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Helal MH, Ali AN, Ghoraba SF, Aboushelib MN. Prefabricated CAD-CAM scaffolds for management of oro-antral communication: A case report and histological analysis. Clin Implant Dent Relat Res 2024; 26:258-265. [PMID: 38225873 DOI: 10.1111/cid.13300] [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: 09/21/2023] [Revised: 11/14/2023] [Accepted: 12/07/2023] [Indexed: 01/17/2024]
Abstract
INTRODUCTION Oro-control communication is one of the complications associated with dental extraction and oral surgeries. This case report presents a minimally invasive surgical approach for bone regeneration at the site of oro-antral communication utilizing a prefabricated computer-aided design and computer-aided manufacturing (CAD-CAM) allogenic bone block. METHODS A 20-year-old healthy female, nonsmoker, with a badly destructed upper right first molar was referred for dental implant placement after extraction. Cone beam computerized tomography images revealed the presence of a large bone defect associated with oro-antral communication with the maxillary sinus and insufficient bone for dental implant placement. A prefabricated CAD-CAM allogenic bone scaffold was fabricated. After surgical exposure, the scaffold was secured in place and covered with a non-resorbable membrane. A dental implant was placed after 5 months, and a trephining biopsy was processed for histological evaluation. RESULTS Closure of the oro-antral communication was clinically observed. The average width of the alveolar bone was 12 mm, and the average height was 11 mm. Histological analysis at 5-month intervals showed thin newly formed bone trabeculae encircling remnants of graft material surrounded by osteoid tissue. The newly formed bone percentages were 32 ± 18% and 28 ± 17% volume remained after the biodegradation of the scaffold. Specific immune-histochemical staining by anti-vascular epithelial growth factor expression index value was 32.06%. CONCLUSIONS A prefabricated CAD-CAM scaffold was successfully used to seal a large oro-antral communication and regenerate sufficient bone to place a dental implant.
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Affiliation(s)
- Mohamed H Helal
- Oral Medicine, Periodontology, Oral Diagnosis, and Radiology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Ahmed N Ali
- Department of Basic Medical and Dental Sciences, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
- Oral Pathology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Sahar F Ghoraba
- Oral Medicine, Periodontology, Oral Diagnosis, and Radiology Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - Moustafa N Aboushelib
- Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Qin X, Xi Y, Jiang Q, Chen C, Yang G. Type H vessels in osteogenesis, homeostasis, and related disorders. Differentiation 2023; 134:20-30. [PMID: 37774549 DOI: 10.1016/j.diff.2023.09.005] [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: 07/05/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/01/2023]
Abstract
The vascular system plays a crucial role in bone tissue. Angiogenic and osteogenic processes are coupled through a spatial-temporal connection. Recent studies have identified three types of capillaries in the skeletal system. Compared with type L and E vessels, type H vessels express high levels of CD31 and endomucin, and function to couple angiogenesis and osteogenesis. Endothelial cells in type H vessels interact with osteolineage cells (e.g., osteoblasts, osteoclasts, and osteocytes) through cytokines or signaling pathways to maintain bone growth and homeostasis. In imbalanced bone homeostases, such as osteoporosis and osteoarthritis, it may be a new therapeutic strategy to regulate the endothelial cell activity in type H vessels to repair the imbalance. Here, we reviewed the latest progress in relevant factors or signaling pathways in coupling angiogenesis and osteogenesis. This review would contribute to further understanding the role and mechanisms of type H vessels in coupling angiogenic and osteogenic processes. Furthermore, it will facilitate the development of therapeutic approaches for bone disorders by targeting type H vessels.
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Affiliation(s)
- Xiaoru Qin
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Yue Xi
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Qifeng Jiang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Chaozhen Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China
| | - Guoli Yang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center of Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310000, China.
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Tsai MH, Megat Abdul Wahab R, Zainal Ariffin SH, Azmi F, Yazid F. Enhanced Osteogenesis Potential of MG-63 Cells through Sustained Delivery of VEGF via Liposomal Hydrogel. Gels 2023; 9:562. [PMID: 37504441 PMCID: PMC10378863 DOI: 10.3390/gels9070562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/08/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023] Open
Abstract
The challenges of using VEGF to promote osteoblastic differentiation include a short half-life and a narrow therapeutic window. A carrier system combining hydrogel and liposomes may improve the therapeutic efficacy of VEGF for bone regeneration. This study aimed to investigate the effects of delivery of VEGF via liposomal hydrogel on the osteogenesis of MG-63 cells. Liposomal hydrogel scaffold was fabricated and then characterized in terms of the morphological and chemical properties using FESEM and FTIR. In 2.5D analysis, the MG-63 cells were cultured on liposomal hydrogel + VEGF as the test group. The osteogenic effects of VEGF were compared with the control groups, i.e., hydrogel without liposomes + VEGF, osteogenic medium (OM) supplemented with a bolus of VEGF, and OM without VEGF. Cell morphology, viability, and differentiation and mineralization potential were investigated using FESEM, MTT assay, ALP activity, and Alizarin red staining. The characterization of scaffold showed no significant differences in the morphological and chemical properties between hydrogel with and without liposomes (p > 0.05). The final 2.5D culture demonstrated that cell proliferation, differentiation, and mineralization were significantly enhanced in the liposomal hydrogel + VEGF group compared with the control groups (p < 0.05). In conclusion, liposomal hydrogel can be used to deliver VEGF in a sustained manner in order to enhance the osteogenesis of MG-63 cells.
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Affiliation(s)
- Milton Hongli Tsai
- Discipline of Orthodontics, Department of Family Oral Health, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Rohaya Megat Abdul Wahab
- Discipline of Orthodontics, Department of Family Oral Health, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Shahrul Hisham Zainal Ariffin
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
| | - Fazren Azmi
- Faculty of Pharmacy, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
| | - Farinawati Yazid
- Discipline of Pediatric Dentistry, Department of Family Oral Health, Faculty of Dentistry, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
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Chen J, Zhang D, Wu LP, Zhao M. Current Strategies for Engineered Vascular Grafts and Vascularized Tissue Engineering. Polymers (Basel) 2023; 15:polym15092015. [PMID: 37177162 PMCID: PMC10181238 DOI: 10.3390/polym15092015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/21/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Blood vessels not only transport oxygen and nutrients to each organ, but also play an important role in the regulation of tissue regeneration. Impaired or occluded vessels can result in ischemia, tissue necrosis, or even life-threatening events. Bioengineered vascular grafts have become a promising alternative treatment for damaged or occlusive vessels. Large-scale tubular grafts, which can match arteries, arterioles, and venules, as well as meso- and microscale vasculature to alleviate ischemia or prevascularized engineered tissues, have been developed. In this review, materials and techniques for engineering tubular scaffolds and vasculature at all levels are discussed. Examples of vascularized tissue engineering in bone, peripheral nerves, and the heart are also provided. Finally, the current challenges are discussed and the perspectives on future developments in biofunctional engineered vessels are delineated.
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Affiliation(s)
- Jun Chen
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Di Zhang
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Lin-Ping Wu
- Center for Chemical Biology and Drug Discovery, Laboratory of Computational Biomedicine, Guangzhou Institute of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China
| | - Ming Zhao
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
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Li H, Zhang P, Li D, Chen B, Li J, Wang T. The Expression Patterns of Exogenous Plant miRNAs in Chickens. Genes (Basel) 2023; 14:genes14030760. [PMID: 36981030 PMCID: PMC10048663 DOI: 10.3390/genes14030760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 03/30/2023] Open
Abstract
(1) Background: MicroRNAs (miRNAs) are involved in a variety of biological processes, such as cell proliferation, cell differentiation, and organ development. Recent studies have shown that plant miRNAs may enter the diet and play physiological and/or pathophysiological roles in human health and disease; however, little is known about plant miRNAs in chickens. (2) Methods: Here, we analyzed miRNA sequencing data, with the use of five Chinese native chicken breeds and six different tissues (heart, liver, spleen, lung, kidney, and leg muscle), and used Illumina sequencing to detect the expression of plant miRNAs in the pectoralis muscles at fourteen developmental stages of Tibetan chickens. (3) Results: The results showed that plant miRNAs are detectable in multiple tissues and organs in different chicken breeds. Surprisingly, we found that plant miRNAs, such as tae-miR2018, were detectable in free-range Tibetan chicken embryos at different stages. The results of gavage feeding experiments also showed that synthetic tae-miR2018 was detectable in caged Tibetan chickens after ingestion. The analysis of tae-miR2018 showed that its target genes were related to skeletal muscle organ development, regulation of mesodermal cell fate specification, growth factor activity, negative regulation of the cell cycle, and regulation of growth, indicating that exogenous miRNA may regulate the development of chicken embryos. Further cell cultures and exogenous miRNA uptake assay experiments showed that synthetic wheat miR2018 can be absorbed by chicken myoblasts. (4) Conclusions: Our study found that chickens can absorb and deposit plant miRNAs in various tissues and organs. The plant miRNAs detected in embryos may be involved in the development of chicken embryos.
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Affiliation(s)
- Hao Li
- College of Animal Science, Xichang University, Xichang 615013, China
| | - Pu Zhang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Diyan Li
- School of Pharmacy, Chengdu University, Chengdu 610106, China
| | - Binlong Chen
- College of Animal Science, Xichang University, Xichang 615013, China
| | - Jing Li
- College of Agricultural and Life Sciences, Kunming University, Kunming 650214, China
| | - Tao Wang
- School of Pharmacy, Chengdu University, Chengdu 610106, China
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Wang Y, Yang X, Li Q, Zhang Y, Chen L, Hong L, Xie Z, Yang S, Deng X, Cao M, Yi G, Fu M. Single-cell RNA sequencing reveals the Müller subtypes and inner blood-retinal barrier regulatory network in early diabetic retinopathy. Front Mol Neurosci 2022; 15:1048634. [PMID: 36533134 PMCID: PMC9754943 DOI: 10.3389/fnmol.2022.1048634] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/10/2022] [Indexed: 11/30/2023] Open
Abstract
As the basic pathological changes of diabetic retinopathy (DR), the destruction of the blood-retina barrier (BRB) and vascular leakage have attracted extensive attention. Without timely intervention, BRB damage will eventually lead to serious visual impairment. However, due to the delicate structure and complex function of the BRB, the mechanism underlying damage to the BRB in DR has not been fully clarified. Here, we used single-cell RNA sequencing (RNA-seq) technology to analyze 35,910 cells from the retina of healthy and streptozotocin (STZ)-induced diabetic rats, focusing on the degeneration of the main cells constituting the rat BRB in DR and the new definition of two subpopulations of Müller cells at the cell level, Ctxn3 +Müller and Ctxn3 -Müller cells. We analyzed the characteristics and significant differences between the two groups of Müller cells and emphasized the importance of the Ctxn3 +Müller subgroup in diseases. In endothelial cells, we found possible mechanisms of self-protection and adhesion and recruitment to pericytes. In addition, we constructed a communication network between endothelial cells, pericytes, and Müller subsets and clarified the complex regulatory relationship between cells. In summary, we constructed an atlas of the iBRB in the early stage of DR and elucidate the degeneration of its constituent cells and Müller cells and the regulatory relationship between them, providing a series of potential targets for the early treatment of DR.
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Affiliation(s)
- Yan Wang
- Department of Ophthalmology, South China Hospital of Shenzhen University, Shenzhen, China
| | - Xiongyi Yang
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Qiumo Li
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuxi Zhang
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Lin Chen
- Department of Anesthesiology, Shenzhen Hospital, Southern Medical University, Shenzhen, Guangdong, China
| | - Libing Hong
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhuohang Xie
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Siyu Yang
- Department of Ophthalmology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Xiaoqing Deng
- The Second Clinical School, Southern Medical University, Guangzhou, Guangdong, China
| | - Mingzhe Cao
- Department of Ophthalmology, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Guoguo Yi
- Department of Ophthalmology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Min Fu
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Mahapatra C, Kumar P, Paul MK, Kumar A. Angiogenic stimulation strategies in bone tissue regeneration. Tissue Cell 2022; 79:101908. [DOI: 10.1016/j.tice.2022.101908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/24/2022] [Accepted: 08/22/2022] [Indexed: 11/28/2022]
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Cytokine co-stimulation effect on odontogenic differentiation of stem cells. Clin Oral Investig 2022; 26:4789-4796. [PMID: 35292845 DOI: 10.1007/s00784-022-04443-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 03/04/2022] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The study aims to evaluate the effect of bone morphogenetic protein-2 (BMP-2) and transforming growth factor-beta 1 (TGF-β1) co-stimulation on odontogenic differentiation of human dental pulp stem cells (hDPSCs). MATERIALS AND METHODS The viability/proliferation of hDPSCs treated with BMP-2 (group B), TGF-β1 (group T), or BMP-2/TGF-β1 (group BT) were evaluated. The experiments on odontogenic differentiation were done for 14 days. The following subgroups were added to investigate the effect of co-stimulation with different timing: subgroup B1, TGF-β1 co-stimulation in the first week; subgroup B2, TGF-β1 co-stimulation in the second week; subgroup T1, BMP-2 co-stimulation in the first week; and subgroup T2, BMP-2 co-stimulation in the second week. The mineralization was assessed using alizarin red staining. The expression of following genes was assessed using quantitative real-time polymerase chain reaction: dentin sialophosphoprotein (DSPP), dentin matrix protein-1 (DMP1), osteopontin (OPN), and alkaline phosphatase. RESULTS All groups showed viability similar to the control group (P > .05). The greater mineralization was detected in B groups on day 14. The expressions of DSPP, DMP-1, and OPN increased on day 14 (P < .05). In the combination groups, the higher expressions of DSPP and DMP-1 were observed in subgroups B1 and B2 than groups B and T (P < .05). CONCLUSIONS BMP-2 was the key in odontogenic differentiation of hDPSCs, which was further enhanced by co-stimulation with TGF-β1. Continuous stimulation with TGFβ-1 did not improve the differentiation of hDPSCs. CLINICAL RELEVANCE Combined use of the BMP-2 and TGFβ-1 at the specific sequence can provide a tissue engineering approach for the future guided dentin regeneration.
