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Anjomshoa M, Amirheidari B. Nuclease-like metalloscissors: Biomimetic candidates for cancer and bacterial and viral infections therapy. Coord Chem Rev 2022; 458:214417. [PMID: 35153301 PMCID: PMC8816526 DOI: 10.1016/j.ccr.2022.214417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 01/09/2022] [Indexed: 12/25/2022]
Abstract
Despite the extensive and rapid discovery of modern drugs for treatment of cancer, microbial infections, and viral illnesses; these diseases are still among major global health concerns. To take inspiration from natural nucleases and also the therapeutic potential of metallopeptide antibiotics such as the bleomycin family, artificial metallonucleases with the ability of promoting DNA/RNA cleavage and eventually affecting cellular biological processes can be introduced as a new class of therapeutic candidates. Metal complexes can be considered as one of the main categories of artificial metalloscissors, which can prompt nucleic acid strand scission. Accordingly, biologists, inorganic chemists, and medicinal inorganic chemists worldwide have been designing, synthesizing and evaluating the biological properties of metal complexes as artificial metalloscissors. In this review, we try to highlight the recent studies conducted on the nuclease-like metalloscissors and their potential therapeutic applications. Under the light of the concurrent Covid-19 pandemic, the human need for new therapeutics was highlighted much more than ever before. The nuclease-like metalloscissors with the potential of RNA cleavage of invading viral pathogens hence deserve prime attention.
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2
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Kurdy W, Yakovleva G, Ilinskaya O. Structure and Functional Potential of Arctic Sea Sediment Microbiota. J GEN APPL MICROBIOL 2022. [DOI: 10.2323/jgam.2022.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- William Kurdy
- Institute of Fundamental Medicine and Biology of Kazan (Volga-region) Federal University
| | - Galina Yakovleva
- Institute of Fundamental Medicine and Biology of Kazan (Volga-region) Federal University
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology of Kazan (Volga-region) Federal University
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3
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Li J, Boix E. Host Defence RNases as Antiviral Agents against Enveloped Single Stranded RNA Viruses. Virulence 2021; 12:444-469. [PMID: 33660566 PMCID: PMC7939569 DOI: 10.1080/21505594.2021.1871823] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/26/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023] Open
Abstract
Owing to the recent outbreak of Coronavirus Disease of 2019 (COVID-19), it is urgent to develop effective and safe drugs to treat the present pandemic and prevent other viral infections that might come in the future. Proteins from our own innate immune system can serve as ideal sources of novel drug candidates thanks to their safety and immune regulation versatility. Some host defense RNases equipped with antiviral activity have been reported over time. Here, we try to summarize the currently available information on human RNases that can target viral pathogens, with special focus on enveloped single-stranded RNA (ssRNA) viruses. Overall, host RNases can fight viruses by a combined multifaceted strategy, including the enzymatic target of the viral genome, recognition of virus unique patterns, immune modulation, control of stress granule formation, and induction of autophagy/apoptosis pathways. The review also includes a detailed description of representative enveloped ssRNA viruses and their strategies to interact with the host and evade immune recognition. For comparative purposes, we also provide an exhaustive revision of the currently approved or experimental antiviral drugs. Finally, we sum up the current perspectives of drug development to achieve successful eradication of viral infections.
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Affiliation(s)
- Jiarui Li
- Dpt. Of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma De Barcelona, Spain
| | - Ester Boix
- Dpt. Of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma De Barcelona, Spain
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Bagherani N, Smoller BR. Hypothesis: Designation of Liposomal Scavenger System for Fighting against 2019-nCoV. Infect Disord Drug Targets 2021; 22:e150621194093. [PMID: 34132188 DOI: 10.2174/1871526521666210615141036] [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: 12/04/2020] [Revised: 02/18/2021] [Accepted: 03/05/2021] [Indexed: 11/22/2022]
Abstract
2019 novel coronavirus (2019-nCoV), also known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) or COVID-19 virus, is a member of the family Coronaviridae, which is responsible for the current pandemic of disease COVID-19. It is the seventh member of the family Coronaviridae, which infects humans, after 229E, OC43, NL63, HKU1, SARS-CoV and Middle East respiratory syndrome coronavirus (MERS-CoV). Fever, dry cough and severe pneumonia are seen as common symptoms at the early stages of COVID-19. Some cases progress to acute respiratory stress syndrome, septic shock, organ failure, and death. The development of an effective treatment or vaccination for treating or preventing this lethal condition is an urgent need in order to fight this crisis. Up to now, some effective vaccines with different efficacy profiles have been introduced. Herein, we have theoretically designed a scavenger system for gathering 2019-nCoVs, breaking them, and re-introducing them to the immune system.
