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Asin J, Childress AL, Dervas E, Garner MM, Uzal FA, Wellehan JFX, Henderson EE, Armien AG. Helicosporidium sp. infection in a California kingsnake ( Lampropeltis californiae): Spillover of a pathogen of invertebrates to a vertebrate host. Vet Pathol 2024:3009858241259179. [PMID: 38881033 DOI: 10.1177/03009858241259179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Helicosporidium is a genus of nonphotosynthetic, green algae in the family Chlorellaceae, closely related to Prototheca. It is a known pathogen of invertebrates, and its occurrence in vertebrates has not been documented. A captive, 10-month-old, male, albino California kingsnake (Lampropeltis californiae) was submitted for necropsy. Gross examination revealed hemorrhagic laryngitis and a red mottled liver. Histologically, intravascular, intramonocytic/macrophagic and extracellular, eukaryotic organisms were observed in all tissues. These organisms stained positive with Grocott-Gomori methenamine silver and periodic acid-Schiff and were variably acid-fast and gram-positive. Ultrastructural analysis revealed approximately 4 µm vegetative multiplication forms and cysts with 3 parallel ovoid cells and a helically coiled filamentous cell. A polymerase chain reaction with primers targeting Prototheca, amplicon sequencing, and Bayesian phylogenetic analysis confirmed it clustered within Helicosporidium sp. with 100% posterior probability. The genus Helicosporidium was found to nest within the genus Prototheca, forming a clade with Prototheca wickerhamii with 80% posterior probability.
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Affiliation(s)
- Javier Asin
- University of California, Davis, San Bernardino, CA
| | | | - Eva Dervas
- University of Zürich, Zürich, Switzerland
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2
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Lanave G, Pellegrini F, Palermo G, Zini E, Mercuriali E, Zagarella P, Bányai K, Camero M, Martella V. Identification of Prototheca from the Cerebrospinal Fluid of a Cat with Neurological Signs. Vet Sci 2023; 10:681. [PMID: 38133232 PMCID: PMC10747436 DOI: 10.3390/vetsci10120681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/10/2023] [Accepted: 11/27/2023] [Indexed: 12/23/2023] Open
Abstract
Prototheca infections are rare in cats, and they are usually associated with cutaneous or subcutaneous infections by P. wickerhamii, with no evidence of neurological signs or systemic disease. In this study, we report the identification of prototheca in the cerebrospinal fluid (CSF) of a cat with neurological symptoms. Fourteen CSF samples were gathered from cats presented with neurological disease between 2012 and 2014. The inclusion criteria for the samples were an increase in CSF protein and cell number (pleocytosis), suggestive of an infectious inflammatory status of the central nervous system (CNS). Nine samples fulfilled the inclusion criteria (inflammatory samples), while five samples, used as control, did not (non-inflammatory samples). All the samples were screened molecularly for different pathogens associated with CNS disease in cats, including prototheca. Out of 14 CSF samples, only one inflammatory sample tested positive for prototheca. Upon sequence and phylogenetic analysis of the amplicon, the strain was characterized as P. bovis. This report is the first documented evidence of prototheca in the cerebrospinal fluid of a cat with neurological signs. Prototheca should be considered in the diagnostics procedures on the CNS of cats presented with infectious diseases.
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Affiliation(s)
- Gianvito Lanave
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, 70010 Bari, Italy; (G.L.); (F.P.); (V.M.)
| | - Francesco Pellegrini
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, 70010 Bari, Italy; (G.L.); (F.P.); (V.M.)
| | - Giuseppe Palermo
- Veterinary Orthopaedic Traumatologic Centre of Arenzano, Arenzano, 16011 Genova, Italy; (G.P.); (E.M.); (P.Z.)
| | - Eric Zini
- Veterinary Institute of Novara, Granozzo con Monticello, 20060 Novara, Italy;
- Department of Animal Medicine, Production and Health, University of Padova, 35020 Legnaro, Italy
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, CH-8057 Zurich, Switzerland
| | - Edy Mercuriali
- Veterinary Orthopaedic Traumatologic Centre of Arenzano, Arenzano, 16011 Genova, Italy; (G.P.); (E.M.); (P.Z.)
- Veterinary Institute of Novara, Granozzo con Monticello, 20060 Novara, Italy;
| | - Paolo Zagarella
- Veterinary Orthopaedic Traumatologic Centre of Arenzano, Arenzano, 16011 Genova, Italy; (G.P.); (E.M.); (P.Z.)
| | - Krisztián Bányai
- Veterinary Medical Research Institute, Hungarian Academy of Sciences, H-1143 Budapest, Hungary;
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, H-1078 Budapest, Hungary
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, 70010 Bari, Italy; (G.L.); (F.P.); (V.M.)
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, 70010 Bari, Italy; (G.L.); (F.P.); (V.M.)
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Cullen GD, Yetmar ZA, Fida M, Abu Saleh OM. Prototheca Infection: A Descriptive Study. Open Forum Infect Dis 2023; 10:ofad294. [PMID: 37389225 PMCID: PMC10300632 DOI: 10.1093/ofid/ofad294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/02/2023] [Indexed: 07/01/2023] Open
Abstract
Prototheca is a microalgae known to cause infections in humans, with protothecosis most commonly presenting as olecranon bursitis or localized soft tissue infection. Disseminated disease can be seen in immunocompromised patients. In this retrospective single-institution case series, we describe our experience with 7 patients with Prototheca infections.
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Affiliation(s)
- Grace D Cullen
- Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
| | - Zachary A Yetmar
- Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Madiha Fida
- Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
- Division of Public Health, Infectious Diseases, and Occupational Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Omar M Abu Saleh
- Correspondence: Omar M. Abu Saleh, MBBS, Mayo Clinic, 200 First St S.W., Rochester, MN 55905 ()
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Proskurnicka A, Żupnik K, Bakuła Z, Iskra M, Rösler U, Jagielski T. Drug Susceptibility Profiling of Prototheca Species Isolated from Cases of Human Protothecosis. Antimicrob Agents Chemother 2023; 67:e0162722. [PMID: 36943065 PMCID: PMC10112244 DOI: 10.1128/aac.01627-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Prototheca are unicellular, achlorophyllous, yeast-like microalgae that occur in a wide range of natural habitats. At least five species have been implicated as the causative agents of opportunistic infections of men. Human protothecosis typically manifests as cutaneous, articular, or systemic disease. Treatment is largely empirical with poorly predictable and often unsuccessful outcomes. This is largely due to the frequently observed resistance of Prototheca species to conventional antimicrobial agents. This work is the first to perform drug susceptibility profiling exclusively on isolates from human cases of protothecosis. A total of 23 such isolates were tested against amphotericin B and 9 azoles, including efinaconazole and luliconazole, whose activities against Prototheca have never been studied before. Efinaconazole was the most active, with median minimum inhibitory concentration (MIC) and minimum algicidal concentration (MAC) values of 0.031 mg/L and 0.063 mg/L, respectively. Fluconazole and luliconazole had the lowest activity, with median MIC and MAC values of 128 mg/L. To conclude, amphotericin B and most of the azoles showed in vitro activity, with an algicidal rather than algistatic effect, against Prototheca. Still, the activity of individual drugs differed significantly between the species and even between strains of the same species. These differences can be attributed to a species-specific potential for acquiring drug resistance, which, in turn, might be linked to the treatment history of the patient from whom the strain was recovered. The results of this study underscore the potential clinical utility of efinaconazole as a promising therapeutic agent for the treatment of human protothecosis.
