interleukin 2
Very LowTechnical/Scientific
Definition
Meaning
A cytokine protein produced by T cells that regulates immune responses, particularly T cell proliferation.
A specific type of interleukin (IL-2) that functions as a growth factor for T lymphocytes and natural killer cells, used clinically in immunotherapy for certain cancers and as a pharmacological agent in immunology.
Linguistics
Semantic Notes
Always used with the number '2' (IL-2); part of a numbered interleukin family (IL-1, IL-2, etc.). The term refers specifically to the protein molecule itself, not its effects.
Dialectal Variation
British vs American Usage
Differences
No spelling or pronunciation differences. Both varieties use identical terminology in scientific contexts.
Connotations
Identical technical/scientific connotations in both varieties.
Frequency
Equally rare in general discourse; appears exclusively in medical, immunological, and biochemical contexts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
interleukin 2 + verb (stimulates, induces, promotes)adjective + interleukin 2 (recombinant, exogenous, endogenous)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Rare, except in pharmaceutical/biotech contexts discussing drug development.
Academic
Common in immunology, medicine, and biochemistry research papers.
Everyday
Virtually never used in casual conversation.
Technical
Standard term in clinical medicine, laboratory science, and immunology.
Examples
By Part of Speech
verb
British English
- The cells were stimulated to interleukin 2 production.
- Researchers interleukin 2-treated the culture.
American English
- The cells were stimulated to produce interleukin 2.
- Researchers treated the culture with interleukin 2.
adverb
British English
- The cells responded interleukin-2-specifically.
- The assay was performed interleukin-2-dependently.
American English
- The cells responded specifically to interleukin 2.
- The assay depended on interleukin 2.
adjective
British English
- The interleukin-2 receptor was upregulated.
- An interleukin-2-dependent cell line was used.
American English
- The interleukin-2 receptor was upregulated.
- An interleukin-2-dependent cell line was used.
Examples
By CEFR Level
- Interleukin 2 is a medicine for some cancers.
- Doctors use interleukin 2 in hospitals.
- Interleukin 2 helps the body fight diseases.
- Some cancer treatments include interleukin 2.
- Interleukin 2 stimulates the growth of immune cells called T lymphocytes.
- Clinical trials have shown interleukin 2 can be effective against metastatic melanoma.
- The recombinant interleukin 2 therapy induced significant tumor regression in a subset of patients.
- Binding of interleukin 2 to its high-affinity receptor triggers a cascade of intracellular signaling events.
Learning
Memory Aids
Mnemonic
INTERleukin helps the INTERnal immune system communicate; 2 reminds you it's the second discovered in the interleukin family.
Conceptual Metaphor
Immune system messenger (as a 'signal' or 'communication molecule' between cells).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'межлейкин' (non-existent calque); correct Russian term is 'интерлейкин 2'.
- Don't confuse with 'интерферон' (interferon) which is a different cytokine.
Common Mistakes
- Writing 'interlukin' (missing 'e')
- Saying 'interleukin two' instead of 'interleukin 2' in formal contexts
- Using without the number (just 'interleukin') which is ambiguous
Practice
Quiz
What is the primary function of interleukin 2?
FAQ
Frequently Asked Questions
No, it's classified as a cytokine—a signaling protein of the immune system—though it functions similarly to hormones in cell communication.
No, it's a protein that would be digested. It's administered by injection or infusion in clinical settings.
Primarily certain cancers (renal cell carcinoma, metastatic melanoma) and sometimes used in immunotherapy research.
Yes, it's produced by activated T cells as part of the normal immune response.