Depicting the Profile of METTL3-Mediated lncRNA m6A Modification Variants and Identified SNHG7 as a Prognostic Indicator of MNNG-Induced Gastric Cancer
Abstract
:1. Introduction
2. Materials and Methods
2.1. Public GC Data Analysis
2.2. Clinical Specimens and Data
2.3. Cell Lines and Cell Culture Transfection
2.4. MNNG-Induced Malignant Transformation of GES-1 Cell
2.5. Quantitative Real-Time PCR (qRT-PCR) and Plasmid Transfection
2.6. Western Blotting Analysis
2.7. RNA Extraction and qRT-PCR
2.8. Scratch Wound Healing Assays
2.9. Cell Invasion Assays
2.10. MeRIP-Seq
2.11. Functional Enrichment of Target lncRNAs
2.12. Statistical Analyses
3. Results
3.1. Subsection
3.1.1. Knock-Down of METTL3 Impacted the Migration and Invasion of MC and GC Cells In Vitro
3.1.2. Detection of m6A Modifications on lncRNAs in the MC-40 and HGC-27 Cells Using MeRIP-Seq Technologies
3.1.3. Functional Annotation of m6A on lncRNAs Regulated by METTL3
3.1.4. Screening of Key Downstream lncRNAs Potentially Regulated by METTL3
3.1.5. SNHG7 Was Identified as a Downstream Target of METTL3
3.1.6. SNHG7 Is Up-Regulated in GC and Associated with a Poor Prognosis
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Gene | Primer | Sequences |
---|---|---|
PLEKHM1P | Forward primer | 5′-CCAAGACGATGCCTCAGTGATTCC-3′ |
Reverse primer | 5′-CAACACGGAACCTATGCGGAGAC-3′ | |
MYH16 | Forward primer | 5′-GAAGGAGCACCAGGACCGAATTG-3′ |
Reverse primer | 5′-ACCTTGGCGTTGGCTTCTGATAAG-3′ | |
PNPLA6 | Forward primer | 5′-GTCGGTTTGCTCCATCCCTTAGTC-3′ |
Reverse primer | 5′-GAGCCTCCATCGGTTGATTCCAG-3′ | |
FGF22 | Forward primer | 5′-ATCTGGCAGGTGAGGACAAGGAG-3′ |
Reverse primer | 5′-GATGAAAGCGGTGGGAAGGACAG-3′ | |
THOP1 | Forward primer | 5′-TCGGCAAGTTCTACCTGGACCTG-3′ |
Reverse primer | 5′-GTGGCTGAGTGAGACTGGAAACG-3′ | |
RELT | Forward primer | 5′-TAGCCGCCACTACTCCTGTTCC-3′ |
Reverse primer | 5′-GGACCAGAGCCTTAGCCTGAGAG-3′ | |
MC1R | Forward primer | 5′-ACCCTTAGGAGGCAGCAGACAC-3′ |
Reverse primer | 5′-CACGGTCATTGGAAGTAGGCTCAG-3′ | |
C12orf60 | Forward primer | 5′-CACACTGACACTGGCACACCTG-3′ |
Reverse primer | 5′-GATCACACCGAGGCTTGGAGAATG-3′ | |
NADSYN1 | Forward primer | 5′-CCTTGGCTCGCTTCTTCCTTGG-3′ |
Reverse primer | 5′-ACTGGTGTTGCTTGTGTGTTTTGTG-3′ | |
RXRA | Forward primer | 5′-AATGCTGCCTTCTGCCTTCTCAAG-3′ |
Reverse primer | 5′-CACCAACTCACTCCACCAATACCTG-3′ | |
TNK2 | Forward primer | 5′-TAACTCATCGGCTACTCAGGAAGGG-3′ |
Reverse primer | 5′-ACACGGCGGTCCAGTATGATAGG-3′ | |
MAMDC4 | Forward primer | 5′-GACACAAGCCCAGACGCACTAC-3′ |
Reverse primer | 5′-CCACTGCCTCAAACACCACCTG-3′ | |
