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Krull JE, Wenzl K, Hopper MA, Manske MK, Sarangi V, Maurer MJ, Larson MC, Mondello P, Yang Z, Novak JP, Serres M, Whitaker KR, Villasboas Bisneto JC, Habermann TM, Witzig TE, Link BK, Rimsza LM, King RL, Ansell SM, Cerhan JR, Novak AJ. Follicular lymphoma B cells exhibit heterogeneous transcriptional states with associated somatic alterations and tumor microenvironments. Cell Rep Med 2024; 5:101443. [PMID: 38428430 PMCID: PMC10983045 DOI: 10.1016/j.xcrm.2024.101443] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 08/14/2023] [Accepted: 02/05/2024] [Indexed: 03/03/2024]
Abstract
Follicular lymphoma (FL) is an indolent non-Hodgkin lymphoma of germinal center origin, which presents with significant biologic and clinical heterogeneity. Using RNA-seq on B cells sorted from 87 FL biopsies, combined with machine-learning approaches, we identify 3 transcriptional states that divide the biological ontology of FL B cells into inflamed, proliferative, and chromatin-modifying states, with relationship to prior GC B cell phenotypes. When integrated with whole-exome sequencing and immune profiling, we find that each state was associated with a combination of mutations in chromatin modifiers, copy-number alterations to TNFAIP3, and T follicular helper cells (Tfh) cell interactions, or primarily by a microenvironment rich in activated T cells. Altogether, these data define FL B cell transcriptional states across a large cohort of patients, contribute to our understanding of FL heterogeneity at the tumor cell level, and provide a foundation for guiding therapeutic intervention.
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Affiliation(s)
| | - Kerstin Wenzl
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Matthew J Maurer
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Melissa C Larson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | | | - ZhiZhang Yang
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | | | | | | | - Brian K Link
- Division of Hematology, Oncology, and Blood & Marrow Transplantation, University of Iowa, Iowa City, IA, USA
| | - Lisa M Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, USA
| | - Rebecca L King
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - James R Cerhan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Anne J Novak
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
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Hopper MA, Wenzl K, Hartert KT, Krull JE, Dropik AR, Novak JP, Manske MK, Serres MR, Sarangi V, Larson MC, Maurer MJ, Yang ZZ, Paludo J, McPhail ED, Habermann TM, Link BK, Rimsza LM, Ansell SM, Cerhan JR, Jevremovic D, Novak AJ. Molecular classification and identification of an aggressive signature in low-grade B-cell lymphomas. Hematol Oncol 2023; 41:644-654. [PMID: 37254453 PMCID: PMC10592585 DOI: 10.1002/hon.3187] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/04/2023] [Accepted: 05/12/2023] [Indexed: 06/01/2023]
Abstract
Non-follicular low-grade B-cell lymphomas (LGBCL) are biologically diverse entities that share clinical and histologic features that make definitive pathologic categorization challenging. While most patients with LGBCL have an indolent course, some experience aggressive disease, highlighting additional heterogeneity across these subtypes. To investigate the potential for shared biology across subtypes, we performed RNA sequencing and applied machine learning approaches that identified five clusters of patients that grouped independently of subtype. One cluster was characterized by inferior outcome, upregulation of cell cycle genes, and increased tumor immune cell content. Integration of whole exome sequencing identified novel LGBCL mutations and enrichment of TNFAIP3 and BCL2 alterations in the poor survival cluster. Building on this, we further refined a transcriptomic signature associated with early clinical failure in two independent cohorts. Taken together, this study identifies unique clusters of LGBCL defined by novel gene expression signatures and immune profiles associated with outcome across diagnostic subtypes.
