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Molecules, Vol. 27, Pages 6236: Akebia Saponin D Inhibits the Inflammatory Reaction by Inhibiting the IL-6-STAT3-DNMT3b Axis and Activating the Nrf2 Pathway
This study aimed to preliminarily explore the anti-inflammatory effect of ASD and the underlying mechanisms from the perspective of DNA methylation and inflammation-related pathways. We found that ASD significantly reduced the production of multiple inflammatory mediators, including nitric oxide (NO) and prostaglandin E2 (PGE2), in LPS-induced RAW264.7 cells. The expression of DNA methyltransferase (DNMT) 3b and inducible nitric oxide synthase (iNOS) was also obviously inhibited by the ASD treatment. The protein and mRNA levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were als...
Source: Molecules - September 22, 2022 Category: Chemistry Authors: Jin-Fang Luo Chon-Kit Lio Hua Zhou Tags: Article Source Type: research

Molecules, Vol. 27, Pages 1990: Dihydrohomoplantagin and Homoplantaginin, Major Flavonoid Glycosides from Salvia plebeia R. Br. Inhibit oxLDL-Induced Endothelial Cell Injury and Restrict Atherosclerosis via Activating Nrf2 Anti-Oxidation Signal Pathway
In this study, we evaluated the effect of homoplantaginin and its derivative dihydrohomoplantagin on oxLDL-induced endothelial cell injury and atherosclerosis in apoE-/- mice. Our results showedthat both dihydrohomoplantagin and homoplantaginin inhibited apoptosis and the increased level of ICAM-1 and VCAM-1 in oxLDL-stimulated HUVECs and the plaque endothelium of apoE-/- mice. Additionally, both of them restricted atherosclerosis development of apoE-/- mice. Mechanistic studies showed that oxLDL-induced the increase in ROS production, phosphorylation of ERK and nuclear translocation of NF-κB in HUVECs was si...
Source: Molecules - March 19, 2022 Category: Chemistry Authors: Ning Meng Kai Chen Yanhong Wang Jiarong Hou Wenhui Chu Shan Xie Fengying Yang Chunhui Sun Tags: Article Source Type: research

Potential inhibitors and plant based technology: An alternative approach to treat corona virus
Bioorg Chem. 2021 Nov 1;117:105460. doi: 10.1016/j.bioorg.2021.105460. Online ahead of print.ABSTRACTThe current pneumonia outbreak, which began in early December 2019 near Wuhan City, Hubei Province, China, is caused by a novel corona virus (CoV) known as '2019-nCoV' or '2019 novel corona virus or COVID-19' by the World Health Organization (WHO). Vaccines are available to prevent corona virus contagious infection or to reduce the viral load in body but virus is continuously mutating itself to infect people at severity. In this critical scenario this review provide a compiled study for techniques and tools that can be used...
Source: Bioorganic Chemistry - November 11, 2021 Category: Chemistry Authors: Sachin Sharma Chetana Suvalka None Bharti Manoj Joshi Ayush Bahuguna Source Type: research

Shear-responsive peptide/siRNA complexes as lung-targeting gene vectors
Publication date: Available online 11 December 2020Source: Chinese Chemical LettersAuthor(s): Dongxiao Yin, Mengjie Zhang, Jiaxin Chen, Yuanyu Huang, Dehai Liang
Source: Chinese Chemical Letters - December 12, 2020 Category: Chemistry Source Type: research

Acid-activatible micelleplex delivering siRNA-PD-L1 for improved cancer immunotherapy of CDK4/6 inhibition
Publication date: Available online 11 December 2020Source: Chinese Chemical LettersAuthor(s): Jing Gao, Hanwu Zhang, Fengqi Zhou, Bo Hou, Meiwan Chen, Zhigang Xie, Haijun Yu
Source: Chinese Chemical Letters - December 12, 2020 Category: Chemistry Source Type: research

A novel polyethyleneimine-decorated FeOOH nanoparticle for efficient siRNA delivery
Publication date: Available online 20 November 2020Source: Chinese Chemical LettersAuthor(s): Shuai Guo, Bei Liu, Mengjie Zhang, Chunhui Li, Xiaoxia Wang, Yuhua Weng, Lele Li, Yuanyu Huang
Source: Chinese Chemical Letters - November 20, 2020 Category: Chemistry Source Type: research

Molecules, Vol. 25, Pages 4591: Magnolol Enhances the Therapeutic Effects of TRAIL through DR5 Upregulation and Downregulation of c-FLIP and Mcl-1 Proteins in Cancer Cells
Kwon Magnolol is a biologically active compound, isolated from the Chinese herb Magnolia, that regulates antiproliferative, anticancer, antiangiogenic and antimetastatic activities. We found that magnolol sensitizes TRAIL-induced apoptotic cell death via upregulation of DR5 and downregulation of cellular FLICE-inhibitory protein (c-FLIP) and Mcl-1 in cancer cells, but not in normal cells. Mechanistically, magnolol increased ATF4-dependent DR5 expression at the transcription level, and knockdown of ATF4 markedly inhibited magnolol-induced DR5 upregulation. Silencing DR5 with siRNA prevented combined treatment with magn...
Source: Molecules - October 8, 2020 Category: Chemistry Authors: Seon Min Woo Kyoung-jin Min Taeg Kyu Kwon Tags: Article Source Type: research

