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Moncan M, Rakhsh-Khorshid H, Eriksson LA, Samali A, Gorman AM. Insights into the structure and function of the RNA ligase RtcB. Cell Mol Life Sci 2023; 80:352. [PMID: 37935993 PMCID: PMC10630183 DOI: 10.1007/s00018-023-05001-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/19/2023] [Accepted: 10/11/2023] [Indexed: 11/09/2023]
Abstract
To be functional, some RNAs require a processing step involving splicing events. Each splicing event necessitates an RNA ligation step. RNA ligation is a process that can be achieved with various intermediaries such as self-catalysing RNAs, 5'-3' and 3'-5' RNA ligases. While several types of RNA ligation mechanisms occur in human, RtcB is the only 3'-5' RNA ligase identified in human cells to date. RtcB RNA ligation activity is well known to be essential for the splicing of XBP1, an essential transcription factor of the unfolded protein response; as well as for the maturation of specific intron-containing tRNAs. As such, RtcB is a core factor in protein synthesis and homeostasis. Taking advantage of the high homology between RtcB orthologues in archaea, bacteria and eukaryotes, this review will provide an introduction to the structure of RtcB and the mechanism of 3'-5' RNA ligation. This analysis is followed by a description of the mechanisms regulating RtcB activity and localisation, its known partners and its various functions from bacteria to human with a specific focus on human cancer.
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Affiliation(s)
- Matthieu Moncan
- Apoptosis Research Centre, University of Galway, Galway, Ireland
- School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
| | - Hassan Rakhsh-Khorshid
- Apoptosis Research Centre, University of Galway, Galway, Ireland
- School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
| | - Leif A Eriksson
- Department of Chemistry and Molecular Biology, University of Gothenburg, 405 30, Göteborg, Sweden
| | - Afshin Samali
- Apoptosis Research Centre, University of Galway, Galway, Ireland
- School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
- CÚRAM SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland
| | - Adrienne M Gorman
- Apoptosis Research Centre, University of Galway, Galway, Ireland.
- School of Biological and Chemical Sciences, University of Galway, Galway, Ireland.
- CÚRAM SFI Research Centre for Medical Devices, University of Galway, Galway, Ireland.
- Biomedical Sciences, Upper Newcastle, University of Galway, Galway, H91 W2TY, Ireland.
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Hastings JF, Latham SL, Kamili A, Wheatley MS, Han JZ, Wong-Erasmus M, Phimmachanh M, Nobis M, Pantarelli C, Cadell AL, O’Donnell YE, Leong KH, Lynn S, Geng FS, Cui L, Yan S, Achinger-Kawecka J, Stirzaker C, Norris MD, Haber M, Trahair TN, Speleman F, De Preter K, Cowley MJ, Bogdanovic O, Timpson P, Cox TR, Kolch W, Fletcher JI, Fey D, Croucher DR. Memory of stochastic single-cell apoptotic signaling promotes chemoresistance in neuroblastoma. Sci Adv 2023; 9:eabp8314. [PMID: 36867694 PMCID: PMC9984174 DOI: 10.1126/sciadv.abp8314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Gene expression noise is known to promote stochastic drug resistance through the elevated expression of individual genes in rare cancer cells. However, we now demonstrate that chemoresistant neuroblastoma cells emerge at a much higher frequency when the influence of noise is integrated across multiple components of an apoptotic signaling network. Using a JNK activity biosensor with longitudinal high-content and in vivo intravital imaging, we identify a population of stochastic, JNK-impaired, chemoresistant cells that exist because of noise within this signaling network. Furthermore, we reveal that the memory of this initially random state is retained following chemotherapy treatment across a series of in vitro, in vivo, and patient models. Using matched PDX models established at diagnosis and relapse from individual patients, we show that HDAC inhibitor priming cannot erase the memory of this resistant state within relapsed neuroblastomas but improves response in the first-line setting by restoring drug-induced JNK activity within the chemoresistant population of treatment-naïve tumors.
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Affiliation(s)
- Jordan F. Hastings
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Sharissa L. Latham
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Alvin Kamili
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Madeleine S. Wheatley
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Jeremy Z. R. Han
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Marie Wong-Erasmus
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Monica Phimmachanh
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Max Nobis
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Chiara Pantarelli
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Antonia L. Cadell
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Yolande E. I. O’Donnell
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - King Ho Leong
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Sophie Lynn
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Fan-Suo Geng
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
| | - Lujing Cui
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Sabrina Yan
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Joanna Achinger-Kawecka
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Clare Stirzaker
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Murray D. Norris
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
- University of New South Wales Centre for Childhood Cancer Research, UNSW Sydney, Sydney, NSW, Australia
| | - Michelle Haber
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
| | - Toby N. Trahair
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
- Kids Cancer Centre, Sydney Children’s Hospital, Randwick, NSW 2031, Australia
| | - Frank Speleman
- Center for Medical Genetics, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
| | - Katleen De Preter
- Center for Medical Genetics, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent, Ghent University, Ghent, Belgium
| | - Mark J. Cowley
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
- University of New South Wales Centre for Childhood Cancer Research, UNSW Sydney, Sydney, NSW, Australia
| | - Ozren Bogdanovic
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Paul Timpson
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Thomas R. Cox
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
| | - Walter Kolch
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Jamie I. Fletcher
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
- Children’s Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, Sydney, NSW, Australia
- University of New South Wales Centre for Childhood Cancer Research, UNSW Sydney, Sydney, NSW, Australia
| | - Dirk Fey
- Systems Biology Ireland, School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - David R. Croucher
- Cancer Ecosystems Program, Garvan Institute of Medical Research, Sydney, NSW 2010, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, NSW, Australia
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