1
|
Xu Z, Hu B, Zheng G, Yu W, Yang C, Wang H, Chen K, He S, Liang L, Xu C, Wu X, Zang F, Yuan WE, Chen H. Metformin-grafted polycaprolactone nanoscaffold targeting sensory nerve controlled fibroblasts reprograming to alleviate epidural fibrosis. J Control Release 2024; 367:791-805. [PMID: 38341179 DOI: 10.1016/j.jconrel.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/17/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Epidural fibrosis (EF), associated with various biological factors, is still a major troublesome clinical problem after laminectomy. In the present study, we initially demonstrate that sensory nerves can attenuate fibrogenic progression in EF animal models via the secretion of calcitonin gene-related peptide (CGRP), suggesting a new potential therapeutic target. Further studies showed that CGRP could inhibit the reprograming activation of fibroblasts through PI3K/AKT signal pathway. We subsequently identified metformin (MET), the most widely prescribed medication for obesity-associated type 2 diabetes, as a potent stimulator of sensory neurons to release more CGRP via activating CREB signal way. We copolymerized MET with innovative polycaprolactone (PCL) nanofibers to develop a metformin-grafted PCL nanoscaffold (METG-PCLN), which could ensure stable long-term drug release and serve as favorable physical barriers. In vivo results demonstrated that local implantation of METG-PCLN could penetrate into dorsal root ganglion cells (DRGs) to promote the CGRP synthesis, thus continuously inhibit the fibroblast activation and EF progress for 8 weeks after laminectomy, significantly better than conventional drug loading method. In conclusion, this study reveals the unprecedented potential of sensory neurons to counteract EF through CGRP signaling and introduces a novel strategy employing METG-PCLN to obstruct EF by fine-tuning sensory nerve-regulated fibrogenesis.
Collapse
Affiliation(s)
- Zeng Xu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Bo Hu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Genjiang Zheng
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Wei Yu
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China; Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chen Yang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Hui Wang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Keyi Chen
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Shatong He
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Lei Liang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Chen Xu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Xiaodong Wu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Fazhi Zang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China.
| | - Wei-En Yuan
- Shanghai Frontiers Science Center of Drug Target Identification and Delivery, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China; Engineering Research Center of Cell & Therapeutic Antibody, Ministry of Education, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China; National Key Laboratory of Innovative Immunotherapy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Huajiang Chen
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai 200003, China.
| |
Collapse
|
2
|
Kaasalainen M, Zhang R, Vashisth P, Birjandi AA, S'Ari M, Martella DA, Isaacs M, Mäkilä E, Wang C, Moldenhauer E, Clarke P, Pinna A, Zhang X, Mustfa SA, Caprettini V, Morrell AP, Gentleman E, Brauer DS, Addison O, Zhang X, Bergholt M, Al-Jamal K, Volponi AA, Salonen J, Hondow N, Sharpe P, Chiappini C. Lithiated porous silicon nanowires stimulate periodontal regeneration. Nat Commun 2024; 15:487. [PMID: 38216556 PMCID: PMC10786831 DOI: 10.1038/s41467-023-44581-5] [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: 12/07/2022] [Accepted: 12/20/2023] [Indexed: 01/14/2024] Open
Abstract
Periodontal disease is a significant burden for oral health, causing progressive and irreversible damage to the support structure of the tooth. This complex structure, the periodontium, is composed of interconnected soft and mineralised tissues, posing a challenge for regenerative approaches. Materials combining silicon and lithium are widely studied in periodontal regeneration, as they stimulate bone repair via silicic acid release while providing regenerative stimuli through lithium activation of the Wnt/β-catenin pathway. Yet, existing materials for combined lithium and silicon release have limited control over ion release amounts and kinetics. Porous silicon can provide controlled silicic acid release, inducing osteogenesis to support bone regeneration. Prelithiation, a strategy developed for battery technology, can introduce large, controllable amounts of lithium within porous silicon, but yields a highly reactive material, unsuitable for biomedicine. This work debuts a strategy to lithiate porous silicon nanowires (LipSiNs) which generates a biocompatible and bioresorbable material. LipSiNs incorporate lithium to between 1% and 40% of silicon content, releasing lithium and silicic acid in a tailorable fashion from days to weeks. LipSiNs combine osteogenic, cementogenic and Wnt/β-catenin stimuli to regenerate bone, cementum and periodontal ligament fibres in a murine periodontal defect.
Collapse
Affiliation(s)
- Martti Kaasalainen
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Ran Zhang
- Department of Oral Pathology, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Priya Vashisth
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Anahid Ahmadi Birjandi
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Mark S'Ari
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Mark Isaacs
- Department of Chemistry, University College London, London, WC1H 0AJ, UK
- HarwellXPS, Research Complex at Harwell, Rutherford Appleton Labs, Didcot, OX11 0DE, UK
| | - Ermei Mäkilä
- Department of Physics and Astronomy, University of Turku, Turku, 20014, Finland
| | - Cong Wang
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Evelin Moldenhauer
- Postnova Analytics GmbH, Rankinestr. 1, Landsberg am Lech, 86899, Germany
| | - Paul Clarke
- Postnova Analytics GmbH, Rankinestr. 1, Landsberg am Lech, 86899, Germany
| | - Alessandra Pinna
- Department of Materials, Imperial College London, London, SW72AZ, UK
- The Francis Crick Institute, London, NW11AT, UK
- School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, GU2 7XH, UK
| | - Xuechen Zhang
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Salman A Mustfa
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Valeria Caprettini
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Alexander P Morrell
- Centre for Oral Clinical & Translational Sciences, King's College London, London, SE1 9RT, UK
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Delia S Brauer
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Jena, 07743, Germany
| | - Owen Addison
- Centre for Oral Clinical & Translational Sciences, King's College London, London, SE1 9RT, UK
| | - Xuehui Zhang
- Department of Dental Materials & NMPA Key Laboratory for Dental Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Mads Bergholt
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Khuloud Al-Jamal
- Institute of Pharmaceutical Science, King's College London, London, SE1 9NH, UK
| | - Ana Angelova Volponi
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
| | - Jarno Salonen
- Department of Physics and Astronomy, University of Turku, Turku, 20014, Finland
| | - Nicole Hondow
- School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Paul Sharpe
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK
- Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Brno, 602 00, Czech Republic
| | - Ciro Chiappini
- Centre for Craniofacial and Regenerative Biology, King's College London, London, SE1 9RT, UK.
