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Giannakakis A, Tsifintaris M, Gouzouasis V, Ow GS, Aau MY, Papp C, Ivshina AV, Kuznetsov VA. KDM7A-DT induces genotoxic stress, tumorigenesis, and progression of p53 missense mutation-associated invasive breast cancer. Front Oncol 2024; 14:1227151. [PMID: 38756663 PMCID: PMC11097164 DOI: 10.3389/fonc.2024.1227151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 04/12/2024] [Indexed: 05/18/2024] Open
Abstract
Stress-induced promoter-associated and antisense lncRNAs (si-paancRNAs) originate from a reservoir of oxidative stress (OS)-specific promoters via RNAPII pausing-mediated divergent antisense transcription. Several studies have shown that the KDM7A divergent transcript gene (KDM7A-DT), which encodes a si-paancRNA, is overexpressed in some cancer types. However, the mechanisms of this overexpression and its corresponding roles in oncogenesis and cancer progression are poorly understood. We found that KDM7A-DT expression is correlated with highly aggressive cancer types and specific inherently determined subtypes (such as ductal invasive breast carcinoma (BRCA) basal subtype). Its regulation is determined by missense TP53 mutations in a subtype-specific context. KDM7A-DT transcribes several intermediate-sized ncRNAs and a full-length transcript, exhibiting distinct expression and localization patterns. Overexpression of KDM7A-DT upregulates TP53 protein expression and H2AX phosphorylation in nonmalignant fibroblasts, while in semi-transformed fibroblasts, OS superinduces KDM7A-DT expression in a TP53-dependent manner. KDM7A-DT knockdown and gene expression profiling in TP53-missense mutated luminal A BRCA variant, where it is abundantly expressed, indicate its significant role in cancer pathways. Endogenous over-expression of KDM7A-DT inhibits DNA damage response/repair (DDR/R) via the TP53BP1-mediated pathway, reducing apoptosis and promoting G2/M checkpoint arrest. Higher KDM7A-DT expression in BRCA is associated with KDM7A-DT locus gain/amplification, higher histologic grade, aneuploidy, hypoxia, immune modulation scores, and activation of the c-myc pathway. Higher KDM7A-DT expression is associated with relatively poor survival outcomes in patients with luminal A or Basal subtypes. In contrast, it is associated with favorable outcomes in patients with HER2+ER- or luminal B subtypes. KDM7A-DT levels are coregulated with critical transcripts and proteins aberrantly expressed in BRCA, including those involved in DNA repair via non-homologous end joining and epithelial-to-mesenchymal transition pathway. In summary, KDM7A-DT and its si-lncRNA exhibit several intrinsic biological and clinical characteristics that suggest important roles in invasive BRCA and its subtypes. KDM7A-DT-defined mRNA and protein subnetworks offer resources for identifying clinically relevant RNA-based signatures and prospective targets for therapeutic intervention.
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Affiliation(s)
- Antonis Giannakakis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- University Research Institute for the Study of Genetic & Malignant Disorders in Childhood, National and Kapodistrian University of Athens, Athens, Greece
| | - Margaritis Tsifintaris
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Vasileios Gouzouasis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ghim Siong Ow
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Mei Yee Aau
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Csaba Papp
- Department of Urology, The State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
- Department of Biochemistry and Molecular Biology, The State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
| | - Anna V. Ivshina
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Vladimir A. Kuznetsov
- Bioinformatics Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Urology, The State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
- Department of Biochemistry and Molecular Biology, The State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
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Jiang Y, Xu N. The Emerging Role of Autophagy-Associated lncRNAs in the Pathogenesis of Neurodegenerative Diseases. Int J Mol Sci 2023; 24:ijms24119686. [PMID: 37298636 DOI: 10.3390/ijms24119686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Neurodegenerative diseases (NDDs) have become a significant global public health problem and a major societal burden. The World Health Organization predicts that NDDs will overtake cancer as the second most common cause of human mortality within 20 years. Thus, it is urgently important to identify pathogenic and diagnostic molecular markers related to neurodegenerative processes. Autophagy is a powerful process for removing aggregate-prone proteins in neurons; defects in autophagy are often associated with the pathogenesis of NDDs. Long non-coding RNAs (lncRNAs) have been suggested as key regulators in neurodevelopment; aberrant regulation of lncRNAs contributes to neurological disorders. In this review, we summarize the recent progress in the study of lncRNAs and autophagy in the context of neurodegenerative disorders, especially Alzheimer's disease (AD) and Parkinson's disease (PD). The information presented here should provide guidance for future in-depth investigations of neurodegenerative processes and related diagnostic molecular markers and treatment targets.
