1
|
Liu B, Cao J, Wu B, Hao K, Wang X, Chen X, Shen Z. METTL3 and STAT3 form a positive feedback loop to promote cell metastasis in hepatocellular carcinoma. Cell Commun Signal 2023; 21:121. [PMID: 37231451 DOI: 10.1186/s12964-023-01148-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND It is well-established that most Hepatocellular carcinoma (HCC) patients die of metastasis, yet the potential mechanisms orchestrating metastasis remain poorly understood. Current evidence suggests that the dysregulation of METTL3-mediated m6A methylation modification is closely associated with cancer progression. STAT3 is an oncogenic transcription factor that reportedly plays a central role in the occurrence and development of HCC. However, the relationship between METTL3 and STAT3 in HCC metastasis remains unclear. METHODS The relationship between METTL3 expression and the survival of HCC patients was assessed by online tools GEPIA and Kaplan-Meier Plotter. Western blotting, Tissue microarray (TMA), and immunohistochemistry (IHC) staining were used to evaluate the expression levels of METTL3 and STAT3 in HCC cell lines and metastatic and non-metastatic tissues. Methylated RNA immunoprecipitation (MeRIP), MeRIP sequencing (MeRIP-seq), qRT-PCR, RNA immunoprecipitation (RIP), Western blotting and luciferase reporter gene assay were utilized to clarify the mechanism of METTL3 regulating STAT3 expression. Immunofluorescence staining, Western blotting, qRT-PCR, Co-immunoprecipitation (Co-IP), IHC staining, TMA and Chromatin immunoprecipitation (ChIP) assay were performed to explore the mechanism of STAT3 modulating METTL3 localization. Cell viability, wound healing and transwell assay, and orthotopic xenograft model were used to evaluate the role of METTL3-STAT3 feedback loop in the promotion of HCC metastasis in vitro and in vivo. RESULTS METTL3 and STAT3 are both abundantly expressed in high-metastatic HCC cells and tissues. Moreover, a positive correlation was found between the expression of STAT3 and METTL3 in HCC tissues. Mechanistically, METTL3 could induce the m6A modification of STAT3 mRNA, and then promote the translation of m6A-contained STAT3 mRNA by interacting with the translation initiation machinery. In contrast, STAT3 promoted nuclear localization of METTL3 via transcriptionally upregulating WTAP, a vital member of the methyltransferase complex, and facilitated the methyltransferase function of METTL3. METTL3 and STAT3 form a positive feedback loop to accelerate HCC metastasis in vitro and in vivo. CONCLUSIONS Our findings reveal a novel mechanism of HCC metastasis and uncover the METTL3-STAT3 feedback signaling as a potential target for the anti-metastatic treatment of HCC. Video Abstract.
Collapse
Affiliation(s)
- Bowen Liu
- Laboratory of Infection and Immunology, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, People's Republic of China.
| | - Jinling Cao
- Laboratory of Infection and Immunology, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, People's Republic of China
| | - Biting Wu
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Kaixuan Hao
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Xiangyun Wang
- Laboratory of Infection and Immunology, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, People's Republic of China
| | - Xin Chen
- Laboratory of Infection and Immunology, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, People's Republic of China
| | - Zhifa Shen
- Laboratory of Infection and Immunology, School of Medical Technology, Xinxiang Medical University, Xinxiang, Henan, 453003, People's Republic of China.
