426
|
Ichikawa A, Esumi K, Takagi M, Yatsunami K, Negishi M, Yokoyama K, Tomita K. Effect of adenosine and adenosine 5'-monophosphate on cell division of cultured mastocytoma P-815 cells. JOURNAL OF PHARMACOBIO-DYNAMICS 1980; 3:123-35. [PMID: 6259314 DOI: 10.1248/bpb1978.3.123] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The growth of mouse mastocytoma P-815 cells in culture (37 degrees, 42 hr) was inhibited by exogenous adenosine (0.2 to 1.0 mM) and more effectively by AMP (0.01 to 0.1 mM), but not by adenine. The inhibited growth (a 25% inhibition by 0.5 mM adenosine and a 80% inhibition by 0.25 mM AMP) was restored to a near control level by the addition of uridine (0.5 mM) to the medium. The pretreatment (37 degrees, 3 hr) of the cells with adenosine or AMP caused a 60% inhibition of incorporation (37 degrees, 2 hr) of [U-14C]aspartate into uracil nucleotides, accumulating 14C-orotate and orotidine. Both dipyridamole, an inhibitor of adenosine uptake, and exogenous adenosine deaminase suppressed the growth inhibition induced by not only adenosine but also AMP. 2-Chloroadenosine, which is resistant to the action of adenosine deaminase, was a more potent growth inhibitor, while 3'AMP and 2'-AMP, which are not hydrolyzed to adenosine by membrane 5'-nucleotidase, were ineffective. Adenosine 5'-sulfate and other 5'-substituted adenosines were also ineffective. These observations indicate that AMP inhibits the growth of mastocytoma P-815 cells as a result of its continuous conversion to adenosine and a constant exposure of the cells to a low concentration of adenosine which readily permeates the cell membrane. In addition, adenosine, AMP and their agarose-linked forms rapidly (37 degrees, 20 min) elevated cellular levels of cAMP. This effect was not suppressed by dipyridamole. Apparently adenosine and AMP also act extracellularly for growth inhibition by regulating cAMP levels.
Collapse
|
427
|
Bar-Nun S, Kreibich G, Adesnik M, Alterman L, Negishi M, Sabatini DD. Synthesis and insertion of cytochrome P-450 into endoplasmic reticulum membranes. Proc Natl Acad Sci U S A 1980; 77:965-9. [PMID: 6767247 PMCID: PMC348404 DOI: 10.1073/pnas.77.2.965] [Citation(s) in RCA: 142] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Treatment of rats with phenobarbital leads to a substantial increase in levels of translatable liver cytochrome P-450 mRNA. This mRNA is primarily associated with ribosomes bound to endoplasmic reticulum membranes which in an in vitro system synthesized approximately 10 times more cytochrome P-450 than did free polysomes from the same animals. Cytochrome P-450 synthesized by rough microsomes in vitro appears to be directly inserted into the membranes because it was not released by a treatment with low detergent concentrations that released albumin and other microsomal content proteins. The amino-terminal amino acid sequence of cytochrome P-450 synthesized in an mRNA-dependent system resembles in hydrophobicity the signal segment of presecretory proteins and therefore may serve to insert the polypeptide into the membrane during synthesis. In contrast to the situation with secretory proteins and several other membrane proteins, however, the putative insertion signal of cytochrome P-450 is not removed by a membrane-associated peptidase and remains in the mature polypeptide.
