PMID- 437834 OWN - NLM STAT- MEDLINE DCOM- 19790716 LR - 20181130 IS - 0019-2805 (Print) IS - 1365-2567 (Electronic) IS - 0019-2805 (Linking) VI - 36 IP - 2 DP - 1979 Feb TI - The metabolism of nucleic acids in mice. PG - 323-9 AB - The metabolism of three forms of nucleic acid, native-DNA (N-DNA), single strand DNA (SS-DNA), and polyinosinic-polycytidylic acid (poly I : C), was investigated in vivo in randomly bred Swiss-Webster mice. Clearance of these substances from the circulation and tissue localization were determined at selected time intervals following the intravenous injection of 125I-labelled compounds. N- and ss-DNA were removed from the circulation more rapidly than was poly I : C. All three materials localized principally in reticuloendothelial-rich organs, i.e. liver and spleen. N-DNA was degraded by the liver more slowly than was poly I : C or ss-DNA. At 4 h following injection, the liver contained 26%, 13%, and 10% of the injected doses, respectively. Three days after injection, 4.5% of the N-DNA persisted in the liver, as compared to only 0.6% of the poly I : C, and 0.2% of the ss-DNA. The possiblity that these differences in metabolism of N-DNA, poly I: C, and ss-DNA may be related to their differing immunogenic potentials in experimental systems is discussed. FAU - Chia, D AU - Chia D FAU - Dorsch, C A AU - Dorsch CA FAU - Levy, L AU - Levy L FAU - Barnett, E V AU - Barnett EV LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Immunology JT - Immunology JID - 0374672 RN - 0 (DNA, Single-Stranded) RN - 9007-49-2 (DNA) RN - O84C90HH2L (Poly I-C) SB - IM MH - Animals MH - DNA/*metabolism MH - DNA, Single-Stranded/metabolism MH - Gastric Mucosa/metabolism MH - Liver/metabolism MH - Male MH - Metabolic Clearance Rate MH - Mice MH - Molecular Weight MH - Poly I-C/*metabolism MH - Spleen/metabolism MH - Tissue Distribution PMC - PMC1457485 EDAT- 1979/02/01 00:00 MHDA- 1979/02/01 00:01 PMCR- 1980/02/01 CRDT- 1979/02/01 00:00 PHST- 1979/02/01 00:00 [pubmed] PHST- 1979/02/01 00:01 [medline] PHST- 1979/02/01 00:00 [entrez] PHST- 1980/02/01 00:00 [pmc-release] PST - ppublish SO - Immunology. 1979 Feb;36(2):323-9.