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Awasthi BP, Lee H, Jeong BS. Synthesis of Pyridoxine-Derived Dimethylpyridinols Fused with Aminooxazole, Aminoimidazole, and Aminopyrrole. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072075. [PMID: 35408475 PMCID: PMC9000659 DOI: 10.3390/molecules27072075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/16/2022]
Abstract
Described in this paper are studies on the preparation of three classes of dimethylpyridinols derived from pyridoxine fused with aminooxazole, aminoimidazole, and aminopyrrole. The key feature of this synthetic strategy is the manipulation of hydroxymethyl moiety of C(5)-position of the pyridoxine starting material along with the installation of an amino group at C(6)-position. Efficient and practical synthesis for the oxazole- and imidazole-fused targets was accomplished, while the instability of the pyrrole-fused one was observed.
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Affiliation(s)
| | - Hyunji Lee
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea;
- Department of Chemistry and Howard Hughes Medical Institute, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA
- Correspondence: (H.L.); (B.-S.J.)
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan 38541, Korea;
- Correspondence: (H.L.); (B.-S.J.)
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Awasthi BP, Chaudhary P, Guragain D, Jee JG, Kim JA, Jeong BS. Synthesis and anti-hepatocellular carcinoma activity of aminopyridinol-sorafenib hybrids. J Enzyme Inhib Med Chem 2021; 36:1884-1897. [PMID: 34340602 PMCID: PMC8344761 DOI: 10.1080/14756366.2021.1953997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Sorafenib is recommended as the primary therapeutic drug for patients with hepatocellular carcinoma. To discover a new compound that avoids low response rates and toxic side effects that occur in sorafenib therapy, we designed and synthesized new hybrid compounds of sorafenib and 2,4,5-trimethylpyridin-3-ols. Compound 6 was selected as the best of 24 hybrids that inhibit each of the four Raf kinases. The anti-proliferative activity of 6 in HepG2, Hep3B, and Huh7 cell lines was slightly lower than that of sorafenib. However, in H6c7 and CCD841 normal epithelial cell lines, the cytotoxicity of 6 was much lower than that of sorafenib. In addition, similar to sorafenib, compound 6 inhibited spheroid forming ability of Hep3B cells in vitro and tumour growth in a xenograft tumour model of the chick chorioallantoic membrane implanted with Huh7 cells. Compound 6 may be a promising candidate targeting hepatocellular carcinoma with low toxic side effects on normal cells.
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Affiliation(s)
| | - Prakash Chaudhary
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Diwakar Guragain
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Jun-Goo Jee
- College of Pharmacy, Kyungpook National University, Daegu, Republic of Korea
| | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
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Lee H, Lee JS, Cho HJ, Lee YJ, Kim ES, Kim SK, Nam TG, Jeong BS, Kim JA. Antioxidant Analogue 6-Amino-2,4,5-Trimethylpyridin-3-ol Ameliorates Experimental Colitis in Mice. Dig Dis Sci 2021; 66:1022-1033. [PMID: 32361923 DOI: 10.1007/s10620-020-06267-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 04/10/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Oxidative stress has been suggested to be a factor contributing to the disease severity of inflammatory bowel disease (IBD). BJ-1108, a derivative of 6-amino-2,4,5-trimethylpyridin-3-ol, is reported to significantly inhibit the generation of reactive oxygen species (ROS) in vitro. However, whether this molecule affects intestinal inflammation is largely unknown. We aimed to investigate the effect of BJ-1108 on dextran sulfate sodium (DSS)-induced experimental colitis in mice. METHODS Colitis was induced in mice with DSS, and disease severity was estimated by evaluating body weight, colon length, histology, immune cell infiltration, and intestinal permeability. We examined the protective effects of BJ-1108 on barrier function using Caco-2 cells. Last, we estimated the impact of BJ-1108 on the phosphorylation of NF-kB, PI3K/AKT, and mitogen-activated protein kinases. RESULTS Mice treated with BJ-1108 exhibited improved disease severity, as indicated by evaluations of body weight, histological scores, spleen weight, and infiltrates of T cells and macrophages. The administration of BJ-1108 inhibited the colonic mRNA expression of IL-6 and IL-1β in vivo. Additionally, BJ-1108 limited intestinal permeability and enhanced the expression of tight junction (TJ) proteins such as claudin-1 and claudin-3 in the DSS-induced colitis model. In an in vitro model using Caco-2 cells, BJ-1108 ameliorated cytokine-induced ROS generation in a dose-dependent manner and remarkably recovered barrier dysfunction as estimated by evaluating transepithelial electrical resistance and TJ protein expression. BJ-1108 suppressed the NF-kB/ERK/PI3K pathway. CONCLUSIONS This study demonstrated that BJ-1108 ameliorated intestinal inflammation in an experimental colitis mouse model, suggesting possible therapeutic implications for IBD.
