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xin D, Junwen Z, Jiacheng Z, Qiongyu X, Huanzong H, peng L, juan L. In vitro and in vivo study of concentrated growth factor (CGF) mediating macrophage polarization in bone defect repair. Regen Ther 2025; 29:474-483. [PMID: 40337617 PMCID: PMC12056952 DOI: 10.1016/j.reth.2025.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2025] [Revised: 04/07/2025] [Accepted: 04/17/2025] [Indexed: 05/09/2025] Open
Abstract
Concentrated growth factor (CGF) is widely applied in clinical practice, but whether it has bone promoting effects and its mechanism of action are still the focus of discussion. In this study, in vitro experiments demonstrate that CGF can promote the expression of Arg-1 in BMDM cells, facilitating their polarization towards the M2 macrophages and encouraging the secretion of IL-10 and VEGF-A. CGF modulates M1 macrophages by reducing the expression of iNOS, while enhancing Arg-1 expression, thereby converting them to M2 macrophages. This is accompanied by a decrease in the secretion of TNF- α and IL-1β, and an increase in the secretion of IL-10 and VEGF-A. Mechanistically, CGF promotes the phosphorylation of STAT3, which in turn induces M2 macrophage polarization, suggesting that the function of CGF-mediated macrophages may be associated with the STAT3 signaling pathway. Moreover, CGF-mediated macrophages were found to enhance osteoblast activity, increasing the expression of ALP, RUNX2, and BMP-2, and improving cell migration capabilities. In vivo experiments showed that CGF could early recruit M2 macrophages to the bone defect site, promoting the expression of bone formation-related proteins such as ALP and BMP-2, and accelerating bone tissue regeneration. In summary, our study demonstrates that CGF can induce bone repair and regeneration by promoting immune modulation and macrophage polarization.
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Affiliation(s)
- Deng xin
- Department of Stomatology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Zheng Junwen
- Department of Stomatology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Zou Jiacheng
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Xun Qiongyu
- Pingshan District Central Hospital of Shenzhen, Shenzhen, Guangdong, China
| | - He Huanzong
- Department of Stomatology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Li peng
- Department of Anesthesiology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Liao juan
- Department of Stomatology, The Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, China
- Department of Stomatology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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Zhou Q, Wen M, Zhang Y, Wang Z, Zhou G, Liang X. Endothelial cell-modified BMSC-GT/PCL nanofiber membrane sheet constructs promote bone tissue regeneration. Front Bioeng Biotechnol 2025; 13:1557279. [PMID: 40092373 PMCID: PMC11906688 DOI: 10.3389/fbioe.2025.1557279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2025] [Accepted: 02/11/2025] [Indexed: 03/19/2025] Open
Abstract
Introduction Bone defect repair remains a major challenge in modern medicine. Although bone marrow mesenchymal stem cells (BMSCs) possess multilineage differentiation potential, traditional BMSC constructs are often limited in clinical applications due to insufficient osteogenic differentiation efficiency and inadequate vascularization. Methods This study developed an innovative bone tissue engineering strategy by combining BMSCs with gelatin/polycaprolactone (GT/PCL) nanofiber membranes to form cell sheets, which were then modified with endothelial cells (ECs) on the surface. The sheets were subsequently rolled into three-dimensional scaffolds to systematically evaluate their osteogenic potential and underlying mechanisms. Resuilts Results showed that electrospun GT/PCL nanofiber membranes exhibited uniform fiber structure (diameter 200-500 nm), successfully mimicking the microstructure of natural extracellular matrix. In vitro experiments demonstrated that after 14 days of culture, EC modification significantly enhanced the osteogenic differentiation of BMSCs compared to unmodified controls, with approximately 3-fold increase in ALP expression (p < 0.05) and 2.5-fold increase in angiogenic factor VEGF expression (p < 0.01). Subcutaneous implantation in nude mice revealed superior bone formation capability of EC-modified constructs at both 4 and 8 weeks: micro-CT analysis showed bone density reaching 350 mg/cm3, bone surface area approaching 400 mm2, and bone volume fraction of approximately 20%, significantly higher than control groups (p < 0.0001). Immunohistochemical evaluation further confirmed more mature trabecular bone structure and richer vascular networks in EC-modified groups. Discussion Mechanistic studies revealed that EC modification promoted bone regeneration through three key pathways: optimization of local vascular microenvironment for improved nutrient supply, activation of intercellular synergistic signaling pathways, and reconstruction of physiological bone tissue microenvironment. This study not only validates the application value of this composite strategy in bone tissue engineering but also provides important theoretical basis for developing novel bone regeneration solutions.
