Candida species are the most common cause of opportunistic fungal infection worldwide. Here we report the genome sequences of six Candida species and compare these and related pathogens and non-pathogens. There are significant expansions of cell wall, secreted and transporter gene families in pathogenic species, suggesting adaptations associated with virulence. Large genomic tracts are homozygous in three diploid species, possibly resulting from recent recombination events. Surprisingly, key components of the mating and meiosis pathways are missing from several species. These include major differences at the mating-type loci (MTL); Lodderomyces elongisporus lacks MTL, and components of the a1/2 cell identity determinant were lost in other species, raising questions about how mating and cell types are controlled. Analysis of the CUG leucine-to-serine genetic-code change reveals that 99% of ancestral CUG codons were erased and new ones arose elsewhere. Lastly, we revise the Candida albicans gene catalogue, identifying many new genes.
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http://dx.doi.org/10.1038/nature08064 | DOI Listing |
Oral Dis
December 2024
Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland.
Objective: Oral tongue squamous cell carcinoma is an aggressive life-threatening disease, the prognosis of which is affected by tumor stage and size. We retrospectively studied whether oral inflammatory burden and established tongue carcinoma etiological factors exert an impact on tumor size and stage.
Materials And Methods: Medical records of 183 subjects diagnosed with tongue carcinoma at Helsinki University Hospital were investigated.
Sci Rep
December 2024
Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.
This study explores the design, synthesis, and evaluation of a novel series of isobenzofuran-based imidazo[2,1-b][1,3,4]thiadiazole derivatives, targeting their antimicrobial and anticancer properties. These compounds integrate the pharmacologically significant 1,3,4-thiadiazole and imidazole moieties, which are known for their potential in drug development, although imidazo[2,1-b][1,3,4]thiadiazole-based drugs are not yet available on the market. Therefore, the aim of this study is to develop novel derivatives that could serve as promising candidates for future therapeutic applications.
View Article and Find Full Text PDFSci Rep
December 2024
Bioresource and Environmental Security, Sandia National Laboratories, P. O. Box 969, Livermore, CA, 94551-0969, USA.
Global health is affected by viral, bacterial, and fungal infections that cause chronic and often fatal diseases. Identifying novel antimicrobials through innovative methods that are active against human pathogens will create a new, necessary pipeline for chemical discovery and therapeutic development. Our goal was to determine whether algal production systems represent fertile ground for discovery of antibiotics and antifungals.
View Article and Find Full Text PDFIran J Microbiol
December 2024
Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran.
Background And Objectives: Understanding the epidemiology of species among cancer patients is crucial for preventing invasive infections. This study aimed to identify species and assess risk factors among cancer patients receiving chemotherapy in Birjand, eastern Iran.
Materials And Methods: The samples were obtained from the oral cavity of 140 patients and the initial identification of species was carried out through fungal cultures.
Iran J Microbiol
December 2024
Department of Parasitology and Mycology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Background And Objectives: Airway fungal infection is a severe clinical problem, especially in patients with compromised immune functions. Here, we examined the distribution and antifungal susceptibility profiles of fungal agents isolated from respiratory tract of symptomatic patients hospitalized in pulmonary units.
Materials And Methods: This descriptive cross-sectional study took place from 2023 to 2024, involving 360 patients.
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