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Affiliation(s)
- Nooshin Bagherani
- Department of Molecular Medicine, School of Advanced Medical Science, Tehran University of Medical School, Tehran, Iran
| | - Bruce R Smoller
- Department of Pathology, Professor, Department of Dermatology, University of Rochester, School of Medicine and Dentistry, United States
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Abstract
The CD8+ T cell noncytotoxic antiviral response (CNAR) was discovered during studies of asymptomatic HIV-infected subjects more than 30 years ago. In contrast to CD8+ T cell cytotoxic lymphocyte (CTL) activity, CNAR suppresses HIV replication without target cell killing. This activity has characteristics of innate immunity: it acts on all retroviruses and thus is neither epitope specific nor HLA restricted. The HIV-associated CNAR does not affect other virus families. It is mediated, at least in part, by a CD8+ T cell antiviral factor (CAF) that blocks HIV transcription. A variety of assays used to measure CNAR/CAF and the effects on other retrovirus infections are described. Notably, CD8+ T cell noncytotoxic antiviral responses have now been observed with other virus families but are mediated by different cytokines. Characterizing the protein structure of CAF has been challenging despite many biologic, immunologic, and molecular studies. It represents a low-abundance protein that may be identified by future next-generation sequencing approaches. Since CNAR/CAF is a natural noncytotoxic activity, it could provide promising strategies for HIV/AIDS therapy, cure, and prevention.
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Affiliation(s)
- Maelig G Morvan
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | - Fernando C Teque
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
| | | | - Jay A Levy
- Division of Hematology/Oncology, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
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Anti-Influenza Activity of the Ribonuclease Binase: Cellular Targets Detected by Quantitative Proteomics. Int J Mol Sci 2020; 21:ijms21218294. [PMID: 33167434 PMCID: PMC7663932 DOI: 10.3390/ijms21218294] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Unpredictable influenza pandemics, annual epidemics, and sporadic poultry-to-human avian influenza virus infections with high morbidity and mortality rates dictate a need to develop new antiviral approaches. Targeting cellular pathways and processes is a promising antiviral strategy shown to be effective regardless of viral subtypes or viral evolution of drug-resistant variants. Proteomics-based searches provide a tool to reveal the druggable stages of the virus life cycle and to understand the putative antiviral mode of action of the drug(s). Ribonucleases (RNases) of different origins not only demonstrate antiviral effects that are mediated by the direct RNase action on viral and cellular RNAs but can also exert their impact by signal transduction modulation. To our knowledge, studies of the RNase-affected cell proteome have not yet been performed. To reveal cellular targets and explain the mechanisms underlying the antiviral effect employed by the small extra-cellular ribonuclease of Bacillus pumilus (binase) both in vitro and in vivo, qualitative shotgun and quantitative targeted proteomic analyses of the influenza A virus (IAV) H1N1pdm09-infected A549 cells upon binase treatment were performed. We compared proteomes of mock-treated, binase-treated, virus-infected, and virus-infected binase-treated cells to determine the proteins affected by IAV and/or binase. In general, IAV demonstrated a downregulating strategy towards cellular proteins, while binase had an upregulating effect. With the help of bioinformatics approaches, coregulated cellular protein sets were defined and assigned to their biological function; a possible interconnection with the progression of viral infection was conferred. Most of the proteins downregulated by IAV (e.g., AKR1B1, AKR1C1, CCL5, PFN1, RAN, S100A4, etc.) belong to the processes of cellular metabolism, response to stimulus, biological regulation, and cellular localization. Upregulated proteins upon the binase treatment (e.g., AKR1B10, CAP1, HNRNPA2B1, PFN1, PPIA, YWHAB, etc.) are united by the processes of biological regulation, cellular localization, and immune and metabolic processes. The antiviral activity of binase against IAV was expressed by the inversion of virus-induced proteomic changes, resulting in the inhibition of virus-associated processes, including nuclear ribonucleoprotein export (NCL, NPM1, Nup205, and Bax proteins involved) and cytoskeleton remodeling (RDX, PFN1, and TUBB) induced by IAV at the middle stage of single-cycle infection in A549 cells. Modulation of the immune response could be involved as well. Overall, it seems possible that binase exerts its antiviral effects in multiple ways.
