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... Melatonin mediates several processes in animal reproduction and has drawn attention for its potent antioxidant, anti-apoptotic, anti-inflammatory action and, more recently, for its benefits on oocyte maturation and embryo development in vitro. The aim of this study was to assess the effect of melatonin during the in vitro maturation (IVM) on nuclear maturation of bovine oocytes and gene expression ...
... Our goal is to reveal how mammalian cells resolve their fate, shape, and position in the body in real time. Understanding how these decisions are made is critical to realise how embryos form and what problems compromise human fertility. Yet, their real-time control in vivo remains unknown. Because fixed specimens cannot capture cell dynamics, we established imaging technologies to study cells dire ...
... Somatic cell nuclear transfer (SCNT) is an important biotechnological tool. However, production rates of viable offspring remain low. One possible cause of this low efficiency is chromosomal losses during early activation process (Liu et al. 2015 Cell. Reprogram. 17, 463–471). The use of actin inhibitors that block second polar body extrusion during activation protocols might be a strategy to avoi ...
... A micropillar/microwell chip platform was applied to develop a 3D cell-based high-content screening (HCS) platform. Previously, 3D cell culture in the micropillar/microwell chip platform was only limited to cell viability measurements in a high-throughput manner. However, an HCS system could provide biological and phenotypic information which was very useful to understand complex biological functi ...
... A wide variety of research on watermelon has been conducted, and such studies have been motivated by the published genome sequence database of watermelon. Screening of proper reference genes is the primary step for normalization in gene expression analysis. Based on previous studies conducted on Arabidopsis and cucumber, we selected eight candidate reference genes of ClACT, ClEF1α, ClGAPDH, ClIDH, ...
... The process of pollen germination is crucial for flowering plant reproduction, but the mechanisms through which pollen grains establish polarity and select germination sites are not well understood. In this study, we report that a formin family protein, AtFH5, is localized to the vesicles and rotates ahead of Lifeact-mEGFP-labeled actin filaments during pollen germination. The translocation of AtF ...
... The specific cell architecture of prorocentroid dinoflagellates is reflected in the internal cell structure, particularly, in cytoskeleton organization. Cytoskeleton arrangement in a Prorocentrum minimum cell was investigated using fluorescent labeling approaches, electron‐microscopy and immunocytochemical methods. The absence of cortical microtubules was confirmed. Phalloidin – tetramethylrhodami ...
... For the acquisition of the ability to fertilize the egg, mammalian spermatozoa should undergo a series of biochemical transformations in the female reproductive tract, collectively called capacitation. The capacitated sperm can undergo the acrosomal exocytosis process near or on the oocyte, which allows the spermatozoon to penetrate and fertilize it. One of the main processes in capacitation invol ...
... The actin cytoskeleton and Rho GTPase signaling to actin assembly are prime targets of bacterial and viral pathogens, simply because actin is involved in all motile and membrane remodeling processes, such as phagocytosis, macropinocytosis, endocytosis, exocytosis, vesicular trafficking and membrane fusion events, motility, and last but not least, autophagy. This article aims at providing an overvi ...
... During the opening and closing of stomata, guard cells undergo rapid and reversible changes in their volume and shape, which affects the adhesion of the plasma membrane (PM) to the cell wall (CW). The dynamics of actin filaments in guard cells are involved in stomatal movement by regulating structural changes and intracellular signaling. However, it is unclear whether actin dynamics regulate the a ...
... Actin is a multi-functional gene family that can be divided into muscle-type actins and non-muscle-type actins. In this study, 37 unigenes encoding actins were identified from RNA-Seq data of Pacific white shrimp, Litopenaeus vannamei. According to phylogenetic analysis, four and three cDNAs belong to cytoplasmic- and heart-type actins and were named LvActinCT and LvActinHT, respectively. 10 cDNAs ...
... Actin is one of the three major cytoskeletal components in eukaryotic cells. Myosin XI is an actin-based motor protein in plant cells. Organelles are attached to myosin XI and translocated along the actin filaments. This dynamic actin–myosin XI system plays a major role in subcellular organelle transport and cytoplasmic streaming. Previous studies have revealed that myosin-driven transport and the ...
... Differentiation of valve interstitial cells (VICs) into pro-calcific cells is one of the central events in calcific aortic valve (AoV) disease (CAVD). While the paracrine pathways and the responsivity of VICs to mechanical compliance of the surrounding environment are well characterized, the molecular programming related to variations in local stiffness, and its link to cytoskeleton dynamics, is l ...
... Microtubules (MTs) constitute a crucial part of the cytoskeleton and are essential for cell division and differentiation, cell motility, intracellular transport, and cell morphology. Precise regulation of MT assembly and dynamics is essential for the performance of these functions. Although much progress has been made in identifying and characterizing the cellular factors that regulate MT assembly ...
DNA damage; DNA repair; Hippophae rhamnoides; actin; apoptosis; bile ducts; dose response; fibrosis; gene expression regulation; genes; inflammation; liver; liver function; muscles; nutritive value; rats; signal transduction; small fruits; transforming growth factor beta
Abstract:
... Sea buckthorn (Hippophae rhamnoides L.) is a berry bearing multiple nutritional properties. In this study, 46 compounds were isolated from sea buckthorn berries. Preliminary data showed that the components, C13, C15, and C32, exhibited profound inhibitory effect on the activation of hepatic stellate cells (HSCs) induced by transforming growth factor-β (TGF-β) and decreased the levels of inflammato ...
acetone; actin; detection limit; lithium; muscles; myosin; phosphorylation; polyacrylamide gel electrophoresis; protein content; smooth muscle; sulfates; thiourea; trichloroacetic acid; urea
Abstract:
... Phosphorylation analysis by using phos‐tag technique has been reported to be suitable for highly sensitive quantification of smooth muscle myosin regulatory light chain (LC₂₀) phosphorylation. However, there is another factor that will affect the sensitivity of phosphorylation analysis, that is, protein extraction. Here, we optimized the conditions for total protein extraction out of trichloroacet ...
actin; adiponectin; bone density; ligands; osteoclasts; osteoporosis; resorption; signal transduction; transcription factor NF-kappa B
Abstract:
... Adiponectin (APN) has been shown to play a key role in regulating bone mineral density (BMD). Nevertheless, the effects of APN on receptor activator of NF-κB ligand (RANKL)-induced osteoclast formation and mechanism of regulation are not entirely clear. The study, therefore, aimed to evaluate the effect of APN on osteoclastogenesis. Our results showed that APN inhibits osteoclastogenesis and resor ...
... Molecular resources and transgenic studies in red algae are lagging behind those for green algae. The Agrobacterium-mediated gene-transfer method routinely used in plant transformation has not been fully utilised in the red algae, which, as an important source of phycocolloids, warrant more studies. In this regard, a stepwise methodology was developed for Agrobacterium-mediated transformation of t ...
... Hepatic encephalopathy (HE) is a complex neuropsychiatric syndrome. Paracetamol (APAP) causes, in high doses, a hepatic injury. Alogliptin (ALO), with its 100% oral bioavailability, may be able to reverse the acute hepatic injury and memory impairments.Forty rats were divided into four groups as follows; Normal Control Group, APAP intoxicated group, ALO and SIL groups. Behavioral tests (Morris wat ...
... During early pregnancy, uterine epithelial cells undergo major transformations in their cytoskeleton that make the endometrium receptive for conceptus attachment. Actin binding proteins (ABPs) such as cofilin, gelsolin, and vinculin are involved in regulating actin polymerization, severing or crosslinking actin to integrins. However, whether ABPs are involved in epithelial remodeling or embryo adh ...