Exam 17: Cancer and Its Interactions With the Immune System

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A benign tumor of glandular tissue is known as a(n)_____.

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C

Provide examples where tumor cells transferred between a donor and a recipient are either (A)rejected and do not cause cancer,or (B)not rejected and cause cancer.

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A. If primary tumor cells are donated between MHC-disparate mice, the cytotoxic T cells of the recipient recognize differences in MHC class I and kill the tumor cells.
B. (i) The marsupial known as the Tasmanian devil can pass tumor cells between individuals when fighting and biting each other’s faces. Because of limited MHC diversity in the species, there is a lack of allograft rejection, and the tumor cells establish themselves at the site of facial injury. (ii) In humans, residual tumor cells in an HLA-matched transplanted organ will not be rejected because the recipient is immunosuppressed and unable to mount an antitumor immune response.

Proteins not expressed on normal cells but found on tumor cells are called _____.

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D

Systemic distribution of cancer cells to other sites of the body through the bloodstream or lymph is a process known as _____.

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Explain why the incidence of cancer is higher in the elderly than in young people.

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Human herpesvirus 8 (HHV8)is associated with the development of _____ in immunocompromised patients.

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Which of the following cell types in a tumor biopsy would not be associated with a promising prognosis?

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A malignant tumor is characterized by which of the following features? (Select all that apply.)

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_____ agents usually cause single nucleotide substitutions in DNA,whereas _____ agents produce more significant damage to DNA.

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_____ describes the condition in which a cell becomes able to cause cancer.

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A.How is it possible for a tumor-specific antigen to be composed of a unique sequence of amino acids not encoded in the genome of the tumor cell? B.Give a specific example.

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Adoptive transfer of sipuleucel-T-primed dendritic cells is a form of immunotherapy currently used for the treatment of _____.

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Human papillomaviruses express proteins that bind to _____ and block its function.(Select all that apply.)

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A tumor-associated antigen normally expressed only in the testis is called a _____ antigen.

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Match the treatment with its target.
ipilimumab
CD30
brentuximab
CD20
ibritumomab
BRAF
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ipilimumab
CD30
brentuximab
CD20
ibritumomab
BRAF
lirilumab
programmed death 1 (PD-1)
nivolumab
CTLA-4
elotuzumab
CD319
vemurafenib
HLA-C-specific inhibitory KIRs
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An example of a physical agent that increases an individual's predisposition to developing cancer is_____.(Select all that apply.)

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A.What is Li-Fraumeni syndrome? B.What is the underlying cause?

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Provide an example of a monoclonal antibody that can be modified differently to either detect or eradicate a tumor.

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A protein expressed in response to damage to DNA that results in death to the cell is _____.

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Li-Fraumeni syndrome is linked to a greater risk of cancer as a result of the inheritance of a germline mutation in one copy of _____.

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