Monoclonal Antibodies and Photodynamic Therapy
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Questions and Answers

Which of the following targeted therapies is associated with differentiation syndrome as a significant adverse effect?

  • Selinexor
  • Enasidenib (correct)
  • Ibrutinib
  • Idelalisib

A patient undergoing CAR-T cell therapy develops cytokine release syndrome (CRS). Which CAR-T therapy target is LEAST likely the cause, given their known specificities?

  • CD19
  • BCMA
  • CD30 (correct)
  • CD22

Which of the following mechanisms of action is correctly paired with its respective agent used in cancer therapy?

  • Thalidomide: Inhibits telomerase activity
  • Hydroxyurea: Depletes asparagine from plasma
  • Asparaginase: Inhibits ribonucleotide reductase
  • Arsenic trioxide: Degrades PML-RAR-α (correct)

A researcher is investigating novel therapies to target B-cell malignancies. Which of the following targets, when bound by a monoclonal antibody, is most likely to directly inhibit B-cell receptor signaling?

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

A patient with relapsed/refractory multiple myeloma is being considered for targeted therapy. Based on the provided information, which of the following targets is most relevant for this patient's treatment?

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

A patient undergoing photodynamic therapy with methoxsalen is being educated about the treatment. Which mechanism of action should the healthcare provider emphasize?

<p>Interference with DNA synthesis and subsequent DNA damage. (D)</p> Signup and view all the answers

Which of the following cellular effects are associated with tretinoin (ATRA) treatment in Acute Promyelocytic Leukemia (APL)?

<p>Activation of the PML-RAR receptor, promoting WBC differentiation. (C)</p> Signup and view all the answers

A patient is prescribed pembrolizumab for cancer treatment. What is the primary mechanism of action of this drug?

<p>Blocking the inhibitory PD-1 receptor on T-cells to enhance immune response. (C)</p> Signup and view all the answers

A patient is scheduled to receive rituximab as part of their treatment regimen. What is the target of the rituximab monoclonal antibody?

<p>CD20 (D)</p> Signup and view all the answers

A patient develops peripheral neuropathy during cancer treatment. Which of the following monoclonal antibodies is most likely to be the cause?

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

A patient experiences cytokine release syndrome (CRS) after cancer treatment. Which class of antibodies is most likely responsible for this adverse effect?

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

A patient with a specific genetic mutation requires a selective inhibitor to block the Philadelphia chromosome. Which of the following STIs is most appropriate for this patient?

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

A patient receiving chemotherapy develops signs of increased DNA condensation. Which class of drugs could be used to counteract this effect?

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

Blinatumomab targets which of the following proteins on cancer cells and T-cells?

<p>CD19 and CD3 (C)</p> Signup and view all the answers

Which of the following targeted therapies is used to treat multiple myeloma by targeting CD38 on myeloma cells and Fc on NK cells?

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

Which kinase is NOT a target of the listed mutant kinase receptor inhibitors?

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

Which of the following targeted therapies is used in cancers with Mutant IDH1 or 2?

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

Which of the following cellular therapies targets BCMA?

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

Which of the following conditions is NOT explicitly listed as a cancer type treated by the drugs listed?

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

Which of the following targets of the listed miscellaneous STIs does NOT play a role in epigenetic regulation?

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

A patient with relapsed/refractory multiple myeloma has disease progression after treatment with a proteasome inhibitor, an IMiD, and an anti-CD38 antibody. Which of the following would be the MOST appropriate next targeted therapy?

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

Flashcards

Mutant IDH Blockers

Drugs targeting mutant isocitrate dehydrogenase with a risk of differentiation syndrome.

CAR-T Therapy

A treatment that modifies T-cells to target cancer, associated with Cytokine Release Syndrome (CRS).

Asparaginase

An enzyme that depletes asparagine from plasma, used in treating certain leukemias.

Hydroxyurea

A drug that inhibits ribonucleotide reductase, thus suppressing DNA synthesis.

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Thalidomide

A medication that enhances IL-2 and interferon gamma, impacting immune cell activity.

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Multiple Myeloma

A cancer of plasma cells in the bone marrow, causing abnormal cell proliferation.

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B-cell Lymphoma

A group of blood cancers that develop from B lymphocytes, a type of white blood cell.

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CD19

A protein expressed on B-cell tumors targeted by certain therapies like blinatumomab.

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BCMA

B-cell Maturation Antigen, a target for therapies in multiple myeloma.

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Imatinib

A targeted therapy used for chronic myeloid leukemia (CML) or acute lymphoblastic leukemia (ALL).

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CAR T-cell Therapy

A treatment that modifies a patient's T-cells to target and kill cancer cells.

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Venetoclax

A drug that inhibits BCL-2, used primarily in chronic lymphocytic leukemia (CLL).

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Proteasome Inhibitors

Drugs that block proteasomes, leading to apoptosis in cancer cells, used in multiple myeloma.

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Photodynamic therapy

Uses methoxsalen (Uvadex) to inhibit DNA synthesis and damage DNA.

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Retinoids

Compounds like tretinoin activate PML-RAR, improving WBC differentiation.

