Genetic remodeling of gangliosides resulted in the enhanced reactions to the foreign substances in skin

Satoshi Fukumoto, Akihito Yamamoto, Tomokazu Hasegawa, Kuniko Abe, Kogo Takamiya, Masahiko Okada, Zhao Jin Min, Keiko Furukawa, Hiroshi Miyazaki, Yoshiro Tsuji, George Goto, Misao Suzuki, Hiroshi Shiku, Koichi Furukawa

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12 Citations (Scopus)

Abstract

Several lines of transgenic mice with gangliosides GM2/GD2 synthase gene were established, and the expression levels of the transgene in brain, liver, spleen and thymus were analyzed by comparing with those in their litter mates. Among four tissues, brain and skin showed markedly high expression levels of the transgene in Northern blotting. Particularly, transgenic mice skin showed about 10-fold higher expression of GM2/GD2 synthase gene than the wild type mice skin. Therefore, alterations in the morphology, glycolipid components, and responses to the exogenous stimulations in the transgenic mice skin were examined. Gangliosides in the transgenic skin were dramatically converted from GM3 to GM1, whereas no morphological changes were observed. However, when skin flap test was performed with insertion of nylon membranes under the skin flaps, much stronger inflammatory reactions consisting of edema, marked thickness, and cell infiltration were observed in the transgenic mice compared with the wild type. Similar enhanced inflammatory reaction was also observed in the skin injected by silicon gel, and in the peritoneal reaction to the injected casein. Main cell population in these inflammatory reactions consisted of neutrophils, suggesting an increased sensitivity of neutrophils to chemotactic factors in the transgenic mice.

Original languageEnglish
Pages (from-to)1111-1120
Number of pages10
JournalGlycobiology
Volume7
Issue number8
DOIs
Publication statusPublished - Dec 1997
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry

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    Fukumoto, S., Yamamoto, A., Hasegawa, T., Abe, K., Takamiya, K., Okada, M., Min, Z. J., Furukawa, K., Miyazaki, H., Tsuji, Y., Goto, G., Suzuki, M., Shiku, H., & Furukawa, K. (1997). Genetic remodeling of gangliosides resulted in the enhanced reactions to the foreign substances in skin. Glycobiology, 7(8), 1111-1120. https://doi.org/10.1093/glycob/7.8.1111