Biomolecules & Therapeutics最新文献

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Unraveling Stereochemical Structure-Activity Relationships of Sesquiterpene Lactones for Inhibitory Effects on STAT3 Activation. 揭示抑制 STAT3 激活作用的倍半萜内酯的立体化学结构-活性关系
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-09-01 Epub Date: 2024-08-02 DOI: 10.4062/biomolther.2023.210
Seungchan An, Jaemoo Chun, Joohee Lee, Yeong Shik Kim, Minsoo Noh, Hyejin Ko
{"title":"Unraveling Stereochemical Structure-Activity Relationships of Sesquiterpene Lactones for Inhibitory Effects on STAT3 Activation.","authors":"Seungchan An, Jaemoo Chun, Joohee Lee, Yeong Shik Kim, Minsoo Noh, Hyejin Ko","doi":"10.4062/biomolther.2023.210","DOIUrl":"10.4062/biomolther.2023.210","url":null,"abstract":"<p><p>Sesquiterpene lactones, a class of natural compounds abundant in the Asteraceae family, have gained attention owing to their diverse biological activities, and particularly their anti-proliferative effects on human cancer cells. In this study, we systematically investigated the structure-activity relationship of ten sesquiterpene lactones with the aim of elucidating the structural determinants for the STAT3 inhibition governing their anti-proliferative effects. Our findings revealed a significant correlation between the STAT3 inhibitory activity and the anti-proliferative effects of sesquiterpene lactones in MDA-MB-231 breast cancer cell lines. Among the compounds tested, alantolactone and isoalantolactone emerged as the most potent STAT3 inhibitors, highlighting their potential as candidates for anticancer drug development. Through protein-ligand docking studies, we revealed the structural basis of STAT3 inhibition by sesquiterpene lactones, emphasizing the critical role of hydrogen-bonding interactions with key residues, including Arg609, Ser611, Glu612, and Ser613, in the SH2 domain of STAT3. Furthermore, our conformational analysis revealed the decisive role of the torsion angle within the geometry-optimized structures of sesquiterpene lactones in their STAT3 inhibitory activity (<i>R</i>=0.80, <i>p</i><0.01). These findings not only provide preclinical evidence for sesquiterpene lactones as promising phytomedicines against diseases associated with abnormal STAT3 activation, but also highlight the importance of stereochemical aspects in their activity.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"627-634"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392665/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Carnosine and Retinol Synergistically Inhibit UVB-Induced PGE2 Synthesis in Human Keratinocytes through the Up-Regulation of Hyaluronan Synthase 2. 卡诺辛和视黄醇通过上调透明质酸合成酶 2 协同抑制 UVB 诱导的人角质形成细胞中 PGE2 的合成
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-09-01 Epub Date: 2024-08-02 DOI: 10.4062/biomolther.2023.226
In Guk Park, Sun Hee Jin, Seungchan An, Min Won Ki, Won Seok Park, Hyoung-June Kim, Yongjoo Na, Minsoo Noh
{"title":"Carnosine and Retinol Synergistically Inhibit UVB-Induced PGE<sub>2</sub> Synthesis in Human Keratinocytes through the Up-Regulation of Hyaluronan Synthase 2.","authors":"In Guk Park, Sun Hee Jin, Seungchan An, Min Won Ki, Won Seok Park, Hyoung-June Kim, Yongjoo Na, Minsoo Noh","doi":"10.4062/biomolther.2023.226","DOIUrl":"10.4062/biomolther.2023.226","url":null,"abstract":"<p><p>Skin aging results from complex interactions of intrinsic and extrinsic factors, leading to structural and biochemical changes such as wrinkles and dryness. Ultraviolet (UV) irradiation leads to the degradation of hyaluronic acid (HA) in the skin, and the with fragmented HA contributes to inflammation. This study revealed that the synergistic combination of carnosine and retinol (ROL) increases HA production in normal human epidermal keratinocytes (NHEKs) by upregulating hyaluronan synthase 2 (HAS2) gene transcription. Simultaneously, the combined treatment of carnosine and ROL significantly attenuates UVB-induced prostaglandin E<sub>2</sub> (PGE<sub>2</sub>) synthesis in NHEKs. A significant correlation exists between the increase of HA synthesis and the inhibition of PGE<sub>2</sub> production. This study suggested that combined treatment of carnosine and ROL can improve skin aging phenotypes associated with UVB irradiation.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"635-639"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392658/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Loganin Ameliorates Acute Kidney Injury and Restores Tofacitinib Metabolism in Rats: Implications for Renal Protection and Drug Interaction. 洛加尼改善大鼠急性肾损伤并恢复托法替尼代谢:对肾脏保护和药物相互作用的影响。
