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Brachiola algerae has a broad host spectrum from human to mosquitoes. The successful infection of two mosquito cell lines (Mos55: embryonic cells and Sua 4.0: hemocyte-like cells) and a human cell line (HFF) highlights the efficient adaptive capacity of this microsporidian pathogen. The molecular karyotype of this microsporidian species was determined in the context of the B. algerae genome sequencing project, showing that its haploid genome consists of 30 chromosomal-sized DNAs ranging from 160 to 2240 kbp giving an estimated genome size of 23 Mbp. A contig of 12,269 bp including the DNA sequence of the B. algerae ribosomal transcription unit has been built from initial genomic sequences and the secondary structure of the large subunit rRNA constructed. The data obtained indicate that B. algerae should be an excellent parasitic model to understand genome evolution in relation to infectious capacity.
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http://dx.doi.org/10.1016/j.parint.2007.09.002 | DOI Listing |
Ecology
September 2025
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, USA.
Pathogens can alter the phenotype not only of exposed hosts, but also of future generations. Transgenerational immune priming, where parental infection drives reduced susceptibility of offspring, has been particularly well explored, but pathogens can also alter life history traits of offspring. Here, we examined the potential for transgenerational impacts of a microsporidian pathogen, Ordospora pajunii, by experimentally measuring the impact of maternal exposure on offspring fitness in the presence and absence of parasites, and then developing mathematical models that explored the population-level impacts of these transgenerational effects.
View Article and Find Full Text PDFNephrology (Carlton)
September 2025
Department of Medical Microbiology & Immunology, University of Alberta, Edmonton, Alberta, Canada.
Microsporidia are emerging opportunistic pathogens in immunosuppressed individuals, including solid organ transplant recipients. We present a case of tubulointerstitial nephritis (TIN) caused by Microsporidia infection in a 55-year-old male who underwent combined liver-kidney transplantation (CLKT) for metabolic-associated fatty liver disease and end-stage kidney disease. The patient developed diarrhoea, abdominal bloating and acute kidney injury (AKI) 1 month post-transplant.
View Article and Find Full Text PDFJ Invertebr Pathol
August 2025
State Key Laboratory of Resource Insects, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Microsporidia Infection and Control, Southwest University, Chongqing 400715, China. Electronic address:
Pébrine disease, caused by the microsporidium Nosema bombycis, represents a significant challenge to the sericulture industry. To enhance the resistance of silkworm, we developed a transgenic strain (designated N-F12) expressing a single-chain fragment variable antibody F12 (scFvF12), targeting the critical transmembrane protein NbTMP1 of N. bombycis.
View Article and Find Full Text PDFThe main theory of the evolution of virulence relies on a trade-off between virulence and transmission rate. However, it has been difficult to measure the required trade-off. A recent transmission decomposition framework explains that this might be partly due to a lack of information about the parasite's survival in the environment outside its hosts, where the parasite finds itself during transmission to its next host.
View Article and Find Full Text PDFPathogens
August 2025
Department of Biology, Parasitology and Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powstanców Wielkopolskich 72, 70-111 Szczecin, Poland.
The shortage of organs for use in transplantation has contributed to the development of an international commercial market for organ transplantation. Unfortunately, transplant tourism (TT) is associated with risks for surgical complications, poor graft outcome, increased mortality, and infectious complications. TT increases the risk of several viral (HIV and hepatitis B and C viruses), bacterial ( sp.
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