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Barbosa MS, Marques LM, Timenetsky J, Rosengarten R, Spergser J, Chopra-Dewasthaly R. Host cell interactions of novel antigenic membrane proteins of Mycoplasma agalactiae. BMC Microbiol 2022; 22:93. [PMID: 35395771 PMCID: PMC8991494 DOI: 10.1186/s12866-022-02512-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/30/2022] [Indexed: 11/30/2022] Open
Abstract
Background Mycoplasma agalactiae is the main etiological agent of Contagious Agalactia syndrome of small ruminants notifiable to the World Organization for Animal Health. Despite serious economic losses, successful vaccines are unavailable, largely because its colonization and invasion factors are not well understood. This study evaluates the role of two recently identified antigenic proteins (MAG_1560, MAG_6130) and the cytadhesin P40 in pathogenicity related phenotypes. Results Adhesion to HeLa and sheep primary mammary stromal cells (MSC) was evaluated using ELISA, as well as in vitro adhesion assays on monolayer cell cultures. The results demonstrated MAG_6130 as a novel adhesin of M. agalactiae whose capacity to adhere to eukaryotic cells was significantly reduced by specific antiserum. Additionally, these proteins exhibited significant binding to plasminogen and extracellular matrix (ECM) proteins like lactoferrin, fibrinogen and fibronectin, a feature that could potentially support the pathogen in host colonization, tissue migration and immune evasion. Furthermore, these proteins played a detrimental role on the host cell proliferation and viability and were observed to activate pro-apoptotic genes indicating their involvement in cell death when eukaryotic cells were infected with M. agalactiae. Conclusions To summarize, the hypothetical protein corresponding to MAG_6130 has not only been assigned novel adhesion functions but together with P40 it is demonstrated for the first time to bind to lactoferrin and ECM proteins thereby playing important roles in host colonization and pathogenicity. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02512-2.
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Affiliation(s)
- Maysa Santos Barbosa
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, A-1210, Austria.,Present Address: Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Lucas Miranda Marques
- Present Address: Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil. .,Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista, Brazil.
| | - Jorge Timenetsky
- Present Address: Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Renate Rosengarten
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, A-1210, Austria
| | - Joachim Spergser
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, A-1210, Austria
| | - Rohini Chopra-Dewasthaly
- Institute of Microbiology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, A-1210, Austria.
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Yang J, Liu Y, Lin C, Yan R, Li Z, Chen Q, Zhang H, Xu H, Chen X, Chen Y, Guo A, Hu C. Regularity of Toll-Like Receptors in Bovine Mammary Epithelial Cells Induced by Mycoplasma bovis. Front Vet Sci 2022; 9:846700. [PMID: 35464378 PMCID: PMC9021453 DOI: 10.3389/fvets.2022.846700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/15/2022] [Indexed: 11/13/2022] Open
Abstract
Mastitis is one of the most common and significant infectious diseases in dairy cattle and is responsible for significant financial losses for the dairy industry globally. An important pathogen of bovine mastitis, Mycoplasma bovis (M. bovis) has a high infection rate, requires a long course of treatment, and is difficult to cure. Bovine mammary epithelial cells (BMECs) are the first line of defense of the mammary gland, and their natural immune system plays a critical role in resisting M. bovis infection. This study aimed to explore and demonstrate the regularity of Toll-like receptors (TLRs) activation during M. bovis infection and their function during M. bovis mastitis. An in vitro model of M. bovis-induced mastitis showed that the expression of IL-6, IL-8, and TNF-α increased significantly following infection. M. bovis infection also upregulated the expression of TLR1/2/6 on the cell membrane and TLR3/9 in the cytoplasm. There is a crosstalk effect between TLR1–TLR2 and TLR2–TLR6. Furthermore, M. bovis infection was found to activate the TLR1/2/6/9/MyD88/NF-κB and TLR3/TRIF/IRF signal transduction pathways, which in turn activate inflammatory factors. These findings lay the theoretical foundation for understanding the pathogenesis of M. bovis, permitting the development of effective measures for preventing and controlling M. bovis mastitis.
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Affiliation(s)
- Jinghan Yang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yuhui Liu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Changjie Lin
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Rui Yan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Zhengzhi Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Qiuhui Chen
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Haiyan Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Haojun Xu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xi Chen
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Yingyu Chen
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
| | - Aizhen Guo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
| | - Changmin Hu
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China
- *Correspondence: Changmin Hu
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Pôrto RNG, Junqueira-kipnis AP, de Oliveira Viu MA, Teixeira RC, Gambarini ML. Evaluation of in vitro Activation of Bovine Endometrial and Vaginal Epithelial and Blood Mononuclear Cells to Produce Nitric Oxide in Response to Mycoplasma bovis, Mycoplasma bovigenitalium and Ureaplasma diversum. ACTA VET-BEOGRAD 2021; 71:137-46. [DOI: 10.2478/acve-2021-0012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Abstract
Genital mycoplasmosis is a condition present in bovine production systems, and the most important agents involved are Mycoplasma bovis, Mycoplasma bovigenitalium and Ureaplasma diversum. Some aspects of their pathogenesis remain unclear. This study was designed in order to evaluate their ability to stimulate mononuclear cells from the endometrium, vagina and peripheral blood of cycling and healthy cows to produce nitric oxide (NO). Cellular cultures of endometrial, vaginal and peripheral blood cells from 33 healthy cows were cultivated with Mycoplasma bovis, Mycoplasma bovigenitalium and Ureaplasma diversum originated from the 4th passage in culture broth and the NO production was measured by the Greiss reaction. Confirmation of the presence of mononuclear cells and of the agents during and after the NO assay was done by Giemsa stained smears and further cultivation and detection by PCR reaction. Mononuclear cells from all samples produced NO. Mycoplasma bovigenitalium stimulated higher NO production than the others (p<0.05). Endometrial cells produced less NO than vaginal or blood cultured cells. In conclusion, it seems that Mycoplasma bovis, Mycoplasma bovigenitalium, and Ureaplasma diversum are able to activate mononuclear cells and induce the production of NO, thus suggesting that this pathway is elicited in response to the primary infection by these agents. More studies are necessary to verify why these agents remain in the bovine reproductive tract for long periods and how they reassume deleterious effects.
