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Zhao X, Ma Y, Luo J, Xu K, Tian P, Lu C, Song J. Blocking the WNT/β-catenin pathway in cancer treatment:pharmacological targets and drug therapeutic potential. Heliyon 2024; 10:e35989. [PMID: 39253139 PMCID: PMC11381626 DOI: 10.1016/j.heliyon.2024.e35989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 08/03/2024] [Accepted: 08/07/2024] [Indexed: 09/11/2024] Open
Abstract
The WNT/β-catenin signaling pathway plays crucial roles in tumorigenesis and relapse, metastasis, drug resistance, and tumor stemness maintenance. In most tumors, the WNT/β-catenin signaling pathway is often aberrantly activated. The therapeutic usefulness of inhibition of WNT/β-catenin signaling has been reported to improve the efficiency of different cancer treatments and this inhibition of signaling has been carried out using different methods including pharmacological agents, short interfering RNA (siRNA), and antibodies. Here, we review the WNT-inhibitory effects of some FDA-approved drugs and natural products in cancer treatment and focus on recent progress of the WNT signaling inhibitors in improving the efficiency of chemotherapy, immunotherapy, gene therapy, and physical therapy. We also classified these FDA-approved drugs and natural products according to their structure and physicochemical properties, and introduced briefly their potential mechanisms of inhibiting the WNT signaling pathway. The review provides a comprehensive understanding of inhibitors of WNT/β-catenin pathway in various cancer therapeutics. This will benefit novel WNT inhibitor development and optimal clinical use of WNT signaling-related drugs in synergistic cancer therapy.
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Affiliation(s)
- Xi Zhao
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
- China Medical College of Guangxi University, Guangxi University, Nanning, 530004, China
| | - Yunong Ma
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
- China Medical College of Guangxi University, Guangxi University, Nanning, 530004, China
| | - Jiayang Luo
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
| | - Kexin Xu
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
| | - Peilin Tian
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
| | - Cuixia Lu
- Medical Scientific Research Center, Life Sciences Institute, Guangxi Medical University, Nanning, 530021, China
| | - Jiaxing Song
- China Medical College of Guangxi University, Guangxi University, Nanning, 530004, China
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2
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Bhat AM, Hussain A, Hassan QP, Bhat A. Culturable Streptomyces spp. from high-altitude, oligotrophic North Western Himalaya: a comprehensive study on the diversity, bioactivity and insights into the proteome of potential species. FEMS Microbiol Ecol 2024; 100:fiae026. [PMID: 38439700 PMCID: PMC10950047 DOI: 10.1093/femsec/fiae026] [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: 03/07/2023] [Revised: 11/27/2023] [Accepted: 03/02/2024] [Indexed: 03/06/2024] Open
Abstract
The increasing global concern of antimicrobial resistance and shortage of new antimicrobials necessitates exploring untapped terrestrial environments for new bioactive microbiome diversity. The low-temperature and oligotrophic North Western Himalaya (NWH) region has a vast diversity of Streptomyces with potential antimicrobial properties that remain largely unexplored. This study evaluates the diversity of culturable Streptomyces from high-altitude NWH and their potential as a source of new antimicrobials through genus-specific isolation and identification. The results demonstrate a distinct phylogenetic clustering of Streptomyces from different sampling regions of NWH, site-specific variation in culturable β-diversity and species commonness with varying intersite bioactivity among different sites. Further, the study optimized the media selection for large-scale culture cultivation in antibiotic production processes and demonstrated the antimicrobial efficacy of Streptomyces against a range of pathogens through in vitro bioassays using minimum inhibitory concentration determination and antibiofilm activity. Untargeted label-free proteomic profiling also revealed variable expression of stress-response proteins and antibiotic regulators as a competitive survival strategy for selective antagonistic Streptomyces. The findings highlight the potential of NWH in augmenting antimicrobial discovery and combating antimicrobial resistance through the isolation and study of novel bioactive Streptomyces.
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Affiliation(s)
- Aasif Majeed Bhat
- Plant Molecular Biology and Biotechnology Division, CSIR-Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, Jammu & Kashmir-190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh-201002, India
| | - Aehtesham Hussain
- NCMR-National Centre for Cell Science (NCCS), Pune-411007, Maharashtra, India
| | - Qazi Parvaiz Hassan
- Plant Molecular Biology and Biotechnology Division, CSIR-Indian Institute of Integrative Medicine (IIIM), Sanatnagar, Srinagar, Jammu & Kashmir-190005, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh-201002, India
| | - Adil Bhat
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
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Maglangit F, Kyeremeh K, Deng H. Deletion of the accramycin pathway-specific regulatory gene accJ activates the production of unrelated polyketide metabolites. Nat Prod Res 2023; 37:2753-2758. [PMID: 36125461 DOI: 10.1080/14786419.2022.2126466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 09/08/2022] [Accepted: 09/11/2022] [Indexed: 10/14/2022]
Abstract
The manipulation of regulatory genes has been employed to awaken cryptic metabolites in Streptomyces. Of particular interest in recent years is the effect of disruption of a pathway-specific gene to other biosynthetic pathways. Herein, we report the inactivation of the accramycin pathway-specific regulatory gene, accJ in Streptomyces sp. MA37 resulted in the production of unrelated polyketide metabolites. Through detailed mass spectrometric and spectroscopic analyses, and comparison with literature data, their structures were deduced as 3-methoxy-2-methyl-4H-pyran-4-one (1), zanthopyranone (2), propioveratrone (3), and TW94a (4). To the best of our knowledge, this is the first report of the isolation of 1-3 from bacteria. Compounds 1, 2, and 4 showed weak to moderate activity against Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium. Propioveratrone (3) displayed better inhibitory activity (MIC = 6.3 μg/mL) than ampicillin against multi-drug resistant E. faecium K60-39 clinical isolate (MIC = 25 μg/mL), suggesting a promising structural template for the drug development targeting Enterococcus isolates.
