Definition

Noun: A tyrosine kinase inhibitor is a type of targeted therapy drug. It works by blocking (inhibiting) the action of abnormal tyrosine kinase enzymes. These enzymes are proteins that send signals telling cells, especially cancer cells, to grow and divide. By inhibiting them, the drug can slow or stop the growth of cancer cells.

Usage

This term is used specifically in medical and pharmacological contexts, particularly in oncology (cancer treatment). It refers to a class of pharmaceutical drugs.

Examples

• The patient's treatment plan includes a tyrosine kinase inhibitor to target the specific genetic mutation causing the cancer.
• Imatinib was one of the first successful tyrosine kinase inhibitors developed for chronic myeloid leukemia.
• Researchers are studying a new tyrosine kinase inhibitor for its effectiveness against lung cancer.

Advanced Usage

• The abbreviation TKI is commonly used in clinical notes and medical literature.
  • The oncologist switched the patient to a second-generation TKI.

Variants and Related Words

• TKI (n.): The standard acronym for tyrosine kinase inhibitor.
• Kinase inhibitor (n.): A broader class of drugs that inhibit various kinase enzymes, which includes tyrosine kinase inhibitors.
• Targeted therapy (n.): The broader category of cancer treatment that uses drugs like tyrosine kinase inhibitors to target specific molecules involved in cancer growth.

Synonyms

• Targeted anticancer agent
• Signal transduction inhibitor (a more technical term describing its mechanism)

Related Phrases

• TKI resistance: A condition where cancer cells stop responding to the tyrosine kinase inhibitor drug.
  • Monitoring for TKI resistance is a critical part of long-term management.
• TKI therapy: The treatment regimen involving the use of a tyrosine kinase inhibitor.
  • He has been on TKI therapy for three years with excellent results.

Noun

1. a drug used in cases of chronic myeloid leukemia