Project description:The extremotolerant rock-associated black fungus Knufia chersonesos and its nonmelanized spontaneous mutant were selected for a proteomic-based screening towards polyesterases. A non-labeling shotgun analysis of the secretome was performed to compare control and treatment condition (PBAT added to the cultivation media) as well as Wt and Mut.
Project description:Proteome and secretome of the extremotolerant rock black fungus Knufia chersonesos and its nonmelanized spontaneous mutant were analyzed following the fungus growth under LSSMG in rotating bioreactors (High Aspect Ratio Vessels; HARV). Tandem Mass Tags (TMS)-based quantitative shotgun proteomics was applied to compare gravity to microgravity conditions as well as to elucidate differences in the response between wild type and mutant strain.
Project description:Candida lusitaniae is an emerging human opportunistic yeast, which can switch from yeast to pseudohyphae, and one of the rare Candida species capable of sexual reproduction. Its haploid genome and the genetic tools available make it a model of interest to study gene function. This study describes the consequences of DPP3 inactivation on cell morphology and mating, both altered in the dpp3Δ knock-out. Interestingly, reintroducing a wild-type copy of the DPP3 gene in the dpp3Δ mutant failed to restore the wild-type phenotypes. Proteomic analyses showed that about 150 proteins were statistically deregulated in the dpp3Δ mutant, and that most of them did not return to their wild-type level in the reconstituted DPP3 strain. The analysis of the segregation of the dpp3Δ mutation and the phenotypes in the progeny of a cross (between the dpp3Δ knock-out and a wild-type strain) showed that the phenotypes are not linked to dpp3Δ, but to a secondary mutation. Genome sequencing of the dpp3Δ mutant allowed us to identify this secondary mutation.
Project description:Primary objectives: The primary objective is to investigate circulating tumor DNA (ctDNA) via deep sequencing for mutation detection and by whole genome sequencing for copy number analyses before start (baseline) with regorafenib and at defined time points during administration of regorafenib for treatment efficacy in colorectal cancer patients in terms of overall survival (OS).
Primary endpoints: circulating tumor DNA (ctDNA) via deep sequencing for mutation detection and by whole genome sequencing for copy number analyses before start (baseline) with regorafenib and at defined time points during administration of regorafenib for treatment efficacy in colorectal cancer patients in terms of overall survival (OS).