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Alterations and Co-Occurrence of C-MYC, N-MYC, and L-MYC Expression are Related to Clinical Outcomes in Various Cancers.


ABSTRACT:

Background and objectives

MYC, also known as an oncogenic reprogramming factor, is a multifunctional transcription factor that maintains induced pluripotent stem cells (iPSCs). Although MYC is frequently upregulated in various cancers and is correlated with a poor prognosis, MYC is downregulated and correlated with a good prognosis in lung adenocarcinoma. MYC and two other MYC family genes, MYCN and MYCL, have similar structures and could contribute to tumorigenic conversion both in vitro and in vivo.

Methods and results

We systematically investigated whether MYC family genes act as prognostic factors in various human cancers. We first evaluated alterations in the expression of MYC family genes in various cancers using the Oncomine and The Cancer Genome Atlas (TCGA) database and their mutation and copy number alterations using the TCGA database with cBioPortal. Then, we investigated the association between the expression of MYC family genes and the prognosis of cancer patients using various prognosis databases. Multivariate analysis also confirmed that co-expression of MYC/MYCL/MYCN was significantly associated with the prognosis of lung, gastric, liver, and breast cancers.

Conclusions

Taken together, our results demonstrate that the MYC family can function not only as an oncogene but also as a tumor suppressor gene in various cancers, which could be used to develop a novel approach to cancer treatment.

SUBMITTER: Lee M 

PROVIDER: S-EPMC10226856 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature

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Alterations and Co-Occurrence of C-MYC, N-MYC, and L-MYC Expression are Related to Clinical Outcomes in Various Cancers.

Lee Moonjung M   Seok Jaekwon J   Saha Subbroto Kumar SK   Cho Sungha S   Jeong Yeojin Y   Gil Minchan M   Kim Aram A   Shin Ha Youn HY   Bae Hojae H   Do Jeong Tae JT   Kim Young Bong YB   Cho Ssang-Goo SG  

International journal of stem cells 20230430 2


<h4>Background and objectives</h4><i>MYC</i>, also known as an oncogenic reprogramming factor, is a multifunctional transcription factor that maintains induced pluripotent stem cells (iPSCs). Although <i>MYC</i> is frequently upregulated in various cancers and is correlated with a poor prognosis, <i>MYC</i> is downregulated and correlated with a good prognosis in lung adenocarcinoma. <i>MYC</i> and two other <i>MYC</i> family genes, <i>MYCN</i> and <i>MYCL</i>, have similar structures and could  ...[more]

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