Abstract
Methylation patterns of MHC (major histocompatibility complex) class I and vKi-ras (viral Kirsten-ras) homologous sequences in normal and adenomatous rat pituitary glands were studied as a function of age by Southern hybridization analysis using the isoschizomers Hpa II and Msp I. Both MHC class I and vKi-ras homologous sequences were found to be hypomethylated in a number of tumors, compared to normal pituitary gland tissue. However, despite reports indicating a general demethylation in mammalian tissues in relation to donor age, age-related methylation changes in this apparently methylation-unstable and cancer-prone organ were not observed. (Aging 3: 141–146, 1991)
Original language | English (US) |
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Pages (from-to) | 141-146 |
Number of pages | 6 |
Journal | Aging Clinical and Experimental Research |
Volume | 3 |
Issue number | 2 |
DOIs | |
State | Published - Jun 1991 |
Externally published | Yes |
Keywords
- Aging
- DNA methylation
- MHC
- cKi-ras
- pituitary gland tumor
ASJC Scopus subject areas
- Aging
- Geriatrics and Gerontology