<i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway
Inflammation is an indispensable part of the human body’s self-defense mechanism against external stimuli. The interactions between Toll-like receptors and microbial components trigger the innate immune system via NF-κB signaling, which regulates the overall cell signaling including inflammatory res...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/5/1146 |
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| author | Jieun Oh Jae Youl Cho Daewon Kim |
| author_facet | Jieun Oh Jae Youl Cho Daewon Kim |
| author_sort | Jieun Oh |
| collection | DOAJ |
| description | Inflammation is an indispensable part of the human body’s self-defense mechanism against external stimuli. The interactions between Toll-like receptors and microbial components trigger the innate immune system via NF-κB signaling, which regulates the overall cell signaling including inflammatory responses and immune modulations. The anti-inflammatory effects of <i>Hyptis obtusiflora</i> C. Presl ex Benth, which has been used as a home remedy for gastrointestinal disorders and skin disease in rural areas of Latin America, have not yet been studied. Here, we investigate the medicinal properties of <i>Hyptis obtusiflora</i> C. Presl ex Benth methanol extract (Ho-ME) for inflammatory response suppression. Nitric oxide secretion in RAW264.7 cells triggered by TLR2, 3, or 4 agonists was reduced by Ho-ME. Reduction of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and interleukin (IL)-1b mRNA expression was observed. Decreased transcriptional activity in TRIF- and MyD88-overexpressing HEK293T cells was detected with a luciferase assay. Additionally, serially downregulated phosphorylation of kinase in the NF-κB pathway by Ho-ME was discovered in lipopolysaccharide-treated RAW264.7 cells. Together with the overexpression of its constructs, AKT was identified as a target protein of Ho-ME, and its binding domains were reaffirmed. Moreover, Ho-ME exerted gastroprotective effects in an acute gastritis mouse model generated by the administration of HCl and EtOH. In conclusion, Ho-ME downregulates inflammation via AKT targeting in the NF-κB pathway, and the combined results support <i>Hyptis obtusiflora</i> as a new candidate anti-inflammatory drug. |
| first_indexed | 2024-03-11T07:13:37Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T07:13:37Z |
| publishDate | 2023-03-01 |
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| series | Plants |
| spelling | doaj.art-697be37f12e84fa9bfa96880f5fa76a72023-11-17T08:24:46ZengMDPI AGPlants2223-77472023-03-01125114610.3390/plants12051146<i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB PathwayJieun Oh0Jae Youl Cho1Daewon Kim2Department of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of KoreaDepartment of Integrative Biotechnology, Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon 16419, Republic of KoreaLaboratory of Bio-Informatics, Department of Multimedia Engineering, Dankook University, Yongin 16890, Republic of KoreaInflammation is an indispensable part of the human body’s self-defense mechanism against external stimuli. The interactions between Toll-like receptors and microbial components trigger the innate immune system via NF-κB signaling, which regulates the overall cell signaling including inflammatory responses and immune modulations. The anti-inflammatory effects of <i>Hyptis obtusiflora</i> C. Presl ex Benth, which has been used as a home remedy for gastrointestinal disorders and skin disease in rural areas of Latin America, have not yet been studied. Here, we investigate the medicinal properties of <i>Hyptis obtusiflora</i> C. Presl ex Benth methanol extract (Ho-ME) for inflammatory response suppression. Nitric oxide secretion in RAW264.7 cells triggered by TLR2, 3, or 4 agonists was reduced by Ho-ME. Reduction of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, and interleukin (IL)-1b mRNA expression was observed. Decreased transcriptional activity in TRIF- and MyD88-overexpressing HEK293T cells was detected with a luciferase assay. Additionally, serially downregulated phosphorylation of kinase in the NF-κB pathway by Ho-ME was discovered in lipopolysaccharide-treated RAW264.7 cells. Together with the overexpression of its constructs, AKT was identified as a target protein of Ho-ME, and its binding domains were reaffirmed. Moreover, Ho-ME exerted gastroprotective effects in an acute gastritis mouse model generated by the administration of HCl and EtOH. In conclusion, Ho-ME downregulates inflammation via AKT targeting in the NF-κB pathway, and the combined results support <i>Hyptis obtusiflora</i> as a new candidate anti-inflammatory drug.https://www.mdpi.com/2223-7747/12/5/1146<i>Hyptis obtusiflora</i> C. Presl ex Benthanti-inflammationTLR4AKT |
| spellingShingle | Jieun Oh Jae Youl Cho Daewon Kim <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway Plants <i>Hyptis obtusiflora</i> C. Presl ex Benth anti-inflammation TLR4 AKT |
| title | <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway |
| title_full | <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway |
| title_fullStr | <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway |
| title_full_unstemmed | <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway |
| title_short | <i>Hyptis obtusiflora</i> C. Presl ex Benth Methanolic Extract Exhibits Anti-Inflammatory and Anti-Gastritis Activities via Suppressing AKT/NF-κB Pathway |
| title_sort | i hyptis obtusiflora i c presl ex benth methanolic extract exhibits anti inflammatory and anti gastritis activities via suppressing akt nf κb pathway |
| topic | <i>Hyptis obtusiflora</i> C. Presl ex Benth anti-inflammation TLR4 AKT |
| url | https://www.mdpi.com/2223-7747/12/5/1146 |
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