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Current advancements in self-assembling nanocarriers-based siRNA delivery for cancer therapy
Colloids Surf B Biointerfaces. 2022 Nov 2;221:113002. doi: 10.1016/j.colsurfb.2022.113002. Online ahead of print.ABSTRACTDifferent therapeutic practices for treating cancers have significantly evolved to compensate and/or overcome the failures in conventional methodologies. The demonstrated potentiality in completely inhibiting the tumors and in preventing cancer relapse has made nucleic acids therapy (NAT)/gene therapy as an attractive practice. This has been made possible because NAT-based cancer treatments are highly focused on the fundamental mechanisms - i.e., silencing the expression of oncogenic genes responsible fo...
Source: Colloids and Surfaces - November 12, 2022 Category: Biotechnology Authors: Ganeshlenin Kandasamy Dipak Maity Source Type: research

Inhibition of lipogenesis and induction of apoptosis by valproic acid in prostate cancer cells via the C/EBP α/SREBP-1 pathway.
In this study, we aimed to investigate the effects and mechanisms of VPA on cell viability, lipogenesis, and apoptosis in human prostate cancer PC-3 and LNCaP cells. The results showed that VPA significantly reduced lipid accumulation and induced apoptosis of PC-3 and LNCaP cells. Moreover, the expression of CCAAT/enhancer-binding protein α (C/EBPα), as well as sterol regulatory element-binding protein 1 (SREBP-1) and its downstream effectors, including fatty acid synthase (FASN), acetyl CoA carboxylase 1 (ACC1), and anti-apoptotic B-cell lymphoma 2 (Bcl-2), was markedly decreased in PC-3 and LNCaP cells after VPA admini...
Source: Acta Biochimica et Biophysica Sinica - January 20, 2021 Category: Biochemistry Authors: Pang BO, Zhang J, Zhang XI, Yuan J, Shi Y, Qiao L Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research

pH-responsive DNA nanomicelles for chemo-gene synergetic therapy of anaplastic large cell lymphoma
Conclusion: DNMs co-loaded with Dox and ALK-specific siRNA exhibited significantly enhanced apoptosis of ALCL K299 cells in vitro and effectively inhibited tumor growth in vivo without obvious toxicity, providing a potential strategy in the development of nanomedicines for synergetic cancer therapy.
Source: Theranostics - October 3, 2020 Category: Molecular Biology Authors: Yuwei Li, Shuzhen Yue, Jingyu Cao, Chengzhan Zhu, Yixiu Wang, Xin Hai, Weiling Song, Sai Bi Tags: Research Paper Source Type: research

PGC1 β Regulates Breast Tumor Growth and Metastasis by SREBP1-Mediated HKDC1 Expression
Conclusions: PGC1β regulates breast cancer tumor growth and metastasis by SREBP1-mediated HKDC1 expression. This provides a novel therapeutic strategy through targeting the PGC1β/HKDC1 signaling pathway for breast cancer treatment. Introduction Breast cancer is a very common cancer with significant premature mortality in women. Around 12% of women in USA will have chance to be diagnosed with breast cancer during their lifetimes (1, 2). The development of breast cancer is regulated by many factors, and even as average survival rates have increased significantly as a result of many advanced treatments...
Source: Frontiers in Oncology - April 16, 2019 Category: Cancer & Oncology Source Type: research

Connecting Metainflammation and Neuroinflammation Through the PTN-MK-RPTP β/ζ Axis: Relevance in Therapeutic Development
Conclusion The expression of the components of the PTN-MK-RPTPβ/ζ axis in immune cells and in inflammatory diseases suggests important roles for this axis in inflammation. Pleiotrophin has been recently identified as a limiting factor of metainflammation, a chronic pathological state that contributes to neuroinflammation and neurodegeneration. Pleiotrophin also seems to potentiate acute neuroinflammation independently of the inflammatory stimulus while MK seems to play different -even opposite- roles in acute neuroinflammation depending on the stimulus. Which are the functions of MK and PTN in chronic neuroi...
Source: Frontiers in Pharmacology - April 11, 2019 Category: Drugs & Pharmacology Source Type: research

Complement C5b-9 and Cancer: Mechanisms of Cell Damage, Cancer Counteractions, and Approaches for Intervention
In conclusion, osmotic burst of inflated complement-damaged cells may occur, but these bursts are most likely a consequence of metabolic collapse of the cell rather than the cause of cell death. The Complement Cell Death Mediator: A Concerted Action of Toxic Moieties Membrane pores caused by complement were first visualized by electron microscopy on red blood cell membranes as large ring structures (22). Similar lesions were viewed on E. coli cell walls (23). Over the years, ample information on the fine ultrastructure of the MAC that can activate cell death has been gathered (24) and has been recently further examined (...
Source: Frontiers in Immunology - April 9, 2019 Category: Allergy & Immunology Source Type: research

