1
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Juette MF, Carelli JD, Rundlet EJ, Brown A, Shao S, Ferguson A, Wasserman MR, Holm M, Taunton J, Blanchard SC. Didemnin B and ternatin-4 differentially inhibit conformational changes in eEF1A required for aminoacyl-tRNA accommodation into mammalian ribosomes. eLife 2022; 11:e81608. [PMID: 36264623 PMCID: PMC9584604 DOI: 10.7554/elife.81608] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 10/03/2022] [Indexed: 12/11/2022] Open
Abstract
Rapid and accurate mRNA translation requires efficient codon-dependent delivery of the correct aminoacyl-tRNA (aa-tRNA) to the ribosomal A site. In mammals, this fidelity-determining reaction is facilitated by the GTPase elongation factor-1 alpha (eEF1A), which escorts aa-tRNA as an eEF1A(GTP)-aa-tRNA ternary complex into the ribosome. The structurally unrelated cyclic peptides didemnin B and ternatin-4 bind to the eEF1A(GTP)-aa-tRNA ternary complex and inhibit translation but have different effects on protein synthesis in vitro and in vivo. Here, we employ single-molecule fluorescence imaging and cryogenic electron microscopy to determine how these natural products inhibit translational elongation on mammalian ribosomes. By binding to a common site on eEF1A, didemnin B and ternatin-4 trap eEF1A in an intermediate state of aa-tRNA selection, preventing eEF1A release and aa-tRNA accommodation on the ribosome. We also show that didemnin B and ternatin-4 exhibit distinct effects on the dynamics of aa-tRNA selection that inform on observed disparities in their inhibition efficacies and physiological impacts. These integrated findings underscore the value of dynamics measurements in assessing the mechanism of small-molecule inhibition and highlight potential of single-molecule methods to reveal how distinct natural products differentially impact the human translation mechanism.
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Affiliation(s)
- Manuel F Juette
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
| | - Jordan D Carelli
- Chemistry and Chemical Biology Graduate Program, University of California, San FranciscoSan FranciscoUnited States
| | - Emily J Rundlet
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
- Department of Structural Biology, St. Jude Children's Research HospitalMemphisUnited States
- Tri-Institutional PhD Program in Chemical Biology, Weill Cornell MedicineNew YorkUnited States
| | - Alan Brown
- MRC-LMB, Francis Crick AvenueCambridgeUnited Kingdom
| | - Sichen Shao
- MRC-LMB, Francis Crick AvenueCambridgeUnited Kingdom
| | - Angelica Ferguson
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
| | - Michael R Wasserman
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
| | - Mikael Holm
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
- Department of Structural Biology, St. Jude Children's Research HospitalMemphisUnited States
| | - Jack Taunton
- Chemistry and Chemical Biology Graduate Program, University of California, San FranciscoSan FranciscoUnited States
| | - Scott C Blanchard
- Department of Physiology and Biophysics, Weill Cornell MedicineNew YorkUnited States
- Department of Structural Biology, St. Jude Children's Research HospitalMemphisUnited States
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Kittakoop P, Darshana D, Sangsuwan R, Mahidol C. Alkaloids and Alkaloid-Like Compounds are Potential Scaffolds of Antiviral Agents against SARS-CoV-2 (COVID-19) Virus. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-sr(r)3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Rai N, Kumari Keshri P, Verma A, Kamble SC, Mishra P, Barik S, Kumar Singh S, Gautam V. Plant associated fungal endophytes as a source of natural bioactive compounds. Mycology 2021; 12:139-159. [PMID: 34552808 PMCID: PMC8451683 DOI: 10.1080/21501203.2020.1870579] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Endophytes are a potent source of bioactive compounds that mimic plant-based metabolites. The relationship of host plant and endophyte is significantly associated with alteration in fungal colonisation and the extraction of endophyte-derived bioactive compounds. Screening of fungal endophytes and their relationship with host plants is essential for the isolation of bioactive compounds. Numerous bioactive compounds with antioxidant, antimicrobial, anticancer, and immunomodulatory properties are known to be derived from fungal endophytes. Bioinformatics tools along with the latest techniques such as metabolomics, next-generation sequencing, and metagenomics multilocus sequence typing can potentially fill the gaps in fungal endophyte research. The current review article focuses on bioactive compounds derived from plant-associated fungal endophytes and their pharmacological importance. We conclude with the challenges and opportunities in the research area of fungal endophytes.