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PD-1 inhibitors

Drugs like Pembrolizumab and Nivolumab block PD-1 to enhance T-cell response.

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Anti-CD20 mAbs

Monoclonal antibodies like Rituximab target CD20 for cancer treatment.

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BITE antibodies

Bispecific T-cell engagers like Blinatumomab link T-cells to cancer cells.

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JAK inhibitors

Small molecule inhibitors like Fedratinib block JAK signaling pathways.

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HDAC inhibitors

Agents like Romidepsin block DNA condensation via histone deacetylation.

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Study Notes

Photodynamic Therapy

  • Methoxsalen (Uvadex) inhibits DNA synthesis and damages DNA.

Retinoids

  • Tretinoin (ATRA) activates PML-RAR, inhibiting differentiation, and increases normal white blood cells.
  • RA-APL syndrome/leukocytosis increases white blood cells and immune system activity.
  • Bexarotene activates RXR.

PD-1/T-cell Checkpoint Inhibitors

  • Pembrolizumab or Nivolumab block immune cell (T-cell) inhibition via PD-1.
  • Increase immune system response.

Anti-CD19 mAbs/CD20 mAbs

  • -tamab, -tuximab, -tumomab, -tuzumab
    • CD19: tafasitamab, loncastuximab.
    • CD20 (Type I): Rituximab, ofatumumab.
    • CD20 (Type II): obintuzumab, ibritumomab.

Anti-CD22 mAbs

  • Inotuzumab ozogamicin

Anti-CD30 or CD79b mAbs

  • Brentuximab vedotin inhibits tubulin polymerization, causing peripheral neuropathy.

Anti-CD38 or SLAMF mAbs

  • -tuximab, -tumumab

BITE antibodies

  • -tumomab, -tuzumab, -tamab
  • Cytokine release syndrome (CRS) and neurotoxicity.
  • CD3 & CD19: blinatumomab, mosunetuzumab
  • CD3 & BCMA: teclistamab, talquetamab

STI's that block JAK/BTK

  • Fedratinib, pacritinib, ruxolitinib block JAK.
  • Ibrutinib, acalabrutinib block BTK.

Block Ph & c-KIT

  • -a/-o/-utinib (except fedratinib) block Ph & c-KIT.
  • Asciminib targets Ph specific.

Block FLT3

  • Midostaurin, gilteritinib, quizartinib (Vanflyta) block FLT3.

SMO Blockers

  • Glasdegib blocks SMO.

Block PKB at PI3K

  • Idelalisib, duvelisib block PKB at PI3K.

Black Protein Synthesis

  • Omacetaxine mepesuccinate (Synribo) binds to ribosomes.

Proteasome Inhibitors

  • Bortezomib, carfilzomib, ixazomib are proteasome inhibitors.

Block DNA Condensation

  • Romidepsin, vorinostat, belinostat, panobinostat block DNA condensation via HDAC.
  • Tazemetostat block DNA condensation via HMT.

Block BCL-2

  • Venetoclax blocks BCL-2.

Mutant IDH Blockers

  • Ivosidenib, enasidenib, olutasidenib are Mutant IDH Blockers, inducing differentiation syndrome.

Inhibit Nuclear Transport

  • Selinexor inhibits nuclear transport (exportin 1).

Block Menin/Aberrant Transcription

  • Revumenib blocks menin/aberrant transcription.

Inhibit Telomerase

  • Imetelstat (Rytelo) inhibits telomerase.

CAR-T Therapy

  • Lisocabtagene maraleucel targets CD19 (except idecabtagene vicleucel and ciltabtagene autoleucel).
  • Targets BCMA.

Misc. Agents

  • Hydroxyurea inhibits ribonucleotide reductase, inhibiting DNA synthesis.
  • Asparaginase depletes asparagine from plasma.
  • Arsenic trioxide degrades PML-RAR-a, causing differentiation.

Thalidomide

  • Increases IL-2 & Interferon gamma, activating NK cells, inhibiting myeloid cell growth.

Summary of Protein Drugs with Immune Cell Targets

  • Various drugs targeting different immune cells (e.g., CD19, CD20, etc) and their corresponding cancers.

mAbs/STIs Summary of Miscellaneous STIs

  • Various drugs targeting different targets (e.g., Mutant IDH1 or 2, P13-kinase, Proteasome, etc).

Miscellaneous Antineoplastic Agents

  • Drugs like hydroxyurea, asparaginase, and arsenic trioxide with their mechanisms of action and uses.

Summary of Recovery Agents

  • Various drugs stimulating endogenous agonists for different conditions (e.g., neutropenia, anemia, thrombocytopenia).

Summary of Anti-Emetics

  • Various groups of anti-emetic drugs including 5-HT3 and NK1 antagonists, D2 antagonists, glucocorticoids, and H1 and M1 antagonists, and their uses for nausea/vomiting.

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Description

This lesson covers several cancer treatments including photodynamic therapy, retinoids and monoclonal antibodies (mAbs). It details specific drugs like methoxsalen, tretinoin, pembrolizumab and rituximab. The lesson also explains treatment targets like CD19, CD20, CD22, CD30, CD38 and SLAMF.

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