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Quentin M, Boschheidgen M, Radtke JP, Spohn F, Ullrich T, Drewes L, Valentin B, Lakes J, Al-Monajjed, Arsov C, Esposito I, Albers P, Antoch G, Schimmöller L. MRI in-bore biopsy following MRI/US fusion-guided biopsy in patients with persistent suspicion of clinically significant prostate cancer. Eur J Radiol 2024; 175:111436. [PMID: 38522396 DOI: 10.1016/j.ejrad.2024.111436] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/23/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
PURPOSE Patients with suspicion of clinically significant prostate cancer (csPC) on multiparametric prostate MRI (mpMRI) but negative or inconclusive MRI/US fusion-guided biopsy (FB) can be challenging in clinical practice. To assess the utility of MRI in-bore biopsy (IB) in patients with discordant imaging and histopathological findings after FB. METHODS Consecutive patients with Prostate Imaging Reporting and Data System (PI-RADS) category 4 or 5 on mpMRI at 3T after FB without histologically confirmed csPC who underwent IB between 01/2014 and 05/2022, were retrospectively included. The primary objective was to assess the detection rate of csPC. Secondary objectives were to analyze clinical parameters, MRI parameters, and lesion localization. RESULTS In the final cohort of 51 patients, the IB resulted in an overall detection rate of 71% for PC and 47% for csPC. Furthermore, in 55% of cases with initial low-grade PC, the Gleason score was upgraded after IB. CsPC was often detected apical and/or anterior. The detection rate for PC was 58% in PI-RADS category 4 and 94% in PI-RADS category 5 (csPC 39% and 61%, respectively). Patients with csPC had statistically significant smaller prostate volumes, a higher PI-RADS category, a higher prostate-specific antigen density (PSAD), and were older. CONCLUSIONS For a relevant proportion of patients with PI-RADS category 4 or 5 and negative or inconclusive findings on previous FB, but with persistent suspicion of csPC, a subsequent IB verified the presence of csPC. Therefore, IB can be a backup in cases of uncertainty.
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Affiliation(s)
- M Quentin
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - M Boschheidgen
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - J P Radtke
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - F Spohn
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - T Ullrich
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - L Drewes
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - B Valentin
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - J Lakes
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - Al-Monajjed
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - C Arsov
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany; Elisabeth-Krankenhaus Rheydt, Departement of Urology and Paediatric Urology, Staedtische Kliniken Moenchengladbach GmbH, Moenchengladbach, Germany.
| | - I Esposito
- University Dusseldorf, Medical Faculty, Institute of Pathology, D-40225 Dusseldorf, Germany.
| | - P Albers
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - G Antoch
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - L Schimmöller
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany; Department of Diagnostic, Interventional Radiology and Nuclear Medicine, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany.
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Ziayee F, Schimmöller L, Boschheidgen M, Kasprowski L, Al-Monajjed R, Quentin M, Radtke JP, Albers P, Antoch G, Ullrich T. Benefit of dynamic contrast-enhanced (DCE) imaging for prostate cancer detection depending on readers experience in prostate MRI. Clin Radiol 2024; 79:e468-e474. [PMID: 38185579 DOI: 10.1016/j.crad.2023.11.026] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 11/27/2023] [Indexed: 01/09/2024]
Abstract
AIM To investigate the relevance of dynamic contrast enhanced imaging (DCE) within multiparametric magnetic resonance imaging (mpMRI) for the detection of clinically significant prostate cancer (csPC) depending on reader experience. MATERIALS AND METHODS Consecutive patients with 3 T mpMRI and subsequent combined MRI/ultrasound fusion-guided targeted and systematic biopsy from January to September 2019 were included. All mpMRI examinations were read separately by two less experienced (R1; <500 prostate MRI) and two expert radiologists (R2; >5,000 prostate MRI) in consensus and blinded re-read as biparametric MRI (bpMRI). The primary endpoint was the performance comparison of mpMRI versus bpMRI of R1 and R2. RESULTS Fifty-three of 124 patients had csPC (43%). The PI-RADS agreement of bpMRI and mpMRI was fair for R1 (κ = 0.373) and moderate for R2 (κ = 0.508). R1 assessed 11 csPC with PI-RADS ≤3 (20.8%) on mpMRI and 12 (22.6%) on bpMRI (R2: 1 [1.9%] and 6 [11.3%], respectively). Sensitivity for csPC of mpMRI was 79.3% (NPV 79.3%) for R1 and 98.1% (NPV 97.5%) for R2 (bpMRI: 77.4% [NVP 75.5%] and 86.8% [NPV 84.4%], respectively). Specificity of mpMRI for csPC was 59.2% for R1 and 54.9% for R2 (bpMRI: 52.1% and 53.5%, respectively). Overall accuracy of mpMRI was 79.8% for R1 compared to bpMRI 66.9% (p=0.017; R2: 87.1% and 81.5%; p=0.230). CONCLUSION Prostate MRI benefits from reader experience. Less experienced readers missed a relevant proportion of csPC with mpMRI and even more with bpMRI. The overall performance of expert readers was comparable for mpMRI and bpMRI but DCE enabled detection of some further ISUP 2 PC.
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Affiliation(s)
- F Ziayee
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - L Schimmöller
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany; Department of Diagnostic, Interventional Radiology and Nuclear Medicine, Marien Hospital Herne, University Hospital of the Ruhr-University Bochum, Herne, Germany.
| | - M Boschheidgen
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - L Kasprowski
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - R Al-Monajjed
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - M Quentin
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - J P Radtke
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - P Albers
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - G Antoch
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
| | - T Ullrich
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, D-40225 Dusseldorf, Germany
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Zhao J, Huang K, Liu R, Lai Y, Abad P, Favery B, Jian H, Ling J, Li Y, Yang Y, Xie B, Quentin M, Mao Z. The root-knot nematode effector Mi2G02 hijacks a host plant trihelix transcription factor to promote nematode parasitism. Plant Commun 2024; 5:100723. [PMID: 37742073 PMCID: PMC10873892 DOI: 10.1016/j.xplc.2023.100723] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/12/2023] [Accepted: 09/19/2023] [Indexed: 09/25/2023]
Abstract
Root-knot nematodes (RKNs) cause huge agricultural losses every year. They secrete a repertoire of effectors to facilitate parasitism through the induction of plant-derived giant feeding cells, which serve as their sole source of nutrients. However, the mode of action of these effectors and their targeted host proteins remain largely unknown. In this study, we investigated the role of the effector Mi2G02 in Meloidogyne incognita parasitism. Host-derived Mi2G02 RNA interference in Arabidopsis thaliana affected giant cell development, whereas ectopic expression of Mi2G02 promoted root growth and increased plant susceptibility to M. incognita. We used various combinations of approaches to study the specific interactions between Mi2G02 and A. thaliana GT-3a, a trihelix transcription factor. GT-3a knockout in A. thaliana affected feeding-site development, resulting in production of fewer egg masses, whereas GT-3a overexpression in A. thaliana increased susceptibility to M. incognita and also root growth. Moreover, we demonstrated that Mi2G02 plays a role in maintaining GT-3a protein stabilization by inhibiting the 26S proteasome-dependent pathway, leading to suppression of TOZ and RAD23C expression and thus promoting nematode parasitism. This work enhances our understanding of how a pathogen effector manipulates the role and regulation of a transcription factor by interfering with a proteolysis pathway to reprogram gene expression for development of nematode feeding cells.
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Affiliation(s)
- Jianlong Zhao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Kaiwei Huang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Rui Liu
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuqing Lai
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Pierre Abad
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903 Sophia Antipolis, France
| | - Bruno Favery
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903 Sophia Antipolis, France
| | - Heng Jian
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing 100193, China
| | - Jian Ling
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yan Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yuhong Yang
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bingyan Xie
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903 Sophia Antipolis, France.
| | - Zhenchuan Mao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Chen Y, Liu Q, Sun X, Liu L, Zhao J, Yang S, Wang X, Quentin M, Abad P, Favery B, Jian H. Meloidogyne enterolobii MeMSP1 effector targets the glutathione-S-transferase phi GSTF family in Arabidopsis to manipulate host metabolism and promote nematode parasitism. New Phytol 2023; 240:2468-2483. [PMID: 37823217 DOI: 10.1111/nph.19298] [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] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023]
Abstract
Meloidogyne enterolobii is an emerging root-knot nematode species that overcomes most of the nematode resistance genes in crops. Nematode effector proteins secreted in planta are key elements in the molecular dialogue of parasitism. Here, we show the MeMSP1 effector is secreted into giant cells and promotes M. enterolobii parasitism. Using co-immunoprecipitation and bimolecular fluorescent complementation assays, we identified glutathione-S-transferase phi GSTFs as host targets of the MeMSP1 effector. This protein family plays important roles in plant responses to abiotic and biotic stresses. We demonstrate that MeMSP1 interacts with all Arabidopsis GSTF. Moreover, we confirmed that the N-terminal region of AtGSTF9 is critical for its interaction, and atgstf9 mutant lines are more susceptible to root-knot nematode infection. Combined transcriptome and metabolome analyses showed that MeMSP1 affects the metabolic pathways of Arabidopsis thaliana, resulting in the accumulation of amino acids, nucleic acids, and their metabolites, and organic acids and the downregulation of flavonoids. Our study has shed light on a novel effector mechanism that targets plant metabolism, reducing the production of plant defence-related compounds while favouring the accumulation of metabolites beneficial to the nematode, and thereby promoting parasitism.
