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. 2016 Sep 19;3(6):e1225547.
doi: 10.1080/23723556.2016.1225547. eCollection 2016.

Cancer cells activate damage-tolerant and error-prone DNA synthesis

Affiliations

Cancer cells activate damage-tolerant and error-prone DNA synthesis

Elizabeth Mutter-Rottmayer et al. Mol Cell Oncol. .

Abstract

Trans-lesion synthesis (TLS) is a DNA damage-tolerant and error-prone mode of DNA replication. Recent work shows that many cancer cells coopt an aberrantly expressed germ cell protein, melanoma antigen-A4 (MAGE-A4), to activate TLS. MAGE-A4-induced "pathological TLS" provides a potential mechanism through which neoplastic cells can tolerate intrinsic and therapeutic genotoxicity while acquiring mutability.

Keywords: Cancer-testes antigens (CTA); DNA damage; RAD18; genome maintenance; melanoma antigen-A4 (MAGE-A4); mutagenesis; trans-lesion synthesis (TLS).

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Figures

Figure 1.
Figure 1.
Potential roles of MAGE-A4–driven trans-lesion synthesis in tumorigenesis. Melanoma antigen-A4 (MAGE-A4)-induced TLS provides a mechanism by which neoplastic cells can tolerate carcinogenic exposures, oncogenic DNA replication stress, and therapy-induced DNA damage while promoting mutagenesis. The MAGE-A4–RAD18 signaling axis may provide opportunities for therapies that are highly specific for cancer cells.

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