Emerging Role of Circular RNAs in Hepatocellular Carcinoma Immunotherapy DOI Open Access
Tasneem Abaza, Mostafa K. Abd El‐Aziz,

Kerolos Ashraf Daniel

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(22), P. 16484 - 16484

Published: Nov. 18, 2023

Hepatocellular carcinoma (HCC) is a highly fatal malignancy with limited therapeutic options and high recurrence rates. Recently, immunotherapeutic agents such as immune checkpoint inhibitors (ICIs) have emerged new paradigm shift in oncology. ICIs, programmed cell death protein 1 (PD-1) inhibitors, provided source of hope for patients advanced HCC. Yet, the eligibility criteria HCC ICIs are still missing piece puzzle. Circular RNAs (circRNAs) recently class non-coding that play fundamental role cancer pathogenesis. Structurally, circRNAs resistant to exonucleolytic degradation longer half-life than their linear counterparts. Functionally, possess capability influence various facets tumor microenvironment, especially at tumor–immune synapse. Notably, been observed control expression molecules within cells, potentially impeding effectiveness ICIs. Therefore, this renders them potential cancer-immune biomarkers diagnosis, prognosis, regimen determinants. In review, authors shed light on structure functional roles and, most importantly, highlight promising immunomodulation

Language: Английский

A Novel Protein Encoded by Exosomal CircATG4B Induces Oxaliplatin Resistance in Colorectal Cancer by Promoting Autophagy DOI

Zihao Pan,

Jun Zheng, Jiebin Zhang

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(35)

Published: Oct. 26, 2022

Oxaliplatin is commonly used in chemotherapeutic regimens for colorectal cancer (CRC) after surgical resection. However, acquired chemoresistance seriously affects the curative effect CRC patients, and mechanism still unclear. Here, a circular RNA, circATG4B identified, which plays an important role oxaliplatin resistance CRC. expression found to be increased exosomes secreted by oxaliplatin-resistant cells. In addition, results suggest that induces promoting autophagy. Further vivo vitro studies indicate of attributed its potential encode novel protein, circATG4B-222aa. Next, circATG4B-222aa function as decoy competitively interact with TMED10 prevent from binding ATG4B, leads autophagy followed induction chemoresistance. Therefore, this study reveals exosomal participates decreased chemosensitivity cells, providing new rationale therapeutic target

Language: Английский

Citations

78

CircRNAs in colorectal cancer: potential biomarkers and therapeutic targets DOI Creative Commons

Yuying Zhang,

Jingyan Luo,

Weikang Yang

et al.

Cell Death and Disease, Journal Year: 2023, Volume and Issue: 14(6)

Published: June 9, 2023

Abstract Globally, colorectal cancer (CRC) is the third most prevalent and second leading cause of cancer-related deaths. Circular RNAs (circRNAs) are single-stranded RNA with covalently closed-loop structures highly stable, conserved, abundantly expressed in various organs tissues. Recent research found abnormal circRNA expression CRC patients’ blood/serum, cells, tissues, exosomes. Furthermore, mounting data demonstrated that circRNAs crucial to development CRC. CircRNAs have been shown exert biological functions by acting as microRNA sponges, RNA-binding protein regulators gene splicing transcription, protein/peptide translators. These characteristics make potential markers for diagnosis prognosis, therapeutic targets, circRNA-based therapies. However, further studies still necessary improve understanding roles mechanisms In this review, up-to-date on role was examined, focusing their application targeted therapy, which would advance knowledge progression

Language: Английский

Citations

70

Mechanisms of immune checkpoint inhibitors: insights into the regulation of circular RNAS involved in cancer hallmarks DOI Creative Commons
Lingjiao Meng,

Haotian Wu,

Jiaxiang Wu

et al.

Cell Death and Disease, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 4, 2024

Abstract Current treatment strategies for cancer, especially advanced are limited and unsatisfactory. One of the most substantial advances in cancer therapy, last decades, was discovery a new layer immunotherapy approach, immune checkpoint inhibitors (ICIs), which can specifically activate cells by targeting checkpoints. Immune checkpoints type immunosuppressive molecules expressed on cells, regulate degree activation avoid autoimmune responses. ICIs, such as anti-PD-1/PD-L1 drugs, has shown inspiring efficacy broad applicability across various cancers. Unfortunately, not all patients benefit remarkably from overall response rates to ICIs remain relatively low types. Moreover, primary acquired resistance pose serious challenges clinical application immunotherapy. Thus, deeper understanding molecular biological properties regulatory mechanisms is urgently needed improve options fo r current therapies. Recently, circular RNAs (circRNAs) have attracted increasing attention, only due their involvement aspects hallmarks, but also impact shaping tumor microenvironment. In this review, we systematically summarize status existing roles circRNAs Meanwhile, aim settle issue an evidence-oriented manner that involved hallmarks effects

Language: Английский

Citations

61

Decoding hepatocarcinogenesis from a noncoding RNAs perspective DOI
Mostafa K. Abd El‐Aziz, Alyaa Dawoud, Caroline Joseph Kiriacos

et al.

Journal of Cellular Physiology, Journal Year: 2023, Volume and Issue: 238(9), P. 1982 - 2009

Published: July 14, 2023

Abstract Being a leading lethal malignancy worldwide, the pathophysiology of hepatocellular carcinoma (HCC) has gained lot interest. Yet, underlying mechanistic basis liver tumorigenesis is poorly understood. The role some coding genes and their respective translated proteins, then later on, noncoding RNAs (ncRNAs) such as microRNAs have been extensively studied in context HCC pathophysiology; however, implication long (lncRNAs) circular (circRNAs) indeed less investigated. As subclass ncRNAs which elusive for time ago, lncRNAs was found to be involved plentiful cellular functions DNA, RNA, proteins regulation. Hence, it undisputed that dysregulation profoundly contributes via diverse etiologies. Accordingly, represent hot research topic requires prime focus HCC. In this review, authors discuss breakthrough discoveries involving circRNAs contributed contemporary concepts how these could leveraged potential novel diagnostic prognostic biomarkers. Further, review article sheds light on future trends, thereby discussing pathological roles proliferation, migration, epithelial‐to‐mesenchymal transition. Along line reasoning, recommendations targets exploited achieve effective HCC‐related drug development highlighted.

Language: Английский

Citations

56

Emerging Role of Circular RNAs in Hepatocellular Carcinoma Immunotherapy DOI Open Access
Tasneem Abaza, Mostafa K. Abd El‐Aziz,

Kerolos Ashraf Daniel

et al.

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(22), P. 16484 - 16484

Published: Nov. 18, 2023

Hepatocellular carcinoma (HCC) is a highly fatal malignancy with limited therapeutic options and high recurrence rates. Recently, immunotherapeutic agents such as immune checkpoint inhibitors (ICIs) have emerged new paradigm shift in oncology. ICIs, programmed cell death protein 1 (PD-1) inhibitors, provided source of hope for patients advanced HCC. Yet, the eligibility criteria HCC ICIs are still missing piece puzzle. Circular RNAs (circRNAs) recently class non-coding that play fundamental role cancer pathogenesis. Structurally, circRNAs resistant to exonucleolytic degradation longer half-life than their linear counterparts. Functionally, possess capability influence various facets tumor microenvironment, especially at tumor–immune synapse. Notably, been observed control expression molecules within cells, potentially impeding effectiveness ICIs. Therefore, this renders them potential cancer-immune biomarkers diagnosis, prognosis, regimen determinants. In review, authors shed light on structure functional roles and, most importantly, highlight promising immunomodulation

Language: Английский

Citations

52