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Lee J, Hwang GW, Lee BS, Park NJ, Kim SN, Lim D, Kim DW, Lee YS, Park HK, Kim S, Kim JW, Yi GR, Kim KH, Pang C. Artificial Octopus-Limb-Like Adhesive Patches for Cupping-Driven Transdermal Delivery with Nanoscale Control of Stratum Corneum. ACS Nano 2024. [PMID: 38254288 DOI: 10.1021/acsnano.3c09304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Drug delivery through complex skin is currently being studied using various innovative structural and material strategies due to the low delivery efficiency of the multilayered stratum corneum as a barrier function. Existing microneedle-based or electrical stimulation methods have made considerable advances, but they still have technical limitations to reduce skin discomfort and increase user convenience. This work introduces the design, operation mechanism, and performance of noninvasive transdermal patch with dual-layered suction chamber cluster (d-SCC) mimicking octopus-limb capable of wet adhesion with enhanced adhesion hysteresis and physical stimulation. The d-SCC facilitates cupping-driven drug delivery through the skin with only finger pressure. Our device enables nanoscale deformation control of stratum corneum of the engaged skin, allowing for efficient transport of diverse drugs through the stratum corneum without causing skin discomfort. Compared without the cupping effect of d-SCC, applying negative pressure to the porcine, human cadaver, and artificial skin for 30 min significantly improved the penetration depth of liquid-formulated subnanoscale medicines up to 44, 56, and 139%. After removing the cups, an additional acceleration in delivery to the skin was observed. The feasibility of d-SCC was demonstrated in an atopic dermatitis-induced model with thickened stratum corneum, contributing to the normalization of immune response.
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Affiliation(s)
- Jihyun Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Gui Won Hwang
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Bum Soo Lee
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, 679, Saimdangro, Gangneung-si, Gangwon-do 25451, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, 679, Saimdangro, Gangneung-si, Gangwon-do 25451, Republic of Korea
| | - Dohyun Lim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Da Wan Kim
- Department of Electronic Engineering, Korea National University of Transportation, Chungju-si, Chungbuk 27469, Republic of Korea
| | - Yeon Soo Lee
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Hyoung-Ki Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Seulgi Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Jin Woong Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
| | - Gi-Ra Yi
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Nam-Gu, Pohang, 37673, Republic of Korea
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Changhyun Pang
- School of Chemical Engineering, Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
- Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University (SKKU), 2066 Seobu-ro, Jangan-gu, Suwon 16419, Republic of Korea
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Cho Y, Hwang JW, Park NJ, Moon J, Ali KH, Seo YH, Kim IS, Kim SN, Kim YK. SPC-180002, a SIRT1/3 dual inhibitor, impairs mitochondrial function and redox homeostasis and represents an antitumor activity. Free Radic Biol Med 2023; 208:73-87. [PMID: 37536458 DOI: 10.1016/j.freeradbiomed.2023.07.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/12/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
Since sirtuins (SIRTs) are closely associated with reactive oxygen species (ROS) and antioxidant system, the development of their selective inhibitors is drawing attention for understanding of cellular redox homeostasis. Here, we describe the pharmacological properties of SPC-180002, which incorporates a methyl methacrylate group as a key pharmacophore, along with its comprehensive molecular mechanism as a novel dual inhibitor of SIRT1/3. The dual inhibition of SIRT1/3 by SPC-180002 disturbs redox homeostasis via ROS generation, which leads to an increase in both p21 protein stability and mitochondrial dysfunction. Increased p21 interacts with and inhibits CDK, thereby interfering with cell cycle progression. SPC-180002 leads to mitochondrial dysfunction by inhibiting mitophagy, which is accompanied by a reduction in oxygen consumption rate. Consequently, SPC-180002 strongly suppresses the proliferation of cancer cells and exerts anticancer effect in vivo. Taken together, the novel SIRT1/3 dual inhibitor, SPC-180002, impairs mitochondrial function and redox homeostasis, thereby strongly inhibiting cell cycle progression and cancer cell growth.
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Affiliation(s)
- Yena Cho
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - Jee Won Hwang
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea
| | - No-June Park
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology KIST School, Seoul, 02792, Republic of Korea
| | - Junghyea Moon
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Khan Hashim Ali
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea
| | - Young Ho Seo
- College of Pharmacy, Keimyung University, Daegu, 42601, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Su-Nam Kim
- Natural Product Research Institute, Korea Institute of Science and Technology, Gangneung, 25451, Republic of Korea; Division of Bio-Medical Science and Technology, University of Science and Technology KIST School, Seoul, 02792, Republic of Korea.
| | - Yong Kee Kim
- Muscle Physiome Research Center and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Sookmyung Women's University, Seoul, 04310, Republic of Korea.
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Kim TY, Park NJ, Jo BG, Lee BS, Keem MJ, Kwon TH, Kim KH, Kim SN, Yang MH. Anti-Wrinkling Effect of 3,4,5-tri- O-caffeoylquinic Acid from the Roots of Nymphoides peltata through MAPK/AP-1, NF-κB, and Nrf2 Signaling in UVB-Irradiated HaCaT Cells. Antioxidants (Basel) 2023; 12:1899. [PMID: 37891978 PMCID: PMC10604296 DOI: 10.3390/antiox12101899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
Nymphoides peltata has been widely used pharmacologically in traditional Chinese medicine to treat heat strangury and polyuria. The aim of this study was to isolate the bioactive components from N. peltata and evaluate their potential use as antioxidant and anti-wrinkle agents. Phytochemical investigation of the methanolic extract of N. peltata roots led to the isolation of 15 compounds (1-15), which were structurally determined as α-spinasterol (1), 3-O-β-D-glucopyranosyl-oleanolic acid 28-O-β-D-glucuronopyranoside (2), 4-hydroxybenzoic acid (3), protocatechuic acid (4), vanillic acid (5), p-coumaric acid (6), caffeic acid (7), ferulic acid (8), neochlorogenic acid (neo-CQA) (9), chlorogenic acid (CQA) (10), cryptochlorogenic acid (crypto-CQA) (11), isochlorogenic acid B (3,4-DCQA) (12), isochlorogenic acid A (3,5-DCQA) (13), isochlorogenic acid C (4,5-DCQA) (14), and 3,4,5-tri-O-caffeoylquinic acid (TCQA) (15). Of these 15 compounds, compound 2 was a new oleanane saponin, the chemical structure of which was characterized by 1D and 2D nuclear magnetic resonance (NMR) spectroscopic data and high-resolution electrospray ionization mass spectrometry (HRESIMS), as well as chemical reaction. Biological evaluation of the isolated compounds revealed that 3,4,5-tri-O-caffeoylquinic acid (TCQA) significantly improved Nrf2 levels in an Nrf2-ARE reporter HaCaT cell screening assay. TCQA was found to potently inhibit the Nrf2/HO-1 pathway and to possess strong anti-wrinkle activity by modulating the MAPK/NF-κB/AP-1 signaling pathway and thus inhibiting MMP-1 synthesis in HaCaT cells exposed to UVB. Our results suggest that TCQA isolated from N. peltata might be useful for developing effective antioxidant and anti-wrinkle agents.
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Affiliation(s)
- Tae-Young Kim
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (T.-Y.K.); (B.-G.J.); (M.-J.K.); (T.-H.K.)
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Beom-Geun Jo
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (T.-Y.K.); (B.-G.J.); (M.-J.K.); (T.-H.K.)
| | - Bum Soo Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Min-Ji Keem
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (T.-Y.K.); (B.-G.J.); (M.-J.K.); (T.-H.K.)
| | - Taek-Hwan Kwon
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (T.-Y.K.); (B.-G.J.); (M.-J.K.); (T.-H.K.)
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea;
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Min Hye Yang
- Department of Pharmacy, College of Pharmacy and Research Institute for Drug Development, Pusan National University, Busan 46241, Republic of Korea; (T.-Y.K.); (B.-G.J.); (M.-J.K.); (T.-H.K.)
