Component
Human Janus kinase 2 / JAK2
Context-specific entity; species, compartment and exposure are stated on each 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.
Where it participates (unsigned role)
Silencing STAT3 or JAK2 did not reproduce cucurbitacin I-mediated Rac1 inhibition in the tested human breast-cancer cells.
Experimental context and source evidence
- availability_state
- machinery_impairment Imported condition classification; unverified.
- evidence_access
- Primary abstract
- experimental_model
- RNA interference in human breast-cancer cells.
- limitations
- Negative pathway test is limited to these endpoints and cells; it does not show that all JAK/STAT effects are absent.
- nutrient_topic
- Cucurbitacins collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · Cucurbitacins
- plain_language
- Removing the familiar signaling pathway did not explain this movement effect.
- primary_references
- Cucurbitacin I inhibits Rac1 activation in breast cancer cells by a reactive oxygen species-mediated mechanism and independently of Janus tyrosine kinase 2 and P-Rex1. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23478800/ · DOI 10.1124/mol.112.084293
- trigger_kind
- machinery_impairment Imported condition classification; unverified.
Cucurbitacins: thiol chemistry, cytoskeleton, metabolic dependencies and signaling (2026-09-20) · lines 172–178
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · RNA interference in human breast-cancer cells. · source_derived_draft · unverified_draft
## cucurbitacin-i-jak-stat-knockdown Removing the familiar signaling pathway did not explain this movement effect. Silencing STAT3 or JAK2 did not reproduce cucurbitacin I-mediated Rac1 inhibition in the tested human breast-cancer cells. Model: RNA interference in human breast-cancer cells. Limitations: Negative pathway test is limited to these endpoints and cells; it does not show that all JAK/STAT effects are absent. Evidence access: Primary abstract Cucurbitacin I inhibits Rac1 activation in breast cancer cells by a reactive oxygen species-mediated mechanism and independently of Janus tyrosine kinase 2 and P-Rex1. · 2013 · https://pubmed.ncbi.nlm.nih.gov/23478800/ · DOI 10.1124/mol.112.084293
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.