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Production of biologically active recombinant salmon calcitonin in Escherichia coli and fish cell line
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-25 DOI: 10.1007/s00203-024-04216-9
A. Nafeez Ahmed, S. Abdul Majeed, G. Taju, S. Suryakodi, S. Mithra, M. J. Abdul Wazith, K. Kanimozhi, V. Rajkumar, A. Badhusha, A. S. Sahul Hameed
{"title":"Production of biologically active recombinant salmon calcitonin in Escherichia coli and fish cell line","authors":"A. Nafeez Ahmed,&nbsp;S. Abdul Majeed,&nbsp;G. Taju,&nbsp;S. Suryakodi,&nbsp;S. Mithra,&nbsp;M. J. Abdul Wazith,&nbsp;K. Kanimozhi,&nbsp;V. Rajkumar,&nbsp;A. Badhusha,&nbsp;A. S. Sahul Hameed","doi":"10.1007/s00203-024-04216-9","DOIUrl":"10.1007/s00203-024-04216-9","url":null,"abstract":"<div><p>Salmon calcitonin is a small peptide hormone synthesised and released by a specialised gland called ultimobranchial gland in fish. This hormone has been used to treat osteoporosis for over 50 years. The aim of this study was to compare the efficacy of five repeats of salmon calcitonin (5sCT) produced in two different hosts (bacteria and fish cell line). The 5sCT gene was synthesised and cloned in prokaryotic (pET32b(+)) and eukaryotic (pcDNA 3.1 + and pGenlenti) vectors. The pET32 b cloned plasmid was transformed into bacterial host BL 21 (DE3) and expression of recombinant 5sCT was induced by IPTG. The 5sCT cloned pcDNA 3.1 and pGenlenti plasmids were transfected using Lipofectamine 3000 in snubnose pompano fin (SPF) cell line. The expression of recombinant 5sCT protein in both hosts was confirmed by Western blot and ELISA using a polyclonal antibody raised against r-5sCT in mice. The results of Western blot and ELISA confirmed the expression of 5sCT protein in <i>E. coli</i> and SPF cells. The purified r-5cST expressed from both hosts was evaluated in mice via intramuscular injection at various dosages, and it was found that it significantly decreased serum calcium levels in mice when compared to normal mice.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exposure to spaceflight enhances the virulence of Purpureocillium lilacinum against Tetranychus cinnabarinus: modulation of the host’s enzyme activities and microbiome
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-24 DOI: 10.1007/s00203-024-04232-9
Xiaoxiao Wang, Fangzhao Yi, Chengli Zou, Qi Yan, Muhammad Hamid Bashir, Waqar Ahmed, Syed Usman Mahmood, Jianhui Wu, Shaukat Ali
{"title":"Exposure to spaceflight enhances the virulence of Purpureocillium lilacinum against Tetranychus cinnabarinus: modulation of the host’s enzyme activities and microbiome","authors":"Xiaoxiao Wang,&nbsp;Fangzhao Yi,&nbsp;Chengli Zou,&nbsp;Qi Yan,&nbsp;Muhammad Hamid Bashir,&nbsp;Waqar Ahmed,&nbsp;Syed Usman Mahmood,&nbsp;Jianhui Wu,&nbsp;Shaukat Ali","doi":"10.1007/s00203-024-04232-9","DOIUrl":"10.1007/s00203-024-04232-9","url":null,"abstract":"<div><p>Multiple studies have been conducted to investigate the impact of space conditions on human, plant, and microbial life. This research investigated the virulence of spaceflight mutants of the entomopathogenic fungus <i>Purpureocillium lilacinum</i> (HP7, HP36, HP52) and its original strain (SP535) against <i>Tetranychus cinnabarinus</i> as well as examination of the <i>T. cinnabarinus</i> immune response, including alterations in enzyme profiles and microbiome composition post fungal application. Our observations revealed contrasting, time-specific differences in pathogenicity and tissue infection between the ground-based isolate and spaceflight mutant isolates. Analysis of detoxifying and antioxidant enzymes showed a significant reduction in enzyme activities <i>T. cinnabarinus</i> infected with the most virulent spaceflight mutants at 36 h post-fungal infection, compared to ground-based isolates. Additionally, the microbiota was reduced due to a fungal infection, partly due to decreased antioxidant enzyme activities. Our findings indicate that changes in the microbiota of <i>T. cinnabarinus</i> following infection with <i>P. lilacinum</i> (both ground-based and spaceflight mutant isolates) resulted in variations in metabolism and genetic information-related KEGG pathways. This data can help identify potential changes in the host immune system that drive increased virulence after spaceflight mutation.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unveiling Paramyrothecium kamalii (Stachybotryaceae) as a novel foliar fungal pathogen on Matourea azurea in Kerala, India, based on morpho-cultural, pathological and molecular phylogenetic evidences