Collapse
|
428
|
Negishi M, Nebert DW. Structural gene products of the Ah locus. Genetic and immunochemical evidence for two forms of mouse liver cytochrome P-450 induced by 3-methylcholanthrene. J Biol Chem 1979; 254:11015-23. [PMID: 500620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
429
|
Negishi M, Nebert D. Structural gene products of the Ah locus. Genetic and immunochemical evidence for two forms of mouse liver cytochrome P-450 induced by 3-methylcholanthrene. J Biol Chem 1979. [DOI: 10.1016/s0021-9258(19)86624-3] [Citation(s) in RCA: 135] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
430
|
Masuda-Mikawa R, Fujii-Kuriyama Y, Negishi M, Tashiro Y. Purification and partial characterization of hepatic microsomal cytochrome P-450s from phenobarbital- and 3-methylcholanthrene-treated rats. J Biochem 1979; 86:1383-94. [PMID: 118169 DOI: 10.1093/oxfordjournals.jbchem.a132655] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hepatic microsomal cytochrome P-450 and P-448 have been purified from phenobarbital (PB)- and 3-methylcholanthrene (MC)-treated rats, by modifications of Imai and Sato's procedures )1974). The purified preparations of cytochrome P-450 and P-448 were homogeneous judging from their specific contents (17 and 16 nmol per mg protein, respectively) and the results of SDS-polyacrylamide gel electrophoresis and Ouchterlony immunodiffusion analyses. These two cytochromes are different in their physico-chemical and immunological properties, and their substrate specificities. In reconstituted systems containing the purified cytochrome and NADPH-cytochrome P-450 reductase, ethoxycoumarin deethylation and benzo(a)pyrene hydroxylation catalyzed by cytochrome P-450 and P-448 were completely inhibited by the homologous antibody, while essentially no effect was observed with heterologous conbinations of antigen and antibody. In contrast, the benzphetamine demethylation activities of cytochrome P-450 and P-448 were markedly inhibited by the heterologous antibody as well as by the homologous one. These results suggest that the two cytochromes are immunologically different but have some antigenic determinants in common. Drug metabolizing activities of microsomes from PB- and MC-treated rats were inhibited by the antibodies, essentially as expected from the results with the reconstituted systems. The remaining activities in the presence of excess concentrations of the antibody, however, were higher in MC-microsomes treated with anti P-448 antibody than in PB microsomes treated with anti P-450 antibody. These results suggest that cytochrome P-448 molecules may be so localized in the microsomal membrane that the membrane structure may hinder the access of the antibody to the antigenic determinant.
Collapse
|
431
|
Guenthner TM, Negishi M, Nebert DW. Separation of acetanilide and its hydroxylated metabolites and quantitative determination of "acetanilide 4-hydroxylase activity" by high-pressure liquid chromatography. Anal Biochem 1979; 96:201-7. [PMID: 495983 DOI: 10.1016/0003-2697(79)90573-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
432
|
Fujii-Kuriyama Y, Negishi M, Mikawa R, Tashiro Y. Biosynthesis of cytochrome P-450 on membrane-bound ribosomes and its subsequent incorporation into rough and smooth microsomes in rat hepatocytes. J Cell Biol 1979; 81:510-9. [PMID: 457773 PMCID: PMC2110398 DOI: 10.1083/jcb.81.3.510] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Intracellular sites of synthesis of cytochrome P-450 and the subsequent incorporation of it into membrane structures of the endoplasmic reticulum (ER) in rat hepatocytes have been studied using an antibody monospecific for phenobarbital-inducible cytochrome P-450. The cytochrome is synthesized mainly on the "tightly bound" type of membrane-bound ribosomes whose release from the membrane requires treatment with puromycin in a high salt buffer (500 mM KCI, 5mM MgCl2, and 50 mM Tris-HCL [pH 7.5]). Subsequently the cytochrome is incorporated directly into the rough ER membranes with its major part exposed to the outer surface to the membrane and accessible to proteolytic enzymes added externally. The newly synthesized molecules, which appeared first in the rough membrane, are translocated to the smooth membrane, and are then distributed evenly between the two types of microsomeal membranes in approximately 1 h. Administration of cycloheximide, an inhibitor of protein biosynthesis, did not significantly inhibit the transfer of the enzyme from the rough to the smooth ER. It is suggested, therefore, that the translocation of the newly synthesized cythochrome P-450 between the rough and smooth microsomes is mainly due to the lateral movement of the molecules in the plane of the membranes rather than to the attachment and detachment of the ribosomes on the microsomal membranes after the ribosomal cycle for protein synthesis.
