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Mohanta YK, Biswas K, Mishra AK, Patra B, Mishra B, Panda J, Avula SK, Varma RS, Panda BP, Nayak D. Amelioration of gold nanoparticles mediated through Ocimum oil extracts induces reactive oxygen species and mitochondrial instability against MCF-7 breast carcinoma. RSC Adv 2024; 14:27816-27830. [PMID: 39224640 PMCID: PMC11367626 DOI: 10.1039/d4ra04807e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Phytomedicines are potential immunity-boosting components with effective anticystic properties, minimal side effects, and biomedical applications, making them valuable for combating various diseases. India is renowned globally for Ayurveda, an ancient treatment methodology known for its holistic approach in identifying the root cause of diseases. Tulsi (Ocimum sanctum) is a common household medicine in India. While essential oils from plants like Tulsi have long been recognized for their medicinal properties, there is a gap in understanding their potential in synthesizing gold nanoparticles (AuNPs) and their efficacy against breast carcinoma, particularly in the context of immunosuppressive conditions. We investigated the potential application of essential oils isolated from O. sanctum in the synthesis of AuNPs and their efficacy against MCF-7 breast carcinoma. Gas chromatography-mass spectroscopy identified compounds with potential anticancer effects against breast cancer cells. Synthesised AuNPs displayed high hemocompatibility and antimicrobial activity against nosocomial Pseudomonas aeruginosa, Escherichia coli, Vibrio cholerae, and Bacillus subtilis strains. Os-AuNPs induced chromosomal instability and mitotic arrest in the G2/M cell cycle phase. Subsequent fluorescence and cell cytometry studies demonstrated the systemic release of ROS, depolarisation of mitochondrial membrane potential, and production of apoptotic bodies. DNA damage and comet assays confirmed the anticancer potential of synthesised AuNPs. This study illuminates the potential of O. sanctum-derived AuNPs in breast carcinoma treatment, paving the way for future AuNP-based therapies in biomedicine.
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Affiliation(s)
- Yugal Kishore Mohanta
- Nano-biotechnology and Translational Knowledge Laboratory, Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya Techno City, 9th Mile, Baridua, Ri-Bhoi 793101 Meghalaya India
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Kelambakkam 603103 Tamil Nadu India
| | - Kunal Biswas
- Centre for Nanoscience & Nanotechnology International Research Centre, Sathyabama Institute of Science and Technology Jeppiaar Nagar, Rajiv Gandhi Salai Chennai 600119 India
| | | | - Biswajit Patra
- Department of Botany, Fakir Mohan University Balasore 756020 Odisha India
| | - Bishwambhar Mishra
- Department of Biotechnology, Chaitanya Bharathi Institute of Technology (CBIT) Gandipet Hyderabad 500075 Telangana India
| | - Jibanjyoti Panda
- Nano-biotechnology and Translational Knowledge Laboratory, Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya Techno City, 9th Mile, Baridua, Ri-Bhoi 793101 Meghalaya India
| | - Satya Kumar Avula
- Natural and Medical Sciences Research Centre, University of Nizwa Nizwa 616 Oman
| | - Rajender S Varma
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, 20 Federal University of São Carlos 13565-905 São Carlos SP Brazil
| | - Bibhu Prasad Panda
- Environmental Sciences, Department of Chemistry, ITER, Siksha "O" Anusandhan (Deemed to be University) Bhubaneswar 751030 Odisha India
| | - Debasis Nayak
- Bioresources and Traditional Knowledge Laboratory, Department of Wildlife and Biodiversity Conservation, Maharaja Sriram Chandra Bhanja Deo University Sriram Chandra Vihar, Takatpur Baripada 757003 India
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Mishra J, Chakraborty S, Nandi P, Manna S, Baral T, Niharika, Roy A, Mishra P, Patra SK. Epigenetic regulation of androgen dependent and independent prostate cancer. Adv Cancer Res 2024; 161:223-320. [PMID: 39032951 DOI: 10.1016/bs.acr.2024.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Prostate cancer is one of the most common malignancies among men worldwide. Besides genetic alterations, epigenetic modulations including DNA methylation, histone modifications and miRNA mediated alteration of gene expression are the key driving forces for the prostate tumor development and cancer progression. Aberrant expression and/or the activity of the epigenetic modifiers/enzymes, results in aberrant expression of genes involved in DNA repair, cell cycle regulation, cell adhesion, apoptosis, autophagy, tumor suppression and hormone response and thereby disease progression. Altered epigenome is associated with prostate cancer recurrence, progression, aggressiveness and transition from androgen-dependent to androgen-independent phenotype. These epigenetic modifications are reversible and various compounds/drugs targeting the epigenetic enzymes have been developed that are effective in cancer treatment. This chapter focuses on the epigenetic alterations in prostate cancer initiation and progression, listing different epigenetic biomarkers for diagnosis and prognosis of the disease and their potential as therapeutic targets. This chapter also summarizes different epigenetic drugs approved for prostate cancer therapy and the drugs available for clinical trials.
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Affiliation(s)
- Jagdish Mishra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Subhajit Chakraborty
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Piyasa Nandi
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Soumen Manna
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Tirthankar Baral
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Niharika
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Ankan Roy
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Prahallad Mishra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India.
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Yuan Q, Wang R, Li X, Sun F, Lin J, Fu Z, Zhang J. DNMT1/miR-152-3p/SOS1 signaling axis promotes self-renewal and tumor growth of cancer stem-like cells derived from non-small cell lung cancer. Clin Epigenetics 2024; 16:55. [PMID: 38622665 PMCID: PMC11020669 DOI: 10.1186/s13148-024-01663-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/18/2024] [Indexed: 04/17/2024] Open
Abstract
BACKGROUND CSLCs(Cancer stem cell-like cells), which are central to tumorigenesis, are intrinsically influenced by epigenetic modifications. This study aimed to elucidate the underlying mechanism involving the DNMT1/miR-152-3p/SOS1 axis in regulating the self-renewal and tumor growth of LCSLCs (lung cancer stem-like cells). MATERIALS AND METHODS Target genes of miR-152-3p were predicted using TargetScan Human 8.0. Self-renewal and tumor growth of LCSLC were compared in suspension-cultured non-small cell lung cancer (NSCLC) cell lines H460 and A549 cell-derived globe cells. Functional effects of the DNMT1/miR-152-3p/SOS1 axis were assessed through gain-of-function experiments in vitro and in vivo. Additionally, luciferase reporter assays were employed to analyze the interaction among DNMT1, miR-152-3p, and SOS1. RESULTS Our findings highlight a negative interaction between DNMT1 and miR-152-3p, resulting in reduced miR-152-3p level. This, in turn, leads to the alleviation of the inhibitory effect of miR-152-3p on the target gene SOS1, ultimately activating SOS1 and playing an essential role in self-renewal and tumor growth of LCSLC. However, the alteration of SOS1 does not affect DNMT1/miR-152-3p regulation. Therefore, it is reasonable to infer that the DNMT1/miR-152-3p negative feedback loop critically sustains self-renewal and tumor growth of LCSLC through SOS1. CONCLUSIONS This study reveals a novel mechanism underpinning self-renewal and tumor growth of CSLC (cancer stem cell) in NSCLC and identifies potential therapeutic targets for NSCLC treatment.
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Affiliation(s)
- Qing Yuan
- Department of Preclinical Medicine, Medical College, Hunan Normal University, Changsha, 410013, China
- Key Laboratory of Study and Discover of Small Targeted Molecules of Hunan Province, Changsha, 410013, China
| | - Rubo Wang
- Department of Pathology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, China
| | - Xiang Li
- Department of Preclinical Medicine, Medical College, Hunan Normal University, Changsha, 410013, China
- Key Laboratory of Study and Discover of Small Targeted Molecules of Hunan Province, Changsha, 410013, China
| | - Fei Sun
- Department of Preclinical Medicine, Medical College, Hunan Normal University, Changsha, 410013, China
- Key Laboratory of Study and Discover of Small Targeted Molecules of Hunan Province, Changsha, 410013, China
| | - Jiazhi Lin
- Department of Gynaecology and Obstetrics, Shenshan Medical Center, Memorial Hospital of Sun Yat-sen University, Shanwei, 516500, Guangdong, China
| | - Zhimin Fu
- Department of Thoracic Surgery, The Tenth Affiliated Dongguan Hospital, Southern Medical University (Dongguan People's Hospital), Dongguan, 523000, China.
| | - Jiansong Zhang
- Department of Preclinical Medicine, Medical College, Hunan Normal University, Changsha, 410013, China.
- Key Laboratory of Study and Discover of Small Targeted Molecules of Hunan Province, Changsha, 410013, China.
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Kirtana R, Manna S, Patra SK. KDM5A noncanonically binds antagonists MLL1/2 to mediate gene regulation and promotes epithelial to mesenchymal transition. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2023; 1866:194986. [PMID: 37722486 DOI: 10.1016/j.bbagrm.2023.194986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023]
Abstract
Differential expression of genes involved in certain processes is a collaborative outcome of crosstalk between signalling molecules and epigenetic modifiers. In response to environmental stimulus, interplay between transcription factors and epigenetic modifiers together dictates the regulation of genes. MLLs and KDM5A are functionally antagonistic proteins, as one acts as a writer and the other erases the active chromatin mark, i.e., H3K4me3. KDM5A influences the process of EMT by binding to both epithelial and mesenchymal gene promoters. Through this work, we show that when bound to E-cadherin promoter, KDM5A acts as a classical repressor by demethylating H3K4me3, but on mesenchymal markers, it acts as a transcriptional activator by inhibiting the activity of HDACs and increasing H3K18ac. Further, through our chromatin immunoprecipitation experiments, we observed a co-occupancy of KDM5A with MLLs, we tested whether KDM5A might physically interact with MLLs and WDR5, and here we provide experimental evidence that KDM5A indeed interacts with MLLs and WDR5.