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Affiliation(s)
- Angelika Proskurnicka
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Kinga Żupnik
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Zofia Bakuła
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Mateusz Iskra
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Uwe Rösler
- Institute for Animal Hygiene and Environmental Health, Freie Universität Berlin, Berlin, Germany
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
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Bozzo G, Dimuccio MM, Casalino G, Ceci E, Corrente M. New Approaches for risk assessment and management of bovine protothecosis. Saudi J Biol Sci 2022; 29:103368. [PMID: 35846387 PMCID: PMC9283663 DOI: 10.1016/j.sjbs.2022.103368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/30/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022] Open
Abstract
Protothecosis is a potential zoonosis related to bovine mastitis. In several countries, a higher incidence of protothecal bovine mastitis that is being recorded and the resistance of Prototheca species to various factors (chlorine, high temperatures, antimicrobial and antiseptic treatments, pH variations), make it difficult to control its spread among farms. The authors aim to describe the infection caused by microalgae, focusing on the problems within cattle farms and proposing new approaches to farm management, based on Regulation (EU) No 2016/429 on transmissible animal diseases. This new flexible approach, based on risk analysis, is a further tool in protecting against Prototheca species. The list of transmissible animal diseases under Regulation (EU) No 2016/429 includes those caused by microorganisms resistant to antimicrobials, which can have important implications for human and animal health, feed and food safety. This approach would involve a series of changes to the rules used for Official Controls (Regulation (EU) No 2017/625) moving from the concept of the food chain to that of the agri-food chain.
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Organismal and cellular interactions in vertebrate-alga symbioses. Biochem Soc Trans 2022; 50:609-620. [PMID: 35225336 DOI: 10.1042/bst20210153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 12/29/2022]
Abstract
Photosymbioses, intimate interactions between photosynthetic algal symbionts and heterotrophic hosts, are well known in invertebrate and protist systems. Vertebrate animals are an exception where photosynthetic microorganisms are not often considered part of the normal vertebrate microbiome, with a few exceptions in amphibian eggs. Here, we review the breadth of vertebrate diversity and explore where algae have taken hold in vertebrate fur, on vertebrate surfaces, in vertebrate tissues, and within vertebrate cells. We find that algae have myriad partnerships with vertebrate animals, from fishes to mammals, and that those symbioses range from apparent mutualisms to commensalisms to parasitisms. The exception in vertebrates, compared with other groups of eukaryotes, is that intracellular mutualisms and commensalisms with algae or other microbes are notably rare. We currently have no clear cell-in-cell (endosymbiotic) examples of a trophic mutualism in any vertebrate, while there is a broad diversity of such interactions in invertebrate animals and protists. This functional divergence in vertebrate symbioses may be related to vertebrate physiology or a byproduct of our adaptive immune system. Overall, we see that diverse algae are part of the vertebrate microbiome, broadly, with numerous symbiotic interactions occurring across all vertebrate and many algal clades. These interactions are being studied for their ecological, organismal, and cellular implications. This synthesis of vertebrate-algal associations may prove useful for the development of novel therapeutics: pairing algae with medical devices, tissue cultures, and artificial ecto- and endosymbioses.
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Yamashita M, Ikeda M, Kato I, Ohama Y, Ando M, Ikemura M, Jubishi D, Kanno Y, Okamoto K, Umeyama T, Nakamura S, Miyazaki Y, Okugawa S, Moriya K. Protothecosis in the mucosa of the pharynx mimicking pharyngeal cancer in an immunocompetent individual: a case report. Ann Clin Microbiol Antimicrob 2022; 21:5. [PMID: 35164794 PMCID: PMC8845227 DOI: 10.1186/s12941-022-00495-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 01/23/2022] [Indexed: 11/18/2022] Open
Abstract
Background Protothecosis is a rare infection in humans and animals caused by the achlorophyllic algae Prototheca species. More than half of the protothecosis cases are cutaneous infections, and most cases are observed in immunocompromised individuals. Case presentation We report a case of Prototheca wickerhamii infection in the mucosa of the pharynx in a 53-year-old immunocompetent woman with an incidentally found mass lesion at the left tongue base. Histopathological findings of the mass lesion suggested cryptococcosis, but P. wickerhamii was identified from the oropharynx scrape culture based on DNA sequencing. After surgical resection, fosfluconazole treatment was initiated, and subsequently, treatment was switched to topical amphotericin B. The residual mass lesion did not deteriorate during the 4-month antifungal treatment and 1-year observational period. Conclusions Prototheca species can be easily misdiagnosed as yeasts because of their morphological and pathological similarities. Prototheca, in addition to Cryptococcus should be considered if slow-growing, large Gram-positive organisms are encountered. Lactophenol cotton blue staining of the colony helps distinguish these organisms. Further study is needed to determine the appropriate treatment according to the infection focus.
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Affiliation(s)
- Marie Yamashita
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mahoko Ikeda
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan. .,Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Ito Kato
- Department of Clinical Laboratory, National Hospital Organization Tokyo Medical Center, 2-5-1, Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| | - Yuki Ohama
- Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Mizuo Ando
- Department of Otorhinolaryngology and Head and Neck Surgery, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Masako Ikemura
- Department of Pathology, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Daisuke Jubishi
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yoshiaki Kanno
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Koh Okamoto
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Takashi Umeyama
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, 1-23-1, Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shigeki Nakamura
- Department of Microbiology, Tokyo Medical University, 6-1-1, Shinjuku, Shinjuku-ku, Tokyo, 160-8402, Japan
| | - Yoshitsugu Miyazaki
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases, 1-23-1, Toyama, Shinjuku-ku, Tokyo, 162-8640, Japan
| | - Shu Okugawa
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kyoji Moriya
- Department of Infectious Diseases, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.,Department of Infection Control and Prevention, The University of Tokyo Hospital, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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8
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Kano R, Kazuo Satoh, Yaguchi T, Masuda M, Makimura K, de Hoog GS. Phenotypic Characteristics of <i>Prototheca</i> Species Occurring in Humans and Animals. Med Mycol J 2022; 63:17-20. [DOI: 10.3314/mmj.21-00018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rui Kano
- Department of Veterinary Dermatology, Nihon University College of Bioresource Sciences
| | - Kazuo Satoh
- General Medical Education and Research Center, Teikyo University
| | | | - Michiaki Masuda
- Department of Microbiology, Dokkyo Medical University School of Medicine
| | | | - G. Sybren de Hoog
- Center of Expertise in Mycology, Radboud University Medical Center/Canisius Wilhelmina Hospital
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Plieger T, Wolf M. 18S and ITS2 rDNA sequence-structure phylogeny of Prototheca (Chlorophyta, Trebouxiophyceae). Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00971-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractProtothecosis is an infectious disease caused by organisms currently classified within the green algal genus Prototheca. The disease can manifest as cutaneous lesions, olecranon bursitis or disseminated or systemic infections in both immunocompetent and immunosuppressed patients. Concerning diagnostics, taxonomic validity is important. Prototheca, closely related to the Chlorella species complex, is known to be polyphyletic, branching with Auxenochlorella and Helicosporidium. The phylogeny of Prototheca was discussed and revisited several times in the last decade; new species have been described. Phylogenetic analyses were performed using ribosomal DNA (rDNA) and partial mitochondrial cytochrome b (cytb) sequence data. In this work we use Internal Transcribed Spacer 2 (ITS2) as well as 18S rDNA data. However, for the first time, we reconstruct phylogenetic relationships of Prototheca using primary sequence and RNA secondary structure information simultaneously, a concept shown to increase robustness and accuracy of phylogenetic tree estimation. Using encoded sequence-structure data, Neighbor-Joining, Maximum-Parsimony and Maximum-Likelihood methods yielded well-supported trees in agreement with other trees calculated on rDNA; but differ in several aspects from trees using cytb as a phylogenetic marker. ITS2 secondary structures of Prototheca sequences are in agreement with the well-known common core structure of eukaryotes but show unusual differences in their helix lengths. An elongation of the fourth helix of some species seems to have occurred independently in the course of evolution.
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10
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Fidelis CE, Franke M, de Abreu LCR, Jagielski T, Ribeiro MG, Dos Santos MV, Gonçalves JL. MALDI-TOF MS identification of Prototheca algae associated with bovine mastitis. J Vet Diagn Invest 2021; 33:1168-1171. [PMID: 34353173 DOI: 10.1177/10406387211036459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We evaluated the use of MALDI-TOF MS for the identification of 3 major, dairy-associated Prototheca species, namely, Prototheca bovis (formerly P. zopfii genotype 2), P. blaschkeae, and P. ciferrii (formerly P. zopfii genotype 1). The MALDI-TOF MS spectra established for those species were introduced into the reference spectra library of the Bruker Biotyper MALDI-TOF MS analysis software. Next, 31 Prototheca isolates from Holstein cows with mastitis, from herds located in the midwestern area of São Paulo State, Brazil, were subjected to MALDI-TOF MS profiling. MALDI-TOF MS allowed identification of 22 of 27 P. bovis and 3 of 4 P. blaschkeae isolates with scores >2.0, with 5 of 27 P. bovis and 1 of 4 P. blaschkeae isolates identified only to the genus level. With our extended algae database, MALDI-TOF MS can contribute to quick and effective speciation of Prototheca from mastitis cases.
