1
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Yu Y, Wang S, Chen X, Gao Z, Dai K, Wang J, Liu C. Sulfated oligosaccharide activates endothelial Notch for inducing macrophage-associated arteriogenesis to treat ischemic diseases. Proc Natl Acad Sci U S A 2023; 120:e2307480120. [PMID: 37943835 PMCID: PMC10655224 DOI: 10.1073/pnas.2307480120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/01/2023] [Indexed: 11/12/2023] Open
Abstract
Ischemic diseases lead to considerable morbidity and mortality, yet conventional clinical treatment strategies for therapeutic angiogenesis fall short of being impactful. Despite the potential of biomaterials to deliver pro-angiogenic molecules at the infarct site to induce angiogenesis, their efficacy has been impeded by aberrant vascular activation and off-target circulation. Here, we present a semisynthetic low-molecular sulfated chitosan oligosaccharide (SCOS) that efficiently induces therapeutic arteriogenesis with a spontaneous generation of collateral circulation and blood reperfusion in rodent models of hind limb ischemia and myocardial infarction. SCOS elicits anti-inflammatory macrophages' (Mφs') differentiation into perivascular Mφs, which in turn directs artery formation via a cell-to-cell communication rather than secretory factor regulation. SCOS-mediated arteriogenesis requires a canonical Notch signaling pathway in Mφs via the glycosylation of protein O-glucosyltransferases 2, which results in promoting arterial differentiation and tissue repair in ischemia. Thus, this highly bioactive oligosaccharide can be harnessed to direct efficiently therapeutic arteriogenesis and perfusion for the treatment of ischemic diseases.
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Affiliation(s)
- Yuanman Yu
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai200237, People’s Republic of China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Shuang Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Xinye Chen
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Zehua Gao
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Kai Dai
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Jing Wang
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai200237, People’s Republic of China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai200237, People’s Republic of China
| | - Changsheng Liu
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, East China University of Science and Technology, Shanghai200237, People’s Republic of China
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai200237, People’s Republic of China
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2
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Zhang C, Wang G, An Y. Achieving Nasal Septal Cartilage In Situ Regeneration: Focus on Cartilage Progenitor Cells. Biomolecules 2023; 13:1302. [PMID: 37759702 PMCID: PMC10527213 DOI: 10.3390/biom13091302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/10/2023] [Accepted: 08/17/2023] [Indexed: 09/29/2023] Open
Abstract
The nasal septal cartilage plays an important role in preventing the collapse of the nasal bones and maintaining the appearance of the nose. In the context of inherent difficulties regarding septal cartilage repair and the shortage of cartilage graft resources for regeneration, tissue engineering, especially the in situ strategy based on scaffolds, has become a new prospect and become one of the most promising approaches. Given that it is difficult for chondrocytes to achieve directional migration and secrete matrix components to participate in tissue repair after cartilage injury, cartilage progenitor cells (CPCs), with great migratory ability and stem cell characteristics, have caught the attention of researchers and brought hope for nasal septal cartilage in situ regeneration. In this review, we first summarized the distribution, characteristics, isolation, and culture methods of nasal septal CPCs. Subsequently, we described the roles of migratory CPCs in cartilage regeneration. Finally, we reviewed the existing studies on CPCs-based cartilage tissue engineering and summarized the strategies for promoting the migration and chondrogenesis of CPCs so as to provide ideas for achieving nasal septal cartilage in situ regeneration.
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Affiliation(s)
| | | | - Yang An
- Department of Plastic Surgery, Peking University Third Hospital, 49 North Garden Road, Haidian District, Beijing 100191, China; (C.Z.)
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3
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Wang B, Jiang Q, Yang G, Wang H, Wang H, Peng F, Yu H, Huang J, Zhong G, Cao Y. Electric Field-Assisted Uptake of Hexavalent Chromium Ions with In Situ Regeneration of Carbon Monolith Adsorbents. Adv Sci (Weinh) 2023:e2301419. [PMID: 37144541 PMCID: PMC10375139 DOI: 10.1002/advs.202301419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Indexed: 05/06/2023]
Abstract
The uptake of hexavalent chromium (Cr(VI)) ions from wastewater is of great significance for environmental remediation and resource utilization. In this study, a self-designed instrument equipped with an oxidized mesoporous carbon monolith (o-MCM) as an electro-adsorbent is developed. o-MCM with a super hydrophilic surface displayed a high specific surface area (up to 686.5 m2 g-1 ). With the assistance of an electric field (0.5 V), the removal capacity of Cr(VI) ions is as high as 126.6 mg g-1 , much higher than that without an electric field (49.5 mg g-1 ). During this process, no reduction reaction of Cr(VI) to Cr(III) ions is observed. After adsorption, the reverse electrode with 10 V is used to efficiently desorb the ions on the carbon surface. Meanwhile, the in situ regeneration of carbon adsorbents can be obtained even after ten recycles. On this basis, the enrichment of Cr(VI) ions in a special solution is achieved with the assistance of an electric field. This work lays a foundation for the uptake of heavy metal ions from wastewater with the assistance of the electric field.