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-24 DOI: 10.1007/s00203-025-04243-0
Shambhu Kumar, K. B. Farsana, K. T. Mufeeda, Raghvendra Singh, S. Mahadevakumar
{"title":"Unveiling Paramyrothecium kamalii (Stachybotryaceae) as a novel foliar fungal pathogen on Matourea azurea in Kerala, India, based on morpho-cultural, pathological and molecular phylogenetic evidences","authors":"Shambhu Kumar,&nbsp;K. B. Farsana,&nbsp;K. T. Mufeeda,&nbsp;Raghvendra Singh,&nbsp;S. Mahadevakumar","doi":"10.1007/s00203-025-04243-0","DOIUrl":"10.1007/s00203-025-04243-0","url":null,"abstract":"<div><p>During recent survey for the investigation of foliar fungi in Kerala, India, a new species of foliicolous hyphomycete, <i>Paramyrothecium kamalii</i> was discovered on living leaves of <i>Matourea azurea</i> (<i>Plantaginaceae</i>) based on morpho-cultural characteristics and multigene (ITS, LSU, <i>cmdA</i>,<i> tub2</i>, and <i>rpb2</i>) phylogenetic analysis; is described, illustrated and discussed. In vitro Pathogenicity tests were performed and confirmed the pathogenic nature of the fungus, thereby fulfilling Koch’s postulates. Phylogenetically, <i>P. kamalii</i> forms a distinct clade, closely related to <i>P. verroridum</i>,<i> P. indicum</i>, and <i>P. roridum</i>. However, it differs morphologically by having longer conidiophores and conidia and lacks setae, unlike the closer species. The identification of <i>P. kamalii</i> as a new foliar pathogen provides critical insights for surveillance and effective control measure of this foliar disease of <i>M. azurea</i> in tropical ecosystems.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CRISPR-Cas-mediated adaptation of Thermus thermophilus HB8 to environmental stress conditions
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-23 DOI: 10.1007/s00203-025-04246-x
Abbas Karimi-Fard, Abbas Saidi, Masoud Tohidfar, Seyede Noushin Emami
{"title":"CRISPR-Cas-mediated adaptation of Thermus thermophilus HB8 to environmental stress conditions","authors":"Abbas Karimi-Fard,&nbsp;Abbas Saidi,&nbsp;Masoud Tohidfar,&nbsp;Seyede Noushin Emami","doi":"10.1007/s00203-025-04246-x","DOIUrl":"10.1007/s00203-025-04246-x","url":null,"abstract":"<div><p>Bacteria experience a continual array of environmental stresses, necessitating adaptive mechanisms crucial for their survival. Thermophilic bacteria, such as <i>Thermus thermophilus</i>, face constant environmental challenges, particularly high temperatures, which requires robust adaptive mechanisms for survival. Studying these extremophiles provides valuable insights into the intricate molecular and physiological processes used by extremophiles to adapt and survive in harsh environments. Through meta-analysis of microarray data, we revealed the key genes in <i>T. thermophilus</i> HB8 that respond to various environmental stresses. The analysis revealed 20 differentially expressed genes (DEGs), including 13 upregulated and seven downregulated genes, with a threshold of|log fold change| &gt; 1 and an adjusted p-value &lt; 0.05. Several genes identified as up-regulated in our analysis belonged to the CRISPR-associated protein (Cas) family. To validate these findings, we further evaluated the relative expression levels of <i>TTHB188</i> (<i>cas1/casA</i>), <i>TTHB189</i> (<i>cas2/casB</i>), <i>TTHB190</i> (<i>cas7</i>/<i>casC</i>), <i>TTHB191</i> (<i>cas5/casD</i>), <i>TTHB192</i> (<i>cas6</i>/<i>casE</i>), and <i>TTHB193</i> (<i>cas1e</i>) using RT-qPCR under H<sub>2</sub>O<sub>2</sub> and salt stress conditions. The RT-qPCR analysis revealed significant up-regulation of