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Sheelam K, Chidara S, Vinnakota S, Sridhar G, Polothi R. Total synthesis of (3R, 4S)-4-hydroxylasiodiplodin. Nat Prod Res 2023; 37:1277-1283. [PMID: 34809512 DOI: 10.1080/14786419.2021.2003354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
An efficient stereoselective total synthesis of (3R, 4S)-4-hydroxylasiodiplodin has been accomplished starting from known starting materials. The key steps involved in this synthesis are Stille cross coupling, alkylation of 1,3-dithiane and Yamaguchi macrolactonization.
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Affiliation(s)
- Kalidasu Sheelam
- Department of Chemistry, JNT University, Hyderabad, Telangana, India
- GVK Biosciences Private Limited, Hyderabad, Telangana, India
| | - Sridhar Chidara
- GVK Biosciences Private Limited, Hyderabad, Telangana, India
| | - Srilalitha Vinnakota
- Department of Chemistry, Faculty of Science and Technology, ICFAI Foundation for Higher Education, Hyderabad, Telangana, India
| | - Gattu Sridhar
- Department of Chemistry, Kakatiya Institute of Technology and Science, Warangal, India
| | - Ravikumar Polothi
- Department of Chemistry, JNT University, Hyderabad, Telangana, India
- GVK Biosciences Private Limited, Hyderabad, Telangana, India
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2
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Weinschenk S, Weiss C, Benrath J, von Baehr V, Strowitzki T, Feißt M. Anti-Inflammatory Characteristics of Local Anesthetics: Inhibition of TNF-α Secretion of Lipopolysaccharide-Stimulated Leucocytes in Human Blood Samples. Int J Mol Sci 2022; 23:ijms23063283. [PMID: 35328706 PMCID: PMC8949497 DOI: 10.3390/ijms23063283] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
Background. Local anesthetics (LAs) have potent anti-inflammatory properties. Inflammatory down-regulation is crucial in diseases with overactive immune reactions, such as acute respiratory distress syndrome (ARDS) and chronic inflammation. We investigated the influence of four LAs, procaine, lidocaine, mepivacaine, and bupivacaine, on the reduction of tumor necrosis factor-alpha (TNF-α) secretion in lipopolysaccharide (LPS)-activated human leucocytes. Methods. Blood samples of 28 individuals were stimulated with LPS. The reduction of TNF-α production by each of the four LAs added (0.5 mg/mL) was measured and correlated with biometric variables. A response was defined as reduction to <85% of initial levels. Results. All four LAs down-regulated the TNF-α secretion in 44−61%: Bupivacaine (44.4%), lidocaine (61.5%), mepivacaine (44.4%), and procaine (50% of the individuals, “responders”). The TNF-α secretion was reduced to 67.4, 68.0, 63.6, and 67.1% of the initial values in responders. The effects in both patients and healthy persons were the same. Interindividual responses to LAs were not correlated with the duration or type of complaints, basal TNF-α serum level, sex, BMI, or age of responders. Conclusions. Four clinically relevant LAs (amid-LA and ester-LA) attenuate the inflammatory response provoked by LPS. They are potential candidates for drug repositioning in treating overactive immune reactions and chronic inflammation.