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Affiliation(s)
- Fleurdeliz Maglangit
- Department of Biology and Environmental Science, College of Science, University of the Philippines Cebu, Lahug, Cebu City, Philippines
| | - Kwaku Kyeremeh
- Department of Chemistry, University of Ghana, Legon-Accra, Ghana
| | - Hai Deng
- Department of Chemistry, University of Aberdeen, Aberdeen, Scotland, UK
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4
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Cuozzo S, de Moreno de LeBlanc A, LeBlanc J, Hoffmann N, Tortella G. Streptomyces genus as a source of probiotics and its potential for its use in health. Microbiol Res 2023; 266:127248. [DOI: 10.1016/j.micres.2022.127248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 08/10/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
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Purification and Characterization of Bioactive Metabolite from Streptomyces monomycini RVE129 Derived from the Rift Valley Soil of Hawassa, Ethiopia. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7141313. [PMID: 36582599 PMCID: PMC9794429 DOI: 10.1155/2022/7141313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 11/10/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022]
Abstract
Streptomyces species have produced a variety of bioactive secondary metabolites with intriguing antimicrobial and anticancer properties. In this study, the bioactive compound obtained from the potent strain RVE129 was purified and characterized. Its bioactivity against various pathogens and its cytotoxicity toward the human cervical cancer (HeLa) cell were also examined. The strain was previously isolated from unexplored areas of the rift valley soil of Hawassa (Ethiopia) and identified by phenotypic characteristics and complete sequencing of the 16S rRNA gene and found to be closely related to Streptomyces monomycini strain NRRL B-24309 (99.65%); accession no. (ON786620). The active fraction undergoes bioassay-guided purification using the TLC method after being extracted by ethyl acetate. Then, it was subjected to physicochemical and structural characteristics using UV-Vis, FTIR, and NMR spectroscopic methods. A minimum inhibitory concentration of the purified antibiotic was achieved by the broth microdilution method. The cytotoxicity of HeLa cells was determined using the 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The acquired data from spectroscopic studies was compared with that of the reported natural compounds in data bases and found to be the known antibiotic, setamycin. The antibiotic (RVE-02) showed a broad spectrum of bioactivity against both Gram-positive and Gram-negative bacteria, with MIC values that ranged from 1.97 to 125 μg/ml. The bioactivity results also demonstrated antiproliferation and morphological change in HeLa cells with an IC50 value of 24.30μg/ml of antibiotic. The antibiotic, obtained from S. monomycini RVE129, could be a potential candidate to combat pathogens including drug-resistant S. aureus. Further, the effect on HeLa cells suggests that it could be a prominent cancer chemotherapeutic agent.
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Rawangkan A, Wongsirisin P, Pook-In G, Siriphap A, Yosboonruang A, Kiddee A, Chuerduangphui J, Reukngam N, Duangjai A, Saokaew S, Praphasawat R. Dinactin: A New Antitumor Antibiotic with Cell Cycle Progression and Cancer Stemness Inhibiting Activities in Lung Cancer. Antibiotics (Basel) 2022; 11:antibiotics11121845. [PMID: 36551502 PMCID: PMC9774622 DOI: 10.3390/antibiotics11121845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/23/2022] Open
Abstract
Lung cancer, especially non-small cell lung cancer (NSCLC), is one of the most complex diseases, despite the existence of effective treatments such as chemotherapy and immunotherapy. Since cancer stem cells (CSCs) are responsible for chemo- and radio-resistance, metastasis, and cancer recurrence, finding new therapeutic targets for CSCs is critical. Dinactin is a natural secondary metabolite produced by microorganisms. Recently, dinactin has been revealed as a promising antitumor antibiotic via various mechanisms. However, the evidence relating to cell cycle progression regulation is constrained, and effects on cancer stemness have not been elucidated. Therefore, the aim of this study is to evaluate the new function of dinactin in anti-NSCLC proliferation, focusing on cell cycle progression and cancer stemness properties in Lu99 and A549 cells. Flow cytometry and immunoblotting analyses revealed that 0.1-1 µM of dinactin suppresses cell growth through induction of the G0/G1 phase associated with down-regulation of cyclins A, B, and D3, and cdk2 protein expression. The tumor-sphere forming capacity was used to assess the effect of dinactin on the cancer stemness potential in NSCLC cells. At a concentration of 1 nM, dinactin reduced both the number and size of the tumor-spheres. The quantitative RT-PCR analyses indicated that dinactin suppressed sphere formation by significantly reducing expression of CSC markers (i.e., ALDH1A1, Nanog, Oct4, and Sox2) in Lu99 cells. Consequently, dinactin could be a promising strategy for NSCLC therapy targeting CSCs.
