Unusual sex chromosomal DSD in a domestic Shorthair cat with a 37,X/38,XY mosaic karyotype.

Autor: Montenegro L; Veterinary Hospital Referência Veterinária Montenegro, Porto, 4000-395, Portugal.; Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, 5000-801, Portugal.; AL4AnimalS-Associate Laboratory for Animal and Veterinary Sciences, UTAD, Vila Real, 5000-801, Portugal., Costa I; Veterinary Hospital Referência Veterinária Montenegro, Porto, 4000-395, Portugal., Maltez L; Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, 5000-801, Portugal.; AL4AnimalS-Associate Laboratory for Animal and Veterinary Sciences, UTAD, Vila Real, 5000-801, Portugal., Evaristo V; Veterinary Hospital Referência Veterinária Montenegro, Porto, 4000-395, Portugal., Dias IR; Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, 5000-801, Portugal.; AL4AnimalS-Associate Laboratory for Animal and Veterinary Sciences, UTAD, Vila Real, 5000-801, Portugal., Martins C; Canidelo Veterinary Clinic - OneVet Group, Vila Nova de Gaia, 4400-710, Portugal., Borges I; Cedivet, Lionessa Business Hub, Leça do Balio, 4465-671, Portugal., Morinha F; Morinha Lab- Laboratory of Biodiversity and Molecular Genetics, Vila Real, 5000-562, Portugal., Pereira R; Laboratory of Cell Biology, Department of Microscopy, ICBAS‑School of Medicine and Biomedical Sciences, University of Porto, Porto, 4050‑313, Portugal.; UMIB‑Unit for Multidisciplinary Research in Biomedicine, ICBAS‑UP/ ITR‑Laboratory for Integrative and Translational Research in Population Health, University of Porto, Porto, 4050‑313, Portugal., Neto N; UMIB‑Unit for Multidisciplinary Research in Biomedicine, ICBAS‑UP/ ITR‑Laboratory for Integrative and Translational Research in Population Health, University of Porto, Porto, 4050‑313, Portugal.; Laboratory of Cytogenetics, Department of Microscopy, ICBAS‑School of Medicine and Biomedical Sciences, University of Porto, Porto, 4050‑313, Portugal., Oliveira C; UMIB‑Unit for Multidisciplinary Research in Biomedicine, ICBAS‑UP/ ITR‑Laboratory for Integrative and Translational Research in Population Health, University of Porto, Porto, 4050‑313, Portugal.; Laboratory of Cytogenetics, Department of Microscopy, ICBAS‑School of Medicine and Biomedical Sciences, University of Porto, Porto, 4050‑313, Portugal., Martins-Bessa A; Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, 5000-801, Portugal. abessa@utad.pt.; AL4AnimalS-Associate Laboratory for Animal and Veterinary Sciences, UTAD, Vila Real, 5000-801, Portugal. abessa@utad.pt.
Jazyk: angličtina
Zdroj: BMC veterinary research [BMC Vet Res] 2024 Jul 06; Vol. 20 (1), pp. 298. Date of Electronic Publication: 2024 Jul 06.
DOI: 10.1186/s12917-024-04164-y
Abstrakt: Background: Sex chromosome abnormalities associated with disorders of sexual development (DSD) are rarely described in cats, mainly due to the lack of chromossome studies that precisely reveal the condition. Genetic approaches are therefore required in order to detect sex chromossomes abnormalities as variations in the number and structure of chromosomes, or the presence of a second cell line as mosaicim or chimerism.
Case Presentation: A male Shorthair cryptorchid cat was presented with clinical signs of anorexia, tenesmus and hyperthermia. Ultrasonography revealed a fluid-filled structure, with approximately 1 cm in diameter, adjacent to the descending colon. Computed tomography evidenced a tubular structure, ventral to the descending colon and caudal to the bladder, which extended cranially, through two branches. Histopathological evaluation confirmed the presence of two atrophic uterine horns and one hypoplastic testicle with epididymis at the end of one of the uterine horns. The end of the other uterine horn was attached to a structure composed by a mass of adipocytes. Cytogenetic analysis revealed a mosaic 37,X/38,XY karyotype. The two cell lines were found in 15% and 85% of the lymphocytes, respectively. Genetic analysis confirmed the presence of SRY and ZFY genes in blood and hair bulbs, and revealed a marked reduction in SRY expression in the testicle. Additionally, this case presented exceptionally rare features, such as a Leydig' cell tumour and a chronic endometritis in both uterine horns.
Conclusions: Complete imaging workup, cytogenetic analysis and SRY gene expression should be systematically realized, in order to properly classify disorders of sexual development (DSD) in cats.
(© 2024. The Author(s).)
Databáze: MEDLINE
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