transcripts, <i>casA</i>, <i>casB</i>, <i>casC</i>, <i>casD</i>, c<i>asE</i>, and <i>cas1e</i> under salt stress. However, under H<sub>2</sub>O<sub>2</sub> stress, only, <i>casA</i>, <i>casB</i>, and c<i>asC</i> exhibited substantial increases in expression. Our findings may indicate that the CRISPR-associated proteins significantly impact the adaptive response of <i>T. thermophilus</i> HB8 to various environmental stresses, particularly salt stress, highlighting its significance in extremophile survival and adaptation. This research offers an important understanding of the complex strategies used by extremophiles to survive in challenging conditions.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00203-025-04246-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143021989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Typing Arctic and Africa-2 clades of rabies virus using clade-defining single nucleotide polymorphisms 利用定义支系的单核苷酸多态性分型狂犬病病毒北极和非洲-2支系
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-22 DOI: 10.1007/s00203-025-04235-0
Ankeet Kumar, Utpal Tatu
{"title":"Typing Arctic and Africa-2 clades of rabies virus using clade-defining single nucleotide polymorphisms","authors":"Ankeet Kumar,&nbsp;Utpal Tatu","doi":"10.1007/s00203-025-04235-0","DOIUrl":"10.1007/s00203-025-04235-0","url":null,"abstract":"<div><p>Rabies is a deadly neurotropic, zoonotic disease with a mortality rate of 100% after symptoms appear. Rabies virus (RABV) is the primary cause of rabies disease in humans, and it mainly spreads via dog bites in developing countries. Over the course of RABV evolution, multiple RABV variants, called clades, have emerged. However, our understanding of these clades is limited, as the only method to identify a clade is sequencing, followed by phylogeny. In this study, we have developed a rapid, PCR-based method for typing two RABV clades. We utilised highly conserved amino acid changes specific to the Arctic and Africa-2 clades of the rabies virus (RABV). A single nucleotide substitution from adenine to thymine at position 178 within the nucleoprotein gene was found to be clade-specific in the Arctic clade. Similarly, adenine at position 638 is a distinctive marker for the Africa-2 clade. The assay demonstrated high specificity and offers the added benefit of PCR-based amplification, enabling virus detection even when viral titers are low. The assay can identify the Arctic clade and Africa-2 clade without sequencing and is highly specific and sensitive. Furthermore, this method can be adapted to detect other RABV clades and a wide range of viruses.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potent antibacterial and cytotoxic bioactive compounds from endophytic fungi Diaporthe sp. associated with Salacia intermedia 与中间Salacia相关的内生真菌Diaporthe sp.的有效抗菌和细胞毒性生物活性化合物
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-22 DOI: 10.1007/s00203-025-04236-z
Greesty Finotory Swandiny, Euis Filaila, Jepri Agung Priyanto, Puspa Dewi Narrij Lotulung, Vera Permatasari, Tia Okselni, Muhammad Eka Prastya, Tri Yuliani, Winarto Haryadi, Akhmad Darmawan, Gian Primahana
{"title":"Potent antibacterial and cytotoxic bioactive compounds from endophytic fungi Diaporthe sp. associated with Salacia intermedia","authors":"Greesty Finotory Swandiny,&nbsp;Euis Filaila,&nbsp;Jepri Agung Priyanto,&nbsp;Puspa Dewi Narrij Lotulung,&nbsp;Vera Permatasari,&nbsp;Tia Okselni,&nbsp;Muhammad Eka Prastya,&nbsp;Tri Yuliani,&nbsp;Winarto Haryadi,&nbsp;Akhmad Darmawan,&nbsp;Gian Primahana","doi":"10.1007/s00203-025-04236-z","DOIUrl":"10.1007/s00203-025-04236-z","url":null,"abstract":"<div><p>Antibacterial screening of endophytic fungi from Salacia intermedia identified <i>Diaporthe longicolla</i> as a potent strain exhibiting good activity against multidrug-resistant <i>Staphylococcus aureus</i> and <i>Pseudomonas aeruginosa</i>, with an MIC of 39.1 µg/mL. Scale-up fermentation and chromatographic purification of this strain yielded three known compounds, which were cytochalasin J (<b>1</b>), cytochalasin H (<b>2</b>), and dicerandrol C (<b>3</b>), as identified by liquid chromatography – high