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Samenvatting H8 Inflammatie

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H8 inflammatie zelfgeschreven cursus/samenvatting !! best in bundel te kopen

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8 Inflammatie
Inflammatiereactie = de reactie v/h IM op bedreiging


Immuun respons:
onmiddelijk Pathogen invadeerd pathogeen herkend dr pathogen
aangeboren respons klare effector geëlimineerd en
moleculen en cellen in herstel
0-4h
het geïnfecteerde
weefsel

Of
geïnduceerd aangeboren Activatie in pathogeen herkend pathogen
respons geïnfecteerd weefsel + dr effector geëlimineerd
aanwerving effector
4h - 4 dagen moleculen en cellen en herstel
cellen in het geïnfecteerde
Inflammatie, koorts, weefsel
acute-fase antwoord

Of B en T cellen antilichamen

Specifiek secondair pathogen- reactieve B prolifereren en effecot T
respons lymfoïd weefsel en T cellen w en w cellen gaan
in de buurt w geïdentificeerd in het effector nr infectie
typsich 1 week
gealarmeerd secundair lymfoïd cellen
weefsel



Indien het laatste niet werkt sterft de gastheer van acute infectie of lijdt aan ziekte ten gevolge van
chronische infectie
→ het immuunrespons is meestal verantw vr symptomen bv faryngitis, zo ook ouderen met zware
infecties maar weinig symptomen; GOF mutatie: kind geboren met cst actieve inflammasoom
//neonatale sepsis


Aangeboren immuun systeem AIS Adaptief/Specifiek immuun systeem SIS
macrofagen en neutrofielen, NK cellen, interferon B en T cellen
en complement na 1 week
begin
vele selectieve specifiteiten
beperkte specifiteit



8 Inflammatie 1

, constant geheugen cellen
Defect → koorts w gevolgd dr septische shock defect = SCID → kind krijgt cst infecties en
binnen 24h geneest niet, na 18 maand is AIS uitgeput en
Herkenning: weefselstress? overlijdt het
pathogeen/commensaal?pollen/pathogeen?… herkenning: zelf of niet-zelf?

Bepaalt of er immuunreactie komt




(chronische IF → weefselchade)


Pathogeen weefselschade
exotoxine: gesecreteerd dr pathogeen bv cholera
endotoxine: komt vrij bij doden pathogeen bv. LPS

direct cytopathisch effect: lytische cyclus bv influenza


→ compartimentalisatie

EC EC IC IC
IS, bloed, etc epitheliale opp cytoplasma vesiculair
viri, bac, protozoa, wormen, gonorrhea virussen, protozoa bacteriën
fungi, wormen
antimicrobriële NK cellen, lysosomiale
complement, peptiden en interferons, killing/macrofagen,
macrofagen, wandversterkende autofagie autofagie
neutrofielen cytokines


Pathogeenherkenning AIS

Positieve herkenning
= directe herkenning v/h pathogeen
herkent PAMPs (pathogeen geassocieerde moleculaire patronen) via PPR (pattern-recognition
receptors

bv lipopolysacharide LPS (gramneg), peptidoglycanen (grampos)

Negatieve herkenning



8 Inflammatie 2

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