Accession ID: MIRT004297 [miRNA, hsa-miR-101 ::
PTGS2, target gene]
| miRNA name | hsa-miR-101 |
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| Gene Symbol | PTGS2 LinkOut: [ Entrez Gene | BioGPS | Wikipedia | iHop ] |
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| Synonyms | COX-2, COX2, GRIPGHS, PGG/HS, PGHS-2, PHS-2, hCox-2 |
| Description | prostaglandin-endoperoxide synthase 2 (prostaglandin G/H synthase and cyclooxygenase) |
| Transcript | NM_000963 LinkOut: [ RefSeq ] |
| Expression | LinkOut: [ BioGPS ] |
| KEGG Pathway |
hsa00590 Arachidonic acid metabolism - Homo sapiens (human) hsa04370 VEGF signaling pathway - Homo sapiens (human) hsa05140 Leishmaniasis - Homo sapiens (human) hsa05200 Pathways in cancer - Homo sapiens (human) hsa05222 Small cell lung cancer - Homo sapiens (human) |
| Putative miRNA Targets on PTGS2 | LinkOut: [ TargetScan 5.1 | MicroCosm | miRNAMap 2.0 ] |
| 3'UTR of PTGS2 (miRNA target sites are highlighted) |
>PTGS2|NM_000963|3'UTR 1 TAGAAGTCTAATGATCATATTTATTTATTTATATGAACCATGTCTATTAATTTAATTATTTAATAATATTTATATTAAAC 81 TCCTTATGTTACTTAACATCTTCTGTAACAGAAGTCAGTACTCCTGTTGCGGAGAAAGGAGTCATACTTGTGAAGACTTT 161 TATGTCACTACTCTAAAGATTTTGCTGTTGCTGTTAAGTTTGGAAAACAGTTTTTATTCTGTTTTATAAACCAGAGAGAA 241 ATGAGTTTTGACGTCTTTTTACTTGAATTTCAACTTATATTATAAGAACGAAAGTAAAGATGTTTGAATACTTAAACACT 321 GTCACAAGATGGCAAAATGCTGAAAGTTTTTACACTGTCGATGTTTCCAATGCATCTTCCATGATGCATTAGAAGTAACT 401 AATGTTTGAAATTTTAAAGTACTTTTGGTTATTTTTCTGTCATCAAACAAAAACAGGTATCAGTGCATTATTAAATGAAT 481 ATTTAAATTAGACATTACCAGTAATTTCATGTCTACTTTTTAAAATCAGCAATGAAACAATAATTTGAAATTTCTAAATT 561 CATAGGGTAGAATCACCTGTAAAAGCTTGTTTGATTTCTTAAAGTTATTAAACTTGTACATATACCAAAAAGAAGCTGTC 641 TTGGATTTAAATCTGTAAAATCAGTAGAAATTTTACTACAATTGCTTGTTAAAATATTTTATAAGTGATGTTCCTTTTTC 721 ACCAAGAGTATAAACCTTTTTAGTGTGACTGTTAAAACTTCCTTTTAAATCAAAATGCCAAATTTATTAAGGTGGTGGAG 801 CCACTGCAGTGTTATCTTAAAATAAGAATATTTTGTTGAGATATTCCAGAATTTGTTTATATGGCTGGTAACATGTAAAA 881 TCTATATCAGCAAAAGGGTCTACCTTTAAAATAAGCAATAACAAAGAAGAAAACCAAATTATTGTTCAAATTTAGGTTTA 961 AACTTTTGAAGCAAACTTTTTTTTATCCTTGTGCACTGCAGGCCTGGTACTCAGATTTTGCTATGAGGTTAATGAAGTAC 1041 CAAGCTGTGCTTGAATAATGATATGTTTTCTCAGATTTTCTGTTGTACAGTTTAATTTAGCAGTCCATATCACATTGCAA 1121 AAGTAGCAATGACCTCATAAAATACCTCTTCAAAATGCTTAAATTCATTTCACACATTAATTTTATCTCAGTCTTGAAGC 1201 CAATTCAGTAGGTGCATTGGAATCAAGCCTGGCTACCTGCATGCTGTTCCTTTTCTTTTCTTCTTTTAGCCATTTTGCTA 1281 AGAGACACAGTCTTCTCATCACTTCGTTTCTCCTATTTTGTTTTACTAGTTTTAAGATCAGAGTTCACTTTCTTTGGACT 1361 CTGCCTATATTTTCTTACCTGAACTTTTGCAAGTTTTCAGGTAAACCTCAGCTCAGGACTGCTATTTAGCTCCTCTTAAG 1441 AAGATTAAAAGAGAAAAAAAAAGGCCCTTTTAAAAATAGTATACACTTATTTTAAGTGAAAAGCAGAGAATTTTATTTAT 1521 AGCTAATTTTAGCTATCTGTAACCAAGATGGATGCAAAGAGGCTAGTGCCTCAGAGAGAACTGTACGGGGTTTGTGACTG 1601 GAAAAAGTTACGTTCCCATTCTAATTAATGCCCTTTCTTATTTAAAAACAAAACCAAATGATATCTAAGTAGTTCTCAGC 1681 AATAATAATAATGACGATAATACTTCTTTTCCACATCTCATTGTCACTGACATTTAATGGTACTGTATATTACTTAATTT 1761 ATTGAAGATTATTATTTATGTCTTATTAGGACACTATGGTTATAAACTGTGTTTAAGCCTACAATCATTGATTTTTTTTT 1841 GTTATGTCACAATCAGTATATCTTCTTTGGGGTTACCTCTCTGAATATTATGTAAACAATCCAAAGAAATGATTGTATTA 1921 AGATTTGTGAATAAATTTTTAGAAATCTGATTGGCATATTGAGATATTTAAGGTTGAATGTTTGTCCTTAGGATAGGCCT 2001 ATGTGCTAGCCCACAAAGAATATTGTCTCATTAGCCTGAATGTGCCATAAGACTGACCTTTTAAAATGTTTTGAGGGATC 2081 TGTGGATGCTTCGTTAATTTGTTCAGCCACAATTTATTGAGAAAATATTCTGTGTCAAGCACTGTGGGTTTTAATATTTT 2161 TAAATCAAACGCTGATTACAGATAATAGTATTTATATAAATAATTGAAAAAAATTTTCTTTTGGGAAGAGGGAGAAAATG 2241 AAATAAATATCATTAAAGATAACTCAGGAGAATCTTCTTTACAATTTTACGTTTAGAATGTTTAAGGTTAAGAAAGAAAT 2321 AGTCAATATGCTTGTATAAAACACTGTTCACTGTTTTTTTTAAAAAAAAAACTTGATTTGTTATTAACATTGATCTGCTG 2401 ACAAAACCTGGGAATTTGGGTTGTGTATGCGAATGTTTCAGTGCCTCAGACAAATGTGTATTTAACTTATGTAAAAGATA 2481 AGTCTGGAAATAAATGTCTGTTTATTTTTGTACTATTTAAAAATTGACAGATCTTTTCTGAAGAAAAAAAAAAAAAAA Target sites Provided by authors Predicted by miRanda |
| miRNA:Target | hsa-miR-101 :: PTGS2 [ Functional MTI ] | ||||||
|---|---|---|---|---|---|---|---|
| Validation Method | qRT-PCR , Luciferase reporter assay , Western blot | ||||||
| Conditions | LS-174T | ||||||