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-09-01 Epub Date: 2024-08-02 DOI: 10.4062/biomolther.2024.008
Hyeon Gyeom Choi, So Yeon Park, Sung Hun Bae, Sun-Young Chang, So Hee Kim
{"title":"Loganin Ameliorates Acute Kidney Injury and Restores Tofacitinib Metabolism in Rats: Implications for Renal Protection and Drug Interaction.","authors":"Hyeon Gyeom Choi, So Yeon Park, Sung Hun Bae, Sun-Young Chang, So Hee Kim","doi":"10.4062/biomolther.2024.008","DOIUrl":"10.4062/biomolther.2024.008","url":null,"abstract":"<p><p>Tofacitinib, a Janus kinase (JAK) inhibitor used to treat rheumatoid arthritis, is metabolized through hepatic cytochrome P450 (CYP), specifically CYP3A1/2 and CYP2C11. Prolonged administration of rheumatoid arthritis medications is generally associated with an increased risk of renal toxicity. Loganin (LGN), an iridoid glycoside, has hepatorenal regenerative properties. This study investigates the potential of LGN to mitigate acute kidney injury (AKI) and its effects on the pharmacokinetics of tofacitinib in rats with cisplatin-induced AKI. Both intravenous and oral administration of tofacitinib to AKI rats significantly increased the area under the plasma concentration-time curve from time 0 to infinity (AUC) compared with control (CON) rats, an increase attributed to the decelerated non-renal clearance (CL<sub>NR</sub>) and renal clearance (CL<sub>R</sub>) of tofacitinib. Administration of LGN to AKI rats, however, protected kidneys from severe impairment, restoring the pharmacokinetic parameters (AUC, CL<sub>NR</sub>, and CL<sub>R</sub>) of tofacitinib to those observed in untreated CON rats, with partial recovery of kidney function, as evidenced by an increase in creatinine clearance (CL<sub>CR</sub>). Possible interactions between drugs and natural components should be considered, especially when co-administering both a drug and a natural extract containing LGN or iridoid glycosides to patients with kidney injury.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"601-610"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11392661/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of SARS-CoV-2 Mutations after Nirmatrelvir Treatment in a Lung Cancer Xenograft Mouse Model. 在肺癌异种移植小鼠模型中进行 Nirmatrelvir 治疗后的 SARS-CoV-2 变异分析
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-05 DOI: 10.4062/biomolther.2023.195
Bo Min Kang, Dongbum Kim, Jinsoo Kim, Kyeongbin Baek, Sangkyu Park, Ha-Eun Shin, Myeong-Heon Lee, Minyoung Kim, Suyeon Kim, Younghee Lee, Hyung-Joo Kwon
{"title":"Analysis of SARS-CoV-2 Mutations after Nirmatrelvir Treatment in a Lung Cancer Xenograft Mouse Model.","authors":"Bo Min Kang, Dongbum Kim, Jinsoo Kim, Kyeongbin Baek, Sangkyu Park, Ha-Eun Shin, Myeong-Heon Lee, Minyoung Kim, Suyeon Kim, Younghee Lee, Hyung-Joo Kwon","doi":"10.4062/biomolther.2023.195","DOIUrl":"10.4062/biomolther.2023.195","url":null,"abstract":"<p><p>Paxlovid is the first approved oral treatment for coronavirus disease 2019 and includes nirmatrelvir, a protease inhibitor targeting the main protease (M<sup>pro</sup>) of SARS-CoV-2, as one of the key components. While some specific mutations emerged in M<sup>pro</sup> were revealed to significantly reduce viral susceptibility to nirmatrelvir <i>in vitro</i>, there is no report regarding resistance to nirmatrelvir in patients and animal models for SARS-CoV-2 infection yet. We recently developed xenograft tumors derived from Calu-3 cells in immunodeficient mice and demonstrated extended replication of SARS-CoV-2 in the tumors. In this study, we investigated the effect of nirmatrelvir administration on SARS-CoV-2 replication. Treatment with nirmatrelvir after virus infection significantly reduced the replication of the parental SARS-CoV-2 and SARS-CoV-2 Omicron at 5 days post-infection (dpi). However, the virus titers were completely recovered at the time points of 15 and 30 dpi. The virus genomes in the tumors at 30 dpi were analyzed to investigate whether nirmatrelvir-resistant mutant viruses had emerged during the extended replication of SARS-CoV-2. Various mutations in several genes including ORF1ab, ORF3a, ORF7a, ORF7b, ORF8, and N occurred in the SARS-CoV-2 genome; however, no mutations were induced in the M<sup>pro</sup> sequence by a single round of nirmatrelvir treatment, and none were observed even after two rounds of treatment. The parental SARS-CoV-2 and its sublineage isolates showed similar IC<sub>50</sub> values of nirmatrelvir in Vero E6 cells. Therefore, it is probable that inducing viral resistance to nirmatrelvir <i>in vivo</i> is challenging differently from <i>in vitro</i> passage.