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Affiliation(s)
- Yongpan Chen
- Department of Plant Pathology and MOA Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China
| | - Qian Liu
- Department of Plant Pathology and MOA Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China
- Sanya Institute of China Agricultural University, Sanya, 572024, China
| | - Xuqian Sun
- Department of Plant Pathology and MOA Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China
| | - Lei Liu
- Department of Plant Pathology and MOA Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China
| | - Jianlong Zhao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Shanshan Yang
- College of Agriculture, Guangxi University, Nanning, Guangxi, 530004, China
| | - Xiangfeng Wang
- National Maize Improvement Center, College of Agronomy and Biotechnology, China Agricultural University, Beijing, 100193, China
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Pierre Abad
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Bruno Favery
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Heng Jian
- Department of Plant Pathology and MOA Key Laboratory of Pest Monitoring and Green Management, China Agricultural University, Beijing, 100193, China
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Noureddine Y, da Rocha M, An J, Médina C, Mejias J, Mulet K, Quentin M, Abad P, Zouine M, Favery B, Jaubert-Possamai S. AUXIN RESPONSIVE FACTOR8 regulates development of the feeding site induced by root-knot nematodes in tomato. J Exp Bot 2023; 74:5752-5766. [PMID: 37310189 DOI: 10.1093/jxb/erad208] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 06/12/2023] [Indexed: 06/14/2023]
Abstract
Root-knot nematodes (RKN) from the genus Meloidogyne induce the dedifferentiation of root vascular cells into giant multinucleate feeding cells. These feeding cells result from an extensive reprogramming of gene expression, and auxin is known to be a key player in their development. However, little is known about how the auxin signal is transmitted during giant cell development. Integrative analyses combining transcriptome and small non-coding RNA datasets with the specific sequencing of cleaved transcripts identified genes targeted by miRNAs in tomato (Solanum lycopersicum) galls. The two auxin-responsive transcription factors ARF8A and ARF8B, and their miRNA167 regulators, were identified as robust gene-miRNA pair candidates to be involved in the tomato response to M. incognita. Spatiotemporal expression analysis using promoter-β-glucuronidase (GUS) fusions showed the up-regulation of ARF8A and ARF8B in RKN-induced feeding cells and surrounding cells. The generation and phenotyping of CRISPR (clustered regularly interspaced palindromic repeats) mutants demonstrated the role of ARF8A and ARF8B in giant cell development and allowed the characterization of their downstream regulated genes.
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Affiliation(s)
- Yara Noureddine
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Martine da Rocha
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Jing An
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, 31320 Auzeville-Tolosane, France
| | - Clémence Médina
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Joffrey Mejias
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Karine Mulet
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Pierre Abad
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Mohamed Zouine
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, UPS, Toulouse INP, 31320 Auzeville-Tolosane, France
| | - Bruno Favery
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
- International Research Organization for Advanced Science and Technology, Kumamoto University, Kumamoto 860-8555, Japan
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Verhoeven A, Finkers-Tomczak A, Prins P, Valkenburg-van Raaij DR, van Schaik CC, Overmars H, van Steenbrugge JJM, Tacken W, Varossieau K, Slootweg EJ, Kappers IF, Quentin M, Goverse A, Sterken MG, Smant G. The root-knot nematode effector MiMSP32 targets host 12-oxophytodienoate reductase 2 to regulate plant susceptibility. New Phytol 2023; 237:2360-2374. [PMID: 36457296 DOI: 10.1111/nph.18653] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
To establish persistent infections in host plants, herbivorous invaders, such as root-knot nematodes, must rely on effectors for suppressing damage-induced jasmonate-dependent host defenses. However, at present, the effector mechanisms targeting the biosynthesis of biologically active jasmonates to avoid adverse host responses are unknown. Using yeast two-hybrid, in planta co-immunoprecipitation, and mutant analyses, we identified 12-oxophytodienoate reductase 2 (OPR2) as an important host target of the stylet-secreted effector MiMSP32 of the root-knot nematode Meloidogyne incognita. MiMSP32 has no informative sequence similarities with other functionally annotated genes but was selected for the discovery of novel effector mechanisms based on evidence of positive, diversifying selection. OPR2 catalyzes the conversion of a derivative of 12-oxophytodienoate to jasmonic acid (JA) and operates parallel to 12-oxophytodienoate reductase 3 (OPR3), which controls the main pathway in the biosynthesis of jasmonates. We show that MiMSP32 targets OPR2 to promote parasitism of M. incognita in host plants independent of OPR3-mediated JA biosynthesis. Artificially manipulating the conversion of the 12-oxophytodienoate by OPRs increases susceptibility to multiple unrelated plant invaders. Our study is the first to shed light on a novel effector mechanism targeting this process to regulate the susceptibility of host plants.
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Affiliation(s)
- Ava Verhoeven
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
- Plant Stress Resilience, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
- Plant-Environment Signaling, Utrecht University, Padualaan 8, 3584 CH, Utrecht, the Netherlands
| | - Anna Finkers-Tomczak
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Pjotr Prins
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Debbie R Valkenburg-van Raaij
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Casper C van Schaik
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Hein Overmars
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Joris J M van Steenbrugge
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Wannes Tacken
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Koen Varossieau
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Erik J Slootweg
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Iris F Kappers
- Laboratory of Plant Physiology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, F-06903, Sophia Antipolis, France
| | - Aska Goverse
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Mark G Sterken
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
| | - Geert Smant
- Laboratory of Nematology, Department of Plant Sciences, Wageningen University & Research, Droevendaalsesteeg 1, 6708 PB, Wageningen, the Netherlands
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Klingebiel M, Arsov C, Ullrich T, Quentin M, Al-Monajjed R, Mally D, Sawicki LM, Hiester A, Esposito I, Albers P, Antoch G, Schimmöller L. Data on the detection of clinically significant prostate cancer by magnetic resonance imaging (MRI)-guided targeted and systematic biopsy. Data Brief 2022; 45:108683. [DOI: 10.1016/j.dib.2022.108683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 08/06/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
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8
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Noureddine Y, Mejias J, da Rocha M, Thomine S, Quentin M, Abad P, Favery B, Jaubert-Possamai S. Copper microRNAs modulate the formation of giant feeding cells induced by the root knot nematode Meloidogyne incognita in Arabidopsis thaliana. New Phytol 2022; 236:283-295. [PMID: 35801827 DOI: 10.1111/nph.18362] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Root-knot nematodes (RKNs) are root endoparasites that induce the dedifferentiation of a few root cells and the reprogramming of their gene expression to generate giant hypermetabolic feeding cells. We identified two microRNA families, miR408 and miR398, as upregulated in Arabidopsis thaliana and Solanum lycopersicum roots infected by RKNs. In plants, the expression of these two conserved microRNA families is known to be activated by the SPL7 transcription factor in response to copper starvation. By combining functional approaches, we deciphered the network involving these microRNAs, their regulator and their targets. MIR408 expression was located within nematode-induced feeding cells like its regulator SPL7 and was regulated by copper. Moreover, infection assays with mir408 and spl7 knockout mutants or lines expressing targets rendered resistant to cleavage by miR398 demonstrated the essential role of the SPL7/MIR408/MIR398 module in the formation of giant feeding cells. Our findings reveal how perturbation of plant copper homeostasis, via the SPL7/MIR408/MIR398 module, modulates the development of nematode-induced feeding cells.
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Affiliation(s)
- Yara Noureddine
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Joffrey Mejias
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Martine da Rocha
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Sébastien Thomine
- Institute for Integrative Biology of the Cell (I2BC), UMR9198 CNRS/CEA/Univ. Paris Sud, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Pierre Abad
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Bruno Favery
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
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9
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Mejias J, Chen Y, Bazin J, Truong NM, Mulet K, Noureddine Y, Jaubert-Possamai S, Ranty-Roby S, Soulé S, Abad P, Crespi MD, Favery B, Quentin M. Silencing the conserved small nuclear ribonucleoprotein SmD1 target gene alters susceptibility to root-knot nematodes in plants. Plant Physiol 2022; 189:1741-1756. [PMID: 35385078 PMCID: PMC9237699 DOI: 10.1093/plphys/kiac155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 03/08/2022] [Indexed: 06/01/2023]
Abstract
Root-knot nematodes (RKNs) are among the most damaging pests of agricultural crops. Meloidogyne is an extremely polyphagous genus of nematodes that can infect thousands of plant species. A few genes for resistance (R-genes) to RKN suitable for use in crop breeding have been identified, but virulent strains and species of RKN have emerged that render these R-genes ineffective. Secretion of RKN effectors targeting plant functions mediates the reprogramming of root cells into specialized feeding cells, the giant cells, essential for RKN development and reproduction. Conserved targets among plant species define the more relevant strategies for controlling nematode infection. The EFFECTOR18 (EFF18) protein from M. incognita interacts with the spliceosomal small nuclear ribonucleoprotein D1 (SmD1) in Arabidopsis (Arabidopsis thaliana), disrupting its function in alternative splicing regulation and modulating the giant cell transcriptome. We show here that EFF18 is a conserved RKN-specific effector that targets this conserved spliceosomal SmD1 protein in Solanaceae. This interaction modulates alternative splicing events produced by tomato (Solanum lycopersicum) in response to M. incognita infection. The alteration of SmD1 expression by virus-induced gene silencing in Solanaceae affects giant cell formation and nematode development. Thus, our work defines a promising conserved SmD1 target gene to develop broad resistance for the control of Meloidogyne spp. in plants.
