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자료유형
학술저널
저자정보
Jorge Antonio Zamora Dominguez (Laboratorio de Biología Molecular Servicio de Hematología Hospital General de México “Dr. Eduardo Liceaga” Ciudad de México Molecular Biology Laboratory Ciudad de México México) Irma Olarte Carrillo (Laboratorio de Biología Molecular Servicio de Hematología Hospital General de México “Dr. Eduardo Liceaga” Ciudad de México Molecular Biology Laboratory Ciudad de México México) Rubén Ruiz Ramos (Facultad de Medicina Universidad Veracruzana Veracruz México) Christian Omar Ramos-Peñafiel (Servicio de Hematología Hospital General de México “Dr. Eduardo Liceaga” Ciudad de México México) Luis Jiménez Zamudio (Laboratorio de Inmunología Clínica Departamento de Inmunología Escuela Nacional de Ciencias Biológicas Ciudad de México México) Ethel García Latorre (Laboratorio de Inmunología Clínica Departamento de Inmunología Escuela Nacional de Ciencias Biológicas Ciudad de México México) Federico Centeno Cruz (Laboratorio de Inmunología-Genómica y Enfermedades Metabólicas INMEGEN Ciudad de México México) Adolfo Martínez Tovar (Laboratorio de Biología Molecular Servicio de Hematología Hospital General de México “Dr. Eduardo Liceaga” Ciudad de México Molecular Biology Laboratory Ciudad de México México)
저널정보
대한혈액학회 Blood Research Blood Research Vol.58 No.1
발행연도
2023.3
수록면
20 - 27 (8page)
DOI
10.5045/br.2023.2022143

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Background Leukemia is a neoplasm with high incidence and mortality rates. Mitotic death has been observed in tumor cells treated with chemotherapeutic agents. Ras family proteins participate in the transduction of signals involved in different processes, such as proliferation, differentiation, survival, and paradoxically, initiation of cell death. Methods This study investigated the effect of H-Ras expression on human T-cell acute lymphoblastic leukemia MOLT-4 cells. Cells were electroporated with either wild-type (Raswt) or oncogenic mutant in codon 12 exon 1 (Rasmut) versions of H-Ras gene and stained for morphological analysis. Cell viability was assessed using trypan blue staining and cell cycle analysis using flow cytometry. H-Ras gene expression was determined using quantitative real-time reverse transcription polymerase chain reaction. The t, ANOVA, and Scheffe tests were used for statistical analysis. Results Human T-cell acute lymphoblastic leukemia MOLT-4 cells showed nuclear fragmentation and presence of multiple nuclei and micronuclei after transfection with either wt or mutant H-Ras genes. Cell cycle analysis revealed a statistically significant increase in cells in the S phase when transfected with either wt (83.67%, P <0.0005) or mutated (81.79%, P <0.0001) H-Ras genes. Although similar effects for both versions of H-Ras were found, cells transfected with the mutated version died at 120 h of mitotic catastrophe. Conclusion Transfection of human T-cell acute lymphoblastic leukemia MOLT-4 cells with either normal or mutated H-Ras genes induced alterations in morphology, arrest in the S phase, and death by mitotic catastrophe.

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