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The Regulatory Role of Non-coding RNAs on Programmed Cell Death Four in Inflammation and Cancer
Mengxiang Zhao1, Nisha Zhu1, Fengyao Hao1
1Central Laboratory Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China.
Abstract:
Programmed cell death 4 (PDCD4) is a tumor suppressor gene implicated in many cellular functions, including transcription, translation, apoptosis, and the modulation of different signal transduction pathways. The downstream mechanisms of PDCD4 have been well-discussed, but its upstream regulators have not been systematically summarized. Noncoding RNAs (ncRNAs) are gene transcripts with no protein-coding potential but play a pivotal role in the regulation of the pathogenesis of solid tumors, cardiac injury, and inflamed tissue. In recent studies, many ncRNAs, especially microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), were found to interact with PDCD4 to manipulate its expression through transcriptional regulation and function as oncogenes or tumor suppressors. For example, miR-21, as a classic oncogene, was identified as the key regulator of PDCD4 by targeting its 3'-untranslated region (UTR) to promote tumor proliferation, migration, and invasion in colon, breast, and bladder carcinoma. Therefore, we reviewed the recently emerging pleiotropic regulation of PDCD4 by ncRNAs in cancer and inflammatory disorders and aimed to shed light on the mechanisms of associated diseases, which could be conducive to the development of novel treatment strategies for PDCD4-induced diseases.
Insights
Noncoding RNAs (ncRNAs) regulate Programmed Cell Death 4 (PDCD4), a tumor suppressor. This review explores how ncRNAs impact PDCD4 expression and function in cancer and inflammatory diseases, offering insights for new treatments.
Area of Science:
- Molecular Biology
- Oncology
- Genetics
Background:
- Programmed cell death 4 (PDCD4) is a crucial tumor suppressor involved in transcription, translation, and apoptosis.
- While PDCD4's downstream effects are known, its upstream regulation, particularly by noncoding RNAs (ncRNAs), remains underexplored.
- ncRNAs, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), significantly influence the pathogenesis of various diseases.
Purpose of the Study:
- To systematically review the pleiotropic regulation of PDCD4 by ncRNAs in cancer and inflammatory disorders.
- To elucidate the mechanisms by which ncRNAs modulate PDCD4 expression and function.
- To highlight the potential of targeting ncRNA-PDCD4 interactions for novel therapeutic strategies.
Main Methods:
- Literature review of recent studies on ncRNA-PDCD4 interactions.
- Analysis of ncRNA targeting mechanisms, including 3'-untranslated region (UTR) binding.
- Synthesis of findings related to PDCD4 regulation in cancer and inflammatory conditions.
Main Results:
- Numerous ncRNAs, such as miR-21, directly target PDCD4, influencing its expression and function.
- ncRNAs can act as oncogenes or tumor suppressors by modulating PDCD4 levels.
- Dysregulation of PDCD4 by ncRNAs is implicated in tumor proliferation, migration, and invasion.
Conclusions:
- ncRNAs play a critical role in regulating PDCD4 in cancer and inflammatory diseases.
- Understanding these ncRNA-PDCD4 interactions is key to developing targeted therapies.
- This review provides a foundation for future research into ncRNA-based treatments for PDCD4-associated pathologies.
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