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Park NJ, Hiniker SM, Guo HH, Advani RH, Hoppe RT, Binkley MS. Investigating PET Responses to Treatment in Nodular Lymphocyte-Predominant Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2023; 117:e480. [PMID: 37785523 DOI: 10.1016/j.ijrobp.2023.06.1699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) There is no standard treatment for nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL). Although response by positron emission tomography (PET) for classic Hodgkin lymphoma (cHL) has allowed for response-adapted treatment, similar approaches for NLPHL have not been developed. This is in part due to the lack of data for PET response to treatment. Therefore, we sought to investigate PET responses to management for NLPHL. MATERIALS/METHODS We retrospectively identified 47 patients who were diagnosed with or treated for NLPHL between 2001-2018 at a single institution and underwent a staging PET. We recorded clinical data and PET metrics for patients who received various forms of management, including chemotherapy (CT), radiation therapy (RT), combined modality therapy (CMT = CT+RT, with rituximab in a subset), rituximab monotherapy, and observation after excision. Metabolic response was scored according to the Deauville 5-point scale criteria, with complete metabolic response defined as a score 1-3. RESULTS We identified 47 patients with median age of 26 (IQR = 17-50). They predominantly were male (74.5%) and had early stage (23.4% I, 36.2% II) versus advanced stage (29.8% III, 10.5% IV) NLPHL. The majority of patients had their immunoarchitectural pattern scored (n = 36, 76.6%), with typical pattern (A/B) being the most frequent type (58.3%). The median follow-up was 5.7 years (IQR = 2.3-9.3). Overall survival was 100% at 5 years and 92.3% at 10 years. Primary management included CMT (n = 10, 21.3%; with rituximab in a subset n = 1, 10.0%), CT alone (n = 22, 46.8%; with rituximab in a subset n = 5, 22.7%), RT alone (n = 8, 17.0%), rituximab alone (n = 3, 6.4%), and observation after excision (n = 4, 8.5%). On baseline PET, median SUVmax was 10.7 (range = 1.7-35.4). Of the 10 patients who received CMT, the complete metabolic response rates were 42.9% at interim-chemotherapy PET and 75% at post-chemotherapy PET, which improved to 100% after consolidative radiotherapy. There was no difference in complete metabolic response rate to chemotherapy for typical versus variant pattern (P = 0.60). Of the 22 patients who received CT alone, 66.7% had a complete metabolic response at the interim PET and 72.7% at the end of chemotherapy. For RT, rituximab alone, and observation, the complete metabolic response rates at median 3 months (range 1-5 months) after treatment were 87.5%, 66.7%, 75.0%, respectively. CONCLUSION Based on our cohort, we found that patients with NLPHL had a lower complete metabolic response to CT (∼75%) compared to cHL (∼85-90%) and PET-response was improved following RT for those receiving CMT. There was no significant difference in PET-response for those with variant versus typical immunoarchitectural patterns. Our findings will allow for the development of PET response-adapted therapy for NLPHL.
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Affiliation(s)
- N J Park
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - S M Hiniker
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - H H Guo
- Department of Nuclear Medicine, Stanford University School of Medicine, Stanford, CA
| | - R H Advani
- Department of Medicine, Division of Oncology, Stanford University School of Medicine, Stanford, CA
| | - R T Hoppe
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - M S Binkley
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
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No HJ, Park NJ, Guo FB, Kastelowitz N, Snyder JM, Rhee JW, Clark DE, Chin AL, Vitzthum L, Horst KC, Moding EJ, Loo BW, Diehn M, Binkley MS. Investigating Dosimetry and Imaging Biomarkers for Prediction of Major Adverse Cardiac Events Following Locally Advanced Non-Small Cell Lung Cancer Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:S170. [PMID: 37784425 DOI: 10.1016/j.ijrobp.2023.06.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Thoracic radiotherapy (RT) may confer major adverse cardiac events (MACE) following treatment. Mean heart dose positively associates with MACE and recent studies show cardiac substructure dosimetry improves MACE prediction. Use of imaging biomarkers with cardiac substructure dose has not been studied for prediction of MACE. We sought to develop an integrated model for cardiac substructure dose and baseline coronary artery calcium (CAC) scoring and establish its relationship to MACE. MATERIALS/METHODS A retrospective cohort analysis was performed of consecutive patients with locally advanced non-small cell lung cancer (NSCLC) treated with definitive RT from 2006-2018 at a single institution. Demographics, medical history, cardiac events, and treatments received were recorded. Cardiac substructures were contoured, including the left descending artery (LAD), left main coronary artery (LMCA), left circumflex (LCX), right coronary artery (RCA), TotalLeft (LAD+LMCA+LCX), and TotalCor (TotalLeft+RCA). Doses were measured in 2 Gy equivalent dose. CAC was scored by visual assessment and compared to established automated Agatston scoring. Primary endpoint was MACE incidence. Receiver operating characteristic (ROC) curves assessed dose and CAC metric model performance. Threshold modeling was conducted using the log rank statistic with 95% confidence intervals measured using bootstrap resampling with 1000 iterations. Competing risk models adjusted for death were used to measure cumulative incidence of MACE as well as in univariable and multivariable risk regression modeling. Pearson correlations were used to validate CAC scoring. P-values were two tailed and considered significant at P≤0.05. RESULTS Of 233 eligible patients, 61.4% were male with a 68.1 years (range 34.9-90.7) median age. Median follow-up was 73.7 months (range 1.6-153.9). Median overall survival was 34.8 months. Following RT, 22.3% experienced at least one cardiac event at a median time of 21.5 months (range 1.7-118.9). Visual CAC scoring showed significant correlation with automated Agatston scoring (r = 0.72, P=1e-5). While left sided coronary arteries (TotalLeft), mean heart dose (MHD) and CAC scores individually predicted for MACE (AUC = 0.56-0.59), a multivariable model of TotalLeft CAC had the highest ROC analysis performance (AUC = 0.69). On univariable and multivariable competing risk regression analyses, TotalLeft V15 Gy >2.53 cc and CAC score >5 independently associated with MACE (P<0.05). A model incorporating age, TotalLeft CAC>5 and V15>2.53cc, showed incrementally higher MACE incidences for low (9.3%), intermediate (18.4%), and high-risk groups (27.7%) (P<0.01). CONCLUSION RT-induced MACE occurs in >20% of those undergoing thoracic RT in a median time of <2 years. We validate significant associations between TotalLeft RT dose and MACE and establish CAC as a predictive risk factor. These findings may serve to inform personalized RT and future cardiac risk in locally advanced NSCLC.
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Affiliation(s)
- H J No
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - N J Park
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - F B Guo
- University of Rochester School of Medicine and Dentistry, Rochester, NY
| | - N Kastelowitz
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - J M Snyder
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - J W Rhee
- Department of Medicine, Division of Cardiology, City of Hope Comprehensive Cancer Center, Duarte, CA
| | - D E Clark
- Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA
| | - A L Chin
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - L Vitzthum
- Department of Radiation Oncology, Stanford University, Stanford, CA
| | - K C Horst
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - E J Moding
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
| | - B W Loo
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA; Stanford Cancer Institute, Stanford, CA
| | - M Diehn
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA; Stanford Cancer Institute, Stanford, CA
| | - M S Binkley
- Department of Radiation Oncology, Stanford University School of Medicine, Stanford, CA
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Kim TY, Park NJ, Jegal H, Paik JH, Choi S, Kim SN, Yang MH. Nymphoides peltata Root Extracts Improve Atopic Dermatitis by Regulating Skin Inflammatory and Anti-Oxidative Enzymes in 2,4-Dinitrochlorobenzene (DNCB)-Induced SKH-1 Hairless Mice. Antioxidants (Basel) 2023; 12:antiox12040873. [PMID: 37107248 PMCID: PMC10135162 DOI: 10.3390/antiox12040873] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023] Open
Abstract
Nymphoides peltata is widely used pharmacologically in Traditional Chinese Medicine and Ayurvedic medicine as a diuretic, antipyretic, or choleretic and to treat ulcers, snakebites, and edema. Previous studies have shown that phytochemicals from N. peltata have physiological activities such as anti-inflammatory, anti-tumor, and anti-wrinkle properties. Nevertheless, research on the anti-atopic dermatitis (AD) effect of N. peltata extract is limited. This study was undertaken to assess the in vitro and in vivo anti-atopic and antioxidant activities of a 95% EtOH extract of N. peltata roots (NPR). PI-induced RBL-2H3 cells and two typical hapten mice (oxazolone-induced BALB/c mice and 2,4-dinitrochlorobenzene (DNCB)-induced SKH-1 hairless mice) were used to investigate the effect of NPR extract on AD. The expressions of AD-related inflammatory cytokines, skin-related genes, and antioxidant enzymes were analyzed by ELISA, immunoblotting, and immunofluorescence, and skin hydration was measured using Aquaflux AF103 and SKIN-O-MAT instruments. The chemical composition of NPR extract was analyzed using an HPLC-PDA system. In this study, NPR extracts were shown to most efficiently inhibit IL-4 in PI-induced RBL-2H3 cells and AD-like skin symptoms in oxazolone-BALB/c mice compared to its whole and aerial extracts. NPR extract markedly reduced DNCB-induced increases in mast cells, epidermal thickness, IL-4 and IgE expressions, and atopic-like symptoms in SKH-1 hairless mice. In addition, NPR extract suppressed DNCB-induced changes in the expressions of skin-related genes and skin hydration and activated the Nrf2/HO-1 pathway. Three phenolic acids (chlorogenic acid, 3,5-dicaffeoylquinic acid, and 3,4-dicaffeoylquinic acid) were identified by HPLC-PDA in NPR extract. The study shows that NPR extract exhibits anti-atopic activities by inhibiting inflammatory and oxidative stress and improving skin barrier functions, and indicates that NPR extract has potential therapeutic use for the prevention and treatment of AD.