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Affiliation(s)
| | | | - Jérémie Bazin
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Universités Paris Saclay, Evry, Université de Paris, 91192 Gif sur Yvette, France
| | | | - Karine Mulet
- INRAE, Université Côte d’Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Yara Noureddine
- INRAE, Université Côte d’Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | | | - Sarah Ranty-Roby
- INRAE, Université Côte d’Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Salomé Soulé
- INRAE, Université Côte d’Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Pierre Abad
- INRAE, Université Côte d’Azur, CNRS, ISA, F-06903 Sophia Antipolis, France
| | - Martin D Crespi
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Universités Paris Saclay, Evry, Université de Paris, 91192 Gif sur Yvette, France
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Boschheidgen M, Schimmöller L, Doerfler S, Al-Monajjed R, Morawitz J, Ziayee F, Mally D, Quentin M, Arsov C, Albers P, Antoch G, Ullrich T. Single center analysis of an advisable control interval for follow-up of patients with PI-RADS category 3 in multiparametric MRI of the prostate. Sci Rep 2022; 12:6746. [PMID: 35469056 PMCID: PMC9038748 DOI: 10.1038/s41598-022-10859-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/05/2022] [Indexed: 11/09/2022] Open
Abstract
To evaluate if follow-up mpMRI scans of patients in PI-RADS category 3 are safe enough to omit or delay prostate biopsy in the future and to determine an optimal control interval. This retrospective single center study includes consecutive PI-RADS category 3 patients with one or more follow-up mpMRI (T2WI, DWI, DCE) and subsequent MRI-targeted and systematic TRUS-guided biopsy between 2012 and 2018. Primary study objective was the verification of a significant PI-RADS category upgrade in follow-up mpMRI in patients with subsequent PCA positive biopsy versus patients with negative biopsy. Further objectives were development of the PI-RADS category and clinical parameters between initial and follow-up mpMRI in the context of histopathologic results and time interval. Eighty-nine patients (median PSA 6.6 ng/ml; PSAD 0.13 ng/ml/ml) were finally included (follow-up period 31 ± 18 months). 19 cases had PCA (median PSA 7.8 ng/ml; PSAD 0.14 ng/ml/ml). 4 cases had csPCA (median PSA 5.4 ng/ml; PSAD 0.13 ng/ml/ml) for which there was a significant PI-RADS upgrade after 12-24 months (mean 3.75; p = 0.01) compared to patients without PCA (mean 2.74). Without PCA the mean PI-RADS category decreased after 25-36 months (mean 2.74; p = 0.02). Clinical parameters did not change significantly except a PSAD increase for PCA patients after 24 months. Patients within PI-RADS category 3 may not need prompt biopsy since those with PCA reliably demonstrate a PI-RADS category upgrade in follow-up mpMRI after 12-24 months. PI-RADS 3 patients with negative biopsy do not benefit from follow-up mpMRI earlier than 24 months.
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Affiliation(s)
- M Boschheidgen
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - L Schimmöller
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany.
| | - S Doerfler
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - R Al-Monajjed
- Department of Urology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - J Morawitz
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - F Ziayee
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - D Mally
- Department of Urology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - M Quentin
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - C Arsov
- Department of Urology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - P Albers
- Department of Urology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - G Antoch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
| | - T Ullrich
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, 40225, Düsseldorf, Germany
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11
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Valentin B, Arsov C, Ullrich T, Demetrescu D, Morawitz J, Al-Monajjed R, Quentin M, Kirchner J, Esposito I, Albers P, Antoch G, Schimmöller L. Comparison of 3 T mpMRI and pelvic CT examinations for detection of lymph node metastases in patients with prostate cancer. Eur J Radiol 2022; 147:110110. [DOI: 10.1016/j.ejrad.2021.110110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/19/2021] [Accepted: 12/12/2021] [Indexed: 01/21/2023]
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12
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Zhao J, Sun Q, Quentin M, Ling J, Abad P, Zhang X, Li Y, Yang Y, Favery B, Mao Z, Xie B. A Meloidogyne incognita C-type lectin effector targets plant catalases to promote parasitism. New Phytol 2021; 232:2124-2137. [PMID: 34449897 DOI: 10.1111/nph.17690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/06/2021] [Accepted: 08/20/2021] [Indexed: 05/27/2023]
Abstract
Root-knot nematodes, Meloidogyne spp., secrete effectors to modulate plant immune responses and establish a parasitic relationship with host plants. However, the functions and plant targets of C-type lectin (CTL)-like effectors of Meloidogyne incognita remain unknown. Here, we characterized a CTL-like effector of M. incognita, MiCTL1a, and identified its target and role in nematode parasitism. In situ hybridization demonstrated the expression of MiCTL1 in the subventral glands; and in planta, immunolocalization showed its secretion during M. incognita parasitism. Virus-induced gene silencing of the MiCTL1 reduced the infection ability of M. incognita in Nicotiana benthamiana. The ectopic expression in Arabidopsis not only increased susceptibility to M. incognita but also promoted root growth. Yeast two-hybrid and co-immunoprecipitation assays revealed that MiCTL1a interacts with Arabidopsis catalases, which play essential roles in hydrogen peroxide homeostasis. Knockout or overexpression of catalases showed either increased or reduced susceptibility to M. incognita, respectively. Moreover, MiCTL1a not only reduced catalase activity in vitro and in planta but also modulated stress-related gene expressions in Arabidopsis. Our data suggest that MiCTL1a interacts with plant catalases and interferes with catalase activity, allowing M. incognita to establish a parasitic relationship with its host by fine-tuning responses mediated by reactive oxygen species.
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Affiliation(s)
- Jianlong Zhao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Qinghua Sun
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Michaël Quentin
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Jian Ling
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Pierre Abad
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Xiaoping Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
- Chifeng University, Chifeng, Inner Mongolia, 024099, China
| | - Yan Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Yuhong Yang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Bruno Favery
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Zhenchuan Mao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Bingyan Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
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Valentin B, Schimmöller L, Ullrich T, Klingebiel M, Demetrescu D, Sawicki LM, Lakes J, Mally D, Quentin M, Esposito I, Albers P, Antoch G, Arsov C. Magnetic resonance imaging improves the prediction of tumor staging in localized prostate cancer. Abdom Radiol (NY) 2021; 46:2751-2759. [PMID: 33452898 PMCID: PMC8205913 DOI: 10.1007/s00261-020-02913-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 08/30/2020] [Revised: 12/07/2020] [Accepted: 12/11/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVES The aim of this study was to investigate 3 Tesla multiparametric magnetic resonance imaging (mpMRI)-based predictors for the pretherapeutic T staging of prostate cancer and their accuracy. METHODS Consecutive patients with 3 Tesla mpMRI, positive systematic and MR-targeted biopsy, and subsequent radical prostatectomy (RPE) between 01/2016 and 12/2017 were included. MRI parameters such as measurable extraprostatic extension (EPE) (≥ 3 mm), length of (pseudo)capsular contact (LCC), invasion of neurovascular bundle (NVBI), and/or seminal vesicles lesion contact (SVC) or infiltration (SVI) were assessed and correlated to clinical and histopathological results. RESULTS 136 men were included. In 76 cases, a pT2 stage was determined, in 29 cases a pT3a, and in 31 a pT3b stage. The positive and negative predictive values (PPV, NPV) for the detection of T3 by measurable EPE on MRI was 98% (CI 0.88-1) and 81% (CI 0.72-0.87). No visible NVBI was found in pT2 patients (NPV 100%; CI 0.95-1). ROC analysis for T3a prediction with LCC (AUC 0.81) showed a sensitivity of 87% and a specificity of 62% at a threshold of 12.5 mm (J = 0.485) and 93% and 58% at 11 mm (Jmax = 0.512). All patients with pT3a had a LCC > 5 mm. In case of pT3b, 29/31 patients showed a SVC (PPV 76%, CI 0.61-0.87; NPV 98%, CI 0.93-0.99), and 23/31 patients showed a SVI (PPV 100%, CI 0.86-1; NPV 93%, CI 0.87-0.96). EPE (p < 0.01), LCC (p = 0.05), and SVC (p = 0.01) were independent predictors of pT3. CONCLUSIONS MRI-measurable EPE, LCC, and SVC were reliable, independent, preoperative predictors for a histopathological T3 stage. A LCC ≥ 11 mm indicated a pT3a stage, whereas a LCC < 5 mm excluded it. On MRI, visible SVI or even SVC of the PCa lesion was reliable preoperative predictors for a pT3b stage.
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Affiliation(s)
- B. Valentin
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - L. Schimmöller
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - T. Ullrich
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - M. Klingebiel
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - D. Demetrescu
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - L. M. Sawicki
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - J. Lakes
- Department of Urology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - D. Mally
- Department of Urology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - M. Quentin
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - I. Esposito
- Department of Pathology, Medical Faculty, University Dusseldorf, 40225 Dusseldorf, Germany
| | - P. Albers
- Department of Urology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - G. Antoch
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
| | - C. Arsov
- Department of Urology, Medical Faculty, University Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany
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14
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Mejias J, Bazin J, Truong NM, Chen Y, Marteu N, Bouteiller N, Sawa S, Crespi MD, Vaucheret H, Abad P, Favery B, Quentin M. The root-knot nematode effector MiEFF18 interacts with the plant core spliceosomal protein SmD1 required for giant cell formation. New Phytol 2021; 229:3408-3423. [PMID: 33206370 DOI: 10.1111/nph.17089] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/16/2020] [Accepted: 11/12/2020] [Indexed: 05/11/2023]
Abstract
The root-knot nematode Meloidogyne incognita secretes specific effectors (MiEFF) and induces the redifferentiation of plant root cells into enlarged multinucleate feeding 'giant cells' essential for nematode development. Immunolocalizations revealed the presence of the MiEFF18 protein in the salivary glands of M. incognita juveniles. In planta, MiEFF18 localizes to the nuclei of giant cells demonstrating its secretion during plant-nematode interactions. A yeast two-hybrid approach identified the nuclear ribonucleoprotein SmD1 as a MiEFF18 partner in tomato and Arabidopsis. SmD1 is an essential component of the spliceosome, a complex involved in pre-mRNA splicing and alternative splicing. RNA-seq analyses of Arabidopsis roots ectopically expressing MiEFF18 or partially impaired in SmD1 function (smd1b mutant) revealed the contribution of the effector and its target to alternative splicing and proteome diversity. The comparison with Arabidopsis galls data showed that MiEFF18 modifies the expression of genes important for giant cell ontogenesis, indicating that MiEFF18 modulates SmD1 functions to facilitate giant cell formation. Finally, Arabidopsis smd1b mutants exhibited less susceptibility to M. incognita infection, and the giant cells formed on these mutants displayed developmental defects, suggesting that SmD1 plays an important role in the formation of giant cells and is required for successful nematode infection.