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Valanti EK, Dalakoura-Karagkouni K, Fotakis P, Vafiadaki E, Mantzoros CS, Chroni A, Zannis V, Kardassis D, Sanoudou D. Reconstituted HDL-apoE3 promotes endothelial cell migration through ID1 and its downstream kinases ERK1/2, AKT and p38 MAPK. Metabolism 2022; 127:154954. [PMID: 34875308 DOI: 10.1016/j.metabol.2021.154954] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/15/2021] [Accepted: 11/30/2021] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Atherosclerotic Coronary Artery Disease (ASCAD) is the leading cause of mortality worldwide. Novel therapeutic approaches aiming to improve the atheroprotective functions of High Density Lipoprotein (HDL) include the use of reconstituted HDL forms containing human apolipoprotein A-I (rHDL-apoA-I). Given the strong atheroprotective properties of apolipoprotein E3 (apoE3), rHDL-apoE3 may represent an attractive yet largely unexplored therapeutic agent. OBJECTIVE To evaluate the atheroprotective potential of rHDL-apoE3 starting with the unbiased assessment of global transcriptome effects and focusing on endothelial cell (EC) migration as a critical process in re-endothelialization and atherosclerosis prevention. The cellular, molecular and functional effects of rHDL-apoE3 on EC migration-associated pathways were assessed, as well as the potential translatability of these findings in vivo. METHODS Human Aortic ECs (HAEC) were treated with rHDL-apoE3 and total RNA was analyzed by whole genome microarrays. Expression and phosphorylation changes of key EC migration-associated molecules were validated by qRT-PCR and Western blot analysis in primary HAEC, Human Coronary Artery ECs (HCAEC) and the human EA.hy926 EC line. The capacity of rHDL-apoE3 to stimulate EC migration was assessed by wound healing and transwell migration assays. The contribution of MEK1/2, PI3K and the transcription factor ID1 in rHDL-apoE3-induced EC migration and activation of EC migration-related effectors was assessed using specific inhibitors (PD98059: MEK1/2, LY294002: PI3K) and siRNA-mediated gene silencing, respectively. The capacity of rHDL-apoE3 to improve vascular permeability and hypercholesterolemia in vivo was tested in a mouse model of hypercholesterolemia (apoE KO mice) using Evans Blue assays and lipid/lipoprotein analysis in the serum, respectively. RESULTS rHDL-apoE3 induced significant expression changes in 198 genes of HAEC mainly involved in re-endothelialization and atherosclerosis-associated functions. The most pronounced effect was observed for EC migration, with 42/198 genes being involved in the following EC migration-related pathways: 1) MEK/ERK, 2) PI3K/AKT/eNOS-MMP2/9, 3) RHO-GTPases, 4) integrin. rHDL-apoE3 induced changes in 24 representative transcripts of these pathways in HAEC, increasing the expression of their key proteins PIK3CG, EFNB2, ID1 and FLT1 in HCAEC and EA.hy926 cells. In addition, rHDL-apoE3 stimulated migration of HCAEC and EA.hy926 cells, and the migration was markedly attenuated in the presence of PD98059 or LY294002. rHDL-apoE3 also increased the phosphorylation of ERK1/2, AKT, eNOS and p38 MAPK in these cells, while PD98059 and LY294002 inhibited rHDL-apoE3-induced phosphorylation of ERK1/2, AKT and p38 MAPK, respectively. LY had no effect on rHDL-apoE3-mediated eNOS phosphorylation. ID1 siRNA markedly decreased EA.hy926 cell migration by inhibiting rHDL-apoE3-triggered ERK1/2 and AKT phosphorylation. Finally, administration of a single dose of rHDL-apoE3 in apoE KO mice markedly improved vascular permeability as demonstrated by the reduced concentration of Evans Blue dye in tissues such as the stomach, the tongue and the urinary bladder and ameliorated hypercholesterolemia. CONCLUSIONS rHDL-apoE3 significantly enhanced EC migration in vitro, predominantly via overexpression of ID1 and subsequent activation of MEK1/2 and PI3K, and their downstream targets ERK1/2, AKT and p38 MAPK, respectively, and improved vascular permeability in vivo. These novel insights into the rHDL-apoE3 functions suggest a potential clinical use to promote re-endothelialization and retard development of atherosclerosis.
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Affiliation(s)
- Eftaxia-Konstantina Valanti
- 4th Department of Internal Medicine, Clinical Genomics and Pharmacogenomics Unit, 'Attikon' Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Molecular Biology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | - Katerina Dalakoura-Karagkouni
- Laboratory of Biochemistry, University of Crete Medical School, Heraklion, Greece; Division of Gene Regulation and Genomics, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology of Hellas, Heraklion, Greece
| | | | - Elizabeth Vafiadaki
- Molecular Biology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece
| | | | - Angeliki Chroni
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Athens, Greece
| | - Vassilis Zannis
- Molecular Genetics, Boston University Medical School, Boston, USA
| | - Dimitris Kardassis
- Laboratory of Biochemistry, University of Crete Medical School, Heraklion, Greece; Division of Gene Regulation and Genomics, Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology of Hellas, Heraklion, Greece
| | - Despina Sanoudou
- 4th Department of Internal Medicine, Clinical Genomics and Pharmacogenomics Unit, 'Attikon' Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece; Molecular Biology Division, Biomedical Research Foundation of the Academy of Athens, Athens, Greece; Center for New Biotechnologies and Precision Medicine, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Kazakova G, Safronova T, Golubchikov D, Shevtsova O, Rau JV. Resorbable Mg 2+-Containing Phosphates for Bone Tissue Repair. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4857. [PMID: 34500951 PMCID: PMC8432688 DOI: 10.3390/ma14174857] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 08/24/2021] [Accepted: 08/24/2021] [Indexed: 02/07/2023]
Abstract
Materials based on Mg2+-containing phosphates are gaining great relevance in the field of bone tissue repair via regenerative medicine methods. Magnesium ions, together with condensed phosphate ions, play substantial roles in the process of bone remodeling, affecting the early stage of bone regeneration through active participation in the process of osteosynthesis. In this paper we provide a comprehensive overview of the usage of biomaterials based on magnesium phosphate and magnesium calcium phosphate in bone reconstruction. We consider the role of magnesium ions in angiogenesis, which is an important process associated with osteogenesis. Finally, we summarize the biological properties of calcium magnesium phosphates for regeneration of bone.
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Affiliation(s)
- Gilyana Kazakova
- Department of Materials Science, Lomonosov Moscow State University, Laboratory Building B, 1-73 Leninskiye Gory, Moscow 119991, Russia;
- Department of Chemistry, Lomonosov Moscow State University, GSP-1, 1-3 Leninskiye Gory, Moscow 119991, Russia;
| | - Tatiana Safronova
- Department of Materials Science, Lomonosov Moscow State University, Laboratory Building B, 1-73 Leninskiye Gory, Moscow 119991, Russia;
- Department of Chemistry, Lomonosov Moscow State University, GSP-1, 1-3 Leninskiye Gory, Moscow 119991, Russia;
| | - Daniil Golubchikov
- Department of Materials Science, Lomonosov Moscow State University, Laboratory Building B, 1-73 Leninskiye Gory, Moscow 119991, Russia;
| | - Olga Shevtsova
- Department of Chemistry, Lomonosov Moscow State University, GSP-1, 1-3 Leninskiye Gory, Moscow 119991, Russia;
| | - Julietta V. Rau
- Istituto di Struttura della Materia (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Roma, Italy;
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, Sechenov First Moscow State Medical University, Trubetskaya 8, Build. 2, Moscow 119991, Russia
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Lee CS, Kim SH. Anti-inflammatory and Anti-osteoporotic Potential of Lactobacillus plantarum A41 and L. fermentum SRK414 as Probiotics. Probiotics Antimicrob Proteins 2021; 12:623-634. [PMID: 31372901 DOI: 10.1007/s12602-019-09577-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This study involves an investigation on the probiotic properties of lactic acid bacteria and their potential applications in an in vitro model of lipopolysaccharide (LPS)-stimulated inflammation and dexamethasone-induced osteoporosis. Nine strains were pre-screened from 485 lactic acid bacteria based on their survival at a low pH and in a solution containing bile salts. All candidates were capable of surviving in an environment with low pH and with bile salts and could successfully colonize the intestine. Furthermore, their functional properties, such as anti-oxidation and anti-inflammation, were evaluated. Of the nine probiotic candidates, Lactobacillus plantarum A41 and L. fermentum SRK414 exhibited the highest anti-oxidative capacity. Moreover, only L. plantarum A41 and L. fermentum SRK414 could increase gut barrier function by upregulating the mRNA expression of tight junction proteins and inhibit the expression of inflammatory mediators induced by LPS-stimulated inflammation. Interestingly, these two strains were also capable of regulating several bone metabolism-related markers playing a role in bone homeostasis and osteoblast differentiation. In brief, L. plantarum A41 and L. fermentum SRK414 exhibited high probiotic potential and potentially impact immune-related bone health by modulating pro-inflammatory cytokines and bone metabolism-related markers.
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Affiliation(s)
- Chul Sang Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.,Institute of Life Science and Natural Resources, Korea University, Seoul, 02841, Republic of Korea
| | - Sae Hun Kim
- College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea. .,Institute of Life Science and Natural Resources, Korea University, Seoul, 02841, Republic of Korea.
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Huo Q, Li Z, Chen S, Wang J, Li J, Xie N. VWCE as a potential biomarker associated with immune infiltrates in breast cancer. Cancer Cell Int 2021; 21:272. [PMID: 34020650 PMCID: PMC8140436 DOI: 10.1186/s12935-021-01955-3] [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: 10/09/2020] [Accepted: 04/27/2021] [Indexed: 11/10/2022] Open
Abstract
PURPOSE Von Willebrand Factor C and EGF Domains (VWCE) is an important gene that regulates cell adhesion, migration, and interaction. However, the correlation between VWCE expression and immune infiltrating in breast cancer remain unclear. In this study, we investigated the correlation between VWCE expression and immune infiltration levels in breast cancer. METHODS The expression of VWCE was analyzed by the tumor immune estimation resource (TIMER) and DriverDB databases. Furthermore, genes co-expressed with VWCE and gene ontology (GO) enrichment analysis were investigated by the STRING and Enrichr web servers. Also, we performed the single nucleotide variation (SNV), copy number variation (CNV), and pathway activity analysis through GSCALite. Subsequently, the relationship between VWCE expression and tumor immunity was analyzed by TIMER and TISIDB databases, and further verified the results using Quantitative Real-Time PCR (RT-PCR), Western blotting, and immunohistochemistry. RESULTS The results showed that the expression of VWCE mRNA in breast cancer tissue was significantly lower than that in normal tissues. We found that the expression level of VWCE was associated with subtypes, estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor-2 (HER2) status of breast cancer patients, but there was no significant difference in the expression of VWCE was found in age and nodal status. Further analyses indicated that VWCE was correlated with the activation or inhibition of multiple oncogenic pathways. Additionally, VWCE expression was negatively correlated with the expression of STAT1 (Th1 marker, r = - 0.12, p = 6e-05), but positively correlated with the expression of MS4A4A (r = 0.28, p = 0). These results suggested that the expression of VWCE was correlated with immune infiltration levels of Th1 and M2 macrophage in breast cancer. CONCLUSIONS In our study, VWCE expression was associated with a better prognosis and was immune infiltration in breast cancer. These findings demonstrate that VWCE is a potential prognostic biomarker and correlated with tumor immune cell infiltration, and maybe a promising therapeutic target in breast cancer.
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Affiliation(s)
- Qin Huo
- Biobank, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen, 518035, China
| | - Zhenwei Li
- Biobank, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen, 518035, China
| | - Siqi Chen
- Biobank, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen, 518035, China
| | - Juan Wang
- Department of Clinical Medicine , University of South China , Hengyang , 421001 , China
| | - Jiaying Li
- Department of Clinical Medicine , University of South China , Hengyang , 421001 , China
| | - Ni Xie
- Biobank, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University , Shenzhen, 518035, China.