- London Centre for Nanotechnology, King's College London, London, WC2R 2LS, UK.
| |
Collapse
|
3
|
Mohsen ROM, Hassan R. A comparative study of the therapeutic effect of bone marrow mesenchymal stem cells versus insulin on mandibular dento-alveolar complex collagen formation and beta-catenin expression in experimentally induced type I diabetes. Saudi Dent J 2023; 35:668-677. [PMID: 37817792 PMCID: PMC10562111 DOI: 10.1016/j.sdentj.2023.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/09/2023] [Accepted: 05/24/2023] [Indexed: 10/12/2023] Open
Abstract
Objective To assess and compare the therapeutic effect of bone marrow mesenchymal stem cells (BM-MSCs) versus insulin on mandibular dento-alveolar complex collagen formation and beta-catenin (β-catenin) expression in experimentally induced type I diabetes in albino rat. Design Twenty-eight male albino rats were equally divided as follows; Group I: was composed of rats which received no drug. The remaining rats were administrated a single streptozotocin (STZ) (40 mg/kg) intra-peritoneal injection. After affirmation of diabetes induction, the rats were divided into: Group II: Diabetic rats were given no treatment. Group III: Diabetic rats received a single BM-MSCs intravenous injection (1x106 cells). Group IV: Diabetic rats were given a daily insulin subcutaneous injection (5 IU/kg). After 28 days, mandibles were processed and stained by Hematoxylin & Eosin (H&E), Masson's trichrome and anti-β-catenin antibody. A statistical analysis was performed to measure positive area% of Masson's trichrome and β-catenin. Results Dento-alveolar complex tissues and cells of Group II showed destructive changes histologically, while Groups III and IV demonstrated improved histological features. Group II presented almost old collagen in all dento-alveolar complex tissues, and nearly negative β-catenin expression. Groups III and IV revealed a newly formed collagen intermingled with very few areas of old collagen, and both groups showed positive β-catenin immunoreactivity. Statistically, Groups III and IV represented the highest mean values of Masson's trichrome area% and β-catenin area%, while Group II reported the lowest mean. Conclusions Streptozotocin has a destructive effect on the dento-alveolar complex structure and function. BM-MSCs and insulin show regenerative capacity in STZ-affected periodontal tissues, and statistically, they increase collagen formation and β-catenin expression.
Collapse
Affiliation(s)
| | - Rabab Hassan
- Associate professor of Oral Biology, Faculty of Dentistry, Ain Shams University, Cairo, Egypt
| |
Collapse
|
4
|
Small Molecule GSK-3 Inhibitors Safely Promote the Proliferation and Viability of Human Dental Pulp Stem Cells-In Vitro. Biomedicines 2023; 11:biomedicines11020542. [PMID: 36831078 PMCID: PMC9953089 DOI: 10.3390/biomedicines11020542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
Small molecules have demonstrated promising results as successful alternatives to growth factors. In this study, focus was drawn to CHIR99021 and tideglusib as GSK-3 inhibitors known for their anti-inflammatory and regenerative potential. The effect of both tideglusib and CHIR99021 on the proliferation, viability, and stemness of human dental pulp stem cells (hDPSCs) was investigated to assess their possible role in regenerative dentistry. Briefly, hDPSCs were isolated from sound premolars extracted for orthodontic purposes. Cytotoxicity and proliferation assessment were performed via cell counting kit-8 followed by flow cytometric analysis of apoptotic marker ANNEXIN V. The effect of both small molecules on the stemness of hDPSCs was analyzed by qRT-PCR. Both tideglusib and CHIR99021 were proven to be safe on hDPSCs. The tideglusib concentration that resulted in higher viable cells was 100 nM, while the concentration for CHIR99021 was 5 nM. Both small molecules successfully induced cellular proliferation and demonstrated minimal expression of ANNEXIN V, indicative of the absence of cellular apoptosis and further confirming their positive effect on proliferation. Finally, both small molecules enhanced stemness markers expression as evidenced by qRT-PCR, which, again, highlighted the positive effect of both tideglusib and CHIR99021 on safely promoting the proliferation of hDPSCs while maintaining their stemness.
Collapse
|
5
|
Ma F, Luo S, Lu C, Jiang X, Chen K, Deng J, Ma S, Li Z. The role of Nrf2 in periodontal disease by regulating lipid peroxidation, inflammation and apoptosis. Front Endocrinol (Lausanne) 2022; 13:963451. [PMID: 36482997 PMCID: PMC9723463 DOI: 10.3389/fendo.2022.963451] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/02/2022] [Indexed: 11/23/2022] Open
Abstract
Nuclear factor E2-related factor 2(Nrf2) is a transcription factor that mainly regulates oxidative stress in the body. It initiates the expression of several downstream antioxidants, anti-inflammatory proteins and detoxification enzymes through the Kelch-like ECH-associating protein 1 (Keap1) -nuclear factor E2-related factor 2(Nrf2) -antioxidant response element (ARE) signaling pathway. Its anti-apoptosis, anti-oxidative stress and anti-inflammatory effects have gradually become the focus of periodontal disease research in recent years. In this paper, the structure and function of Nrf2 pathway and its mechanism of action in the treatment of periodontitis in recent years were analyzed and summarized, so as to further clarify the relationship between Nrf2 pathway and oxidative stress in the occurrence and development of periodontitis, and to provide ideas for the development of new treatment drugs targeting Nrf2 pathway.
