76
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Kosaka H, Sano Y, Matsukado Y, Sairenji T, Hinuma Y. Failure to detect papovavirus-associated T antigens in human brain tumor cells by anticomplement immunofluorescence. J Neurosurg 1980; 52:367-70. [PMID: 6987339 DOI: 10.3171/jns.1980.52.3.0367] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To probe the possible presence of papovavirus-related T antigen(s) in human brain tumors, the imprinted or cultured cells at various passage levels were examined by anticomplement immunofluorescence using antisera to T antigen of each BK virus, JC virus, and simian virus 40. No T antigen was demonstrated in any tests with cells derived from 69 patients with various brain tumors. Twenty-two tumor cell strains cultured in the presence of a tumor promoter, phorbol ester, also failed to show the T antigen.
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77
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Harada M, Sairenji T, Takaki K, Hinuma Y. IgM antibodies to Epstein-Barr virus-associated membrane antigen in sera of infectious mononucleosis patients. Microbiol Immunol 1980; 24:123-32. [PMID: 6247623 DOI: 10.1111/j.1348-0421.1980.tb00570.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
By the indirect immunofluorescence technique, IgM antibodies to the cell surface of an Epstein-Barr virus (EBV) producer cell line, P3HR-1, were detected in sera from infectious mononucleosis (IM) patients but not in sera from patients with Burkitt lymphoma or nasopharyngeal carcinoma nor in sera from healthy adult donors having antibodies to EBV-specific viral capsid antigen (VCA). Titers of the IgM antibodies were higher in the earlier stages of IM, a pattern similar to that for IgM antibodies to VCA. The IgM antibodies to the cell surface were identified as being those against the EBV-specific membrane antigen (MA) by the following criteria: (1) The antibodies were reactive to MA-positive cell preparations but to MA-negative cell preparations. (2) Titers of the IgM antibodies were not significantly affected after absorption of sera with sheep red blood cells which could completely eliminate heterophil antibodies in the same sera. Detection of the IgM antibodies to MA may have a particular diagnostic value for providing evidence of a recent EBV infection.
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78
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Matsumoto M, Tada Y, Yamaguchi J, Sairenji T, Hinuma Y. Further studies on inhibition of Epstein-Barr virus release by bovine serum: partial purification and characterization of the inhibitor. J Natl Cancer Inst 1980; 64:353-8. [PMID: 6243717 DOI: 10.1093/jnci/64.2.353] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The antivirus release factor (AVRF) was extracted from adult bovine serum and was partially purified in three steps by 1) ammonium sulfate precipitation, 2) Sephadex G-200 chromatography, and 3) DEAE-Sephadex chromatography, procedures that together increased specific activity 160 times. In molecular sieve chromatography, AVRF was found in fractions close to IgM. The AVRF activity was sensitive to KIO4 (0.04 M) but not to trypsin (0.1%), UV irradiation, ethyl ether, and heating at 56 degrees C for 30 minutes. The AVRF neither neutralized infectivity of Epstein-Barr virus (EBV) from the P3HR-1 cell line nor inhibited intracellular virus yields at concentrations that inhibited release of virus into culture fluid. Cellular release of two other strains of EBV (QIMR-WIL and B95-8) was also inhibited by AVRF. Electron microscopic examination of P3HR-1 cells cultured in the presence of AVRF revealed peculiar interacytoplasmic vacuoles containing many mature virus particles with tail-like structures.
