Annexin A1

Annexin A1 (or Lipocortin I) is a human protein encoded by the ANXA1 gene.

The gene for annexin A1 (ANXA1) is upregulated in hairy cell leukemia.

ANXA1 protein expression is specific to hairy cell leukemia.

Detection of ANXA1 (by immunocytochemical means) reportedly provides a simple, highly-sensitive and specific assay for the diagnosis of hairy cell leukemia.

Glucocorticoid stimulate production of lipocortin.