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Affiliation(s)
- Joffrey Mejias
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Jérémie Bazin
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Universités Paris Saclay - Evry, Université de Paris, Gif sur Yvette, 91192, France
| | - Nhat-My Truong
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, 860-11 8555, Japan
| | - Yongpan Chen
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
| | - Nathalie Marteu
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Nathalie Bouteiller
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, 78000, France
| | - Shinichiro Sawa
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, 860-11 8555, Japan
| | - Martin D Crespi
- Institute of Plant Sciences Paris-Saclay (IPS2), CNRS, INRA, Universités Paris Saclay - Evry, Université de Paris, Gif sur Yvette, 91192, France
| | - Hervé Vaucheret
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, Versailles, 78000, France
| | - Pierre Abad
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Bruno Favery
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
| | - Michaël Quentin
- INRAE, Université Côte d'Azur, CNRS, ISA, Sophia Antipolis, F-06903, France
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Klingebiel M, Arsov C, Ullrich T, Quentin M, Al-Monajjed R, Mally D, Sawicki LM, Hiester A, Esposito I, Albers P, Antoch G, Schimmöller L. Reasons for missing clinically significant prostate cancer by targeted magnetic resonance imaging/ultrasound fusion-guided biopsy. Eur J Radiol 2021; 137:109587. [PMID: 33592552 DOI: 10.1016/j.ejrad.2021.109587] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES This study evaluates cases with clinically significant prostate cancer (csPCa) missed by targeted biopsy (TB) and analyzes the diagnostic impact of an additional systematic biopsy (SB) in a large patient collective. METHODS Consecutive patients with a 3 T multiparametric prostate MRI (mpMRI) and a subsequent MRI/US fusion-guided TB plus 12-core US-guided SB from 01/2014 to 04/2019 were included in this study. Primary study endpoint was the analysis of cases with a csPCa missed by TB and detected by SB. Secondary study objectives were the PCa detection and the correlation with clinical and MRI parameters. RESULTS In total 785 patients met the inclusion criteria. 342 patients had a csPCa (median PSAD 0.29 ng/mL/cm3). In 42 patients (13 %), a csPCa was detected only by SB. In 36 of these cases, the localization of the positive SB cores matched with the cancer suspicious region described on mpMRI (mCSR). Cases with a csPCA missed by TB showed either an insufficient MRI segmentation (prostate boundary correlation) (31 %) and/or insufficient lesion registration (lesion transfer, tracking, and/or matching) (48 %), a missed small lesion (14 %), or a failed center of a large lesion (10 %). Median PSAD of patients with non-significant PCa detected by SB was 0.15 ng/mL/cm3. CONCLUSIONS Main reasons for missing a csPCa by TB were insufficient prostate segmentation or imprecise lesion registration within MRI/US fusion-guided biopsy. Consequently, verification of MRI quality, exact mCSR assessment, and advanced biopsy experience may improve accuracy. Altogether, an additional SB adds limited clinical benefit in men with PSAD ≤ 0.15 ng/mL/cm3.
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Affiliation(s)
- M Klingebiel
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - C Arsov
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - T Ullrich
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - M Quentin
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - R Al-Monajjed
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - D Mally
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - L M Sawicki
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - A Hiester
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - I Esposito
- University Dusseldorf, Medical Faculty, Department of Pathology, D-40225 Dusseldorf, Germany.
| | - P Albers
- University Dusseldorf, Medical Faculty, Department of Urology, D-40225 Dusseldorf, Germany.
| | - G Antoch
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
| | - L Schimmöller
- University Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, D-40225 Dusseldorf, Germany.
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Truong NM, Chen Y, Mejias J, Soulé S, Mulet K, Jaouannet M, Jaubert-Possamai S, Sawa S, Abad P, Favery B, Quentin M. The Meloidogyne incognita Nuclear Effector MiEFF1 Interacts With Arabidopsis Cytosolic Glyceraldehyde-3-Phosphate Dehydrogenases to Promote Parasitism. Front Plant Sci 2021; 12:641480. [PMID: 33897729 PMCID: PMC8062903 DOI: 10.3389/fpls.2021.641480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/22/2021] [Indexed: 05/03/2023]
Abstract
Root-knot nematodes are obligate endoparasites that maintain a biotrophic relationship with their hosts over a period of several weeks. They induce the differentiation of root cells into specialized multinucleate hypertrophied feeding cells known as giant cells. Nematode effectors synthesized in the esophageal glands and injected into the plant tissue through the syringe-like stylet play a key role in giant cell ontogenesis. The Meloidogyne incognita MiEFF1 is one of the rare effectors of phytopathogenic nematodes to have been located in vivo in feeding cells. This effector specifically targets the giant cell nuclei. We investigated the Arabidopsis functions modulated by this effector, by using a yeast two-hybrid approach to identify its host targets. We characterized a universal stress protein (USP) and cytosolic glyceraldehyde-3-phosphate dehydrogenases (GAPCs) as the targets of MiEFF1. We validated the interaction of MiEFF1 with these host targets in the plant cell nucleus, by bimolecular fluorescence complementation (BiFC). A functional analysis with Arabidopsis GUS reporter lines and knockout mutant lines showed that GAPCs were induced in giant cells and that their non-metabolic functions were required for root-knot nematode infection. These susceptibility factors are potentially interesting targets for the development of new root-knot nematode control strategies.
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Affiliation(s)
- Nhat My Truong
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Yongpan Chen
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Joffrey Mejias
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
| | - Salomé Soulé
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
| | - Karine Mulet
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
| | - Maëlle Jaouannet
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
| | | | - Shinichiro Sawa
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
| | - Pierre Abad
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
| | - Bruno Favery
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
- *Correspondence: Michaël Quentin, ; Bruno Favery,
| | - Michaël Quentin
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d’Azur, Sophia Antipolis, France
- *Correspondence: Michaël Quentin, ; Bruno Favery,
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17
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Zhao J, Mejias J, Quentin M, Chen Y, de Almeida-Engler J, Mao Z, Sun Q, Liu Q, Xie B, Abad P, Favery B, Jian H. The root-knot nematode effector MiPDI1 targets a stress-associated protein (SAP) to establish disease in Solanaceae and Arabidopsis. New Phytol 2020; 228:1417-1430. [PMID: 32542658 DOI: 10.1111/nph.16745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 04/09/2020] [Accepted: 06/02/2020] [Indexed: 05/11/2023]
Abstract
Large amounts of effectors are secreted by the oesophageal glands of plant-parasitic nematodes, but their molecular mode of action remains largely unknown. We characterized a Meloidogyne incognita protein disulphide isomerase (PDI)-like effector protein (MiPDI1) that facilitates nematode parasitism. In situ hybridization showed that MiPDI1 was expressed specifically in the subventral glands of M. incognita. It was significantly upregulated during parasitic stages. Immunolocalization demonstrated MiPDI1 secretion in planta during nematode migration and within the feeding cells. Host-induced silencing of the MiPDI1 gene affected the ability of the nematode to infect the host, whereas MiPDI1 expression in Arabidopsis increased susceptibility to M. incognita, providing evidence for a key role of MiPDI1 in M. incognita parasitism. Yeast two-hybrid, bimolecular fluorescence complementation and coimmunoprecipitation assays showed that MiPDI1 interacted with a tomato stress-associated protein (SlSAP12) orthologous to the redox-regulated AtSAP12, which plays an important role in plant responses to abiotic and biotic stresses. SAP12 silencing or knocking out in Nicotiana benthamiana and Arabidopsis increased susceptibility to M. incognita. Our results suggest that MiPDI1 acts as a pathogenicity factor promoting disease by fine-tuning SAP-mediated responses at the interface of redox signalling, defence and stress acclimation in Solanaceae and Arabidopsis.
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Affiliation(s)
- Jianlong Zhao
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Joffrey Mejias
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Michaël Quentin
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Yongpan Chen
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | | | - Zhenchuan Mao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Qinghua Sun
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Qian Liu
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
| | - Bingyan Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Science, Beijing, 100081, China
| | - Pierre Abad
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Bruno Favery
- INRAE, CNRS, ISA, Université Côte d'Azur, Sophia Antipolis, F-06903, France
| | - Heng Jian
- Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
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Klingebiel M, Ullrich T, Quentin M, Bonekamp D, Aissa J, Mally D, Arsov C, Albers P, Antoch G, Schimmöller L. Advanced diffusion weighted imaging of the prostate: Comparison of readout-segmented multi-shot, parallel-transmit and single-shot echo-planar imaging. Eur J Radiol 2020; 130:109161. [DOI: 10.1016/j.ejrad.2020.109161] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 01/21/2023]
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Ullrich T, Arsov C, Quentin M, Mones F, Westphalen AC, Mally D, Hiester A, Albers P, Antoch G, Schimmöller L. Multiparametric magnetic resonance imaging can exclude prostate cancer progression in patients on active surveillance: a retrospective cohort study. Eur Radiol 2020; 30:6042-6051. [PMID: 32591887 PMCID: PMC7553894 DOI: 10.1007/s00330-020-06997-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/31/2020] [Accepted: 05/29/2020] [Indexed: 12/30/2022]
Abstract
Objectives To assess the ability of multiparametric MRI (mp-MRI) of the prostate to exclude prostate cancer (PCa) progression during monitoring patients on active surveillance (AS). Methods One hundred forty-seven consecutive patients on AS with mp-MRI (T2WI, DWI, DCE-MRI) at 3T were initially enrolled. Fifty-five received follow-up mp-MRI after a minimum interval of 12 months and subsequent targeted MR/US fusion-guided biopsy (FUS-GB) plus concurrent systematic transrectal ultrasound-guided (TRUS-GB) biopsy as reference standard. Primary endpoint was the negative predictive value (NPV) of the follow-up mp-MRI to exclude histopathologic tumor progression using PRECISE recommendations. Secondary endpoints were the positive predictive value (PPV), sensitivity, specificity, Gleason score (GS) upgrades, and comparison of biopsy method. Results Of 55 patients, 29 (53%) had a GS upgrade on re-biopsy. All 29 patients showed a tumor progression on follow-up mp-MRI. Fifteen of 55 patients (27%) displayed signs of tumor progression, but had stable GS on re-biopsy. None of the 11 patients (20%) without signs of progression on follow-up mp-MRI had a GS upgrade on re-biopsy. The NPV was 100%, PPV was 66%, sensitivity was 100%, and specificity 42%. FUS-GB resulted in GS upgrade significantly more often (n = 28; 51%) compared with TRUS-GB (n = 12; 22%; p < 0.001). Conclusions (Follow-up) Mp-MRI can reliably exclude PCa progression in patients on AS. Standard serial re-biopsies might be waived if follow-up mp-MRIs are stable. Over 60% of patients with signs of tumor progression on mp-MRI during AS had a GS upgrade on re-biopsy. Targeted re-biopsies should be performed if cancer progression or higher-grade PCa is suspected on mp-MRI. Key Points • None of the patients with unsuspicious mp-MRI had a GS upgrade in re-biopsy and mp-MRI might replace serial biopsies in these cases • More than 60% of patients with mp-MRI signs of tumor progression had subsequent Gleason score (GS) upgrades • Targeted re-biopsies should be performed in case of higher GS cancer suspicion on mp-MRI
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Affiliation(s)
- T Ullrich
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, 40225, Dusseldorf, Germany.,Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, M-392, San Francisco, CA, 94143-0628, USA
| | - C Arsov
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany.