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Shah Mahmud R, Efimova MA, Ulyanova V, Ravilov RK, Shuralev EA, Kolpakov A, Ilinskaya O. Bacillus pumilus ribonuclease rescues mice infected by double-stranded RNA-containing reovirus serotype 1. Virus Res 2020; 286:198086. [PMID: 32629086 DOI: 10.1016/j.virusres.2020.198086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/08/2020] [Accepted: 07/01/2020] [Indexed: 12/27/2022]
Abstract
Reoviruses (respiratory enteric orphan viruses) are nonenveloped viruses with segmented dsRNA genome. Viruses in the family Reoviridae are quite stable in the environment. Recently, they have been identified with various pathologies and physiologic dysfunctions in a wide range of organs and tissues, including the hepatobiliary system, the myocardium, lungs, and endocrine tissues. Although most cases of reovirus infection are mild or subclinical diseases, the prevention measures are currently needed, especially for young children suffering from dehydrating gastroenteritis. To inhibit viral replication, different RNases targeting viral RNA are proposed. Here, we first have shown that RNase from Bacillus pumilus (binase) acts as an antiviral agent at the level of the whole animal organism infected by Mammalian orthoreovirus 1 strain Lang (TL1). The results obtained on the mice model infected with 10 LD50 and 20 LD50 doses of reovirus indicate the restoration of mice physiological parameters under binase treatment at the dose of 50 μg/mouse. Thus, our research supports the relevance of binase as a promising antiviral agent that affects viral RNA.
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Affiliation(s)
- Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation.
| | - Marina A Efimova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation; Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation; Federal Center for Toxicological, Radiation and Biological Safety, Kazan, Russian Federation; Kazan State Medical Academy - Russian Medical Academy of Continuous Professional Education, Kazan, Russian Federation
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Rustam Kh Ravilov
- Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation
| | - Eduard A Shuralev
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation; Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation; Federal Center for Toxicological, Radiation and Biological Safety, Kazan, Russian Federation; Kazan State Medical Academy - Russian Medical Academy of Continuous Professional Education, Kazan, Russian Federation
| | - Aleksey Kolpakov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
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Feliciello I, Procino A. The pulmonary-proteoliposome as a new therapeutic approach for Coronaviruses. Hum Vaccin Immunother 2020; 16:2373. [PMID: 32401611 PMCID: PMC7232879 DOI: 10.1080/21645515.2020.1758534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We are proposing the use of pulmonary-proteoliposome as a new therapeutic approach for Coronaviruses. The designed strategy represents a potential treatment to reduce the overall viral load in the lungs and to help the immune system to successfully stave off the infection.
