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MetabolomicsUntargeted LC-MS metabolomic studies of Asteraceae species to discover inhibitors of Leishmania major dihydroorotate dehydrogenase

INTRODUCTION: Interesting data about the family Asteraceae as a new source of Leishmania major dihydroorotate dehydrogenase (LmDHODH) inhibitors are presented. This key macromolecular target for parasites causing neglected diseases catalyzes the fourth reaction of the de novo pyr...

2019-10-14 | MTBLS722 | 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
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
TranscriptomicsKinetoplastid-specific histone variant functions are conserved in Leishmania major
Protein-coding genes in kinetoplastid protists are transcribed from polycistronic arrays, yielding RNA precursors which are processed to form mature transcripts bearing a 5M-bM-^@M-^Y spliced leader (SL) and 3M-bM-^@M-^Y poly(A) tract. Regions of transcription initiation and termination lack known e...
ORGANISM(S): Leishmania major 
2013-10-26 | E-GEOD-51737 | biostudies-arrayexpress
TranscriptomicsRegulation of Transcription Termination by Glucosylated Hydroxymethyluracil, Base J, in L. major and T. brucei
Base J, β-D-glucosyl-hydroxymethyluracil, is an epigenetic modification of thymine in the nuclear DNA of flagellated protozoa of the order Kinetoplastida. J is enriched at sites involved in RNA Polymerase (RNAP) II initiation and termination. We have previously demonstrated a role of J in regulating...
ORGANISM(S): Trypanosoma brucei 
2015-05-18 | E-GEOD-57621 | biostudies-arrayexpress
TranscriptomicsTranscriptional analysis of wild-type Leishmania species between both stages using full-genome DNA microarrays
Transcriptional analyses of L. infantum promastigote compared to L. infantum intracellular amastigote, and L. major promastigote compared to L. major intracellular amastigote The full-genome DNA microarray includes one 70mer-oligonucleotide probe for each gene of L. infantum and for each gene of L....
ORGANISM(S): Leishmania major 
2008-05-28 | E-GEOD-10407 | 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
TranscriptomicsSimultaneous gene expression profiling in human macrophages infected with Leishmania major parasites using SAGE
Leishmania (L) are intracellular protozoan parasites which are able to survive and replicate within the harsh and potentially hostile phago-lysosomal environment of mammalian mononuclear phagocytes. A complex interplay then takes place between the macrophage (MM-NM-&) striving to eliminate the patho...
ORGANISM(S): Leishmania major 
2008-05-21 | E-GEOD-10442 | biostudies-arrayexpress
MetabolomicsIntegrated genomic and metabolomic profiling of ISC1, an emerging Leishmania donovani population in the Indian subcontinent

Leishmania donovani is the responsible agent for visceral leishmaniasis (VL) in the Indian subcontinent (ISC). The disease is lethal without treatment and causes 0.2 to 0.4 million cases each year. Recently, reports of VL in Nepalese hilly districts have increased as well as VL cases cau...

2022-09-15 | MTBLS1606 | MetaboLights
TranscriptomicsTranscription profiling of mouse macrophages infected with Leishmania major or Leishmania donovani
Murine bone marrow derived macrophages were infected with Leishmania major or Leishmania donovania promastigotes, allowed to phagocytose latex beads or not treated. Gene expression profiles were compared to identify i) the effect of Leishmania infection; ii) the differences in effects between L. maj...
ORGANISM(S): Mus musculus 
2008-02-05 | E-MEXP-1254 | biostudies-arrayexpress
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