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Canete JA, Andrés S, Muñoz S, Zamarreño J, Rodríguez S, Díaz-Cuervo H, Bueno A, Sacristán MP. Fission yeast Cdc14-like phosphatase Flp1/Clp1 modulates the transcriptional response to oxidative stress. Sci Rep 2023; 13:14677. [PMID: 37674027 PMCID: PMC10482896 DOI: 10.1038/s41598-023-41869-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 09/01/2023] [Indexed: 09/08/2023] Open
Abstract
Reactive oxygen species (ROS) are an important source of cellular damage. When ROS intracellular levels increase, oxidative stress takes place affecting DNA stability and metabolic functions. To prevent these effects, stress-activated protein kinases (SAPKs) delay cell cycle progression and induce a transcriptional response that activates antioxidant mechanisms ensuring cell adaptation and survival. Fission yeast Cdc14-like phosphatase Flp1 (also known as Clp1) has a well-established role in cell cycle regulation. Moreover, Flp1 contributes to checkpoint activation during replication stress. Here, we show that Flp1 has a role in fine-tuning the cellular oxidative stress response. Phosphorylation-dependent nucleolar release of Flp1 in response to oxidative stress conditions plays a role in the cellular transcriptional response. Thus, Flp1 ablation increases the transcriptional response to oxidative stress, in both intensity and duration, upregulating both Atf1/Pcr1- and Pap1-dependent stress induced genes. Remarkably, we found that Flp1 interacts with the Atf1/Pcr1 complex with Pcr1 acting as a direct substrate. Our results provide evidence that Flp1 modulates the oxidative stress response by limiting the Atf1/Pcr1-mediated transcription.
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Affiliation(s)
- Juan A Canete
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Sonia Andrés
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Sofía Muñoz
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Javier Zamarreño
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Sergio Rodríguez
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
| | - Helena Díaz-Cuervo
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain
- Axentiva Solutions SL, 08036, Barcelona, Spain
| | - Avelino Bueno
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
| | - María P Sacristán
- Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Universidad de Salamanca-CSIC, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
- Departamento de Microbiología y Genética, Universidad de Salamanca, Campus Miguel de Unamuno, 37007, Salamanca, Spain.
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Jabbarzadeh Kaboli P, Ismail P, Ling KH. Molecular modeling, dynamics simulations, and binding efficiency of berberine derivatives: A new group of RAF inhibitors for cancer treatment. PLoS One 2018; 13:e0193941. [PMID: 29565994 PMCID: PMC5863970 DOI: 10.1371/journal.pone.0193941] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 02/21/2018] [Indexed: 12/19/2022] Open
Abstract
RAF kinases are a family of enzymes in the MAP kinase pathway that contribute to the development of different types of cancer. BRAF is the most important member of RAF kinases. BRAF mutations have been detected in 7% of all cancers and 66% of melanomas; as such, the FDA has approved a few BRAF inhibitor drugs to date. However, BRAF can activate CRAF leading to resistance to BRAF inhibitors. Berberine (BBR) is an alkaloid that is widely distributed in different plant species. Several studies have been carried out on the anti-cancer effects of BBR but direct targets of BBR are unknown. In this study, interactions of BBR derivatives against BRAF and CRAF kinases were modeled and predicted using an in silico-based approach. To analyze and identify the residues important in BRAF docking, we modeled interactions of ATP, the universal substrate of BRAF, and found that Lys483 and Asp594 are the most important residues involved in both ATP and BBR binding [(The average score = -11.5 kcal/mol (ATP); Range of scores = -7.78 to -9.55 kcal/mol (BBR)]. In addition to these polar residues, Trp530 and Phe583 are also applicable to the molecular docking of BRAF. We also observed that Asp593 was excluded from the enzyme cavity, while Phe594 was included inside the cavity, making the enzyme inactive. Finally, three alternatives for BBR were identified with dual RAF inhibition effects [The best scores against BRAF = -11.62 kcal/mol (BBR-7), -10.64 kcal/mol (BBR-9), and -11.01 kcal/mol (BBR-10); the best scores against CRAF = -9.68 kcal/mol (BBR-7), -9.60 kcal/mol (BBR-9), and -9.20 kcal/mol (BBR-10)]. Direct effects of BBR derivatives against BRAF and CRAF kinases had not yet been reported previously, and, thus, for the first time, we report three cycloprotoberberines as lead compounds against RAF kinases.
