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Hassan FS, El-Fakharany EM, El-Maradny YA, Saleh AK, El-Sayed MH, Mazi W, Omer N, Abdelaziz MA, Jame R, Alatawi IS, El-Gendi H. Comprehensive insight into exploring the potential of microbial enzymes in cancer therapy: Progress, challenges, and opportunities: A review. Int J Biol Macromol 2024; 277:134535. [PMID: 39111467 DOI: 10.1016/j.ijbiomac.2024.134535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 08/03/2024] [Accepted: 08/04/2024] [Indexed: 09/03/2024]
Abstract
Microbial enzymes are crucial catalysts in various industries due to their versatility and efficiency. The microbial enzymes market has recently expanded due to increased demand for many reasons. Among them are eco-friendly solutions, developing novel microbial strains with enhanced enzymes that perform under harsh conditions, providing sustainability, and raising awareness about the benefits of enzyme-based products. By 2030, the global enzyme market is expected to account for $525 billion, with a growth rate of 6.7 %. L-asparaginase and L-glutaminase are among the leading applied microbial enzymes in antitumor therapy, with a growing market share of 16.5 % and 9.5 %, respectively. The use of microbial enzymes has opened new opportunities to fight various tumors, including leukemia, lymphosarcoma, and breast cancer, which has increased their demand in the pharmaceutical and medicine sectors. Despite their promising applications, commercial use of microbial enzymes faces challenges such as short half-life, immunogenicity, toxicity, and other side effects. Therefore, this review explores the industrial production, purification, formulation, and commercial utilization of microbial enzymes, along with an overview of the global enzyme market. With ongoing discoveries of novel enzymes and their applications, enzyme technology offers promising avenues for cancer treatment and other therapeutic interventions.
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Affiliation(s)
- Fareed Shawky Hassan
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Esmail M El-Fakharany
- Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria 21934, Egypt; Pharmaceutical and Fermentation Industries Development Centre (PFIDC), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, Egypt; Pharos University in Alexandria, Canal El Mahmoudia Street, Beside Green Plaza Complex, 21648, Alexandria, Egypt.
| | - Yousra A El-Maradny
- Pharmaceutical and Fermentation Industries Development Centre (PFIDC), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria, Egypt
| | - Ahmed K Saleh
- Cellulose and Paper Department, National Research Centre, El-Tahrir St., Dokki 12622, Giza, Egypt
| | - Mohamed H El-Sayed
- Department of Biology, College of Sciences and Arts-Rafha, Northern Border University, Arar, Saudi Arabia
| | - Wafa Mazi
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Kingdom of Saudi Arabia
| | - Noha Omer
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Kingdom of Saudi Arabia
| | - Mahmoud A Abdelaziz
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Kingdom of Saudi Arabia
| | - Rasha Jame
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Kingdom of Saudi Arabia
| | - Ibrahim Saleem Alatawi
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Kingdom of Saudi Arabia
| | - Hamada El-Gendi
- Bioprocess development department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, Alexandria 21934, Egypt
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2
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Darbandi A, Elahi Z, Dadgar-Zankbar L, Ghasemi F, Kakavandi N, Jafari S, Darbandi T, Ghanavati R. Application of microbial enzymes in medicine and industry: current status and future perspectives. Future Microbiol 2024:1-19. [PMID: 39269849 DOI: 10.1080/17460913.2024.2398337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 08/27/2024] [Indexed: 09/15/2024] Open
Abstract
Microbes are a major source of enzymes due to their ability to be mass-cultivated and genetically modified. Compared with plant and animal enzymes, microbial enzymes are more stable and active. Enzymes are generally classified into six classes based on their reaction, substrate specificity and mechanism of action. In addition to their application in medicine for treating diseases, these compounds are used as anti-inflammatory, thrombolytic and digestive agents. However, challenges such as immunogenicity, tissue specificity and short in vivo half-life make clinical trials complex. Enzymes are metabolic catalysts in industry and their production and extraction must be optimized to preserve profitability due to rising demand. The present review highlights the increasing importance of bacterial enzymes in industry and medicine and explores methods for their production, extraction and purification.
