Antiinflammatory and Wound Healing Effects of Caesalpinia sappan L.

Abstract

Extracted compounds from Caesalpinia sappan L. were examined for the inhibitory activity against NO, PGE2 , and TNF-α productions and on associated transcription levels using RAW264.7 cells. They were also tested for their effects on wound healing using fibroblast L929 cells. Among the compounds tested, brazilin (8) was the most effective against lipopolysaccharide (LPS)-induced NO production in RAW264.7 cells with an IC50 value of 10.3 μM, followed by sappanchalcone (2, 31.0 μM). Brazilin (8) also inhibited PGE2 and TNF-α production with IC50 values of 12.6 and 87.2 μM, respectively. The antiinflammatory mechanism of brazilin involved down regulation of the mRNA expressions of the iNOS, COX-2, and TNF-α genes in a dose-dependent manner. An ethanol (EtOH) extract of C. sappan significantly increased fibroblast proliferation, fibroblast migration, and collagen production, whereas brazilin (8) only stimulated fibroblast migration. In addition, the EtOH extract showed no acute toxicity in mice, and it was therefore safe to make use of its potent antiinflammatory and wound healing activities. Brazilin was mainly responsible for its antiinflammatory effect through its ability to inhibit the production of NO, PGE2 , and TNF-α. This study supports the traditional use of C. sappan for treatment of inflammatory-related diseases.

Inhibition of MMP-13 with modified polymer particles

“…The molecules that resulted in a more modest inhibition of MMP-13 are N w -nitro-Larginine, 2-amino-3-guanidinopropionic acid, and creatine. N w -nitro-L-arginine is an antagonist of NO synthase, [46,51,52] meaning that less NO will be produced in its presence. In an in vitro or in vivo context, this inhibition of NO may reduce the cleavage of MMP-13 from cells.…”

Anti‐inflammatory effect of isopimarane diterpenoids from Kaempferia galanga

“…The method was modified from Tewtrakul et al (). RAW264.7 cells (1 × 10 5 cells/well) in 96‐well microplate were treated as follows: negative control (N) = (−)LPS/(−)sample, control (C) = (+)LPS/(−)sample, and treated (T) = (+)LPS/(+)sample or standard inhibitors.…”

Natural actives for wound healing: A review

“…Moreover, those actives were well known in folk culture, stimulating use. Nevertheless these are not the only actives being researched, and there are recent papers on Polygonum aviculare L. (Seo et al, ), Hancornia speciose (Geller et al, ), Caesalpinia sappan (Tewtrakul et al, ), Morus alba (Kim et al, ), and Copaiba oil (Wagner et al, ), for example.…”