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Root-Bernstein R. Innate Receptor Activation Patterns Involving TLR and NLR Synergisms in COVID-19, ALI/ARDS and Sepsis Cytokine Storms: A Review and Model Making Novel Predictions and Therapeutic Suggestions. Int J Mol Sci 2021; 22:ijms22042108. [PMID: 33672738 PMCID: PMC7924650 DOI: 10.3390/ijms22042108] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 01/08/2023] Open
Abstract
Severe COVID-19 is characterized by a “cytokine storm”, the mechanism of which is not yet understood. I propose that cytokine storms result from synergistic interactions among Toll-like receptors (TLR) and nucleotide-binding oligomerization domain-like receptors (NLR) due to combined infections of SARS-CoV-2 with other microbes, mainly bacterial and fungal. This proposition is based on eight linked types of evidence and their logical connections. (1) Severe cases of COVID-19 differ from healthy controls and mild COVID-19 patients in exhibiting increased TLR4, TLR7, TLR9 and NLRP3 activity. (2) SARS-CoV-2 and related coronaviruses activate TLR3, TLR7, RIG1 and NLRP3. (3) SARS-CoV-2 cannot, therefore, account for the innate receptor activation pattern (IRAP) found in severe COVID-19 patients. (4) Severe COVID-19 also differs from its mild form in being characterized by bacterial and fungal infections. (5) Respiratory bacterial and fungal infections activate TLR2, TLR4, TLR9 and NLRP3. (6) A combination of SARS-CoV-2 with bacterial/fungal coinfections accounts for the IRAP found in severe COVID-19 and why it differs from mild cases. (7) Notably, TLR7 (viral) and TLR4 (bacterial/fungal) synergize, TLR9 and TLR4 (both bacterial/fungal) synergize and TLR2 and TLR4 (both bacterial/fungal) synergize with NLRP3 (viral and bacterial). (8) Thus, a SARS-CoV-2-bacterium/fungus coinfection produces synergistic innate activation, resulting in the hyperinflammation characteristic of a cytokine storm. Unique clinical, experimental and therapeutic predictions (such as why melatonin is effective in treating COVID-19) are discussed, and broader implications are outlined for understanding why other syndromes such as acute lung injury, acute respiratory distress syndrome and sepsis display varied cytokine storm symptoms.
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Santos Junior MN, de Macêdo Neres NS, Campos GB, Bastos BL, Timenetsky J, Marques LM. A Review of Ureaplasma diversum: A Representative of the Mollicute Class Associated With Reproductive and Respiratory Disorders in Cattle. Front Vet Sci 2021; 8:572171. [PMID: 33681318 PMCID: PMC7930009 DOI: 10.3389/fvets.2021.572171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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] [Received: 06/19/2020] [Accepted: 01/13/2021] [Indexed: 12/22/2022] Open
Abstract
The Mollicutes class encompasses wall-less microbes with a reduced genome. They may infect plants, insects, humans, and animals including those on farms and in livestock. Ureaplasma diversum is a mollicute associated with decreased reproduction mainly in the conception rate in cattle, as well as weight loss and decreased quality in milk production. Therefore, U. diversum infection contributes to important economic losses, mainly in large cattle-producing countries such as the United States, China, Brazil, and India. The characteristics of Mollicutes, virulence, and pathogenic variations make it difficult to control their infections. Genomic analysis, prevalence studies, and immunomodulation assays help better understand the pathogenesis of bovine ureaplasma. Here we present the main features of transmission, virulence, immune response, and pathogenesis of U. diversum in bovines.
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Affiliation(s)
- Manoel Neres Santos Junior
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
- Department of Microbiology, State University of Santa Cruz (UESC), Ilhéus, Brazil
| | - Nayara Silva de Macêdo Neres
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Guilherme Barreto Campos
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Bruno Lopes Bastos
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Jorge Timenetsky
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Lucas Miranda Marques
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
- Department of Microbiology, State University of Santa Cruz (UESC), Ilhéus, Brazil
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
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Benedetti F, Curreli S, Zella D. Mycoplasmas-Host Interaction: Mechanisms of Inflammation and Association with Cellular Transformation. Microorganisms 2020; 8:E1351. [PMID: 32899663 DOI: 10.3390/microorganisms8091351] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 08/28/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Mycoplasmas are the smallest and simplest self-replicating prokaryotes. Located everywhere in nature, they are widespread as parasites of humans, mammals, reptiles, fish, arthropods, and plants. They usually exhibiting organ and tissue specificity. Mycoplasmas belong to the class named Mollicutes (mollis = soft and cutis = skin, in Latin), and their small size and absence of a cell wall contribute to distinguish them from other bacteria. Mycoplasma species are found both outside the cells as membrane surface parasites and inside the cells, where they become intracellular residents as "silent parasites". In humans, some Mycoplasma species are found as commensal inhabitants, while others have a significant impact on the cellular metabolism and physiology. Mollicutes lack typical bacterial PAMPs (e.g., lipoteichoic acid, flagellin, and some lipopolysaccharides) and consequently the exact molecular mechanisms of Mycoplasmas' recognition by the cells of the immune system is the subjects of several researches for its pathogenic implications. It is well known that several strains of Mycoplasma suppress the transcriptional activity of p53, resulting in reduced apoptosis of damaged cells. In addition, some Mycoplasmas were reported to have oncogenic potential since they demonstrated not just accumulation of abnormalities but also phenotypic changes of the cells. Aim of this review is to provide an update of the current literature that implicates Mycoplasmas in triggering inflammation and altering critical cellular pathways, thus providing a better insight into potential mechanisms of cellular transformation.
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Yatoo MI, Parray OR, Bhat RA, Nazir QU, Haq AU, Malik HU, Fazilli MUR, Gopalakrishnan A, Bashir ST, Tiwari R, Khurana SK, Chaicumpa W, Dhama K. Novel Candidates for Vaccine Development Against Mycoplasma Capricolum Subspecies Capripneumoniae (Mccp)-Current Knowledge and Future Prospects. Vaccines (Basel) 2019; 7:E71. [PMID: 31340571 PMCID: PMC6789616 DOI: 10.3390/vaccines7030071] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 06/11/2019] [Revised: 07/05/2019] [Accepted: 07/12/2019] [Indexed: 02/06/2023] Open
Abstract
Exploration of novel candidates for vaccine development against Mycoplasma capricolum subspecies capripneumoniae (Mccp), the causative agent of contagious caprine pleuropneumonia (CCPP), has recently gained immense importance due to both the increased number of outbreaks and the alarming risk of transboundary spread of disease. Treatment by antibiotics as the only therapeutic strategy is not a viable option due to pathogen persistence, economic issues, and concerns of antibiotic resistance. Therefore, prophylactics or vaccines are becoming important under the current scenario. For quite some time inactivated, killed, or attenuated vaccines proved to be beneficial and provided good immunity up to a year. However, their adverse effects and requirement for larger doses led to the need for production of large quantities of Mccp. This is challenging because the required culture medium is costly and Mycoplasma growth is fastidious and slow. Furthermore, quality control is always an issue with such vaccines. Currently, novel candidate antigens including capsular polysaccharides (CPS), proteins, enzymes, and genes are being evaluated for potential use as vaccines. These have shown potential immunogenicity with promising results in eliciting protective immune responses. Being easy to produce, specific, effective and free from side effects, these novel vaccine candidates can revolutionize vaccination against CCPP. Use of novel proteomic approaches, including sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), two-dimensional gel electrophoresis, immunoblotting, matrix-assisted laser desorption/ionization-time-of-flight (MALDI-TOF) mass spectrometry, tandem mass spectroscopy, fast protein liquid chromatography (FPLC), bioinformatics, computerized simulation and genomic approaches, including multilocus sequence analysis, next-generation sequencing, basic local alignment search tool (BLAST), gene expression, and recombinant expression, will further enable recognition of ideal antigenic proteins and virulence genes with vaccination potential.