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Affiliation(s)
- Tae-Young Kim
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Jin-Hyub Paik
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Min Hye Yang
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
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Bong SK, Park NJ, Lee SH, Lee JW, Kim AT, Liu X, Kim SM, Yang MH, Kim YK, Kim SN. Trifuhalol A Suppresses Allergic Inflammation through Dual Inhibition of TAK1 and MK2 Mediated by IgE and IL-33. Int J Mol Sci 2022; 23:ijms231710163. [PMID: 36077570 PMCID: PMC9456157 DOI: 10.3390/ijms231710163] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/30/2022] [Accepted: 09/01/2022] [Indexed: 11/16/2022] Open
Abstract
The activation and degranulation of immune cells play a pivotal role in allergic inflammation, a pathological condition that includes anaphylaxis, pruritus, and allergic march-related diseases. In this study, trifuhalol A, a phlorotannin isolated from Agarum cribrosum, inhibited the degranulation of immune cells and the biosynthesis of IL-33 and IgE in differentiated B cells and keratinocytes, respectively. Additionally, trifuhalol A suppressed the IL-33 and IgE-mediated activation of RBL-2H3 cells through the regulation of the TAK1 and MK2 pathways. Hence, the effect of trifuhalol A on allergic inflammation was evaluated using a Compound 48/80-induced systemic anaphylaxis mouse model and a house dust mite (HDM)-induced atopic dermatitis (AD) mouse model. Trifuhalol A alleviated anaphylactic death and pruritus, which appeared as an early-phase reaction to allergic inflammation in the Compound 48/80-induced systemic anaphylaxis model. In addition, trifuhalol A improved symptoms such as itching, edema, erythema, and hyperkeratinization in HDM-induced AD mice as a late-phase reaction. Moreover, the expression of IL-33 and thymic stromal lymphopoietin, inflammatory cytokines secreted from activated keratinocytes, was significantly reduced by trifuhalol A administration, resulting in the reduced infiltration of immune cells into the skin and a reduction in the blood levels of IgE and IL-4. In summarizing the above results, these results confirm that trifuhalol A is a potential therapeutic candidate for the regulation of allergic inflammation.
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Affiliation(s)
- Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Sceience and Technology (KIST), Gangneung 25451, Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Sceience and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
| | - Sang Heon Lee
- Natural Products Research Institute, Korea Institute of Sceience and Technology (KIST), Gangneung 25451, Korea
| | - Jin Woo Lee
- Natural Products Research Institute, Korea Institute of Sceience and Technology (KIST), Gangneung 25451, Korea
| | - Aaron Taehwan Kim
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Xiaoyong Liu
- Haizhibao Deutschland GmbH, Heiliggeistgasse 28, 85354 Freising, Germany
| | - Sang Moo Kim
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 7 Jukheon-gil, Gangneung 25457, Korea
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Sceience and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
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Park NJ, Jo BG, Bong SK, Park SA, Lee S, Kim YK, Yang MH, Kim SN. Lobelia chinensis Extract and Its Active Compound, Diosmetin, Improve Atopic Dermatitis by Reinforcing Skin Barrier Function through SPINK5/LEKTI Regulation. Int J Mol Sci 2022; 23:ijms23158687. [PMID: 35955819 PMCID: PMC9369373 DOI: 10.3390/ijms23158687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/25/2022] [Accepted: 08/02/2022] [Indexed: 01/27/2023] Open
Abstract
The skin acts as a mechanical barrier that protects the body from the exterior environment, and skin barrier function is attributed to the stratum corneum (SC), which is composed of keratinocytes and skin lipids. Skin barrier homeostasis is maintained by a delicate balance between the differentiation and exfoliation of keratinocytes, and keratinocyte desquamation is regulated by members of the serine protease kalikrein (KLK) family and their endogenous inhibitor SPINK5/LEKTI (serine protease inhibitor Kazal type 5/lympho-epithelial Kazal-type-related inhibitor). Furthermore, SPINK5/LEKTI deficiency is involved in impaired skin barrier function caused by KLK over-activation. We sought to determine whether increased SPINK5/LEKTI expression ameliorates atopic dermatitis (AD) by strengthening skin barrier function using the ethanol extract of Lobelia chinensis (LCE) and its active compound, diosmetin, by treating human keratinocytes with UVB and using a DNCB-induced murine model of atopic dermatitis. LCE or diosmetin dose-dependently increased the transcriptional activation of SPINK5 promoter and prevented DNCB-induced skin barrier damage by modulating events downstream of SPINK5, that is, KLK, PAR2 (protease activated receptor 2), and TSLP (thymic stromal lymphopoietin). LCE or diosmetin normalized immune response in DNCB treated SKH-1 hairless mice as determined by reductions in serum immunoglobulin E and interleukin-4 levels and numbers of lesion-infiltrating mast cells. Our results suggest that LCE and diosmetin are good candidates for the treatment of skin barrier-disrupting diseases such as Netherton syndrome or AD, and that they do so by regulating SPINK5/LEKTI.
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Affiliation(s)
- No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
| | - Beom-Geun Jo
- College of Pharmacy, Pusan National University, Busan 46241, Korea
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Sang-a Park
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
| | - Sullim Lee
- Department of Life Science, College of Bio-Nano Technology, Gachon University, Seongnam 13120, Korea
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women’s University, Seoul 04310, Korea
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea
- Correspondence: (M.H.Y.); (S.-N.K.); Tel.: +82-51-513-6754 (M.H.Y.); +82-33-650-3503 (S.-N.K.)
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology (KIST), Gangneung 25451, Korea
- Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology, Seoul 02792, Korea
- Correspondence: (M.H.Y.); (S.-N.K.); Tel.: +82-51-513-6754 (M.H.Y.); +82-33-650-3503 (S.-N.K.)
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Kim TY, Park NJ, Jo BG, Paik JH, Choi S, Kim SN, Yang MH. 7-O-Methylluteolin Suppresses the 2,4-Dinitrochlorobenzene-Induced Nrf2/HO-1 Pathway and Atopic Dermatitis-like Lesions. Antioxidants (Basel) 2022; 11:antiox11071344. [PMID: 35883835 PMCID: PMC9311504 DOI: 10.3390/antiox11071344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/05/2022] [Accepted: 07/05/2022] [Indexed: 12/10/2022] Open
Abstract
7-O-methylluteolin (7-ML) is a flavonoid isolated from the aerial parts of Wikstroemia ganpi (W. ganpi). We describe the anti–atopic dermatitis (AD) effects of 7-ML in tert-butyl hydroperoxide (tBHP)-induced HepG2 cells and 2,4-dinitrochlorobenzene (DNCB)-induced SKH-1 hairless mice. Results demonstrated that 7-ML dose-dependently inhibited the activation of Nrf2 (nuclear factor-erythroid 2-related factor 2) in tBHP-induced HepG2 cells. 7-ML applied topically to our DNCB-induced mouse model upregulated the antioxidant protein expression (phosphorylated Nrf2 (pNrf2), Nrf2, and heme oxygenase-1 (HO-1)) in skin tissues, improved epidermal thickness, and reduced mast cell infiltration into the skin. In addition, 7-ML reduced the serum levels of immunoglobulin E (IgE) and interleukin-4 (IL-4) and improved skin barrier functions. These results suggest that 7-ML should be considered a novel antioxidant and anti-AD agent.
