Etiology of Acute Leukemia: A Review

Acute leukemias constitute some of the most common malignant disorders. Despite significant progress made in the treatment of these disorders, their etiology remains unknown. A large and diverse group of genetic and environmental variables have been proposed. The role of a variety of factors, includ...

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Main Author: Cameron K. Tebbi
Format: Article
Language:English
Published: MDPI AG 2021-05-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/9/2256
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author Cameron K. Tebbi
author_facet Cameron K. Tebbi
author_sort Cameron K. Tebbi
collection DOAJ
description Acute leukemias constitute some of the most common malignant disorders. Despite significant progress made in the treatment of these disorders, their etiology remains unknown. A large and diverse group of genetic and environmental variables have been proposed. The role of a variety of factors, including pre-existing and acquired genetic mutations, exposure to radiation and various chemicals during preconception, pregnancy and throughout life, have been explored. The effects of inherited genetic variations and disorders, pre-existing diseases, infectious agents, hobbies, occupations, prior treatments, and a host of other factors have been proposed, but none is universally applicable to all cases. Variation in the incidence and prognosis based on the age, sex, race, type of the disease, geographic area of residence and other factors are intriguing but remain unexplained. Advances in genomic profiling, including genome-wide gene expression, DNA copy number and single nucleotide polymorphism (SNP) genotype, may shed some light on the role of genetics in these disparities. Separate two-hit hypotheses for the development of acute myeloblastic and lymphoblastic leukemia have been proposed. The latter combines genetics and infection factors resulting in leukemogenesis. A number of pre- and post-natal environmental conditions and exposure to infections, including a mycovirus infected <i>Aspergillus flavus</i>, have been suggested. The exact nature, timing, sequence of the events and mechanisms resulting in the occurrence of leukemia requires further investigations. This review summarizes some of the above factors in acute lymphoblastic and myeloblastic leukemias and the direction for future research on the etiology of these disorders.
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spelling doaj.art-27a60c2e8a50421eae1a03146e35c8022023-11-21T18:46:21ZengMDPI AGCancers2072-66942021-05-01139225610.3390/cancers13092256Etiology of Acute Leukemia: A ReviewCameron K. Tebbi0Children’s Cancer Research Group Laboratory, 13719 North Nebraska Avenue, Tampa, FL 33613, USAAcute leukemias constitute some of the most common malignant disorders. Despite significant progress made in the treatment of these disorders, their etiology remains unknown. A large and diverse group of genetic and environmental variables have been proposed. The role of a variety of factors, including pre-existing and acquired genetic mutations, exposure to radiation and various chemicals during preconception, pregnancy and throughout life, have been explored. The effects of inherited genetic variations and disorders, pre-existing diseases, infectious agents, hobbies, occupations, prior treatments, and a host of other factors have been proposed, but none is universally applicable to all cases. Variation in the incidence and prognosis based on the age, sex, race, type of the disease, geographic area of residence and other factors are intriguing but remain unexplained. Advances in genomic profiling, including genome-wide gene expression, DNA copy number and single nucleotide polymorphism (SNP) genotype, may shed some light on the role of genetics in these disparities. Separate two-hit hypotheses for the development of acute myeloblastic and lymphoblastic leukemia have been proposed. The latter combines genetics and infection factors resulting in leukemogenesis. A number of pre- and post-natal environmental conditions and exposure to infections, including a mycovirus infected <i>Aspergillus flavus</i>, have been suggested. The exact nature, timing, sequence of the events and mechanisms resulting in the occurrence of leukemia requires further investigations. This review summarizes some of the above factors in acute lymphoblastic and myeloblastic leukemias and the direction for future research on the etiology of these disorders.https://www.mdpi.com/2072-6694/13/9/2256etiologyleukemiaacute lymphoblastic leukemiaacute myeloblastic leukemiageneticscauses
spellingShingle Cameron K. Tebbi
Etiology of Acute Leukemia: A Review
Cancers
etiology
leukemia
acute lymphoblastic leukemia
acute myeloblastic leukemia
genetics
causes
title Etiology of Acute Leukemia: A Review
title_full Etiology of Acute Leukemia: A Review
title_fullStr Etiology of Acute Leukemia: A Review
title_full_unstemmed Etiology of Acute Leukemia: A Review
title_short Etiology of Acute Leukemia: A Review
title_sort etiology of acute leukemia a review
topic etiology
leukemia
acute lymphoblastic leukemia
acute myeloblastic leukemia
genetics
causes
url https://www.mdpi.com/2072-6694/13/9/2256
work_keys_str_mv AT cameronktebbi etiologyofacuteleukemiaareview