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Achom M, Sadagopan A, Bao C, McBride F, Xu Q, Konda P, Tourdot RW, Li J, Nakhoul M, Gallant DS, Ahmed UA, O’Toole J, Freeman D, Mary Lee GS, Hecht JL, Kauffman EC, Einstein DJ, Choueiri TK, Zhang CZ, Viswanathan SR. A genetic basis for cancer sex differences revealed in Xp11 translocation renal cell carcinoma. bioRxiv 2023:2023.08.04.552029. [PMID: 37577497 PMCID: PMC10418269 DOI: 10.1101/2023.08.04.552029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Xp11 translocation renal cell carcinoma (tRCC) is a female-predominant kidney cancer driven by translocations between the TFE3 gene on chromosome Xp11.2 and partner genes located on either chrX or on autosomes. The rearrangement processes that underlie TFE3 fusions, and whether they are linked to the female sex bias of this cancer, are largely unexplored. Moreover, whether oncogenic TFE3 fusions arise from both the active and inactive X chromosomes in females remains unknown. Here we address these questions by haplotype-specific analyses of whole-genome sequences of 29 tRCC samples from 15 patients and by re-analysis of 145 published tRCC whole-exome sequences. We show that TFE3 fusions universally arise as reciprocal translocations with minimal DNA loss or insertion at paired break ends. Strikingly, we observe a near exact 2:1 female:male ratio in TFE3 fusions arising via X:autosomal translocation (but not via X inversion), which accounts for the female predominance of tRCC. This 2:1 ratio is at least partially attributable to oncogenic fusions involving the inactive X chromosome and is accompanied by partial re-activation of silenced chrX genes on the rearranged chromosome. Our results highlight how somatic alterations involving the X chromosome place unique constraints on tumor initiation and exemplify how genetic rearrangements of the sex chromosomes can underlie cancer sex differences.
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Affiliation(s)
- Mingkee Achom
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Data Science, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Medicine, Harvard Medical School; Boston, MA, USA
| | - Ananthan Sadagopan
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Chunyang Bao
- Department of Data Science, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Pathology, Brigham and Women’s Hospital; Boston, MA, USA
- Cancer Program, Broad Institute of MIT and Harvard; Cambridge, MA, USA
| | - Fiona McBride
- Department of Biomedical Informatics, Blavatnik Institute, Harvard Medical School; Boston, MA, USA
| | - Qingru Xu
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Data Science, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Prathyusha Konda
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Medicine, Harvard Medical School; Boston, MA, USA
| | - Richard W. Tourdot
- Department of Data Science, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Biomedical Informatics, Blavatnik Institute, Harvard Medical School; Boston, MA, USA
| | - Jiao Li
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Medicine, Harvard Medical School; Boston, MA, USA
| | - Maria Nakhoul
- Department of Informatics & Analytics, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Daniel S. Gallant
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Usman Ali Ahmed
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Jillian O’Toole
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Dory Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Gwo-Shu Mary Lee
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
| | - Jonathan L. Hecht
- Department of Pathology, Beth Israel Deaconess Medical Center; Boston, MA, USA
| | - Eric C Kauffman
- Department of Urology, Roswell Park Comprehensive Cancer Center; Buffalo, New York, USA
| | - David J Einstein
- Division of Medical Oncology, Beth Israel Deaconess Medical Center; Boston, MA, USA
| | - Toni K. Choueiri
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Medicine, Harvard Medical School; Boston, MA, USA
- Department of Medicine, Brigham and Women’s Hospital; Boston, MA, USA
| | - Cheng-Zhong Zhang
- Department of Data Science, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Pathology, Brigham and Women’s Hospital; Boston, MA, USA
- Cancer Program, Broad Institute of MIT and Harvard; Cambridge, MA, USA
| | - Srinivas R. Viswanathan
- Department of Medical Oncology, Dana-Farber Cancer Institute; Boston, MA, USA
- Department of Medicine, Harvard Medical School; Boston, MA, USA
- Cancer Program, Broad Institute of MIT and Harvard; Cambridge, MA, USA
- Department of Medicine, Brigham and Women’s Hospital; Boston, MA, USA
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Chen J, Chen S, Xu C, Yang H, Achom M, Wang X. A key virulence effector from cyst nematodes targets host autophagy to promote nematode parasitism. New Phytol 2023; 237:1374-1390. [PMID: 36349395 DOI: 10.1111/nph.18609] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Autophagy, an intracellular degradation system conserved in eukaryotes, has been increasingly recognized as a key battlefield in plant-pathogen interactions. However, the role of plant autophagy in nematode parasitism is mostly unknown. We report here the identification of a novel and conserved effector, Nematode Manipulator of Autophagy System 1 (NMAS1), from plant-parasitic cyst nematodes (Heterodera and Globodera spp.). We used molecular and genetic analyses to demonstrate that NMAS1 is required for nematode parasitism. The NMAS1 effectors are potent suppressors of reactive oxygen species (ROS) induced by flg22 and cell death mediated by immune receptors in Nicotiana benthamiana, suggesting a key role of NMAS1 effectors in nematode virulence. Arabidopsis atg mutants defective in autophagy showed reduced susceptibility to nematode infection. The NMAS1 effectors contain predicted AuTophaGy-related protein 8 (ATG8)-interacting motif (AIM) sequences. In planta protein-protein interaction assays further demonstrated that NMAS1 effectors specifically interact with host plant ATG8 proteins. Interestingly, mutation in AIM2 of GrNMAS1 from the potato cyst nematode Globodera rostochiensis abolishes its interaction with potato StATG8 proteins and its activity in ROS suppression. Collectively, our results reveal for the first time that cyst nematodes employ a conserved AIM-containing virulence effector capable of targeting a key component of host autophagy to promote disease.