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Affiliation(s)
- Nilesh Rai
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Priyanka Kumari Keshri
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ashish Verma
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Swapnil C Kamble
- Department of Technology, Savitribai Phule Pune University, Ganeshkhind, Pune, India
| | - Pradeep Mishra
- Division of Biochemistry, Department of Medical Biochemistry and Biophysics, Karolinska Institute, Stockholm, Sweden
| | - Suvakanta Barik
- Chemical Engineering Discipline, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar, Gujarat, India
| | - Santosh Kumar Singh
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Vibhav Gautam
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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4
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Exploring peptide studies related to SARS-CoV to accelerate the development of novel therapeutic and prophylactic solutions against COVID-19. J Infect Public Health 2021; 14:1106-1119. [PMID: 34280732 PMCID: PMC8253661 DOI: 10.1016/j.jiph.2021.06.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 06/18/2021] [Accepted: 06/27/2021] [Indexed: 01/18/2023] Open
Abstract
Recent advances in peptide research revolutionized therapeutic discoveries for various infectious diseases. In view of the ongoing threat of the COVID-19 pandemic, there is an urgent need to develop potential therapeutic options. Intense and accomplishing research is being carried out to develop broad-spectrum vaccines and treatment options for corona viruses, due to the risk of recurrent infection by the existing strains or pandemic outbreaks by new mutant strains. Developing a novel medicine is costly and time consuming, which increases the value of repurposing existing therapies. Since, SARS-CoV-2 shares significant genomic homology with SARS-CoV, we have summarized various peptides identified against SARS-CoV using in silico and molecular studies and also the peptides effective against SARS-CoV-2. Dissecting the molecular mechanisms underlying viral infection could yield fundamental insights in the discovery of new antiviral agents, targeting viral proteins or host factors. We postulate that these peptides can serve as effective components for therapeutic options against SARS-CoV-2, supporting clinical scientists globally in selectively identifying and testing the therapeutic and prophylactic agents for COVID-19 treatment. In addition, we also summarized the latest updates on peptide therapeutics against SARS-CoV-2.
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5
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White KM, Rosales R, Yildiz S, Kehrer T, Miorin L, Moreno E, Jangra S, Uccellini MB, Rathnasinghe R, Coughlan L, Martinez-Romero C, Batra J, Rojc A, Bouhaddou M, Fabius JM, Obernier K, Dejosez M, Guillén MJ, Losada A, Avilés P, Schotsaert M, Zwaka T, Vignuzzi M, Shokat KM, Krogan NJ, García-Sastre A. Plitidepsin has potent preclinical efficacy against SARS-CoV-2 by targeting the host protein eEF1A. Science 2021; 371:926-931. [PMID: 33495306 PMCID: PMC7963220 DOI: 10.1126/science.abf4058] [Citation(s) in RCA: 210] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 01/20/2021] [Indexed: 12/15/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral proteins interact with the eukaryotic translation machinery, and inhibitors of translation have potent antiviral effects. We found that the drug plitidepsin (aplidin), which has limited clinical approval, possesses antiviral activity (90% inhibitory concentration = 0.88 nM) that is more potent than remdesivir against SARS-CoV-2 in vitro by a factor of 27.5, with limited toxicity in cell culture. Through the use of a drug-resistant mutant, we show that the antiviral activity of plitidepsin against SARS-CoV-2 is mediated through inhibition of the known target eEF1A (eukaryotic translation elongation factor 1A). We demonstrate the in vivo efficacy of plitidepsin treatment in two mouse models of SARS-CoV-2 infection with a reduction of viral replication in the lungs by two orders of magnitude using prophylactic treatment. Our results indicate that plitidepsin is a promising therapeutic candidate for COVID-19.