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13
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Combined Delivery of Two Different Bioactive Factors Incorporated in Hydroxyapatite Microcarrier for Bone Regeneration. Tissue Eng Regen Med 2020; 17:607-624. [PMID: 32803541 DOI: 10.1007/s13770-020-00257-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/03/2020] [Accepted: 03/24/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The delivery of growth factors using a carrier system presents a promising and innovative tool in tissue engineering and dentistry today. Two of the foremost bioactive factors, bone morphogenetic protein-2 and vascular endothelial growth factor (VEGF), are widely applied using a ceramic scaffold. The aim of this study was to determine the use of hydroxyapatite microcarrier (MC) for dual delivery of osteogenic and angiogenic factors to accelerate hard tissue regeneration during the regenerative process. METHODS Two MCs of different sizes were fabricated by emulsification of gelatin and alpha-tricalcium phosphate (α-TCP). The experimental group was divided based on the combination of MC size and growth factors. For investigating the in vitro properties, rat mesenchymal stem cells (rMSCs) were harvested from bone marrow of the femur and tibia. For in vivo experiments, MC with/without growth factors was applied into the standardized, 5-mm diameter defects, which were made bilaterally on the parietal bone of the rat. The animals were allowed to heal for 8 weeks, and samples were harvested and analyzed by micro-computed tomography and histology. RESULTS Improved proliferation of rat mesenchymal stem cells was observed with VEGF loaded MC. For osteogenic differentiation, dual growth factors delivered by MC showed higher osteogenic gene expression, alkaline phosphatse production and calcium deposition. The in vivo results revealed statistically significant increase in new bone formation when dual growth factors were delivered by MC. Dual growth factors administered on a calcium phosphate matrix showed significantly enhanced osteogenic potential. CONCLUSION We propose this system has potential clinical utility in providing solutions for craniofacial bone defects, with the added benefit of early availability.
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14
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Liu K, Meng CX, Lv ZY, Zhang YJ, Li J, Li KY, Liu FZ, Zhang B, Cui FZ. Enhancement of BMP-2 and VEGF carried by mineralized collagen for mandibular bone regeneration. Regen Biomater 2020; 7:435-440. [PMID: 32793388 PMCID: PMC7414995 DOI: 10.1093/rb/rbaa022] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 03/26/2020] [Accepted: 04/12/2020] [Indexed: 12/11/2022] Open
Abstract
Repairing damage in the craniofacial skeleton is challenging. Craniofacial bones require intramembranous ossification to generate tissue-engineered bone grafts via angiogenesis and osteogenesis. Here, we designed a mineralized collagen delivery system for BMP-2 and vascular endothelial growth factor (VEGF) for implantation into animal models of mandibular defects. BMP-2/VEGF were mixed with mineralized collagen which was implanted into the rabbit mandibular. Animals were divided into (i) controls with no growth factors; (ii) BMP-2 alone; or (iii) BMP-2 and VEGF combined. CT and hisomputed tomography and histological staining were performed to assess bone repair. New bone formation was higher in BMP-2 and BMP-2-VEGF groups in which angiogenesis and osteogenesis were enhanced. This highlights the use of mineralized collagen with BMP-2/VEGF as an effective alternative for bone regeneration.
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Affiliation(s)
- Kun Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, Jinan, Shandong 250012, P. R. China.,Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Chun-Xiu Meng
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, Jinan, Shandong 250012, P. R. China.,Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Zhao-Yong Lv
- Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Yu-Jue Zhang
- Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Jun Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, Jinan, Shandong 250012, P. R. China.,Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Ke-Yi Li
- Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Feng-Zhen Liu
- Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China.,College of Materials Science and Engineering of Liaocheng University, Liaocheng 252000, P. R. China
| | - Bin Zhang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, Jinan, Shandong 250012, P. R. China.,Liaocheng People's Hospital, Medical College of Liaocheng University, Liaocheng 252000, P. R. China
| | - Fu-Zhai Cui
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P. R. China
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15
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Caddy JC, Luoma LM, Berry FB. FOXC1 negatively regulates BMP‐SMAD activity and Id1 expression during osteoblast differentiation. J Cell Biochem 2020; 121:3266-3277. [DOI: 10.1002/jcb.29595] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 12/09/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Jordan C. Caddy
- Department of Medical GeneticsUniversity of Alberta Edmonton Alberta Canada
| | - Leiah M. Luoma
- Department of Medical GeneticsUniversity of Alberta Edmonton Alberta Canada
- Department of SurgeryUniversity of Alberta Edmonton Alberta Canada
| | - Fred B. Berry
- Department of Medical GeneticsUniversity of Alberta Edmonton Alberta Canada
- Department of SurgeryUniversity of Alberta Edmonton Alberta Canada
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16
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Li J, Wang T, Li C, Wang Z, Wang P, Zheng L. Sema3A and HIF1α co-overexpressed iPSC-MSCs/HA scaffold facilitates the repair of calvarial defect in a mouse model. J Cell Physiol 2020; 235:6754-6766. [PMID: 32012286 DOI: 10.1002/jcp.29569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 01/09/2020] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem/stromal cells (MSCs) play an important role in bone tissue engineering because MSCs possess multilineage potential of differentiation to mesenchymal tissues. Semaphorin 3A (Sema3A) and hypoxia-inducible factor-1α (HIF1α) are proved as important regulatory factors for osteogenesis and angiogenesis. The aim of this study was to investigate the effects of Sema3A and HIF1α co-overexpression on the osteogenesis and angiogenesis in induced pluripotent stem cell-derived mesenchymal stem cells (iPSC-MSCs). Importantly, we assessed the potential osteogenic effectiveness of Sema3A and HIF1α co-overexpressed iPSC-MSCs seeded on hydroxyapatite (HA) scaffold in a mouse calvarial defect model. The overexpression for Sema3A, HIF1α, or Sema3A-HIF1α fusion in iPSC-MSCs was performed by separately infecting with conducted lentiviral vector. We determined the cell proliferation, the expressions of osteogenic, and endothelial markers of iPSC-MSCs cultured in osteogenic or endothelial induction medium in vitro. A mouse model calvarial defect was created and implanted with the Empty implant, HA scaffold alone, HA scaffold combined with iPSC-MSCs that infected with negative control or Sema3A-HIF1α fusion for 8 weeks in vivo. The results showed that Sema3A and HIF1α co-overexpression reversed the reduced cell proliferation that reduced by Sema3A overexpression alone. Importantly, the co-overexpression significantly increased the expressions of osteogenic and angiogenic related-genes compared with negative control after induction. Moreover, the Sema3A-HIF1α co-overexpressed iPSC-MSCs seeded on HA scaffold boosted the new bone and collagen fiber formation and facilitated repair of calvarial defect in a mouse model, which might have the potential application for bone defect reconstruction.
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Affiliation(s)
- Jingyi Li
- Department of Medical Cosmetology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tingting Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chong Li
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhifang Wang
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Peng Wang
- Department of Comprehensive Surgery, Peking University Third Hospital, Beijing, China
| | - Lili Zheng
- Department of Endocrinology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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17
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Wang Z, Sun J, Li Y, Chen C, Xu Y, Zang X, Li L, Meng K. Experimental study of the synergistic effect and network regulation mechanisms of an applied combination of BMP-2, VEGF, and TGF-β1 on osteogenic differentiation. J Cell Biochem 2019; 121:2394-2405. [PMID: 31646676 DOI: 10.1002/jcb.29462] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 10/10/2019] [Indexed: 02/03/2023]
Abstract
The study aimed to explore the osteogenic effect induced by the combined use of bone morphogenetic protein-2 (BMP-2), vascular endothelial growth factor (VEGF), and transforming growth factor-β1 (TGF-β1), attain the best combination for osteogenic quality and efficiency, and explore the network regulation mechanisms of induced osteogenesis. MC3T3-E1 cells were cultured in vitro, and BMP-2, VEGF, and TGF β1 were added to osteogenic induction mediums in different combinations to conduct experiments. At 7 and 14 days, the alkaline phosphatase (ALP) and Alizarin Red S (ARS) staining of the applied BMP-2 and VEGF combination were deeper and the quantitative analysis were higher than those of the other groups. After optimizing the time-effect relationship of the combined application, with BMP-2, VEGF, and TGF-β1 adding in the early stage and BMP-2 and VEGF adding in the late, the ALP and ARS staining of these groups were deeper and the quantitative analyses were meaningfully higher than the BMP-2 and VEGF combination group at 7 and 14 days. The expression of the RUNX2 gene and the Smad1 signaling pathway in the optimized combination group was also significantly higher. The results demonstrate that the combination of BMP-2, VEGF, and TGF-β1 applied according to the time-effect relationship can significantly promote osteogenic differentiation mainly through the classical BMP-receptor-Smad signal pathway.
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Affiliation(s)
- Zhihao Wang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Jian Sun
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, Shandong, China.,Shandong Provincial Key Laboratory of Digital Medicine and Computer-assisted Surgery, Qingdao, Shandong, China
| | - Yali Li
- Department of Operating Room, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Chen Chen
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Yaoxiang Xu
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiaolong Zang
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Li Li
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Kun Meng
- Department of Oral & Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
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18
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BMP2 secretion from hepatocellular carcinoma cell HepG2 enhances angiogenesis and tumor growth in endothelial cells via activation of the MAPK/p38 signaling pathway. Stem Cell Res Ther 2019; 10:237. [PMID: 31387619 PMCID: PMC6683571 DOI: 10.1186/s13287-019-1301-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/31/2019] [Accepted: 06/10/2019] [Indexed: 02/07/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most common tumors globally, with varying prevalence based on endemic risk factors. Bone morphogenetic protein (BMP) exhibits a broad spectrum of biological activities in various tissues including angiogenesis. Here, this study aimed to investigate the mechanism of BMP2 in HCC by mediating the mitogen-activated protein kinase (MAPK)/p38 signaling pathway. Methods BMP2 expression was quantified in HCC and adjacent tissues. BMP2 gain- and loss-of-function experiments were conducted by infection with lentivirus over-expressing BMP2 or expressing shRNA against BMP2. The angiogenesis was evaluated with HepG2 cells co-cultured with ECV304 cells. SB-239063 was applied to inhibit the activation of the MAPK/p38 signaling pathway so as to identify the significance of this pathway in HCC progression. Finally, in vivo experiments were conducted to identify the role of BMP2 and the MAPK/p38 signaling pathway in tumor growth and angiogenesis. Results BMP2 was highly expressed in HCC. Over-expression of BMP2 was found to accelerate cell proliferation, migration, invasion, microvascular density, and angiogenesis and decrease cell apoptosis in vitro and in vivo. BMP2 silencing exhibited inhibitory effects on HCC cell invasion and angiogenesis. The co-culture system illustrated that HepG2 cells secreted BMP2 in ECV304, and silenced BMP2 in HepG2 cells resulted in the inactivation of the MAPK/p38 signaling pathway, thus suppressing cancer progression, tumor growth, and angiogenesis in HCC. Conclusion Taken together, the key findings of this study propose that silencing of BMP2 inhibits angiogenesis and tumor growth in HCC, highlighting BMP2 silencing as a potential strategy for the treatment of HCC.
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Sharma S, Xue Y, Xing Z, Yassin MA, Sun Y, Lorens JB, Finne-Wistrand A, Sapkota D, Mustafa K. Adenoviral mediated mono delivery of BMP2 is superior to the combined delivery of BMP2 and VEGFA in bone regeneration in a critical-sized rat calvarial bone defect. Bone Rep 2019; 10:100205. [PMID: 31193299 PMCID: PMC6525280 DOI: 10.1016/j.bonr.2019.100205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 03/11/2019] [Accepted: 04/10/2019] [Indexed: 01/30/2023] Open
Abstract
Apart from osteogenesis, neovascularization of the defect area is an important determinant for successful bone healing. Accordingly, several studies have employed the combined delivery of VEGFA and BMP2 for bone regeneration. Nevertheless, the outcomes of these studies are highly variable. The aim of our study was to compare the effectiveness of adenoviral mediated delivery of BMP2 alone and in combination with VEGFA in rat bone marrow stromal cells (rBMSC) seeded on a poly(LLA-co-CL) scaffold in angiogenesis and osteogenesis using a critical-sized rat calvarial defect model. Both mono delivery of BMP2 and the combined delivery of a lower ratio of VEGFA and BMP2 (1:4) led to up-regulation of osteogenic genes (Alpl and Runx2) and increased calcium deposition in vitro, compared with the GFP control. Micro computed tomography (microCT) analysis of the rat calvarial defect at 8 weeks showed that the mono delivery of BMP2 (43.37 ± 3.55% defect closure) was the most effective in healing the bone defect, followed by the combined delivery of BMP2 and VEGFA (27.86 ± 2.89%) and other controls. Histological and molecular analyses supported the microCT findings. Analysis of the angiogenesis, however, showed that both mono delivery of BMP2 and combined delivery of BMP2 and VEGFA had similar angiogenic effect in the calvarial defects. Examination of the key genes related to host response against the adenoviral vectors showed that the current model system was not associated with adverse immune response. Overall, the results show that the mono delivery of BMP2 was superior to the combined delivery of BMP2 and VEGFA in healing the critical-sized rat calvarial bone defect. These findings underscore the importance of appropriate growth factor combination for the successful outcome in bone regeneration.
