Expression profile of the ABCB-1 gene (MDR-1) in breeds of dogs susceptible to mutation in Brazil

Autores

  • Vitor Chambrone Munhoz Perez
  • Felipe Augusto Ruiz Sueiro
  • Joice Lara Maia Faria
  • Paulo César Jark
  • Luciana Pereira Machado

DOI:

https://doi.org/10.34188/bjaerv8n2-030

Palavras-chave:

toxicity, P glycoprotein, chemotherapy, adverse effect

Resumo

The mutation pattern of the MDR-1 gene in dogs has a strong breed-specific character, especially in Collies, Australian Shepherds, and Shetland Sheepdogs, and less commonly in Border Collies, German Shepherds, and Old English Sheepdogs. In Brazil, there is still limited data regarding this mutation. This study assessed the incidence of the MDR-1 (ABCB-1) gene mutation using PCR in 236 dogs from nine different breeds. Most animals had normal results (87.1%), while 13.5% were heterozygous and 0.9% were homozygous for the mutation. According to breed, heterozygosity for the mutation was identified in 54.5% of Collies, 35.3% of Australian Shepherds, 40% of Ovelheiro Gaúcho, 25% of Swiss Shepherds, 13.9% of Shetland Sheepdogs, and 5.4% of Border Collies. One Collie and one Australian Shepherd were homozygous. This study concludes that the MDR-1 gene mutation is present in Brazilian dogs, highlighting the importance of PCR screening in predisposed breeds, particularly before the administration of chemotherapeutic agents and drugs that act on P-glycoprotein, in order to prevent severe pharmacological toxicities.

Biografia do Autor

Felipe Augusto Ruiz Sueiro

Joice Lara Maia Faria

Luciana Pereira Machado

Referências

DOWLING, P. Pharmacogenetics: it’s not just about ivermectin in collies. Can Vet J., v. 47, p. 1165–1168, 2006.

GEYER, J.; DORING, B.; GODOY, J. R. E. Frequency of the nt230 (del4) MDR1 mutation in Collies and related dog breeds in Germany. J. Vet. Pharmacol. Therap., v. 28, p. 545-551, 2005.

GEYER, J.; KLINTZSCH, S.; MEERKAMP, K. et al. Detection of the nt230(del4) MDR1 mutation in White Swiss Shepherd dogs: case reports of doramectin toxicosis, breed predisposition, and microsatellite analysis. J. Vet. Pharmacol. Therap., v. 30, p. 482–485, 2007.

GRAMER, I.; LEIDOLF, R.; DORING, B. et al. Breed distribution of the nt230(del4) MDR1 mutation in dogs. Vet J., v. 189, p. 67–71, 2011.

KAWABATA, A.; MOMO, Y.; INOUE-MURAYAMA, M.; IWASAKI, T. Canine MDR1 Gene Mutation in Japan. J. Vet. Med. Sci., v. 67, p. 1103-1107, 2005.

KLOPFLEISH, R.; KOHN, B.; GRUBER, A. D. Mechanisms of tumor resistance against chemotherapeutic agents in veterinary oncology. Vet. J., v. 207, p. 63-72, 2016.

MARELLI, S. P.; POLLI, M.; FRATTINI, S. et al. Genotypic and allelic frequencies of MDR1 gene in dogs in Italy. Veterinary Record Open, v. 7, e000375, 2020. doi:10.1136/vetreco-2019-000375.

MEALEY, K. L.; MUNYARD, K. A.; BENTJEN, S. A. Frequency of the mutant MDR1 allele associated with multidrug sensitivity in a sample of herding breed dogs living in Australia. Vet Parasitol, v. 131, p. 193–196, 2005.

MEALEY, K. L.; MEURS, K. M. Breed distribution of the ABCB1-1Delta (multidrug sensitivity) polymorphism among dogs undergoing ABCB1 genotyping. J. Am. Vet. Med. Assoc., v. 233, p. 921–924, 2008.

SILVA, R. E.; COSTA, J. O. J.; AZEVEDO, R. C. F.; MIGUEL, D. C.; MARCILI, A. Qual o valor do índice preditor de resposta terapêutica na quimioterapia neoadjuvante em portadores de carcinoma mamário localmente avançado por meio da expressão da glicoproteína P? Braz. J. Health Rev., v. 3, n. 8, p. 30332, 2019.

SOUSSA, R. W.; WOODWARD, A.; MARTY, M.; CANNON, C. M. Breed is associated with the ABCB1-1Δ mutation in Australian dogs. Australian Veterinary Journal, v. 98, n. 3, p. 79-83, 2020. DOI: 10.1111/avj.12896. PMID: 31743433.

Downloads

Publicado

2025-04-30

Como Citar

Perez, V. C. M., Sueiro, F. A. R., Faria, J. L. M., Jark, P. C., & Machado, L. P. (2025). Expression profile of the ABCB-1 gene (MDR-1) in breeds of dogs susceptible to mutation in Brazil. Brazilian Journal of Animal and Environmental Research, 8(2), e79385. https://doi.org/10.34188/bjaerv8n2-030

Edição

Seção

Artigos originais