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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
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MicroRNA expression profiling in canine prostate cancer
Masanori Kobayashi1, Akiko Saito, Yoshikazu Tanaka
1Laboratory of Reproduction, Division of Therapeutic Science II, Department of Clinical Veterinary Medicine, School of Veterinary Science, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan.
The Journal of Veterinary Medical Science
|February 28, 2017
Summary
MicroRNAs (miRs) altered in canine prostate cancer (cPCa) were identified. Specific up-regulated and down-regulated miRs show potential as early diagnostic markers and therapeutic targets for this untreatable cancer.
Area of Science:
- Oncology
- Molecular Biology
- Veterinary Medicine
Background:
- Canine prostate cancer (cPCa) is a prevalent, untreatable malignancy.
- MicroRNAs (miRs) are small non-coding RNAs that play critical roles in cancer development, acting as oncogenes or tumor suppressors.
Purpose of the Study:
- To characterize the expression profiles of microRNAs (miRs) in canine prostate cancer (cPCa) tissue.
- To identify specific miRs that are differentially expressed in cPCa compared to non-tumor tissue.
Main Methods:
- Real-time PCR was employed to quantify the expression levels of 277 mature miRs.
- Prostatic tissue samples from five dogs with cPCa and five non-tumor controls were analyzed.
Main Results:
- Five miRs (miR-18a, 95, 221, 222, and 330) were significantly up-regulated in cPCa.
- Fourteen miRs (miR-127, 148a, 205, 299, 329b, 335, 376a, 376c, 379, 380, 381, 411, 487b, and 495) were significantly down-regulated in cPCa (P<0.05).
Conclusions:
- The identified differentially expressed miRs are specifically altered in canine prostate cancer.
- These miRs hold promise as potential biomarkers for early diagnosis of cPCa.
- The findings suggest potential for developing novel microRNA-based therapeutic strategies for cPCa.
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