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Affiliation(s)
- Mohd Iqbal Yatoo
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India.
| | - Oveas Raffiq Parray
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Riyaz Ahmed Bhat
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Qurat Un Nazir
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Abrar Ul Haq
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Hamid Ullah Malik
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Mujeeb Ur Rehman Fazilli
- Mycoplasma Laboratory, Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Jammu and Kashmir, Srinagar 190006, India
| | - Arumugam Gopalakrishnan
- Department of Veterinary Clinical Medicine, Madras Veterinary College, Tamilnadu Veterinary and Animal Sciences University, Vepery 600007, India
| | - Shah Tauseef Bashir
- Department of Molecular and Integrative Physiology, University of Illinois, Urbana-Champaign, Urbana, IL 61801, USA
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura 281001, India
| | - Sandip Kumar Khurana
- ICAR-Central Institute for Research on Buffaloes, Sirsa Road, Hisar 125001, India
| | - Wanpen Chaicumpa
- Center of Research Excellence on Therapeutic Proteins and Antibody Engineering, Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, India.
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Yatoo MI, Parray OR, Bhat RA, Muheet M, Gopalakrishnan A, Saxena A, Chakraborty S, Tiwari R, Khurana SK, Singh SV, Dhama K. Emerging Antibiotic Resistance in Mycoplasma Microorganisms, Designing Effective and Novel Drugs / Therapeutic Targets: Current Knowledge and Futuristic Prospects. J Pure Appl Microbiol 2019; 13:27-44. [DOI: 10.22207/jpam.13.1.03] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Zuo L, Sun H, Yu M, You X, Zeng Y, Wu Y. Mycoplasma genitaliumlipoproteins inhibit tumour necrosis factor α-induced apoptosis in HeLa cells. BIOTECHNOL BIOTEC EQ 2018. [DOI: 10.1080/13102818.2018.1523688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Lingling Zuo
- Department of Transfusion Medicine, The Second Affiliated Hospital of University of South China, Hengyang, PR China
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, PR China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, PR China
| | - Hedong Sun
- Department of Neurology, The Second Affiliated Hospital of University of South China, Hengyang, PR China
| | - Minjun Yu
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, PR China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, PR China
| | - Xiaoxing You
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, PR China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, PR China
| | - Yanhua Zeng
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, PR China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, PR China
| | - Yimou Wu
- Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, Institution of Pathogenic Biology, Medical College, University of South China, Hengyang, PR China
- Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang, PR China
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Melgaço ACC, Blohem Pessoa WF, Freire HP, Evangelista de Almeida M, Santos Barbosa M, Passos Rezende R, Timenetsky J, Miranda Marques L, Romano CC. Potential of Maintaining a Healthy Vaginal Environment by Two Lactobacillus Strains Isolated from Cocoa Fermentation. Biomed Res Int 2018; 2018:7571954. [PMID: 30364031 PMCID: PMC6186379 DOI: 10.1155/2018/7571954] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 08/28/2018] [Accepted: 09/12/2018] [Indexed: 11/25/2022]
Abstract
Bacteria in the genera Mycoplasma and Ureaplasma do not have cell walls and therefore interact with host cells through lipid-associated membrane proteins (LAMP). These lipoproteins are important for both surface adhesion and modulation of host immune responses. Mycoplasma and Ureaplasma have been implicated in cases of bacterial vaginosis (BV), which can cause infertility, abortion, and premature delivery. In contrast, bacteria of the genus Lactobacillus, which are present in the vaginal microbiota of healthy women, are thought to inhibit local colonization by pathogenic microorganisms. The aim of the present study was to evaluate the in vitro interactions between lipoproteins of Mycoplasma and Ureaplasma species and vaginal lineage (HMVII) cells and to study the effect of Lactobacillus isolates from cocoa fermentation on these interactions. The tested Lactobacillus strains showed some important probiotic characteristics, with autoaggregation percentages of 28.55% and 31.82% for L. fermentum FA4 and L. plantarum PA3 strains, respectively, and percent adhesion values of 31.66 and 41.65%, respectively. The two strains were hydrophobic, with moderate to high hydrophobicity values, 65.33% and 71.12% for L. fermentum FA4 and L. plantarum PA3 in toluene. Both strains secreted acids into the culture medium with pH=4.32 and pH=4.33, respectively, and showed antibiotics susceptibility profiles similar to those of other lactobacilli. The strains were also able to inhibit the death of vaginal epithelial cells after incubation with U. parvum LAMP from 41.03% to 2.43% (L. fermentum FA4) and 0.43% (L. plantarum PA3) and also managed to significantly decrease the rate of cell death caused by the interaction with LAMP of M. hominis from 34.29% to 14.06% (L. fermentum FA4) and 14.61% (L. plantarum PA3), thus demonstrating their potential for maintaining a healthy vaginal environment.