Collapse
Affiliation(s)
- Fengyu Ma
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- School of Stomatology, Jinan University, Guangzhou, Guangdong, China
| | - Shangdie Luo
- Department of Orthodontics, Huizhou Stomatological Hospital, Huizhou, Guangdong, China
| | - Chunting Lu
- Science and Education Office, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Xinrong Jiang
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- School of Stomatology, Jinan University, Guangzhou, Guangdong, China
| | - Kexiao Chen
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- School of Stomatology, Jinan University, Guangzhou, Guangdong, China
| | - Jianwen Deng
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- School of Stomatology, Jinan University, Guangzhou, Guangdong, China
| | - Shuyuan Ma
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Zejian Li
- Department of Stomatology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
- School of Stomatology, Jinan University, Guangzhou, Guangdong, China
- Chaoshan Hospital, The First Affiliated Hospital of Jinan University, Chaozhou, Guangdong, China
| |
Collapse
|
6
|
Han J, Yang K, An J, Jiang N, Fu S, Tang X. The Role of NRF2 in Bone Metabolism - Friend or Foe? Front Endocrinol (Lausanne) 2022; 13:813057. [PMID: 35282459 PMCID: PMC8906930 DOI: 10.3389/fendo.2022.813057] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 01/05/2022] [Indexed: 12/14/2022] Open
Abstract
Bone metabolism is closely related to oxidative stress. As one of the core regulatory factors of oxidative stress, NRF2 itself and its regulation of oxidative stress are both involved in bone metabolism. NRF2 plays an important and controversial role in the regulation of bone homeostasis in osteoblasts, osteoclasts and other bone cells. The role of NRF2 in bone is complex and affected by several factors, such as its expression levels, age, sex, the presence of various physiological and pathological conditions, as well as its interaction with certains transcription factors that maintain the normal physiological function of the bone tissue. The properties of NRF2 agonists have protective effects on the survival of osteogenic cells, including osteoblasts, osteocytes and stem cells. Activation of NRF2 directly inhibits osteoclast differentiation by resisting oxidative stress. The effects of NRF2 inhibition and hyperactivation on animal skeleton are still controversial, the majority of the studies suggest that the presence of NRF2 is indispensable for the acquisition and maintenance of bone mass, as well as the protection of bone mass under various stress conditions. More studies show that hyperactivation of NRF2 may cause damage to bone formation, while moderate activation of NRF2 promotes increased bone mass. In addition, the effects of NRF2 on the bone phenotype are characterized by sexual dimorphism. The efficacy of NRF2-activated drugs for bone protection and maintenance has been verified in a large number of in vivo and in vitro studies. Additional research on the role of NRF2 in bone metabolism will provide novel targets for the etiology and treatment of osteoporosis.
Collapse
Affiliation(s)
- Jie Han
- The First Clinical College of Lanzhou University, Lanzhou, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Kuan Yang
- The First Clinical College of Lanzhou University, Lanzhou, China
| | - Jinyang An
- The First Clinical College of Lanzhou University, Lanzhou, China
| | - Na Jiang
- The First Clinical College of Lanzhou University, Lanzhou, China
| | - Songbo Fu
- The First Clinical College of Lanzhou University, Lanzhou, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, China
| | - Xulei Tang
- The First Clinical College of Lanzhou University, Lanzhou, China
- Department of Endocrinology, The First Hospital of Lanzhou University, Lanzhou, China
- *Correspondence: Xulei Tang,
| |
Collapse
|
7
|
Wei Y, Fu J, Wu W, Ma P, Ren L, Yi Z, Wu J. Quercetin Prevents Oxidative Stress-Induced Injury of Periodontal Ligament Cells and Alveolar Bone Loss in Periodontitis. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:3509-3522. [PMID: 34408403 PMCID: PMC8366957 DOI: 10.2147/dddt.s315249] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 07/28/2021] [Indexed: 01/10/2023]
Abstract
Purpose Emerging evidence has indicated that oxidative stress (OS) contributes to periodontitis. Periodontal ligament cells (PDLCs) are important for the regeneration of periodontal tissue. Quercetin, which is extracted from fruits and vegetables, has strong antioxidant capabilities. However, whether and how quercetin affects oxidative damage in PDLCs during periodontitis remains unknown. The aim of this study was to assess the effects of quercetin on oxidative damage in PDLCs and alveolar bone loss in periodontitis and underlying mechanisms. Materials and Methods The tissue block culture method was used to extract human PDLCs (hPDLCs). First, a cell counting kit 8 (CCK-8) assay was used to identify the optimal concentrations of hydrogen peroxide (H2O2) and quercetin. Subsequently, a 2,7-dichlorodihydrofluorescein diacetate (DCFH-DA) probe, RT-qPCR, Western blotting and other methods were used to explore the effects of quercetin on OS in hPDLCs and the underlying mechanism. Finally, quercetin was administered to mice with periodontitis through gavage, and the effect of quercetin on the level of OS and alveolar bone resorption in these mice was observed by immunofluorescence, microcomputed tomography (micro-CT), hematoxylin and eosin staining (H&E) staining and so on. Results Quercetin at 5 μM strongly activated NF-E2-related factor 2 (NRF2) signaling, alleviated oxidative damage and enhanced the antioxidant capacity of hPDLCs. In addition, quercetin reduced cellular senescence and protected the osteogenic ability of hPDLCs. Finally, quercetin activated NRF2 signaling in the periodontal ligaments, reduced the OS level of mice with periodontitis, and slowed the absorption of alveolar bone in vivo. Conclusion Quercetin can increase the antioxidant capacity of PDLCs and reduce OS damage by activating the NRF2 signaling pathway, which alleviates alveolar bone loss in periodontitis.
