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1.
Viruses ; 16(6)2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38932165

RESUMEN

Recently, high-throughput sequencing of influenza A viruses has become a routine test. It should be noted that the extremely high diversity of the influenza A virus complicates the task of determining the sequences of all eight genome segments. For a fast and accurate analysis, it is necessary to select the most suitable reference for each segment. At the same time, there is no standardized method in the field of decoding sequencing results that allows the user to update the sequence databases to which the reads obtained by virus sequencing are compared. The IAVCP (influenza A virus consensus and phylogeny) was developed with the goal of automatically analyzing high-throughput sequencing data of influenza A viruses. Its goals include the extraction of a consensus genome directly from paired raw reads. In addition, the pipeline enables the identification of potential reassortment events in the evolutionary history of the virus of interest by analyzing the topological structure of phylogenetic trees that are automatically reconstructed.


Asunto(s)
Genoma Viral , Secuenciación de Nucleótidos de Alto Rendimiento , Virus de la Influenza A , Filogenia , Secuenciación de Nucleótidos de Alto Rendimiento/métodos , Virus de la Influenza A/genética , Virus de la Influenza A/clasificación , Humanos , Genómica/métodos , Gripe Humana/virología , Biología Computacional/métodos
2.
Front Bioeng Biotechnol ; 12: 1371596, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38605988

RESUMEN

Codon optimization has evolved to enhance protein expression efficiency by exploiting the genetic code's redundancy, allowing for multiple codon options for a single amino acid. Initially observed in E. coli, optimal codon usage correlates with high gene expression, which has propelled applications expanding from basic research to biopharmaceuticals and vaccine development. The method is especially valuable for adjusting immune responses in gene therapies and has the potenial to create tissue-specific therapies. However, challenges persist, such as the risk of unintended effects on protein function and the complexity of evaluating optimization effectiveness. Despite these issues, codon optimization is crucial in advancing gene therapeutics. This study provides a comprehensive review of the current metrics for codon-optimization, and its practical usage in research and clinical applications, in the context of gene therapy.

3.
Nature ; 455(7216): 1109-13, 2008 Oct 23.
Artículo en Inglés | MEDLINE | ID: mdl-18806780

RESUMEN

Type 1 diabetes (T1D) is a debilitating autoimmune disease that results from T-cell-mediated destruction of insulin-producing beta-cells. Its incidence has increased during the past several decades in developed countries, suggesting that changes in the environment (including the human microbial environment) may influence disease pathogenesis. The incidence of spontaneous T1D in non-obese diabetic (NOD) mice can be affected by the microbial environment in the animal housing facility or by exposure to microbial stimuli, such as injection with mycobacteria or various microbial products. Here we show that specific pathogen-free NOD mice lacking MyD88 protein (an adaptor for multiple innate immune receptors that recognize microbial stimuli) do not develop T1D. The effect is dependent on commensal microbes because germ-free MyD88-negative NOD mice develop robust diabetes, whereas colonization of these germ-free MyD88-negative NOD mice with a defined microbial consortium (representing bacterial phyla normally present in human gut) attenuates T1D. We also find that MyD88 deficiency changes the composition of the distal gut microbiota, and that exposure to the microbiota of specific pathogen-free MyD88-negative NOD donors attenuates T1D in germ-free NOD recipients. Together, these findings indicate that interaction of the intestinal microbes with the innate immune system is a critical epigenetic factor modifying T1D predisposition.


Asunto(s)
Bacterias/inmunología , Diabetes Mellitus Tipo 1/inmunología , Diabetes Mellitus Tipo 1/microbiología , Inmunidad Innata/inmunología , Intestinos/microbiología , Animales , Bacterias/clasificación , Bacterias/genética , Bacterias/aislamiento & purificación , Linfocitos T CD8-positivos/inmunología , Diabetes Mellitus Tipo 1/genética , Femenino , Inmunidad Innata/genética , Interferón gamma/inmunología , Islotes Pancreáticos/patología , Masculino , Ratones , Ratones Endogámicos NOD , Ratones Noqueados , Ratones SCID , Datos de Secuencia Molecular , Factor 88 de Diferenciación Mieloide/genética , Filogenia , Organismos Libres de Patógenos Específicos , Factores de Tiempo
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