PMID- 4008276 OWN - NLM STAT- MEDLINE DCOM- 19850820 LR - 20190829 IS - 0301-5564 (Print) IS - 0301-5564 (Linking) VI - 82 IP - 4 DP - 1985 TI - Microfluorometric estimates of proteins associated with murine hepatocyte and thymocyte nuclei, residual structures, and nuclear matrix derivatives. PG - 331-9 AB - Isolated diploid hepatocyte and thymocyte nuclei and their derivatives ("residual structures" and nuclear matrices, as defined by Kaufmann et al. 1981) were evaluated by microfluorometry following reaction with the following fluorochromes: brilliant sulfaflavine (BSF) used at pH 2.8 for the demonstration of total protein; acridine orange (AO) used at pH 9.0 to reveal acidic groups of proteins; and 3-(4-maleimidylphenyl)-7-diethylamino-4-methylcoumarin (CPM) used under conditions required to demonstrate the sum of sulfhydryl (SH) and disulfide (SS) groups of proteins. The results suggested that the proteins reacting with AO and CPM differed from each other and from those revealed by fluorochroming with BSF. In every comparison, hepatocyte nuclei and their derivatives were more fluorescent than the respective populations of thymocyte nuclei and their derivatives. In material fluorochromed with BSF and AO, nuclear matrices were less fluorescent than residual structures, which, in turn, were less fluorescent than intact nuclei. In contrast, nuclear matrices fluorochromed with CPM were less fluorescent than intact nuclei but more fluorescent (paradoxically) than residual structures. The ratios of the total fluorescence values of hepatocyte and thymocyte nuclei fluorochromed with BSF changed significantly during extractions required to produce residual structures and nuclear matrices, while comparable ratios in material fluorochromed with AO or CPM did not change significantly. Comparisons of the ratios of the fluorescence values of intact nuclei and their derivatives in a variety of combinations yielded complex and variable results.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Curtis, S K AU - Curtis SK FAU - Cowden, R R AU - Cowden RR LA - eng PT - Comparative Study PT - Journal Article PL - Germany TA - Histochemistry JT - Histochemistry JID - 0411300 RN - 0 (Coumarins) RN - 0 (Fluorescent Dyes) RN - 0 (Isoquinolines) RN - 0 (Nucleoproteins) RN - 2391-30-2 (brilliant sulfaflavine) RN - 76877-33-3 (N-(4-(7-diethylamino-4-methylcoumarin-3-yl)phenyl)maleimide) RN - F30N4O6XVV (Acridine Orange) SB - IM MH - Acridine Orange MH - Animals MH - Cell Fractionation/methods MH - Cell Nucleus/*analysis MH - Coumarins MH - Female MH - Flow Cytometry/*methods MH - Fluorescent Dyes MH - Isoquinolines MH - Liver/analysis/*cytology MH - Male MH - Mice MH - Mice, Inbred ICR MH - Nucleoproteins/*analysis MH - Thymus Gland/analysis/*cytology EDAT- 1985/01/01 00:00 MHDA- 1985/01/01 00:01 CRDT- 1985/01/01 00:00 PHST- 1985/01/01 00:00 [pubmed] PHST- 1985/01/01 00:01 [medline] PHST- 1985/01/01 00:00 [entrez] AID - 10.1007/BF00494061 [doi] PST - ppublish SO - Histochemistry. 1985;82(4):331-9. doi: 10.1007/BF00494061.