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Chou SSP, Liu CF. A Rapid, Solvent-Free Phase-Transfer Catalysis Procedure forN-Alkylation of Dihydropyridones and Construction of the Indolizidine, Quinolizidine and Pyridoazepine Structures. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201000113] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Chou SSP, Kao CH. Synthetic Transformations of Sulfur-Substituted 4-Quinolizidinones. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Liew YF, Huang CT, Chou SSP, Kuo YC, Chou SH, Leu JY, Tzeng WF, Wang SJ, Tang MC, Huang RFS. The isolated and combined effects of folic acid and synthetic bioactive compounds against Abeta(25-35)-induced toxicity in human microglial cells. Molecules 2010; 15:1632-44. [PMID: 20336004 PMCID: PMC6257320 DOI: 10.3390/molecules15031632] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 03/10/2010] [Accepted: 03/10/2010] [Indexed: 01/23/2023] Open
Abstract
Folic acid plays an important role in neuronal development. A series of newly synthesized bioactive compounds (NSCs) was reported to exhibit immunoactive and neuroprotective functions. The isolated and combined effects of folic acid and NSCs against beta-amyloid (Abeta)-induced cytotoxicity are poorly understood. These effects were tested using human microglia cells (C13NJ) subjected to Abeta(25-35) challenge. According to an MTT assay, treatment of C13NJ cells with Abeta(25-35) at 10-100 microM for 48 h induced 18%-43% cellular death in a dose-dependent manner (p < 0.05). Abeta(25-35) treatment at 25 microM induced nitrite oxide (NO) release, elevated superoxide production, and reduced the distribution of cells in the S phase. Preincubation of C13NJ with 100 microM folic acid protected against Abeta(25-35)-induced cell death, which coincided with a reduction in NO release by folic acid supplements. NSC47 at a level of 50 microM protected against Abeta(25-35)-induced cell death and reduced Abeta-promoted superoxide production (p < 0.05). Folic acid in combination with NSC47 at their cytoprotective doses did not synergistically ameliorate Abeta(25-35)-associated NO release, superoxide production, or cell cycle arrest. Taken together, folic acid or NSC treatment alone, but not the combined regimen, protected against Abeta(25-35)-induced cell death, which may partially, if not completely, be mediated by free radical-scavenging effects.
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Affiliation(s)
- Yih-Fong Liew
- Department of Nutritional Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-F.L.); (C.-T.H.); (M.-C.T.)
| | - Chao-Tzu Huang
- Department of Nutritional Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-F.L.); (C.-T.H.); (M.-C.T.)
| | - Shang-Shing P. Chou
- Department of Chemistry, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mail: (S.S.P.C.)
| | - Yuh-Chi Kuo
- Department of Life Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-C.K); (S.-H.C); (J.-Y.L.); (W.-F.T.)
| | - Shiu-Huey Chou
- Department of Life Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-C.K); (S.-H.C); (J.-Y.L.); (W.-F.T.)
| | - Jyh-Yih Leu
- Department of Life Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-C.K); (S.-H.C); (J.-Y.L.); (W.-F.T.)
| | - Woan-Fang Tzeng
- Department of Life Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-C.K); (S.-H.C); (J.-Y.L.); (W.-F.T.)
| | - Su-Jane Wang
- School of Medicine, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242,Taiwan; E-Mail: (S.-J.W.)
| | - Ming-Chi Tang
- Department of Nutritional Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-F.L.); (C.-T.H.); (M.-C.T.)
| | - Rwei-Fen Syu Huang
- Department of Nutritional Science, Fu-Jen University, 510 Chung-Cheng Rd., Hsinchuang, Taipei County 242, Taiwan; E-Mails: (Y.-F.L.); (C.-T.H.); (M.-C.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +88-622-905-3619; Fax: +88-622-902-1215
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Chou SH, Chou SSP, Liew YF, Leu JY, Wang SJ, Huang RFS, Tzeng WF, Kuo YC. A new synthetic compound, 2-OH, enhances interleukin-2 and interferon-gamma gene expression in human peripheral blood mononuclear cells. Molecules 2009; 14:2345-55. [PMID: 19633608 PMCID: PMC6255383 DOI: 10.3390/molecules14072345] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2009] [Revised: 06/17/2009] [Accepted: 06/29/2009] [Indexed: 11/25/2022] Open
Abstract
A new synthetic compound, 6-hydroxy-2-tosylisoquinolin-1(2H)-one (2-OH), was selected for immunopharmacological activity tests. The effects of 2-OH on human peripheral blood mononuclear cell (PBMC) proliferation were determined by tritiated thymidine uptake. Compared to phytohemagglutinin (PHA; 5 μg/mL) stimulation, 2-OH significantly enhanced PBMC proliferation in a dose-dependent manner. The 50% enhancement activity (EC50) for 2-OH was 4.4±0.1 μM. In addition, effects of 2-OH on interleukin-2 (IL-2) and interferon-γ (IFN-γ) production in PBMC were determined by enzyme immunoassay. Results demonstrated that 2-OH stimulated IL-2 and IFN-γ production in PBMC. Data from reverse transcription-polymerase chain reaction (RT-PCR) and real-time PCR indicated that IL-2 and IFN-γ mRNA expression in PBMC could be induced by 2-OH. Therefore, 2-OH enhanced IL-2 and IFN-γ production in PBMC by modulation their gene expression. We suggest that 2-OH may be an immunomodulatory agent.
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Affiliation(s)
- Shiu-Huey Chou
- Department of Life Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (S-H.C), (J-Y.L.), (W-F.T.)
| | - Shang-Shing P. Chou
- Department of Chemistry, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mail: (S-S.P.C.)
| | - Yih-Fong Liew
- Department of Nutritional Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (Y-F.L.), (R-F.H.)
| | - Jyh-Yih Leu
- Department of Life Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (S-H.C), (J-Y.L.), (W-F.T.)
| | - Su-Jane Wang
- School of Medicine, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mail: (S-J.W.)
| | - Rwei-Fen S. Huang
- Department of Nutritional Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (Y-F.L.), (R-F.H.)
| | - Woan-Fang Tzeng
- Department of Life Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (S-H.C), (J-Y.L.), (W-F.T.)
| | - Yuh-Chi Kuo
- Department of Life Science, Fu-Jen University, No. 510, Chung-Cheng Rd., Hsinchuang, Taipei Hsien 242, Taiwan; E-mails: (S-H.C), (J-Y.L.), (W-F.T.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +886-2-29053591; Fax: +886-2-29052193
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