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Affiliation(s)
| | | | | | | | | | - Joseph P. Novak
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | | | | | | | - Melissa C. Larson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Matthew J. Maurer
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | | | - Jonas Paludo
- Division of Hematology, Mayo Clinic, Rochester, MN
| | | | | | - Brian K. Link
- Division of Hematology, Oncology, and Bone & Marrow Transplantation, University of Iowa, Iowa City, IA
| | - Lisa M. Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Phoenix, AZ
| | | | - James R. Cerhan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Dragan Jevremovic
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
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Wenzl K, Stokes M, Novak JP, Bock AM, Khan S, Hopper MA, Krull JE, Dropik AR, Walker JS, Sarangi V, Mwangi R, Ortiz M, Stong N, Huang CC, Maurer MJ, Rimsza L, Link BK, Slager SL, Asmann Y, Mondello P, Morin R, Ansell SM, Habermann TM, Feldman AL, King RL, Nowakowski G, Cerhan JR, Gandhi AK, Novak AJ. Multiomic Analysis Identifies a High-Risk Metabolic and TME Depleted Signature that Predicts Early Clinical Failure in DLBCL. medRxiv 2023:2023.06.07.23290748. [PMID: 37333387 PMCID: PMC10274962 DOI: 10.1101/2023.06.07.23290748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
PURPOSE 60-70% of newly diagnosed diffuse large B-cell lymphoma (DLBCL) patients avoid events within 24 months of diagnosis (EFS24) and the remainder have poor outcomes. Recent genetic and molecular classification of DLBCL has advanced our knowledge of disease biology, yet were not designed to predict early events and guide anticipatory selection of novel therapies. To address this unmet need, we used an integrative multiomic approach to identify a signature at diagnosis that will identify DLBCL at high risk of early clinical failure. PATIENTS AND METHODS Tumor biopsies from 444 newly diagnosed DLBCL were analyzed by WES and RNAseq. A combination of weighted gene correlation network analysis and differential gene expression analysis followed by integration with clinical and genomic data was used to identify a multiomic signature associated with high risk of early clinical failure. RESULTS Current DLBCL classifiers are unable to discriminate cases who fail EFS24. We identified a high risk RNA signature that had a hazard ratio (HR, 18.46 [95% CI 6.51-52.31] P < .001) in a univariate model, which did not attenuate after adjustment for age, IPI and COO (HR, 20.8 [95% CI, 7.14-61.09] P < .001). Further analysis revealed the signature was associated with metabolic reprogramming and a depleted immune microenvironment. Finally, WES data was integrated into the signature and we found that inclusion of ARID1A mutations resulted in identification of 45% of cases with an early clinical failure which was validated in external DLBCL cohorts. CONCLUSION This novel and integrative approach is the first to identify a signature at diagnosis that will identify DLBCL at high risk for early clinical failure and may have significant implications for design of therapeutic options.
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Webb SA, Hopper MA, Chitnavis J. Calcific tendonitis of the quadriceps tendon. J Surg Case Rep 2018; 2018:rjy053. [PMID: 29644038 PMCID: PMC5887327 DOI: 10.1093/jscr/rjy053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 01/02/2018] [Revised: 02/06/2018] [Accepted: 03/15/2018] [Indexed: 11/29/2022] Open
Abstract
A 61-year-old woman presented with chronic anterior pain and stiffness in the distal left thigh. Examination revealed swelling and tenderness immediately proximal to the patella. Radiographs showed opacities in the distal anterior thigh whilst MRI identified enlargement of the distal quadriceps tendon with splayed fibres separated by solid conglomerates. Dystrophic calcification of the quadriceps tendon was diagnosed. Blood tests revealed no systemic abnormalities in calcium handling. Arthroscopy of the left knee identified calcific deposits in the supra-patella pouch with surrounding synovitis. An open debridement of the tendon was performed; biopsy of the excised tendon showed chronic tenosynovitis with dystrophic calcification without evidence of malignancy. Post-operatively her knee was braced in extension enabling progressive flexion over 4 weeks. Anterior knee pain diminished post-operatively and 10 months following surgery the patient was pain free, able to walk normally and scored 99/100 on the Fulkerson modification of the Lysholm score.
