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Hegde S, Khanipov K, Hornett EA, Nilyanimit P, Pimenova M, Saldaña MA, de Bekker C, Golovko G, Hughes GL. Interkingdom interactions shape the fungal microbiome of mosquitoes. Anim Microbiome 2024; 6:11. [PMID: 38454530 PMCID: PMC10921588 DOI: 10.1186/s42523-024-00298-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 02/23/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND The mosquito microbiome is an important modulator of vector competence and vectoral capacity. Unlike the extensively studied bacterial microbiome, fungal communities in the mosquito microbiome (the mycobiome) remain largely unexplored. To work towards getting an improved understanding of the fungi associated with mosquitoes, we sequenced the mycobiome of three field-collected and laboratory-reared mosquito species (Aedes albopictus, Aedes aegypti, and Culex quinquefasciatus). RESULTS Our analysis showed both environment and host species were contributing to the diversity of the fungal microbiome of mosquitoes. When comparing species, Ae. albopictus possessed a higher number of diverse fungal taxa than Cx. quinquefasciatus, while strikingly less than 1% of reads from Ae. aegypti samples were fungal. Fungal reads from Ae. aegypti were < 1% even after inhibiting host amplification using a PNA blocker, indicating that this species lacked a significant fungal microbiome that was amplified using this sequencing approach. Using a mono-association mosquito infection model, we confirmed that mosquito-derived fungal isolates colonize Aedes mosquitoes and support growth and development at comparable rates to their bacterial counterparts. Strikingly, native bacterial taxa isolated from mosquitoes impeded the colonization of symbiotic fungi in Ae. aegypti suggesting interkingdom interactions shape fungal microbiome communities. CONCLUSION Collectively, this study adds to our understanding of the fungal microbiome of different mosquito species, that these fungal microbes support growth and development, and highlights that microbial interactions underpin fungal colonization of these medically relevent species.
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Affiliation(s)
- Shivanand Hegde
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK.
- School of Life Sciences, Keele University, Newcastle, UK.
| | - Kamil Khanipov
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Emily A Hornett
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK
- Institute of Infection, Veterinary and Ecological Sciences, Department of Evolution, Ecology and Behaviour, University of Liverpool, Liverpool, UK
| | - Pornjarim Nilyanimit
- Center of Excellence in Clinical Virology, Faculty of Medicine , Chulalongkorn University, Bangkok, Thailand
| | - Maria Pimenova
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Miguel A Saldaña
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Charissa de Bekker
- Microbiology, Department of Biology, Utrecht University, 3584 CH, Utrecht, The Netherlands
| | - George Golovko
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, USA
| | - Grant L Hughes
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK.
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Kozlova EV, Hegde S, Roundy CM, Golovko G, Saldaña MA, Hart CE, Anderson ER, Hornett EA, Khanipov K, Popov VL, Pimenova M, Zhou Y, Fovanov Y, Weaver SC, Routh AL, Heinz E, Hughes GL. Microbial interactions in the mosquito gut determine Serratia colonization and blood-feeding propensity. ISME J 2020; 15:93-108. [PMID: 32895494 PMCID: PMC7852612 DOI: 10.1038/s41396-020-00763-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/05/2020] [Accepted: 08/25/2020] [Indexed: 12/14/2022]
Abstract
How microbe–microbe interactions dictate microbial complexity in the mosquito gut is unclear. Previously we found that, Serratia, a gut symbiont that alters vector competence and is being considered for vector control, poorly colonized Aedes aegypti yet was abundant in Culex quinquefasciatus reared under identical conditions. To investigate the incompatibility between Serratia and Ae. aegypti, we characterized two distinct strains of Serratia marcescens from Cx. quinquefasciatus and examined their ability to infect Ae. aegypti. Both Serratia strains poorly infected Ae. aegypti, but when microbiome homeostasis was disrupted, the prevalence and titers of Serratia were similar to the infection in its native host. Examination of multiple genetically diverse Ae. aegypti lines found microbial interference to S. marcescens was commonplace, however, one line of Ae. aegypti was susceptible to infection. Microbiome analysis of resistant and susceptible lines indicated an inverse correlation between Enterobacteriaceae bacteria and Serratia, and experimental co-infections in a gnotobiotic system recapitulated the interference phenotype. Furthermore, we observed an effect on host behavior; Serratia exposure to Ae. aegypti disrupted their feeding behavior, and this phenotype was also reliant on interactions with their native microbiota. Our work highlights the complexity of host–microbe interactions and provides evidence that microbial interactions influence mosquito behavior.
