Accession ID: MIRT000978 [miRNA, hsa-miR-15b ::
BCL2, target gene]
| pre-miRNA ID | hsa-mir-15b LinkOut: [miRBase ] |
|---|---|
| Synonyms | MIRN15B, hsa-mir-15b, miR-15b, MIR15B |
| Description | Homo sapiens miR-15b stem-loop |
| Comment | This miRNA sequence was predicted based on homology to a verified miRNA from mouse . |
| 2nd Structure of pre-miRNA |  |
| Mature miRNA | hsa-miR-15b-3p |
|---|---|
| Mature Sequence | 58| CGAAUCAUUAUUUGCUGCUCUA |79 |
| Evidence | Experimental |
| Experiments | Cloned |
| Putative hsa-miR-15b-3p Targets | LinkOut: [ TargetScanS 5.1 | MicroCosm | microRNA.org | miRecords | miRDB | miRo | miRNAMap 2.0 ] |
| Mature miRNA | hsa-miR-15b-5p |
| Mature Sequence | 20| UAGCAGCACAUCAUGGUUUACA |41 |
| Evidence | Experimental |
| Experiments | Cloned |
| Putative hsa-miR-15b-5p Targets | LinkOut: [ TargetScanS 5.1 | MicroCosm | microRNA.org | miRecords | miRDB | miRo | miRNAMap 2.0 ] |
 |
| Gene Symbol | BCL2 LinkOut: [ Entrez Gene | BioGPS | Wikipedia | iHop ] | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Synonyms | Bcl-2 | ||||||||||||||||||||
| Description | B-cell CLL/lymphoma 2 | ||||||||||||||||||||
| Transcript | NM_000633 LinkOut: [ RefSeq ] | ||||||||||||||||||||
| Other Transcripts | NM_000657 | ||||||||||||||||||||
| Expression | LinkOut: [ BioGPS ] | ||||||||||||||||||||
| KEGG Pathway |
hsa04210 Apoptosis - Homo sapiens (human) hsa04510 Focal adhesion - Homo sapiens (human) hsa04722 Neurotrophin signaling pathway - Homo sapiens (human) hsa05014 Amyotrophic lateral sclerosis (ALS) - Homo sapiens (human) hsa05200 Pathways in cancer - Homo sapiens (human) hsa05210 Colorectal cancer - Homo sapiens (human) hsa05215 Prostate cancer - Homo sapiens (human) hsa05222 Small cell lung cancer - Homo sapiens (human) |
||||||||||||||||||||
| Putative miRNA Targets on BCL2 | LinkOut: [ TargetScan 5.1 | MicroCosm | miRNAMap 2.0 ] | ||||||||||||||||||||
| 3'UTR of BCL2 (miRNA target sites are highlighted) |
>BCL2|NM_000633|3'UTR 1 TGAAGTCAACATGCCTGCCCCAAACAAATATGCAAAAGGTTCACTAAAGCAGTAGAAATAATATGCATTGTCAGTGATGT 81 ACCATGAAACAAAGCTGCAGGCTGTTTAAGAAAAAATAACACACATATAAACATCACACACACAGACAGACACACACACA 161 CACAACAATTAACAGTCTTCAGGCAAAACGTCGAATCAGCTATTTACTGCCAAAGGGAAATATCATTTATTTTTTACATT 241 ATTAAGAAAAAAAGATTTATTTATTTAAGACAGTCCCATCAAAACTCCTGTCTTTGGAAATCCGACCACTAATTGCCAAG 321 CACCGCTTCGTGTGGCTCCACCTGGATGTTCTGTGCCTGTAAACATAGATTCGCTTTCCATGTTGTTGGCCGGATCACCA 401 TCTGAAGAGCAGACGGATGGAAAAAGGACCTGATCATTGGGGAAGCTGGCTTTCTGGCTGCTGGAGGCTGGGGAGAAGGT 481 GTTCATTCACTTGCATTTCTTTGCCCTGGGGGCTGTGATATTAACAGAGGGAGGGTTCCTGTGGGGGGAAGTCCATGCCT 