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Affiliation(s)
- Ana Clara Correia Melgaço
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Wallace Felipe Blohem Pessoa
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Herbert Pina Freire
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Milena Evangelista de Almeida
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Maysa Santos Barbosa
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Micoplasmas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Rachel Passos Rezende
- Departamento de Ciências Biológicas, Laboratório de Biotecnologia Microbiana, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
| | - Jorge Timenetsky
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Micoplasmas, Universidade de São Paulo (USP), São Paulo, Brazil
| | - Lucas Miranda Marques
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Laboratório de Micoplasmas, Universidade de São Paulo (USP), São Paulo, Brazil
- Instituto Multidisciplinar em Saúde/Campus Anísio Teixeira, Universidade Federal da Bahia, IMS/CAT-UFBA, Vitória da Conquista, Brazil
| | - Carla Cristina Romano
- Departamento de Ciências Biológicas, Laboratório de Imunologia, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Campus Soane Nazaré de Andrade, Salobrinho, Rodovia Jorge Amado, Km 16, 45662-900 Ilhéus, BA, Brazil
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Huang X, Qiao Y, Zhou Y, Ruan Z, Kong Y, Li G, Xie X, Zhang J. Ureaplasma spp. lipid-associated membrane proteins induce human monocyte U937 cell cycle arrest through p53-independent p21 pathway. Int J Med Microbiol 2018; 308:819-828. [PMID: 30033344 DOI: 10.1016/j.ijmm.2018.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/20/2018] [Accepted: 07/15/2018] [Indexed: 12/26/2022] Open
Abstract
Ureaplasma spp. are known to be associated with human genitourinary tract diseases and perinatal diseases and Ureaplasma spp. Lipid-associated membrane proteins (LAMPs) play important roles in their related diseases. However, the exact mechanism underlying pathogenesis of Ureaplasma spp. LAMPs is largely unknown. In this study, we explored the pathogenic mechanisms of Ureaplasma spp. LAMPs by elucidating their role in modulating the cell cycle and related signaling pathways in human monocytic cell U937, which is highly related to the inflammatory and protective effect in infectious diseases. We utilized the two ATCC reference strains (Ureaplasma parvum serovar 3 str. ATCC 27,815 (UPA3) and Ureaplasma urealyticum serovar 8 str. ATCC 27,618 (UUR8)) and nine clinical isolates which including both UPA and UUR to study the effects of Ureaplasma spp. LAMPs on U937 in vitro. We found that LAMPs derived from UUR8 and both UPA and UUR of clinical strains markedly inhibited the cell proliferation, while UPA3 LAMPs suppressed slightly. Besides, the result of flow cytometry analysis indicated all the Ureaplasma spp. LAMPs could arrest U937 cells in G1 phase. Next, we found that the cell cycle arrest was associated with increased levels of p53 and p21, and a concomitant decrease in the levels of CDK2, CDK4, CDK6 and cyclin E1 at both transcriptional and translational levels after treatment with LAMPs derived from UUR8 or clinical strains, while only cyclin E1 was down-regulated after treatment with UPA3 LAMPs. Further study showed that p53 down-regulation had almost no effect on the distribution of cell cycle and the expression of p21. In conclusion, this study demonstrated that LAMPs derived from UUR8 and clinical strains could inhibit the proliferation of U937 cells by inducing G1 cell cycle arrest through increasing the p21 expression in a p53-independent manner, while UPA3 LAMPs could induce the cell cycle arrest slightly. Our study could contribute to the understanding of Ureaplasma spp. pathogenesis, which has potential value for the treatment of Ureaplasma spp. infections.
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Affiliation(s)
- Xucheng Huang
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Yingli Qiao
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Yixuan Zhou
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Zhi Ruan
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Yingying Kong
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Guoli Li
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China
| | - Xinyou Xie
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China.
| | - Jun Zhang
- Clinical Laboratory, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China; Biomedical Research Center, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China.
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12
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Santos-Junior MN, Rezende IS, Souza CLS, Barbosa MS, Campos GB, Brito LF, Queiroz ÉC, Barbosa EN, Teixeira MM, Da Silva LO, Silva LSC, Nascimento FS, Da Silva TL, Martens AA, Siqueira AFP, Assumpção MEOD, Machado-Santelli GM, Bastos BL, Guimarães AMS, Timenetsky J, Marques LM. Ureaplasma diversum and Its Membrane-Associated Lipoproteins Activate Inflammatory Genes Through the NF-κB Pathway via Toll-Like Receptor 4. Front Microbiol 2018; 9:1538. [PMID: 30050519 PMCID: PMC6052353 DOI: 10.3389/fmicb.2018.01538] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 11/16/2017] [Accepted: 06/20/2018] [Indexed: 01/15/2023] Open
Abstract
Objectives:Ureaplasma diversum is a pathogen of cows that may cause intense inflammatory responses in the reproductive tract and interfere with bovine reproduction. The aims of this study were to evaluate the immune response of bovine blastocysts and macrophages to U. diversum infection and to evaluate the invasion capacity of this microorganism in bovine blastocysts. Methods: Viable and heat-inactivated U. diversum strains ATCC 49782 and CI-GOTA and their extracted membrane lipoproteins were inoculated in macrophages in the presence or absence of signaling blockers of Toll-Like Receptor (TLR) 4, TLR2/4, and Nuclear Factor KB (NF-κB). In addition, the same viable U. diversum strains were used to infect bovine blastocysts. RNA was extracted from infected and lipoprotein-exposed macrophages and infected blastocysts and assayed by qPCR to evaluate the expression of Interleukin 1 beta (IL-1β), Tumor Necrosis Factor Alpha (TNF-α), TLR2 and TLR4 genes. U. diversum internalization in blastocysts was followed by confocal microscopy. Results: Both Ureaplasma strains and different concentrations of extracted lipoproteins induced a higher gene expression of IL-1β, TNF-α, TLR2, and TLR4 in macrophages (p < 0.05) when compared to non-infected cells. The used blockers inhibited the expression of IL-1β and TNF-α in all treatments. Moreover, U. diversum was able to internalize within blastocysts and induce a higher gene expression of IL-1b and TNF- α when compared to non-infected blastocysts (p < 0.05). Conclusion: The obtained results strongly suggest that U. diversum and its lipoproteins interact with TLR4 in a signaling pathway acting via NF-kB signaling to stimulate the inflammatory response. This is the first study to evaluate the in vitro immunological response of macrophages and bovine blastocysts against U. diversum. These results may contribute to a better understanding of the immunomodulatory activity and pathogenicity of this infectious agent.
