Immune System Diseases

The grounding supports immune dysregulation as the central cause, including abnormal or absent humoral and/or cell-mediated immune mechanisms. It also links immune-mediated disease to autoimmunity and to dysbiosis-related immune disturbance, but does not support a single unified aetiology for the category as a whole.

The biological basis is failure of normal immune function, with downstream abnormalities in cytokine signaling, T-cell subset balance, and costimulatory pathways. The supplied literature also points to immune dysfunction involving Th17 cells, regulatory and helper T-cell subsets, and altered interactions between immune cells and tissue targets.

The grounding does not support specific risk factors for immune system diseases as a category. It does indicate that gut microbiota dysbiosis, diet, and antibiotics can contribute to immune dysregulation in some immune-mediated contexts, but not as universal risk factors.

The supplied material supports treatment at the level of broad modalities such as drug therapy and therapy, but does not define a single standard regimen for this category. It also references immunotherapy-related approaches in the broader immune-disease literature, including immune checkpoint inhibition and T-cell engaging therapies, but these are not presented as standard care for immune system diseases overall.