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RBMXL3 drives transcriptome changes in human TCam-2 cells (RNA-seq data)

ABSTRACT: RBMXL3 is a primate-specific gene localized on the X chromosome, which expression is detectable mainly in the male gonad. So far, very little is known about RBMXL3 protein function and its molecular network but recent reports mention the RBMXL3 gene in the context of human spermatogenesis, cancer, and also a breathing disorder that affects newborns. In this study, we investigate the RBMXL3’s molecular network on a genome-wide scale using the human seminoma cell line (TCam-2) as a male germline in vitro model. Our transcriptomic (RNAseq, eCLIP) and proteomic (Co-IP coupled with MS) data show that RBMXL3 is an important player involved in RNA metabolism in human cells. Moreover, we report for the first time that primate-specific RBMXL3 protein restricts human LINE-1 (L1) retrotransposition. Our data indicate that RBMXL3 could play a decent function in controlling transcriptome fate in germ cells and beyond.

ORGANISM(S): Homo sapiens

PROVIDER: GSE294696 | GEO | 2026/04/03

REPOSITORIES: GEO

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Project description:Background: Germ Cell Cancers (GCC), originating from Primordial Germ Cells /gonocytes, are the most common cancer in young men, subdivided in seminoma (SE) and non-seminoma (NS, stem cell component: embryonal carcinoma (EC)). Somatic mutations are rarely found in GCC. It has been proposed that disruption of the epigenetic constitution, either primarily or secondary (e.g. environmental influences), is involved in cancer, and specifically in GCC. Results: This study aims at identifying epigenetic footprints of SE and EC cell lines in genome-wide profiles by studying the interaction between gene expression, DNA CpG methylation and histone modifications, and their function in GCC and related disruption of germ cell maturation. Two well characterized GCC-derived cell lines were compared, one representative for SE (TCam-2) and the other for EC (NCCIT). Data was acquired using the Illumina HumanHT-12-v4 (gene expression) and HumanMethylation450 BeadChip (methylation) microarrays as well as ChIP sequencing (activating histone modifications (H3K4me3, H3K27ac)). The data show that known germ cell markers are not only present and differentiating between SE and NS at the expression level, but also in the epigenetic landscape. Conclusion: The overall similarity between TCam-2 / NCCIT supports an erased embryonic gem cell arrested in early gonadal development as common origin. Subtle difference in the (integrated) epigenetic and expression profiles indicated TCam-2 to exhibit a more germ cell like profile (enrichment Androgen regulation) while NCCIT proved more pluripotent. The results provide insight into an integrated analysis of the functional genome in GCC cell lines. Two wildtype germ cell cancer (type II germ cell tumor) cell lines were analyzed. TCam-2 (representative for the seminomatous subtype of germ cell cancer) , [1, 2]) and NCCIT (representative of the non-seminomatous (embryonal carcinoma) subtype of germ cell cancer, [3]). 1. Mizuno, Y., et al., [Establishment and characterization of a new human testicular germ cell tumor cell line (TCam-2)]. Nihon Hinyokika Gakkai Zasshi, 1993. 84(7): p. 1211-8. 2. de Jong, J., et al., Further characterization of the first seminoma cell line TCam-2. Genes Chromosomes Cancer, 2008. 47(3): p. 185-96. 3. Teshima, S., et al., Four new human germ cell tumor cell lines. Lab Invest, 1988. 59(3): p. 328-36.

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RBMXL3 drives transcriptome changes in human TCam-2 cells (RNA-seq data)

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