Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA138087 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:To metastasize, a tumor cell must acquire abilities such as the capacity to colonize new tissue and evade immune surveillance. Recent evidence suggests that microRNAs can promote the evolution of malignant behaviors by regulating multiple targets simultaneously. We performed a microRNA analysis of human melanoma, an aggressively invasive cancer, and found that miR-30b/30d upregulation correlates with stage, metastatic potential of primary tumors, shorter time to recurrence and reduced overall survival. Ectopic expression of miR-30b/30d promoted the metastatic behavior of melanoma cells by directly targeting the GalNAc transferase GALNT7, resulted in increased synthesis of the immunosuppressive cytokine IL-10, and reduced immune cell activation and recruitment. These data point to a key role of miR-30b/30d and GalNAc transferases in metastasis, by simultaneously promoting cellular invasion and immune suppression. MicroRNAs are emerging as key contributors to tumor metastasis because of their ability to regulate multiple targets, and thereby alter several functions, simultaneously. We found a miRNA cluster that promotes metastasis by concurrently enhancing invasive capabilities of melanoma cells and suppressing immune surveillance mechanisms, allowing the tumor cells to migrate and invade foreign tissue. Both these effects of miR-30b/30d are mediated by direct suppression of GalNAc transferases. Aberrant glycosylation has previously been connected to tumor progression, but the underlying molecular mechanisms and their impact on specific cellular pathways are poorly understood. Our work places the control of glycosylation as a novel molecular link between tumor cell migration and immune evasion, two processes that act synergistically during metastasis. 2 different melanoma cell line, 2 biological duplicates for each cell line Differentially expressed genes (mRNAs) in response to miRNA over-expression
2011-03-08 | E-GEOD-27718 | biostudies-arrayexpress
Project description:To metastasize, a tumor cell must acquire abilities such as the capacity to colonize new tissue and evade immune surveillance. Recent evidence suggests that microRNAs can promote the evolution of malignant behaviors by regulating multiple targets simultaneously. We performed a microRNA analysis of human melanoma, an aggressively invasive cancer, and found that miR-30b/30d upregulation correlates with stage, metastatic potential of primary tumors, shorter time to recurrence and reduced overall survival. Ectopic expression of miR-30b/30d promoted the metastatic behavior of melanoma cells by directly targeting the GalNAc transferase GALNT7, resulted in increased synthesis of the immunosuppressive cytokine IL-10, and reduced immune cell activation and recruitment. These data point to a key role of miR-30b/30d and GalNAc transferases in metastasis, by simultaneously promoting cellular invasion and immune suppression. MicroRNAs are emerging as key contributors to tumor metastasis because of their ability to regulate multiple targets, and thereby alter several functions, simultaneously. We found a miRNA cluster that promotes metastasis by concurrently enhancing invasive capabilities of melanoma cells and suppressing immune surveillance mechanisms, allowing the tumor cells to migrate and invade foreign tissue. Both these effects of miR-30b/30d are mediated by direct suppression of GalNAc transferases. Aberrant glycosylation has previously been connected to tumor progression, but the underlying molecular mechanisms and their impact on specific cellular pathways are poorly understood. Our work places the control of glycosylation as a novel molecular link between tumor cell migration and immune evasion, two processes that act synergistically during metastasis.
