Inflammation Flashcards

0
Q

Four inflammatory mediators of fever

A

IL1
TNF
IL6
PGE2

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1
Q

Name the 3 complement pathways

A

Classical
Alternative
Lectin

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2
Q

Cell types that contain Histamine granules

A

Mast Cell
Basophils
Platelets

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3
Q

Main receptor for Substance P

A

Neurokinin 1 receptor (NK-1R)

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4
Q

Which molecules are involved in the classical complement pathway?

A
C1q
C1r
C1s
C4
C2
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5
Q

What are the 3 main functions of complement?

A

Opsonization
Membrane Attack Complex formation
Enhanced Inflammation

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6
Q

Which molecules are involved in the alternative complement pathway?

A

Factor D
Factor B
Properdin
C3

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7
Q

Which molecules are involved in the Lectin complement pathway?

A
Mannose Binding Lectin
Ficolins
MBL- associated serine proteases-2 (MASP-2)
C4
C2
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8
Q

Which molecule is the anchor that initiates formation of the membrane attack complex?

A

C5b

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9
Q

Main Cytokines produced by TH1 cells

A

IFN-gamma

IL-2

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10
Q

TH1 cells direct which type of immunity?

A

Cell-mediated

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11
Q

TH2 cells direct which type of immunity?

A

Humoral

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12
Q

Which cytokines stimulates TH1 cells?

A

IL-12

IL-18

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13
Q

What stimulates TH2 cells?

A

IL-4

IL-10

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14
Q

Major signaling pathway for TH1 and TH2 cytokines

A

JAK/STAT

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15
Q

Signaling pathway for TH17 cytokines

A

Adapter protein ACT1
TNF receptor associated factor 6 (TRAF6)
Nuclear factor Kappa Beta (NFkB)

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16
Q

Major function of Type 1 Interferons

A

Anti-viral via JAK/STAT pathway

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17
Q

Major function of Type 2 Interferons

A

Induced Th1 & Th17 responses

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18
Q

Which chemokine is not produced by leukocytes? & effect

A

Fractalkine

(Produced by endothelium)

Monocyte chemotaxis

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19
Q

What is NFKB?

A

A protein that controls gene transcription
Activated in response to cytokines, cell injury, antigens
Controls Cytokine production and cell survival

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20
Q

TLR for LPS

A

TLR4

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21
Q

TLR for flagellin

22
Q

TLR for Bacterial/viral DNA

23
Q

TLR for viral ds RNA

24
Which interleukin stimulates differentiation to tissue repair macrophages
IL-4
25
Which interleukin stimulates differentiation into regulatory macrophages
IL-10
26
Which chemokine is responsible for dendritic cells homing to lymph nodes?
CCL21
27
Which molecule is expressed by mature dendritic cells
CCR7
28
Which are the major chemotactic molecules for eosinophils?
Eotaxin | IL-5
29
What are the major proteolytic enzymes produced by mass cells in chronic inflammation
Chymase | Tryptase
30
Which molecule is the key mediator of pain during inflammation?
PGE2
31
What is the major cofactor for an MMPs?
Zinc
32
Name the components of the basal lamina
Type IV collagen Laminin Entactin Perlecan
33
Receptors for angiopoietin 1
Tie2
34
Which inflammatory mediator inhibits differentiation of cells during wound healing?
NFKB
35
Which TH cell type is involved in Type 1 hypersensitivity reactions?
TH2
36
Main molecules for vascular remodelling
Ephrin B2 | Angiopoietin 2
37
CXC chemokines attract which type of cell?
Neutrophils
38
Molecules responsible for endothelial contraction that increases vasc. permeability
Histamine Bradykinin Leukotrienes
39
Most important antiproteases to limit leukocyte damage
a1-antitryspin (neutrophil elastase) | a2-Macroglobin
40
Which lymphocyte is crucial to acute inflammation?
TH17
41
Which complement proteins trigger Mast Cells degranulation?
C3a | C5a
42
Main cytokines produced by M2 macrophages
IL-10 | TGF-B
43
Role of Notch Signaling in angiogenesis
Regulates sprouting/branching
44
Most important cytokine for connected tissue deposition
TGF-B
45
MMP inhibitor
TIMPs
46
Enzyme that cleaves and releases extra cellular domains of various cytokines and growth factors
ADAMs
47
Major opsonins
C3b Manose-binding Lectin IgG
48
Major antioxidants
``` Superoxide dysmutase Catalase Glutathione peroxidase Ceruloplasmin Transferrin ```
49
Leukotriene for chemotaxis
LTB-4
50
Major regulator of alternative complement pathway and function
Factor H | Blocks C3 convertase
51
Inhibits JAK/STAT signalling
SOCS
52
Binding of which leukocyte molecule to which endothelium molecule is essential for firm adhesion to endothelium?
LFA1 on leukocyte to ICAM1 on endothelium
53
Annexin 1 function
Inhibits neutrophil recruitment | Promotes neutrophil apoptosis and phagocytosis by Macrophages