3226
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Chen W, Alley MR, Allardyce RA, Keenan J. Experimental Ascaris-induced airway hypersensitivity in sheep: no serological evidence of association with Toxocara canis infection. N Z Vet J 1990; 38:80. [PMID: 16031584 DOI: 10.1080/00480169.1990.35623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3227
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Chen W, Reese VA, Cheever MA. Adoptively transferred antigen-specific T cells can be grown and maintained in large numbers in vivo for extended periods of time by intermittent restimulation with specific antigen plus IL-2. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1990; 144:3659-66. [PMID: 2332628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The aim of the current study was to determine whether cultured tumor Ag-specific T cells could be induced to grow and maintained functional in large numbers in vivo by intermittent restimulation in vivo with specific Ag plus IL-2. T cells derived from spleens of B6 mice (Thy-1.2) immune to FBL-3, a Friend virus-induced leukemia, were activated by in vitro stimulation with irradiated FBL-3 and expanded by culture for 14 days with low concentrations of IL-2. The resultant FBL-3-specific T cell lines were adoptively transferred into cyclophosphamide pretreated congenic hosts (B6/Thy-1.1), and restimulated every 14 days by an injection of irradiated FBL-3 plus a 7-day course of IL-2. Donor T cells residing in the host were identified and quantified by use of antibody to the Thy-1.2 allele. The results confirmed that stimulation with FBL-3 on the day of transfer (day 0) plus IL-2 on days 0 to 6 induced rapid growth of donor T cells to approximately an 11-fold increase in total donor T cell number recoverable from host ascites and spleen by day 7. However, prolonging the course of IL-2 administration to 35 days did not maintain the number or the specific cytolytic function of donor T cells. By contrast, intermittent restimulation with specific Ag plus IL-2 induced intermittent regrowth of donor T cells in vivo, maintained the number of donor T cells in vivo at greater than the number input for longer than 1 mo, and allowed detection of substantially augmented donor T cell-mediated specific antitumor function over that period of time.
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3228
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Chen W, Reese VA, Cheever MA. Adoptively transferred antigen-specific T cells can be grown and maintained in large numbers in vivo for extended periods of time by intermittent restimulation with specific antigen plus IL-2. THE JOURNAL OF IMMUNOLOGY 1990. [DOI: 10.4049/jimmunol.144.10.3659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
The aim of the current study was to determine whether cultured tumor Ag-specific T cells could be induced to grow and maintained functional in large numbers in vivo by intermittent restimulation in vivo with specific Ag plus IL-2. T cells derived from spleens of B6 mice (Thy-1.2) immune to FBL-3, a Friend virus-induced leukemia, were activated by in vitro stimulation with irradiated FBL-3 and expanded by culture for 14 days with low concentrations of IL-2. The resultant FBL-3-specific T cell lines were adoptively transferred into cyclophosphamide pretreated congenic hosts (B6/Thy-1.1), and restimulated every 14 days by an injection of irradiated FBL-3 plus a 7-day course of IL-2. Donor T cells residing in the host were identified and quantified by use of antibody to the Thy-1.2 allele. The results confirmed that stimulation with FBL-3 on the day of transfer (day 0) plus IL-2 on days 0 to 6 induced rapid growth of donor T cells to approximately an 11-fold increase in total donor T cell number recoverable from host ascites and spleen by day 7. However, prolonging the course of IL-2 administration to 35 days did not maintain the number or the specific cytolytic function of donor T cells. By contrast, intermittent restimulation with specific Ag plus IL-2 induced intermittent regrowth of donor T cells in vivo, maintained the number of donor T cells in vivo at greater than the number input for longer than 1 mo, and allowed detection of substantially augmented donor T cell-mediated specific antitumor function over that period of time.