2011-03-08 | GSE27718 | GEO
Project description:Sus scrofa ssc-mir-30d, ssc-mir-30d [Source:miRBase;Acc:MI0013091], is expressed in 1 baseline experiment(s);
| ENSSSCG00000018757 | ExpressionAtlas
Project description:Ovis aries oar-mir-30d, oar-mir-30d [Source:miRBase;Acc:MI0025280], is expressed in 1 baseline experiment(s);
| ENSOARG00000022041 | ExpressionAtlas
Project description:Monodelphis domestica mdo-mir-30d, mdo-mir-30d [Source:miRBase;Acc:MI0023834], is expressed in 2 baseline experiment(s);
| ENSMODG00000025918 | ExpressionAtlas
Project description:Immunosuppression plays a crucial role in the development of cancer which remains a major cause of mortality in kidney transplant recipients. Cancer Exosomes (Exos) are extracellular vesicles described as modulators of tumor invasion and metastasis. This paper describes the effect of RAPA and CsA, two immunosuppressive drugs with different oncogenic proprieties, in Exos of colorectal cancer (CRC) cell lines. RAPA induces an increased Exos production and an overexpression of miR-6127, miR-6746-5p, and miR-6787-5p in Exos from a metastatic cell line. These miRNAs produce a significant down-regulation of epigenetic genes involved in cell cycle, chromatin and DNA regulation pre-metastatic niche. Our results describe a potential mechanism by RAPA in modulating pre-metastatic niche in post-transplant metastatic CRC through these exosomal miRNAs.
2019-08-20 | GSE123708 | GEO
Project description:Immunosuppression plays a crucial role in the development of cancer which remains a major cause of mortality in kidney transplant recipients. Cancer Exosomes (Exos) are extracellular vesicles described as modulators of tumor invasion and metastasis. This paper describes the effect of RAPA and CsA, two immunosuppressive drugs with different oncogenic proprieties, in Exos of colorectal cancer (CRC) cell lines. RAPA induces an increased Exos production and an overexpression of miR-6127, miR-6746-5p, and miR-6787-5p in Exos from a metastatic cell line. These miRNAs produce a significant down-regulation of epigenetic genes involved in cell cycle, chromatin and DNA regulation pre-metastatic niche. Our results describe a potential mechanism by RAPA in modulating pre-metastatic niche in post-transplant metastatic CRC through these exosomal miRNAs.
2019-08-20 | GSE123709 | GEO
Project description:miRNAs are related with the initiation and development of prostate cancer. We discover the miR-195 and miR-30 can be as a biomarker of prognosis of prostate cancer in clinical patients. miRNA functions through affecting the mRNA degradation by binding the mRNA 3’UTR. So we test the change of transcriptional profile of miR-195 and miR-30d cell line respectively to further study the function of miR-195 and miR-30d. To study the function of miR-195 and miR-30d in prostate cancer, we setup the over-expression cell line of the miR-195 and miR-30d respectively in prostate cancer cell(LNCap and DU145), then study the change of transcriptional profile in cell line by microarray experiment (Affymetrix PrimeView human gene expression).
2016-08-23 | GSE85884 | GEO
Project description:miRNAs are related with the initiation and development of prostate cancer. We discover the miR-195 and miR-30 can be as a biomarker of prognosis of prostate cancer in clinical patients. miRNA functions through affecting the mRNA degradation by binding the mRNA 3âUTR. So we test the change of transcriptional profile of miR-195 and miR-30d cell line respectively to further study the function of miR-195 and miR-30d. To study the function of miR-195 and miR-30d in prostate cancer, we setup the over-expression cell line of the miR-195 and miR-30d respectively in prostate cancer cell(LNCap and DU145), then study the change of transcriptional profile in cell line by microarray experiment (Affymetrix PrimeView human gene expression). We order the over-expression plasmid of vector, miR-195 and miR-30d from System Biosciences company (Cat No: Scramble Vector PMIRH000PA-1 as Control, miR-195 PMIRH195PA-1, miR-30d PMIRH30dPA-1), and packaged the virus and construct the stable cell line (LNCaP_Control, LNCaP_mir195, LNCaP_mir30d,DU145_Control, DU145_mir195, DU145_mir30d,). We test the transcriptional profile in cell line by microarray experiment (Affymetrix PrimeView human gene expression).
2016-08-23 | E-GEOD-85884 | biostudies-arrayexpress
Project description:JAG1 is an Invasion and Metastasis promoting genes of Lung cancer
2025-01-24 | E-GEOD-14995 | ExpressionAtlas