cxcl16 expression
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Biomedicines ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1715
Author(s):  
Concepción Santiago-Fernández ◽  
Flores Martín-Reyes ◽  
Monica Tome ◽  
Carolina Gutierrez-Repiso ◽  
Diego Fernandez-Garcia ◽  
...  

Background: Little is known about the effects of hypoxia on scavenger receptors (SRs) levels in adipocytes. We analyzed the effect of morbid obesity and hypoxia on SRs and inflammation markers in human visceral adipocytes and whether ox-LDL modify the inflammatory profile produced by hypoxia. Methods: We studied in 17 non-obese and 20 subjects with morbid obesity (MO) the mRNA expression of HIF-1α, SRs (LOX-1, MSR1, CL-P1 and CXCL16), IL6 and TNFα in visceral adipocytes and the effect of hypoxia with or without ox-LDL on visceral in vitro-differentiated adipocytes (VDA). Results: HIF-1α, TNFα, IL6, LOX-1, MSR1 and CXCL16 expression in adipocytes was increased in MO when compared with those in non-obese subjects (p < 0.05). The expression of most of the inflammatory markers and SRs gene correlated with HIF-1α. In VDA, hypoxia increased TNFα, IL6, MSR1, CXCL16 and CL-P1 (p < 0.05) in non-obese subjects, and TNFα, IL6, MSR1 and CXCL16 (p < 0.05) in MO. Silencing HIF-1α prevented the increase of TNFα, IL6, LOX-1, MSR1, CL-P1 and CXCL16 expression (p < 0.05). The combination of hypoxia and ox-LDL produced higher TNFα expression (p = 0.041). Conclusions: Morbid obesity and hypoxia increased SRs and inflammatory markers in visceral adipocytes. In a hypoxic state, ox-LDL increased the proinflammatory response of visceral adipocytes to hypoxia.


2020 ◽  
Vol 28 ◽  
pp. S508-S509
Author(s):  
S. Redding ◽  
L. Junginger ◽  
P. Rzeczycki ◽  
C. Rasner ◽  
T. Maerz

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Min Joo Kim ◽  
Hyun Jin Sun ◽  
Young Shin Song ◽  
Seong-Keun Yoo ◽  
Young A Kim ◽  
...  

Abstract Although various chemokines have pro-tumorigenic actions in cancers, the effects of CXCL16 remain controversial. The aim of this study was to investigate the molecular characteristics of CXCL16-expressing papillary thyroid cancers (PTCs). CXCL16 expressions were significantly higher in PTCs than benign or normal thyroid tissues. In the TCGA dataset for PTCs, a higher CXCL16 expression was associated with M2 macrophage- and angiogenesis-related genes and poor prognostic factors including a higher TNM staging and the BRAFV600E mutation. PTCs with a higher expression of 3-gene panel including CXCL16, AHNAK2, and THBS2 showed poor recurrence-free survivals than that of the lower expression group. Next, shCXCL16 was introduced into BHP10-3SCp cells to deplete the endogenous CXCL16, and then, the cells were subcutaneously injected to athymic mice. Tumors from the BHP10-3SCpshCXCL16 exhibited a delayed tumor growth with decreased numbers of ERG+ endothelial cells and F4/80+ macrophages than those from the BHP10-3SCpcontrol. CXCL16-related genes including AHNAK2 and THBS2 were downregulated in the tumors from the BHP10-3SCpshCXCL16 compared with that from the BHP10-3SCpcontrol. In conclusion, a higher CXCL16 expression was associated with macrophage- and angiogenesis-related genes and aggressive phenotypes in PTC. Targeting CXCL16 may be a good therapeutic strategy for advanced thyroid cancer.


2019 ◽  
Vol 69 ◽  
pp. 143-149 ◽  
Author(s):  
Qi Xiao ◽  
Xiaoyan Zhu ◽  
Shaonan Yang ◽  
Jing Wang ◽  
Ruihua Yin ◽  
...  
Keyword(s):  

2015 ◽  
Vol 114 (08) ◽  
pp. 297-312 ◽  
Author(s):  
Sascha Meyer dos Santos ◽  
Kira Blankenbach ◽  
Klaus Scholich ◽  
Angela Dörr ◽  
Nadejda Monsefi ◽  
...  

SummaryEndothelial chemokine CXC motif ligand 16 (CXCL16) expression is associated with atherosclerosis, while platelets, particularly those attaching to atherosclerotic plaque, contribute to all stages of athero-sclerotic disease. This investigation was designed to examine the role of CXCL16 in capturing platelets from flowing blood. CXCL16 was expressed in human atherosclerotic plaques, and lesion severity in human carotid endarterectomy specimens was positively correlated with CXCL16 levels. CXCL16 expression in plaques was co-localised with platelets deposited to the endothelium. Immobilised CXCL16 promoted CXCR6-dependent platelet adhesion to the human vessel wall, endothelial cells and von Willebrand factor during physiologic flow. At low shear, immobilised CXCL16 captured platelets from flowing blood. It also induced irreversible platelet aggregation and a rise in intra-platelet calcium levels. These results demonstrate that endothelial CXCL16’s action on platelets is not only limited to platelet activation, but that immobilised CXCL16 also acts as a potent novel platelet adhesion ligand, inducing platelet adhesion to the human vessel wall.


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yeying Fang ◽  
Fraser C. Henderson ◽  
Qiong Yi ◽  
Qianqian Lei ◽  
Yan Li ◽  
...  

Background.Increasing evidence argues that soluble CXCL16 promotes proliferation, migration, and invasion of cancer cellsin vitro. However, the role of transmembrane or cellular CXCL16 in cancer remains relatively unknown. In this study, we determine the function of cellular CXCL16 as tumor suppressor in breast cancer cells.Methods.Expression of cellular CXCL16 in breast cancer cell lines was determined at both RNA and protein levels.In vitroandin vivostudies that overexpressed or downregulated CXCL16 were conducted in breast cancer cells.Results.We report differential expression of cellular CXCL16 in breast cancer cell lines that was negatively correlated with cell invasiveness and migration. Overexpression of CXCL16 in MDA-MB-231 cells led to a decrease in cell invasion and migration and induced apoptosis of the cells; downregulation of CXCL16 in MCF-7 cells increased cell migration and invasiveness. Consistent with thein vitrodata, CXCL16 overexpression inhibited tumorigenesisin vivo.Conclusions.Cellular CXCL16 suppresses invasion and metastasis of breast cancer cellsin vitroand inhibits tumorigenesisin vivo. Targeting of cellular CXCL16 expression is a potential therapeutic strategy for breast cancer.


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