Interleukin 32

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Interleukin 32
Symbols IL32 ; IL-32alpha; IL-32beta; IL-32delta; IL-32gamma; NK4; TAIF; TAIFa; TAIFb; TAIFc; TAIFd
External IDs OMIM606001 HomoloGene128400 GeneCards: IL32 Gene
Species Human Mouse
Entrez 9235 n/a
Ensembl ENSG00000008517 n/a
UniProt P24001 n/a
RefSeq (mRNA) NM_001012631 n/a
RefSeq (protein) NP_001012649 n/a
Location (UCSC) Chr 16:
3.12 – 3.13 Mb
PubMed search [1] n/a

Interleukin 32 is a protein that in humans is encoded by the IL32 gene.[1]


This gene encodes a member of the cytokine family. The protein contains a tyrosine sulfation site, 3 potential N-myristoylation sites, multiple putative phosphorylation sites, and an RGD cell-attachment sequence. Expression of this protein is increased after the activation of T-cells by mitogens or the activation of NK cells by IL-2. This protein induces the production of TNF-alpha from macrophage cells. Alternate transcriptional splice variants, encoding different isoforms, have been characterized.[1]

Interleukin 32 (IL-32) is a pro-inflammatory cytokine that can induce cells of the immune system (such as monocytes and macrophages) to secrete inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α) and IL-6. In addition, it can also induce the production of chemokines such as IL-8 and MIP-2 / CXCL2.[2]

IL-32 can also support osteoclast differentiation but not osteoclast activation by regulating the MAPK/ERK pathway and the actin cytoskeleton.[3]


  1. ^ a b "Entrez Gene: Interleukin 32". 
  2. ^ Kim SH, Han SY, Azam T, Yoon DY, Dinarello CA (January 2005). "Interleukin-32: a cytokine and inducer of TNFalpha". Immunity 22 (1): 131–42. doi:10.1016/j.immuni.2004.12.003. PMID 15664165. 
  3. ^ Mabilleau G, Sabokbar A (2009). "Interleukin-32 promotes osteoclast differentiation but not osteoclast activation". PLoS ONE 4 (1): e4173. doi:10.1371/journal.pone.0004173. PMC 2613539. PMID 19137064. 

This article incorporates text from the United States National Library of Medicine, which is in the public domain.