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Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection
BACKGROUND: Successful achievement of early folliculogenesis is crucial for female reproductive function. The process is finely regulated by cell-cell interactions and by the coordinated expression of genes in both the oocyte and in granulosa cells. Despite many studies, little is known about the ce...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166951/ https://www.ncbi.nlm.nih.gov/pubmed/21851638 http://dx.doi.org/10.1186/1471-2164-12-417 |
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author | Bonnet, Agnes Bevilacqua, Claudia Benne, Francis Bodin, Loys Cotinot, Corinne Liaubet, Laurence Sancristobal, Magali Sarry, Julien Terenina, Elena Martin, Patrice Tosser-Klopp, Gwenola Mandon-Pepin, Beatrice |
author_facet | Bonnet, Agnes Bevilacqua, Claudia Benne, Francis Bodin, Loys Cotinot, Corinne Liaubet, Laurence Sancristobal, Magali Sarry, Julien Terenina, Elena Martin, Patrice Tosser-Klopp, Gwenola Mandon-Pepin, Beatrice |
author_sort | Bonnet, Agnes |
collection | PubMed |
description | BACKGROUND: Successful achievement of early folliculogenesis is crucial for female reproductive function. The process is finely regulated by cell-cell interactions and by the coordinated expression of genes in both the oocyte and in granulosa cells. Despite many studies, little is known about the cell-specific gene expression driving early folliculogenesis. The very small size of these follicles and the mixture of types of follicles within the developing ovary make the experimental study of isolated follicular components very difficult. The recently developed laser capture microdissection (LCM) technique coupled with microarray experiments is a promising way to address the molecular profile of pure cell populations. However, one main challenge was to preserve the RNA quality during the isolation of single cells or groups of cells and also to obtain sufficient amounts of RNA. Using a new LCM method, we describe here the separate expression profiles of oocytes and follicular cells during the first stages of sheep folliculogenesis. RESULTS: We developed a new tissue fixation protocol ensuring efficient single cell capture and RNA integrity during the microdissection procedure. Enrichment in specific cell types was controlled by qRT-PCR analysis of known genes: six oocyte-specific genes (SOHLH2, MAEL, MATER, VASA, GDF9, BMP15) and three granulosa cell-specific genes (KL, GATA4, AMH). A global gene expression profile for each follicular compartment during early developmental stages was identified here for the first time, using a bovine Affymetrix chip. Most notably, the granulosa cell dataset is unique to date. The comparison of oocyte vs. follicular cell transcriptomes revealed 1050 transcripts specific to the granulosa cell and 759 specific to the oocyte. Functional analyses allowed the characterization of the three main cellular events involved in early folliculogenesis and confirmed the relevance and potential of LCM-derived RNA. CONCLUSIONS: The ovary is a complex mixture of different cell types. Distinct cell populations need therefore to be analyzed for a better understanding of their potential interactions. LCM and microarray analysis allowed us to identify novel gene expression patterns in follicular cells at different stages and in oocyte populations. |
format | Online Article Text |
id | pubmed-3166951 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2011 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-31669512011-09-06 Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection Bonnet, Agnes Bevilacqua, Claudia Benne, Francis Bodin, Loys Cotinot, Corinne Liaubet, Laurence Sancristobal, Magali Sarry, Julien Terenina, Elena Martin, Patrice Tosser-Klopp, Gwenola Mandon-Pepin, Beatrice BMC Genomics Research Article BACKGROUND: Successful achievement of early folliculogenesis is crucial for female reproductive function. The process is finely regulated by cell-cell interactions and by the coordinated expression of genes in both the oocyte and in granulosa cells. Despite many studies, little is known about the cell-specific gene expression driving early folliculogenesis. The very small size of these follicles and the mixture of types of follicles within the developing ovary make the experimental study of isolated follicular components very difficult. The recently developed laser capture microdissection (LCM) technique coupled with microarray experiments is a promising way to address the molecular profile of pure cell populations. However, one main challenge was to preserve the RNA quality during the isolation of single cells or groups of cells and also to obtain sufficient amounts of RNA. Using a new LCM method, we describe here the separate expression profiles of oocytes and follicular cells during the first stages of sheep folliculogenesis. RESULTS: We developed a new tissue fixation protocol ensuring efficient single cell capture and RNA integrity during the microdissection procedure. Enrichment in specific cell types was controlled by qRT-PCR analysis of known genes: six oocyte-specific genes (SOHLH2, MAEL, MATER, VASA, GDF9, BMP15) and three granulosa cell-specific genes (KL, GATA4, AMH). A global gene expression profile for each follicular compartment during early developmental stages was identified here for the first time, using a bovine Affymetrix chip. Most notably, the granulosa cell dataset is unique to date. The comparison of oocyte vs. follicular cell transcriptomes revealed 1050 transcripts specific to the granulosa cell and 759 specific to the oocyte. Functional analyses allowed the characterization of the three main cellular events involved in early folliculogenesis and confirmed the relevance and potential of LCM-derived RNA. CONCLUSIONS: The ovary is a complex mixture of different cell types. Distinct cell populations need therefore to be analyzed for a better understanding of their potential interactions. LCM and microarray analysis allowed us to identify novel gene expression patterns in follicular cells at different stages and in oocyte populations. BioMed Central 2011-08-18 /pmc/articles/PMC3166951/ /pubmed/21851638 http://dx.doi.org/10.1186/1471-2164-12-417 Text en Copyright ©2011 Bonnet et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Bonnet, Agnes Bevilacqua, Claudia Benne, Francis Bodin, Loys Cotinot, Corinne Liaubet, Laurence Sancristobal, Magali Sarry, Julien Terenina, Elena Martin, Patrice Tosser-Klopp, Gwenola Mandon-Pepin, Beatrice Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title | Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title_full | Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title_fullStr | Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title_full_unstemmed | Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title_short | Transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by Laser Capture Microdissection |
title_sort | transcriptome profiling of sheep granulosa cells and oocytes during early follicular development obtained by laser capture microdissection |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3166951/ https://www.ncbi.nlm.nih.gov/pubmed/21851638 http://dx.doi.org/10.1186/1471-2164-12-417 |
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