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Affiliation(s)
- Stefan Weinschenk
- Department of Gynecological Endocrinology and Fertility Disorders, Women’s Hospital, University of Heidelberg, D-69120 Heidelberg, Germany;
- Correspondence:
| | - Carsten Weiss
- Institute of Biological and Chemical Systems, Biological Information Processing, Karlsruhe Institute of Technology (KIT), Campus North, D-76133 Karlsruhe, Germany;
| | - Justus Benrath
- Pain Clinic, Mannheim University Hospital, Faculty of Heidelberg University, D-68167 Mannheim, Germany;
| | - Volker von Baehr
- Institute of Medical Diagnostics, Nicolaistraße 22, D-12247 Berlin, Germany;
| | - Thomas Strowitzki
- Department of Gynecological Endocrinology and Fertility Disorders, Women’s Hospital, University of Heidelberg, D-69120 Heidelberg, Germany;
| | - Manuel Feißt
- Institute of Medical Biometry (IMBI), Heidelberg University, Im Neuenheimer Feld 130.3, D-69120 Heidelberg, Germany;
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3
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Depa MR, Potla S, Narkhede UC, Jadhav VD, Sridhar G, Vidavalur S. Total synthesis of Neocosmosin A. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1952435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Manmohan Reddy Depa
- Chemistry Services GVK Biosciences, Pvt. Ltd, IDA, Hyderabad, India
- Department of Organic Chemistry, Food, Drugs and Water, Andhra University, Visakhapatnam, India
| | - Suneetha Potla
- Chemistry Services GVK Biosciences, Pvt. Ltd, IDA, Hyderabad, India
- Department of Organic Chemistry, Food, Drugs and Water, Andhra University, Visakhapatnam, India
| | | | - Vinod D. Jadhav
- Chemistry Services GVK Biosciences, Pvt. Ltd, IDA, Hyderabad, India
| | - Gattu Sridhar
- Department of Chemistry, Kakatiya Institute of Technology and Science, Warangal, India
| | - Siddaiah Vidavalur
- Department of Organic Chemistry, Food, Drugs and Water, Andhra University, Visakhapatnam, India
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4
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Bang S, Shim SH. Beta resorcylic acid lactones (RALs) from fungi: chemistry, biology, and biosynthesis. Arch Pharm Res 2020; 43:1093-1113. [PMID: 33113097 DOI: 10.1007/s12272-020-01275-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 10/21/2020] [Indexed: 11/29/2022]
Abstract
β-Resorcylic acid lactones (RALs) are one of the major polyketides produced by fungi, and some of them have a diverse array of biological activities. Most RALs feature a 14-membered macrocyclic ring fused to β-resorcylic acid (2,4-dihydroxybenzoic acid). In this review, more than 100 RAL-type of compounds are structurally classified into three groups; 14-membered RALs with 17R configuration, 14-membered RALs with 17S configuration, and benzopyranones/benzofuranones, and they are reviewed comprehensively in terms of chemistry, biological activities, and biosynthetic pathways.
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Affiliation(s)
- Sunghee Bang
- College of Pharmacy, Duksung Women's University, Seoul, 01369, Republic of Korea
| | - Sang Hee Shim
- College of Pharmacy, Duksung Women's University, Seoul, 01369, Republic of Korea.
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5
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Meyer AN, Gallo LH, Ko J, Cardenas G, Nelson KN, Siari A, Campos AR, Whisenant TC, Donoghue DJ. Oncogenic mutations in IKKβ function through global changes induced by K63-linked ubiquitination and result in autocrine stimulation. PLoS One 2018; 13:e0206014. [PMID: 30335863 PMCID: PMC6193727 DOI: 10.1371/journal.pone.0206014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/04/2018] [Indexed: 02/05/2023] Open
Abstract
Mutations at position K171 in the kinase activation loop of Inhibitor of κB kinase beta (IKKβ) occur in multiple myeloma, spleen marginal zone lymphoma and mantle cell lymphoma. Previously, we demonstrated that these result in constitutive kinase activation and stimulate Signal Transducer and Activator of Transcription 3 (STAT3). This work also identified K147 as a site of K63-linked regulatory ubiquitination required for activation of signaling pathways. We now present a more detailed analysis of ubiquitination sites together with a comprehensive examination of the signaling pathways activated by IKKβ K171E mutants. Downstream activation of STAT3 is dependent upon the activity of: UBE2N, the E2 ubiquitin ligase involved in K63-linked ubiquitination; TAK1 (MAP3K7), or TGFβ Activated Kinase, which forms a complex required for NFκB activation; JAK kinases, involved proximally in the phosphorylation of STAT transcription factors in response to inflammatory cytokines; and gp130, or IL-6 Receptor Subunit Beta which, upon binding IL-6 or other specific cytokines, undergoes homodimerization leading to activation of associated JAKs, resulting in STAT activation. We further demonstrate, using an IL-6-responsive cell line, that IKKβ K171E mutants stimulate the release of IL-6 activity into conditioned media. These results show that IKKβ K171E mutants trigger an autocrine loop in which IL-6 is secreted and binds to the IL-6 receptor complex gp130, resulting in JAK activation. Lastly, by examining the differential abundance of proteins associated with K63-only-ubiquitinated IKKβ K171E, proteomic analysis demonstrates the global activation of proliferative responses. As cancers harboring K171-mutated IKKβ are likely to also exhibit activated STAT3 and p44/42 MAPK (Erk1/2), this suggests the possibility of using MAPK (Erk1/2) and JAK inhibitors, or specific ubiquitination inhibitors. K63-linked ubiquitination occurs in other kinases at sites homologous to K147 in IKKβ, including K578 in BRAF V600E, which serves as an oncogenic driver in melanoma and other cancers.
