Fn14, the TWEAK receptor, is a recently identified member of the TNF receptor superfamily and is expressed on smooth muscle cells and endothelial cells. It is a weak inducer of apoptosis and promotes angiogenesis. Fn14 is a type 1 membrane protein. It associates with TRAF1 and TRAF2, and may modulate cellular adhesion to matrix proteins. Fn14 is highly expressed in heart, placenta and kidney, and moderately expressed in lung, skeletal muscle and pancreas. It is the smallest member of the TNF receptor (TNFR) superfamily described to date, and signals via recruitment of several different TNFR-associated factors.
Background References
1. Xia L et al. ThPOK transcriptionally inactivates TNFRSF12A to increase the proliferation of T cells with the involvement of the NF-kB pathway. Cytokine. 2021 Dec
2. Wu ZH et al. Decreased expression of TNFRSF12A in thyroid gland cancer predicts poor prognosis: A study based on TCGA data. Medicine (Baltimore). 2020 Aug
Tissue Specificity
Highly expressed in heart, placenta and kidney. Intermediate expression in lung, skeletal muscle and pancreas.
ICC staining TWEAKR in MCF-7 cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining TWEAKR in SiHa cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded human colon cancer tissue using anti-TWEAKR antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded human placenta tissue using anti-TWEAKR antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse testis tissue using anti-TWEAKR antibody. Counter stained with hematoxylin.
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