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Specialty: Drugs & Pharmacology
Condition: Rheumatoid Arthritis

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Total 20 results found since Jan 2013.

Valdecoxib attenuates lipid-induced hepatic steatosis through autophagy-mediated suppression of endoplasmic reticulum stress
This study investigated the effects of VAL on lipid accumulation and lipogenesis in human primary hepatocytes. Treatment with VAL suppressed lipid accumulation and expressions of lipogenic genes, such as processed sterol regulatory element binding proteins (SREBP1) and stearoyl-CoA desaturase-1 (SCD1) in palmitate-treated hepatocytes. Furthermore, VAL ameliorated dose-dependently palmitate-induced ER stress markers. Treatment of hepatocytes with VAL increased AMPK phosphorylation and SIRT6 expression. siRNA-mediated suppression of AMPK or SIRT6 abolished the effects of VAL on lipid accumulation, lipogenesis, and endoplasmi...
Source: Biochemical Pharmacology - March 31, 2022 Category: Drugs & Pharmacology Authors: Seung Yeon Park Wonjun Cho A M Abd El-Aty Ahmet Hacimuftuoglu Ji Hoon Jeong Tae Woo Jung Source Type: research

Systemic delivery of siRNA to the colon using peptide modified PEG-PCL polymer micelles for the treatment of ulcerative colitis
In this study, we investigated the effects of siRNA delivered using MPEG-PCL-CH2R4H2C nanomicelles through intravenous administration to the inflammation site of dextran sulfate sodium-induced colitis mice. The MPEG-PCL-CH2R4H2C micelles had optimum physical properties and high siRNA compaction ability. Moreover, model-siRNA delivered through MPEG-PCL-CH2R4H2C showed higher accumulation in the inflammatory site than that of the naked siRNA. Furthermore, intravenous administration of MPEG-PCL-CH2R4H2C/siRelA micelles, targeting siRelA, a subunit of NF-κB, significantly decreased the shortening of large intestine, clinical ...
Source: European Journal of Pharmaceutics and Biopharmaceutics - December 29, 2021 Category: Drugs & Pharmacology Authors: Hisako Ibaraki Naruhiro Hatakeyama Naoki Arima Akihiro Takeda Yasuo Seta Takanori Kanazawa Source Type: research

Yi Shen Juan Bi Pill Regulates the Bone Immune Microenvironment via the JAK2/STAT3 Signaling Pathway in Vitro
This study provides a new strategy for regulating the bone immune microenvironment in RA with traditional Chinese medicine.
Source: Frontiers in Pharmacology - December 14, 2021 Category: Drugs & Pharmacology Source Type: research

Blockade of TRPM7 Alleviates Chondrocyte Apoptosis and Articular Cartilage Damage in the Adjuvant Arthritis Rat Model Through Regulation of the Indian Hedgehog Signaling Pathway
This study focused on the effects of TRPM7 on arthritic chondrocyte injury and its underlying mechanisms of action. Sodium nitroprusside (SNP)-induced rat primary chondrocyte apoptosis and rat adjuvant arthritis (AA) were used as in vitro and in vivo models, respectively. Blockage of TRPM7 with 2-APB or specific siRNA resulted in increased chondrocyte viability and reduced toxicity of SNP. Moreover, treatment with 2-APB enhanced the Bcl-2/Bax ratio and reduced cleaved PARP and IL-6, MMP-13 and ADAMTS-5 expression in SNP-treated chondrocytes. Activation of Indian Hedgehog with purmorphamine reversed the protective effects o...
Source: Frontiers in Pharmacology - April 13, 2021 Category: Drugs & Pharmacology Source Type: research

PLGA/PCADK Composite Microspheres Containing Hyaluronic Acid–Chitosan siRNA Nanoparticles: A Rational Design for Rheumatoid Arthritis Therapy
Publication date: Available online 23 January 2021Source: International Journal of PharmaceuticsAuthor(s): Menghui Zhao, Tianyu Zhu, Jicong Chen, Yaxin Cui, Xueyan Zhang, Robert J. Lee, Fengying Sun, Youxin Li, Lesheng Teng
Source: International Journal of Pharmaceutics - January 25, 2021 Category: Drugs & Pharmacology Source Type: research

