Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Nunzia Limatola"'
Publikováno v:
Cells, Vol 13, Iss 17, p 1477 (2024)
Sea urchin eggs are covered with layers of extracellular matrix, namely, the vitelline layer (VL) and jelly coat (JC). It has been shown that sea urchin eggs’ JC components serve as chemoattractants or ligands for the receptor on the fertilizing sp
Externí odkaz:
https://doaj.org/article/57726352329643169a2ce3b9ea536315
Publikováno v:
Biomolecules, Vol 13, Iss 11, p 1659 (2023)
Immature starfish oocytes isolated from the ovary are susceptible to polyspermy due to the structural organization of the vitelline layer covering the oocyte plasma membrane, as well as the distribution and biochemical properties of the actin cytoske
Externí odkaz:
https://doaj.org/article/833a2152db574d2f8f9166bbdbf69680
Autor:
Nunzia Limatola, Jong Tai Chun, Suzanne C. Schneider, Jean-Louis Schmitt, Jean-Marie Lehn, Luigia Santella
Publikováno v:
Cells, Vol 12, Iss 5, p 740 (2023)
In starfish, the addition of the hormone 1-methyladenine (1-MA) to immature oocytes (germinal vesicle, GV-stage) arrested at the prophase of the first meiotic division induces meiosis resumption (maturation), which makes the mature eggs able to respo
Externí odkaz:
https://doaj.org/article/69028f4b012f4b9da3842e5d4be1c5f3
Publikováno v:
Zoological Letters, Vol 6, Iss 1, Pp 1-21 (2020)
Abstract Much of the scientific knowledge on oocyte maturation, fertilization, and embryonic development has come from the experiments using gametes of marine organisms that reproduce by external fertilization. In particular, echinoderm eggs have ena
Externí odkaz:
https://doaj.org/article/1287d86bb88643b3b46d1bd700dea1ad
Publikováno v:
Cells, Vol 11, Iss 19, p 2984 (2022)
In sea urchins, the sequence of the cellular and molecular events characterizing the fertilization process has been intensively studied. We have learned that to activate the egg, the fertilizing sperm must undergo morphological modifications (the acr
Externí odkaz:
https://doaj.org/article/bd2d5600ea0445e3b4512a0ad81380ee
Publikováno v:
Cells, Vol 11, Iss 9, p 1496 (2022)
In sea urchin, the immediate contact of the acrosome-reacted sperm with the egg surface triggers a series of structural and ionic changes in the egg cortex. Within one minute after sperm fuses with the egg plasma membrane, the cell membrane potential
Externí odkaz:
https://doaj.org/article/e647d77d115d404eba32fec4aec21cfc
Publikováno v:
Cellular Physiology and Biochemistry, Vol 48, Iss 5, Pp 2011-2034 (2018)
Background/Aims: Eggs of all animal species display intense cytoplasmic Ca2+ increases at fertilization. Previously, we reported that unfertilized eggs of Astropecten aranciacus exposed to an actin drug latrunculin A (LAT-A) exhibit similar Ca2+ wave
Externí odkaz:
https://doaj.org/article/8e8ea119680c4341ae00905fbda6021d
Autor:
Nunzia Limatola, Jong Tai Chun, Sawsen Cherraben, Jean-Louis Schmitt, Jean-Marie Lehn, Luigia Santella
Publikováno v:
Cells, Vol 10, Iss 12, p 3573 (2021)
The vitelline layer (VL) of a sea urchin egg is an intricate meshwork of glycoproteins that intimately ensheathes the plasma membrane. During fertilization, the VL plays important roles. Firstly, the receptors for sperm reside on the VL. Secondly, fo
Externí odkaz:
https://doaj.org/article/24faba7db4dd49a3bb94b4418968ddd8
Publikováno v:
Cells, Vol 9, Iss 1, p 63 (2019)
While alkaloids often exert unique pharmacological effects on animal cells, exposure of sea urchin eggs to nicotine causes polyspermy at fertilization in a dose-dependent manner. Here, we studied molecular mechanisms underlying the phenomenon. Althou
Externí odkaz:
https://doaj.org/article/670508998aca4a1a860f8860f0f9f8f8
Publikováno v:
Cells; Volume 11; Issue 9; Pages: 1496
In sea urchin, the immediate contact of the acrosome-reacted sperm with the egg surface triggers a series of structural and ionic changes in the egg cortex. Within one minute after sperm fuses with the egg plasma membrane, the cell membrane potential