Intraglandular and extraglandular synthesis of proteins secreted by the accessory reproductive glands of the colorado potato beetle,Leptinotarsa decemlineata |
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| Affiliation: | 1. Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;2. Department of Otolaryngology-Head & Neck Surgery/Surgical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;3. Department of Biostatistics, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;4. Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada;5. Department of Medical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;6. Department of Pathology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada;1. School of Pharmacy and Life Science, Jiujiang University, Jiujiang, Jiangxi 332005, China;2. School of Basic Medicine, Jiujiang University, Jiujiang, Jiangxi 332005, China;3. School of Medicine, Indiana University, Indianapolis, IN 46202, USA;1. Department of Oncology, Nottingham University Hospitals, Nottingham NG5 1PB, UK;2. Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;3. Academic Unit of Oncology, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham University Hospitals, Nottingham NG5 1PB, UK;4. School of Science and Technology, Nottingham Trent University, Clifton Campus, Nottingham NG11 8NS, UK;5. Department of Pathology, Division of Cancer and Stem Cells, School of Medicine, University of Nottingham, Nottingham University Hospitals, Nottingham NG5 1PB, UK;1. Radiotherapy 2 Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy;2. Clinical Department, CNAO (National Center for Oncological Hadrontherapy), Pavia, Italy;3. Medical Physics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy;4. Radiotherapy Division, European Institute of Oncology, Milan, Italy |
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| Abstract: | The accessory reproductive glands (ARGs) of the male Colorado beetle secrete about 50 polypeptides with molecular weights varying between 15,000 and 650,000. Most of these polypeptides are synthesized by the gland itself. However, some secretory polypeptides originate from the fat body and are transported to the ARGs by the haemolymph. One of these extraglandular secretory polypeptides corresponds with one of the two subunits of the major haemolymph lipoprotein. The second subunit of this lipoprotein is not secreted, but is accumulated at the microvillar zone of the secretory cells. |
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