exam 2 lecture 14 part 2 Flashcards

1
Q

cascade effect outcomes

A

upregulation and/or downregulation resulting in production of cytokines

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2
Q

cascade effect increases the number of what and suppresses what

A

increase surface receptors and suppresses their own effect by feedback inhibition

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3
Q

macrophage release of what induced lymphocyte migration

A

chemokines

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4
Q

what produced antibodies

A

Bcell development and gene recombination

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5
Q

T/F expression of cytokine and cytokine receptors is highly regulated

A

true

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6
Q

what 3 pathways does the gamma chain activate

A

the PI 3-K-Akt pathway, the RAS-MAPK, and the JAK-STAT

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7
Q

the gamma chain regulates what

A

the development, survival, proliferation, differentiation and or function of multiple immune cell types

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8
Q

what shape is the IL-6

A

helical

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9
Q

IL-6 subunits

A

gamma chain, gp130 and the IL-6 R alpha chain

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10
Q

what secretes IL-6

A

macrophages and other cells

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11
Q

what does IL-6 stimulate

A

acute phase protein synthesis, production of neutrophils, regulates inflammation

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12
Q

what diseases are IL-6s involved in

A

rheumatoid arthritis, multiple sclerosis, systemic lupus, prostate cancer, and multiple myeloma

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13
Q

what role does IL-6 have in cancer

A

chronic inflammation and in regulating tumor microenvironments and metastasis

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14
Q

what drugs are progressing for anti-IL-6

A

taclizumab and sarilumab for rheumatoid arthritis
siluximab for castleman disease

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15
Q

what is thought to be a central mediator of physiologic changes induced by allergic inflammation

A

IL-13

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16
Q

what biological effect does IL-13 have

A

anti-inflammatoryby inducing metalloproteinases to protect against allergic inflammation

17
Q

what are the receptors for IL-13

A

heterodimer complex of IL-4Ralpha and IL-13R1

18
Q

what are the target cells for IL-13

A

airway fibroblasts, gut

19
Q

what does IL-13 signal through

A

STAT6

20
Q

what does IL-13 differentiate into

A

Th2- T helper cells

21
Q

IL-13 antibody target drug dupilumab for treatment of

A

asthma

22
Q

IL-17A receptors are

A

heterotrimer IL-17RA/IL-17RC, type 1

23
Q

IL-17A target cells

A

macrophage, T cells, endothelial cells, fibroblasts

24
Q

IL-17A is beneficial against

A

infection from bacteria and fungi

25
Q

why is IL-17 detrimental

A

expressed in chronic inflammatory diseases, asthma, COPD, dampens anti-tumor immunity

26
Q

IL-17A anti-drug

A

secukinumab against psoriasis

27
Q

IL-23 pathways

A

Jak2, STAT3/4, expression of IL-17

28
Q

TNFalpha receptors

A

cysteine rich domains, TNFR1 and TNFR2

29
Q

TNFR1 domains are expressed on and for

A

most cells, proinflammatory and apoptotic

30
Q

TNFR2 domains are expressed on and for

A

endothelial, epithelial and some immune cells; antinflammatory and promotes cell proliferation

31
Q

TNFalpha pathway

A

NF-kB or MAPK

32
Q

cGMP is a second messenger inducing

A

muscle relaxation and vasodilation