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3229
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Chen W, Fritze M, Nurmikko AV, Ackley D, Colvard C, Lee H. Interaction of magnetoexcitons and two-dimensional electron gas in the quantum Hall regime. PHYSICAL REVIEW LETTERS 1990; 64:2434-2437. [PMID: 10041711 DOI: 10.1103/physrevlett.64.2434] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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3230
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Chen W, Wong WK, Chen TC. A case of zinc deficiency during long-term total parenteral nutrition. J Formos Med Assoc 1990; 89:388-91. [PMID: 1977850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A 54-year-old housewife received total parenteral nutrition (TPN) because of an intestinal fistula and total wound breakdown after an emergency operation for perforation of the ileum and diffuse peritonitis. The TPN regimen reversed the catabolism and resolved the abdominal wound and enterocutaneous fistula. Zinc and copper were not supplemented because there was no licensed parenteral trace element solution available. At week 17 of TPN, eczematoid dermatitis appeared on the face, nasolabial folds and chin, and the perineal area. These changes, coinciding with a serum zinc level of 20 micrograms/dl, were consistent with zinc deficiency. Zinc supplementation was commenced giving 6 mg of elemental zinc intravenously daily. The response to zinc therapy was very dramatic. Not only did the serum zinc level increase, but the skin changes returned to normal within 7 days. The patient gradually resumed her usual diet and TPN was discontinued after an approximate duration of 21 weeks. She was later discharged in good health.
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3231
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Fan Y, Gan B, Chen S, Chen W, Ren J, Chen L. [Pest control and yield increase of areca by root-zone application of carbofuran in admixture with fertilizers]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 1990; 15:204-6, 253. [PMID: 2169759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The result of our experiment has shown that by root-zone application of carbofuran in admixture with fertilizers to Areca in spring the serious pest Tirathaba rufivena can be controlled for 4 months during flowering and young fruiting stage and the yield can increase by 50%. The final residual amount of carbofuran in fruits is below 0.1-0.01 ppm or too low to be examined, and there is no decrease in total alkaloid content in fruits.
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3232
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Fulton R, Hempstead M, Jensen T, Johnson DR, Kagan H, Kass R, Morrow F, Whitmore J, Chen W, Dominick J, McIlwain RL, Miller DH, Ng CR, Shibata EI, Yao W, Sparks K, Thorndike EH, Alam MS, Katayama N, Kim IJ, Li WC, Lou XC, Sun CR, Bortoletto D, Goldberg M, Horwitz N, Lubrano P, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Csorna SE, Letson T, Brock IC, Ferguson T, Vogel H, Alexander J, Artuso M, Bebek C, Byrd J, Berkelman K, Blucher E, Cassel DG, Cheu E, Coffman DM, Copie T, Crawford G, DeWire JW, Drell PS, Ehrlich R, Galik RS, Gittelman B, Gray SW, Halling AM, Hartill DL, Heltsley BK, Kandaswamy J, Kowalewski R, Kreinick DL, Kubota Y, Lewis JD, Mistry NB, Mueller J. Radiative Upsilon (1S) decays. Int J Clin Exp Med 1990; 41:1401-1409. [PMID: 10012491 DOI: 10.1103/physrevd.41.1401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3233
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3234
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Avery P, Besson D, Garren L, Yelton J, Bowcock T, Kinoshita K, Pipkin FM, Procario M, Wilson R, Wolinski J, Xiao D, Ammar R, Baringer P, Haas P, Lam H, Jawahery A, Park CH, Nelson JK, Perticone D, Poling R, Chen W, Dominick J, McIlwain RL, Miller DH, Ng CR, Schaffner SF, Shibata EI, Yao W, Sparks K, Thorndike EH, Alam MS, Kim IJ, Li WC, Lou XC, Sun CR, Fulton R, Hempstead M, Jensen T, Johnson DR, Kagan H, Kass R, Morrow F, Whitmore J, Bortoletto D, Goldberg M, Horwitz N, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Csorna SE, Letson T, Alexander J, Artuso M, Bebek C, Berkelman K, Cassel DG, Cheu E, Coffman DM, Crawford G, DeWire JW, Drell PS, Ehrlich R. P-wave charmed mesons in e+e- annihilation. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1990; 41:774-779. [PMID: 10012395 DOI: 10.1103/physrevd.41.774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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3235