LPCAT1 | Forward primer | 5′-GCTGCCGTATGCTGATCCTAACC-3′ |
Reverse primer | 5′-CACCTCTTCCCAAAGCCATCTGAC-3′ | |
AXIN1 | Forward primer | 5′-TCCATCCACTGAGAACCACTGAGG-3′ |
Reverse primer | 5′-TGACAAGAGGACACAGCGAGGAG-3′ | |
SNHG7 | Forward primer | 5′-TGCTCACTGGAGATGACACG-3′ |
Reverse primer | 5′-TCCATCACAGGCGAAGTCAC-3′ | |
GAPDH | Forward primer | 5′-TCCTCTGACTTCAACAGCGACAC-3′ |
Reverse primer | 5′-CACCCTGTTGCTGTAGCCAAATTC-3′ |
Gene | Regulation | |||
---|---|---|---|---|
MC-40 | AGS | HGC-27 | TCGA Expression Type | |
PLEKHM1P | Down | Down * | Up * | Up * |
MYH16 | Up | Down | Down * | Up * |
PNPLA6 | Up * | Up * | Up * | Up * |
FGF22 | Up * | Down * | Up * | Down * |
THOP1 | Up * | Up | Up * | Up * |
RELT | Up * | Up * | Up * | Up * |
MC1R | Down * | Up | Up * | Up * |
C12orf60 | Down | Up * | Up * | Up * |
NADSYN1 | Up | Down * | Up * | Up * |
RXRA | Up * | Up * | Up * | Down * |
TNK2 | Up * | Up * | Up * | Up * |
MAMDC4 | Up | Up | Up * | Up * |
LPCAT1 | Up * | Up * | Up | Up * |
AXIN1 | Up * | Up * | Up * | Up * |
SNHG7 | Up * | Up * | Up * | Up * |
Gene | m6A Site Confidence (Number) | ||||
---|---|---|---|---|---|
Low | Moderate | High | Very High | Summary | |
RELT | 4 | 6 | 7 | 3 | 20 |
SNHG7 | 1 | 4 | 1 | 0 | 6 |
TNK2 | 7 | 8 | 10 | 13 | 38 |
PNPLA6 | 1 | 1 | 2 | 0 | 4 |
Geo Dataset | Public Year | Country | Platform | Samples | N |
---|---|---|---|---|---|
GSE54129 | 2017 | China | GPL570 | GC | 111 |
Normal Tissue | 21 | ||||
GSE13911 | 2008 | Italy | GPL570 | GC | 38 |
Normal Tissue | 31 | ||||
GSE19826 | 2010 | China | GPL570 | GC | 12 |
Normal Tissue | 12 |
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Liu, T.; Feng, Y.; Yang, S.; Ge, Y.; Zhang, T.; Li, J.; Li, C.; Ruan, Y.; Luo, B.; Liang, G. Depicting the Profile of METTL3-Mediated lncRNA m6A Modification Variants and Identified SNHG7 as a Prognostic Indicator of MNNG-Induced Gastric Cancer. Toxics 2023, 11, 944. https://doi.org/10.3390/toxics11110944
Liu T, Feng Y, Yang S, Ge Y, Zhang T, Li J, Li C, Ruan Y, Luo B, Liang G. Depicting the Profile of METTL3-Mediated lncRNA m6A Modification Variants and Identified SNHG7 as a Prognostic Indicator of MNNG-Induced Gastric Cancer. Toxics. 2023; 11(11):944. https://doi.org/10.3390/toxics11110944
Chicago/Turabian StyleLiu, Tong, Yanlu Feng, Sheng Yang, Yiling Ge, Tianyi Zhang, Jie Li, Chengyun Li, Ye Ruan, Bin Luo, and Geyu Liang. 2023. "Depicting the Profile of METTL3-Mediated lncRNA m6A Modification Variants and Identified SNHG7 as a Prognostic Indicator of MNNG-Induced Gastric Cancer" Toxics 11, no. 11: 944. https://doi.org/10.3390/toxics11110944