Project description:The razor clam Sinonovacula constricta (Lamarck 1818) is a famous marine bivalve species that widely distributed along the western Pacific coast with important economical and nutritional values. During the evolution, S. constricta has formed specific biological features to adapt to its living habit. To clarify the underlying molecular mechanism in forming the specific biological features, the tissues of siphon, gill, labial palp, foot, mantle, and intestine of S. constricta were subjected to RNA-sequencing. The results showed significant differences existed in gene expression among different tissues, which provided a molecular framework for understanding the differentiation of S. constricta tissues and their underlying specific biological functions.
Project description:Transcriptional profiling of the mantle tissue across the four stages of female gonads development (winter peak) in a natural population of the marine mussel Mytilus galloprovincialis sampled in the Bizerta Lagoon, Tunisia, across November 2007 -March 2008. Background: Seasonal environmental changes may affect the physiology of Mytilus galloprovincialis (Lam.), an intertidal filter-feeder bivalve occurring commonly in Mediterranean and Atlantic coastal areas. We investigated seasonal variations in relative transcript abundance of the digestive gland and the mantle (gonads) of males and females. To identify gene expression trends, we used a medium-density cDNA microarray (1.7 K probes) in dual-color competitive hybridization analyses. Results: Hierarchical clustering of digestive gland microarray data showed two main branches, distinguishing profiles associated with the “hot” months (May–August) from the other months. Genes involved in chitin metabolism, associated with mussel nutrition and digestion, showed higher expression during summer. Moreover, we found different gene expression patterns in the digestive glands of males and females during the four stages of mussel gonadal development. Microarray data from gonadal transcripts also displayed clear patterns during the different developmental phases with peak relative mRNA abundance at the ripe phase (stage III) for both sexes. Conclusion: These data showed a clear temporal pattern in gene expression profiles of mussels sampled over an annual cycle. Physiological response to thermal variation, food availability, and reproductive status across months may contribute to variation in gene expression. Mantle tissue from individual animals in different gonad maturation stages were analyzed in a complete loop design. Dual color competitive hybridizations (stage 4 vs stage 1, 2 vs 1, 3 vs 2, 4 vs 3) including label swap. Single individuals. Four biological replicates. One replicate per array.
Project description:Transcriptional profiling of the mantle tissue across the four stages of male gonads development (winter peak) in a natural population of the marine mussel Mytilus galloprovincialis sampled in the Bizerta Lagoon, Tunisia, across November 2007 -March 2008. Background: Seasonal environmental changes may affect the physiology of Mytilus galloprovincialis (Lam.), an intertidal filter-feeder bivalve occurring commonly in Mediterranean and Atlantic coastal areas. We investigated seasonal variations in relative transcript abundance of the digestive gland and the mantle (gonads) of males and females. To identify gene expression trends, we used a medium-density cDNA microarray (1.7 K probes) in dual-color competitive hybridization analyses. Results: Hierarchical clustering of digestive gland microarray data showed two main branches, distinguishing profiles associated with the M-bM-^@M-^\hotM-bM-^@M-^] months (MayM-bM-^@M-^SAugust) from the other months. Genes involved in chitin metabolism, associated with mussel nutrition and digestion, showed higher expression during summer. Moreover, we found different gene expression patterns in the digestive glands of males and females during the four stages of mussel gonadal development. Microarray data from gonadal transcripts also displayed clear patterns during the different developmental phases with peak relative mRNA abundance at the ripe phase (stage III) for both sexes. Conclusion: These data showed a clear temporal pattern in gene expression profiles of mussels sampled over an annual cycle. Physiological response to thermal variation, food availability, and reproductive status across months may contribute to variation in gene expression. Mantle tissue from individual animals in different gonad maturation stages were analyzed in a complete loop design. Dual color competitive hybridizations (stage 4 vs stage 1, 2 vs 1, 3 vs 2, 4 vs 3) including label swap. Single individuals. Four biological replicates. One replicate per array.
