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Related Experiment Video

Updated: Jul 11, 2026

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
11:44

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis

Published on: March 30, 2019

High-throughput microRNAome analysis in human germ cell tumours.

A J M Gillis1, H J Stoop, R Hersmus

  • 1Department of Pathology, Josephine Nefkens Institute, Erasmus MC-University Medical Center Rotterdam, Daniel den Hoed, Rotterdam, The Netherlands.

The Journal of Pathology
|September 26, 2007
PubMed
Summary

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MicroRNAs (miRNAs) are key regulators in germ cell tumour (GCT) development. This study confirms the role of the hsa-miR 371-373 cluster and reveals miRNA expression patterns linked to GCT maturation and differentiation.

Area of Science:

  • Developmental Biology
  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Testicular germ cell tumours (GCTs) are classified into Type II (seminomas and non-seminomas) and Type III (spermatocytic seminomas).
  • These GCTs originate from carcinoma in situ (CIS), which are malignant counterparts of primordial germ cells (PGCs).
  • Previous research implicated the hsa-miR 371-373 microRNA cluster in overcoming oncogenic stress-induced senescence, facilitating malignancy.

Purpose of the Study:

  • To conduct the first high-throughput screen of 156 microRNAs in Type II and III GCTs.
  • To confirm the role of the hsa-miR 371-373 cluster in GCT development.
  • To investigate the relationship between miRNA expression patterns, GCT maturation, and differentiation.

Main Methods:

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Last Updated: Jul 11, 2026

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis
11:44

Analysis of Combinatorial miRNA Treatments to Regulate Cell Cycle and Angiogenesis

Published on: March 30, 2019

High Throughput MicroRNA Profiling: Optimized Multiplex qRT-PCR at Nanoliter Scale on the Fluidigm Dynamic ArrayTM IFCs
07:27

High Throughput MicroRNA Profiling: Optimized Multiplex qRT-PCR at Nanoliter Scale on the Fluidigm Dynamic ArrayTM IFCs

Published on: August 3, 2011

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Depletion of Mouse Cells from Human Tumor Xenografts Significantly Improves Downstream Analysis of Target Cells

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  • Quantitative PCR-based high-throughput screening of 156 microRNAs in 69 GCT samples (in duplicate).
  • Data normalization for inter-sample analysis and technical replicate assessment.
  • Unsupervised cluster analysis to differentiate cell lines from in vivo samples and to group samples based on maturation status.

Main Results:

  • Technical replicates clustered together, confirming the previously identified role of the hsa-miR 371-373 cluster.
  • In vivo GCT samples, both normal and malignant, clustered based on maturation status, mirroring normal embryogenesis.
  • Normal testicular tissue and differentiated non-seminomas showed higher expression of discriminating miRNAs compared to seminomas and spermatocytic seminomas.

Conclusions:

  • MicroRNAs play a significant role in regulating the differentiation of stem cells within GCTs.
  • MiRNA expression patterns are closely linked to the maturation status of GCTs, reflecting developmental processes.
  • The findings support a model where miRNAs are crucial in controlling stem cell differentiation relevant to GCT pathogenesis.