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Affiliation(s)
- Qian Zhou
- Plastic Surgery Institute, Shandong Second Medical University, Weifang, Shandong, China
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengnan Wen
- Institutes of Health Central Plain, The Third Affiliated Hospital of Xinxiang Medical University, Clinical Medical Center of Tissue Engineering and Regeneration, Xinxiang Medical University, Xinxiang, China
| | - Yiwu Zhang
- Plastic Surgery Institute, Shandong Second Medical University, Weifang, Shandong, China
| | - Zhinan Wang
- Plastic Surgery Institute, Shandong Second Medical University, Weifang, Shandong, China
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoqin Liang
- Plastic Surgery Institute, Shandong Second Medical University, Weifang, Shandong, China
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Perepletchikova D, Kuchur P, Basovich L, Khvorova I, Lobov A, Azarkina K, Aksenov N, Bozhkova S, Karelkin V, Malashicheva A. Endothelial-mesenchymal crosstalk drives osteogenic differentiation of human osteoblasts through Notch signaling. Cell Commun Signal 2025; 23:100. [PMID: 39972367 PMCID: PMC11841332 DOI: 10.1186/s12964-025-02096-0] [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: 11/28/2024] [Accepted: 02/08/2025] [Indexed: 02/21/2025] Open
Abstract
BACKGROUND Angiogenesis and osteogenesis are closely interrelated. The interaction between endothelial and bone-forming cells, such as osteoblasts, is crucial for normal bone development and repair. Juxtacrine and paracrine mechanisms play key roles in cell differentiation towards the osteogenic direction, assuming the direct effect of endothelium on osteogenic differentiation. However, the mechanisms of this interplay have yet to be thoroughly studied. METHODS Isolated endothelial cells (EC) from human umbilical vein and human osteoblasts (OB) from the epiphysis of the femur or tibia were cultured in direct and indirect (separated by membrane) contact in vitro under the osteogenic differentiation conditions. Osteogenic differentiation was verified by RT-PCR, and alizarin red staining. Shotgun proteomics and RNA-sequencing were used to compare both EC and OB under different co-culture conditions to assess the mechanisms of EC-OB interplay. To verify the role of Notch signaling, experiments with Notch modulation in EC were performed by EC lentiviral transduction with further co-cultivation with OB. Additionally, the effect of Notch modulation in EC was assessed by RNA-sequencing. RESULTS EC have opposite effects on osteogenic differentiation depending on the co-culture conditions with OB. In direct contact, EC enhance osteogenic differentiation, but in indirect cultures, EC suppress it. Our proteotranscriptomic analysis revealed that the osteosuppressive effect is related to the action of paracrine factors secreted by EC, while the osteoinductive properties of EC are mediated by the Notch signaling pathway, which can be activated only upon a physical contact of EC with OB. Indeed, in the direct co-culture, the knockdown of Notch1 and Notch3 receptors in EC has an inhibitory effect on the OB osteogenic differentiation, whereas activation of Notch by intracellular domain of either Notch1 or Notch3 in EC has an inductive effect on the OB osteogenic differentiation. CONCLUSION The data indicate the dual role of the endothelium in regulating osteogenic differentiation and highlight the unique role of the Notch signaling pathway in inducing osteogenic differentiation during cell-to-cell interactions. The findings of the study emphasize the importance of intercellular communication in the regulation of osteoblast differentiation during bone development and maintenance.