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Affiliation(s)
- Manoel N Santos-Junior
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil.,Department of Microbiology, State University of Santa Cruz (UESC), Ilhéus, Brazil
| | - Izadora S Rezende
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Clarissa L S Souza
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Maysa S Barbosa
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Guilherme B Campos
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil.,Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Laís F Brito
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Éllunny C Queiroz
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Elaine N Barbosa
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Mariana M Teixeira
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Letícia O Da Silva
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Lucas S C Silva
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Flávia S Nascimento
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Tassyo L Da Silva
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Adam A Martens
- Department of Cellular Biology and Development, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Adriano F P Siqueira
- Department of Animal Reproduction, College of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Mayra E O D'Avila Assumpção
- Department of Animal Reproduction, College of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Glaucia M Machado-Santelli
- Department of Cellular Biology and Development, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Bruno L Bastos
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil
| | - Ana M S Guimarães
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Jorge Timenetsky
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Lucas M Marques
- Department of Biointeraction, Multidisciplinary Institute of Health, Universidade Federal da Bahia, Vitória da Conquista, Brazil.,Department of Microbiology, State University of Santa Cruz (UESC), Ilhéus, Brazil.,Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
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13
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Wehbe K, Vezzalini M, Cinque G. Detection of mycoplasma in contaminated mammalian cell culture using FTIR microspectroscopy. Anal Bioanal Chem 2018; 410:3003-3016. [PMID: 29549508 PMCID: PMC5889780 DOI: 10.1007/s00216-018-0987-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/15/2018] [Accepted: 02/26/2018] [Indexed: 01/06/2023]
Abstract
Mycoplasma contamination represents a significant problem to the culture of mammalian cells used for research as it can cause disastrous effects on eukaryotic cells by altering cellular parameters leading to unreliable experimental results. Mycoplasma cells are very small bacteria therefore they cannot be detected by visual inspection using a visible light microscope and, thus, can remain unnoticed in the cell cultures for long periods. The detection techniques used nowadays to reveal mycoplasma contamination are time consuming and expensive with each having significant drawbacks. The ideal detection should be simple to perform with minimal preparation time, rapid, inexpensive, and sensitive. To our knowledge, for the first time, we employed Fourier transform infrared (FTIR) microspectroscopy to investigate whether we can differentiate between control cells and the same cells which have been infected with mycoplasmas during the culturing process. Chemometric methods such as HCA and PCA were used for the data analysis in order to detect spectral differences between control and intentionally infected cells, and spectral markers were revealed even at low contamination level. The preliminary results showed that FTIR has the potential to be used in the future as a reliable complementary detection technique for mycoplasma-infected cells. Graphical abstract FTIR microspectroscopy is able to differentiate between mycoplasma infected cells (LC for low contamination and HC for high contamination) and control non-infected cells (CN).
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Affiliation(s)
- Katia Wehbe
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK.
| | - Marzia Vezzalini
- Department of Medicine, General Pathology Section, University of Verona, Strada Le Grazie, 8, 37134, Verona, Italy
| | - Gianfelice Cinque
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, UK
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14
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Pôrto R, Oliveira B, Ferraz H, Caixeta L, Viu MA, Gambarini ML. Histopatology of the reproductive tract of Nellore pubertal heifers with genital ureaplasmosis. AN ACAD BRAS CIENC 2017; 89:2987-2996. [PMID: 29236848 DOI: 10.1590/0001-3765201720160803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 05/23/2017] [Indexed: 12/22/2022] Open
Abstract
In order to study and characterize the lesions in the reproductive tract of Nellore heifers naturally infected with Ureaplasma diversum and presenting granular vulvovaginitis syndrome (GVS), fragments of uterine tube, uterus, cervix, vagina and vulva of 20 animals were evaluated. The macroscopic lesions of the vulvovaginal mucosa were classified in scores of "1" mild, until "4", severe inflammation and pustular or necrotic lesions. The histopathological evaluation was performed using scores of "1" to "4", according to the inflammatory alterations. The fragments with severe microscopic lesions (3 and 4) were from the uterine tubes and uterus, which showed leukocytes infiltration and destruction and/or necrosis of epithelium. Alterations in the lower reproductive tract fragments were mild, but characteristics of acute inflammatory processes. The histopathological findings of the reproductive tract of females naturally infected with Ureaplasma diversum are consistent with injuries that compromise the environment from the local where spermatozoa acquires ability to fertilize an oocyte until those where the oocyte is fertilized. Therefore, animals with GVS should be identified early in the herd, because, besides the reduction in the fertility rates caused by tissue damages, they can contribute to disseminate the microorganism. Key words: bovine, tissue evaluation, reproduction, Ureaplasma diversum.
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Affiliation(s)
- Regiani Pôrto
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Avenida Esperança, s/n, Campus Universitário, 74690-900 Goiânia, GO, Brazil
| | - Benedito Oliveira
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Avenida Esperança, s/n, Campus Universitário, 74690-900 Goiânia, GO, Brazil
| | - Henrique Ferraz
- Unidade Especial de Ciências Agrárias, Regional Jataí, Universidade Federal de Goiás, Campus Cidade Universitária, BR 364, Km 195, 3800, 75801-615 Goiânia, GO, Brazil
| | - Luciano Caixeta
- Veterinary Population Medicine Department, College of Veterinary Medicine, Minessota University, 1365 Gortner Avenue, St. Paul, MN 55108, USA
| | - Marco Antonio Viu
- Unidade Especial de Ciências Agrárias, Regional Jataí, Universidade Federal de Goiás, Campus Cidade Universitária, BR 364, Km 195, 3800, 75801-615 Goiânia, GO, Brazil
| | - Maria Lúcia Gambarini
- Escola de Veterinária e Zootecnia, Universidade Federal de Goiás, Campus Samambaia, Avenida Esperança, s/n, Campus Universitário, 74690-900 Goiânia, GO, Brazil
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15
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Marques LM, Rezende IS, Barbosa MS, Guimarães AM, Martins HB, Campos GB, do Nascimento NC, Dos Santos AP, Amorim AT, Santos VM, Farias ST, Barrence FÂ, de Souza LM, Buzinhani M, Arana-Chavez VE, Zenteno ME, Amarante-Mendes GP, Messick JB, Timenetsky J. Ureaplasma diversum Genome Provides New Insights about the Interaction of the Surface Molecules of This Bacterium with the Host. PLoS One 2016; 11:e0161926. [PMID: 27603136 DOI: 10.1371/journal.pone.0161926] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/15/2016] [Indexed: 12/16/2022] Open
Abstract
Whole genome sequencing and analyses of Ureaplasma diversum ATCC 49782 was undertaken as a step towards understanding U. diversum biology and pathogenicity. The complete genome showed 973,501 bp in a single circular chromosome, with 28.2% of G+C content. A total of 782 coding DNA sequences (CDSs), and 6 rRNA and 32 tRNA genes were predicted and annotated. The metabolic pathways are identical to other human ureaplasmas, including the production of ATP via hydrolysis of the urea. Genes related to pathogenicity, such as urease, phospholipase, hemolysin, and a Mycoplasma Ig binding protein (MIB)-Mycoplasma Ig protease (MIP) system were identified. More interestingly, a large number of genes (n = 40) encoding surface molecules were annotated in the genome (lipoproteins, multiple-banded antigen like protein, membrane nuclease lipoprotein and variable surface antigens lipoprotein). In addition, a gene encoding glycosyltransferase was also found. This enzyme has been associated with the production of capsule in mycoplasmas and ureaplasma. We then sought to detect the presence of a capsule in this organism. A polysaccharide capsule from 11 to 17 nm of U. diversum was observed trough electron microscopy and using specific dyes. This structure contained arabinose, xylose, mannose, galactose and glucose. In order to understand the inflammatory response against these surface molecules, we evaluated the response of murine macrophages J774 against viable and non-viable U. diversum. As with viable bacteria, non-viable bacteria were capable of promoting a significant inflammatory response by activation of Toll like receptor 2 (TLR2), indicating that surface molecules are important for the activation of inflammatory response. Furthermore, a cascade of genes related to the inflammasome pathway of macrophages was also up-regulated during infection with viable organisms when compared to non-infected cells. In conclusion, U. diversum has a typical ureaplasma genome and metabolism, and its surface molecules, including the identified capsular material, represent major components of the organism immunopathogenesis.