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Affiliation(s)
- Tae-Young Kim
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (B.-G.J.)
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea;
| | - Beom-Geun Jo
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (B.-G.J.)
| | - Jin-Hyub Paik
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (J.-H.P.); (S.C.)
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (J.-H.P.); (S.C.)
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea;
- Correspondence: (S.-N.K.); (M.H.Y.); Tel.: +82-33-650-3503 (S.-N.K.); +82-51-510-2811 (M.H.Y.); Fax: +82-33-650-3419 (S.-N.K.); +82-51-513-6754 (M.H.Y.)
| | - Min Hye Yang
- Department of Pharmacy, College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (B.-G.J.)
- Correspondence: (S.-N.K.); (M.H.Y.); Tel.: +82-33-650-3503 (S.-N.K.); +82-51-510-2811 (M.H.Y.); Fax: +82-33-650-3419 (S.-N.K.); +82-51-513-6754 (M.H.Y.)
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Jegal J, Park NJ, Jo BG, Kim TY, Bong SK, Choi S, Paik JH, Kim JW, Kim SN, Yang MH. Wikstroemiaganpi Extract Improved Atopic Dermatitis-Like Skin Lesions via Suppression of Interleukin-4 in 2,4-Dinitrochlorobenzene-Induced SKH-1 Hairless Mice. Molecules 2021; 26:2016. [PMID: 33916154 PMCID: PMC8036472 DOI: 10.3390/molecules26072016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/26/2021] [Accepted: 03/28/2021] [Indexed: 11/16/2022] Open
Abstract
Plants of the genus Wikstroemia are used in Chinese traditional medicine to treat inflammatory diseases, such as arthritis, bronchitis, and pneumonia. The present study was designed to determine whether Wikstroemia ganpi (Siebold and Zucc.) Maxim. offers a potential means of treating 2,4-dinitrochlorobenzene (DNCB)-induced atopic dermatitis (AD) in mice. Symptoms such as redness, edema, and keratinization in AD mice induced by DNCB were alleviated by the co-application of an ethanolic extract of W. ganpi for 2 weeks. The severity of skin barrier function damage was evaluated by measuring TEWL (transepidermal water loss). TEWLs of DNCB sensitized mouse dorsal skin were reduced by the application of a W. ganpi ethanolic extract, and skin hydration was increased. In addition, the infiltration of inflammatory cells into the dermis was significantly reduced, as were blood levels of IgE and IL-4, which play an important role in the expression of AD. The results of this experiment suggest that W. ganpi is a potential therapeutic agent for AD.
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Affiliation(s)
- Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (J.J.); (B.-G.J.); (T.-Y.K.)
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (N.-J.P.); (S.-K.B.)
| | - Beom-Geun Jo
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (J.J.); (B.-G.J.); (T.-Y.K.)
| | - Tae-Young Kim
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (J.J.); (B.-G.J.); (T.-Y.K.)
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (N.-J.P.); (S.-K.B.)
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (S.C.); (J.-H.P.)
| | - Jin-Hyub Paik
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (S.C.); (J.-H.P.)
| | - Jung-Won Kim
- Department of Costmetology, Changshin University, Paryong-ro, Masanhoewon-gu, Changwon-si 51352, Korea;
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (N.-J.P.); (S.-K.B.)
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (J.J.); (B.-G.J.); (T.-Y.K.)
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Park NJ, Bong SK, Lee S, Jung Y, Jegal H, Kim J, Kim SK, Kim YK, Kim SN. Compound K improves skin barrier function by increasing SPINK5 expression. J Ginseng Res 2020; 44:799-807. [PMID: 33192123 PMCID: PMC7655487 DOI: 10.1016/j.jgr.2019.11.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 09/18/2019] [Accepted: 11/07/2019] [Indexed: 11/26/2022] Open
Abstract
Background The skin acts as a barrier to protect organisms against harmful exogenous agents. Compound K (CK) is an active metabolite of ginsenoside Rb1, Rb2 and Rc, and researchers have focused on its skin protective efficacy. In this study, we hypothesized that increased expression of the serine protease inhibitor Kazal type-5 (SPINK5) may improve skin barrier function. Methods We screened several ginsenosides to increase SPINK5 gene promoter activity using a transactivation assay and found that CK can increase SPINK5 expression. To investigate the protective effect of CK on the skin barrier, RT-PCR and Western blotting were performed to investigate the expression levels of SPINK5, kallikrein 5 (KLK5), KLK7 and PAR2 in UVB-irradiated HaCaT cells. Measurement of transepidermal water loss (TEWL) and histological changes associated with the skin barrier were performed in a UVB-irradiated mouse model and a 1-chloro-2,4-dinitrobenzene (DNCB)-induced atopic dermatitis-like model. Results CK treatment increased the expression of SPINK5 and decreased the expression of its downstream genes, such as KLKs and PAR2. In the UVB-irradiated mouse model and the DNCB-induced atopic dermatitis model, CK restored increased TEWL and decreased hydration and epidermal hyperplasia. In addition, CK normalized the reduced SPINK5 expression caused by UVB or DNCB, thereby restoring the expression of the proteins involved in desquamation to a level similar to normal. Conclusions Our data showed that CK contributes to improving skin-barrier function in UVB-irradiated and DNCB-induced atopic dermatitis-like models through SPINK5. These results suggest that therapeutic attempts with CK might be useful in treating barrier-disrupted diseases.
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Affiliation(s)
- No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Sullim Lee
- Department of Life Science, College of Bio-Nano Technology, Gachon University, Seongnam, Republic of Korea
| | - Yujung Jung
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Jinchul Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Si-Kwan Kim
- Department of Biomedical Chemistry, College of Biomedical & Health Science, Konkuk University, Chungju, Republic of Korea
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women's University, Seoul, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
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Park SA, Bong SK, Lee JW, Park NJ, Choi Y, Kim SM, Yang MH, Kim YK, Kim SN. Diosmetin and Its Glycoside, Diosmin, Improve Atopic Dermatitis- Like Lesions in 2,4-Dinitrochlorobenzene-Induced Murine Models. Biomol Ther (Seoul) 2020; 28:542-548. [PMID: 32938818 PMCID: PMC7585636 DOI: 10.4062/biomolther.2020.135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/19/2020] [Accepted: 08/25/2020] [Indexed: 02/07/2023] Open
Abstract
Naturally derived diosmetin and its glycoside diosmin are known to be effective in treating inflammatory disease. This study was performed to determine whether diosmin and diosmetin have the effect of improving atopic dermatitis in a 2,4-dinitrochlorobenzen (DNCB)-induced atopic dermatitis (AD) model. DNCB was used to establish AD model in hairless mice. Skin moisture, serum immunoglobulin E (IgE), interleukin 4 (IL-4), and histological analysis were performed to measure the effectiveness of diosmin and diosmetine to improve AD. IL-4 levels were also measured in RBL-2H3 cells. Administration of diosmetin or diosmin orally inhibited the progress of DNCB-induced AD-like lesions in murine models by inhibiting transdermal water loss (TEWL) and increasing skin hydration. Diosmetin or diosmin treatment also reduced IgE and IL-4 levels in AD-induced hairless mouse serum samples. However, in the in vitro assay, only diosmetin, not diosmin, reduced the expression level of IL-4 mRNA in RBL-2H3 cells. Diosmin and diosmetine alleviated the altered epidermal thickness and immune cell infiltration in AD. Diosmin is considered effective in the cure of AD and skin inflammatory diseases by being converted into diosmetin in the body by pharmacokinetic metabolism. Thus, oral administration of diosmetin and diosmin might be a useful agent for the treatment of AD and cutaneous inflammatory diseases.
