Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan

Some <i>Corynebacterium</i> strains produce toxins that are similar to those produced by <i>Corynebacterium diphtheriae</i>, leading to human infections that are often transmitted through zoonotic diseases. A novel species, which is formerly classified as <i>Corynebacte...

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Main Authors: Chie Shitada, Mikoto Moriguchi, Hideyuki Hayashi, Kazutoshi Matsumoto, Misato Mori, Eisuke Tokuoka, Shunsuke Yahiro, Shouichirou Gejima, Kazuhiro Horiba, Takatoshi Yamamoto, Motohide Takahashi, Makoto Kuroda
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Language:English
Published: MDPI AG 2024-10-01
Series:Zoonotic Diseases
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Online Access:https://www.mdpi.com/2813-0227/4/4/20
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author Chie Shitada
Mikoto Moriguchi
Hideyuki Hayashi
Kazutoshi Matsumoto
Misato Mori
Eisuke Tokuoka
Shunsuke Yahiro
Shouichirou Gejima
Kazuhiro Horiba
Takatoshi Yamamoto
Motohide Takahashi
Makoto Kuroda
author_facet Chie Shitada
Mikoto Moriguchi
Hideyuki Hayashi
Kazutoshi Matsumoto
Misato Mori
Eisuke Tokuoka
Shunsuke Yahiro
Shouichirou Gejima
Kazuhiro Horiba
Takatoshi Yamamoto
Motohide Takahashi
Makoto Kuroda
author_sort Chie Shitada
collection DOAJ
description Some <i>Corynebacterium</i> strains produce toxins that are similar to those produced by <i>Corynebacterium diphtheriae</i>, leading to human infections that are often transmitted through zoonotic diseases. A novel species, which is formerly classified as <i>Corynebacterium ulcerans</i> lineage II, was recently re-evaluated and renamed “<i>Corynebacterium ramonii</i> sp. nov.”. We isolated <i>C. ramonii</i> from a human skin ulcer in Japan in 2023 (KCU0303-001) and identified it as ST344 using a genomic analysis. In addition, <i>C. ramonii</i> KPHES-18084 (ST344) and six strains of <i>C. ulcerans</i> (ST337/ST1011) were isolated from the oral cavities of 7/208 rescued cats (3.4%). The human ulcer strain KCU0303-001 and the rescued cat strain KPHES-18084 were found to be ST344 and closely related clones by core-genome and pan-genome analyses, suggesting that ST344 may be endemic to both clinical and companion animals in Japan. In support of this finding, another clinical isolate of ST344 (TSU-28 strain) was reported in Japan in 2019. Although ST337 is the most common <i>C. ulcerans</i> infection, the second most recent clinical isolate of <i>C. ramonii</i>, ST344, might be increasing; therefore, further genomic surveillance is required to monitor <i>C. ramonii</i> and <i>C. ulcerans</i> infections.
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spelling doaj-art-87e40adc73214a819c60284a101cf50e2025-08-20T02:51:10ZengMDPI AGZoonotic Diseases2813-02272024-10-014423424410.3390/zoonoticdis4040020Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in JapanChie Shitada0Mikoto Moriguchi1Hideyuki Hayashi2Kazutoshi Matsumoto3Misato Mori4Eisuke Tokuoka5Shunsuke Yahiro6Shouichirou Gejima7Kazuhiro Horiba8Takatoshi Yamamoto9Motohide Takahashi10Makoto Kuroda11Toxin and Biologicals Research Laboratory, Kumamoto Health Science University, 325 Izumi-machi, Kita-ku, Kumamoto 861-5598, JapanKumamoto Rosai Hospital Clinical Laboratory Center, Yatsushiro 866-0826, JapanKumamoto University Hospital Clinical Laboratory Center, Kumamoto 860-8556, JapanKumamoto Prefectural Institute of Public Health and Environmental Science, Uto 869-0425, JapanKumamoto Prefectural Institute of Public Health and Environmental Science, Uto 869-0425, JapanKumamoto Prefectural Institute of Public Health and Environmental Science, Uto 869-0425, JapanKumamoto Prefectural Institute of Public Health and Environmental Science, Uto 869-0425, JapanKumamoto Prefectural Institute of Public Health and Environmental Science, Uto 869-0425, JapanPathogen Genomics Center, National Institute of Infectious Diseases, Tokyo 162-8640, JapanDepartment of Medical Technology, Faculty of Health Sciences, Kumamoto Health Science University, 325 Izumi-machi, Kita-ku, Kumamoto 861-5598, JapanToxin and Biologicals Research Laboratory, Kumamoto Health Science University, 325 Izumi-machi, Kita-ku, Kumamoto 861-5598, JapanDepartment of Medical Technology, Faculty of Health Sciences, Kumamoto Health Science University, 325 Izumi-machi, Kita-ku, Kumamoto 861-5598, JapanSome <i>Corynebacterium</i> strains produce toxins that are similar to those produced by <i>Corynebacterium diphtheriae</i>, leading to human infections that are often transmitted through zoonotic diseases. A novel species, which is formerly classified as <i>Corynebacterium ulcerans</i> lineage II, was recently re-evaluated and renamed “<i>Corynebacterium ramonii</i> sp. nov.”. We isolated <i>C. ramonii</i> from a human skin ulcer in Japan in 2023 (KCU0303-001) and identified it as ST344 using a genomic analysis. In addition, <i>C. ramonii</i> KPHES-18084 (ST344) and six strains of <i>C. ulcerans</i> (ST337/ST1011) were isolated from the oral cavities of 7/208 rescued cats (3.4%). The human ulcer strain KCU0303-001 and the rescued cat strain KPHES-18084 were found to be ST344 and closely related clones by core-genome and pan-genome analyses, suggesting that ST344 may be endemic to both clinical and companion animals in Japan. In support of this finding, another clinical isolate of ST344 (TSU-28 strain) was reported in Japan in 2019. Although ST337 is the most common <i>C. ulcerans</i> infection, the second most recent clinical isolate of <i>C. ramonii</i>, ST344, might be increasing; therefore, further genomic surveillance is required to monitor <i>C. ramonii</i> and <i>C. ulcerans</i> infections.https://www.mdpi.com/2813-0227/4/4/20<i>Corynebacterium ramonii</i>ST344<i>Corynebacterium ulcerans</i>ulcerzoonotic diseasesdiphtheria toxin
spellingShingle Chie Shitada
Mikoto Moriguchi
Hideyuki Hayashi
Kazutoshi Matsumoto
Misato Mori
Eisuke Tokuoka
Shunsuke Yahiro
Shouichirou Gejima
Kazuhiro Horiba
Takatoshi Yamamoto
Motohide Takahashi
Makoto Kuroda
Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
Zoonotic Diseases
<i>Corynebacterium ramonii</i>
ST344
<i>Corynebacterium ulcerans</i>
ulcer
zoonotic diseases
diphtheria toxin
title Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
title_full Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
title_fullStr Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
title_full_unstemmed Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
title_short Genomic Analysis of Novel Bacterial Species <i>Corynebacterium ramonii</i> ST344 Clone Strains Isolated from Human Skin Ulcer and Rescued Cats in Japan
title_sort genomic analysis of novel bacterial species i corynebacterium ramonii i st344 clone strains isolated from human skin ulcer and rescued cats in japan
topic <i>Corynebacterium ramonii</i>
ST344
<i>Corynebacterium ulcerans</i>
ulcer
zoonotic diseases
diphtheria toxin
url https://www.mdpi.com/2813-0227/4/4/20
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