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16
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Majumder S, Zappulla F, Silbart LK. Mycoplasma gallisepticum lipid associated membrane proteins up-regulate inflammatory genes in chicken tracheal epithelial cells via TLR-2 ligation through an NF-κB dependent pathway. PLoS One 2014; 9:e112796. [PMID: 25401327 DOI: 10.1371/journal.pone.0112796] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 10/20/2014] [Indexed: 01/20/2023] Open
Abstract
Mycoplasma gallisepticum-mediated respiratory inflammation in chickens is associated with accumulation of leukocytes in the tracheal submucosa. However the molecular mechanisms underpinning these changes have not been well described. We hypothesized that the initial inflammatory events are initiated upon ligation of mycoplasma lipid associated membrane proteins (LAMP) to TLRs expressed on chicken tracheal epithelial cells (TEC). To test this hypothesis, live bacteria or LAMPs isolated from a virulent (Rlow) or a non-virulent (Rhigh) strain were incubated with primary TECs or chicken tracheae ex vivo. Microarray analysis identified up-regulation of several inflammatory and chemokine genes in TECs as early as 1.5 hours post-exposure. Kinetic analysis using RT-qPCR identified the peak of expression for most genes to be at either 1.5 or 6 hours. Ex-vivo exposure also showed up-regulation of inflammatory genes in epithelial cells by 1.5 hours. Among the commonly up-regulated genes were IL-1β, IL-6, IL-8, IL-12p40, CCL-20, and NOS-2, all of which are important immune-modulators and/or chemo-attractants of leukocytes. While these inflammatory genes were up-regulated in all four treatment groups, Rlow exposed epithelial cells both in vitro and ex vivo showed the most dramatic up-regulation, inducing over 100 unique genes by 5-fold or more in TECs. Upon addition of a TLR-2 inhibitor, LAMP-mediated gene expression of IL-1β and CCL-20 was reduced by almost 5-fold while expression of IL-12p40, IL-6, IL-8 and NOS-2 mRNA was reduced by about 2–3 fold. Conversely, an NF-κB inhibitor abrogated the response entirely for all six genes. miRNA-146a, a negative regulator of TLR-2 signaling, was up-regulated in TECs in response to either Rlow or Rhigh exposure. Taken together we conclude that LAMPs isolated from both Rhigh and Rlow induced rapid, TLR-2 dependent but transient up-regulation of inflammatory genes in primary TECs through an NF-κB dependent pathway.
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17
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Reolon LA, Martello CL, Schrank IS, Ferreira HB. Survey of surface proteins from the pathogenic Mycoplasma hyopneumoniae strain 7448 using a biotin cell surface labeling approach. PLoS One 2014; 9:e112596. [PMID: 25386928 PMCID: PMC4227723 DOI: 10.1371/journal.pone.0112596] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Accepted: 10/09/2014] [Indexed: 12/15/2022] Open
Abstract
The characterization of the repertoire of proteins exposed on the cell surface by Mycoplasma hyopneumoniae (M. hyopneumoniae), the etiological agent of enzootic pneumonia in pigs, is critical to understand physiological processes associated with bacterial infection capacity, survival and pathogenesis. Previous in silico studies predicted that about a third of the genes in the M. hyopneumoniae genome code for surface proteins, but so far, just a few of them have experimental confirmation of their expression and surface localization. In this work, M. hyopneumoniae surface proteins were labeled in intact cells with biotin, and affinity-captured biotin-labeled proteins were identified by a gel-based liquid chromatography-tandem mass spectrometry approach. A total of 20 gel slices were separately analyzed by mass spectrometry, resulting in 165 protein identifications corresponding to 59 different protein species. The identified surface exposed proteins better defined the set of M. hyopneumoniae proteins exposed to the host and added confidence to in silico predictions. Several proteins potentially related to pathogenesis, were identified, including known adhesins and also hypothetical proteins with adhesin-like topologies, consisting of a transmembrane helix and a large tail exposed at the cell surface. The results provided a better picture of the M. hyopneumoniae cell surface that will help in the understanding of processes important for bacterial pathogenesis. Considering the experimental demonstration of surface exposure, adhesion-like topology predictions and absence of orthologs in the closely related, non-pathogenic species Mycoplasma flocculare, several proteins could be proposed as potential targets for the development of drugs, vaccines and/or immunodiagnostic tests for enzootic pneumonia.