Project description:The aim of this study was to profile transcriptome data, in particular circRNA expression, in lymph node tumour specimens from patients with Mantle Cell Lymphoma at diagnosis
Project description:Transcriptional profiling of the mantle tissue across the four stages of male gonads development (winter peak) in a natural population of the marine mussel Mytilus galloprovincialis sampled in the Bizerta Lagoon, Tunisia, across November 2007 -March 2008. Background: Seasonal environmental changes may affect the physiology of Mytilus galloprovincialis (Lam.), an intertidal filter-feeder bivalve occurring commonly in Mediterranean and Atlantic coastal areas. We investigated seasonal variations in relative transcript abundance of the digestive gland and the mantle (gonads) of males and females. To identify gene expression trends, we used a medium-density cDNA microarray (1.7 K probes) in dual-color competitive hybridization analyses. Results: Hierarchical clustering of digestive gland microarray data showed two main branches, distinguishing profiles associated with the “hot” months (May–August) from the other months. Genes involved in chitin metabolism, associated with mussel nutrition and digestion, showed higher expression during summer. Moreover, we found different gene expression patterns in the digestive glands of males and females during the four stages of mussel gonadal development. Microarray data from gonadal transcripts also displayed clear patterns during the different developmental phases with peak relative mRNA abundance at the ripe phase (stage III) for both sexes. Conclusion: These data showed a clear temporal pattern in gene expression profiles of mussels sampled over an annual cycle. Physiological response to thermal variation, food availability, and reproductive status across months may contribute to variation in gene expression.
Project description:Transcriptional profiling of the mantle tissue across the four stages of female gonads development (winter peak) in a natural population of the marine mussel Mytilus galloprovincialis sampled in the Bizerta Lagoon, Tunisia, across November 2007 -March 2008. Background: Seasonal environmental changes may affect the physiology of Mytilus galloprovincialis (Lam.), an intertidal filter-feeder bivalve occurring commonly in Mediterranean and Atlantic coastal areas. We investigated seasonal variations in relative transcript abundance of the digestive gland and the mantle (gonads) of males and females. To identify gene expression trends, we used a medium-density cDNA microarray (1.7 K probes) in dual-color competitive hybridization analyses. Results: Hierarchical clustering of digestive gland microarray data showed two main branches, distinguishing profiles associated with the “hot” months (May–August) from the other months. Genes involved in chitin metabolism, associated with mussel nutrition and digestion, showed higher expression during summer. Moreover, we found different gene expression patterns in the digestive glands of males and females during the four stages of mussel gonadal development. Microarray data from gonadal transcripts also displayed clear patterns during the different developmental phases with peak relative mRNA abundance at the ripe phase (stage III) for both sexes. Conclusion: These data showed a clear temporal pattern in gene expression profiles of mussels sampled over an annual cycle. Physiological response to thermal variation, food availability, and reproductive status across months may contribute to variation in gene expression.
Project description:Identify biological processes leading to heart valve disease upon long-term oral administration of serotonin, pergolide and dexfenfluramine Transcriptome profiling of tricuspid valves isolated from the drug treateds rabbit groups and compared to control rabbits using RNA sequencing Distinct patterns of differentially expressed genes (DEGs) highlight common and specific biological processes of drug treatment in tricuspid valves
Project description:We explored gene expression profile of human aortic valves in patients with or without aortic stenosis. The dataset that we generated constitutes a large-scale quantitative measurements of gene expression in normal and stenotic human valves. The goal was to compare gene expression levels between the two groups and identified a list of genes that are up- or down-regulated in aortic stenosis. Keywords: disease state analysis Gene expression was performed on ten normal and ten aortic stenosis valves
Project description:Sepioloidea lineolata, the striped pyjama squid (family Sepidariidae), is a small species of benthic squid distributed along the Southern Indo-Pacfic coast of Australia. All Sepiadariid squids are known to secrete large volumes of viscous slime when stressed. The proteome of the slime, dorsal and ventral mantle muscle, the dorsal and ventral mantle epithelium and ventral mantle glands was analysed by combining label-free quantitative analysis using high resolution mass spectrometry data with an S. lineolata transcriptome assembled from give tissues including slime. A total of 28 highly positively differentially expressed proteins were identified within the slime and were predominately comprised of a host of enzymes including peptidases and protease inhibitors. Seven of these proteins contained predicted signal peptides, indicating classical secretion, with four proteins having no identifiable domains or similarity to any known proteins.