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Affiliation(s)
- Anchalee Rawangkan
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
- UNIt of Excellence on Clinical Outcomes Research and IntegratioN (UNICORN), School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Pattama Wongsirisin
- Department of Medical Services, National Cancer Institute, Bangkok 10400, Thailand
| | - Grissana Pook-In
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Achiraya Siriphap
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Atchariya Yosboonruang
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Anong Kiddee
- Division of Microbiology and Parasitology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | | | - Nanthawan Reukngam
- Laboratory of Organic Synthesis, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Acharaporn Duangjai
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Surasak Saokaew
- UNIt of Excellence on Clinical Outcomes Research and IntegratioN (UNICORN), School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
- Division of Social and Administrative Pharmacy, Department of Pharmaceutical Care, School of Pharmaceutical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Ratsada Praphasawat
- Department of Pathology, School of Medicine, University of Phayao, Phayao 56000, Thailand
- Correspondence: ; Tel.: +66-54466666 (ext. 3824) or +66-86-926-2448
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Polapally R, Mansani M, Rajkumar K, Burgula S, Hameeda B, Alhazmi A, Bantun F, Almalki AH, Haque S, El Enshasy HA, Sayyed RZ. Melanin pigment of Streptomyces puniceus RHPR9 exhibits antibacterial, antioxidant and anticancer activities. PLoS One 2022; 17:e0266676. [PMID: 35468144 PMCID: PMC9037932 DOI: 10.1371/journal.pone.0266676] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/24/2022] [Indexed: 11/25/2022] Open
Abstract
The present study reveals the production of dark, extracellular melanin pigment (386 mg/L) on peptone yeast extract iron agar medium by Streptomyces puniceus RHPR9 using the gravimetric method. UV-Visible, Fourier Transform Infrared (FTIR), and Nuclear Magnetic Resonance (1H) (NMR) spectroscopy confirmed the presence of melanin. Extracted melanin showed antibacterial activity against human pathogens such as Bacillus cereus, Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli except for Klebsiella pneumoniae. A potent free radical scavenging activity was observed at 100 μg/mL of melanin by the DPPH method with a concentration of 89.01±0.05% compared with ascorbic acid 96.16±0.01%. Antitumor activity of melanin was evaluated by MTT assay against HEK 293, HeLa, and SK-MEL-28 cell lines with IC50 values of 64.11±0.00, 14.43±0.02, and 13.31±0.01 μg/mL respectively. Melanin showed maximum anti-inflammatory activity with human red blood cells (hRBC) (78.63 ± 0.01%) and minimum hemolysis of 21.37±0.2%. The wound healing potential of the pigment was confirmed on HeLa cells, cell migration was calculated, and it was observed that cell migration efficiency decreased with an increase in the concentration of melanin. To our knowledge, this is the first evidence of melanin produced from S. puniceus RHPR9 that exhibited profound scavenging, anti-inflammatory and cytotoxic activities.
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Affiliation(s)
- Ravinder Polapally
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Manasa Mansani
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Karthik Rajkumar
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Sandeepta Burgula
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Bee Hameeda
- Department of Microbiology, University College of Science, Osmania University, Hyderabad, India
| | - Alaa Alhazmi
- Medical Laboratory Technology Department, Jazan University, Jazan, Saudi Arabia
- SMIRES for Consultation in Specialized Medical Laboratories, Jazan University, Jazan, Saudi Arabia
| | - Farkad Bantun
- Department of Microbiology, Faculty of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia
| | - Atiah H. Almalki
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, Taif, Saudi Arabia
- Addiction and Neuroscience Research Unit, College of Pharmacy, Taif University, Al-Hawiah, Taif, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing and Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
- Bursa Uludağ University Faculty of Medicine, Görükle Campus, Nilüfer, Bursa, Turkey
| | - Hesham Ali El Enshasy
- Institute of Bioproduct Development (IBD), Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Johor, Malaysia
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai, Johor Bahru, Johor, Malaysia
- City of Scientific Research and Technology Applications (SRTA), New Burg Al Arab, Alexandria, Egypt
| | - R. Z. Sayyed
- Department of Microbiology, PSGVP Mandal’s Arts, Science, and Commerce College, Shahada, India
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Sarmiento-Vizcaíno A, Martín J, Reyes F, García LA, Blanco G. Bioactive Natural Products in Actinobacteria Isolated in Rainwater From Storm Clouds Transported by Western Winds in Spain. Front Microbiol 2021; 12:773095. [PMID: 34858379 PMCID: PMC8631523 DOI: 10.3389/fmicb.2021.773095] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/14/2021] [Indexed: 11/13/2022] Open
Abstract
Actinobacteria are the main producers of bioactive natural products essential for human health. Although their diversity in the atmosphere remains largely unexplored, using a multidisciplinary approach, we studied here 27 antibiotic producing Actinobacteria strains, isolated from 13 different precipitation events at three locations in Northern and Southern Spain. Rain samples were collected throughout 2013-2016, from events with prevailing Western winds. NOAA HYSPLIT meteorological analyses were used to estimate the sources and trajectories of the air-mass that caused the rainfall events. Five-day backward air masses trajectories of the diverse events reveals a main oceanic source from the North Atlantic Ocean, and in some events long range transport from the Pacific and the Arctic Oceans; terrestrial sources from continental North America and Western Europe were also estimated. Different strains were isolated depending on the precipitation event and the latitude of the sampling site. Taxonomic identification by 16S rRNA sequencing and phylogenetic analysis revealed these strains to belong to two Actinobacteria genera. Most of the isolates belong to the genus Streptomyces, thus increasing the number of species of this genus isolated from the atmosphere. Furthermore, five strains belonging to the rare Actinobacterial genus Nocardiopsis were isolated in some events. These results reinforce our previous Streptomyces atmospheric dispersion model, which we extend herein to the genus Nocardiopsis. Production of bioactive secondary metabolites was analyzed by LC-UV-MS. Comparative analyses of Streptomyces and Nocardiopsis metabolites with natural product databases led to the identification of multiple, chemically diverse, compounds. Among bioactive natural products identified 55% are antibiotics, both antibacterial and antifungal, and 23% have antitumor or cytotoxic properties; also compounds with antiparasitic, anti-inflammatory, immunosuppressive, antiviral, insecticidal, neuroprotective, anti-arthritic activities were found. Our findings suggest that over time, through samples collected from different precipitation events, and space, in different sampling places, we can have access to a great diversity of Actinobacteria producing an extraordinary reservoir of bioactive natural products, from remote and very distant origins, thus highlighting the atmosphere as a contrasted source for the discovery of novel compounds of relevance in medicine and biotechnology.