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Affiliation(s)
- Sang-A Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea.,Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Jin Woo Lee
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Yongsoo Choi
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Sang Moo Kim
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung 25457, Republic of Korea
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women's University, Seoul 04610, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
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Kim SN, Park SA, Bong SK, Lee J, Park NJ, Yang MH, Kim YK. Diosmetin and its glycoside, diosmin, improve atopic dermatitis in DNCB‐induced hairless mice. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.09393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Su-Nam Kim
- Natural Products Research Institute Korea Institute of Science and Technology
| | - Sang-A Park
- Natural Products Research Institute Korea Institute of Science and Technology
| | - Sim-Kyu Bong
- Natural Products Research Institute Korea Institute of Science and Technology
| | - Jinwoo Lee
- Natural Products Research Institute Korea Institute of Science and Technology
| | - No-June Park
- Natural Products Research Institute Korea Institute of Science and Technology
| | | | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women’s University
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Lee S, Jegal H, Bong SK, Yoon KN, Park NJ, Shin MS, Yang MH, Kim YK, Kim SN. Anti-Atopic Effect of Acorn Shell Extract on Atopic Dermatitis-Like Lesions in Mice and Its Active Phytochemicals. Biomolecules 2019; 10:E57. [PMID: 31905797 PMCID: PMC7023073 DOI: 10.3390/biom10010057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/23/2019] [Accepted: 12/26/2019] [Indexed: 01/05/2023] Open
Abstract
To investigate the potential effects of acorn shells on atopic dermatitis (AD), we utilized oxazolone (OX)- or 2,4-dinitrochlorobenzene (DNCB)-induced AD-like lesion mouse models. Our research demonstrates that Acorn shell extract (ASE) improved the progression of AD-like lesions, including swelling, which were induced by oxazolone on Balb/c mouse ears. Additionally, ASE significantly decreased the ear thickness (OX: 0.42 ± 0.01 mm, OX-ASE: 0.32 ± 0.02 mm) and epidermal thickness (OX: 75.3 ± 32.6 µm, OX-ASE: 46.1 ± 13.4 µm). The continuous DNCB-induced AD mouse model in SKH-1 hairless mice demonstrated that ASE improved AD-like symptoms, including the recovery of skin barrier dysfunction, Immunoglobulin E hyperproduction (DNCB: 340.1 ± 66.8 ng/mL, DNCB-ASE: 234.8 ± 32.9 ng/mL) and an increase in epidermal thickness (DNCB: 96.4 ± 21.9 µm, DNCB-ASE: 52.4 ± 16.3 µm). In addition, we found that ASE suppressed the levels of AD-involved cytokines, such as Tumor Necrosis Factor α, IL-1β, IL-25 and IL-33 in both animal models. Furthermore, gallic acid and ellagic acid isolated from ASE suppressed β-hexosaminidase release and IL-4 expression in RBL-2H3 cells. The acorn shell and its active phytochemicals have potential as a new remedy for the improvement of atopic dermatitis and other inflammatory diseases.
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Affiliation(s)
- Sullim Lee
- Department of Life Science, College of Bio-Nano Technology, Gachon University, Seongnam 13120, Korea;
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (H.J.); (S.-K.B.); (K.-N.Y.); (N.-J.P.)
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (H.J.); (S.-K.B.); (K.-N.Y.); (N.-J.P.)
| | - Kyeong-No Yoon
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (H.J.); (S.-K.B.); (K.-N.Y.); (N.-J.P.)
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (H.J.); (S.-K.B.); (K.-N.Y.); (N.-J.P.)
| | - Myoung-Sook Shin
- College of Korean Medicine, Gachon University, Seongnam 13120, Korea;
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea;
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women′s University, Seoul 04610, Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea; (H.J.); (S.-K.B.); (K.-N.Y.); (N.-J.P.)
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Kim TY, Park NJ, Jegal J, Choi S, Lee SW, Hang J, Kim SN, Yang MH. Chamaejasmine Isolated from Wikstroemia dolichantha Diels Suppresses 2,4-Dinitrofluoro-benzene-Induced Atopic Dermatitis in SKH-1 Hairless Mice. Biomolecules 2019; 9:biom9110697. [PMID: 31694198 PMCID: PMC6921031 DOI: 10.3390/biom9110697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 10/31/2019] [Accepted: 11/01/2019] [Indexed: 01/02/2023] Open
Abstract
Plants of the genus Wikstroemia have long been used as traditional medicines to treat diseases like pneumonia, rheumatism, and bronchitis. This study was designed to determine the effect of chamaejasmine, a biflavonoid present in W. dolichantha, on atopic dermatitis (AD)-like skin lesions in a 2,4-dinitrochlorobenzene (DNCB)-induced murine model of AD. Initially, we examined the anti-allergic activities of ten flavonoids from W. dolichantha by measuring β-hexosaminidase release from RBL-2H3 cells. Subsequently, an SKH-1 hairless mouse model of AD was developed based on the topical application of DNCB. Chamaejasmine (0.5%) or pimecrolimus (1%, positive control) were applied to dorsal skins of DNCB-sensitized AD mice for two weeks. Serum IL-4 and IgE levels were determined using enzyme-linked immunosorbent assay kits and transepidermal water loss (TEWL) and skin hydration were measured using a Tewameter TM210 and a SKIN-O-MAT, respectively. Of the ten flavonoids isolated from W. dolichantha, chamaejasmine most potently inhibited DNP-specific IgE-induced degranulation in RBL-2H3 cells. Topical administration of chamaejasmine attenuated the clinical symptoms of DNCB-induced dermatitis (i.e., itching, dryness, erythema, and edema). Histological analyses demonstrated that dermal thickness and mast cell infiltration in dermis were significantly reduced by chamaejasmine. In addition, 0.5% chamaejasmine inhibited DNCB-induced increases in total IL-4 and IgE levels in serum, improved skin barrier function, and increased epidermis moisture. Our findings suggest chamaejasmine might be an effective therapeutic agent for the treatment of atopic diseases.
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Affiliation(s)
- Tae-Young Kim
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (J.J.)
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea;
| | - Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (J.J.)
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (S.C.); (S.W.L.)
| | - Sang Woo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea; (S.C.); (S.W.L.)
| | - Jin Hang
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Kunming 650205, China;
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea;
- Correspondence: (S.-N.K.); (M.H.Y.); Tel.: +82-33-650-3503 (S.-N.K.); +82-51-510-2811 (M.H.Y.); Fax: +82-33-650-3419 (S.-N.K.); +82-51-513-6754 (M.H.Y.)
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea; (T.-Y.K.); (J.J.)
- Correspondence: (S.-N.K.); (M.H.Y.); Tel.: +82-33-650-3503 (S.-N.K.); +82-51-510-2811 (M.H.Y.); Fax: +82-33-650-3419 (S.-N.K.); +82-51-513-6754 (M.H.Y.)
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16
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Jo BG, Park NJ, Jegal J, Choi S, Lee SW, Yi LW, Kim SN, Yang MH. Stellera chamaejasme and Its Main Compound Luteolin 7-O-Glucoside Alleviates Skin Lesions in Oxazolone- and 2,4-Dinitrochlorobenzene-Stimulated Murine Models of Atopic Dermatitis. Planta Med 2019; 85:583-590. [PMID: 30273950 DOI: 10.1055/a-0746-8698] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Stellera chamaejasme, also known as "Langdu", has been traditionally used for the management of skin-related diseases such as psoriasis and skin ulcers. The aim of this study was to determine whether S. chamaejasme and its major component, luteolin 7-O-glucoside, have a preventive effect on the development of atopic dermatitis in oxazolone-treated BALB/c mice and 2,4-dinitrochlorobenzene-treated hairless mice. The epicutaneous applications of oxazolone and 2,4-dinitrochlorobenzene evoke an experimental murine atopic dermatitis-like reaction in BALB/c mouse ears and SKH-1 hairless mice. Atopic skin symptoms, including erythema (redness), pruritus (itching), exudation (weeping), excoriation (peeling), and lichenification (skin thickening), responded to treatment with S. chamaejasme aerial parts EtOH extract for 2 or 3 weeks. Histopathological examination revealed S. chamaejasme aerial parts EtOH extract significantly reduced inflammatory cell infiltration when applied to atopic dermatitis mice. In addition, luteolin 7-O-glucoside, the major active compound of the S. chamaejasme aerial parts EtOH extract, decreased serum IgE and IL-4 levels and transepidermal water loss and increased skin hydration, therefore exhibiting strong anti-atopic dermatitis activity in 2,4-dinitrochlorobenzene-induced atopic dermatitis mice. In this study, we confirmed antipruritic and antidermatitic effects of S. chamaejasme extract and its main component luteolin 7-O-glucoside in atopic dermatitis murine models. The study shows S. chamaejasme aerial parts EtOH extract and luteolin 7-O-glucoside are most likely to be potential drug candidates for atopic dermatitis treatment.
