As we navigate the transition from the Fourth to the Fifth Industrial Revolution,the emerging fields of biomanufacturing and biofabrication are transforming life sciences and healthcare.These sectors are benefiting fr...As we navigate the transition from the Fourth to the Fifth Industrial Revolution,the emerging fields of biomanufacturing and biofabrication are transforming life sciences and healthcare.These sectors are benefiting from a synergy of synthetic and engineering biology,sustainable manufacturing,and integrated design principles.Advanced techniques such as 3D bioprinting,tissue engineering,directed assembly,and self-assembly are instrumental in creating biomimetic scaffolds,tissues,organoids,medical devices,and biohybrid systems.The field of biofabrication in the United Kingdom and Ireland is emerging as a pivotal force in bioscience and healthcare,propelled by cutting-edge research and development.Concentrating on the production of biologically functional products for use in drug delivery,in vitro models,and tissue engineering,research institutions across these regions are dedicated to innovating healthcare solutions that adhere to ethical standards while prioritising sustainability,affordability,and healthcare system benefits.展开更多
The immune system protects organisms against endogenous and exogenous harm and plays a key role in tissue development,repair and regeneration.Traditional immunomodulatory biologics exhibit limitations including degrad...The immune system protects organisms against endogenous and exogenous harm and plays a key role in tissue development,repair and regeneration.Traditional immunomodulatory biologics exhibit limitations including degradation by enzymes,short half-life and lack of targeting ability.Encapsulating or binding these biologics within biomaterials is an effective way to address these problems.Hydrogels are promising immunomodulatory materials because of their prominent biocompatibility,tuneability and versatility.However,to take advantage of these opportunities and optimize material performance,it is important to more specifically elucidate,and leverage on,how hydrogels affect and control the immune response.Here,we summarize how key physical and chemical properties of hydrogels affect the immune response.We first provide an overview of underlying steps of the host immune response upon exposure to biomaterials.Then,we discuss recent advances in immunomodulatory strategies where hydrogels play a key role through(i)physical properties including dimensionality,stiffness,porosity and topography;(ii)chemical properties including wettability,electric property and molecular presentation;and(iii)the delivery of bioactive molecules via chemical or physical cues.Thus,this review aims to build a conceptual and practical toolkit for the design of immune-instructive hydrogels capable of modulating the host immune response.展开更多
Hydrogel wound dressings can play critical roles in wound healing protecting the wound from trauma or contamination and providing an ideal environment to support the growth of endogenous cells and promote wound closur...Hydrogel wound dressings can play critical roles in wound healing protecting the wound from trauma or contamination and providing an ideal environment to support the growth of endogenous cells and promote wound closure.This work presents a self-assembling hydrogel dressing that can assist the wound repair process mimicking the hierarchical structure of skin extracellular matrix.To this aim,the co-assembly behaviour of a carboxylated variant of xyloglucan(CXG)with a peptide amphiphile(PA-H3)has been investigated to generate hierarchical constructs with tuneable molecular composition,structure,and properties.Transmission electron microscopy and circular dichroism at a low concentration shows that CXG and PA-H3 co-assemble into nanofibres by hydrophobic and electrostatic interactions and further aggregate into nanofibre bundles and networks.At a higher concentration,CXG and PA-H3 yield hydrogels that have been characterized for their morphology by scanning electron microscopy and for the mechanical properties by smallamplitude oscillatory shear rheological measurements and compression tests at different CXG/PAH3 ratios.A preliminary biological evaluation has been carried out both in vitro with HaCat cells and in vivo in a mouse model.展开更多
