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SRP108003
Pseudomonas aeruginosa
2 Downloadable Samples
NextSeq 500
Description
We undertook to validate the therapeutic use of a polyherbal preparation described in Ayurved as ‘Panchvalkal’, which has been suggested for treatment of microbial infections. We tested this formulation available in market as Pentaphyte P-5®, against Pseudomonas aeruginosa, for its quorum sensing (QS) modulatory potential. Following demonstration of its in vitro QS modulatory potential, we assayed it for in vivo efficacy using the nematode Caenorhabditis elegans as a model host. This polyherbal formulation conferred notable survival benefit when the nematode worm was challenged with the test pathogen. Todecipher the molecular basis of its efficacy, whole transcriptome analysis of P. aeruginosa exposed to ‘Panchvalkal’ was done, its gene expression profile inpresence of ‘Panchvalkal’ was compared with that in its absence. This polyherbal formulation also enhanced the susceptibility of P. aeruginosa to antibiotics like gentamicin, tetracycline, and cephalexin. This study is a good demonstration of the role of bacterial QS machinery as an important target for development of new antimicrobials/ anti-infectives, and also of the effective use of moderngenomics for validation of ayurvedic prescriptions i.e. ayuromics.
Publication Title
No associated publication
Sample Metadata Fields
Specimen part, Disease
View Samples- Homo sapiens
- 389 Downloadable Samples
Affymetrix Human Genome U133A Array (hgu133a)
Description
The study consist of patients who presented at Memorial Sloan-Kettering Cancer Center with a colonic neoplasm between 1992 and 2004. Biological specimens used in this study include primary colon adenocarcinomas, adenomas, metastasis and corresponding normal mucosae.
Publication Title
Association of survival and disease progression with chromosomal instability: a genomic exploration of colorectal cancer.
Sample Metadata Fields
Sex, Age, Specimen part, Cell line, Subject
View Samples- Homo sapiens
- 119 Downloadable Samples
- Affymetrix Human Genome U133A Array (hgu133a)
Description
DS-ALL is a highly heterogeneous disease with predominance of an aberrant exp. of CRLF2 cooperating with mutated JAK2
Publication Title
Down syndrome acute lymphoblastic leukemia, a highly heterogeneous disease in which aberrant expression of CRLF2 is associated with mutated JAK2: a report from the International BFM Study Group.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus, Homo sapiens
- 12 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Derivation of novel human ground state naive pluripotent stem cells.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 12 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Corrigendum: Deterministic direct reprogramming of somatic cells to pluripotency.
Sample Metadata Fields
Specimen part
View Samples- Mus musculus
- 28 Downloadable Samples
- Affymetrix Mouse Genome 430 2.0 Array (mouse4302)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Runx3-mediated transcriptional program in cytotoxic lymphocytes.
Sample Metadata Fields
Sex, Age, Specimen part, Treatment
View Samples- Arabidopsis thaliana
- 18 Downloadable Samples
- Affymetrix Arabidopsis ATH1 Genome Array (ath1121501)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
The response and recovery of the Arabidopsis thaliana transcriptome to phosphate starvation.
Sample Metadata Fields
Age, Specimen part, Treatment
View Samples- Homo sapiens
- 14 Downloadable Samples
- Affymetrix Human Gene 1.0 ST Array (hugene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
Epigenetic polymorphism and the stochastic formation of differentially methylated regions in normal and cancerous tissues.
Sample Metadata Fields
Specimen part, Cell line
View Samples- Mus musculus
- 7 Downloadable Samples
- Affymetrix Mouse Gene 1.0 ST Array (mogene10st)
Description
This SuperSeries is composed of the SubSeries listed below.
Publication Title
The H3K27 demethylase Utx regulates somatic and germ cell epigenetic reprogramming.
Sample Metadata Fields
Specimen part
View Samples- Homo sapiens
- 27 Downloadable Samples
- Affymetrix Human Genome U133A 2.0 Array (hgu133a2)
Description
Duplication of chromosomal arm 20q occurs in prostate, cervical, colon, gastric, bladder, melanoma, pancreas and breast cancer, suggesting that 20q amplification may play a key causal role in tumorigenesis. According to an alternative view, chromosomal instabilities are mainly a common side effect of cancer progression. To test whether a specific genomic aberration might serve as a cancer initiating event, we established an in vitro system that models the evolutionary process of early stages of prostate tumor formation; normal prostate cells were immortalized and cultured for 650 days till several transformation hallmarks were observed. Gene expression patterns were measured and chromosomal aberrations were monitored by spectral karyotype analysis at different times. Several chromosomal aberrations, in particular duplication of chromosomal arm 20q, occurred early in the process and were fixed in the cell populations, while other aberrations became extinct shortly after their appearance. A wide range of bioinformatic tools, applied to our data and to data from several cancer databases, revealed that spontaneous 20q amplification can promote cancer initiation. Our computational model suggests that deregulation of some key pathways, such as MAPK, p53, cell cycle regulation and Polycomb group factors, in addition to activation of several genes like Myc, AML, B-Catenin and the ETS family transcription factors, are key steps in cancer development driven by 20q amplification. Finally we identified 13 cancer initiating genes, located on 20q13, which were significantly overexpressed in many tumors, with expression levels correlated with tumor grade and outcome; these probably play key roles in inducing malignancy via20q amplification.
Publication Title
Amplification of the 20q chromosomal arm occurs early in tumorigenic transformation and may initiate cancer.
Sample Metadata Fields
Specimen part
View Samples