Multicellular rosettes have recently been appreciated as important cellular intermediates that are observed during the formation of diverse organ systems. These rosettes are polarized, transient epithelial structures that sometimes recapitulate the form of the adult organ. Rosette formation has been studied in various developmental contexts, such as in the zebrafish lateral line primordium, the...

Prieur, A. M., Bach, J. F., Griscelli, C., Judet, C., Ballet, J. J., Bach, C., and Mozziconacci, P. (1974). Archives of Disease in Childhood, 49, 438. Rheumatoid rosette in juvenile rheumatoid arthritis. The rheumatoid rosette test was performed in 159 children. Positive results were found more frequently in juvenile rheumatoid arthritis when more than four joints were involved. It is not to be...

Monoclonal antibody T-11, considered specific for the sheep erythrocyte rosette-associated antigen of T cells, reacted with leukemic blasts from four of 23 patients with morphologic and cytochemical criteria for acute myeloblastic leukemia (AML). Although 83%, 87%, 88%, and 96% of the blasts from these patients reacted with T-11, only one patient demonstrated a small percentage of heat-stable E...

Rosette-forming glioneuronal tumor (WHO grade I) is a rare neoplasm primarily arising in young adults that is characterized by distinctive neurocytic rosette formation, a spindled glial component resembling pilocytic astrocytoma, and a high incidence of PIK3CA mutation. Low-grade diffuse astrocytoma (WHO grade II), on the other hand, is far more common and is characterized by a high incidence o...

Total and early rosettes and rosette inhibition were measured in patients with cervical dysplasia and carcinoma in situ. Both total and early rosettes were significantly depressed in patients with carcinoma in situ; early rosettes were also significantly lower than were controls in women with severe dysplasia. Rosette inhibition titers were increased in most patients with moderate dysplasia and...

Image analysis of Arabidopsis (Arabidopsis thaliana) rosettes is an important nondestructive method for studying plant growth. Some work on automatic rosette measurement using image analysis has been proposed in the past but is generally restricted to be used only in combination with specific high-throughput monitoring systems. We introduce Rosette Tracker, a new open source image analysis tool...

The characteristic features of the dislocation microstructure that develops around indentations performed at room temperature on (001) GaAs single crystals are analysed by High Voltage Transmission Electron Microscopy. It is shown that perfect rosette dislocations (with Burgers vector parallel to the surface) are nucleated deeply in the crystal and never merge at the sample surface. Perpendicul...

Three classes of immunologically reactive cells, differing only slightly in size from each other, are required for the production of hemolysin-forming cells in culture. The three classes of cells can be detected in the normal mouse spleen by the combined use of rosette formation, velocity sedimentation, and irradiation. One class of cells (peak sedimentation velocity, 3.2 mm per hr) forms roset...