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Bowcock T, Kinoshita K, Pipkin FM, Procario M, Wilson R, Wolinski J, Xiao D, Ammar R, Baringer P, Coppage D, Haas P, Lam H, Jawahery A, Park CH, Kubota Y, Nelson JK, Perticone D, Poling R, Chen W, Dominick J, McIlwain RL, Miller DH, Ng CR, Schaffner SF, Shibata EI, Yao W, Sparks K, Thorndike EH, Alam MS, Kim IJ, Li WC, Lou XC, Sun CR, Fulton R, Hempstead M, Jensen T, Johnson DR, Kagan H, Kass R, Morrow F, Whitmore J, Bortoletto D, Goldberg M, Horwitz N, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Csorna SE, Letson T, Alexander J, Artuso M, Bebek C, Berkelman K, Cassel DG, Cheu E, Coffman DM, Crawford G, DeWire JW, Drell PS, Ehrlich R, Galik RS, Gittelman B. Search for neutrinoless decays of the tau lepton. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1990; 41:805-808. [PMID: 10012398 DOI: 10.1103/physrevd.41.805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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3236
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Chen W, Wu YS. Implications of a cosmological constant varying as R-2. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1990; 41:695-698. [PMID: 10012380 DOI: 10.1103/physrevd.41.695] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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3237
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Martin JP, Chen W, Obert G, Koehren F. Characterization of attenuated mutants of MHV3: importance of the E2 protein in organ tropism and infection of isolated liver cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 1990; 276:403-10. [PMID: 1966430 DOI: 10.1007/978-1-4684-5823-7_55] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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3238
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Panton LB, Graves JE, Pollock ML, Hagberg JM, Chen W. Effect of aerobic and resistance training on fractionated reaction time and speed of movement. JOURNAL OF GERONTOLOGY 1990; 45:M26-31. [PMID: 2295775 DOI: 10.1093/geronj/45.1.m26] [Citation(s) in RCA: 62] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To evaluate the effect of aerobic and variable resistance exercise training on fractionated reaction time (RT) and speed of movement (SM) in elderly individuals, premotor time (PMT), motor time (MT), total RT, and SM were measured in 49 healthy, untrained men and women, 70 to 79 years of age, before and after 6 months of training. Subjects were randomized into either a walk/jog (n = 17), a strength training (n = 20), or a control group (n = 12). Improvements in aerobic capacity were only weakly related to reduced total RT (r = 0.30, p less than .05). Analysis of covariance revealed that there were no differences (p greater than .05) among the three groups after training with respect to PMT, MT, total RT, and SM. These findings indicate that 6 months of aerobic and strength training did not induce significant changes in RT or SM in this group.
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3239
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Fulton R, Hempstead M, Jensen T, Johnson DR, Kagan H, Kass R, Morrow F, Whitmore J, Wilson P, Chen W, McIlwain RL, Miller DH, Ng CR, Schaffner SF, Shibata EI, Yao W, Sparks K, Thorndike EH, Wang C, Brock IC, Ferguson T, Alam MS, Kim IJ, Li WC, Lou XC, Sun CR, Wang P, Zoeller MI, Bortoletto D, Goldberg M, Horwitz N, Jain V, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Thulasidas M, Csorna SE, Letson T, Alexander J, Artuso M, Bebek C, Berkelman K, Cassel DG, Cheu E, Coffman DM, Crawford G, DeWire JW, Drell PS, Ehrlich R, Galik RS, Gittelman B, Gray SW, Halling AM, Hartill DL, Heltsley BK, Kandaswamy J, Katayama N, Kreinick DL, Lewis JD, Mistry NB, Mueller J, Namjoshi R. Observation of B-meson semileptonic decays to noncharmed final states. PHYSICAL REVIEW LETTERS 1990; 64:16-20. [PMID: 10041262 DOI: 10.1103/physrevlett.64.16] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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3240
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Chen W, Alley MR, Manktelow BW. Pneumonia in mice produced by cell-free extract of cultures of Bordetella parapertussis. Res Vet Sci 1990; 48:18-22. [PMID: 2300709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A single dose of culture fluid of Bordetella parapertussis freed from cells (CFCF) given intranasally to four-week-old mice free from intercurrent respiratory disease produced a subacute bronchopneumonia, which was similar to that induced by whole cells of ovine isolates of B parapertussis, except that the lesions were less severe and less extensive. From eight hours to 17 days after inoculation, the mice exhibited marked infiltration of neutrophils and macrophages into the alveolar septa, bronchiolar and alveolar spaces, and hyperplasia of peribronchiolar and perivascular lymphoid tissue. Electron microscopy showed damage to ciliated cells, type 1 pneumocytes and alveolar macrophages. These results suggest that extracellular toxic substance(s) produced by ovine isolates of B parapertussis might be involved in the initiation and development of lesions in ovine chronic non-progressive pneumonia.