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Affiliation(s)
| | | | | | | | | | | | | | - Svetlana Bozhkova
- Vreden National Medical Research Center of Traumatology and Orthopedics, Saint- Petersburg, Russia
| | - Vitaliy Karelkin
- Vreden National Medical Research Center of Traumatology and Orthopedics, Saint- Petersburg, Russia
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Li X, Huang L, Li S, Lao S, Yan N, Wu H, Yang X. Endodontic Microsurgery with the Aid of Dynamic Navigation System Using Minimally Invasive Incision Approach in Anatomically Complex Scenarios: A Case Series. J Endod 2024; 50:1777-1783. [PMID: 39389176 DOI: 10.1016/j.joen.2024.10.001] [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: 08/17/2024] [Revised: 10/01/2024] [Accepted: 10/01/2024] [Indexed: 10/12/2024]
Abstract
Endodontic microsurgery (EMS) is an alternative treatment option for previously treated teeth with persistent periapical disease, offering a favorable prognosis. However, it can be particularly challenging in anatomically complex cases, risking unintentional damage to adjacent critical structures. Dynamic navigation (DN), a computer-aided technique, facilitates precise presurgical planning and provides real-time guidance during operation. Integrating the DN technique into EMS procedures can enhance treatment accuracy and effectiveness. This report presents 4 cases involving a minimally invasive incision approach for DN-aided EMS in anatomically complex regions, all of which were completed without complications. After 3-12 months, patients presented asymptomatic, and radiographic examinations revealed complete healing or the periapical radiolucent area decreased in size. The DN technique contributed to reliably mitigating the risk of iatrogenic damage in complicated EMS scenarios. The minimally invasive incision approach not only provided sufficient visibility but also promoted favorable soft tissue healing, making it a valuable addition to surgical endodontics.
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Affiliation(s)
- Xiaoxing Li
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Lishan Huang
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Siyu Li
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Siying Lao
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Ningxin Yan
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Haitong Wu
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China
| | - Xuechao Yang
- Department of Endodontics, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction & Guangzhou Key Laboratory of Basic and Applied Research of Oral Regenerative Medicine, Guangzhou Medical University, Guangzhou, 510182, China.
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Adamska P, Kaczoruk-Wieremczuk M, Pylińska-Dąbrowska D, Stasiak M, Bartmański M, Zedler A, Studniarek M. Treatment of Oroantral Communication and Fistulas with the Use of Blood-Derived Platelet-Rich Preparations Rich in Growth Factors: A Systematic Review. Int J Mol Sci 2024; 25:11507. [PMID: 39519060 PMCID: PMC11546229 DOI: 10.3390/ijms252111507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2024] [Revised: 10/23/2024] [Accepted: 10/24/2024] [Indexed: 11/16/2024] Open
Abstract
The formation of an oroantral communication (OAC) or fistula (OAF) is a rare complication resulting from the presence of processes in the lateral parts of the maxilla or for iatrogenic reasons. The most common causes of OAC or OAF are tooth extraction with periapical lesions. The aims of this systematic review were to assess the use of platelet-derived preparations rich in growth factors in the treatment of OAC or OAF, to determine the success of treating the communication or fistula, as well as impact on postoperative complications and the course of healing. The study was performed following PRISMA guidelines (PROSPERO: CRD42024570758). The inclusion criteria were as follows: at least ten patients, the presence of oroantral communication or oroantral fistula, treatment with platelet-derived preparations rich in growth factors, and information regarding the response to treatment. In order to find relevant studies, international databases, including PubMed, Google Scholar, Web of Science Core Collection, MDPI, Wiley, and Cochrane Library were searched. The last search was performed on 31 August 2024. Seven articles were included in the systematic review. In total, platelet-derived preparations rich in growth factors were used in 164 patients. Only studies in which OAC was treated and with platelet-rich fibrin (PRF) met the inclusion criteria. Only PRF was used as the sole treatment method in three studies. When OAC is greater than 5 mm, platelet-derived preparations rich in growth factors should be considered adjuncts to treatment, not the sole treatment method. The success rate of OAC treatment was 90-100%. The use of blood products to close OAC may be an effective therapeutic alternative. Proper patient qualification and the use of an appropriate protocol are crucial. There is a need for future well-designed case-control or cohort studies as well as randomized controlled trials to provide the required level of evidence.
