Project description:Although sarcopenia is evident from the fifth decade, mechanisms leading to this phenomenon start earlier, emphasizing the importance of defining biomarkers related to the onset of muscle weakness. To this aim, a transcriptome analysis will be performed on muscle cell cultures (myoblasts) obtained from adult donors of different ages. Any biomarkers identified by this analysis will be confirmed by western blot and immunostatining. We will then assess the role of those biomarkers in muscle aging. Human myoblasts were extracted from the quadriceps of young (15-20 years old) and elderly (>70 years old) healthy subjects . The muscle cell population has been sorted using CD56 MACS beads. The myogenicity and the life span analysis of each muscle cell extract have been determined.
Project description:Transcriptomes of mouse mural granulosa cells were sequenced to identify transcripts expressed in mural granulosa cells of ovaries. Moreover, transcriptomes of cumulus cells were compared between those of young (2 month-old) and old mice (10 month-old) to assess the effects of ageing on cumulus cells. In addition, transcriptomes of cumulus-oocyte complexes were compared between DBA/2 and (C57BL/6 x DBA/2)F1 mice to assess the strain differences.
Project description:Comparison of gene expression pattern profiles of bone derived Ezh2 heterozygous (Het) mesenchymal cells versuss wild type mesenchymal cells isolated from young (3 month old; 3M) and aged (12 month old; 12M) mice.
Project description:B-1a cells are important immune cells, serving as the first line of defense against pathogens. B-1a cell undergo a series of alterations during aging and decrease the protection to our body. However, the characteristics of B-1a cells during the aging process are not fully understood. In this study, we discrible transcriptional and epigenetic profiles of B-1a from 3-month-old and 24-month-old mice across both genders. Interestingly,We found that the expression of the transcription factor Bcl11a was positively correlated with the number of B-1a cells in aged male and aged female mice.To further characterize senescent B-1a cells and the mechanisms of Bcl11a regulates B-1a. ATAC-seq and RNA-seq were performed on the B-1a isolated from young male mice (3-month-old),old male mice (24-month-old mice), young female mice (3-month-old),old female mice (24-month-old mice) of C57BL/6,and Bcl11a delated young male mice. CUT&tag was performed on the B-1a isolated from young male mice. Collectively, we provide a comprehensive resource to decode the aging process of B-1a, shedding light on how Bcl11a regulate B-1a cells maintenance.
Project description:B-1a cells are important immune cells, serving as the first line of defense against pathogens. B-1a cell undergo a series of alterations during aging and decrease the protection to our body. However, the characteristics of B-1a cells during the aging process are not fully understood. In this study, we discrible transcriptional and epigenetic profiles of B-1a from 3-month-old and 24-month-old mice across both genders. Interestingly,We found that the expression of the transcription factor Bcl11a was positively correlated with the number of B-1a cells in aged male and aged female mice.To further characterize senescent B-1a cells and the mechanisms of Bcl11a regulates B-1a. ATAC-seq and RNA-seq were performed on the B-1a isolated from young male mice (3-month-old),old male mice (24-month-old mice), young female mice (3-month-old),old female mice (24-month-old mice) of C57BL/6,and Bcl11a delated young male mice. CUT&tag was performed on the B-1a isolated from young male mice. Collectively, we provide a comprehensive resource to decode the aging process of B-1a, shedding light on how Bcl11a regulate B-1a cells maintenance.
Project description:B-1a cells are important immune cells, serving as the first line of defense against pathogens. B-1a cell undergo a series of alterations during aging and decrease the protection to our body. However, the characteristics of B-1a cells during the aging process are not fully understood. In this study, we discrible transcriptional and epigenetic profiles of B-1a from 3-month-old and 24-month-old mice across both genders. Interestingly,We found that the expression of the transcription factor Bcl11a was positively correlated with the number of B-1a cells in aged male and aged female mice.To further characterize senescent B-1a cells and the mechanisms of Bcl11a regulates B-1a. ATAC-seq and RNA-seq were performed on the B-1a isolated from young male mice (3-month-old),old male mice (24-month-old mice), young female mice (3-month-old),old female mice (24-month-old mice) of C57BL/6,and Bcl11a delated young male mice. CUT&tag was performed on the B-1a isolated from young male mice. Collectively, we provide a comprehensive resource to decode the aging process of B-1a, shedding light on how Bcl11a regulate B-1a cells maintenance.