cell
Memory B Cell
Long-lived recall cell preserving antigen experience and enabling rapid secondary antibody responses
Review layer
Last reviewed 2026-05-17
Systems teaching draft. Content is structured for education and graph expansion, with formal source tagging ready for the next review pass.
Provenance layer
External context
Curated external IDs add pathway and protein context around Atlas content. They do not update the graph automatically and they are not patient-specific interpretation.
Appears in response traces
State signature
Systems profile
System effects
Primary mapped axes from existing Atlas data.
Chronicity
Memory, priming, fibrosis, exhaustion, remodeling, or other time-dependent drift.
Tissue
Organ, barrier, stromal, vascular, or local niche behavior.
Metabolism
Energy allocation, glycolysis, mitochondrial strain, lipid signaling, or nutrient-sensitive behavior.
Local map
Relationship field
Arrows point from the upstream source toward the receiving target. Restraint edges use a bar; association edges stay dashed because they are not causal arrows.
Selected relationship
Selected germinal-center cells become memory B cells
Read as source supporting or biasing the target state.
What this relationship means
Read this as Germinal Center B Cell influencing Memory B Cell; the arrow names the direction, while the details explain the likely system domain.
Effect of source
Germinal Center B Cell is the upstream signal or context.
Effect on target
Memory B Cell is the receiving node whose behavior may shift.
Use with caution
Use this as a map-reading aid, not as diagnosis, triage, treatment guidance, or a risk score.
System effect
Germinal Center B Cell influences Memory B Cell; the axes below show which mapped systems carry that relationship.
Inflammation
Inflammatory alarm, recruitment, mediator release, or tissue-damaging amplification.
Tissue
Organ, barrier, stromal, vascular, or local niche behavior.
Chronicity
Memory, priming, fibrosis, exhaustion, remodeling, or other time-dependent drift.
Axes are mapped cues from Atlas data, not clinical predictions.
Evidence context
Curated edge, reviewed endpoints, and mapped external anchors.
Signaling by the B Cell Receptor (BCR)
R-HSA-983705 - checked 2026-06-28
Graph neighborhood
Direct relationships
Arrow shows upstream source toward receiving target.
Selected germinal-center cells become memory B cells
Network behavior
Systems Overview
Memory B cells retain antigen experience and can rapidly reactivate into germinal-center or plasma-cell programs after re-exposure.
Lineage
Origin
Germinal-center or extrafollicular response -> memory B-cell pool -> recall plasmablast or renewed germinal-center entry
Transcription factors: PAX5, BACH2, BCL2, TCF1-like memory programs
Lifecycle Visualizer
weeks
Selection
Survives germinal-center output
months-years
Quiescence
Long-lived recall pool
hours-days
Recall activation
Rapid antigen response
days-weeks
Secondary fate
Plasmablast or germinal center
Activation and Suppression
Activators
Suppressors
Surface and Secreted Signals
Surface markers
Secretions
Metabolic State
Programs
Acute: Recall activation quickly generates plasmablasts and higher-affinity antibody.
Chronic: Repeated stimulation can skew memory pools, support autoimmunity, or exhaust useful diversity.
Tissue Roles
lymphoid: Recall response coordination and secondary germinal-center entry.
gut: Mucosal memory and IgA recall.
lung: Respiratory pathogen and vaccine recall.
skin: Can support recall antibody responses after barrier antigen exposure.
Disease Associations
Clinical Pearls
- Switched memory B cells are often central in CVID phenotyping.
- Memory quality explains why prior exposure does or does not protect.
- Recall is faster because the system has already paid the selection cost.