"Exposure to the insecticides permethrin and malathion induces leukemia and lymphoma-associated gene aberrations in vitro".
Toxicol In Vitro
; 44: 17-26, 2017 Oct.
Article
en En
| MEDLINE
| ID: mdl-28624474
Epidemiological studies have associated the exposure to permethrin and malathion with increased risk of leukemia and lymphoma. The aim of this study was to evaluate whether in vitro exposure to permethrin and malathion induces aberrations in genes involved in the etiology of these hematological malignancies. Genetic abnormalities in the IGH, KMT2A (MLL), ETV6 and RUNX1 genes, and aneuploidy induced by the in vitro exposure to permethrin and malathion (200µM, 24h), were analyzed by FISH in peripheral blood mononuclear cells (PBMCs). The gene fusions IGH-BCL2, KMT2A-AFF1 and ETV6-RUNX1 were further analyzed with nested RT-PCR in PBMCs, and in K562 cells exposed to acute and chronic treatments (0.1µM, 24h or every third day for two weeks) of insecticides. FISH analysis revealed that permethrin induces aneuploidy and structural alterations in IGH and KMT2A genes, and malathion induces breaks in KMT2A. RT-PCR detected ETV6-RUNX1 fusion in PBMCs acutely exposed to permethrin. Permethrin also induced ETV6-RUNX1 and IGH-BCL2 fusions in K562 cells, and malathion induced KMT2A-AFF1 and ETV6-RUNX1 fusions. Overall, we identified that both insecticides induce breaks and fusions in the studied genes, and permethrin induces aneuploidy. This study presents evidence of damage in cancer genes caused by these insecticides.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Leucocitos Mononucleares
/
Proteínas de Fusión Oncogénica
/
Permetrina
/
Insecticidas
/
Malatión
Tipo de estudio:
Risk_factors_studies
Límite:
Humans
/
Male
Idioma:
En
Revista:
Toxicol In Vitro
Asunto de la revista:
TOXICOLOGIA
Año:
2017
Tipo del documento:
Article
Pais de publicación:
Reino Unido