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Affiliation(s)
- Beom-Geun Jo
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Sangho Choi
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Sang Woo Lee
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, South Korea
| | - Li Wan Yi
- Institute of Medicinal Plants, Yunnan Academy of Agricultural Sciences, Yunnan, China
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Republic of Korea
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
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17
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Jo BG, Park NJ, Kim SN, Jegal J, Choi S, Lee SW, Yi LW, Lee SR, Kim KH, Yang MH. Isolation of maltol derivatives from Stellera chamaejasme and the anti-atopic properties of maltol on skin lesions in DNCB-stimulated mice. RSC Adv 2019; 9:2125-2132. [PMID: 35516135 PMCID: PMC9059894 DOI: 10.1039/c8ra09743g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 12/18/2018] [Indexed: 11/21/2022] Open
Abstract
The aim of this study was to isolate maltol derivatives from S. chamaejasme and to investigate the anti-atopic dermatitis (anti-AD) effect of maltol in a 2,4-dinitrochlorobenzene (DNCB)-sensitized mouse model of AD.
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Affiliation(s)
- Beom-Geun Jo
- College of Pharmacy
- Pusan National University
- Busan 46241
- South Korea
| | - No-June Park
- Natural Products Research Institute
- Korea Institute of Science and Technology
- Gangneung 25451
- South Korea
| | - Su-Nam Kim
- Natural Products Research Institute
- Korea Institute of Science and Technology
- Gangneung 25451
- South Korea
| | - Jonghwan Jegal
- College of Pharmacy
- Pusan National University
- Busan 46241
- South Korea
| | - Sangho Choi
- International Biological Material Research Center
- Korea Research Institute of Bioscience and Biotechnology
- Daejeon 34141
- South Korea
| | - Sang Woo Lee
- International Biological Material Research Center
- Korea Research Institute of Bioscience and Biotechnology
- Daejeon 34141
- South Korea
| | - Li Wan Yi
- Institute of Medicinal Plants
- Yunnan Academy of Agricultural Sciences
- Yunnan 650205
- China
| | - Seoung Rak Lee
- Natural Product Research Laboratory
- School of Pharmacy
- Sungkyunkwan University
- Suwon
- South Korea
| | - Ki Hyun Kim
- Natural Product Research Laboratory
- School of Pharmacy
- Sungkyunkwan University
- Suwon
- South Korea
| | - Min Hye Yang
- College of Pharmacy
- Pusan National University
- Busan 46241
- South Korea
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18
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Jegal J, Park NJ, Park SA, Bong SK, Jegal H, Kim SN, Yang MH. Juniperus chinensis Fruits Attenuate Oxazolone- and 2,4-Dinitrochlorobenzene-Induced Atopic Dermatitis Symptoms in Mice. Biol Pharm Bull 2018; 41:259-265. [PMID: 29386485 DOI: 10.1248/bpb.b17-00818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Juniperus chinensis, commonly Chinese juniper, has been used for treating inflammatory diseases. This study aimed to investigate anti-atopic dermatitis (AD) effects of standardized J. chinensis fruits extract on murine oxazolone- and 2,4-dinitrochlorobenzene (DNCB)-induced models of AD. Ear swelling, epidermis thickening, and eosinophils infiltration in the oxazolone-mediated dermatitis of BALB/c mice were significantly reduced upon topical application of J. chinensis fruits 95% EtOH extract (JCE). Besides, transdermal administration of JCE to SKH-1 hairless mice inhibited the development of DNCB-induced AD-like skin lesions by suppressing transepidermal water loss and improving skin hydration. Decreased total serum immunoglobulin E (IgE) and interleukin (IL)-4 levels could be observed in atopic dorsal skin samples of JCE-treated group. According to the phytochemical analysis, JCE was found to contain isoscutellarein-7-O-β-D-xyloside, cupressuflavone, and amentoflavone as main compounds. Therapeutic attempts with the J. chinensis fruits might be useful in the treatment of AD and related skin inflammatory diseases.
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Affiliation(s)
| | | | - Sang-A Park
- College of Pharmacy, Pusan National University
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology
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19
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Lee S, Park NJ, Bong SK, Jegal J, Park SA, Kim SN, Yang MH. Ameliorative effects of Juniperus rigida fruit on oxazolone- and 2,4-dinitrochlorobenzene-induced atopic dermatitis in mice. J Ethnopharmacol 2018; 214:160-167. [PMID: 29258854 DOI: 10.1016/j.jep.2017.12.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 05/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The fruits of Juniperus rigida have been used in Korean traditional medicine for the treatment of inflammatory diseases in humans such as rheumatoid arthritis. AIM OF THE STUDY This study aimed to investigate the anti-atopic properties of J. rigida fruit in in vivo murine atopic dermatitis (AD) models. METHODS AND RESULTS BALB/c mouse ears ad SKH-1 hairless mice stimulated with oxazolone (4 weeks) and DNCB (3 weeks), respectively, were treated with the 1% Juniperus rigida fruit EtOH extract (JFE). The JFE improved AD symptoms in both oxazolone- and DNCB-induced AD mice by accelerating skin barrier recovery function and suppressing the overproduction of serum immunoglobulin E (IgE) and interleukin 4 (IL-4). The JFE was found to contain isoscutellarein-7-O-β-xylopyranoside, cupressuflavone, podocarpusflavone A, and hinokiflavone as major components based on phytochemical analysis. Eight flavonoids were isolated from JFE, and of those, cupressuflavone and isoscutellarein-7-O-β-xylopyranoside strongly down-regulated IL-4 expression and β-hexosaminidase release in RBL-2H3 cells. CONCLUSION Therapeutic attempts with J. rigida fruit and its active components might be useful in treating AD and related skin inflammatory diseases.
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Affiliation(s)
- Sullim Lee
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea.
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea.
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea.
| | - Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
| | - Sang-A Park
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea.
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea.
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20
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Jung Y, Kim JC, Park NJ, Bong SK, Lee S, Jegal H, Jin LT, Kim SM, Kim YK, Kim SN. Eupatilin, an activator of PPARα, inhibits the development of oxazolone-induced atopic dermatitis symptoms in Balb/c mice. Biochem Biophys Res Commun 2018; 496:508-514. [PMID: 29353040 DOI: 10.1016/j.bbrc.2018.01.098] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Accepted: 01/15/2018] [Indexed: 11/16/2022]
Abstract
Eupatilin (5,7-dihydroxy-3',4',6-trimethoxyflavone) is the main lipophilic flavonoid obtained from the Artemisia species. Eupatilin has been reported to have anti-apoptotic, anti-oxidative and anti-inflammatory activities. Previously, we found that eupatilin increases transcriptional activity and expression of peroxisome proliferator-activated receptor α (PPARα) in a keratinocyte cell line and acts as an agonist of PPARα. PPARα agonists ameliorate atopic dermatitis (AD) and restore the skin barrier function. In this study, we confirmed that the effects of eupatilin improved AD-like symptoms in an oxazolone-induced AD-like mouse model. Furthermore, we found that eupatilin suppressed the levels of serum immunoglobulin E (IgE), interleukin-4 (IL-4), and AD involved cytokines, such as tumor necrosis factor α (TNFα), interferon-γ (IFN-γ), IL-1β, and thymic stromal lymphopoietin (TSLP), IL-33, IL-25 and increased the levels of filaggrin and loricrin in the oxazolone-induced AD-like mouse model. Taken together, our data suggest that eupatilin is a potential candidate for the treatment of AD.
