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.

18
Q

This immunoglobulin invloves in inflammatory, cytotoxic action

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)

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
Unregulated activation can results in ___.
Anaphylactic Type 1 hypersensitive
26
Rupture of echinococcus granulosus hydatid cyst.
Type 1 hypersensitivity
27
The combine activity of ____ can prevent penetration of erythrocytes by Plasmodium spp. And Babesia spp.
IgG and IgM
28
Combine activity of IgG and IgM can is effective against gastrointestinal helminths.
False - ineffective
29
The complement activity of these immunoglobulin can mediate lysis of trypomastigotes of Trypanosoma cruzi.
IgG and IgM
30
The secretion of this immunoglobulin in the intestine protect agaisnts metacestode and GI infections.
IgA
31
IgM and IgA mediate...
ADCC in Giardia lamblia infection
32
Cryptosporidium infection is self limited due to the combined action of ___.
IgA ans IgG with cell mediated immunity
33
T or F The host can activate its non-specific, specific, humoral, and cell-mediated defenses all at the same time.
True