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"481-491"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214963/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Elafibranor PPARα/δ Dual Agonist Ameliorates Ovalbumin-Induced Allergic Asthma. Elafibranor PPARα/δ 双激动剂可改善卵清蛋白诱发的过敏性哮喘
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-05 DOI: 10.4062/biomolther.2023.194
Ye-Eul Lee, Dong-Soon Im
{"title":"Elafibranor PPARα/δ Dual Agonist Ameliorates Ovalbumin-Induced Allergic Asthma.","authors":"Ye-Eul Lee, Dong-Soon Im","doi":"10.4062/biomolther.2023.194","DOIUrl":"10.4062/biomolther.2023.194","url":null,"abstract":"<p><p>Asthma is characterized by chronic inflammation and respiratory tract remodeling. Peroxisome proliferator-activated receptors (PPARs) play important roles in the pathogenesis and regulation of chronic inflammatory processes in asthma. The role of PPARγ has been studied using synthetic PPARγ agonists in patients with asthma. However, involvement of PPARα/δ has not been studied in asthma. In the present study, we investigated if elafibranor, a PPARα/δ dual agonist, can modulate ovalbumin (OVA)-induced allergic asthma, which is a potential drug candidate for non-alcoholic fatty liver in obese patients. Elafibranor suppresses antigen-induced degranulation in RBL-2H3 mast cells without inducing cytotoxicity <i>in vitro</i>. In mice with OVA-induced allergic asthma, the administration of elafibranor suppressed OVA-induced airway hyper-responsiveness at a dose of 10 mg/kg. Elafibranor also suppressed the OVA-induced increase in immune cells and pro-inflammatory cytokine production in the bronchoalveolar lavage fluid (BALF). Histological studies suggested that elafibranor suppressed OVA-induced lung inflammation and mucin hyper-production in the bronchial airways. In addition, elafibranor suppressed OVA-induced increases in serum immunoglobulin E and IL-13 levels in BALF. Conversely, the present study suggests that elafibranor has the potential for use in patients with allergic asthma.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"460-466"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214965/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Engineered T Cell Receptor for Cancer Immunotherapy. 用于癌症免疫疗法的工程 T 细胞受体。
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-07 DOI: 10.4062/biomolther.2023.197
So Won Lee, Hyang-Mi Lee
{"title":"Engineered T Cell Receptor for Cancer Immunotherapy.","authors":"So Won Lee, Hyang-Mi Lee","doi":"10.4062/biomolther.2023.197","DOIUrl":"10.4062/biomolther.2023.197","url":null,"abstract":"<p><p>Among the therapeutic strategies in cancer immunotherapy-such as immune-modulating antibodies, cancer vaccines, or adoptive T cell transfer-T cells have been an attractive target due to their cytotoxicity toward tumor cells and the tumor antigen-specific binding of their receptors. Leveraging the unique properties of T cells, chimeric antigen receptor-T cells and T cell receptor (TCR)-T cells were developed through genetic modification of their receptors, enhancing the specificity and effectiveness of T cell therapy. Adoptive cell transfer of chimeric antigen receptor-T cells has been successful for the treatment of hematological malignancies. To expand T cell therapy to solid tumors, T cells are modified to express defined TCR targeting tumor associated antigen, which is called TCR-T therapy. This review discusses anti-tumor T cell therapies, with a focus on engineered TCR-T cell therapy. We outline the characteristics of TCR-T cell therapy and its clinical application to non-hematological malignancies.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"424-431"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214961/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141282898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selonsertib, an ASK1 Inhibitor, Ameliorates Ovalbumin-Induced Allergic Asthma during Challenge and Sensitization Periods. ASK1抑制剂Selonsertib能改善卵清蛋白诱发的过敏性哮喘的挑战期和致敏期症状。