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Affiliation(s)
- Yujung Jung
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - Jin-Chul Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - Sullim Lee
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea
| | - Li Tai Jin
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou 325000, China
| | - Sang Moo Kim
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon-do 25457, Republic of Korea
| | - Yong Kee Kim
- College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung, Gangwon-do 25451, Republic of Korea.
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21
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Jegal J, Park NJ, Bong SK, Jegal H, Kim SN, Yang MH. Dioscorea quinqueloba Ameliorates Oxazolone- and 2,4-Dinitrochlorobenzene-induced Atopic Dermatitis Symptoms in Murine Models. Nutrients 2017; 9:nu9121324. [PMID: 29206209 PMCID: PMC5748774 DOI: 10.3390/nu9121324] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/28/2017] [Accepted: 11/29/2017] [Indexed: 01/29/2023] Open
Abstract
Dioscorea quinqueloba has been used for food substances, as well as in herbal medicines for allergic diseases such as asthma. This study aimed to investigate the anti-atopic dermatitis (AD) effects of the total extract of D. quinqueloba rhizomes and active fractionson murine oxazolone- and 2,4-dinitrochlorobenzene-induced models of AD. Specific AD symptoms, such as erythema, ear swelling, and epidermis thickening, were significantly reduced in the oxazolone-mediated AD BALB/c mice upon topical application of D. quinqueloba rhizomes 95% EtOH extract (DQ). DQEA (D. quinqueloba rhizomes EtOAc fraction) was beneficial for protecting the skin barrier against AD in DNCB-sensitized SKH-1 hairless mice. Decreased total serum IgE and IL-4 levels could be observed in atopic dorsal skin samples of the DQEA-treated group. On the basis of the phytochemical analysis, DQEA was found to contain dioscin and gracillin as its main compounds. Therapeutic applications with D. quinqueloba might be useful in the treatment of AD and related inflammatory skin diseases.
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Affiliation(s)
- Jonghwan Jegal
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
| | - No-June Park
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Sim-Kyu Bong
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Hyun Jegal
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Su-Nam Kim
- Natural Products Research Institute, Korea Institute of Science and Technology, Gangneung 25451, Korea.
| | - Min Hye Yang
- College of Pharmacy, Pusan National University, Busan 46241, Korea.
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22
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Choe PG, Shin HY, Shin MJ, Song KH, Kim ES, Jin HY, Choi YH, Choi OJ, Park KH, Park NJ, Kim KH, Han SH, Choo EJ, Kim HB. P003: Current status of infection control practice for prevent of central venous catheter-associated bloodstream infection in Korea. Antimicrob Resist Infect Control 2013. [PMCID: PMC3688028 DOI: 10.1186/2047-2994-2-s1-p3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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23
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Abstract
Human saliva contains thousands of mRNAs, some of which have translational value as diagnostic markers for human diseases. We have found that more than 30% of the mRNAs detected in human saliva contain AU-rich elements (ARE) in their 3' untranslated regions (3'UTR). Since AREs are known to contribute to RNA turnover by forming complexes with ARE-binding proteins, we hypothesized that salivary mRNA stability is mediated by ARE-binding proteins in human saliva. To test this hypothesis, we monitored the in vitro degradation of a radiolabeled ARE-containing salivary mRNA (IL-8) in salivary protein extracts. The degradation of IL-8 mRNA was accelerated by competition for saliva ARE-binding proteins through the addition of excess unlabeled IL-8 mRNA fragments containing 4 tandem AREs. UV cross-linking and immunoprecipitation experiments revealed 2 ARE-binding proteins, AUF1 and HuR, associated with IL-8 mRNA in saliva. These results demonstrate that ARE-binding proteins contribute to the stability of ARE mRNAs in human saliva.
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Affiliation(s)
- V Palanisamy
- School of Dentistry and Dental Research Institute, University of California Los Angeles, Los Angeles, CA 90095-1668, USA
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24
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Tran DP, Kim SJ, Park NJ, Jew TM, Martinson HG. Mechanism of poly(A) signal transduction to RNA polymerase II in vitro. Mol Cell Biol 2001; 21:7495-508. [PMID: 11585929 PMCID: PMC99921 DOI: 10.1128/mcb.21.21.7495-7508.2001] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2001] [Accepted: 07/26/2001] [Indexed: 11/20/2022] Open
Abstract
Termination of transcription by RNA polymerase II usually requires the presence of a functional poly(A) site. How the poly(A) site signals its presence to the polymerase is unknown. All models assume that the signal is generated after the poly(A) site has been extruded from the polymerase, but this has never been tested experimentally. It is also widely accepted that a "pause" element in the DNA stops the polymerase and that cleavage at the poly(A) site then signals termination. These ideas also have never been tested. The lack of any direct tests of the poly(A) signaling mechanism reflects a lack of success in reproducing the poly(A) signaling phenomenon in vitro. Here we describe a cell-free transcription elongation assay that faithfully recapitulates poly(A) signaling in a crude nuclear extract. The assay requires the use of citrate, an inhibitor of RNA polymerase II carboxyl-terminal domain phosphorylation. Using this assay we show the following. (i) Wild-type but not mutant poly(A) signals instruct the polymerase to stop transcription on downstream DNA in a manner that parallels true transcription termination in vivo. (ii) Transcription stops without the need of downstream elements in the DNA. (iii) cis-antisense inhibition blocks signal transduction, indicating that the signal to stop transcription is generated following extrusion of the poly(A) site from the polymerase. (iv) Signaling can be uncoupled from processing, demonstrating that signaling does not require cleavage at the poly(A) site.
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Affiliation(s)
- D P Tran
- Department of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, California 90095-1569, USA
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25
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Park NJ, Kamble ST. Decapitation impacting effect of topically applied chlorpyrifos on acetylcholinesterase and general esterases in susceptible and resistant German cockroaches (Dictyoptera: Blattellidae). J Econ Entomol 2001; 94:499-505. [PMID: 11332845 DOI: 10.1603/0022-0493-94.2.499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effect of topically applied chlorpyrifos on acetylcholinesterase and other esterases in heads and decapitated bodies of CSMA and Crawford German cockroaches was examined with spectrophotometric enzyme assay and native polyacrylamide gel electrophoresis. The toxicity of chlorpyrifos was greatly reduced in decapitated CSMA male cockroaches with LD50 value 17.1-fold higher than that of normal CSMA cockroaches. Acetylcholinesterase activity from heads was significantly higher in the Crawford compared with the CSMA strain and did not change until 24 h after chlorpyrifos in vivo treatment in both strains. The p-nitrophenyl butyrate (NPB) esterase activities from both heads and decapitated bodies of the resistant Crawford strain were significantly greater than the susceptible CSMA strain. The p-NPB esterase activity was significantly inhibited by chlorpyrifos in vivo treatment, and total p-NPB esterase activity was significantly reduced in decapitated bodies compared with heads of both strains. Native polyacrylamide gel electrophoresis (PAGE) analysis of extracts solubilized with Triton X-100 from heads and decapitated bodies revealed five major esterase bands and an acetylcholinesterase (AChE) band with a high capability of hydrolyzing alpha-naphthyl butyrate and acetylthiocholine, respectively. In the heads of susceptible CSMA male cockroaches, the activity of mobile isozymes d1 and d2 was completely inhibited at 24 h after chlorpyrifos application, and isozyme e was partially inhibited. In contrast, isozymes c1 and c2 from the decapitated bodies of CSMA cockroaches were mostly affected at 24 h after the topical application of chlorpyrifos. The activities of acetylcholinesterase and esterase isozymes a and b from the decapitated body remained uninhibited in both strains. Inhibition of isozymes d1 and d2 seems to be more important in chlorpyrifos intoxication than acetylcholinesterase.
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Affiliation(s)
- N J Park
- Department of Entomology, University of Nebraska, Lincoln 68583-0816, USA
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26
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Abstract
Nutritional support in the form of total parenteral nutrition (TPN) or enteral nutrition (EN) is successfully used in patients with pancreatitis, in whom the goal is to provide optimal nutrition while minimizing pancreatic exocrine activity. Controversy continues as to whether TPN or EN is more appropriate. Although TPN is traditionally preferred in acute pancreatitis, EN offers some advantages, being more physiologic, safer, and more cost-effective. A review of available animal and human studies suggests that elemental diets may be effective in patients with mild acute pancreatitis. In patients who have no clinical indication for restricting the gastrointestinal tract, EN may be preferred.
