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Total 766 results found since Jan 2013.

Codelivery of DOX and siRNA by folate-biotin-quaternized starch nanoparticles for promoting synergistic suppression of human lung cancer cells.
Authors: Li L, He S, Yu L, Elshazly EH, Wang H, Chen K, Zhang S, Ke L, Gong R Abstract In this paper, the self-assembled folate-biotin-quaternized starch nanoparticles (FBqS NPs) were used as carrier system of doxorubicin (DOX) and siRNAIGF1R for the codelivery of both into human lung adenocarcinoma cell lines (A549 cells) in vitro. The cytotoxicity, targeted ligand competition, cell proliferation inhibition, cellular uptake, endocytosis mechanism and target protein suppression of drug-loaded FBqS NPs were evaluated in detail. Compared with several other drug formulations under same condition, siRNAIGF1R/DOX/FBqS N...
Source: Drug Delivery - April 30, 2019 Category: Drugs & Pharmacology Tags: Drug Deliv Source Type: research

Nanoparticles of VAV1 siRNA combined with LL37 peptide for the treatment of pancreatic cancer
J Control Release. 2023 Feb 1:S0168-3659(23)00093-7. doi: 10.1016/j.jconrel.2023.01.084. Online ahead of print.ABSTRACTPancreatic ductal adenocarcinoma (PDAC) is among the leading causes of cancer-related death, and it is highly resistant to therapy owing to its unique extracellular matrix. VAV1 protein, overexpressed in several cancer diseases including pancreatic cancer (PC), increases tumor proliferation and enhances metastases formation, which are associated with decreased survival. We hypothesized that an additive anti-tumor effect could be obtained by co-encapsulating in PLGA nanoparticles (NPs), the negatively charg...
Source: Cancer Control - February 3, 2023 Category: Cancer & Oncology Authors: Majd Agbaria Doaa Jbara-Agbaria Etty Grad Meital Ben David-Naim Gil Aizik Gershon Golomb Source Type: research

Inhibition of SMYD2 Sensitized Cisplatin to Resistant Cells in NSCLC Through Activating p53 Pathway
In conclusion, the present study elucidated that the activity of SMYD2 in NSCLC may affect the cell sensitivity to chemotherapeutic agents, especially to CDDP. The elevated SMYD2 mediated CDDP resistance and malignant phenotype in NSCLC, indicating that SMYD2 may be a useful biomarker of CDDP resistance in NSCLC. Inhibition of SMYD2 contributes to the methylation-related activation of p53 and thus results in cell apoptosis. Furthermore, combination treatment with CDDP and an SMYD2 inhibitor had a synergistically antitumor effects in a xenograft model in vivo. Given that SMYD2 has reversible effects and is a targetable prot...
Source: Frontiers in Oncology - April 25, 2019 Category: Cancer & Oncology Source Type: research

Title: Genistein Disrupts Glucocorticoid Receptor Signaling in Human Uterine Endometrial Ishikawa Cells
Conclusions: Using Ishikawa cells, we observed that exposure to genistein resulted in distinct changes in gene expression and unique differences in the GR transcriptome. Citation: Whirledge S, Senbanjo LT, Cidlowski JA. 2015. Genistein disrupts glucocorticoid receptor signaling in human uterine endometrial Ishikawa cells. Environ Health Perspect 123:80–87; http://dx.doi.org/10.1289/ehp.1408437 Address correspondence to J.A. Cidlowski, NIH/NIEHS, MD F3-07, P.O. Box 12233, Research Triangle Park, NC 27709 USA. Telephone: (919) 541-1564. E-mail: cidlows1@niehs.nih.gov We thank X. Xu (Integrative Bioinformatic...
Source: EHP Research - December 31, 2014 Category: Environmental Health Authors: Web Admin Tags: Research Article January 2015 Source Type: research

