Yang Wang¹, Shuang Ge¹, Junyang Huang¹, Ruolin Du¹, Tieying Yin¹, Guixue Wang^1,*, Yazhou Wang^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 140-141, 2019, DOI:10.32604/mcb.2019.07300

Abstract Zonula occludens-1 (ZO-1) is a peripheral membrane protein belongs to the family of zona occludens proteins and plays an important role as a scaffold protein which cross-links and anchors tight junction (TJ) strand proteins, within the lipid bilayer, to the actin cytoskeleton^[1-2]. Stent implantation is the most effective method in the treatment of cardiovascular disease which always destroy junctions of endothelial cells, the functions of the tight junction were also affected. However, the role of ZO-1 before and after stent implantation has not been fully understood. In this study, the expression of ZO-1 were analyzed by qPCR, western blot and… More >

Junyang Huang¹, Shuang Ge¹, Yang Wang¹, Ruolin Du¹, Yazhou Wang¹, Tieying Yin¹, Guixue Wang^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 138-139, 2019, DOI:10.32604/mcb.2019.07305

Abstract Tight junctions are the most apical intercellular junctions of the lateral membrane in endothelial cells, regulating the paracellular material and energy exchange and maintain plasma membrane polarity. Occludin protein is one of the important proteins involved in endothelial tight junctions, and also closely related to the occurrence of atherosclerosis. Therefore, the study of occludin is valuable ^[1]. With the implantation of coronary stents, the integrity of the vascular endothelium is damaged and the local mechanical environment at the stent segment was changed ^[2]. The present study tried to explore the impact of mechanical stimulation after stent implantation on the expression… More >

Chenyi An¹, Wei Chen^2,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 109-110, 2019, DOI:10.32604/mcb.2019.07634

Abstract Biomembrane force probe (BFP) is a single-molecule biomechanical technique that has been widely used to characterize protein dynamics (e.g., protein-protein interactions and protein conformational changes), especially suitable for measuring force-regulated receptor-ligand binding kinetics in situ[1-4]. Integrated with various force spectroscopies, such as lifetime assay, it has become a powerful platform to systematically characterize many force-regulated receptor-ligand dissociation of great biological significance, which cannot be done with traditional solution based assays (e.g., surface plasma resonance) [5].
Even though the BFP has been quite successful in characterizing binding kinetics of weak and transient molecular interactions, it is still incapable of stably… More >

Jiachen Wei^1,2,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 103-104, 2019, DOI:10.32604/mcb.2019.07721

Abstract Phoretic flow can be generated by different types of gradient (e.g. temperature, concentration, or charge gradient) [1-3]. Within micro-to-nano confined system, the diffusio-phoretic property for proteins differs dramatically from that obtained in bulk condition, due to concentration fluctuation that emerges at microscopic level induced by specific and nonspecific interactions between protein and co-solute [4-5]. The phoretic mobility of protein individuals and complex in solute gradients can be theoretically described by continuum model [1-2] that neglects microscopic heterogeneity and determined experimentally by microfluidics [6], but the underlying mechanism of diffusio-phoretic motion for confined protein still remains unclear.
Our approach to… More >

Long Li¹, Jinglei Hu², Fan Song^1,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 54-55, 2019, DOI:10.32604/mcb.2019.07718

Abstract Cell adhesion is a fundamental biological process involved in many crucial cellular activities such as tissue formation, immune response, and cell locomotion [1, 2]. The adhesion process is mediated by the specific binding of membrane-anchored receptor and ligand proteins, which is quantified by the two-dimensional binding equilibrium constant [3-5]. These adhesion proteins are associated with cell membranes either via transmembrane domains or via GPI anchors, and may very likely generate membrane curvature, which has been shown for a number of membrane proteins to play an important role in organelle shaping, vesicle trafficking, cell fusion and division as well as protein… More >

Na Liu¹, Xiaoyun Zhang², Yuzhen Ding², Hong Li², Xiumei Guan², Min Cheng^2,*, Xiaodong Cui^2,*

