The presence of multiple centrosomes in tumor cells is associated with the formation of multipolar mitotic spindles and results in aneuploidy of both daughter cells. Centrosome amplification is a feature of all cancer cells. We have previously described centrosome amplification in abnormal B cells. Further studies of centrosome amplification in different stages of B lineage development could pr...

Antisera and fluorescein isothiocyanate conjugates prepared for five strains of the Legionnaires bacteria were tested in both homologous and heterologous staining reactions with 10 isolates of the organism from patients in seven geographic areas. The strains were related but not identical as judged by the results of direct immunofluorescence staining. The conjugates were successfully used to de...

Theiler's murine encephalomyelitis virus (TMEV) produces a persistent central nervous system infection and chronic, inflammatory demyelinating disease in susceptible mice. TMEV antigen(s) and RNA genome have been detected in astrocytes, oligodendrocytes, and macrophages during persistence. Whether there is a predominant cell type in which TMEV persists has not been resolved. Since TMEV-induced ...

Eveland, Warren C. (University of Michigan, Ann Arbor). Use of a fluorescein-labeled sonically disrupted bacterial antigen to demonstrate antibody-producing cells. J. Bacteriol. 88:1476-1481. 1964.-Cells obtained by primary tissue culture of the spleens of chickens immunized with sonically disrupted Escherichia coli O111 organisms were stained with a fluorescein-labeled homologous antigen by us...

Background: P53 tumor suppressor gene mutation is one of the most common genetic alterations in human malignancies. The mutated from of the gene is stable and can be detected with immunohistochemistry methods. There is much controversy about the expression rate of this gene in malignant melanoma. Objective: To determine the frequency of the P53 antigen expression by sex, age, type and thickness...

Mature dendritic cells (DCs) are potent antigen-presenting cells essential for initiating successful antiviral immune responses and would therefore serve as an ideal target for viruses seeking to evade or delay the immune response by disrupting their function. We have previously reported that VZV productively infects immature DCs (A. Abendroth, G. Morrow, A. L. Cunningham, and B. Slobedman, J. ...