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Affiliation(s)
- Paulina Adamska
- Division of Oral Surgery, Faculty of Medicine, Medical University of Gdańsk, 7 Dębinki Street, 80-210 Gdańsk, Poland
| | - Magdalena Kaczoruk-Wieremczuk
- Individual Specialist Oral Surgery Practice Magdalena Kaczoruk-Wieremczuk, 41/31 Władysława Wysockiego Street, 17-100 Bielsk Podlaski, Poland
| | - Dorota Pylińska-Dąbrowska
- Department of Dental Prosthetics, Faculty of Medicine, Medical University of Gdańsk, 18 Orzeszkowej Street, 80-204 Gdańsk, Poland
| | - Marcin Stasiak
- Division of Orthodontics, Faculty of Medicine, Medical University of Gdańsk, Aleja Zwycięstwa 42c, 80-210 Gdańsk, Poland
| | - Michał Bartmański
- Institute of Manufacturing and Materials Technology, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233 Gdańsk, Poland
| | - Adam Zedler
- Division of Oral Surgery, Faculty of Medicine, Medical University of Gdańsk, 7 Dębinki Street, 80-210 Gdańsk, Poland
| | - Michał Studniarek
- Department of Radiology, Faculty of Medicine, Medical University of Gdańsk, 17 Smoluchowskiego Street, 80-210 Gdańsk, Poland
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Li T, Zhang X, Hu Y, Gao X, Yao X, Xu Z. Development of gelatin-methacryloyl composite carriers for bone morphogenetic Protein-2 delivery: A potential strategy for spinal fusion. J Biomater Appl 2024; 39:195-206. [PMID: 38877801 DOI: 10.1177/08853282241258302] [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] [Indexed: 06/16/2024]
Abstract
To reduce the risk of nonunion after spinal fusion surgery, the in situ transplantation of bone marrow mesenchymal stem cells (BMSCs) induced toward osteogenic differentiation by bone morphogenetic protein-2 (BMP2) has been proven effective. However, the current biological agents used for transplantation have limitations, such as a short half-life and low bioavailability. To address this, our study utilized a safe and effective gelatin-methacryloyl (GelMA) as a carrier for BMP2. In vitro, experiments were conducted to observe the ability of this composite vehicle to induce osteogenic differentiation of BMSCs. The results showed that the GelMA hydrogel, with its critical properties and controlled release performance of BMP2, exhibited a slow release of BMP2 over 30 days. Moreover, the GelMA hydrogel not only enhanced the proliferation activity of BMSCs but also significantly promoted their osteogenic differentiation ability, surpassing the BMP2 effects. To investigate the potential of the GelMA-BMP2 composite vehicle, a rabbit model was employed to explore its ability to induce in situ intervertebral fusion by BMSCs. Transplantation experiments in rabbits demonstrated the effective induction of intervertebral bone fusion by the GelMA-BMP2-BMSC composite vehicle. In conclusion, the GelMA-BMP2-BMSC composite vehicle shows promising prospects in preclinical translational therapy for spinal intervertebral fusion. It addresses the limitations of current biological agents and offers a controlled release of BMP2, enhancing the proliferation and osteogenic differentiation of BMSCs.
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Affiliation(s)
- Tao Li
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi, PR China
| | - Xiaobo Zhang
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi, PR China
| | - Yicun Hu
- Department of Orthopedics, Lanzhou University Second Hospital, Lanzhou, PR China
| | - Xidan Gao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi, PR China
| | - Xin Yao
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi, PR China
| | - Zhengwei Xu
- Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Shaanxi, PR China
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Li H, Zhang X, Ameer KA, Zhang X, Du W, Mei S, Li X. Clinical observation of concentrated growth factor (CGF) combined with iliac cancellous bone and composite bone material graft on postoperative osteogenesis and inflammation in the repair of extensive mandibular defects. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2023; 124:101472. [PMID: 37061040 DOI: 10.1016/j.jormas.2023.101472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 04/17/2023]
Abstract
PURPOSE To evaluate the effects of concentrated growth factor (CGF), combined with a mixture of iliac cancellous and composite bone materials, on the repair of extensive mandibular defects. PATIENTS AND METHODS This clinical trial involved patients with mandibular defects caused by large cystic lesions. The test group comprised 16 patients who underwent CGF combined with iliac cancellous bone and composite bone materials to repair extensive mandibular defects, whereas the control group comprised eight patients who underwent vascularised free fibula grafts for mandibular segmental defects. Postoperative exudatum was collected from patients on the 1st, 2nd, 3rd, and 4th days postoperatively, and osteogenic factor, including alkaline phosphatase (ALP), osteocalcin (BGP), and procollagen type I N-terminal propeptide (PINP), and inflammatory cytokines were performed. Additionally, regular cone beam computed tomography (CBCT) scans were conducted before and after surgery. RESULTS On postoperative days 1-4, the expression levels of ALP, BGP, and PINP were higher in the test group, while those of IL-1α, IL-1β, IL-6, IL-8, and TNF-α, which were identified as co-differentially expressing inflammatory cytokines, were all down-regulated in the exudatum of the test group. Regular CBCT radiological scans revealed a significant osteogenic effect in the test group. CONCLUSION The use of CGF combined with iliac cancellous bone and composite bone materials to repair extensive mandibular jaw defects facilitates bone formation and reductions in inflammation in the defect area in the short term, which deserves further research in clinical practice.
