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Pape, K.

Publications and source records attributed to Pape, K..

4 recordsLinked to original sources

Outbreak of Dermatophilus congolensis skin infection among contact sport practitioners, Norway, summer 2025

Dermatophilus congolensis is a zoonotic gram-positive bacterium causing dermatophilosis, a skin infection primarily affecting animals and uncommonly reported in humans. Although human infections have traditionally been associated with animal contact, recent reports suggest alternative transmission pathways. We investigated an outbreak among contact sport athletes in Trondheim, Norway, during July to September 2025, using structured interviews and whole-genome sequencing. Nine confirmed cases were identified. Symptoms were mild and consisted mainly of pustular lesions affecting the face, arms, back, and chest. None of the cases reported animal contact. Genomic analysis confirmed species identity and showed that outbreak isolates were highly related, differing by only 0-7 core-genome single nucleotide polymorphisms. The Trondheim isolates clustered with strains from recent outbreaks in Spain and France, suggesting international dissemination of a shared clone. These findings identify contact sports as a potential setting for transmission of human dermatophilosis and highlight the value of genomic surveillance for outbreak investigation.

microbiology↗

Unveiling IRF4-steered regulation of context-dependent effector programs in Th17 and Treg cells

The transcription factor interferon regulatory factor 4 (IRF4) is crucial for the differentiation and fate determination of pro-inflammatory T helper (Th)17 and the functionally opposing group of immunomodulatory regulatory T (Treg) cells. However, molecular mechanisms of how IRF4 steers diverse transcriptional programs in Th17 and Treg cells are far from being definitive. To unveil IRF4-driven lineage determination in Th17 and Treg cells, we integrated data derived from affinity-purification and full mass spectrometry-based proteome analysis with chromatin immune precipitation sequencing (ChIP-Seq). This allowed the characterization of subtype-specific molecular programs and the identification of novel, previously unknown IRF4 interactors in the Th17/Treg context, such as ROR{gamma}t, AHR, IRF8, BACH2, SATB1, and FLI1. Moreover, our data reveal that most of these transcription factors are recruited to IRF composite elements for the regulation of cell type-specific transcriptional programs providing a valuable resource for studying IRF4-mediated gene regulatory programs in pro- and anti-inflammatory immune responses.

immunology↗

Possible adaption of the 2022 Monkeypox virus to the human host through gene duplication and loss

Poxviruses are known to evolve slower than RNA viruses, with rearrangements such as gene gain and loss as the main driver for host adaption. In 2022 the world is being challenged by the largest global outbreak so far of Monkeypox virus, and the virus seems to have established itself in the human community. Here we report five MPXV genomes with extensive gene duplication and loss, including duplications of up to 18,000 bp to the opposed genome end, and deletions at the site of insertion of up to 16,000 bp, as a possible adaption to the human host.

molecular biology↗