TY - JOUR
T1 - m1A Regulated Genes Modulate PI3K/AKT/mTOR and ErbB Pathways in Gastrointestinal Cancer
AU - Zhao, Yueshui
AU - Zhao, Q.
AU - Kaboli, Parham Jabbarzadeh
AU - Shen, Jing
AU - Li, Mingxing
AU - Wu, Xu
AU - Yin, Jianhua
AU - Zhang, Hanyu
AU - Wu, Yuanlin
AU - Lin, Ling
AU - Zhang, Lingling
AU - Wan, Lin
AU - Wen, Qinglian
AU - Li, Xiang
AU - Cho, Chi Hin
AU - Yi, Tao
AU - Li, Jing
AU - Xiao, Zhangang
N1 - Funding Information:
This work was supported by the National Natural Science Foundation of China (grant nos. 81503093 , 81602166 , and 81672444 ) and the Joint Funds of the Southwest Medical University & Luzhou ( 2016LZXNYD-T01 , 2017LZXNYD-Z05 , and 2017LZXNYD-J09 ).
Publisher copyright:
© The Author(s) 2019
PY - 2019/10
Y1 - 2019/10
N2 - BACKGROUND: Gene expression can be posttranscriptionally regulated by a complex network of proteins. N1-methyladenosine (m1A) is a newly validated RNA modification. However, little is known about both its influence and biogenesis in tumor development. METHODS: This study analyzed TCGA data of patients with five kinds of gastrointestinal (GI) cancers. Using data from cBioPortal, molecular features of the nine known m1A-related enzymes in GI cancers were investigated. Using a variety of bioinformatics approach, the impact of m1A regulators on its downstream signaling pathway was studied. To further confirm this regulation, the effect of m1A writer ALKBH3 knockdown was studied using RNA-seq data from published database. RESULTS: Dysregulation and multiple types of genetic alteration of putative m1A-related enzymes in tumor samples were observed. The ErbB and mTOR pathways with ErbB2, mTOR, and AKT1S1 hub genes were identified as being regulated by m1A-related enzymes. The expression of both ErbB2 and AKT1S1 was decreased after m1A writer ALKBH3 knockdown. Furthermore, Gene Ontology analysis revealed that m1A downstream genes were associated with cell proliferation, and the results showed that m1A genes are reliably linked to mTOR. CONCLUSION: This study demonstrated for the first time the dysregulation of m1A regulators in GI cancer and its signaling pathways and will contribute to the understanding of RNA modification in cancer.
AB - BACKGROUND: Gene expression can be posttranscriptionally regulated by a complex network of proteins. N1-methyladenosine (m1A) is a newly validated RNA modification. However, little is known about both its influence and biogenesis in tumor development. METHODS: This study analyzed TCGA data of patients with five kinds of gastrointestinal (GI) cancers. Using data from cBioPortal, molecular features of the nine known m1A-related enzymes in GI cancers were investigated. Using a variety of bioinformatics approach, the impact of m1A regulators on its downstream signaling pathway was studied. To further confirm this regulation, the effect of m1A writer ALKBH3 knockdown was studied using RNA-seq data from published database. RESULTS: Dysregulation and multiple types of genetic alteration of putative m1A-related enzymes in tumor samples were observed. The ErbB and mTOR pathways with ErbB2, mTOR, and AKT1S1 hub genes were identified as being regulated by m1A-related enzymes. The expression of both ErbB2 and AKT1S1 was decreased after m1A writer ALKBH3 knockdown. Furthermore, Gene Ontology analysis revealed that m1A downstream genes were associated with cell proliferation, and the results showed that m1A genes are reliably linked to mTOR. CONCLUSION: This study demonstrated for the first time the dysregulation of m1A regulators in GI cancer and its signaling pathways and will contribute to the understanding of RNA modification in cancer.
UR - http://www.scopus.com/inward/record.url?scp=85069699699&partnerID=8YFLogxK
U2 - 10.1016/j.tranon.2019.06.007
DO - 10.1016/j.tranon.2019.06.007
M3 - Journal article
AN - SCOPUS:85069699699
SN - 1936-5233
VL - 12
SP - 1323
EP - 1333
JO - Translational Oncology
JF - Translational Oncology
IS - 10
ER -