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Affiliation(s)
- Elena V Kozlova
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Shivanand Hegde
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Christopher M Roundy
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - George Golovko
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Miguel A Saldaña
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA.,Department of Paediatrics and Tropical Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Charles E Hart
- The Institute for Translational Science, University of Texas Medical Branch, Galveston, TX, USA.,Institute for Global Health and Translational Science and SUNY Center for Environmental Health and Medicine, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Enyia R Anderson
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Emily A Hornett
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK.,Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Kamil Khanipov
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Vsevolod L Popov
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, USA
| | - Maria Pimenova
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yiyang Zhou
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yuriy Fovanov
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Scott C Weaver
- World Reference Center for Emerging Viruses and Arboviruses, Institute for Human Infections and Immunity, and Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, USA
| | - Andrew L Routh
- Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - Eva Heinz
- Departments of Vector Biology and Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Grant L Hughes
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool, UK.
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Yammine L, Kosten TR, Pimenova M, Schmitz JM. Cigarette smoking, type 2 diabetes mellitus, and glucagon-like peptide-1 receptor agonists as a potential treatment for smokers with diabetes: An integrative review. Diabetes Res Clin Pract 2019; 149:78-88. [PMID: 30735771 DOI: 10.1016/j.diabres.2019.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/09/2019] [Accepted: 01/30/2019] [Indexed: 01/26/2023]
Abstract
Tobacco use disorder (TUD), in particular cigarette smoking, contributes significantly to the macro- and micro-vascular complications of type 2 diabetes mellitus (DM). Persons with DM who regularly use tobacco products are twice as likely to experience mortality and negative health outcomes. Despite these risks, TUD remains prevalent in persons with DM. The objective of this integrative review is to summarize the relationship between TUD and DM based on epidemiological and preclinical biological evidence. We conclude with a review of the literature on the glucagon-like peptide-1 (GLP-1) as a potential treatment target for addressing comorbid TUD in smokers with DM.
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Affiliation(s)
- Luba Yammine
- University of Texas Health Science Center at Houston, Houston, TX, United States.
| | | | - Maria Pimenova
- University of Texas Medical Branch, Galveston, TX, United States
| | - Joy M Schmitz
- University of Texas Health Science Center at Houston, Houston, TX, United States
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Jeffries CL, Lawrence GG, Golovko G, Kristan M, Orsborne J, Spence K, Hurn E, Bandibabone J, Tantely LM, Raharimalala FN, Keita K, Camara D, Barry Y, Wat'senga F, Manzambi EZ, Afrane YA, Mohammed AR, Abeku TA, Hedge S, Khanipov K, Pimenova M, Fofanov Y, Boyer S, Irish SR, Hughes GL, Walker T. Novel Wolbachia strains in Anopheles malaria vectors from Sub-Saharan Africa. Wellcome Open Res 2018; 3:113. [PMID: 30483601 PMCID: PMC6234743 DOI: 10.12688/wellcomeopenres.14765.2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2018] [Indexed: 12/31/2022] Open
Abstract
Background: Wolbachia, a common insect endosymbiotic bacterium that can influence pathogen transmission and manipulate host reproduction, has historically been considered absent from the Anopheles (An.) genera, but has recently been found in An. gambiae s.l. populations in West Africa. As there are numerous Anopheles species that have the capacity to transmit malaria, we analysed a range of species across five malaria endemic countries to determine Wolbachia prevalence rates, characterise novel Wolbachia strains and determine any correlation between the presence of Plasmodium, Wolbachia and the competing bacterium Asaia. Methods: Anopheles adult mosquitoes were collected from five malaria-endemic countries: Guinea, Democratic Republic of the Congo (DRC), Ghana, Uganda and