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陈 涛 姚康德(,300072) 组织工程采用可注射原位形成水凝胶,与预成型支架相比具有特定的优势:能填充任意形状的缺损,并在很大程度上降低植入对机体组织的侵入性,且能与各种治疗药物混合。本文介绍了可注射凝胶形成过程及几种水凝胶系统,并以实例说明可注射水凝胶在组织工程中的应用。 组织工程,可注射性,水凝胶 TQ314 A 1000-6613(2004)08-0827-05 ()(ECMs),,,,。ECMsECMs[1]。:、、、,、,。,,,[2,3]。:/,,。。1 各种水凝胶聚合物的原位形成。,。,。、pH、、、。。1.1 ,(LCST),LCST,。,、、。。[4]N-(NVP.BF4)N-(NIPAAm)。,,,;,,,,,。(PAAc)N,N-(PDMAAm)(IPN)。,,;,。[5,6]。LCST32℃,LCST,NIPAAm,;LCST,,。NIPAAmLCST,,LCST。--(PEO-PPO-PEO,PoloxamerPluronic)。,Poloxamer(-)[7,8]。Jeong[9,10]PEG-PLGA-PEG 2004-01-13; 2004-05-14。 (G1999054305)。 (1980—),,。E-mailbrucechen2008@163.com。。022-27404983。·827· 2004238 CHEMICALINDUSTRYANDENGINEERINGPROGRESS ,-30℃,-。Jeong[11]PEG-g-PLGAPLGA-g-PEG,,(37℃),。,、、、、、。40℃,。1.2 pHpH,,pH,,,。、、N,N-、pH。1.3 、,。。,(1-4)β-D-(M)α-D-(G),,。Ca2+、Mg2+、Ba2+、Sr2+G,。、、,。1.4 。,。。,1,4-1,3-N-,、。,,。、。,。,、,。2 可注射水凝胶在组织工程中的应用2.1 ,、,、[12]。Duranti[12]RestylaneTM。,。,。HylanB(HylaformTM),。Hallen[13]HylaformTM。HylaformTM,,,HylaformTM。Barbucci[14]50%。50%,,。,,,。2.2 [15]。Paige[16]。,。6,,,。Ⅱ,Ⅱ。Stevens[17]·828· 200423 ,。G。G,。,,/。,,。Atala[18](Vesicoureteralreflux),。。Atala。,。,,。,、。,。,,;。,。,。2.3 、,(1,4)-2--2--β-D-,。、。、。Chinete[19]β-,/,,。CH()β-GP(β-)CH+β-GP+β-TCP(β-),,。Klokkevold[20],,。Gutowska[21]。pHpH。/,。,,。,。。,/。GAGs,,,,,,。2.4 PEO-PPO-PEOPEO-PPO-PEO(PoloxamerPluronic)、,100014000。Poloxamer,,。Poloxamer407(PluronicF-127)37℃,。Poloxamer118,,[22]。Poloxamer407,Raymond[23]。3mL22%Poloxamer,。,,Poloxamer407,。,。,,,,。2.5 (PNIPAAm)Webb[24]Jasionowski[25](--),,。。·829· 8 : Yamazaki[26]PNIPAAm。PNIPAAm,32℃,32℃,,。,,,Yamazaki,,,,,。Yamazaki。、,NIPAAm。2.6 PEOPEO。Sims[27]PEO(20~100K)。PEO,。,PEO。PEO。Sims[27]PEO,6。。Masson,DNA。[28],。L-929,;,;,。,,。、、,。PEO,,,;PEO,。3 结 语,、、,。(1),,,。,。(2),。、、[29,30],。,[31]。、。,。1KimBS,MooneyDJ.[J].TrendsinBiotech.,1998,16:224~2252LangerRS,VacantiJP.[J].Science,1993,260:920~9263LangerRS,VacantiJP.[J].ScientificAmerican,1999,280:62~654,,.[J].,1998,2:236~2395ZhangXZ,WuDQ,ChuCC.[J].Biomaterials,2004,25:3793~38056LiangL,FengXD,LoniP.[J].JournalofMembrance,1999,162:235~2467MalmstenM,LindmanB.[J].Macromolecule,1992,25:5446~54508HoffmanAS.[J].AdvancedDrugDeliveryReviews,2002,43:3~129JeongB,BaeYH,KimSW.