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Affiliation(s)
- April N. Meyer
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Leandro H. Gallo
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Juyeon Ko
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Guillermo Cardenas
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Katelyn N. Nelson
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
| | - Asma Siari
- Université Joseph Fourier Grenoble, Grenoble, France
| | - Alexandre R. Campos
- Proteomics Facility, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, United States of America
| | - Thomas C. Whisenant
- Center for Computational Biology and Bioinformatics, University of California San Diego, La Jolla, California, United States of America
| | - Daniel J. Donoghue
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California, United States of America
- Moores Cancer Center, University of California San Diego, La Jolla, California, United States of America
- * E-mail:
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6
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Lai D, Mao Z, Xu D, Zhang X, Wang A, Xie R, Zhou L, Liu Y. Hyalodendriellins A–F, new 14-membered resorcylic acid lactones from the endophytic fungus Hyalodendriella sp. Ponipodef12. RSC Adv 2016. [DOI: 10.1039/c6ra24009g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Six new 14-membered resorcylic acid lactones (RALs), named hyalodendriellins A–F (1–6), were isolated from the culture of the endophytic fungus Hyalodendriella sp.
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Affiliation(s)
- Daowan Lai
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Ziling Mao
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Dan Xu
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Xuping Zhang
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Ali Wang
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Rushan Xie
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Ligang Zhou
- Key Laboratory of Plant Pathology
- Ministry of Agriculture/Department of Plant Pathology
- College of Plant Protection
- China Agricultural University
- Beijing 100193
| | - Yang Liu
- Institute of Food Science and Technology
- Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-products Processing
- Ministry of Agriculture
- Beijing 100193
- China
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7
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Kikuchi H, Hoshikawa T, Fujimura S, Sakata N, Kurata S, Katou Y, Oshima Y. Isolation of a Cyclic Depsipetide, Aspergillicin F, and Synthesis of Aspergillicins with Innate Immune-Modulating Activity. JOURNAL OF NATURAL PRODUCTS 2015; 78:1949-1956. [PMID: 26273902 DOI: 10.1021/acs.jnatprod.5b00286] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Innate immunity is the front line of self-defense against microbial infection. After searching for natural compounds that regulate innate immunity using an ex vivo Drosophila culture system, we identified a new cyclic depsipeptide, aspergillicin F, from the fungus Aspergillus sp., as an innate immune suppressor. The total synthesis and biological evaluation of the aspergillicin family, including aspergillicin F, were performed, revealing that slight structural differences in the side chains of amino acid residues alter innate immunity-regulating activity.
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Affiliation(s)
- Haruhisa Kikuchi
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
| | - Tsuyoshi Hoshikawa
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
| | - Shimpei Fujimura
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
| | - Noriaki Sakata
- Bioresource Laboratories, MicroBiopharm Japan Co., Ltd. (MBJ), 1808 Nakaizumi, Iwata, Shizuoka 438-0078, Japan
| | - Shoichiro Kurata
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
| | - Yasuhiro Katou
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
| | - Yoshiteru Oshima
- Graduate School of Pharmaceutical Sciences, Tohoku University , Aoba-yama, Aoba-ku, Sendai 980-8578, Japan
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8
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Shanbhag P, Bhave S, Vartak A, Kulkarni-Almeida A, Mahajan G, Villanueva I, Davies J. Screening of Microbial Extracts for Anticancer Compounds Using Streptomyces Kinase Inhibitor Assay. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000738] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Eukaryotic kinases are known to play an important role in signal transduction pathways by phosphorylating their respective substrates. Abnormal phosphorylations by these kinases have resulted in diseases. Hence inhibitors of kinases are of considerable pharmaceutical interest for a wide variety of disease targets, especially cancers. A number of reports have been published which indicate that eukaryotic-like kinases may complement two-component kinase systems in several bacteria. In Streptomyces sp. such kinases have been found to have a role in formation of aerial hyphae, spores, pigmentation & even in antibiotic production in some strains. Eukaryotic kinase inhibitors are seen to inhibit formation of aerial mycelia in Streptomyces without inhibiting vegetative mycelia. This property has been used to design an assay to screen for eukaryotic kinase inhibitors. The assay involves testing of compounds against Streptomyces 85E ATCC 55824 using agar well diffusion method. Inhibitors of kinases give rise to “bald” colonies where aerial mycelia and sporulation inhibition is seen. The assay has been standardized using known eukaryotic protein kinase inhibiting anticancer agents like AG-490, AG-1295, AG-1478, Flavopiridol and Imatinib as positive controls, at a concentration ranging from 10 μg/well to 100 μg/well. Anti-infective compounds which are not reported to inhibit eukaryotic protein kinases were used as negative controls. A number of microbial cultures have been screened for novel eukaryotic protein kinase inhibitors. Further these microbial extracts were tested in various cancer cell lines like Panc1, HCT116, Calu1, ACHN and H460 at a concentration of 10 μg/mL/ well. The anticancer data was seen correlating well with the Streptomyces kinase assay thus validating the assay.
