scholarly journals Battling Acute Myeloid Leukemia (AML) as both a Clinician and Scientist

2020 ◽  
pp. 29-30
Author(s):  
Reza Khorvash ◽  
Ram Upadhyaya
Keyword(s):  
Gene Expression ◽  
Dna Methylation ◽  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Healthy Donor ◽  
High Dose Chemotherapy ◽  
High Dose ◽  
Epigenetic Mechanisms ◽  
Blood Formation ◽  
Acute Myeloid

Acute myeloid leukemia (AML) is characterized by the accumulation of immature hematopoietic cells in the bone marrow that impair normal blood formation. Chemotherapy is always the first treatment option for AML. Patients can also be cured by allogeneic stem cell transplantation, which consists of transferring stem cells from a healthy donor to the patient after high-intensity (high-dose) chemotherapy. Many mutations found in AML affect the cells on an epigenetic level, influencing the gene expression of the cells such as influencing DNA-methylation genes and chromatin-modifying genes. Affecting these epigenetic mechanisms is therefore of great interest in the area of AML.

scholarly journals High-dose chemotherapy and autologous bone marrow transplantation in acute myeloid leukemia

Blood ◽  
1990 ◽  
Vol 76 (3) ◽  
pp. 480-488 ◽  
Author(s):  
AK McMillan ◽  
AH Goldstone ◽  
DC Linch ◽  
JG Gribben ◽  
KG Patterson ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Autologous Bone Marrow Transplantation ◽  
Autologous Bone Marrow ◽  
High Dose Chemotherapy ◽  
High Dose ◽  
Matched Sibling ◽  
Autologous Bone ◽  
Acute Myeloid

Abstract For younger patients with acute myeloid leukemia (AML), an allogeneic transplant from a matched sibling may afford the best chance of cure. In patients who are older or without a matched sibling donor, dose intensification can be achieved with an autologous bone marrow transplant (ABMT). We report here the results of a high-dose chemotherapy regime with nonpurged ABMT in 82 adult patients in first remission of AML with a median follow-up of 31 months. The median age was 40 years (range 16 to 57 years). The median interval between remission and ABMT was 5 months (range 1 to 12 months). Twenty-eight of these patients received a second course of the same high-dose chemotherapy and ABMT. The procedure related mortality rate was 6%. The projected leukemia-free survival (LFS) at 5 years is 48% for all 82 patients and 50% for the 76 patients with no known preceding myelodysplastic syndrome. For those patients with primary AML who received a double ABMT the projected LFS is 67%. The interval between remission and ABMT did not predict for either relapse or LFS. ABMT using a multidrug chemotherapy protocol is less toxic than allogeneic BMT yet results in a similar LFS.

scholarly journals High-dose chemotherapy and autologous bone marrow transplantation in acute myeloid leukemia

Blood ◽  
1990 ◽  
Vol 76 (3) ◽  
pp. 480-488 ◽  
Author(s):  
AK McMillan ◽  
AH Goldstone ◽  
DC Linch ◽  
JG Gribben ◽  
KG Patterson ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Autologous Bone Marrow Transplantation ◽  
Autologous Bone Marrow ◽  
High Dose Chemotherapy ◽  
High Dose ◽  
Matched Sibling ◽  
Autologous Bone ◽  
Acute Myeloid

For younger patients with acute myeloid leukemia (AML), an allogeneic transplant from a matched sibling may afford the best chance of cure. In patients who are older or without a matched sibling donor, dose intensification can be achieved with an autologous bone marrow transplant (ABMT). We report here the results of a high-dose chemotherapy regime with nonpurged ABMT in 82 adult patients in first remission of AML with a median follow-up of 31 months. The median age was 40 years (range 16 to 57 years). The median interval between remission and ABMT was 5 months (range 1 to 12 months). Twenty-eight of these patients received a second course of the same high-dose chemotherapy and ABMT. The procedure related mortality rate was 6%. The projected leukemia-free survival (LFS) at 5 years is 48% for all 82 patients and 50% for the 76 patients with no known preceding myelodysplastic syndrome. For those patients with primary AML who received a double ABMT the projected LFS is 67%. The interval between remission and ABMT did not predict for either relapse or LFS. ABMT using a multidrug chemotherapy protocol is less toxic than allogeneic BMT yet results in a similar LFS.

scholarly journals Variants ofDNMT3Acause transcript-specific DNA methylation patterns and affect hematopoiesis

2018 ◽  
Vol 1 (6) ◽  
pp. e201800153 ◽  
Author(s):  
Tanja Božić ◽  
Joana Frobel ◽  
Annamarija Raic ◽  
Fabio Ticconi ◽  
Chao-Chung Kuo ◽  
...  
Keyword(s):  
Gene Expression ◽  
Dna Methylation ◽  
Acute Myeloid Leukemia ◽  
Myeloid Leukemia ◽  
Dna Methyltransferase ◽  
De Novo ◽  
Hematopoietic Differentiation ◽  
Hematopoietic Stem ◽  
Acute Myeloid

De novo DNA methyltransferase 3A (DNMT3A) plays pivotal roles in hematopoietic differentiation. In this study, we followed the hypothesis that alternative splicing ofDNMT3Ahas characteristic epigenetic and functional sequels. SpecificDNMT3Atranscripts were either down-regulated or overexpressed in human hematopoietic stem and progenitor cells, and this resulted in complementary and transcript-specific DNA methylation and gene expression changes. Functional analysis indicated that, particularly, transcript 2 (coding for DNMT3A2) activates proliferation and induces loss of a primitive immunophenotype, whereas transcript 4 interferes with colony formation of the erythroid lineage. Notably, in acute myeloid leukemia expression of transcript 2 correlates with its in vitro DNA methylation and gene expression signatures and is associated with overall survival, indicating thatDNMT3Avariants also affect malignancies. Our results demonstrate that specificDNMT3Avariants have a distinct epigenetic and functional impact. Particularly, DNMT3A2 triggers hematopoietic differentiation and the corresponding signatures are reflected in acute myeloid leukemia.

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