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Affiliation(s)
- Biao Wang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Qi Jiang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Guangxing Yang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Haofan Wang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Hongjuan Wang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Feng Peng
- Guangzhou Key Laboratory for New Energy and Green Catalysis, School of Chemistry and Chemical Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Hao Yu
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
| | - Jiangnan Huang
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, 510225, Guangzhou, China
| | - Guoyu Zhong
- School of Chemical Engineering and Energy Technology, Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, 523808, Dongguan, China
| | - Yonghai Cao
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640, Guangzhou, China
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4
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Huber L, Gvaramia D, Kern J, Jakob Y, Zoellner FG, Hirsch D, Breiter R, Brenner RE, Rotter N. In situ regeneration of nasal septal defects using acellular cartilage enhanced with platelet-derived growth factor. J Tissue Eng 2022; 13:20417314221114423. [PMID: 36158899 PMCID: PMC9493673 DOI: 10.1177/20417314221114423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 07/02/2022] [Indexed: 11/30/2022] Open
Abstract
Nasal septum defects can currently only be reconstructed using autologous cartilage grafts. In this study, we examine the reconstruction of septal cartilage defects in a rabbit model using porcine decellularized nasal septal cartilage (DNSC) functionalized with recombinant platelet-derived growth factor-BB (PDFG-BB). The supportive function of the transplanted DNSC was estimated by the degree of septum deviation and shrinkage using magnetic resonance imaging (MRI). The biocompatibility of the transplanted scaffolds was evaluated by histology according to international standards. A study group with an autologous septal transplant was used as a reference. In situ regeneration of cartilage defects was assessed by histological evaluation 4 and 16 weeks following DNSC transplantation. A study group with non-functionalized DNSC was introduced for estimation of the effects of PDFG-BB functionalization. DNSC scaffolds provided sufficient structural support to the nasal septum, with no significant shrinkage or septal deviations as evaluated by the MRI. Biocompatibility analysis after 4 weeks revealed an increased inflammatory reaction of the surrounding tissue in response to DNSC as compared to the autologous transplants. The inflammatory reaction was, however, significantly attenuated after 16 weeks in the PDGF-BB group whereas only a slight improvement of the biocompatibility score was observed in the untreated group. In situ regeneration of septal cartilage, as evidenced by the degradation of the DNSC matrix and production of neocartilage, was observed in both experimental groups after 16 weeks but was more pronounced in the PDFG-BB group. Overall, DNSC provided structural support to the nasal septum and stimulated in situ regeneration of the cartilage tissue. Furthermore, PDFG-BB augmented the regenerative potential of DNSC and enhanced the healing process, as demonstrated by reduced inflammation after 16 weeks.
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Affiliation(s)
- Lena Huber
- Department of Otorhinolaryngology, Head
and Neck Surgery, University Medical Center Mannheim, Heidelberg University,
Mannheim, Germany
| | - David Gvaramia
- Department of Otorhinolaryngology, Head
and Neck Surgery, Medical Faculty Mannheim, Heidelberg University, Mannheim,
Germany
| | - Johann Kern
- Department of Otorhinolaryngology, Head
and Neck Surgery, Medical Faculty Mannheim, Heidelberg University, Mannheim,
Germany
| | - Yvonne Jakob
- Department of Otorhinolaryngology, Head
and Neck Surgery, Medical Faculty Mannheim, Heidelberg University, Mannheim,
Germany
| | - Frank G Zoellner
- Computer Assisted Clinical Medicine,
Mannheim Institute for Intelligent System, Medical Faculty Mannheim, Heidelberg
University, Mannheim, Germany
| | - Daniela Hirsch
- Institute of Pathology, University
Medical Center Mannheim, Heidelberg University, Mannheim, Germany
| | - Roman Breiter
- Institute of Bioprocess Engineering,
University of Erlangen, Erlangen, Germany
| | - Rolf E Brenner
- Division for Biochemistry of Joint and
Connective Tissue Diseases, Department of Orthopedics, University of Ulm, Ulm,
Germany
| | - Nicole Rotter
- Department of Otorhinolaryngology, Head
and Neck Surgery, University Medical Center Mannheim, Heidelberg University,
Mannheim, Germany,Department of Otorhinolaryngology, Head
and Neck Surgery, Medical Faculty Mannheim, Heidelberg University, Mannheim,
Germany,Nicole Rotter, Department of
