Project description:Antigenic variation in Plasmodium falciparum is achieved by transcriptional switching amongst polymorphic var genes, enforced by epigenetic modification of chromatin. Histone-modifying ‘sirtuin’ enzymes PfSir2a and PfSir2b have been implicated in this process. We examined the effect of genetic disruption of sirtuins on var gene expression. Comparative Genomic Hybridization profile indicate that loss of PfSir2a in 3D7 resulted in strikingly rearranged chromosomes.
Project description:Purpose: Cholesterol is an essential nutrient for diverse biological processes in all organisms. However, the role of cholesterol in immune function remains understudied. Hence the goal is to obtain cholesterol-mediated immune genes Methods: Hermaphrodite C. elegans (var. Bristol) wild type (N2) were grown on 20 along side with control, which is 5µg/ml cholesterol and harvested at L4 stage. Total RNA was extracted and RNA sequencing was done following standard protocols Results: Detailed analyses of the transcriptomic data show that cholesterol-mediated immune gene that could enhance the fight against infectious diseases Conclusions: This study showed a novel role for cholesterol in the enhancement of the innate
Project description:Histone modifications represent one of the key factors contributing to proper genome regulation. One of the histone modifications involved in gene silencing is H3K9 methylation, which is found in the chromosomes across different eukaryotes and controlled by SU(VAR)3-9 and its orthologs. Although SU(VAR)3-9 was discovered over two decades ago, little is known about the details of its chromosomal distribution pattern. To fill in this gap, we used DamID-seq approach and obtained high-resolution genome-wide profiles for SU(VAR)3-9 in two somatic and two germline tissues of fruitfly.
Project description:Oral cavity Squamous Cell Carcinoma (OCSCC) is a common form of head and neck cancer through the developed and developing world. However, the etiology of OCSCC is still unclear. To explore whether smoking, HPV and/or other underlying genetic and transcriptomic changes could be responsible for the oncogenesis events for OCSCC. A prospective observational study of fresh tissue biopsy from 45 participants with OCSCC collected from Brisbane Head and Neck Clinics between 2013 to 2015. Exploration of the genetic and transcriptomic landscape was performed using RNA sequencing and whole exome sequencing. Identification of HPV was to be performed using DNA PCR genotyping and RNA sequencing. Patient medical records were retrieved and the patient demographics were used to correlate with genomic and transcriptomics analyses, including the location of the tumor within the oral cavity, smoking and alcohol histories.
Project description:Purpose: Cholesterol is an essential nutrient for diverse biological processes in all organisms. However, the role of cholesterol in immune function remains understudied. Hence the goal is to obtain cholesterol-mediated immune genes Methods: Hermaphrodite C. elegans (var. Bristol) wild type (N2) were grown on 0µg/ml along side with control, which is 5µg/ml cholesterol and harvested at L4 stage. Total RNA was extracted and RNA sequencing was done following standard protocols Results: Detailed analyses of the transcriptomic data show that cholesterol-mediated immune gene that could enhance the fight against infectious diseases Conclusions: This study showed a novel role for cholesterol in the enhancement of the innate
2020-04-21 | GSE137058 | GEO
Project description:Genomic and transcriptomic analyses of Phellinus noxius strains