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Tian T, Ko CN, Luo W, Li D, Yang C. The anti-aging mechanism of ginsenosides with medicine and food homology. Food Funct 2023; 14:9123-9136. [PMID: 37766674 DOI: 10.1039/d3fo02580b] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
With the acceleration of global aging and the rise in living standards, the achievement of healthy aging is becoming an imperative issue globally. Ginseng, a medicinal plant that has a long history of dietary intake and remarkable medicinal value, has become a research hotspot in the field of food and medicine. Ginsenosides, especially protopanaxadiol-type saponins and protopanaxatriol-type saponins, are among the most important active ingredients in ginseng. Ginsenosides have been found to exhibit powerful and diverse pharmacological activities, such as antiaging, antitumor, antifatigue and immunity enhancement activities. Their effects in antiaging mainly include (1) promotion of metabolism and stem cell proliferation, (2) protection of skin and nerves, (3) modulation of intestinal flora, (4) maintenance of mitochondrial function, and (5) enhancement of telomerase activity. The underlying mechanisms are primarily associated with the intervention of the signaling pathways in apoptosis, inflammation and oxidative stress. In this review, the mechanism of action of ginsenosides in antiaging as well as the potential values of developing ginsenoside-based functional foods and antiaging drugs are discussed.
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Affiliation(s)
- Tiantian Tian
- Center for Biological Science and Technology, Beijing Normal University, Zhuhai, Guangdong Province, 519087, China
| | - Chung-Nga Ko
- C-MER Dennis Lam and Partners Eye Center, Hong Kong International Eye Care Group, Hong Kong, China
| | - Wenya Luo
- Haikou Orthopedics and Diabetes Hospital, Haikou, Hainan, 570206, China
| | - Dan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
| | - Chao Yang
- National Engineering Research Center for Marine Aquaculture, Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China.
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Zhang J, Huang X, Xie J, Fang J, Fu H. Exosomal miR-29a Derived from Bone Marrow Mesenchymal Stem Cells Promotes Mouse Bone Development and Formation. J BIOMATER TISS ENG 2023. [DOI: 10.1166/jbt.2023.3241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Bone undergoes constant remodeling during development, and the maintenance of its function requires a dynamic balance between bone formation and resorption by osteoclasts. With unique bone resorption capabilities, as large multinucleated cells, osteocytes participate in bone remodeling
and they are produced by the mononuclear/macrophage cells under activation of Wnt and Runx2. The mechanism underlying osteogenesis remains unclear. We investigated the impact of exosomal miR-29a derived from BMSCs on bone development and formation. In this study, BMSCs were transfected and
then injected into mice followed by analysis of femur and skull development and regeneration by HE staining and CT scanning, and the expression of DKK1, Runx-2, and osteogenic biomarkers (Osterix, Satb2, ALP, and BSP) by western blot and RT-qPCR. Compared with mice in miR-29a inhibitor group,
the femur and skull of mice in miRNA NC group were more complete. miR-29a derived from BMSCs induced a decrease of DKK1 expression and increase of the expression of β-catenin and osteogenic transcription factors. In conclusion, this study demonstrates that BMSC-derived exosomes
miR-29a facilitates osteogenesis in mice through inhibition of DKK1 expression.
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Affiliation(s)
- Jianguo Zhang
- Special Needs Medical Service Center, Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, 510315, China
| | - Xingru Huang
- The Third Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong, 510375, China
| | - Jie Xie
- Department of Orthopedics, Guangzhou Liwan District Orthopaedic Hospital, Guangzhou, Guangdong, 510140, China
| | - Jian Fang
- Guangzhou University of Traditional Chinese Medicine Third School of Clinical Medicine, Guangzhou, Guangdong, 510375, China
| | - Huaili Fu
- Special Needs Medical Service Center, Hospital of Integrated Traditional Chinese and Western Medicine, Southern Medical University, Guangzhou, Guangdong, 510315, China
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Wang X, Fu L, Sun R, Zhang C, Zhang Y. Bone Marrow Mesenchymal Stem Cell-Exosomes (BMSC-ExO) Promote Osteogenic Differentiation In Vitro and Osteogenesis In Vivo by Regulating miR-318/Runt-Related Transcription Factor 2 (RUNX2). J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Primary osteoporosis (PMOP) is characterized by bone mass reduction and bone microstructure destruction, increased bone fragility and prone to fracture, which is partially caused by ovarian dysfunction and decreased estrogen content. Bone marrow mesenchymal stem cell exosomes (BMSC-ExO)
can improve PMOP. In this study, BMSC-EXO was used to study the role and function of miR-318 and Runx2 in PMOP. Human osteogenitor cells were isolated from PMOP patients with primary osteoporosis. After BMSC-exo treatment, miR-318 and Runx 2 level was tested by RT-qPCR and Western blot. In
addition, mice in OVX group were treated with BMSC-ExO (bilateral ovaries were removed) to observe the effect of BMSC-ExO on bone tissue. Our results showed that BMSC-exo treatment significantly decreased miR-318 level, upregulated RUNX2 expression and increased ALP activity. In addition,
BMSC-exo administration ameliorated the declined bone mass and bone formation in osteoporotic femurs in OVX mice. In conclusion, BMSC-Exo enhances Runx2 levels by down-regulation of miR-318, thereby promoting osteogenic differentiation of osteogenitor cells, providing new potential therapeutic
targets for treating PMOP.
