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Recent advances in siRNA delivery systems for prostate cancer therapy
Curr Pharm Biotechnol. 2021 Jun 15. doi: 10.2174/1389201022666210615123211. Online ahead of print.ABSTRACTThe critical problems of conventional prostate cancer therapeutic strategies like nonspecific toxicity and multi-drug resistance prompted the development and application of countless nanoparticle-based siRNA therapeutics. The main challenges to siRNA-based therapeutics becoming a new paradigm in the treatment of prostate cancer stem from the lack of safe and effective delivery systems, immune system stimulation, poor knowledge of nano-bio interactions, and limitations concerning designing, manufacturing, clinical trans...
Source: Current Pharmaceutical Biotechnology - June 16, 2021 Category: Biotechnology Authors: Shahin Aghamiri Pourya Raee Shiva Shahmohamadnejad Sasan Shabani Jaber Ghorbani Marzieh Sameni Mohammad Taha Ebrahimi Source Type: research

Identification of a Novel 1,2 Oxazine That Can Induce Apoptosis by Targeting NF-κB in Hepatocellular Carcinoma Cells
Publication date: Available online 19 February 2020Source: Biotechnology ReportsAuthor(s): Chaithanya Somu, Chakrabhavi Dhananjaya Mohan, Sachin Ambedkar, Dukanya, Shobith Rangappa, CP Baburajeev, Alexey Sukhorukov, Srishti Mishra, Muthu K Shanmugam, Arunachalam Chinnathambi, Tahani Awad Alahmadi, Sulaiman Ali Alharbi, Basappa, Kanchugarakoppal S. RangappaAbstractConstitutive activation of NF-κB is associated with proinflammatory diseases and suppression of the NF-κB signaling pathway has been considered as an effective therapeutic strategy in the treatment of various cancers including hepatocellular carcinoma (HCC). Her...
Source: Biotechnology Reports - February 20, 2020 Category: Biotechnology Source Type: research

Exosomes-mediated synthetic Dicer substrates delivery for intracellular Dicer imaging detection.
In this study, we design a fluorescent labeling Dicer substrate and effectively deliver it into cell by exosomes derived from the target parent cells for intracellular Dicer expression level monitor and gene therapy. Using pre-miRNA let-7a as a model, the Dicer substrates with two terminals labeled with fluorescent and quencher group respectively was obtained by T4 RNA mediated ligase reaction from two short RNA sequences. Then, the substrate was packaged into exosomes by electroporation and delivered to target cells for intracellular dicer imaging detection. After packaging substrates into exosomes with little immunogenic...
Source: Biosensors and Bioelectronics - February 1, 2020 Category: Biotechnology Authors: Dai W, Su L, Lu H, Dong H, Zhang X Tags: Biosens Bioelectron Source Type: research

Co-delivery of curcumin and Bcl-2 siRNA by PAMAM dendrimers for enhancement of the therapeutic efficacy in HeLa cancer cells.
Abstract Co-delivery of therapeutic agents and small interfering RNA (siRNA) can be achieved by a suitable nanovehicle. In this work, the solubility and bioavailability of curcumin (Cur) were enhanced by entrapment in a polyamidoamine (PAMAM) dendrimer, and a polyplex was formed by grafting Bcl-2 siRNA onto the surface amine groups to produce PAMAM-Cur/Bcl-2 siRNA nanoparticles (NPs). The synthesized polyplex NPs had a particle size of ∼180 nm, and high Cur loading content of ∼82 wt%. Moreover, the PAMAM-Cur/Bcl-2 siRNA NPs showed more effective cellular uptake, and higher inhibition of tumor cell proliferat...
Source: Colloids and Surfaces - December 26, 2019 Category: Biotechnology Authors: Ghaffari M, Dehghan G, Baradaran B, Zarebkohan A, Mansoori B, Soleymani J, Ezzati Nazhad Dolatabadi J, Hamblin MR Tags: Colloids Surf B Biointerfaces Source Type: research

