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siRNA rescues nonhuman primates from advanced Marburg and Ravn virus disease
Ebolaviruses and marburgviruses belong to the family Filoviridae and cause high lethality in infected patients. There are currently no licensed filovirus vaccines or antiviral therapies. The development of broad-spectrum therapies against members of the Marburgvirus genus, including Marburg virus (MARV) and Ravn virus (RAVV), is difficult because of substantial sequence variability. RNAi therapeutics offer a potential solution, as identification of conserved target nucleotide sequences may confer activity across marburgvirus variants. Here, we assessed the therapeutic efficacy of lipid nanoparticle (LNP) delivery of a sing...
Source: Journal of Clinical Investigation - November 7, 2017 Category: Biomedical Science Authors: Emily P. Thi, Chad E. Mire, Amy C.H. Lee, Joan B. Geisbert, Raul Ursic-Bedoya, Krystle N. Agans, Marjorie Robbins, Daniel J. Deer, Robert W. Cross, Andrew S. Kondratowicz, Karla A. Fenton, Ian MacLachlan, Thomas W. Geisbert Source Type: research

ALIX Rescues Budding of a Double PTAP/PPEY L-Domain Deletion Mutant of Ebola VP40: A Role for ALIX in Ebola Virus Egress
Ebola (EBOV) is an enveloped, negative-sense RNA virus belonging to the family Filoviridae that causes hemorrhagic fever syndromes with high-mortality rates. To date, there are no licensed vaccines or therapeutics to control EBOV infection and prevent transmission. Consequently, the need to better understand the mechanisms that regulate virus transmission is critical to developing countermeasures. The EBOV VP40 matrix protein plays a central role in late stages of virion assembly and egress, and independent expression of VP40 leads to the production of virus-like particles (VLPs) by a mechanism that accurately mimics buddi...
Source: The Journal of Infectious Diseases - September 9, 2015 Category: Infectious Diseases Authors: Han, Z., Madara, J. J., Liu, Y., Liu, W., Ruthel, G., Freedman, B. D., Harty, R. N. Tags: MOLECULAR BIOLOGY Source Type: research