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Affiliation(s)
- Xiufeng Wang
- Department of Pediatric Part 3, Xingtai People’s Hospital, Xingtai, Hebei, 054000, China
| | - Lin Fu
- Department of Pathology, Xingtai People’s Hospital, Xingtai, Hebei, 054000, China
| | - Ruixue Sun
- Department of Pediatric Part 3, Xingtai People’s Hospital, Xingtai, Hebei, 054000, China
| | - Cuilin Zhang
- Department of Pediatric Part 3, Xingtai People’s Hospital, Xingtai, Hebei, 054000, China
| | - Yanling Zhang
- Department of Pediatric Part 3, Xingtai People’s Hospital, Xingtai, Hebei, 054000, China
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Viola A, Appiah J, Donnally CJ, Kim YH, Shenoy K. Bone Graft Options in Spinal Fusion: A Review of Current Options and the Use of Mesenchymal Cellular Bone Matrices. World Neurosurg 2021; 158:182-188. [PMID: 34875392 DOI: 10.1016/j.wneu.2021.11.130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Spinal fusion is the mainstay treatment for various spinal conditions ranging from lumbar and cervical stenosis to degenerative spondylolisthesis as well as extensive deformity corrections. A new emerging category of allograft is cellular bone matrices (CBMs), which take allogeneic mesenchymal stem cells and incorporate them into an osteoconductive and osteoinductive matrix. This study reviewed the current spinal fusion options and new emerging treatment options. METHODS Articles were searched using PubMed. The search included English publications since January 1, 2014, using the search terms "cellular bone matrix," "mesenchymal stem cells spinal fusion," "spinal arthrodesis AND mesenchymal stem cells," and "spine fusion AND cellular bone matrix." RESULTS Spinal fusion is accomplished through the use of allografts, autografts, and bone graft substitutes in combination or alone. An emerging category of allograft is CBMs, in which an osteoconductive and osteoinductive matrix is filled with mesenchymal stem cells. Studies demonstrate that CBMs have achieved equivalent or better fusion rates compared with traditional options for anterior cervical discectomy and fusions and posterolateral lumbar fusions; however, the studies have been retrospective and lacking control groups and therefore not ideal. CONCLUSIONS Many treatment options have been successfully used in spinal fusion. Newer allografts such as CBMs have shown promising results in both animal and clinical studies. Further research is needed to determine the therapeutic dose of mesenchymal stem cells delivered within CBMs.
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Affiliation(s)
- Anthony Viola
- Department of Orthopedic Surgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania, USA.
| | - Jude Appiah
- Department of Orthopaedic Surgery, NYU Langone Health, New York, New York, USA
| | | | - Yong H Kim
- Department of Orthopaedic Surgery, NYU Langone Health, New York, New York, USA
| | - Kartik Shenoy
- Mike O'Callaghan Military Medical Center, Nellis Air Force Base, Nevada, USA
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Li X, Chen R, Li Y, Wang P, Cui Y, Yang L, Zhu X, Zhang R. miR-27a-5p-Abundant Small Extracellular Vesicles Derived From Epimedium-Preconditioned Bone Mesenchymal Stem Cells Stimulate Osteogenesis by Targeting Atg4B-Mediated Autophagy. Front Cell Dev Biol 2021; 9:642646. [PMID: 34621733 PMCID: PMC8491742 DOI: 10.3389/fcell.2021.642646] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 08/03/2021] [Indexed: 01/08/2023] Open
Abstract
Osteoporosis (OP) is a disease affecting the elderly and is characterized by incremental fractures and bone fragility. Small extracellular vesicles (sEVs) derived from mesenchymal stem cells have been demonstrated to possess potent regeneration potential. In this study, we evaluated the osteogenesis effects of sEVs derived from Epimedium-preconditioned bone mesenchymal stem cells (EPI-sEV) from osteoblasts and ovariectomized (OVX) rats. The underlying mechanism of EPI-sEV-induced osteogenesis was explored by RNA-sequencing and verified by transfection with the corresponding mimic and inhibitor. EPI-sEV stimulated osteogenic differentiation of osteoblasts and moderated both bone mass and microstructure in OVX rats. Sequencing identified a unique enrichment of a set of microRNAs (miRNAs) in EPI-sEV. Overexpression or inhibition in vitro demonstrated that the osteogenesis-inducing potential was primarily attributed to miR-27a-5p, one of the most abundant miRNAs in the EPI-sEV fraction. Dual-luciferase reporter assays showed that miR-27a-5p promoted osteogenesis through direct suppression of Atg4B by targeting its 3' untranslated region. Additional experiments showed that miR-27a-5p suppressed autophagy that was activated in OVX rats. Moreover, osteogenic differentiation was ablated by the intervention with rapamycin in osteoblasts. These data report the regenerative potential of EPI-sEV to induce osteogenic differentiation of osteoblast cells leading to bone formation. This process is achieved by delivering sEV-miR-27a-5p to target Atg4B for further autophagy stimulation.