561 CCCTGGCCTGAAGAAGAGACTCTTTGCATATGACTCACATGATGCATACCTGGTGGGAGGAAAAGAGTTGGGAACTTCAG 641 ATGGACCTAGTACCCACTGAGATTTCCACGCCGAAGGACAGCGATGGGAAAAATGCCCTTAAATCATAGGAAAGTATTTT 721 TTTAAGCTACCAATTGTGCCGAGAAAAGCATTTTAGCAATTTATACAATATCATCCAGTACCTTAAGCCCTGATTGTGTA 801 TATTCATATATTTTGGATACGCACCCCCCAACTCCCAATACTGGCTCTGTCTGAGTAAGAAACAGAATCCTCTGGAACTT 881 GAGGAAGTGAACATTTCGGTGACTTCCGCATCAGGAAGGCTAGAGTTACCCAGAGCATCAGGCCGCCACAAGTGCCTGCT 961 TTTAGGAGACCGAAGTCCGCAGAACCTGCCTGTGTCCCAGCTTGGAGGCCTGGTCCTGGAACTGAGCCGGGGCCCTCACT 1041 GGCCTCCTCCAGGGATGATCAACAGGGCAGTGTGGTCTCCGAATGTCTGGAAGCTGATGGAGCTCAGAATTCCACTGTCA 1121 AGAAAGAGCAGTAGAGGGGTGTGGCTGGGCCTGTCACCCTGGGGCCCTCCAGGTAGGCCCGTTTTCACGTGGAGCATGGG 1201 AGCCACGACCCTTCTTAAGACATGTATCACTGTAGAGGGAAGGAACAGAGGCCCTGGGCCCTTCCTATCAGAAGGACATG 1281 GTGAAGGCTGGGAACGTGAGGAGAGGCAATGGCCACGGCCCATTTTGGCTGTAGCACATGGCACGTTGGCTGTGTGGCCT 1361 TGGCCCACCTGTGAGTTTAAAGCAAGGCTTTAAATGACTTTGGAGAGGGTCACAAATCCTAAAAGAAGCATTGAAGTGAG 1441 GTGTCATGGATTAATTGACCCCTGTCTATGGAATTACATGTAAAACATTATCTTGTCACTGTAGTTTGGTTTTATTTGAA 1521 AACCTGACAAAAAAAAAGTTCCAGGTGTGGAATATGGGGGTTATCTGTACATCCTGGGGCATTAAAAAAAAAATCAATGG 1601 TGGGGAACTATAAAGAAGTAACAAAAGAAGTGACATCTTCAGCAAATAAACTAGGAAATTTTTTTTTCTTCCAGTTTAGA 1681 ATCAGCCTTGAAACATTGATGGAATAACTCTGTGGCATTATTGCATTATATACCATTTATCTGTATTAACTTTGGAATGT 1761 ACTCTGTTCAATGTTTAATGCTGTGGTTGATATTTCGAAAGCTGCTTTAAAAAAATACATGCATCTCAGCGTTTTTTTGT 1841 TTTTAATTGTATTTAGTTATGGCCTATACACTATTTGTGAGCAAAGGTGATCGTTTTCTGTTTGAGATTTTTATCTCTTG 1921 ATTCTTCAAAAGCATTCTGAGAAGGTGAGATAAGCCCTGAGTCTCAGCTACCTAAGAAAAACCTGGATGTCACTGGCCAC 2001 TGAGGAGCTTTGTTTCAACCAAGTCATGTGCATTTCCACGTCAACAGAATTGTTTATTGTGACAGTTATATCTGTTGTCC 2081 CTTTGACCTTGTTTCTTGAAGGTTTCCTCGTCCCTGGGCAATTCCGCATTTAATTCATGGTATTCAGGATTACATGCATG 2161 TTTGGTTAAACCCATGAGATTCATTCAGTTAAAAATCCAGATGGCAAATGACCAGCAGATTCAAATCTATGGTGGTTTGA 2241 CCTTTAGAGAGTTGCTTTACGTGGCCTGTTTCAACACAGACCCACCCAGAGCCCTCCTGCCCTCCTTCCGCGGGGGCTTT 2321 CTCATGGCTGTCCTTCAGGGTCTTCCTGAAATGCAGTGGTGCTTACGCTCCACCAAGAAAGCAGGAAACCTGTGGTATGA 2401 AGCCAGACCTCCCCGGCGGGCCTCAGGGAACAGAATGATCAGACCTTTGAATGATTCTAATTTTTAAGCAAAATATTATT 2481 TTATGAAAGGTTTACATTGTCAAAGTGATGAATATGGAATATCCAATCCTGTGCTGCTATCCTGCCAAAATCATTTTAAT 2561 GGAGTCAGTTTGCAGTATGCTCCACGTGGTAAGATCCTCCAAGCTGCTTTAGAAGTAACAATGAAGAACGTGGACGTTTT 2641 TAATATAAAGCCTGTTTTGTCTTTTGTTGTTGTTCAAACGGGATTCACAGAGTATTTGAAAAATGTATATATATTAAGAG 2721 GTCACGGGGGCTAATTGCTGGCTGGCTGCCTTTTGCTGTGGGGTTTTGTTACCTGGTTTTAATAACAGTAAATGTGCCCA 2801 GCCTCTTGGCCCCAGAACTGTACAGTATTGTGGCTGCACTTGCTCTAAGAGTAGTTGATGTTGCATTTTCCTTATTGTTA 2881 AAAACATGTTAGAAGCAATGAATGTATATAAAAGCCTCAACTAGTCATTTTTTTCTCCTCTTCTTTTTTTTCATTATATC 