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Interplay of long non-coding RNAs and TGF/SMAD signaling in different cancers
Ammad Ahmad Farooqi1, Rukset Attar2, Muhammad Zahid Qureshi3
1Laboratory for Translational Oncology and Personalized Medicine, Rashid Latif Medical College, Lahore.
Abstract:
Based on the exciting insights gleaned from decades of ground-breaking research, it has become evident that deregulated signaling pathways play instrumental role in cancer development and progression. Interestingly discovery of non-coding RNAs has revolutionized our understanding related to transcription, post-transcription and translation. Modern era has witnessed landmark discoveries in the field of molecular cancer and non-coding RNA biology has undergone tremendous broadening. There has been an exponential growth in the list of publications related to non-coding RNAs and overwhelmingly increasing classes of non-coding RNAs are adding new layers of complexity to already complicated nature of cancer. Regulation of TGF/SMAD signaling by miRNAs and LncRNAs has opened new horizons for therapeutic targeting of TGF/SMAD pathway. In this review we have set spotlight on central role of LncRNAs in modulation of TGF/SMAD pathway. Major proportion of the available evidence is underlining positive role of LncRNAs in contextual regulation of TGF/SMAD pathway. LncRNAs are vital to these regulatory networks because they provide a background support to make the TGF/SMAD mediated intracellular signaling more smooth or make transduction cascade more flexible in response to cues from extracellular environment. Therefore, in accordance with this notion, MALAT1, OIP5-AS1, MIR100HG, HOTAIR, ANRIL, PVT1, AFAP1-AS1, SPRY4-IT, ZEB2NAT, TUG1 and Lnc-SNHG1 have been reported to positively regulate TGF/SMAD signaling. In this review, we have focused on the regulation of TGF/SMAD signaling by LncRNAs and how these non-coding RNAs can be therapeutically exploited. Short-interfering RNA (siRNA) and natural products are currently being tested for efficacy against different LncRNAs. Nanotechnological strategies to efficiently deliver LncRNA-targeting siRNAs are also currently being investigated in different cancers.
Insights
Long non-coding RNAs (LncRNAs) play a key role in regulating the TGF/SMAD signaling pathway, crucial for cancer development. Targeting these LncRNAs offers promising new therapeutic strategies for cancer treatment.
Area of Science:
- Molecular Biology
- Cancer Research
- RNA Biology
Background:
- Deregulated signaling pathways are central to cancer development and progression.
- Non-coding RNAs (ncRNAs) have significantly advanced our understanding of gene regulation.
- The complexity of cancer is further elucidated by the discovery of diverse ncRNA classes.
Purpose of the Study:
- To review the central role of long non-coding RNAs (LncRNAs) in modulating the Transforming Growth Factor/ SMAD (TGF/SMAD) signaling pathway.
- To explore the therapeutic potential of targeting LncRNAs involved in TGF/SMAD signaling.
Main Methods:
- Literature review focusing on LncRNAs and their interaction with the TGF/SMAD pathway.
- Analysis of evidence supporting the regulatory role of specific LncRNAs (e.g., MALAT1, HOTAIR, ANRIL) in TGF/SMAD signaling.
- Overview of current and emerging therapeutic strategies targeting LncRNAs.
Main Results:
- LncRNAs play a significant, predominantly positive, role in the contextual regulation of TGF/SMAD signaling.
- Specific LncRNAs are identified as key modulators, influencing intracellular signaling and transduction cascades.
- Evidence suggests LncRNAs enhance the flexibility and efficiency of TGF/SMAD-mediated signaling.
Conclusions:
- LncRNAs are vital components in the regulatory networks of TGF/SMAD signaling.
- Targeting LncRNAs presents a promising avenue for novel cancer therapeutics.
- Therapeutic strategies including short-interfering RNA (siRNA) and nanotechnological delivery systems are under investigation.
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