DCM PICO Framework: Impact of APOE Carrier Status on Disease Progression
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Questions and Answers

What is the purpose of a 'reporter line' in mice?

  • To deliver transgenes using viral approaches
  • To conditionally delete specific genes
  • To ablate specific cells
  • To conditionally express fluorescent tags (correct)

What is the function of Cre in the Cre-loxP system?

  • To express fluorescent tags
  • To recombine DNA sequences (correct)
  • To delete genes
  • To deliver transgenes

What is the result of conditional deletion of the cell cycling gene KRas in GLAST+ pericytes?

  • Increased proliferation of pericytes
  • Localized expression of Cre
  • Labeling of pericytes with fluorescent tags
  • Prevention of pericyte proliferation (correct)

What is the advantage of using tamoxifen administration in conditional deletion?

<p>It allows for timing control of gene deletion (D)</p> Signup and view all the answers

What is the purpose of crossing D1R-Cre 2.D2R-Flp mice with double transgenic tdTomato-LoxP; eGFP-Frt mice?

<p>To generate a 'dual' reporter line (B)</p> Signup and view all the answers

What is the advantage of using viral approaches to label and deliver transgenes?

<p>It allows for localized Cre/Flp dependent expression (A)</p> Signup and view all the answers

What is the purpose of using the Cre-loxP system in viral gene delivery?

<p>To allow for conditional expression or deletion of a gene (D)</p> Signup and view all the answers

What is the role of the VGlut2-Cre mouse in the viral gene delivery approach?

<p>To selectively express a gene in VGlut2-expressing neurons (B)</p> Signup and view all the answers

What is the advantage of using a dual viral approach in conditional gene expression?

<p>It provides more control over the specific cells targeted (B)</p> Signup and view all the answers

What is the function of the NpHR gene in optogenetics?

<p>To silence neuronal activity (A)</p> Signup and view all the answers

What is the purpose of using the Flp-Frt system in viral gene delivery?

<p>To allow for conditional expression or deletion of a gene (B)</p> Signup and view all the answers

What is the goal of using viral intersectional techniques?

<p>To concurrently activate and silence specific neurons (C)</p> Signup and view all the answers

What is the primary function of the Cre recombinase enzyme in the Cre-lox system?

<p>To recognize and catalyze recombination events between loxP sites (B)</p> Signup and view all the answers

What is the role of the loxP sites in the Cre-lox system?

<p>To flank the gene of interest (A)</p> Signup and view all the answers

What is the purpose of the Rosa26 genetic locus in mice?

<p>To facilitate targeted gene expression and genetic manipulation (B)</p> Signup and view all the answers

What is the outcome of conditional expression of DTR in Pdgfrb+ pericytes?

<p>The pericytes express the DTR receptor (B)</p> Signup and view all the answers

What is the purpose of the Flp-Frt system?

<p>To catalyze recombination events between FRT sites (D)</p> Signup and view all the answers

What is the outcome of conditional deletion of Fn1 in Pdgfrb+ pericytes?

<p>The pericytes stop expressing the Fn1 gene (D)</p> Signup and view all the answers

What is the purpose of the Cre-lox system?

<p>To catalyze recombination events between loxP sites (D)</p> Signup and view all the answers

What is the advantage of using a dual recombinase strategy combining Cre-lox and Flp-Frt systems?

<p>To selectively manipulate multiple cell types (B)</p> Signup and view all the answers

What is the role of tamoxifen in the Cre-lox system?

<p>To control the timing of conditional deletion or expression (B)</p> Signup and view all the answers

What is the outcome of conditional ablation of DTR-expressing cells?

<p>The cells undergo apoptosis (C)</p> Signup and view all the answers

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