Component
Immunoglobulin A
IgA antibody class; production and tissue localization are separate outcomes.
2 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
RA alone was insufficient for IgA secretion but cooperated with IL-6 or IL-5 to induce it.
Experimental context and source evidence
- evidence_locator
- Abstract
- experimental_model
- Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice.
- exposure
- RA with IL-6 or IL-5
- limitations
- Cannot generalize to every IgA-switching pathway.
- nutrient_topic
- Vitamin A research collection; topical membership is not evidence of a direct dietary effect. · Vitamin A
- organism
- Mus musculus
- plain_language
- IgA output required additional immune signals in this experiment.
- primary_references
- [va-mora-2006] Generation of gut-homing IgA-secreting B cells by intestinal dendritic cells (2006). https://pubmed.ncbi.nlm.nih.gov/17110582/ DOI: 10.1126/science.1132742
- tissue_or_cell_type
- B-cell cultures
Vitamin A: forms, mechanisms, deficiency and excess (2026-09-17) · lines 1227–1238
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice. · source_derived_draft · unverified_draft
### va-sig-ra-cytokine-iga RA alone was insufficient for IgA secretion but cooperated with IL-6 or IL-5 to induce it. Condition category: normal nutrient_topic: Vitamin A research collection; topical membership is not evidence of a direct dietary effect. plain_language: IgA output required additional immune signals in this experiment. organism: Mus musculus tissue_or_cell_type: B-cell cultures experimental_model: Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice. limitations: Cannot generalize to every IgA-switching pathway. evidence_locator: Abstract exposure: RA with IL-6 or IL-5 [va-mora-2006] Generation of gut-homing IgA-secreting B cells by intestinal dendritic cells (2006). https://pubmed.ncbi.nlm.nih.gov/17110582/ DOI: 10.1126/science.1132742
Complete structured claim and evidence
Where it participates (unsigned role)
Vitamin A-deficient mice lacked IgA-secreting cells in the small intestine.
Experimental context and source evidence
- availability_state
- nutrient_deficiency Imported condition classification; unverified.
- evidence_locator
- Abstract
- experimental_model
- Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice.
- exposure
- Vitamin A-deficient diet
- limitations
- Migration and differentiation contributions are not interchangeable.
- nutrient_topic
- Vitamin A research collection; topical membership is not evidence of a direct dietary effect. · Vitamin A
- organism
- Mus musculus
- plain_language
- Depletion reduced the local antibody-secreting cell compartment.
- primary_references
- [va-mora-2006] Generation of gut-homing IgA-secreting B cells by intestinal dendritic cells (2006). https://pubmed.ncbi.nlm.nih.gov/17110582/ DOI: 10.1126/science.1132742
- tissue_or_cell_type
- Small intestine
- trigger_kind
- nutrient_deficiency Imported condition classification; unverified.
Vitamin A: forms, mechanisms, deficiency and excess (2026-09-17) · lines 1240–1251
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice. · source_derived_draft · unverified_draft
### va-sig-deficient-intestinal-iga Vitamin A-deficient mice lacked IgA-secreting cells in the small intestine. Condition category: nutrient_deficiency nutrient_topic: Vitamin A research collection; topical membership is not evidence of a direct dietary effect. plain_language: Depletion reduced the local antibody-secreting cell compartment. organism: Mus musculus tissue_or_cell_type: Small intestine experimental_model: Mouse B-cell/dendritic-cell systems and vitamin A-deficient mice. limitations: Migration and differentiation contributions are not interchangeable. evidence_locator: Abstract exposure: Vitamin A-deficient diet [va-mora-2006] Generation of gut-homing IgA-secreting B cells by intestinal dendritic cells (2006). https://pubmed.ncbi.nlm.nih.gov/17110582/ DOI: 10.1126/science.1132742
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.