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Affiliation(s)
- Prashant Shanbhag
- Piramal Enterprises Limited, 1-Nirlon Complex, Off Western Express Highway, Goregaon (East), Mumbai-400063, Maharashtra State, India
| | - Sarita Bhave
- Piramal Enterprises Limited, 1-Nirlon Complex, Off Western Express Highway, Goregaon (East), Mumbai-400063, Maharashtra State, India
| | - Ashwini Vartak
- Piramal Enterprises Limited, 1-Nirlon Complex, Off Western Express Highway, Goregaon (East), Mumbai-400063, Maharashtra State, India
| | - Asha Kulkarni-Almeida
- Piramal Enterprises Limited, 1-Nirlon Complex, Off Western Express Highway, Goregaon (East), Mumbai-400063, Maharashtra State, India
| | - Girish Mahajan
- Piramal Enterprises Limited, 1-Nirlon Complex, Off Western Express Highway, Goregaon (East), Mumbai-400063, Maharashtra State, India
| | - Ivan Villanueva
- Department of Microbiology and Immunology, Life Sciences Institute, 2350 Health Sciences Mall, University of British Columbia, Vancouver BC V6T 1Z3, Canada
| | - Julian Davies
- Department of Microbiology and Immunology, Life Sciences Institute, 2350 Health Sciences Mall, University of British Columbia, Vancouver BC V6T 1Z3, Canada
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9
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Shen W, Mao H, Huang Q, Dong J. Benzenediol lactones: a class of fungal metabolites with diverse structural features and biological activities. Eur J Med Chem 2015; 97:747-77. [DOI: 10.1016/j.ejmech.2014.11.067] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 11/04/2014] [Accepted: 11/26/2014] [Indexed: 12/12/2022]
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10
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Pera T, Atmaj C, van der Vegt M, Halayko AJ, Zaagsma J, Meurs H. Role for TAK1 in cigarette smoke-induced proinflammatory signaling and IL-8 release by human airway smooth muscle cells. Am J Physiol Lung Cell Mol Physiol 2012; 303:L272-8. [PMID: 22523282 DOI: 10.1152/ajplung.00291.2011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is an inflammatory disease, characterized by a progressive decline in lung function. Airway smooth muscle (ASM) mass may be increased in COPD, contributing to airflow limitation and proinflammatory cytokine production. Cigarette smoke (CS), the major risk factor of COPD, causes ASM cell proliferation, as well as interleukin-8 (IL-8)-induced neutrophilia. In various cell types, transforming growth factor-β-activated kinase 1 (TAK1) plays a crucial role in MAP kinase and NF-κB activation, as well as IL-8 release induced by IL-1β, TNF-α, and lipopolysaccharide. The role of TAK1 in CS-induced IL-8 release is not known. The aim of this study was to investigate the role of TAK1 in CS-induced NF-κB and MAP kinase signaling and IL-8 release by human ASM cells. Stimulation of these cells with CS extract (CSE) increased IL-8 release and ERK-1/2 phosphorylation, as well as Iκ-Bα degradation and p65 NF-κB subunit phosphorylation. CSE-induced ERK-1/2 phosphorylation and Iκ-Bα degradation were both inhibited by pretreatment with the specific TAK1 inhibitor LL-Z-1640-2 (5Z-7-oxozeaenol; 100 nM). Similarly, expression of dominant-negative TAK1 inhibited CSE-induced ERK-1/2 phosphorylation. In addition, inhibitors of TAK1 and the NF-κB (SC-514; 50 μM) and ERK-1/2 (U-0126; 3 μM) signaling inhibited the CSE-induced IL-8 release by ASM cells. These data indicate that TAK1 plays a major role in CSE-induced ERK-1/2 and NF-κB signaling and in IL-8 release by human ASM cells. Furthermore, they identify TAK1 as a novel target for the inhibition of CS-induced inflammatory responses involved in the development and progression of COPD.