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Affiliation(s)
- Sunita Sharma
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Ying Xue
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Zhe Xing
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Mohammed A Yassin
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Yang Sun
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - James B Lorens
- Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Anna Finne-Wistrand
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Dipak Sapkota
- Department of Oral Biology, Faculty of Dentistry, 0316 Oslo, Norway
| | - Kamal Mustafa
- Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Bergen, Norway
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20
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Yao Y, Bi Z, Wu R, Zhao Y, Liu Y, Liu Q, Wang Y, Wang X. METTL3 inhibits BMSC adipogenic differentiation by targeting the JAK1/STAT5/C/EBPβ pathway via an m 6A-YTHDF2-dependent manner. FASEB J 2019; 33:7529-7544. [PMID: 30865855 DOI: 10.1096/fj.201802644r] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Bone marrow stem cells (BMSCs) are multipotent stem cells that can regenerate mesenchymal tissues, such as adipose tissue, bone, and muscle. Recent studies have shown that N6-methyladenosine (m6A) methylation, one of the most prevalent epigenetic modifications, is involved in the development process. However, whether it plays roles in BMSC differentiation is still elusive. Here, we found that the deletion of m6A "writer" protein methyltransferase-like (METTL)3 in porcine BMSCs (pBMSCs) could promote adipogenesis and janus kinase (JAK)1 protein expression via an m6A-dependent way. Knockdown of METTL3 decreased mRNA m6A levels of JAK1, leading to enhanced YTH m6A RNA binding protein 2 (YTHDF2)-dependent JAK1 mRNA stability. We further demonstrated that JAK1 activated signal transducer and activator of transcription (STAT) 5 through regulation of its phosphorylation to bind to the promoter of CCAAT/enhancer binding protein (C/EBP) β, which could ultimately lead to a modulated adipogenic process. Collectively, our results reveal an orchestrated network linking the m6A methylation and JAK1/STAT5/C/EBPβ pathway in pBMSCs adipogenic differentiation. Our findings provide novel insights into the underlying molecular mechanisms of m6A modification in the regulation of BMSCs differentiating into adipocytes, which may pave a way to develop more effective therapeutic strategies in stem cell regenerative medicine and the treatment of obesity.-Yao, Y., Bi, Z., Wu, R., Zhao, Y., Liu, Y., Liu, Q., Wang, Y., Wang, X. METTL3 inhibits BMSC adipogenic differentiation by targeting the JAK1/STAT5/C/EBPβ pathway via an m6A-YTHDF2-dependent manner.
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Affiliation(s)
- Yongxi Yao
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Zhen Bi
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Ruifan Wu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yuanling Zhao
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Youhua Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Qing Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Yizhen Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Sciences in Eastern China, Ministry of Agriculture, Hangzhou, China
| | - Xinxia Wang
- College of Animal Sciences, Zhejiang University, Hangzhou, China.,Key Laboratory of Animal Nutrition and Feed Sciences in Eastern China, Ministry of Agriculture, Hangzhou, China
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Zhang Y, Chen H, Zhang T, Zan Y, Ni T, Cao Y, Wang J, Liu M, Pei R. Injectable hydrogels from enzyme-catalyzed crosslinking as BMSCs-laden scaffold for bone repair and regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 96:841-849. [PMID: 30606598 DOI: 10.1016/j.msec.2018.12.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 10/30/2018] [Accepted: 12/05/2018] [Indexed: 12/20/2022]
Abstract
Bone-marrow-derived mesenchymal stem cells possess great potential for tissue engineering and regenerative medicine. In the work, an injectable BMSCs-laden hydrogel system was formed by enzyme-catalyzed crosslinking of hyaluronic acid-tyramine and chondroitin sulfate-tyramine in the presence of hydrogen peroxide and horseradish peroxidase, which was used as a 3D scaffold to explore the behavior of the mesenchymal stem cells. Afterward, the gelation rate, mechanical properties, as well as the degradation process of the scaffold were well characterized and optimized. Furthermore, bone morphogenetic protein-2 was encapsulated in the scaffold, which was used to improve the osteogenic properties. The results illustrated that such a BMSCs-laden hydrogel not only offered a proper microenvironment for the adhesion, proliferation and differentiation of mesenchymal stem cells in vitro, but also promoted bone regeneration in vivo. Therefore, this injectable BMSCs-laden hydrogel may serve as an efficient 3D scaffold for bone repair and regeneration.
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Affiliation(s)
- Yajie Zhang
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China
| | - Hong Chen
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Tingting Zhang
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Yue Zan
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Pharmacy, Xi'an Jiaotong University, Xi'an 710061, China
| | - Tianyu Ni
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Yi Cao
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jine Wang
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Min Liu
- Institute for Interdisciplinary Research, Jianghan University, Wuhan 430056, China.
| | - Renjun Pei
- CAS Key Laboratory for Nano-Bio Interface, Division of Nanobiomedicine, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; School of Nano Technology and Nano Bionics, University of Science and Technology of China, Hefei 230026, China.
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22
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Wang X, Wang C, Gou W, Xu X, Wang Y, Wang A, Xu W, Guo Q, Liu S, Lu Q, Meng H, Yuan M, Peng J, Lu S. The optimal time to inject bone mesenchymal stem cells for fracture healing in a murine model. Stem Cell Res Ther 2018; 9:272. [PMID: 30359311 PMCID: PMC6202840 DOI: 10.1186/s13287-018-1034-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 09/27/2018] [Accepted: 10/01/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Bone marrow is an important source of stem cells, which can promote bone fracture healing. METHODS We investigated the optimal time to inject bone marrow mesenchymal stem cells (BMSCs) in a C57 murine unilateral, transverse, femur fracture model. BMSCs transfected with red fluorescent protein (RFP-BMSCs) were injected via the tail vein on day 1, 7, or 14 post-fracture. AMD3100 (inhibitor of stromal cell-derived factor 1 [SDF-1]) was also injected before RFP-BMSCs in one group for comparison; a control group received saline injections. RFP-BMSC migration and fracture healing were evaluated by in vivo fluorescence assay. Micro-CT was performed and mechanical testing and histological analysis. Chemokine levels were evaluated by quantitative real-time PCR and western blotting. RESULTS Following injection on day 7 post-fracture, RFP-BMSCs more frequently homed to the fracture site and remained for a longer duration. Bone volume and bone mineral density were increased when BMSCs were injected on day 7 post-fracture (P < 0.05). The mechanical properties of fractured femurs were improved following day-7 BMSC injection. Histology confirmed that BMSC injection improved the formation of new bones. CONCLUSIONS Chemokines that induce BMSC migration were highly expressed, and protein levels of osteogenesis-related factors were increased. Seven days after fracture may be the optimal time for injection of BMSCs to promote fracture healing. Additionally, the SDF-1/CXCR4 pathway may play an important role in fracture healing following BMSC injection.
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Affiliation(s)
- Xin Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Cheng Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Wenlong Gou
- Department of Orthopaedics, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xiaolong Xu
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University, Xi’an, China
| | - Yu Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Aiyuan Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Wenjing Xu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Quanyi Guo
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Shuyun Liu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Qiang Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Haoye Meng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Mei Yuan
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Jiang Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Shibi Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
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Chen C, Zhu C, Hu X, Yu Q, Zheng Q, Tao S, Fan L. α-hemihydrate calcium sulfate/octacalcium phosphate combined with sodium hyaluronate promotes bone marrow-derived mesenchymal stem cell osteogenesis in vitro and in vivo. Drug Des Devel Ther 2018; 12:3269-3287. [PMID: 30323560 PMCID: PMC6173180 DOI: 10.2147/dddt.s173289] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
PURPOSE The aims of this research were to combine α-hemihydrate calcium sulfate/octacalcium phosphate (α-CSH/OCP) with sodium hyaluronate (SH) or SH sulfate (SHS) to determine whether these composites can be used as a new type of bone repair material. This study may provide a theoretical basis and new ideas for the construction of active bone repair materials and their clinical application. METHODS In this study, we combined α-CSH/OCP with SH or SHS. Scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), thermogravimetric analysis (TGA), and the wettability test were performed, and porosity, setting time, in vitro degradation, and the mechanical properties of these composite materials were analyzed to evaluate the ultrastructural and physicochemical properties. We evaluated the histocompatibility of these composites by MTT assay, hemolysis, acute toxicity, and pyrogenic and intracutaneous stimulation tests. In addition, the osteogenic differentiation ability of these materials was detected in vitro using Western blot analysis and in vivo using an animal model of bone defect. RESULTS The α-CSH/OCP/SH composite had a compressive strength of 13.72 MPa, a porous rate of 27.45%, and the 28-day degradation rate of 64%. The MTT assay results showed that the relative proliferation rates of the α-CSH/OCP/SH group were greater than 90%. The results of the α-CSH/OCP/SH composite in the hemolysis, acute toxicity, pyrogenic, and intracutaneous stimulation tests were within the normal range. Western blot analysis indicated that the expression of bone extracellular matrix (ECM) proteins was notably upregulated and always higher in the α-CSH/OCP/SH group than in the other groups. XRD of the rabbit radius-defect model indicated that bone healing in the area implanted with α-CSH/OCP/SH was excellent approximately 9 weeks after repair. CONCLUSION α-CSH/OCP/SH has very good biocompatibility and exhibits clear advantages in the induction of bone regeneration and self-repair, and this compound shows promise in the field of bone tissue engineering.
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Affiliation(s)
- Changshun Chen
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China,
| | - Chen Zhu
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, Hubei, China,
| | - Xiang Hu
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China,
| | - Qiuli Yu
- School of Health Sciences, Wuhan University, Wuhan, Hubei, China
| | - Qianjin Zheng
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China,
| | - Shengxiang Tao
- Department of Orthopedics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China,
| | - Lihong Fan
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan, Hubei, China,
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Lü L, Deegan A, Musa F, Xu T, Yang Y. The effects of biomimetically conjugated VEGF on osteogenesis and angiogenesis of MSCs (human and rat) and HUVECs co-culture models. Colloids Surf B Biointerfaces 2018; 167:550-559. [PMID: 29730577 DOI: 10.1016/j.colsurfb.2018.04.060] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/09/2018] [Accepted: 04/29/2018] [Indexed: 10/17/2022]
Abstract
The purpose of this work was to investigate if the biomimetically conjugated VEGF and HUVECs co-culture could modulate the osteogenic and angiogenic differentiation of MSCs derived from rat and human bone marrow (rMSCs and hMSCs). After treated by ammonia plasma, Poly(lactic-co-glycolic acid) (PLGA) electrospun nanofibers were immobilized with VEGF through heparin to fulfil the sustained release. The proliferation capacity of rMSCs and hMSCs on neat PLGA nanofibers (NF) and VEGF immobilized NF (NF-VEGF) surfaces were assessed by CCK-8 and compared when MSCs were mono-cultured and co-cultured with HUVECs. The effect of VEGF and HUVECs co-culturing on osteogenic and angiogenic differentiation of rMSCs and hMSCs were investigated by calcium deposits and CD31 expression on NF and NF-VEGF surfaces. The results indicated that VEGF has been biomimetically immobilized onto PLGA nanofibers surface and kept sustained release successfully. The CD31 staining results showed that both VEGF and HUVECs co-culture could enhance the angiogenesis of rMSCs and hMSCs. However, the proliferation and osteogenic differentiation of MSCs when cultured with VEGF and HUVECs showed a species dependent response. Taken together, VEGF immobilization and co-culture with HUVECs promoted angiogenesis of MSCs, indicating a good strategy for vascularization in bone tissue engineering.
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Affiliation(s)
- Lanxin Lü
- Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou, 221002, China; Institute for Science and Technology in Medicine, School of Medicine, Keele University, Stoke-on-Trent, ST4 7QB, UK
| | - Anthony Deegan
- Institute for Science and Technology in Medicine, School of Medicine, Keele University, Stoke-on-Trent, ST4 7QB, UK
| | - Faiza Musa
- Institute for Science and Technology in Medicine, School of Medicine, Keele University, Stoke-on-Trent, ST4 7QB, UK
| | - Tie Xu
- Emergency Center of the Affiliated Hospital of Xuzhou Medical University, Institute of Emergency Rescue Medicine, Xuzhou Medical University, Xuzhou, 221002, China.
| | - Ying Yang
- Institute for Science and Technology in Medicine, School of Medicine, Keele University, Stoke-on-Trent, ST4 7QB, UK.
