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Asian Pac J Cancer Prev ; 22(1): 85-91, 2021 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-33507683

RESUMO

OBJECTIVE: Chronic Lymphocytic Leukemia (CLL) is a common leukemia among Caucasians but rare in Asians population. We postulated that aberrant methylation either hypermethylation or partial methylation might be one of the silencing mechanisms that inactivates the tumour suppressor genes in CLL. This study aimed to compare the methylation status of tumour suppressor gene, ADAM12, among CLL patients and normal individuals. We also evaluated the association between methylation of ADAM12 and clinical and demographic characteristics of the participants. METHODS: A total of 25 CLL patients and 25 normal individuals were recruited in this study. The methylation status of ADAM12 was determined using Methylation-Specific PCR (MSP); whereas, DNA sequencing method was applied for validation of the MSP results. RESULTS: Among CLL patients, 12 (48%) were partially methylated and 13 (52%) were unmethylated. Meanwhile, 5 (20%) and 20 (80.6%) of healthy individuals were partially methylated and unmethylated, respectively. There was a statistically significant association between the status of methylation at ADAM12 and the presence of CLL (p=0.037). CONCLUSION: The aberrant methylation of ADAM12 found in this study using MSP assay may provide new exposure to CLL that may improve the gaps involved in genetic epigenetic study in CLL.


Assuntos
Proteína ADAM12/genética , Biomarcadores Tumorais/genética , Metilação de DNA , Epigênese Genética , Regulação Neoplásica da Expressão Gênica , Leucemia Linfocítica Crônica de Células B/patologia , Reação em Cadeia da Polimerase/métodos , Adulto , Idoso , Estudos de Casos e Controles , Ilhas de CpG , Feminino , Seguimentos , Inativação Gênica , Humanos , Leucemia Linfocítica Crônica de Células B/genética , Masculino , Pessoa de Meia-Idade , Prognóstico , Regiões Promotoras Genéticas , Adulto Jovem
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