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Affiliation(s)
- Luciano Antonio Reolon
- Laboratório de microrganismos diazotróficos, Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Carolina Lumertz Martello
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
| | - Irene Silveira Schrank
- Laboratório de microrganismos diazotróficos, Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, UFRGS, RS, Brazil
| | - Henrique Bunselmeyer Ferreira
- Laboratório de Genômica Estrutural e Funcional, Centro de Biotecnologia, UFRGS, Porto Alegre, RS, Brazil
- Programa de Pós-Graduação em Biologia Celular e Molecular, Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
- Departamento de Biologia Molecular e Biotecnologia, Instituto de Biociências, UFRGS, RS, Brazil
- * E-mail:
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18
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Amorim AT, Marques LM, Santos AMOG, Martins HB, Barbosa MS, Rezende IS, Andrade EF, Campos GB, Lobão TN, Cortez BA, Monezi TA, Machado-Santelli GM, Timenetsky J. Apoptosis in HEp-2 cells infected with Ureaplasma diversum. Biol Res 2014; 47:38. [PMID: 25299837 PMCID: PMC4167145 DOI: 10.1186/0717-6287-47-38] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 08/22/2014] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Bacterial pathogens have many strategies for infecting and persisting in host cells. Adhesion, invasion and intracellular life are important features in the biology of mollicutes. The intracellular location of Ureaplasma diversum may trigger disturbances in the host cell. This includes activation or inhibition of pro and anti-apoptotic factors, which facilitate the development of host damage. The aim of the present study was to associate U. diversum infection in HEp-2 cells and apoptosis induction. Cells were infected for 72hs with four U. diversum clinical isolates and an ATCC strain. The U. diversum invasion was analyzed by Confocal Laser Scanning Microscopy and gentamicin invasion assay. The apoptosis was evaluated using pro-apoptotic and anti-apoptotic gene expression, and FITC Annexin V/Dead Cell Apoptosis Kit. RESULTS The number of internalized ureaplasma in HEp-2 cells increased significantly throughout the infection. The flow cytometry analysis with fluorochromes to detect membrane depolarization and gene expression for caspase 2, 3 and 9 increased in infected cells after 24 hours. However, after 72 hours a considerable decrease of apoptotic cells was observed. CONCLUSIONS The data suggests that apoptosis may be initially induced by some isolates in association with HEp-2 cells, but over time, there was no evidence of apoptosis in the presence of ureaplasma and HEp-2 cells. The initial increase and then decrease in apoptosis could be related to bacterial pathogen-associated molecular pattern (PAMPS). Moreover, the isolates of U. diversum presented differences in the studied parameters for apoptosis. It was also observed that the amount of microorganisms was not proportional to the induction of apoptosis in HEp-2 cells.
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Affiliation(s)
- Aline Teixeira Amorim
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil.
| | - Lucas Miranda Marques
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil. .,Instituto de Ciências Biomédicas, Departamento de Microbiologia, Universidade de São Paulo, São Paulo, Brazil.
| | | | - Hellen Braga Martins
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil.
| | - Maysa Santos Barbosa
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil.
| | - Izadora Souza Rezende
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil.
| | - Ewerton Ferraz Andrade
- Instituto Multidisciplinar em Saúde, Núcleo de Tecnologia em Saúde, Universidade Federal da Bahia, Vitória da Conquista, Brazil.
| | - Guilherme Barreto Campos
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Universidade de São Paulo, São Paulo, Brazil.
| | - Tássia Neves Lobão
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Universidade de São Paulo, São Paulo, Brazil.
| | - Beatriz Araujo Cortez
- Instituto de Ciências Biomédicas, Departamento de Biologia Celular e do Desenvolvimento, Universidade de São Paulo, São Paulo, Brazil.
| | - Telma Alvez Monezi
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Universidade de São Paulo, São Paulo, Brazil.
| | - Glaucia Maria Machado-Santelli
- Instituto de Ciências Biomédicas, Departamento de Biologia Celular e do Desenvolvimento, Universidade de São Paulo, São Paulo, Brazil.
| | - Jorge Timenetsky
- Instituto de Ciências Biomédicas, Departamento de Microbiologia, Universidade de São Paulo, São Paulo, Brazil.
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Benedetti F, Davinelli S, Krishnan S, Gallo RC, Scapagnini G, Zella D, Curreli S. Sulfur compounds block MCP-1 production by Mycoplasma fermentans-infected macrophages through NF-κB inhibition. J Transl Med 2014; 12:145. [PMID: 24886588 PMCID: PMC4046042 DOI: 10.1186/1479-5876-12-145] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 05/22/2014] [Indexed: 12/04/2022] Open
Abstract
Background and aims Hydrogen sulfide (H2S), together with nitric oxide (NO) and carbon monoxide (CO), belongs to a family of endogenous signaling mediators termed “gasotransmitters”. Recent studies suggest that H2S modulates many cellular processes and it has been recognized to play a central role in inflammation, in the cardiovascular and nervous systems. By infecting monocytes/macrophages with Mycoplasma fermentans (M.F.), a well-known pro-inflammatory agent, we evaluated the effects of H2S. Methods M.F.-infected cells were analyzed by ELISA and real time RT-PCR to detect the M.F. effects on MCP-1 and on MMP-12 expression. The role of two different H2S donors (NaHS and GYY4137) on MF-infected cells was determined by treating infected cells with H2S and then testing the culture supernatants for MCP-1 and on MMP-12 production by ELISA assay. In order to identify the pathway/s mediating H2S- anti-inflammatory activity, cells were also treated with specific pharmaceutical inhibitors. Cytoplasmic and nuclear accumulation of NF-κB heterodimers was analyzed. Results We show that H2S was able to reduce the production of pro-inflammatory cytokine MCP-1, that was induced in monocytes/macrophages during M.F. infection. Moreover, MCP-1 was induced by M.F. through Toll-like receptor (TLR)-mediated nuclear factor-κB (NF-κB) activation, as demonstrated by the fact that TLR inhibitors TIRAP and MyD88 and NF-κB inhibitor IKK were able to block the cytokine production. In contrast H2S treatment of M.F. infected macrophages reduced nuclear accumulation of NF-κB heterodimer p65/p52. Conclusions Our data demonstrate that under the present conditions H2S is effective in reducing Mycoplasma-induced inflammation by targeting the NF-κB pathway. This supports further studies for possible clinical applications.
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Affiliation(s)
| | | | | | | | | | | | - Sabrina Curreli
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Das K, De la Garza G, Maffi S, Saikolappan S, Dhandayuthapani S. Methionine sulfoxide reductase A (MsrA) deficient Mycoplasma genitalium shows decreased interactions with host cells. PLoS One 2012; 7:e36247. [PMID: 22558404 PMCID: PMC3340341 DOI: 10.1371/journal.pone.0036247] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [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: 12/12/2011] [Accepted: 03/29/2012] [Indexed: 02/02/2023] Open
Abstract
Mycoplasma genitalium is an important sexually transmitted pathogen that affects both men and women. In genital-mucosal tissues, it initiates colonization of epithelial cells by attaching itself to host cells via several identified bacterial ligands and host cell surface receptors. We have previously shown that a mutant form of M. genitalium lacking methionine sulfoxide reductase A (MsrA), an antioxidant enzyme which converts oxidized methionine (Met(O)) into methionine (Met), shows decreased viability in infected animals. To gain more insights into the mechanisms by which MsrA controls M. genitalium virulence, we compared the wild-type M. genitalium strain (G37) with an msrA mutant (MS5) strain for their ability to interact with target cervical epithelial cell lines (HeLa and C33A) and THP-1 monocytic cells. Infection of epithelial cell lines with both strains revealed that MS5 was less cytotoxic to HeLa and C33A cell lines than the G37 strain. Also, the MS5 strain was more susceptible to phagocytosis by THP-1 cells than wild type strain (G37). Further, MS5 was less able to induce aggregation and differentiation in THP-1 cells than the wild type strain, as determined by carboxyfluorescein diacetate succinimidyl ester (CFSE) labeling of the cells, followed by counting of cells attached to the culture dish using image analysis. Finally, MS5 was observed to induce less proinflammatory cytokine TNF-α by THP-1 cells than wild type G37 strain. These results indicate that MsrA affects the virulence properties of M. genitalium by modulating its interaction with host cells.
