Table 1 Common cytokines and their features

From: Deep insight into cytokine storm: from pathogenesis to treatment

Cytokines

Main cell type

Major Function

IL-1

Macrophages, epithelial cells, pyroptic cells

Pro-inflammatory; pyrogenic; macrophage activation; Th17 cells differentiation.563

IL-2

T cells

Autoimmunity regulation; T cell proliferation and differentiation; Teff generation; Treg maintenance.564

IL-4

Mast cells, Th2 cells, eosinophils, and basophils

Anti-inflammatory; IgE production; Th2 differentiation; M2 macrophage polarization155

IL-6

Macrophages, T cells, fibroblasts, endothelial cells

Pro-inflammatory; acute phase response; pyrogenic; angiogenic; T cell differentiation; enhanced antibody production, increased vascular permeability.565

IL-9

Th9 cells, type 2 innate lymphoid cells, Tc9 cells, Vδ2 T cells, mast cells

Pleiotropic; anti-tumor; T cells and B cells regulation; mast cells activation.566

IL-10

Th2 cells, Treg cells, CD8+ T cells, B cells

Anti-inflammatory; suppression of immune response; inhibition of macrophage activation; inhibition of Th1 cells; Treg response.567

IL-12

DCs, macrophages

Th1 cell differentiation; activation of T and NK cells; inhibition of immunosuppressive cells; induction of IFN-γ production; action in synergy with IL-18.568

IL-13

Th2 cells

Anti-inflammatory; B cell proliferation; activation of eosinophils, basophils, and mast cells.569

IL-17

Th17 cells, Tc17 cells, NK cells, γδ T cells, type 3 innate lymphoid cells

Pro-inflammatory; bacterial elimination; induction of cytokines and chemokines; immune cell recruitment.570

IL-18

Macrophages, DCs

Pro-inflammatory; activation of Th1 cells; action in synergy with IL-12.571

IL-21

Tfh cells

Pro-inflammatory; B cell activation; CD8+ T differentiation and activation.572

IL-22

Th1, Th17, Th22, CD8+ T cells, γδ T cells, NK cells, neutrophils

Regulation of host defense and epithelial homeostasis; antimicrobial.573

IL-31

Th2 cells, macrophages, DCs, eosinophils, mast cells, fibroblasts and keratinocytes

Pro-inflammatory; cell mediated immunity; itch mediator.574

IL-33

Endothelial cells, epithelial cells, macrophages, DCs, mast cells

Pro-inflammatory; activation of Th1, Th2, NK cells, CD8+ T cells; allergic inflammation.575

IL-37

Macrophages, DCs, epithelial cells, Treg cells

Anti-inflammatory; suppression of innate inflammatory and immune responses.576

Type I IFN

Virtually all body cells

Antimicrobial activity; modulation of innate immune responses; activate the adaptive immune system.577

Type II IFN

NK cells, Th1 cells, cytotoxic T cells

Proinflammatory; antiviral immunity, regulation of innate and adaptive immune responses.578

TGF-β

Almost every tissue and cell type

Immunosuppressive; oncogenic; regulation of cell proliferation, embryonic development, wound healing, and immune response.579

TNF

T cells, NK cells, macrophages, mast cells

Pyrogenic; increasing vascular permeability.580

  1. DCs dendritic cells, IL interleukin, Th cells helper T cells, Teff effector T cells, Treg regulatory T cells, NK natural killer T cells, Tfh follicular helper T cells, TGF tumor growth factor, TNF tumor necrosis factor