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Affiliation(s)
- Aida Sarmiento-Vizcaíno
- Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Universidad de Oviedo, Oviedo, Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Granada, Spain
| | - Luis A García
- Departamento de Ingeniería Química y Tecnología del Medio Ambiente, Área de Ingeniería Química, Universidad de Oviedo, Oviedo, Spain
| | - Gloria Blanco
- Departamento de Biología Funcional, Área de Microbiología, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario de Oncología del Principado de Asturias, Universidad de Oviedo, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Universidad de Oviedo, Oviedo, Spain
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Goel N, Fatima SW, Kumar S, Sinha R, Khare SK. Antimicrobial resistance in biofilms: Exploring marine actinobacteria as a potential source of antibiotics and biofilm inhibitors. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2021; 30:e00613. [PMID: 33996521 PMCID: PMC8105627 DOI: 10.1016/j.btre.2021.e00613] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/19/2021] [Accepted: 03/21/2021] [Indexed: 12/12/2022]
Abstract
Antimicrobial resistance (AMR) is one of the serious global public health threats that require immediate action. With the emergence of new resistance mechanisms in infection-causing microorganisms such as bacteria, fungi, and viruses, AMR threatens the effective prevention and treatment of diseases caused by them. This has resulted in prolonged illness, disability, and death. It has been predicted that AMR will lead to over ten million deaths by 2050. The rapid spread of multidrug-resistant bacteria is also causing old antibiotics to become ineffective. Among the diverse factors contributing to AMR, intrinsic biofilm development has been highlighted as an essential contributing facet. Moreover, biofilm-derived antibiotic tolerance leads to serious recurrent chronic infections. Therefore, the discovery of novel bioactive molecules is a potential solution that can help combat AMR. To achieve this, sustained mining of novel antimicrobial leads from actinobacteria, particularly marine actinobacteria, can be a promising strategy. Given their vast diversity and different habitats, the extraordinary capacity of actinobacteria can be tapped to synthesize new antibiotics or bioactive molecules for biofilm inhibition. Advanced screening strategies and novel approaches in the field of modern biochemical and molecular biology can be used to detect such new compounds. In view of this, the present review focuses on understanding some of the recent strategies to inhibit biofilm formation and explores the potential role of marine actinobacteria as sources of novel antibiotics and biofilm inhibitor molecules.
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Affiliation(s)
- Nikky Goel
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sumit Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, India
| | | | - Sunil K. Khare
- Department of Chemistry, Indian Institute of Technology Delhi, India
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Distribution and Characterization of Actinomycetes in Mangrove Habitats (Red Sea, Egypt) with Special Emphasis on Streptomyces mutabilis M3MT483919. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.1.19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Ten sediment samples were gathered from several geographical locations around mangrove habitat, Red Sea coast, Egypt, during summer 2019. Actinobacteria are widespread in most mangrove soil samples. The average actinomycetes counts in sediment samples were ranged from 4 to 15 CFUg-1, also physico-chemical characters for soil samples were determined. Statistical analysis was applied to assess if the geographical location and physico-chemical characters influenced the communities of actinomycetes. A total of 10 actinomycetes were isolated and characterized physiologically and biochemically. The antimicrobial activities of different actinomycetes isolates were assessed. Isolate M3 was chosen as the most promising isolate with broad antagonistic activity against Bacillus subtilis ATCC 6633, Escherichia coli ATCC 19404, Staphylococcus aureus ATCC6538, Pseudomonas aeruginosa ATCC 9027, and Candida albicans ATCC 10231 with inhibition zones ranged from 12.0 ± 0.9 to 20.0 ± 1.9 mm. Genotypic characterization of isolate M3 was made using 16S rDNA sequence analysis and identified as Streptomyces mutabilis M3 with accession number MT483919. This strain exhibited anticancer activity against breast cancer cell line (Mcf7), liver cancer cell line (HepG2) and colon cancer cell line (HCT116) and the IC50 values were 324.77, 333.71 and 354.46, respectively. Streptomyces mutabilis M3 MT483919 had high bio-flocculating activity for seawater treatment, and the recovery of the samples ranged between 71.97 and 76.05%. The crude extract of Streptomyces mutabilis MT483919 M3 was analyzed by Fourier transform infrared spectrum (FT-IR) and Gas chromatography-mass spectrometry (GC-MS).