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-07 DOI: 10.4062/biomolther.2023.203
So-Young Han, Dong-Soon Im
{"title":"Selonsertib, an ASK1 Inhibitor, Ameliorates Ovalbumin-Induced Allergic Asthma during Challenge and Sensitization Periods.","authors":"So-Young Han, Dong-Soon Im","doi":"10.4062/biomolther.2023.203","DOIUrl":"10.4062/biomolther.2023.203","url":null,"abstract":"<p><p>Apoptosis signal-regulating kinase 1 (ASK1) is an upstream signaling molecule in oxidative stress-induced responses. Because oxidative stress is involved in asthma pathogenesis, ASK1 gene deficiency was investigated in animal models of allergic asthma. However, there is no study to investigate whether ASK1 inhibitors could be applied for asthma to date. Selonsertib, a potent and selective ASK1 inhibitor, was applied to BALB/c mice of an ovalbumin (OVA)-induced allergic asthma model. Selonsertib suppressed antigen-induced degranulation of RBL-2H3 mast cells in a concentration-dependent manner. The administration of selonsertib both before OVA sensitization and OVA challenge significantly reduced airway hyperresponsiveness, and suppressed eosinophil numbers and inflammatory cytokine levels in the bronchoalveolar lavage fluid. Histopathologic examination elucidated less inflammatory responses and reduced mucin-producing cells around the peribronchial regions of the lungs. Selonsertib also suppressed the IgE levels in serum and the protein levels of IL-13 in the bronchoalveolar lavage fluid. These results suggest that selonsertib may ameliorate allergic asthma by suppressing immune responses and be applicable to allergic asthma.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"451-459"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214966/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141282899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gut Microbiota Metabolite Messengers in Brain Function and Pathology at a View of Cell Type-Based Receptor and Enzyme Reaction. 从基于细胞类型的受体和酶反应看肠道微生物群代谢物信使在大脑功能和病理学中的作用
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-20 DOI: 10.4062/biomolther.2024.009
Bada Lee, Soo Min Lee, Jae Won Song, Jin Woo Choi
{"title":"Gut Microbiota Metabolite Messengers in Brain Function and Pathology at a View of Cell Type-Based Receptor and Enzyme Reaction.","authors":"Bada Lee, Soo Min Lee, Jae Won Song, Jin Woo Choi","doi":"10.4062/biomolther.2024.009","DOIUrl":"10.4062/biomolther.2024.009","url":null,"abstract":"<p><p>The human gastrointestinal (GI) tract houses a diverse microbial community, known as the gut microbiome comprising bacteria, viruses, fungi, and protozoa. The gut microbiome plays a crucial role in maintaining the body's equilibrium and has recently been discovered to influence the functioning of the central nervous system (CNS). The communication between the nervous system and the GI tract occurs through a two-way network called the gut-brain axis. The nervous system and the GI tract can modulate each other through activated neuronal cells, the immune system, and metabolites produced by the gut microbiome. Extensive research both in preclinical and clinical realms, has highlighted the complex relationship between the gut and diseases associated with the CNS, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. This review aims to delineate receptor and target enzymes linked with gut microbiota metabolites and explore their specific roles within the brain, particularly their impact on CNS-related diseases.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"403-423"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214962/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141426261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inhibitory Action of 1,3,5-Trihydroxybenzene on UVB-Induced NADPH Oxidase 4 through AMPK and JNK Signaling Pathways. 1,3,5-三羟基苯通过 AMPK 和 JNK 信号通路对紫外线诱导的 NADPH 氧化酶 4 起抑制作用
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-25 DOI: 10.4062/biomolther.2024.054
Chaemoon Lim, Mei Jing Piao, Kyoung Ah Kang, Pincha Devage Sameera Madushan Fernando, Herath Mudiyanselage Udari Lakmini Herath, Dae Whan Kim, Joo Mi Yi, Yung Hyun Choi, Jin Won Hyun