mass resolution mass spectrometry (LC-HRMS) and nuclear magnetic resonance (NMR) spectroscopy. Among those compounds, dicerandrol C exhibited broad-spectrum antibacterial activity against ATCC and multidrug-resistant strains of <i>Bacillus subtilis</i>, <i>S. aureus</i>, and <i>P. aeruginosa</i>, and multidrug-resistant strains of <i>Klebsiella pneumoniae</i> and <i>Escherichia coli</i>, with MIC values ranging from 1.04 to 33.30 µM. Furthermore, dicerandrol C outperformed tetracycline in antibacterial efficacy against <i>S. aureus</i> ATCC 6538 and methicillin-resistant <i>S. aureus</i> (MRSA) strains (MIC of 1.04 µM). Further antibacterial evaluation showed that cytochalasin J (221.43 µM), cytochalasin H (202.59 µM), and dicerandrol C (tested at its MIC values of 1.04 µM for <i>S. aureus</i> ATCC 6538 and 16.65 µM for <i>P. aeruginosa</i> ATCC 15442) significantly inhibited bacterial biofilm formation. The biofilm inhibition percentages ranged from 61.09 to 78.17% for <i>S. aureus</i> and 41.22–56.83% for <i>P. aeruginosa</i>. In cytotoxicity assays against MCF-7 cells, all three compounds reduced cell viability (48.68–74.50%), with dicerandrol C demonstrating the highest potency. These findings highlight the potential of dicerandrol C as a powerful antibacterial and cytotoxic agent, facilitating further investigations into its therapeutic applications.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sexual spores in mushrooms: bioactive compounds, factors and molecular mechanisms of spore formation 蘑菇中的性孢子:孢子形成的生物活性化合物、因素和分子机制
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-21 DOI: 10.1007/s00203-024-04220-z
Dongmei Liu, Xueyan Sun, Xiwu Qi, Chengyuan Liang
{"title":"Sexual spores in mushrooms: bioactive compounds, factors and molecular mechanisms of spore formation","authors":"Dongmei Liu,&nbsp;Xueyan Sun,&nbsp;Xiwu Qi,&nbsp;Chengyuan Liang","doi":"10.1007/s00203-024-04220-z","DOIUrl":"10.1007/s00203-024-04220-z","url":null,"abstract":"<div><p>Throughout the life cycle of mushrooms, countless spores are released from the fruiting bodies. The spores have significant implications in the food and medicine industries due to pharmacological effects attributed to their bioactive ingredients. Moreover, high concentration of mushroom spores can induce extrinsic allergic reactions in mushroom cultivation workers. Therefore, it is important to study the bioactive ingredients of medicinal mushroom spores and molecular mechanisms of spore formation to develop healthcare products utilizing medicinal mushroom spores and breed sporeless/low- or high-spore-producing strains. This review summarizes the bioactive compounds of mushroom spores, the influence factors and molecular mechanisms of spore formation. Many bioactive compounds extracted from mushroom spores have a wide range of pharmacological activities. Several exogenous factors such as temperature, humidity, light, nutrients, and culture matrix, and endogenous factors such as metabolism-related enzymes activities and expression levels of genes related to sporulation individually or in combination affect the formation, size, and discharge of spores. The future research directions are also discussed for supplying references to analyze the bioactive compounds of spores and the molecular mechanisms of spore formation in mushrooms.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and evaluation of the antifungal and antibiofilm potential of aminochalcones 氨基查尔酮的合成及抗真菌和抗膜潜能评价
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-20 DOI: 10.1007/s00203-025-04244-z
Mayara Aparecida Rocha Garcia, Janaína de Cássia Orlandi Sardi, Mariana Bastos dos Santos, Josy Golsoni Lazarini, Pedro Luiz Rosalen, Luis Octávio Regasini