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Affiliation(s)
- Atieh Darbandi
- Molecular Microbiology Research Center, Shahed University, Tehran, Iran
| | - Zahra Elahi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Leila Dadgar-Zankbar
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Ghasemi
- Department of Pathobiology, Division of Microbiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Naser Kakavandi
- Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Sajjad Jafari
- Department of Medical Microbiology & Virology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Talieh Darbandi
- Department of Pharmacy, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Roya Ghanavati
- School of Medicine, Behbahan Faculty of Medical Sciences, Behbahan, Iran
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3
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Bagewadi ZK, Illanad GH, Shaikh IA, Mahnashi MH, Shettar SS, H KP, Alhazmi AYM, Hakami MA, Mahanta N, Singh SP, Karlo J, Khan A. Molecular expression, purification and structural characterization of recombinant L-Glutaminase from Streptomyces roseolus. Int J Biol Macromol 2024; 273:133142. [PMID: 38889830 DOI: 10.1016/j.ijbiomac.2024.133142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/20/2024] [Accepted: 06/12/2024] [Indexed: 06/20/2024]
Abstract
The present research reports the anti-cancer potential of recombinant L-Glutaminase from Streptomyces roseolus. L-Glutaminase gene was synthesized by codon-optimization, cloned and successfully expressed in E. coli BL21 (DE3). Affinity purified recombinant L-Glutaminase revealed a molecular mass of 32 kDa. Purified recombinant L-Glutaminase revealed stability at pH 7.0-8.0 with optimum activity at 70 °C further indicating its thermostable nature based on thermodynamic characterization. Recombinant L-Glutaminase exhibited profound stability in the presence of several biochemical parameters and demonstrated its metalloenzyme nature and was also found to be highly specific towards favorable substrate (l-Glutamine) based on kinetics. It demonstrated antioxidant property and pronounced cytotoxic effect against breast cancer (MCF-7 cell lines) in a dose dependent behavior with IC50 of 40.68 μg/mL. Matrix-assisted laser desorption ionization-time of flight-mass spectroscopy (MALDI-TOF-MS) analysis of desired mass peaks ascertained the recombinant L-Glutaminase identity. N-terminal amino acid sequence characterization through Edman degradation revealed highest resemblance for L-glutaminase within the Streptomyces sp. family. The purified protein was characterized structurally and functionally by employing spectroscopic methods like Raman, circular dichroism and nuclear magnetic resonance. The thermostability was assessed by thermogravimetric analysis. The outcomes of the study, suggests the promising application of recombinant L-Glutaminase as targeted therapeutic candidate for breast cancer.
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Affiliation(s)
- Zabin K Bagewadi
- Department of Biotechnology, KLE Technological University, Hubballi, Karnataka 580031, India.
| | - Gouri H Illanad
- Department of Biotechnology, KLE Technological University, Hubballi, Karnataka 580031, India
| | - Ibrahim Ahmed Shaikh
- Department of Pharmacology, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Saudi Arabia
| | - Shreya S Shettar
- Department of Biotechnology, KLE Technological University, Hubballi, Karnataka 580031, India
| | - Krushnamurthy P H
- Department of Chemistry, Indian Institute of Technology, Dharwad, Karnataka 580011, India
| | | | - Mohammed Ageeli Hakami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Nilkamal Mahanta
- Department of Chemistry, Indian Institute of Technology, Dharwad, Karnataka 580011, India.
| | - Surya P Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Dharwad, Karnataka 580011, India
| | - Jiro Karlo
- Department of Biosciences and Bioengineering, Indian Institute of Technology Dharwad, Karnataka 580011, India
| | - Aejaz Khan
- Department of General Science, Ibn Sina National College for Medical Studies, Jeddah 21418, Saudi Arabia
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Camacho KF, de Melo Carlos L, Bernal SPF, de Oliveira VM, Ruiz JLM, Ottoni JR, Vieira R, Neto A, Rosa LH, Passarini MRZ. Antarctic marine sediment as a source of filamentous fungi-derived antimicrobial and antitumor compounds of pharmaceutical interest. Extremophiles 2024; 28:21. [PMID: 38532228 DOI: 10.1007/s00792-024-01339-1] [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: 08/02/2023] [Accepted: 03/07/2024] [Indexed: 03/28/2024]
Abstract
Antarctica harbors a microbial diversity still poorly explored and of inestimable biotechnological value. Cold-adapted microorganisms can produce a diverse range of metabolites stable at low temperatures, making these compounds industrially interesting for biotechnological use. The present work investigated the biotechnological potential for antimicrobial and antitumor activity of filamentous fungi and bacteria isolated from marine sediment samples collected at Deception Island, Antarctica. A total of 89 microbial isolates were recovered from marine sediments and submitted to an initial screening for L-glutaminase with antitumoral activity and for antimicrobial metabolites. The isolates Pseudogymnoascus sp. FDG01, Pseudogymnoascus sp. FDG02, and Penicillium sp. FAD33 showed potential antiproliferative action against human pancreatic carcinoma cells while showing no toxic effect on non-tumor cells. The microbial extracts from unidentified three bacteria and four filamentous fungi showed antibacterial activity against at least one tested pathogenic bacterial strain. The isolate FDG01 inhibited four bacterial species, while the isolate FDG01 was active against Micrococcus luteus in the minimal inhibitory concentration of 0.015625 μg mL -1. The results pave the way for further optimization of enzyme production and characterization of enzymes and metabolites found and reaffirm Antarctic marine environments as a wealthy source of compounds potentially applicable in the healthcare and pharmaceutical industry.
