration. Physical stimulation at appropriate intensities such as low-intensity pulsed ultrasound (LIPUS) enhances cell proliferation and osteogenic differentiation of mesechymal stem cells. However, the impacts of LIPUS on osteogenic differentiation of hPDLCs in vitro and its molecular mechanism are unknown. This study was undertaken to investigate the effects of LIPUS on osteogenic differentiation of hPDLCs. HPDLCs were isolated from premolars of adolescents for orthodontic reasons, and exposed to LIPUS at different intensities to determine an optimal LIPUS treatment dosage. Dynamic changes of alkaline phosphatase (ALP) activities in the cultured cells and supernatants, and osteocalcin production in the supernatants after treatment were analyzed. Runx2 and integrin β1 mRNA levels were assessed by reverse transcription polymerase chain reaction analysis after LIPUS stimulation. Blocking antibody against integrinβ1 was used to assess the effects of integrinβ1 inhibitor on LIPUS-induced ALP activity, osteocalcin production as well as calcium deposition. Our data showed that LIPUS at the intensity of 90 mW/cm2 with 20 min/day was more effective. The ALP activities in lysates and supernatants of LIPUS-treated cells started to increase at days 3 and 7, respectively, and peaked at day 11. LIPUS treatment significantly augmented the production of osteocalcin after day 5. LIPUS caused a significant increase in the mRNA expression of Runx2 and integrin β1, while a significant decline when the integrinβ1 inhibitor was used. Moreover, ALP activity, osteocalcin production as well as calcium nodules of cells treated with both daily LIPUS stimulation and integrinβ1 antibody were less than those in the LIPUS-treated group. In conclusion, LIPUS promotes osteogenic differentiation of hPDLCs, which is associated with upregulation of Runx2 and integrin β1, which may thus provide therapeutic benefits in periodontal tissue regeneration.
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Affiliation(s)
- Bo Hu
- Chongqing key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Yuanyuan Zhang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Jie Zhou
- Chongqing key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Jing Li
- Chongqing key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Feng Deng
- Chongqing key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
| | - Zhibiao Wang
- College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
| | - Jinlin Song
- Chongqing key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- College of Stomatology, Chongqing Medical University, Chongqing, China
- * E-mail:
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