| | - M Quentin
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, 40225, Dusseldorf, Germany
| | - F Mones
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, 40225, Dusseldorf, Germany
| | - A C Westphalen
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, 505 Parnassus Ave, M-392, San Francisco, CA, 94143-0628, USA
| | - D Mally
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany
| | - A Hiester
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany
| | - P Albers
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany
| | - G Antoch
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, 40225, Dusseldorf, Germany
| | - L Schimmöller
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, 40225, Dusseldorf, Germany
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Mejias J, Truong NM, Abad P, Favery B, Quentin M. Plant Proteins and Processes Targeted by Parasitic Nematode Effectors. Front Plant Sci 2019; 10:970. [PMID: 31417587 PMCID: PMC6682612 DOI: 10.3389/fpls.2019.00970] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/11/2019] [Indexed: 05/17/2023]
Abstract
Sedentary endoparasitic nematodes, such as root-knot nematodes (RKN; Meloidogyne spp.) and cyst nematodes (CN; Heterodera spp. and Globodera spp.) cause considerable damage to agricultural crops. RKN and CN spend most of their life cycle in plant roots, in which they induce the formation of multinucleate hypertrophied feeding cells, called "giant cells" and "syncytia," respectively. The giant cells result from nuclear divisions of vascular cells without cytokinesis. They are surrounded by small dividing cells and they form a new organ within the root known as a root knot or gall. CN infection leads to the fusion of several root cells into a unique syncytium. These dramatically modified host cells act as metabolic sinks from which the nematode withdraws nutrients throughout its life, and they are thus essential for nematode development. Both RKN and CN secrete effector proteins that are synthesized in the oesophageal glands and delivered to the appropriate cell in the host plant via a syringe-like stylet, triggering the ontogenesis of the feeding structures. Within the plant cell or in the apoplast, effectors associate with specific host proteins, enabling them to hijack important processes for cell morphogenesis and physiology or immunity. Here, we review recent findings on the identification and functional characterization of plant targets of RKN and CN effectors. A better understanding of the molecular determinants of these biotrophic relationships would enable us to improve the yields of crops infected with parasitic nematodes and to expand our comprehension of root development.
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Affiliation(s)
| | | | | | | | - Michaël Quentin
- Centre National de la Recherche Scientifique, Institut National de la Recherche Agronomique, Institut Sophia Agrobiotech, Université Côte d’Azur, Sophia Antipolis, France
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Quentin M, Arsov C, Ullrich T, Valentin B, Hiester A, Blondin D, Albers P, Antoch G, Schimmöller L. Comparison of analgesic techniques in MRI-guided in-bore prostate biopsy. Eur Radiol 2019; 29:6965-6970. [PMID: 31250168 DOI: 10.1007/s00330-019-06301-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 04/27/2019] [Accepted: 06/04/2019] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To evaluate different analgesic techniques in MRI-guided in-bore prostate biopsy (IB-GB) regarding the influence on patient procedural experience of pain. METHODS Two hundred fifty-two consecutive patients who had received an IB-GB either with intrarectal instillation of 2% lidocaine gel (n = 126, group A) or with periprostatic nerve block (PPNB) with 2% mepivacaine (n = 126, group B) were retrospectively included in this study. Pain scores were measured on a visual analog scale, the operating room time (ORT) was recorded for each biopsy and correlations between the parameters were analysed. RESULTS Pain scores for IB-GB were slightly lower in group B compared with group A (2.0 ± 1.9; 2.4 ± 1.7; p = 0.02). In group A, significantly more targeted biopsy cores were acquired (group B: 5.2 ± 1.1; group A: 5.6 ± 0.8; p < 0.01). ORT was comparable and not significantly different in both groups. There was only a weak correlation between pain scores and ORT in group B (rS = 0.22; p = 0.01), but no correlation between pain scores and the number of biopsy cores or the prostate volume. CONCLUSIONS Pain levels are generally low for MRI-guided in-bore biopsy using either PPNB or intrarectal instillation of lidocaine gel. A statistically significant, slightly lower pain score was documented for PPNB and might be preferred when the focus is analgesia. On the other hand, due to the minor difference and easier administration, intrarectal gel instillation seems to be a reasonable practice for standard analgesia for MRI-guided in-bore biopsy. KEY POINTS • Pain levels were low for MRI-guided in-bore biopsy using either PPNB or intrarectal instillation of lidocaine gel as analgesic method. • PPNB prior to IB-GB resulted in a slightly lower pain score but required a higher effort. • Intrarectal gel anaesthesia seems to be a reasonable practice for standard analgesia for IB-GB in an outpatient setting.
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Affiliation(s)
- M Quentin
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - C Arsov
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225, Dusseldorf, Germany
| | - T Ullrich
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - B Valentin
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - A Hiester
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225, Dusseldorf, Germany
| | - D Blondin
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - P Albers
- Department of Urology, University Dusseldorf, Medical Faculty, D-40225, Dusseldorf, Germany
| | - G Antoch
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - L Schimmöller
- Department of Diagnostic and Interventional Radiology, University Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225, Dusseldorf, Germany.
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Ullrich T, Arsov C, Quentin M, Laqua N, Klingebiel M, Martin O, Hiester A, Blondin D, Rabenalt R, Albers P, Antoch G, Schimmöller L. Analysis of PI-RADS 4 cases: Management recommendations for negatively biopsied patients. Eur J Radiol 2019; 113:1-6. [PMID: 30927932 DOI: 10.1016/j.ejrad.2019.01.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/23/2019] [Accepted: 01/28/2019] [Indexed: 01/21/2023]
Abstract
PURPOSE To evaluate if subgroups of patients assigned to MRI category PI-RADS 4 regarding clinical and MRI imaging aspects have distinct risks of prostate cancer (PCa) to facilitate adequate clinical management of this population, especially after negative targeted biopsy. METHODS This prospective, IRB approved single center cross-sectional study includes 931 consecutive patients after mp-MRI at 3 T for PCa detection. 193 patients with PI-RADS assessment category 4 received subsequent combined targeted MRI/US fusion-guided and systematic 12-core TRUS-guided biopsy as reference standard and were finally analyzed. The primary endpoint was PCa detection of PI-RADS 4 with MRI subgroup analyses. Secondary endpoints were analyses of clinical data, location of PCa, and detection of targeted biopsy cores. RESULTS PCa was detected in 119 of 193 patients (62%) including clinically significant PCa (csPCa; Gleason score ≥3 + 4 = 7) in 92 patients (48%). MRI subgroup analysis revealed 95% PCa (73% csPCa) in unambiguous PI-RADS 4 index lesions without additional, interfering signs of prostatitis in the peripheral zone or overlaying signs of severe stromal hyperplasia in the transition zone according to PI-RADS v2. Transition zone confined PI-RADS-4-lesions with overlaying signs of stromal hyperplasia showed PCa only in 11% (4% csPCa). Targeted biopsy cores missed the csPCa index lesion in 7% of the patients. PSA density (PSAD) was significantly higher in PCa patients. CONCLUSIONS Small csPCa can reliably be detected with mp-MRI by experienced readers, but can be missed by targeted MR/US fusion biopsy alone. Targeted re-biopsy of unambiguous (peripheral) PI-RADS-4-lesions is recommended; whereas transition zone confined PI-RADS-4-lesions with overlaying signs of stromal hyperplasia might be followed-up by re-MRI primarily.
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Affiliation(s)
- T Ullrich
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - C Arsov
- Department of Urology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - M Quentin
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - N Laqua
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - M Klingebiel
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - O Martin
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - A Hiester
- Department of Urology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - D Blondin
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - R Rabenalt
- Department of Urology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - P Albers
- Department of Urology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - G Antoch
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - L Schimmöller
- Department of Diagnostic and Interventional Radiology, Univ Dusseldorf, Medical Faculty, Moorenstr. 5, D-40225 Dusseldorf, Germany.
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Allasia V, Industri B, Ponchet M, Quentin M, Favery B, Keller H. Quantification of Salicylic Acid (SA) and SA-glucosides in Arabidopsis thaliana. Bio Protoc 2018; 8:e2844. [PMID: 34285965 DOI: 10.21769/bioprotoc.2844] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 04/17/2018] [Accepted: 05/09/2018] [Indexed: 11/02/2022] Open
Abstract
Homeostasis between the cytoplasmic plant hormone salicylic acid (SA) and its' inactive, vacuolar storage forms, SA-2-O-β-D-glucoside (SAG) and SA-β-D-Glucose Ester (SGE), regulates the fine-tuning of defense responses to biotrophic pathogens in Arabidopsis thaliana. This protocol describes a simplified, optimized procedure to extract and quantify free SA and total hydrolyzable SA in plant tissues using a classical HPLC-based method.