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Affiliation(s)
- Haiyang Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiaoyan Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Khan Anas Ameer
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiao Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Wenya Du
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Shuang Mei
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China
| | - Xiangjun Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University & Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, Shijiazhuang, 050017, China.
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Eichberger J, Froschhammer D, Schulz D, Scholz KJ, Federlin M, Ebensberger H, Reichert TE, Ettl T, Bauer RJ. BMSC-HNC Interaction: Exploring Effects on Bone Integrity and Head and Neck Cancer Progression. Int J Mol Sci 2023; 24:14417. [PMID: 37833873 PMCID: PMC10573008 DOI: 10.3390/ijms241914417] [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: 08/25/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
In recent research, the tumor microenvironment has been shown to attract mesenchymal stromal cells (MSCs), which is of particular interest due to its implications for cancer progression. The study focused on understanding the interaction between bone marrow-derived MSCs (BMSCs) and head and neck cancer (HNC) cells. This interaction was found to activate specific markers, notably the osteogenic marker alkaline phosphatase and the oncogene Runx2. These activations corresponded with the release of collagenase enzymes, MMP9 and MMP2. To gain insights into bone resorption related to this interaction, bovine bone slices were used, supporting the growth of "heterogeneous spheroids" that contained both BMSCs and HNC cells. Through scanning electron microscopy and energy-dispersive X-ray (EDX) analysis, it was observed that these mixed spheroids were linked to a notable increase in bone degradation and collagen fiber exposure, more so than spheroids of just BMSCs or HNC cells. Furthermore, the EDX results highlighted increased nitrogen content on bone surfaces with these mixed clusters. Overall, the findings underscore the significant role of BMSCs in tumor growth, emphasizing the need for further exploration in potential cancer treatment strategies.
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Affiliation(s)
- Jonas Eichberger
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
| | - Daniel Froschhammer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
- Department of Oral and Maxillofacial Surgery, Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Daniela Schulz
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
- Department of Oral and Maxillofacial Surgery, Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Konstantin J. Scholz
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, Germany; (K.J.S.); (M.F.); (H.E.)
| | - Marianne Federlin
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, Germany; (K.J.S.); (M.F.); (H.E.)
| | - Helga Ebensberger
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, 93053 Regensburg, Germany; (K.J.S.); (M.F.); (H.E.)
| | - Torsten E. Reichert
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
| | - Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
| | - Richard J. Bauer
- Department of Oral and Maxillofacial Surgery, University Hospital Regensburg, 93053 Regensburg, Germany; (J.E.); (D.F.); (D.S.); (T.E.R.); (T.E.)
