Publication details

Spontaneous exophytic tumour in Nothobranchius furzeri an aging research model

Title in English Spontaneous exophytic tumour in Nothobranchius furzeri, an aging research model
Authors

ŽÁK Jakub POJEZDAL Lubomir DYKOVÁ Iva

Year of publication 2024
Type Article in Periodical
Magazine / Source Journal of Fish Diseases
MU Faculty or unit

Faculty of Science

Citation
web https://doi.org/10.1111/jfd.14021
Doi http://dx.doi.org/10.1111/jfd.14021
Keywords annual killifish; benign tumour; senescence; tumour growth
Attached files
Description This report describes the case of a solitary tumor protruding dorsolaterally behind the head of a senescent (12.5 mo), seasonal killifish Nothobranchius furzeri Jubb, 1971 (Cyprinodontiformes: Nothobranchiidae). The tumor was diagnosed as a fibromyxoma, a benign mesenchymal tumor. The tumor reached a size of 12 mm within three months. Unlike previously described fibromyxomas, this contained scattered islets of epidermal proliferation, likely overgrown by proliferating connective tissue. Senescence is considered responsible for tumorigenesis, as pathogen-induced etiology was excluded. This is new evidence of a spontaneous neoplasia in Nothobranchius furzeri, a model species in biogerontology previously suspected to be tumor-prone.

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