576
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Rettenmier CW, Chen JH, Roussel MF, Sherr CJ. The product of the c-fms proto-oncogene: a glycoprotein with associated tyrosine kinase activity. Science 1985; 228:320-2. [PMID: 2580348 DOI: 10.1126/science.2580348] [Citation(s) in RCA: 140] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The c-fms proto-oncogene is a member of a gene family that has been implicated in tumorigenesis. Glycoproteins encoded by c-fms were identified in cat spleen cells by means of an immune-complex kinase assay performed with monoclonal antibodies to v-fms-coded epitopes. The major form of the normal cellular glycoprotein has an apparent molecular weight of 170,000 and, like the product of the viral oncogene, serves as a substrate for an associated tyrosine-specific protein kinase activity in vitro. The results suggest that the transforming glycoprotein specified by v-fms is a truncated form of a c-fms-coded growth factor receptor.
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577
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Lawler J, Derick LH, Connolly JE, Chen JH, Chao FC. The structure of human platelet thrombospondin. J Biol Chem 1985; 260:3762-72. [PMID: 2579080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Two distinct murine monoclonal antibodies, designated MA-I and MA-II, and limited proteolysis with thrombin and trypsin have been used to probe the structure of human platelet thrombospondin. The results indicate that each of the constituent chains of thrombospondin comprise four distinct polypeptide segments. The production of these segments is influenced by the presence of calcium, the enzyme employed, the temperature of digestion, and the enzyme-to-substrate ratio. Thrombin digestion in the presence of calcium results in the release of a 30,000-dalton fragment, designated segment I, which contains the epitope for MA-II and the heparin-binding site. Prior EDTA treatment results in the concomitant cleavage of a 25,000-dalton fragment, designated segment IV, from the other terminus. Limited tryptic digestion in the absence of calcium produces a 47,000-dalton fragment (segment III) which is adjacent to segment IV. Segment III contains the epitope for MA-I. Segment II is an 85,000-dalton fragment which contains the interchain disulfide bonds. Calcium inhibits proteolysis at cleavage sites between segments II and III and between segments III and IV. In the presence of calcium, an 85,000-dalton fragment is produced, which is derived from portions of segments II, III, and possibly IV. Electron microscopy of platinum replicas produced by low angle rotary shadowing reveals that thrombospondin is composed of four well-defined globular regions connected by thin flexible regions. Three of the globular regions, designated globular region C, appear to be at the ends of the three thin connecting regions. The fourth globular region, designated globular region N, appears to be close to the site where the chains are cross-linked. Globular region N can be resolved into three separate smaller globular structures which are 70 +/- 7.1 A in diameter. This region is selectively removed by thrombin digestion in the presence of calcium and binds a monoclonal antibody directed against the heparin-binding peptides. These data indicate that globular region N comprises the three NH2-terminal portions (segment I) from each of the three chains of thrombospondin. Globular region C is located at the ends of each of the three thin connecting regions which are each approximately 291 +/- 46 A long. The removal of calcium results in a decrease in the size of globular region C from 118 +/- 18.6 A to 80 +/- 7.4 A and an increase in the length of the adjacent thin connecting region to 383 +/- 30 A.(ABSTRACT TRUNCATED AT 400 WORDS)
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578
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Kang LY, Zheng SH, Liu YX, Shen DF, Chen JH. Isolation and characterization of a novel nucleic acid binding protein from calf lenses. Curr Eye Res 1985; 4:199-206. [PMID: 2410188 DOI: 10.3109/02713688509000851] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The transitional process of lens cellular differentiation is accompanied by several unique morphological and biochemical changes. Pyknosis or apoptosis of the nucleus involves extensive degradation of genetic materials. In an attempt to search for a gene product responsible for such a regulatory process, we have adopted DNA-cellulose affinity chromatography to enrich the specific binding protein. A binding protein was isolated by high salt (0.8M KCl) wash of the lens polysomal fraction and purified to apparent homogeneity by DNA-cellulose affinity column and chromatofocusing. The nucleic acid binding protein has an apparent molecular weight of 36,000, designated as regulatory factor 36 (RF-36), as determined by SDS/PAGE. Amino acid composition analysis indicated that RF-36 contains high proportions of glycine, alanine, characteristic of the core heteronucleus RNP proteins. Comparative immunological studies with other DNA binding protein antigen (e.g. helix destabilizing protein) suggest the existence of some common overlapping determinant. However, when monoclonal anti-RF-36 was used as immunoprobe, no cross immunoactivity was detected between these homologous binding proteins, suggesting some antigenic diversity among these two nucleic acid binding proteins from different organisms.
