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A culture model to analyze the acute biomaterial-dependent reaction of human primary neutrophils in vitro

Bioactive materials 2023年第2期20卷 627-637页

作者： marinus A.Wesdorp Andrea Schwab Ezgi Irem Bektas Roberto Narcisi David Eglin martin j.Stoddart gerjo j.v.m.van osch matteo D’Este AO Research Institute Davos AO FoundationDavos PlatzSwitzerland Department of Orthopaedics and Sports medicine Erasmus MCUniversity Medical Center Rotterdamthe Netherlands mines Saint-Étienne Univ LyonUniv Jean MonnetINSERMU1059 SainbioseSaint-ÉtienneFrance Department of Biomaterials Science and Technology University of TwenteEnschedethe Netherlands Department of Otorhinolaryngology Erasmus MCUniversity Medical Center Rotterdamthe Netherlands Department of Biomechanical Engineering Faculty of MechanicalMaritimeand Materials EngineeringDelft University of Technologythe Netherlands Department of Oral and maxillofacial Surgery Erasmus MCUniversity Medical Center Rotterdamthe Netherlands

Neutrophils play a pivotal role in orchestrating the immune system response to biomaterials,the onset and resolution of chronic inflammation,and macrophage ***,the neutrophil response to biomaterials and the consequent impact on tissue engineering approaches is still scarcely ***,we report an in vitro culture model that comprehensively describes the most important neutrophil functions in the light of tissue *** isolated human primary neutrophils from peripheral blood and exposed them to a panel of hard,soft,naturally-and synthetically-derived *** overall trend showed increased neutrophil survival on naturally derived constructs,together with higher oxidative burst,decreased myeloperoxidase and neutrophil elastase and decreased cytokine secretion compared to neutrophils on synthetic *** culture model is a step to better understand the immune modulation elicited by *** studies are needed to correlate the neutrophil response to tissue healing and to elucidate the mechanism triggering the cell response and their consequences in determining inflammation onset and resolution.

关键词： inflammation healing culture

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Functionalized Hydrogels for Articular Cartilage Tissue Engineering

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Engineering 2022年第6期8卷 71-90页

作者： Liangbin Zhou Peng Guo matteo D’Este Wenxue Tong jiankun Xu Hao Yao martin j.Stoddart gerjo j.v.m.van osch Kevin Ki-Wai Ho Zhen Li Ling Qin musculoskeletal Research Laboratory of Department of Orthopaedics&Traumatology Faculty of MedicineThe Chinese University of Hong KongHong Kong 999077China Innovative Orthopaedic Biomaterials and Drug Translational Research Laboratory Li Ka Shing Institute of Health SciencesFaculty of MedicineThe Chinese University of Hong KongHong Kong 999077China AO Research Institute Davos DavosCH 7270Switzerland Innovation Platform of Regeneration and Repair of Spinal Cord and Nerve Injury Department of Orthopaedic SurgeryThe Seventh Affiliated Hospital of Sun Yat-sen UniversityShenzhen 518000China Department of Orthopaedics and Sports medicine&Department of Otorhinolaryngology Erasmus MCUniversity Medical CenterRotterdam 3000 CAthe Netherlands f Department of Biomechanical EngineeringDelft University of TechnologyDelft 2600 AAthe Netherlands Centre for Translational medicine Research and Development Shenzhen Institute of Advanced TechnologyThe Chinese Academy of SciencesShenzhen 518000China

Articular cartilage(AC)is an avascular and flexible connective tissue located on the bone surface in the diarthrodial *** defects are common in the knees of young and physically active *** of the lack of suitable tissue-engineered artificial matrices,current therapies for AC defects,espe-cially full-thickness AC defects and osteochondral interfaces,fail to replace or regenerate damaged carti-lage *** rapid research and development advancements in AC tissue engineering(ACTE),functionalized hydrogels have emerged as promising cartilage matrix substitutes because of their favor-able biomechanical properties,water content,swelling ability,cytocompatibility,biodegradability,and lubricating *** can be rationally designed and conveniently tuned to simulate the extracel-lular matrix of *** article briefly introduces the composition,structure,and function of AC and its defects,followed by a comprehensive review of the exquisite(bio)design and(bio)fabrication of func-tionalized hydrogels for AC ***,we summarize the challenges encountered in functionalized hydrogel-based strategies for ACTE both in vivo and in vitro and the future directions for clinical translation.

