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. 1980 Jun;28(3):654-9.
doi: 10.1128/iai.28.3.654-659.1980.

Enhancement of resistance to infections by endotoxin-induced serum factor from Mycobacterium bovis BCG-infected mice

M A Parant, F J Parant, L A Chedid

Enhancement of resistance to infections by endotoxin-induced serum factor from Mycobacterium bovis BCG-infected mice

M A Parant et al. Infect Immun. 1980 Jun.

Abstract

Necrosis of a variety of transplanted murine tumors can be induced by serum from Mycobacterium bovis BCG-treated mice challenged with a lethal dose of endotoxin. Results reported here show that the tumor necrosis serum (TNS) enhances resistance to infections, protecting mice against two types of challenges, either with Klebsiella pneumoniae or with the intracellular parasite Listeria monocytogenes. Moreover, TNS activity was demonstrated in animals which are refractory to lipopolysaccharide and very susceptible to infections, such as 8-day-old mice and adult C3H/He mice. Protection passively transferred by TNS was not related to antibodies, since it was not decreased by absorption with homologous organisms.

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