Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages

Abstract This study investigated the anti-inflammatory effects of pyran derivatives, focusing on compound 19, in LPS-stimulated RAW264.7 macrophages. We screened 19 pyran derivatives for cytotoxicity and nitric oxide (NO) inhibition, and identified compound 19 as the most promising compound owing to...

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Main Authors: Mei Tong He, Sung Jin Kim, Viet Duc Le, Su Ji Min, Heesu Lee, Jae Wook Lee, Myoung-Sook Shin
Format: Article
Language:English
Published: SpringerOpen 2025-08-01
Series:Applied Biological Chemistry
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Online Access:https://doi.org/10.1186/s13765-025-01018-5
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author Mei Tong He
Sung Jin Kim
Viet Duc Le
Su Ji Min
Heesu Lee
Jae Wook Lee
Myoung-Sook Shin
author_facet Mei Tong He
Sung Jin Kim
Viet Duc Le
Su Ji Min
Heesu Lee
Jae Wook Lee
Myoung-Sook Shin
author_sort Mei Tong He
collection DOAJ
description Abstract This study investigated the anti-inflammatory effects of pyran derivatives, focusing on compound 19, in LPS-stimulated RAW264.7 macrophages. We screened 19 pyran derivatives for cytotoxicity and nitric oxide (NO) inhibition, and identified compound 19 as the most promising compound owing to its efficacy. Western blot analysis revealed that compound 19 significantly inhibited the expression of key inflammatory mediators such as inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 in LPS-stimulated macrophages in a dose-dependent manner. Furthermore, compound 19 inhibited the phosphorylation of Akt at 12.5 μM, and suppressed JNK and ERK MAPK phosphorylation at both concentrations (12.5 and 6.25 μM), while p38 phosphorylation was not inhibited. These findings suggest that compound 19 exerts its anti-inflammatory action by modulating multiple signaling pathways involved in inflammatory responses. Our results demonstrate that compound 19 is a promising candidate for the development of novel anti-inflammatory agents.
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id doaj-art-3a1d13b5d9c948ee8103337b8f9fc7dd
institution Kabale University
issn 2468-0842
language English
publishDate 2025-08-01
publisher SpringerOpen
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series Applied Biological Chemistry
spelling doaj-art-3a1d13b5d9c948ee8103337b8f9fc7dd2025-08-20T03:43:10ZengSpringerOpenApplied Biological Chemistry2468-08422025-08-0168111010.1186/s13765-025-01018-5Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophagesMei Tong He0Sung Jin Kim1Viet Duc Le2Su Ji Min3Heesu Lee4Jae Wook Lee5Myoung-Sook Shin6College of Korean Medicine, Gachon UniversityCollege of Korean Medicine, Gachon UniversityNatural Product Research Center, Korea Institute of Science and Technology (KIST)College of Korean Medicine, Gachon UniversityDepartment of Anatomy, College of Dentistry, Gangneung Wonju National UniversityNatural Product Research Center, Korea Institute of Science and Technology (KIST)College of Korean Medicine, Gachon UniversityAbstract This study investigated the anti-inflammatory effects of pyran derivatives, focusing on compound 19, in LPS-stimulated RAW264.7 macrophages. We screened 19 pyran derivatives for cytotoxicity and nitric oxide (NO) inhibition, and identified compound 19 as the most promising compound owing to its efficacy. Western blot analysis revealed that compound 19 significantly inhibited the expression of key inflammatory mediators such as inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 in LPS-stimulated macrophages in a dose-dependent manner. Furthermore, compound 19 inhibited the phosphorylation of Akt at 12.5 μM, and suppressed JNK and ERK MAPK phosphorylation at both concentrations (12.5 and 6.25 μM), while p38 phosphorylation was not inhibited. These findings suggest that compound 19 exerts its anti-inflammatory action by modulating multiple signaling pathways involved in inflammatory responses. Our results demonstrate that compound 19 is a promising candidate for the development of novel anti-inflammatory agents.https://doi.org/10.1186/s13765-025-01018-5InflammationPyran derivativesMAPKs
spellingShingle Mei Tong He
Sung Jin Kim
Viet Duc Le
Su Ji Min
Heesu Lee
Jae Wook Lee
Myoung-Sook Shin
Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
Applied Biological Chemistry
Inflammation
Pyran derivatives
MAPKs
title Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
title_full Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
title_fullStr Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
title_full_unstemmed Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
title_short Novel pyran-based anti-inflammatory agents: design, synthesis, and mechanistic studies in LPS-stimulated macrophages
title_sort novel pyran based anti inflammatory agents design synthesis and mechanistic studies in lps stimulated macrophages
topic Inflammation
Pyran derivatives
MAPKs
url https://doi.org/10.1186/s13765-025-01018-5
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