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Affiliation(s)
- R Kirtana
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Soumen Manna
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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Kar S, Niharika, Roy A, Patra SK. Overexpression of SOX2 Gene by Histone Modifications: SOX2 Enhances Human Prostate and Breast Cancer Progression by Prevention of Apoptosis and Enhancing Cell Proliferation. Oncology 2023; 101:591-608. [PMID: 37549026 DOI: 10.1159/000531195] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 05/02/2023] [Indexed: 08/09/2023]
Abstract
INTRODUCTION SOX2 plays a crucial role in tumor development, cancer stem cell maintenance, and cancer progression. Mechanisms of SOX2 gene regulation in human breast and prostate cancers are not established yet. METHODS SOX2 expression in prostate and breast cancer tissues and cell lines was determined by qRT-PCR, Western blot, and immunochemistry, followed by the investigation of pro-tumorigenic properties like cell proliferation, migration, and apoptosis by gene knockdown and treatment with epigenetic modulators and ChIP. RESULTS Prostate and breast cancer tissues showed very high expression of SOX2. All cancer cell lines DU145 and PC3 (prostate) and MCF7 and MDA-MB-231 (breast) exhibited high expression of SOX2. Inhibition of SOX2 drastically decreased cell proliferation and migration. Epigenetic modulators enhanced SOX2 gene expression in both cancer types. DNA methylation pattern in SOX2 promoter could not be appreciably counted for SOX2 overexpression. Activation of SOX2 gene promoter was due to very high deposition of H3K4me3 and H3K9acS10p and drastic decrease of H3K9me3 and H3K27me3. CONCLUSION Histone modification is crucial for the overexpression of SOX2 during tumor development and cancer progression. These findings show the avenue of co-targeting SOX2 and its active epigenetic modifier enzymes to effectively treat aggressive prostate and breast cancers.
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Affiliation(s)
- Swayamsiddha Kar
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, India
| | - Niharika
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, India
| | - Ankan Roy
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, India
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Manna S, Mishra J, Baral T, Kirtana R, Nandi P, Roy A, Chakraborty S, Niharika, Patra SK. Epigenetic signaling and crosstalk in regulation of gene expression and disease progression. Epigenomics 2023; 15:723-740. [PMID: 37661861 DOI: 10.2217/epi-2023-0235] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023] Open
Abstract
Chromatin modifications - including DNA methylation, modification of histones and recruitment of noncoding RNAs - are essential epigenetic events. Multiple sequential modifications converge into a complex epigenetic landscape. For example, promoter DNA methylation is recognized by MeCP2/methyl CpG binding domain proteins which further recruit SETDB1/SUV39 to attain a higher order chromatin structure by propagation of inactive epigenetic marks like H3K9me3. Many studies with new information on different epigenetic modifications and associated factors are available, but clear maps of interconnected pathways are also emerging. This review deals with the salient epigenetic crosstalk mechanisms that cells utilize for different cellular processes and how deregulation or aberrant gene expression leads to disease progression.
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Affiliation(s)
- Soumen Manna
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Jagdish Mishra
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Tirthankar Baral
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - R Kirtana
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Piyasa Nandi
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Ankan Roy
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Subhajit Chakraborty
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Niharika
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
| | - Samir K Patra
- Epigenetics & Cancer Research Laboratory, Biochemistry & Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha, 769008, India
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Ma L, Li C, Yin H, Huang J, Yu S, Zhao J, Tang Y, Yu M, Lin J, Ding L, Cui Q. The Mechanism of DNA Methylation and miRNA in Breast Cancer. Int J Mol Sci 2023; 24:9360. [PMID: 37298314 PMCID: PMC10253858 DOI: 10.3390/ijms24119360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/17/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Breast cancer is the most prevalent cancer in the world. Currently, the main treatments for breast cancer are radiotherapy, chemotherapy, targeted therapy and surgery. The treatment measures for breast cancer depend on the molecular subtype. Thus, the exploration of the underlying molecular mechanisms and therapeutic targets for breast cancer remains a hotspot in research. In breast cancer, a high level of expression of DNMTs is highly correlated with poor prognosis, that is, the abnormal methylation of tumor suppressor genes usually promotes tumorigenesis and progression. MiRNAs, as non-coding RNAs, have been identified to play key roles in breast cancer. The aberrant methylation of miRNAs could lead to drug resistance during the aforementioned treatment. Therefore, the regulation of miRNA methylation might serve as a therapeutic target in breast cancer. In this paper, we reviewed studies on the regulatory mechanisms of miRNA and DNA methylation in breast cancer from the last decade, focusing on the promoter region of tumor suppressor miRNAs methylated by DNMTs and the highly expressed oncogenic miRNAs inhibited by DNMTs or activating TETs.
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Affiliation(s)
- Lingyuan Ma
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Chenyu Li
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Hanlin Yin
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Jiashu Huang
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Shenghao Yu
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Jin Zhao
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Yongxu Tang
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Min Yu
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Jie Lin
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Lei Ding
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
| | - Qinghua Cui
- Lab of Biochemistry & Molecular Biology, School of Life Sciences, Yunnan University, Kunming 650091, China; (L.M.); (C.L.); (H.Y.); (J.H.); (S.Y.); (J.Z.); (Y.T.); (M.Y.); (J.L.)
- Yunnan Collaborative Innovation Center for Plateau Lake Ecology and Environmental Health, Kunming 650214, China
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Mafi A, Keshavarzmotamed A, Hedayati N, Boroujeni ZY, Reiter RJ, Dehmordi RM, Aarabi MH, Rezaee M, Asemi Z. Melatonin targeting non-coding RNAs in cancer: Focus on mechanisms and potential therapeutic targets. Eur J Pharmacol 2023; 950:175755. [PMID: 37119959 DOI: 10.1016/j.ejphar.2023.175755] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 05/01/2023]
Abstract
Despite, melatonin is mainly known as a regulatory factor for circadian rhythm, its notable role in other fundamental biological processes, such as redox homeostasis and programmed cell death, has been found. In this line, a growing body of evidence indicated that melatonin could apply an inhibitory effect on the tumorigenic processes. Hence, melatonin might be considered an efficient adjuvant agent for cancer treatment. Besides, the physiological and pathological functions of non-coding RNAs (ncRNAs) in various disease, particularly cancers, have been expanded over the past two decades. It is well-established that ncRNAs can modulate the gene expression at various levels, thereby, ncRNAs. can regulate the numerous biological processes, including cell proliferation, cell metabolism, apoptosis, and cell cycle. Recently, targeting the ncRNAs expression provides a novel insight in the therapeutic approaches for cancer treatment. Moreover, accumulating investigations have revealed that melatonin could impact the expression of different ncRNAs in a multiple disorders, including cancer. Therefore, in the precent study, we discuss the potential roles of melatonin in modulating the expression of ncRNAs and the related molecular pathways in different types of cancer. Also, we highlighted its importance in therapeutic application and translational medicine in cancer treatment.
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Affiliation(s)
- Alireza Mafi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran; Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
| | | | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran.
| | - Zahra Yeganeh Boroujeni
- School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health. Long School of Medicine, San Antonio, TX, USA.
| | - Rohollah Mousavi Dehmordi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Mohammad-Hossein Aarabi
- Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Malihe Rezaee
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Tehran Heart Center, Cardiovascular Diseases Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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Das L. Epigenetic alterations impede epithelial-mesenchymal transition by modulating centrosome amplification and Myc/RAS axis in triple negative breast cancer cells. Sci Rep 2023; 13:2458. [PMID: 36774386 PMCID: PMC9922331 DOI: 10.1038/s41598-023-29712-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 02/09/2023] [Indexed: 02/13/2023] Open
Abstract
Alterations in centrosome proteins may result in centrosome abnormalities such as disorganized spindles and centrosome amplification, leading to aneuploidy and genomic instability. Centrosomes exhibit unique epigenetic properties in which structural or positional information is propagated through somatic lineage by non-genetic pathways. Excessive centrosome amplification in breast cancer is accompanied by efficient clustering and loss of E-cadherin, indicating an important adaptive mechanism of cancer. This study sought to elucidate the effect of epigenetic alterations on centrosome amplification, epithelial-mesenchymal transition (EMT) and apoptosis in triple negative human breast adenocarcinoma derived MDA-MB-231 cell line. The results obtained here show that siRNA mediated silencing of DNMT1 and specific inhibition of HDAC1 & HDAC2 by Tricostatin A (TSA) synergistically inhibit cell proliferation through modulation of centrosome proteins γ-tubulin, TUBGCP2 and pericentrin. In addition, induction of apoptosis was observed by downregulation of Bcl2, upregulation of Bax and activation of PARP cleavage. Inhibition of EMT was confirmed through upregulation of E-cadherin and downregulation of N-cadherin and vimentin. Similarly, downregulation of Myc, RAS and CDK2, which plays important roles in proliferation and survival, was observed. Nuclear protein analysis revealed downregulation in the nuclear translocation of E2F1, which regulates centrosome amplification and metastasis in breast cancer. In conclusion, this study confirmed the role of epigenetic regulators in centrosome amplification and suggests that inhibition of DNA methylation and histone deacetylation-mediated chromatin remodelling synergistically disrupt EMT through modulation of centrosome amplification and Myc/RAS axis to potentiate apoptosis and attenuate cell proliferation in triple negative breast cancer cells.