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79
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Maeda M, Sairenji T, Hinuma Y. Reactivity of Paul-Bunnell type heterophile antibody in sera from infectious mononucleosis patients with the surface of lymphoid cells carrying Epstein-Barr virus genomes. Microbiol Immunol 1979; 23:1189-97. [PMID: 231730 DOI: 10.1111/j.1348-0421.1979.tb00551.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The possible presence of Paul-Bunnell (PB) antigen on Epstein-Barr virus (EBV)-transformed lymphocytes were investigated. Of 23 EBV genome-positive lymphoblastoid cell lines tested all but one absorbed PB type antibody from the serum of an infectious mononucleosis patient. The one EBV-negative B cell line tested did not absorb the heterophile antibody. PB antibody, purified by an immunoadsorbent procedure using beef cell antigen, reacted with the EBV producer P3HR-1 cell line in an indirect membrane immunofluorescence test and was shown to be IgM antibody. Titers of heterophile agglutinin and reactivity with the cell surface were reduced to the same degree by absorption with beef cell antigen but not with guinea pig kidney antigen. PB antibody was distinct from IgM antibody against the EBV-determined membrane antigen, since the latter was not absorbed by beef cell antigen. PB antibody was also reactive with other EBV-positive B cell lines (QIMR-WIL, NC-37, and Raji) which were free of surface IgM. No reaction occurred with the nonproducer P3HR-1 line, a null cell line, and two T cell lines. The results suggest the presence of PB antigen on most EBV-transformed B lymphocytes, and its appearance in each of the transformed lymphocytes of patients with acute infectious mononucleosis.
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80
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Iwaki J, Akagi M, Sairenji T, Hinuma Y. Inhibition of human leukocyte migration in agar by 3-M potassium chloride extracts of stomach, colon, and lung cancers. J Natl Cancer Inst 1979; 63:5-10. [PMID: 286834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Inhibition of leukocyte migration in agarose-agar was used as a probe for tumor-associated antigen in 3-M KCl solubilized extracts of gastric, colon, and lung cancers from humans. Twelve of 40 (30%) leukocyte preparations from gastric cancer patients, 10 of 21 (48%) from colon cancer patients, and 7 of 14 (50%) from lung cancer patients were inhibited by their respective histologically homologus cancer extract. However, among 75 preparations from various cancer patients, leukocytes from only 2 gastric cancer patients were inhibited by paired normal gastric tissue extracts. Only 2 of 68 preparations from normal individuals and none of 67 preparations from patients with nonmalignant diseases, such as gastric peptic ulcer, gastritis, colon polyposis, colitis, pulmonary tuberculosis, chronic bronchitis, and sarcoidosis, were inhibited by cancer extracts. These findings suggest the presence in KCl extracts of gastric cancer of presumed tumor-associated antigen(s) that is antigenically distinct from that of either colon or lung cancer.
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81
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Miyamoto K, Sairenji T, Hinuma Y. Electron microscopic studies of tumor viruses. II. Entry and uncoating of Epstein-Barr virus. Microbiol Immunol 1978; 22:463-74. [PMID: 214669 DOI: 10.1111/j.1348-0421.1978.tb00392.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Entry of Epstein-Barr virus into human lymphoblastoid cells (Daudi cells) was studied by electron microscopy. At the site of viral attachment, two distinct interactions conducive to penetration of the virus occurred between the viral envelope and cell membrane, namely, (i) simultaneous dissolution of both the envelope and cell membrane, presumably resulting in passage of viral capsids into the cytoplasm and (ii) dissolution confined to the cell membrane with resulting penetration of enveloped virus. In the latter case envelope dissolution appears to occur subsequently in the cytoplasm with release of capsids. Fusion of the viral envelope with the cell membrane was not observed. The capsids exhibited two distinct structural forms--one dense, the other translucent or light in appearance. The former disrupted near the cell membrane with release of viral cores into the cytoplasm whereas the light capsids containing dense cores migrated toward the nucleus and accumulated in the perinuclear region. Apparently the process of releasing deoxyribonucleic acid (DNA) from the light capsid is slowed down or prevented in Daudi cells. A hypothesis is presented concerning the manner in which these two types of capsids initiate infection.