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Zhang K, Gu L, Zhang Y, Liu Z, Li X. Dinactin from a new producer, Streptomyces badius gz-8, and its antifungal activity against the rubber anthracnose fungus Colletotrichum gloeosporioides. Microbiol Res 2020; 240:126548. [PMID: 32653809 DOI: 10.1016/j.micres.2020.126548] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/24/2020] [Accepted: 07/03/2020] [Indexed: 10/23/2022]
Abstract
Colletotrichum gloeosporioides is a main cause of rubber anthracnose, which results in very large losses for the natural rubber industry. In this study, an actinomycete strain gz-8 was isolated and had strong antagonistic activity against C. gloeosporioides, with an inhibition rate of 72.5 %. Strain gz-8 was identified as Streptomyces badius. Three active compounds were separated from S. badius gz-8 and identified as feigrisolide B, feigrisolide C and dinactin according to the mass spectrometry and NMR-spectra results. In the three compounds, dinactin exhibited the best antifungal activity against C. gloeosporioides, with an EC50 value of 2.55 μg/mL, and its minimum inhibitory concentration was 44 μg/mL. Dinactin had broad inhibitory activities against nine other pathogenic fungi, and it also had an obvious control effect on rubber anthracnose comparable to that of chlorothalonil. Dinactin could inhibit the conidiogenesis and spore germination of C. gloeosporioides. This report will contribute to understanding the antifungal activity of dinactin against C. gloeosporioides.
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Affiliation(s)
- Kai Zhang
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Liushuang Gu
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Yuefeng Zhang
- School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Zhiqiang Liu
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, China; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China.
| | - Xiaoyu Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, Hainan University, Haikou, China; School of Life and Pharmaceutical Sciences, Hainan University, Haikou, China.
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12
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Haverman TM, Laheij AMGA, Nie M, Deng DM, Raber-Durlacher JE, de Soet JJ, Rozema FR. Exploring the role of oral microorganisms in the pathogenesis of mucositis by assessing their impact on metabolic activity and reproductive capacity of epithelial cells in vitro. Support Care Cancer 2020; 28:4729-4735. [PMID: 31965308 PMCID: PMC7447654 DOI: 10.1007/s00520-020-05318-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 01/17/2020] [Indexed: 02/08/2023]
Abstract
Purpose Clinical and in vitro studies showed selected oral microorganisms to be related to delayed wound healing and ulcerative oral mucositis. However, it is not known whether this effect is due to reduced metabolism and/or the reduced reproductive capacity of epithelial cells. Therefore, we studied the influence of the oral microorganisms Porphyromonas gingivalis, Candida glabrata, and Candida kefyr on cell metabolism and reproductive capacity of oral epithelial cells, aimed to further unravel the pathogenesis of oral mucositis. Methods Oral epithelial cells were exposed to different concentrations of P. gingivalis, C. glabrata, and C. kefyr as mono-infections or mixed together. An MTT assay was performed to determine the effect on cell metabolism. A clonogenic assay was used to study the effect on the reproductive capacity of oral epithelial cells. Results The metabolism of oral epithelial cells was reduced when the microorganisms were present in high concentrations: P. gingivalis at a multiplicity of infection (MOI) of 1000 and the Candida spp. at MOI 100. No statistical difference was observed in the ability of a single epithelial cell to grow into a colony of cells between control and P. gingivalis, C. glabrata, and C. kefyr, independent of the concentrations and combinations used. Conclusion P. gingivalis, C. glabrata, and C. kefyr lowered the metabolic activity of oral epithelial cells in high concentrations, yet they did not influence the reproductive capacity of epithelial cells. Their impact on ulcerative oral mucositis is likely due to an effect on the migration, proliferation, and metabolism of epithelial cells.
