Disruption of the adenosine deaminase gene causes hepatocellular impairment and perinatal lethality in mice.

M Wakamiya, MR Blackburn… - Proceedings of the …, 1995 - National Acad Sciences
M Wakamiya, MR Blackburn, R Jurecic, MJ McArthur, RS Geske, J Cartwright Jr, K Mitani…
Proceedings of the National Academy of Sciences, 1995National Acad Sciences
We have generated mice with a null mutation at the Ada locus, which encodes the purine
catabolic enzyme adenosine deaminase (ADA, EC 3.5. 4.4). ADA-deficient fetuses exhibited
hepatocellular impairment and died perinatally. Their lymphoid tissues were not largely
affected. Accumulation of ADA substrates was detectable in ADA-deficient conceptuses as
early as 12.5 days postcoitum, dramatically increasing during late in utero development, and
is the likely cause of liver damage and fetal death. The results presented here demonstrate …
We have generated mice with a null mutation at the Ada locus, which encodes the purine catabolic enzyme adenosine deaminase (ADA, EC 3.5.4.4). ADA-deficient fetuses exhibited hepatocellular impairment and died perinatally. Their lymphoid tissues were not largely affected. Accumulation of ADA substrates was detectable in ADA-deficient conceptuses as early as 12.5 days postcoitum, dramatically increasing during late in utero development, and is the likely cause of liver damage and fetal death. The results presented here demonstrate that ADA is important for the homeostatic maintenance of purines in mice.
National Acad Sciences