Collapse
Affiliation(s)
- Yu Wei
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Jiayao Fu
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Wenjing Wu
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Pengfei Ma
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Le Ren
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Zimei Yi
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| | - Junhua Wu
- Department of Prosthodontics, School and Hospital of Stomatology, Tongji University and Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, People's Republic of China
| |
Collapse
|
8
|
Li L, Li J, Wang Y, Liu X, Li S, Wu Y, Tang W, Qiu Y. Resveratrol prevents inflammation and oxidative stress response in LPS-induced human gingival fibroblasts by targeting the PI3K/AKT and Wnt/β-catenin signaling pathways. Genet Mol Biol 2021; 44:e20200349. [PMID: 34227646 PMCID: PMC8258621 DOI: 10.1590/1678-4685-gmb-2020-0349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 04/22/2021] [Indexed: 11/22/2022] Open
Abstract
This study aimed to elucidate the anti-inflammatory and antioxidant properties of resveratrol (RSV) in human gingival fibroblasts (HGFs) following stimulation by P. gingivalis lipopolysaccharide (LPS). The levels of the inflammatory cytokines IL-1β, IL-6, IL-8 and TNFα, the activity of the antioxidant enzymes SOD and GSH-Px, and the levels of MDA, were evaluated by ELISA. It was observed that the expression of IL-1β, IL-6, IL-8 and TNFα in LPS-induced HGFs was significantly downregulated by RSV in a dose-dependent manner. RSV also partly increased oxidative stress (OS)-related factors, including SOD and GSH-Px, which was accompanied by a decrease in MDA production, although the results were not statistically significant. Additionally, RSV-induced deactivation of the PI3K/AKT and Wnt/β-catenin pathways in LPS-induced HGFs was observed by western blot analysis. Subsequently, it was demonstrated treatment with PI3K/AKT pathway inhibitor (LY294002) or Wnt/β-catenin pathway inhibitor (Dickkopf-1, DKK-1) could further enhance the anti-inflammatory and antioxidant effects of RSV by downregulating the expression of IL-1β, IL-6, IL-8 and TNFα, and the production of MDA, and increasing the activity of SOD and GSH-Px in LPS-induced HGFs. These results suggested RSV attenuated the inflammation and OS injury of P. gingivalis LPS-treated HGFs by deactivating the PI3K/AKT and Wnt/β-catenin signaling pathways.
Collapse
Affiliation(s)
- Lihua Li
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Junxiong Li
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Yujiao Wang
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Xin Liu
- University of Chinese Academy of Sciences, Chongqing Savaid Stomatology Hospital, Department of General Dentistry, Chongqing, P.R. China
| | - Siyu Li
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Yan Wu
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Wanrong Tang
- North Sichuan Medical College, Department of Dentistry, Nanchong, Sichuan, P.R. China
| | - Ya Qiu
- Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, P.R. China
| |
Collapse
|
9
|
Kim JE, Kim TG, Lee YH, Yi HK. Phelligridin D maintains the function of periodontal ligament cells through autophagy in glucose-induced oxidative stress. J Periodontal Implant Sci 2020; 50:291-302. [PMID: 33124207 PMCID: PMC7606896 DOI: 10.5051/jpis.1903560178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 05/19/2020] [Accepted: 06/24/2020] [Indexed: 11/09/2022] Open
Abstract
Purpose The objective of this study was to investigate whether phelligridin D could reduce glucose-induced oxidative stress, attenuate the resulting inflammatory response, and restore the function of human periodontal ligament cells (HPDLCs). Methods Primary HPDLCs were isolated from healthy human teeth and cultured. To investigate the effect of phelligridin D on glucose-induced oxidative stress, HPDLCs were treated with phelligridin D, various concentrations of glucose, and glucose oxidase. Glucose-induced oxidative stress, inflammatory molecules, osteoblast differentiation, and mineralization of the HPDLCs were measured by hydrogen peroxide (H2O2) generation, cellular viability, alkaline phosphatase (ALP) activity, alizarin red staining, and western blot analyses. Results Glucose-induced oxidative stress led to increased production of H2O2, with negative impacts on cellular viability, ALP activity, and calcium deposition in HPDLCs. Furthermore, HPDLCs under glucose-induced oxidative stress showed induction of inflammatory molecules (intercellular adhesion molecule-1, vascular cell adhesion protein-1, tumor necrosis factor-alpha, interleukin-1-beta) and disturbances of osteogenic differentiation (bone morphogenetic protein-2, and -7, runt-related transcription factor-2), cementogenesis (cementum protein-1), and autophagy-related molecules (autophagy related 5, light chain 3 I/II, beclin-1). Phelligridin D restored all these molecules and maintained the function of HPDLCs even under glucose-induced oxidative stress. Conclusions This study suggests that phelligridin D reduces the inflammation that results from glucose-induced oxidative stress and restores the function of HPDLCs (e.g., osteoblast differentiation) by upregulating autophagy.
Collapse
Affiliation(s)
- Ji Eun Kim
- Department of Oral Biochemistry, Institute of Oral Bioscience, Jeonbuk National University School of Dentistry, Jeonju, Korea
| | - Tae Gun Kim
- Department of Oral Biochemistry, Institute of Oral Bioscience, Jeonbuk National University School of Dentistry, Jeonju, Korea
| | - Young Hee Lee
- Department of Oral Biochemistry, Institute of Oral Bioscience, Jeonbuk National University School of Dentistry, Jeonju, Korea
| | - Ho Keun Yi
- Department of Oral Biochemistry, Institute of Oral Bioscience, Jeonbuk National University School of Dentistry, Jeonju, Korea.
| |
Collapse
|
10
|
Saito MT, Mofatto LS, Albiero ML, Casati MZ, Sallum EA, Nociti Junior FH, SilvÉrio KG. Transcriptome profile of highly osteoblastic/cementoblastic periodontal ligament cell clones. J Appl Oral Sci 2020; 28:e20200242. [PMID: 33111882 PMCID: PMC9648949 DOI: 10.1590/1678-7757-2020-0242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 07/09/2020] [Indexed: 11/23/2022] Open
Abstract
Heterogeneous cell populations of osteo/cementoblastic (O/C) or fibroblastic phenotypes constitute the periodontal dental ligament (PDL). A better understanding of these PDL cell subpopulations is essential to propose regenerative approaches based on a sound biological rationale.