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Zhang C, Meng C, Guan D, Ma F. BMP2 and VEGF165 transfection to bone marrow stromal stem cells regulate osteogenic potential in vitro. Medicine (Baltimore) 2018; 97:e9787. [PMID: 29384874 PMCID: PMC5805446 DOI: 10.1097/md.0000000000009787] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
An exogenous supply of bone morphogenetic protein 2 (BMP2) and vascular endothelial growth factors 165 (VEGF165) will synergize to promote bone regeneration in vivo. The aim of this study was to confirm the role of VEGF165 on the osteogenesis potential of bone mesenchymal stem cells (BMSCs) transduced by adenovirus vector containing BMP2 gene in vitro.Rabbit BMSCs were isolated and transfected with various adenovirus vectors: Ad-BMP2-VEGF165 (BMP2+VEGF165 group), Ad-BMP2 (BMP2 group), Ad-VEGF165 (VEGF165 group), and Ad-green fluorescent protein (GFP group). The multiplicity of infection was detected by GFP expression. Expression of BMP2 and VEGF165 was detected by Western blot and ELISA, and the osteogenic biological activity of BMP2 and VEGF165 by osteogenic assay. Meanwhile, the osteogenic biological activity of BMP2 and VEGF165 was evaluated by detection of Col I (collagen type I), OC (osteocalcin), and ALP (alkaline phosphatase) activity using OC staining, ALP activity assay, and real-time PCR assay.Expression of target genes and proteins reached peak values at 5 days and then gradually declined. The OC staining, ALP activity, and real-time PCR assay of ColI, OC, and ALP were all increased in cells transfected with Ad-BMP2-VEGF165, Ad-BMP2, Ad-VEGF165, and Ad-GFP. However, the osteogenic biological activity in cells transfected with Ad-BMP2 was higher compared to cells transfected with other vectors after transfection at 14 and 21 days. We also found that BMP2 +VEGF165 group showed more osteogenic activity effect than the VEGF165 or control group. Furthermore, osteogenic assays in VEGF165 showed that a slightly lower osteogenic effect when compared to controls at 21 days.VEGF165 might be a potent inhibitor of BMSCs differentiation into osteoblasts. The strategies to use BMP2 and VEGF165 in bone regeneration and the molecular mechanism of their interaction require further investigation.
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Affiliation(s)
- Cong Zhang
- Department of Spine Surgery, Zhongda Hospital, Medical School of Southeast University, Nanjing, Jiangsu
- Department of Orthopedics, Affiliated Hospital of Jining Medical University, Guhuai Road, Jining, Shandong
| | - Chunyang Meng
- Department of Orthopedics, Affiliated Hospital of Jining Medical University, Guhuai Road, Jining, Shandong
| | - Dafan Guan
- Department of Orthopedics, Ankang Central Hospital, Ankang, Shanxi, China
| | - Fengyu Ma
- Department of Orthopedics, Affiliated Hospital of Jining Medical University, Guhuai Road, Jining, Shandong
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Grosso A, Burger MG, Lunger A, Schaefer DJ, Banfi A, Di Maggio N. It Takes Two to Tango: Coupling of Angiogenesis and Osteogenesis for Bone Regeneration. Front Bioeng Biotechnol 2017; 5:68. [PMID: 29164110 PMCID: PMC5675838 DOI: 10.3389/fbioe.2017.00068] [Citation(s) in RCA: 247] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 10/16/2017] [Indexed: 12/29/2022] Open
Abstract
Bone regeneration is a complex process requiring highly orchestrated interactions between different cells and signals to form new mineralized tissue. Blood vessels serve as a structural template, around which bone development takes place, and also bring together the key elements for bone homeostasis into the osteogenic microenvironment, including minerals, growth factors and osteogenic progenitor cells. Vascular endothelial growth factor (VEGF) is the master regulator of vascular growth and it is required for effective coupling of angiogenesis and osteogenesis during both skeletal development and postnatal bone repair. Here, we will review the current state of knowledge on the molecular cross-talk between angiogenesis and osteogenesis. In particular, we will focus on the role of VEGF in coupling these two processes and how VEGF dose can control the outcome, addressing in particular: (1) the direct influence of VEGF on osteogenic differentiation of mesenchymal progenitors; (2) the angiocrine functions of endothelium to regulate osteoprogenitors; (3) the role of immune cells, e.g., myeloid cells and osteoclast precursors, recruited by VEGF to the osteogenic microenvironment. Finally, we will discuss emerging strategies, based on the current biological understanding, to ensure rapid vascularization and efficient bone formation in regenerative medicine.
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Affiliation(s)
- Andrea Grosso
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland
| | - Maximilian G Burger
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital of Basel, Basel, Switzerland
| | - Alexander Lunger
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital of Basel, Basel, Switzerland
| | - Dirk J Schaefer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital of Basel, Basel, Switzerland
| | - Andrea Banfi
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland
| | - Nunzia Di Maggio
- Department of Biomedicine, University Hospital, University of Basel, Basel, Switzerland
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Bae WJ, Yi JK, Park J, Kang SK, Jang JH, Kim EC. Lysyl oxidase-mediated VEGF-induced differentiation and angiogenesis in human dental pulp cells. Int Endod J 2017; 51:335-346. [PMID: 28568134 DOI: 10.1111/iej.12796] [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] [Received: 02/16/2017] [Accepted: 05/26/2017] [Indexed: 11/26/2022]
Abstract
AIM To investigate the effects of recombinant human vascular endothelial growth factor (rhVEGF) on odontoblastic differentiation, in vitro angiogenesis, and expression and activity of lysyl oxidase (LOX) in human dental pulp cells (HDPCs), compared with rhFGF-2. To identify the underlying molecular mechanisms, the study focused on whether LOX was responsible for the actions of rhVEGF. METHODOLOGY Recombinant human vascular endothelial growth factor (rhVEGF) was constructed using the pBAD-HisA plasmid in Escherichia coli. HDPCs were treated with 1-50 μg mL-1 rhVEGF for 14 days. Alkaline phosphatase (ALP) activity was measured, and the formation of calcified nodules was assessed using alizarin red staining after the induction of odontogenic differentiation of HDPCs. The expression level of the odontogenic differentiation markers was detected by reverse transcription polymerase chain reaction. Signal pathways were assessed by Western blot and immunocytochemistry. The data were analysed by anova with Bonferroni's test (α = 0.05). RESULTS Recombinant human vascular endothelial growth factor significantly increased cell growth (P < 0.05), ALP activity (P < 0.05) and mineralization nodule formation and upregulated the mRNA expression levels of the osteogenic/odontogenic markers that were lower with rhFGF-2. rhVEGF significantly increased amine oxidase activity (P < 0.05) and upregulated LOX and LOXL mRNA expression in HDPCs. Additionally, rhVEGF dose-dependently upregulated angiogenic gene mRNAs and capillary tube formation to a greater degree than rhFGF-2. Inhibition of LOX using β-aminopropionitrile (BAPN) and LOX or LOXL gene silencing by RNA interference attenuated rhVEGF-induced growth, ALP activity, mineralization, the expression of marker mRNAs and in vitro angiogenesis. Furthermore, treatment with rhVEGF resulted in phosphorylation of Akt, ERK, JNK and p38, and activation of NF-κB, which was inhibited by LOX or LOXL silencing and BAPN. CONCLUSION Recombinant human vascular endothelial growth factor promoted cell growth, odontogenic potential and in vitro angiogenesis via modulation of LOX expression. These results support the concept that rhVEGF may offer therapeutic benefits in regenerative endodontics.
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Affiliation(s)
- W-J Bae
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - J-K Yi
- Department of Conservative Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - J Park
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - S-K Kang
- Department of Oral Medicine, School of Dentistry, Kyung Hee University, Seoul, Korea
| | - J-H Jang
- Department of Biochemistry, School of Medicine, Inha University, Incheon, Korea
| | - E-C Kim
- Department of Oral and Maxillofacial Pathology, School of Dentistry, Kyung Hee University, Seoul, Korea
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Combined Effects of Vascular Endothelial Growth Factor and Bone Morphogenetic Protein 2 on Odonto/Osteogenic Differentiation of Human Dental Pulp Stem Cells In Vitro. J Endod 2017; 43:930-935. [PMID: 28457634 DOI: 10.1016/j.joen.2017.01.036] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 01/21/2017] [Accepted: 01/25/2017] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The purpose of this study was to investigate whether combined and concerted delivery of vascular endothelial growth factor (VEGF) and bone morphogenetic protein 2 (BMP-2) enhances odonto/osteogenic differentiation of human dental pulp stem cells (DPSCs) in vitro. METHODS Various concentrations of VEGF and/or BMP-2 with or without the presence of odonto/osteogenic medium (OM) were added into DPSC cultures for 21 days. The mineral formation in cultures was evaluated using alizarin red stain (ARS). Optimal concentrations of VEGF and BMP-2 were codelivered to DPSCs for total of 21 days with the following experimental groups: (1) group 1: OM only, (2) group 2: OM + VEGF, (3) group 3: OM + BMP-2, and (4) group 4: OM + VEGF + BMP-2 (subgroup 4a: VEGF present the first 7 days, 4b: BMP-2 present the last 14 days, and 4c, both present for 21 days). Cultures were then subjected to quantitative ARS analysis or harvested for quantitative polymerase chain reaction analysis for the expression of core-binding factor alpha 1 (CBFA1), alkaline phosphatase (ALP), and dentin matrix protein 1 (DMP-1). RESULTS No mineral formation was detected by ARS when VEGF and/or BMP-2 were used without OM. OM + VEGF, but not OM + BMP-2, formed more mineralization than OM (P < .05). In the codelivery groups, the highest mineralization was observed in OM + VEGF and subgroup 4a compared with OM or the other groups (P < .05). Quantitative polymerase chain reaction analysis showed that CBFA1, ALP, and DMP-1 levels were higher in groups 2, 3, and 4a compared with 4b and 4c (P < .05). CBFA1 expressed higher in groups 2, 3, and 4a compared with OM (P < .05). For ALP expression, only subgroup 4a expressed higher than OM (P < .05). No difference was detected between groups 2 and 3 (P > .05) in the expression of the 3 genes. CONCLUSIONS VEGF addition in the early phase rather than a continuous presence of both VEGF and BMP-2 enhances odonto/osteogenic differentiation of DPSCs.
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Hu K, Olsen BR. The roles of vascular endothelial growth factor in bone repair and regeneration. Bone 2016; 91:30-8. [PMID: 27353702 PMCID: PMC4996701 DOI: 10.1016/j.bone.2016.06.013] [Citation(s) in RCA: 346] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/22/2016] [Accepted: 06/23/2016] [Indexed: 02/08/2023]
Abstract
Vascular endothelial growth factor-A (VEGF) is one of the most important growth factors for regulation of vascular development and angiogenesis. Since bone is a highly vascularized organ and angiogenesis plays an important role in osteogenesis, VEGF also influences skeletal development and postnatal bone repair. Compromised bone repair and regeneration in many patients can be attributed to impaired blood supply; thus, modulation of VEGF levels in bones represents a potential strategy for treating compromised bone repair and improving bone regeneration. This review (i) summarizes the roles of VEGF at different stages of bone repair, including the phases of inflammation, endochondral ossification, intramembranous ossification during callus formation and bone remodeling; (ii) discusses different mechanisms underlying the effects of VEGF on osteoblast function, including paracrine, autocrine and intracrine signaling during bone repair; (iii) summarizes the role of VEGF in the bone regenerative procedure, distraction osteogenesis; and (iv) reviews evidence for the effects of VEGF in the context of repair and regeneration techniques involving the use of scaffolds, skeletal stem cells and growth factors.
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Affiliation(s)
- Kai Hu
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA.
| | - Bjorn R Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA.
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Li B, Jha RK, Qi YJ, Ni QB, Wang H, Chen B, Chen LB. Early cellular responses of BMSCs genetically modified with bFGF/BMP2 co-cultured with ligament fibroblasts in a three-dimensional model in vitro. Int J Mol Med 2016; 38:1578-1586. [PMID: 28025991 DOI: 10.3892/ijmm.2016.2752] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 09/07/2016] [Indexed: 11/05/2022] Open
Abstract
Currently, a number of strategies including the implantation of bone marrow-derived mesenchymal stem cells (BMSCs) and growth factors have been developed to regenerate the tendon-to-bone interface after performing anterior cruciate ligament reconstruction. However, the mechanisms behind the interactions of the implanted BMSCs and tendon cells remain to be elucidated. The aim of this study was to evaluate the early cellular responses of BMSCs genetically modified with basic growth factor growth factor (bFGF)/bone morphogenic protein 2 (BMP2) and ligament fibroblasts in a three-dimensional co-culture model. BMSCs and ligament fibroblasts were both isolated from male Wistar rats. The BMSCs were then transfected with an adenoviral vector carrying bFGF or BMP2. The transfected BMSCs and ligament fibroblasts both encapsulated in alginate beads were co-cultured for 6 days in three-dimensional model. On days 0, 3 and 6, cell proliferation was assayed. On day 6, the expression of several tendon-bone related markers was evaluated. In the co-culture system, bFGF and BMP2 were highly expressed at the mRNA and protein level. During the process, bFGF significantly promoted cell proliferation, as well as the expression of scleraxis (SCX) and collagen (COL) type Ⅰ (COL1) in the BMSCs; however, it markedly decreased the expression of phenotype markers in the ligament fibroblasts, including COL1 and COL3. BMP2 markedly increased the expression of alkaline phosphatase and osteocalcin in the BMSCs and ligament fibroblasts, whereas it had no obvious effect on cell proliferation and collagen synthesis in the ligament fibroblasts. The combination of bFGF and BMP2 resulted in the similarly enhanced proliferation of BMSCs and ligament fibroblasts as observed with bFGF alone; however, this combination more potently promoted osteogenic differentiation than did BMP2 alone. The findings of our study demonstrate the superiority of the combined use of growth factors in inducing osteogenic differentiation and provide a theoretical foundation for the regeneration of the tendon-to-bone interface.
