Folic Acid and Purine Analog Quiz

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Questions and Answers

Which drug inhibits dihydrofolate reductase and decreases synthesis of dTMP, RNA, and protein?

  • Methotrexate (correct)
  • 6-Mercaptopurine
  • Azathioprine
  • 5-Fluorouracil

Which drug induces mutations by pairing with both cytosine and thymine, and inhibits de novo purine synthesis?

  • Azathioprine
  • 6-Thioguanine (correct)
  • 5-Fluorouracil
  • Methotrexate

Which drug binds thymidylate synthase and decreases dTMP, and is used for solid tumors like lung, breast, and ovary?

  • Azathioprine
  • 5-Fluorouracil (correct)
  • 6-Mercaptopurine
  • Methotrexate

Which drug is a pyrimidine analog that specifically inhibits thymidylate synthase?

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

Which drug is a monoclonal antibody that prevents EGF binding to the receptor?

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

Which drug is a monoclonal antibody against VEGF and acts as an angiogenesis inhibitor?

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

Which drug is a monoclonal antibody that blocks CTLA-4?

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

Which drug is a monoclonal antibody that blocks PD-1?

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

Which drug is used for metastatic renal cell carcinoma and metastatic malignant melanoma?

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

Which drug is a B-RAF inhibitor used for late-stage melanoma?

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

Which drug is an epigenetic target used for myelodysplastic syndrome ('preleukemia')?

<p>5-Azacytidine (A)</p> Signup and view all the answers

Which drug is an immunotherapy used for metastatic colorectal cancer and lung cancer - NSCLC?

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

Which drug inhibits topoisomerase II and thereby induces double-strand DNA breaks?

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

Which drug stabilizes microtubules of the mitotic spindle?

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

Which drug is known for its addition of alkyl group and cross-linking DNA at Guanine residues?

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

Which drug is used to treat metastatic ovarian cancer and colorectal cancer?

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

Which drug is an estrogen receptor antagonist in breast but also a partial agonist in some other organs?

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

Which drug prevents conversion of testosterone to estradiol and is used in advanced breast cancer?

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

Which drug is a kinase inhibitor that inhibits HER2 and EGFR?

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

Which drug is an agonist of retinoic acid receptor and is used in the treatment of Acute Promyelocytic Leukemia?

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

Which drug inhibits CYP17A1 and androgen synthesis, and is used in castration-resistant prostate cancer?

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

Which drug is known for its fluid retention and is used in the treatment of HER2-positive breast cancer?

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

Which drug intercalates into DNA and inhibits DNA replication and transcription?

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

Which drug is a topoisomerase I inhibitor and leads to single-strand DNA breaks?

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

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