Madagascar, between 2013 and 2017. Molecular analysis was undertaken using quantitative PCR, Sanger sequencing, Wolbachia multilocus sequence typing (MLST) and high-throughput amplicon sequencing of the bacterial 16S rRNA gene. Results: Novel Wolbachia strains were discovered in five species: An. coluzzii, An. gambiae s.s., An. arabiensis, An. moucheti and An. species A, increasing the number of Anopheles species known to be naturally infected. Variable prevalence rates in different locations were observed and novel strains were phylogenetically diverse, clustering with Wolbachia supergroup B strains. We also provide evidence for resident strain variants within An. species A. Wolbachia is the dominant member of the microbiome in An. moucheti and An. species A but present at lower densities in An. coluzzii. Interestingly, no evidence of Wolbachia/Asaia co-infections was seen and Asaia infection densities were shown to be variable and location dependent. Conclusions: The important discovery of novel Wolbachia strains in Anopheles provides greater insight into the prevalence of resident Wolbachia strains in diverse malaria vectors. Novel Wolbachia strains (particularly high-density strains) are ideal candidate strains for transinfection to create stable infections in other Anopheles mosquito species, which could be used for population replacement or suppression control strategies.
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Affiliation(s)
- Claire L Jeffries
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Gena G Lawrence
- Entomology Branch, Division of Parasitic Diseases and Malaria, Center for Global Health, Centers for Disease Control and Prevention, Atlanta, Georgia, 30033, USA
| | - George Golovko
- Department of Pharmacology and Toxicology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Mojca Kristan
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - James Orsborne
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Kirstin Spence
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Eliot Hurn
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
| | - Janvier Bandibabone
- Laboratoire d'entomologie médicale et parasitologie, Centre de Recherche en Sciences Naturelles (CRSN/LWIRO), Sud-Kivu, Congo, Democratic Republic
| | - Luciano M Tantely
- Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Fara N Raharimalala
- Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Kalil Keita
- Nationale de Lutte contre le Paludisme, Ministere de la Sante, Conakry, Guinea
| | - Denka Camara
- Nationale de Lutte contre le Paludisme, Ministere de la Sante, Conakry, Guinea
| | - Yaya Barry
- Nationale de Lutte contre le Paludisme, Ministere de la Sante, Conakry, Guinea
| | - Francis Wat'senga
- National Institute of Biomedical Research, Kinshasa, Congo, Democratic Republic
| | - Emile Z Manzambi
- National Institute of Biomedical Research, Kinshasa, Congo, Democratic Republic
| | - Yaw A Afrane
- Department of Medical Microbiology, University of Ghana, Accra, Ghana
| | - Abdul R Mohammed
- Department of Medical Microbiology, University of Ghana, Accra, Ghana
| | | | - Shivanand Hedge
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Kamil Khanipov
- Department of Pharmacology and Toxicology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Maria Pimenova
- Department of Pharmacology and Toxicology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Yuriy Fofanov
- Department of Pharmacology and Toxicology, University of Texas Medical Branch at Galveston, Galveston, Texas, USA
| | - Sebastien Boyer
- Unité d'Entomologie Médicale, Institut Pasteur de Madagascar, Antananarivo, Madagascar
| | - Seth R Irish
- The US President's Malaria Initiative and Entomology Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, 30329-4027, USA
| | - Grant L Hughes
- Department of Pathology, Institute for Human Infections and Immunity, Center for Tropical Diseases, Center for Biodefense and Emerging Infectious Disease, University of Texas Medical Branch, Galveston, Texas, USA
| | - Thomas Walker
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, UK
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5
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Jeffries CL, Lawrence GG, Golovko G, Kristan M, Orsborne J, Spence K, Hurn E, Bandibabone J, Tantely LM, Raharimalala FN, Keita K, Camara D, Barry Y, Wat’senga F, Manzambi EZ, Afrane YA, Mohammed AR, Abeku TA, Hedge S, Khanipov K, Pimenova M, Fofanov Y, Boyer S, Irish SR, Hughes GL, Walker T. Novel Wolbachia strains in Anopheles malaria vectors from Sub-Saharan Africa. Wellcome Open Res 2018; 3:113. [DOI: 10.12688/wellcomeopenres.14765.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2018] [Indexed: 01/09/2023] Open