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Affiliation(s)
- Carlos E Fidelis
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Manoela Franke
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Letícia C R de Abreu
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Márcio G Ribeiro
- Department of Animal Production and Preventive Veterinary Medicine, School of Veterinary Medicine and Animal Sciences, São Paulo State University-UNESP, Botucatu, São Paulo, Brazil
| | - Marcos V Dos Santos
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil
| | - Juliano L Gonçalves
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of São Paulo-USP, Pirassununga, São Paulo, Brazil.,Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
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11
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Lu Y, Zhang X, Ni F, Xia W. Cutaneous Protothecosis with Meningitis Due to Prototheca wickerhamii in an Immunocompetent Teenager: Case Report and Literature Review. Infect Drug Resist 2021; 14:2787-2794. [PMID: 34321895 PMCID: PMC8312625 DOI: 10.2147/idr.s320795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 06/25/2021] [Indexed: 12/01/2022] Open
Abstract
Human protothecosis is a rare infection caused by Prototheca spp., which are environmental achloric algae ubiquitously existing in nature. Members of the genus of Prototheca usually cause localized infection that affects the skin or wounds. Systemic infection is extremely rare and tends to occur in immunocompromised patients. Here, we report a case of cutaneous protothecosis and meningitis due to Prototheca wickerhamii in an immunocompetent teenager who obtained full-body tattoos at the time of infection. To the best of our knowledge, this is the first description of P. wickerhamii isolated from both skin tissue and cerebrospinal fluid. The data contained in this report will increase our understanding of this pathogen and elucidate the most optimal treatment.
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Affiliation(s)
- Yanfei Lu
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Xiaohui Zhang
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Fang Ni
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
| | - Wenying Xia
- Department of Laboratory Medicine, Jiangsu Province Hospital and Nanjing Medical University First Affiliated Hospital, Nanjing, People's Republic of China.,National Key Clinical Department of Laboratory Medicine, Nanjing, People's Republic of China
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12
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Hofbauer WK. Toxic or Otherwise Harmful Algae and the Built Environment. Toxins (Basel) 2021; 13:465. [PMID: 34209446 PMCID: PMC8310063 DOI: 10.3390/toxins13070465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 12/30/2022] Open
Abstract
This article gives a comprehensive overview on potentially harmful algae occurring in the built environment. Man-made structures provide diverse habitats where algae can grow, mainly aerophytic in nature. Literature reveals that algae that is potentially harmful to humans do occur in the anthropogenic environment in the air, on surfaces or in water bodies. Algae may negatively affect humans in different ways: they may be toxic, allergenic and pathogenic to humans or attack human structures. Toxin-producing alga are represented in the built environment mainly by blue green algae (Cyanoprokaryota). In special occasions, other toxic algae may also be involved. Green algae (Chlorophyta) found airborne or growing on manmade surfaces may be allergenic whereas Cyanoprokaryota and other forms may not only be toxic but also allergenic. Pathogenicity is found only in a special group of algae, especially in the genus Prototheca. In addition, rare cases with infections due to algae with green chloroplasts are reported. Algal action may be involved in the biodeterioration of buildings and works of art, which is still discussed controversially. Whereas in many cases the disfigurement of surfaces and even the corrosion of materials is encountered, in other cases a protective effect on the materials is reported. A comprehensive list of 79 taxa of potentially harmful, airborne algae supplemented with their counterparts occurring in the built environment, is given. Due to global climate change, it is not unlikely that the built environment will suffer from more and higher amounts of harmful algal species in the future. Therefore, intensified research in composition, ecophysiology and development of algal growth in the built environment is indicated.
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Affiliation(s)
- Wolfgang Karl Hofbauer
- Umwelt, Hygiene und Sensorik, Fraunhofer-Institut für Bauphysik, 83626 Valley, Bavaria, Germany
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13
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Watanabe T, Ishikawa T, Sato H, Hirose N, Nonaka L, Matsumura K, Masubuchi A, Nishimura K, Masuda M. Characterization of Prototheca CYP51/ERG11 as a possible target for therapeutic drugs. Med Mycol 2021; 59:855-863. [PMID: 33838030 DOI: 10.1093/mmy/myab012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/17/2021] [Indexed: 11/13/2022] Open
Abstract
Prototheca spp. are achlorophyllous algae, ubiquitous in nature. An increasing number of human and animal cases of Prototheca infection (protothecosis) are reported, and antifungal azoles, which inhibit sterol 14α-demethylase (CYP51/ERG11) involved in ergosterol biosynthesis, have empirically been used for the treatment of protothecosis. Although Prototheca, like fungi, has ergosterol in the cell membrane, efficacy of the antifungal azoles in the treatment of protothecosis is controversial. For investigating the interaction of azole drugs with Prototheca CYP51/ERG11, the CYP51/ERG11 genomic genes of four strains of P. wickerhamii and one strain each of P. cutis and P. miyajii were isolated and characterized in this study. Compared with the CYP51/ERG11 gene of chlorophyllous Auxenochlorella Protothecoides, it is possible that ProtothecaCYP51/ERG11 gene, whose exon-intron structure appeared to be species-specific, lost introns associated with the loss of photosynthetic activity. Analysis of the deduced amino acid sequences revealed that Prototheca CYP51/ERG11 and fungal CYP51/ERG11 are phylogenetically distant from each other although their overall structures are similar. Our basic in silico studies predicted that antifungal azoles could bind to the catalytic pocket of Prototheca CYP51/ERG11. It was also suggested that amino acid residues away from the catalytic pocket might affect the drug susceptibility. The results of this study may provide useful insights into the phylogenetic taxonomy of Prototheca spp. in relationship to the CYP51/ERG11 structure and development of novel therapeutic drugs for the treatment of protothecosis. LAY SUMMARY Cases of infection by microalgae of Prototheca species are increasing. However, effective treatment has not been established yet. In this study, gene and structure of Prototheca's CYP51/ERG11, an enzyme which might serve as a target for therapeutic drugs, were characterized for the first time.
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Affiliation(s)
- Takahisa Watanabe
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan.,Hirara Clinic, Okinawa 906-0012, Japan
| | - Tomohiro Ishikawa
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Hirotaka Sato
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Noriyuki Hirose
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan.,BD Japan, Co., Ltd., Tokyo 107-0052, Japan
| | - Lisa Nonaka
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan.,Department of Nutritional Science, Faculty of Human Life Science, Shokei University, Kumamoto 862-8678, Japan
| | - Kaori Matsumura
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Akira Masubuchi
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Kazuko Nishimura
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan.,First Laboratories, Co. Ltd., Kanagawa 211-0013, Japan
| | - Michiaki Masuda
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
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14
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15
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Riet-Correa F, Carmo PMSD, Uzal FA. Protothecosis and chlorellosis in sheep and goats: a review. J Vet Diagn Invest 2020; 33:283-287. [PMID: 33319632 DOI: 10.1177/1040638720978781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Protothecosis and chlorellosis are sporadic algal diseases that can affect small ruminants. In goats, protothecosis is primarily associated with lesions in the nose and should be included in the differential diagnosis of causes of rhinitis. In sheep, chlorellosis causes typical green granulomatous lesions in various organs. Outbreaks of chlorellosis have been reported in sheep consuming stagnant water, grass from sewage-contaminated areas, and pastures watered by irrigation canals or by effluents from poultry-processing plants. Prototheca and Chlorella are widespread in the environment, and environmental and climatic changes promoted by anthropogenic activities may have increased the frequency of diseases produced by them. The diagnosis of these diseases must be based on gross, microscopic, and ultrastructural lesions, coupled with detection of the agent by immunohistochemical-, molecular-, and/or culture-based methods.
