Ying Wang¹, Weijun Zhang¹, Fei Cai¹, Yong Tao^2,*

Congenital Heart Disease, Vol.19, No.6, pp. 653-669, 2024, DOI:10.32604/chd.2025.060406 - 27 January 2025

Abstract Background: Previous studies combined integrated scRNA-seq with bulk RNA data to screen biomarkers for cardiomyopathy. This study extended this approach to identify biomarkers specific for hypertrophic cardiomyopathy (HCM). Methods: Datasets GSE36961, GSE130036, GSE249925 and GSE203274 were analyzed in this study. ScRNA-seq analysis was employed to identify distinct cell populations. Differentially expression analysis was conducted to screen vascular endothelial cells (VECs)-related feature genes. After calculating VECs score, WGCNA was used to correlate gene modules with the VECs score. Key HCM biomarkers were determined using random forest analysis, and LASSO regression analyses to construct a diagnostic model… More >

WEIXUE WANG^#, TONGTONG WANG^#, YAN ZHANG, TING DENG, HAIYANG ZHANG^*, YI BA^*

Oncology Research, Vol.32, No.3, pp. 489-502, 2024, DOI:10.32604/or.2023.046676 - 06 February 2024

Abstract Different from necrosis, apoptosis, autophagy and other forms of cell death, ferroptosis is a mechanism that catalyzes lipid peroxidation of polyunsaturated fatty acids under the action of iron divalent or lipoxygenase, leading to cell death. Apatinib is currently used in the third-line standard treatment of advanced gastric cancer, targeting the anti-angiogenesis pathway. However, Apatinib-mediated ferroptosis in vascular endothelial cells has not been reported yet. Tumor-secreted exosomes can be taken up into target cells to regulate tumor development, but the mechanism related to vascular endothelial cell ferroptosis has not yet been discovered. Here, we show that More >

JING LI^1,2, WANWAN FAN⁴, LILI HAO¹, YONGSHENG LI⁵, GUOCHENG YU¹, WEI SUN⁶, XIANQIONG LUO^2,*, JINGXIANG ZHONG^1,3,*

BIOCELL, Vol.47, No.11, pp. 2485-2494, 2023, DOI:10.32604/biocell.2023.044177 - 27 November 2023

Abstract Objective: This study aimed to investigate the potential of human umbilical cord mesenchymal stem cell (hucMSC)-derived exosomes (hucMSC-Exos) in inhibiting hypoxia-induced cell hyper proliferation and overexpression of vascular endothelial growth factor A (VEGF-A) in immature human fetal retinal microvascular endothelial cells (hfRMECs). Methods: Exosomes were isolated from hucMSCs using cryogenic ultracentrifugation and characterized through various techniques, including transmission electron microscopy, nanoparticle tracking analysis, bicinchoninic acid assays, and western blotting. The hfRMECs were identified using von Willebrand factor (vWF) co-staining and divided into four groups: a control group cultured under normoxic condition, a hypoxic model group, a hypoxic… More > Graphic Abstract

WENLI JIANG^1,#, JUNYI SHEN^1,#, XIAOQIANG DU^1,#, YAN QIU¹, JIAN ZHONG¹, ZHI OUYANG¹, BINGMEI M. FU², YE ZENG^1,*

BIOCELL, Vol.47, No.10, pp. 2255-2263, 2023, DOI:10.32604/biocell.2023.030880 - 08 November 2023

Abstract Background: Anisodine hydrobromide (AT3), an anti-cholinergic agent, could be delivered to the brain across the blood-brain barrier and has been used clinically for the treatment of cerebral ischemia/reperfusion injury. Endothelial dysfunction can be caused by hypoxia/reoxygenation (H/R) via oxidative stress and metabolic alterations. The present study investigated whether AT3 regulates the production of nitric oxide (NO) and reactive oxygen species (ROS), and the HIF-1α pathway via regulation of muscarinic acetylcholine receptors (mAChRs) in brain microvascular endothelial cells after H/R exposure. Methods: Under H/R conditions, hCMEC/D3 cerebral microvascular endothelial cells were treated with AT3. Specific inhibitors… More > Graphic Abstract

Evemie Schutyser^1,2, Yingjun Su², Yingchun Yu², Mieke Gouwy¹, Snjezana Zaja-Milatovic², Jo Van Damme¹, Ann Richmond²

European Cytokine Network, Vol.18, No.2, pp. 59-70, 2007, DOI:10.1684/ecn.2007.0087

Abstract The influence of environmental factors (cytokines, matrix components, serum factors and O₂ level) on expression of receptors for angiogenic versus angiostatic CXC chemokines in human microvascular endothelial cells has not been extensively investigated. Our semi-quantitative RT-PCR analysis demonstrated that TNF-α and IFN-γ repressed CXCR4 mRNA levels in immortalized human microvascular endothelial HMEC-1 cells after 4 h, whereas only TNF-α displayed inhibitory activity in primary human microvascular endothelial cells (HMVEC). CXCR4 mRNA expression was not affected by VEGF, GM-CSF, IL-1β or various basal membrane matrix components, but was significantly up-regulated after serum starvation and/or hypoxic treatment of… More >

Evemie Schutyser^1,2, Yingjun Su², Yingchun Yu², Mieke Gouwy¹, Snjezana Zaja-Milatovic², Jo van Damme¹, Ann Richmond²

European Cytokine Network, Vol.18, No.2, pp. 11-22, 2007, DOI:10.1684/ecn.2007.0087

Abstract The influence of environmental factors (cytokines, matrix components, serum factors and O₂ level) on expression of receptors for angiogenic versus angiostatic CXC chemokines in human microvascular endothelial cells has not been extensively investigated. Our semi-quantitative RT-PCR analysis demonstrated that TNF-α and IFN-γ repressed CXCR4 mRNA levels in immortalized human microvascular endothelial HMEC-1 cells after 4 h, whereas only TNF-a displayed inhibitory activity in primary human microvascular endothelial cells (HMVEC). CXCR4 mRNA expression was not affected by VEGF, GM-CSF, IL-1β or various basal membrane matrix components, but was significantly up-regulated after serum starvation and/or hypoxic treatment of… More >

Wei Huang^*

Molecular & Cellular Biomechanics, Vol.4, No.3, pp. 119-132, 2007, DOI:10.3970/mcb.2007.004.119

Abstract This work presents a tensorial description of the geometrical arrangement of the cellular molecules in the vascular endothelial cells. The geometrical arrangement of the molecules is the foundation of the mechanical properties of the molecular aggregates, which are the foundation of the physical behavior of the cells and tissues. For better studying the physical behavior of the cells and tissues, the geometrical arrangement of the cellular molecules has to be described quantitatively. In this paper, a second order molecular configuration tensor P_ij^g for fibrous protein in the cells is defined for quantitative measurement. Here, the subscripts i,… More >