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Affiliation(s)
- Yapei Jiang
- State Key Laboratory of Chemical Oncogenomics, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Open FIESTA Center, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Naihan Xu
- State Key Laboratory of Chemical Oncogenomics, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
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Elangovan A, Venkatesan D, Selvaraj P, Pasha MY, Babu HWS, Iyer M, Narayanasamy A, Subramaniam MD, Valsala Gopalakrishnan A, Kumar NS, Vellingiri B. miRNA in Parkinson's disease: From pathogenesis to theranostic approaches. J Cell Physiol 2023; 238:329-354. [PMID: 36502506 DOI: 10.1002/jcp.30932] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/22/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
Parkinson's disease (PD) is an age associated neurological disorder which is specified by cardinal motor symptoms such as tremor, stiffness, bradykinesia, postural instability, and non-motor symptoms. Dopaminergic neurons degradation in substantia nigra region and aggregation of αSyn are the classic signs of molecular defects noticed in PD pathogenesis. The discovery of microRNAs (miRNA) predicted to have a pivotal part in various processes regarding regularizing the cellular functions. Studies on dysregulation of miRNA in PD pathogenesis has recently gained the concern where our review unravels the role of miRNA expression in PD and its necessity in clinical validation for therapeutic development in PD. Here, we discussed how miRNA associated with ageing process in PD through molecular mechanistic approach of miRNAs on sirtuins, tumor necrosis factor-alpha and interleukin-6, dopamine loss, oxidative stress and autophagic dysregulation. Further we have also conferred the expression of miRNAs affected by SNCA gene expression, neuronal differentiation and its therapeutic potential with PD. In conclusion, we suggest more rigorous studies should be conducted on understanding the mechanisms and functions of miRNA in PD which will eventually lead to discovery of novel and promising therapeutics for PD.
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Affiliation(s)
- Ajay Elangovan
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Dhivya Venkatesan
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Priyanka Selvaraj
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Md Younus Pasha
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Harysh Winster Suresh Babu
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India.,Department of Zoology, Disease Proteomics Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Mahalaxmi Iyer
- Livestock Farming, & Bioresources Technology, Tamil Nadu, India
| | - Arul Narayanasamy
- Department of Zoology, Disease Proteomics Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India
| | - Mohana Devi Subramaniam
- Department of Genetics and Molecular Biology, Vision Research Foundation, Tamil Nadu, Chennai, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Bioscience and Technology, Vellore Institute of Technology (VIT), Tamil Nadu, Vellore, India
| | | | - Balachandar Vellingiri
- Department of Human Genetics and Molecular Biology, Human Molecular Cytogenetics and Stem Cell Laboratory, Bharathiar University, Tamil Nadu, Coimbatore, India.,Stem cell and Regenerative Medicine/Translational Research, Department of Zoology, School of Basic Sciences, Central University of Punjab, Punjab, Bathinda, India
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Zhang H, Liu X, Liu Y, Liu J, Gong X, Li G, Tang M. Crosstalk between regulatory non-coding RNAs and oxidative stress in Parkinson’s disease. Front Aging Neurosci 2022; 14:975248. [PMID: 36016854 PMCID: PMC9396353 DOI: 10.3389/fnagi.2022.975248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Parkinson’s disease is the second most common neurodegenerative disease after Alzheimer’s disease, which imposes an ever-increasing burden on society. Many studies have indicated that oxidative stress may play an important role in Parkinson’s disease through multiple processes related to dysfunction or loss of neurons. Besides, several subtypes of non-coding RNAs are found to be involved in this neurodegenerative disorder. However, the interplay between oxidative stress and regulatory non-coding RNAs in Parkinson’s disease remains to be clarified. In this article, we comprehensively survey and overview the role of regulatory ncRNAs in combination with oxidative stress in Parkinson’s disease. The interaction between them is also summarized. We aim to provide readers with a relatively novel insight into the pathogenesis of Parkinson’s disease, which would contribute to the development of pre-clinical diagnosis and treatment.
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Affiliation(s)
- Hantao Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Xiaoyan Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yi Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, China
- Institute of Animal Husbandry, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Junlin Liu
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Xun Gong
- Department of Rheumatology & Immunology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Gang Li
- Department of Vascular Surgery, The Second Affiliated Hospital of Shandong First Medical University, Taian, China
- *Correspondence: Gang Li Min Tang
| | - Min Tang
- School of Life Sciences, Jiangsu University, Zhenjiang, China
- *Correspondence: Gang Li Min Tang
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