Nitric oxide macrophages

I IS. Hibbs-. B, Taintor, R. R., Vavrm, Z., and Rachlin, E. M. (1988). Nitric oxide A cytotoxic activated macrophage effector molecule. Biochem. Biophys. Res. Commun. 1.57, 87-99,... 

Scarei S., Giovine M., Gasparini A., Damonte G., Millo E., Pozzolini M., Benatti U. Modified peptide nucleic acids are internalized in mouse macrophages RAW 264.7 and inhibit inducible nitric oxide synthase. FEB. S. Lett. 1999 451 264-268. 

Mouse peritoneal macrophages that have been activated to produce nitric oxide by 7-interferon and lipopolysac-charide were shown to oxidize LDL less readily than unactivated macrophages. Inhibition of nitric oxide synthesis in the same model was shown to enhance LDL oxidation (Jessup etal., 1992 Yates a al., 1992). It has recently been demonstrated that nitric oxide is able to inhibit lipid peroxidation directly within LDL (Ho etal., 1993c). Nitric oxide probably reacts with the propagating peroxyl radicals thus terminating the chain of lipid peroxidation. The rate constant for the reaction between nitric oxide and peroxyl radicals has recently been determined to be 1-3 X10 M" s (Padmaja and Huie, 1993). This... 

Di Rosa, M., Radomski, M., Carnuccio, R. and Moncada, S. (1990). Glucocorticoids inhibit the induction of nitric oxide synthase in macrophages. Biochem. Biophys. Res. Commun. 173, 1246-1252. 

Dirsch, V. M. Kiemer, A. K. Wagner, H. Vollmar, A. M. The triterpenoid quinonemethide pristimerin inhibits induction of inducible nitric oxide synthase in murine macrophages. Eur. J. Pharm. 1997, 336, 211-217. 

B2. Balligand, J. L., Ungureanu, D Kelly, R. A., Kobzik, L., Pimental, D Michel, T and Smith, T. W., Abnormal contractile function due to induction of nitric oxide synthesis in rat cardiac myocytes follows exposure to activated macrophage-conditioned medium. J. Clin. Invest. 91, 2314-2319(1993). 

Hong CH, Sun KH, Jin O, Sun SK, Kyung AN, Sang KL. Evaluation of natural products on inhibition of inducible cyclooxygenase (COX-2) and nitric oxide synthase (iNOS) in cultured mouse macrophage cells. J Ethnopharmacol 2002 83 153-159. 

Lastra AL, Ramirez TO, Salazar L, Martinez M, Trujillo-Ferrara J. The ambrosanolide cumanin inhibits macrophage nitric oxide synthesis some structural considerations. J Ethnopharmacol 2004 95 221-227. 

Rafi, MM and Shafaie, Y, 2007. Dietary lutein modulates inducible nitric oxide synthase (iNOS) gene and protein expression in mouse macrophage cells (RAW 264.7). Mol Nutr Food Res 51, 333-340. 

NO is a gaseous neurotransmitter implicated in signaling in the central and peripheral nervous system as well as in the immune system and the vasculature. NO is formed from L-arginine by nitric oxide synthase (NOS). There are three isoforms of NOS. All isoforms require NADPH as a cofactor, use L-arginine as a substrate, and are inhibited by Nw-nitro-L-arginine methyl ester (L-NAME). The three isoforms are separate gene products. One isoform of NOS is a cytosolic, calcium/calmodulin-independent, inducible enzyme (iNOS). It is found in macrophages, neutrophils, vascular smooth muscle, and endothelia. The iNOS... 

Taylor, M.J., Cross, H.F., Mohammed, A.A., Trees, A.J. and Bianco, A.E. (1996) Susceptibility of Brugia malayi and Onchocerca lienalis microfilariae to nitric oxide and hydrogen peroxide in cell-free culture and from IFN gamma-activated macrophages. Parasitology 112, 315-322. 

Sakata K, Hirose Y, Qiao Z, Tanaka T and Mori H. 2003. Inhibition of inducible isoforms of cyclooxygenase and nitric oxide synthase by flavonoid hesperidin in mouse macrophage cell line. Cancer Lett 199(2)439-145. 

It has been shown [42] that N02 and N03 are formed by stimulated macrophages simultaneously with nitric oxide supposedly via the interaction of NO with superoxide. Not all of the above mentioned reactions are rapid processes. For example, Reaction (16) is rather slow (k16< 1.3 x 10 31 mol-1 s 1 [43]). 

To study the effects of iron overloading on inflammatory cells, Muntane et al. [186] investigated the effect of iron dcxtran administration on the acute and chronic phases of carrageenan-induced glanuloma. It was found that iron dcxtran increased the iron content in plasma and stores, and enhanced lipid peroxidation and superoxide production by inflammatory cells. At the same time, iron dcxtran had a beneficial effect on recovery from the anemia of inflammation. It has been suggested that iron overload may affect nitric oxide production in animals. For example, alveolar macrophages from iron-overloaded rats stimulated with LPS or interferon-7 diminished NO release compared to normal rats [187]. 

---