Project description:The function of ID4 in CLL development was studied in vivo using TCL1 transgenic mouse model that develop leukemia similar to human CLL. TCL1 mice with ID4 single knockout gene have accelerated CLL progression. Results from the animal study suggest ID4 as a tumor suppressor gene that might regulate cell proliferation and apoptosis in B lymphocytes. Gene expression in CD19-positive splenic B cells collected from 1-month old ID4+/-TCL1-tg and ID4+/+TCL1-tg mice was compared by microarray, the goal is to find ID4-regulated genes involved in CLL development.
Project description:mRNA profiles of Treg, CD4+, CD8+, CD19+ splenic cells from 8-week-old Foxp3 YFP/cre mice incubated with control (WT) or leukemic (TCL1) extracellular vesicles (EV) were analyzed in triplicate.
Project description:mRNA profiles of Treg, CD4+, CD8+, CD19+ splenic cells from 8-week-old Foxp3 YFP/cre mice injected with control (WT) or leukemic (TCL1) extracellular vesicles (EV) were analyzed in triplicate.
Project description:Tcl1 tg mice develop a chronic lymphocytic leukemia (CLL) -like disease. To investigate the contribution of the adhesion molecule CD44 to CLL pathophysiology, we developed a CD19Cre CD44flox/flox Tcl1 tg mouse with a B cell specific CD44 deficiency (CD44ΔB Tcl1 tg). We used the Clariom S mouse microarray from Affymetrix to investigate transcriptional differeneces between Tcl1 tg and CD44ΔB Tcl1 tg mice
Project description:High intensity exercise (HIE) has become a prominent training modality used to ameliorate cardiac disease conditions. The effects of HIE training on Hypertrophic Cardiomyopathy (HCM) have not been previously studied in animal models or in patients, largely due to concerns about triggering sudden arrhythmic events. Employing a transgenic cardiac troponin (cTnT-160E or TG) preclinical murine model that closely recapitulates human HCM, we evaluated the effects of a High Intensity Interval Training (HIIT) protocol on cardiorespiratory capacity (i.e., peak oxygen consumption or pVO2), which is a significant prognostic indicator of disease trajectory. 14 month old TG male mice had lower peak VO2 than non-transgenic (NTG) male mice of the same age at baseline, but there was no difference in pVO2 in female TG compared to nTG mice. HIIT significantly improved pVO2 in both nTG female (18%) , nTG male (18%), TG female (16%) and TG male (12%) mice compared to sedentary controls. There were no changes in structure, function or LV mass as measured by echocardiography or post mortem analyses in any of the groups, and no effect of HIIT on cardiac fibrosis. HIIT led to significant increases in lean muscle mass in both nTG and TG male mice, and nTG female mice but not TG female mice. The results of our study provide foundational evidence that HIE can improve pVO2 in HCM without adverse effects on disease phenotype.
Project description:TCL1 is an an oncogene and transgenic (Tg) mice expressing TCL1 specifically in B-cells are well-characterized models for chronic lymphocytic leukemia. On the contrary, PTPROt is a phosphatase with tumor suppressor characteristics in many cancers including leukemia. Our hypothesis was that transgenic expression of PTPROt in the B-cells of TCL1 Tg mice will alleviate disease phenotype and allow the study of the in vivo mechanism of action of PTPROt. To test this we have generated Tg mice with B-cell specific expression of PTPROt and crossed these mice with the TCL1 Tg mice.
Project description:To describe the protein profile in hippocampus, colon and ileum tissue’ changing after the old faeces transplants, we adopted a quantitative label free proteomics approach.