Collapse
|
433
|
Nakazawa H, Toyama K, Ogawa T, Negishi M. [A case of chronic lymphocytic leukemia complicated with autoimmune hemolytic anemia (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1979; 20:528-34. [PMID: 459107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
434
|
Toyama K, Kaneko J, Suzuki H, Negishi M, Nakada I, Tobita K, Katayama T. [Treatment of aplastic anemia with mepitiostane (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1979; 20:121-7. [PMID: 439410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
435
|
Negishi M, Kreibich G. Coordinated polypeptide synthesis and insertion of protoheme in cytochrome P-450 during development of endoplasmic reticulum membranes. J Biol Chem 1978; 253:4791-7. [PMID: 659449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
|
436
|
Negishi M, Kreibich G. Coordinated polypeptide synthesis and insertion of protoheme in cytochrome P-450 during development of endoplasmic reticulum membranes. J Biol Chem 1978. [DOI: 10.1016/s0021-9258(17)30459-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
437
|
Handa M, Negishi M, Suzuki H, Toyama K, Udagawa Y, Nemato K, Goto M. [A case of leukemia obtained complete remission after delivery (author's transl)]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1978; 19:351-5. [PMID: 702817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
438
|
Negishi M, Fukuyama H, Takahashi T. [Lymphokine-like substances in the synovial fluid of patients with chronic rheumatoid arthritis]. RYUMACHI. [RHEUMATISM] 1977; 17:17-26. [PMID: 847541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
439
|
Negishi M, Fujii-Kuriyama Y, Tashiro Y, Imai Y. Site of biosynthesis of cytochrome P450 in hepatocytes of phenobarbital treated rats. Biochem Biophys Res Commun 1976; 71:1153-60. [PMID: 971305 DOI: 10.1016/0006-291x(76)90774-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
440
|
Takahashi T, Fukuyama H, Sakamaki H, Negishi M. [Virus antigen-antibody complex]. NIHON RINSHO. JAPANESE JOURNAL OF CLINICAL MEDICINE 1975; 33:2762-7. [PMID: 127857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
441
|
Shinada T, Yokota Y, Negishi M, Nakamura J. [The effect of low dosage of cyclofenil on oligoovulatory sterile women (author's transl)]. NIHON FUNIN GAKKAI ZASSHI 1975; 20:41-4. [PMID: 1172476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
442
|
Negishi M, Sawamura T, Morimoto T, Tashiro Y. Localization of nascent NADPH-cytochrome c reductase in rat liver microsomes. BIOCHIMICA ET BIOPHYSICA ACTA 1975; 381:215-20. [PMID: 1111586 DOI: 10.1016/0304-4165(75)90203-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Rat liver microsomes incubated with [3H] puromycin in high salt buffer were digested with a mixture of protease, trypsin and chymotrypsin, in both the presence and absence of 1 % deoxycholate. Our observations revealed that the proteolysis of peptidyl puromycin labeled with [3H] puromycin was at least partially protected by the presence of microsomal membrane. Immuno-chemical analyses have further shown that most of the nascent NADPH-cytochrome c reductase in the microsomes was digested with the proteases while serum albumin was effectively protected from the digestion. It is thus proposed that NADPH-cytochrome c reductase synthesized on the membrane bound ribosomes is not transported to the vesicular cavity but directly to the outer surface of the microsomal membrane in a form which is accessible to the proteases.
Collapse
|
443
|
Ooshio T, Negishi M, Hoshida M, Kawamura A, Tachikawa T. [Nodule formation of the skin, myocardium and lungs in a case of leukemia diagnosed postmortem]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 1974; 15:739-46. [PMID: 4473583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
444
|
Igarashi M, Nakamura J, Negishi M. [Physiopathology of follicle maturation and its diagnosis]. HORUMON TO RINSHO. CLINICAL ENDOCRINOLOGY 1974; 22:689-98. [PMID: 4473086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
445
|
Negishi M, Omura T. Turnover of enzyme proteins in microsomal membrane. Drug Metab Dispos 1973; 1:80-3. [PMID: 4149425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
446
|
Negishi M, Omura T. The early stage of labeling of microsomal membrane proteins in rat liver by radioactive amino acids. J Biochem 1972; 72:1407-17. [PMID: 4146375 DOI: 10.1093/oxfordjournals.jbchem.a130034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
|
447
|
|
448
|
Nakamura Y, Arthur JC, Negishi M, Doi K, Kageyama E, Kudo K. Rheological properties of elastomers based on cellulose fibers. J Appl Polym Sci 1970. [DOI: 10.1002/app.1970.070140405] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
449
|
Arai K, Komine S, Negishi M. Endgroup analysis of isolated poly(methyl methacrylate) from graft copolymers of wool. JOURNAL OF POLYMER SCIENCE. PART A-1, POLYMER CHEMISTRY 1970; 8:917-27. [PMID: 5467260 DOI: 10.1002/pol.1970.150080409] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
450
|
Nakayama T, Yaginuma T, Negishi M, Matsuda A. Bio- and histochemical studies on enzymes in steroidogenesis in the adrenal cortex of maturing rats. ENDOCRINOLOGIA JAPONICA 1968; 15:425-37. [PMID: 4180119 DOI: 10.1507/endocrj1954.15.425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|