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MetabolomicsFour layer multi-omics reveals molecular responses to aneuploidy in Leishmania

Aneuploidy causes system-wide disruptions in the stochiometric balances of transcripts, proteins, and metabolites, often resulting in detrimental effects for the organism. The protozoan parasite Leishmania has an unusually high tolerance for aneuploidy, but the molecular and functional consequenc...

2022-09-19 | MTBLS1612 | MetaboLights
TranscriptomicsDifferential gene expression between uninfected and infected U937 derived macrophages with  Leishmania braziliensis
The main objective of this study is to identify the list of genes differentially expressed between infected with Leishmania braziliensis and non-infected macrophage cultures based on gene expression microarray profiling The dataset is comprised by the expression profile of 6 samples from three inde...
ORGANISM(S): Homo sapiens 
2015-06-10 | E-GEOD-61211 | biostudies-arrayexpress
MetabolomicsTranscriptional Shift and Metabolic Adaptations during Leishmania Quiescence Using Stationary Phase and Drug Pressure as Models

Microorganisms can adopt a quiescent physiological condition which acts as a survival strategy under unfavourable conditions. Quiescent cells are characterized by slow or non-proliferation and deep down-regulation of processes related to biosynthesis. Although quiescence has been described mostly...

2022-02-23 | MTBLS4046 | MetaboLights
TranscriptomicsMetabolic Reprogramming During Purine Stress in the Protozoan Pathogen Leishmania donovani
The ability of Leishmania to survive in their insect or mammalian host is dependent upon an ability to sense and adapt to changes in the microenvironment. However, little is known about the molecular mechanisms underlying the parasite response to environmental changes, such as nutrient availability....
ORGANISM(S): Leishmania donovani 
2014-02-01 | E-GEOD-48394 | biostudies-arrayexpress
TranscriptomicsMicroRNAome comparison between macrophages infected with Leishmania RNA virus containing L.guyanensis and virus-free parasites
Leishmania RNA virus is an endosymbiotic virus of obligate intracellular Leishmania parasites. The presence of Leishmania RNA virus has been associated to metastatic leishmaniasis in hamsters and the failure of the first-line treatment in humans. This experiment aims to find the differences in the m...
ORGANISM(S): Mus musculus 
2016-09-01 | E-MTAB-4413 | biostudies-arrayexpress
MetabolomicsUntargeted metabolomics to understand the basis of phenotypic differences in amphotericin B-resistant Leishmania parasites

BACKGROUND: Protozoan Leishmania parasites are responsible for a range of clinical infections that represent a substantial challenge for global health. Amphotericin B (AmB) is increasingly used to treat Leishmania infection, so understanding the potential for resistance to this d...

2019-09-26 | MTBLS1167 | MetaboLights
TranscriptomicsBase J represses genes at the end of polycistronic gene clusters in Leishmania major by promoting RNAP II termination
Base J and H3.V promote RNA Polymerase (RNAP) II termination within polycistronic gene clusters in the kinetoplastid species Trypanosoma brucei. Although base J has been shown to promote RNAP II termination in the related kinetoplastid species Leishmania major and Leishmania tarentolae, the role of ...
ORGANISM(S): Leishmania major 
2016-07-20 | E-GEOD-77632 | biostudies-arrayexpress
ProteomicsThe mRNA-bound proteome of Leishmania mexicana is stage-regulated with distinct transcript target pools
Leishmania species parasite infections, termed the leishmaniases, cause significant global infectious disease burden. The lifecycle of the parasite embodies three main stages that require precise coordination of gene regulation to survive drastic environmental shifts transitioning from sandfly to ma...
ORGANISM(S): Leishmania Mexicana (ncbitaxon:5665) 
2018-10-11 | MSV000083023 | MassIVE
TranscriptomicsMethotrexate resistant Leishmania strains
This SuperSeries is composed of the following subset Series: GSE9947: Transcriptional analysis of Leishmania infantum methotrexate resistant strains using full-genome DNA microarrays GSE9948: Transcriptional analysis of Leishmania major methotrexate resistant strains using full-genome DNA microarray...
ORGANISM(S): Leishmania infantum 
2010-05-25 | E-GEOD-9949 | biostudies-arrayexpress
TranscriptomicsGlucosylated hydroxymethyluracil (DNA base J) prevents transcriptional read-through in Leishmania
Some T's in nuclear DNA of trypanosomes and Leishmania are hydroxylated and glucosylated to yield base J (?-D-glucosyl-hydroxymethyluracil). In Leishmania about 99% of J is located in telomeric repeats. We show here that most of the remaining J is located at chromosome-internal RNA Polymerase II ter...
ORGANISM(S): Leishmania major 
2011-10-15 | E-GEOD-32976 | biostudies-arrayexpress
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