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Single-cell RNA sequencing on the testis from the rete testis-specific Sox17 conditioinal knockout (cKO) mice and the controls at P14.

ABSTRACT: In mammalian testes, a valve-like structure called Sertoli valve is located at the border region of the seminiferous tubule and the rete testis. Having identified Sox17 in the rete testis as a positive regulator of the valve formation, this study aim to elucidate the mechanism of Sox17-expressing rete testis to modulate the testicular homeostasis. Our scRNA-seq data demonstrate the altered gene expression levels of several growth factors in Sox17-depleted rate testis epithelia, and highlighted the altered proportion of Sertoli cells located around the proximal part of the testis. This study provides a comprehensive profile of the proximal part of the testis including the rete testis and Sertoli valve for the first time, and further illustrate the functional role of the Sox17+ rete tesits to orchestrate the testicular homeostasis.

ORGANISM(S): Mus musculus

PROVIDER: GSE190043 | GEO | 2022/11/27

REPOSITORIES: GEO

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Project description:Testicular germ cell tumours (TGCTs) of young adult men, seminoma (SEM) and nonseminoma (NSEM), develop from a precursor cell, carcinoma in situ (CIS), which resembles foetal gonocytes and retains embryonic pluripotency. We used microarrays to analyse microRNA (miRNA) expression in 12 human testis samples with CIS cells and compared it to the miRNA expression profiles of normal adult testis, testis with Sertoli-cell-only (SCO) that lack germ cells, testis tumours (SEM and embryonal carcinoma, EC; an undifferentiated component of NSEM) and foetal male and female gonads. Principal component analysis revealed distinct miRNA expression profiles characteristic for each of the different tissue types. We identified several miRNAs that were unique to testis with CIS cells, foetal gonads, and testis tumours. These included miRNAs from the hsa-miR-371~373 and -302~367 clusters that have previously been reported in germ cell tumours and three miRNAs (hsa-miR-96, -141 and -200c) that were also expressed in human epididymis. We found several miRNAs that were upregulated in testis tumours: hsa-miR-9, -105 and the hsa-miR-182~183~96 cluster were highly expressed in SEM, while the hsa-miR-515~526 cluster was high in EC. We conclude that miRNA expression profile changes during testis development and that the miRNA profile of adult testis with CIS cells shares characteristic similarities with the expression in foetal gonocytes. We used Agilent microarrays to determine the expression of microRNAs in samples from testis. We first used Agilent-016436 Human miRNA Microarray 1.0 G4472A (GPL9081; miRNA ID version) on 4 samples: normal testis, testis with 30% carcinoma in situ (CIS) tubules, testis with 50% CIS tubules and testis with 99-100% CIS tubules. This allowed us to determine the correlation between miRNA expressiona and the content of CIS cells in the samples. This is the file with data from those four arrays. Next, we used Agilent-019118 Human miRNA Microarray 2.0 G4470B (GPL8936; Probe Name version) on 24 samples that included normal testis, testis with the precursor for testis cancer carcinoma in situ (CIS), Sertoli-cell-only testis (contains the somatic testis cells but no germ cells), seminom and non-seminom tumours, and foetal gonads. This constitute the main part of the experiment and the publication, but the data was submitted to GEO in an independent file.

Dataset Information

Single-cell RNA sequencing on the testis from the rete testis-specific Sox17 conditioinal knockout (cKO) mice and the controls at P14.

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