Abstract
Background: Wolbachia, a common insect endosymbiotic bacterium that can influence pathogen transmission and manipulate host reproduction, has historically been considered absent from the Anopheles (An.) genera, but has recently been found in An. gambiae s.l. populations. As there are numerous Anopheles species that have the capacity to transmit malaria, we analysed a range of species to determine Wolbachia prevalence rates, characterise novel Wolbachia strains and determine any correlation between the presence of Plasmodium, Wolbachia and the competing endosymbiotic bacterium Asaia. Methods: Anopheles adult mosquitoes were collected from five malaria-endemic countries: Guinea, Democratic Republic of the Congo (DRC), Ghana, Uganda and Madagascar, between 2013 and 2017. Molecular analysis of samples was undertaken using quantitative PCR, Sanger sequencing, Wolbachia multilocus sequence typing (MLST) and high-throughput amplicon sequencing of the bacterial 16S rRNA gene. Results: Novel Wolbachia strains were discovered in five species: An. coluzzii, An. gambiae s.s., An. arabiensis, An. moucheti and An. species ‘A’, increasing the number of Anopheles species known to be naturally infected. Variable prevalence rates in different locations were observed and novel strains were phylogenetically diverse, clustering with Wolbachia supergroup B strains. We also provide evidence for resident strain variants within An. species ‘A’. Wolbachia is the dominant member of the microbiome in An. moucheti and An. species ‘A’, but present at lower densities in An. coluzzii. Interestingly, no evidence of Wolbachia/Asaia co-infections was seen and Asaia infection densities were also shown to be variable and location dependent. Conclusions: The important discovery of novel Wolbachia strains in Anopheles provides greater insight into the prevalence of resident Wolbachia strains in diverse malaria vectors. Novel Wolbachia strains (particularly high-density strains) are ideal candidate strains for transinfection to create stable infections in other Anopheles mosquito species, which could be used for population replacement or suppression control strategies.
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Hegde S, Khanipov K, Albayrak L, Golovko G, Pimenova M, Saldaña MA, Rojas MM, Hornett EA, Motl GC, Fredregill CL, Dennett JA, Debboun M, Fofanov Y, Hughes GL. Microbiome Interaction Networks and Community Structure From Laboratory-Reared and Field-Collected Aedes aegypti, Aedes albopictus, and Culex quinquefasciatus Mosquito Vectors. Front Microbiol 2018; 9:2160. [PMID: 30250462 PMCID: PMC6140713 DOI: 10.3389/fmicb.2018.02160] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 08/23/2018] [Indexed: 12/31/2022] Open
Abstract
Microbial interactions are an underappreciated force in shaping insect microbiome communities. Although pairwise patterns of symbiont interactions have been identified, we have a poor understanding regarding the scale and the nature of co-occurrence and co-exclusion interactions within the microbiome. To characterize these patterns in mosquitoes, we sequenced the bacterial microbiome of Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus caught in the field or reared in the laboratory and used these data to generate interaction networks. For collections, we used traps that attracted host-seeking or ovipositing female mosquitoes to determine how physiological state affects the microbiome under field conditions. Interestingly, we saw few differences in species richness or microbiome community structure in mosquitoes caught in either trap. Co-occurrence and co-exclusion analysis identified 116 pairwise interactions substantially increasing the list of bacterial interactions observed in mosquitoes. Networks generated from the microbiome of Ae. aegypti often included highly interconnected hub bacteria. There were several instances where co-occurring bacteria co-excluded a third taxa, suggesting the existence of tripartite relationships. Several associations were observed in multiple species or in field and laboratory-reared mosquitoes indicating these associations are robust and not influenced by environmental or host factors. To demonstrate that microbial interactions can influence colonization of the host, we administered symbionts to Ae. aegypti larvae that either possessed or lacked their resident microbiota. We found that the presence of resident microbiota can inhibit colonization of particular bacterial taxa. Our results highlight that microbial interactions in mosquitoes are complex and influence microbiome composition.