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Affiliation(s)
- Xiaoyun Li
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Rumeng Chen
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Yunchuan Li
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Panpan Wang
- The First Affiliated Hospital of Jinan University, Guangzhou, China
- Cancer Research Institution, Jinan University, Guangzhou, China
| | - Yan Cui
- College of Traditional Chinese Medicine Jinan University, Guangzhou, China
| | - Li Yang
- College of Pharmacy, Jinan University, Guangzhou, China
| | - Xiaofeng Zhu
- College of Traditional Chinese Medicine Jinan University, Guangzhou, China
- The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Ronghua Zhang
- College of Pharmacy, Jinan University, Guangzhou, China
- Cancer Research Institution, Jinan University, Guangzhou, China
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Ren W, Gan D, Tan G, Xue H, Li N, Xu Z. CHANGES OF WNT/B-CATENIN SIGNALING AND DIFFERENTIATION POTENTIAL OF BONE MARROW MESENCHYMAL STEM CELLS IN PROCESS OF BONE LOSS IN OVARIECTOMIZED RATS. ACTA ENDOCRINOLOGICA-BUCHAREST 2020; 16:156-164. [PMID: 33029231 DOI: 10.4183/aeb.2020.156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background In vitro studies of the changes about osteoblastogenesis and adipogenesis potential of BMSCs were not clear. As it is the critical pathway for osteogenic differentiation and bone formation, whether or not Wnt/β-catenin signalling is involved in the changes of osteogenic and adipogenic potential of BMSCs and participates in bone content decrease of ovariectomized (OVX)osteoporosis rats has been rarely reported. Material/Methods BMSCs from femurs of ovariectomzed rats were isolated and cultured in vitro. The proliferation potential of BMSCs was analysed by CCK-8 assays . Osteoblastic and adipogenic differentiation potential of the BMSCs was assessed by ALP activity assay, Alizarin red S staining, Oil red O staining and RT-PCR analysis. Results The results demonstrated that BMSCs from bilateral ovariectomization rats were endowed with lower proliferation and osteoblastic differentiation potential but higher adipogenic potential than the control group in vitro. In addition, β-catenin was found to have been decreased in OVX BMSCs, indicating that Wnt/β-catenin signalling pathways were suppressed in OVX BMSCs . Conclusions Results suggested that changes in the Wnt canonical signalling pathway may be related to imbalances of osteogenic and adipogenic potential of BMSCs, and this may be an important factor related to bone content decrease in ovariectomized osteoporosis rats.
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Mosqueira L, Barrioni BR, Martins T, Ocarino NDM, Serakides R, Pereira MDM. In vitro effects of the co-release of icariin and strontium from bioactive glass submicron spheres on the reduced osteogenic potential of rat osteoporotic bone marrow mesenchymal stem cells. ACTA ACUST UNITED AC 2020; 15:055023. [PMID: 32375130 DOI: 10.1088/1748-605x/ab9095] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Osteoporosis is a metabolic disease that affects bone tissue and is highly associated with bone fractures. Typical osteoporosis fracture treatments, such as bisphosphonates and hormone replacement, present important challenges because of their low bioavailability on the site of action. Options to overcome this issue are systems for the local release of therapeutic agents such as bioactive glasses containing therapeutic molecules and ions. These agents are released during the dissolution process, combining the drugs and ion therapeutic effects for osteoporosis treatment. Among the therapeutic agents that can be applied for bone repair are strontium (Sr) ion and phytopharmaceutical icariin, which have shown potential to promote healthy bone marrow stem cells osteogenic differentiation, increase bone formation and prevent bone loss. Submicron Sr-containing bioactive glass mesoporous spheres with sustained ion release capacity were obtained. Icariin was successfully incorporated into the particles, and the glass composition influenced the icariin incorporation efficiency and release rates. In this work, for the first time, Sr and icariin were incorporated into bioactive glass submicron mesoporous spheres and the in vitro effects of the therapeutic agents release were evaluated on the reduced osteogenic potential of rat osteoporotic bone marrow mesenchymal stem cells, and results showed an improvement on the reduced differentiation potential.