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Affiliation(s)
- Hoyul Lee
- Leading-Edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University Hospital, Daegu, South Korea.,Bio-Medical Research Institute, Kyungpook National University Hospital, Daegu, South Korea
| | - Joon Seop Lee
- Division of Gastroenterology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Hyun Jung Cho
- Division of Gastroenterology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea
| | - Yu-Jeong Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Eun Soo Kim
- Division of Gastroenterology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea. .,Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea.
| | - Sung Kook Kim
- Division of Gastroenterology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, South Korea.,Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Tae-Gyu Nam
- College of Pharmacy, Hanyang University, Ansan, South Korea
| | | | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, South Korea
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Chaudhary CL, Chaudhary P, Dahal S, Bae D, Nam TG, Kim JA, Jeong BS. Inhibition of colitis by ring-modified analogues of 6-acetamido-2,4,5-trimethylpyridin-3-ol. Bioorg Chem 2020; 103:104130. [PMID: 32745758 DOI: 10.1016/j.bioorg.2020.104130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/02/2020] [Accepted: 07/20/2020] [Indexed: 12/16/2022]
Abstract
6-Aminopyridin-3-ol scaffold has shown an excellent anti-inflammatory bowel disease activity. Various analogues with the scaffold were synthesized in pursuit of the diversity of side chains tethering on the C(6)-position. Structure-activity relationship among the analogues was investigated to understand the effects of the side chains and their linkers on their anti-inflammatory activities. In this study, structural modification moved beyond side chains on the C(6)-position and reached to pyridine ring itself. It expedited us to synthesize diverse ring-modified analogues of a representative pyridine-3-ol, 6-acetamido-2,4,5-trimethylpyridin-3-ol (9). In the evaluation of compounds on their inhibitory actions against TNF-α-induced adhesion of monocytic cells to colonic epithelial cells, an in vitro model mimicking colon inflammation, the effects of compounds 9, 17, and 19 were greater than tofacitinib, an orally available anti-colitis drug, and compound 17 showed the greatest activity. In addition, TNF-α-induced angiogenesis, which permits more inflammatory cell migration into inflamed tissues, was significantly blocked by compounds 17 and 19 in a concentration-dependent manner. In the comparison of in vivo therapeutic effects of compounds 9, 17, and 19 on dextran sulfate sodium (DSS)-induced colitis in mice, compound 17 was the most potent and efficacious, and compound 19 was better than compound 9 which showed a similar degree of inhibitory effect to tofacitinib. Taken together, it seems that either the trimethyl system or the hydroxyl group on the pyridinol ring is essential to the activity. This finding might become a new milestone in the development of pyridinol-based anti-inflammatory bowel disease agents.
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Affiliation(s)
- Chhabi Lal Chaudhary
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Prakash Chaudhary
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sadan Dahal
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Dawon Bae
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Tae-Gyu Nam
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
| | - Jung-Ae Kim
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Byeong-Seon Jeong
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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Antitumor activity of BJ-1207, a 6-amino-2,4,5-trimethylpyridin-3-ol derivative, in human lung cancer. Chem Biol Interact 2018; 294:1-8. [DOI: 10.1016/j.cbi.2018.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/01/2018] [Accepted: 08/15/2018] [Indexed: 11/17/2022]
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Acharya S, Timilshina M, Jiang L, Neupane S, Choi DY, Park SW, Lee SY, Jeong BS, Kim JA, Nam TG, Chang JH. Amelioration of Experimental autoimmune encephalomyelitis and DSS induced colitis by NTG-A-009 through the inhibition of Th1 and Th17 cells differentiation. Sci Rep 2018; 8:7799. [PMID: 29773813 PMCID: PMC5958108 DOI: 10.1038/s41598-018-26088-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 05/04/2018] [Indexed: 12/13/2022] Open
Abstract
CD4+ T cells are the central for the mammalian adaptive immune system. Naïve CD4+ T cells mainly differentiate in to pro-inflammatory Th1, Th2 and Th17 cells upon antigenic stimulation. IFN-γ secreting Th1 cells and IL-17 secreting Th17 cells are found to play key roles in autoimmune diseases like multiple sclerosis (MS) and ulcerative colitis (UC). In this study we found NTG-A-009, 6-aminopyridin-3-ol, has great inhibitory effect on in vitro differentiation of Th1 and Th17 cells without affecting regulatory T cells. Moreover, NTG-A-009 had no effect on CD4+ T cell proliferation and viability. In vivo treatment has shown that NTG-A-009 has ameliorated experimental autoimmune encephalomyelitis (EAE) and dextran sulfate sodium (DSS) induced colitis through the inhibition of Th1 and Th17 cells differentiation. Mechanistically, NTG-A-009 suppressed Th1 and Th17 cells differentiation via the modulation of JAK/STAT signaling pathway. Thus, our data demonstrated that NTG-A-009 ameliorated inflammation through the inhibition of Th1 and Th17 cells generation making it a potential therapeutic candidate for the treatment of inflammatory diseases.