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Affiliation(s)
- Kris M White
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Romel Rosales
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Soner Yildiz
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Thomas Kehrer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lisa Miorin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elena Moreno
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sonia Jangra
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Melissa B Uccellini
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Raveen Rathnasinghe
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Lynda Coughlan
- Department of Microbiology and Immunology and Center for Vaccine Development and Global Health (CVD), University of Maryland School of Medicine, Baltimore, MD, USA
| | - Carles Martinez-Romero
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Jyoti Batra
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- J. David Gladstone Institutes, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Ajda Rojc
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- J. David Gladstone Institutes, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Mehdi Bouhaddou
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- J. David Gladstone Institutes, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Jacqueline M Fabius
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
| | - Kirsten Obernier
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- J. David Gladstone Institutes, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Marion Dejosez
- Huffington Foundation Center for Cell-Based Research in Parkinson's Disease, Department of Cell, Developmental, and Regenerative Biology, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - María José Guillén
- Research and Development Department, PharmaMar, 28770 Colmenar Viejo, Madrid, Spain
| | - Alejandro Losada
- Research and Development Department, PharmaMar, 28770 Colmenar Viejo, Madrid, Spain
| | - Pablo Avilés
- Research and Development Department, PharmaMar, 28770 Colmenar Viejo, Madrid, Spain
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Thomas Zwaka
- Huffington Foundation Center for Cell-Based Research in Parkinson's Disease, Department of Cell, Developmental, and Regenerative Biology, Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marco Vignuzzi
- Viral Populations and Pathogenesis Unit, CNRS UMR 3569, Institut Pasteur, 75724 Paris Cedex 15, France
| | - Kevan M Shokat
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
- Howard Hughes Medical Institute, University of California, San Francisco, CA 94143, USA
| | - Nevan J Krogan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Quantitative Biosciences Institute (QBI), University of California, San Francisco, CA 94158, USA
- J. David Gladstone Institutes, San Francisco, CA 94158, USA
- QBI Coronavirus Research Group (QCRG), San Francisco, CA 94158, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA 94158, USA
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Global Health Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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6
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Ishibashi K, Takeda Y, Nakatani E, Sugawara K, Imai R, Sekiguchi M, Takahama R, Ohkura N, Atsumi GI. Activation of PPARγ at an Early Stage of Differentiation Enhances Adipocyte Differentiation of MEFs Derived from Type II Diabetic TSOD Mice and Alters Lipid Droplet Morphology. Biol Pharm Bull 2017; 40:852-859. [DOI: 10.1248/bpb.b17-00030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Kenichi Ishibashi
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Yoshihiro Takeda
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Eriko Nakatani
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Kana Sugawara
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Ryo Imai
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Mayu Sekiguchi
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Risa Takahama
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Naoki Ohkura
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
| | - Gen-ichi Atsumi
- Department of Molecular Physiology and Pathology, School of Pharma-Sciences, Teikyo University
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7
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Kang MC, Kang N, Ko SC, Kim YB, Jeon YJ. Anti-obesity effects of seaweeds of Jeju Island on the differentiation of 3T3-L1 preadipocytes and obese mice fed a high-fat diet. Food Chem Toxicol 2016; 90:36-44. [PMID: 26845612 DOI: 10.1016/j.fct.2016.01.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 01/19/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
Abstract
The seaweeds were collected from the coast of Jeju Island, South Korea. We investigated ethanol extracts from seaweed as potential antiobesity agents by testing their effect on adipogenic differentiation in 3T3-L1 cells. Among the red algae extracts tested, the Plocamium telfairiae extract (PTE) showed the highest inhibitory effect on lipogenesis in adipocytes and, thus, was selected as a potential antiobesity agent. PTE treatment significantly decreased the expression of the adipogenic-specific proteins peroxisome proliferator-activated receptor-γ, CCAAT/enhancer-binding protein-α, sterol regulatory element-binding protein 1, and fatty acid-binding protein 4 compared with that in the untreated 3T3-L1 cells. PTE also inhibited high-fat diet (HFD)-induced obesity in male C57BL/6 mice. Oral administration of PTE significantly reduced the body weight, fatty liver, amount of white adipose tissue, and levels of triglyceride and glucose in the tested animals. Taken together, these data demonstrate that PTE can be developed as a therapeutic agent for obesity.
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Affiliation(s)
- Min-Cheol Kang
- Department of Marine Life Sciences, Jeju National University, Jeju, 690-756, Republic of Korea; Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Nalae Kang
- Department of Marine Life Sciences, Jeju National University, Jeju, 690-756, Republic of Korea
| | - Seok-Chun Ko
- Department of Marine Life Sciences, Jeju National University, Jeju, 690-756, Republic of Korea
| | - Young-Bum Kim
- Division of Endocrinology, Diabetes and Metabolism, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju, 690-756, Republic of Korea.
