Dataset Information

New Insights into Development of Female Reproductive Tract-Hedgehog-Signal Response in Wolffian Tissues Directly Contributes to Uterus Development.

ABSTRACT: The reproductive tract in mammals emerges from two ductal systems during embryogenesis: Wolffian ducts (WDs) and Mullerian ducts (MDs). Most of the female reproductive tract (FRT) including the oviducts, uterine horn and cervix, originate from MDs. It is widely accepted that the formation of MDs depends on the preformed WDs within the urogenital primordia. Here, we found that the WD mesenchyme under the regulation of Hedgehog (Hh) signaling is closely related to the developmental processes of the FRT during embryonic and postnatal periods. Deficiency of Sonic hedgehog (Shh), the only Hh ligand expressed exclusively in WDs, prevents the MD mesenchyme from affecting uterine growth along the radial axis. The in vivo cell tracking approach revealed that after WD regression, distinct cells responding to WD-derived Hh signal continue to exist in the developing FRT and gradually contribute to the formation of various tissues such as smooth muscle, endometrial stroma and vascular vessel, in the mouse uterus. Our study thus provides a novel developmental mechanism of FRT relying on WD.

SUBMITTER: Haraguchi R

PROVIDER: S-EPMC7865753 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature

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New Insights into Development of Female Reproductive Tract-Hedgehog-Signal Response in Wolffian Tissues Directly Contributes to Uterus Development.

Haraguchi Ryuma R Yamada Gen G Murashima Aki A Matsumaru Daisuke D Kitazawa Riko R Kitazawa Sohei S

International journal of molecular sciences 20210126 3

The reproductive tract in mammals emerges from two ductal systems during embryogenesis: Wolffian ducts (WDs) and Mullerian ducts (MDs). Most of the female reproductive tract (FRT) including the oviducts, uterine horn and cervix, originate from MDs. It is widely accepted that the formation of MDs depends on the preformed WDs within the urogenital primordia. Here, we found that the WD mesenchyme under the regulation of Hedgehog (Hh) signaling is closely related to the developmental processes of th ...[more]

PMID: 33530552

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Project description:Introduction and objectives: Proper In utero Wolffian duct (WD) development requires androgens and is essential to epididymis formation and male fertility. However, non-hormonal factors that control WD homeostasis and development remain largely unknown. In this study, we investigated the contribution of Hedgehog signaling pathway to Wolffian duct development by combining pharmacological approaches on organotypic cultures of WD with microarray profiling. Methods: WD were collected from embryos isolated from 16.5 days post-coitum pregnant mice and cultured in air-liquid condition at 37oC during 72 hours in the presence of either: 1) Cyclopamine (25 µM): Hh inhibitor; 2) Smoothened agonist (0.5 µM ; SAG): Hh activator; 3) Culture media (control). WD pictures were taken and analyzed on ImageJ. At the end of the culture, WD were snap-frozen to perform transcriptomic microarray analyses. Three to four biological replicates per condition, i.e. control (n=3), SAG (n=4) and cyclopamine (n=3), were used for microarray analyses. The quality of the RNA was determined using an Agilent BioAnalyzer (Agilent Technologies, Santa Clara, CA, USA) and displayed a RIN ranging from 9.10 to 9.60 out of 10 for the different samples. Microarray analyses were carried out on Affymetrix Mouse Clariom S arrays (Thermofisher) according to the Affymetrix standard protocol. In brief, 100 ng total RNA samples were labeled using the GeneChip® WT Plus Reagent Kit protocol and hybridized to the arrays as described by the manufacturer (Affymetrix, Thermofisher). The cRNA hybridization cocktail was incubated overnight at 45°C while rotating in a hybridization oven. After a 16-h hybridization period, the cocktail was removed and the arrays were washed and stained in an Affymetrix GeneChip fluidics station 450, according to the Affymetrix-recommended protocol. The arrays were scanned using the Affymetrix GCS 3000 7G and Gene-Chip Command Console Software (AGCC) (Affymetrix, Thermofisher) to produce the probe cell intensity data (CEL). The imaged data were then analyzed using the Affymetrix Expression Console Software to perform the quality control, background subtraction and normalization of probe set intensities using Robust Multiarray Analysis (RMA). Microarray processing was performed by the Gene Expression Core facility of the Genomic platform of the Centre Hospitalier Universitaire de Quebec Research Center. The microarray CEL files were imported and analyzed with Transcriptome Analysis Console (TAC) Software 4.0.2 (Applied Biosystems), and submitted to RMA normalization. Samples were included within three different treatment groups (control, SAG and cyclopamine) and compared by Analysis of Variance. Principal Component Analysis and heat maps were performed with Partek Pathway (Partek Incorporated). Biological pathways analyses were performed by using 5 distinct algorithms (i.e. DAVID, STRING, GOrilla, Metascape, GSEA and BLAST2GO). Conclusion: The data made available on GEO repository provide new insights regarding the mechanisms that control epididymis morphogenesis and male fertility. Financially supported by a CIHR grant to CB.

Dataset Information

New Insights into Development of Female Reproductive Tract-Hedgehog-Signal Response in Wolffian Tissues Directly Contributes to Uterus Development.

Publications

New Insights into Development of Female Reproductive Tract-Hedgehog-Signal Response in Wolffian Tissues Directly Contributes to Uterus Development.

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