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Affiliation(s)
- Bin Li
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
| | - Ramesh Kumar Jha
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
| | - Yong-Jian Qi
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
| | - Qu-Bo Ni
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
| | - Hui Wang
- Department of Pharmacology, Basic Medical School, Wuhan University, Wuhan, P.R. China
| | - Biao Chen
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
| | - Liao-Bin Chen
- Department of Orthopaedic Surgery, Zhongnan Hospital, Wuhan University, Wuhan, P.R. China
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Shao W, He J, Han Q, Sang F, Wang Q, Chen L, Cui S, Ding B. A biomimetic multilayer nanofiber fabric fabricated by electrospinning and textile technology from polylactic acid and Tussah silk fibroin as a scaffold for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:599-610. [PMID: 27287159 DOI: 10.1016/j.msec.2016.05.081] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/15/2016] [Accepted: 05/18/2016] [Indexed: 11/28/2022]
Abstract
To engineer bone tissue, a scaffold with good biological properties should be provided to approximate the hierarchical structure of collagen fibrils in natural bone. In this study, we fabricated a novel scaffold consisting of multilayer nanofiber fabrics (MLNFFs) by weaving nanofiber yarns of polylactic acid (PLA) and Tussah silk fibroin (TSF). The yarns were fabricated by electrospinning, and we found that spinnability, as well as the mechanical properties of the resulting scaffold, was determined by the ratio between polylactic acid and Tussah silk fibroin. In particular, a 9:1 mixture can be spun continuously into nanofiber yarns with narrow diameter distribution and good mechanical properties. Accordingly, woven scaffolds based on this mixture had excellent mechanical properties, with Young's modulus 417.65MPa and tensile strength 180.36MPa. For nonwoven scaffolds fabricated from the same materials, the Young's modulus and tensile strength were 2- and 4-fold lower, respectively. Woven scaffolds also supported adhesion and proliferation of mouse mesenchymal stem cells, and promoted biomineralization via alkaline phosphatase and mineral deposition. Finally, the scaffolds significantly enhanced the formation of new bone in damaged femoral condyle in rabbits. Thus, the scaffolds are potentially suitable for bone tissue engineering because of biomimetic architecture, excellent mechanical properties, and good biocompatibility.
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Affiliation(s)
- Weili Shao
- Key Laboratory of Advanced Textile Composites, Ministry of Education, Institute of Textile Composites, Tianjin Polytechnic University, Tianjin 300387, China; Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Jianxin He
- Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China.
| | - Qiming Han
- Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Feng Sang
- Department of Acquired Immune Deficiency Syndrome Treatment and Research Center, The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou 450000, China
| | - Qian Wang
- Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Li Chen
- Key Laboratory of Advanced Textile Composites, Ministry of Education, Institute of Textile Composites, Tianjin Polytechnic University, Tianjin 300387, China
| | - Shizhong Cui
- Key Laboratory of Advanced Textile Composites, Ministry of Education, Institute of Textile Composites, Tianjin Polytechnic University, Tianjin 300387, China; Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China
| | - Bin Ding
- Henan provincial key laboratory of functional textile materials, Zhongyuan University of Technology, Zhengzhou 450007, China; Collaborative Innovation Center of Textile and Garment Industry, Henan Province, Zhengzhou 450007, China; State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201600, China.
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O'Neill HL, Cassidy AP, Harris OB, Cassidy JW. BMP2/BMPR1A is linked to tumour progression in dedifferentiated liposarcomas. PeerJ 2016; 4:e1957. [PMID: 27114889 PMCID: PMC4841227 DOI: 10.7717/peerj.1957] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 03/31/2016] [Indexed: 01/30/2023] Open
Abstract
Bone Morphogenic Protein 2 (BMP2) is a multipurpose cytokine, important in the development of bone and cartilage, and with a role in tumour initiation and progression. BMP2 signal transduction is dependent on two distinct classes of serine/threonine kinase known as the type I and type II receptors. Although the type I receptors (BMPR1A and BMPR1B) are largely thought to have overlapping functions, we find tissue and cellular compartment specific patterns of expression, suggesting potential for distinct BMP2 signalling outcomes dependent on tissue type. Herein, we utilise large publicly available datasets from The Cancer Genome Atlas (TCGA) and Protein Atlas to define a novel role for BMP2 in the progression of dedifferentiated liposarcomas. Using disease free survival as our primary endpoint, we find that BMP2 confers poor prognosis only within the context of high BMPR1A expression. Through further annotation of the TCGA sarcoma dataset, we localise this effect to dedifferentiated liposarcomas but find overall BMP2/BMP receptor expression is equal across subsets. Finally, through gene set enrichment analysis we link the BMP2/BMPR1A axis to increased transcriptional activity of the matrisome and general extracellular matrix remodelling. Our study highlights the importance of continued research into the tumorigenic properties of BMP2 and the potential disadvantages of recombinant human BMP2 (rhBMP2) use in orthopaedic surgery. For the first time, we identify high BMP2 expression within the context of high BMPR1A expression as a biomarker of disease relapse in dedifferentiated liposarcomas.
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Affiliation(s)
- Hannah L O'Neill
- Aberdeen Royal Infirmary, University of Aberdeen , Aberdeen , United Kingdom
| | - Amy P Cassidy
- Aberdeen Royal Infirmary, University of Aberdeen, Aberdeen, United Kingdom; Queen Elizabeth University Hospital, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom
| | - Olivia B Harris
- Wellcome Trust-MRC Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom; Department of Pathology, University of Cambridge, Cambridge, United Kingdom
| | - John W Cassidy
- Queens' College, University of Cambridge, Cambridge Cambridgeshire, United Kingdom; Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
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Kim SK, Cho TH, Han JJ, Kim IS, Park Y, Hwang SJ. Comparative study of BMP-2 alone and combined with VEGF carried by hydrogel for maxillary alveolar bone regeneration. Tissue Eng Regen Med 2016; 13:171-181. [PMID: 30603397 DOI: 10.1007/s13770-015-0046-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/16/2015] [Accepted: 07/22/2015] [Indexed: 10/22/2022] Open
Abstract
The effect of vascular endothelial growth factor (VEGF) combined with bone morphogenetic protein-2 (BMP-2) for bone regeneration is still controversial as to whether or not VEGF has a synergistic or additive effect. This study attempted to evaluate the synergistic effect of VEGF and BMP-2 compared to BMP-2 alone for maxillary alveolar bone regeneration using collagen sponge/hydrogel complex sheets in a canine model. After mixing BMP-2 and VEGF with a hyaluronic acid-based hydrogel (HAH), the collagen sponge/hydrogel complex was transplanted into maxillary alveolar bone defects (n=14) after the extraction of canine upper first molars on both sides. Bone regeneration was evaluated in three groups (control group without growth factors, experimental groups I and II with BMP-2 alone and BMP-2 and VEGF, respectively) using micro-computed tomography and histological staining. The total amount of new bone formations and bone mineral density were significantly higher in the group with BMP-2 only and the group with BMP-2 combined with VEGF than it in the control group. The area with positive staining of von Willebrand factor bone defect was significantly greater in the group with BMP-2 only and with dual growth factors than the control. BMP-2 released from the HAH promoted new bone formation. However, the combination of BMP-2 and VEGF did not show a synergistic or additive effect on bone regeneration at canine maxillary alveolar bone defects.
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Affiliation(s)
- Sook Kyoung Kim
- 1Department of Biomedical Engineering, College of Medicine, Korea University, Seoul, Korea
| | - Tae Hyung Cho
- 2Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, Seoul, Korea
| | - Jeong Joon Han
- 2Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, Seoul, Korea
| | - In Sook Kim
- 3Dental Research Institute, BK 21 Plus, Seoul National University, Seoul, Korea
| | - Yongdoo Park
- 1Department of Biomedical Engineering, College of Medicine, Korea University, Seoul, Korea
| | - Soon Jung Hwang
- 2Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, Seoul, Korea.,3Dental Research Institute, BK 21 Plus, Seoul National University, Seoul, Korea
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Jia Y, Wang Z, Zang A, Jiao S, Chen S, Fu Y. Tetramethylpyrazine inhibits tumor growth of lung cancer through disrupting angiogenesis via BMP/Smad/Id-1 signaling. Int J Oncol 2016; 48:2079-86. [PMID: 26984046 DOI: 10.3892/ijo.2016.3443] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 02/24/2016] [Indexed: 11/05/2022] Open
Abstract
The underlying mechanisms of inhibitory effects induced by tetramethylpyrazine (TMP) on angiogenesis and tumor growth of lung cancer were investigated. In vitro cell proliferation, migration, and tube formation of human microvascular endothelial cells (HMEC-1) were evaluated by a 3-(4,5-dimethylthiazol-2-yl)-2,5-dephenyltetrazolium bromide (MTT), wound healing, Transwell, and Matrigel assays. The expression of BMP/Smad/Id-1 signals was detected by RT-PCR and western blotting. In an A549 xenograft tumor model, TMP (40 and 80 mg/kg/day) was intraperitoneally injected into mice. The expressions of CD31, phosphorylated Smad1/5/8, and Id-1 were measured by immunohistochemistry. We demonstrated that TMP inhibited proliferation, migration, and capillary tube formation of HMEC-1 in a dose- and time-dependent manner. Furthermore, treatment of HMEC-1 cells with TMP (0.4 mg/ml) significantly upregulated BMP2 expression and downregulated BMPRIA, BMPRII, phosphorylated Smad1/5/8, and Id-1 expression. In addition, administrations of TMP remarkably inhibited tumor growth of A549 xenograft in nude mice. The CD31, phosphorylated Smad1/5/8, and Id-1 expression were significantly inhibited in TMP-treated xenograft tumors compared with the vehicle. In conclusion, our results indicated that TMP suppressed angiogenesis and tumor growth of lung cancer via blocking the BMP/Smad/Id-1 signaling.
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Affiliation(s)
- Youchao Jia
- Department of Medical Oncology, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Zhigang Wang
- Department of Medical Oncology, Baoding Hengxing Hospital of Traditional Chinese and Western Medicine, Baoding 071000, P.R. China
| | - Aimin Zang
- Department of Medical Oncology, Affiliated Hospital of Hebei University, Baoding 071000, P.R. China
| | - Shunchang Jiao
- Department of Medical Oncology, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Sumei Chen
- Department of Medical Oncology, General Hospital of Chinese PLA, Beijing 100853, P.R. China
| | - Yan Fu
- Department of Medical Oncology, General Hospital of Chinese PLA, Beijing 100853, P.R. China
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Antonângelo L, Tuma T, Fabro A, Acencio M, Terra R, Parra E, Vargas F, Takagaki T, Capelozzi V. Id-1, Id-2, and Id-3 co-expression correlates with prognosis in stage I and II lung adenocarcinoma patients treated with surgery and adjuvant chemotherapy. Exp Biol Med (Maywood) 2016; 241:1159-68. [PMID: 26869608 DOI: 10.1177/1535370216632623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 01/22/2016] [Indexed: 12/25/2022] Open
Abstract
Inhibitors of DNA binding/inhibitors of differentiation (Id) protein family have been shown to be involved in carcinogenesis. However, the roles of Id during lung adenocarcinoma (ADC) progression remain unclear. Eighty-eight ADC samples were evaluated for Id-1,2,3 level and angiogenesis (CD 34 and VEGF microvessel density) by immunohistochemistry and morphometry. The impact of these markers was tested on follow-up until death or recurrence. A significant difference between tumor and normal tissue was found for Id-1,2,3 expression (P < 0.01). In addition, high levels of nuclear Id-1 were associated with higher angiogenesis in the tumor stroma (P < 0.01). Equally significant was the association between patients in T1-stage and low cytoplasmic Id-2, as well as patients in stage-IIb and low Id-3. High cytoplasm Id-3 expression was also directly associated to lymph nodes metastasis (P = 0.05). Patients at stages I to III, with low Id-1 and Id-3 cytoplasm histoscores showed significant long metastasis-free survival time than those with high Id-1 or Id-3 expression (P = 0.04). Furthermore, high MVD-CD34 and MVD-VEGF expression were associated with short recurrence-free survival compared to low MVD-CD34 and MVD-VEGF expressions (P = 0.04). Cox model analyses controlled for age, lymph node metastasis, and adjuvant treatments showed that nuclear Id-1, cytoplasmic Id-3, and MVD-CD34 were significantly associated with survival time. Median score for nuclear Id-1 and cytoplasmic Id-3 divided patients in two groups, being that those with increased Id-1 and Id-3 presented higher risk of death. Ids showed an independent prognostic value in patients with lung ADC, regardless of disease stage. Id-1 and Id-3 should be considered new target candidates in the development of personalized therapy in lung ADC.