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Affiliation(s)
- Franklin Riet-Correa
- Instituto Nacional de Investigación Agropecuaria, Plataforma de Investigación en Salud Animal, Estación Experimental INIA La Estanzuela, Colonia, Uruguay.,Programa de Pos-graduação em Ciência Animal nos Trópicos, Escola de Medicina Veterinária e Zootecnia, Universidade Federal da Bahia, Salvador
| | - Priscila Maria Silva do Carmo
- Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande, Bairro Santa Cecília, Patos, Brazil
| | - Francisco A Uzal
- California Animal Health and Food Safety Laboratory, University of California-Davis, San Bernardino, CA
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16
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Masuda M, Jagielski T, Danesi P, Falcaro C, Bertola M, Krockenberger M, Malik R, Kano R. Protothecosis in Dogs and Cats-New Research Directions. Mycopathologia 2020; 186:143-152. [PMID: 33206310 DOI: 10.1007/s11046-020-00508-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 11/02/2020] [Indexed: 11/25/2022]
Abstract
Protothecosis refers to disease of humans and animals caused by infection with fungus-like, colourless microalgae of the genus Prototheca. Although protothecosis remains an uncommon infection, increasing numbers of human and animal cases are being diagnosed worldwide. This review summarises major new findings in basic science (sequencing analyses of sterol 14α-demethylase (CYP51/ERG11) genes and organelle genomes of Prototheca wickerhamii) to elucidate taxonomic features of this pathogen. Furthermore, this review updates and summarises the clinical features, diagnosis and treatment of protothecosis in dogs and cats. This content of this review is based on information presented at the medical phycology symposium held in the 20th Congress of the International Society for Human and Animal Mycology ( https://www.isham.org/ ).
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Affiliation(s)
- Michiaki Masuda
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Tomasz Jagielski
- Department of Medical Microbiology, Institute of Microbiology, University of Warsaw, Warsaw, Poland
| | - Patrizia Danesi
- Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, PD, Italy
| | - Christian Falcaro
- Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, PD, Italy
| | - Michela Bertola
- Istituto Zooprofilattico Sperimentale Delle Venezie, Legnaro, PD, Italy
| | - Mark Krockenberger
- Veterinary Pathology Diagnostic Services (VPDS), Sydney School of Veterinary Science, The University of Sydney, B14, Sydney, NSW, Australia
| | - Richard Malik
- Centre for Veterinary Education, The University of Sydney, B22, Sydney, NSW, 2006, Australia
| | - Rui Kano
- Department of Veterinary Dermatology, Nihon University School of Veterinary Medicine, 1866, Kameino, Fujisawa, Kanagawa, 252-0880, Japan.
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17
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Cocchetto A, Briola C, Furlanello T, Danesi P, Cirla A, Menchetti M. 3‐T MRI of protothecosis encephalic lesions in a Scottish shepherd dog. VETERINARY RECORD CASE REPORTS 2020. [DOI: 10.1136/vetreccr-2020-001145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Aurora Cocchetto
- Neurology and Neurosurgery DivisionSan Marco Veterinary ClinicVeggiano (Padova)Italy
| | - Chiara Briola
- Cambridge UniversityCambridgeUK
- Diagnostic and Interventional Radiology DivisionSan Marco Veterinary ClinicVeggiano (Padova)Italy
| | | | - Patrizia Danesi
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVE)LegnaroItaly
| | - Alessandro Cirla
- Ophtalmology DivisionSan Marco Veterinary ClinicVeggiano (Padova)Italy
| | - Marika Menchetti
- Neurology and Neurosurgery DivisionSan Marco Veterinary ClinicVeggiano (Padova)Italy
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18
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Whipple KM, Wellehan JF, Jeon AB, Sabatino BR, Frasca S, Popov VL, Ossiboff R, Leissinger MK. Cytologic, histologic, microbiologic, and electron microscopic characterization of a canine Prototheca wickerhamii infection. Vet Clin Pathol 2020; 49:326-332. [PMID: 32468599 DOI: 10.1111/vcp.12864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/16/2019] [Accepted: 10/21/2019] [Indexed: 11/30/2022]
Abstract
An adult dog was presented for chronic cough and a recent development of ulcerated, erythematous nares with nasal discharge. Cytology of enlarged peripheral lymph nodes revealed many intracellular and extracellular organisms. These round or rarely oval organisms measured approximately 5-9 µm in diameter and frequently contained several globular structures, ranging from deeply basophilic to magenta. A thin, clear halo was present. Smaller 1-2 µm, magenta forms were also observed. Fungal culture yielded small, wet, raised, irregularly shaped, white to pale tan colonies. Microbiologic staining of cultured material revealed features suggestive of algae. Histopathology of the lymph nodes revealed marked granulomatous inflammation with intralesional algal organisms suggestive of Prototheca. Electron microscopic findings were also consistent with protothecosis. Polymerase chain reaction, followed by direct DNA sequencing, identified the organism as Prototheca wickerhamii. A brief literature review discussing protothecosis in veterinary medicine is included.
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Affiliation(s)
- Kellie M Whipple
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - James F Wellehan
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Albert B Jeon
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Bethany R Sabatino
- Blue Pearl Veterinary Specialty and Emergency Gainesville, Gainesville, FL, USA
| | - Salvatore Frasca
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Vsevolod L Popov
- Department of Pathology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Robert Ossiboff
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Mary K Leissinger
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
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Preliminary Results, Perspectives, and Proposal for a Screening Method of In Vitro Susceptibility of Prototheca Species to Antimicrotubular Agents. Antimicrob Agents Chemother 2020; 64:AAC.01392-19. [PMID: 31871079 DOI: 10.1128/aac.01392-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 12/02/2019] [Indexed: 11/20/2022] Open
Abstract
Microorganisms belonging to the genus Prototheca are achlorophyllous microalgae, occasionally behaving as environmental pathogens that cause severe mastitis in milk cows, as well as localized or systemic infections in humans and animals. Among the different species belonging to the genus, Prototheca zopfii genotype 2 (recently reclassified as P. bovis) and P. blaschkeae are most commonly associated with bovine mastitis. To date, no pharmacological treatment is available to cure protothecal mastitis, and infected animals must be quarantined to avoid spreading the infection. The few antibiotic and antifungal drugs effective in vitro against Prototheca give poor results in vivo This failure is likely due to the lack of specificity of such drugs. As microalgae are more closely related to plants than to bacteria or fungi, an alternative possibility is to test molecules with herbicidal properties, in particular, antimicrotubular herbicides, for which plant rather than animal tubulin is the selective target. Once a suitable test protocol was set up, a panel of 11 antimicrotubular agents belonging to different chemical classes and selective for plant tubulin were tested for the ability to inhibit growth of Prototheca cells in vitro Two dinitroanilines, dinitramine and chloralin, showed strong inhibitory effects on P. blaschkeae at low micromolar concentrations, with half-maximal inhibitory concentrations (IC50) of 4.5 and 3 μM, respectively, while both P. zopfii genotype 1 (now reclassified as P. ciferrii) and P. bovis showed susceptibility to dinitramine only, to different degrees. Suitable screening protocols for antimitotic agents are suggested.
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20
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Jagielski T, Bakuła Z, Gawor J, Maciszewski K, Kusber WH, Dyląg M, Nowakowska J, Gromadka R, Karnkowska A. The genus Prototheca (Trebouxiophyceae, Chlorophyta) revisited: Implications from molecular taxonomic studies. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101639] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Katwilat P, Chongtrakool P, Muangsomboon S, Jitmuang A. Prototheca wickerhamii prepatellar bursitis in an immunocompetent woman: A case report. J Mycol Med 2019; 29:361-364. [PMID: 31570306 DOI: 10.1016/j.mycmed.2019.100901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/29/2019] [Accepted: 09/09/2019] [Indexed: 10/26/2022]
Abstract
Prototheca wickerhamii is a rare cause of septic prepatellar bursitis. We report a patient who had no apparent immunodeficiency developed P. wickerhamii prepatellar bursitis following intra-bursal corticosteroid injection. Clinical manifestations could not distinguish Prototheca bursitis from septic bursitis caused by other pathogens. Bursal fluid aspiration sent for direct microscopic examination and cultures could give an early diagnosis. Systemic antifungal therapy with complete surgical excision of infected bursa provided a good outcome.