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Affiliation(s)
- Laxmidhar Das
- Department of Biotechnology and Bioengineering, Institute of Advanced Research (IAR), The University for Innovation, Koba Institutional Area, Gandhinagar, Gujarat, 382426, India.
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MicroRNAs: A Link between Mammary Gland Development and Breast Cancer. Int J Mol Sci 2022; 23:ijms232415978. [PMID: 36555616 PMCID: PMC9786715 DOI: 10.3390/ijms232415978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Breast cancer is among the most common cancers in women, second to skin cancer. Mammary gland development can influence breast cancer development in later life. Processes such as proliferation, invasion, and migration during mammary gland development can often mirror processes found in breast cancer. MicroRNAs (miRNAs), small, non-coding RNAs, can repress post-transcriptional RNA expression and can regulate up to 80% of all genes. Expression of miRNAs play a key role in mammary gland development, and aberrant expression can initiate or promote breast cancer. Here, we review the role of miRNAs in mammary development and breast cancer, and potential parallel roles. A total of 32 miRNAs were found to be expressed in both mammary gland development and breast cancer. These miRNAs are involved in proliferation, metastasis, invasion, and apoptosis in both processes. Some miRNAs were found to have contradictory roles, possibly due to their ability to target many genes at once. Investigation of miRNAs and their role in mammary gland development may inform about their role in breast cancer. In particular, by studying miRNA in development, mechanisms and potential targets for breast cancer treatment may be elucidated.
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11
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Alvizi L, Brito LA, Kobayashi GS, Bischain B, da Silva CBF, Ramos SLG, Wang J, Passos-Bueno MR. m ir152 hypomethylation as a mechanism for non-syndromic cleft lip and palate. Epigenetics 2022; 17:2278-2295. [PMID: 36047706 PMCID: PMC9665146 DOI: 10.1080/15592294.2022.2115606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 08/06/2022] [Accepted: 08/17/2022] [Indexed: 11/03/2022] Open
Abstract
Non-syndromic cleft lip with or without cleft palate (NSCLP), the most common human craniofacial malformation, is a complex disorder given its genetic heterogeneity and multifactorial component revealed by genetic, epidemiological, and epigenetic findings. Epigenetic variations associated with NSCLP have been identified; however, functional investigation has been limited. Here, we combined a reanalysis of NSCLP methylome data with genetic analysis and used both in vitro and in vivo approaches to dissect the functional effects of epigenetic changes. We found a region in mir152 that is frequently hypomethylated in NSCLP cohorts (21-26%), leading to mir152 overexpression. mir152 overexpression in human neural crest cells led to downregulation of spliceosomal, ribosomal, and adherens junction genes. In vivo analysis using zebrafish embryos revealed that mir152 upregulation leads to craniofacial cartilage impairment. Also, we suggest that zebrafish embryonic hypoxia leads to mir152 upregulation combined with mir152 hypomethylation and also analogous palatal alterations. We therefore propose that mir152 hypomethylation, potentially induced by hypoxia in early development, is a novel and frequent predisposing factor to NSCLP.
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Affiliation(s)
- Lucas Alvizi
- Centro de Pesquisas sobre o Genoma Humano e Células Tronco, Universidade de São Paulo, Brasil
| | - Luciano Abreu Brito
- Centro de Pesquisas sobre o Genoma Humano e Células Tronco, Universidade de São Paulo, Brasil
| | | | - Bárbara Bischain
- Centro de Pesquisas sobre o Genoma Humano e Células Tronco, Universidade de São Paulo, Brasil
| | | | | | - Jaqueline Wang
- Centro de Pesquisas sobre o Genoma Humano e Células Tronco, Universidade de São Paulo, Brasil
| | - Maria Rita Passos-Bueno
- Centro de Pesquisas sobre o Genoma Humano e Células Tronco, Universidade de São Paulo, Brasil
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12
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Mohanta YK, Nayak D, Mishra AK, Chakrabartty I, Ray MK, Mohanta TK, Tayung K, Rajaganesh R, Vasanthakumaran M, Muthupandian S, Murugan K, Sharma G, Dahms HU, Hwang JS. Green Synthesis of Endolichenic Fungi Functionalized Silver Nanoparticles: The Role in Antimicrobial, Anti-Cancer, and Mosquitocidal Activities. Int J Mol Sci 2022; 23:ijms231810626. [PMID: 36142546 PMCID: PMC9502095 DOI: 10.3390/ijms231810626] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 11/23/2022] Open
Abstract
Green nanotechnology is currently a very crucial and indispensable technology for handling diverse problems regarding the living planet. The concoction of reactive oxygen species (ROS) and biologically synthesized silver nanoparticles (AgNPs) has opened new insights in cancer therapy. The current investigation caters to the concept of the involvement of a novel eco-friendly avenue to produce AgNPs employing the wild endolichenic fungus Talaromyces funiculosus. The synthesized Talaromyces funiculosus–AgNPs were evaluated with the aid of UV visible spectroscopy, dynamic light scattering (DLS), Fourier infrared spectroscopy (ATR-FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The synthesized Talaromyces funiculosus–AgNPs (TF-AgNPs) exhibited hemo-compatibility as evidenced by a hemolytic assay. Further, they were evaluated for their efficacy against foodborne pathogens Staphylococcus aureus, Streptococcus faecalis, Listeria innocua, and Micrococcus luteus and nosocomial Pseudomonas aeruginosa, Escherichia coli, Vibrio cholerae, and Bacillus subtilis bacterial strains. The synthesized TF-AgNPs displayed cytotoxicity in a dose-dependent manner against MDA-MB-231 breast carcinoma cells and eventually condensed the chromatin material observed through the Hoechst 33342 stain. Subsequent analysis using flow cytometry and fluorescence microscopy provided the inference of a possible role of intracellular ROS (OH−, O−, H2O2, and O2−) radicals in the destruction of mitochondria, DNA machinery, the nucleus, and overall damage of the cellular machinery of breast cancerous cells. The combined effect of predation by the cyclopoid copepod Mesocyclops aspericornis and TF-AgNPS for the larval management of dengue vectors were provided. A promising larval control was evident after the conjunction of both predatory organisms and bio-fabricated nanoparticles. Thus, this study provides a novel, cost-effective, extracellular approach of TF-AgNPs production with hemo-compatible, antioxidant, and antimicrobial efficacy against both human and foodborne pathogens with cytotoxicity (dose dependent) towards MDA-MB-231 breast carcinoma.
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Affiliation(s)
- Yugal Kishore Mohanta
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi 793101, Meghalaya, India
| | - Debasis Nayak
- Department of Wildlife and Biodiversity Conservation, Maharaja Sriram Chandra Bhanj Deo University, Baripada 757003, Odisha, India
| | | | - Ishani Chakrabartty
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi 793101, Meghalaya, India
| | - Manjit Kumar Ray
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi 793101, Meghalaya, India
| | - Tapan Kumar Mohanta
- Natural and Medical Sciences Research Centre, University of Nizwa, Nizwa 616, Oman
| | - Kumananda Tayung
- Department of Botany, Gauhati University, Jalukbari, Guwahati 781014, Assam, India
| | | | | | - Saravanan Muthupandian
- AMR and Nanotherapeutics Laboratory, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Chennai, India
| | - Kadarkarai Murugan
- Department of Zoology, Bharathiar University, Coimbatore 641046, Tamil Nadu, India
| | - Gouridutta Sharma
- Department of Applied Biology, School of Biological Sciences, University of Science and Technology Meghalaya, Ri-Bhoi 793101, Meghalaya, India
| | - Hans-Uwe Dahms
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University (KMU), Kaohsiung 80708, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University (KMU), Kaohsiung 80708, Taiwan
- Correspondence: (H.-U.D.); (J.-S.H.)
| | - Jiang-Shiou Hwang
- Institute of Marine Biology, National Taiwan Ocean University, Keelung 20224, Taiwan
- Center of Excellence for Ocean Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan
- Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
- Correspondence: (H.-U.D.); (J.-S.H.)
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13
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Wu HJ, Chu PY. Epigenetic Regulation of Breast Cancer Stem Cells Contributing to Carcinogenesis and Therapeutic Implications. Int J Mol Sci 2021; 22:ijms22158113. [PMID: 34360879 PMCID: PMC8348144 DOI: 10.3390/ijms22158113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 12/15/2022] Open
Abstract
Globally, breast cancer has remained the most commonly diagnosed cancer and the leading cause of cancer death among women. Breast cancer is a highly heterogeneous and phenotypically diverse group of diseases, which require different selection of treatments. Breast cancer stem cells (BCSCs), a small subset of cancer cells with stem cell-like properties, play essential roles in breast cancer progression, recurrence, metastasis, chemoresistance and treatments. Epigenetics is defined as inheritable changes in gene expression without alteration in DNA sequence. Epigenetic regulation includes DNA methylation and demethylation, as well as histone modifications. Aberrant epigenetic regulation results in carcinogenesis. In this review, the mechanism of epigenetic regulation involved in carcinogenesis, therapeutic resistance and metastasis of BCSCs will be discussed, and finally, the therapies targeting these biomarkers will be presented.