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Affiliation(s)
- Parham Jabbarzadeh Kaboli
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Patimah Ismail
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- * E-mail:
| | - King-Hwa Ling
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Genetics and Regenerative Medicine Research Centre, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Kim N, Park J, Gadhe CG, Cho SJ, Oh Y, Kim D, Song K. A Protoberberine derivative HWY336 selectively inhibits MKK4 and MKK7 in mammalian cells: the importance of activation loop on selectivity. PLoS One 2014; 9:e91037. [PMID: 24759688 PMCID: PMC3997336 DOI: 10.1371/journal.pone.0091037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 02/09/2014] [Indexed: 12/01/2022] Open
Abstract
A protoberberine derivative library was used to search for selective inhibitors against kinases of the mitogen-activated protein kinase (MAPK) cascades in mammalian cells. Among kinases in mammalian MAPK pathways, we identified a compound (HWY336) that selectively inhibits kinase activity of mitogen-activated protein kinase kinase 4 and 7 (MKK4 and MKK7). The IC50 of HWY336 was 6 µM for MKK4 and 10 µM for MKK7 in vitro. HWY336 bound to both kinases reversibly via noncovalent interactions, and inhibited their activity by interfering with access of a protein substrate to its binding site. The binding affinity of HWY336 to MKK4 was measured by surface plasmon resonance to determine a dissociation constant (Kd) of 3.2 µM. When mammalian cells were treated with HWY336, MKK4 and MKK7 were selectively inhibited, resulting in inhibition of c-Jun NH2-terminal protein kinases in vivo. The structural model of HWY336 bound to either MKK4 or MKK7 predicted that HWY336 was docked to the activation loop, which is adjacent to the substrate binding site. This model suggested the importance of the activation loop of MKKs in HWY336 selectivity. We verified this model by mutating three critical residues within this loop of MKK4 to the corresponding residues in MKK3. The mutant MKK4 displayed similar kinase activity as wild-type kinase, but its activity was not inhibited by HWY336 compared to wild-type MKK4. We propose that the specific association of HWY336 to the activation loop of MKK4/MKK7 is responsible for its selective inhibition.
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Affiliation(s)
- Namil Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Jeongyeon Park
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Changdev G. Gadhe
- Department of Bio-New Drug Development, College of Medicine, Chosun University, Gwangju, Korea
| | - Seung Joo Cho
- Department of Bio-New Drug Development, College of Medicine, Chosun University, Gwangju, Korea
- Department of Cellular Molecular Medicine and Research Center for Resistant Cells, College of Medicine, Chosun University, Gwangju, Korea
| | - Youngjin Oh
- School of Electrical and Electronic Engineering, College of Engineering, Yonsei University, Seoul, Korea
| | - Donghyun Kim
- School of Electrical and Electronic Engineering, College of Engineering, Yonsei University, Seoul, Korea
| | - Kiwon Song
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
- * E-mail:
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Pingali S, Donahue JP, Payton-Stewart F. Weak C-H···X (X = O, N) hydrogen bonds in the crystal structure of dihydroberberine. Acta Crystallogr C Struct Chem 2014; 70:388-91. [PMID: 24705054 PMCID: PMC4165590 DOI: 10.1107/s2053229614003751] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Accepted: 02/18/2014] [Indexed: 12/19/2022] Open
Abstract
Dihydroberberine (systematic name: 9,10-dimethoxy-6,8-dihydro-5H-1,3-dioxolo[4,5-g]isoquinolino[3,2-a]isoquinoline), C20H19NO4, a reduced form of pharmacologically important berberine, crystallizes from ethanol without interstitial solvent. The molecule shows a dihedral angle of 27.94 (5)° between the two arene rings at the ends of the molecule, owing to the partial saturation of the inner quinolizine ring system. Although lacking classical O-H or N-H donors, the packing in the crystalline state is clearly governed by C-H···N and C-H···O hydrogen bonds involving the two acetal-type C-H bonds of the 1,3-dioxole ring. Each dihydroberberine molecule is engaged in four hydrogen bonds with neighbouring molecules, twice as donor and twice as acceptor, thus forming a two-dimensional sheet network that lies parallel to the (100) plane.
