Table 2 Compartments of the immune system modeled by ENISI.
Tissue type | Description |
|---|---|
Lumen | The inner open space of a tubular organ such as the stomach or intestine. |
Epithelium (Ep) | The thin monolayer of epithelial cells separating the lumen and LP. The epithelium is composed of several subsets of epithelial cells, but intraepithelial lymphocytes can also be present. |
Lamina propria (LP) | The connective tissue underlying the Ep where most of the immune cells associated with the stomach mucosa reside. LP is an effector site. |
Draining lymph nodes (LNs) | The secondary lymphoid organs draining the gastrointestinal tract. The LNs are inductive sites of the mucosal immune system; where immune responses are induced. |
Blood | The source for the monocytes such as Macrophages, dendritic cells, and neutrophils. |