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Affiliation(s)
- Shivanand Hegde
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States
| | - Kamil Khanipov
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, United States
- Department of Computer Science, University of Houston, Houston, TX, United States
| | - Levent Albayrak
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - George Golovko
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - Maria Pimenova
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - Miguel A. Saldaña
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, United States
| | - Mark M. Rojas
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - Emily A. Hornett
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
| | - Greg C. Motl
- Harris County Public Health, Mosquito & Vector Control Division, Houston, TX, United States
| | - Chris L. Fredregill
- Harris County Public Health, Mosquito & Vector Control Division, Houston, TX, United States
| | - James A. Dennett
- Harris County Public Health, Mosquito & Vector Control Division, Houston, TX, United States
| | - Mustapha Debboun
- Harris County Public Health, Mosquito & Vector Control Division, Houston, TX, United States
| | - Yuriy Fofanov
- Department of Pharmacology and Toxicology, Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States
| | - Grant L. Hughes
- Department of Pathology, Institute for Human Infections and Immunity, Center for Tropical Diseases, Center for Biodefense and Emerging Infectious Disease, University of Texas Medical Branch, Galveston, TX, United States
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Uribe G, Rourke R, Villeger R, Golovko G, Khanipov K, Liu Z, Pimenova M, Fofanov Y, Zhou J, Brasier AR, Pinchuk IV. Abstract 5065: Cancer derived Escherichia coli induces tumor-promoting inflammatory cytokine IL-6 in cancer associated fibroblasts (CAFs) in a NF-κB/BRD4 dependent manner. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-5065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Chronic inflammatory responses within the colonic environment are critical to colorectal cancer (CRC) tumor development. While the exact causes of CRC development are unknown, recent data suggest that dysbiosis in the colonic microbiome results in the overgrowth of bacteria from Enterebacteriaceae, Fusobacteriaceae and Bacteroidaceae taxonomic families, contributing to CRC development. Among bacteria of the Enterebacteriaceae family, adherent invasive Esherichia coli has been shown to promote tumor cell growth via production of colibactin. However, the contribution of E.coli to the tumor promoting inflammatory microenvironment (TME) during sporadic CRC development remains unknown. Cancer associated fibroblasts (CAFs) are a major component of TME and contribute to tumor-promoting inflammatory responses via NF-κB dependent production of IL-6. Herein we investigate the effect of E. coli on CAFs. We hypothesize that stimulation of CAFs by cancer derived E.coli is a key processes in supporting tumor-promoting inflammation in CRC. Methods: Bacterial DNA was extracted from tumor and adjacent normal tissue of 28 CRC patients. High throughput sequencing was done using metabarcoding of 16S rDNA for bacteria and analyzed using CLC Genomics Workbench 8.0.5 Microbial Genomics Module, SILVA v119 database for 16S. E.coli PS092717 strain, isolated from CRC tumor site, was used in co-culture experiments. Real time RT-PCR and multiplex cytokine array was used to analyze fibroblasts gene expression and secretion, respectively. Results: We observed a reduction in microbial diversity in tumor vs adjacent normal tissue, with an increased prevalence of Fusobacteria, and Enterobactereacea, but not Bacteroidacea. We then tested the effect of E.coli PS092717 on colonic primary normal fibroblasts and CAFs. Exposure of N-CMFs to E.coli for 24 h only moderately increased IL-6, while CAF responded with a greater increase in IL-6 production. Analysis of the signaling mechanism demonstrated that this process was NF-κB dependent, and was abrogated in the presence of NF-kB specific inhibitor, triptolide (20 ng/mL). Bromodomain containing protein 4 (Brd4) is an epigenetic regulator that can recruit canonical NF-κB transcription factor RelA. Therefore, we analyzed its involvement in the above processes. NF-κB mediated increase in IL-6 expression and secretion induced by E.coli PS092717 was strongly reduced in CAFs than N-CMFs in the presence of BRD4 specific inhibitor (1 µM ZL0590). A similar observation was made when a major components of the E.coli cell wall, lipopolysaccharide (LPS), was used. Conclusion Taken together our data suggests that, E.coli derived from cancer tissue and its cell wall component LPS can contribute to the tumor promoting inflammation via stimulation of IL-6 production by CAFs and this process is BRD4/NF-κB-dependent.