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Affiliation(s)
- Thijs M Haverman
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and the Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands
| | - Alexa M G A Laheij
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and the Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands. .,Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and the Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
| | - Min Nie
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and the Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dong M Deng
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and the Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Judith E Raber-Durlacher
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and the Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands.,Department of Oral- and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Johannes J de Soet
- Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and the Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Frederik R Rozema
- Department of Oral Medicine, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and the Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA, Amsterdam, The Netherlands.,Department of Oral- and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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Kumar P, Kundu A, Kumar M, Solanki R, Kapur MK. Exploitation of potential bioactive compounds from two soil derived actinomycetes, Streptomyces sp. strain 196 and RI.24. Microbiol Res 2019; 229:126312. [PMID: 31434034 DOI: 10.1016/j.micres.2019.126312] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 07/30/2019] [Accepted: 08/10/2019] [Indexed: 10/26/2022]
Abstract
Due to emergence of drug resistant pathogens, nearly all available medicines are becoming ineffective against these life threatening pathogens so there is dire need for the discovery of compounds having unique modes of action. During our previous studies, actinomycetes designated as 196 and RI.24 were isolated, screened for bioactive compounds production and characterized using 16S rRNA gene sequencing. Colony 196 was identified as strain of Streptomyces albolongus (100% sequence similarity) and RI.24 as strain of Streptomyces enissocaesilis (100% sequence similarity). In current study, potential bioactive compounds produced by these strains were characterized. Cold extraction method was applied for taking out of bioactive compounds from actinomycetes. Minimum inhibitory concentration (MIC) determination of compounds from these strains showed activity nearly in the range of commercial antibiotics (strain 196 0.0075 mg/ml, RI.24 0.25 mg/ml and chloramphenicol 0.0075 mg/ml, ampicillin 0.025 mg/ml). Structural elucidation of these compounds was carried out using spectroscopic techniques of LC-MS/MS and 1H NMR. Compounds K-252-C-Aglycone, indolocarbazole alkaloid, decoyinine, cycloheximide were detected from strain 196 whereas daunorubicin, hygromycin B, agecorynin F, indinavir-N-glucuronide and minocycline were identified from strain RI.24.Current study reports these compounds for the first time from strains of Streptomyces albolongus and Streptomyces enissocaesilis. Present investigation also suggests that strains 196 and RI.24 contain polyketide synthase-I (PKS-I) and non-ribosomal peptide synthetase (NRPS) gene clusters which are responsible for the production of bioactive compounds. The results of this study can be used by the scientific world or pharmaceutical industries for the development of new drugs/formulations by applying more advanced techniques.
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Affiliation(s)
- Prateek Kumar
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, New Delhi, 110 019, India
| | - Aditi Kundu
- Division of Agricultural Chemicals, ICAR- Indian Agricultural Research Institute, New Delhi, 110 012, India
| | - Munendra Kumar
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, New Delhi, 110 019, India
| | - Renu Solanki
- Deen Dayal Upadhyaya College, University of Delhi, Sector 3, Dwarka, Opp NSIT, New Delhi, 110 078, India
| | - Monisha Khanna Kapur
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, New Delhi, 110 019, India.
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Ortega HE, Ferreira LLG, Melo WGP, Oliveira ALL, Ramos Alvarenga RF, Lopes NP, Bugni TS, Andricopulo AD, Pupo MT. Antifungal compounds from Streptomyces associated with attine ants also inhibit Leishmania donovani. PLoS Negl Trop Dis 2019; 13:e0007643. [PMID: 31381572 PMCID: PMC6695191 DOI: 10.1371/journal.pntd.0007643] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 08/15/2019] [Accepted: 07/19/2019] [Indexed: 11/30/2022] Open
Abstract
Bacterial strains isolated from attine ants showed activity against the insect specialized fungal pathogen Escovopsis and also against the human protozoan parasite Leishmania donovani. The bioassay guided fractionation of extracts from cultures of Streptomyces sp. ICBG292, isolated from the exoskeleton of Cyphomyrmex workers, led to the isolation of Mer-A2026B (1), piericidin-A1 (2) and nigericin (3). Nigericin (3) presented high activity against intracellular amastigotes of L. donovani (IC50 0.129 ± 0.008 μM). Streptomyces puniceus ICBG378, isolated from workers of Acromyrmex rugosus rugosus, produced dinactin (4) with potent anti-L. donovani activity against intracellular amastigotes (IC50 0.018 ± 0.003 μM). Compounds 3 and 4 showed good selectivity indexes, 88.91 and 656.11 respectively, and were more active than positive control, miltefosine. Compounds 1–4 were also active against some Escovopsis strains. Compounds 1 and 2 were also produced by Streptomyces sp. ICBG233, isolated from workers of Atta sexdens, and detected in ants’ extracts by mass spectrometry, suggesting they are produced in the natural environment as defensive compounds involved in the symbiotic interaction. Visceral leishmaniasis, caused by Leishmania infantum and L. donovani, is characterized by high rate mortality worldwide. Current treatments for this disease suffer from toxicity, variable efficacy, requirements for parenteral administration and length of treatment regimens. New chemical entities and development of new drugs are important to overcome the impact of this protozoan disease. Actinobacterial strains, such as Streptomyces, have been a source of most naturally derived antibiotics, as well as anticancer, anthelmintic, and antifungal drugs. These microorganisms also produce small molecules important in symbiotic interactions with insects, such as fungus-growing ants, fungus-growing termites, beetles and wasps against pathogens. Several novel compounds have been reported from these microorganisms with promising biological activities. In this work we show an interesting ecologic approach for drug discovery that also shows promise for the identification of antileishmanial natural products from fungus-growing ant ecosystem. Two compounds isolated from Streptomyces strains showed potent activity against L. donovani, higher than the positive control (miltefosine) with high selectivity indexes.