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Affiliation(s)
- Valérie Allasia
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Benoit Industri
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Michel Ponchet
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Michaël Quentin
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Bruno Favery
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
| | - Harald Keller
- INRA, Université Côte d'Azur, CNRS, Institut Sophia Agrobiotech, Sophia-Antipolis, France
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Jaouannet M, Nguyen CN, Quentin M, Jaubert-Possamai S, Rosso MN, Favery B. In situ Hybridization (ISH) in Preparasitic and Parasitic Stages of the Plant-parasitic Nematode Meloidogyne spp. Bio Protoc 2018; 8:e2766. [PMID: 34179286 DOI: 10.21769/bioprotoc.2766] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/27/2018] [Accepted: 03/20/2018] [Indexed: 11/02/2022] Open
Abstract
The spatio-temporal expression pattern of a gene provides important indications to better understand its biological function. In situ hybridization (ISH) uses a labeled complementary single-stranded RNA or DNA probe to localize gene transcripts in a whole organism, a whole organ or a section of tissue. We adapted the ISH technique to the plant parasite Meloidogyne spp. (root-knot nematode) to visualize RNAs both in free-living preparasitic juveniles and in parasitic stages settled in the plant tissues. We describe each step of the probe synthesis, digoxigenin (DIG) labeling, nematode extraction from plant tissue, and ISH procedure.
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Affiliation(s)
- Maëlle Jaouannet
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, Sophia-Antipolis, France
| | - Chinh-Nghia Nguyen
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, Sophia-Antipolis, France
| | - Michaël Quentin
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, Sophia-Antipolis, France
| | | | - Marie-Noëlle Rosso
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, Sophia-Antipolis, France
| | - Bruno Favery
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, Sophia-Antipolis, France
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25
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Nguyen CN, Perfus-Barbeoch L, Quentin M, Zhao J, Magliano M, Marteu N, Da Rocha M, Nottet N, Abad P, Favery B. A root-knot nematode small glycine and cysteine-rich secreted effector, MiSGCR1, is involved in plant parasitism. New Phytol 2018; 217:687-699. [PMID: 29034957 DOI: 10.1111/nph.14837] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 07/19/2017] [Accepted: 09/01/2017] [Indexed: 05/08/2023]
Abstract
Root-knot nematodes, Meloidogyne spp., are obligate endoparasites that maintain a biotrophic relationship with their hosts. They infect roots as microscopic vermiform second-stage juveniles, and establish specialized feeding structures called 'giant-cells', from which they withdraw water and nutrients. The nematode effector proteins secreted in planta are key elements in the molecular dialogue of parasitism. Here, we compared Illumina RNA-seq transcriptomes for M. incognita obtained at various points in the lifecycle, and identified 31 genes more strongly expressed in parasitic stages than in preparasitic juveniles. We then selected candidate effectors for functional characterization. Quantitative real-time PCR and in situ hybridizations showed that the validated differentially expressed genes are predominantly specifically expressed in oesophageal glands of the nematode. We also soaked the nematodes in siRNA to silence these genes and to determine their role in pathogenicity. The silencing of the dorsal gland specific-Minc18876 and its paralogues resulted in a significant, reproducible decrease in the number of mature females with egg masses, demonstrating a potentially important role for the small glycine- and cysteine-rich effector MiSGCR1 in early stages of plant-nematode interaction. Finally, we report that MiSGCR1 suppresses plant cell death induced by bacterial or oomycete triggers of plant defense.
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Affiliation(s)
- Chinh-Nghia Nguyen
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Laetitia Perfus-Barbeoch
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Michaël Quentin
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Jianlong Zhao
- Department of Plant Pathology and Key Laboratory of Plant Pathology of Ministry of Agriculture, China Agricultural University, Beijing, 100193, China
| | - Marc Magliano
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Nathalie Marteu
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Martine Da Rocha
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Nicolas Nottet
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Pierre Abad
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
| | - Bruno Favery
- INRA, Université Côte d'Azur, CNRS, ISA, 400 route des Chappes, 06903, Cedex Sophia-Antipolis, France
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Schimmöller L, Ullrich T, Dietzel F, Schmaltz A, Quentin M, Arsov C, Blondin D, Rabenalt R, Albers P, Antoch G. Benötigen Patienten mit einem PI-RADS-Gesamtscore 3 eine sofortige (Re-)Biopsie? ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- L Schimmöller
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - T Ullrich
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - F Dietzel
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - A Schmaltz
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - M Quentin
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - C Arsov
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - D Blondin
- Städtische Kliniken Mönchengladbach GmbH, Elisabeth-Krankenhaus Rheydt, Klinik für Radiologie, Gefäßradiologie und Nuklearmedizin, Mönchengladbach
| | - R Rabenalt
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - P Albers
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - G Antoch
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
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Ullrich T, Schimmöller L, Oelers C, Dietzel F, Arsov C, Rabenalt R, Albers P, Blondin D, Antoch G, Quentin M. Prospektiver Vergleich der Prostata-MRT bei 1,5 versus 3,0 Tesla. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- T Ullrich
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - L Schimmöller
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - C Oelers
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - F Dietzel
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - C Arsov
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - R Rabenalt
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - P Albers
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Urologische Klinik, Düsseldorf
| | - D Blondin
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - G Antoch
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
| | - M Quentin
- Heinrich-Heine-Universität Düsseldorf, Medizinische Fakultät, Institut für Diagnostische und Interventionelle Radiologie, Düsseldorf
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Quentin M. MR-gesteuerte Prostatabiopsie. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schimmöller L, Schimmöller L, Dietzel F, Ullrich T, Schleich C, Thomas C, Arsov C, Hiester A, Rabenalt R, Albers P, Blondin D, Antoch G, Quentin M. Gezielte MRT-gestützte Biopsie der Prostata: Ist mehr als ein Biopsiezylinder pro MRT-Läsion erforderlich? ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ullrich T, Schimmöller L, Oymanns M, Dietzel F, Blondin D, Antoch G, Quentin M. Die PROASK-Studie: Akzeptanz und Bewertung der multiparametrischen MRT in der Prostatakarzinomdiagnostik. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Quentin M, Baurès I, Hoefle C, Caillaud MC, Allasia V, Panabières F, Abad P, Hückelhoven R, Keller H, Favery B. The Arabidopsis microtubule-associated protein MAP65-3 supports infection by filamentous biotrophic pathogens by down-regulating salicylic acid-dependent defenses. J Exp Bot 2016; 67:1731-43. [PMID: 26798028 DOI: 10.1093/jxb/erv564] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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] [Indexed: 05/24/2023]
Abstract
The oomycete Hyaloperonospora arabidopsidis and the ascomycete Erysiphe cruciferarum are obligate biotrophic pathogens causing downy mildew and powdery mildew, respectively, on Arabidopsis. Upon infection, the filamentous pathogens induce the formation of intracellular bulbous structures called haustoria, which are required for the biotrophic lifestyle. We previously showed that the microtubule-associated protein AtMAP65-3 plays a critical role in organizing cytoskeleton microtubule arrays during mitosis and cytokinesis. This renders the protein essential for the development of giant cells, which are the feeding sites induced by root knot nematodes. Here, we show that AtMAP65-3 expression is also induced in leaves upon infection by the downy mildew oomycete and the powdery mildew fungus. Loss of AtMAP65-3 function in the map65-3 mutant dramatically reduced infection by both pathogens, predominantly at the stages of leaf penetration. Whole-transcriptome analysis showed an over-represented, constitutive activation of genes involved in salicylic acid (SA) biosynthesis, signaling, and defense execution in map65-3, whereas jasmonic acid (JA)-mediated signaling was down-regulated. Preventing SA synthesis and accumulation in map65-3 rescued plant susceptibility to pathogens, but not the developmental phenotype caused by cytoskeleton defaults. AtMAP65-3 thus has a dual role. It positively regulates cytokinesis, thus plant growth and development, and negatively interferes with plant defense against filamentous biotrophs. Our data suggest that downy mildew and powdery mildew stimulate AtMAP65-3 expression to down-regulate SA signaling for infection.
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Affiliation(s)
- Michaël Quentin
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Isabelle Baurès
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Caroline Hoefle
- Lehrstuhl für Phytopathologie, Technische Universität München, D-85350 Freising-Weihenstephan, Germany
| | - Marie-Cécile Caillaud
- The Sainsbury Laboratory, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Valérie Allasia
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Franck Panabières
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Pierre Abad
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Ralph Hückelhoven
- Lehrstuhl für Phytopathologie, Technische Universität München, D-85350 Freising-Weihenstephan, Germany
| | - Harald Keller
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Bruno Favery
- INRA, Université de Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
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Schimmöller L, Quentin M, Blondin D, Dietzel F, Hiester A, Schleich C, Thomas C, Rabenalt R, Gabbert HE, Albers P, Antoch G, Arsov C. Targeted MRI-guided prostate biopsy: are two biopsy cores per MRI-lesion required? Eur Radiol 2016; 26:3858-3864. [PMID: 26920391 DOI: 10.1007/s00330-016-4266-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Revised: 01/19/2016] [Accepted: 02/01/2016] [Indexed: 11/25/2022]
Abstract
PURPOSE This study evaluates the feasibility of performing less than two core biopsies per MRI-lesion when performing targeted MR-guided in-bore prostate biopsy. METHODS Retrospectively evaluated were 1545 biopsy cores of 774 intraprostatic lesions (two cores per lesion) in 290 patients (66 ± 7.8 years; median PSA 8.2 ng/ml) regarding prostate cancer (PCa) detection, Gleason score, and tumor infiltration of the first (FBC) compared to the second biopsy core (SBC). Biopsies were acquired under in-bore MR-guidance. RESULTS For the biopsy cores, 491 were PCa positive, 239 of 774 (31 %) were FBC and 252 of 771 (33 %) were SBC (p = 0.4). Patient PCa detection rate based on the FBC vs. SBC were 46 % vs. 48 % (p = 0.6). For clinically significant PCa (Gleason score ≥4 + 3 = 7) the detection rate was 18 % for both, FBC and SBC (p = 0.9). Six hundred and eighty-seven SBC (89 %) showed no histologic difference. On the lesion level, 40 SBC detected PCa with negative FBC (7.5 %). Twenty SBC showed a Gleason upgrade from 3 + 3 = 6 to ≥3 + 4 = 7 (2.6 %) and 4 to ≥4 + 3 = 7 (0.5 %). CONCLUSION The benefit of a second targeted biopsy core per suspicious MRI-lesion is likely minor, especially regarding PCa detection rate and significant Gleason upgrading. Therefore, a further reduction of biopsy cores is reasonable when performing a targeted MR-guided in-bore prostate biopsy. KEY POINTS • Higher PI-RADS overall score (IV-V) correlated well with PCa detection rate • In more than 80 % SBC was concordant regarding overall PCa detection • In almost 90 % there was no Gleason upgrading by the SBC • Only 2/54 (3.7 %) csPCa was missed when the SBC was omitted • For IB-GB a further reduction of biopsy cores is reasonable.
