T1 L22: Cancer Immunology (FK)

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Questions and Answers

Which of the following is a learning outcome of Cancer Immunology and Immunotherapy?

  • Understanding the role of T-cells in anti-cancer immunity
  • Understanding the role of the tumour microenvironment for the immune response (correct)
  • Understanding the process of creating personalised tumour vaccines
  • Understanding the concept of cancer susceptibility genes

What are Tumour-selective antigens (TSAs)?

  • Proteins expressed on the surface of cancer cells
  • Proteins expressed mainly in tumours (correct)
  • Public/shared proteins expressed at early cell differentiation stages
  • Proteins expressed at higher levels in tumour cells

What do cancer cells show that is different from the immunological 'self'?

  • Different antigen expression levels (correct)
  • Different protein production rates
  • Different immune response mechanisms
  • Different cell differentiation stages

What are the mutated peptides presented on the surface of cancer cells?

<p>Tumour-specific antigens (D)</p> Signup and view all the answers

What is the role of the immunological synapse and checkpoints in cancer immunotherapy?

<p>To inhibit the immune response against cancer cells (A)</p> Signup and view all the answers

What is CAR-immune-cell therapy?

<p>A therapy that manipulates T-cells to recognize and destroy tumours (B)</p> Signup and view all the answers

Why are T-cells critical in anti-cancer immunity?

<p>They recognize mutated peptides (A)</p> Signup and view all the answers

Which gene did Angelina Jolie mention in her New York Times op-ed that led her to undergo an elective double mastectomy?

<p>BRCA1 (A)</p> Signup and view all the answers

What is the function of cytokines in the tumor microenvironment?

<p>Downregulate inflammation (B)</p> Signup and view all the answers

Which molecule is involved in the inhibitory signal at the immunological synapse?

<p>PD-1 ligand (A)</p> Signup and view all the answers

What is the main purpose of anti-checkpoint therapy?

<p>Reinstate normal T-cell activation (B)</p> Signup and view all the answers

Which drug is a PD-1 antibody used in anti-checkpoint therapy?

<p>Dostarlimab (B)</p> Signup and view all the answers

Which type of cancer patients is Dostarlimab (Jemperli) approved for?

<p>Prostate cancer patients with dMMR (B)</p> Signup and view all the answers

What is the role of T-cells in the tumor microenvironment?

<p>Recognize peptides on tumor cells (C)</p> Signup and view all the answers

Which of the following statements about tumour-selective antigens is true?

<p>Tumour-selective antigens can be used as target antigens for cancer vaccines (A)</p> Signup and view all the answers

What is the definition of Tumour Mutational Burden (TMB)?

<p>The number of proteins with a mutation leading to a change in coded amino acids (A)</p> Signup and view all the answers

What is the role of neoantigens in distinguishing tumours from normal cells?

<p>Neoantigens are antigens recognized by T-cell receptors (A)</p> Signup and view all the answers

What is the purpose of antigen-presenting cells (APC) in neoantigen-based vaccines?

<p>APCs activate T cells by presenting neoantigens (C)</p> Signup and view all the answers

What is the main function of personalised RNA tumour vaccines?

<p>To encode peptides or proteins similar to COVID vaccines (D)</p> Signup and view all the answers

Which of the following statements about cancer susceptibility genes is true?

<p>Cancer susceptibility genes indicate a higher cancer risk (C)</p> Signup and view all the answers

What is the risk of developing breast cancer by a woman in the UK with a mutation in the BRCA1 gene?

<p>60-85% (C)</p> Signup and view all the answers

Which of the following is a checkpoint inhibitor that targets the PD-1/PD-1 ligand pathway?

<p>Dostarlimab (D)</p> Signup and view all the answers

Which therapy is an autologous personalised therapy?

<p>Tisagenlecleucel (B)</p> Signup and view all the answers

Which therapy targets CD19 on B-cells and B-ALL?

<p>Tisagenlecleucel (A)</p> Signup and view all the answers

Which therapy requires a blood sample and takes about 3 weeks to receive the personalised therapy?

<p>Tisagenlecleucel (D)</p> Signup and view all the answers

Which therapy is an off-the-shelf product and does not require MHC-match?

<p>CAR-NK-cell therapy (A)</p> Signup and view all the answers

Which immune cells are the mainstay of natural anti-tumour immunity?

<p>T-cells (A)</p> Signup and view all the answers

Which therapy can be reactivated by anti-checkpoint therapy?

<p>T-cells (D)</p> Signup and view all the answers

Which therapy can be combined with other therapies?