Study of Double-Targeting Nanoparticles Loaded With MCL-1 siRNA and Dexamethasone for Adjuvant-induced Arthritis Therapy.
In this study, HA-coated pH-responsive nanoparticles loaded with MCL-1 small interfering RNA (siRNA) and dexamethasone (HNPs/MD) were developed for RA treatment. The HNPs/MD had a mean particle size of 117.07 ± 2.21 nm and zeta potential of 15.53 ± 1.06 mV. The release rates of both MCL-1 siRNA and dexamethasone from the HNPs/MD at pH 4.5 and 6.0 were higher than those at pH 7.4, indicating that the nanoparticles were acid-sensitive. Cytotoxicity assays showed that compared with single drug loaded nanoparticles, the HNPs/MD showed higher cytotoxicity to activated macrophages. The superior therapeutic effect of HNPs/MD wa...
Source: European Journal of Pharmaceutics and Biopharmaceutics - July 14, 2020 Category: Drugs & Pharmacology Authors: Li X, Yu C, Meng X, Hou Y, Cui Y, Zhu T, Li Y, Teng L, Sun F, Li Y Tags: Eur J Pharm Biopharm Source Type: research

Lipidoid-Polymer Hybrid Nanoparticles Loaded with TNF siRNA Suppress Inflammation after Intra-articular Administration in a Murine Experimental Arthritis Model.
Abstract Rheumatoid arthritis (RA) is a common autoimmune disease, which is characterized by painful chronic inflammation in the joints, and novel safe and efficacious treatments are urgently needed. RNA interference (RNAi) therapy based on small interfering RNA (siRNA) is a promising approach for silencing specific genes involved in inflammation. However, delivery of siRNA to the target site, i.e. the cytosol of immune cells, is a challenge. Here, we designed lipid-polymer hybrid nanoparticles (LPNs) composed of lipidoid and poly(DL-lactic-co-glycolic acid) loaded with a therapeutic cargo siRNA directed against t...
Source: European Journal of Pharmaceutics and Biopharmaceutics - June 10, 2019 Category: Drugs & Pharmacology Authors: Jansen MAA, Klausen LH, Thanki K, Lyngsø J, Skov Pedersen J, Franzyk H, Nielsen HM, van Eden W, Dong M, Broere F, Foged C, Zeng X Tags: Eur J Pharm Biopharm Source Type: research

Auranofin, an Anti-rheumatic Gold Drug, Aggravates the Radiation-Induced Acute Intestinal Injury in Mice
Conclusion In this study, we found that a non-toxic dose of auranofin significantly aggravated the severity of the radiation-induced intestinal injury. This suggests that auranofin treatment can be an independent factor that influences the risk of intestinal complications after pelvic or abdominal radiotherapy. Ethics Statement All the protocols used in this study were approved by the Institutional Animal Care and Use Committee of the Korean Institute of Radiological and Medical Sciences (IACUC permit number: KIRAMS217-0007). Author Contributions H-JL, JS, and Y-BL designed the experiments. EL and JK conducted the exp...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Oligonucleotides —A Novel Promising Therapeutic Option for IBD
Conclusions In this review, we focused on recent and past approaches to test the therapeutic efficacy of oligonucleotide based therapies in IBD. The combining mechanistic mode of oligonucleotide based therapeutics is a targeted action on specific pro-inflammatory molecules, which are over activated in IBD patients and contribute significantly to disease pathogenesis. The proposed high selectivity of the agents is derived from its mode of action, that aims to specifically block certain inflammatory molecular patterns, without a general systemic effect on other molecular targets. It would be important for each oligonucleot...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Plant-Derived Alkaloids: The Promising Disease-Modifying Agents for Inflammatory Bowel Disease
Conclusion This paper summarizes the current findings regarding the anti-colitis activity of plant-derived alkaloids and shows how these alkaloids exhibit significant and beneficial effects in alleviating colonic inflammation. These natural alkaloids are not only promising agents for IBD treatment but are also components for developing new wonder drugs. However, the underlying molecular mechanisms or toxicological evaluation of most plant-derived alkaloids still require much scientific research, and their actual efficacies for IBD patients have not been verified well in field research. Thus, further clinical trials to elu...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Notch-1 siRNA and Methotrexate towards a Multifunctional Approach in Rhematoid Arthritis Management: a Nanomedicine Approach
ConclusionsOverall, nanomedicine-based delivery of MTX and siRNA could overcome the side effects of small molecules and could improve the therapeutic effect of siRNA in rheumatoid arthritis.
Source: Pharmaceutical Research - April 20, 2018 Category: Drugs & Pharmacology Source Type: research