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Affiliation(s)
- L Schimmöller
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - M Quentin
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany.
| | - D Blondin
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - F Dietzel
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - A Hiester
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - C Schleich
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - C Thomas
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - R Rabenalt
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - H E Gabbert
- Medical Faculty, Department of Pathology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - P Albers
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - G Antoch
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
| | - C Arsov
- Medical Faculty, Department of Urology, University Dusseldorf, Moorenstr. 5, D-40225, Dusseldorf, Germany
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Favery B, Quentin M, Jaubert-Possamai S, Abad P. Gall-forming root-knot nematodes hijack key plant cellular functions to induce multinucleate and hypertrophied feeding cells. J Insect Physiol 2016. [PMID: 26211599 DOI: 10.1016/j.jinsphys.2015.07.013] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Among plant-parasitic nematodes, the root-knot nematodes (RKNs) of the Meloidogyne spp. are the most economically important genus. RKN are root parasitic worms able to infect nearly all crop species and have a wide geographic distribution. During infection, RKNs establish and maintain an intimate relationship with the host plant. This includes the creation of a specialized nutritional structure composed of multinucleate and hypertrophied giant cells, which result from the redifferentiation of vascular root cells. Giant cells constitute the sole source of nutrients for the nematode and are essential for growth and reproduction. Hyperplasia of surrounding root cells leads to the formation of the gall or root-knot, an easily recognized symptom of plant infection by RKNs. Secreted effectors produced in nematode salivary glands and injected into plant cells through a specialized feeding structure called the stylet play a critical role in the formation of giant cells. Here, we describe the complex interactions between RKNs and their host plants. We highlight progress in understanding host plant responses, focusing on how RKNs manipulate key plant processes and functions, including cell cycle, defence, hormones, cellular scaffold, metabolism and transport.
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Affiliation(s)
- Bruno Favery
- INRA, UMR 1355 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; Univ. Nice Sophia Antipolis, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; CNRS, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France
| | - Michaël Quentin
- INRA, UMR 1355 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; Univ. Nice Sophia Antipolis, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; CNRS, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France
| | - Stéphanie Jaubert-Possamai
- INRA, UMR 1355 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; Univ. Nice Sophia Antipolis, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; CNRS, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France
| | - Pierre Abad
- INRA, UMR 1355 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; Univ. Nice Sophia Antipolis, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France; CNRS, UMR 7254 Institut Sophia Agrobiotech, 06900 Sophia-Antipolis, France.
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Ullrich T, Schimmöller L, Quentin M. [Not Available]. ROFO-FORTSCHR RONTG 2015; 188:296-8. [PMID: 26422419 DOI: 10.1055/s-0041-104891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Quentin M, Schimmöller L, Blondin D, Dietzel F, Arsov C, Rabenalt R, Albers P, Antoch G. MRT-(in-bore)-Prostatabiopsie als Goldstandard der gezielten Biopsiemethoden? ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Schimmöller L, Quentin M, Blondin D, Hiester A, Rabenalt R, Godehardt E, Albers P, Antoch G, Arsov C. Prospektiv randomisierter Vergleich der MRT-(in-bore)-Biopsie mit der Kombination aus MRT/Ultraschall-Fusions- und klassischer TRUS-Biopsie zur Prostatakarzinomdiagnostik bei zuvor negativer Biopsie. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1550767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Schimmöller L, Quentin M, Blondin D, Rabenalt R, Becker N, Gabbert H, Albers P, Antoch G, Arsov C. Risikoreduktion eines Gleason-Upgrades bei der radikalen Prostatektomie durch gezielte MRT-Biopsieverfahren. ROFO-FORTSCHR RONTG 2015. [DOI: 10.1055/s-0035-1551438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Paganelli L, Caillaud MC, Quentin M, Damiani I, Govetto B, Lecomte P, Karpov PA, Abad P, Chabouté ME, Favery B. Three BUB1 and BUBR1/MAD3-related spindle assembly checkpoint proteins are required for accurate mitosis in Arabidopsis. New Phytol 2015; 205:202-15. [PMID: 25262777 DOI: 10.1111/nph.13073] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 02/05/2014] [Accepted: 07/27/2014] [Indexed: 05/13/2023]
Abstract
The spindle assembly checkpoint (SAC) is a refined surveillance mechanism which ensures that chromosomes undergoing mitosis do not segregate until they are properly attached to the spindle microtubules (MT). The SAC has been extensively studied in metazoans and yeast, but little is known about its role in plants. We identified proteins interacting with a MT-associated protein MAP65-3, which plays a critical role in organising mitotic MT arrays, and carried out a functional analysis of previously and newly identified SAC components. We show that Arabidopsis SAC proteins BUB3.1, MAD2, BUBR1/MAD3s and BRK1 interact with each other and with MAP65-3. We found that two BUBR1/MAD3s interacted specifically at centromeres. When stably expressed in Arabidopsis, BRK1 localised to the kinetochores during all stages of the mitotic cell cycle. Early in mitosis, BUB3.1 and BUBR1/MAD3.1 localise to the mitotic spindle, where MAP65-3 organises spindle MTs. A double-knockout mad3.1 mad3.2 mutant presented spindle MT abnormalities, chromosome misalignments on the metaphase plate and the production of lagging chromosomes and micronuclei during mitosis. We conclude that BRK1 and BUBR1/MAD3-related proteins play a key role in ensuring faithful chromosome segregation during mitosis and that their interaction with MAP65-3 may be important for the regulation of MT-chromosome attachment.
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Affiliation(s)
- Laetitia Paganelli
- UMR 1355, Institut Sophia Agrobiotech, INRA, 400 route des Chappes, F-06903, Sophia-Antipolis, France; UMR 7254, CNRS, 400 route des Chappes, F-06903, Sophia-Antipolis, France; UMR 1355, Université de Nice Sophia-Antipolis, 400 route des Chappes, F-06903, Sophia-Antipolis, France
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Wieczorek K, Elashry A, Quentin M, Grundler FMW, Favery B, Seifert GJ, Bohlmann H. A distinct role of pectate lyases in the formation of feeding structures induced by cyst and root-knot nematodes. Mol Plant Microbe Interact 2014; 27:901-12. [PMID: 24905398 DOI: 10.1094/mpmi-01-14-0005-r] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Pectin in the primary plant cell wall is thought to be responsible for its porosity, charge density, and microfibril spacing and is the main component of the middle lamella. Plant-parasitic nematodes secrete cell wall-degrading enzymes that macerate the plant tissue, facilitating the penetration and migration within the roots. In sedentary endoparasitic nematodes, these enzymes are released only during the migration of infective juveniles through the root. Later, nematodes manipulate the expression of host plant genes, including various cell wall enzymes, in order to induce specific feeding sites. In this study, we investigated expression of two Arabidopsis pectate lyase-like genes (PLL), PLL18 (At3g27400) and PLL19 (At4g24780), together with pectic epitopes with different degrees of methylesterification in both syncytia induced by the cyst nematode Heterodera schachtii and giant cells induced by the root-knot nematode Meloidogyne incognita. We confirmed upregulation of PLL18 and PLL19 in both types of feeding sites with quantitative reverse-transcriptase polymerase chain reaction (RT-PCR) and in situ RT-PCR. Furthermore, the functional analysis of mutants demonstrated the important role of both PLL genes in the development and maintenance of syncytia but not giant cells. Our results show that both enzymes play distinct roles in different infected root tissues as well as during parasitism of different nematodes.
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Schimmöller L, Quentin M, Arsov C, Hiester A, Kröpil P, Rabenalt R, Albers P, Antoch G, Blondin D. Predictive power of the ESUR scoring system for prostate cancer diagnosis verified with targeted MR-guided in-bore biopsy. Eur J Radiol 2014; 83:2103-2108. [PMID: 25241051 DOI: 10.1016/j.ejrad.2014.08.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 08/03/2014] [Accepted: 08/07/2014] [Indexed: 11/16/2022]
Abstract
PURPOSE This study evaluates the diagnostic value of the ESUR scoring system (PI-RADS) regarding prostate cancer detection using MR-guided in-bore biopsies (IB-GB) as the reference standard. METHODS 566 lesions in 235 consecutive patients (65.7 ± 7.9 years, PSA 9.9 ± 8.5 ng/ml) with a multiparametric (mp)-MRI (T2WI, DWI, DCE) of the prostate at 3T were scored using the PI-RADS scoring system. PI-RADS single (PSsingle), summed (PSsum), and overall (PSoverall) scores were determined. All lesions were histologically verified by IB-GB. RESULTS Lesions with a PSsum below 9 contained no prostate cancer (PCa) with Gleason score (GS) ≥ 4+3=7. A PSsum of 13-15 (PSoverall V) resulted in 87.8% (n=108) in PCa and in 42.3% (n=52) in GS ≥ 4+3=7. Transition zone (TZ) lesions with a PSsum of 13-15 (PSoverall V) resulted in 76.3% (n=36) in PCa and in 26.3% (n=10) in GS ≥ 4+3=7, whereas for peripheral zone (PZ) lesions cancer detection rate at this score was 92.9% (n=79) and 49.4% (n=42) for GS ≥ 4+3=7. Using a threshold of PSsum ≥ 10, sensitivity was 86.0%, and negative predictive value (NPV) was 86.2%. For higher grade PCa sensitivity was 98.6%, and NPV was 99.5%. CONCLUSION A PSsum below 9 excluded a higher grade PCa, whereas lesions with a PSsum ≥ 13 (PSoverall V) represented in 88% PCa, and in 42% higher grade PCa. The PSsum or PSoverall demonstrated a better diagnostic value for PZ lesions with higher detection rates for higher grade PCa compared to TZ lesions.