Collapse
Affiliation(s)
- Miki Taketomi Saito
- Universidade Federal do Pará, Instituto de Ciências da Saude, Departmento de Saúde Pública, Belém, Pará, Brasil
| | - Luciana Souto Mofatto
- Universidade Estadual de Campinas, Instituto de Biologia (UNICAMP), Departamento de Genética e Evolução, Microbiologia e Imunologia, Laboratório de Genônica e Expressão, Campinas, SP, Brasil
| | - Mayra Laino Albiero
- Universidade de Sorocaba, (UNISO), Departmento de Periodontia, Sorocaba, SP, Brasil
| | - Márcio Zafallon Casati
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Odontologia de Piracicaba, Departmento de Prótese e Periodontia, Divisão de Periodontia, Piracicaba, SP, Brasil
| | - Enilson Antonio Sallum
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Odontologia de Piracicaba, Departmento de Prótese e Periodontia, Divisão de Periodontia, Piracicaba, SP, Brasil
| | - Francisco Humberto Nociti Junior
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Odontologia de Piracicaba, Departmento de Prótese e Periodontia, Divisão de Periodontia, Piracicaba, SP, Brasil
| | - Karina Gonzales SilvÉrio
- Universidade Estadual de Campinas (UNICAMP), Faculdade de Odontologia de Piracicaba, Departmento de Prótese e Periodontia, Divisão de Periodontia, Piracicaba, SP, Brasil
| |
Collapse
|
11
|
Rabea AA. Histological, Histochemical and Immunohistochemical Evaluation of the Role of Bone Marrow-Derived Mesenchymal Stem Cells on the Structure of Periodontal Tissues in Carbimazole-Treated Albino Rats. Arch Oral Biol 2020; 119:104887. [PMID: 32919103 DOI: 10.1016/j.archoralbio.2020.104887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 08/26/2020] [Accepted: 08/26/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To elucidate the role of bone marrow-mesenchymal stem cells (BM-MSCs) on the structure of periodontal tissues in carbimazole (antithyroid drug) treated rats at different durations. DESIGN 28 albino rats were divided into: Group I: received distilled water. Group II: received therapeutic dose of carbimazole. Group III: received carbimazole then single injection of BM-MSCs by the end of 3rd week. Group IV: received carbimazole and single injection of BM-MSCs at the beginning of the experiment. Specimens were examined by light microscope. New collagen and β-catenin-immunoreactivity area% were assessed histomorphometrically, and statistically using ANOVA test. RESULTS Histological examination revealed normal periodontal tissues structure in Groups I & IV. Group II showed disorganized periodontal ligament fibers and different stainability of cementum and alveolar bone. Group III illustrated dense periodontal ligament fibers, normal stainability of cementum and most of alveolar bone. Masson's trichrome results of Groups I & IV illustrated large areas of new collagen in periodontal ligament, old collagen in cementum and intermingled old and new collagen in alveolar bone. Group II showed old collagen. Group III revealed only new collagen. β-catenin-immunoreactivity was strong in Groups I & IV, negative in Group II and moderate in Group III. Statistically, Group III showed highest mean of new collagen area% followed by Groups I, IV and II respectively. Highest mean of β-catenin-immunoreactivity area% was for Group I followed by Groups IV, III and II respectively. CONCLUSIONS Carbimazole has damaging effects and BM-MSCs are capable to mend these destructive outcomes in time dependent manner.
Collapse
Affiliation(s)
- Amany A Rabea
- Associate Professor of Oral Biology, Faculty of Oral and Dental Medicine, Future University in Egypt, Cairo, Egypt.
| |
Collapse
|
12
|
ONCU B, YİLMAZ A, KARADEMİR B, ALTUNOK EÇ, KURU L, AĞRALI ÖB. Cytotoxicity and Collagen Expression Effects of Tideglusib Administration on Human Periodontal Cells: An In-Vitro Study. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2020. [DOI: 10.33808/clinexphealthsci.709924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
13
|
Shi R, Yang H, Lin X, Cao Y, Zhang C, Fan Z, Hou B. Analysis of the characteristics and expression profiles of coding and noncoding RNAs of human dental pulp stem cells in hypoxic conditions. Stem Cell Res Ther 2019; 10:89. [PMID: 30867055 PMCID: PMC6417198 DOI: 10.1186/s13287-019-1192-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/08/2019] [Accepted: 02/25/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Human dental pulp stem cell (DPSC)-mediated regenerative endodontics is a promising therapy for damaged teeth; however, the hypoxic environment in root canals can affect tissue regeneration. In this study, we investigate the characteristics and possible regulatory mechanisms of DPSC function under hypoxic conditions. METHODS Human DPSCs were cultured under normoxia (20% O2) and hypoxia (3% O2). DPSC proliferation and osteo/odontogenic differentiation potential were assessed by Cell Counting Kit-8 (CCK8) assay, carboxyfluorescein succinimidyl ester (CFSE) assay, alkaline phosphatase (ALP) activity, Alizarin red staining, real-time RT-PCR assays, and western blot analysis. Microarray and bioinformatic analyses were performed to investigate the differences in the mRNA, lncRNA, and miRNA expression profiles of DPSCs. RESULTS DPSCs exhibited a more powerful proliferation ability and lower osteo/odontogenic differentiation potential in hypoxic conditions. A total of 60 mRNAs (25 upregulated and 35 downregulated), 47 lncRNAs (20 upregulated and 27 downregulated), and 14 miRNAs (7 upregulated and 7 downregulated) in DPSCs were differentially expressed in the hypoxia group compared with the normoxia group. Bioinformatic analysis identified that 7 mRNAs (GRPR, ERO1L, ANPEP, EPHX1, PGD, ANGPT1, and NQO1) and 5 lncRNAs (AF085958, AX750575, uc002czn.2, RP3-413H6.2, and six-twelve leukemia (STL)) may be associated with DPSCs during hypoxia according to CNC network analysis, while 28 mRNAs (including GYS1, PRKACB, and NQO1) and 13 miRNAs (including hsa-miR-3916 and hsa-miR-192-5p) may be involved according to miRNA target gene network analysis. The depletion of one candidate lncRNA, STL, inhibited the osteo/odontogenic differentiation potentials of DPSCs. CONCLUSIONS Our results revealed that hypoxia could enhance the proliferation ability and impair the osteo/odontogenic differentiation potential of DPSCs in vitro. Furthermore, our results identified candidate coding and noncoding RNAs that could be potential targets for improving DPSC function in regenerative endodontics and lead to a better understanding of the mechanisms of hypoxia's effects on DPSCs.