2961 TAATTATTTTGCAGTTGGGCAACAGAGAACCATCCCTATTTTGTATTGAAGAGGGATTCACATCTGCATCTTAACTGCTC 3041 TTTATGAATGAAAAAACAGTCCTCTGTATGTACTCCTCTTTACACTGGCCAGGGTCAGAGTTAAATAGAGTATATGCACT 3121 TTCCAAATTGGGGACAAGGGCTCTAAAAAAAGCCCCAAAAGGAGAAGAACATCTGAGAACCTCCTCGGCCCTCCCAGTCC 3201 CTCGCTGCACAAATACTCCGCAAGAGAGGCCAGAATGACAGCTGACAGGGTCTATGGCCATCGGGTCGTCTCCGAAGATT 3281 TGGCAGGGGCAGAAAACTCTGGCAGGCTTAAGATTTGGAATAAAGTCACAGAATTAAGGAAGCACCTCAATTTAGTTCAA 3361 ACAAGACGCCAACATTCTCTCCACAGCTCACTTACCTCTCTGTGTTCAGATGTGGCCTTCCATTTATATGTGATCTTTGT 3441 TTTATTAGTAAATGCTTATCATCTAAAGATGTAGCTCTGGCCCAGTGGGAAAAATTAGGAAGTGATTATAAATCGAGAGG 3521 AGTTATAATAATCAAGATTAAATGTAAATAATCAGGGCAATCCCAACACATGTCTAGCTTTCACCTCCAGGATCTATTGA 3601 GTGAACAGAATTGCAAATAGTCTCTATTTGTAATTGAACTTATCCTAAAACAAATAGTTTATAAATGTGAACTTAAACTC 3681 TAATTAATTCCAACTGTACTTTTAAGGCAGTGGCTGTTTTTAGACTTTCTTATCACTTATAGTTAGTAATGTACACCTAC 3761 TCTATCAGAGAAAAACAGGAAAGGCTCGAAATACAAGCCATTCTAAGGAAATTAGGGAGTCAGTTGAAATTCTATTCTGA 3841 TCTTATTCTGTGGTGTCTTTTGCAGCCCAGACAAATGTGGTTACACACTTTTTAAGAAATACAATTCTACATTGTCAAGC 3921 TTATGAAGGTTCCAATCAGATCTTTATTGTTATTCAATTTGGATCTTTCAGGGATTTTTTTTTTAAATTATTATGGGACA 4001 AAGGACATTTGTTGGAGGGGTGGGAGGGAGGAAGAATTTTTAAATGTAAAACATTCCCAAGTTTGGATCAGGGAGTTGGA 4081 AGTTTTCAGAATAACCAGAACTAAGGGTATGAAGGACCTGTATTGGGGTCGATGTGATGCCTCTGCGAAGAACCTTGTGT 4161 GACAAATGAGAAACATTTTGAAGTTTGTGGTACGACCTTTAGATTCCAGAGACATCAGCATGGCTCAAAGTGCAGCTCCG 4241 TTTGGCAGTGCAATGGTATAAATTTCAAGCTGGATATGTCTAATGGGTATTTAAACAATAAATGTGCAGTTTTAACTAAC 4321 AGGATATTTAATGACAACCTTCTGGTTGGTAGGGACATCTGTTTCTAAATGTTTATTATGTACAATACAGAAAAAAATTT 4401 TATAAAATTAAGCAATGTGAAACTGAATTGGAGAGTGATAATACAAGTCCTTTAGTCTTACCCAGTGAATCATTCTGTTC 4481 CATGTCTTTGGACAACCATGACCTTGGACAATCATGAAATATGCATCTCACTGGATGCAAAGAAAATCAGATGGAGCATG 4561 AATGGTACTGTACCGGTTCATCTGGACTGCCCCAGAAAAATAACTTCAAGCAAACATCCTATCAACAACAAGGTTGTTCT 4641 GCATACCAAGCTGAGCACAGAAGATGGGAACACTGGTGGAGGATGGAAAGGCTCGCTCAATCAAGAAAATTCTGAGACTA 4721 TTAATAAATAAGACTGTAGTGTAGATACTGAGTAAATCCATGCACCTAAACCTTTTGGAAAATCTGCCGTGGGCCCTCCA 4801 GATAGCTCATTTCATTAAGTTTTTCCCTCCAAGGTAGAATTTGCAAGAGTGACAGTGGATTGCATTTCTTTTGGGGAAGC 4881 TTTCTTTTGGTGGTTTTGTTTATTATACCTTCTTAAGTTTTCAACCAAGGTTTGCTTTTGTTTTGAGTTACTGGGGTTAT 4961 TTTTGTTTTAAATAAAAATAAGTGTACAATAAGTGTTTTTGTATTGAAAGCTTTTGTTATCAAGATTTTCATACTTTTAC 5041 CTTCCATGGCTCTTTTTAAGATTGATACTTTTAAGAGGTGGCTGATATTCTGCAACACTGTACACATAAAAAATACGGTA 5121 AGGATACTTTACATGGTTAAGGTAAAGTAAGTCTCCAGTTGGCCACCATTAGCTATAATGGCACTTTGTTTGTGTTGTTG 5201 GAAAAAGTCACATTGCCATTAAACTTTCCTTGTCTGTCTAGTTAATATTGTGAAGAAAAATAAAGTACAGTGTGAGATAC 5281 TG Target sites Provided by authors Predicted by miRanda |
