Component
Study-specific phase II enzyme induction
Study-specific phase II enzyme induction. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Dominant-negative Nrf2 abolished the carotenoid-induced rise in phase II enzymes.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_span
- {"source_cache": "artifacts/lycopene-research/15657364.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a25b93d6074a1e560bf1e163aa70c511e99199b9bb62ccdffdbe70e51fcc7c32", "start_char": 0, "end_char": 1890, "text_sha256": "a25b93d6074a1e560bf1e163aa70c511e99199b9bb62ccdffdbe70e51fcc7c32"}
- experimental_model
- Reporter, expression and dominant-negative transcription-factor experiments
- exposure
- Lycopene and ethanolic derivative extract
- limitations
- Unidentified derivative extract was active; direct binding of intact lycopene to KEAP1 was not established.
- nutrient_topic
- Lycopene research collection; topical membership is not evidence of a direct dietary effect. · Lycopene
- organism
- Human cancer cell cultures
- plain_language
- A signaling compound cannot produce this response when the experimental gene-control machinery is blocked.
- primary_references
- [lycopene-p15657364] Carotenoids activate the antioxidant response element transcription system. (2005). https://pubmed.ncbi.nlm.nih.gov/15657364/ DOI: 10.1158/1535-7163.177.4.1
- tissue_or_cell_type
- ARE transcription and phase II enzyme expression
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Lycopene: absorption, metabolism, nutrient connections and human outcomes (2026-09-17) · lines 481–492
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Reporter, expression and dominant-negative transcription-factor experiments · source_derived_draft · unverified_draft
### lycopene-nrf2-required Dominant-negative Nrf2 abolished the carotenoid-induced rise in phase II enzymes. Condition category: machinery_impairment nutrient_topic: Lycopene research collection; topical membership is not evidence of a direct dietary effect. plain_language: A signaling compound cannot produce this response when the experimental gene-control machinery is blocked. organism: Human cancer cell cultures tissue_or_cell_type: ARE transcription and phase II enzyme expression experimental_model: Reporter, expression and dominant-negative transcription-factor experiments limitations: Unidentified derivative extract was active; direct binding of intact lycopene to KEAP1 was not established. exposure: Lycopene and ethanolic derivative extract evidence_span: {"source_cache": "artifacts/lycopene-research/15657364.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a25b93d6074a1e560bf1e163aa70c511e99199b9bb62ccdffdbe70e51fcc7c32", "start_char": 0, "end_char": 1890, "text_sha256": "a25b93d6074a1e560bf1e163aa70c511e99199b9bb62ccdffdbe70e51fcc7c32"} [lycopene-p15657364] Carotenoids activate the antioxidant response element transcription system. (2005). https://pubmed.ncbi.nlm.nih.gov/15657364/ DOI: 10.1158/1535-7163.177.4.1
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.