Search Results - (Author, Cooperation:S. K. Liao)

2012-08-10

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

1365-2133

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Electronic Resource

1572-8935

Plastification ; Polypropylene ; Supercritical CO2 dyeing ; Penetration

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Physics

Abstract Polypropylene fibers were dyed in supercritical carbon dioxide system and the results were compared with those of fiber dyed in water system. Dye uptake value calculated by a UV spectrum indicated that polypropylene fiber dyeing was much better in carbon dioxide than in water. Optical microscopical analysis showed that dye molecules had diffused thoroughly into fiber in CO2 because of the excellent compatibility between the dye and the CO2. X-ray and birefrigence analysis demonstrated that plastification caused by the implementation of CO2 made molecular chain more mobile and led to an increase in the dyeing of polypropylene fibers. Moreover a mechanical test and DSC analysis indicated that the fiber structure was not damaged when the fabric was dyed at 100 °C. Hence dyeing polypropylene using CO2 as a transport medium was very feasible and worthy of further development.

Electronic Resource

1432-0851

Springer Online Journal Archives 1860-2000

Medicine

Summary Seven well-characterized human malignant melanoma cell lines have been evaluated in terms of their reactivity in membrane immunofluorescence tests with sera from 48 patients with melanoma, 23 patients with other forms of cancer and 28 normal controls. There was a significantly greater degree of reactivity of melanoma sera (33.7%) than of sera of normal controls (22.2%) or of sera from patients with other forms of cancer (24.2%). The incidence of strong reactors among the melanoma patients was found to be inversely proportional to the extent of disease in the melanoma patients: Stage I, 54.5%, Stage III, 36.8% and Stage IV, 29.4%. Reactivity against non-melanoma cell lines was similar in the three subject groups and was unaffected by stage of disease in the melanoma patients. No single cell line showed preferential reactivity with melanoma sera. There was an increased overall incidence of reactivity of all three subject groups against non-pigmented cell lines. A-B-0 antigens and heterophile antigens were excluded as a cause of seropositivity. The antigen(s) was trypsin-sensitive and neuraminidase-resistant. These data suggest that long term cultures of human melanoma may contain melanoma-associated antigens which may be useful in the further study and search for melanoma-specific antigens.

Electronic Resource

0014-4827

Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Biology

Medicine

Electronic Resource

1420-9071

Springer Online Journal Archives 1860-2000

Biology

Medicine

Résumé L'incorporation de3Htdr, en l'absence de PHA, a obtenu un niveau élevé chez les animaux immunisés. Les cellules témoins montrèrent une radioactivité faible, à moins qu'elles n'aient été stimulées par la PHA. Les cellules spléniques des souris immunisées ne présentèrent aucune stimulation significative par l'utilisation d'une dose optimum de PHA.

Electronic Resource

1420-9071

Springer Online Journal Archives 1860-2000

Biology

Medicine

Résumé Une immunité active au sarcome, produit par le cholanthrène de méthyle, a été obtenue en utilisant des cellules tumorales multinucléées, associées au virus de Sendai; les réactions ont été spécifiques à la tumeur. A la suite de ces injections, plus de 70% des souris furent résistantes aux trois inoculations, avec 105 cellules vivantes tumorales.

Electronic Resource

1432-1335

Springer Online Journal Archives 1860-2000

Medicine

Zusammenfassung Ein transplantierbares, durch Methylcholanthren erzeugtes Sarkom zeigte ein starkes wirtsspezifisches Verhalten hinsichtlich seiner Transplantierbarkeit gegenüber dem A/Jax Mäusestamm, in dem der Tumor entstanden war. Durch Einwirkung von aktiviertem Sendai-Virus infolge von Fusion entstandene vielkernige Tumorzellen waren fähig, eine aktive Immunisierung in virginellen A/Jax-Mäusen hervorzurufen. Dieser Immunitätsschutz schien eine größere Wirksamkeit zu haben als der durch zwei andere Immunisierungsverfahren erzeugte, nämlich durch bestrahlte und mit Neuraminidase behandelte Zellen.

Summary A transplantable methylcholanthrene-induced sarcoma exhibited a strong host-specific behavior of transplantability to A/Jax mice, the strain in which the tumor originated. Inactivated Sendai virus fused-multinucleate tumor cells were capable of inducing active immunity in virgin A/Jax mice. This immunoprotection appeared to have greater effect than that by two other immunizing techniques, namely, irradiated and neuraminidase treated cells.

Electronic Resource

1432-1335

Springer Online Journal Archives 1860-2000

Medicine

Summary Seven continuous cell lines of human malignant melanoma were studied in terms of their in vivo growth potential in the cheek pouch of the cortisonized golden hamster. Progressive tumor growth was noted only among the melanoma lines which were grossly pigmented (10/32 transplants). None of the three amelanotic tumor lines showed progressive growth. The growing tumors could be identified as melanoma on morphological grounds and by histochemical demonstration of melanin granules. Histology of the tumor lesions revealed evidence of a host reaction to the tumor transplants. This was confirmed by demonstration of circulating antibodies directed against the implanted human cells. Correlations between in vivo heterotransplantability and in vitro saturation density of human melanoma cells were not found in the present study.

Electronic Resource