[J].Macromolecules.,1999,32:7064~706910JeongB,BaeYH,KimSW.[J].Biomed.Mater.,2000,50:171~17711JeongB,KibbeyMR,BirnbaumJC,etal.[J].Macromole-cules,2000,33:8317~8322·830· 200423 12DurantiF,SaltiG,BovaniB,etal.[J].Dermatol.Surg.,1998,24:1317~132513HallenL,JohanssonC,LaurentC.[J].ActaOtolaryngol.(Stockh),1999,119:107~11114BarbucciR,LamponiS,BorzacchoelloA,etal.[J].Bioma-terials,2002,23:4503~451315VacantiCA,LangerR,SchlooB,etal.[J].Plast.Reconstr.Surg.,1991,88:753~75816PaigeKT,CimaLG,YaremchukMJ,etal.[J].Plast.Reconstr.Surg.,1995,96:1390~140017StevensMM,OanadiloHF,LangerR,etal.[J].Biomaterials,2004,25:887~89418AtalaA,CimaLG,KimW,etal.[J].Urol.,1993,150:745~74719ChineteA,ChaputC,WangD,etal.[J].Biomaterials,2000,21:2155~216120KlokkevoldPR,VandemarkL,KenneyEB,etal.[J].J.Peridontol.,1996,67:1170~117521GutowskaA,SongL,ArmstrongBL,etal.[J].Trans.Soc.Biomat.,1998,21:45022KellyRF.[J].Thromb.Thrombolysis,1998,5:239~24723RaymondJ,MetcalfeA,SalazkinI,etal.[J].Biomaterials,2004,25:3983~398924WebbD,AnYH,GutowskaA,etal.[J].OrthopedJ.MUSCOrthopedSurg.,2000,3:18~2225JasionowskiM,MerkillieM,ChrislerWB,etal.[J].Trans.Soc.Biomat.,2001,24:56626YamazakiM.[J].Biotech.Bioeng.,1994,44:3827SimsCD,ButlerP,CasanovaR,etal.[J].Plast.Reconstr.Surg.,1996,95:843~85028,,.[J].,2000,18(2):114~11729ChicurelME,ChenCS,IngberDE.[J].Curr.Opin.CellBiol.,1998,10:232~23930KimBS,NikolovskiJ,MooneyDJ,etal.[J].Nat.Biotech.,1999,17:979~98331LeeKY,PetersMC,AndsersonKW,etal.[J].Nature,2000,408:998~1000AdvancesinInjectableHydrogelsforTissueEngineeringChenTao,YaoKangde(ResearchInstituteofPolymericMaterials,TianjinUniversity,Tianjin300072)Abstract Recently,intissueengineeringinjectable,insitugelformingsystemswhichreduceinvasionofimplantationtohosttissuestothefullextenthavebeenreported.Thegelationprocesses,severalinjectablehydrogelsthatexhibitinsitugelformingatphysiologicalconditionsandapplicationsofselectedinjectablehydrogelsintissueengineeringarereviewed.Keywords tissueengineering,injectable,hydrogel(编辑 胡晓丹)·拟建和在建化工项目· ::60::2005-2006:24000:():、、、、。:60。 ::8::2004-2005:15000::、、、、、、。:8。(以上信息由北京华信捷投资咨询公司提供。联系电话:010-68570774,68570776;网址://)·831· 8 :
本文标题:可注射水凝胶在组织工程中应用进展_陈涛
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