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Evaluation of liver specific ionizable lipid nanocarrierin the delivery of siRNA
Chem Phys Lipids. 2022 May 24:105207. doi: 10.1016/j.chemphyslip.2022.105207. Online ahead of print.ABSTRACTHepcidin, a key regulator of iron homeostasis, has been implicated in the pathogenesis of various iron-related diseases. Although small interfering RNA (siRNA) are potent to modulate the expression of hepcidin, their bioavailability remains a major issue. The β-galactopyranoside-conjugated liposomes (GAL-liposome) targeting liver synthesized hepcidin were prepared by thin lipid film hydration method to encapsulate siRNA and the conjugation of β-galactopyranoside to the lipid nanocarrier was achieved by covalent che...
Source: Chemistry and Physics of Lipids - May 27, 2022 Category: Lipidology Authors: Shilpa Rana Archana Bhatnagar Suman Singh Nirmal Prabhakar Source Type: research

Astragalus Total Saponins Ameliorate Peritoneal Fibrosis by Promoting Mitochondrial Synthesis and Inhibiting Apoptosis
In conclusion, ATS treatment may be an effective therapeutic agent to inhibit high glucose-induced in peritoneal fibrosis through PGC-1[Formula: see text]-mediated apoptosis.PMID:34983328 | DOI:10.1142/S0192415X22500094
Source: The American Journal of Chinese Medicine - January 5, 2022 Category: Complementary Medicine Authors: Zheng-Hong Li Rong Xu Jun Shi Man-Shu Yu Yu Zhong Wei-Ming He Li-Ping Cao Mei-Xiao Sheng Source Type: research

Ischemia-Reperfusion Injury Reduces Kidney Folate Transporter Expression and Plasma Folate Levels
In conclusion, ischemia-reperfusion injury can downregulate Sp1 mediated-folate transporter expression in tubular cells, which may reduce folate reabsorption and lead to low folate status.
Source: Frontiers in Immunology - June 4, 2021 Category: Allergy & Immunology Source Type: research

Activation of RAS contributes to peritoneal fibrosis via dysregulation of low-density lipoprotein receptor.
In conclusion, increased intracellular RAS activity impaired lipid homeostasis and induced ECM accumulation in HPMCs by disrupting the LDLr pathway, which contributed to PF. PMID: 33427062 [PubMed - as supplied by publisher]
Source: Am J Physiol Renal P... - January 11, 2021 Category: Urology & Nephrology Authors: Liu J, Feng Y, Li N, Shao QY, Zhang Q, Sun C, Xu P, Jiang CM Tags: Am J Physiol Renal Physiol Source Type: research

Elevated expression of HDAC6 in clinical peritoneal dialysis patients and its pathogenic role on peritoneal angiogenesis.
In this study, we analyzed the expression of HDAC6 in the peritoneum from patients with non-PD and PD-related peritonitis and dialysis effluent from stable PD patients. Our study revealed that HDAC6 expressed highly in the peritoneum with peritonitis and co-stained with α-smooth muscle actin (α-SMA), a biomarker of the myofibroblast. And the level of HDAC6 in the dialysate increased with time and positively correlated with transforming growth factor-β1 (TGF-β1), interleukin-6 (IL-6) and vascular endothelial growth factor (VEGF), and negatively with cancer antigen 125 (CA125). In vitro, blockading HDAC6 with a selective...
Source: Renal Failure - September 1, 2020 Category: Urology & Nephrology Tags: Ren Fail Source Type: research

DDR1 and MT1-MMP Expression Levels Are Determinant for Triggering BIK-Mediated Apoptosis by 3D Type I Collagen Matrix in Invasive Basal-Like Breast Carcinoma Cells
In conclusion, and in agreement with the other studies (Ford et al., 2007; Koh et al., 2015; Toy et al., 2015; Takai et al., 2018), our data suggest that during the acquisition of mesenchymal features, the level of full-length DDR1 expression should be considered, in addition to the other markers, as an important biomarker in the prognosis of aggressive breast carcinomas. As summarized in Figure 9, the regulation of cell proliferation and apoptosis by the collagen/DDR1 axis involves a differential activation of DDR1 signaling pathway and thus BIK expression. In the case of the basal-like bre...
Source: Frontiers in Pharmacology - May 2, 2019 Category: Drugs & Pharmacology Source Type: research

Dimethylaminomicheliolide ameliorates peritoneal fibrosis through the activation of autophagy
This study aimed to investigate the protective effect of DMAMCL against PD-related PF and the mechanisms involved. In this study, we found that DMAMCL significantly decreased PD-induced extracellular matrix (ECM) deposition in a mouse model of PD, and that delayed DMAMCL administration halted the progression of PF in an established PD model. In addition, rapamycin administration induced autophagy and significantly ameliorated PF. The protective effect of DMAMCL against PF was weakened when co-administered with DMAMCL and 3-methyladenine. Inducing autophagy by rapamycin decreased transforming growth factor- β1–induced EC...
Source: Journal of Molecular Medicine - March 10, 2019 Category: Molecular Biology Source Type: research