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Affiliation(s)
- Hsing-Ju Wu
- Department of Biology, National Changhua University of Education, Changhua 500, Taiwan;
- Research Assistant Center, Show Chwan Memorial Hospital, Changhua 500, Taiwan
- Department of Medical Research, Chang Bing Show Chwan Memorial Hospital, Lukang Town, Changhua 505, Taiwan
| | - Pei-Yi Chu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
- Department of Pathology, Show Chwan Memorial Hospital, Changhua 500, Taiwan
- Department of Health Food, Chung Chou University of Science and Technology, Changhua 510, Taiwan
- National Institute of Cancer Research, National Health Research Institutes, Tainan 704, Taiwan
- Correspondence: ; Tel.: +886-975611855; Fax: +886-47227116
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Li H, Li HH, Chen Q, Wang YY, Fan CC, Duan YY, Huang Y, Zhang HM, Li JP, Zhang XY, Xiang Y, Gu CJ, Wang L, Liao XH, Zhang TC. refMiR 142 5p inhibits cell invasion and migration by targeting DNMT1 in breast cancer. Oncol Res 2021; 28:885-897. [PMID: 34321149 PMCID: PMC8790130 DOI: 10.3727/096504021x16274672547967] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Abnormal cell proliferation caused by abnormal transcription regulation mechanismseems to be one of the reasons for the progression of breast cancer and also thepathological basis. MicroRNA 142 5p (miR 142 5p) is a low expressed miRNA inbreast cancer. T he role of MKL1's regulation of DNMT1 in breast cancer cellproliferation and migration is still unclear. MKL 1 (myocardi n related transcriptionfactor A) can bind to the conserved cis regulatory element CC (A/T) 6GG (called CarGbox) in the promoter to re gulate the transcription of miR 142 5p. The expression ofmiR 142 5p and MKL 1 are positively correlated. In addition, it has been proved thatDNMT1 is the target of miR 142 5p, which inhibits the expression of DNMT1 bytargeting the 3'UTR of DNMT1, thereby forming a feedback loop and inhibiting themigration and proliferation of breast cancer. Our data provide important and novelinsights into the MKL 1/miR 142 5p/DNMT1/maspin signaling pathway, and maybecome a new idea for breast cancer diagnosis, treatment and prognosis.
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15
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miR-210 and miR-152 as Biomarkers by Liquid Biopsy in Invasive Ductal Carcinoma. J Pers Med 2021; 11:jpm11010031. [PMID: 33419057 PMCID: PMC7825421 DOI: 10.3390/jpm11010031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 12/27/2022] Open
Abstract
Detecting circulating microRNAs (miRNAs; miRs) by means of liquid biopsy is an important tool for the early diagnosis and prognosis of breast cancer (BC). We aimed to identify and validate miR-210 and miR-152 as non-invasive circulating biomarkers, for the diagnosis and staging of BC patients, confirming their involvement in tumor angiogenesis. Methods: RT-qPCR was performed and MiRNA expression analysis was obtained from plasma and fragments of BC and benign breast condition (BBC) women patients, plus healthy subjects. Additionally, the immunohistochemistry technique was carried out to analyze the expression of target proteins. Results: Tumor fragments showed increased expression of oncomiR-210 and decreased expression of miR-152 tumoral suppressor. Both miRNAs were increased in plasma samples from BC patients. The receiver operating characteristic (ROC) curve analysis revealed that only the expression of oncomiR-210 in tissue samples and only the expression of the miR-152 suppressor in plasma have the appropriate sensitivity and specificity for use as differential biomarkers between early/intermediate and advanced stages of BC patients. In addition, there was an increase in the expression of hypoxia-inducible factor 1-alpha (HIF-1α), insulin-like growth factor 1 receptor (IGF-1R), and vascular endothelial growth factor (VEGF) in BC patients. On the contrary, a decrease in Von Hippel–Lindau (VHL) protein expression was observed. Conclusions: This study showed that increased levels of miR-210 and decreased levels of miR152, in addition to the expressions of their target proteins, could indicate, respectively, the oncogenic and tumor suppressive role of these miRNAs in fragments. Both miRNAs are potential diagnostic biomarkers for BC by liquid biopsy. In addition, miR-152 proved to be a promising biomarker for disease staging.
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16
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Patra SK. Emerging histone glutamine modifications mediated gene expression in cell differentiation and the VTA reward pathway. Gene 2020; 768:145323. [PMID: 33221535 DOI: 10.1016/j.gene.2020.145323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 10/21/2020] [Accepted: 11/16/2020] [Indexed: 12/17/2022]
Abstract
Gene expression is the key to cellular functions and homeostasis. Histone modifications regulate chromatin dynamics and gene expression. Neuronal cell functions largely depend on fluxes of neurotransmitters for activation of chromatin and gene expression. New studies by Lepack et al. and Farrelly et al. recently demonstrated how tissue transglutaminase 2 (TGM2) mediated histone glutamine modifications, either dopaminylation in the dopaminergic reward pathway or serotonylation in the context of cellular differentiation and signaling regulate gene expression and decipher striking differences from their known functions. This opens new avenues of research in the field of epigenetics in general and neuroepigenetics as special; and to find out the enzymes responsible for the reversible reaction of histone de-dopaminylation and de-serotonylation.
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Affiliation(s)
- Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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17
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Zhuang J, Huo Q, Yang F, Xie N. Perspectives on the Role of Histone Modification in Breast Cancer Progression and the Advanced Technological Tools to Study Epigenetic Determinants of Metastasis. Front Genet 2020; 11:603552. [PMID: 33193750 PMCID: PMC7658393 DOI: 10.3389/fgene.2020.603552] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 10/09/2020] [Indexed: 12/11/2022] Open
Abstract
Metastasis is a complex process that involved in various genetic and epigenetic alterations during the progression of breast cancer. Recent evidences have indicated that the mutation in the genome sequence may not be the key factor for increasing metastatic potential. Epigenetic changes were revealed to be important for metastatic phenotypes transition with the development in understanding the epigenetic basis of breast cancer. Herein, we aim to present the potential epigenetic drivers that induce dysregulation of genes related to breast tumor growth and metastasis, with a particular focus on histone modification including histone acetylation and methylation. The pervasive role of major histone modification enzymes in cancer metastasis such as histone acetyltransferases (HAT), histone deacetylases (HDACs), DNA methyltransferases (DNMTs), and so on are demonstrated and further discussed. In addition, we summarize the recent advances of next-generation sequencing technologies and microfluidic-based devices for enhancing the study of epigenomic landscapes of breast cancer. This feature also introduces several important biotechnologists for identifying robust epigenetic biomarkers and enabling the translation of epigenetic analyses to the clinic. In summary, a comprehensive understanding of epigenetic determinants in metastasis will offer new insights of breast cancer progression and can be achieved in the near future with the development of innovative epigenomic mapping tools.
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Affiliation(s)
- Jialang Zhuang
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China.,Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Qin Huo
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Fan Yang
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Ni Xie
- Biobank, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China
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18
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Singh SK, Bahal R, Rasmussen TP. Evidence that miR-152-3p is a positive regulator of SETDB1-mediated H3K9 histone methylation and serves as a toggle between histone and DNA methylation. Exp Cell Res 2020; 395:112216. [PMID: 32768498 DOI: 10.1016/j.yexcr.2020.112216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 07/27/2020] [Accepted: 08/01/2020] [Indexed: 10/23/2022]
Abstract
SETDB1 is a histone methyltransferase that converts H3K9me2 to H3K9me3. SETDB1 activity and H3K9me3 are crucial for the formation of obligately silenced heterochromatin such as that of centromeres. Here we show that a microRNA, miR-152-3p, is involved in the regulation of SETDB1 protein levels, but surprisingly, miR-152-3p plays a positive regulatory role for SETDB1 expression. Inhibition of miR-152-3p by anti-miR treatment resulted in a robust reduction in SETDB1 protein levels, though SETDB1 mRNA levels were unaffected. This was also accompanied by a blockade of the biochemical pathway proceeding from H3K9me2 to H3K9me3 as evidenced by quantitative nucleosome ELISA assays that showed that H3K9me2 accumulates in cells treated with an anti-miR that targets miR-152-3p. In addition, the action of a miR-152-3p mimic increased flux of the reaction leading to H3K9me3. We also performed site-directed mutagenesis of three predicted miR-152-3p target recognition sequences to yield three precise deletions. Deletion of one of the three sites recapitulated the positive regulatory aspect of the action of miR-152-3p upon SETDB1 expression in a luciferase reporter assay. Previous studies have shown that miR-152-3p negatively regulates DNMT1, the sole maintenance DNA methyltransferase which is required for levels of 5-methylcytosine levels within DNA. Our results shown that miR-152-3p positively regulates the production of H3K9me3 by regulating the production of SETDB1. Therefore, our findings provide strong evidence that miR-152-3p can serve as a toggle switch that regulates the balance between DNA methylation and H3K9 histone methylation in constitutive heterochromatin.
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Affiliation(s)
- Supriya K Singh
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, 06269, USA
| | - Raman Bahal
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, 06269, USA
| | - Theodore P Rasmussen
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT, 06269, USA; Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, 06269, USA; University of Connecticut Stem Cell Institute, Storrs/Farmington, CT, USA.
