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Most malignancies displayed moderate cytoplasmic positivity often combined with nuclear staining. A few cases of malignant melanomas, pancreatic, colorectal, breast and female genitalia cancers showed strong staining.
GENE INFORMATION
Gene name
HRH4 (HGNC Symbol)
Synonyms
AXOR35, GPCR105, GPRv53, H4R, HH4R
Description
Histamine receptor H4 (HGNC Symbol)
Entrez gene summary
Histamine is a ubiquitous messenger molecule released from mast cells, enterochromaffin-like cells, and neurons. Its various actions are mediated by a family of histamine receptors, which are a subset of the G-protein coupled receptor superfamily. This gene encodes a histamine receptor that is predominantly expressed in haematopoietic cells. The protein is thought to play a role in inflammation and allergy reponses. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2009]