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, Zhejiang Provincial Key Laboratory of Medical Genetics, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
| |
Collapse
|
2
|
Rodrigues DC, Mufteev M, Yuki KE, Narula A, Wei W, Piekna A, Liu J, Pasceri P, Rissland OS, Wilson MD, Ellis J. Buffering of transcription rate by mRNA half-life is a conserved feature of Rett syndrome models. Nat Commun 2023; 14:1896. [PMID: 37019888 PMCID: PMC10076348 DOI: 10.1038/s41467-023-37339-6] [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: 01/26/2022] [Accepted: 03/13/2023] [Indexed: 04/07/2023] Open
Abstract
Transcriptional changes in Rett syndrome (RTT) are assumed to directly correlate with steady-state mRNA levels, but limited evidence in mice suggests that changes in transcription can be compensated by post-transcriptional regulation. We measure transcription rate and mRNA half-life changes in RTT patient neurons using RATEseq, and re-interpret nuclear and whole-cell RNAseq from Mecp2 mice. Genes are dysregulated by changing transcription rate or half-life and are buffered when both change. We utilized classifier models to predict the direction of transcription rate changes and find that combined frequencies of three dinucleotides are better predictors than CA and CG. MicroRNA and RNA-binding Protein (RBP) motifs are enriched in 3'UTRs of genes with half-life changes. Nuclear RBP motifs are enriched on buffered genes with increased transcription rate. We identify post-transcriptional mechanisms in humans and mice that alter half-life or buffer transcription rate changes when a transcriptional modulator gene is mutated in a neurodevelopmental disorder.
Collapse
Affiliation(s)
- Deivid C Rodrigues
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Marat Mufteev
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
| | - Kyoko E Yuki
- Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Ashrut Narula
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Molecular Medicine, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Wei Wei
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Alina Piekna
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Jiajie Liu
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Peter Pasceri
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - Olivia S Rissland
- Molecular Medicine, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
- RNA Bioscience Initiative and Department of Biochemistry & Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Michael D Wilson
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Genetics & Genome Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada
| | - James Ellis
- Developmental & Stem Cell Biology, Hospital for Sick Children, Toronto, ON, M5G 0A4, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, ON, M5S 1A8, Canada.
| |
Collapse
|
3
|
Cherbonneau F, Li G, Gokulnath P, Sahu P, Prunevieille A, Kitchen R, Benichou G, Larghero J, Domian I, Das S. TRACE-seq: A transgenic system for unbiased and non-invasive transcriptome profiling of living cells. iScience 2022; 25:103806. [PMID: 35198871 PMCID: PMC8844816 DOI: 10.1016/j.isci.2022.103806] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 11/11/2021] [Accepted: 01/20/2022] [Indexed: 11/16/2022] Open
Abstract
Dynamic profiling of changes in gene expression in response to stressors in specific microenvironments without requiring cellular destruction remains challenging. Current methodologies that seek to interrogate gene expression at a molecular level require sampling of cellular transcriptome and therefore lysis of the cell, preventing serial analysis of cellular transcriptome. To address this area of unmet need, we have recently developed a technology allowing transcriptomic analysis over time without cellular destruction. Our method, TRACE-seq (TRanscriptomic Analysis Captured in Extracellular vesicles using sequencing), is characterized by a cell-type specific transgene expression. It provides data on the transcriptome inside extracellular vesicles that provides an accurate representation of stress-responsive cellular transcriptomic changes. Thus, the transcriptome of cells expressing TRACE can be followed over time without destroying the source cell, which is a powerful tool for many fields of fundamental and translational biology research. TRanscriptomic Analysis Captured in Extracellular vesicles using RNA-sequencing Excellent correlation of cellular and EV transcriptome using this method Accurate profiling of gene expression changes in response to stress signals
Collapse
Affiliation(s)
- François Cherbonneau
- Université de Paris, AP-HP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, U976, CICBT CBT501, INSERM, Paris, France.,Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Guoping Li
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Priyanka Gokulnath
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Parul Sahu
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Aurore Prunevieille
- Université de Paris, AP-HP, Hôpital Saint-Louis, Human Immunology and Immunopathology, UMR976, INSERM, Paris, France.,Transplant Research Center, Department of Surgery, Center for Transplantation Sciences, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Robert Kitchen
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Gilles Benichou
- Transplant Research Center, Department of Surgery, Center for Transplantation Sciences, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Jérôme Larghero
- Université de Paris, AP-HP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, U976, CICBT CBT501, INSERM, Paris, France
| | - Ibrahim Domian
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| | - Saumya Das
- Cardiovascular Research Center, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge Street, Simches 3(rd.) Floor, Boston, MA 02114, USA
| |
Collapse
|