Skip to main content
. 2018 Jan 10;8:1960. doi: 10.3389/fimmu.2017.01960

Table 1.

Summary of some immune changes associated with aging in innate and adaptive immune systems.

Features Increase Decrease No change
Innate immunity
Phagocytosis
Free radical production
Chemotaxis
Cytokine production
Myeloid cell number

Adaptive immunity
Naïve cell number
Memory cell number
T regulatory cell number
T regulatory cell function
Proliferation
IL-2 production
B regulatory cell number/function
B cell immunoglobulin production
B cell autoantibody production

Changes are indicated with a checkmark (√) and, absence of changes with a horizontal bar (─).