1
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Vaxman I, Kumar SK, Buadi F, Lacy MQ, Dingli D, Hayman S, Kourelis T, Warsame R, Hwa Y, Fonder A, Hobbs M, Muchtar E, Leung N, Kapoor P, Go R, Lin Y, Gonsalves W, Siddiqui M, Kyle RA, Rajkumar SV, Gertz MA, Dispenzieri A. Daratumumab, carfilzomib, and pomalidomide for the treatment of POEMS syndrome: The Mayo Clinic Experience. Blood Cancer J 2023; 13:91. [PMID: 37253713 DOI: 10.1038/s41408-023-00859-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/20/2023] [Accepted: 05/12/2023] [Indexed: 06/01/2023] Open
Affiliation(s)
- I Vaxman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah- Tikvah, Israel
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - T Kourelis
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Warsame
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Hwa
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Fonder
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Hobbs
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Siddiqui
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
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2
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Tam CS, Kapoor P, Castillo JJ, Buske C, Ansell SM, Branagan AR, Kimby E, Li Y, Palomba ML, Qiu L, Shadman M, Abeykoon JP, Sarosiek S, Vos J, Yi S, Stephens D, Roos-Weil D, Roccaro AM, Morel P, Munshi NC, Anderson KC, San-Miguel J, Garcia-Sanz R, Dimopoulos MA, Treon SP, Kersten MJ. Report of consensus panel 7 from the 11th international workshop on Waldenström macroglobulinemia on priorities for novel clinical trials. Semin Hematol 2023; 60:118-124. [PMID: 37099031 DOI: 10.1053/j.seminhematol.2023.03.006] [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: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 04/27/2023]
Abstract
Recent advances in the understanding of Waldenström macroglobulinemia (WM) biology have impacted the development of effective novel agents and improved our knowledge of how the genomic background of WM may influence selection of therapy. Consensus Panel 7 (CP7) of the 11th International Workshop on WM was convened to examine the current generation of completed and ongoing clinical trials involving novel agents, consider updated data on WM genomics, and make recommendations on the design and prioritization of future clinical trials. CP7 considers limited duration and novel-novel agent combinations to be the priority for the next generation of clinical trials. Evaluation of MYD88, CXCR4 and TP53 at baseline in the context of clinical trials is crucial. The common chemoimmunotherapy backbones, bendamustine-rituximab (BR) and dexamethasone, rituximab and cyclophosphamide (DRC), may be considered standard-of-care for the frontline comparative studies. Key unanswered questions include the definition of frailty in WM; the importance of attaining a very good partial response or better (≥VGPR), within stipulated time frame, in determining survival outcomes; and the optimal treatment of WM populations with special needs.
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Affiliation(s)
- C S Tam
- Alfred Health, Monash University, Melbourne, Victoria, Australia.
| | | | - J J Castillo
- Harvard Medical School, Dana Farber Cancer Institute, Boston. MA
| | - C Buske
- Institute of Experimental Cancer Research, University Hospital Ulm, Ulm, Germany
| | | | | | - E Kimby
- Karolinska Institut, Stockholm, Sweden
| | - Y Li
- Baylor College of Medicine, Houston, TX
| | - M L Palomba
- Memorial Sloan Kettering Cancer Center, New York, NY
| | - L Qiu
- National National Clinical Medical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - M Shadman
- Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA
| | | | - S Sarosiek
- Harvard Medical School, Dana Farber Cancer Institute, Boston. MA
| | - Jmi Vos
- Department of Hematology, Cancer Center Amsterdam/LYMMCARE, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - S Yi
- National National Clinical Medical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China; Tianjin Institutes of Health Science, Tianjin 301600, China
| | - D Stephens
- University of Utah Huntsman Cancer Institute, Salt Lake City, UT
| | - D Roos-Weil
- Sorbonne University, Hematology Unit, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | | | - P Morel
- Hematologie Clinique et Therapie Cellulaire, University Hospital Amiens Picardie, University of Picardie Jules Verne, France
| | - N C Munshi
- Institute of Experimental Cancer Research, University Hospital Ulm, Ulm, Germany
| | - K C Anderson
- Institute of Experimental Cancer Research, University Hospital Ulm, Ulm, Germany
| | - J San-Miguel
- Clinica Universidad de Navarra, CCUN, CIMA, IDISNA, CIBERONC, Navarra, Spain
| | - R Garcia-Sanz
- Hematology Department, University Hospital of Salamanca, Research Biomedical Institute of Salamanca, CIBERONC and Center for Cancer Research-IBMCC (University of Salamanca-CSIC), Salamanca, Spain
