RNAi has been successfully applied in genomic research, and it also holds considerable promise as a therapeutic approach to suppress disease-causing gene expression. Here, we show that attenuated S. typhimurium were capable of delivering shRNA-expressing vectors to mammalian cells and inducing RNAi in vitro and in vivo. Upon oral administration, S. typhimurium carrying shRNA-expressing vectors targeting bcl2 induced significant gene silencing in murine melanoma cells that led to a remarkably delayed tumor growth and prolonged survival in the mouse model. These results suggest that bacteria mediated RNAi may be a new potent approach to the treatment of cancers.
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http://dx.doi.org/10.4161/cbt.7.1.5195 | DOI Listing |
Psychopharmacology (Berl)
October 2024
Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA.
Rationale: Incubation of cocaine craving refers to the progressive intensification of cue-induced craving during abstinence from cocaine self-administration. We showed previously that homomeric GluA1 Ca-permeable AMPARs (CP-AMPAR) accumulate in excitatory synapses of nucleus accumbens core (NAcc) medium spiny neurons (MSN) after ∼1 month of abstinence and thereafter their activation is required for expression of incubation. Therefore, it is important to understand mechanisms underlying CP-AMPAR plasticity.
View Article and Find Full Text PDFBehav Brain Res
May 2024
College of Medicine, Ajman University, Ajman, United Arab Emirates; Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, United Arab Emirates; Department of Anatomy, CMHS, UAE University, Al Ain, United Arab Emirates. Electronic address:
Patients with stress-triggered major depression disorders (MDD) can often seek comfort or temporary relief through alcohol consumption, as they may turn to it as a means of self-medication or coping with overwhelming emotions. The use of alcohol as a coping mechanism for stressful events can escalate, fostering a cycle where the temporary relief it provides from depression can deepen into alcohol dependence, exacerbating both conditions. Although, the specific mechanisms involved in stress-triggered alcohol dependence and MDD comorbidities are not well understood, a large body of literature suggests that the serotonin transporter (SERT) plays a critical role in these abnormalities.
View Article and Find Full Text PDFBMC Biotechnol
September 2023
Transboundary Animal Disease Center, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, 890-0065, Japan.
Background: Classical swine fever (CSF) is a fatal contagious disease affecting pigs caused by classical swine fever virus (CSFV). The disease can be transmitted by pigs and wild boars, and it is difficult to prevent and control. To obtain necessary information to establish the CSFV resistant animals in a future study, we designed lentiviral vector-delivered short hairpin RNAs (shRNAs) targeting the conserved domain III of the internal ribosomal entry site (IRES) of the CSFV genomic RNA.
View Article and Find Full Text PDFBehav Brain Res
August 2023
Division of Biochemistry, Department of Medicine, University of Fribourg, CH-1700 Fribourg, Switzerland.
The comorbidity of generalized anxiety disorders (GAD) with alcohol use disorders (AUD) is common and there is an association between the serotonin transporter (SERT) genetic variation and the comorbid conditions of GAD and AUD. However, few mechanistic studies have systematically explored the role of direct SERT manipulation in stress-elicited mood disorders. Therefore, the aim of this study was to determine whether reductions in SERT expression in the hippocampus were sufficient to ameliorate anxiety- and ethanol-related behaviors in socially defeated mice.
View Article and Find Full Text PDFInt J Mol Sci
July 2022
Institute for Human Tissue Restoration, Department of Plastic & Reconstructive Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul 03722, Korea.
Wound healing is a complicated cascading process; disequilibrium among reparative processes leads to the formation of pathologic scars. Herein, we explored the role of mortalin in scar formation and its association with the interleukin-1α receptor using in vitro and in vivo models. To investigate the effects of mortalin, we performed an MTT cell viability assay, qRT-PCR, and Western blot analyses, in addition to immunofluorescence and immunoprecipitation studies using cultured fibroblasts.
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