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Affiliation(s)
- Tonio Pera
- Department of Molecular Pharmacology, University Centre for Pharmacy, University of Groningen, Groningen, The Netherlands
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11
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Singh A, Sweeney MF, Yu M, Burger A, Greninger P, Benes C, Haber DA, Settleman J. TAK1 inhibition promotes apoptosis in KRAS-dependent colon cancers. Cell 2012; 148:639-50. [PMID: 22341439 DOI: 10.1016/j.cell.2011.12.033] [Citation(s) in RCA: 228] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 10/28/2011] [Accepted: 12/29/2011] [Indexed: 10/28/2022]
Abstract
Colon cancers frequently harbor KRAS mutations, yet only a subset of KRAS mutant colon cancer cell lines are dependent upon KRAS signaling for survival. In a screen for kinases that promote survival of KRAS-dependent colon cancer cells, we found that the TAK1 kinase (MAP3K7) is required for tumor cell viability. The induction of apoptosis by RNAi-mediated depletion or pharmacologic inhibition of TAK1 is linked to its suppression of hyperactivated Wnt signaling, evident in both endogenous and genetically reconstituted cells. In APC mutant/KRAS-dependent cells, KRAS stimulates BMP-7 secretion and BMP signaling, leading to TAK1 activation and enhancement of Wnt-dependent transcription. An in vitro-derived "TAK1 dependency signature" is enriched in primary human colon cancers with mutations in both APC and KRAS, suggesting potential clinical utility in stratifying patient populations. Together, these findings identify TAK1 inhibition as a potential therapeutic strategy for a treatment-refractory subset of colon cancers exhibiting aberrant KRAS and Wnt pathway activation.
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Affiliation(s)
- Anurag Singh
- Massachusetts General Hospital Cancer Center and Harvard Medical School, Charlestown, MA 02129, USA
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12
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Pera T, Sami R, Zaagsma J, Meurs H. TAK1 plays a major role in growth factor-induced phenotypic modulation of airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2011; 301:L822-8. [PMID: 21873447 DOI: 10.1152/ajplung.00017.2011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Increased airway smooth muscle (ASM) mass is a major feature of airway remodeling in asthma and chronic obstructive pulmonary disease. Growth factors induce a proliferative ASM phenotype, characterized by an increased proliferative state and a decreased contractile protein expression, reducing contractility of the muscle. Transforming growth factor-β-activated kinase 1 (TAK1), a mitogen-activated protein kinase kinase kinase, is a key enzyme in proinflammatory signaling in various cell types; however, its function in ASM is unknown. The aim of this study was to investigate the role of TAK1 in growth factor-induced phenotypic modulation of ASM. Using bovine tracheal smooth muscle (BTSM) strips and cells, as well as human tracheal smooth muscle cells, we investigated the role of TAK1 in growth factor-induced proliferation and hypocontractility. Platelet-derived growth factor- (PDGF; 10 ng/ml) and fetal bovine serum (5%)-induced increases in DNA synthesis and cell number in bovine and human cells were significantly inhibited by pretreatment with the specific TAK1 inhibitor LL-Z-1640-2 (5Z-7-oxozeaenol; 100 nM). PDGF-induced DNA synthesis and extracellular signal-regulated kinase-1/2 phosphorylation in BTSM cells were strongly inhibited by both LL-Z-1640-2 pretreatment and transfection of dominant-negative TAK1. In addition, LL-Z-1640-2 inhibited PDGF-induced reduction of BTSM contractility and smooth muscle α-actin expression. The data indicate that TAK1 plays a major role in growth factor-induced phenotypic modulation of ASM.
