chap 8 autres récepteurs membranaires Flashcards

(19 cards)

1
Q

Structure R-TNF (Tumor Necrosis Factor)

A

Homotrimétriques = R-TNF, R-Fas, R-CD40
Couplage avec prot adaptatrices : TRAF, TRADD, FADD
Voies : MAPK (transcription), Caspases (apoptose)

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2
Q

Médiateurs famille du TNF

A

TNFa, lymphotoxine a + b, CD40/Fas ligand

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3
Q

Infliximab

A

AC anti-TNFa = Maladies inflammatoires (PR, psoriasis, Crohn)

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4
Q

etanercept

A

récepteur soluble TNFa = Maladies inflammatoires (PR, psoriasis, Crohn)

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5
Q

tasonermine

A

TNFa recombinant = Sarcome des tissus mous des membres

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6
Q

AC anti-TNFa

A

Infliximab = Maladies inflammatoires (PR, psoriasis, Crohn)

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7
Q

récepteur soluble TNFa

A

etanercept= Maladies inflammatoires (PR, psoriasis, Crohn)

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8
Q

TNFa recombinant

A

tasonermine= Sarcome des tissus mous des membres

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9
Q

R-RANK (Receptor Activator of NFkB

A

RANK-L (cellule 1) - R-RANK (c2) -> Prot adaptatrice TRAF 6 -> NFkB = Différenciation en ostéoclastes = Résorption osseuse

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10
Q

dénosumab

A

AC anti-RANK-L = ostéoporose

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11
Q

AC anti-RANK-L

A

dénosumab= ostéoporose

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12
Q

Intégrines = récepteurs adhérence cellulaire

A

hétérodimères = chaine a et b
interaction avec prot intracellulaires : prot cytosquelette, adaptatrice (praxilline), TK cyto de famille FAK

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13
Q

ACtivation voie intégrines par :

A

Interaction prot-prot: prot membranaires (Ig-CAM), matrice extra-c (collagène, élastine)

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14
Q

intégrine : aiibB3

A

récepteur du fibrinogène = agrégation plaquettaire

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15
Q

antagoniste R-aiibB3

A

tirofiban = anti-agrégants plaquettaires (fluidifie le sang)

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16
Q

intégrine : a4B1

A

L, granulocytes = défense organisme / inflammation

17
Q

intégrine : a4B7

A

LTh = défense organisme / inflammation

18
Q

natalizumab

A

AC anti-a4B1
= SEP, Crohn, rectocolites

19
Q

védolizumab

A

AC anti-a4B7
= SEP, Crohn, rectocolites