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Affiliation(s)
- Isidoro Feliciello
- Department of Clinical Medicine and Surgery, University of Naples Federico II , Naples, Italy
| | - Alfredo Procino
- Department of Clinical Medicine and Surgery, University of Naples Federico II , Naples, Italy
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Gotte G, Menegazzi M. Biological Activities of Secretory RNases: Focus on Their Oligomerization to Design Antitumor Drugs. Front Immunol 2019; 10:2626. [PMID: 31849926 PMCID: PMC6901985 DOI: 10.3389/fimmu.2019.02626] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/22/2019] [Indexed: 12/11/2022] Open
Abstract
Ribonucleases (RNases) are a large number of enzymes gathered into different bacterial or eukaryotic superfamilies. Bovine pancreatic RNase A, bovine seminal BS-RNase, human pancreatic RNase 1, angiogenin (RNase 5), and amphibian onconase belong to the pancreatic type superfamily, while binase and barnase are in the bacterial RNase N1/T1 family. In physiological conditions, most RNases secreted in the extracellular space counteract the undesired effects of extracellular RNAs and become protective against infections. Instead, if they enter the cell, RNases can digest intracellular RNAs, becoming cytotoxic and having advantageous effects against malignant cells. Their biological activities have been investigated either in vitro, toward a number of different cancer cell lines, or in some cases in vivo to test their potential therapeutic use. However, immunogenicity or other undesired effects have sometimes been associated with their action. Nevertheless, the use of RNases in therapy remains an appealing strategy against some still incurable tumors, such as mesothelioma, melanoma, or pancreatic cancer. The RNase inhibitor (RI) present inside almost all cells is the most efficacious sentry to counteract the ribonucleolytic action against intracellular RNAs because it forms a tight, irreversible and enzymatically inactive complex with many monomeric RNases. Therefore, dimerization or multimerization could represent a useful strategy for RNases to exert a remarkable cytotoxic activity by evading the interaction with RI by steric hindrance. Indeed, the majority of the mentioned RNases can hetero-dimerize with antibody derivatives, or even homo-dimerize or multimerize, spontaneously or artificially. This can occur through weak interactions or upon introducing covalent bonds. Immuno-RNases, in particular, are fusion proteins representing promising drugs by combining high target specificity with easy delivery in tumors. The results concerning the biological features of many RNases reported in the literature are described and discussed in this review. Furthermore, the activities displayed by some RNases forming oligomeric complexes, the mechanisms driving toward these supramolecular structures, and the biological rebounds connected are analyzed. These aspects are offered with the perspective to suggest possible efficacious therapeutic applications for RNases oligomeric derivatives that could contemporarily lack, or strongly reduce, immunogenicity and other undesired side-effects.
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Affiliation(s)
- Giovanni Gotte
- Biological Chemistry Section, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Marta Menegazzi
- Biological Chemistry Section, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Burkhanova GF, Sorokan AV, Cherepanova EA, Sarvarova ER, Khairullin RM, Maksimov IV. Endophytic Bacillus bacteria with RNase activity in the resistance of potato plants to viruses. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.561] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Viral diseases annually cause significant crop losses and significantly reduce the quality of products, including potatoes, some of the most important crops. Currently, viruses cannot be controlled with chemical pesticides, since known antiviral compounds are teratogenic and hazardous to people’s health. Biocontrol agents based on endophytic microorganisms may be an alternative to them. Many strains of Bacillus produce ribonucleases (RNases). Our laboratory possesses a collection of bacteria that produce various metabolites and have RNase activity. The results showed that the inoculation of potato with B. subtilis 26D and B. thuringiensis increased the grain yield by 32–43 %. In addition, the treatment of potato plants with Bacillus spp. significantly reduced the infection of potato plants with virus M. The prevalence of the disease in potato plants was significantly reduced from 60 % in the control to 18 % (B. subtillis 26D) and 25–33 % (B. thuringiensis) in the inoculated plants. Similarly, the infection index decreased from 14 in the control to 1 in the inoculated plants. The further study of molecular mechanisms related to bacterial induction of plant defense reactions in response to viral infections will lead to a better understanding of stress resistance problems. The endophytic microorganisms studied in this report may become the basis for the creation of biological agents for plant protection.