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Affiliation(s)
- L Schimmöller
- Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - M Quentin
- Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - C Arsov
- Univ Dusseldorf, Medical Faculty, Department of Urology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - A Hiester
- Univ Dusseldorf, Medical Faculty, Department of Urology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - P Kröpil
- Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - R Rabenalt
- Univ Dusseldorf, Medical Faculty, Department of Urology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - P Albers
- Univ Dusseldorf, Medical Faculty, Department of Urology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - G Antoch
- Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
| | - D Blondin
- Univ Dusseldorf, Medical Faculty, Department of Diagnostic and Interventional Radiology, Moorenstr. 5, D-40225 Dusseldorf, Germany.
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Schimmöller L, Quentin M, Arsov C, Hiester A, Rabenalt R, Albers P, Antoch G, Blondin D. Stellenwert der MRT-Sequenzen mittels PI-RADS Score hinsichtlich Detektion von Prostatakarzinomen auf der Basis gezielter MR-Biopsien. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Schimmöller L, Quentin M, Arsov C, Hiester A, Rabenalt R, Albers P, Antoch G, Blondin D. Tumordetektion und Vorhersagequalität des PI-RADS Summenscores für Prostatakarzinome anhand gezielter MRT-Biopsien. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Quentin M, Schimmöller L, Hiester A, Arsov C, Rabenalt R, Albers P, Antoch G, Blondin D. Korrelation des PI-RADS Summenscore mit dem Gleason score von gezielt MR bioptisch gesicherten Prostatakarzinomen. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1373466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Miese F, Rubbert C, Buchbender C, Miese C, Quentin M, Lanzman R, Antoch G, Scherer A. [Internet resources for radiologists : a positive selection]. Radiologe 2013; 53:65-8, 70-4. [PMID: 23338249 DOI: 10.1007/s00117-012-2430-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
In radiology the use of internet resources is part of the daily routine. The critical selection of but not the access to radiologically relevant information is the key topic in internet use. We offer a selection of reviewed internet sources for radiologists. We present sources that offer guidance in decision-making in daily routine as well as internet sources on technical topics in radiology. Case selection and radiological search engines are helpful sites to begin an internet research. Online anatomy sites can be of assistance for interpretation of findings in radiology. Writing and publishing scientific works in radiology requires access to numerous internet services, a positive selection of which are reviewed in the present article. A variety of freeware is available on the internet, some of which may be a substantial benefit to projects in radiology.
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Affiliation(s)
- F Miese
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf, Deutschland
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Schimmöller L, Quentin M, Arsov C, Lanzman RS, Hiester A, Rabenalt R, Antoch G, Albers P, Blondin D. Inter-reader agreement of the ESUR score for prostate MRI using in-bore MRI-guided biopsies as the reference standard. Eur Radiol 2013; 23:3185-90. [PMID: 23756958 DOI: 10.1007/s00330-013-2922-y] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2013] [Revised: 04/27/2013] [Accepted: 05/16/2013] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The recent European Society of Urogenital Radiology (ESUR) guidelines for evaluation and reporting of prostate multiparametric magnetic resonance imaging (mp-MRI) include the Prostate Imaging Reporting and Data System (PI-RADS). The aim of this study was to investigate the inter-reader agreement of this scoring system. METHODS One hundred and sixty-four lesions in 67 consecutive patients with elevated prostate-specific antigen and previously negative trans-rectal ultrasound (TRUS)-guided biopsy were scored retrospectively by three blinded readers using PI-RADS. Mp-MRI was performed at 3 T using T2-weighted, diffusion-weighted and dynamic contrast-enhanced imagings (T2WI, DWI, DCE-MRI). Histology of all lesions was obtained by in-bore MRI-guided biopsy. Cohen's kappa statistics were calculated for all readers. RESULTS Inter-reader agreement for all lesions was good to moderate (T2WI, κ = 0.55; DWI, κ = 0.64; DCE-MRI, κ = 0.65). For tumour lesions it was good (T2WI, κ = 0.66; DWI, κ = 0.80; DCE-MRI, κ = 0.63) and for benign lesions moderate to good (T2WI, κ = 0.46; DWI, κ = 0.52; DCE-MRI, κ = 0.67). Using an overall PI-RADS score with a threshold of ≥10, we achieved a sensitivity of 85.7 %, and negative predictive value of 90.1 % for biopsied lesions. CONCLUSION PI-RADS score shows good to moderate inter-reader agreement and enables standardised evaluation of prostate mp-MRI, with high sensitivity and negative predictive value. KEY POINTS • The European Society of Urogenital Radiology recently published guidelines for prostate MRI. • We have evaluated inter-reader agreement of ESUR scoring for multiparametric prostate MRI. • PI-RADS shows good to moderate inter-reader agreement and is clinically applicable. • PI-RADS achieves in our series high sensitivity and negative predictive value for biopsied lesions. • PI-RADS can be used as standardised scoring system in prostate cancer detection.
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Affiliation(s)
- L Schimmöller
- Medical Faculty, Department of Diagnostic and Interventional Radiology, University Dusseldorf, Moorenstr. 5, 40225, Dusseldorf, Germany
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Schimmöller L, Quentin M, Arsov C, Rabenalt R, Lanzman RS, Antoch G, Albers P, Blondin D. Interobserver-Reliabilität des ESUR-Scoringsystems (PI-RADS) und Vergleich mit einem alternativen Scoringsystem mittels MRT-biopsierter Läsionen. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Quentin M, Arsov C, Röhlen S, Klasen J, Antoch G, Albers P, Blondin D. Inter-Reader Agreement of Multi-Parametric MR Imaging for the Detection of Prostate Cancer: Evaluation of a Scoring System. ROFO-FORTSCHR RONTG 2012; 184:925-9. [DOI: 10.1055/s-0032-1312876] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- M. Quentin
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - C. Arsov
- Urologische Klinik, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - S. Röhlen
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - J. Klasen
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - G. Antoch
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - P. Albers
- Urologische Klinik, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
| | - D. Blondin
- Institut für Diagnostische und Interventionelle Radiologie, Medizinische Fakultät, Heinrich-Heine-Universität Düsseldorf
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Quentin M, Blondin D, Klasen J, Schek J, Buchbender C, Miese FR, Antoch G, Barski D, Albers P, Arsov C. Evaluation of a structured report of functional prostate magnetic resonance imaging in patients with suspicion for prostate cancer or under active surveillance. Urol Int 2012; 89:25-9. [PMID: 22677880 DOI: 10.1159/000338808] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 04/14/2012] [Indexed: 11/19/2022]
Abstract
BACKGROUND Functional magnetic resonance imaging (MRI) seems to be a useful tool for prostate cancer (PCa) detection in patients with a previous negative biopsy but persistently increased prostate-specific antigen (PSA) values. Additionally, it enables correct cancer localization in patients with known PCa under active surveillance to avoid misclassification on repeat biopsies. Nevertheless, suspicious lesions on MRI findings need verification by biopsy. The aim of the present study was to establish a standardized functional prostate MRI reporting scheme. METHODS Prostate MRI with T(2)-weighted images, T(1)-weighted images, diffusion-weighted imaging, and dynamic contrast-enhanced MRI of 56 consecutive patients were performed on a 3-T scanner. Patients with prior negative random transrectal ultrasound (TRUS)-guided biopsy and continuous suspicion for PCa as well as patients under active surveillance were included. The MRI localization report of suspicious lesions followed a standardized scheme. TRUS-guided random biopsy with addition of targeted biopsy cores was performed afterwards based on the structured report. RESULTS Of the 56 patients, 18 had suspicious MRI findings and subsequently underwent repeat biopsy under guidance of the standardized localization scheme. PCa was documented in 72% (13/18). CONCLUSIONS A standardized reporting scheme of suspicious findings on prostate MRI leads to higher success rates as compared to standard random TRUS-guided biopsy.
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Affiliation(s)
- M Quentin
- Department of Diagnostic and Interventional Radiology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany. Michael.Quentin @ med.uni-duesseldorf.de
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Klasen J, Blondin D, Schmitt P, Bi X, Sansone R, Wittsack HJ, Kröpil P, Quentin M, Kuhlemann J, Miese F, Heiss C, Kelm M, Antoch G, Lanzman R. Nonenhanced ECG-gated quiescent-interval single-shot MRA (QISS-MRA) of the lower extremities: Comparison with contrast-enhanced MRA. Clin Radiol 2012; 67:441-6. [DOI: 10.1016/j.crad.2011.10.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 10/09/2011] [Accepted: 10/12/2011] [Indexed: 12/01/2022]
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Blondin D, Arsov C, Lanzman RS, Röhlen S, Klasen J, Rabenalt R, Antoch G, Albers P, Quentin M. MRT-gesteuerte Prostatabiopsie bei 3 Tesla - erste Ergebnisse. ROFO-FORTSCHR RONTG 2012. [DOI: 10.1055/s-0032-1311253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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