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Affiliation(s)
- Tonio Pera
- Department of Molecular Pharmacology, University Centre for Pharmacy, University of Groningen, Groningen, The Netherlands
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13
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Al-Seeni M, El-Sawi N, Shaker S, Al-Amoudi A. Investigation of the Biochemical and Histological Changes Induced by Zearalenone Mycotoxin on Liver in Male Mice and the Protective Role of Crude Venom Extracted from Jellyfish <i>Cassiopea Andromeda</i>. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/fns.2011.24045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Leclair CA, Boxer MB, Thomas CJ, Maloney DJ. Total synthesis of LL-Z1640-2 utilizing a late-stage intramolecular Nozaki-Hiyama-Kishi reaction. Tetrahedron Lett 2010; 51:6852-6855. [PMID: 21516235 PMCID: PMC3079232 DOI: 10.1016/j.tetlet.2010.10.092] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A total synthesis of LL-Z1640-2 (2), a potent and selective kinase inhibitor, has been completed. The key step of the convergent synthesis utilized a late-stage intramolecular Nozaki-Hiyama-Kishi (NHK) reaction to close the macrocycle at the C6'-C7' bond.
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Affiliation(s)
- Christopher A Leclair
- NIH Chemical Genomics Center, National Human Genome Research Institute, National Institutes of Health, 9800 Medical Center Drive, Rockville, Maryland 20850, USA
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15
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Lee SW, Son HY, Yoon WK, Jung JY, Park BK, Cho ES, Park SJ, Kim TH, Ryu SY. Effect of Atrazine, Perfluorooctanoic Acid and Zearalenone on IFNγ, TNFα, and IL-5 mRNA Expression in Jurkat Cells. Biomol Ther (Seoul) 2010. [DOI: 10.4062/biomolther.2010.18.3.286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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16
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Cheneval D, Kastelic T, Fuerst P, Parker CN. A Review of Methods to Monitor the Modulation of mRNA Stability. ACTA ACUST UNITED AC 2010; 15:609-22. [DOI: 10.1177/1087057110365897] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Posttranscriptional regulation of gene expression is an elaborate and intricate process, constituting an important mechanism for the control of protein expression. During its existence, mRNA is escorted by proteins and other RNAs, which control the maturation, transportation, localization, translational efficiency, and ultimately its degradation. Without changes at the transcription level, mRNA steady-state levels can vary dramatically by just small changes in mRNA stability. By influencing the metabolism of specific mRNAs, the abundance of specific mRNAs can be controlled in organisms from bacteria to mammals. In eukaryotic cells, the control of mRNA stability is exerted through specific cis-acting elements (sequence-specific control elements) and trans-acting factors (mRNA binding proteins and some miRNAs). mRNA stability appears to be a key regulator in controlling the expression of many proteins. Dysregulation of mRNA stability has been associated with human diseases, including cancer, inflammatory disease, and Alzheimer’s. These observations suggest that modulating the stability of specific mRNAs may represent a viable strategy for pharmaceutical intervention. The literature already describes several compounds that influence mRNA stability. Measuring mRNA stability by conventional methods is labor intensive and time-consuming. However, several systems have been described that can be used to screen for modulators of mRNA levels in a high-throughput format. Thus, these assay systems offer a novel approach for screening targets that at present appear to be poorly “drugable.” This review describes the utility of mRNA stability as a novel approach to drug discovery, focusing on assay methods and tool compounds available to monitor mRNA stability. The authors describe mRNA stability assays and issues related to this approach.
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Affiliation(s)
| | | | - Peter Fuerst
- Novartis Pharma AG, Novartis Institute for BioMedical Research, Center for Proteomic Chemistry, Basel, Switzerland
| | - Christian N. Parker
- Novartis Pharma AG, Novartis Institute for BioMedical Research, Center for Proteomic Chemistry, Basel, Switzerland
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17