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8
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Balaji M, Ganjayi MS, Hanuma Kumar GEN, Parim BN, Mopuri R, Dasari S. A review on possible therapeutic targets to contain obesity: The role of phytochemicals. Obes Res Clin Pract 2015; 10:363-80. [PMID: 26740473 DOI: 10.1016/j.orcp.2015.12.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 11/26/2015] [Accepted: 12/08/2015] [Indexed: 12/15/2022]
Abstract
The prevalence and severity of obesity has increased markedly in recent decades making it a global public health concern. Since obesity is a potential risk factor in the development of hypertension, type-2 diabetes, cardiovascular diseases, infertility, etc., it is no more viewed as a cosmetic issue. Currently, only a few FDA-approved anti-obesity drugs like Orlistat, Lorcaserin and Phentermine-topiramate are available in the market, but they have considerable side effects. On the other hand, bariatric surgery as an alternative is associated with high risk and expensive. In view of these there is a growing trend towards natural product-based drug intervention as one of the crucial strategies for management of obesity and related ailments. In Asian traditional medicine and Ayurvedic literature a good number of plant species have been used and quoted for possible lipid-lowering and anti-obesity effects; however, many of them have not been evaluated rigorously for a definite recommendation and also lack adequate scientific validation. This review explores and updates on various plant species, their used parts, bioactive components and focuses multiple targets/pathways to contain obesity which may pave the way to develop novel and effective drugs. We also summarised different drugs in use to treat obesity and their current status. Nature is future promise of our wellbeing.
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Affiliation(s)
- Meriga Balaji
- Animal Physiology & Biochemistry Laboratory, Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India.
| | - Muni Swamy Ganjayi
- Animal Physiology & Biochemistry Laboratory, Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Gali E N Hanuma Kumar
- Animal Physiology & Biochemistry Laboratory, Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Brahma Naidu Parim
- Animal Physiology & Biochemistry Laboratory, Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Ramgopal Mopuri
- Department of Biochemistry, School of Life Science, University of KwaZulu Natal, Durban 4000, South Africa
| | - Sreenivasulu Dasari
- Animal Physiology & Biochemistry Laboratory, Department of Biochemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
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9
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Yuki K, Ikeda M, Yoshida S, Ohno O, Suenaga K, Yamada K, Uemura D, Miyamoto K. Isolation of Monovalerianester A, an Inhibitor of Fat Accumulation, from Valeriana Fauriei. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501000801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The rhizomes and roots of Valeriana fauriei were extracted with 80% aqueous ethanol. This extract was found to exhibit potent inhibitory effects on fat accumulation in 3T3-L1 murine adipocytes. After several steps of chromatographic purification, we succeeded in identifying monovalerianester A as an inhibitor of fat accumulation. Thus, monovalerianester A and the crude extract of the rhizomes and roots of V. fauriei may have therapeutic potential for the treatment of obesity.
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Affiliation(s)
- Keiji Yuki
- Department of Biosciences and Informatics, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
| | - Mariko Ikeda
- Department of Biosciences and Informatics, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
| | - Shosuke Yoshida
- Department of Biosciences and Informatics, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
| | - Osamu Ohno
- Department of Chemistry, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
| | - Kiyotake Suenaga
- Department of Chemistry, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
| | - Kaoru Yamada
- Department of Chemistry, Kanagawa University, 2946 Tsuchiya, Hiratsuka, 256–1293, Japan
| | - Daisuke Uemura
- Department of Chemistry, Kanagawa University, 2946 Tsuchiya, Hiratsuka, 256–1293, Japan
| | - Kenji Miyamoto
- Department of Biosciences and Informatics, Keio University, 3–14–1 Hiyoshi, Yokohama, 223–8522, Japan
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Inuzuka T, Yamamoto K, Iwasaki A, Ohno O, Suenaga K, Kawazoe Y, Uemura D. An inhibitor of the adipogenic differentiation of 3T3-L1 cells, yoshinone A, and its analogs, isolated from the marine cyanobacterium Leptolyngbya sp. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Kobayashi M, Kawashima H, Takemori K, Ito H, Murai A, Masuda S, Yamada K, Uemura D, Horio F. Ternatin, a cyclic peptide isolated from mushroom, and its derivative suppress hyperglycemia and hepatic fatty acid synthesis in spontaneously diabetic KK-A(y) mice. Biochem Biophys Res Commun 2012; 427:299-304. [PMID: 23000156 DOI: 10.1016/j.bbrc.2012.09.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Accepted: 09/08/2012] [Indexed: 12/28/2022]
Abstract
(-)-Ternatin is a highly methylated cyclic heptapeptide isolated from mushroom Coriolus versicolor. Ternatin has an inhibitory effect on fat accumulation in 3T3-L1 adipocytes. [D-Leu(7)]ternatin, a ternatin derivative, also inhibited fat accumulation in 3T3-L1 cells, although the effectiveness of [D-Leu(7)]ternatin was lower than that of ternatin. In this study, we investigated the effects of ternatin and [D-Leu(7)]ternatin on obesity and type 2 diabetes in KK-A(y) mice, an animal model for spontaneously developed type 2 diabetes. We continuously administered ternatin (8.5 or 17 nmol/day) or [D-Leu(7)]ternatin (68 nmol/day) to mice via a subcutaneous osmotic pump. Unexpectedly, neither ternatin nor [D-Leu(7)]ternatin affected body weight or adipose tissue weight in KK-A(y) mice. In contrast, it was demonstrated that both ternatin and [D-Leu(7)]ternatin suppress the development of hyperglycemia. In liver, the SREBP-1c mRNA level tended to be lower or significantly decreased in mice treated with ternatin or [D-Leu(7)]ternatin, respectively. Moreover, we found that ternatin directly lowered the SREBP-1c mRNA level in Hepa1-6 hepatocyte cells. This study showed that ternatin and [D-Leu(7)]ternatin each had a preventive effect on hyperglycemia and a suppressive effect on fatty acid synthesis in KK-A(y) mice.
