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The Stromal-Epithelial Dialogues in Health and Disease

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Immunology".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 3744

Special Issue Editor


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Guest Editor
IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, 31024 Toulouse, France
Interests: interactions between the stromal environment; fibroblasts; extracellular matrix; intestinal epithelium; regulation of the stem cells; 3D organoid model

Special Issue Information

Dear Colleagues,

As you know, epithelial tissues are the main interfaces between our inner body and the external world. Their renewal and integrity are crucial in order to preserve our body from damage generated by harmful substances and exposures. These highly specialized tissues are involved in diverse functions such as microbe protection, nutrients and water absorption, hormones and enzymes secretion, gas exchanges, etc. In order to assure their maintenance and multiple roles, epithelia are supported by the stroma that corresponds to the connective tissue whose main functions, in regard to the epithelia and aside from immunity, are mechanical (support) and metabolic (nutrition and various exchanges). The stroma is composed of a cellular compartment including fibroblasts, immune cells, vessels, nerves, and glial cells, and an acellular one, the extracellular matrix. In homeostasis, actors of both stromal compartments are active players in the regulation of the renewal, differentiation, integrity, and functions of epithelial tissues. Moreover, it is now well established that under pathological conditions (inflammation, metabolic disorders, and cancer), alteration of either the epithelial or the stromal tissue will immediately affect the other one.

This Special Issue focuses on the latest advances in understanding the stromal–epithelial dialogue involved in physiological and/or pathological contexts. We will address how it participates to cell fates, tissue architecture and remodeling, during the different steps of development, under homeostasis or disease status, and the cellular and molecular events involved.

Dr. Audrey Ferrand
Guest Editor

Manuscript Submission Information

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Keywords

  • epithelial tissues
  • epithelia
  • stroma
  • connective tissue
  • immunity
  • metabolic

Published Papers (1 paper)

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Review

12 pages, 1530 KiB  
Review
Recent Insights into Human Endometrial Peptidases in Blastocyst Implantation via Shedding of Microvesicles
by Masato Yoshihara, Shigehiko Mizutani, Yukio Kato, Kunio Matsumoto, Eita Mizutani, Hidesuke Mizutani, Hiroki Fujimoto, Satoko Osuka and Hiroaki Kajiyama
Int. J. Mol. Sci. 2021, 22(24), 13479; https://doi.org/10.3390/ijms222413479 - 15 Dec 2021
Cited by 6 | Viewed by 3221
Abstract
Blastocyst implantation involves multiple interactions with numerous molecules expressed in endometrial epithelial cells (EECs) during the implantation window; however, there is limited information regarding the molecular mechanism underlying the crosstalk. In blastocysts, fibronectin plays a major role in the adhesion of various types [...] Read more.
Blastocyst implantation involves multiple interactions with numerous molecules expressed in endometrial epithelial cells (EECs) during the implantation window; however, there is limited information regarding the molecular mechanism underlying the crosstalk. In blastocysts, fibronectin plays a major role in the adhesion of various types of cells by binding to extracellular matrix proteins via the Arg-Gly-Asp (RGD) motif. In EECs, RGD-recognizing integrins are important bridging receptors for fibronectin, whereas the non-RGD binding of fibronectin includes interactions with dipeptidyl peptidase IV (DPPIV)/cluster of differentiation (CD) 26. Fibronectin may also bind to aminopeptidase N (APN)/CD13, and in the endometrium, these peptidases are present in plasma membranes and lysosomal membranes. Blastocyst implantation is accompanied by lysosome exocytosis, which transports various peptidases and nutrients into the endometrial cavity to facilitate blastocyst implantation. Both DPPIV and APN are released into the uterine cavity via shedding of microvesicles (MVs) from EECs. Recently, extracellular vesicles derived from endometrial cells have been proposed to act on trophectoderm cells to promote implantation. MVs are also secreted from embryonal stem cells and may play an active role in implantation. Thus, crosstalk between the blastocyst and endometrium via extracellular vesicles is a new insight into the fundamental molecular basis of blastocyst implantation. Full article
(This article belongs to the Special Issue The Stromal-Epithelial Dialogues in Health and Disease)
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