Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells
Нема приказа
Аутори
Kurtovic, Nada KraguljacKrajnović, Milena M.
Bogdanović, Andrija
Suvajdzic, Nada
Jovanović, Jelica
Dimitrijević, Bogomir B.
Čolović, Milica
Krtolica-Žikić, Koviljka
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
In this study, methylation-specific polymerase chain reaction (MS-PCR) was used to define the methylation status of the target promoter sequences of p15 and MGMT genes in the group of 21 adult patients with acute myeloid leukemia (AML). The incidence of aberrant hypermethylation of p15 gene (71 %) was higher comparing to MGMT gene (33 %), whereas concomitant methylation of both genes had 24 % of the patients. Although the incidence of cytogenetic abnormalities between the groups with a different methylation status of p15 and/or MGMT genes was not significantly different, we observed general trend of clustering of abnormalities with adverse prognosis into groups with concomitant hypermethylation of both genes and only p15 gene. Also, we showed that AML patients with concomitant methylation of p15/MGMT genes had a higher proportion of leukemic blast cells characterized with specific expression of individual leukocyte surface antigens (CD117(+)/CD7(+)/CD34(+)/CD15(-)), indicating leukemic... cells as early myeloid progenitors. Although we could not prove that hypermethylation of p15 and/or MGMT genes is predictive parameter for response to therapy and overall survival, we noticed that AML patients with comethylated p15/MGMT genes or methylated p15 gene exhibited a higher frequency of early death, lower frequency of complete remissions as well as a trend for shorter overall survival. Assessing of the methylation status of p15 and MGMT genes may allow stratification of patients with AML into distinct groups with potentially different prognosis.
Кључне речи:
Acute myeloid leukemia / Methylation profile / p15(INK4B) / MGMT / ImmunophenotypeИзвор:
Medical Oncology, 2012, 29, 5, 3547-3556Финансирање / пројекти:
- Молекуларне детерминанте за дизајн тумор маркера (RS-MESTD-Basic Research (BR or ON)-173049)
DOI: 10.1007/s12032-012-0289-6
ISSN: 1357-0560
PubMed: 22772967
WoS: 000311513800079
Scopus: 2-s2.0-84880318466
Колекције
Институција/група
VinčaTY - JOUR AU - Kurtovic, Nada Kraguljac AU - Krajnović, Milena M. AU - Bogdanović, Andrija AU - Suvajdzic, Nada AU - Jovanović, Jelica AU - Dimitrijević, Bogomir B. AU - Čolović, Milica AU - Krtolica-Žikić, Koviljka PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5173 AB - In this study, methylation-specific polymerase chain reaction (MS-PCR) was used to define the methylation status of the target promoter sequences of p15 and MGMT genes in the group of 21 adult patients with acute myeloid leukemia (AML). The incidence of aberrant hypermethylation of p15 gene (71 %) was higher comparing to MGMT gene (33 %), whereas concomitant methylation of both genes had 24 % of the patients. Although the incidence of cytogenetic abnormalities between the groups with a different methylation status of p15 and/or MGMT genes was not significantly different, we observed general trend of clustering of abnormalities with adverse prognosis into groups with concomitant hypermethylation of both genes and only p15 gene. Also, we showed that AML patients with concomitant methylation of p15/MGMT genes had a higher proportion of leukemic blast cells characterized with specific expression of individual leukocyte surface antigens (CD117(+)/CD7(+)/CD34(+)/CD15(-)), indicating leukemic cells as early myeloid progenitors. Although we could not prove that hypermethylation of p15 and/or MGMT genes is predictive parameter for response to therapy and overall survival, we noticed that AML patients with comethylated p15/MGMT genes or methylated p15 gene exhibited a higher frequency of early death, lower frequency of complete remissions as well as a trend for shorter overall survival. Assessing of the methylation status of p15 and MGMT genes may allow stratification of patients with AML into distinct groups with potentially different prognosis. T2 - Medical Oncology T1 - Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells VL - 29 IS - 5 SP - 3547 EP - 3556 DO - 10.1007/s12032-012-0289-6 ER -
@article{ author = "Kurtovic, Nada Kraguljac and Krajnović, Milena M. and Bogdanović, Andrija and Suvajdzic, Nada and Jovanović, Jelica and Dimitrijević, Bogomir B. and Čolović, Milica and Krtolica-Žikić, Koviljka", year = "2012", abstract = "In this study, methylation-specific polymerase chain reaction (MS-PCR) was used to define the methylation status of the target promoter sequences of p15 and MGMT genes in the group of 21 adult patients with acute myeloid leukemia (AML). The incidence of aberrant hypermethylation of p15 gene (71 %) was higher comparing to MGMT gene (33 %), whereas concomitant methylation of both genes had 24 % of the patients. Although the incidence of cytogenetic abnormalities between the groups with a different methylation status of p15 and/or MGMT genes was not significantly different, we observed general trend of clustering of abnormalities with adverse prognosis into groups with concomitant hypermethylation of both genes and only p15 gene. Also, we showed that AML patients with concomitant methylation of p15/MGMT genes had a higher proportion of leukemic blast cells characterized with specific expression of individual leukocyte surface antigens (CD117(+)/CD7(+)/CD34(+)/CD15(-)), indicating leukemic cells as early myeloid progenitors. Although we could not prove that hypermethylation of p15 and/or MGMT genes is predictive parameter for response to therapy and overall survival, we noticed that AML patients with comethylated p15/MGMT genes or methylated p15 gene exhibited a higher frequency of early death, lower frequency of complete remissions as well as a trend for shorter overall survival. Assessing of the methylation status of p15 and MGMT genes may allow stratification of patients with AML into distinct groups with potentially different prognosis.", journal = "Medical Oncology", title = "Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells", volume = "29", number = "5", pages = "3547-3556", doi = "10.1007/s12032-012-0289-6" }
Kurtovic, N. K., Krajnović, M. M., Bogdanović, A., Suvajdzic, N., Jovanović, J., Dimitrijević, B. B., Čolović, M.,& Krtolica-Žikić, K.. (2012). Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells. in Medical Oncology, 29(5), 3547-3556. https://doi.org/10.1007/s12032-012-0289-6
Kurtovic NK, Krajnović MM, Bogdanović A, Suvajdzic N, Jovanović J, Dimitrijević BB, Čolović M, Krtolica-Žikić K. Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells. in Medical Oncology. 2012;29(5):3547-3556. doi:10.1007/s12032-012-0289-6 .
Kurtovic, Nada Kraguljac, Krajnović, Milena M., Bogdanović, Andrija, Suvajdzic, Nada, Jovanović, Jelica, Dimitrijević, Bogomir B., Čolović, Milica, Krtolica-Žikić, Koviljka, "Concomitant aberrant methylation of p15 and MGMT genes in acute myeloid leukemia: association with a particular immunophenotype of blast cells" in Medical Oncology, 29, no. 5 (2012):3547-3556, https://doi.org/10.1007/s12032-012-0289-6 . .