Collapse
Affiliation(s)
- Ruitang Shi
- Department of Endodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Haoqing Yang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Xiao Lin
- Department of Implant Dentistry, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Yangyang Cao
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Chen Zhang
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Zhipeng Fan
- Laboratory of Molecular Signaling and Stem Cells Therapy, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China.
| | - Benxiang Hou
- Department of Endodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China.
| |
Collapse
|
14
|
Li P, Wang Y, Liu X, Zhou Z, Wang J, Zhou H, Zheng L, Yang L. Atypical antipsychotics induce human osteoblasts apoptosis via Wnt/β-catenin signaling. BMC Pharmacol Toxicol 2019; 20:10. [PMID: 30755277 PMCID: PMC6373048 DOI: 10.1186/s40360-019-0287-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 01/22/2019] [Indexed: 01/13/2023] Open
Abstract
Background There is evidence that atypical antipsychotics (APs) increase risk of osteoporosis in schizophrenia patients, however the mechanism is unclear. The aim of the study was to explore the molecular mechanisms about Wnt/β-catenin signal pathway underlying the osteal side effects of APs. Methods We cultured human osteoblast cell line hFob1. 19 (OB) treatments with olanzapine, risperidone, amisulpride, aripiprazole or resveratrol in vitro. OB cells viability was detected by cell viability assay. OB cells apoptosis was analyzed by flow cytometry (FCM). Further apoptosis-related marker and β-catenin expression was analyzed by Western blot and Immunofluorescence analysis. Results Compared with the control group, proliferation of OB cells decreased and apoptosis rates of OB cells increased significantly in APs group (p < 0.05). There were a reduced level of Bcl-2, Mcl-1 (antiapoptotic marker) and an elevated level of Bax, Cleaved-Caspase3 (proapoptotic marker) in APs group (p < 0.05). Simultaneously, β-catenin expression decreased in cytoplasm and nucleus (p < 0.05). Compared with the just APs group, the apoptosis rates decreased and β-catenin expression increased significantly in resevratrol combined with APs group (p < 0.05). Correlation analysis showed positive correlation between β-catenin expression and the apoptotic rate in OB cells (r = − 0.515, p < 0.05). Conclusions APs cause OB cells apoptosis relating to Wnt/β-catenin signaling while resevratrol could reverse this phenomenon. Our study could lay the foundation for overcoming the APs-induced osteal side effects to improve the life quality of schizophrenia patients.
Collapse
Affiliation(s)
- Peifan Li
- Department of Psychiatry, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Yiming Wang
- Department of Psychiatry, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China. .,Neuroelectrophysiological testing center, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China. .,Undergraduate mental health education and counseling center, Guizhou Medical University, Guiyang, 550004, Guizhou, China.
| | - Xingde Liu
- Department of Cardiology, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China.
| | - Zhen Zhou
- Clinical research center, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Jun Wang
- Clinical research center, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Haiyan Zhou
- Clinical research center, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Lei Zheng
- Department of Psychiatry, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| | - Lixia Yang
- Department of Psychiatry, Hospital Affiliated to Guizhou Medical University, Guiyang, 550004, Guizhou, China
| |
Collapse
|
15
|
Mitochondrial abnormalities are involved in periodontal ligament fibroblast apoptosis induced by oxidative stress. Biochem Biophys Res Commun 2019; 509:483-490. [DOI: 10.1016/j.bbrc.2018.12.143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 12/19/2018] [Indexed: 12/20/2022]
|
16
|
Yang X, Tang S, Li D, Yu X, Wang F, Xiao X. DIDS inhibits overexpression BAK1-induced mitochondrial apoptosis through GSK3β/β-catenin signaling pathway. J Cell Physiol 2018; 233:5070-5077. [PMID: 29231977 DOI: 10.1002/jcp.26396] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 12/04/2017] [Indexed: 01/26/2023]
Abstract
Bcl-2 homologous antagonist/killer (BAK1) is a critical regulator of mitochondrial apoptosis. Although upregulation of BAK1 induces apoptosis has been established, the underlying molecular mechanism is far from clear. 4,4'-diisothiocyanostilbene-2,2'-disulfonic acid (DIDS), an organic anion used as a blocker of anion exchangers and chloride channels, has been proved to rescue cell apoptosis both in vitro and in vivo. However, whether DIDS can inhibit BAK1-induced mitochondrial apoptosis remains undefined. Thus, this study aimed to explore whether DIDS could protect BAK1-induced apoptosis through GSK3β/β-catenin signaling pathway. The results showed overexpression BAK1 in 293T cells induced mitochondrial apoptosis accompanied by increasing the expression levels of cleaved caspase-9, -3, poly (ADP-ribose) polymerase (PARP) and reducing the MMP. Furthermore, overexpression BAK1 decreased the expression levels of Ser9-GSK3β and β-catenin. In addition, lithium chloride (LiCl), an activator of Wnt/β-catenin signaling pathway, markedly attenuated overexpression BAK1-induced mitochondrial apoptosis by restoring the expression levels of Ser9-GSK3β and β-catenin. Finally, DIDS absolutely abolished overexpression BAK1-mediated mitochondrial apoptosis through recovering the expression levels of Ser9-GSK3β and β-catenin. Taken together, our results reveal that DIDS blocks overexpression BAK1-induced mitochondrial apoptosis through GSK3β/β-catenin pathway.
Collapse
Affiliation(s)
- Xiayun Yang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| | - Shusheng Tang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| | - Daowen Li
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| | - Xiaohong Yu
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| | - Fuyun Wang
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| | - Xilong Xiao
- Department of Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing, Haidian District, China
| |
Collapse
|
17
|
Hernández-Ríos P, Pussinen PJ, Vernal R, Hernández M. Oxidative Stress in the Local and Systemic Events of Apical Periodontitis. Front Physiol 2017; 8:869. [PMID: 29163211 PMCID: PMC5672116 DOI: 10.3389/fphys.2017.00869] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 10/17/2017] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress is involved in the pathogenesis of a variety of inflammatory disorders. Apical periodontitis (AP) usually results in the formation of an osteolytic apical lesion (AL) caused by the immune response to endodontic infection. Reactive oxygen species (ROS) produced by phagocytic cells in response to bacterial challenge represent an important host defense mechanism, but disturbed redox balance results in tissue injury. This mini review focuses on the role of oxidative stress in the local and associated systemic events in chronic apical periodontitis. During endodontic infection, ligation of Toll-like receptors (TLRs) on phagocytes' surface triggers activation, phagocytosis, synthesis of ROS, activation of humoral and cellular responses, and production of inflammatory mediators, such as, cytokines and matrix metalloproteinases (MMPs). The increment in ROS perturbs the normal redox balance and shifts cells into a state of oxidative stress. ROS induce molecular damage and disturbed redox signaling, that result in the loss of bone homeostasis, increased pro-inflammatory mediators, and MMP overexpression and activation, leading to apical tissue breakdown. On the other hand, oxidative stress has been strongly involved in the pathogenesis of atherosclerosis, where a chronic inflammatory process develops in the arterial wall. Chronic AP is associated with an increased risk of cardiovascular diseases (CVD) and especially atherogenesis. The potential mechanisms linking these diseases are also discussed.
