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Updated: Dec 24, 2025

miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Relationship between Sphk1/S1P and microRNAs in human cancers
Saeideh Gholamzadeh Khoei1,2, Hamid Sadeghi3, Pouria Samadi1,2
1Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Abstract:
Sphingosine kinases type 1 (SphK1) is a key enzyme in the phosphorylation of sphingosine to sphingosine 1-phosphate (S1P). Different abnormalities in SphK1 functions may correspond with poor prognosis in various cancers. Additionally, upregulated SphK1/S1P could promote cancer cell proliferation, angiogenesis, mobility, invasion, and metastasis. MicroRNAs as conserved small noncoding RNAs play major roles in cancer initiation, progression, metastasis, etc. Their posttranscriptionally mechanisms could affect the development of cancer growth or tumorigenesis suppression. The growing number of studies has described that various microRNAs can be regulated by SphK1, and its expression level can also be regulated by microRNAs. In this review, the relationship of SphK1 and microRNA functions and their interaction in human malignancies have been discussed. Based on them novel treatment strategies can be introduced.
Insights
Sphingosine kinase 1 (SphK1) and microRNAs are key players in cancer. Their complex interactions influence cancer progression and offer potential for novel therapeutic strategies in malignancies.
Area of Science:
- Oncology
- Molecular Biology
- Biochemistry
Background:
- Sphingosine kinase 1 (SphK1) phosphorylates sphingosine to sphingosine 1-phosphate (S1P), a critical signaling lipid.
- Aberrant SphK1/S1P signaling is linked to poor prognosis and promotes cancer hallmarks like proliferation, angiogenesis, and metastasis.
- MicroRNAs (miRNAs) are small noncoding RNAs regulating gene expression post-transcriptionally, impacting cancer initiation and progression.
Purpose of the Study:
- To review the intricate relationship between SphK1 and miRNA functions in human malignancies.
- To elucidate the reciprocal regulatory mechanisms between SphK1 and miRNAs in cancer.
- To explore the potential of targeting the SphK1-miRNA axis for novel cancer treatment strategies.
Main Methods:
- Literature review synthesizing current research on SphK1 and miRNA interactions in cancer.
- Analysis of studies detailing miRNA regulation of SphK1 expression and vice versa.
- Discussion of the implications of these interactions for cancer biology and therapeutic development.
Main Results:
- SphK1 activity influences the expression and function of various cancer-associated miRNAs.
- Conversely, specific miRNAs can modulate SphK1 expression levels and activity.
- This bidirectional regulation plays a significant role in cancer initiation, progression, and metastasis.
Conclusions:
- The interplay between SphK1 and miRNAs represents a crucial regulatory network in human cancers.
- Understanding these interactions is vital for deciphering cancer pathogenesis.
- Targeting the SphK1-miRNA axis holds promise for developing innovative therapeutic approaches against malignancies.
Related Concept Videos
MicroRNAs
MicroRNAs
Abnormal Proliferation
lncRNA - Long Non-coding RNAs