Otorhinolaryngology, Head and Neck Surgery, University Medical Center Mannheim,
University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
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5
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Levinson C, Cavalli E, von Rechenberg B, Zenobi-Wong M, Darwiche SE. Combination of a Collagen Scaffold and an Adhesive Hyaluronan-Based Hydrogel for Cartilage Regeneration: A Proof of Concept in an Ovine Model. Cartilage 2021; 13:636S-649S. [PMID: 33511860 PMCID: PMC8721621 DOI: 10.1177/1947603521989417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Hyaluronic acid-transglutaminase (HA-TG) is an enzymatically crosslinkable adhesive hydrogel with chondrogenic properties demonstrated in vitro and in an ectopic mouse model. In this study, we investigated the feasibility of using HA-TG in a collagen scaffold to treat chondral lesions in an ovine model, to evaluate cartilage regeneration in a mechanically and biologically challenging joint environment, and the influence of the surgical procedure on the repair process. DESIGN Chondral defects of 6-mm diameter were created in the stifle joint of skeletally mature sheep. In a 3-month study, 6 defects were treated with HA-TG in a collagen scaffold to test the stability and biocompatibility of the defect filling. In a 6-month study, 6 sheep had 12 defects treated with HA-TG and collagen and 2 sheep had 4 untreated defects. Histologically observed quality of repair tissue and adjacent cartilage was semiquantitatively assessed. RESULTS HA-TG adhered to the native tissue and did not cause any detectable negative reaction in the surrounding tissue. HA-TG in a collagen scaffold supported infiltration and chondrogenic differentiation of mesenchymal cells, which migrated from the subchondral bone through the calcified cartilage layer. Additionally, HA-TG and collagen treatment led to better adjacent cartilage preservation compared with empty defects (P < 0.05). CONCLUSIONS This study demonstrates that the adhesive HA-TG hydrogel in a collagen scaffold shows good biocompatibility, supports in situ cartilage regeneration and preserves the surrounding cartilage. This proof-of-concept study shows the potential of this approach, which should be further considered in the treatment of cartilage lesions using a single-step procedure.
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Affiliation(s)
- Clara Levinson
- Tissue Engineering and Biofabrication,
Institute for Biomechanics, Swiss Federal Institute of Technology Zurich (ETH
Zurich), Zurich, Switzerland
| | - Emma Cavalli
- Tissue Engineering and Biofabrication,
Institute for Biomechanics, Swiss Federal Institute of Technology Zurich (ETH
Zurich), Zurich, Switzerland
| | - Brigitte von Rechenberg
- Musculoskeletal Research Unit (MSRU),
Vetsuisse Faculty, University of Zurich, Zurich, Switzerland,Center for Applied Biotechnology and
Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering and Biofabrication,
Institute for Biomechanics, Swiss Federal Institute of Technology Zurich (ETH
Zurich), Zurich, Switzerland,Center for Applied Biotechnology and
Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland
| | - Salim E. Darwiche
- Musculoskeletal Research Unit (MSRU),
Vetsuisse Faculty, University of Zurich, Zurich, Switzerland,Center for Applied Biotechnology and
Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland,Salim Darwiche, Musculoskeletal Research
Unit (MSRU), Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260,
Zurich, CH-8057, Switzerland.
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6
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Carleton MM, Sefton MV. Promoting endogenous repair of skeletal muscle using regenerative biomaterials. J Biomed Mater Res A 2021; 109:2720-2739. [PMID: 34041836 DOI: 10.1002/jbm.a.37239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/14/2021] [Accepted: 05/18/2021] [Indexed: 02/06/2023]
Abstract
Skeletal muscles normally have a remarkable ability to repair themselves; however, large muscle injuries and several myopathies diminish this ability leading to permanent loss of function. No clinical therapy yet exists that reliably restores muscle integrity and function following severe injury. Consequently, numerous tissue engineering techniques, both acellular and with cells, are being investigated to enhance muscle regeneration. Biomaterials are an essential part of these techniques as they can present physical and biochemical signals that augment the repair process. Successful tissue engineering strategies require regenerative biomaterials that either actively promote endogenous muscle repair or create an environment supportive of regeneration. This review will discuss several acellular biomaterial strategies for skeletal muscle regeneration with a focus on those under investigation in vivo. This includes materials that release bioactive molecules, biomimetic materials and immunomodulatory materials.