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Affiliation(s)
- Layla Mosqueira
- Departamento de Engenharia Metalúrgica e de Materiais, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Al-Hakami A, Alqhatani SQ, Shaik S, Jalfan SM, Dhammam MSA, Asiri W, Alkahtani AM, Devaraj A, Chandramoorthy HC. Cytokine physiognomies of MSCs from varied sources confirm the regenerative commitment post-coculture with activated neutrophils. J Cell Physiol 2020; 235:8691-8701. [PMID: 32385929 DOI: 10.1002/jcp.29713] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/09/2020] [Accepted: 03/31/2020] [Indexed: 12/18/2022]
Abstract
The interaction of mesenchymal stromal cells (MSCs) with paracrine signals and immunological cells, and their responses and regenerative commitment thereafter, is understudied. In the current investigation, we compared MSCs from the umbilical cord blood (UCB), dental pulp (DP), and liposuction material (LS) on their ability to respond to activated neutrophils. Cytokine profiling (interleukin-1α [IL-1α], IL-2, IL-4, IL-6, IL-8, tumor necrosis factor-α [TNF-α], interferon-γ [IFN-γ], transforming growth factor-β [TGF-β]), cellular proliferation and osteogenic differentiation patterns were assessed. The results showed largely comparable cytokine profiles with higher TNF-α and IFN-γ levels in LSMSCs owing to their mature cellular phenotype. The viability and proliferation between LS/DP/UCB MSCs were comparable in the coculture group, while direct activation of MSCs with lipopolysaccharide (LPS) showed comparable proliferation with significant cell death in UCB MSCs and slightly higher cell death in the other two types of MSC. Furthermore, when MSCs post-neutrophil exposure were induced for osteogenic differentiation, though all the MSCs devoid of the sources differentiated, we observed rapid and significant turnover of DPMSCs positive of osteogenic markers rather than LS and UCB MSCs. We further observed a significant turnover of IL-1α and TGF-β at mRNA and cytokine levels, indicating the commitment of MSCs to differentiate through interacting with immunological cells or bacterial products like neutrophils or LPS, respectively. Taken together, these results suggest that MSCs have more or less similar cytokine responses devoid of their anatomical niche. They readily switch over from the cytokine responsive cell phenotype at the immunological microenvironment to differentiate and regenerate tissue in response to cellular signals.
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Affiliation(s)
- Ahmed Al-Hakami
- Center for Stem Cell Research, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Department of Microbiology and Clinical Parasitology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Saad Qaddah Alqhatani
- Department of Surgery, Plastic Surgery Division, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Sharaz Shaik
- Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Saaed Mohammed Jalfan
- Center for Stem Cell Research, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | | | - Wejdan Asiri
- Center for Stem Cell Research, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Abdullah Misfer Alkahtani
- Department of Microbiology and Clinical Parasitology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Anantharam Devaraj
- Center for Stem Cell Research, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Department of Microbiology and Clinical Parasitology, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Harish C Chandramoorthy
- Center for Stem Cell Research, College of Medicine, King Khalid University, Abha, Saudi Arabia.,Department of Microbiology and Clinical Parasitology, College of Medicine, King Khalid University, Abha, Saudi Arabia
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Stem cell-based bone and dental regeneration: a view of microenvironmental modulation. Int J Oral Sci 2019; 11:23. [PMID: 31423011 PMCID: PMC6802669 DOI: 10.1038/s41368-019-0060-3] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 05/28/2019] [Accepted: 06/12/2019] [Indexed: 02/06/2023] Open
Abstract
In modern medicine, bone and dental loss and defects are common and widespread morbidities, for which regenerative therapy has shown great promise. Mesenchymal stem cells, obtained from various sources and playing an essential role in organ development and postnatal repair, have exhibited enormous potential for regenerating bone and dental tissue. Currently, mesenchymal stem cells (MSCs)-based bone and dental regeneration mainly includes two strategies: the rescue or mobilization of endogenous MSCs and the application of exogenous MSCs in cytotherapy or tissue engineering. Nevertheless, the efficacy of MSC-based regeneration is not always fulfilled, especially in diseased microenvironments. Specifically, the diseased microenvironment not only impairs the regenerative potential of resident MSCs but also controls the therapeutic efficacy of exogenous MSCs, both as donors and recipients. Accordingly, approaches targeting a diseased microenvironment have been established, including improving the diseased niche to restore endogenous MSCs, enhancing MSC resistance to a diseased microenvironment and renormalizing the microenvironment to guarantee MSC-mediated therapies. Moreover, the application of extracellular vesicles (EVs) as cell-free therapy has emerged as a promising therapeutic strategy. In this review, we summarize current knowledge regarding the tactics of MSC-based bone and dental regeneration and the decisive role of the microenvironment, emphasizing the therapeutic potential of microenvironment-targeting strategies in bone and dental regenerative medicine.
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Zheng Z, Liu J. GDNF-ADSCs-APG embedding enhances sciatic nerve regeneration after electrical injury in a rat model. J Cell Biochem 2019; 120:14971-14985. [PMID: 31062403 DOI: 10.1002/jcb.28759] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 03/20/2019] [Accepted: 03/22/2019] [Indexed: 12/31/2022]
Abstract
The pluripotency of adipose-derived stem cells (ADSCs) makes them appropriate for tissue repair and wound healing. Owing to the repair properties of autologous platelet-rich gel (APG), which is based on easily accessible blood platelets, its clinical use has been increasingly recognized by physicians. The aim of this study was to investigate the effect of combined treatment with ADSCs and APG on sciatic nerve regeneration after electrical injury. To facilitate the differentiation of ADSCs, glial cell line-derived neurotrophic factor (GDNF) was overexpressed in ADSCs by lentivirus transfection. GDNF-ADSCs were mingled with APG gradient concentrations, and in vitro, cell proliferation and differentiation were examined with 5-ethynyl-2'-deoxyuridine staining and immunofluorescence. A rat model was established by exposing the sciatic nerve to an electrical current of 220 V for 3 seconds. Rat hind-limb motor function and sciatic nerve regeneration were subsequently evaluated. Rat ADSCs were characterized by high expression of CD90 and CD105, with scant expression of CD34 and CD45. We found that GDNF protein expression in ADSCs was elevated after Lenti-GDNF transfection. In GDNF-ADSCs-APG cultures, GDNF was increasingly produced while tissue growth factor-β was reduced as incubation time was increased. ADSC proliferation was augmented and neuronal nuclei (NeuN) and glial fibrillary acidic protein (GFAP) expression were upregulated in GDNF-ADSCs-APG. In addition, limb motor function and nerve axon growth were improved after GDNF-ADSCs-APG treatment. In conclusion, our study demonstrates the combined effect of ADSCs and APG in peripheral nerve regeneration and may lead to treatments that benefit patients with electrical injuries.
