Age-related upregulation of insulin-like growth factor receptor type I in rat cerebellum. 2002

Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
Department of Anatomy, Seoul National University College of Medicine, 28 Yongon-Dong, Chongno-Gu, Seoul 110-799, South Korea. yoohee2@snu.ac.kr

We investigated age-related changes in insulin-like growth factor-I (IGF-I) receptor localization in the cerebellum using immunohistochemical staining. In adult rats, no immunoreactivity for IGF-I receptor was found in any layers of cerebellar cortex. In contrast, IGF-I receptor immunoreactivity was found in the cerebellar cortex of aged rats. The most prominent labeling was localized in the Purkinje cell layers and molecular layers. The cerebellar output neurons showed little immunoreactivity for IGF-I receptor in the nucleus medialis, interpositus and lateralis of adult rats. In aged cerebellar nuclei, IGF-I receptor immunoreactivity was observed in the surrounding neuropil. The first demonstration of upregulation of IGF-I receptor in aged rat cerebellum suggests that IGF-I may promote the survival of a degenerated population of the Purkinje neurons by increases in IGF-I receptor expression during aging.

UI MeSH Term Description Entries
D007334 Insulin-Like Growth Factor I A well-characterized basic peptide believed to be secreted by the liver and to circulate in the blood. It has growth-regulating, insulin-like, and mitogenic activities. This growth factor has a major, but not absolute, dependence on GROWTH HORMONE. It is believed to be mainly active in adults in contrast to INSULIN-LIKE GROWTH FACTOR II, which is a major fetal growth factor. IGF-I,Somatomedin C,IGF-1,IGF-I-SmC,Insulin Like Growth Factor I,Insulin-Like Somatomedin Peptide I,Insulin Like Somatomedin Peptide I
D002531 Cerebellum The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills. Cerebella,Corpus Cerebelli,Parencephalon,Cerebellums,Parencephalons
D000375 Aging The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time. Senescence,Aging, Biological,Biological Aging
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015854 Up-Regulation A positive regulatory effect on physiological processes at the molecular, cellular, or systemic level. At the molecular level, the major regulatory sites include membrane receptors, genes (GENE EXPRESSION REGULATION), mRNAs (RNA, MESSENGER), and proteins. Receptor Up-Regulation,Upregulation,Up-Regulation (Physiology),Up Regulation
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats
D017526 Receptor, IGF Type 1 A protein-tyrosine kinase receptor that is closely related in structure to the INSULIN RECEPTOR. Although commonly referred to as the IGF-I receptor, it binds both IGF-I and IGF-II with high affinity. It is comprised of a tetramer of two alpha and two beta subunits which are derived from cleavage of a single precursor protein. The beta subunit contains an intrinsic tyrosine kinase domain. IGF Type 1 Receptor,IGF-I Receptor,Receptor, IGF-I,Receptor, Insulin-Like Growth Factor I,Receptor, Insulin-Like Growth Factor Type 1,IGF-1 Receptor,Insulin-Like-Growth Factor I Receptor,Receptor, IGF Type 1 alpha Subunit,Receptor, IGF Type 1 beta Subunit,Receptors, IGF-1,Receptors, Insulin-Like-Growth Factor I,IGF 1 Receptor,IGF I Receptor,IGF-1 Receptors,Insulin Like Growth Factor I Receptor,Receptor, IGF I,Receptor, IGF-1,Receptors, IGF 1
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

Related Publications

Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
July 1996, The American journal of physiology,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
April 2011, Toxicologic pathology,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
August 2022, Structure (London, England : 1993),
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
May 2003, Investigative ophthalmology & visual science,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
January 1989, Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
January 1995, Journal of diabetes and its complications,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
July 2009, Neoplasia (New York, N.Y.),
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
February 1998, Breast cancer research and treatment,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
January 2017, Oncotarget,
Yoon Hee Chung, and Chung Min Shin, and Kyeung Min Joo, and Myeung Ju Kim, and Choong Ik Cha
April 2013, Cellular and molecular neurobiology,
Copied contents to your clipboard!