Development of canine X-chromosome inactivation pattern analysis for the detection of cell clonality by incorporating the examination of the SLIT and NTRK-like family member 4 (SLITRK4) gene.
Res Vet Sci
; 125: 170-175, 2019 Aug.
Article
em En
| MEDLINE
| ID: mdl-31247472
ABSTRACT
X-chromosome inactivation pattern (XCIP) analysis can be used to assess the clonality of cell populations of various origin by distinguishing the methylated X chromosome from the unmethylated X chromosome. In this study, the utility of XCIP analysis was improved by incorporating the examination of AC dinucleotide repeats in SLIT and NTRK-like family member 4 (SLITRK4) gene into the previously reported CAG repeat examination of androgen receptor (AR) gene in dogs. The rate of heterozygosity when both genes were analysed (125/150, 83.3%) was higher than AR gene examination alone (86/150, 57.3%). Blood samples from heterozygous dogs in either AC-1 or AC-2 of SLITRK4 gene were examined for the corrected inactivation allele ratio (CIAR), resulting in the determination of a reference range of CIAR <3.8 in non-neoplastic cell/tissue samples. Using this analytical method, 49% (21/43) of neoplastic tissue samples from dogs showed a CIAR >3.8, indicating the presence of a clonal population. Through the present study, the availability of canine XCIP analysis was improved by incorporating the examination of the SLITRK4 gene, providing a highly useful laboratory examination system for the detection of the clonality of various cell/tissue samples in dogs.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Temas:
Cuidados_paliativos
/
Geral
Base de dados:
MEDLINE
Assunto principal:
Cromossomo X
/
Receptores Androgênicos
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Inativação do Cromossomo X
/
Proteínas de Membrana
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Res Vet Sci
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Japão