Related Experiment Videos
Somatostatin gene expression in the developing monkey frontal and cerebellar cortices
M Hayashi1, A Yamashita, K Shimizu
1Department of Physiology, Kyoto University, Aichi, Japan.
Brain Research. Developmental Brain Research
|December 1, 1990
Summary
Somatostatin (SRIF) mRNA shows distinct developmental patterns in monkey brain regions. SRIF mRNA is highly expressed in the developing cerebellum and cerebral cortex, declining to adult levels postnatally.
Area of Science:
- Neuroscience
- Developmental Biology
- Molecular Biology
Background:
- Somatostatin (SRIF) is a peptide hormone with diverse physiological roles, including neurodevelopment.
- Understanding SRIF gene expression is crucial for deciphering brain development and function.
Purpose of the Study:
- To investigate the temporal expression patterns of Somatostatin (SRIF) mRNA in the developing monkey frontal and cerebellar cortices.
- To compare SRIF mRNA levels across different developmental stages, from embryonic to adult.
Main Methods:
- Utilized dot blot and northern blot analyses to quantify SRIF mRNA levels.
- Examined tissue samples from embryonic day 120 (E120), E140, newborn (Nb), postnatal day 60 (P60), and adult (Ad.) stages.
- Included fetal and adult liver tissues as controls.
Main Results:
- In the cerebral frontal cortex, SRIF mRNA peaked at E140 and declined to adult levels by P60.
- The cerebellum exhibited high SRIF mRNA expression at E120, decreasing significantly by E140 and undetectable in later stages.
- No SRIF mRNA was detected in fetal or adult liver tissues.
Conclusions:
- SRIF gene expression is dynamically regulated during primate brain development, with region-specific profiles.
- The observed expression patterns suggest a significant role for Somatostatin in early cortical and cerebellar development.
- SRIF mRNA levels in the liver are negligible, highlighting its specific expression in neural tissues during development.