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Background: Aedes albopictus is a vector of arboviruses that cause severe diseases in humans such as Chikungunya, Dengue and Zika fevers. The vector competence of Ae. albopictus varies depending on the mosquito population involved and the virus transmitted. Wolbachia infection status in believed to be among key elements that determine viral transmission efficiency. Little is known about the cellular functions mobilized in Ae. albopictus during co-infection by Wolbachia and a given arbovirus. To decipher this tripartite interaction at the molecular level, we performed a proteome analysis in Ae. albopictus C6/36 cells mono-infected by Wolbachia wAlbB strain or Chikungunya virus (CHIKV), and bi-infected.
Results: We first confirmed significant inhibition of CHIKV by Wolbachia. Using two-dimensional gel electrophoresis followed by nano liquid chromatography coupled with tandem mass spectrometry, we identified 600 unique differentially expressed proteins mostly related to glycolysis, translation and protein metabolism. Wolbachia infection had greater impact on cellular functions than CHIKV infection, inducing either up or down-regulation of proteins associated with metabolic processes such as glycolysis and ATP metabolism, or structural glycoproteins and capsid proteins in the case of bi-infection with CHIKV. CHIKV infection inhibited expression of proteins linked with the processes of transcription, translation, lipid storage and miRNA pathways.
Conclusions: The results of our proteome profiling have provided new insights into the molecular pathways involved in tripartite Ae. albopictus-Wolbachia-CHIKV interaction and may help defining targets for the better implementation of Wolbachia-based strategies for disease transmission control.
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http://dx.doi.org/10.1186/s12864-017-3985-y | DOI Listing |
Exp Neurol
December 2024
Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin, Ireland; FutureNeuro Research Ireland Centre, Royal College of Surgeons in Ireland, Dublin, Ireland. Electronic address:
tRNA-derived stress-induced RNAs (tiRNAs) are a new class of small non-coding RNA that have emerged as important regulators of cellular stress responses. tiRNAs are derived from specific tRNA cleavage by the stress-induced ribonuclease angiogenin (ANG). Loss-of-function mutations in the ANG gene are linked to amyotrophic lateral sclerosis (ALS), and elevated levels of specific tiRNAs were recently identified in ALS patient serum samples.
View Article and Find Full Text PDFAMB Express
December 2024
Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), 20 Biopolis Way, #06-01 Centros, Singapore, 138668, Singapore.
Sodium butyrate (NaBu), well-known as a histone deacetylase inhibitor and for its capacity to impede cell growth, can enhance the production of a specific protein, such as an antibody, in recombinant Chinese hamster ovary (CHO) cell cultures. In this study, two CHO cell lines, namely K1 and DG44, along with their corresponding mAb-producing lines, K1-Pr and DG44-Pr, were cultivated with or without NaBu. A SWATH-based profiling method was employed to analyze the proteome.
View Article and Find Full Text PDFAdv Healthc Mater
December 2024
Evolved.Bio, 280 Joseph Street, Kitchener, Ontario, N2G4Z5, Canada.
Progress in understanding the underlying mechanisms of muscular dystrophies is hindered by the lack of pathophysiologically relevant in vitro models. Here, an entirely scaffold-free anchored cell sheet engineering platform is used to create patient-specific three-dimensional (3D) skeletal muscle in vitro models. This approach effectively replicates mature muscle phenotypes and tissue- and disease-specific extracellular matric (ECM).
View Article and Find Full Text PDFProstaglandins Leukot Essent Fatty Acids
December 2024
Center for Neuroscience, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, , Netherlands. Electronic address:
Lipid dyshomeostasis and neuroinflammation are key hallmarks of neuropsychiatric and neurodegenerative disorders, including major depressive disorder and Alzheimer's disease. In particular, polyunsaturated fatty acids (PUFAs) and their derivatives called oxylipins gained specific interest in this context, especially considering their capacity to orchestrate neuroinflammatory responses via direct modulation of microglia. The hippocampus and hypothalamus are crucial brain regions for regulating mood and cognition that are implicated in a variety of neuropsychiatric and neurodegenerative disorders and there is ample evidence for the sex-bias in risks for the development as well as sex-bias in the presentation of such psychiatric diseases, including the neuroinflammatory response.
View Article and Find Full Text PDFFront Oncol
December 2024
Cansearch Research Platform for Pediatric Oncology and Hematology, Department of Pediatrics, Gynecology and Obstetrics, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
Background: We previously demonstrated that APR-246 (eprenetapopt) could be an efficient treatment option against neuroblastoma (NB), the most common pediatric extracranial solid tumor. APR-246's mechanism of action is not completely understood and can differ between cell types. Here we investigate the involvement of well-known oncogenic pathways in NB's response to APR-246.
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