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Affiliation(s)
- P B Kale-Pradhan
- Department of Pharmacy Practice, Wayne State University, Detroit, Michigan, USA
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27
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Park NJ, Kamble ST. Comparison of esterases between life stages and sexes of resistant and susceptible strains of German cockroach (Dictyoptera: Blattellidae). J Econ Entomol 1998; 91:1051-1058. [PMID: 9805497 DOI: 10.1093/jee/91.5.1051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Esterase activity between the resistant Crawford and susceptible CSMA strains of German cockroach, Blattella germanica (L.), was compared with the substrates alpha- and beta-naphthyl acetate across sex and nymphal age classes. Esterase isozyme analysis with native polyacrylamide gel electrophoresis also was conducted to identify quantitative and qualitative differences between strains, sexes, and age classes. The Crawford strain was highly resistant to cypermethrin, propoxur, and permethrin with a resistant ratio (RR) of 17.26, 15.75, and 13.53, respectively, and mildly resistant to chlorpyrifos (RR 5.62). The alpha-NA and beta-NA esterase activities in the Crawford strain were significantly higher than those activities in the CSMA strain in both nymphal and adult stages. In the Crawford strain, the enzyme activity in nymphs was significantly higher than that in adults, but such differences were not observed in the CSMA strain. The mobile isozymes a and c stained more intensely than others in every developmental stage and sex of both strains but showed greater intensity in the Crawford strain. Another intensely stained isozyme b was observed only in the homogenates from the Crawford strain. The combination of isozyme b and the overproduced isozyme a and c in the Crawford strain seems to be responsible for the difference in total esterase activity between the CSMA and Crawford strains.
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Affiliation(s)
- N J Park
- Department of Entomology, University of Nebraska-Lincoln 68583-0816, USA
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28
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Yeung G, Choi LM, Chao LC, Park NJ, Liu D, Jamil A, Martinson HG. Poly(A)-driven and poly(A)-assisted termination: two different modes of poly(A)-dependent transcription termination. Mol Cell Biol 1998; 18:276-89. [PMID: 9418875 PMCID: PMC121491 DOI: 10.1128/mcb.18.1.276] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/1997] [Accepted: 10/13/1997] [Indexed: 02/05/2023] Open
Abstract
We mapped the elements that mediate termination of transcription downstream of the chicken betaH- and betaA-globin gene poly(A) sites. We found no unique element and no segment of 3'-flanking DNA to be significantly more effective than any other. When we replaced the native 3'-flanking DNA with bacterial DNA, it too supported transcription termination. Termination in the bacterial DNA depended on a functional poly(A) signal, which apparently compelled termination to occur in the downstream DNA with little regard for its sequence. We also studied premature termination by poorly processive polymerases close to the promoter. The rate of premature termination varied for different DNA sequences. However, the efficiencies of poly(A)-driven termination and promoter-proximal premature termination varied similarly on different DNAs, suggesting that poly(A)-driven termination functions by returning the transcription complex to a form which resembles a prior state of low processivity. The poly(A)-driven termination described here differs dramatically from the poly(A)-assisted termination previously described for the simian virus 40 (SV40) early transcription unit. In the SV40 early transcription unit, essentially no termination occurs downstream of the poly(A) site unless a special termination element is present. The difference between the betaH-globin and SV40 modes of termination is governed by sequences in the upstream DNA. For maximum efficiency, the betaH-globin poly(A) signal required the assistance of upstream enhancing sequences. Moreover, the SV40 early poly(A) signal also drove termination in betaH-globin style when it was placed in a betaH-globin sequence context. These studies were facilitated by a rapid, improved method of run-on transcription analysis, based on the use of a vector containing two G-free cassettes.
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Affiliation(s)
- G Yeung
- Department of Chemistry and Biochemistry, University of California at Los Angeles, 90095-1569, USA
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29
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Yamamoto K, Masuzawa M, Kato M, Kurosawa K, Kaneko A, Ishida H, Imamura E, Park NJ, Shirai Y, Fujimoto K, Michida T, Hayashi N, Ikeda M. Evaluation of combined therapy with chemoembolization and ethanol injection for advanced hepatocellular carcinoma. Semin Oncol 1997; 24:S6-50-S6-55. [PMID: 9151917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
To evaluate the therapeutic efficacy of transcatheter arterial chemoembolization (TACE) combined with percutaneous ethanol injection therapy (PEIT) for advanced hepatocellular carcinoma, we studied the effectiveness of TACE therapy combined with PEIT (50 cases) and TACE alone (50 cases). In both groups, patients had multiple lesions, or a single lesion with a diameter exceeding 2 cm or with vascular invasion (stages II, III, and IV in the tumor staging classification of the Liver Cancer Study Group of Japan). The clinical features in the two groups were comparable. The cumulative survival rates with TACE-PEIT were 95.0% for 1 year, 72.5% for 2 years, and 50.0% for 3 years, whereas the rates with TACE alone were 92.5% for 1 year, 57.5% for 2 years, and 20.0% for 3 years. The survival rate in the TACE-PEIT group was significantly higher than that in the TACE alone group. Moreover, the survival rate of patients with stage II or III disease in the TACE-PEIT group was significantly better than that in the TACE alone group, and the survival rate of patients with Child's classification B or C in the TACE-PEIT group was significantly higher than that in the TACE alone group. Multivariate analysis using Cox's proportional hazard regression model showed that the most significant prognostic factors in the TACE-PEIT group were tumor embolus in the portal vein and the number of tumors. These results suggest the effectiveness of combining TACE and PEIT for the treatment of advanced hepatocellular carcinoma.
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Affiliation(s)
- K Yamamoto
- Department of Gastroenterology, Osaka National Hospital, Chuo-ku, Japan
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30
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Choi KH, Kim DJ, Shim JS, Choi MJ, Park NJ, Kim BO, Yu YH, Choi EC. In-vitro and in-vivo activity of DWC-751, a new cephalosporin. J Antimicrob Chemother 1994; 33:1233-7. [PMID: 7646611 DOI: 10.1093/jac/33.6.1233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- K H Choi
- College of Pharmacy, Seoul National University, Korea
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31
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Abstract
1. The urea content of ileostomy effluent has been measured by the urease method as an indirect estimate of the urea concentration in the lumen of the normal ileum. 2. The plasma disappearance of intravenously administered[14C]urea was used to study intestinal urea breakdown. Normal subjects on high and low protein diets and patients with either excised (i.e. with ileostomies) or excluded colons were studied. 3. The 24 h intestinal urea breakdown was considerably greater than the quantity of urea estimated to be entering the colon from the ileum and across the colonic mucosa. 4. Intestinal urea breakdown increased with increase in dietary protein and decreased with, but was not abolished by, exclusion or excision of the colon. 5. Our results suggest that the colonic lumen is not the only site of intestinal ureolysis and that significant quantities of urea must be broken down either at a juxtamucosal site or in the ileum.
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32
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Silk DB, Fairclough PD, Park NJ, Lane AE, Webb JP, Clark ML, Dawson AM. A study of relations between the absorption of amino acids, dipeptides, water and electrolytes in the normal human jejunum. Clin Sci Mol Med 1975; 49:401-8. [PMID: 1192697 DOI: 10.1042/cs0490401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
1. A double-lumen perfusion technique was used to study the effect of a wide range of concentrations of the dipeptide glycyl-L-alanine and its constituent amino acids on water and electrolyte absorption from iso-osmotic solutions in the upper jejunum of normal human subjects. 2. There was no significant absorption of water and electrolytes from sodium chloride solution (150 mmol/l) but the presence of the dipeptide or its constituent amino acids stimulated water and electrolyte absorption. 3. Water absorption reached a peak at increasing amino acid and dipeptide concentrations and then tailed off. Our data suggest that the tailing off is not solely due to the diminished sodium content of the solutions. 4. During perfusion of the dipeptide-sodium chloride and amino acid-sodium chloride solutions solute and water were absorbed as an iso-osmotic solution. Analysis of the results indicates that this could occur at high dipeptide concentrations only if the majority of the dipeptide enters the cell intact.
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