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Affiliation(s)
- Kishore Das
- Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
- Department of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
| | - Georgina De la Garza
- Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
- Department of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
| | - Shivani Maffi
- Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
| | - Sankaralingam Saikolappan
- Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
- Department of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
| | - Subramanian Dhandayuthapani
- Regional Academic Health Center, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
- Department of Microbiology and Immunology, University of Texas Health Science Center at San Antonio, Edinburg, Texas, United States of America
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Cacciotto C, Addis MF, Pagnozzi D, Chessa B, Coradduzza E, Carcangiu L, Uzzau S, Alberti A, Pittau M. The liposoluble proteome of Mycoplasma agalactiae: an insight into the minimal protein complement of a bacterial membrane. BMC Microbiol 2010; 10:225. [PMID: 20738845 PMCID: PMC2941501 DOI: 10.1186/1471-2180-10-225] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 08/25/2010] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Mycoplasmas are the simplest bacteria capable of autonomous replication. Their evolution proceeded from gram-positive bacteria, with the loss of many biosynthetic pathways and of the cell wall. In this work, the liposoluble protein complement of Mycoplasma agalactiae, a minimal bacterial pathogen causing mastitis, polyarthritis, keratoconjunctivitis, and abortion in small ruminants, was subjected to systematic characterization in order to gain insights into its membrane proteome composition. RESULTS The selective enrichment for M. agalactiae PG2T liposoluble proteins was accomplished by means of Triton X-114 fractionation. Liposoluble proteins were subjected to 2-D PAGE-MS, leading to the identification of 40 unique proteins and to the generation of a reference 2D map of the M. agalactiae liposoluble proteome. Liposoluble proteins from the type strain PG2 and two field isolates were then compared by means of 2D DIGE, revealing reproducible differences in protein expression among isolates. An in-depth analysis was then performed by GeLC-MS/MS in order to achieve a higher coverage of the liposoluble proteome. Using this approach, a total of 194 unique proteins were identified, corresponding to 26% of all M. agalactiae PG2T genes. A gene ontology analysis and classification for localization and function was also carried out on all protein identifications. Interestingly, the 11.5% of expressed membrane proteins derived from putative horizontal gene transfer events. CONCLUSIONS This study led to the in-depth systematic characterization of the M. agalactiae liposoluble protein component, providing useful insights into its membrane organization.
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Affiliation(s)
- Carla Cacciotto
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Maria Filippa Addis
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
- Porto Conte Ricerche Srl, Tramariglio, Alghero (SS), Italy
| | | | - Bernardo Chessa
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Elisabetta Coradduzza
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Laura Carcangiu
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Sergio Uzzau
- Porto Conte Ricerche Srl, Tramariglio, Alghero (SS), Italy
- Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, Sassari, Italy
| | - Alberto Alberti
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
| | - Marco Pittau
- Dipartimento di Patologia e Clinica Veterinaria, Università degli Studi di Sassari, Sassari, Italy
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Abstract
Mycoplasmas, the smallest free-living, self-replicating bacteria with diameters of 200 to 800 nm, have been reported to be associated with human diseases. It is well known that the mycoplasma lipoprotein/peptide is able to modulate the host immune system, whose N-terminal structure is an important factor in inducing immunity and distinguishing Toll-like receptors (TLRs). However, there is still no clear elucidation about the pathogenic mechanism of mycoplasma lipoprotein/peptide and the signaling pathway. Some researchers have focused on understanding the structures of these proteins and the relationships between their structure and biological function. This review provides an update on the research in this field.
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Affiliation(s)
- Ling-ling Zuo
- Institute of Pathogenic Biology, University of South China, Hengyang, China
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Dedieu L, Totte P, Rodrigues V, Vilei EM, Frey J. Comparative analysis of four lipoproteins from Mycoplasma mycoides subsp. mycoides Small Colony identifies LppA as a major T-cell antigen. Comp Immunol Microbiol Infect Dis 2009; 33:279-90. [PMID: 19187963 DOI: 10.1016/j.cimid.2008.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2008] [Indexed: 10/21/2022]
Abstract
Control of contagious bovine pleuropneumonia (CBPP), caused by Mycoplasma mycoides subsp. mycoides Small Colony (MmmSC), remains an important goal in Africa. Subunit vaccines triggering B and T-cell responses could represent a promising approach. To this aim, the T-cell immunogenicity of four MmmSC lipoproteins (LppA, LppB, LppC and LppQ), present in African strains and able to elicit humoral response, was evaluated. In vitro assays revealed that only LppA was recognized by lymph node lymphocytes taken from three cattle, 3 weeks after MmmSC exposure. Maintenance of the LppA-specific response, relying on CD4 T-cells and IFN gamma production, was then demonstrated 1 year after infection. LppA is thus an important target for the CD4 T-cells generated early after MmmSC infection and persisting in the lymph nodes of recovered cattle. Its role as a protective antigen and ability to in vivo trigger both arms of the host immune response remain to be evaluated.
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Affiliation(s)
- Laurence Dedieu
- CIRAD, UMR Contrôle des Maladies, F-34398 Montpellier, France.
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Mohammed J, Frasca S, Cecchini K, Rood D, Nyaoke AC, Geary SJ, Silbart LK. Chemokine and cytokine gene expression profiles in chickens inoculated with Mycoplasma gallisepticum strains Rlow or GT5. Vaccine 2007; 25:8611-21. [DOI: 10.1016/j.vaccine.2007.09.057] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2007] [Revised: 09/20/2007] [Accepted: 09/25/2007] [Indexed: 11/26/2022]
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