基金supported by the W.D.Armstrong Trust.YYSH is funded by the European Research Council(ERC-St G,758865)the UK Research and Innovations(UKRI)Biotechnology and Biological Sciences Research Council(BB/W014564/1)+9 种基金funding from a UKRI Future Leaders Fellowship(MR/V024965/1)supported by the BBSRC London Interdisciplinary Doctoral(LIDo)Programmethe funding support of EPSRC(EP/W004860/1,EP/X033686/1)and MRC(MR/V029827/1,MR/W030381/1)the European Research Council(Pro Li Cell,772462)for supportthe NIHR Nottingham Biomedical Research Centre,University of Nottingham,Nottingham,UK and the AO Foundation,AO CMF(AOCMF-21-04S)funding support from grant MR/W01470X/1the EPSRC(EP/W018977/1)for financial supportfunding from the EPSRC(EP/T020792/1)funding from Biomat DB+(Horizon Europe 101058779)funding received from Science Foundation Ireland(SFI)—Grant No.13/RC/2073_P2。
文摘As we navigate the transition from the Fourth to the Fifth Industrial Revolution,the emerging fields of biomanufacturing and biofabrication are transforming life sciences and healthcare.These sectors are benefiting from a synergy of synthetic and engineering biology,sustainable manufacturing,and integrated design principles.Advanced techniques such as 3D bioprinting,tissue engineering,directed assembly,and self-assembly are instrumental in creating biomimetic scaffolds,tissues,organoids,medical devices,and biohybrid systems.The field of biofabrication in the United Kingdom and Ireland is emerging as a pivotal force in bioscience and healthcare,propelled by cutting-edge research and development.Concentrating on the production of biologically functional products for use in drug delivery,in vitro models,and tissue engineering,research institutions across these regions are dedicated to innovating healthcare solutions that adhere to ethical standards while prioritising sustainability,affordability,and healthcare system benefits.
基金supported by the ERC Proof-of-Concept Grant(MINGRAFT),the AO Foundation Grant(AOCMF-17-19M)the Medical Research Council(UK Regenerative Medicine Platform Acellular/Smart Materials-3D Architecture,MR/R015651/1)+2 种基金the National Natural Science Foundation of China(81870741,82001023),China Postdoctoral Science Foundation(2019M661177)Natural Science Foundation of Liaoning Province(2020-MS-154)China Scholarship Council([2020]50).
文摘The immune system protects organisms against endogenous and exogenous harm and plays a key role in tissue development,repair and regeneration.Traditional immunomodulatory biologics exhibit limitations including degradation by enzymes,short half-life and lack of targeting ability.Encapsulating or binding these biologics within biomaterials is an effective way to address these problems.Hydrogels are promising immunomodulatory materials because of their prominent biocompatibility,tuneability and versatility.However,to take advantage of these opportunities and optimize material performance,it is important to more specifically elucidate,and leverage on,how hydrogels affect and control the immune response.Here,we summarize how key physical and chemical properties of hydrogels affect the immune response.We first provide an overview of underlying steps of the host immune response upon exposure to biomaterials.Then,we discuss recent advances in immunomodulatory strategies where hydrogels play a key role through(i)physical properties including dimensionality,stiffness,porosity and topography;(ii)chemical properties including wettability,electric property and molecular presentation;and(iii)the delivery of bioactive molecules via chemical or physical cues.Thus,this review aims to build a conceptual and practical toolkit for the design of immune-instructive hydrogels capable of modulating the host immune response.
基金support of the ERC Starting Grant(STROFUNSCAFF)the UK Regenerative Medicine Platform(UKRMP2)Acellular/Smart Materials.C.D.acknowledges the support of University of Palermo FFR 2018/2021.
文摘Hydrogel wound dressings can play critical roles in wound healing protecting the wound from trauma or contamination and providing an ideal environment to support the growth of endogenous cells and promote wound closure.This work presents a self-assembling hydrogel dressing that can assist the wound repair process mimicking the hierarchical structure of skin extracellular matrix.To this aim,the co-assembly behaviour of a carboxylated variant of xyloglucan(CXG)with a peptide amphiphile(PA-H3)has been investigated to generate hierarchical constructs with tuneable molecular composition,structure,and properties.Transmission electron microscopy and circular dichroism at a low concentration shows that CXG and PA-H3 co-assemble into nanofibres by hydrophobic and electrostatic interactions and further aggregate into nanofibre bundles and networks.At a higher concentration,CXG and PA-H3 yield hydrogels that have been characterized for their morphology by scanning electron microscopy and for the mechanical properties by smallamplitude oscillatory shear rheological measurements and compression tests at different CXG/PAH3 ratios.A preliminary biological evaluation has been carried out both in vitro with HaCat cells and in vivo in a mouse model.
