Acquired Immune Response Flashcards

1
Q

Helps regulate T-lymphocytes.

A

Major histocompatibility complex (MHC) products

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2
Q

Old name of MHC

A

Human leukocyte antigen (HLA)

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3
Q

The specific immune response to parasites begins processed by

A

CD4 T-helper Lymphocytes.

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4
Q

What is the subsets of CD4 T-Lymphocyte?

A

Th1 and Th2

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5
Q

Th1 lymphocytes produce

A

Gamma interferon
Interleukin-2
Macrophage

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6
Q

What subset of t-helper cell mediates cell-mediated immune response?

A

Th1 lymphocyte

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7
Q

Th1 acitivates____ through gamma interferon and interleukin-2

A

Cytotoxic lymphocytes

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8
Q

T or F
Parasitic-specific antigen induces clonal expansion of parasite-specific T-Lymphocyte .

A

True

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9
Q

Cell mediated immunity may act by

A
  • Direct cytotoxicity
  • Indirectly on natural killer cells
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10
Q

Migrating larvae of ____ are killed through cell-mediated activity.

A

Toxocara canis

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11
Q

What is the product of Th2?

A

Interleukins 4,5,6

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12
Q

It enhances the proliferation and differentiation of B lymphocyte into plasma cells.

A

4,5,6 interleukins

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13
Q

Responsible for immunoglobulin production.

A

B-lymphocyte

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14
Q

In Helminths infections, the mkst common responses includes____.

A

Eosinophilia and elevated serum IgE.

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15
Q

Lumen dwelling helminths.

A

Ascaris lumbricoides
Trichuris trichiura

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16
Q

Lymphatic dwelling helminths

A

Wuchereria bancrofti
Brugia malayi

17
Q

This antibody is bound in mast cells, Eosinophil, and gobket cells. They can mediate the eventual expulsion of adult gastrointestinal helminths.

A

IgE

18
Q

This immunoglobulin invloves in inflammatory, cytotoxic action

A

IgE

19
Q

What is the indication of increasing eosinophil?

A

Hypersensitivity/ allergic reaction
Parasitic infection

20
Q

It is an antibody dependent cell-mediated cytotoxicity (ADCC)

A

IgE

21
Q

There are a variety of activating molecules expressed by the eosinophil that mediates (ADCC)
What are they?

A

Eosinophil activating factor (EAF)
Interleukin-5
Granulocyte monocyte colony stimulating factor (GM-CSF)

22
Q

Destruction of microfilariae has been attributed to ADCC mediated by___.

A

IgE and eosinophil

23
Q

Aside from IgE and eosinophil, what else are involved in ADCC?

A

Neutrophils and platelets

24
Q

They can act on mast cells and basophils, which lead to degranulation and eventual release of pharmacologically active substances.

A

Homocytotrophic IgG1 and IgE

25
Q

Unregulated activation can results in ___.

A

Anaphylactic Type 1 hypersensitive

26
Q

Rupture of echinococcus granulosus hydatid cyst.

A

Type 1 hypersensitivity

27
Q

The combine activity of ____ can prevent penetration of erythrocytes by Plasmodium spp. And Babesia spp.

A

IgG and IgM

28
Q

Combine activity of IgG and IgM can is effective against gastrointestinal helminths.

A

False - ineffective

29
Q

The complement activity of these immunoglobulin can mediate lysis of trypomastigotes of Trypanosoma cruzi.

A

IgG and IgM

30
Q

The secretion of this immunoglobulin in the intestine protect agaisnts metacestode and GI infections.

A

IgA

31
Q

IgM and IgA mediate…

A

ADCC in Giardia lamblia infection

32
Q

Cryptosporidium infection is self limited due to the combined action of ___.

A

IgA ans IgG with cell mediated immunity

33
Q

T or F
The host can activate its non-specific, specific, humoral, and cell-mediated defenses all at the same time.

A

True