IMMUNE OSby Allerim

tissue

Bone Marrow Immune Ecosystem

Primary hematopoietic niche where immune supply, plasma-cell survival, trained myeloid output, and inflammatory demand are coupled

hematopoiesisplasma cellstrained immunitymyelopoiesisimmune reserve

Review layer

Last reviewed 2026-05-17

conceptualeducational

Systems teaching draft. Content is structured for education and graph expansion, with formal source tagging ready for the next review pass.

State signature

Systems profile

Inflammation86
Tolerance45
Metabolism82
Tissue62
Neuroimmune38
Chronicity78

Tissue ecosystem

Spatial immune niche

niche

Bone Marrow

Barrier

endosteal nichevascular sinusoid nicheCXCL12 stromal network

Cells

hematopoietic stem cellsmyeloid progenitorsB cellsplasma cells

Cytokines

G-CSFGM-CSFIL-7IL-6

Neuroimmune

sympathetic regulation of stem-cell egressstress effects on leukocyte outputcircadian trafficking rhythms

Graph neighborhood

Direct relationships

Full graph

Emergency myelopoiesis raises neutrophil supply during infection or inflammatory demand

Bone marrow survival niches maintain long-lived plasma cells and durable antibody output

Bone remodeling and marrow niches are coupled through osteoblast, osteoclast, stromal, and hematopoietic signaling

Emergency myelopoiesis raises marrow neutrophil output during high innate demand

Immune niche

Tissue Ecology

Bone marrow is the immune system's production and memory-support organ. Stromal niches, cytokines, sympathetic tone, iron metabolism, and inflammatory demand determine leukocyte output, antibody durability, and emergency myelopoiesis.

Dominant immune cells

hematopoietic stem cellsmyeloid progenitorsB cellsplasma cellsmacrophages

Barrier systems

endosteal nichevascular sinusoid nicheCXCL12 stromal networkmarrow-blood trafficking gates

Microbiome interactions

microbial products can tune myelopoiesisSCFAs influence hematopoietic toneinfection history can shift trained innate output

Neuroimmune interactions

sympathetic regulation of stem-cell egressstress effects on leukocyte outputcircadian trafficking rhythms

Cytokine environment

G-CSFGM-CSFIL-7IL-6CXCL12

Metabolic conditions

iron availabilityhypoxic stem-cell nichemitochondrial restrainthigh demand during emergency hematopoiesis