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3241
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Chen W, Alley MR, Manktelow BW, Davey P. Mast cells in the ovine lower respiratory tract: heterogeneity, morphology and density. INTERNATIONAL ARCHIVES OF ALLERGY AND APPLIED IMMUNOLOGY 1990; 93:99-106. [PMID: 2099356 DOI: 10.1159/000235287] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The lower respiratory tract (LRT) of 6 adult sheep was fixed in either isotonic formalin-acetic acid or neutral buffered formalin in order to study the heterogeneity, morphology and density of mast cells (MCs). Two subtypes of MCs were found, one histochemically similar to connective tissue MCs (formalin resistant) and the other similar to mucosal MCs as found in the intestine of the rat (formalin sensitive). Although both subtypes were present at all levels of the tract, formalin-sensitive MCs were significantly more abundant (p less than 0.01) at all levels, and their density increased distally from the trachea to the peripheral lung. The formalin-sensitive MCs were predominantly located in the alveolar septa and in the superficial lamina propria of airways and less frequently within the airway epithelium. The MCs in the ovine LRT were found to be morphologically heterogeneous at both the light-microscopic and electron-microscopic levels. These findings indicate that ovine respiratory tract MCs have similarity to human lung MCs, and therefore potential for use as a model for the study of human allergic disease of the respiratory system.
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3242
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Chen W, Feller MB, Shen YR. Investigation of anisotropic molecular orientational distributions of liquid-crystal monolayers by optical second-harmonic generation. PHYSICAL REVIEW LETTERS 1989; 63:2665-2668. [PMID: 10040955 DOI: 10.1103/physrevlett.63.2665] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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3243
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Chen W, Alley MR, Manktelow BW. Respiratory tract-associated lymphoid tissue in conventionally raised sheep. J Comp Pathol 1989; 101:327-40. [PMID: 2584451 DOI: 10.1016/0021-9975(89)90042-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The distribution and morphological features of respiratory tract-associated lymphoid tissue was investigated in 20 clinically healthy sheep aged from 6 months to 9 years. Five different forms of lymphoid tissue were identified, but their distribution varied between regions of the respiratory tract and between individuals. Scattered lymphoid cells were the most predominant form. Dense lymphoid aggregations were frequently seen in the pharyngeal tonsil and bronchioles. They were less common in the mid-nasopharynx and about the opening of the auditory tube, occasionally seen in the anterior nasopharynx, trachea and bronchus and rarely found in the regions of the nasal conchae, nostril, nasal vestibule and epiglottis. Nodular lymphoid aggregations with morphologically distinct lympho-epithelium were seen only in the pharyngeal tonsil and opening of the auditory tube region. Small numbers of intra-epithelial lymphoid cells were always present throughout the mucosa, but intraluminal lymphocytes were observed mainly in the regions of pharyngeal tonsil, trachea, bronchi and large bronchioles. The respiratory tract-associated lymphoid tissue is less developed in sheep than in most other species studied, except perhaps cattle.