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Affiliation(s)
- P Katwilat
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok 10700, Thailand
| | - P Chongtrakool
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - S Muangsomboon
- Department of Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - A Jitmuang
- Division of Infectious Diseases and Tropical Medicine, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Wanglang Road, Bangkoknoi, Bangkok 10700, Thailand.
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22
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Emergence of Fungal-Like Organisms: Prototheca. Mycopathologia 2019; 185:747-754. [PMID: 31401758 DOI: 10.1007/s11046-019-00365-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/18/2019] [Indexed: 10/26/2022]
Abstract
The genus Prototheca consists of achlorophyllic algae that are ubiquitous in the environment and animal intestines. However, this organism has forfeited its photosynthetic ability and switched to parasitism. In 1894, Krüger described two microorganisms isolated in Germany from mucous flux of Tilia and Ulmus spp., namely Prototheca moriformis and P. zopfii. Based on their yeast-like colony morphology, Krüger classified these organisms as fungi. The genus is now included within the class Trebouxiophyceae, order Chlorellales, and family Chlorellaceae. Historically, protothecosis and infections caused by green algae have been studied in the field of medical mycology. Prototheca spp. have been found to colonize human skin, fingernails, the respiratory tract, and digestive system. Although human infection by Prototheca is considered rare, an increase in infections has been noted among immunosuppressed patients, those on corticosteroid treatment, or both. Moreover, the first human outbreak of protothecal algaemia and sepsis was recently reported in a tertiary care chemotherapy oncology unit in 2018. Prototheca is also a causative pathogen of bovine disease. Prototheca zopfii and P. blaschkeae are associated with bovine mastitis, which causes a reduction in milk production and secretion of thin, watery milk containing white flakes. Economic losses are incurred either directly via reduced milk production and premature culling of affected animals or indirectly as a result of treatment and veterinary care expenses. Thus, knowledge of this fungal-like pathogen is essential in human and veterinary medicine. In this mini-review, I briefly introduce human and animal protothecoses.
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23
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Kunthiphun S, Endoh R, Takashima M, Ohkuma M, Tanasupawat S, Savarajara A. Prototheca paracutis sp. nov., a novel oleaginous achlorophyllous microalga isolated from a mangrove forest. MYCOSCIENCE 2019. [DOI: 10.1016/j.myc.2019.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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First bloodstream infection due to Prototheca zopfii var. hydrocarbonea in an immunocompromised patient. Med Mycol Case Rep 2019; 24:9-12. [PMID: 30859058 PMCID: PMC6395827 DOI: 10.1016/j.mmcr.2019.02.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 01/17/2019] [Accepted: 02/08/2019] [Indexed: 12/05/2022] Open
Abstract
Here we describe a bloodstream infection due to P. zopfii var. hydrocarbonea in a patient with acute lymphoblastic leukemia. Identification was performed by DNA sequencing of the D1/D2 domain of 26s ribosomal DNA and by MALDI-TOF MS technique. Antifungal susceptibility tests against amphotericin B, fluconazole, itraconazole, and voriconazole showed the following MIC values, respectively: 0.25 mg/L, 128 mg/L, 0.064 mg/L, and 0.125 mg/L. The patient received amphotericin B treatment with a successful outcome.
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25
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Severgnini M, Lazzari B, Capra E, Chessa S, Luini M, Bordoni R, Castiglioni B, Ricchi M, Cremonesi P. Genome sequencing of Prototheca zopfii genotypes 1 and 2 provides evidence of a severe reduction in organellar genomes. Sci Rep 2018; 8:14637. [PMID: 30279542 PMCID: PMC6168571 DOI: 10.1038/s41598-018-32992-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 09/12/2018] [Indexed: 01/07/2023] Open
Abstract
Prototheca zopfii (P. zopfii, class Trebouxiophyceae, order Chlorellales, family Chlorellaceae), a non-photosynthetic predominantly free-living unicellular alga, is one of the few pathogens belonging to the plant kingdom. This alga can affect many vertebrate hosts, sustaining systemic infections and diseases such as mastitis in cows. The aim of our work was to sequence and assemble the P. zopfii genotype 1 and genotype 2 mitochondrial and plastid genomes. Remarkably, the P. zopfii mitochondrial (38 Kb) and plastid (28 Kb) genomes are models of compaction and the smallest known in the Trebouxiophyceae. As expected, the P. zopfii genotype 1 and 2 plastid genomes lack all the genes involved in photosynthesis, but, surprisingly, they also lack those coding for RNA polymerases. Our results showed that plastid genes are actively transcribed in P. zopfii, which suggests that the missing RNA polymerases are substituted by nuclear-encoded paralogs. The simplified architecture and highly-reduced gene complement of the P. zopfii mitochondrial and plastid genomes are closer to those of P. stagnora and the achlorophyllous obligate parasite Helicosporidium than to those of P. wickerhamii or P. cutis. This similarity is also supported by maximum likelihood phylogenetic analyses inferences. Overall, the P. zopfii sequences reported here, which include nuclear genome drafts for both genotypes, will help provide both a deeper understanding of the evolution of Prototheca spp. and insights into the corresponding host/pathogen interactions.
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Affiliation(s)
- Marco Severgnini
- Institute of Biomedical Technologies, National Research Council (ITB-CNR), Segrate, Milan, Italy
| | - Barbara Lazzari
- PTP-Science Park, Lodi, Italy.,Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Lodi, Italy
| | - Emanuele Capra
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Lodi, Italy
| | - Stefania Chessa
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Lodi, Italy
| | - Mario Luini
- Lombardy and Emilia Romagna Experimental Zootechnic Institute (IZSLER), Lodi, Italy
| | - Roberta Bordoni
- Institute of Biomedical Technologies, National Research Council (ITB-CNR), Segrate, Milan, Italy
| | - Bianca Castiglioni
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Lodi, Italy
| | - Matteo Ricchi
- Lombardy and Emilia Romagna Experimental Zootechnic Institute (IZSLER), Piacenza, Italy.
| | - Paola Cremonesi
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), Lodi, Italy
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26
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Todd JR, Matsumoto T, Ueno R, Murugaiyan J, Britten A, King JW, Odaka Y, Oberle A, Weise C, Roesler U, Pore RS. Medical phycology 2017. Med Mycol 2018; 56:S188-S204. [PMID: 29767780 DOI: 10.1093/mmy/myx162] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2017] [Accepted: 03/09/2018] [Indexed: 11/13/2022] Open
Abstract
In 2014, ISHAM formed a new working group: "Medical Phycology: Protothecosis and Chlorellosis." The purpose of this working group is to help facilitate collaboration and communication among people interested in the pathogenic algae, to share ideas and work together. Here we present reports on recent work we have done in five areas. 1. The history of medical phycology as a branch of science. 2. Aspects of the genetics of Prototheca. 3. Aspects of the proteins of Prototheca. 4. Human infections caused by Prototheca. 5. Dairy cow mastitis caused by Prototheca.
