Dysregulation of non-coding RNAs in gastric cancer.
Gastric cancer (GC) is one of the most common cancers in the world and a significant threat to the health of patients, especially those from China and Japan. The prognosis for patients with late stage GC receiving the standard of care treatment, including surgery, chemotherapy and radiotherapy, remains poor. Developing novel treatment strategies, identifying new molecules for targeted therapy, and devising screening techniques to detect this cancer in its early stages are needed for GC patients. The discovery of non-coding RNAs (ncRNAs), primarily microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), helped to elucidate the mechanisms of tumorigenesis, diagnosis and treatment of GC. Recently, significant research has been conducted on non-coding RNAs and how the regulatory dysfunction of these RNAs impacts the tumorigenesis of GC. In this study, we review papers published in the last five years concerning the dysregulation of non-coding RNAs, especially miRNAs and lncRNAs, in GC. We summarize instances of aberrant expression of the ncRNAs in GC and their effect on survival-related events, including cell cycle regulation, AKT signaling, apoptosis and drug resistance. Additionally, we evaluate how ncRNA dysregulation affects the metastatic process, including the epithelial-mesenchymal transition, stem cells, transcription factor activity, and oncogene and tumor suppressor expression. Lastly, we determine how ncRNAs affect angiogenesis in the microenvironment of GC. We further discuss the use of ncRNAs as potential biomarkers for use in clinical screening, early diagnosis and prognosis of GC. At present, no ideal ncRNAs have been identified as targets for the treatment of GC.
Qing Yang, Ren-Wen Zhang, Peng-Cheng Sui, Hai-Tao He, Lei Ding, Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
Qing
Q
Yang
Qing Yang, Ren-Wen Zhang, Peng-Cheng Sui, Hai-Tao He, Lei Ding, Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
Ren-Wen
RW
Zhang
Qing Yang, Ren-Wen Zhang, Peng-Cheng Sui, Hai-Tao He, Lei Ding, Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
Peng-Cheng
PC
Sui
Qing Yang, Ren-Wen Zhang, Peng-Cheng Sui, Hai-Tao He, Lei Ding, Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
Hai-Tao
HT
He
Qing Yang, Ren-Wen Zhang, Peng-Cheng Sui, Hai-Tao He, Lei Ding, Department of Pathogenobiology, College of Basic Medical Sciences, Jilin University, Changchun 130012, Jilin Province, China.
Lei
L
Ding
D000818:Animals; D014408:Biomarkers, Tumor / Q000235:genetics* / Q000378:metabolism; D015972:Gene Expression Regulation, Neoplastic; D020022:Genetic Predisposition to Disease; D006801:Humans; D035683:MicroRNAs / Q000235:genetics* / Q000378:metabolism; D025202:Molecular Diagnostic Techniques; D010641:Phenotype; D011237:Predictive Value of Tests; D011379:Prognosis; D062085:RNA, Long Noncoding / Q000235:genetics* / Q000378:metabolism; D015398:Signal Transduction; D013274:Stomach Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000401:mortality / Q000473:pathology / Q000628:therapy; D059016:Tumor Microenvironment
D014408:Biomarkers, Tumor; D035683:MicroRNAs; D062085:RNA, Long Noncoding
Biomarker; Dysregulation; Gastric cancer; Non-coding RNA; Tumorigenesis