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Affiliation(s)
- Zhao Zheng
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jiaqi Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
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Yu X, Quan J, Long W, Chen H, Wang R, Guo J, Lin X, Mai S. LL-37 inhibits LPS-induced inflammation and stimulates the osteogenic differentiation of BMSCs via P2X7 receptor and MAPK signaling pathway. Exp Cell Res 2018; 372:178-187. [PMID: 30287143 DOI: 10.1016/j.yexcr.2018.09.024] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 12/13/2022]
Abstract
Oral diseases, such as periapical periodontitis and periodontitis, are characterized by inflammation-induced bone loss. LL-37, a human antimicrobial peptide (AMP), has multiple biological functions and the potential to promote osteogenesis. Therefore, this study aimed to investigate the regulatory effects of LL-37 within normal and inflammatory microenvironments. The roles of P2X7 receptor (P2X7R) and mitogen-activated protein kinase (MAPK) signaling pathway were also demonstrated. The results showed that LL-37 promoted bone marrow stromal cell (BMSC) proliferation, migration and osteogenic differentiation. LL-37 inhibited the expression of the inflammatory cytokines interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) and receptor activator of nuclear factor kappa-B ligand (RANKL) at both protein and gene levels, and attenuated the lipopolysaccharide (LPS)-induced inhibition of osteogenesis. Immunofluorescence (IF) confirmed P2X7R expression in BMSCs. BBG, a P2X7R antagonist, significantly attenuated LL-37-promoted osteogenesis. The phosphorylation of extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun NH2-terminal kinase (JNK) increased after LL-37 stimulation, which did not affect p38 phosphorylation. The effects of LL-37 on osteogenesis-related gene expression were markedly attenuated by selective inhibitors of ERK1/2 and JNK. Furthermore, a mouse model of LPS-stimulated calvarial osteolysis was established, and results showed that LL-37 markedly inhibited osteoclastic bone resorption. In conclusion, we speculate that LL-37 inhibits inflammation and promotes BMSC osteogenesis via P2X7R and MAPK signaling pathway.
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Affiliation(s)
- Xiaoran Yu
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Jingjing Quan
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Weilin Long
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Huimin Chen
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Ruoxun Wang
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Jiaxin Guo
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Xiaoxuan Lin
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Sui Mai
- Department of Conservation Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, PR China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China.
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Wu ZH, Huang KH, Liu K, Wang GT, Sun Q. DGCR5 induces osteogenic differentiation by up-regulating Runx2 through miR-30d-5p. Biochem Biophys Res Commun 2018; 505:426-431. [PMID: 30266402 DOI: 10.1016/j.bbrc.2018.09.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Postmenopausal osteoporosis (PMOP) is a metabolic bone disease caused by unbalance between osteoblast bone formation and osteoclast bone resorption. In this study, the moderating effect of DGCR5 on osteogenic differentiation and its role in PMOP was assessed. METHODS The expression levels of DGCR5, miR-30d-5p, and Runt-related transcription factor 2 (Runx2) mRNA and protein were determined by qRT-PCR and western blot, separately. The bone marrow human mesenchymal stem cells (hMSCs) were isolated from bone marrow of patients with PMOP or the healthy control. ALP activity and bone mineral density (BMD) were detected to reflect the osteogenic differentiation status. RIP and RNA pull-down assay were performed to explore the combination and interaction between DGCR5 and miR-30d-5p. RESULTS Compared with the healthy control group (n = 20), DGCR5 was down-regulated in hMSCs from patients with PMOP (n = 20). Overexpression of DGCR5 induced osteogenic differentiation of hMSCs. DGCR5 up-regulated the expression of Runx2 through miR-30d-5p. DGCR5 up-regulated the expression of Runx2 through miR-30d-5p to induce osteogenic differentiation of hMSCs. CONCLUSION DGCR5 negatively regulates miR-30d-5p, and it up-regulates Runx2 through miR-30d-5p, thereby inducing osteogenic differentiation of hMSCs, which may help to delay PMOP development.
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Affiliation(s)
- Zhi-Hao Wu
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Kai-Hua Huang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Kang Liu
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Guan-Tong Wang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
| | - Qiang Sun
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China.