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Affiliation(s)
- Karine Fernandes Camacho
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Layssa de Melo Carlos
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Suzan Prado Fernandes Bernal
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | | | - Jorge Luiz Maria Ruiz
- Laboratório de Biotecnologia da Saúde, Universidade Federal da Integração Latino-Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Júlia Ronzella Ottoni
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil
| | - Rosemary Vieira
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Arthur Neto
- Instituto de Geociências, Universidade Federal Fluminense, Niterói, RJ, Brazil
| | - Luiz Henrique Rosa
- Departamento de Microbiologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Michel Rodrigo Zambrano Passarini
- Laboratório de Biotecnologia Ambiental, Universidade Federal da Integração Latino-Americana - UNILA, Foz Do Iguaçu, PR, 85870-650, Brazil.
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Wardah ZH, Chaudhari HG, Prajapati V, Raol GG. Application of statistical methodology for the optimization of L-glutaminase enzyme production from Streptomyces pseudogriseolus ZHG20 under solid-state fermentation. J Genet Eng Biotechnol 2023; 21:138. [PMID: 37999820 PMCID: PMC10673782 DOI: 10.1186/s43141-023-00618-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 11/14/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND Actinomycetes are excellent microbial sources for various chemical structures like enzymes, most of which are used in pharmaceutical and industrial products. Actinomycetes are preferred sources of enzymes due to their high ability to produce extracellular enzymes. L-glutaminase has proven its essential role as a pharmaceutical agent in cancer therapy and an economic agent in the food industry. The current study aimed to screen the potent L-glutaminase producer and optimize the production media for maximum enzyme yield using one factor at a time (OFAT) approach and statistical approaches under solid-state fermentation (SSF). RESULTS Out of 20 actinomycetes strains isolated from rhizosphere soil, 5 isolates produced extracellular L-glutaminase. One isolate was chosen as the most potent strain, and identified as Streptomyces pseudogriseolus ZHG20 based on 16S rRNA. The production and optimization process were carried out under SSF, after optimization using OFAT method, the enzyme production increased up to 884.61 U/gds. Further, statistical strategy, response surface methodology (RSM), and central composite design (CCD) were employed for the level optimization of significant media component (p < 0.05), i.e., wheat bran, sesame oil cake, and corn steep liquor which are leading to increase 3.21-fold L-glutaminase production as compared to unoptimized media. CONCLUSIONS The presented investigation reveals the optimization of various physicochemical parameters using OFAT and RSM-CCD. Statistical approaches proved to be an effective method for increasing the yield of extracellular L-glutaminase from S. pseudogriseolus ZHG20 where L-glutaminase activity increased up to 1297.87 U/gds which is 3.21-fold higher than the unoptimized medium using a mixture of two solid substrates (wheat bran and sesame oil cake) incubated at pH 7.0 for 6 days at 33 °C.
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Affiliation(s)
- Zuhour Hussein Wardah
- Department of Microbiology, Shri Alpesh N. Patel PG Institute of Science and Research, Sardar Patel University, Vallabh Vidyanagar, Anand, Gujarat, 388001, India
| | - Hiral G Chaudhari
- Department of Microbiology, Shri Alpesh N. Patel PG Institute of Science and Research, Sardar Patel University, Vallabh Vidyanagar, Anand, Gujarat, 388001, India
| | - Vimalkumar Prajapati
- Division of Microbial and Environmental Biotechnology, Aspee Shakilam Biotechnology Institute, Navsari Agricultural University, Athwa Farm, Ghod Dod Road, Surat, Gujarat, 395007, India.
| | - Gopalkumar G Raol
- Shri R. P. Arts, Shri K.B. Commerce and Smt, BCJ Science College, Khambhat, 388620, Gujarat, India.
