Compared to Type III hypersensitivities, reactions primarily involve -cell activity. Type IV dysfunction is known as secondary antigen exposure. hypersensitivity for symptoms arise 1 to several days following One example, infectious allergy, occurs during the reaction in persons sensitized by tuberculosis infection.
Compared to Type III hypersensitivities, reactions primarily involve -cell activity. Type IV dysfunction is known as secondary antigen exposure. hypersensitivity for symptoms arise 1 to several days following One example, infectious allergy, occurs during the reaction in persons sensitized by tuberculosis infection.
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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
Transcribed Image Text:Examine Type IV hypersensitivities by completing each sentence.
54
Туре IV
МНС I
tuberculin
Compared to Type III hypersensitivities,
reactions primarily involve
-cell activity.
T
allografts
Type IV dysfunction is known as
secondary antigen exposure.
hypersensitivity for symptoms arise 1 to several days following
contact dermatitis
delayed
One example, infectious allergy, occurs during the
reaction in persons sensitized by tuberculosis
Lysosome
infection.
xenografts
GVHD
which occurs after exposure to antigens in
The most common delayed allergic reaction, however, is
plant resins, drugs, or personal articles, and involves the production of inflammatory cytokines that cause blistering.
Autografts
В
-mediated reactions, while
Finally, host rejection of grafted tissue can occur due to
occurs when passenger cells in the grafted tissue attack host cells.
MHC II
Psoriasis

Transcribed Image Text:Турe IV
MHC I
tuberculin
Compared to Type III hypersensitivities,
reactions primarily involve
-cell activity.
T
allografts
Type IV dysfunction is known as
secondary antigen exposure.
hypersensitivity for symptoms arise 1 to several days following
contact dermatitis
delayed
One example, infectious allergy, occurs during the
reaction in persons sensitized by tuberculosis
Lysosome
infection.
xenografts
GVHD
which occurs after exposure to antigens in
The most common delayed allergic reaction, however, is
plant resins, drugs, or personal articles, and involves the production of inflammatory cytokines that cause blistering.
Autografts
B
Finally, host rejection of grafted tissue can occur due to
occurs when passenger cells in the grafted tissue attack host cells.
-mediated reactions, while
МНС I
Psoriasis
or tissue used from one's own body, offer the lowest risk of graft rejection; these are followed by
HVGD
isografts (identical twin donor);
which are the most common source of grafts today; and
which are experimental as genetic engineering works to reduce their antigenicity in humans.
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