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Affiliation(s)
- Humberto E. Ortega
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Leonardo L. G. Ferreira
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos-SP, Brazil
| | - Weilan G. P. Melo
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Ana Ligia L. Oliveira
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - René F. Ramos Alvarenga
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Norberto P. Lopes
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Tim S. Bugni
- Pharmaceutical Sciences Division, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Adriano D. Andricopulo
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos-SP, Brazil
| | - Mônica T. Pupo
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
- * E-mail:
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Hao L, Zheng X, Wang Y, Li S, Shang C, Xu Y. Inhibition of Tomato Early Blight Disease by Culture Extracts of a Streptomyces puniceus Isolate from Mangrove Soil. PHYTOPATHOLOGY 2019; 109:1149-1156. [PMID: 30794487 DOI: 10.1094/phyto-12-18-0444-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study investigates the potential of natural products derived from a mangrove rhizosphere bacterium in tomato early blight management. A Streptomyces puniceus strain L75 was isolated from the rhizosphere of Acanthus ilicifolius Linn in the Mai Po Reserve, Hong Kong. The crude ethyl acetate (EA) extract of L75 fermentation cultures has broad-spectrum antifungal bioactivities. L75 EA extract was significantly more effective in Alternaria solani growth inhibition at 25 μg/ml or lower compared with Mancozeb, with no observable negative impacts on tomato leaves or root development. Furthermore, L75 EA extract had significantly lower aquatic toxicity than Mancozeb at the same concentrations. L75 EA extract targets germ tube elongation of A. solani conidia, with a fungistatic mode of action. Liquid chromatography-quadrupole time-of-flight mass spectrometry analysis identified two possible antifungal compounds, Alteramide A and the Heat-Stable Antifungal Factor, which together contribute partially to the bioactivity of L75 EA extract. On detached tomato leaves, coinoculation of A. solani with L75 EA extract of 50, 25, or 5 μg/ml reduced diseased areas by ∼98, ∼90, and ∼48%, respectively, relative to the control after 5 days. This study demonstrates the potential of natural products from mangrove rhizosphere bacteria in agricultural applications.
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Affiliation(s)
- Lingyun Hao
- 1 Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Xiaoli Zheng
- 1 Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Yu Wang
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Shuangfei Li
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Chenjing Shang
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Ying Xu
- 1 Guangdong Provincial Key Laboratory for Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
- 2 Shenzhen Key Laboratory of Marine Bioresource & Eco-Environmental Science, Shenzhen Engineering Laboratory for Marine Algal Biotechnology, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
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Hussain A, Dar MS, Bano N, Hossain MM, Basit R, Bhat AQ, Aga MA, Ali S, Hassan QP, Dar MJ. Identification of dinactin, a macrolide antibiotic, as a natural product-based small molecule targeting Wnt/β-catenin signaling pathway in cancer cells. Cancer Chemother Pharmacol 2019; 84:551-559. [PMID: 31129716 DOI: 10.1007/s00280-019-03870-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Accepted: 05/10/2019] [Indexed: 01/11/2023]
Abstract
PURPOSE Despite the fact that hyper-activation of Wnt/β-catenin signaling pathway has been seen in many cancers, including liver, colorectal and lung carcinoma, no small molecule inhibitors are available that specifically target this pathway. In this study, we analyzed the impact of dinactin (DA), an antibiotic ionophore produced by Streptomyces species, as an effective small molecule targeting Wnt/β-catenin signaling pathway in cancer cells. METHODS We performed MTT assays to investigate cell viability and proliferation after exposure to small molecules. Protein expression analysis was carried out by western blotting. Top-Flash reporter assays were used to score for β-catenin signaling and cell cycle analysis was carried out by flow cytometry. RESULTS In the first set of experiments, DA was seen to selectively inhibit the proliferation of HCT-116 and HepG2 cancer cells, unlike HEK-293 cells (a low tumorigenic cell line), in apoptosis-independent manner. Further, DA was seen to block the G1/S progression and decrease the expression of cyclin D1 in cancer cells. Since cyclin D1 is the downstream target gene of Wnt/β-catenin signaling, we examined the impact of DA on TCF-dependent β-catenin activity using Top-Flash reporter assay. Interestingly, DA significantly decreased Top-Flash activity at lower nano-molar concentrations when compared with salinomycin in HCT-116 and HepG2 cells. CONCLUSION We report the identification of dinactin as a natural product-based small molecule that effectively blocks the Wnt/β-catenin signaling pathway in cancer cells at nano-molar concentration. We anticipate that DA could be developed as a novel drug for anti-cancer therapy and for the management of neuropathic pain.
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Affiliation(s)
- Aehtesham Hussain
- Academy of Scientific and Innovative Research, New Delhi, India
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir, 190005, India
| | - Mohd Saleem Dar
- Academy of Scientific and Innovative Research, New Delhi, India
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
- Department of Biochemistry, Purdue University, West Lafayette, IN, 47907-2063, USA
| | - Nasima Bano
- Academy of Scientific and Innovative Research, New Delhi, India
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
| | - Md Mehedi Hossain
- Academy of Scientific and Innovative Research, New Delhi, India
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
| | - Rafia Basit
- Academy of Scientific and Innovative Research, New Delhi, India
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
| | - Aadil Qadir Bhat
- Academy of Scientific and Innovative Research, New Delhi, India
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
| | - Mushtaq A Aga
- Medicinal Chemistry Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, Jammu and Kashmir, 180001, India
| | - Sabeena Ali
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir, 190005, India
| | - Qazi Parvaiz Hassan
- Academy of Scientific and Innovative Research, New Delhi, India.
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanat Nagar, Srinagar, Jammu and Kashmir, 190005, India.
| | - Mohd Jamal Dar
- Academy of Scientific and Innovative Research, New Delhi, India.
- Cancer Pharmacology Division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India.
