Lentivirus Vectors and ADA-SCID Syndrome

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Questions and Answers

What is the primary gene missing or reduced in patients with ADA-SCID?

  • CYBA
  • ADA (correct)
  • CYBB
  • NCF1

Which of the following is a consequence of untreated immune deficiency in patients with ADA-SCID?

  • Variable platelet correction
  • Increased gene expression
  • Tertiary structure formation
  • Profound pan-lymphopenia (correct)

What is the primary initiating element for the transcription of the transgene in lentivirus vectors used in research?

  • WPRE/3’UTR
  • Sequence that enhances expression
  • Promoter (correct)
  • Transgene

Which approach has been increasingly used as a curative method for ADA-SCID once the diagnosis is established?

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

What is the primary issue associated with insertional mutagenesis in gene therapy?

<p>Uncontrolled gene expression activation (C)</p> Signup and view all the answers

What is a key characteristic of the Umbilical Cord Blood stem cell transplantation approach?

<p>HLA-matched sibling donor requirement (C)</p> Signup and view all the answers

Which clinical study design was used for evaluating the Lentivirus vector treatment for ADA-SCID?

<p>Prospective, non-randomised (C)</p> Signup and view all the answers

What is the main genetic error in patients with CYBB-associated SCID?

<p>Mutations in CYBB (B)</p> Signup and view all the answers

Which of the following is NOT a feature of ADA-SCID?

<p>Increased platelet count (C)</p> Signup and view all the answers

What is the primary aim of using lentivirus vectors in gene therapy for ADA-SCID?

<p>Inserting functional ADA gene into patients' cells (D)</p> Signup and view all the answers

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