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Adipose mesenchymal stem cells from osteoporotic donors preserve functionality and modulate systemic inflammatory microenvironment in osteoporotic cytotherapy. Sci Rep 2018; 8:5215. [PMID: 29581449 PMCID: PMC5980002 DOI: 10.1038/s41598-018-23098-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 03/05/2018] [Indexed: 12/24/2022] Open
Abstract
Maintenance of bone homeostasis against diseased microenvironments remains as a major challenge. Recently, mesenchymal stem cells (MSCs) have been unravelled as potent microenvironmental modulators, the systemic infusion of which in cytotherapy can prevent or rescue extensive bone loss via anti-inflammation. However, MSCs also accept microenvironmental regulations; particularly, MSCs from bone marrow (BMMSCs) are prone to pathological microenvironmental factors of bone. In this study, we discovered that BMMSCs from osteoporotic donors of ovariectomized (OVX) mice lost their anti-inflammatory capability and failed to prevent bone loss when infused back into OVX recipients. Nevertheless, MSCs from adipose tissues (ADMSCs) preserved their anti-inflammatory capacity, despite diseased microenvironments of OVX donors, and continued to show protective effects on bone in OVX recipients. In the cellular level, the anti-inflammatory superiority of osteoporotic donor-derived ADMSCs over BMMSCs existed in their distinctive capability to induce T-cell apoptosis, which was molecularly attributed to retained expression levels of critical immunomodulatory genes. Furthermore, these functional discrepancies of BMMSCs and ADMSCs were due to differential stemness, energy metabolism and anti-oxidative defence system, underlying general disparity in their cellular states. Collectively, our findings optimize osteoporotic cytotherapy by using ADMSCs in resistance to and in modulation of diseased microenvironments.
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Duarte RM, Varanda P, Reis RL, Duarte ARC, Correia-Pinto J. Biomaterials and Bioactive Agents in Spinal Fusion. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:540-551. [DOI: 10.1089/ten.teb.2017.0072] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rui M. Duarte
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Pedro Varanda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Rui L. Reis
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Ana Rita C. Duarte
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Jorge Correia-Pinto
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Pediatric Surgery Department, Hospital de Braga, Braga, Portugal
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Wen Y, Yang H, Liu Y, Liu Q, Wang A, Ding Y, Jin Z. Evaluation of BMMSCs-EPCs sheets for repairing alveolar bone defects in ovariectomized rats. Sci Rep 2017; 7:16568. [PMID: 29185450 PMCID: PMC5707386 DOI: 10.1038/s41598-017-16404-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 11/13/2017] [Indexed: 01/14/2023] Open
Abstract
The aim of this paper is to investigate the effect that bone marrow mesenchymal stem cells (BMMSCs) - endothelial progenitor cells (EPCs), BMMSCs and EPCs sheets have on repairing maxillary alveolar defects in ovariectomized (OVX) rats. In this study, after identification using multi-lineage differentiation and flow cytometry, BMMSCs and EPCs were isolated from female rats. The BMMSCs-EPCs, BMMSCs and EPCs sheets were detected by hematoxylin-eosin (H&E) staining, alkaline phosphatase (ALP) staining and qRT-PCR. Defects were created in maxillary alveoli and repaired with BMMSCs-EPCs, BMMSCs and EPCs sheets in OVX rats. The repair effects were determined by histological staining and micro-CT analysis at 2, 4 and 8 weeks after implantation. We aim to clarify whether BMMSCs-EPCs sheets are more effective in repairing alveolar bone defects than are BMMSCs and EPCs sheets in OVX rats. The results show that the osteogenic potential and the effect of bone repair are greater in the BMMSCs-EPCs sheet group and that this group has a higher ability to repair alveolar bone defects in OVX rats. These results suggest that BMMSCs-EPCs sheets have potential in clinical applications for treating humans with osteoporosis.
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Affiliation(s)
- Yi Wen
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Hongxu Yang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Yanli Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Qian Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Axian Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Yin Ding
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China
| | - Zuolin Jin
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, the Fourth Military Medical University, 145 Changle West Road, Xi'an, 710032, China.
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Assis HA, Elert NC, Azevedo ALBP, Braga IS, Serakides R, de Melo Ocarino N, de Goes AM, de Paula Careta F, Paneto GG, da Silva AMA, Boeloni JN. Dose-dependent effect of triiodothyronine on the chondrogenic differentiation of mesenchymal stem cells from the bone marrow of female rats. ACTA ACUST UNITED AC 2017; 70:89-100. [PMID: 29105086 DOI: 10.1111/jphp.12842] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 09/21/2017] [Indexed: 01/20/2023]
Abstract
OBJECTIVES Verify the in-vitro effect of triiodothyronine (T3) on the chondrogenic differentiation of female rat bone marrow mesenchymal stem cells (BMMSCs) over several time periods and at several doses. METHODS CD54 + /CD73 + /CD90 + BMMSCs from Wistar female rats were cultured in chondrogenic medium with or without T3 (0.01; 1; 100; 1000 nm). At seven, 14 and 21 days, the cell morphology, chondrogenic matrix formation and expression of Sox9 and collagen II were evaluated. KEY FINDINGS The dose of 100 nm did not alter the parameters evaluated in any of the periods studied. However, the 0.01 nm T3 dose improved the chondrogenic potential by increasing the chondrogenic matrix formation and expression of Sox9 and collagen II in at least one of the evaluated periods; the 1 nm T3 dose also improved the chondrogenic potential by increasing the chondrogenic matrix formation and the expression of collagen II in at least one of the evaluated periods. The 1000 nm T3 dose improved the chondrogenic potential by increasing the chondrogenic matrix formation and Sox9 expression in at least one of the evaluated periods. CONCLUSIONS T3 has a dose-dependent effect on the differentiation of BMMSCs from female rats.