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6
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Ghattavi S, Homaei A. Marine enzymes: Classification and application in various industries. Int J Biol Macromol 2023; 230:123136. [PMID: 36621739 DOI: 10.1016/j.ijbiomac.2023.123136] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/23/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023]
Abstract
Oceans are regarded as a plentiful and sustainable source of biological compounds. Enzymes are a group of marine biomaterials that have recently drawn more attention because they are produced in harsh environmental conditions such as high salinity, extensive pH, a wide temperature range, and high pressure. Hence, marine-derived enzymes are capable of exhibiting remarkable properties due to their unique composition. In this review, we overviewed and discussed characteristics of marine enzymes as well as the sources of marine enzymes, ranging from primitive organisms to vertebrates, and presented the importance, advantages, and challenges of using marine enzymes with a summary of their applications in a variety of industries. Current biotechnological advancements need the study of novel marine enzymes that could be applied in a variety of ways. Resources of marine enzyme can benefit greatly for biotechnological applications duo to their biocompatible, ecofriendly and high effectiveness. It is beneficial to use the unique characteristics offered by marine enzymes to either develop new processes and products or improve existing ones. As a result, marine-derived enzymes have promising potential and are an excellent candidate for a variety of biotechnology applications and a future rise in the use of marine enzymes is to be anticipated.
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Affiliation(s)
- Saba Ghattavi
- Fisheries Department, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas, Iran
| | - Ahmad Homaei
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, Bandar Abbas, Iran.
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Simay S, Akbarzadeh-Khiavi M, Pourseif MM, Barar J, Safary A, Omidi Y. Recombinant production and characterization of L-glutaminase (glsA) as a promiscuity therapeutic enzyme. Appl Microbiol Biotechnol 2022; 106:5511-5524. [PMID: 35876873 DOI: 10.1007/s00253-022-12058-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/14/2022] [Accepted: 06/28/2022] [Indexed: 11/02/2022]
Abstract
Because of the therapeutical impacts of hydrolytic enzymes in different diseases, in particular malignancies, we aimed to produce a recombinant putative L-glutaminase (GLS ASL-1) from a recently characterized halo-thermotolerant Bacillus sp. SL-1. For this purpose, the glsA gene was identified and efficiently overexpressed in the Origami™ B (DE3) strain. The yield of the purified GLS ASL-1 was ~ 20 mg/L, indicating a significant expression of recombinant enzyme in the Origami. The enzyme activity assay revealed a significant hydrolytic effect of the recombinant GLS ASL-1 on L-asparagine (Asn) (i.e., Km 39.8 μM, kcat 19.9 S-1) with a minimal affinity for L-glutamine (Gln). The GLS ASL-1 significantly suppressed the growth of leukemic Jurkat cells through apoptosis induction (47.5%) in the IC50 dosage of the enzyme. The GLS ASL-1 could also change the Bax/Bcl2 expression ratio, indicating its apoptotic effect on cancer cells. The in silico analysis was conducted to predict structural features related to the histidine-tag exposure in the N- or C-terminal of the recombinant GLS ASL-1. In addition, molecular docking simulation for substrate specificity revealed a greater binding affinity of Asn to the enzyme binding-site residues than Gln, which was confirmed in experimental procedures as well. In conclusion, the current study introduced a recombinant GLS ASL-1 with unique functional and structural features, highlighting its potential pharmaceutical and medical importance. GLS ASL-1 represents the first annotated enzyme from Bacillus with prominent asparaginase activity, which can be considered for developing alternative enzymes in therapeutic applications. KEY POINTS: • Hydrolytic enzymes have critical applications in different types of human malignancies. • A recombinant L-glutaminase (GLS ASL-1) was produced from halo-thermotolerant Bacillus sp. SL-1. • GLS ASL-1 displayed a marked hydrolytic activity on L-asparagine compared to the L-glutamine. • GLS ASL-1 with significant substrate promiscuity may be an alternative for developing novel pharmaceuticals.
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Affiliation(s)
- Shayan Simay
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mostafa Akbarzadeh-Khiavi
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad M Pourseif
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Azam Safary
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Yadollah Omidi
- Department of Pharmaceutical Sciences, College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA.
