N-3 immunoresolvents: structures and actions
The invention describes novel mono-hydroxy, di-hydroxy and tri-hydroxy docosapentaenoic acid (DPA) analogs, their preparation, isolation, identification, purification and uses thereof. Resolution of inflammation is now held to be an active process where autacoids promote homeostasis. Using functional-metabololipidomics and in vivo systems, endogenous n-3 docosapentaenoic (DPA) acid is converted during inflammation-resolution in mice and by human leukocytes to novel n-3 products congenerous to D-series resolvins (Rv), protectins (PD) and maresins (MaR), termed specialized pro-resolving mediators (SPM). The new n-3 DPA structures include 7,8,17-trihydroxy-9,11,13,15E, 19Zdocosapentaenoic acid (RvD1n_3 DPA), 7, 14-dihydroxy-8, 10, 12, 16Z, 19Z-docosapentaenoic acid (MaR1n_3 DPA) and related bioactive products.
1. A compound having the formulae:
wherein each of P 1 , P 2 and/or, P 3 when present, individually is a protecting group or a hydrogen atom;
when present, represents a double bond; and
wherein Z is COOH and P 1 , P 2 and/or, P 3 when present are not all hydrogen atoms.
2. The compound of claim 1 , wherein the compound has the formulae:
wherein P 1 , P 2 and/or P 3 , when present, individually are hydrogen atoms or a protecting group; and
wherein Z is COOH and P 1 , P 2 and/or, P 3 when present are not all hydrogen atoms.