A DNA sequence situated in the human genome between Alu-repeat clusters ("Inter-Alu" DNA) is progressively amplified in extrachromosomal DNA, including covalently closed DNA circles, during serial passage of diploid fibroblasts. A single size-class of Inter-Alu circles is also amplified in lymphocytes from 16 of 24 old donors and yet is not detected in cells from 18 young donors.
CITATION STYLE
Lumpkin, C. K., McGill, J. R., Riabowol, K. T., Moerman, E. J., Reis, R. J., & Goldstein, S. (1985). Extrachromosomal circular DNA and aging cells. Advances in Experimental Medicine and Biology, 190, 479–493. https://doi.org/10.1007/978-1-4684-7853-2_24
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