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Affiliation(s)
- Suman Acharya
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | | | - Liyuan Jiang
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Sabita Neupane
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Dong-Young Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Sang Won Park
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Sang Yeul Lee
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Jung-Ae Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Tae-Gyu Nam
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea.
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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Bae D, Gautam J, Jang H, Banskota S, Lee SY, Jeong MJ, Kim AS, Kim HC, Lee IH, Nam TG, Kim JA, Jeong BS. Protective effects of 6-ureido/thioureido-2,4,5-trimethylpyridin-3-ols against 4-hydroxynonenal-induced cell death in adult retinal pigment epithelial-19 cells. Bioorg Med Chem Lett 2017; 28:107-112. [PMID: 29208521 DOI: 10.1016/j.bmcl.2017.11.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 12/16/2022]
Abstract
Dysfunction or progressive degeneration of retinal pigment epithelium (RPE) contributes in the initial pathogenesis of age-related macular degeneration (AMD) causing irreversible vision loss, which makes RPE the prime target of the disease. The present study aimed to identify compounds to protect 4-hydroxynonenal (4-HNE)-induced RPE cell death by inhibiting NADPH oxidase 4 (NOX4) activity, not just as free radical scavengers, using ARPE-19, a human adult retinal pigment epithelial cell line, as a RPE representative. Novel thirty-two 6-ureido/thioureido-2,4,5-trimethylpyridin-3-ol derivatives 17 were synthesized and tested. We found that there was a strong correlation between level of protective effect of compounds 17 against 4-HNE-induced APRE-19 cell death and that of inhibitory activity against 4-HNE-induced superoxide production, and that most of the compounds 17 showed minimal DPPH radical scavenging activity. Compound 17-28 showed the best protective activity against 4-HNE-induced superoxide production (79.5% inhibition) and cell death (85.1% recovery) at 10 μM concentration, which was better than that of VAS2870, a NOX2/4 inhibitor. In addition, compound 17-28 blocked 4-HNE-induced apoptosis of ARPE-19 cells in a concentration-dependent manner. The results indicate that compound 17-28 may be a lead compound to develop AMD therapeutics.
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Affiliation(s)
- Dawon Bae
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jaya Gautam
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Hyeonjin Jang
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Suhrid Banskota
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sang Yeul Lee
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Min-Ji Jeong
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - A-Sol Kim
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Hong Chul Kim
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Iyn-Hyang Lee
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Tae-Gyu Nam
- Department of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Gyeonggi-do 15588, Republic of Korea.
| | - Jung-Ae Kim
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Byeong-Seon Jeong
- College of Pharmacy and Institute for Drug Research, Yeungnam University, Gyeongsan 38541, Republic of Korea.
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You Z, Timilshina M, Jeong BS, Chang JH. BJ-2266 ameliorates experimental autoimmune encephalomyelitis through down-regulation of the JAK/STAT signaling pathway. Eur J Immunol 2017; 47:1488-1500. [PMID: 28681958 DOI: 10.1002/eji.201646860] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 05/11/2017] [Accepted: 07/03/2017] [Indexed: 12/24/2022]
Abstract
CD4+ T cells differentiate into distinct effector subsets upon antigenic stimulation. Cytokines, and micro-environmental factors present during T-cell priming, direct differentiation of naïve CD4+ T cells into pro-inflammatory Th1 and Th17 cells. From extensive screening of 2,4,5-trimethylpyridin-3-ol derivatives with various functional groups at C(6)-position, BJ-2266, a 6-thioureido-derivative, showed potent inhibitory activity on in vitro T helper (Th)-cell differentiation. This compound inhibited IFN-γ and IL-17 production from polyclonal CD4+ T cells and ovalbumin (OVA)-specific CD4+ T cells that were activated by T-cell receptor (TCR) engagement. We assessed the inhibitory effect of BJ-2266 in experimental autoimmune encephalomyelitis (EAE). Our results suggest that BJ-2266 treatment significantly suppresses EAE disease progression with reduced generation of Th1 and Th17 cells. Notably, Th-cell differentiation was significantly suppressed by BJ-2266 treatment with no effect on apoptosis, activation and proliferation of activated T cells. Furthermore, adoptive transfer of BJ-2266 treated MOG-reactive Th1 and Th17 cells led to a lower EAE disease score and better clinical recovery from EAE. The underlying mechanism of BJ-2266 effect involved the inhibition of JAK/STAT phosphorylation that is critical for Th-cell differentiation. We conclude that BJ-2266 regulates the JAK/STAT pathway in response to cytokine signals and subsequently suppresses the differentiation of Th-cell responses.
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Affiliation(s)
- Zhiwei You
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | | | - Byeong-Seon Jeong
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Jae-Hoon Chang
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
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