||||||||||||||||||||
| miRNA-target interactions (Predicted by miRanda) |
|
| miRNA:Target | hsa-miR-15b :: BCL2 [ Functional MTI ] |
|---|---|
| Validation Method | Luciferase reporter assay , qRT-PCR , Western blot |
| Conditions | SGC7901/VCR, |
| Location of target site | 3'UTR, unknown |
| Tools used in this research | TargetScan, |
| Original Description (Extracted from the article) | ... As expected, this suppression was abolished by deleting part of the perfectly complementary sequences in the BCL2 3`-UTR (pGL3-mutBcl2-30UTR) which disrupts the interaction between miR-15b/miR-16 and BCL2 (Fig. 3d). Taken together, these results demonstrate that miR-15b and miR-16 directly inhibit BCL2 expression at posttranscriptional level through its 3`UTR. ... - Xia, L. Zhang, D. Du, R. Pan, Y. Zhao, L. et al., 2008, Int J Cancer. |
| Article |
- Xia, L.
Zhang, D.
Du, R.
Pan, Y.
Zhao, L. et al. - Int J Cancer, 2008
microRNAs are endogenous small noncoding RNAs that regulate gene expression negatively at posttranscriptional level. This latest addition to the complex gene regulatory circuitry revolutionizes our way to understanding physiological and pathological processes in the human body. Here we investigated the possible role of microRNAs in the development of multidrug resistance (MDR) in gastric cancer cells. microRNA expression profiling revealed a limited set of microRNAs with altered expression in multidrug- resistant gastric cancer cell line SGC7901/VCR compared to its parental SGC7901 cell line. Among the downregulated microRNAs are miR-15b and miR-16, members of miR-15/16 family, whose expression was further validated by qRT-PCR. In vitro drug sensitivity assay demonstrated that overexpression of miR-15b or miR-16 sensitized SGC7901/VCR cells to anticancer drugs whereas inhibition of them using antisense oligonucleotides conferred SGC7901 cells MDR. The downregulation of miR-15b and miR-16 in SGC7901/VCR cells was concurrent with the upregulation of Bcl-2 protein. Enforced mir-15b or miR-16 expression reduced Bcl-2 protein level and the luciferase activity of a BCL2 3' untranslated region-based reporter construct in SGC7901/VCR cells, suggesting that BCL2 is a direct target of miR-15b and miR-16. Moreover, overexpression of miR-15b or miR-16 could sensitize SGC7901/VCR cells to VCR-induced apoptosis. Taken together, our findings suggest that miR-15b and miR-16 could play a role in the development of MDR in gastric cancer cells at least in part by modulation of apoptosis via targeting BCL2.
LinkOut: [PMID: 18449891]
|