PEGylated siRNA lipoplexes for silencing of BLIMP-1 in Primary Effusion Lymphoma: In vitro evidences of antitumoral activity.
In this study we aim to develop pegylated siRNA lipoplexes formed using the cationic lipid DOTAP and DSPE-PEG2000, capable to effectively stabilize anti Blimp-1 siRNA and suitable for systemic administration. Two types of pegylated lipoplexes using a classic (C-PEG Lipoplexes) or a post-pegylation method (P-PEG-Lipoplexes) were formulated and compared in their physicochemical properties (size, zeta potential, morphology and structure) and efficiency on PEL cell lines. A stable siRNAs protection was obtained with post pegylation approach (2% molar of DSPE-PEG2000 respect to lipid) resulting in structures with diameters of 3...
Source: European Journal of Pharmaceutics and Biopharmaceutics - November 25, 2015 Category: Drugs & Pharmacology Authors: Belletti D, Tosi G, Forni F, Lagreca I, Barozzi P, Pederzoli F, Vandelli MA, Riva G, Luppi M, Ruozi B Tags: Eur J Pharm Biopharm Source Type: research

Enhancement of Paclitaxel-induced breast cancer cell death via the Glycogen Synthesis Kinase-3β-mediated B-cell lymphoma 2 regulation.
Abstract Glycogen synthase kinase-3β (GSK-3β) is a serine/threonine protein kinase that is known to mediate cancer cell death. Here, we show that B-cell lymphoma 2 (Bcl-2), an anti-apoptotic protein, is regulated by GSK-3β and that GSK-3β-mediated regulation of Bcl-2 is crucial for mitochondrial-dependent cell death in paclitaxel-stimulated cells. We demonstrate that MCF7 GSK-3β siRNA cells are more sensitive to cell death than MCF7 GFP control cells and that in the absence of GSK-3β, Bcl-2 levels are reduced, a result enhanced by paclitaxel. Paclitaxel-induced JNK (c-Jun N-terminal kinase) activation is cri...
Source: BMB Reports - August 7, 2015 Category: Biochemistry Authors: Noh KT, Cha GS, Kang TH, Cho J, Jung ID, Kim KY, Ahn SC, You JC, Park YM Tags: BMB Rep Source Type: research

The miR-15 Family Enhances the Radiosensitivity of Breast Cancer Cells by Targeting G2 Checkpoints.
Abstract Enhancing radiosensitivity is an important area of investigation for improving breast cancer therapy outcomes. The aim of this study was to assess the role of the miR-15 family in the radiosensitivity of breast cancer cells. MicroRNAs (miRNAs) encoded by the miR-15 cluster are known to induce G1 arrest and apoptosis by targeting G1 checkpoints and the anti-apoptotic B cell lymphoma 2 (BCL-2) gene. However, the effect of the miR-15 family on G2/M arrest and radiosensitivity remains poorly understood. In the current study, cells transfected with miR-15a/15b/16 mimic or inhibitor were irradiated and examined...
Source: Radiation Research - January 16, 2015 Category: Physics Authors: Mei Z, Su T, Ye J, Yang C, Zhang S, Xie C Tags: Radiat Res Source Type: research

Histone deacetylases inhibitor trichostatin A increases the expression of Dleu2/miR-15a/16-1 via HDAC3 in non-small cell lung cancer.
Abstract Histone deacetylases (HDACs) inhibitor is a promising new approach to the treatment of lung cancer therapy via inhibiting cell growth and inducing apoptosis. miR-15a and miR-16-1 are important tumor suppressors through modulating B cell lymphoma 2 (Bcl-2), Cyclin D1, D2, and others. However, whether HDACs inhibitor modulates the expression of miR-15a/16-1 in lung cancer is still unknown. The purpose of our study was to identify a new miRNA-mediated mechanism which plays an important role in the anti-cancer effects of HDACs inhibitor. We found HDACs inhibitors trichostatin A (TSA) and sodium butyrate upreg...
Source: Molecular and Cellular Biochemistry - July 19, 2013 Category: Biochemistry Authors: Chen CQ, Chen CS, Chen JJ, Zhou LP, Xu HL, Jin WW, Wu JB, Gao SM Tags: Mol Cell Biochem Source Type: research

Targeting the IL‐4/IL‐13 signaling pathway sensitizes Hodgkin lymphoma cells to chemotherapeutic drugs
This study also suggests that combination of classical chemotherapeutic drugs with the IL‐4/IL‐13 antagonists may enhance efficacy and reduce risks of toxicity from high dose of drugs in HL treatment. © 2013 Wiley Periodicals, Inc.
Source: International Journal of Cancer - April 1, 2013 Category: Cancer & Oncology Authors: Antonino Natoli, Regine Lüpertz, Christian Merz,, Wolfgang W. Müller, Rebecca Köhler, Peter H. Krammer, Min Li‐Weber Tags: Cancer Therapy Source Type: research