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Affiliation(s)
- G. F. Burkhanova
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - A. V. Sorokan
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - E. A. Cherepanova
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - E. R. Sarvarova
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - R. M. Khairullin
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - I. V. Maksimov
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
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Ghosh S, Alam S, Rathore AS, Khare SK. Stability of Therapeutic Enzymes: Challenges and Recent Advances. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1148:131-150. [DOI: 10.1007/978-981-13-7709-9_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Shah Mahmud R, Mostafa A, Müller C, Kanrai P, Ulyanova V, Sokurenko Y, Dzieciolowski J, Kuznetsova I, Ilinskaya O, Pleschka S. Bacterial ribonuclease binase exerts an intra-cellular anti-viral mode of action targeting viral RNAs in influenza a virus-infected MDCK-II cells. Virol J 2018; 15:5. [PMID: 29304825 PMCID: PMC5756404 DOI: 10.1186/s12985-017-0915-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/19/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Influenza is a severe contagious disease especially in children, elderly and immunocompromised patients. Beside vaccination, the discovery of new anti-viral agents represents an important strategy to encounter seasonal and pandemic influenza A virus (IAV) strains. The bacterial extra-cellular ribonuclease binase is a well-studied RNase from Bacillus pumilus. Treatment with binase was shown to improve survival of laboratory animals infected with different RNA viruses. Although binase reduced IAV titer in vitro and in vivo, the mode of action (MOA) of binase against IAV at the molecular level has yet not been studied in depth and remains elusive. METHODS To analyze whether binase impairs virus replication by direct interaction with the viral particle we applied a hemagglutination inhibition assay and monitored the integrity of the viral RNA within the virus particle by RT-PCR. Furthermore, we used Western blot and confocal microscopy analysis to study whether binase can internalize into MDCK-II cells. By primer extension we examined the effect of binase on the integrity of viral RNAs within the cells and using a mini-genome system we explored the effect of binase on the viral expression. RESULTS We show that (i) binase does not to attack IAV particle-protected viral RNA, (ii) internalized binase could be detected within the cytosol of MDCK-II cells and that (iii) binase impairs IAV replication by specifically degrading viral RNA species within the infected MDCK-II cells without obvious effect on cellular mRNAs. CONCLUSION Our data provide novel evidence suggesting that binase is a potential anti-viral agent with specific intra-cellular MOA.
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Affiliation(s)
- Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Ahmed Mostafa
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Center of Scientific Excellence for Influenza Viruses, National Research Center (NRC), El-Buhouth Street 87, 12311 Dokki, Cairo, Egypt
| | - Christin Müller
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
| | - Pumaree Kanrai
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Present address: Department I - Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, 61231, Bad Nauheim, Germany
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Yulia Sokurenko
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Julia Dzieciolowski
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Present address: Department of Biochemistry and Molecular Biology, Institute of Nutritional Science, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Irina Kuznetsova
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Stephan Pleschka
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany.
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Ilinskaya ON, Ulyanova VV, Yarullina DR, Gataullin IG. Secretome of Intestinal Bacilli: A Natural Guard against Pathologies. Front Microbiol 2017; 8:1666. [PMID: 28919884 PMCID: PMC5586196 DOI: 10.3389/fmicb.2017.01666] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 08/17/2017] [Indexed: 12/12/2022] Open
Abstract
Current studies of human gut microbiome usually do not consider the special functional role of transient microbiota, although some of its members remain in the host for a long time and produce broad spectrum of biologically active substances. Getting into the gastrointestinal tract (GIT) with food, water and probiotic preparations, two representatives of Bacilli class, genera Bacillus and Lactobacillus, colonize epithelium blurring the boundaries between resident and transient microbiota. Despite their minor proportion in the microbiome composition, these bacteria can significantly affect both the intestinal microbiota and the entire body thanks to a wide range of secreted compounds. Recently, insufficiency and limitations of pure genome-based analysis of gut microbiota became known. Thus, the need for intense functional studies is evident. This review aims to characterize the Bacillus and Lactobacillus in GIT, as well as the functional roles of the components released by these members of microbial intestinal community. Complex of their secreted compounds is referred by us as the "bacillary secretome." The composition of the bacillary secretome, its biological effects in GIT and role in counteraction to infectious diseases and oncological pathologies in human organism is the subject of the review.
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Affiliation(s)
| | - Vera V. Ulyanova
- Department of Microbiology, Kazan Federal UniversityKazan, Russia
| | | | - Ilgiz G. Gataullin
- Department of Surgery and Oncology, Regional Clinical Cancer CenterKazan, Russia
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