Citation Format: Gabriela Uribe, Russel Rourke, Romain Villeger, George Golovko, Kamil Khanipov, Zhiqing Liu, Maria Pimenova, Yuriy Fofanov, Jia Zhou, Allen R. Brasier, Irina V. Pinchuk. Cancer derived Escherichia coli induces tumor-promoting inflammatory cytokine IL-6 in cancer associated fibroblasts (CAFs) in a NF-κB/BRD4 dependent manner [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 5065.
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Affiliation(s)
| | | | | | | | | | - Zhiqing Liu
- University of Texas Medical Branch, Galveston, TX
| | | | | | - Jia Zhou
- University of Texas Medical Branch, Galveston, TX
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8
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Chonmaitree T, Jennings K, Golovko G, Khanipov K, Pimenova M, Patel JA, McCormick DP, Loeffelholz MJ, Fofanov Y. Nasopharyngeal microbiota in infants and changes during viral upper respiratory tract infection and acute otitis media. PLoS One 2017; 12:e0180630. [PMID: 28708872 PMCID: PMC5510840 DOI: 10.1371/journal.pone.0180630] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/18/2017] [Indexed: 01/21/2023] Open
Abstract
Background Interferences between pathogenic bacteria and specific commensals are known. We determined the interactions between nasopharyngeal microbial pathogens and commensals during viral upper respiratory tract infection (URI) and acute otitis media (AOM) in infants. Methods We analyzed 971 specimens collected monthly and during URI and AOM episodes from 139 infants. The 16S rRNA V4 gene regions were sequenced on the Illumina MiSeq platform. Results Among the high abundant genus-level nasopharyngeal microbiota were Moraxella, Haemophilus, and Streptococcus (3 otopathogen genera), Corynebacterium, Dolosigranulum, Staphylococcus, Acinetobacter, Pseudomonas, and Bifidobacterium. Bacterial diversity was lower in culture-positive samples for Streptococcus pneumoniae, and Haemophilus influenzae, compared to cultured-negative samples. URI frequencies were positively associated with increasing trend in otopathogen colonization. AOM frequencies were associated with decreasing trend in Micrococcus colonization. During URI and AOM, there were increases in abundance of otopathogen genera and decreases in Pseudomonas, Myroides, Yersinia, and Sphingomonas. Otopathogen abundance was increased during symptomatic viral infection, but not during asymptomatic infection. The risk for AOM complicating URI was reduced by increased abundance of Staphylococcus and Sphingobium. Conclusion Otopathogen genera played the key roles in URI and AOM occurrences. Staphylococcus counteracts otopathogens thus Staphylococcal colonization may be beneficial, rather than harmful. While Sphingobium may play a role in preventing AOM complicating URI, the commonly used probiotic Bifidobacterium did not play a significant role during URI or AOM. The role of less common commensals in counteracting the deleterious effects of otopathogens requires further studies.