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Fan Y, Zhang Y, Liu Y, Xu W, Yang Y, Hao Y, Tao L. A natural product enhances apoptosis via mitochondria/caspase-mediated pathway in HeLa cells. J Cell Biochem 2019; 120:16811-16823. [PMID: 31099051 DOI: 10.1002/jcb.28939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/04/2019] [Accepted: 02/14/2019] [Indexed: 12/27/2022]
Abstract
Cervical cancer is the fourth most lethal human malignancy and the leading cause of death among females around the world. Many antitumor agents have microbial origins. 5'-epi-SPA-6952A is a new 24-membered macrolide isolated from the cultured broth of Streptomyces diastatochromogenes. Therefore, we studied the activity and molecular mechanism of 5'-epi-SPA-6952A in human cervical carcinoma HeLa cell. The results showed that 5'-epi-SPA-6952A significantly inhibited cell proliferation and migration. In addition, 5'-epi-SPA-6952A obviously increased the production of intracellular reactive oxygen species and DNA damage in HeLa cells. Moreover, nuclear shrinkage of cells, decrease in mitochondrial membrane potential, and upregulation of Bax/Bcl-2 ratio resulted in the release of cytochrome c, and activation of caspase-9/3 was observed in HeLa cells treated with 5'-epi-SPA-6952A, which means it enhanced the intrinsic mitochondrial apoptosis. Besides, DNA-damage associated proteins poly (ADP-ribose) polymerase (PARP) and p53 were also studied, and the expressions of cleaved-PARP and p53 were drastically increased in HeLa cells treated with 5'-epi-SPA-6952A. Furthermore, we confirmed that 5'-epi-SPA-6952A affected the survival of HeLa cells by blocking cell cycle progression in the G1 phase. Taken together, the results shows that 5'-epi-SPA-6952A significantly inhibited HeLa cells proliferation via intrinsic mitochondrial apoptosis, cell cycle arrest, and blocking cell migration.
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Affiliation(s)
- Yangyang Fan
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yutian Liu
- College of Life Sciences, Shanghai Normal University, Shanghai, China
| | - Wenping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yun Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Youwu Hao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Liming Tao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, China
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Hussain A, Rather MA, Bhat ZS, Majeed A, Maqbool M, Shah AM, Aga MA, Shah A, Mushtaq S, Sangwan PL, Hassan QP, Ahmad Z. In vitro evaluation of dinactin, a potent microbial metabolite against Mycobacterium tuberculosis. Int J Antimicrob Agents 2018; 53:49-53. [PMID: 30267759 DOI: 10.1016/j.ijantimicag.2018.09.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/17/2018] [Accepted: 09/22/2018] [Indexed: 12/24/2022]
Abstract
Current long duration treatment options and the emergence of drug resistance in tuberculosis (TB) have led to renewed interest in discovery of novel anti-tubercular agents or the scaffolds exhibiting enhanced efficacy with current anti-TB drugs. Herein, dinactin, a potent bioactive macrotetrolide isolated from Streptomyces puniceus AS13, was evaluated against Mycobacterium tuberculosis H37Rv and other susceptible and drug-resistant clinical isolates of M. tuberculosis. In vitro pharmacological assays showed that dinactin is bactericidal against laboratory standard strain M. tuberculosis H37Rv (minimum inhibitory concentration [MIC] 1 µg/mL and minimum bactericidal concentration [MBC] 4 µg/mL). Dinactin also retained its activity against various clinical isolates, including multidrug-resistant strains of M. tuberculosis. Whole cell interaction assays with standard first- and second-line anti-TB drugs showed the synergistic interaction of dinactin with rifampicin or amikacin, reflecting its suitability for use in combination regimens. The killing kinetics studies of dinactin against M. tuberculosis H37Rv revealed that it has strong concentration-dependent anti-TB activity that is also dependent on time. The kill curve also showed dynamic killing capacity of dinactin as it exhibited bactericidal potential at all concentrations tested. Kill curve data demonstrated that dinactin, like isoniazid, exerts its strong tuberculocidal activity within the first two days of exposure. This evidence strongly supports further evaluation of dinactin as a new option in the treatment of TB.
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Affiliation(s)
- Aehtesham Hussain
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India; Academy of Scientific and Innovative Research, CSIR - Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, 180001, India
| | - Muzafar Ahmad Rather
- Clinical Microbiology and PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Zubair Shanib Bhat
- Academy of Scientific and Innovative Research, CSIR - Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, 180001, India; Clinical Microbiology and PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Aasif Majeed
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Mubashir Maqbool
- Clinical Microbiology and PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Aabid Manzoor Shah
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Mushtaq A Aga
- Bio-organic chemistry division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Aiyatullah Shah
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Saleem Mushtaq
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India
| | - Payare L Sangwan
- Bio-organic chemistry division, CSIR - Indian Institute of Integrative Medicine, Jammu Tawi, 180001, India
| | - Qazi Parvaiz Hassan
- Microbial Biotechnology Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India; Academy of Scientific and Innovative Research, CSIR - Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, 180001, India.
| | - Zahoor Ahmad
- Academy of Scientific and Innovative Research, CSIR - Indian Institute of Integrative Medicine, Canal Road, Jammu Tawi, 180001, India; Clinical Microbiology and PK/PD Division, CSIR - Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, Jammu & Kashmir 190005, India.
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