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Affiliation(s)
- Higor A Assis
- Departamento de Medicina Veterinária, Centro de Ciências Agrárias e Engenharias (CCAE) da Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
| | - Nathalia C Elert
- Departamento de Medicina Veterinária, Centro de Ciências Agrárias e Engenharias (CCAE) da Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
| | - André Luiz B P Azevedo
- Departamento de Medicina Veterinária, Centro de Ciências Agrárias e Engenharias (CCAE) da Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
| | - Iolanda S Braga
- Departamento de Medicina Veterinária, Centro de Ciências Agrárias e Engenharias (CCAE) da Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
| | - Rogéria Serakides
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Natália de Melo Ocarino
- Núcleo de Células-Tronco e Terapia Celular (NCT-TCA), Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
| | - Alfredo M de Goes
- Laboratório de Imunologia Celular e Molecular, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, UFMG, Belo Horizonte, MG, Brazil
| | - Francisco de Paula Careta
- Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde (CCENS) da UFES, Alegre, ES, Brazil
| | - Greiciane G Paneto
- Departamento de Farmácia e Nutrição, Centro de Ciências Exatas, Naturais e da Saúde (CCENS) da UFES, Alegre, ES, Brazil
| | - Adriana M A da Silva
- Departamento de Biologia, Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
| | - Jankerle N Boeloni
- Departamento de Medicina Veterinária, Centro de Ciências Agrárias e Engenharias (CCAE) da Universidade Federal do Espírito Santo (UFES), Alegre, ES, Brazil
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Wang L, Huang C, Li Q, Xu X, Liu L, Huang K, Cai X, Xiao J. Osteogenic differentiation potential of adipose-derived stem cells from ovariectomized mice. Cell Prolif 2017; 50. [PMID: 28090705 DOI: 10.1111/cpr.12328] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/24/2016] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Osteoporosis (OP) is a systemic disease caused by imbalance between bone resorption and bone formation, commonly resulting from post-menopausal oestrogen deficiency. Although osteogenic differentiation potential of adipose-derived stem cells (ASCs) has been demonstrated, the effect of OP on osteogenic differentiation of ASCs remains unclear. Here, our work has been designed to compare proliferative capacity and osteogenic differentiation ability of ASCs obtained from osteoporotic mice and normal control mice. MATERIALS AND METHODS Twenty 14-week-old female C57BL/6 mice were randomly divided into two groups: one, the ovariectomy (OVX) group (n=10), the other being the sham operated (Sham) group (n=10). ASCs and OP-ASCs were obtained from subcutaneous fat of female inguinal sites. Cells were passaged three times prior to subsequent experimentation. The xCELLigence system was used to monitor cell adhesion and proliferation. Mineralized nodules of differentiated ASCs and OP-ASCs were analysed using Alizarin red staining after osteogenic induction. Expressions of osteogenic-specific genes including osteopontin (Opn) and runt-related transcription factor 2 (Runx2) were assessed by real-time PCR and expression of bone-related proteins was detected by Western blotting. RESULTS Numbers of cells in all groups increased steadily for 6 days; rate of cell proliferation in the Sham group was found to be higher than in the OVX group after 48 hours. Mineralized bone nodular structures were significantly more concentrated in the Sham group than in the OVX group by day 21, and mRNA levels of Runx2 in the OVX group were significantly lower than in the Sham group. Transcript levels of genes coding for Opn showed a similar pattern to those of Runx2. Western blot results indicated that protein expression levels of OPN and RUNX2 in the OVX group were lower than those in the Sham group, at each time point. CONCLUSIONS These results indicated that the proliferative capacity and osteogenic potential of ASCs were significantly impaired in osteoporotic mice compared to normal controls. However, use of autologous transplantation of modified OP-ASCs for treatment of OP, or combination of composite scaffolds and modified OP-ASCs for repair of osteoporotic bone defects, can overcome shortcomings of other methods.
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Affiliation(s)
- Lei Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China.,Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Chenglong Huang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qing Li
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Xiaomei Xu
- Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Lin Liu
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Kui Huang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
| | - Xiaoxiao Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingang Xiao
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China.,Orofacial Reconstruction and Regeneration Laboratory, The Affiliated Stomatology Hospital of Southwest Medical University, Luzhou, China
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Pei M, Li J, McConda DB, Wen S, Clovis NB, Danley SS. A comparison of tissue engineering based repair of calvarial defects using adipose stem cells from normal and osteoporotic rats. Bone 2015; 78:1-10. [PMID: 25940459 PMCID: PMC4466199 DOI: 10.1016/j.bone.2015.04.040] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Revised: 04/23/2015] [Accepted: 04/25/2015] [Indexed: 12/18/2022]
Abstract
Repairing large bone defects presents a significant challenge, especially in those people who have a limited regenerative capacity such as in osteoporotic (OP) patients. The aim of this study was to compare adipose stem cells (ASCs) from both normal (NORM) and ovariectomized (OVX) rats in osteogenic potential using both in vitro and in vivo models. After successful establishment of a rat OP model, we found that ASCs from OVX rats exhibited a comparable proliferation capacity to those from NORM rats but had significantly higher adipogenic and relatively lower osteogenic potential. Thirty-two weeks post-implantation with poly(lactic-co-glycolic acid) (PLGA) alone or PLGA seeded with osteogenic-induced ASCs for critical-size calvarial defects, the data from Herovici's collagen staining and micro-computed tomography suggested that the implantation of ASC-PLGA constructs exhibited a higher bone volume density compared to the PLGA alone group, especially in the NORM rat group. Intriguingly, the defects from OVX rats exhibited a higher bone volume density compared to NORM rats, especially for implantation of the PLGA alone group. Our results indicated that ASC based tissue constructs are more beneficial for the repair of calvarial defects in NORM rats while implantation of PLGA scaffold contributed to defect regeneration in OVX rats.
