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  TNF revisited: TNF-independent antitumor activity in sera of mice sensitized with Propionibacterium acnes and challenged with lipopolysaccharide

Schwamberger, G., Hammerl, P., Ferber, E., Freudenberg, M., & Galanos, C. (2003). TNF revisited: TNF-independent antitumor activity in sera of mice sensitized with Propionibacterium acnes and challenged with lipopolysaccharide. Journal of Leukocyte Biology, 74(6), 1056-1063.

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 Creators:
Schwamberger, Günter, Author
Hammerl, Peter, Author
Ferber, Ernst, Author
Freudenberg, Marina1, Author              
Galanos, Chris2, Author              
Affiliations:
1Department of Developmental Immunology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243647              
2Emeritus Group: Cellular Immunology, Max Planck Institute of Immunobiology and Epigenetics, Max Planck Society, ou_2243649              

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 Abstract: Sera of mice sensitized with bacteria and subsequently challenged with lipopolysaccharide promote hemorrhagic necrosis of tumors in vivo and display cytotoxic activity against tumor cells in vitro, which has been attributed to the induction of tumor necrosis factor (TNF). Here, we describe the induction of a previously unrecognized antitumor activity in such sera, which is distinct from TNF but displays tumor-specific cytocidal activity in vitro as well as potent tumor-regressing activity in vivo. Biochemical analysis of this activity yielded a molecular mass of approximately ~150 kDa, closely resembling a novel tumoricidal factor of murine macrophages (Mφ) termed MTC 170 (Mφ tumor cytotoxin, approximate molecular mass 170 kDa), which we have previously proposed to constitute a major effector pathway for the destruction of tumor cells by activated Mφ.

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Language(s): eng - English
 Dates: 2003-12
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 126768
ISI: 000187392600013
 Degree: -

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Title: Journal of Leukocyte Biology
  Alternative Title : J. Leukoc. Biol.
Source Genre: Journal
 Creator(s):
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Publ. Info: -
Pages: - Volume / Issue: 74 (6) Sequence Number: - Start / End Page: 1056 - 1063 Identifier: ISSN: 0741-5400