Abstract B47: Therapeutic KRAS silencing in lung and colon cancer models
This study highlights the potential translational impact of therapeutic RNA interference, which may have broad applications in oncology, especially for traditional "undruggable" targets.Citation Format: Chad Pecot, Sherry Wu, Seth Bellister, Rajat Bhattacharya, Anshumaan Maharaj, Cristian Rodriguez-Aguayo, Vianey Gonzalez-Villasana, Rajesha Rupaimoole, Gabriel Lopez-Berestein, Lee M. Ellis, Anil Sood. Therapeutic KRAS silencing in lung and colon cancer models. [abstract]. In: Proceedings of the AACR Special Conference on RAS Oncogenes: From Biology to Therapy; Feb 24-27, 2014; Lake Buena Vista, FL. Philadelphia (PA): AACR;...
Source: Molecular Cancer Research - February 5, 2015 Category: Cancer & Oncology Authors: Pecot, C., Wu, S., Bellister, S., Bhattacharya, R., Maharaj, A., Rodriguez-Aguayo, C., Gonzalez-Villasana, V., Rupaimoole, R., Lopez-Berestein, G., Ellis, L. M., Sood, A. Tags: RAS Targeting: Poster Presentations - Proffered Abstracts Source Type: research

Endothelial Cell-Derived TGF- β Promotes Epithelial-Mesenchymal Transition via CD133 in HBx-Infected Hepatoma Cells
Conclusion: The study indicates that secretory factors like TGF-β from neighboring endothelial cells may enhance expression of CD133 and impart an aggressive EMT phenotype to HBx-infected hepatoma cells in HBV induced HCC. Introduction Hepatocellular Carcinoma (HCC) is one of the most common cancer worldwide, representing approximately 4% of all malignancies (1). It has been estimated that more than 50% of HCC cases in the world are associated with hepatitis B virus (HBV) (2). HBV is a partially double stranded DNA virus belonging to the Hepadnavirus family. The HBV genome is 3.2 kb in size and contains fou...
Source: Frontiers in Oncology - April 23, 2019 Category: Cancer & Oncology Source Type: research

LncRNA MALAT1 inhibits osteogenic differentiation of mesenchymal stem cells in osteoporosis rats through MAPK signaling pathway.
CONCLUSIONS: LncRNA MALAT1 was lowly expressed in OP rats. Moreover, it inhibited osteogenic differentiation of BMSCs by enhancing the activation of the MAPK signaling pathway, thereby promoting OP progression. PMID: 31210287 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - June 20, 2019 Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research

Genetic Regulation of Liver Metabolites and Transcripts Linking to Biochemical-Clinical Parameters
Conclusion In summary, this study is the first to combine metabolomics, transcriptomics, and genome-wide association studies in a porcine model. Our results improve understanding of the genetic regulation of metabolites which link to transcripts and finally biochemical-clinical parameters. Further, high-performance profiling of metabolites as intermediate phenotypes is a potentially powerful approach to uncover how genetic variation affects metabolic and health status. Our results advance knowledge in areas of biomedical and agricultural interest and identify potential correlates of biomarkers, SNPs-metabolites, SNPs-tran...
Source: Frontiers in Genetics - April 16, 2019 Category: Genetics & Stem Cells Source Type: research

Effects of lncRNA MALAT1-mediated β-catenin signaling pathway on myocardial cell apoptosis in rats with myocardial ischemia/reperfusion injury.
CONCLUSIONS: MALAT1 knockdown can significantly ameliorate the I/R-induced myocardial injury and improve the cardiac function of the rats, whose mechanism is probably correlated with the inhibition of MALAT1 siRNA on β-catenin. Therefore, MALAT1 siRNA is expected to become a new target for the treatment of myocardial infarction. PMID: 31773707 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - November 28, 2019 Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research