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Affiliation(s)
- Subramanya Pingali
- Department of Chemistry, Xavier University of Louisiana, 1 Drexel Drive, Box 114, New Orleans, LA 70125, USA
| | - James P. Donahue
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, LA 70118-5698, USA
| | - Florastina Payton-Stewart
- Department of Chemistry, Xavier University of Louisiana, 1 Drexel Drive, Box 114, New Orleans, LA 70125, USA
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Lee GE, Lee WG, Lee SY, Lee CR, Park CS, Chang S, Park SG, Song MR, Kim YC. Characterization of protoberberine analogs employed as novel human P2X7 receptor antagonists. Toxicol Appl Pharmacol 2011; 252:192-200. [DOI: 10.1016/j.taap.2011.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 12/23/2010] [Accepted: 02/07/2011] [Indexed: 01/09/2023]
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Xiao G, Gao S, Xie X, Xu M. Synthesis of the hydrophobic-hydrophilic macroporous poly divinylbenzene/poly(sodium acrylate) IPN resin and adsorption performance for berberine. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1392] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kim KY, Shin YK, Kang KC, Yoo JS, Kim JH, Paik YK. Proteomic profiling of yeast- and hyphal-specific responses of Candida albicans to the antifungal agent, HWY-289. Proteomics Clin Appl 2009; 3:452-61. [PMID: 21136971 DOI: 10.1002/prca.200800081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Virulence of Candida albicans is attributable to its unique dimorphic transition from nonpathogenic yeast cells to pathogenic hyphal cells. We previously discovered a novel antifungal agent, known as HWY-289. To characterize the mechanism underlying HWY-289 antifungal activity, we performed 2-DE to identify proteins that were differentially expressed during yeast-to-hyphal transition and in response to HWY-289. Twenty-four differentially expressed protein spots were identified in HWY-289-treated yeast. Most differentially expressed proteins were involved in carbohydrate-derived energy metabolism, cellular detoxification, and antioxidant defenses. Two proteins were involved in cell cycle regulation and DNA processing, and both were downregulated by HWY-289, suggesting that this agent might promote cell death by weakening cellular defense systems. HWY-289 inhibited yeast-to-hyphal transition in a dose-dependent manner. 2-DE analysis of hyphae uncovered several proteins that were induced during yeast-to-hyphal transition. Of these, aconitase and phosphatidylinositol transfer protein were downregulated by HWY-289, suggesting that they mediate the antifungal effects of HWY-289. Finally, RT-PCR analysis revealed that HWY-289 induced expression of three RAS-related genes (CcCST20, CaHST7, and CaCPH1) in yeast cells, but suppressed their expression in hyphae. Thus, the antifungal action of HWY-289 may be attributable to its ability to disrupt prohyphal RAS signaling.