<p>RNA vaccines (B)</p> Signup and view all the answers

Which therapy has the potential for therapeutic 'warehouse' approach and does not need to be autologous or HLA-matched?

<p>CAR-NK-cell therapy (B)</p> Signup and view all the answers

Which type of proteins are expressed in almost all tumors of the same kind?

<p>Tumor associated proteins (C)</p> Signup and view all the answers

What is the main difference between tumor associated proteins and tumor specific proteins?

<p>The level of expression (B)</p> Signup and view all the answers

What is the function of Class I MHC in presenting antigens?

<p>To present antigens from intracellular space (B)</p> Signup and view all the answers

What is the purpose of central tolerance in regards to mutated peptides?

<p>To ignore and tolerate mutated peptides (C)</p> Signup and view all the answers

Which of the following is true about tumour-selective antigens?

<p>They are mutations that only occur in certain patients (B)</p> Signup and view all the answers

What is the purpose of using cancer-selective antigens in diagnosis and follow-up?

<p>All of the above (D)</p> Signup and view all the answers

Which type of cancer has a major cancer-selective antigen called prostate-specific antigen (PSA)?

<p>Prostate cancer (A)</p> Signup and view all the answers

What is the human mutational burden defined as?

<p>The number of mutated proteins that lead to a change in coated amino acid (D)</p> Signup and view all the answers

Which of the following is a potential application of cancer immunotherapy?

<p>Enhancing the effectiveness of existing cancer treatments (B)</p> Signup and view all the answers

What is the role of the tumour microenvironment in the immune response?

<p>Suppressing the immune response against cancer cells (D)</p> Signup and view all the answers

What is the main purpose of checkpoint inhibition in cancer immunotherapy?

<p>To prevent the immune system from attacking healthy cells (D)</p> Signup and view all the answers

What is the significance of tumour-selective antigens in cancer immunotherapy?

<p>They can be used to create personalized tumour vaccines (B)</p> Signup and view all the answers

Which gene mutations are strongly associated with ovarian cancer and breast cancer?

<p>BRCA1 and BRCA2 (A)</p> Signup and view all the answers

Which percentage range represents the increased chance of developing breast cancer with a mutation in the BRCA1 gene, compared to the average woman in the UK?

<p>60-85% (A)</p> Signup and view all the answers

What is the risk of developing breast cancer by the age of 70 for the average woman in the UK?

<p>12.5% (C)</p> Signup and view all the answers

What is the purpose of the tumour microenvironment?

<p>To prevent immune response against tumour cells (A)</p> Signup and view all the answers

Which of the following is a mechanism by which tumour cells evade the immune system?

<p>Upregulation of immune checkpoints (B)</p> Signup and view all the answers

What is the function of cytokines secreted by tumour cells?

<p>Suppress immune response (D)</p> Signup and view all the answers

Which molecule is involved in downregulating the immune response by inhibiting T-cell activation?

<p>CTLA-4 (A)</p> Signup and view all the answers

What is the role of the tumour microenvironment in immune evasion?

<p>Protects tumour cells from the immune system (A)</p> Signup and view all the answers

Which of the following is a potential strategy for cancer immunotherapy?

<p>Administering personalised RNA tumour vaccines (C)</p> Signup and view all the answers

What is the role of personalised RNA tumour vaccines in cancer immunotherapy?

<p>They stimulate the immune response away from the tumour (C)</p> Signup and view all the answers

Why is it important to stimulate the immune response away from the tumour in cancer immunotherapy?

<p>The tumour can evade immune responses (C)</p> Signup and view all the answers

What is the potential benefit of using personalised tumour vaccines in cancer immunotherapy?

<p>They specifically target the mutated peptides in the patient's tumour (B)</p> Signup and view all the answers

Which drug is being used to stop T-cell activation around transplantation?

<p>CTLA four immunoglobulin (A)</p> Signup and view all the answers

What is the main function of anti-checkpoint therapy?

<p>To stimulate T-cell activation (D)</p> Signup and view all the answers

What is the role of CD8086 in T-cell activation?

<p>To stimulate T-cell activation (C)</p> Signup and view all the answers

What is the function of leukocyte function antigen one in transplantation?

<p>To reduce T-cell activation (C)</p> Signup and view all the answers

What is the term used to describe the therapy that targets checkpoints in cancer immunotherapy?

<p>Anti-tumor therapy (C)</p> Signup and view all the answers

What are the molecules involved in stabilizing the immunological synapse?

<p>CD86 and CD80 (C)</p> Signup and view all the answers

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