Waa maxay Injineerinka Ka-hortagga Jirka?

Iyada oo la kaashanayo injineernimada antibody-ga, waxaa suurtogal noqotay in wax laga beddelo cabbirka molecular-ka, farmasokinetics-ka, difaaca jirka, isku xidhnaanta isku xidhka, gaar ahaanshaha iyo shaqada wax-ku-oolka ah ee antibody-yada. Ka dib marka la sameeyo antibody-yada, isku xidhka gaarka ah ee antibody-yada ayaa ka dhigaya kuwo aad qiimo u leh baaritaanka caafimaad iyo daaweynta. Iyada oo loo marayo injineernimada antibody-ga, waxay dabooli karaan baahiyaha daawada iyo horumarinta hore ee ogaanshaha.

Ujeedada injineernimada antibody-ga waa in la naqshadeeyo oo la soo saaro shaqooyin aad u gaar ah oo deggan oo antibody-yada dabiiciga ah aysan gaari karin, taasoo saldhig u ah soo saarista antibody-yada daaweynta.

Alpha Lifetech, oo leh khibrad ballaaran oo mashruuceeda injineernimada antibody-ga, waxay bixin kartaa adeegyo antibody monoclonal iyo polyclonal ah oo loogu talagalay noocyo badan, iyo sidoo kale dhismaha maktabadda antibody-ga bandhigga phage iyo adeegyada baaritaanka. Alpha Lifetech waxay macaamiisha siin kartaa antibody-yo tayo leh oo biosimilar ah iyo alaabada borotiinka dib-u-habaynta, iyo sidoo kale adeegyo u dhigma, si loo soo saaro antibody-yo hufan, aad u gaar ah, iyo xasilloon. Annagoo adeegsanayna antibody dhammaystiran, goobaha borotiinka iyo nidaamyada bandhigga phage, waxaanu bixinaa adeegyo daboolaya kor iyo hoos u socodka wax soo saarka antibody-ga, oo ay ku jiraan adeegyada farsamada sida humanization antibody-ga, nadiifinta antibody-ga, taxanaha antibody-ga, iyo xaqiijinta antibody-ga.

Marxaladda hormuudka ah ee injineernimada antibody-ga waxay la xiriirtaa laba teknooloji:

--Tiknoolajiyadda DNA-da ee dib loo isku daray

--Tiknoolajiyadda Hybridoma

Horumarka degdegga ah ee injineernimada antibody-ga wuxuu la xiriiraa saddex teknooloji oo muhiim ah:

--Tiknoolajiyada cloning-ka hidde-sideyaasha iyo falgalka silsiladda polymerase

--Tilmaamaha Borotiinnada: Borotiinnada dib loo isku daray waxaa soo saara nidaamyada muujinta sida khamiirka, fayrasyada qaabaysan usha, iyo dhirta

-- Naqshadeynta qaab-dhismeedka ee ka caawisa kombiyuutarka

Jiilkii ugu horreeyay ee unugyada difaaca jirka ayaa loo sameeyay bini'aadam si loo soo saaro unugyada difaaca jirka ee chimeric, halkaas oo gobolka isbeddelka leh ee unugyada difaaca jirka ee monoclonal jiirka uu ku xirnaa gobolka joogtada ah ee molecules-ka IgG ee aadanaha. Gobolka isku xidhka antigen-ka (CDR) ee unugyada difaaca jirka ee monoclonal jiirka ee jiilka labaad ayaa lagu tallaalay IgG-ga aadanaha. Marka laga reebo gobolka CDR, dhammaan unugyada difaaca jirka ee kale waa ku dhawaad ​​​​unugyada difaaca jirka ee aadanaha, waxaana la sameeyay dadaallo lagu doonayo in laga fogaado kicinta jawaabaha antibody-ga ka hortagga jiirka ee aadanaha (HAMA) marka la isticmaalayo unugyada difaaca jirka ee jiirka ee daaweynta aadanaha.