Preparation of poly(glutamic acid) shielding micelles self-assembled from polylysine-b-polyphenylalanine for gene and drug codelivery
Publication date: Available online 19 February 2020Source: Chinese Chemical LettersAuthor(s): Jing Ma, Jingpeng Zhang, Lin Chi, Chong Liu, Yanhui Li, Huayu TianABSTRACTA novel amphiphilic cationic block copolymer polylysine-b-polyphenylalanine (PLL-b-PPhe) was synthesized and self-assembled into micelles in aqueous solution, then shielded with poly(glutamic acid) (marked as PG/PLL-b-PPhe) to codeliver gene and drug for combination cancer therapy. Here, doxorubicin (DOX) was selected to be loaded into PLL-b-PPhe micelles and the drug loading efficiency was 8.0%. The drug release studies revealed that the PLL-b-PPhe micelles...
Source: Chinese Chemical Letters - February 19, 2020 Category: Chemistry Source Type: research

A supramolecular co-delivery strategy for combined breast cancer treatment and metastasis prevention
Publication date: Available online 13 June 2019Source: Chinese Chemical LettersAuthor(s): Yuxuan Chen, Bowen Li, Xiaohong Chen, Min Wu, Yongtao Ji, Guping Tang, Yuan PingAbstractWe herein propose a co-delivery approach where small interference RNA (siRNA) and anticancer chemotherapeutic drug are simultaneously loaded into a single delivery carrier for the combined treatment of breast cancer and metastasis prevention. The co-delivery vector is composed of chondroitin sulfate (CS)-coated β-cyclodextrin-polyethylenemine polymer, which is capable of loading paclitaxel (PTX) and siRNA simultaneously to form therapeutic nanocom...
Source: Chinese Chemical Letters - June 15, 2019 Category: Chemistry Source Type: research

A reactive oxygen species-responsive dendrimer with low cytotoxicity for efficient and targeted gene delivery
Publication date: Available online 25 March 2019Source: Chinese Chemical LettersAuthor(s): Yueqi Wang, Changjian Li, Libo Du, Yang LiuAbstractNonviral vectors have been attracting more attention for several advantages in gene delivery and the development of nonviral gene carriers with high delivery efficiency and low cytotoxicity has long been a key project. Starburst polyamidoamine dendrimers are a class of synthetic polymers with unique structural and physical characteristics. However, when they are used as gene carrier, the gene transfection efficiency is not satisfactory. Herein, a novel thioketal-core polyamidoamine d...
Source: Chinese Chemical Letters - March 26, 2019 Category: Chemistry Source Type: research

ROS-induced HSP70 promotes cytoplasmic translocation of high-mobility group box 1b and stimulates antiviral autophagy in grass carp kidney cells Cell Biology
In this study, we found that both grass carp reovirus (GCRV) infection and hydrogen peroxide (H2O2) treatment induced the accumulation of reactive oxygen species (ROS) in C. idella kidney cells and stimulate autophagy. Suppressing ROS accumulation with N-acetyl-l-cysteine significantly inhibited GCRV-induced autophagy activation and enhanced GCRV replication. Although ROS-induced autophagy, in turn, restricted GCRV replication, further investigation revealed that the multifunctional cellular protein high-mobility group box 1b (HMGB1b) serves as a heat shock protein 70 (HSP70)–dependent, pro-autophagic protein in grass ca...
Source: Journal of Biological Chemistry - November 9, 2018 Category: Chemistry Authors: Youliang Rao, Quanyuan Wan, Hang Su, Xun Xiao, Zhiwei Liao, Jianfei Ji, Chunrong Yang, Li Lin, Jianguo Su Tags: Immunology Source Type: research

Advances in quantum dot-mediated siRNA delivery
Publication date: Available online 13 July 2017 Source:Chinese Chemical Letters Author(s): Zhi-Yao He, Zhao-Hui Jin, Mei Zhan, Zhou Qin, Zhi Li, Ting Xu Nano-sized quantum dots (QDs) exhibit uniquely optical properties that are tunable with different sizes and shapes. QDs can emit narrow symmetric bands under a wide excitation range, possess anti-photobleaching stability, and be bio-functionalized on the large surface area. Therefore, QDs are attractive vectors for imaging-guided therapy. Small-interfering RNA (siRNAs)-based therapeutics hold great potential to target a large part of the currently undruggable genes, but o...
Source: Chinese Chemical Letters - July 14, 2017 Category: Chemistry Source Type: research