cytarabine
C2+Medical/Technical
Definition
Meaning
A chemotherapy drug used primarily to treat certain types of leukaemia and lymphoma by interfering with DNA synthesis in cancer cells.
A synthetic nucleoside analogue (cytosine arabinoside) that, once metabolised within the cell, inhibits DNA polymerase, halting cell division and inducing apoptosis (programmed cell death) in rapidly dividing cells. It is a cornerstone of treatment for acute myeloid leukaemia (AML).
Linguistics
Semantic Notes
This is a highly technical term used exclusively in oncology, haematology, pharmacology, and biochemistry. It is a proper noun for a specific chemical entity and has no figurative or colloquial usage.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. The drug is known internationally by its INN (International Nonproprietary Name) 'cytarabine'. Minor pronunciation differences exist (see IPA).
Connotations
None beyond its medical context. It carries the same clinical gravity in both varieties.
Frequency
Identically low frequency outside specialised medical fields. Usage is identical in medical literature and practice in the UK and US.
Vocabulary
Collocations
Grammar
Valency Patterns
[Patient] was treated with cytarabine.[Disease] is sensitive to cytarabine.The regimen includes cytarabine.[Side-effect] is a known complication of cytarabine.Vocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Not applicable; may appear in pharmaceutical company reports or investment analyses concerning oncology portfolios.
Academic
Central term in medical research papers, oncology textbooks, and pharmacology lectures on antimetabolites.
Everyday
Virtually never used except by patients, caregivers, or healthcare professionals discussing specific treatment plans.
Technical
The primary context. Used in clinical notes, treatment protocols (e.g., "7+3" regimen), drug monographs, and laboratory research.
Examples
By Part of Speech
adjective
British English
- cytarabine-containing solution
- cytarabine-induced neurotoxicity
American English
- cytarabine-containing solution
- cytarabine-induced neuropathy
Examples
By CEFR Level
- The doctor mentioned a drug called cytarabine.
- Cytarabine is used for some blood cancers.
- The standard induction therapy for AML often combines cytarabine with an anthracycline.
- A common side effect of high-dose cytarabine is cerebellar toxicity.
- Despite its efficacy, the use of cytarabine can be limited by the development of drug resistance mediated by increased expression of hENT1 transporters.
- Pharmacokinetically guided dose adjustment of cytarabine may be employed to optimise therapeutic outcomes while mitigating systemic toxicity.
Learning
Memory Aids
Mnemonic
CYTARABINE: CYTosine ARABINoside chemotherapINE. Think: 'Sight a rabbit (cytarabine) in the lab; it stops cells from multiplying like rabbits.'
Conceptual Metaphor
A 'molecular saboteur' or 'counterfeit building block'. It is a faulty component fed to a rapidly constructing machine (the dividing cell), causing the machine to jam and break down.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate directly. It is an international nonproprietary name (МНН). In Russian, it is 'цитарабин' (tsitarabin).
- Avoid confusing it with similar-sounding drugs like 'cytoxan' (cyclophosphamide) or 'cytomel' (liothyronine).
Common Mistakes
- Misspelling as 'citirabine', 'cytaribine', or 'cytarabin'.
- Incorrect pronunciation stressing the first syllable: /ˈsaɪ.tə.rə.biːn/.
- Using it as a common noun without an article (e.g., 'Patient is on cytarabine' is correct; 'Patient is on a cytarabine' is incorrect).
Practice
Quiz
Cytarabine primarily exerts its chemotherapeutic effect by:
FAQ
Frequently Asked Questions
Yes, Ara-C is a common abbreviation for cytarabine, derived from its chemical name, cytosine arabinoside.
It is primarily used to treat acute myeloid leukaemia (AML), acute lymphoblastic leukaemia (ALL), and some types of lymphoma and meningeal leukaemia.
It can be administered intravenously (IV), subcutaneously (SC), or intrathecally (into the cerebrospinal fluid), depending on the treatment protocol and target.
Common side effects include myelosuppression (low blood counts), nausea, mucositis, and fever. High-dose regimens can cause neurotoxicity (e.g., cerebellar syndrome), conjunctivitis, and severe skin reactions.