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579
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Lawler J, Derick LH, Connolly JE, Chen JH, Chao FC. The structure of human platelet thrombospondin. J Biol Chem 1985. [DOI: 10.1016/s0021-9258(19)83689-x] [Citation(s) in RCA: 99] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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580
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Chen JH. [Microscopic features for the identification of Chinese drugs in Ranunculaceus]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1985; 10:15-7. [PMID: 3157471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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581
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Chou YH, Chiang CP, Huang CH, Liu LH, Chen JH, Lai YH. Emphysematous pyelonephritis--a case report. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1985; 84:154-9. [PMID: 3858427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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582
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Hsu KL, Chen JJ, Chen JH, Lien WP, Kuo SH, Wu MC, Wu TL, Lee CS. [Primary alveolar hypoventilation--a case report]. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1984; 83:705-13. [PMID: 6594433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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583
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Chen JJ, Lien WP, Chen JH, Hsu KL, Hsieh YY, Wu TL, Wang JL, Weng JC. The role of autonomic chronotropic influences in patients with the sick sinus syndrome. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1984; 83:86-97. [PMID: 6586991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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584
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Hsieh YY, Huang JD, Lin FL, Chen RR, Lin MS, Hsu KL, Chen JH, Wu TL, Su CT, Hsu JC. Absorption and elimination kinetics of digoxin after multiple oral doses. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1983; 82:1269-78. [PMID: 6585473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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585
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Chen JH, Lien WP, Chen JJ, Hsieh YY, Huang CT, Wang JL, Weng JC, Wu TL, Tseng WP, Jan KM. Clinical spectrum of ruptured mitral chordae tendineae. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1983; 82:898-912. [PMID: 6580376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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586
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Chen JH. [Genetic code and its evolution]. SHENG LI KE XUE JIN ZHAN [PROGRESS IN PHYSIOLOGY] 1983; 14:204-8. [PMID: 6648454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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587
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Hsieh YY, Lin MS, Chen JH, Hsu KL, Wu TL, Su CT, Shu MY, Hsu JC, Hsu WS, Chen JS. Spironolactone-digoxin interaction. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1983; 82:47-60. [PMID: 6575127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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588
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Chen JH. [Identification of several adulterants of Ge-Jie]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1982; 7:10. [PMID: 6216971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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589
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Cheng RF, Hsieh KH, Chen JH. [The role of active T lymphocytes in human immunity to tuberculosis infection in man (author's transl)]. ZHONGHUA MINGUO WEI SHENG WU JI MIAN YI XUE ZA ZHI = CHINESE JOURNAL OF MICROBIOLOGY AND IMMUNOLOGY 1982; 15:98-105. [PMID: 6980102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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590
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Chen JH, Gao Y. Method of promoting blood circulation to eliminate stasis in treatment of narcolepsy. Report of 4 cases. J TRADIT CHIN MED 1982; 2:67-9. [PMID: 6765692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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591
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Huang LS, Hsieh KH, Chen JH. [Development of serum IgE and house dust-specific IgE antibodies in normal Chinese from birth to adult and its clinical usefulness in the diagnosis and treatment of childhood asthma (author's transl)]. ZHONGHUA MINGUO WEI SHENG WU JI MIAN YI XUE ZA ZHI = CHINESE JOURNAL OF MICROBIOLOGY AND IMMUNOLOGY 1982; 15:23-9. [PMID: 7075333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Total serum IgE and house dust-specific IgE antibodies were checked in 217 healthy subjects aged from birth to 39 years and 67 newly diagnosed asthmatic children in order to study their developmental patterns in normal Chinese and evaluate their clinical usefulness in the diagnosis and treatment of bronchial asthma. The serum IgG concentrations were determined by using Phadebas IgE PRIST kits and specific IgE antibodies by Phadebas RAST kits purchased from Pharmacia, Sweden. The results showed: 1) The serum IgE increased gradually after birth, approached adult level at 3-4 years of age, continued to rise to peak at 14-16 years of age and then declined to the adult level; 2) The house dust-specific IgE antibodies increased after birth, peaked at 5-6 years of age and then declined; 3) The serum IgE was increased (greater than mean + 2SD) in 64.2% (43/67) of asthmatic children and house dust-specific IgE antibody in 62.7% (42/67) and 4) While in asthmatic children, there was a positive correlation (r = + 0.67) between serum IgE concentrations and house dust specific IgE antibodies, no such relation was found for healthy children. It is, therefore, concluded that determinations of serum IgE and house dust-specific IgE antibody are of help in the diagnosis and treatment of childhood asthma.