Abstract 1131: Snail- and ERK2-dependent signaling enhances breast cancer cell resistance to hydroxytamoxifen
Snail transcription factor and MAPK/ERK signaling regulate EMT and chemotherapy resistance in various tumor models by binding to target promoters (i.e., E-cadherin, maspin, ER-α). ERK1 is expressed during embryogenesis and in non-metastatic cells; ERK2 is implicated during vasculogenesis and promotes stem cell phenotype in triple negative breast cancer. Nuclear-localized ERK is associated with more active and potentially metastatic breast and ovarian carcinoma cells; cytoplasmic-localized ERK is a good prognostic factor. The role that Snail plays during the transition from cytoplasmic ERK1 to nuclear ERK2 has not been inv...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Smith, B. N., Nagappan, P., Taliaferro-Smith, L., Mezencev, R., Yates, C., Hinton, C., Odero-Marah, V. Tags: Tumor Biology Source Type: research

LncRNA MALAT1 knockdown alleviates myocardial apoptosis in rats with myocardial ischemia-reperfusion through activating PI3K/AKT signaling pathway.
CONCLUSIONS: The MALAT1 knockdown can markedly improve the I/R-induced myocardial injury and promote the cardiac function of rats, whose mechanism may be related to the activation of the AKT signaling pathway by MALAT1 siRNA. Therefore, lncRNA MALAT1 is expected to be a new therapeutic target for myocardial I/R injury. PMID: 31841208 [PubMed - in process]
Source: European Review for Medical and Pharmacological Sciences - December 18, 2019 Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research

Silencing PCBP2 normalizes desmoplastic stroma and improves the antitumor activity of chemotherapy in pancreatic cancer
Conclusion: This approach provides a new therapeutic avenue to improve the antitumor efficacy of PDAC therapies by normalizing tumor stroma using the PCBP2 siRNA nanocomplex.
Source: Theranostics - January 15, 2021 Category: Molecular Biology Authors: Yuanke Li, Zhen Zhao, Chien-Yu Lin, Yanli Liu, Kevin F. Staveley-OCarroll, Guangfu Li, Kun Cheng Tags: Research Paper Source Type: research

Sanguinarine Induces Apoptosis Pathway in Multiple Myeloma Cell Lines via Inhibition of the JaK2/STAT3 Signaling
In this study, we aimed to investigate the potential anti-proliferative and pro-apoptotic activities of SNG in a panel of MM cell lines (U266, IM9, MM1S, and RPMI-8226). SNG treatment of MM cells resulted in a dose-dependent decrease in cell viability through mitochondrial membrane potential loss and activation of caspase 3, 9, and cleavage of PARP. Pre-treatment of MM cells with a universal caspase inhibitor, Z-VAD-FMK, prevented SNG mediated loss of cell viability, apoptosis, and caspase activation, confirming that SNG-mediated apoptosis is caspase-dependent. The SNG-mediated apoptosis appears to be resulted from suppres...
Source: Frontiers in Oncology - April 16, 2019 Category: Cancer & Oncology Source Type: research

Osteopontin silencing attenuates bleomycin-induced murine pulmonary fibrosis by regulating epithelial-mesenchymal transition
In this study, we knocked down OPN in a bleomycin (BLM)-induced pulmonary fibrosis (PF) mouse model using small interfering RNA (siRNA) to determine whether the use of OPN siRNA is an effective therapeutic strategy for IPF. We found that fibrosing areas were significantly smaller in specimens from OPN siRNA-treated mice. The number of alveolar macrophages, neutrophils, and lymphocytes in bronchoalveolar lavage fluid was also reduced in OPN siRNA-treated mice. Regarding the expression of epithelial-mesenchymal transition (EMT)-related proteins, the administration of OPN-siRNA to BLM-treated mice upregulated E-cadherin expre...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - July 10, 2021 Category: Drugs & Pharmacology Authors: Omer Faruk Hatipoglu Eyyup Uctepe Gabriel Opoku Hidenori Wake Kentaro Ikemura Takashi Ohtsuki Junko Inagaki Mehmet Gunduz Esra Gunduz Shogo Watanabe Takashi Nishinaka Hideo Takahashi Satoshi Hirohata Source Type: research