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<title lang=en>An integrative omics strategy to assess the germ cell secretome and to decipher sertoli-germ cell crosstalk in the Mammalian testis</title>
<creator>Chalmel, Frédéric</creator>
<creator>Com, Emmanuelle</creator>
<creator>Lavigne, Régis</creator>
<creator>Hernio, Nolwen</creator>
<creator>Teixeira-Gomes, Ana-Paula</creator>
<creator>Dacheux, Jean-Louis</creator>
<creator>Pineau, Charles</creator>
<contributor>Institut de recherche, santé, environnement et travail [Rennes] (Irset) ; INSERM - École Nationale de la Santé Publique - Université de Rennes 1 (UR1) - Université des Antilles et de la Guyane (UAG) - Structure Fédérative de Recherche en Biologie-Santé de Rennes (Biosit) ; Université de Rennes 1 (UR1) - INSERM - CNRS - INSERM - CNRS</contributor>
<contributor>Plateforme Protéomique-Biogenouest (PPB) ; Institut de recherche, santé, environnement et travail [Rennes] (Irset) ; INSERM - École Nationale de la Santé Publique - Université de Rennes 1 (UR1) - Université des Antilles et de la Guyane (UAG) - Structure Fédérative de Recherche en Biologie-Santé de Rennes (Biosit) ; Université de Rennes 1 (UR1) - INSERM - CNRS - INSERM - CNRS - INSERM - École Nationale de la Santé Publique - Université de Rennes 1 (UR1) - Université des Antilles et de la Guyane (UAG) - Structure Fédérative de Recherche en Biologie-Santé de Rennes (Biosit) ; Université de Rennes 1 (UR1) - INSERM - CNRS - INSERM - CNRS - Proteomics Core Facility ; Biogenouest - Biogenouest</contributor>
<contributor>Physiologie de la reproduction et des comportements (PRC) ; CNRS - Institut national de la recherche agronomique (INRA) - Université François Rabelais - Tours</contributor>
<description>International audience</description>
<source>PLoS ONE</source>
<publisher>Public Library of Science</publisher>
<identifier>hal-01063901</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01063901</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01063901</source>
<source>PLoS ONE, Public Library of Science, 2014, 9 (8), pp.e104418. <10.1371/journal.pone.0104418></source>
<identifier>DOI : 10.1371/journal.pone.0104418</identifier>
<identifier>PUBMED : 25111155</identifier>
<language>en</language>
<subject>[SDV] Life Sciences</subject>
<type>Journal articles</type>
<description lang=en>Mammalian spermatogenesis, which takes place in complex testicular structures called seminiferous tubules, is a highly specialized process controlled by the integration of juxtacrine, paracrine and endocrine information. Within the seminiferous tubules, the germ cells and Sertoli cells are surrounded by testicular fluid (TF), which probably contains most of the secreted proteins involved in crosstalk between these cells. It has already been established that germ cells can modulate somatic Sertoli cell function through the secretion of diffusible factors. We studied the germ cell secretome, which was previously considered inaccessible, by analyzing the TF collected by microsurgery in an "integrative omics" strategy combining proteomics, transcriptomics, genomics and interactomics data. This approach identified a set of proteins preferentially secreted by Sertoli cells or germ cells. An interaction network analysis revealed complex, interlaced cell-cell dialog between the secretome and membranome of seminiferous cells, mediated via the TF. We then focused on germ cell-secreted candidate proteins, and we identified several potential interacting partners located on the surface of Sertoli cells. Two interactions, APOH/CDC42 and APP/NGFR, were validated in situ, in a proximity ligation assay (PLA). Our results provide new insight into the crosstalk between germ cells and Sertoli cells occurring during spermatogenesis. Our findings also demonstrate that this "integrative omics" strategy is powerful enough for data mining and highlighting meaningful cell-cell communication events between different types of cells in a complex tissue, via a biological fluid. This integrative strategy could be applied more widely, to gain access to secretomes that have proved difficult to study whilst avoiding the limitations of in vitro culture.</description>
<date>2014</date>
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