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Affiliation(s)
- Ming Pei
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506-9196, USA; Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506-9227, USA.
| | - Jingting Li
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506-9196, USA; Division of Exercise Physiology, West Virginia University, Morgantown, WV 26506-9227, USA
| | - David B McConda
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506-9196, USA
| | - Sijin Wen
- Department of Biostatistics, West Virginia University, Morgantown, 26506-9190, USA
| | - Nina B Clovis
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506-9196, USA
| | - Suzanne S Danley
- Stem Cell and Tissue Engineering Laboratory, Department of Orthopaedics, West Virginia University, Morgantown, WV 26506-9196, USA
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Effect of retinoic acid on the function of lipopolysaccharide-stimulated bone marrow stromal cells grown on titanium surfaces. Inflamm Res 2014; 64:63-70. [PMID: 25403801 DOI: 10.1007/s00011-014-0784-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 10/07/2014] [Accepted: 11/01/2014] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE AND DESIGN This study aimed to evaluate the effect of all-trans retinoic acid (atRA) on suppressing the inflammatory response and promoting the osteoblastic differentiation of bone marrow stromal cells (BMSCs) on titanium in a lipopolysaccharide (LPS)-induced microenvironment. METHODS BMSCs were divided into four groups and treated with LPS (1 μg/mL), atRA (1 nmol/L), LPS + atRA, or left untreated. Cells were then cultured on titanium surfaces and cell function compared. BMSC proliferation and osteoblastic differentiation were assessed using the MTT assay, alkaline phosphatase (ALP) activity, alizarin red staining, and quantitative real-time polymerase chain reaction (RT-PCR). Expression levels of inflammatory factors were measured by quantitative RT-PCR and enzyme-linked immunosorbent assay. RESULTS Increased mineralized nodule formation, ALP activity, osteocalcin, and osteopontin expression levels were detected in LPS + atRA-treated BMSCs after osteogenic induction, when compared with LPS-treated cells. In addition, the high levels of tumor necrosis factor-α, interleukin-1β, and receptor activator of nuclear factor-κ B ligand (RANKL) expression induced by LPS were inhibited after treatment with atRA. CONCLUSIONS Our results showed the effects of atRA on suppressing inflammatory responses and promoting osteoblastic differentiation of BMSCs on titanium in an LPS-induced microenvironment. This indicates the potential therapeutic value of atRA for treating peri-implants inflammatory disease.
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In vitro proliferation and differentiation potential of bone marrow-derived mesenchymal stem cells from ovariectomized rats. Tissue Cell 2014; 46:450-6. [PMID: 25257163 DOI: 10.1016/j.tice.2014.08.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 07/14/2014] [Accepted: 08/06/2014] [Indexed: 11/20/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (BMMSCs) from the patients suffering from age-related osteoporosis were found to have numerous degeneration, such as decreased growth rate, impaired capacity of differentiating into local tissue, and repressed telomerase activity. However, it is not clear whether post-menopausal osteoporotic bone is either subject to such decline in cellular function. In the present study, bone marrow cells were harvested from ovariectomized (OVX) and Sham rats and cultured in vitro at 3 months post-surgery. MTT assay indicated that the proliferation potential of (OVX)BMMSCs was always higher than that of (Sham)BMMSCs, no matter cultured in basic, osteoblastic or adipogenic medium. Alkaline phosphatase activity assay, Alizarin red S staining, Oil red O staining and real-time RT-PCR analysis further demonstrated that bilateral ovariectomization positively influenced the osteoblastic and adipogenic differentiation potential of BMMSCs, this action may be partly mediated through up-regulation of osteoblastic special markers core binding factor a1, collagen type I and low-density lipoprotein receptor-related protein 5, as well as adipogenic special markers peroxisome proliferators activated receptor gamma, CCAAT/enhancer binding protein alpha and adipocyte lipid-binding protein 2. These results may hold great promise for using post-menopausal osteoporotic bone as an attractive autologous marrow source for tissue engineering and cell-based therapies.
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Simvastatin coating of TiO2 scaffold induces osteogenic differentiation of human adipose tissue-derived mesenchymal stem cells. Biochem Biophys Res Commun 2014; 447:139-44. [DOI: 10.1016/j.bbrc.2014.03.133] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 03/25/2014] [Indexed: 01/18/2023]
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