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Open AccessArticle

Exploring the Molecular Crosstalk between Pancreatic Bud and Mesenchyme in Embryogenesis: Novel Signals Involved

1
Istituto di RicercheGenetiche G. Salvatore, Biogems.c.ar.l, ArianoIrpino, 83031 Avellino, Italy
2
Dipartimento di Biologia, Universita’ degliStudi di Napoli, Federico II, 80126 Napoli, Italy
3
IRCCS—Referral Cancer Center of Basilicata (CROB), 85028 Rionero in Vulture (PZ), Italy
4
Istituto di Biostrutture e Bioimmagini-CNR, Via De Amicis No. 95, 80145 Napoli, Italy
5
Department of Science and Technology, University of Sannio, 82100 Benevento, Italy
6
Istituto per l’Endocrinologia e l’OncologiaSperimentale “G. Salvatore”, CNR, 80131 Napoli, Italy
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Int. J. Mol. Sci. 2019, 20(19), 4900; https://doi.org/10.3390/ijms20194900
Received: 21 June 2019 / Revised: 23 September 2019 / Accepted: 27 September 2019 / Published: 3 October 2019
(This article belongs to the Special Issue Novel MSC Perspectives: From Cell Regulation to Tissue Regeneration)
Pancreatic organogenesis is a multistep process that requires the cooperation of several signaling pathways. In this context, the role of pancreatic mesenchyme is important to define the epithelium development; nevertheless, the precise space–temporal signaling activation still needs to be clarified. This study reports a dissection of the pancreatic embryogenesis, highlighting the molecular network surrounding the epithelium–mesenchyme interaction. To investigate this crosstalk, pancreatic epithelium and surrounding mesenchyme, at embryonic day 10.5, were collected through laser capture microdissection (LCM) and characterized based on their global gene expression. We performed a bioinformatic analysis to hypothesize crosstalk interactions, validating the most promising genes and verifying the precise localization of their expression in the compartments, by RNA in situ hybridization (ISH). Our analyses pointed out also the c-Met gene, a very well-known factor involved in stimulating motility, morphogenesis, and organ regeneration. We also highlighted the potential crosstalk between Versican (Vcan) and Syndecan4 (Sdc4) since these genes are involved in pancreatic tissue repair, strengthening the concept that the same signaling pathways required during pancreatic embryogenesis are also involved in tissue repair. This finding leads to novel strategies for obtaining functional pancreatic stem cells for cell replacement therapies. View Full-Text
Keywords: pancreatic stem cells; pancreatic disorders; embryonic stem cells; bud; progenitor cells; laser microdissection; mesenchymal stem cell pancreatic stem cells; pancreatic disorders; embryonic stem cells; bud; progenitor cells; laser microdissection; mesenchymal stem cell
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Guerriero, I.; De Angelis, M.T.; D’Angelo, F.; Leveque, R.; Savignano, E.; Roberto, L.; Lucci, V.; Mazzone, P.; Laurino, S.; Storto, G.; Nardelli, A.; Sgambato, A.; Ceccarelli, M.; De Felice, M.; Amendola, E.; Falco, G. Exploring the Molecular Crosstalk between Pancreatic Bud and Mesenchyme in Embryogenesis: Novel Signals Involved. Int. J. Mol. Sci. 2019, 20, 4900.

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