Journal of Microbiology

Review

Current status and perspectives on vaccine development against dengue virus infection: Jisang Park , Ju Kim , Yong-Suk Jang; J. Microbiol. 2022;60(3):247-254. Published online February 14, 2022; DOI: https://doi.org/10.1007/s12275-022-1625-y

Abstract: Dengue virus (DENV) consists of four serotypes in the family Flaviviridae and is a causative agent of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome. DENV is transmitted by mosquitoes, Aedes aegypti and A. albopictus, and is mainly observed in areas where vector mosquitoes live. The number of dengue cases reported by the World Health Organization increased more than 8-fold over the last two decades from 505,430 in 2000 to over 2.4 million in 2010 to 5.2 million in 2019. Although vaccine is the most effective
method
against DENV, only one commercialized vaccine exists, and it cannot be administered to children under 9 years of age. Currently, many researchers are working to resolve the various problems hindering the development of effective dengue vaccines; understanding of the viral antigen configuration would provide insight into the development of effective vaccines against DENV infection. In this review, the current status and perspectives on effective vaccine development for DENV are examined. In addition, a plausible direction for effective vaccine development against DENV is suggested.

Journal Article

Genome information of the cellulolytic soil actinobacterium Isoptericola dokdonensis DS-3 and comparative genomic analysis of the genus Isoptericola: Yurim Bae , Sujin Lee , Kitae Kim , Hyun-Kwon Lee , Soon-Kyeong Kwon , Jihyun F. Kim; J. Microbiol. 2021;59(11):1010-1018. Published online November 1, 2021; DOI: https://doi.org/10.1007/s12275-021-1452-6

Abstract: The actinobacterial group is regarded as a reservoir of biologically active natural products and hydrolytic enzymes with the potential for biomedical and industrial applications. Here, we present the complete genome sequence of Isoptericola dokdonensis DS-3 isolated from soil in Dokdo, small islets in the East Sea of Korea. This actinomycete harbors a large number of genes encoding carbohydrate-degrading enzymes, and its activity to degrade carboxymethyl cellulose into glucose was experimentally evaluated. Since the genus Isoptericola was proposed after reclassification based on phylogenetic analysis, strains of Isoptericola have been continuously isolated from diverse environments and the importance of this genus in the ecosystem has been suggested by recent culturomic or metagenomic studies. The phylogenic relationships of the genus tended to be closer among strains that had been isolated from similar habitats. By analyzing the properties of published genome sequences of seven defined species in the genus, a large number of genes for carbohydrate hydrolysis and utilization, as well as several biosynthetic gene clusters for secondary metabolites, were identified. Genomic information of I. dokdonensis DS-3 together with comparative analysis of the genomes of Isoptericola provides insights into understanding this actinobacterial group with a potential for industrial applications.

Published Erratum

Erratum to: Physiological roles of catalases Cat1 and Cat2 in Myxococcus xanthus: Yoshio Kimura , Yuri Yoshioka , Kie Toshikuni; J. Microbiol. 2023;61(2):271-271.; DOI: https://doi.org/10.1007/s12275-023-00025-9

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