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82
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Miyoshi I, Hiraki S, Tsubota T, Uno J, Nakamura K, Ota T, Hikita T, Hayashi K, Kataoka M, Tanaka T, Kimura I, Sairenji T, Hinuma Y. Epstein-Barr virus-positive Japanese Burkitt lymphoma. GAN 1978; 69:449-50. [PMID: 208908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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83
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Suzuki T, Oboshi S, Ishihara N, Emura I, Ohnishi Y, Sairenji T, Hinuma Y. Detection of Epstein-Barr virus in biopsied malignant lymphoma cell and its continuous culture. GAN 1978; 69:213-21. [PMID: 210075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In more than 80% of tumor cells in the pericardiac effusion of a case of malignant B-cell lymphoma, Epstein-Barr virus-determined nuclear antigen (EBNA) was detected by the anticomplement immunofluorescence test. Moreover, herpestype virus particles, although few in number, were demonstrated in the nucleus of lymphoma cells by an electron microscope. Tumor cells in the pericardiac effusion were seeded at 98% purity after centrifugation on Ficoll-Conray and, soon after plating, they proliferated continuously without any lag phase of growth or cell death. Therefore, the established cell line was regarded as of tumor cell origin and named Fujimaki-II cell after patient's name. On the other hand, Fujimaki-I cells were established from the biopsied tumor in the same way. These two cell lines, B-lymphocyte in nature, had both EB virus-related antigens and herpes-types virus particles. Heterotransplantation of cultured cells and tumor tissue obtained at autopsy into athymic nude mice was not successful. Transformation of cord blood lymphocytes by the virus released from Fujimaki-II cell also failed. This might be the first case of non-Burkitt type lymphoma in which the EB virus genome was directly detected in the tumor cells.
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84
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Suzuki T, Katano A, Oboshi S, Sairenji T, Hinuma Y. Epstein-Barr virus-determined nuclear antigen in malignant epithelial cells of nasopharyngeal carcinoma. GAN 1978; 69:133-8. [PMID: 205477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tumor tissue from lymph node metastasis of nasopharyngeal carcinoma (NPC) was successfully heterotransplanted into an athymic nude mouse and the tumor grown in the nude mouse was identical in its morphology to that form the patient by optical and electron microscopy. Tumor cells at passage 2 were dispersed in vitro by enzymic digestion and smeared. Epstein-Barr virus-determined nuclear antigen (EBNA) was demonstrated in malignant epithelial cells of the smear.
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85
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Sairenji T, Hinuma Y, Sekizawa T, Yoshida M. Appearance of early and late components of Epstein-Barr virus-associated membrane antigen in Daudi cells superinfected with P3HR-1 virus. J Gen Virol 1978; 38:111-20. [PMID: 202665 DOI: 10.1099/0022-1317-38-1-111] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This study investigated the synthesis of membrane antigen (MA) as well as virus capsid antigen (VCA) and early antigen (EA) in Daudi cells which had been superinfected with the P3HR-1 strain of Epstein-Barr virus (EBV) and then treated with trypsin to remove initially absorbed MA-positive material from the cell surface. Synthesis of MA, VCA and EA was completely inhibited by puromycin. A marked reduction in the frequency of MA positive cells was observed in superinfected cells cultured in the presence of either cytosine arabinoside (Ara-C) or phosphonoacetate (PA); however, a small fraction of MA synthesis occurred, suggesting an inhibitor insensitive component in MA, A differential absorption of EBV antibody-positive human serum with the Ara-C treated or untreated infected cells detected two antigenically different components in MA: early (Ara-C insensitive) and late (Ara-C sensitive) MA.
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86
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Sairenji T, Katsuki T, Hinuma Y. Cell-killing by Epstein-Barr virus: analysis by colony inhibition procedure. Int J Cancer 1976; 17:389-95. [PMID: 176118 DOI: 10.1002/ijc.2910170316] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The P3HR-1 and B95-8 strains of Epstein-Barr virus (EBV) were cytocidal for EBV-carrier human cell lines, as revealed by a colony inhibition procedure. The cytocidal activity was proportional to virus dose added. The cell killing was neutralized by anti-EBV antibody-positive but not -negative human sera. When the relative sensitivity to ultraviolet light of EBV activities was examined, the cytocidal actitivy was much more resistant than the viral infectivity as assayed by early antigen-forming activity (P3HR-1 virus) or leukocyte-transforming activity (B95-8 virus), but it closely paralleled the ability to adsorb to cells.