| Location of target site | 3'UTR | ||||||
| Tools used in this research | miRanda | ||||||
| Original Description (Extracted from the article) | ... luciferase activity significantly decreases after the cotransfection with both pGL3-seed and miR-101 ... - Strillacci, A. Griffoni, C. Sansone, P. et al., 2009, Exp Cell Res. |
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| miRNA-target interactions (Provided by authors) |
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| Article |
- Strillacci, A.
Griffoni, C.
Sansone, P. et al. - Exp Cell Res, 2009
Overexpressed cyclooxygenase-2 (COX-2) strongly contributes to the growth and invasiveness of tumoral cells in patients affected by colorectal cancer (CRC). It has been demonstrated that COX-2 overexpression depends on different cellular pathways involving both transcriptional and post-transcriptional regulations. We assumed that COX-2 expression could be regulated also by microRNAs (miRNAs) since these short RNA molecules participate to the fine regulation of several genes implicated in cell growth and differentiation. In this paper, we report the inverse correlation between COX-2 and miR-101 expression in colon cancer cell lines and we demonstrated in vitro the direct inhibition of COX-2 mRNA translation mediated by miR-101. Moreover, this correlation was supported by data collected ex vivo, in which colon cancer tissues and liver metastases derived from CRC patients were analyzed. These findings provide a novel molecular insight in the modulation of COX-2 at post-transcriptional level by miR-101 and strengthen the observation that miRNAs are highly implicated in the control of gene expression. An impairment of miR-101 levels could represent one of the leading causes of COX-2 overexpression in colon cancer cells.
LinkOut: [PMID: 19133256]
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| miRNA:Target | hsa-miR-101 :: PTGS2 [ Functional MTI ] |
|---|---|
| Validation Method | qRT-PCR |
| Conditions | BGC-823, MKN-45, SGC-7901 |
| Original Description (Extracted from the article) | ... miR-101 inhibits expression of EZH2, Cox-2, Mcl-1 and Fos.//In this study, we report that the expression of microRNA-101 (miR-101) is down-regulated in gastric cancer tissues and cells, and ectopic expression of miR-101 significantly inhibits cellular proliferation, migration and invasion of gastric cancer cells by targeting EZH2, Cox-2, Mcl-1 and Fos.//As shown in Fig. 5, although infection of adenovirus up-regulated the expression of EZH2, Cox-2, Mcl-1 and Fos in different degree in gastric cancer cells, the ectopic expression of miR-101 still showed an inhibition effect on the expression of these four genes. The mRNA levels of EZH2, Cox-2, Mcl-1 and Fos in Ad-miR-101-infected BGC-823, SGC-7901, MKN-45 and AGS cells were much lower than the mRNA level of all the Ad-EGFP-infected cells, except the Cox-2 in SGC-7901 cells. ... - Wang, H. J. Ruan, H. J. He, X. J. Ma, Y. Y. et al., 2010, Eur J Cancer. |
| Article |
- Wang, H. J.
Ruan, H. J.
He, X. J.
Ma, Y. Y. et al. - Eur J Cancer, 2010
MicroRNAs (miRNAs) are short non-coding RNA molecules playing regulatory roles by repressing translation or cleaving RNA transcripts. Dysregulated expression of miRNAs is associated with several diseases, including cancer. In this study, we report that the expression of microRNA-101 (miR-101) is down-regulated in gastric cancer tissues and cells, and ectopic expression of miR-101 significantly inhibits cellular proliferation, migration and invasion of gastric cancer cells by targeting EZH2, Cox-2, Mcl-1 and Fos. Our animal study also indicates that miR-101 could potentially suppress tumour growth in vivo. Collectively, these results suggest that miR-101 may function as a tumour suppressor in gastric cancer, as it has an inhibitory role not only in cellular proliferation, migration and invasion in vitro, but also in tumour growth in vivo.
LinkOut: [PMID: 20712078]
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