miR-324-5p inhibits gallbladder carcinoma cell metastatic behaviours by downregulation of transforming growth factor beta 2 expression.
Authors: Zhang X, Zhang L, Chen M, Liu D Abstract Increasing studies have demonstrated that microRNAs (miRNAs) are associated with the metastasis of gallbladder carcinoma (GBC). Recently, miR-324-5p has been reported to be a tumour-suppressive miRNA in many types of malignant cancer. However, the biological function and molecular mechanism of miR-324-5p in GBC still remain largely unknown. Here, we found that miR-324-5p expression was notably down-regulated in both GBC tissues and cells compared with that in normal controls. Downregulated miR-324-5p expression was negatively associated with the status of local inva...
Source: Artificial Cells, Nanomedicine and Biotechnology - December 22, 2019 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

Exosomes-mediated synthetic dicer substrates delivery for intracellular dicer imaging detection
In this study, we design a fluorescent labeling Dicer substrate and effectively deliver it into cell by exosomes derived from the target parent cells for intracellular Dicer expression level monitor and gene therapy. Using pre-miRNA let-7a as a model, the Dicer substrates with two terminals labeled with fluorescent and quencher group respectively was obtained by T4 RNA mediated ligase reaction from two short RNA sequences. Then, the substrate was packaged into exosomes by electroporation and delivered to target cells for intracellular dicer imaging detection. After packaging substrates into exosomes with little immunogenic...
Source: Biosensors and Bioelectronics - December 10, 2019 Category: Biotechnology Source Type: research

Targeting clusterin induces apoptosis, reduces growth ability, invasion and mediates sensitivity to chemotherapy in human cancer in human osteosarcoma cells.
CONCLUSIONS: Overexpression of sCLU was significantly correlated with metastasis and chemosensitivity in osteosarcoma cells. The described sCLU-specific siRNA that can potently silence sCLU gene expression may thus prove valuable agents during antitumor therapy. PMID: 31433751 [PubMed - as supplied by publisher]
Source: Current Pharmaceutical Biotechnology - August 20, 2019 Category: Biotechnology Authors: Wang X, Yu Y, Zang L, Zhang P, Ma J, Chen D Tags: Curr Pharm Biotechnol Source Type: research

Transcriptome profiling of cervical cancer cells acquired resistance to cisplatin by deep sequencing.
In this study, we developed cisplatin resistance cell line, subsequently examined the molecular mechanisms linked. Transcriptome sequencing technology was utilized to compare the various expression models between the cisplatin-resistant cell line (Hela/DDP) and its parental cell line human cervical adenocarcinoma Hela. The present study has identified 2,312 differentially expressed genes (DEGs). Results showed there were 1,437 up-regulated genes and 875 down-regulated ones. Databases analysis including Gene ontology (GO), Cluster of Orthologous Groups of proteins (COG) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pat...
Source: Artificial Cells, Nanomedicine and Biotechnology - July 13, 2019 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

Cancer cell membrane cloaking nanoparticles for targeted co-delivery of doxorubicin and PD-L1 siRNA.
Authors: Chen M, Chen M, He J Abstract Nanoparticles coated with cell membranes have been garnering growing attention due to their homologous binding capability of membrane molecules and consequent self-recognition by their source cells. In the present study, we report on the construction of doxorubicin and PD-L1 siRNA-loaded PLGA nanoparticles and their biological functionalization by cancer cell-derived membrane cloaking. The resulting cancer cell membrane-coated nanoparticles (CCMNPs) presented a core-shell nanostructure with highly specific self-recognition affinity to the homotypic cells, which can be attribut...
Source: Artificial Cells, Nanomedicine and Biotechnology - April 28, 2019 Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research

Cancer cell membrane cloaking nanoparticles for targeted co-delivery of doxorubicin and PD-L1 siRNA
Volume 47, Issue 1, December 2019, Page 1635-1641 .
Source: Artificial Cells, Blood Substitutes, and Biotechnology - April 26, 2019 Category: Biotechnology Authors: Mushi Chen Ming Chen Jiantai He Source Type: research

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