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Flower extract of Panax notoginseng attenuates lipopolysaccharide-induced inflammatory response via blocking of NF-kappaB signaling pathway in murine macrophages.
J Ethnopharmacol. 2009 Mar 18; 122(2):313-9.JE

Abstract

AIM OF THE STUDY

The root of Panax notoginseng (PN) is commonly used to treat chronic liver disease with its therapeutic abilities to stop haemorrhage in the circulation, while the PN flower (PN-F) is largely unknown in the biological activities on inflammation and mechanisms of its actions. In this study, the pharmacologic effects of PN-F methanol extract on inflammation were investigated to address potential therapeutic or toxic effects in LPS-stimulated mouse macrophage cells, RAW264.7 cells.

MATERIALS AND METHODS

Production of NO, PGE2 and pro-inflammatory cytokines (TNF-alpha and IL-1beta) in supernatant, the expression of iNOS, COX-2 and cytokines, the phosphorylation of MAPK molecules (ERK1/2, JNK and p38 MAPK), and the activation of NF-kappaB in PN-F extract were assayed in LPS-stimulated RAW264.7 cells.

RESULTS

PN-F extract significantly inhibited the productions of NO, PGE2, TNF-alpha and IL-1beta on the LPS-stimulated RAW264.7 cells. In addition, PN-F extract suppressed the mRNA and protein expressions of iNOS, COX-2, TNF-alpha and IL-1beta in LPS-stimulated RAW264.7 cells. The molecular mechanism of PN-F extract-mediated attenuation in RAW264.7 cells has close a relationship to suppressing the phosphorylation of MAPK molecules such as ERK1/2, JNK and p38 MAPK, and the translocation of NF-kappaB p65 subunit into nuclear.

CONCLUSION

These results indicate that PN-F extract inhibits LPS-induced inflammatory response via the blocking of NF-kappaB signaling pathway in macrophages, and demonstrated that PN-F extract possesses anti-inflammatory properties in vitro.

Authors+Show Affiliations

Department of Herbology, College of Oriental Medicine, Dongguk University, Gyeongju 780-714, South Korea.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19162159

Citation

Jung, Hyo-Won, et al. "Flower Extract of Panax Notoginseng Attenuates Lipopolysaccharide-induced Inflammatory Response Via Blocking of NF-kappaB Signaling Pathway in Murine Macrophages." Journal of Ethnopharmacology, vol. 122, no. 2, 2009, pp. 313-9.
Jung HW, Seo UK, Kim JH, et al. Flower extract of Panax notoginseng attenuates lipopolysaccharide-induced inflammatory response via blocking of NF-kappaB signaling pathway in murine macrophages. J Ethnopharmacol. 2009;122(2):313-9.
Jung, H. W., Seo, U. K., Kim, J. H., Leem, K. H., & Park, Y. K. (2009). Flower extract of Panax notoginseng attenuates lipopolysaccharide-induced inflammatory response via blocking of NF-kappaB signaling pathway in murine macrophages. Journal of Ethnopharmacology, 122(2), 313-9. https://doi.org/10.1016/j.jep.2008.12.024
Jung HW, et al. Flower Extract of Panax Notoginseng Attenuates Lipopolysaccharide-induced Inflammatory Response Via Blocking of NF-kappaB Signaling Pathway in Murine Macrophages. J Ethnopharmacol. 2009 Mar 18;122(2):313-9. PubMed PMID: 19162159.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Flower extract of Panax notoginseng attenuates lipopolysaccharide-induced inflammatory response via blocking of NF-kappaB signaling pathway in murine macrophages. AU - Jung,Hyo-Won, AU - Seo,Un-Kyo, AU - Kim,Jang-Hyun, AU - Leem,Kang-Hyun, AU - Park,Yong-Ki, Y1 - 2008/12/27/ PY - 2008/07/11/received PY - 2008/12/01/revised PY - 2008/12/19/accepted PY - 2009/1/24/entrez PY - 2009/1/24/pubmed PY - 2009/5/20/medline SP - 313 EP - 9 JF - Journal of ethnopharmacology JO - J Ethnopharmacol VL - 122 IS - 2 N2 - AIM OF THE STUDY: The root of Panax notoginseng (PN) is commonly used to treat chronic liver disease with its therapeutic abilities to stop haemorrhage in the circulation, while the PN flower (PN-F) is largely unknown in the biological activities on inflammation and mechanisms of its actions. In this study, the pharmacologic effects of PN-F methanol extract on inflammation were investigated to address potential therapeutic or toxic effects in LPS-stimulated mouse macrophage cells, RAW264.7 cells. MATERIALS AND METHODS: Production of NO, PGE2 and pro-inflammatory cytokines (TNF-alpha and IL-1beta) in supernatant, the expression of iNOS, COX-2 and cytokines, the phosphorylation of MAPK molecules (ERK1/2, JNK and p38 MAPK), and the activation of NF-kappaB in PN-F extract were assayed in LPS-stimulated RAW264.7 cells. RESULTS: PN-F extract significantly inhibited the productions of NO, PGE2, TNF-alpha and IL-1beta on the LPS-stimulated RAW264.7 cells. In addition, PN-F extract suppressed the mRNA and protein expressions of iNOS, COX-2, TNF-alpha and IL-1beta in LPS-stimulated RAW264.7 cells. The molecular mechanism of PN-F extract-mediated attenuation in RAW264.7 cells has close a relationship to suppressing the phosphorylation of MAPK molecules such as ERK1/2, JNK and p38 MAPK, and the translocation of NF-kappaB p65 subunit into nuclear. CONCLUSION: These results indicate that PN-F extract inhibits LPS-induced inflammatory response via the blocking of NF-kappaB signaling pathway in macrophages, and demonstrated that PN-F extract possesses anti-inflammatory properties in vitro. SN - 1872-7573 UR - https://www.unboundmedicine.com/medline/citation/19162159/Flower_extract_of_Panax_notoginseng_attenuates_lipopolysaccharide_induced_inflammatory_response_via_blocking_of_NF_kappaB_signaling_pathway_in_murine_macrophages_ DB - PRIME DP - Unbound Medicine ER -