 

Si loo dhiso maktabad bandhig fage ah, tallaabada ugu horreysa waa in la helo hiddo-sidayaasha qeexaya unugyada difaaca jirka, kuwaas oo laga sooci karo unugyada B ee xayawaanka la tallaalay (dhismaha maktabadda difaaca jirka), si toos ah looga soo saaro xayawaanka aan la tallaalin (dhismaha maktabadda dabiiciga ah), ama xitaa lagu soo ururiyo in vitro iyadoo la adeegsanayo jajabyada hiddo-sidayaasha difaaca jirka (dhismaha maktabadda synthetic). Kadib, hiddo-sidayaasha waxaa lagu xoojiyaa PCR, waxaana lagu shubaa plasmids, waxaana lagu muujiyaa nidaamyada martida ee ku habboon (muujinta khamiirka (badanaa Pichia pastoris), muujinta prokaryotic (badanaa E. coli), muujinta unugyada naasleyda, muujinta unugyada dhirta, iyo muujinta unugyada cayayaanka ee ku dhaca fayrasyada usha u eg). Kuwa ugu badan waa nidaamka muujinta E. coli, kaas oo isku daraya taxane gaar ah oo antibody ah oo ku jira fage-ka oo ku dhejiya mid ka mid ah borotiinka qolofka fage-ka (pIII ama pVIII). Isku-darka hiddo-sidayaasha, Oo lagu soo bandhigay dusha sare ee bakteeriyada. Xudunta tignoolajiyadani waa in la dhiso maktabad bandhig fage ah, taas oo leh faa'iidada maktabadaha dabiiciga ah maadaama ay yeelan karto isku-xidh gaar ah. Dabadeed, unugyada difaaca jirka ee leh gaarnimada antigen-ka ayaa lagu baaraa habka xulashada bayoolojiga, antigen-yada bartilmaameedka ah waa la hagaajiyaa, fajiyada aan xidhnayn si isdaba joog ah ayaa loo dhaqaa, fajiyada xidhana waa la dhaqaa si loo sii kobciyo. Saddex ama in ka badan oo wareeg ah oo ku celcelin ah ka dib, gaarnimada sare iyo difaaca jirka ee isku xidhka sare ayaa la go'doomiyaa.

Jaantuska 3: Dhismaha iyo Baaritaanka Maktabadda Ka-hortagga Jirka

Tiknoolajiyadda DNA-da ee dib loo habeeyay ayaa loo isticmaali karaa in lagu soo saaro jajabyo antibody ah. Unugyada difaaca jirka ee Fab waxaa marka hore lagu milmi karaa oo keliya protease-ka caloosha si loo soo saaro 2 jajab (Fab '), kuwaas oo markaa lagu dheefshiido papain si loo soo saaro jajabyo Fab ah oo shaqsi ah. Qaybta Fv waxay ka kooban tahay VH iyo VL, kuwaas oo leh xasillooni liidata sababtoo ah maqnaanshaha isku-xidhka disulfide. Sidaa darteed, VH iyo VL waxay isku xiran yihiin iyada oo loo marayo peptide gaaban oo ah 15-20 amino acids si loo sameeyo unugyo isku-dhafan oo hal silsilad ah (scFv) ah oo leh miisaan molecular ah oo qiyaastii ah 25KDa.

Daraasadda qaab-dhismeedka antibody-ga ee Camelidae (Camel, LIama, iyo Alpaca) waxay caddeysay in antibody-yadu ay leeyihiin silsilado culus oo keliya oo aysan lahayn silsilado fudud, sidaas darteed waxaa loogu yeeraa antibody-yada silsiladaha culus (hcAb). Qaybta kala duwan ee antibody-yada silsiladaha culus waxaa loo yaqaan antibody-yada hal-domain ama nanobodies ama VHH, oo leh cabbir dhan 12-15 kDa. Iyagoo ah monomers, ma laha xiriir disulfide ah waxayna aad u deggan yihiin, iyagoo aad u jecel antigen-yada.

Jaantuska 5: Antibody-ga Silsiladda Culus iyo VHH/ Nanobody

Muujinta xorta ah ee unugyada waxay isticmaashaa muujinta DNA-da dabiiciga ah ama tan macmalka ah si loo gaaro isku-darka borotiinka in vitro, badanaa iyadoo la adeegsanayo nidaamka muujinta E. coli. Waxay si dhakhso ah u soo saartaa borotiinnada waxayna ka fogaataa culeyska dheef-shiid kiimikaadka iyo sunta cytotoxic ee unugyada marka ay soo saaraan xaddi badan oo borotiinno dib-u-habeyn ah in vivo. Waxay sidoo kale soo saari kartaa borotiinno ay adag tahay in la sameeyo, sida kuwa ay adag tahay in wax laga beddelo ka dib tarjumaadda ama sameynta borotiinnada xuubka.