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Affiliation(s)
- Tasnee Chonmaitree
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States of America
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States of America
- * E-mail:
| | - Kristofer Jennings
- Department of Preventive Medicine and Community Health, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Georgiy Golovko
- Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Kamil Khanipov
- Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Maria Pimenova
- Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Janak A. Patel
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States of America
| | - David P. McCormick
- Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Michael J. Loeffelholz
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Yuriy Fofanov
- Sealy Center for Structural Biology, University of Texas Medical Branch, Galveston, TX, United States of America
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Albayrak L, Khanipov K, Pimenova M, Golovko G, Rojas M, Pavlidis I, Chumakov S, Aguilar G, Chávez A, Widger WR, Fofanov Y. The ability of human nuclear DNA to cause false positive low-abundance heteroplasmy calls varies across the mitochondrial genome. BMC Genomics 2016; 17:1017. [PMID: 27955616 PMCID: PMC5153897 DOI: 10.1186/s12864-016-3375-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 12/05/2016] [Indexed: 02/03/2023] Open
Abstract
Background Low-abundance mutations in mitochondrial populations (mutations with minor allele frequency ≤ 1%), are associated with cancer, aging, and neurodegenerative disorders. While recent progress in high-throughput sequencing technology has significantly improved the heteroplasmy identification process, the ability of this technology to detect low-abundance mutations can be affected by the presence of similar sequences originating from nuclear DNA (nDNA). To determine to what extent nDNA can cause false positive low-abundance heteroplasmy calls, we have identified mitochondrial locations of all subsequences that are common or similar (one mismatch allowed) between nDNA and mitochondrial DNA (mtDNA). Results Performed analysis revealed up to a 25-fold variation in the lengths of longest common and longest similar (one mismatch allowed) subsequences across the mitochondrial genome. The size of the longest subsequences shared between nDNA and mtDNA in several regions of the mitochondrial genome were found to be as low as 11 bases, which not only allows using these regions to design new, very specific PCR primers, but also supports the hypothesis of the non-random introduction of mtDNA into the human nuclear DNA. Conclusion Analysis of the mitochondrial locations of the subsequences shared between nDNA and mtDNA suggested that even very short (36 bases) single-end sequencing reads can be used to identify low-abundance variation in 20.4% of the mitochondrial genome. For longer (76 and 150 bases) reads, the proportion of the mitochondrial genome where nDNA presence will not interfere found to be 44.5 and 67.9%, when low-abundance mutations at 100% of locations can be identified using 417 bases long single reads. This observation suggests that the analysis of low-abundance variations in mitochondria population can be extended to a variety of large data collections such as NCBI Sequence Read Archive, European Nucleotide Archive, The Cancer Genome Atlas, and International Cancer Genome Consortium. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3375-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Levent Albayrak
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA.,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA.,Department of Computer Science, University of Houston, Houston, TX, USA
| | - Kamil Khanipov
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA.,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA.,Department of Computer Science, University of Houston, Houston, TX, USA
| | - Maria Pimenova
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA.,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
| | - George Golovko
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA.,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
| | - Mark Rojas
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA.,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA
| | - Ioannis Pavlidis
- Department of Computer Science, University of Houston, Houston, TX, USA
| | - Sergei Chumakov
- Department of Physics, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Gerardo Aguilar
- Department of Physics, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Arturo Chávez
- Department of Physics, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - William R Widger
- Department of Biology and Biochemistry, University of Houston, Houston, TX, USA
| | - Yuriy Fofanov
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555-0144, USA. .,Sealy Center for Structural Biology and Molecular Biophysics, University of Texas Medical Branch, Galveston, TX, USA.
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Pimenova M, Kokhno A, Domracheva E, Drize N, Manakova T, Konnova M, Maltseva Y, Shishigina L, Parovichnikova E, Savchenko V. P-254 Chromosomal analysis of hematopoietic and stromal progenitor cells in patients with myelodysplastic syndrome (MDS). Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70301-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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