scholarly journals Winyanghuayin Decoction and Xiaoqinglong Decoction Treatment Airway Inflammation of Cold Asthma Through PI3K-mTOR Signal Pathway

2020 ◽  
Author(s):  
xing chang ◽  
Zhang Lu ◽  
Zhang Qingxiang ◽  
tian Zhang ◽  
qingyan meng ◽  
...  

Abstract Background: Airway inflammation plays a pivotal role in cold asthma. Winyanghuayin decoction and Xiaoqinglong decoction can significantly improve airway inflammation. The aim of the present study was to explore the therapeutic effect and mechanism of Winyanghuayin decoction and Xiaoqinglong decoction on OVA-induced cold asthma in rat and compare the effects of Winyanghuayin decoction and Xiaoqinglong decoction for treatment of cold asthma ratsMethods: The cold asthma rat model was induced by OVA and ice water swim stress, treated with Winyanghuayin decoction and Xiaoqinglong decoction respectively. The pulmonary function of asthmatic rats was detected by MIR Spirolab; The pathological changes of lung tissue were observed by HE staining; The autophagy in the lung of rats were observed by transmission electron microscopy; The eosinophils, lymphocytes, macrophages and total cells in bronchoalveolar lavage fluid (BALF) were counted under light microscope. The expression of IL-10\IL-13\TNF-α and TGF-β1 in serum were measured by enzyme-linked immunosorbent assay (ELISA); The protein level of LC3-II\I, ATG, PI3K and mTOR expression in lung tissues were detected by Western blot; Real-time polymerase chain reaction (RT-PCR) detected the expression of autophagy gene ATG3\ATG5\ATG7 and ATG12.Results: Winyanghuayin decoction and Xiaoqinglong decoction can alleviate airway inflammation and improve airway hyper-responsiveness, significantly increased the level of autophagy in lung tissue and decreased the protein level of PI3K and mTOR in lung tissue of cold asthma rats. Winyanghuayin decoction have better regulation ability on autophagy and PI3K-mTOR signaling pathway.Conclusion: Winyanghuayin decoction and Xiaoqinglong decoction may alleviate the airway inflammation symptoms by enhancing autophagy in lung tissue dependent on the PI3K-mTOR signaling pathway. Winyanghuayin decoction was more effective than Xiaoqinglong decoction for treatment of cold asthma.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Zihao Li ◽  
Ziyu Huang ◽  
He Zhang ◽  
Jinghan Lu ◽  
Yicheng Tian ◽  
...  

AbstractInstability and excessive use of the knee joint can cause osteoarthritis (OA). Reasonable exercise can enhance the stability of the knee joint and prevent and relieve the occurrence and development of OA. As a key switch for inflammation, P2X purinoceptor 7 (P2X7) has attracted much attention in studies of OA. Exercise can regulate P2X7 expression and activation. However, the role of P2X7 in exercise-based prevention and treatment of OA is unknown. We previously showed that moderate-intensity exercise can significantly alleviate OA symptoms. Accordingly, in this study, we evaluated the effects of exercise on P2X7 expression and activation in chondrocytes. Micro-computed tomography, hematoxylin, and eosin staining, Toluidine Blue O staining, immunohistochemistry, and terminal deoxynucleotidyl transferase dUTP nick-end labeling experiments showed that P2X7 expression was lower in the moderate-intensity exercise group than in the inflammation and low- and high-intensity exercise groups. Additionally, chondrocyte death, cartilage destruction, and the degree and severity of pyroptosis were significantly reduced, whereas autophagy levels were significantly increased in the moderate-intensity exercise group. Cell Counting Kit-8 assay, lactate dehydrogenase release, flow cytometry, enzyme-linked immunosorbent assay, cell fluorescence, western blot, reverse transcription-quantitative polymerase chain reaction, and transmission electron microscopy experiments showed that moderate activation of P2X7 promoted autophagy through the AMP-activated protein kinase (AMPK)/mammalian target of rapamycin (mTOR) signaling pathway and promoted autolysosome targeting for degradation of the inflammasome component NLRP3, thereby inhibiting pyroptosis. Additionally, the use of AMPK and mTOR activators and inhibitors indicated that the AMPK-mTOR signaling pathway, as the downstream of P2X7, played a key role in delaying the occurrence and development of OA. We propose that moderate-intensity exercise promoted chondrocyte autophagy through the P2X7/AMPK/mTOR signal axis to alleviate pyroptosis. Our findings provide novel insights into the positive and preventative effects of exercise on OA.


2020 ◽  
Author(s):  
Minfen Zhang ◽  
Hui Chen ◽  
Ping Qin ◽  
Tonghui Cai ◽  
Lingjun Li ◽  
...  