{"title":"Inhibitory Action of 1,3,5-Trihydroxybenzene on UVB-Induced NADPH Oxidase 4 through AMPK and JNK Signaling Pathways.","authors":"Chaemoon Lim, Mei Jing Piao, Kyoung Ah Kang, Pincha Devage Sameera Madushan Fernando, Herath Mudiyanselage Udari Lakmini Herath, Dae Whan Kim, Joo Mi Yi, Yung Hyun Choi, Jin Won Hyun","doi":"10.4062/biomolther.2024.054","DOIUrl":"10.4062/biomolther.2024.054","url":null,"abstract":"<p><p>Specific sensitivity of the skin to ultraviolet B (UVB) rays is one of the mechanisms responsible for widespread skin damage. This study tested whether 1,3,5-trihydroxybenzene (THB), a compound abundant in marine products, might inhibit UVB radiation-induced NADPH oxidase 4 (NOX4) in both human HaCaT keratinocytes and mouse dorsal skin and explore its cytoprotective mechanism. The mechanism of action was determined using western blotting, immunocytochemistry, NADP<sup>+</sup>/NADPH assay, reactive oxygen species (ROS) detection, and cell viability assay. THB attenuated UVB-induced NOX4 expression both <i>in vitro</i> and <i>in vivo</i>, and suppressed UVB-induced ROS generation via NADP<sup>+</sup> production, resulting in increased cell viability with decreased apoptosis. THB also reduced the expression of UVB-induced phosphorylated AMP-activated protein kinase (AMPK) and phosphorylated c-Jun N-terminal kinase (JNK). THB suppressed UVB-induced NOX4 expression and ROS generation by inhibiting AMPK and JNK signaling pathways, thereby inhibiting cellular damage. These results showed that THB could be developed as a UV protectant.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":"32 4","pages":"499-507"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214967/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141445358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anti-Inflammatory Activities of (+)-Afzelechin against Lipopolysaccharide-Induced Inflammation. (+)-Afzelechin 对脂多糖诱发炎症的抗炎活性
IF 3 3区 医学
Biomolecules & Therapeutics Pub Date : 2024-07-01 Epub Date: 2024-06-07 DOI: 10.4062/biomolther.2023.204
In-Chul Lee, Jong-Sup Bae
{"title":"Anti-Inflammatory Activities of (+)-Afzelechin against Lipopolysaccharide-Induced Inflammation.","authors":"In-Chul Lee, Jong-Sup Bae","doi":"10.4062/biomolther.2023.204","DOIUrl":"10.4062/biomolther.2023.204","url":null,"abstract":"<p><p>In this study, we investigated the potential protective effects of (+)-afzelechin (AZC), a natural compound that is derived from Bergenia ligulata, on lipopolysaccharide (LPS)-induced inflammatory responses. AZC is known to have antioxidant, anticancer, antimicrobial, and cardiovascular protective properties. However, knowledge regarding the therapeutic potential of AZC against LPS-induced inflammatory responses is limited. Thus, we investigated the protective attributes of AZC against inflammatory damage caused by LPS exposure. We examined the effects of AZC on heme oxygenase (HO)-1, cyclooxygenase (COX)-2, and inducible nitric oxide synthase (iNOS) in LPS-activated human umbilical vein endothelial cells (HUVECs). In addition, the effects of AZC on the expression of iNOS, tumor necrosis factor (TNF)-α, and interleukin (IL)-1β were analyzed in the lung tissues of LPS-injected mice. Data revealed that AZC promoted the production of HO-1, inhibited the interaction between luciferase and nuclear factor (NF)-κB, and reduced the levels of COX-2/PGE2 and iNOS/NO, thereby leading to a decrease in the signal transducer and activator of transcription (STAT)-1 phosphorylation. Moreover, AZC facilitated the nuclear translocation of Nrf2, increased the binding activity between Nrf2 and the antioxidant response elements (AREs), and lowered the expression of IL-1β in the LPS-treated HUVECs. In the animal model, AZC significantly reduced the expression of iNOS in the lung tissue structure and the TNF-α level in the bronchoalveolar lavage fluid. These findings demonstrate that AZC possesses anti-inflammatory properties that regulate iNOS through the inhibition of both NF-κB expression and p-STAT-1. Consequently, AZC has potential as a future candidate for the development of new clinical substances for the treatment of pathological inflammation.</p>","PeriodicalId":8949,"journal":{"name":"Biomolecules & Therapeutics","volume":" ","pages":"467-473"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11214960/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141282897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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