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Affiliation(s)
- John R Todd
- Section of Infectious Diseases, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | | | - Ryohei Ueno
- Department of Life and Health Sciences, Teikyo University of Science, Tokyo, Japan
| | - Jayaseelan Murugaiyan
- Freie Universität Berlin, Institute of Animal Hygiene and Environmental Health, Center for Infectious Medicine, Berlin, Germany
| | | | - John W King
- Section of Infectious Diseases, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | - Yoshinobu Odaka
- Department of Pediatric Ophthalmology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Arnold Oberle
- Department of Pathology, Louisiana State University School of Medicine, Shreveport, Louisiana, USA
| | - Christoph Weise
- Freie Universität Berlin, Institute for Chemistry and Biochemistry, Berlin, Germany
| | - Uwe Roesler
- Freie Universität Berlin, Institute of Animal Hygiene and Environmental Health, Center for Infectious Medicine, Berlin, Germany
| | - R Scott Pore
- Department of Medical Microbiology, Immunology, and Cell Biology, West Virginia University School of Medicine, Morgantown, West Virginia, USA
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27
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cytb as a New Genetic Marker for Differentiation of Prototheca Species. J Clin Microbiol 2018; 56:JCM.00584-18. [PMID: 30068534 DOI: 10.1128/jcm.00584-18] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/21/2018] [Indexed: 11/20/2022] Open
Abstract
Achlorophyllous unicellular microalgae of the genus Prototheca (Trebouxiophyceae, Chlorophyta) are the only known plants that cause infections in both humans and animals, collectively referred to as protothecosis. Human protothecosis, most commonly manifested as cutaneous, articular, and disseminated disease, is primarily caused by Protothecawickerhamii, followed by Protothecazopfii and, sporadically, by Protothecacutis and Protothecamiyajii In veterinary medicine, however, P. zopfii is a major pathogen responsible for bovine mastitis, which is a predominant form of protothecal disease in animals. Historically, identification of Prototheca spp. has relied upon phenotypic criteria; these were later replaced by molecular typing schemes, including DNA sequencing. However, the molecular markers interrogated so far, mostly located in the ribosomal DNA (rDNA) cluster, do not provide sufficient discriminatory power to distinguish among all Prototheca spp. currently recognized. Our study is the first attempt to develop a fast, reliable, and specific molecular method allowing identification of all Prototheca spp. We propose the mitochondrial cytb gene as a new and robust marker for diagnostics and phylogenetic studies of the Prototheca algae. The cytb gene displayed important advantages over the rDNA markers. Not only did the cytb gene have the highest discriminatory capacity for resolving all Prototheca species, but it also performed best in terms of technical feasibility, understood as ease of amplification, sequencing, and multiple alignment analysis. Based on the species-specific polymorphisms in the partial cytb gene, we developed a fast and straightforward PCR-restriction fragment length polymorphism (RFLP) assay for identification and differentiation of all Prototheca species described so far. The newly proposed method is advocated to be a new gold standard in diagnostics of protothecal infections in human and animal populations.
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28
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Wang F, Feng P, Lin Y, Chen X, Xu D, Wang Z, Han J. Human Cutaneous Protothecosis: A Case Report and Review of Cases from Mainland China, Hong Kong, and Taiwan. Mycopathologia 2018; 183:821-828. [DOI: 10.1007/s11046-018-0292-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 08/07/2018] [Indexed: 11/24/2022]
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29
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Ramanan P, Virk A, Boland JM, Pritt B, Rizzo M, Wengenack NL. Answer to August 2018 Photo Quiz. J Clin Microbiol 2018; 56:e02418-16. [PMID: 30049808 PMCID: PMC6062793 DOI: 10.1128/jcm.02418-16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Poornima Ramanan
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Abinash Virk
- Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, USA
| | - Jennifer M Boland
- Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA
| | - Bobbi Pritt
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Marco Rizzo
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Nancy L Wengenack
- Division of Clinical Microbiology, Mayo Clinic, Rochester, Minnesota, USA
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Silveira CS, Cesar D, Keating MK, DeLeon-Carnes M, Armién AG, Luhers M, Riet-Correa F, Giannitti F. A Case of Prototheca zopfii Genotype 1 Infection in a Dog (Canis lupus familiaris). Mycopathologia 2018; 183:853-858. [PMID: 29872935 DOI: 10.1007/s11046-018-0274-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/28/2018] [Indexed: 10/14/2022]
Abstract
Protothecosis is a rare disease caused by environmental algae of the genus Prototheca. These are saprophytic, non-photosynthetic, aerobic, colorless algae that belong to the Chlorellaceae family. Seven different species have been described. Prototheca zopfii genotype 2 and P. wickerhamii are most commonly involved in pathogenic infections in humans and animals. The objective of this work is to describe, for the first time, a case of protothecosis caused by P. zopfii genotype 1 in a dog. The dog, a 4-year-old mix bred male, was presented to a veterinary clinic in Montevideo, Uruguay, with multiple skin nodules, one of which was excised by surgical biopsy. The sample was examined histologically and processed by PCR, DNA sequencing, and restriction fragments length polymorphisms for the detection and genotyping of P. zopfii. In addition, transmission electron microscopy and scanning electron microscopy were performed. Histology showed severe ulcerative granulomatous dermatitis and panniculitis with myriads of pleomorphic algae. Algal cells were 4-17 µm in size, with an amphophilic, 2-4-µm-thick wall frequently surrounded by a clear halo, contained flocculant material and a deeply basophilic nucleus, and internal septae with daughter cells (endospores) consistent with endosporulation. Ultrastructurally, algal cells/endospores at different stages of development were found within parasitophorous vacuoles in macrophages. Prototheca zopfii genotype 1 was identified by molecular testing, confirming the etiologic diagnosis of protothecosis.
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Affiliation(s)
- Caroline S Silveira
- Instituto Nacional de Investigación Agropecuaria (INIA), Ruta No. 50, km 11, La Estanzuela, Colonia, 70006, Uruguay
| | | | - M Kelly Keating
- Centers for Disease Control and Prevention, Atlanta, GA, USA
| | | | - Aníbal G Armién
- Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA
| | | | - Franklin Riet-Correa
- Instituto Nacional de Investigación Agropecuaria (INIA), Ruta No. 50, km 11, La Estanzuela, Colonia, 70006, Uruguay
| | - Federico Giannitti
- Instituto Nacional de Investigación Agropecuaria (INIA), Ruta No. 50, km 11, La Estanzuela, Colonia, 70006, Uruguay. .,Veterinary Population Medicine Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA.
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Jagielski T, Bakuła Z, Pleń M, Kamiński M, Nowakowska J, Bielecki J, Wolska KI, Grudniak AM. The activity of silver nanoparticles against microalgae of the Prototheca genus. Nanomedicine (Lond) 2018; 13:1025-1036. [PMID: 29790400 DOI: 10.2217/nnm-2017-0370] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To investigate the in vitro activity of silver NPs (AgNPs) against pathogenic microalgae of the Prototheca genus. MATERIALS & METHODS The antialgal potential of AgNPs against Prototheca species of both clinical and environmental origin was assessed from minimum inhibitory (algistatic) and algicidal concentrations. The in vitro cytotoxicity of AgNPs against bovine mammary epithelial cell line was evaluated by means of the standard MTT assay. RESULTS AgNPs showed a strong killing activity toward Prototheca algae, as the minimal algicidal concentration (MAC) values matched perfectly the corresponding minimum inhibitory concentration (MIC) values for all species (MAC = MIC, 1-4 mg/l), except P. stagnora (MIC > 8 mg/l). The concentrations inhibitory to pathogenic Prototheca spp. (MIC, 1-4 mg/l) were below the concentrations at which any toxicity in epithelial cells could be observed (CC20 > 6 mg/l). CONCLUSION The study emphasizes the potential of AgNPs as a new therapeutic tool for the management of Prototheca infections.
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Affiliation(s)
- Tomasz Jagielski
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Zofia Bakuła
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Małgorzata Pleń
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Michał Kamiński
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Julita Nowakowska
- Laboratory of Electron & Confocal Microscopy, Faculty of Biology, University of Warsaw, I. Miecznikowa 1, 02-096, Warsaw, Poland
| | - Jacek Bielecki
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Krystyna I Wolska
- Department of Bacterial Genetics, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
| | - Anna M Grudniak
- Department of Bacterial Genetics, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, I. Miecznikowa 1, 02-096, Poland
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In Vitro Activity of 30 Essential Oils against Bovine Clinical Isolates of Prototheca zopfii and Prototheca blaschkeae. Vet Sci 2018; 5:vetsci5020045. [PMID: 29695110 PMCID: PMC6024326 DOI: 10.3390/vetsci5020045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 11/17/2022] Open
Abstract
Protothecal mastitis poses an emergent animal health problem in dairy herds, with a high impact on dairy industries, causing heavy economic losses. Current methods of treating protothecal infections are ineffective, and no drug is licensed for use in cattle. The aim of the present study was to check the antialgal activity of 30 chemically defined essential oils (EOs) against Prototheca zopfii and Prototheca blaschkeae isolated from the milk of dairy cows with mastitis. A microdilution test was carried out to estimate the antialgal effectiveness of the selected chemically defined EOs. The microdilution test showed different degrees of inhibition among the examined Prototheca species. The activity of some of the examined EOs seem interesting. In particular, Citrus paradisi yielded the lowest minimal inhibitory concentration values (0.75%) for both algal species. P. zopfii appeared to be more sensitive to EOs in comparison to P. blaschkeae. The present study investigated the in vitro susceptibility of P. zopfii and P. blaschkeae to a wide range of EOs, obtained from different botanical families. Further investigations are necessary to evaluate the efficacy of EO-based formulations intended for the disinfection of both udder and milking products.