Dimethylaminomicheliolide ameliorates peritoneal fibrosis through the activation of autophagy.
This study aimed to investigate the protective effect of DMAMCL against PD-related PF and the mechanisms involved. In this study, we found that DMAMCL significantly decreased PD-induced extracellular matrix (ECM) deposition in a mouse model of PD, and that delayed DMAMCL administration halted the progression of PF in an established PD model. In addition, rapamycin administration induced autophagy and significantly ameliorated PF. The protective effect of DMAMCL against PF was weakened when co-administered with DMAMCL and 3-methyladenine. Inducing autophagy by rapamycin decreased transforming growth factor-β1-induced ECM a...
Source: Molecular Medicine - March 10, 2019 Category: Molecular Biology Authors: Li S, Peng F, Gong W, Wu J, Wang Y, Xu Z, Liu W, Li H, Yin B, Zhang Y, Chen S, Luo C, Li P, Chen Y, Huang Q, Zhou W, Long H Tags: J Mol Med (Berl) Source Type: research

Mammalian Target of Rapamycin Complex 1 Activation Disrupts the Low-Density Lipoprotein Receptor Pathway: A Novel Mechanism for Extracellular Matrix Accumulation in Human Peritoneal Mesothelial Cells
Peritoneal fibrosis (PF) is characterized by progressive extracellular matrix (ECM) accumulation. Increasing evidence has suggested that ECM synthesis was increased in human peritoneal mesothelial cells (HPMCs) under high-glucose conditions, but the effects of high-glucose peritoneal dialysis solution (PDS) on ECM synthesis have not been fully elucidated. The aim of this study was to explore the potential mechanisms of high-glucose PDS-induced production of ECM in  HPMCs. HPMCs were stimulated by high-glucose PDS. The activity of mammalian target of rapamycin complex 1 (mTORC1) was inhibited by rapamycin or regulatory-as...
Source: American Journal of Nephrology - November 13, 2018 Category: Neurology Source Type: research

Mammalian Target of Rapamycin Complex 1 Activation Disrupts the Low-Density Lipoprotein Receptor Pathway: A Novel Mechanism for Extracellular Matrix Accumulation in Human Peritoneal Mesothelial Cells.
Abstract Peritoneal fibrosis (PF) is characterized by progressive extracellular matrix (ECM) accumulation. Increasing evidence has suggested that ECM synthesis was increased in human peritoneal mesothelial cells (HPMCs) under high-glucose conditions, but the effects of high-glucose peritoneal dialysis solution (PDS) on ECM synthesis have not been fully elucidated. The aim of this study was to explore the potential mechanisms of high-glucose PDS-induced production of ECM in HPMCs. HPMCs were stimulated by high-glucose PDS. The activity of mammalian target of rapamycin complex 1 (mTORC1) was inhibited by rapamycin...
Source: American Journal of Nephrology - November 13, 2018 Category: Urology & Nephrology Authors: Liu J, Zhu W, Jiang CM, Feng Y, Xia YY, Zhang QY, Xu PF, Zhang M Tags: Am J Nephrol Source Type: research

Autophagy promotes fibrosis and apoptosis in the peritoneum during long ‐term peritoneal dialysis
In this study, we found that the coincidence of elevated TGF‐β1 expression, autophagy, apoptosis and fibrosis in peritoneal membrane from patients with peritoneal dialysis. The peritoneal membranes from patients were performed with immunocytochemistry and transmission electron microscopy. Human peritoneal mesothelial cells were treated with 1.5%, 2.5% and 4.25% HGPDS for 24 hrs; Human peritoneal mesothelial cells pre‐treated with TGF‐β1 (10 ng/ml) or transfected with siRNA Beclin1 were treated with 4.25% HGPDS or vehicle for 24 hrs. We further detected the production of TGF‐β1, activation of TGF‐β1/Smad2/3 si...
Source: Journal of Cellular and Molecular Medicine - October 27, 2017 Category: Molecular Biology Authors: Jingjing Wu, Changying Xing, Li Zhang, Huijuan Mao, Xuguan Chen, Mingxing Liang, Fang Wang, Haibin Ren, Hongqing Cui, Aiqin Jiang, Zibin Wang, Meijuan Zou, Yong Ji Tags: Original Article Source Type: research

Autophagy promotes fibrosis and apoptosis in the peritoneum during long-term peritoneal dialysis.
In this study, we found that the coincidence of elevated TGF-β1 expression, autophagy, apoptosis and fibrosis in peritoneal membrane from patients with peritoneal dialysis. The peritoneal membranes from patients were performed with immunocytochemistry and transmission electron microscopy. Human peritoneal mesothelial cells were treated with 1.5%, 2.5% and 4.25% HGPDS for 24 hrs; Human peritoneal mesothelial cells pre-treated with TGF-β1 (10 ng/ml) or transfected with siRNA Beclin1 were treated with 4.25% HGPDS or vehicle for 24 hrs. We further detected the production of TGF-β1, activation of TGF-β1/Smad2/3 signalling, ...
Source: J Cell Mol Med - October 27, 2017 Category: Molecular Biology Authors: Wu J, Xing C, Zhang L, Mao H, Chen X, Liang M, Wang F, Ren H, Cui H, Jiang A, Wang Z, Zou M, Ji Y Tags: J Cell Mol Med Source Type: research

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