Collapse
Affiliation(s)
- Patricia Hernández-Ríos
- Department of Conservative Dentistry, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Pirkko J Pussinen
- Oral and Maxillofacial Diseases, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Rolando Vernal
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Dentistry Unit, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Marcela Hernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Dentistry Unit, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| |
Collapse
|
18
|
He N, Wang Y, Zhang C, Wang M, Wang Y, Zuo Q, Zhang Y, Li B. Wnt signaling pathway regulates differentiation of chicken embryonic stem cells into spermatogonial stem cells via Wnt5a. J Cell Biochem 2017; 119:1689-1701. [PMID: 28786525 DOI: 10.1002/jcb.26329] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/04/2017] [Indexed: 12/20/2022]
Abstract
In this study, we investigated the mechanism of signaling pathway-mediated differentiation of embryonic stem cells (ESCs) into spermatogonial stem cells (SSCs) in chicken. The Wnt signaling pathway was identified based on previous RNA Sequencing results and was proven a crucial signaling pathway that participates in the differentiation of ESCs into SSCs. In retinoic acid (RA) induction experiments in vitro, we found that Wnt signaling expression was inhibited by Wnt5a-shRNA, resulting in decreased expression of corresponding marker genes in SSCs, C-kit, Cvh, integrin α6 and integrin β1, but it was significantly promoted by RA treatment. Immunofluorescence assay showed that percentage of C-kit, Cvh, and integrin α6 and integrin β1-positive cells in RA treatment group and Wnt5a overexpression group was significantly higher than that in Wnt5a signaling interference group. Results of fluorescence-activated cell sorting analysis (FACS) also showed that proportion of germ-like cells was reduced by 14.3% (from 18.3% to 4.0%) at day 4 and 15.4% (from 18.6% to 3.2%) at day 12 after transfection, respectively. In experiments in vivo, shRNA-Wnt5a was stably expressed in fertilized chicken embryos and significantly reduced germ cell formation by 11.3% (from 21.7% to 10.4%) and 3.7% (6.4% from 10.1%). Results of quantitative PCR (qRT-PCR) and western blot assays showed that the expression of some specific germ cell marker genes, integrin α6 and integrin β1, was significantly suppressed following Wnt5a signaling interference in vivo. Taken together, our study suggests that Wnt signaling pathway could regulate positively the differentiation of chicken ESCs into SSCs through Wnt5a.
Collapse
Affiliation(s)
- Nana He
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Yilin Wang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Chen Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Man Wang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Yingjie Wang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Qisheng Zuo
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Yani Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| | - Bichun Li
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, YangZhou University, YangZhou, P. R. China
| |
Collapse
|
19
|
Marchev AS, Dimitrova PA, Burns AJ, Kostov RV, Dinkova-Kostova AT, Georgiev MI. Oxidative stress and chronic inflammation in osteoarthritis: can NRF2 counteract these partners in crime? Ann N Y Acad Sci 2017; 1401:114-135. [PMID: 28662306 DOI: 10.1111/nyas.13407] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/08/2017] [Accepted: 05/12/2017] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA) is an age-related joint degenerative disease associated with pain, joint deformity, and disability. The disease starts with cartilage damage but then progressively involves subchondral bone, causing an imbalance between osteoclast-driven bone resorption and osteoblast-driven remodeling. Here, we summarize the data for the role of oxidative stress and inflammation in OA pathology and discuss how these two processes are integrated during OA progression, as well as their contribution to abnormalities in cartilage/bone metabolism and integrity. At the cellular level, oxidative stress and inflammation are counteracted by transcription factor nuclear factor erythroid p45-related factor 2 (NRF2), and we describe the regulation of NRF2, highlighting its role in OA pathology. We also discuss the beneficial effect of some phytonutrients, including the therapeutic potential of NRF2 activation, in OA.
Collapse
Affiliation(s)
- Andrey S Marchev
- Group of Plant Cell Biotechnology and Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Plovdiv, Bulgaria
| | - Petya A Dimitrova
- Department of Immunology, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Andrew J Burns
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, UK
| | - Rumen V Kostov
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, UK
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, UK
- Departments of Medicine and Pharmacology and Molecular Sciences, Johns Hopkins University, School of Medicine, Baltimore, Maryland
| | - Milen I Georgiev
- Group of Plant Cell Biotechnology and Metabolomics, The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Plovdiv, Bulgaria
| |
Collapse
|
20
|
Cai Y, Zhu S, Yang W, Pan M, Wang C, Wu W. Downregulation of β-catenin blocks fibrosis via Wnt2 signaling in human keloid fibroblasts. Tumour Biol 2017; 39:1010428317707423. [PMID: 28656880 DOI: 10.1177/1010428317707423] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Keloid is a disorder of fibroproliferative diseases that occurs in wounds, characterized by an exaggerated response to injury. The key factor responsible for the disease process has not been identified. This study sought to elucidate the role of β-catenin in the regulation of keloid phenotypes and signaling. Expression of β-catenin in keloid and normal non-keloid samples was measured by real-time polymerase chain reaction. Knockdown of β-catenin was achieved by delivering small interfering RNA to target β-catenin. Cell proliferation, cell cycle progression, and apoptosis of keloid cells were measured by functional assays in vitro. The proteins related to keloid fibrosis were measured by Western blotting. β-catenin expression was significantly upregulated in keloid tissue samples compared with the normal non-keloid age-adjusted skin sample counterparts. Functionally, targeting β-catenin with lipofection-delivered small interfering RNA oligonucleotide inhibited the proliferation and cell cycle arrest in G0/G1 phase and increased apoptosis of fibroblast cells, accompanied by downregulation of Wnt2 and cyclin D1 as well as the phosphorylation level of glycogen synthase kinase 3 beta in the keloid fibrosis. Our study supports a crucial role of β-catenin in the regulation of fibroproliferation and extracellular matrix deposition. Targeting β-catenin using small interfering RNA oligonucleotide may be a promising approach for preventing excessive fibroproliferative development after wound healing and may lead to the development of novel strategies for restoring keloid diseases.