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8
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Granchi C. Biological Activity of Natural and Synthetic Compounds. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123652. [PMID: 35744778 PMCID: PMC9228419 DOI: 10.3390/molecules27123652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/02/2022] [Indexed: 11/30/2022]
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9
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Natural Marine Products: Anti-Colorectal Cancer In Vitro and In Vivo. Mar Drugs 2022; 20:md20060349. [PMID: 35736152 PMCID: PMC9229715 DOI: 10.3390/md20060349] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 02/06/2023] Open
Abstract
Colorectal cancer, a malignant tumor with high mortality, has a poor prognosis due to drug resistance and toxicity in clinical surgery and chemotherapy. Thus, finding safer and more efficient drugs for clinical trials is vital and urgent. Natural marine compounds, with rich resources and original chemical structures, are applied widely in anticancer treatments. We provide a systematic overview of recently reported marine compounds such as alkaloids, peptides, terpenoids, polysaccharides, and carotenoids from in vitro, in vivo, and clinical studies. The in vitro studies summarized the marine origins and pharmacological mechanisms, including anti-proliferation, anti-angiogenesis, anti-migration, anti-invasion, the acceleration of cycle arrest, and the promotion of tumor apoptosis, of various compounds. The in vivo studies outlined the antitumor effects of marine compounds on colorectal cancer model mice and evaluated their efficacy in terms of tumor inhibition, hepatotoxicity, and nephrotoxicity. The clinical studies summarized the major chemical classifications and targets of action of the clinical drugs that have entered clinical approval and completed approval for marine anticancer. In summary, we present the current situation regarding the application of natural anti-colorectal cancer marine compounds and prospects for their clinical application.
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Characterization of a New L-Glutaminase Produced by Achromobacter xylosoxidans RSHG1, Isolated from an Expired Hydrolyzed L-Glutamine Sample. Catalysts 2021. [DOI: 10.3390/catal11111262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
As significant biocatalyst, L-glutaminases find potential applications in various fields, from nourishment to the pharmaceutical industry. Anticancer activity and flavor enhancement are the most promising applications of L-glutaminases. In this study, L-glutaminase was isolated and purified from an old glutamine sample. A selected bacterial isolate was characterized taxonomically by morphological characters, biochemical testing and 16S rDNA sequence homology testing. The taxonomical characterization of the isolate identified it as Achromobacter xylosoxidans strain RSHG1. The isolate showed maximum enzyme production at 30 °C, pH 9, with Sorbitol as a carbon source and L-Glutamine as a nitrogen and inducer source. L-Glutaminsae was purified by using column chromatography on a Sephadex G-75. The enzyme has a molecular weight of 40 KDa, pH optimal 7 and is stable in the pH range of 6–8. The optimum temperature for the catalyst was 40 °C and stable at 35–50 °C. The kinetic studies of the purified L-glutaminase exhibited Km and Vmax of 0.236 mM and 443.8 U/mg, respectively. L-Glutaminase activity was increased when incubated with 20 mM CaCl2, BaCl2, ZnSO4, KCl, MgSO4 and NaCl, whereas EDTA, CoCl2, HgCl, ZnSO4 and FeSO4 decreased the activity of the enzyme. The addition of 8% NaCl enhanced the glutaminase activity. L-Glutaminase immobilized on 3.6% agar was stable for up to 3 weeks.
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Barzkar N, Sohail M, Tamadoni Jahromi S, Nahavandi R, Khodadadi M. Marine microbial L-glutaminase: from pharmaceutical to food industry. Appl Microbiol Biotechnol 2021; 105:4453-4466. [PMID: 34043082 DOI: 10.1007/s00253-021-11356-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/11/2021] [Accepted: 05/16/2021] [Indexed: 11/27/2022]
Abstract
Deamination of L-glutamine to glutamic acid with the concomitant release of ammonia by the activity of L-glutaminase (L-glutamine amidohydrolase EC 3.5.1.2) is a unique reaction that also finds potential applications in different sectors ranging from therapeutics to food industry. Owing to its cost-effectiveness, rapidity, and compatibility with downstream processes, microbial production of L-glutaminase is preferred over the production by other sources. Marine microorganisms including bacteria, yeasts, and moulds have manifested remarkable capacity to produce L-glutaminase and, therefore, are considered as prospective candidates for large-scale production of this enzyme. The main focus of this article is to provide an overview of L-glutaminase producing marine microorganisms, to discuss strategies used for the lab- and large-scale production of these enzyme and to review the application of L-glutaminase from marine sources so that the future prospects can be understood. KEY POINTS: • L-glutaminase has potential applications in different sectors ranging from therapeutics to food industry • Marine microorganisms are considered as prospective candidates for large-scale production of L-glutaminase • Marine microbial L-glutaminase have great potential in therapeutics and in the food industry.
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Affiliation(s)
- Noora Barzkar
- Department of Marine Biology, Faculty of Marine Science and Technology, University of Hormozgan, 3995, Bandar Abbas, Iran.
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi, 75270, Pakistan
| | - Saeid Tamadoni Jahromi
- Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran
| | - Reza Nahavandi
- Animal Science Research Institute of Iran (ASRI), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Mojgan Khodadadi
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
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