Project description:The carotid body (CB) is a major arterial chemoreceptor containing glomus cells whose activities are regulated by changes in arterial blood contents including oxygen. We employed the single cell RNASeq method by performing next-generation sequencing on single glomus cellderived cDNAs to eliminate contamination of genes derived from other cell types present in the CB. This study has generated a CB expression profile containing novel glomus cell specific genes. The wealth of information provided through this study offers a valuable foundation for identifying molecules functioning in the CB.
Project description:The carotid body (CB) is a major arterial chemoreceptor containing glomus cells whose activities are regulated by changes in arterial blood contents including oxygen. We employed the single cell RNAÂSeq method by performing next-generation sequencing on single glomus cellÂderived cDNAs to eliminate contamination of genes derived from other cell types present in the CB. This study has generated a CB expression profile containing novel glomus cell specific genes. The wealth of information provided through this study offers a valuable foundation for identifying molecules functioning in the CB. 8 single CB glomus cells that were confirmed expressing tyrosine hydroxylase (Th), ubiquitin carboxyl-terminal esterase L1 (Uchl1) and potassium channel subfamily K member 3 (Kcnk3) were harvested from P4-5 wild type mice and subjected to single-cell RNA-Seq
Project description:Transcriptome analysis of Wigglesworthia glossinidia endosymbiont derived from uninfected and infected samples at 3 time points (3, 10 and 20 days). Expression profiling by array - Wigglesworthia glossinidia endosymbiont of Glossina morsitans morsitans
Project description:Transcriptome analysis of Wigglesworthia glossinidia endosymbiont derived from control samples with or without parasite contact at 10 days. Expression profiling by array - Wigglesworthia glossinidia endosymbiont of Glossina morsitans morsitans
Project description:Endosymbiotic bacteria associated with eukaryotic hosts are omnipresent in nature, particularly in insects. Studying the bacterial side of host-symbiont interactions is, however, often limited by the unculturability and genetic intractability of the symbionts. Spiroplasma poulsonii is a maternally transmitted bacterial endosymbiont that is naturally associated with several Drosophila species. S. poulsonii strongly affects its host’s physiology, for example by causing male killing or by protecting it against various parasites. Despite intense work on this model since the 1950s, attempts to cultivate endosymbiotic Spiroplasma in vitro have failed so far. Here, we developed a method to sustain the in vitro culture of S. poulsonii by optimizing a commercially accessible medium. We also provide a complete genome assembly, including the first sequence of a natural plasmid of an endosymbiotic Spiroplasma species. Last, by comparing the transcriptome of the in vitro culture to the transcriptome of bacteria extracted from the host, we identified genes putatively involved in host-symbiont interactions. This work provides new opportunities to study the physiology of endosymbiotic Spiroplasma and paves the way to dissect insect-endosymbiont interactions with two genetically tractable partners.