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Pterostilbene, A Bioactive Component of Blueberries, Alleviates Renal Interstitial Fibrosis by Inhibiting Macrophage-Myofibroblast Transition.
In this study, we investigated the antifibrotic effects of PTB on the in vivo mouse unilateral ureteral obstruction (UUO) model and in vitro MMT cells. Kidneys subjected to UUO with PTB treatment were collected for the investigation of PTB mediating MMT derived renal interstitial fibrosis. We conducted kidney RNA-seq transcriptomes and TGF-[Formula: see text]1-induced bone marrow-derived macrophages assays to determine the mechanisms of PTB. We found that PTB treatment suppressed the interstitial fibrosis in UUO mice. PTB also attenuated the number of MMT cells in vivo and in vitro. The transcriptomic analysis showed that ...
Source: The American Journal of Chinese Medicine - November 5, 2020 Category: Complementary Medicine Authors: Feng Y, Guo F, Mai H, Liu J, Xia Z, Zhu G, Zhang J, Ma L, Fu P Tags: Am J Chin Med Source Type: research

Quercetin facilitates cell death and chemosensitivity through RAGE/PI3K/AKT/mTOR axis in human pancreatic cancer cells
In conclusion, the results demonstrated that the molecular mechanisms of quercetin in regulating apoptosis and autophagy-related pathways and increasing GEM chemosensitivity in pancreatic cancer cells involved inhibition of RAGE expression.Graphical abstractThis diagram illustrated that quercetin treatment effectively attenuated RAGE expression to facilitate autophagy, apoptosis, and GEM chemosensitivity in MIA Paca-2 and MIA Paca-2 GEMR cells.
Source: Journal of Food and Drug Analysis - August 22, 2019 Category: Food Science Source Type: research

Resveratrol Promotes Diabetic Wound Healing via SIRT1-FOXO1-c-Myc Signaling Pathway-Mediated Angiogenesis
Conclusion: Our findings indicate that the positive role of RES in diabetic wound healing via its SIRT1-dependent endothelial protection and pro-angiogenic effects involves the inhibition of FOXO1 and the de-repression of c-Myc expression. Introduction Diabetes mellitus is a metabolic disease with an increasing incidence worldwide (Zimmet et al., 2014). The disease often leads to the development of serious complications such as microangiopathy, mainly including retinopathy, nephropathy, neuropathy, and diabetic non-healing skin ulcers (Zheng et al., 2018). Diabetic non-healing skin ulcers such as foot ulcers are ca...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Resveratrol Attenuates the Cytotoxicity Induced by Amyloid- β1-42 in PC12 Cells by Upregulating Heme Oxygenase-1 via the PI3K/Akt/Nrf2 Pathway.
Resveratrol Attenuates the Cytotoxicity Induced by Amyloid-β1-42 in PC12 Cells by Upregulating Heme Oxygenase-1 via the PI3K/Akt/Nrf2 Pathway. Neurochem Res. 2017 Oct 31;: Authors: Hui Y, Chengyong T, Cheng L, Haixia H, Yuanda Z, Weihua Y Abstract Oxidative stress and cytotoxic damage induced by amyloid beta (Aβ) have been considered pivotal in the pathogenesis of Alzheimer's disease (AD) and may represent a target for treatment. The phosphatidylinositol 3-kinase (PI3K)/Akt pathway elicits a survival signal to protect against multiple injuries, and the transcription factor nuclear factor erythroid 2...
Source: Neurochemical Research - October 31, 2017 Category: Neuroscience Authors: Hui Y, Chengyong T, Cheng L, Haixia H, Yuanda Z, Weihua Y Tags: Neurochem Res Source Type: research

Naringenin ameliorates hypoxia/reoxygenation-induced endoplasmic reticulum stress-mediated apoptosis in H9c2 myocardial cells: involvement in ATF6, IRE1 α and PERK signaling activation.
In conclusion, these results confirmed that ER stress-mediated apoptosis contributes to the protection effects of naringenin against H/R injury, which is potentially involved in ATF6, IRE1α and PERK signaling activation. PMID: 27785700 [PubMed - as supplied by publisher]
Source: Molecular and Cellular Biochemistry - October 25, 2016 Category: Biochemistry Authors: Tang JY, Jin P, He Q, Lu LH, Ma JP, Gao WL, Bai HP, Yang J Tags: Mol Cell Biochem Source Type: research

Abstract B17: Epigenetic regulation of NOTCH oncogenic signaling in breast cancer
Alterations in DNA methylation occur at different stages of cancer, including initiation, and may underlie up-regulation of genes with oncogenic functions. The NOTCH pathway is often overactive in breast cancer and plays roles in cancer development and progression. It is therefore a possible target for anti-cancer strategies. However, the mechanisms of NOTCH regulation in mammary carcinogenesis remain unclear which hinders the development of effective approaches to target this oncogenic pathway. Interestingly, certain dietary compounds such as polyphenols with a stilbenoid structure suppress the NOTCH signals in cancer and...
Source: Cancer Research - January 14, 2016 Category: Cancer & Oncology Authors: Lubecka, K., Kurzava, L., Flower, K., Buvala, H., Teegarden, D., Camarillo, I., Flanagan, J. M., Stefanska, B. Tags: Cancer Genomics and Epigenomics Source Type: research

Upregulation of Death Receptor 5 and Production of Reactive Oxygen Species Mediate Sensitization of PC-3 Prostate Cancer Cells to TRAIL Induced Apoptosis by Vitisin A
Conclusion: These findings provide evidence that Vitisin A can be used in conjunction with TRAIL as a potent TRAIL sensitizer for synergistic apoptosis induction via upregulation of DR5 and production of ROS in prostate cancer cells.Cell Physiol Biochem 2015;36:1151-1162
Source: Cellular Physiology and Biochemistry - June 25, 2015 Category: Cytology Source Type: research

Resveratrol attenuates methylglyoxal-induced mitochondrial dysfunction and apoptosis by Sestrin2 induction.
This study investigated whether resveratrol protects cells from the methylglyoxal-induced toxicity via SESN2 induction. Methylglyoxal significantly induced cell death in HepG2 cells. However, cells pretreated with resveratrol were rescued from methylglyoxal-induced apoptosis. Resveratrol attenuated glutathione (GSH) depletion and ROS production promoted by methylglyoxal. Moreover, mitochondrial damage was observed by methylglyoxal treatment, but resveratrol restored mitochondrial function, as evidenced by the observed lack of mitochondrial permeability transition and increased ADP/ATP ratio. Resveratrol treatment inhibited...
Source: Toxicology and Applied Pharmacology - August 20, 2014 Category: Toxicology Authors: Seo K, Seo S, Han JY, Ki SH, Shin SM Tags: Toxicol Appl Pharmacol Source Type: research