[Voluntary wheel running enhances cell proliferation and expression levels of BDNF, IGF1 and WNT4 in dentate gyrus of adult mice]. 2014

Jia-Ling Yu, and Li Ma, and Lan Ma, and Ye-Zheng Tao
The State Key Laboratory of Medical Neurobiology and Pharmacology Research Center, Shanghai Medical College and Institutes of Brain Science, Fudan University, Shanghai 200032, China. 071101066@fudan.edu.cn.

Adult hippocampal neurogenesis plays important roles in learning, memory and mood regulation. External factors, such as physical exercise, have been found to modulate adult hippocampal neurogenesis. Voluntary running enhances cell proliferation in subgranular zone (SGZ) and increases the number of new born neurons in rodents, but underlying mechanisms are not fully understood. In this study, we used BrdU assay to identify proliferating cells in 2-month-old C57BL/6 mice after 15 days of voluntary wheel running test. mRNA and protein levels for several neural factors in dentate gyrus, Ammon's horn, and cortex were also analyzed by RT-qPCR and Western blot assay after 15 days of voluntary wheel running. Our data show that voluntary wheel running for 15 days elevated the number of proliferation cells in dentate gyrus and significantly up-regulated the mRNA levels of Bdnf, Igf1 and Wnt4. The protein levels of BDNF and IGF1 in dentate gyrus were also increased after voluntary wheel running. These results indicate that the increase of adult hippocampal neurogenesis caused by voluntary wheel running for 15 days might be through up-regulating BDNF, IGF1 and WNT4 in dentate gyrus.

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
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D009043 Motor Activity Body movements of a human or an animal as a behavioral phenomenon. Activities, Motor,Activity, Motor,Motor Activities
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
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
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D055495 Neurogenesis Formation of NEURONS which involves the differentiation and division of STEM CELLS in which one or both of the daughter cells become neurons. Neurogeneses
D060528 Wnt4 Protein A Wnt protein that is involved in regulating multiple developmental processes such as the formation of the KIDNEY; ADRENAL GLANDS; MAMMARY GLANDS; the PITUITARY GLAND; and the female reproductive system. Defects in WNT4 are a cause of ROKITANSKY KUSTER HAUSER SYNDROME. Wnt-4 Proteins,Wnt-4 Protein,Wnt 4 Protein,Wnt 4 Proteins
D018891 Dentate Gyrus GRAY MATTER situated above the GYRUS HIPPOCAMPI. It is composed of three layers. The molecular layer is continuous with the HIPPOCAMPUS in the hippocampal fissure. The granular layer consists of closely arranged spherical or oval neurons, called GRANULE CELLS, whose AXONS pass through the polymorphic layer ending on the DENDRITES of PYRAMIDAL CELLS in the hippocampus. Dentate Fascia,Fascia Dentata,Gyrus Dentatus,Area Dentata,CA4 Field of Hippocampal Formation,CA4 Region, Hippocampal,CA4 of Lorente de No,Cornu Ammonis 4 Area,Hilus Gyri Dentati,Hilus of Dentate Gyrus,Hilus of the Fascia Dentata,Hippocampal CA4 Field,Hippocampal Sector CA4,Area Dentatas,CA4 Field, Hippocampal,CA4, Hippocampal Sector,Dentata, Area,Dentata, Fascia,Dentatas, Area,Fascia, Dentate,Field, Hippocampal CA4,Gyrus, Dentate,Hippocampal CA4 Region,Region, Hippocampal CA4,Sector CA4, Hippocampal

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