Interdigitating cells (reticulum cells, thymus macrophages), mouse anti human, clone X-12

DEF-3 recognizes a family of cyclic peptides (MW < 3500) in human neutrophils. Four of these peptides (HNP-1 to HNP-4) are described in humans and six (NP-1 to NP-5) in rabbits. The NP-3 is also called corticostatin. In macrophages, synonyms for NP-1 and NP-2 are MCP-1 and MCP-2, respectively. The function of these peptides apart from their bactericidal, antifungal, and monocyte chemotactic functions is the inhibition of ACTH-induced corticosteroid synthesis. DEF-3 is a further marker for inflammation typing. Application: IHC (f, p), FACS Defensin HNP-1 (human) and Defensin HNP-2 (human) are Bachem catalog products (H-9855, H-9005).