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19
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Wong JS, Cheah YK. Potential miRNAs for miRNA-Based Therapeutics in Breast Cancer. Noncoding RNA 2020; 6:E29. [PMID: 32668603 PMCID: PMC7549352 DOI: 10.3390/ncrna6030029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 07/04/2020] [Accepted: 07/07/2020] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are small non-coding RNAs that can post-transcriptionally regulate the genes involved in critical cellular processes. The aberrant expressions of oncogenic or tumor suppressor miRNAs have been associated with cancer progression and malignancies. This resulted in the dysregulation of signaling pathways involved in cell proliferation, apoptosis and survival, metastasis, cancer recurrence and chemoresistance. In this review, we will first (i) provide an overview of the miRNA biogenesis pathways, and in vitro and in vivo models for research, (ii) summarize the most recent findings on the roles of microRNAs (miRNAs) that could potentially be used for miRNA-based therapy in the treatment of breast cancer and (iii) discuss the various therapeutic applications.
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Affiliation(s)
- Jun Sheng Wong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Yoke Kqueen Cheah
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia
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20
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Wong KK. DNMT1 as a therapeutic target in pancreatic cancer: mechanisms and clinical implications. Cell Oncol (Dordr) 2020; 43:779-792. [PMID: 32504382 DOI: 10.1007/s13402-020-00526-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 04/09/2020] [Accepted: 04/18/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pancreatic cancer or pancreatic ductal adenocarcinoma (PDAC) is one of the most devastating cancer types with a 5-year survival rate of only 9%. PDAC is one of the leading causes of cancer-related deaths in both genders. Epigenetic alterations may lead to the suppression of tumor suppressor genes, and DNA methylation is a predominant epigenetic modification. DNA methyltransferase 1 (DNMT1) is required for maintaining patterns of DNA methylation during cellular replication. Accumulating evidence has implicated the oncogenic roles of DNMT1 in various malignancies including PDACs. CONCLUSIONS Herein, the expression profiles, oncogenic roles, regulators and inhibitors of DNMT1 in PDACs are presented and discussed. DNMT1 is overexpressed in PDAC cases compared with non-cancerous pancreatic ducts, and its expression gradually increases from pre-neoplastic lesions to PDACs. DNMT1 plays oncogenic roles in suppressing PDAC cell differentiation and in promoting their proliferation, migration and invasion, as well as in induction of the self-renewal capacity of PDAC cancer stem cells. These effects are achieved via promoter hypermethylation of tumor suppressor genes, including cyclin-dependent kinase inhibitors (e.g., p14, p15, p16, p21 and p27), suppressors of epithelial-mesenchymal transition (e.g., E-cadherin) and tumor suppressor miRNAs (e.g., miR-148a, miR-152 and miR-17-92 cluster). Pre-clinical investigations have shown the potency of novel non-nucleoside DNMT1 inhibitors against PDAC cells. Finally, phase I/II clinical trials of DNMT1 inhibitors (azacitidine, decitabine and guadecitabine) in PDAC patients are currently underway, where these inhibitors have the potential to sensitize PDACs to chemotherapy and immune checkpoint blockade therapy.
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Affiliation(s)
- Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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21
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Dissecting miRNA facilitated physiology and function in human breast cancer for therapeutic intervention. Semin Cancer Biol 2020; 72:46-64. [PMID: 32497683 DOI: 10.1016/j.semcancer.2020.05.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/17/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
Abstract
MicroRNAs (miRNAs) are key epigenomic regulators of biological processes in animals and plants. These small non coding RNAs form a complex networks that regulate cellular function and development. MiRNAs prevent translation by either inactivation or inducing degradation of mRNA, a major concern in post-transcriptional gene regulation. Aberrant regulation of gene expression by miRNAs is frequently observed in cancer. Overexpression of various 'oncomiRs' and silencing of tumor suppressor miRNAs are associated with various types of human cancers, although overall downregulation of miRNA expression is reported as a hallmark of cancer. Modulations of the total pool of cellular miRNA by alteration in genetic and epigenetic factors associated with the biogenesis of miRNA machinery. It also depends on the availability of cellular miRNAs from its store in the organelles which affect tumor development and cancer progression. Here, we have dissected the roles and pathways of various miRNAs during normal cellular and molecular functions as well as during breast cancer progression. Recent research works and prevailing views implicate that there are two major types of miRNAs; (i) intracellular miRNAs and (ii) extracellular miRNAs. Concept, that the functions of intracellular miRNAs are driven by cellular organelles in mammalian cells. Extracellular miRNAs function in cell-cell communication in extracellular spaces and distance cells through circulation. A detailed understanding of organelle driven miRNA function and the precise role of extracellular miRNAs, pre- and post-therapeutic implications of miRNAs in this scenario would open several avenues for further understanding of miRNA function and can be better exploited for the treatment of breast cancers.
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22
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Wong KK. DNMT1: A key drug target in triple-negative breast cancer. Semin Cancer Biol 2020; 72:198-213. [PMID: 32461152 DOI: 10.1016/j.semcancer.2020.05.010] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/04/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer. Altered epigenetics regulation including DNA hypermethylation by DNA methyltransferase 1 (DNMT1) has been implicated as one of the causes of TNBC tumorigenesis. In this review, the oncogenic functions rendered by DNMT1 in TNBCs, and DNMT1 inhibitors targeting TNBC cells are presented and discussed. In summary, DNMT1 expression is associated with poor breast cancer survival, and it is overexpressed in TNBC subtype. The oncogenic roles of DNMT1 in TNBCs include: (1) Repression of estrogen receptor (ER) expression; (2) Promotion of epithelial-mesenchymal transition (EMT) required for metastasis; (3) Induces cellular autophagy and; (4) Promotes the growth of cancer stem cells in TNBCs. DNMT1 confers these phenotypes by hypermethylating the promoter regions of ER, multiple tumor suppressor genes, microRNAs and epithelial markers involved in suppressing EMT. DNMT1 inhibitors exert anti-tumorigenic effects against TNBC cells. This includes the hypomethylating agents azacitidine, decitabine and guadecitabine that might sensitize TNBC patients to immune checkpoint blockade therapy. DNMT1 represents an epigenetic target for TNBC cells destruction as well as to derail their metastatic and aggressive phenotypes.
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Affiliation(s)
- Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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23
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Zeisel SH. Precision (Personalized) Nutrition: Understanding Metabolic Heterogeneity. Annu Rev Food Sci Technol 2020; 11:71-92. [DOI: 10.1146/annurev-food-032519-051736] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
People differ in their requirements for and responses to nutrients and bioactive molecules in the diet. Many inputs contribute to metabolic heterogeneity (including variations in genetics, epigenetics, microbiome, lifestyle, diet intake, and environmental exposure). Precision nutrition is not about developing unique prescriptions for individual people but rather about stratifying people into different subgroups of the population on the basis of biomarkers of the above-listed sources of metabolic variation and then using this stratification to better estimate the different subgroups’ dietary requirements, thereby enabling better dietary recommendations and interventions. The hope is that we will be able to subcategorize people into ever-smaller groups that can be targeted in terms of recommendations, but we will never achieve this at the individual level, thus, the choice of precision nutrition rather than personalized nutrition to designate this new field. This review focuses mainly on genetically related sources of metabolic heterogeneity and identifies challenges that need to be overcome to achieve a full understanding of the complex interactions between the many sources of metabolic heterogeneity that make people differ from one another in their requirements for and responses to foods. It also discusses the commercial applications of precision nutrition.
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Affiliation(s)
- Steven H. Zeisel
- Nutrition Research Institute, Department of Nutrition, University of North Carolina, Kannapolis, North Carolina 28081, USA
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Dastmalchi N, Safaralizadeh R, Baradaran B, Hosseinpourfeizi M, Baghbanzadeh A. An update review of deregulated tumor suppressive microRNAs and their contribution in various molecular subtypes of breast cancer. Gene 2019; 729:144301. [PMID: 31884105 DOI: 10.1016/j.gene.2019.144301] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/10/2019] [Accepted: 12/17/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Breast cancer (BC) is histologically classified into hormone-receptor+ (ER+, PR + ), human epidermal growth factor receptor-2+ (Her2 + ), and triple-negative breast cancer (TNBC) types. The important contribution of tumor-suppressive (TS) microRNAs (miRs) in BC development and treatment have been well-acknowledged in the literature. OBJECTIVE The present review focused on the contribution of recently examined TS miRs in the progression and treatment of various histological subtypes of BC. RESULTS In summary, various miRs have tumor-suppressive roles in BC, so that their aberrant expression leads to the abnormality in the cellular processes such as enhanced cell growth, decreased apoptosis, cell migration and metastasis, and decreased sensitivity to chemotherapy through deregulated expression of oncogene targets of TS miRs. CONCLUSION TS miRs could be regarded as a proper molecular target for target therapy of BC. However, further in vitro and in vivo investigations are required to confirm the exact molecular functions of TS miRs in BC cells to offer more efficient targeted therapies.