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Fukazawa H, Ikeda Y, Fukuyama M, Suzuki T, Hori H, Okuda T, Uehara Y. The Resorcylic Acid Lactone Hypothemycin Selectively Inhibits the Mitogen-Activated Protein Kinase Kinase-Extracellular Signal-Regulated Kinase Pathway in Cells. Biol Pharm Bull 2010; 33:168-73. [DOI: 10.1248/bpb.33.168] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Hidesuke Fukazawa
- Department of Bioactive Molecules, National Institute of Infectious Diseases
| | - Yoshimi Ikeda
- Department of Bioactive Molecules, National Institute of Infectious Diseases
- Division of Basic Biological Sciences, Faculty of Pharmacy, Keio University
| | - Mari Fukuyama
- Department of Bioactive Molecules, National Institute of Infectious Diseases
| | - Takeshi Suzuki
- Division of Basic Biological Sciences, Faculty of Pharmacy, Keio University
| | | | - Toru Okuda
- Mycology and Metabolic Diversity Research Center, Tamagawa University Research Institute
| | - Yoshimasa Uehara
- Department of Microbial Chemical Biology and Drug Discovery, Iwate Medical University School of Pharmacy
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18
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Du H, Matsushima T, Spyvee M, Goto M, Shirota H, Gusovsky F, Chiba K, Kotake M, Yoneda N, Eguchi Y, DiPietro L, Harmange JC, Gilbert S, Li XY, Davis H, Jiang Y, Zhang Z, Pelletier R, Wong N, Sakurai H, Yang H, Ito-Igarashi H, Kimura A, Kuboi Y, Mizui Y, Tanaka I, Ikemori-Kawada M, Kawakami Y, Inoue A, Kawai T, Kishi Y, Wang Y. Discovery of a potent, metabolically stabilized resorcylic lactone as an anti-inflammatory lead. Bioorg Med Chem Lett 2009; 19:6196-9. [PMID: 19783437 DOI: 10.1016/j.bmcl.2009.08.096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 08/26/2009] [Accepted: 08/31/2009] [Indexed: 10/20/2022]
Abstract
With bioactivity-guided phenotype screenings, a potent anti-inflammatory compound f152A1 has been isolated, characterized and identified as the known natural product LL-Z1640-2. Metabolic instability precluded its use for the study on animal disease models. Via total synthesis, a potent, metabolically stabilized analog ER-803064 has been created; addition of the (S)-Me group at C4 onto f152A1 has resulted in a dramatic improvement on its metabolic stability, while preserving the anti-inflammatory activities.
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Affiliation(s)
- H Du
- Eisai Research Institute of Boston, 4 Corporate Drive, Andover, MA 01810, USA
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19
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Goto M, Chow J, Muramoto K, Chiba KI, Yamamoto S, Fujita M, Obaishi H, Tai K, Mizui Y, Tanaka I, Young D, Yang H, Wang YJ, Shirota H, Gusovsky F. E6201 [(3S,4R,5Z,8S,9S,11E)-14-(Ethylamino)-8, 9,16-trihydroxy-3,4-dimethyl-3,4,9,19-tetrahydro-1H-2-benzoxacyclotetradecine-1,7(8H)-dione], a Novel Kinase Inhibitor of Mitogen-Activated Protein Kinase/Extracellular Signal-Regulated Kinase Kinase (MEK)-1 and MEK Kinase-1: In Vitro Characterization of Its Anti-Inflammatory and Antihyperproliferative Activities. J Pharmacol Exp Ther 2009; 331:485-95. [DOI: 10.1124/jpet.109.156554] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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20
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Thurm CW, Halsey JF. Measurement of cytokine production using whole blood. CURRENT PROTOCOLS IN IMMUNOLOGY 2008; Chapter 7:Unit 7.18B. [PMID: 18432956 DOI: 10.1002/0471142735.im0718bs66] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Whole blood (WB) ex vivo stimulation assays are useful for measuring cytokine responses due to the easy access of samples from healthy donors and patients and the minimal processing of the sample required. Because the assay mimics the natural environment, WB culture may be the best milieu in which to study cell activation and cytokine production in vitro. Whole blood stimulation has been used to investigate the cellular responsiveness to a variety of stimuli, including bacterial endotoxin (LPS), antigens, allergens, and antibiotics. Various clinical uses of whole blood stimulation assays have been suggested, including the assessment of autoimmune diseases, the monitoring of drug and vaccine efficacy, and immunotoxicity. Thus, whole blood cell culture may be useful in studying the biological effects of potential allergenic and/or antigenic substances or drugs on immune cell activation and cytokine secretion.
