Cyclic fertilin-derived peptide stimulates in vitro human embryo development.
Assisted reproductive technologies
cyclic fertilin-derived peptide
embryo hatching
human embryogenesis
trophectoderm quality
Journal
F&S science
ISSN: 2666-335X
Titre abrégé: F S Sci
Pays: United States
ID NLM: 101765857
Informations de publication
Date de publication:
02 2022
02 2022
Historique:
received:
05
10
2021
revised:
11
12
2021
accepted:
16
12
2021
entrez:
13
5
2022
pubmed:
14
5
2022
medline:
18
5
2022
Statut:
ppublish
Résumé
To study the cyclic fertilin peptide effects on preimplantation human embryogenesis. Cyclic fertilin peptide reproduces the structure of the binding site of the sperm Fertilin β (also named A Disintegrin and Metalloprotease 2: ADAM2) disintegrin domain. It binds to the oocyte membrane and increases sperm-oocyte fusion index in human and fertilization rate in mouse, providing healthy pups. It also improves human oocyte maturation and chromosome segregation in meiosis I and binds to human embryo blastomeres, suggesting that it has a membrane receptor. Thawed human embryos at the 3 to 4 cells stage were randomly included in a dose-response study with cyclic fertilin peptide. Inner cell mass (ICM), trophectoderm (TE), and total cell numbers were evaluated in top- and good-quality blastocysts. The study was performed in an academic hospital and research laboratory. Human embryos donated for research. This project was approved by the French "Agence de la Biomédecine." Immunofluorescence and tissue-specific gene expression analysis, using Clariom D microarrays, were performed to study its mechanism of action. Cyclic fertilin peptide improves blastocyst formation by almost 20%, the concentration of 1 μM being the lowest most efficient concentration. It significantly increases twice the TE cell number, without modifying the ICM. It increases the in vitro hatching rate from 14% to 45%. Cyclic fertilin peptide stimulates TE growth. In the ICM, it induces transcriptional activation of intracellular protein and vesicle-mediated transport. Cyclic fertilin peptide dramatically improves human embryo development potential. It could be used to supplement culture medium and improve the in vitro human embryo development. Starting supplementation immediately after fertilization, instead of day 2, could significantly upgrade assisted reproductive technology outcome.
Identifiants
pubmed: 35559995
pii: S2666-335X(21)00091-4
doi: 10.1016/j.xfss.2021.12.002
pii:
doi:
Substances chimiques
Disintegrins
0
Membrane Glycoproteins
0
Peptides, Cyclic
0
ADAM Proteins
EC 3.4.24.-
ADAM2 protein, human
EC 3.4.24.-
Fertilins
EC 3.4.24.-
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
49-63Informations de copyright
Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.