Collapse
Affiliation(s)
- Yumei Cai
- 1 Department of Pathology, Quanzhou Medical College, Quanzhou, China
| | - Shize Zhu
- 2 Department of Plastic Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Weiqun Yang
- 1 Department of Pathology, Quanzhou Medical College, Quanzhou, China
| | - Mingmeng Pan
- 2 Department of Plastic Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Chaoyang Wang
- 2 Department of Plastic Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Wenyi Wu
- 2 Department of Plastic Surgery, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| |
Collapse
|
21
|
Zhao J, Zhou H, Sun L, Yang B, Zhang L, Shi H, Zheng Y. Selection of suitable reference genes for quantitative real-time PCR in trabecular meshwork cells under oxidative stress. Free Radic Res 2017; 51:103-111. [PMID: 28090788 DOI: 10.1080/10715762.2017.1282612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jing Zhao
- Department of Ophthalmology, The Second Hospital of Jilin University, Jilin University, Changchun, PR China
- Department of Ophthalmology, China-Japan Union Hospital, Jilin University, Changchun, PR China
| | - HongYan Zhou
- Department of Ophthalmology, China-Japan Union Hospital, Jilin University, Changchun, PR China
| | - Lixia Sun
- Department of Ophthalmology, The Second Hospital of Jilin University, Jilin University, Changchun, PR China
| | - Ben Yang
- Department of Ophthalmology, China-Japan Union Hospital, Jilin University, Changchun, PR China
| | - Lin Zhang
- Department of Ophthalmology, China-Japan Union Hospital, Jilin University, Changchun, PR China
| | - Hongfeng Shi
- Department of Rehabilitation, China-Japan Union Hospital, Jilin University, Changchun, PR China
| | - Yajuan Zheng
- Department of Ophthalmology, The Second Hospital of Jilin University, Jilin University, Changchun, PR China
| |
Collapse
|
22
|
The crosstalk between Wnt/β-catenin signaling pathway with DNA damage response and oxidative stress: Implications in cancer therapy. DNA Repair (Amst) 2017; 51:14-19. [PMID: 28108274 DOI: 10.1016/j.dnarep.2017.01.003] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 01/09/2017] [Indexed: 01/01/2023]
Abstract
DNA repair is essential for maintaining genomic integrity in cells. The dependence of cancer cell survival on proper DNA repair provides an opportunity to treat defective tumors by DNA damaging agents. Not only Wnt signaling has important functions in controlling gene expression, as well as cell polarity, adhesion and behavior, it also highly interacts with DNA damage response (DDR) in different levels. Furthermore, oxidative stress, which is responsible for majority of DNA lesions, affects Wnt signaling in different ways. A better understanding of the cross-talk between these pathways and events could provide strategies for treatment of cancer cells with deficient DNA repair capacity. As such, we will give a brief overview of the importance of the DNA repair machinery, signaling mechanisms of Wnt/β-catenin pathway, and DDR. We will further review the interactions between Wnt signaling and DDR, and the impact of oxidative stress on Wnt signaling. Finally, Wnt signaling is discussed as a potential treatment strategy for cancer.
Collapse
|
23
|
Tao J, Abudoukelimu M, Ma YT, Yang YN, Li XM, Chen BD, Liu F, He CH, Li HY. Secreted frizzled related protein 1 protects H9C2 cells from hypoxia/re-oxygenation injury by blocking the Wnt signaling pathway. Lipids Health Dis 2016; 15:72. [PMID: 27048460 PMCID: PMC4822324 DOI: 10.1186/s12944-016-0240-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Accepted: 03/30/2016] [Indexed: 11/17/2022] Open
Abstract
Background In animal models, secreted frizzled related protein 1 (Sfrp1) inhibition of the Wnt signaling pathway is beneficial because Sfrp1 reduces myocardial apoptosis and prevents heart failure. The mechanisms mediating the cellular survival effect of Sfrp1 has not been completely elucidated. The present study was designed to investigate the possible protective actions of Sfrp1 on cardiac muscle cells using an in vitro model of ischemia/reperfusion, and to evaluate the possible involvement of the Wnt signaling pathway. Methods We used a recombinant AAV9 vector to deliver the Sfrp1 gene into H9C2 rat cardiomyoblasts and adopted an in vitro model of ischemia/reperfusion. Cell vitality was measured by CKK-8 and the trypan blue exclusion assay. Western blot was used to evaluate the expression of Dvl-1, β-catenin, c-Myc, Bax, and Bcl-2. Flow cytometry analysis of cardiomyocyte apoptosis was performed. Results We confirmed that Sfrp1 significantly increased cell viability (assayed by trypan blue and CKK-8) and decreased apoptosis (assayed by flow cytometry analysis and the Bax/Bcl-2 ratio). These effects were partly attributable to the ability of Sfrp1 to down-regulate Wnt signaling pathway (assayed by Western blot to evaluate the expression of Dvl-1, β-catenin, and c-Myc). Indeed, reactivation of the Wnt signaling pathway activity with the specific activator, Licl, reduced Sfrp1-induced cardioprotection during hypoxia and reoxygenation. Conclusions The present study demonstrated that Sfrp1 directly protected H9C2 cells from hypoxia and reoxygenation-induced reperfusion injury and apoptosis through inhibition of the Wnt signaling pathway, and added new mechanistic insight regarding the cardioprotective role of Sfrp1 on ischemic damage. Electronic supplementary material The online version of this article (doi:10.1186/s12944-016-0240-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jing Tao
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.,Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Mayila Abudoukelimu
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.,Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Yi-tong Ma
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China. .,Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China. .,Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.
| | - Yi-ning Yang
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Xiao-mei Li
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Bang-dang Chen
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Fen Liu
- Xinjiang Key Laboratory of Cardiovascular Disease Research, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Chun-hui He
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.,Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| | - Hua-yin Li
- Department of Cardiology, the First Affiliated Hospital of Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China.,Xinjiang Medical University, Li Yu Shan South Road 137, Urumqi, 830001, People's Republic of China
| |
Collapse
|