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Affiliation(s)
- S A Webb
- School of Clinical Medicine, University of Cambridge, Cambridge CB2 0SP, UK
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Turmezei TD, Fotiadou A, Lomas DJ, Hopper MA, Poole KES. A new CT grading system for hip osteoarthritis. Osteoarthritis Cartilage 2014; 22:1360-6. [PMID: 24642349 DOI: 10.1016/j.joca.2014.03.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Revised: 02/13/2014] [Accepted: 03/04/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVES We have developed a new grading system for hip osteoarthritis using clinical computed tomography (CT). This technique was compared with Kellgren and Lawrence (K&L) grading and minimum joint space width (JSW) measurement in digitally reconstructed radiographs (DRRs) from the same CT data. In this paper we evaluate and compare the accuracy and reliability of these measures in the assessment of radiological disease. DESIGN CT imaging of hips from 30 female volunteers aged 66 ± 17 years were used in two reproducibility studies, one testing the reliability of the new system, the other testing K&L grading and minimum JSW measurement in DRRs. RESULTS Intra- and inter-observer reliability was substantial for CT grading according to weighted kappa (0.74 and 0.75 respectively), while intra- and inter-observer reliability was at worst moderate (0.57) and substantial (0.63) respectively for DRR K&L grading. Bland-Altman analysis showed a systematic difference in minimum JSW measurement of 0.82 mm between reviewers, with a least detectable difference of 1.06 mm. The area under the curve from ROC analysis was 0.91 for our CT composite score. CONCLUSIONS CT grading of hip osteoarthritis (categorised as none, developing and established) has substantial reliability. Sensitivity was increased when CT features of osteoarthritis were assigned a composite score (0 = none to 7 = severest) that also performed well as a diagnostic test, but at the cost of reliability. Having established feasibility and reliability for this new CT system, sensitivity testing and validation against clinical measures of hip osteoarthritis will now be performed.
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Affiliation(s)
- T D Turmezei
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK; Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK; Department of Medicine, Box 157, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK.
| | - A Fotiadou
- Department of Radiology, Hinchingbrooke Health Care NHS Trust, Hinchingbrooke Hospital, Hinchingbrooke Park, Huntingdon PE29 6NT, UK
| | - D J Lomas
- Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - M A Hopper
- Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - K E S Poole
- Department of Medicine, Box 157, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
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Turmezei TD, Lomas DJ, Hopper MA, Poole KES. Severity mapping of the proximal femur: a new method for assessing hip osteoarthritis with computed tomography. Osteoarthritis Cartilage 2014; 22:1488-98. [PMID: 24631578 DOI: 10.1016/j.joca.2014.03.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/13/2014] [Accepted: 03/04/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Plain radiography has been the mainstay of imaging assessment in osteoarthritis for over 50 years, but it does have limitations. Here we present the methodology and results of a new technique for identifying, grading, and mapping the severity and spatial distribution of osteoarthritic disease features at the hip in 3D with clinical computed tomography (CT). DESIGN CT imaging of 456 hips from 230 adult female volunteers (mean age 66 ± 17 years) was reviewed using 3D multiplanar reformatting to identify bone-related radiological features of osteoarthritis, namely osteophytes, subchondral cysts and joint space narrowing. Scoresheets dividing up the femoral head, head-neck region and the joint space were used to register the location and severity of each feature (scored from 0 to 3). Novel 3D cumulative feature severity maps were then created to display where the most severe disease features from each individual were anatomically located across the cohort. RESULTS Feature severity maps showed a propensity for osteophytes at the inferoposterior and superolateral femoral head-neck junction. Subchondral cysts were a less common and less localised phenomenon. Joint space narrowing <1.5 mm was recorded in at least one sector of 83% of hips, but most frequently in the posterolateral joint space. CONCLUSIONS This is the first description of hip osteoarthritis using unenhanced clinical CT in which we describe the co-localisation of posterior osteophytes and joint space narrowing for the first time. We believe this technique can perform several important roles in future osteoarthritis research, including phenotyping and sensitive disease assessment in 3D.