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3244
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Zhang XM, Yang DL, Liu YC, Chen W, Cheng JL. Kinetics and mechanism of the reactions of o- and p-nitrohalobeszenes with the sodium salt of ethyl cyanoacetate carbanion: a non-chain radical nucleophilic substitution mechanism. RESEARCH ON CHEMICAL INTERMEDIATES 1989. [DOI: 10.1163/156856789x00393] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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3245
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Bowcock T, Kinoshita K, Mauskopf P, Pipkin FM, Procario M, Wilson R, Wolinski J, Xiao D, Baringer P, Haas P, Lam H, Jawahery A, Park CH, Perticone D, Poling R, Fulton R, Hempstead M, Jensen T, Johnson DR, Kagan H, Kass R, Morrow F, Whitmore J, Chen W, Dominick JM, McIlwain RL, Miller DH, Ng CR, Shibata EI, Yao W, Thorndike EH, Alam MS, Katayama N, Kim IJ, Li WC, Lou XC, Sun CR, Bortoletto D, Goldberg M, Horwitz N, Lubrano P, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Csorna SE, Letson T, Brock IC, Ferguson T, Artuso M, Bebek C, Berkelman K, Byrd J, Cassel DG, Cheu E, Coffman DM, Crawford G, DeWire JW, Drell PS, Ehrlich R, Galik RS, Gittelman B, Gray SW. Search for the production of fractionally charged particles in e+e- annihilations at sqrt s =10.5 GeV. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1989; 40:263-266. [PMID: 10011682 DOI: 10.1103/physrevd.40.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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3246
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Chen W, Ng WK, Kumar Das VG, Jameson GB, Butcher RJ. Structure of (p-chlorophenyl)bis(quinolin-8-olato)(p-tolyl)tin(IV). Acta Crystallogr C 1989. [DOI: 10.1107/s0108270188014325] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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3247
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Chen W, McIlwain RL, Miller DH, Ng CR, Shibata EI, Yao W, Thorndike EH, Alam MS, Katayama N, Kim IJ, Li WC, Lou XC, Sun CR, Bortoletto D, Goldberg M, Horwitz N, Mestayer MD, Moneti GC, Sharma V, Shipsey IP, Skwarnicki T, Csorna SE, Letson T, Brock IC, Ferguson T, Artuso M, Bebek C, Berkelman K, Blucher E, Byrd J, Cassel DG, Cheu E, Coffman DM, Crawford G, DeSalvo R, DeWire JW, Drell PS, Ehrlich R, Galik RS, Gittelman B, Gray SW, Halling AM, Hartill DL, Heltsley BK, Kandaswamy J, Kowalewski R, Kreinick DL, Kubota Y, Lewis JD, Mistry NB, Mueller J, Namjoshi R, Nandi S, Nordberg E, O'Grady C, Peterson D, Pisharody M, Riley D, Sapper M, Silverman A, Stone S, Worden H, Worris M, Sadoff AJ. Measurement of the muonic branching fractions of the Upsilon (1S) and Upsilon (3S). Int J Clin Exp Med 1989; 39:3528-3531. [PMID: 9959608 DOI: 10.1103/physrevd.39.3528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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3248
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Schaich WL, Chen W. Nonlocal corrections to Fresnel optics: How to extend d-parameter theory beyond jellium models. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 39:10714-10724. [PMID: 9947881 DOI: 10.1103/physrevb.39.10714] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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3249
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Chen W, Martinez-Miranda LJ, Hsiung H, Shen YR. Orientational wetting behavior of a liquid-crystal homologous series. PHYSICAL REVIEW LETTERS 1989; 62:1860-1863. [PMID: 10039789 DOI: 10.1103/physrevlett.62.1860] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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3250
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Chen W, Gendrault JL, Steffan AM, Jeandidier E, Kirn A. Isolation, culture and main characteristics of mouse fat-storing cells: interaction with viruses. Hepatology 1989; 9:352-62. [PMID: 2465986 DOI: 10.1002/hep.1840090303] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Fat-storing cells were isolated from 15-day-old mouse sinusoidal cell cultures (Kupffer or endothelial cells), where they had multiplied abundantly; they were then purified by a negative selection method based on the fact that they do not possess Fc receptors, as do both other types of cells. The fat-storing cells, which could be subcultured for at least 10 passages, have the main morphological characteristics already described in vivo, in particular, the rough endoplasmic reticulum and the lipid droplets, which become less and less apparent as the number of passages increases. Subcultured fat-storing cells, almost devoid of lipid droplets and vitamin A, were able to take up retinol, as the appearance of a typical autofluorescence indicated; the number of lipid droplets increased concomitantly. Furthermore, the cultured fat-storing cells were able to internalize one-micron-sized latex beads by phagocytosis. Infection of fat-storing cells with mouse hepatitis virus 3, ectromelia or Sindbis virus led to multiplication of the virus particles. There was a direct relation between the multiplication of mouse hepatitis virus 3 in cultured fat-storing cells and the susceptibility of the animals to the virus. In the case of Sindbis virus, interferon is produced, its production being independent of the presence of vitamin A.
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