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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
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Prostate stem cell antigen is expressed in normal and malignant human brain tissues
Hiroe Ono1, Hiromi Sakamoto1, Teruhiko Yoshida1
1Division of Genetics, National Cancer Center Research Institute, Tokyo 104-0045, Japan.
Oncology Letters
|February 14, 2018
Summary
Prostate stem cell antigen (PSCA) is found in normal human brain cells and various brain tumors. While PSCA may be a target for brain tumor therapy, its presence in normal cells could cause adverse effects.
Area of Science:
- Neuroscience
- Oncology
- Molecular Biology
Background:
- Prostate stem cell antigen (PSCA) is a cell surface protein with known roles in prostate and gastric cancers.
- PSCA's expression in the human brain and its implications for neurological conditions have not been fully understood.
- Previous research indicated weak PSCA expression in normal astrocytes but aberrant expression in gliomas.
Purpose of the Study:
- To investigate the expression of PSCA in the normal human brain.
- To identify PSCA expression patterns in various human brain tumors.
- To evaluate PSCA as a potential therapeutic target for brain tumors.
Main Methods:
- Immunohistochemistry was used to detect PSCA expression.
- Analysis included normal human brain tissue and a range of brain tumor samples.
Main Results:
- PSCA was identified in normal neural and choroid plexus cells of the human brain.
- PSCA expression was confirmed in medulloblastoma, glioma, papilloma, papillary carcinoma of the choroid plexus, ependymoma, and meningioma.
- The study observed PSCA expression in both normal brain cells and various brain tumors.
Conclusions:
- PSCA is expressed in normal human brain cells, including neurons and choroid plexus cells.
- PSCA is present in a variety of brain tumors, suggesting a potential tumor-promoting role.
- Targeting PSCA for brain tumor therapy may lead to adverse effects due to its expression in normal neural tissues.
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