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Affiliation(s)
- Narges Dastmalchi
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran; Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Reza Safaralizadeh
- Department of Animal Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Amir Baghbanzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Pradhan N, Parbin S, Kausar C, Kar S, Mawatwal S, Das L, Deb M, Sengupta D, Dhiman R, Patra SK. Paederia foetida induces anticancer activity by modulating chromatin modification enzymes and altering pro-inflammatory cytokine gene expression in human prostate cancer cells. Food Chem Toxicol 2019; 130:161-173. [DOI: 10.1016/j.fct.2019.05.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/03/2019] [Accepted: 05/10/2019] [Indexed: 02/07/2023]
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Pradhan N, Parbin S, Kar S, Das L, Kirtana R, Suma Seshadri G, Sengupta D, Deb M, Kausar C, Patra SK. Epigenetic silencing of genes enhanced by collective role of reactive oxygen species and MAPK signaling downstream ERK/Snail axis: Ectopic application of hydrogen peroxide repress CDH1 gene by enhanced DNA methyltransferase activity in human breast cancer. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1651-1665. [DOI: 10.1016/j.bbadis.2019.04.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 12/22/2022]
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Sengupta D, Deb M, Kar S, Parbin S, Pradhan N, Patra SK. miR-193a targets MLL1 mRNA and drastically decreases MLL1 protein production: Ectopic expression of the miRNA aberrantly lowers H3K4me3 content of the chromatin and hampers cell proliferation and viability. Gene 2019; 705:22-35. [PMID: 31005612 DOI: 10.1016/j.gene.2019.04.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 04/15/2019] [Accepted: 04/17/2019] [Indexed: 02/08/2023]
Abstract
Mixed-lineage leukaemia 1 (MLL1) enzyme plays major role in regulating genes associated with vertebrate development. Cell physiology and homeostasis is regulated by microRNAs in diverse microenvironment. In this investigation we have identified conserved miR-193a target sites within the 3'-UTR of MLL1 gene transcript. Utilizing wild type and mutated 3'-UTR constructs and luciferase reporter assays we have clearly demonstrated that miR-193a directly targets the 3'-UTR region of the MLL1 mRNA. Ectopic expression of miR-193a modulated global H3K4 mono-, di- and tri-methylation levels and affects the expression of CAV1, a gene which is specifically modulated by H3K4me3. To determine the implications of this in vitro finding in aberrant physiological conditions we analyzed prostate cancer tissue samples. In this context miR-193a RNA was undetectable and MLL1 was highly expressed with concomitantly high levels of H3K4me, H3K4me2, and H3K4me3 enrichment in the promoters of MLL1 responsive genes. Finally, we showed that prolonged ectopic expression of miR-193a inhibits growth and cell migration, and induces apoptosis. Thus, while our study unveils amplitude of the epigenome, including miRnome it establishes that; (i) miR-193a directly target MLL1 mRNA, (ii) miR-193a impair MLL1 protein production, (iii) miR-193a reduces the overall methylation marks of the genome.
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Affiliation(s)
- Dipta Sengupta
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Moonmoon Deb
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Swayamsiddha Kar
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sabnam Parbin
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Nibedita Pradhan
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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Zeisel SH. A Conceptual Framework for Studying and Investing in Precision Nutrition. Front Genet 2019; 10:200. [PMID: 30936893 PMCID: PMC6431609 DOI: 10.3389/fgene.2019.00200] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 02/25/2019] [Indexed: 12/15/2022] Open
Abstract
Nutrients and food-derived bioactive molecules must transit complex metabolic pathways, and these pathways vary between people. Metabolic heterogeneity is caused by genetic variation, epigenetic variation, differences in microbiome composition and function, lifestyle differences and by variation in environmental exposures. This review discusses a number of these sources of metabolic heterogeneity and presents some of the research investments that will be needed to make applications of precision nutrition practical.
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Affiliation(s)
- Steven H Zeisel
- Nutrition Research Institute, The University of North Carolina at Chapel Hill, Kannapolis, NC, United States
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Parbin S, Pradhan N, Das L, Saha P, Deb M, Sengupta D, Patra SK. DNA methylation regulates Microtubule-associated tumor suppressor 1 in human non-small cell lung carcinoma. Exp Cell Res 2018; 374:323-332. [PMID: 30528566 DOI: 10.1016/j.yexcr.2018.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 02/08/2023]
Abstract
Microtubule associated tumor suppressor 1 (MTUS1) has been recognized as a tumor suppressor gene in multiple cancers. However, the molecular mechanisms underlying the regulation of MTUS1 are yet to be investigated. This study aimed to clarify the significance of DNA methylation in silencing MTUS1 expression. We report that MTUS1 acts as tumor suppressor in non-small cell lung carcinoma (NSCLC). Analysis of in silico database and subsequent knockdown of DNMT1 suggested an inverse correlation between DNMT1 and MTUS1 function. Interestingly, increased methylation at MTUS1 promoter is associated with low expression of MTUS1. Treatment with DNA methyltransferases (DNMTs) inhibitor, 5-aza-2'-deoxycytidine (AZA) leads to both reduced promoter methylation accompanied with enrichment of H3K9Ac and enhanced MTUS1 expression. Remarkably, knockdown of MTUS1 showed increased proliferation and migration of NSCLC cells in contrast to diminished proliferation and migration, upon treatment with AZA. We concluded that low expression of MTUS1 correlates to DNA methylation and histone deacetylation in human NSCLC.
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Affiliation(s)
- Sabnam Parbin
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Nibedita Pradhan
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Laxmidhar Das
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Priyanka Saha
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Moonmoon Deb
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Dipta Sengupta
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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Wang QM, Lian GY, Song Y, Peng ZD, Xu SH, Gong Y. Downregulation of miR-152 contributes to DNMT1-mediated silencing of SOCS3/SHP-1 in non-Hodgkin lymphoma. Cancer Gene Ther 2018; 26:195-207. [PMID: 30470842 DOI: 10.1038/s41417-018-0057-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 08/30/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022]
Abstract
Understanding the molecular mechanisms for the development of non-Hodgkin lymphoma (NHL) will improve our ability to cure the patients. qRT-PCR was applied for the examination of the efficiency of shRNA for DNMT1, the expression of suppressor genes, miRNA-152. The MTT analysis, cell cycle analysis, clonal formation, and apoptotic analysis were used to examine the functions of DNMT1 and miR-152 in lymphoma cells. Methylation-specific polymerase chain reaction (MSP) was used to examine the methylation of tumor suppressor genes. The dual luciferase assay and western blot were used to validate if DNMT1 is the target of miR-152. For the in vivo experiments, the lymphoma cells were injected into the nude mice for quantification of the tumor growth after transfection of miR-152 mimics. Knockdown of DNMT1 by shRNA (sh-DNMT1) in OCI-Ly10 and Granta-159 cells significantly upregulated the expression of tumor suppressor genes (SOCS3, BCL2L10, p16, p14, and SHP-1) via decreasing their methylation level. At the cellular level, we found sh-DNMT1 inhibited the proliferation, clonal formation and cell cycle progression and induced the cell apoptosis of lymphoma cells. Furthermore, we found miR-152 can downregulates the expression of DNMT1 via directly targeting the gene. Overexpression of miR-152 also increased the expression of tumor suppressor genes SOCS3 and SHP-1. And miR-152 also can inhibit the cell proliferation and induce the cell apoptosis. Moreover, we found overexpression of miR-152 significantly repressed the tumor growth with decreased DNMT1 expression and increased expression of tumor suppressor genes in vivo. Our study demonstrates that miR-152 can inhibit lymphoma growth via suppressing DNMT1-mediated silencing of SOCS3 and SHP-1. These data demonstrate a new mechanism for the development of NHL and this may provide a new therapeutic target for NHL.
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Affiliation(s)
- Qing-Ming Wang
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
| | - Guang-Yu Lian
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yuan Song
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Zhi-Da Peng
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Sheng-Hua Xu
- Department of Hematology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yi Gong
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
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Rolph DN, Deb M, Kanji S, Greene CJ, Das M, Joseph M, Aggarwal R, Leblebicioglu B, Das H. Ferutinin directs dental pulp-derived stem cells towards the osteogenic lineage by epigenetically regulating canonical Wnt signaling. Biochim Biophys Acta Mol Basis Dis 2018; 1866:165314. [PMID: 30412793 DOI: 10.1016/j.bbadis.2018.10.032] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/15/2018] [Accepted: 10/26/2018] [Indexed: 01/02/2023]
Abstract
Osteoporosis is a silent systemic disease that causes bone deterioration, and affects over 10 million people in the US alone. This study was undertaken to develop a potential stem cell therapy for osteoporosis. We have isolated and expanded human dental pulp-derived stem cells (DPSCs), characterized them, and confirmed their multipotential differentiation abilities. Stem cells often remain quiescent and require activation to differentiate and function. Herein, we show that ferutinin activates DPSCs by modulating the Wnt/β-catenin signaling pathway and key osteoblast-secreted proteins osteocalcin and collagen 1A1 both mRNA and protein levels. To confirm that ferutinin modulates the Wnt pathway, we inhibited glycogen synthase kinase 3 (GSK3) and found that protein expression patterns were similar to those found in ferutinin-treated DPSCs. To evaluate the role of ferutinin in epigenetic regulation of canonical Wnt signaling, the pathway molecules Wnt3a and Dvl3 were analyzed using chromatin immunoprecipitation (ChIP)-quantitative PCR approaches. We confirmed that active marks of both H3K9 acetylation and H3K4 trimethylation were significantly enhanced in the promoter sites of the WNT3A and DVL3 genes in DPSCs after addition of ferutinin. These data provide evidence that ferutinin activates and promotes osteogenic differentiation of DPSCs, and could be used as an inducer as a potentially effective stem cell therapy for osteoporosis.
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Affiliation(s)
- Daniela N Rolph
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Moonmoon Deb
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Suman Kanji
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Carl J Greene
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Manjusri Das
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, USA
| | - Matthew Joseph
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, USA
| | - Reeva Aggarwal
- Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, USA
| | - Binnaz Leblebicioglu
- Division of Periodontology, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Hiranmoy Das
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA; Department of Internal Medicine, Wexner Medical Center at The Ohio State University, Columbus, OH, USA.