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Affiliation(s)
- Jiansong Chen
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
- Rice Research Institute & Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China
- Department of Plant Pathology, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Shiyan Chen
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Chunling Xu
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
- Department of Plant Pathology, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Huijun Yang
- Robert W. Holley Center for Agriculture and Health, US Department of Agriculture, Agricultural Research Service, Ithaca, NY, 14853, USA
| | - Mingkee Achom
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Xiaohong Wang
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
- Robert W. Holley Center for Agriculture and Health, US Department of Agriculture, Agricultural Research Service, Ithaca, NY, 14853, USA
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Achom M, Roy P, Lagunas B, Picot E, Richards L, Bonyadi-Pour R, Pardal AJ, Baxter L, Richmond BL, Aschauer N, Fletcher EM, Rowson M, Blackwell J, Rich-Griffin C, Mysore KS, Wen J, Ott S, Carré IA, Gifford ML. Plant circadian clock control of Medicago truncatula nodulation via regulation of nodule cysteine-rich peptides. J Exp Bot 2022; 73:2142-2156. [PMID: 34850882 PMCID: PMC8982390 DOI: 10.1093/jxb/erab526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Legumes house nitrogen-fixing endosymbiotic rhizobia in specialized polyploid cells within root nodules, which undergo tightly regulated metabolic activity. By carrying out expression analysis of transcripts over time in Medicago truncatula nodules, we found that the circadian clock enables coordinated control of metabolic and regulatory processes linked to nitrogen fixation. This involves the circadian clock-associated transcription factor LATE ELONGATED HYPOCOTYL (LHY), with lhy mutants being affected in nodulation. Rhythmic transcripts in root nodules include a subset of nodule-specific cysteine-rich peptides (NCRs) that have the LHY-bound conserved evening element in their promoters. Until now, studies have suggested that NCRs act to regulate bacteroid differentiation and keep the rhizobial population in check. However, these conclusions came from the study of a few members of this very large gene family that has complex diversified spatio-temporal expression. We suggest that rhythmic expression of NCRs may be important for temporal coordination of bacterial activity with the rhythms of the plant host, in order to ensure optimal symbiosis.
