Abstract
Abstract: Ethnopharmacological significance: Phaseolus angularis Wight (adzuki bean) is an ethnopharmacologically well-known folk medicine that is prescribed for infection, edema, and inflammation of the joints, appendix, kidney and bladder in Korea, China and Japan. Aim of study: The anti-inflammatory effect of this plant and its associated molecular mechanisms will be investigated. Materials and methods: The immunomodulatory activity of Phaseolus angularis ethanol extract (Pa-EE) in toll like receptor (TLR)-activated macrophages induced by ligands such as lipopolysaccharide (LPS), Poly (I:C), and pam3CSK was investigated by assessing nitric oxide (NO) and prostaglandin (PG)E2 levels. To identify which transcription factors such as nuclear factor (NF)-κB and their signaling enzymes can be targeted to Pa-EE, biochemical approaches including reporter gene assays, immunoprecipitation, kinase assays, and immunoblot analyses were also employed. Finally, whether Pa-EE was orally available, ethanol (EtOH)/hydrochloric acid (HCl)-induced gastritis model in mice was used. Results: Pa-EE dose-dependently suppressed the release of PGE2 and NO in LPS-, Poly(I:C)-, and pam3CSK-activated macrophages. Pa-EE strongly down-regulated LPS-induced mRNA expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2. Interestingly, Pa-EE markedly inhibited NF-κB, activator protein (AP)-1, and cAMP response element binding protein (CREB) activation; further, according to direct kinase assays and immunoblot analyses, Pa-EE blocked the activation of the upstream signaling molecules spleen tyrosine kinase (Syk), p38, and transforming growth factor β–activated kinase 1 (TAK1). Finally, orally administered Pa-EE clearly ameliorated EtOH/HCl-induced gastritis in mice. Conclusion: Our results suggest that Pa-EE can be further developed as a promising anti-inflammatory remedy because it targets multiple inflammatory signaling enzymes and transcription factors. [Copyright &y& Elsevier]
 
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บทคัดย่อAbstract: Ethnopharmacological significance: Phaseolus angularis Wight (adzuki bean) is an ethnopharmacologically well-known folk medicine that is prescribed for infection, edema, and inflammation of the joints, appendix, kidney and bladder in Korea, China and Japan. Aim of study: The anti-inflammatory effect of this plant and its associated molecular mechanisms will be investigated. Materials and methods: The immunomodulatory activity of Phaseolus angularis ethanol extract (Pa-EE) in toll like receptor (TLR)-activated macrophages induced by ligands such as lipopolysaccharide (LPS), Poly (I:C), and pam3CSK was investigated by assessing nitric oxide (NO) and prostaglandin (PG)E2 levels. To identify which transcription factors such as nuclear factor (NF)-κB and their signaling enzymes can be targeted to Pa-EE, biochemical approaches including reporter gene assays, immunoprecipitation, kinase assays, and immunoblot analyses were also employed. Finally, whether Pa-EE was orally available, ethanol (EtOH)/hydrochloric acid (HCl)-induced gastritis model in mice was used. Results: Pa-EE dose-dependently suppressed the release of PGE2 and NO in LPS-, Poly(I:C)-, and pam3CSK-activated macrophages. Pa-EE strongly down-regulated LPS-induced mRNA expression of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2. Interestingly, Pa-EE markedly inhibited NF-κB, activator protein (AP)-1, and cAMP response element binding protein (CREB) activation; further, according to direct kinase assays and immunoblot analyses, Pa-EE blocked the activation of the upstream signaling molecules spleen tyrosine kinase (Syk), p38, and transforming growth factor β–activated kinase 1 (TAK1). Finally, orally administered Pa-EE clearly ameliorated EtOH/HCl-induced gastritis in mice. Conclusion: Our results suggest that Pa-EE can be further developed as a promising anti-inflammatory remedy because it targets multiple inflammatory signaling enzymes and transcription factors. [Copyright &y& Elsevier] ลิขสิทธิ์ของสมุด Ethnopharmacology เป็นทรัพย์สินของ Elsevier วิทยาศาสตร์ และเนื้อหาอาจไม่สามารถคัดลอก หรือส่งอีเมลไปยังไซต์หลาย หรือ listserv โดยไม่รับอนุญาตเป็นลายลักษณ์อักษรเป็นผู้ถือลิขสิทธิ์การลงรายการบัญชี อย่างไรก็ตาม ผู้ใช้อาจพิมพ์ ดาวน์โหลด หรือบทความสำหรับแต่ละอีเมล์ บทคัดย่อนี้อาจจะสรุป ได้มีการรับประกันเกี่ยวกับความถูกต้องของสำเนา ผู้ใช้ควรอ้างอิงถึงฉบับเผยแพร่วัสดุสำหรับบทคัดย่อเต็มรูปแบบ (ลิขสิทธิ์ใช้กับบทคัดย่อจากทั้งหมด)
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