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Melatonin restrains angiogenic factors in triple-negative breast cancer by targeting miR-152-3p: In vivo and in vitro studies. Life Sci 2018; 208:131-138. [PMID: 29990486 DOI: 10.1016/j.lfs.2018.07.012] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Revised: 06/21/2018] [Accepted: 07/06/2018] [Indexed: 12/22/2022]
Abstract
AIMS Breast cancer represents the second most prevalent tumor-related cause of death among women. Although studies have already been published regarding the association between breast tumors and miRNAs, this field remains unclear. MicroRNAs (miRNAs) are defined as non-coding RNA molecules, and are known to be involved in cell pathways through the regulation of gene expression. Melatonin can regulate miRNAs and genes related with angiogenesis. This hormone is produced naturally by the pineal gland and presents several antitumor effects. The aim of this study was to understand the action of melatonin in the regulation of miRNA-152-3p in vivo and in vitro. MAIN METHODS In order to standardize the melatonin treatment in the MDA-MB-468 cells, we carried out the cell viability assay at different concentrations. PCR Array plates were used to identify the differentiated expression of miRNAs after the treatment with melatonin. The relative quantification of the target gene expression (IGF-IR, HIF-1α and VEGF) was performed by real-time PCR. For the tumor development, MDA-MB-468 cells were implanted in female BALB/c mice, and treated or not treated with melatonin. Moreover, the quantification of the target genes protein expression was performed by immunocytochemistry and immunohistochemistry. KEY FINDINGS Relative quantification shows that the melatonin treatment increases the gene expression of miR-152-3p and the target genes, and decreased protein levels of the genes both in vitro and in vivo. SIGNIFICANCE Our results confirm the action of melatonin on the miR-152-3p regulation known to be involved in the progression of breast cancer.
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Loginov VI, Filippova EA, Kurevlev SV, Fridman MV, Burdennyy AM, Braga EA. Suppressive and Hypermethylated MicroRNAs in the Pathogenesis of Breast Cancer. RUSS J GENET+ 2018. [DOI: 10.1134/s1022795418070086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Lu ZW, Du MY, Qian LX, Zhang N, Gu JJ, Ding K, Wu J, Zhu HM, He X, Yin L. MiR-152 functioning as a tumor suppressor that interacts with DNMT1 in nasopharyngeal carcinoma. Onco Targets Ther 2018; 11:1733-1741. [PMID: 29628766 PMCID: PMC5877490 DOI: 10.2147/ott.s154464] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background In recent years, miR-152 has been dysregulated in a variety of tumors and used as a tumor suppressor. Nevertheless, its role in nasopharyngeal carcinoma (NPC) remains unidentified. Materials and methods Real-time quantitative PCR (polymerase chain reaction) was performed to analyze the expression of miR-152 in NPC cell lines. MiR-152 expression profiles in NPC tissues were obtained from Gene Expression Omnibus (GEO GSE36682). The effect of miR-152 on the invasion and proliferation of NPC cells was determined through cell invasion, wound healing, and cell viability assays. Apoptosis was examined by flow cytometry, and Western blot was performed to measure expression of the target gene. Pyrosequencing was used to detect the methylation level of NPC cells. Results In this study, miR-152 was downregulated in the NPC tissues and cell lines. When miR-152 was enhanced, the invasion and migration of NPC cells were inhibited. However, miR-152 had no effect on the proliferation of NPC cells. Luciferase reporter gene analysis was performed, and the results showed that DNMT1 (DNA (cytosine-5)-methyltransferase 1) is a direct target of miR-152 in NPC cells. DNMT1 downregulation and miR-152 overexpression both reversed the effects of miR-152 inhibition on the NPC cells. In addition, miR-152 expression increased as a result of the inhibition of the methylation level of miR-152 when DNMT1 expression was downregulated. Conclusion The overexpression of miR-152 inhibited the migration and invasion of NPC cells by targeting DNMT1. Furthermore, DNMT1 regulated miR-152 expression through DNA methylation. Overall, the novel miR-152-DNMT1 regulatory circuit may provide better understanding of the pathogenesis of NPC and new epigenetic therapeutic target in NPC.
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Affiliation(s)
- Zhi-Wei Lu
- The Fourth Clinical School of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Ming-Yu Du
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Lu-Xi Qian
- The Fourth Clinical School of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Nan Zhang
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Jia-Jia Gu
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Kai Ding
- Department of Radiation Oncology, Suqian First Hospital, Suqian, Jiangsu, China
| | - Jing Wu
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Hong-Ming Zhu
- Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Xia He
- The Fourth Clinical School of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
| | - Li Yin
- The Fourth Clinical School of Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Radiation Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing Medical University Affiliated Cancer Hospital, Nanjing, Jiangsu, China
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Sengupta D, Deb M, Patra SK. Antagonistic activities of miR-148a and DNMT1: Ectopic expression of miR-148a impairs DNMT1 mRNA and dwindle cell proliferation and survival. Gene 2018; 660:68-79. [PMID: 29596883 DOI: 10.1016/j.gene.2018.03.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 02/21/2018] [Accepted: 03/22/2018] [Indexed: 12/20/2022]
Abstract
Functional analyses of noncoding RNAs have associated many micro RNAs (miRNA, miR) with various physiological processes, including proliferation, differentiation, development, cell metabolism, and apoptosis. Aberrant expression of miRNA and imbalance in their functions may lead to cellular aberration and different disease development, including cancer. In silico analysis of miRNA target prediction suggested that miR-148a possess a binding site in the 3' UTR of DNMT1 mRNA which can cause silencing of DNMT1 gene. Accordingly, we performed in vitro cell culture experiments to confirm the effect miR-148a on DNMT1 gene expression in prostate cancer cell lines. We demonstrated that there is a physical association between DNMT1 mRNA and miR-148a. We found that (i) ectopic expression of miR-148a induces programmed cell death and represses cell proliferation by targeting DNMT1; (ii) miR-148a gene is regulated by DNA methylation and DNMT1 in prostate cancer. We conclude that miR-148a is silenced by DNA methylation and ectopic expression of miR-148a suppresses DNMT1 expression and induced apoptotic genes expression in hormone-refractory prostate cancer cells.
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Affiliation(s)
- Dipta Sengupta
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Moonmoon Deb
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Biochemistry and Molecular Biology Group, Department of Life Science, National Institute of Technology, Rourkela, Odisha 769008, India.
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Interplay between regulation by methylation and noncoding RNAs in cancers. Eur J Cancer Prev 2018; 27:418-424. [PMID: 29557800 DOI: 10.1097/cej.0000000000000433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cancer is one of the most important health problems today; therefore, many researchers are focusing on exploring the mechanisms underlying its development and treatment. The field of cancer epigenetics has flourished in recent decades, and studies have shown that different epigenetic events, such as DNA methylation, histone modification, and noncoding RNA regulation, work together to influence cancer development and progression. In this short review, we summarize the interactions between methylation and noncoding RNAs that affect cancer development.
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Epigenetics and MicroRNAs in Cancer. Int J Mol Sci 2018; 19:ijms19020459. [PMID: 29401683 PMCID: PMC5855681 DOI: 10.3390/ijms19020459] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 02/08/2023] Open
Abstract
The ability to reprogram the transcriptional circuitry by remodeling the three-dimensional structure of the genome is exploited by cancer cells to promote tumorigenesis. This reprogramming occurs because of hereditable chromatin chemical modifications and the consequent formation of RNA-protein-DNA complexes that represent the principal actors of the epigenetic phenomena. In this regard, the deregulation of a transcribed non-coding RNA may be both cause and consequence of a cancer-related epigenetic alteration. This review summarizes recent findings that implicate microRNAs in the aberrant epigenetic regulation of cancer cells.
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Kar S, Patra SK. Overexpression of OCT4 induced by modulation of histone marks plays crucial role in breast cancer progression. Gene 2018; 643:35-45. [DOI: 10.1016/j.gene.2017.11.077] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 10/17/2017] [Accepted: 11/30/2017] [Indexed: 02/08/2023]
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Polycomb group protein Suz12 is regulated by a novel miRNA-like small RNA. Sci Rep 2018; 8:1720. [PMID: 29379063 PMCID: PMC5788869 DOI: 10.1038/s41598-018-19989-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 01/11/2018] [Indexed: 12/20/2022] Open
Abstract
Human mesenchymal stem/stromal cells (hMSCs) provide support for cancer progression, partly through their secretome that includes extracellular vesicles (EVs). Based on deep-sequencing of small RNA from EVs of MSCs, we now report the characterization of novel small RNA, named n-miR-G665, which exhibits typical properties of miRNAs. n-miR-G665 sequence is conserved and expressed in most cell types. Knockdown studies using anti-agomirs and shRNA studies demonstrated that n-miR-G665 plays an important role in cell proliferation. Functional assays to reveal the targets of n-miR-G665 showed that polycomb protein Suz12 is regulated by n-miR-G665, which in turn regulates the expression of n-miR-G665 through feedback loop mechanism. These data shed light on a previously unknown novel feedback regulatory mechanism for controlling Suz12 expression regulated by previously not described miRNA, which may highlight a new therapeutic approach to control the polycomb repressor complex 2 activity in cancers.
