MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma
Multiple myeloma (MM), a malignancy of plasma cells mainly derived from the bone marrow, has remained incurable generally. LncRNA MALAT1 has been reported to be upregulated in the MM cells and knockdown of MALAT1 inhibited MM cell cycle progression and enhanced cell apoptosis. Online target predicti...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-01-01
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| Series: | Bioengineered |
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| Online Access: | http://dx.doi.org/10.1080/21655979.2021.1920325 |
| _version_ | 1798034142511759360 |
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| author | Hui Liu Zuofei Chi Hong Jin Wei Yang |
| author_facet | Hui Liu Zuofei Chi Hong Jin Wei Yang |
| author_sort | Hui Liu |
| collection | DOAJ |
| description | Multiple myeloma (MM), a malignancy of plasma cells mainly derived from the bone marrow, has remained incurable generally. LncRNA MALAT1 has been reported to be upregulated in the MM cells and knockdown of MALAT1 inhibited MM cell cycle progression and enhanced cell apoptosis. Online target prediction showed that two target sites for MALAT1 existed in miR-188-5p, which has been identified as a tumor suppressor in other types of cancers. However, the role of miR-188-5p in the MM and whether miR-188-5p mediates the MM tumor progression regulated by MALAT1 are still unknown. Herein, four main MM cell lines were adopted to investigate the effects of miR-188-5p on cell proliferation and apoptosis via transfection with miR-188-5p mimic/inhibitor and co-transfection with miR-188-5p inhibitor and MALAT1-shRNA plasmids. Xenograft tumor model was also established to study these effects in vivo. Overexpression of miR-188-5p inhibited cell viability, cell proliferation as well as tumor growth and arrested cell cycle at G1 to S transition, but miR-188-5p knockdown showed opposite effects on the MM cells in vitro and in vivo. Moreover, MALAT1 was shown to be inversely correlated with miR-188-5p expression through direct binding to miR-188-5p, and in turn, miR-188-5p could mediate the MM cell proliferation and apoptosis regulated by MALAT1. These findings indicate that miR-188-5p serves as a tumor suppressor in the progression of the MM and is directly involved in MM cell proliferation and apoptosis regulated by MALAT1, which may provide a potential therapeutic target or prognostic indictor for MM clinical treatment. |
| first_indexed | 2024-04-11T20:40:08Z |
| format | Article |
| id | doaj.art-c8f8bbbe2c7641a3b66154afda94f5a0 |
| institution | Directory Open Access Journal |
| issn | 2165-5979 2165-5987 |
| language | English |
| last_indexed | 2024-04-11T20:40:08Z |
| publishDate | 2021-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Bioengineered |
| spelling | doaj.art-c8f8bbbe2c7641a3b66154afda94f5a02022-12-22T04:04:14ZengTaylor & Francis GroupBioengineered2165-59792165-59872021-01-011211611162610.1080/21655979.2021.19203251920325MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myelomaHui Liu0Zuofei Chi1Hong Jin2Wei Yang3Shengjing Hospital of China Medical UniversityShengjing Hospital of China Medical UniversityCollege of Basic Medical Science, China Medical UniversityShengjing Hospital of China Medical UniversityMultiple myeloma (MM), a malignancy of plasma cells mainly derived from the bone marrow, has remained incurable generally. LncRNA MALAT1 has been reported to be upregulated in the MM cells and knockdown of MALAT1 inhibited MM cell cycle progression and enhanced cell apoptosis. Online target prediction showed that two target sites for MALAT1 existed in miR-188-5p, which has been identified as a tumor suppressor in other types of cancers. However, the role of miR-188-5p in the MM and whether miR-188-5p mediates the MM tumor progression regulated by MALAT1 are still unknown. Herein, four main MM cell lines were adopted to investigate the effects of miR-188-5p on cell proliferation and apoptosis via transfection with miR-188-5p mimic/inhibitor and co-transfection with miR-188-5p inhibitor and MALAT1-shRNA plasmids. Xenograft tumor model was also established to study these effects in vivo. Overexpression of miR-188-5p inhibited cell viability, cell proliferation as well as tumor growth and arrested cell cycle at G1 to S transition, but miR-188-5p knockdown showed opposite effects on the MM cells in vitro and in vivo. Moreover, MALAT1 was shown to be inversely correlated with miR-188-5p expression through direct binding to miR-188-5p, and in turn, miR-188-5p could mediate the MM cell proliferation and apoptosis regulated by MALAT1. These findings indicate that miR-188-5p serves as a tumor suppressor in the progression of the MM and is directly involved in MM cell proliferation and apoptosis regulated by MALAT1, which may provide a potential therapeutic target or prognostic indictor for MM clinical treatment.http://dx.doi.org/10.1080/21655979.2021.1920325multiple myelomalong non-coding rnascell cycleapoptosismicrornasmalat1 |
| spellingShingle | Hui Liu Zuofei Chi Hong Jin Wei Yang MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma Bioengineered multiple myeloma long non-coding rnas cell cycle apoptosis micrornas malat1 |
| title | MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma |
| title_full | MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma |
| title_fullStr | MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma |
| title_full_unstemmed | MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma |
| title_short | MicroRNA miR-188-5p as a mediator of long non-coding RNA MALAT1 regulates cell proliferation and apoptosis in multiple myeloma |
| title_sort | microrna mir 188 5p as a mediator of long non coding rna malat1 regulates cell proliferation and apoptosis in multiple myeloma |
| topic | multiple myeloma long non-coding rnas cell cycle apoptosis micrornas malat1 |
| url | http://dx.doi.org/10.1080/21655979.2021.1920325 |
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