Radioimmunodetection is a nuclear medicine technique that depends on in vivo detection of localization of antibodies and antibody forms carrying radioactivity for the purpose of diagnosis in patients with cancer. Current methods take advantage of tracers suitable for high resolution gamma-camera imaging, such as 99mTc and 111In, for common tumors, such as colon and lung cancers. In addition, tracers such as 125I have been used for the intraoperative detection of metastatic deposits. These methods detect from 75 to 90% of metastatic deposits with high specificity, and typically contribute important diagnostic information, even in 25-40% of patients with occult disease.
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SCPL48 regulates the vessel cell programmed cell death during xylem development in Arabidopsis thaliana.
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State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, The Tree and Ornamental Plant Breeding and Biotechnology Laboratory of National Forestry and Grassland Administration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China. Electronic address:
Secondary cell wall (SCW) deposition is tightly coordinated with programmed cell death (PCD) during xylem development and plays a crucial role in plant stress responses. In this study, we characterized a serine carboxypeptidase-like gene, SCPL48, which exhibits xylem cell-specific expression patterns in stem xylem during vascular development. The scpl48 plants exhibited reduced stem xylem cell numbers, particularly vessel cells, accompanied by delayed organelle degradation during PCD and increased secondary wall thickness in xylem vessel cells.
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University of Southern California, Department of Civil and Environmental Engineering, Los Angeles, California, USA. Electronic address:
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