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Affiliation(s)
- Mingkee Achom
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Proyash Roy
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
- Department of Genetic Engineering & Biotechnology, University of Dhaka, Dhaka, Bangladesh
| | - Beatriz Lagunas
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Emma Picot
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Luke Richards
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Roxanna Bonyadi-Pour
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Alonso J Pardal
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Laura Baxter
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Bethany L Richmond
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Nadine Aschauer
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Eleanor M Fletcher
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
- School of Biological Sciences, University of Bristol, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - Monique Rowson
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Joseph Blackwell
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Charlotte Rich-Griffin
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
- Wellcome Centre for Human Genetics, University of Oxford, Oxford OX3 7BN, UK
| | - Kirankumar S Mysore
- Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK 73401, USA
| | - Jiangqi Wen
- Institute for Agricultural Biosciences, Oklahoma State University, Ardmore, OK 73401, USA
| | - Sascha Ott
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
| | - Isabelle A Carré
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
| | - Miriam L Gifford
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK
- Warwick Integrative Synthetic Biology Centre, University of Warwick, Coventry CV4 7AL, UK
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Roy P, Achom M, Wilkinson H, Lagunas B, Gifford ML. Symbiotic Outcome Modified by the Diversification from 7 to over 700 Nodule-Specific Cysteine-Rich Peptides. Genes (Basel) 2020; 11:E348. [PMID: 32218172 PMCID: PMC7230169 DOI: 10.3390/genes11040348] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/11/2020] [Accepted: 03/22/2020] [Indexed: 12/31/2022] Open
Abstract
Legume-rhizobium symbiosis represents one of the most successfully co-evolved mutualisms. Within nodules, the bacterial cells undergo distinct metabolic and morphological changes and differentiate into nitrogen-fixing bacteroids. Legumes in the inverted repeat lacking clade (IRLC) employ an array of defensin-like small secreted peptides (SSPs), known as nodule-specific cysteine-rich (NCR) peptides, to regulate bacteroid differentiation and activity. While most NCRs exhibit bactericidal effects in vitro, studies confirm that inside nodules they target the bacterial cell cycle and other cellular pathways to control and extend rhizobial differentiation into an irreversible (or terminal) state where the host gains control over bacteroids. While NCRs are well established as positive regulators of effective symbiosis, more recent findings also suggest that NCRs affect partner compatibility. The extent of bacterial differentiation has been linked to species-specific size and complexity of the NCR gene family that varies even among closely related species, suggesting a more recent origin of NCRs followed by rapid expansion in certain species. NCRs have diversified functionally, as well as in their expression patterns and responsiveness, likely driving further functional specialisation. In this review, we evaluate the functions of NCR peptides and their role as a driving force underlying the outcome of rhizobial symbiosis, where the plant is able to determine the outcome of rhizobial interaction in a temporal and spatial manner.
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Affiliation(s)
- Proyash Roy
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK; (P.R.); (M.A.); (H.W.); (B.L.)
- Department of Genetic Engineering and Biotechnology, University of Dhaka, Dhaka 1205, Bangladesh
| | - Mingkee Achom
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK; (P.R.); (M.A.); (H.W.); (B.L.)
- Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York, NY 14853, USA
| | - Helen Wilkinson
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK; (P.R.); (M.A.); (H.W.); (B.L.)
| | - Beatriz Lagunas
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK; (P.R.); (M.A.); (H.W.); (B.L.)
| | - Miriam L. Gifford
- School of Life Sciences, Gibbet Hill Road, University of Warwick, Coventry CV4 7AL, UK; (P.R.); (M.A.); (H.W.); (B.L.)
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Lagunas B, Achom M, Bonyadi-Pour R, Pardal AJ, Richmond BL, Sergaki C, Vázquez S, Schäfer P, Ott S, Hammond J, Gifford ML. Regulation of Resource Partitioning Coordinates Nitrogen and Rhizobia Responses and Autoregulation of Nodulation in Medicago truncatula. Mol Plant 2019; 12:833-846. [PMID: 30953787 PMCID: PMC6557310 DOI: 10.1016/j.molp.2019.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 03/14/2019] [Accepted: 03/18/2019] [Indexed: 05/29/2023]
Abstract
Understanding how plants respond to nitrogen in their environment is crucial for determining how they use it and how the nitrogen use affects other processes related to plant growth and development. Under nitrogen limitation the activity and affinity of uptake systems is increased in roots, and lateral root formation is regulated in order to adapt to low nitrogen levels and scavenge from the soil. Plants in the legume family can form associations with rhizobial nitrogen-fixing bacteria, and this association is tightly regulated by nitrogen levels. The effect of nitrogen on nodulation has been extensively investigated, but the effects of nodulation on plant nitrogen responses remain largely unclear. In this study, we integrated molecular and phenotypic data in the legume Medicago truncatula and determined that genes controlling nitrogen influx are differently expressed depending on whether plants are mock or rhizobia inoculated. We found that a functional autoregulation of nodulation pathway is required for roots to perceive, take up, and mobilize nitrogen as well as for normal root development. Our results together revealed that autoregulation of nodulation, root development, and the location of nitrogen are processes balanced by the whole plant system as part of a resource-partitioning mechanism.
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Affiliation(s)
- Beatriz Lagunas
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Mingkee Achom
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | | | - Alonso J Pardal
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | | | - Chrysi Sergaki
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Saúl Vázquez
- Gateway Building, Sutton Bonington Campus, University of Nottingham, Sutton Bonington LE12 5RD, UK
| | - Patrick Schäfer
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK
| | - Sascha Ott
- Department of Computer Science, University of Warwick, Coventry CV4 7AL, UK
| | - John Hammond
- School of Agriculture, Policy and Development, University of Reading, Reading RG6 6AH, UK; Southern Cross Plant Science, Southern Cross University, Lismore, NSW 2480, Australia
| | - Miriam L Gifford
- School of Life Sciences, University of Warwick, Coventry CV4 7AL, UK.
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