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Home Q & A Board Biology-Related Homework Help Medicine Immunology
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bwebb03 bwebb03
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6 years ago
A child who suffers from a persistent viral infection is found to have a deficiency in lymphocyte production and very few T and B cells.
 
  Other bone marrow-derived cells are produced in normal numbers, and MHC molecule expression on cells appears normal. Transfusion of mature T cells from an unrelated donor who had recovered from a previous infection by the same virus would not be expected to help the child clear his infection. Which one of the following is a reasonable explanation for why this therapeutic approach would fail?
  A. Viral infections are cleared by antibodies, not T cells.
  B. The patient's own immune system would destroy the transfused T cells before they could respond to the viral infection.
  C. T cells recognize peptides, not viral particles.
  D. Donor T cell viral antigen recognition is restricted by MHC molecules not expressed in the patient.
  E. In responding to the previous infection, the donor would have used up all his T cells specific for that virus.
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hetomlinson06hetomlinson06
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6 years ago
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bwebb03 Author
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6 years ago
Brilliant ツ
tcat
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Yesterday
this is exactly what I needed
veronee_madison
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2 hours ago
Correct Slight Smile TY
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