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Grzesiak B, Krukowski H, Głowacka A. The in vitro efficacy of SunSmile ® Fruit & Vegetable Rinse against pathogenic strains of Prototheca algae that cause mastitis in cows. J Mycol Med 2018; 28:300-304. [PMID: 29673770 DOI: 10.1016/j.mycmed.2018.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 03/24/2018] [Accepted: 03/24/2018] [Indexed: 10/17/2022]
Abstract
The research concerns algae of the genus Prototheca. They are found in the natural environment and they can cause a disease in animals and humans called protothecosis. The aim of the study was to evaluate the in vitro activity of the fruit and vegetable rinse agent SunSmile® Fruit & Vegetable Rinse (Sunrider International) against P. zopfii isolates. The materials consisted of ten P. zopfii strains isolated from the milk of cows with mastitis. The following antifungal chemotherapeutic agents were also used in the study for comparison: nystatin, ketoconazole, amphothericin B, miconazole, clotrimazole, econazole, fluconazole, and flucytosine. The tube dilution method were used to evaluate the effect of a fruit and vegetable rinse agent and the disc-diffusion method to evaluate the effect of antifungal chemotherapeutic agents on P. zopfii strains. All tested strains of P. zopfii were susceptible to the action of the SunSmile® agent. The MMC was in the range of 0.0024-0.0190%. The SunSmile® Fruit & Vegetable Rinse can be used in prevention of mastitis in cows and in human protothecosis due to its safe, natural composition and efficacy.
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Affiliation(s)
- B Grzesiak
- Department of environmental biology, Medical University of Lodz, Żeligowskiego 7/9, 90752 Lodz, Poland.
| | - H Krukowski
- Department of animal and environmental hygiene, University of Life Sciences, Akademicka 13, 20950 Lublin, Poland
| | - A Głowacka
- Department of environmental biology, Medical University of Lodz, Żeligowskiego 7/9, 90752 Lodz, Poland
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Morandi S, Cremonesi P, Povolo M, Capra E, Silvetti T, Castiglioni B, Ribeiro MG, Alves AC, da Costa GM, Luini M, Brasca M. Prototheca blaschkeae subsp. brasiliensis subsp. nov., isolated from cow milk. Int J Syst Evol Microbiol 2017; 67:3865-3871. [DOI: 10.1099/ijsem.0.002209] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Stefano Morandi
- Institute of Sciences of Food Production, Italian National Research Council (CNR ISPA), Via Celoria 2, 20133 Milan, Italy
| | - Paola Cremonesi
- Institute of Agricultural Biology and Biotechnology, Italian National Research Council (CNR IBBA), Via Einstein, 26900 Lodi, Italy
| | - Milena Povolo
- Council for Agricultural Research and Economics – Research Centre for Animal Production and Aquaculture (CREA-ZA), Via Lombardo 11, 26900 Lodi, Italy
| | - Emanuele Capra
- Institute of Agricultural Biology and Biotechnology, Italian National Research Council (CNR IBBA), Via Einstein, 26900 Lodi, Italy
| | - Tiziana Silvetti
- Institute of Sciences of Food Production, Italian National Research Council (CNR ISPA), Via Celoria 2, 20133 Milan, Italy
| | - Bianca Castiglioni
- Institute of Agricultural Biology and Biotechnology, Italian National Research Council (CNR IBBA), Via Einstein, 26900 Lodi, Italy
| | - Márcio Garcia Ribeiro
- Department of Veterinary Hygiene and Public Health, Universidade Estadual Paulista (UNESP), 18618-681 Botucatu, state of São Paulo, Brazil
| | - Ana Carolina Alves
- Department of Veterinary Hygiene and Public Health, Universidade Estadual Paulista (UNESP), 18618-681 Botucatu, state of São Paulo, Brazil
| | - Geraldo Márcio da Costa
- Department of Veterinary Medicine, Federal University of Lavras, Larvas, 37200000, state of Minas Gerais, Brazil
| | - Mario Luini
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via Einstein, 26900 Lodi, Italy
| | - Milena Brasca
- Institute of Sciences of Food Production, Italian National Research Council (CNR ISPA), Via Celoria 2, 20133 Milan, Italy
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Jagielski T, Dyląg M, Roesler U, Murugaiyan J. Isolation of infectious microalga Prototheca wickerhamii from a carp (Cyprinus carpio) - a first confirmed case report of protothecosis in a fish. JOURNAL OF FISH DISEASES 2017; 40:1417-1421. [PMID: 28300290 DOI: 10.1111/jfd.12614] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
Protothecosis is a rare infection caused by environmentally ubiquitous achlorophyllic microalgae of the genus Prototheca. Here, we describe a first case of protothecosis in a carp (Cyprinus carpio), which is at the same time the first case of protothecosis in a fish, confirmed by phenotype- and molecular-based methods, including PCR sequencing of the rDNA cluster and protein profiling using matrix-assisted laser desorption ionization time-of-flight mass spectrometry.
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Affiliation(s)
- T Jagielski
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - M Dyląg
- Department of Genetics, Institute of Genetics and Microbiology, University of Wrocław, Wrocław, Poland
| | - U Roesler
- Institute of Animal Hygiene and Environmental Health, Centre for Infectious Medicine, Freie Universität Berlin, Berlin, Germany
| | - J Murugaiyan
- Institute of Animal Hygiene and Environmental Health, Centre for Infectious Medicine, Freie Universität Berlin, Berlin, Germany
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36
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Jagielski T, Bakuła Z, Di Mauro S, Casciari C, Cambiotti V, Krukowski H, Turchetti B, Ricchi M, Manuali E, Buzzini P. A comparative study of the in vitro activity of iodopropynyl butylcarbamate and amphotericin B against Prototheca spp. isolates from European dairy herds. J Dairy Sci 2017; 100:7435-7445. [DOI: 10.3168/jds.2017-12597] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 05/24/2017] [Indexed: 11/19/2022]
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37
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Inoue M, Miyashita A, Noguchi H, Hirose N, Nishimura K, Masuda M, Ihn H. Case report of cutaneous protothecosis caused by Prototheca wickerhamii designated as genotype 2 and current status of human protothecosis in Japan. J Dermatol 2017; 45:67-71. [PMID: 28815731 DOI: 10.1111/1346-8138.14010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/11/2017] [Indexed: 11/26/2022]
Abstract
An 85-year-old Japanese woman presented with infiltrative erythema and ulceration on the extensor surface of her right forearm. Direct microscopic examination demonstrated spherical and morula-like sporangia, while histopathology revealed numerous microorganisms with a mulberry-like appearance in the dermis. Staining of the microorganisms also showed mulberry-like sporangia that resembled the spokes of a wheel. The isolated yeast-like microorganism had been identified as Prototheca wickerhamii genotype 2 in another independent study on the basis of its morphological, biochemical and genetic analysis. This case of protothecosis was recorded in Kyushu, Japan, and oral treatment with itraconazole 200 mg/day for 2 months was effective. Herein, we also summarize and analyze 39 cases of human protothecosis reported in Japan since the first record in 1983.