- Department of Oral and Maxillofacial Surgery, Center for Medical Biotechnology, University Hospital Regensburg, 93053 Regensburg, Germany
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Yan L, Lin J, Yang L, He S, Tan X, Huang D. Clinical Effect Evaluation of Concentrated Growth Factor in Endodontic Microsurgery: A Cross-Sectional Study. J Endod 2023:S0099-2399(23)00246-7. [PMID: 37182792 DOI: 10.1016/j.joen.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/18/2023] [Accepted: 05/01/2023] [Indexed: 05/16/2023]
Abstract
INTRODUCTION Concentrated growth factor (CGF) is the third-generation platelet concentrate product. This study aimed to evaluate whether the use of CGF during endodontic microsurgery had a positive influence on surgical outcomes. METHODS Fifty-four patients who underwent endodontic microsurgery from January 2017 to November 2021 were enrolled. They were assigned to the CGF and the control group according to whether CGF was used during the surgery and followed up at 6, 12, and 18 months post-surgery. Preoperative classification of the cases and follow-up radiographic outcomes were based on Kim's classification and Molven's criteria respectively and evaluated by two calibrated endodontists. Student t-test and Chi-square test were used to assess the baseline of two groups. Rank sum test was used to determine whether CGF had an impact on the surgical outcome. RESULTS Thirty-one patients (41 periapical lesion sites) were included in the CGF group, and twenty-three patients (26 periapical lesion sites) were included in the control group. The overall success rate of endodontic microsurgery was above 90%. The baseline of the two groups had no difference (P<0.05). In the CGF group, the success rate was always 100% in three follow-ups, while the success rate was 84.2%, 92.8%, and 90% respectively in the control group. The success rate between the CGF group and the control group was statistically significant in all three follow-up points (P<0.05). CONCLUSIONS The application of CGF during endodontic microsurgery might have a positive influence on surgical outcomes, thus, its prognosis. However, higher-grade evidence is needed to demonstrate its role.
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Affiliation(s)
- Lixia Yan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Jie Lin
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Lei Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shuning He
- West China School of Public Health & West China Fourth Hospital, Sichuan University, Chengdu, 610041, China
| | - Xuelian Tan
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Dingming Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Conservative Dentistry and Endodontics, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
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Gao X, Hong G, Zhan W, Liu T, Yan S, Deng M, Tu C, Li P. DPA promotes hBMSCs osteogenic differentiation by miR-9-5p/ERK/ALP signaling pathway. Int J Med Sci 2022; 19:1879-1887. [PMID: 36438924 PMCID: PMC9682506 DOI: 10.7150/ijms.77729] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/10/2022] [Indexed: 01/25/2023] Open
Abstract
Docosahexaenoic acid (DHA) has been reported potentiate osteogenic differentiation, while Docosapentaenoic acid (DPA), another Omega-3 fatty acid, its contribution to the osteogenic differentiation of human bone-marrow-derived mesenchymal stromal cells (hBMSCs) is not entirely elucidated. The Alizarin Red S (ARS) staining and the expression of osteogenesis‑associated genes were analyzed during osteogenic induction by DPA. Then, bioinformatics analysis and dual luciferase reporter assays were investigated to confirm the interactions between miR-9-5p and alkaline phosphatase (ALP). miR-9-5p mimics / inhibitor were transfected to human hBMSCs and the osteogenic assay above was also performed. Furthermore, DPA significantly promoted the phosphorylation of ERK via miR-9-5p. PD98059, a highly specific and potent ERK1/2 inhibitor, inhibited the activation of ALP and partially reversed the role of DPA during osteogenic differentiation. These data indicated that DPA promoted osteogenic differentiation of hBMSCs potentially through miR-9-5p/ERK/ALP signaling pathway, providing a potentially useful therapeutic strategy for patients to improve bone loss.
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Affiliation(s)
- Xiang Gao
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
| | - Guanhao Hong
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Weiqiang Zhan
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Tianfeng Liu
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Shouquan Yan
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Scientific Research Department, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Mingzhu Deng
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Chenlin Tu
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
- Orthopedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Peng Li
- Stem Cell Research and Cellular Therapy Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, China
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Concentrated Growth Factors (CGF) Combined with Melatonin in Guided Bone Regeneration (GBR): A Case Report. Diagnostics (Basel) 2022; 12:diagnostics12051257. [PMID: 35626412 PMCID: PMC9141849 DOI: 10.3390/diagnostics12051257] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/06/2022] [Accepted: 05/16/2022] [Indexed: 12/23/2022] Open
Abstract
During implant restorative dentistry, common and crippling postoperative complications are pain and swelling of perioral soft tissues which engraving on patient quality of life. Concentrated growth factors (CGF), a novel generation of autologous platelet concentrate, and melatonin, endogenous indoleamine with also bone regenerative properties, may be useful for reconstruction of bony defects as well as in prosthetic and esthetic rehabilitation. We report a clinical case in which guided bone regeneration was performed combining CGF, melatonin and heterologous biomaterial. Great postoperative recovery without any complications was reported. In conclusion, in restorative dentistry the combined use of CGF and melatonin may have important roles in restoring bone defect, in improving implant osteointegration and, not less important, in preventing postoperative complications.
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