Common Gamma-Chain Cytokine Family

The common gamma chain (γc) cytokine family comprises interleukin-2 (IL-2), IL-4, IL-7, IL-9, IL-15 and IL-21, named after the γc subunit (CD132) shared by receptor complexes for these cytokines. Common gamma-chain cytokine signals provide pro-survival cues, inhibit pro-apoptotic signals, upregulate metabolic activities and promote expression of select transcription factors, which determine lineage fate and maturation of lymphocyte subsets.

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Common Gamma-Chain Cytokine Family Table

The common gamma-chain (γc) is shared by common gamma-chain cytokine family, thus the flollowing lists common γc cytokine family members, cognate receptors and cell sources.

Ligand Receptor Cell sources
IL2/IL-2/Interleukin-2 CD25/IL2RA, CD122 / IL-2RB, CD132 / IL2RG T cells and DCs
IL4/IL-4/Interleukin-4 IL-4R/CD124, CD132 / IL2RG T cells, NKT cells, eosinophils and mast cells
IL7/IL-7/Interleukin-7 CD127/IL-7RA, CD132 / IL2RG stromal cells, epithelial cells and fibroblasts
IL-9 CD129 /IL-9R, CD132 / IL2RG T cells
IL15/IL-15/Interleukin 15 CD215/IL-15 R alpha, CD122 / IL-2RB,
CD132 / IL2RG
monocytes, DCs and epithelial cells
IL21/IL-21 IL-21R, CD132 / IL2RG CD4+ T cells and NKT cells

Common Gamma-Chain Cytokine Family Review

Members of the common gamma-chain cytokine family play distinct and nonredundant roles in the adaptive immune system, and especially in the development and differentiation of T lymphocytes.

The importance of the common gamma-chain in the immune system is illustrated by the profound phenotype associated with gamma-chain gene deficiency that manifests as T-, NK cell deficiency in humans and as T-, B-, NK cell deficiency in mice. Thus, common gamma-chain expression is a non-redundant requirement for lymphocytes, and especially critical for T cells in both humans and mice.

The following are outlines of "Common Gamma-Chain Cytokine Family Review Page", which briefly introduce each member of common Gamma-chain cytokine family. If you want more details, please click here.

• Interleukin-2 (IL-2) • Interleukin-7 (IL-7)
• Interleukin-15 (IL-15) • Interleukin-4 (IL-4)
• Interleukin-9 (IL-9) • Interleukin-21 (IL-21)