{"title":"肺炎链球菌靶向异食识别和逃避的分子机制:肺炎球菌作为细胞内细菌的重新解释","authors":"Michinaga Ogawa, Sayaka Shizukuishi, Yukihiro Akeda, Makoto Ohnishi","doi":"10.1111/1348-0421.13060","DOIUrl":null,"url":null,"abstract":"<p><i>Streptococcus pneumoniae</i> is a major, encapsulated Gram-positive pathogen that causes diseases including community-acquired pneumonia, meningitis, and sepsis. This pathogen colonizes the nasopharyngeal epithelia asymptomatically but can often migrate to sterile tissues and cause life-threatening invasive infections (invasive pneumococcal disease). Although multivalent pneumococcal polysaccharides and conjugate vaccines are available and effective, they also have major shortcomings with respect to the emergence of vaccine-resistant serotypes. Therefore, alternative therapeutic approaches are needed, and the molecular analysis of host–pathogen interactions and their applications to pharmaceutical development and clinical practice has recently received increased attention. In this review, we introduce pneumococcal surface virulence factors involved in pathogenicity and highlight recent advances in our understanding of host autophagy recognition mechanisms against intracellular <i>S. pneumoniae</i> and pneumococcal evasion from autophagy.</p>","PeriodicalId":18679,"journal":{"name":"Microbiology and Immunology","volume":"67 5","pages":"224-227"},"PeriodicalIF":1.9000,"publicationDate":"2023-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Molecular mechanism of Streptococcus pneumoniae–targeting xenophagy recognition and evasion: Reinterpretation of pneumococci as intracellular bacteria\",\"authors\":\"Michinaga Ogawa, Sayaka Shizukuishi, Yukihiro Akeda, Makoto Ohnishi\",\"doi\":\"10.1111/1348-0421.13060\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><i>Streptococcus pneumoniae</i> is a major, encapsulated Gram-positive pathogen that causes diseases including community-acquired pneumonia, meningitis, and sepsis. This pathogen colonizes the nasopharyngeal epithelia asymptomatically but can often migrate to sterile tissues and cause life-threatening invasive infections (invasive pneumococcal disease). Although multivalent pneumococcal polysaccharides and conjugate vaccines are available and effective, they also have major shortcomings with respect to the emergence of vaccine-resistant serotypes. Therefore, alternative therapeutic approaches are needed, and the molecular analysis of host–pathogen interactions and their applications to pharmaceutical development and clinical practice has recently received increased attention. In this review, we introduce pneumococcal surface virulence factors involved in pathogenicity and highlight recent advances in our understanding of host autophagy recognition mechanisms against intracellular <i>S. pneumoniae</i> and pneumococcal evasion from autophagy.</p>\",\"PeriodicalId\":18679,\"journal\":{\"name\":\"Microbiology and Immunology\",\"volume\":\"67 5\",\"pages\":\"224-227\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2023-03-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microbiology and Immunology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1111/1348-0421.13060\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"IMMUNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microbiology and Immunology","FirstCategoryId":"3","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/1348-0421.13060","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
Molecular mechanism of Streptococcus pneumoniae–targeting xenophagy recognition and evasion: Reinterpretation of pneumococci as intracellular bacteria
Streptococcus pneumoniae is a major, encapsulated Gram-positive pathogen that causes diseases including community-acquired pneumonia, meningitis, and sepsis. This pathogen colonizes the nasopharyngeal epithelia asymptomatically but can often migrate to sterile tissues and cause life-threatening invasive infections (invasive pneumococcal disease). Although multivalent pneumococcal polysaccharides and conjugate vaccines are available and effective, they also have major shortcomings with respect to the emergence of vaccine-resistant serotypes. Therefore, alternative therapeutic approaches are needed, and the molecular analysis of host–pathogen interactions and their applications to pharmaceutical development and clinical practice has recently received increased attention. In this review, we introduce pneumococcal surface virulence factors involved in pathogenicity and highlight recent advances in our understanding of host autophagy recognition mechanisms against intracellular S. pneumoniae and pneumococcal evasion from autophagy.
期刊介绍:
Microbiology and Immunology is published in association with Japanese Society for Bacteriology, Japanese Society for Virology, and Japanese Society for Host Defense Research. It is peer-reviewed publication that provides insight into the study of microbes and the host immune, biological and physiological responses.
Fields covered by Microbiology and Immunology include:Bacteriology|Virology|Immunology|pathogenic infections in human, animals and plants|pathogenicity and virulence factors such as microbial toxins and cell-surface components|factors involved in host defense, inflammation, development of vaccines|antimicrobial agents and drug resistance of microbes|genomics and proteomics.