Invitrogen™ RELM alpha Polyclonal Antibody

Description

Reconstitute at 0.2 mg/mL in sterile PBS.

RELM alpha, also known as Resistin-like alpha or FIZZ1, is a small cytokine (88 aminoacids, MW 9.4 kDa) produced mostly by macrophages. Its highest constitutive expression has been observed in small peritoneal macrophages, alveolar macrophages and adipose tissue macrophages. It is strongly induced by IL-4 and IL-13. Together with Arginase 1 and Ym-1, RELM alpha is considered one of the hallmarks of the M2 polarization of mouse macrophages, however, macrophages polarized with IL-10 (M2c) express neither RELM alpha nor Arginase 1. Also, the expression patterns of RELM alpha and Arginase 1 in untreated tissue macrophages significantly differ. Elevated levels of RELM alpha may indicate parasitic infection. Humans do not have RELM alpha gene but human Resistin resembles mouse RELM alpha in respect to sequence, tissue distribution and function. Other members of RELM family in mouse: RELM beta, RELM gamma and Resistin display different tissue distribution and functional properties. RELM alpha plays an important role in parasite infection, mucosal inflammation and allergy.