Helper CD4+ T cells Flashcards

1
Q

Th1 polarized by?

A

IL-12, IL-18, IFN-gamma

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2
Q

Th2 polarized by?

A

IL-4

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3
Q

Th17 polarized by?

A

IL-1, IL-6, IL-23, TGF-beta

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4
Q

Treg polarized by?

A

IL-2, TGF-beta

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5
Q

Tfh polarized by?

A

IL-6, IL-21

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6
Q

Th1 effector cytokines made?

A

INF-gamma, TNF-beta

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7
Q

Th2 effector cytokines made?

A

IL-4, IL-5, IL-13

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8
Q

Th17 effector cytokines made?

A

IL-17, IL-22

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9
Q

Tfh effector cytokines made?

A

IL-4, IL-21

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10
Q

Treg effector cytokines made?

A

IL-10, TGF-beta

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11
Q

Th1 master transcriptional regulator?

A

T-bet

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12
Q

Th2 master transcriptional regulator?

A

GATA-3

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13
Q

Th17 master transcriptional regulator?

A

RORyt

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14
Q

Tfh master transcriptional regulator?

A

Bcl-6

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15
Q

Treg master transcriptional regulator?

A

FOX-P3

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16
Q

Th1 main functions

A
  • Inflammation
  • Cell mediated immunity
  • IFNy polarizes macrophages into M1, activates, and attracts them.
  • T cell recognizes. Macrophage removes
17
Q

Th2 main functions

A
  • Polarized macrophages into M2 by IL-4 and IL-13.
  • IL-4 and IL-5 attract eosinophils.
  • Allergic and anti-helminth responses–> m2 response and stimulates switch to IgE
18
Q

Th17 main functions

A
  • IL-17 and IL-22 attract and activate many inflammatory cells
  • M1 response
  • Maintaining integrity of mucosal surface
19
Q

Tfh main functions

A
  • B cell help in germinal centers

- Help them become activated and direct B cells to undergo class-switching

20
Q

Treg main functions

A

Suppresses Th1, Th2, Th17, Tfh by contact and soluble factors (TGF-beta, IL-10)