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Affiliation(s)
- Maki Inoue
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Azusa Miyashita
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiromitsu Noguchi
- Noguchi Dermatology Clinic, Kumamoto, Japan.,Ochanomizu Institute for Medical Mycology and Allergology, Tokyo, Japan
| | - Noriyuki Hirose
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi, Japan.,BD Japan, Co., Ltd, Kanagawa, Japan
| | - Kazuko Nishimura
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi, Japan.,First Laboratories, Co., Ltd, Kanagawa, Japan
| | - Michiaki Masuda
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi, Japan
| | - Hironobu Ihn
- Department of Dermatology and Plastic Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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38
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Hirose N, Hua Z, Kato Y, Zhang Q, Li R, Nishimura K, Masuda M. Molecular Characterization of Prototheca strains isolated in China revealed the first cases of protothecosis associated with Prototheca zopfii genotype 1. Med Mycol 2017; 56:279-287. [DOI: 10.1093/mmy/myx039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Noriyuki Hirose
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
- BD Japan, Co., Ltd., Tokyo 107-0052, Japan
| | - Zhensheng Hua
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Yuichi Kato
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
| | - Qiangqiang Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Ruoyu Li
- Department of Dermatology, Peking University First Hospital, Beijing, China
| | - Kazuko Nishimura
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
- First Laboratories, Co. Ltd., Kanagawa 211-0013, Japan
| | - Michiaki Masuda
- Department of Microbiology, Dokkyo Medical University School of Medicine, Tochigi 321-0293, Japan
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Alves AC, Capra E, Morandi S, Cremonesi P, Pantoja JCF, Langoni H, de Vargas APC, da Costa MM, Jagielski T, Bolaños CAD, Guerra ST, Ribeiro MG. In vitro algicidal effect of guanidine on Prototheca zopfii genotype 2 strains isolated from clinical and subclinical bovine mastitis. Lett Appl Microbiol 2017; 64:419-423. [PMID: 28349671 DOI: 10.1111/lam.12737] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/21/2017] [Accepted: 03/22/2017] [Indexed: 11/27/2022]
Abstract
Prototheca species have increasingly been reported to be opportunistic pathogens that cause mastitis in dairy herds, and it poses an emergent problem because at present, there are no effective therapies for the treatment of protothecal mastitis. This study investigated the in vitro algicidal effect of guanidine on 75 Prototheca zopfii genotype 2 strains isolated from 75 cases of clinical and subclinical bovine mastitis. All strains were susceptible to guanidine in vitro with minimal algaecide concentrations ranging from 0·001 to 0·035%. Guanidine is known to have a high microbicidal effect and is considered to be a new generation microbicidal compound. It is not toxic to human mucous membranes and conjunctivas at low concentrations and has been used as a disinfectant in swimming pools and as an antiseptic for human wounds. The algicidal action of guanidine at low concentrations indicates that it could be an alternative disinfectant or antiseptic for cleaning of the dairy environment and milking equipment, in pre- and postdipping solutions, in the chemical dry therapy of bovine teats and even in the intramammary therapy of P. zopfii infections. This is the first report of the in vitro algicidal effect of guanidine on P. zopfii strains of animal origin. SIGNIFICANCE AND IMPACT OF THE STUDY Prototheca zopfii genotype 2 is an opportunistic pathogen of bovine mastitis. To date, no effective therapies against protothecal mastitis have been developed. The in vitro algicidal effect of guanidine on 75 P. zopfii genotype 2 strains isolated from cows revealed that all of the isolates were susceptible to the compound at low concentrations, which indicates that guanidine may be used as an antiseptic/disinfectant for dairy milking equipment, in pre- and postdipping solutions, and as a chemical dry therapy or an intramammary therapy. This study describes the in vitro algicidal effect of guanidine on P. zopfii for the first time.
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Affiliation(s)
- A C Alves
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - E Capra
- Institute of Agricultural Biology and Biotechnology, National Research Council, Lodi, Italy
| | - S Morandi
- Institute of Sciences of Food Production, National Research Council, Milan, Italy
| | - P Cremonesi
- Institute of Agricultural Biology and Biotechnology, National Research Council, Lodi, Italy
| | - J C F Pantoja
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - H Langoni
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - A P C de Vargas
- Department of Preventive Veterinary Medicine, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - M M da Costa
- Federal University of São Francisco Valley, PE, Brazil
| | - T Jagielski
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - C A D Bolaños
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - S T Guerra
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
| | - M G Ribeiro
- Department of Veterinary Hygiene and Public Health, UNESP-São Paulo State University, Botucatu, SP, Brazil
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Sugiyama J, Kiyuna T, Nishijima M, An KD, Nagatsuka Y, Tazato N, Handa Y, Hata-Tomita J, Sato Y, Kigawa R, Sano C. Polyphasic insights into the microbiomes of the Takamatsuzuka Tumulus and Kitora Tumulus. J GEN APPL MICROBIOL 2017; 63:63-113. [DOI: 10.2323/jgam.2017.01.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | - Yoshinori Sato
- Tokyo National Research Institute for Cultural Properties
| | - Rika Kigawa
- Tokyo National Research Institute for Cultural Properties
| | - Chie Sano
- Tokyo National Research Institute for Cultural Properties
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Nagatsuka Y, Kiyuna T, Kigawa R, Sano C, Sugiyama J. Prototheca tumulicola sp. nov., a novel achlorophyllous, yeast-like microalga isolated from the stone chamber interior of the Takamatsuzuka Tumulus. MYCOSCIENCE 2017. [DOI: 10.1016/j.myc.2016.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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42
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Label-Free Quantitative Proteomic Analysis of Harmless and Pathogenic Strains of Infectious Microalgae, Prototheca spp. Int J Mol Sci 2016; 18:ijms18010059. [PMID: 28036087 PMCID: PMC5297694 DOI: 10.3390/ijms18010059] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/16/2016] [Accepted: 12/23/2016] [Indexed: 01/13/2023] Open
Abstract
Microalgae of the genus Prototheca (P.) spp are associated with rare algal infections of invertebrates termed protothecosis. Among the seven generally accepted species, P. zopfii genotype 2 (GT2) is associated with a severe form of bovine mastitis while P. blaschkeae causes the mild and sub-clinical form of mastitis. The reason behind the infectious nature of P. zopfii GT2, while genotype 1 (GT1) remains non-infectious, is not known. Therefore, in the present study we investigated the protein expression level difference between the genotypes of P. zopfii and P. blaschkeae. Cells were cultured to the mid-exponential phase, harvested, and processed for LC-MS analysis. Peptide data was acquired on an LTQ Orbitrap Velos, raw spectra were quantitatively analyzed with MaxQuant software and matching with the reference database of Chlorella variabilis and Auxenochlorella protothecoides resulted in the identification of 226 proteins. Comparison of an environmental strain with infectious strains resulted in the identification of 51 differentially expressed proteins related to carbohydrate metabolism, energy production and protein translation. The expression level of Hsp70 proteins and their role in the infectious process is worth further investigation. All mass spectrometry data are available via ProteomeXchange with identifier PXD005305.
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43
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Evidence of a Prototheca Zopfii Genotype 2 Disseminated Infection in a Dog with Cutaneous Lesions. Mycopathologia 2016; 182:603-608. [PMID: 28025757 DOI: 10.1007/s11046-016-0108-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 12/20/2016] [Indexed: 10/20/2022]
Abstract
Protothecosis is a disease caused by saprophyte aerobic unicellular algae belonging to the genus Prototheca. In dogs, it mainly occurs as a disseminated form, with initial clinical manifestations often referable to the gastrointestinal tract, followed by typical ocular and neurological signs. So far, Prototheca zopfii genotype 2 infection has been reported in severe forms of disseminated protothecosis, while in dogs has never been associated with cutaneous forms. In this study, we describe a case of Prototheca zopfii genotype 2 infection in a dog characterized by nodular and ulcerative dermatitis and with evidence of dissemination. In December 2015, a 5-year-old unneutered male English Setter dog was presented with a 4-month history of footpads ulcerations and multifocal nodular lesions (3-5 cm diameter) on both front limbs. Cytological examination of the aspirated fluid collected from all nodules revealed the presence of sporangic forms compatible with Prototheca spp. organisms. Suspected Prototheca spp. colonies were isolated from the aspirated fluid and identified as Prototheca zopfii genotype 2 by molecular methods. Few days after the visit, the patient developed serious neurological and ocular signs, and the owners elected humane euthanasia. To the authors' knowledge, this case could represent the first report of a disseminated Prototheca zopfii genotype 2 infection associated with cutaneous lesions in a dog. This study underlines the importance of considering Prototheca zopfii genotype 2 infection in the differential etiological diagnosis of nodular and ulcerative dermatitis in dogs.
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