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A Review on the Role of SPRY4-IT1 in the Carcinogenesis
Soudeh Ghafouri-Fard1, Tayyebeh Khoshbakht2, Mohammad Taheri3
1Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract:
Sprouty RTK signaling antagonist 4-intronic transcript 1 (SPRY4-IT1) is a long non-coding RNA (lncRNA) encoded by a gene located on 5q31.3. This lncRNA has a possible role in the regulation of cell growth, proliferation, and apoptosis. Moreover, since SPRY4-IT1 controls levels of lipin 2, it is also involved in the biosynthesis of lipids. During the process of biogenesis, SPRY4-IT1 is produced as a primary transcript which is then cleaved to generate a mature transcript which is localized in the cytoplasm. SPRY4-IT1 has oncogenic roles in diverse tissues. A possible route of participation of SPRY4-IT1 in the carcinogenesis is through sequestering miRNAs such as miR-101-3p, miR-6882-3p and miR-22-3p. The sponging effect of SPRY4-IT1 on miR-101 has been verified in colorectal cancer, osteosarcoma, cervical cancer, bladder cancer, gastric cancer and cholangiocarcinoma. SPRY4-IT1 has functional interactions with HIF-1α, NF-κB/p65, AMPK, ZEB1, MAPK and PI3K/Akt signaling. We explain the role of SPRY4-IT1 in the carcinogenesis according to evidence obtained from cell lines, xenograft models and clinical studies.
Insights
Sprouty RTK signaling antagonist 4-intronic transcript 1 (SPRY4-IT1), a long non-coding RNA, promotes cancer by regulating cell growth and sequestering microRNAs. Its oncogenic roles are evident across various cancers and signaling pathways.
Area of Science:
- Molecular Biology
- Genetics
- Cancer Research
Background:
- Sprouty RTK signaling antagonist 4-intronic transcript 1 (SPRY4-IT1) is a long non-coding RNA (lncRNA) involved in regulating cell growth, proliferation, and apoptosis.
- SPRY4-IT1 plays a role in lipid biosynthesis by controlling lipin 2 levels.
- This lncRNA exhibits oncogenic properties in various tissues.
Purpose of the Study:
- To elucidate the role of SPRY4-IT1 in carcinogenesis.
- To explore the mechanisms by which SPRY4-IT1 contributes to cancer development.
- To investigate the interactions of SPRY4-IT1 with microRNAs and signaling pathways.
Main Methods:
- Analysis of cell lines, xenograft models, and clinical studies.
- Investigation of SPRY4-IT1's interaction with microRNAs (e.g., miR-101-3p).
- Examination of SPRY4-IT1's functional associations with signaling pathways (e.g., HIF-1α, NF-κB/p65, AMPK, ZEB1, MAPK, PI3K/Akt).
Main Results:
- SPRY4-IT1 acts as an oncogene in diverse tissues.
- SPRY4-IT1 sequesters microRNAs, including miR-101-3p, contributing to carcinogenesis.
- Evidence from cell lines, xenografts, and clinical studies supports SPRY4-IT1's oncogenic role and its interactions with key signaling pathways.
Conclusions:
- SPRY4-IT1 is implicated in the carcinogenesis process through microRNA sponging and modulation of cellular signaling pathways.
- The findings highlight SPRY4-IT1 as a potential therapeutic target in various cancers.
- Further research into SPRY4-IT1's functions can advance our understanding of cancer biology.
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