{"title":"Synthesis and evaluation of the antifungal and antibiofilm potential of aminochalcones","authors":"Mayara Aparecida Rocha Garcia,&nbsp;Janaína de Cássia Orlandi Sardi,&nbsp;Mariana Bastos dos Santos,&nbsp;Josy Golsoni Lazarini,&nbsp;Pedro Luiz Rosalen,&nbsp;Luis Octávio Regasini","doi":"10.1007/s00203-025-04244-z","DOIUrl":"10.1007/s00203-025-04244-z","url":null,"abstract":"<div><p><i>Candida</i> is a commensal fungus of clinical interest that commonly lives in oral cavity and intestine but can become an opportunist microrganism and cause severe infections. A serie of 10 aminochalcones were designed and synthetized to obtain compounds anti-<i>Candida</i> with potent and broad-spectrum activity. The most active compound <b>J34</b> demonstrated excellent in vitro activity against <i>Candida albicans</i>, <i>Candida tropicalis</i>, <i>Candida parapsilosis</i>, <i>Candida glabrata</i> and <i>Candida krusei</i> with minimum inhibitory concentration between 1.9 and 7.8 µg/mL. The association of aminochalcone <b>J34</b> with amphotericin B demonstrated synergistic effect against <i>C. albicans</i>, with Fractional Inhibiroty Concentration Index (FICI) value of 0.5. Subinhibitory concentration of <b>J34</b> inhibited the <i>C. albicans</i> adhesion to human keratinocytes. Treatment with <b>J34</b> reduced <i>C. albicans</i> biofilm formation, as well as acts on preformed biofilm in concentration-dependent mode. Time-kill curve demonstrated that <b>J34</b> had fungicidal action after 12 h of treatment. Preliminary mechanism of action study showed <b>J34</b> interacts with membrane ergosterol but does not act on fungal cell wall of <i>C. albicans</i>. In additon, in vivo studies using <i>Galleria mellonella</i> indicated low toxic effect of chalcone <b>J34</b> after 72 h of treatment.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Treponema denticola major surface protein (Msp): a key player in periodontal pathogenicity and immune evasion 密螺旋体主要表面蛋白(Msp):牙周致病性和免疫逃避的关键参与者
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-18 DOI: 10.1007/s00203-024-04223-w
Yue Zhao, Jiaxin Chen, Yifei Tian, Hong Huang, Feijun Zhao, Xuan Deng
{"title":"Treponema denticola major surface protein (Msp): a key player in periodontal pathogenicity and immune evasion","authors":"Yue Zhao,&nbsp;Jiaxin Chen,&nbsp;Yifei Tian,&nbsp;Hong Huang,&nbsp;Feijun Zhao,&nbsp;Xuan Deng","doi":"10.1007/s00203-024-04223-w","DOIUrl":"10.1007/s00203-024-04223-w","url":null,"abstract":"<div><p><i>Treponema denticola</i>, a bacterium that forms a “red complex” with <i>Porphyromonas gingivalis</i> and <i>Tannerella forsythia</i>, is associated with periodontitis, pulpitis, and other oral infections. The major surface protein (Msp) is a surface glycoprotein with a relatively well-established overall domain structure (N-terminal, central and C-terminal regions) and a controversial tertiary structure. As one of the key virulence factors of <i>T. denticola</i>, Msp is associated with adherence, immune response, and pore formation by the microorganism. It also mediates several pathological changes in histocytes, such as cytoskeleton disruption, neutrophil phagocytosis, and phosphoinositide balance interruption. In addition, the Msp of <i>T. denticola</i> is also an ortholog of the <i>Treponema pallidum</i> repeat (Tpr) proteins and Msp or Msp-like proteins that have been detected in other oral treponeme species. This review will discuss the structure, pathogenicity and homologs of Msp produced by <i>T. denticola</i>, illuminate the controversy regarding the structure and membrane topology of native Msp, explore the potential roles of Msp in the mechanism of <i>T. denticola</i> immune escape and provide an overview of the cytotoxicity and adherence ability of Msp. Further understanding of the structure and functions of Msp will offer new insights that will help promote further investigations of the pathogenic mechanisms of <i>T. denticola</i> and other treponemes, leading to more effective prophylactic or therapeutic treatments for relevant diseases.</p></div>","PeriodicalId":8279,"journal":{"name":"Archives of Microbiology","volume":"207 2","pages":""},"PeriodicalIF":2.3,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances in rapid detection of Helicobacter pylori by lateral flow assay 横向流动法快速检测幽门螺杆菌的研究进展
IF 2.3 3区 生物学
Archives of Microbiology Pub Date : 2025-01-16 DOI: 10.1007/s00203-025-04239-w
Yanjin Dong, Jie Zhu, Ning Pan
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