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Affiliation(s)
- T D Turmezei
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK; Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK; Department of Medicine, Box 157, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK.
| | - D J Lomas
- Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - M A Hopper
- Department of Radiology, Box 218, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - K E S Poole
- Department of Medicine, Box 157, Level 5, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
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Ruivo C, Hopper MA. Sprengel's shoulder. JBR-BTR 2013; 96:262. [PMID: 24224323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Affiliation(s)
- C Ruivo
- Department of Radiology, Hospitais da Universidade de Coimbra - Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
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Hopper MA, Robinson P, Grainger AJ. Meniscal tear evaluation. Comparison of a conventional spin-echo proton density sequence with a fast spin-echo sequence utilizing a 512 × 358 matrix size. Clin Radiol 2011; 66:329-33. [PMID: 21356395 DOI: 10.1016/j.crad.2010.11.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 10/24/2010] [Accepted: 11/02/2010] [Indexed: 10/18/2022]
Abstract
AIM To determine the sensitivities, specificities, and receiver-operating characteristics (ROCs) for sagittal conventional spin-echo proton density (SE-PD) and fast spin-echo proton density (FSE-PD) sequences in the diagnosis of meniscal tears when compared to arthroscopic findings utilizing increased FSE matrix acquisition size. METHOD AND MATERIALS Magnetic resonance imaging (MRI) studies of 97 knees (194 menisci) were independently and prospectively interpreted by two experienced musculoskeletal radiologists over four separate readings at least 3 weeks apart. Readings 1 and 2 included images in all three planes in accordance with the standard protocol with either a SE or FSE sagittal PD, at readings 3 and 4 just the SE or FSE sagittal PD sequences were reported. The FSE sequence was acquired with an increased matrix size, compared to the SE sequence, to provide increased resolution. Menisci were graded for the presence of a tear and statistical analysis to calculate sensitivity and specificity was performed comparing to arthroscopy as the reference standard. ROC analysis for the diagnosis of meniscal tears on the SE and FSE sagittal sequences was also evaluated. Reader concordance for the SE and FSE sequences was calculated. RESULTS Sixty-seven tears were noted at arthroscopy; 60 were detected on SE and 56 on FSE. The sensitivity and specificity for SE was 90 and 90%, and for FSE was 84 and 94%, respectively, with no significant difference. ROC analysis showed no significant difference between the two sequences and kappa values demonstrated a higher level of reader agreement for the FSE than for the SE reading. CONCLUSION Use of a FSE sagittal PD sequence with an increased matrix size provides comparable performance to conventional SE sagittal PD when evaluating meniscal disease with a modern system. The present study indicates an increased level of concordance between readers for the FSE sagittal sequence compared to the conventional SE.
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Affiliation(s)
- M A Hopper
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
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Thurley PD, Hopper MA, Jobling JC, Teahon K. Fluoroscopic insertion of post-pyloric feeding tubes: success rates and complications. Clin Radiol 2008; 63:543-8. [PMID: 18374718 DOI: 10.1016/j.crad.2007.11.005] [Citation(s) in RCA: 17] [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: 05/16/2007] [Revised: 10/30/2007] [Accepted: 11/02/2007] [Indexed: 01/15/2023]
Abstract
AIM To examine the success and complication rates of radiological placement of post-pyloric feeding tubes, including those inserted with the assistance of a guide-wire. MATERIALS AND METHODS Two hundred referrals (156 patients), between the dates of 5 April 2002 and 10 September 2004, were identified retrospectively from computerized records. Subsequently, the radiology reports and patients' notes were reviewed to evaluate the indications for post-pyloric feeding, success of placement, use of a guide-wire, and any complications. RESULTS A post-pyloric tube was placed in the distal duodenum/jejunum in 183 (91.5%) patients and in the proximal duodenum or distal stomach in six (3%). A tube could not be inserted in 11 (5.5%) patients, and 51 (25.5%) of the insertions required the use of a guide-wire. Immediate complications were recorded in seven patients (3.5%): vomiting (n=5); hypotension and apnoea requiring naloxone (n=1) and hypoxia requiring endotracheal intubation (n=1). CONCLUSION Radiological placement of post-pyloric feeding tubes has a success rate comparable with endoscopically placed tubes, and it rarely involves significant technique-related complications.
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Affiliation(s)
- P D Thurley
- Department of Clinical Radiology, Nottingham University Hospitals NHS Trust, Nottingham, UK
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