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Samenvatting immunologie 9 $7.57   Add to cart

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Samenvatting immunologie 9

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Alles van hoofdstuk 9. cursus + ppt.

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  • February 15, 2022
  • 8
  • 2021/2022
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Immunologie
Inleiding


Antigen (Ag) Antilichaam (AL)


 Zorgt voor herkenning  Immunoglobuline (Ig)
lichaamsvreemde stof
 Antistof
 Virussen, bacteriën
 Antibody (Ab)

 Specifiek

 Polyklonale Ab

 Monoklonale Ab

 Binding, Ag-Ab complex

 Gemaakt door B-cellen

 Plasmacellen


 Parathoop v AL reageert met eptoop van ag. Dit is een polyklonaal anti-serum




Polyklonale antilichamen: te gelijk van structuur om te
fractioneren

Monoklonale antilichamen: isolatie van plasmacellen uit het
proefdier + fusie met myelomacellen tot hybridoma-cellen

productie van 1 antilichaam gericht tegen 1 epitoop (= 1
antigene deteminant)




1

, Hybridoomtechnologie = het proces om monoklonale antilichamen te produceren:

 Start met muis die ag heeft binnengekregen en reageert erop. De b-cellen w
plasmacellen, ze gaan de milt eruit halen en daaruit die plasmacellen extraheren.
De plasmacellen werden eruit gehaald en reageren met myelomacellen
(woekerende plasmacellen, vorm van kankercel)
 We laten ze fusioneren tot een hybridomacel. Deze kunnen we onderscheiden v
andere omdat we een specifiek medium gebruiken. (HAT)
 Dit kweken we op in HAT medium en de cellen dat interessant zijn voor ons zullen
we een cultuur gaan opzetten van deze waarin wij geïnteresseerd zijn
 C kan op 2 manieren bouwstenen vr DNA, RNA aanmaken: =novo synthese /
Salvage pathway

5 essentiële stappen:

1) Immunisatie
2) Isolatie plasmacel
3) Onsterfelijk maken v plasmacellen
4) Selecteren
5) Produceren




dUMP = deoxy uridine monophosphate

dTMP = deoxy thymidine monophosphate

TK = thymidine kinase

HGPRT = hypoxanthine guanine phosphoribosyl transferase

Antifolaat: blokkeert de normale weg (novo synthese) (ofwel thymidine en hypoxanthine uit medium2halen)

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