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87
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Sairenji T, Hinuma Y. Inhibitory effect of adult bovine serum on release of infectious Epstein-Barr virus from a virus-carrier cell line. J Natl Cancer Inst 1975; 55:339-43. [PMID: 169373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
When certain bovine sera (BS) were used to culture P3HR-1 cells, the amount of infectious Epstein-Barr virus (EBV) released into the culture fluid was significantly less than that obtained when calf serum (CS) or fetal calf serum (FCS) was used. A direct dose-response relationship was noted between the concentration of BS and the degree of inhibition of virus production. Cell growth was not inhibited nor was virus infectivity neutralized by BS. Similarly, EBV infectivity was not reduced by spent medium containing BS. The inhibition of virus production by BS could be reversed by replacement of the serum supplement with CS. The formation of viral capsid antigen and of infectious virus within the cells was not inhibited by BS, whereas the amount of virus released was significantly decreased in comparison with culture media containing FCS or CS. These findings suggested the presence of a factor(s) in the BS which inhibited the release of EBV from the cell.
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88
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Sairenji T, Hinuma Y. Ultraviolet inactivation of Epstein-Barr virus: effect on synthesis of virus-associated antigens. Int J Cancer 1975; 16:1-6. [PMID: 170209 DOI: 10.1002/ijc.2910160102] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The relative sensitivity to ultraviolet (UV) light of genome functions of the P3HR-1 strain of Epstein-Barr virus (EBV) was studied. The formation of viral capsid antigen (VCA) appeared to be more sensitive than that of early antigen (EA), while the synthesis of membrane antigen (MA) was most resistant, as seen on examination in the presence of cytosine arabinoside (Ara-C). However, the appearance of both VCA and EA, but not that of MA, was delayed with UV-irradiated virus, in either the presence or absence of Ara-C. The synthesis of EA and VCA induced by UV-irradiated virus was suppressed in the presence of Ara-C, while that of MA was not.
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89
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Hinuma Y, Suzuki M, Sairenji T. Epstein-barr virus-induced cap formation in human lymphoblastoid cells. Int J Cancer 1975; 15:799-805. [PMID: 237838 DOI: 10.1002/ijc.2910150511] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Redistribution and consequent cap formation of Epstein-Barr virus adsorbed to human lymphoblastoid cells were studied by indirect membrane immunofluorescence carried out at 0 degrees C. When EBV was adsorbed on cells at 0 degrees C, the cell surface fluorescence had a mostly r-ng-like pattern. However, the ring cells could be transformed into cap cells when warmed at 37 degrees C. This cap formation could be induced by EBV alone without participation of antibodies involved in the immunofluorescence procedure. The cap formation was temperature- and pH-dependent, and was reversibly inhibited by sodium azide or some sugars. Thus the EBV-induced cap formation was analogous to that induced by antibodies or ligands on other lymphoid cells.
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90
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Sairenji T. [Membrane-specific antigen of Epstein-Barr (EB) virus]. Uirusu 1974; 24:125-6. [PMID: 4377351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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91
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Sairenji T, Hinuma Y. Assay of Epstein-Barr virus by immunofluorescence. GAN 1973; 64:633-6. [PMID: 4360586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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92
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Sairenji T, Hinuma Y. Modes of Epstein-Barr virus infection in human floating cell lines. GAN 1973; 64:583-90. [PMID: 4360583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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93
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Ida S, Sairenji T, Hinuma Y. Antibodies to a new antigen induced by Epstein-Barr virus in patients with nasopharyngeal carcinoma, leukemia, malignant lymphoma, and in control groups. GAN 1972; 63:49-55. [PMID: 4339712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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94
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Sairenji T, Yamaguchi J, Katagiri S, Hinuma Y. Effect of Neocarzinostatin on the cultured Burkitt lymphoma cells, with particular reference to the enhancement of production of Epstein-Barr virus. GAN 1970; 61:451-60. [PMID: 4320553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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95
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Hinuma Y, Sairenji T, Hadano R. [Characteristics of cultivated Burkitt's lymphoma cells, with special reference to relationship with proliferation of cells and EB virus]. Nihon Saikingaku Zasshi 1970; 25:431. [PMID: 4322215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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