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Affiliation(s)
- Cary W Thurm
- IBT Reference Laboratory, ProGene Biomedical, Lenexa, Kansas, USA
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21
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Sekiya M, Ueda K, Fujita T, Kitayama M, Kikuchi H, Oshima Y, Kurata S. Establishment of ex vivo systems to identify compounds acting on innate immune responses and to determine their target molecules using transgenic Drosophila. Life Sci 2006; 80:113-9. [PMID: 16978662 DOI: 10.1016/j.lfs.2006.08.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2006] [Revised: 06/05/2006] [Accepted: 08/23/2006] [Indexed: 11/22/2022]
Abstract
Innate immunity is an evolutionarily conserved self-defense mechanism against microbial infections. In Drosophila, induction of antimicrobial peptides is a major immune response that is regulated by two distinct signaling pathways called the IMD pathway and the Toll pathway, similar to the tumor necrosis factor-alpha signaling and Toll-like receptor/interleukin-1 signaling pathways, respectively, in mammals. In mammals, innate immunity interacts with adaptive immunity and has a key role in the regulated immune response. Therefore, innate immunity is a pharmaceutical target for the development of immune regulators. Previously, based on the striking conservation between the mechanisms that regulate Drosophila immunity and human innate immunity, we established an ex vivo culture in which compounds acting on innate immunity can be evaluated using a reporter gene that reflects activation of the IMD pathway [Yajima et al. [Yajima, M., Takada, M., Takahashi, N., Kikuchi, H., Natori, S., Oshima, Y., Kurata, S., 2003. A newly established in vitro culture using transgenic Drosophila reveals functional coupling between the phospholipase A2-generated fatty acid cascade and lipopolysaccharide-dependent activation of the immune deficiency (imd) pathway in insect immunity. The Biochemical Journal 371(Pt 1), 205-210] Biochem J 371, 205-210]. Here, we combined the ex vivo culture with a reporter gene that reflects the heat shock response and demonstrated that the resulting systems are useful for screening compounds that act specifically on innate immunity, including mammalian innate immune responses. Identification of target molecules is essential for the development of more potent medicines with fewer side effects. In this study, we also established ex vivo systems capable of identifying target molecules of the identified compounds using targeted activation of the IMD pathway.
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Affiliation(s)
- Mizuki Sekiya
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578, Japan
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22
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Moulin E, Barluenga S, Totzke F, Winssinger N. Diversity-Oriented Synthesis of Pochonins and Biological Evaluation against a Panel of Kinases. Chemistry 2006; 12:8819-34. [PMID: 16953513 DOI: 10.1002/chem.200600553] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Pochonins A-F were recently characterized as six new members of the naturally occurring family of 14-membered resorcylic acid lactones. As there are a high number of ATPase and kinase inhibitors among natural resorcylic lactones, a library based on the pochonin scaffold, with five points of diversity, was prepared which includes diversity beyond that of the natural analogues. The library was synthesized by using solid-supported reagents amenable to automation. Testing the library for its inhibition against a panel of 24 kinases at 10 microM afforded a >14 % hit rate. These results demonstrate the potential of the resorcylides towards the inhibition of therapeutically relevant kinases.
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Affiliation(s)
- Emilie Moulin
- Organic and Bioorganic Chemistry Laboratory, Institut de Science et Ingénierie Supramoléculaires, Université Louis Pasteur-CNRS, 8 allée Gaspard Monge, 67000 Strasbourg, France
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23
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Ninomiya-Tsuji J, Kajino T, Ono K, Ohtomo T, Matsumoto M, Shiina M, Mihara M, Tsuchiya M, Matsumoto K. A resorcylic acid lactone, 5Z-7-oxozeaenol, prevents inflammation by inhibiting the catalytic activity of TAK1 MAPK kinase kinase. J Biol Chem 2003; 278:18485-90. [PMID: 12624112 DOI: 10.1074/jbc.m207453200] [Citation(s) in RCA: 346] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
TAK1, a member of the mitogen-activated kinase kinase kinase (MAPKKK) family, participates in proinflammatory cellular signaling pathways by activating JNK/p38 MAPKs and NF-kappaB. To identify drugs that prevent inflammation, we screened inhibitors of TAK1 catalytic activity. We identified a natural resorcylic lactone of fungal origin, 5Z-7-oxozeaenol, as a highly potent inhibitor of TAK1. This compound did not effectively inhibit the catalytic activities of the MEKK1 or ASK1 MAPKKKs, suggesting that 5Z-7-oxozeaenol is a selective inhibitor of TAK1. In cell culture, 5Z-7-oxozeaenol blocked interleukin-1-induced activation of TAK1, JNK/p38 MAPK, IkappaB kinases, and NF-kappaB, resulting in inhibition of cyclooxgenase-2 production. Furthermore, in vivo 5Z-7-oxozeaenol was able to inhibit picryl chloride-induced ear swelling. Thus, 5Z-7-oxozeaenol blocks proinflammatory signaling by selectively inhibiting TAK1 MAPKKK.
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Affiliation(s)
- Jun Ninomiya-Tsuji
- Department of Molecular Biology, Graduate School of Science, Nagoya University, and CREST, Japan Science and Technology Corporation, Chikusa-ku, Nagoya 464-8602, Japan
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