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Affiliation(s)
- Miranda M Carleton
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Michael V Sefton
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
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7
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Qin H, Zhao A, Fu X. Chemical modulation of cell fates: in situ regeneration. Sci China Life Sci 2018; 61:1137-1150. [PMID: 30099708 DOI: 10.1007/s11427-018-9349-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 05/09/2018] [Indexed: 12/18/2022]
Abstract
Chemical modulation of cell fates has been widely used to promote tissue and organ regeneration. Small molecules can target the self-renewal, expansion, differentiation, and survival of endogenous stem cells for enhancing their regenerative power or induce dedifferentiation or transdifferentiation of mature cells into proliferative progenitors or specialized cell types needed for regeneration. Here, we discuss current progress and potential using small molecules to promote in vivo regenerative processes by regulating the cell fate. Current studies of small molecules in regeneration will provide insights into developing safe and efficient chemical approaches for in situ tissue repair and regeneration.
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Affiliation(s)
- Hua Qin
- Graduate School of Tianjin Medical University, Tianjin, 300070, China.,Cell Biology and Tissue Repair Laboratory, Key Laboratory of Wound Repair and Regeneration of PLA, the First Hospital Affiliated to the PLA General Hospital, Beijing, 100048, China
| | - Andong Zhao
- Graduate School of Tianjin Medical University, Tianjin, 300070, China.,Cell Biology and Tissue Repair Laboratory, Key Laboratory of Wound Repair and Regeneration of PLA, the First Hospital Affiliated to the PLA General Hospital, Beijing, 100048, China
| | - Xiaobing Fu
- Cell Biology and Tissue Repair Laboratory, Key Laboratory of Wound Repair and Regeneration of PLA, the First Hospital Affiliated to the PLA General Hospital, Beijing, 100048, China. .,College of Life Sciences, PLA General Hospital, PLA Medical College, Beijing, 100853, China.
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8
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Xing K, Fan R, Wang J, Zhang S, Feng K, Du X, Song Y, Wang P, Yang Y. Highly Stable and Regenerative Metal-Organic Framework Designed by Multiwalled Divider Installation Strategy for Detection of Co(II) Ions and Organic Aromatics in Water. ACS Appl Mater Interfaces 2017; 9:19881-19893. [PMID: 28534627 DOI: 10.1021/acsami.7b04265] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
MOF-based sensors capable of effectively and stably detecting toxic species in water have attracted huge attention in terms of improving environmental monitoring levels and water quality. Combining the flexibility of structure and modifying of pore surface, a multiwalled divider installation (MWDI) strategy is proposed and used for property enhancement. We herein report three metal-organic frameworks (MOFs) 1-3 based on a C3 symmetry organic phosphonic ligand with topology increased from 3,6-connected to 3,8-connected. Among them, MOFs 1 and 2 with remaining binding sites and large pores display lower luminescence response to Co2+ than does the applying standard. Guided by the MWDI strategy, 3 with high rigid framework and triple molecular installer divided rhombic pore was achieved under top-down topological analysis as anticipated, which endows high sensitivity and rapid response to Co2+, contributed by the synergy from free activated sites and appropriate pore and molecular dividing effect. Particularly, the high stability of 3 in boiling solvent and acid/base solutions has been evidenced and explained by structural robustness and kinetic inertness. Moreover, 3 shows excellent detection ability toward trinitrophenol (TNP) over other aromatic analytes in water, attributing to the predomination of energy transfers. Of note is that the used framework can be in situ regenerated into a fresh one. That provides a promising strategy to prepare effective and economic luminescent sensors in a predictable way for property modification.
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Affiliation(s)
- Kai Xing
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Ruiqing Fan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Jiaqi Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Siqi Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Kai Feng
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Xi Du
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Yang Song
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Ping Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
| | - Yulin Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin, Heilongjiang 150001, PR China
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9
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Abstract
Resident stem cell pools in many tissues/organs are responsible not only for tissue maintenance during physiologic turnover but also for the process of wound repair following injury. With inspiration from stem cell trafficking within the body under physiologic and pathologic conditions, recent advances have been made toward inducing stem cell mobilization and directing patients' own cells to sites of interest for treating a broad spectrum of diseases. An evolving body of work corroborates that delivering guidance cues can mobilize stem cells from the bone marrow and drive these cells toward a specific region. In addition, the transplantation of cell-friendly biomaterials incorporating certain biomolecules has led to the regeneration of lost/damaged tissue without the need for delivering cellular materials manipulated ex vivo. Recently, cell homing has resulted in remarkable biological discoveries in the laboratory as well as great curative successes in preclinical scenarios. Here, we review the biological evidence underlying in vivo cell mobilization and homing with the aim of leveraging endogenous reparative cells for therapeutic applications. Considering both the promise and the obstacles of this approach, we discuss how matrix components of the in vivo milieu can be modified to promote the native regenerative process and inspire future tissue-engineering design.
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Affiliation(s)
- Y Yin
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X Li
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X T He
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - R X Wu
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - H H Sun
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - F M Chen
- 1 State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi'an, China
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