Molecular & Cellular Biomechanics, Vol.16, Suppl.1, pp. 87-87, 2019, DOI:10.32604/mcb.2019.05751

Abstract Objective: Endothelial progenitor cells (EPCs) play a vital role in postnatal vascular injury and repair, especially vasculogenesis and angiogenesis. The purpose of this study was to investigate the effect of laminar shear stress in attenuating the decreased-expression of complement regulatory protein CD59 and the mechanism of cytoskeleton F-actin. Methods: EPCs were isolated from human umbilical vein blood and planted on glass slides, which applied to the laminar shear stress force (12 dyne/cm2) in a high glucose (20 mM) culture environment. The gene and protein expression of CD59 were detected by SYBGreen quantitative PCR and fluorescence activated cell sorter (FACS) respectively.… More >

Yanhong ZHEN¹, Li HAN², Kailai CAI¹, Lijun HUO¹, Hasan RIAZ¹, Canjie WU¹, Aixin LIANG¹ , Lei SANG¹, Liguo YANG^{1 *}

BIOCELL, Vol.38, No.1, pp. 17-24, 2014, DOI:10.32604/biocell.2014.38.017

Abstract Inhibins play important roles in the reproductive system. To evaluate whether inhibin α (1-32) fusion protein plays a role in cervical cancer growth, the plasmid pVAX-inhα was constructed and its effect on proliferation and apoptosis of the human cervical cancer cell line (Hela) was checked by flow cytometry and real-time PCR. The expression and localization of inhibin α protein were detected by RT-PCR and confocal microscopy which showed that inhibin α protein was expressed and localized in the nucleus of Hela cells. Over expression of inhibin α gene significantly induced cell apoptosis and ceased S phase of cell cycle. Furthermore,… More >

Weiyu FU¹, Hongyu LU², Li LI³, Kefeng WU³, Yanping LI³, Yi LIU^3,*, Jianli HU^4,*

BIOCELL, Vol.39, No.2-3, pp. 25-32, 2015, DOI:10.32604/biocell.2015.39.025

Abstract Objective: To assess the diagnostic accuracy of serum GPC3 versus alpha-fetoprotein (AFP) for HCC by using the method of system review.
Methods: PubMed and EMBASE were searched from its inception to 20, April 2014 for studies that compared diagnostic accuracy of serum GPC3 with AFP for HCC. Sensitivity, specificity and other measures were pooled using random-effects models. Summary receiver operating characteristic curve analysis was used to summarize the overall test performance.
Results: Fourteen studies were included in this meta-analysis. Summary estimates for serum GPC3 and AFP in diagnosing HCC were as follows: sensitivity, 69% (95% confidence interval (CI), 56-80%) vs.… More >

H. Heras, R.J. Pollero

BIOCELL, Vol.26, Suppl.S, pp. 111-118, 2002

Abstract This article has no abstract. More >

MARCELO SILVA-BRIANO¹ , SANDRA LUZ MARTÍNEZ-HERNÁNDEZ¹ , ARACELI ADABACHE-ORTÍZ¹ , JAVIER VENTURA-JUÁREZ² , EVA SALINAS³ , J. LUIS QUINTANAR⁴

BIOCELL, Vol.31, No.2, pp. 225-228, 2007, DOI:10.32604/biocell.2007.31.225

Abstract Syntaxin-1 and 25-kDa Synaptosome-associated Protein (SNAP-25) are present in the plasma membrane of several different secretory cell types and are involved in the exocytosis process. In this work, the free-living amoeba Difflugia corona was studied in relation to ultrastructure, structural membrane proteins, and proteins such as Syntaxin-1 and SNAP-25. Our results obtained by scanning electron microscopy in the amoeba without its theca, showed many membrane projections and several pore-like structures. Using immunocytochemistry, we found structural proteins Syntaxin-1 and SNAP-25. More >