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592
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Abstract
Avian myeloblastosis virus (AMV)-infected cells contain two viral mRNA's, a genome-sized 34S (7.5-kilobase) mRNA and a 21S (2.5-kilobase) subgenomic mRNA, which contains the AMV-specific sequences (myb sequences). We found that AMV virions packaged both the 7.5-kilobase full-length genomic RNA and the 2.5-kilobase subgenomic RNA. In vitro translation of AMV virion RNA sized by sucrose density gradient centrifugation yielded 76,000-, 56,000-, 48,500-, 47,000-, and 32,000-dalton products. The 76,000-dalton protein was coded for by RNA throughout the gradient, but the peak of activity was at 34S to 35S. The 56,000-, and 48,500-, and 32,000-dalton proteins were encoded in a 21S RNA, and 47,000-dalton protein was encoded in an RNA of approximately 24S. The 76,000-dalton protein was identified as Pr76gag, based upon immunoprecipitation with specific antiserum and the presence of the 19* dipeptide. 7-Methylguanosine triphosphate inhibited the syntheses of Pr76gag and the 56,000-, 48,500-, and 32,000-dalton proteins, but not the synthesis of the 47,000-dalton protein. The 56,000-, 48,500-, 47,000-, and 32,000-dalton proteins were not immunoprecipitated by anti-gag, anti-reverse transcriptase, or anti-gp85 antiserum. Two-dimensional peptide maps of the 56,000- and 48,500-dalton proteins indicated that they were unique. In vitro translational products of myeloblastosis-associated virus 1 were also analyzed to aid in the identification of the AMV myb gene product(s); the translational products analyzed included Pr76gag, p60env, and a 56,000-dalton polypeptide which apparently was not identical to the 56,000-dalton AMV translational product, as determined by two-dimensional peptide mapping. Our data indicated that one of these proteins (56,000, 48,500, or 32,000 daltons) may represent the product of the AMV myb gene and, therefore, the putative transforming protein(s) of AMV.
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593
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Hwang KC, Hsieh KH, Chen JH. Immunological studies of newborn infants with hyperbilirubinemia. ZHONGHUA MINGUO WEI SHENG WU JI MIAN YI XUE ZA ZHI = CHINESE JOURNAL OF MICROBIOLOGY AND IMMUNOLOGY 1981; 14:65-72. [PMID: 7307646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In order to study the immunocompetence of severely jaundiced newborn infants and the possible role of infection in the pathogenesis of neonatal hyperbilirubinemia, 74 newborn infants with varying degree of jaundice were studied with respect to several immunological parameters. The results showed that neonates with total serum bilirubin more than 20 mg/dl had statistically significantly higher numbers of white blood cells (WBCs), band form granulocytes, polymorphonuclear leukocytes (PMNs) and monocytes with Fc and complement (C') receptors and elevated serum IgM than did those with lower serum bilirubin. It is therefore concluded: 1) There is no difference in immunocompetence between severely and mildly jaundiced newborn infants, 2) Infection may play some role(s) in the pathogenesis of neonatal hyperbilirubinemia and 3) Determinations of total WBCs, band form granulocytes, phagocytes with Fc and C' receptors and serum IgM level are of help in the diagnosis of infection in the newborn period.
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594
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Chen JH. [A discussion on the reliability and the stability of stone cells in the pharmacognostical identification (author's transl)]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1981; 6:10-1. [PMID: 6211260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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595
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Chen JH, Hayward WS, Moscovici C. Size and genetic content of virus-specific RNA in myeloblasts transformed by avian myeloblastosis virus (AMV). Virology 1981; 110:128-36. [PMID: 6259824 DOI: 10.1016/0042-6822(81)90014-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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596
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Chen JH. [Double outlet right ventricle--a report of 9 cases (author's transl)]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 1980; 8:271-2. [PMID: 7307965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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597
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Chen JH, Jiang RL. [Morphological and histological studies on Andrographis paniculata (Burm. F.) Nees. and comparison with four other Acanthaceae herbs (author's transl)]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1980; 15:750-60. [PMID: 7257802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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598
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Abstract
Uninfected chicken cells were found to contain endogenous avian myeloblastosis virus (AMV)-specific information. Different tissues from chicken embryos and chickens expressed different amounts of the AMV-specific information. The endogenous AMV-related RNA was most abundant in bone marrow cells, which contained about 20 copies per cell. About 5 to 10 copies of AMV endogenous RNA per cell were found in embryonic yolk sac cells and bursa cells. The spleen, muscle, liver, and kidney cells of chickens and the fibroblasts of chicken embryos contained about two copies per cell. The amounts of AMV endogenous RNA in bone marrow, yolk sac, and bursa varied with age. From 19-day-old embryos to 2-week-old chickens, the bone marrow contained 20 copies of AMV RNA per cell. Bone marrow cells from 2-year-old chickens contained five copies per cell. Yolk sac cells of 10-day-old embryos and 1-day-old chickens were found to contain two copies per cell, whereas in 15- to 17-day-old embryos, these cells contained 5 to 10 copies. These results indicate that the level of endogenous AMV expression correlates with the development of granulopoiesis of the chicken hemopoietic system. The results of experiments on the thermostability of RNA-DNA hybrids indicated that the endogenous AMV RNA is closely related to viral AMV RNA. The expression of endogenous AMV information is independent of the activity of the chick helper factor. This endogenous AMV information is expressed as 20 to 21S RNA in both bone marrow and yolk sac cells.
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599
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Zhu XX, He DH, Wang ZG, Chen JH, He WT, Qiu CL, Zhong XL. Clinical significance of compound quinestrol-caused glucose intolerance. Chin Med J (Engl) 1980; 93:651-8. [PMID: 6775900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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600
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Chen JH, Wiener L, Distenfeld A. Immunologic thrombocytopenia; induced by gentamicin. NEW YORK STATE JOURNAL OF MEDICINE 1980; 80:1134-5. [PMID: 6930582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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