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Daniunaite K, Dubikaityte M, Gibas P, Bakavicius A, Rimantas Lazutka J, Ulys A, Jankevicius F, Jarmalaite S. Clinical significance of miRNA host gene promoter methylation in prostate cancer. Hum Mol Genet 2017; 26:2451-2461. [PMID: 28398479 DOI: 10.1093/hmg/ddx138] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 04/04/2017] [Indexed: 11/13/2022] Open
Abstract
Only a part of prostate cancer (PCa) patients has aggressive malignancy requiring adjuvant treatment after radical prostatectomy (RP). Biomarkers capable to predict biochemical PCa recurrence (BCR) after RP would significantly improve preoperative risk stratification and treatment decisions. MicroRNA (miRNA) deregulation has recently emerged as an important phenomenon in tumor development and progression, however, the mechanisms remain largely unstudied. In the present study, based on microarray profiling of DNA methylation in 9 pairs of PCa and noncancerous prostate tissues (NPT), host genes of miR-155-5p, miR-152-3p, miR-137, miR-31-5p, and miR-642a, -b were analyzed for promoter methylation in 129 PCa, 35 NPT, and 17 benign prostatic hyperplasia samples (BPH) and compared to the expression of mature miRNAs and their selected targets (DNMT1, KDM1A, and KDM5B). The Cancer Genome Atlas dataset was utilized for validation. Methylation of mir-155, mir-152, and mir-137 host genes was PCa-specific, and downregulation of miR-155-5p significantly correlated with promoter methylation. Higher KDM5B expression was observed in samples with methylated mir-155 or mir-137 promoters, whereas upregulation of KDM1A and DNMT1 was associated with mir-155 and mir-152 methylation status, respectively. Promoter methylation of mir-155, mir-152, and mir-31 was predictive of BCR-free survival in various Cox models and increased the prognostic value of clinicopathologic factors. In conclusion, methylated mir-155, mir-152, mir-137, and mir-31 host genes are promising diagnostic and/or prognostic biomarkers of PCa. Methylation status of particular miRNA host genes as independent variables or in combinations might assist physicians in identifying poor prognosis PCa patients preoperatively.
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Affiliation(s)
- Kristina Daniunaite
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius LT-10257, Lithuania
| | - Monika Dubikaityte
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius LT-10257, Lithuania
| | - Povilas Gibas
- Department of Biological DNA Modification, Institute of Biotechnology, Life Sciences Centre, Vilnius University, Vilnius LT-10257, Lithuania
| | - Arnas Bakavicius
- National Cancer Institute, Vilnius LT-08660.,Urology Centre, Vilnius University, Vilnius LT-08661, Lithuania
| | - Juozas Rimantas Lazutka
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius LT-10257, Lithuania
| | | | - Feliksas Jankevicius
- National Cancer Institute, Vilnius LT-08660.,Faculty of Medicine, Vilnius University, Vilnius LT-03101, Lithuania
| | - Sonata Jarmalaite
- Institute of Biosciences, Life Sciences Centre, Vilnius University, Vilnius LT-10257, Lithuania.,National Cancer Institute, Vilnius LT-08660
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Friedrich M, Pracht K, Mashreghi MF, Jäck HM, Radbruch A, Seliger B. The role of the miR-148/-152 family in physiology and disease. Eur J Immunol 2017; 47:2026-2038. [DOI: 10.1002/eji.201747132] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 07/30/2017] [Accepted: 09/01/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Michael Friedrich
- Institute of Medical Immunology; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
| | - Katharina Pracht
- Division of Molecular Immunology; Nikolaus-Fiebiger Center; Department of Internal Medicine III; University of Erlangen-Nürnberg; Erlangen Germany
| | | | - Hans-Martin Jäck
- Division of Molecular Immunology; Nikolaus-Fiebiger Center; Department of Internal Medicine III; University of Erlangen-Nürnberg; Erlangen Germany
| | | | - Barbara Seliger
- Institute of Medical Immunology; Martin-Luther-University Halle-Wittenberg; Halle/Saale Germany
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Alavian-Ghavanini A, Rüegg J. Understanding Epigenetic Effects of Endocrine Disrupting Chemicals: From Mechanisms to Novel Test Methods. Basic Clin Pharmacol Toxicol 2017; 122:38-45. [PMID: 28842957 DOI: 10.1111/bcpt.12878] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 08/21/2017] [Indexed: 01/20/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are man-made chemicals that interfere with hormonal signalling pathways. They are used in, for example, production of common household materials, in resin-based medical supplies and in pesticides. Thus, they are environmentally ubiquitous and human beings and wildlife are exposed to them on a daily basis. Early-life exposure to EDCs has been associated with later-life adversities such as obesity, diabetes and cancer. Mechanisms underlying such associations are unknown but are likely to be mediated by epigenetic changes induced by EDCs. Epigenetics is the study of changes in gene function that are heritable but do not entail a change in DNA sequence. EDCs have been shown to affect epigenetic marks such as DNA methylation and histone modifications. The scope of this article was to review today's knowledge about mechanisms involved in EDC-induced epigenetic changes and to discuss how this knowledge could be used for designing novel methods addressing epigenetic effects of EDCs.
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Affiliation(s)
- Ali Alavian-Ghavanini
- Unit of Toxicology Sciences, Swetox, Department of Clinical Neurosciences, Karolinska Institutet, Södertälje, Sweden
| | - Joëlle Rüegg
- Unit of Toxicology Sciences, Swetox, Department of Clinical Neurosciences, Karolinska Institutet, Södertälje, Sweden
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Zhang P, Sun H, Yang B, Luo W, Liu Z, Wang J, Zuo Y. miR-152 regulated glioma cell proliferation and apoptosis via Runx2 mediated by DNMT1. Biomed Pharmacother 2017; 92:690-695. [PMID: 28595085 DOI: 10.1016/j.biopha.2017.05.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 05/17/2017] [Accepted: 05/22/2017] [Indexed: 10/19/2022] Open
Abstract
BACKGROUND Aberrant DNA methylation is associated with tumor onset and progression. Study has verified that the DNA methylation of miR-152 was mediated in many tumors, but whether it involved in glioblastomas was still unclear. METHODS This study enrolled 20 patients with glioma to analyze the expression pattern of miR-152. Real-time PCR and western blot were used to detect the mRNA or protein expression level, respectively. The relationship between miR-152 and runx2 was detected by Luciferase reporter assay. The methylation level of miR-152 was determined by methylation-specific PCR. Cell proliferation and apoptosis were detected by MTT and Annexin-FITC/PI assay. RESULTS The expression of miR-152 was down-regulated while the expression of DNMT1 was up-regulated in both glioma tissue and cell lines. MiR-152 was hypermethylated and its expression was negatively correlated with DNMT in glioma cell lines. DNMT1 knockdown promoted the expression of miR-152, however, DNMT1 overexpression suppressed the expression of miR-152. MiR-152 overexpression promoted glioma cell apoptosis while miR-152 knockdown promoted cell proliferation. MiR-152 targets Runx2 to regulate its expression, Runx2 overexpression abolished the effects of miR-152 overexpression. CONCLUSION MiR-152 regulated cell proliferation and apoptosis of glioma mediated by Runx2, while the mechanism of down regulated miR-152 in glioma tissues and cells was its hypermethylation.
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Affiliation(s)
- Peng Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China.
| | - Hongwei Sun
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
| | - Bo Yang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
| | - Wenzheng Luo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
| | - Zengjin Liu
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
| | - Junkuan Wang
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
| | - Yuchao Zuo
- Department of Neurosurgery, The First Affiliated Hospital of Zhengzhou, No. 1, East Jianshe Road, Zhengzhou, Henan Province, China
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Nayak D, Ashe S, Ranjan Rauta P, Nayak B. Assessment of antioxidant, antimicrobial and anti-osteosarcoma potential of four traditionally used Indian medicinal plants. J Appl Biomed 2017. [DOI: 10.1016/j.jab.2016.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Salvia-Nelumbinis Naturalis Formula Improved Inflammation in LPS Stressed Macrophages via Upregulating MicroRNA-152. Mediators Inflamm 2017; 2017:5842747. [PMID: 28167852 PMCID: PMC5266850 DOI: 10.1155/2017/5842747] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/06/2016] [Accepted: 12/15/2016] [Indexed: 12/26/2022] Open
Abstract
Salvia-Nelumbinis naturalis (SNN) formula is an effective agent in treating nonalcoholic steatohepatitis (NASH); however, the precise mechanisms are still undefined. Activation of Kupffer cells by gut-derived lipopolysaccharide (LPS) plays a central role in the pathogenesis of NASH. In the present study, we aimed to explore the epigenetic regulation of microRNAs under the beneficial effects of SNN-containing serum in LPS stressed macrophages. Kupffer cells were isolated from C57BL/6 mice and treated with LPS or LPS and SNN-containing serum; the mRNA expression of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) was assessed. By using microarray chips, we investigated differentially expressed microRNA profiles to decipher the underlining mechanisms of SNN-containing serum. It was revealed that SNN-containing serum decreased TNF-α and IL-6 expression, and microRNA-152 was identified as the potential epigenetic regulator. We further verified the pharmacological effects in Raw264.7 cells; while transfection with miRNA-152 mimics could reduce TNF-α and IL-6, transfection with miRNA-152 inhibitor blocked the anti-inflammatory effect of SNN-containing serum. These results suggested that SNN-containing serum could improve inflammation in LPS stressed Kupffer cells and macrophages via upregulating microRNA-152.
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