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Affiliation(s)
- Leila Antonângelo
- Department of Pathology, University of Sao Paulo, Sao Paulo 01246903,Brazil
| | - Taila Tuma
- Department of Pathology, University of Sao Paulo, Sao Paulo 01246903,Brazil
| | - Alexandre Fabro
- Department of Pathology, University of Sao Paulo, Sao Paulo 01246903,Brazil
| | - Milena Acencio
- Pulmonary Division, Heart Institute Clinics Hospital, University of Sao Paulo, Sao Paulo 01246903, Brazil
| | - Ricardo Terra
- Pulmonary Division, Heart Institute Clinics Hospital, University of Sao Paulo, Sao Paulo 01246903, Brazil
| | - Edwin Parra
- Department of Pathology, University of Sao Paulo, Sao Paulo 01246903,Brazil
| | - Francisco Vargas
- Pulmonary Division, Heart Institute Clinics Hospital, University of Sao Paulo, Sao Paulo 01246903, Brazil
| | - Teresa Takagaki
- Pulmonary Division, Heart Institute Clinics Hospital, University of Sao Paulo, Sao Paulo 01246903, Brazil
| | - Vera Capelozzi
- Department of Pathology, University of Sao Paulo, Sao Paulo 01246903,Brazil
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Barati D, Shariati SRP, Moeinzadeh S, Melero-Martin JM, Khademhosseini A, Jabbari E. Spatiotemporal release of BMP-2 and VEGF enhances osteogenic and vasculogenic differentiation of human mesenchymal stem cells and endothelial colony-forming cells co-encapsulated in a patterned hydrogel. J Control Release 2015; 223:126-136. [PMID: 26721447 DOI: 10.1016/j.jconrel.2015.12.031] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 11/30/2015] [Accepted: 12/16/2015] [Indexed: 01/02/2023]
Abstract
Reconstruction of large bone defects is limited by insufficient vascularization and slow bone regeneration. The objective of this work was to investigate the effect of spatial and temporal release of recombinant human bone morphogenetic protein-2 (BMP2) and vascular endothelial growth factor (VEGF) on the extent of osteogenic and vasculogenic differentiation of human mesenchymal stem cells (hMSCs) and endothelial colony-forming cells (ECFCs) encapsulated in a patterned hydrogel. Nanogels (NGs) based on polyethylene glycol (PEG) macromers chain-extended with short lactide (L) and glycolide (G) segments were used for grafting and timed-release of BMP2 and VEGF. NGs with 12kDa PEG molecular weight (MW), 24 LG segment length, and 60/40L/G ratio (P12-II, NG(10)) released the grafted VEGF in 10days. NGs with 8kDa PEG MW, 26 LG segment length, and 60/40L/G ratio (P8-I, NG(21)) released the grafted BMP2 in 21days. hMSCs and NG-BMP2 were encapsulated in a patterned matrix based on acrylate-functionalized lactide-chain-extended star polyethylene glycol (SPELA) hydrogel and microchannel patterns filled with a suspension of hMSCs+ECFCs and NG-VEGF in a crosslinked gelatin methacryloyl (GelMA) hydrogel. Groups included patterned constructs without BMP2/VEGF (None), with directly added BMP2/VEGF, and NG-BMP2/NG-VEGF. Based on the results, timed-release of VEGF in the microchannels in 10days from NG(10) and BMP2 in the matrix in 21days from NG(21) resulted in highest extent of osteogenic and vasculogenic differentiation of the encapsulated hMSCs and ECFCs compared to direct addition of VEGF and BMP2. Further, timed-release of VEGF from NG(10) in hMSC+ECFC encapsulating microchannels and BMP2 from NG(21) in hMSC encapsulating matrix sharply increased bFGF expression in the patterned constructs. The results suggest that mineralization and vascularization are coupled by localized secretion of paracrine signaling factors by the differentiating hMSCs and ECFCs.
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Affiliation(s)
- Danial Barati
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Seyed Ramin Pajoum Shariati
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Seyedsina Moeinzadeh
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA
| | - Juan M Melero-Martin
- Department of Cardiac Surgery, Boston Children's Hospital, Boston, MA 02115, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston 02115, MA, USA; Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayangdong, Gwangjin-gu, Seoul 143-701, Republic of Korea
| | - Esmaiel Jabbari
- Biomimetic Materials and Tissue Engineering Laboratory, Department of Chemical Engineering, University of South Carolina, Columbia, SC 29208, USA.
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Ohlrich EJ, Coates DE, Cullinan MP, Milne TJ, Zafar S, Zhao Y, Duncan WD, Seymour GJ. The bisphosphonate zoledronic acid regulates key angiogenesis-related genes in primary human gingival fibroblasts. Arch Oral Biol 2015; 63:7-14. [PMID: 26658366 DOI: 10.1016/j.archoralbio.2015.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 09/03/2015] [Accepted: 11/18/2015] [Indexed: 10/22/2022]
Abstract
BACKGROUND Osteonecrosis of the jaws is recognised as a serious complication for patients receiving bisphosphonates. The anti-angiogenic effects of bisphosphonates have been implicated in the pathogenesis of bisphosphonate-related osteonecrosis of the jaw (BRONJ). The purpose of this study was to determine the effects of zoledronic acid on cultured human gingival fibroblasts in relation to the modulation of genes associated with angiogenic regulation. METHODS Primary cultures of fibroblasts were developed from gingival tissues excised during crown-lengthening surgery from three patients. Cells were cultured with and without 30μM zoledronic acid for 6, 12 and 24h and cellular proliferation and migration investigated using CellTiter-Blue and scratch wound assays, respectively. Gene expression was determined using semi-quantitative PCR array technology that allowed the analysis of 84 pathway-focused genes known to be important in the regulation of angiogenesis. RESULTS Zoledronic acid increased the proliferation of the gingival fibroblasts in a dose dependent manner with 12 and 24h of exposure. Scratch wounding of the human gingival fibroblasts and treatment with increasing doses and time exposure to zoledronic acid (ZA) inhibited their migration. Statistically significant increases in gene expression were found for RHOB, VEGFA, CD55 and BMP2 (p≤0.05) in response to 30μM zoledronic acid. CCL2 and IL6 genes were significantly downregulated (p≤0.05). CONCLUSIONS The regulation of the prenylated protein RHOB in this study was consistent with the known effects of zoledronic acid on the mevalonate pathway. The down regulation of CCL2 and IL6 and the upregulation of CD55 may be associated with suppression of inflammation. An increase in VEGFA and BMP2 gene expression suggests that fibroblasts respond to zoledronic acid by producing a proangiogenic environment.
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Affiliation(s)
- E J Ohlrich
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - D E Coates
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand.
| | - M P Cullinan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - T J Milne
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - S Zafar
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - Y Zhao
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - W D Duncan
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
| | - G J Seymour
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin 9054, New Zealand
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Cranial neural crest deletion of VEGFa causes cleft palate with aberrant vascular and bone development. Cell Tissue Res 2015; 361:711-22. [DOI: 10.1007/s00441-015-2150-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2014] [Accepted: 02/05/2015] [Indexed: 12/15/2022]
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Subbiah R, Du P, Hwang MP, Kim IG, Van SY, Noh YK, Park H, Park K. Dual growth factor-loaded core-shell polymer microcapsules can promote osteogenesis and angiogenesis. Macromol Res 2014. [DOI: 10.1007/s13233-014-2183-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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CD34/CD133 enriched bone marrow progenitor cells promote neovascularization of tissue engineered constructs in vivo. Stem Cell Res 2014; 13:465-77. [DOI: 10.1016/j.scr.2014.10.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 08/22/2014] [Accepted: 10/13/2014] [Indexed: 12/12/2022] Open
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Role of angiogenesis in bone repair. Arch Biochem Biophys 2014; 561:109-17. [PMID: 25034215 DOI: 10.1016/j.abb.2014.07.006] [Citation(s) in RCA: 236] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Revised: 07/01/2014] [Accepted: 07/08/2014] [Indexed: 12/25/2022]
Abstract
Bone vasculature plays a vital role in bone development, remodeling and homeostasis. New blood vessel formation is crucial during both primary bone development as well as fracture repair in adults. Both bone repair and bone remodeling involve the activation and complex interaction between angiogenic and osteogenic pathways. Interestingly studies have demonstrated that angiogenesis precedes the onset of osteogenesis. Indeed reduced or inadequate blood flow has been linked to impaired fracture healing and old age related low bone mass disorders such as osteoporosis. Similarly the slow penetration of host blood vessels in large engineered bone tissue grafts has been cited as one of the major hurdle still impeding current bone construction engineering strategies. This article reviews the current knowledge elaborating the importance of vascularization during bone healing and remodeling, and the current therapeutic strategies being adapted to promote and improve angiogenesis.
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Lee D, Shenoy S, Nigatu Y, Plotkin M. Id proteins regulate capillary repair and perivascular cell proliferation following ischemia-reperfusion injury. PLoS One 2014; 9:e88417. [PMID: 24516656 PMCID: PMC3917915 DOI: 10.1371/journal.pone.0088417] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 01/07/2014] [Indexed: 01/08/2023] Open
Abstract
Acute kidney injury (AKI) results in microvascular damage that if not normally repaired, may lead to fibrosis. The Id1 and 3 proteins have a critical role in promoting angiogenesis during development, tumor growth and wound repair by functioning as dominant negative regulators of bHLH transcription factors. The goal of this study was to determine if Id proteins regulate microvascular repair and remodeling and if increased Id1 expression results in decreased capillary loss following AKI. The effect of changes in Id expression in vivo was examined using Id1−/−, Id3RFP/+ (Id1/Id3 KO) and Tek (Tie2)-rtTA, TRE-lacz/TRE Id1 (TRE Id1) mice with doxycycline inducible endothelial Id1 and β-galactosidase expression. Id1 and 3 were co-localized in endothelial cells in normal adult kidneys and protein levels were increased at day 3 following ischemia-reperfusion injury (IRI) and contralateral nephrectomy. Id1/Id3 KO mice had decreased baseline capillary density and pericyte coverage and increased tubular damage following IRI but decreased interstitial cell proliferation and fibrosis compared with WT littermates. No compensatory increase in kidney size occurred in KO mice resulting in increased creatinine compared with WT and TRE Id1 mice. TRE Id1 mice had no capillary rarefaction within 1 week following IRI in comparison with WT littermates. TRE Id1 mice had increased proliferation of PDGFRβ positive interstitial cells and medullary collagen deposition and developed capillary rarefaction and albuminuria at later time points. These differences were associated with increased Angiopoietin 1 (Ang1) and decreased Ang2 expression in TRE Id1 mice. Examination of gene expression in microvascular cells isolated from WT, Id1/Id3 KO and TRE Id1 mice showed increased Ang1 and αSMA in Id1 overexpressing cells and decreased pericyte markers in cells from KO mice. These results suggest that increased Id levels following AKI result in microvascular remodeling associated with increased fibrosis.
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Affiliation(s)
- David Lee
- Department of Medicine, Renal Research Division, New York Medical College, Valhalla, New York, United States of America
| | - Shantheri Shenoy
- Department of Medicine, Renal Research Division, New York Medical College, Valhalla, New York, United States of America
| | - Yezina Nigatu
- Department of Medicine, Renal Research Division, New York Medical College, Valhalla, New York, United States of America
| | - Matt Plotkin
- Department of Medicine, Renal Research Division, New York Medical College, Valhalla, New York, United States of America
- * E-mail:
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Lin Z, Wang JS, Lin L, Zhang J, Liu Y, Shuai M, Li Q. Effects of BMP2 and VEGF165 on the osteogenic differentiation of rat bone marrow-derived mesenchymal stem cells. Exp Ther Med 2013; 7:625-629. [PMID: 24520257 PMCID: PMC3919869 DOI: 10.3892/etm.2013.1464] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Accepted: 10/21/2013] [Indexed: 01/17/2023] Open
Abstract
Bone marrow-derived mesenchymal stem cells (MSCs) are dominant seed cell sources for bone regeneration. Bone morphogenetic proteins (BMPs) initiate cartilage and bone formation in a sequential cascade. Vascular endothelial growth factor (VEGF) is an essential coordinator of extracellular matrix remodeling, angiogenesis and bone formation. In the present study, the effects of the vascular endothelial growth factor 165 (VEGF165) and bone morphogenetic protein 2 (BMP2) genes on bone regeneration were investigated by the lentivirus-mediated cotransfection of the two genes into rat bone marrow-derived MSCs. The successful co-expression of the two genes in the MSCs was confirmed using quantitative polymerase chain reaction (qPCR) and western blot analysis. The results of alizarin red and alkaline phosphatase (ALP) staining at 14 days subsequent to transfection showed that the area of staining in cells transfected with BMP2 alone was higher than that in cells transfected with BMP2 and VEGF165 or untransfected control cells, while the BMP2 + VEGF165 group showed significantly more staining than the untransfected control. This indicated that BMP2 alone exhibited a stronger effect in bone regeneration than BMP2 in combination with VEGF165. Similarly, in inducing culture medium, the ALP activity of the BMP2 + VEGF165 group was notably suppressed compared with that of the BMP2 group. The overexpression of VEGF165 inhibited BMP2-induced MSC differentiation and osteogenesis in vitro. Whether or not local VEGF gene therapy is likely to affect bone regeneration in vivo requires further investigation.
