
Description
Mannosereceptortargetingbymannosylatedliposomeshasbeendemonstratedforavarietyofmannosylatedlipidconjugatesinavarietyofliposomemorphologiesandcompositionsinseveraldifferent invitro and invivo models.Thereareseveralpublicationsusingahydrophobicderivativeofmannose(4-aminophenylα-D-mannopyranoside) ratherthanusingamannosylatedlipidinClodronateliposomes.Thisismainlyduetothehighcostandcomplexityofsynthesizingandconjugatingmannosetolipid. 4-aminophenylα-D-mannopyranosideiscommerciallyavailableandfarlessexpensivethansynthesizingmannoseconjugatedlipid.
Whymannose?Mannoseisoneofthecarbohydratecomponentsofmanybacterialandviralcellsurfaces;therefore,theever-efficient,highlyredundantimmunesystemhasevolvedmultiplemechanismsforidentifyingpathogensbasedonmannoserecognition.Theanimalandplantkingdomslikewiseutilizecarbohydraterecognitionsignalingmechanismsincludingmannoseresidues.Manypublicationsevaluateothercarbohydratesastargetingmechanismsforvariouscelltypes,howevermannosetargetingtophagocytesappearstobeoneofthemorespecificmechanismsidentifiedtodate.Mammaliancellsurfaceidentificationmoleculesbasedonmannosebinding,suchastheICAMfamilyofleukocyteadhesionmolecules,targettheSIGNfamilyofmannosereceptorstoaccomplishself-recognition invivo.
Awell-knownandcitedstudybyUmezawa&Eto[1]demonstratesthatliposomescontainingaminophenylmannosideweremostefficientlyincorporatedintothemousebrainacrossthebloodbrainbarrier.TherADIolabeledliposomesbearingaminophenyl
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一、免疫组化试剂盒一般包括:
1、特异性的一抗
2、免疫组化检测系统。
3、有的同时还具备显色系统。
二、不同的公司内容有差别,所以购买时一定了解清楚:
1、一抗是做人的还是兔、鼠的组织;
2、检测系统是ABC/SP/非生物素/其他;
3、试剂盒的内容都有什么?有没有显色系统?
4、如果没有,自己根据前面的检测系统需配哪个显色系统。(其他的辅助试剂如PBS缓冲液、抗原修复液等一般另卖或自配)
三、免疫组化抗体即指特异性一抗,是用来标记的指标,免疫组化过程的其他试剂一律另外配备。
另外:做实验时,如遇出结果困难,记得做阳性片对照,敢于怀疑检测系统或显色系统的问题。
用双氧水去除过氧化物酶时,我是自己配的3%双氧水滴到片上而非将片浸入双氧水,这样可否?
用博士德的DAB染色,配制方法为:1mlH20中加入DAB、H2O2、TBS各一滴,我配制的时候发现将DAB加入H20时很容易沉淀,要震荡才能混匀,且将配好的DAB滴到玻片上时,DAB会结为很小块的微颗粒悬浮在液体中但并不染色,是否DAB有问题?
现在打算换中衫的试剂盒,代理商说中衫的试剂盒包括了二抗和DAB,想请教一下该试剂盒的具体内容有些什么?
万分感谢!
上海好多的供应商的,具体还是看你选择了,其实试剂盒产品都差不多,什么远慕生物,古朵生物...好多的额