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AKR/Gross leukemia virus-induced tumor reactive cytotoxic T lymphocyte (CTL) clones were derived from C57BL/6 spleen cells. Analysis of their specificity pattern was performed by using a panel of target cells such as E male G2 and AKR.H-2bSL1 (susceptible tumors to polyclonal anti-AKR/Gross virus CTL), and cl. 18-5 and cl. 18-12 (insusceptible variant(More)
A substance inhibiting Escherichia coli motility was isolated by "motilometry" assay from the culture broth of Streptomyces sp. strain NR9GG8 and was found to be identical with desferrioxamine B. Its inhibitory effect was reversed by cyclic adenosine 3',5'-monophosphate (cAMP), while the motility stimulation by cAMP was diminished by this inhibitor. Its(More)
Spontaneously occurring lymphoma/leukemias in AKR and AKR.H-2b mice are characterized by their expression of the Gross cell surface antigen (GCSA) and their weak immunogenicity. Although of a responder H-2 type, AKR.H-2b mice could not raise cytolytic T lymphocytes (CTLs) against a syngeneic GCSA+ tumor (AKR.H-2bSL1). In contrast, AKR.H-2b:Fv-1b mice served(More)
Microsporidian Encephalitozoon cuniculi has a unique organelle called a polar tube (PT), the extrusion of which is absolutely required to invade a host cell. We recently detected anti-E. cuniculi PT immunoglobulin (Ig) M antibodies in sera from many healthy individuals. The present one-dimensional (1-D) immunoblot analysis predominantly detected a band at(More)
When assayed by a newly devised, simple and quantitative method, "motilometry", the motility of E. coli S-26 was found stimulated by cyclic adenosine 3':5'-monophosphate (cyclic AMP) and 8-hydroxy cyclic AMP as well as histamine, catecholamines and inhibited by cyclic guanosine 3':5'-monophosphate (cyclic GMP). The stimulation elicited by cyclic AMP or(More)
A substance inhibiting Escherichia coli motility was isolated by "motilometry" assay from the culture broth of Streptomyces sp. strain NR9GG8 and was found to be identical with desferrioxamine B. Its inhibitory effect was reversed by cyclic adenosine 3',5'-monophosphate (cAMP), while the motility stimulation by cAMP was diminished by this inhibitor. Its(More)
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