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Affiliation(s)
- Zhaowei Lin
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Jiang-Sheng Wang
- Department of Orthopaedics, Lund University Hospital, S-22185 Lund, Sweden
| | - Lijun Lin
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Jingwen Zhang
- Department of Orthopaedic Rehabilitation, Guangdong Provincial Work Injury Rehabilitation Center, Guangzhou, Guangdong 510440, P.R. China
| | - Yunlong Liu
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Ming Shuai
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Qi Li
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
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Wang R, Zhang K, Li S, Tong Z, Li G, Zhao Z, Zhao Y, Liu F, Lin X, Wang Z, Jiang Z. Apolipoprotein (a) impairs endothelial progenitor cell-mediated angiogenesis. DNA Cell Biol 2013; 32:243-51. [PMID: 23581552 DOI: 10.1089/dna.2013.1963] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Improvement of blood flow and promotion of angiogenesis are important therapeutic measures for the treatment of ischemic peripheral vascular diseases. Since apolipoprotein (a) (apo (a)) is a glycoprotein with repetitive kringle domains exhibiting 75% to 98% structural homology with plasminogen (Plg), apo (a) may also have a negative effect on endothelial progenitor cell (EPC)-induced angiogenesis through Plg-like inhibitory effects on EPC proliferation, adhesion, migration, and angiogenesis. To evaluate the effect of apo (a) on EPCs-induced angiogenesis, EPCs were isolated from the bone marrow of apo (a) transgenic mice, wild-type litter mates, and normal mice. These cells were cultured without or with apo (a) before transplantation. Hindlimb ischemia models were surgically induced in mice, which then received an intravenous injection of 3×10(5) EPCs. At 3, 7, and 14 days post EPC transplantation, the adhesion, migration abilities, and capillary density in calf muscles were assessed. Results indicate that apo (a) significantly reduced the adhesion and migration abilities of EPCs. Furthermore, the tubule-like formation of EPCs on Matrigel gels was damaged. In vivo experiments showed the homing of EPCs to ischemic peripheral vascular, and the number of capillary vessels decreased significantly in apo(a) transgenic mice. This study demonstrated that apo (a) could attenuate the adhesion, migration, and homing abilities of EPCs and could impair the angiogenesis ability of EPCs.
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Affiliation(s)
- Ren Wang
- Key Laboratory for Arteriosclerology of Hunan Province, Institute of Cardiovascular Disease, University of South China, Hengyang City, China
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Liu H, Peng H, Wu Y, Zhang C, Cai Y, Xu G, Li Q, Chen X, Ji J, Zhang Y, OuYang HW. The promotion of bone regeneration by nanofibrous hydroxyapatite/chitosan scaffolds by effects on integrin-BMP/Smad signaling pathway in BMSCs. Biomaterials 2013; 34:4404-17. [PMID: 23515177 DOI: 10.1016/j.biomaterials.2013.02.048] [Citation(s) in RCA: 221] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 02/17/2013] [Indexed: 02/07/2023]
Abstract
In bone tissue engineering, a combination of biomimetic nanofibrous scaffolds with renewable stem cells has recently emerged as a new strategy for promoting bone regeneration. We have previously developed a biomimetic nanocomposite nanofibrous scaffold of hydroxyapatite/chitosan (nHAp/CTS) [1]. However, the mechanism behind the supportive function of the scaffolds has not yet been adequately explored. Here, we evaluated the effect of nHAp/CTS seeded with bone marrow mesenchymal stem cells (BMSCs) on bone regeneration and examined the underlying mechanism in vitro and in vivo. The scaffolds of nHAp/CTS induced higher proliferation of BMSCs than membranous hydroxyapatite/chitosan (mHAp/CTS) and electrospun nanofibrous chitosan (nCTS) did. Interestingly, regardless the nanfibrous effect, nHAp/CTS and mHAp/CTS supported the spindle-shaped morphology, in contrast to the spherical shape of BMSCs on nCTS, indicating that HAp supports cell adhesion. Furthermore, the levels of the mRNA for Smad1, BMP-2/4, Runx2, ALP, collagen I, integrin subunits together with myosins were significantly up-regulated on nHAp/CTS whereas these genes were expressed at markedly low levels on mHAp/CTS and nCTS even in osteogenic medium. In addition, the critical proteins pSmad1/5/8 in BMP pathway showed clear nuclear localization and osteocalcin were significantly elevated on nHAp/CTS than mHAp/CTS (P < 0.01) and nCTS (P < 0.01). Similarly, the cells exhibited higher ALP activity on nHAp/CTS than mHAp/CTS (P < 0.01) and nCTS (P < 0.05). Therefore, the findings indicated the activating of intergrin-BMP/Smad signaling pathway of BMSCs on nHAp/CTS. Finally, in vivo, nHAp/CTS/BMSCs had a superior ability of bone reconstruction than other groups for cranial bone defects. In conclusion, our results demonstrated that nHAp/CTS scaffold promotes bone regeneration by supporting the adhesion, proliferation and activating integrin-BMP/Smad signaling pathway of BMSCs both in vitro and in vivo.
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Affiliation(s)
- Huanhuan Liu
- Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, China
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Dariima T, Jin GZ, Lee EJ, Wall IB, Kim HW. Cooperation between osteoblastic cells and endothelial cells enhances their phenotypic responses and improves osteoblast function. Biotechnol Lett 2013; 35:1135-43. [PMID: 23479411 DOI: 10.1007/s10529-013-1170-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2012] [Accepted: 02/18/2013] [Indexed: 01/23/2023]
Abstract
Osteogenesis requires close co-operation with angiogenesis to create vascularized bone tissue. In this study, an indirect co-culture model using osteoblasts (OBs), primary endothelial cells (ECs) and Matrigel interlayer was established to understand the impact of each cell type on the other. ECs synergistically enhanced osteoblastic gene expression by OBs, while OBs were capable of supporting tubule-like structures formed by ECs on Matrigel, enhancing mean tubule length from 146.5 ± 23.5 μm in ECs alone to 192 ± 28.6 μm in co-culture (p < 0.05). Similar improvements were noted in terms of tubule number. An applicability study of the co-culture model to bone tissue engineering, performed on a biopolymer fibrous membrane, showed substantially enhanced deposition of calcified nodules. These results demonstrate the efficacy of co-culture with ECs to improve osteogenesis for bone tissue engineering.
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Affiliation(s)
- Tuvd Dariima
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, Republic of Korea
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Shirota T, Shintani S, Yoshizawa Y, Kuboki Y, Sammons R, Yagami K. Optimal Diameter of Honeycomb Tunnel Structure induces Bone Regeneration and Metabolism by Promoting Angiogenesis for an Implant Circumference Bone Defect. J HARD TISSUE BIOL 2013. [DOI: 10.2485/jhtb.22.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yang N, Chen P, Tao Z, Zhou N, Gong X, Xu Z, Zhang M, Zhang D, Chen B, Tao Z, Yang Z. Beneficial effects of ginsenoside-Rg1 on ischemia-induced angiogenesis in diabetic mice. Acta Biochim Biophys Sin (Shanghai) 2012; 44:999-1005. [PMID: 23111241 DOI: 10.1093/abbs/gms092] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Neovascularization and the formation of collateral vessels are often impaired in diabetes mellitus (DM) population compared with non-diabetics. Alterations in vascular endothelial growth factor (VEGF) signaling and endothelial nitric oxide synthase (eNOS) dysfunction have been confirmed to play a crucial role in impaired neovascularization in diabetic mice. Accumulating data have suggested that Rg1, a main component of Panax ginseng, has the ability to promote tubulogenesis of human umbilical vein endothelial cells (HUVECs) in vitro, and that the mechanism involves increased expression level of VEGF as well as increased eNOS activation. Thus, we speculated that Rg1 might also have therapeutic effects on the impairment of neovascularization in diabetic individuals. The aim of the present study was to investigate whether Rg1 could improve angiogenesis in ischemic hindlimb of diabetic mice in vivo. Our data demonstrated that Rg1 treatment resulted in improved angiogenesis in the diabetic ischemic hindlimb, and the potential mechanism might involve increased eNOS activation, upregulated VEGF expression, and inhibited apoptosis. Our results suggest that Rg1 may be used as a novel and useful adjunctive drug for the therapy of peripheral arterial disease in DM.
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MESH Headings
- Animals
- Blood Glucose/metabolism
- Blotting, Western
- Central Nervous System Agents/pharmacology
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/prevention & control
- Drugs, Chinese Herbal/pharmacology
- Fluorescent Antibody Technique
- Ginsenosides/pharmacology
- Hindlimb/blood supply
- Hindlimb/drug effects
- Ischemia/complications
- Laser-Doppler Flowmetry/methods
- Male
- Mice
- Mice, Inbred C57BL
- Muscle, Skeletal/blood supply
- Muscle, Skeletal/drug effects
- Neovascularization, Pathologic/etiology
- Neovascularization, Pathologic/metabolism
- Neovascularization, Pathologic/prevention & control
- Nitric Oxide Synthase Type III/metabolism
- Platelet Endothelial Cell Adhesion Molecule-1/metabolism
- Regional Blood Flow/drug effects
- Vascular Endothelial Growth Factor A/metabolism
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Affiliation(s)
- Naiquan Yang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Willis MS, Dyer LA, Ren R, Lockyer P, Moreno-Miralles I, Schisler JC, Patterson C. BMPER regulates cardiomyocyte size and vessel density in vivo. Cardiovasc Pathol 2012. [PMID: 23200275 DOI: 10.1016/j.carpath.2012.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND BMPER, an orthologue of Drosophila melanogaster Crossveinless-2, is a secreted factor that regulates bone morphogenetic protein activity in endothelial cell precursors and during early cardiomyocyte differentiation. Although previously described in the heart, the role of BMPER in cardiac development and function remain unknown. METHODS BMPER-deficient hearts were phenotyped histologically and functionally using echocardiography and Doppler analysis. Since BMPER -/- mice die perinatally, adult BMPER +/- mice were challenged to pressure-overload-induced cardiac hypertrophy and hindlimb ischemia to determine changes in angiogenesis and regulation of cardiomyocyte size. RESULTS We identify for the first time the cardiac phenotype associated with BMPER haploinsufficiency. BMPER messenger RNA and protein are present in the heart during cardiac development through at least E14.5 but is lost by E18.5. BMPER +/- ventricles are thinner and less compact than sibling wild-type hearts. In the adult, BMPER +/- hearts present with decreased anterior and posterior wall thickness, decreased cardiomyocyte size and an increase in cardiac vessel density. Despite these changes, BMPER +/- mice respond to pressure-overload-induced cardiac hypertrophy challenge largely to the same extent as wild-type mice. CONCLUSION BMPER appears to play a role in regulating both vessel density and cardiac development in vivo; however, BMPER haploinsufficiency does not result in marked effects on cardiac function or adaptation to pressure overload hypertrophy.
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Affiliation(s)
- Monte S Willis
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
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Szpalski C, Barbaro M, Sagebin F, Warren SM. Bone tissue engineering: current strategies and techniques--part II: Cell types. TISSUE ENGINEERING PART B-REVIEWS 2012; 18:258-69. [PMID: 22224439 DOI: 10.1089/ten.teb.2011.0440] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone repair and regeneration is a dynamic process that involves a complex interplay between the (1) ground substance; (2) cells; and (3) milieu. Each constituent is integral to the final product, but it is often helpful to consider each component individually. While bone tissue engineering has capitalized on a number of breakthrough technologies, one of the most valued advancements is the incorporation of mesenchymal stem cells (SCs) into bone tissue engineering applications. With this new idea, however, came new found problems of guiding SC differentiation. Moreover, investigators are still working to understand which SCs source produces optimal bone formation in vitro and in vivo. Bone marrow-derived mesenchymal SCs and adipose-derived SCs have been researched most extensively, but other SC sources, including dental pulp, blood, umbilical cord blood, epithelial cells reprogrammed to become induced pluripotent SCs, among others, are being investigated. In Part II of this review series, we discuss the variety of cell types (e.g., osteocytes, osteoblasts, osteoclasts, chondrocytes, mesenchymal SCs, and vasculogenic cells) important in bone tissue engineering.
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Affiliation(s)
- Caroline Szpalski
- Department of Plastic Surgery, New York University Langone Medical Center, New York, New York 10016, USA
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