关键词： Articular cartilage Functionalized hydrogels Cartilage repair Cartilage tissue engineering Clinical translation

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Engineered biochemical cues of regenerative biomaterials to enhance endogenous stem/progenitor cells(ESPCs)-mediated articular cartilage repair

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Bioactive materials 2023年第8期26卷 490-512页

作者： Liangbin Zhou jietao Xu Andrea Schwa Wenxue Tong jiankun Xu Lizhen Zheng Ye Li Zhuo Li Shunxiang Xu Ziyi Chen Li Zou Xin Zhao gerjo j.v.mvan osch Chunyi Wen Ling Qin musculoskeletal Research Laboratory of Department of Orthopaedics and Traumatology&Innovative Orthopaedic Biomaterials and Drug Translational Research Laboratory of Li Ka Shing Institute of Health Sciences Faculty of MedicineThe Chinese University of Hong Kong999077Hong Kong SARChina Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic University999077Hong Kong SARChina Department of Orthopaedics and Sports medicine Erasmus MCUniversity Medical Center Rotterdam3015 GDRotterdamthe Netherlands Department of Oral and maxillofacial Surgery Erasmus MCUniversity Medical Center Rotterdam3015 GDRotterdamthe Netherlands Centre for Regenerative medicine and Health Hong Kong Institute of Science&InnovationChinese Academy of Sciences-CRMH999077Hong Kong SARChina Department of Biomedical Engineering Faculty of EngineeringThe Chinese University of Hong Kong999077Hong Kong SARChina Department of Otorhinolaryngology Erasmus MCUniversity Medical Center Rotterdam3015 GDRotterdamthe Netherlands Department of Biomechanical Engineering Faculty of MechanicalMaritime and Materials EngineeringDelft University of Technology(TU Delft)2600 AADelftthe Netherlands Centre for Translational medicine Research and Development Shenzhen Institute of Advanced TechnologyThe Chinese Academy of Sciences518000ShenzhenChina

As a highly specialized shock-absorbing connective tissue,articular cartilage(AC)has very limited self-repair capacity after traumatic injuries,posing a heavy socioeconomic *** clinical therapies for small-to medium-size focal AC defects are well-developed endogenous repair and cell-based strategies,including microfracture,mosaicplasty,autologous chondrocyte implantation(ACI),and matrix-induced ACI(mACI).However,these treatments frequently result in mechanically inferior fibrocartilage,low cost-effectiveness,donor site morbidity,and short-term *** prompts an urgent need for innovative approaches to pattern a pro-regenerative microenvironment and yield hyaline-like cartilage with similar biomechanical and biochemical properties as healthy native *** regenerative biomaterials can create a favorable local environment for AC repair without causing relevant regulatory and scientific concerns from cell-based treatments.A deeper understanding of the mechanism of endogenous cartilage healing is furthering the(bio)design and application of these ***,the utilization of regenerative biomaterials to magnify the repairing effect of joint-resident endogenous stem/progenitor cells(ESPCs)presents an evolving improvement for cartilage *** review starts by briefly summarizing the current understanding of endogenous AC repair and the vital roles of ESPCs and chemoattractants for cartilage *** several intrinsic hurdles for regenerative biomaterials-based AC repair are *** recent advances in novel(bio)design and application regarding regenerative biomaterials with favorable biochemical cues to provide an instructive extracellular microenvironment and to guide the ESPCs(***,migration,proliferation,differentiation,matrix production,and remodeling)for cartilage repair are ***,this review outlines the future directions of engineering the next-generation regenerative biomaterials toward ultim

关键词： Regenerative biomaterials Endogenous stem/progenitor cells(ESPCs) Articular cartilage(AC)repair Biochemical cues

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