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Genetics, Transcriptomics and Meta-Taxonomics in Visceral Leishmaniasis

Visceral leishmaniasis (VL) caused by parasites of the Leishmania donovani complex can be fatal in susceptible individuals. Understanding the interactions between host and pathogen is one way to obtain leads to develop better drugs and for vaccine development. In recent years multiple omics-based approaches have assisted researchers to gain a more global picture of this interaction in leishmaniasis. Here we review results from studies using three omics-based approaches to study VL caused by L. donovani in India.

Repair of an Attenuated Low-Passage Murine Cytomegalovirus Bacterial Artificial Chromosome Identifies a Novel Spliced Gene Essential for Salivary Gland Tropism

The cloning of herpesviruses as bacterial artificial chromosomes (BAC) has revolutionized the study of herpesvirus biology, allowing rapid and precise manipulation of viral genomes. Several clinical strains of human cytomegalovirus (HCMV) have been cloned as BACs; however, no low-passage strains of murine CMV, which provide a model mimicking these isolates, have been cloned. Here, the low-passage G4 strain of was BAC cloned. G4 carries an m157 gene that does not ligate the natural killer cell-activating receptor, Ly49H, meaning that unlike laboratory strains of MCMV, this virus replicates well in C57BL/6 mice.

An in silico pipeline to filter the Toxoplasma gondii proteome for proteins that could traffic to the host cell nucleus and influence host cell epigenetic regulation

To identify genes with putative epigenetic functions, we developed an in silico pipeline to interrogate the T. gondii proteome of 8313 proteins

Comparative analyses of whole genome sequences of Leishmania infantum isolates from humans and dogs in northeastern Brazil

Overall the analyses do not suggest individual sequence variants account for differences in clinical outcome or adaptation to different hosts.

Analysis of expression of FLI1 and MMP1 in American cutaneous leishmaniasis caused by Leishmania braziliensis infection

MMP1 is regulated by factors other than FLI1, and that the influence of IL-6 on MMP1 was independent of its effect on FLI1 in Leishmania braziliensis

Comprehensive candidate gene analysis for symptomatic or asymptomatic outcomes of Leishmania infantum infection in Brazil

Our results imply a role for IgG-mediated inflammation in determining delayed-type hypersensitivity associated with asymptomatic leishmaniasis

FANTOM5 CAGE profiles of human and mouse samples

Resulting data represents the consequence of transcriptional regulation in each analyzed state of mammalian cells.

A Method to Exploit the Structure of Genetic Ancestry Space to Enhance Case-Control Studies

These results highlight how UNICORN can enable reliable, powerful, and convenient genetic association analyses without access to the individual-level data

Polygenic risk of ischemic stroke is associated with cognitive ability

Findings from this study indicate that even in the absence of stroke, being at high polygenic risk of ischemic stroke is associated with lower cognitive ability

The -308 bp TNF gene polymorphism influences tumor necrosis factor expression in leprosy patients in Bahia State, Brazil

TNF mRNA expression was higher in leprosy patients compared to endemic controls, but did not differ significantly between clinical subgroups