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Affiliation(s)
- Ki-Young Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei Proteome Research Center and Biomedical Proteome Research Center, Yonsei University, Sudaemoon-ku, Seoul, Korea; Current address: Department of Biochemistry and Molecular Biology, Johns Hopkins University, 615 N. Wolfe Street, Room W8118, Baltimore, MD 21205, USA
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Chung YL, Hong RD, Wu HW, Hung WH, Lai LJ, Wang CM. Fluorescence enhancement for alkaloids by anions: Spectroscopic and electrochemical characterizations. J Electroanal Chem (Lausanne) 2007. [DOI: 10.1016/j.jelechem.2007.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kim JH, Campbell BC, Mahoney N, Chan KL, Molyneux RJ, May GS. Enhanced activity of strobilurin and fludioxonil by using berberine and phenolic compounds to target fungal antioxidative stress response. Lett Appl Microbiol 2007; 45:134-41. [PMID: 17651208 DOI: 10.1111/j.1472-765x.2007.02159.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
AIMS Identify natural products that effectively target antioxidative signal transduction/stress response systems [i.e., mitogen-activated protein kinase (MAPK) pathway, mitochondrial superoxide dismutase (Mn-SOD)] of fungi. Enhance activity of strobilurin or fludioxonil with discovered compounds. METHODS AND RESULTS Enhancement of antifungal activity of strobilurins, inhibitors of complex III of the mitochondrial respiratory chain, was tested using berberine hemisulfate and different phenolic compounds. The Saccharomyces cerevisiae sod2Delta, a deletion mutant lacking Mn-SOD gene, was highly sensitive to berberine and veratraldehyde. Functional complementation analysis verified these compounds target Mn-SOD. Activity of strobilurin (25-50 micromol l(-1)) was elevated on most aspergilli and Penicillium expansum by co-application with berberine or veratraldehyde (2-4 mmol l(-1)). These compounds also prevented Aspergillus fumigatus MAPK mutants (sakADelta and mpkCDelta) from escaping toxicity of fludioxonil (a phenylpyrrole fungicide potentiated by the MAPK pathway), a typical phenotype of fungal MAPK mutants. CONCLUSIONS Strobilurin activity or prevention of fungal escape from fludioxonil toxicity can be enhanced by co-application of certain alkaloids or phenolics. SIGNIFICANCE AND IMPACT OF THE STUDY Natural products can be used to target cellular stress response systems in fungal pathogens and serve as alternatives/additives to commercial antifungal agents.
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Affiliation(s)
- J H Kim
- Plant Mycotoxin Research Unit, Western Regional Research Center, USDA-ARS, Albany, CA 94710, USA
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Kim HJ, Park JE, Jin S, Kim JH, Song K. An isoquinolinium derivative selectively inhibits MAPK Spc1 of the stress-activated MAPK cascade of Schizosaccharomyces pombe. ACTA ACUST UNITED AC 2006; 13:881-9. [PMID: 16931337 DOI: 10.1016/j.chembiol.2006.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2005] [Revised: 05/30/2006] [Accepted: 06/09/2006] [Indexed: 11/17/2022]
Abstract
We have extended the search for selective inhibitors of the kinases of MAPK cascades by screening a derivative library of one of the isoquinoline rings of the protoberberine backbone. HWY 5069 inhibited the proliferation of wild-type and all mutants of Schizosaccharomyces pombe examined, except spc1Delta, at a minimal inhibitory concentration (MIC) of 3.76 microM. HWY 5069 also completely inhibited Spc1 kinase activity in vitro with an IC(50) of 16.4 microM as a competitive inhibitor of substrate binding. It was highly selective for Spc1 and did not affect the activity of other kinases in the MAPK cascades of fission yeast and mammals, including functional homologs of Spc1.
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Affiliation(s)
- Hyun-Jun Kim
- Department of Biochemistry and Institute of Life Science and Biotechnology, College of Science, Yonsei University, Seoul 120-749, Korea
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Abstract
This review covers beta-phenylethylamines and isoquinoline alkaloids derived from them, including further products of oxidation. condensation with formaldehyde and rearrangement, some of which do not contain an isoquinoline system, together with naphthylisoquinoline alkaloids, which have a different biogenetic origin. The occurrence of the alkaloids, with the structures of new bases, together with their reactions, syntheses and biological activities are reported. The literature from July 2002 to June 2003 is reviewed, with 568 references cited.
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Current awareness on yeast. Yeast 2002; 19:995-1002. [PMID: 12125056 DOI: 10.1002/yea.827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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