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Affiliation(s)
- Misato Kobayashi
- Department of Applied Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
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Park H, Abanto OD, Ghosh C, Hwang S, Park D, Kim I. Red yeast rice‐garlic inhibits the markers of differentiation in 3T3‐L1 preadipocytes. EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201100253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Hye‐Jin Park
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - Oliver D. Abanto
- Animal and Dairy Sciences Cluster, University of the Philippines Los Baños, College, Laguna, Philippines
| | - Chiranjit Ghosh
- Division of Animal Life and Environmental Science, Hankyong National University, Gyeonggi‐do, Republic of Korea
| | - Seong‐Gu Hwang
- Division of Animal Life and Environmental Science, Hankyong National University, Gyeonggi‐do, Republic of Korea
| | - Dong‐Ki Park
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
| | - In‐Sook Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, Republic of Korea
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Ghosh C, Chung HY, Nandre RM, Lee JH, Jeon TI, Kim IS, Yang SH, Hwang SG. An active extract of Ulmus pumila inhibits adipogenesis through regulation of cell cycle progression in 3T3-L1 cells. Food Chem Toxicol 2012; 50:2009-15. [PMID: 22445738 DOI: 10.1016/j.fct.2012.03.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 03/07/2012] [Accepted: 03/14/2012] [Indexed: 01/25/2023]
Abstract
Obesity and its associated metabolic disorders has become a major obstacle in improving the average life span. In this regard therapeutic approach using natural compounds are currently receiving much attention. Herbal compounds rich in triterpenes are well known to regulate glucose and lipid metabolism. Here, we have found that Ulmus pumila (UP) contained at least four different triterpenoids and inhibited adipogenesis of 3T3-L1 cells. The cell viability was dose dependently decreased by UP showing the increase of cell accumulation in G1 phase while reducing in S and G2/M phase of cell cycle. UP treatment also significantly decreased the GPDH activity and intracellular lipid accumulation. In addition, UP inhibited the mRNA levels of adipogenic transcription factors and lipogenic genes such as PPARγ, C/EBPα, SREBP1c and FAS while showing no effects on C/EBP-β and C/EBP-δ. Importantly enough, treatment of cells with UP suppressed the TNF-α induced activation of NF-κB signaling. Collectively, our results indicate that UP extract effectively attenuated adipogenesis by controlling cell cycle progression and down regulating adipogenic gene expression.
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Affiliation(s)
- Chiranjit Ghosh
- Department of Animal Life and Environmental Science, Hankyong National University, Gyeonggi-do 456-749, Republic of Korea
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Isolation of 9-Hydroxy-10 E,12 Z-octadecadienoic Acid, an Inhibitor of Fat Accumulation from Valeriana fauriei. Biosci Biotechnol Biochem 2012; 76:1233-5. [DOI: 10.1271/bbb.110994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Silk protein hydrolysate increases glucose uptake through up-regulation of GLUT 4 and reduces the expression of leptin in 3T3-L1 fibroblast. Nutr Res 2011; 31:937-43. [DOI: 10.1016/j.nutres.2011.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 09/15/2011] [Accepted: 09/19/2011] [Indexed: 11/20/2022]
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Current world literature. Curr Opin Endocrinol Diabetes Obes 2010; 17:177-85. [PMID: 20190584 DOI: 10.1097/med.0b013e3283382286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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