Genetic Mosaicism and Cancer: Cause and Effect

Increasing theoretical and experimental evidence suggests that the genomes of both normal and cancer cells are subject to continuous changes as a result of copying errors during replication, defects in chromosome segregation during mitosis, and direct chemical attacks by reactive oxygen species. The...

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Bibliographic Details
Published inCancer research (Chicago, Ill.) Vol. 78; no. 6; pp. 1375 - 1378
Main Author Lichtenstein, Anatoly V.
Format Journal Article
LanguageEnglish
Published United States American Association for Cancer Research, Inc 15.03.2018
Subjects
Aging - genetics
Animals
Cancer
Cell Transformation, Neoplastic - genetics
Embryogenesis
Etiology
Genetic diversity
Genomes
Humans
Mitosis
Mosaicism
Mutation Rate
Neoplasms - genetics
Neoplasms - pathology
Reactive oxygen species
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Summary:Increasing theoretical and experimental evidence suggests that the genomes of both normal and cancer cells are subject to continuous changes as a result of copying errors during replication, defects in chromosome segregation during mitosis, and direct chemical attacks by reactive oxygen species. The process of cellular genetic diversification begins during embryonic development and continues throughout life, leading to the phenomenon of somatic mosaicism. New information about the genetic diversity of cells composing the body makes us reconsider the existing concepts of cancer etiology and pathogenesis. Here, I suggest that a progressively deteriorating microenvironment (“soil”) generates the cancerous “seed” and favors its development. Cancer Res; 78(6); 1375–8. ©2018 AACR.
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ISSN:0008-5472
1538-7445
1538-7445
DOI:10.1158/0008-5472.CAN-17-2769