2020 ◽  
Vol 27 ◽  
Author(s):  
Naser-Aldin Lashgari ◽  
Nazanin Momeni Roudsari ◽  
Saeideh Momtaz ◽  
Negar Ghanaatian ◽  
Parichehr Kohansal ◽  
...  

: Inflammatory bowel disease (IBD) is a general term for a group of chronic and progressive disorders. Several cellular and biomolecular pathways are implicated in the pathogenesis of IBD, yet the etiology is unclear. Activation of the mammalian target of rapamycin (mTOR) pathway in the intestinal epithelial cells was also shown to induce inflammation. This review focuses on the inhibition of the mTOR signaling pathway and its potential application in treating IBD. We also provide an overview on plant-derived compounds that are beneficial for the IBD management through modulation of the mTOR pathway. Data were extracted from clinical, in vitro and in vivo studies published in English between 1995 and May 2019, which were collected from PubMed, Google Scholar, Scopus and Cochrane library databases. Results of various studies implied that inhibition of the mTOR signaling pathway downregulates the inflammatory processes and cytokines involved in IBD. In this context, a number of natural products might reverse the pathological features of the disease. Furthermore, mTOR provides a novel drug target for IBD. Comprehensive clinical studies are required to confirm the efficacy of mTOR inhibitors in treating IBD.


2020 ◽  
Vol 19 (3) ◽  
pp. 165-173
Author(s):  
Xiaowei Zhang ◽  
Yuanbo Liu

Primary Central Nervous System Lymphoma (PCNSL) is a rare invasive extranodal non- Hodgkin lymphoma, a vast majority of which is Diffuse Large B-Cell Lymphoma (DLBCL). Although high-dose methotrexate-based immunochemotherapy achieves a high remission rate, the risk of relapse and related death remains a crucial obstruction to long-term survival. Novel agents for the treatment of lymphatic malignancies have significantly broadened the horizons of therapeutic options for PCNSL. The PI3K/AKT/mTOR signaling pathway is one of the most important pathways for Bcell malignancy growth and survival. Novel therapies that target key components of this pathway have shown antitumor effects in many B-cell malignancies, including DLBCL. This review will discuss the aberrant status of the PI3K/AKT/mTOR signaling pathways in PCNSL and the application prospects of inhibitors in hopes of providing alternative clinical therapeutic strategies and improving prognosis.


2019 ◽  
Vol 19 (5) ◽  
pp. 622-631 ◽  
Author(s):  
Ya Liu ◽  
Jian Kang ◽  
Hong Gao ◽  
Xiyu Zhang ◽  
Jun Chao ◽  
...  

Background: Type 2 Diabetes Mellitus (T2DM) is a world-wide metabolic disease with no cure from drugs and treatment. In China, The Traditional Chinese Medicine (TCM) herbal formulations have been used to treat T2DM for centuries. Methods: In this study, we proposed a formula called ShenQi Compound (SQC), which has been used in clinical therapeutics in China for several years. We evaluated the effect of SQC in a spontaneous diabetic rat model (GK rats) by detecting a series of blood indicators and performing histological observations. Meanwhile, the gene microarray and RT-qPCR experiments were used to explore the molecular mechanism of SQC treatment. In addition, western medicine, sitagliptin was employed as a comparison. Results: The results indicated that SQC and sitagliptin could effectively improve the serum lipid (blood Total Cholesterol (TC) and blood Triglycerides (TG)), hormone levels (serum insulin (INS), Glucagon (GC) and Glucagon-Like Peptide-1 (GLP-1)), alleviated the inflammatory response (hypersensitive C-Reactive Protein (hsCRP)), blood glucose fluctuation (Mean Blood Glucose (MBG), standard deviation of blood glucose (SDBG) and Largest Amplitude of plasma Glucose Excursions (LAGE)), pancreatic tissue damage and vascular injury for T2DM. Compared with sitagliptin, SQC achieved a better effect on blood glucose fluctuation (p<0.01). Meanwhile, the gene microarray and RT-qPCR experiments indicated that SQC and sitagliptin may improve the T2DM through affecting the biological functions related to apoptosis and circadian rhythm. Moreover, SQC might be able to influence the mTOR signaling pathway by regulating Pik3r1, Ddit4 expression. Conclusion: All these results indicate that SQC is an effective therapeutic drug on T2DM. Notably, SQC presents an obvious blood glucose fluctuation-preventing ability, which might be derived from the regulation of the mTOR signaling pathway.


2020 ◽  
Vol 130 (6) ◽  
pp. 621-630 ◽  
Author(s):  
Yuan Wang ◽  
MingMing Zhao ◽  
Lv Shang ◽  
Yanguo Zhang ◽  
Conggang Huang ◽  
...  

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