| | - M A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - S P Treon
- Institute of Experimental Cancer Research, University Hospital Ulm, Ulm, Germany
| | - M J Kersten
- Tianjin Institutes of Health Science, Tianjin 301600, China
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3
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D'Sa S, Matous JV, Advani R, Buske C, Castillo JJ, Gatt M, Kapoor P, Kersten MJ, Leblond V, Leiba M, Palomba ML, Paludo J, Qiu L, Sarosiek S, Shadman M, Talaulikar D, Tam CS, Tedeschi A, Thomas SK, Tohidi-Esfahani I, Trotman J, Varettoni M, Vos J, Garcia-Sanz R, San-Miguel J, Dimopoulos MA, Treon SP, Kastritis E. Report of consensus panel 2 from the 11th international workshop on Waldenström's macroglobulinemia on the management of relapsed or refractory WM patients. Semin Hematol 2023; 60:80-89. [PMID: 37147252 DOI: 10.1053/j.seminhematol.2023.03.003] [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: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/29/2023]
Abstract
The consensus panel 2 (CP2) of the 11th International Workshop on Waldenström's macroglobulinemia (IWWM-11) has reviewed and incorporated current data to update the recommendations for treatment approaches in patients with relapsed or refractory WM (RRWM). The key recommendations from IWWM-11 CP2 include: (1) Chemoimmunotherapy (CIT) and/or a covalent Bruton tyrosine kinase (cBTKi) strategies are important options; their use should reflect the prior upfront strategy and are subject to their availability. (2) In selecting treatment, biological age, co-morbidities and fitness are important; nature of relapse, disease phenotype and WM-related complications, patient preferences and hematopoietic reserve are also critical factors while the composition of the BM disease and mutational status (MYD88, CXCR4, TP53) should also be noted. (3) The trigger for initiating treatment in RRWM should utilize knowledge of patients' prior disease characteristics to avoid unnecessary delays. (4) Risk factors for cBTKi related toxicities (cardiovascular dysfunction, bleeding risk and concurrent medication) should be addressed when choosing cBTKi. Mutational status (MYD88, CXCR4) may influence the cBTKi efficacy, and the role of TP53 disruptions requires further study) in the event of cBTKi failure dose intensity could be up titrated subject to toxicities. Options after BTKi failure include CIT with a non-cross-reactive regimen to one previously used CIT, addition of anti-CD20 antibody to BTKi, switching to a newer cBTKi or non-covalent BTKi, proteasome inhibitors, BCL-2 inhibitors, and new anti-CD20 combinations are additional options. Clinical trial participation should be encouraged for all patients with RRWM.
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Affiliation(s)
- S D'Sa
- UCLH Centre for Waldenström Macroglobulinaemia and Related Conditions, University College London Hospitals NHS Foundation Trust, London, UK.
| | - J V Matous
- Colorado Blood Cancer Institute, Sarah Cannon Research Institute, Denver, CO
| | - R Advani
- Stanford University Medical Center, Stanford, CA
| | - C Buske
- University Hospital Ulm, Ulm, Germany
| | - J J Castillo
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - M Gatt
- Hadassah University Medical Center, Jerusalem, Israel
| | | | - M J Kersten
- Amsterdam UMC, University of Amsterdam, Department of Hematology, Cancer Center Amsterdam/LYMMCARE, Amsterdam, Netherlands
| | - V Leblond
- Groupe Hospitalier Pitié-Salpêtrière, Sorbonne University, Paris, France
| | - M Leiba
- Assuta Ashdod University Hospital; Faculty of Health Science, Ben-Gurion University of the Negev, Negev, Israel Memorial Sloan Kettering Cancer Center, New York, NY
| | - M L Palomba
- Memorial Sloan Kettering Cancer Center, New York NY US
| | | | - L Qiu
- National Clinical Medical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - S Sarosiek
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | | | - D Talaulikar
- ANU College of Health and Medicine, Canberra, Australia
| | - C S Tam
- Alfred Health, Monash University, Melbourne, Australia
| | - A Tedeschi
- A. O. Ospedale Niguarda Ca' Granda, Milan, Italy
| | - S K Thomas
- University of Texas, MD Anderson Cancer Center, Houston TX USA
| | - I Tohidi-Esfahani
- Concord Repatriation General Hospital, University of Sydney, Sydney, Australia
| | - J Trotman
- Concord Repatriation General Hospital, University of Sydney, Sydney, Australia
| | - M Varettoni
- Division of Hematology, Fondazione iRCCS Policlinico, San Matteo, Italy
| | - Jmi Vos
- Amsterdam UMC, University of Amsterdam, Department of Hematology, Cancer Center Amsterdam/LYMMCARE, Amsterdam, Netherlands
| | - R Garcia-Sanz
- Hematology Department, University Hospital of Salamanca, Research Biomedical Institute of Salamanca, CIBERONC and Center for Cancer Research-IBMCC (University of Salamanca-CSIC), Salamanca, Spain
| | - J San-Miguel
- Clínica Universidad de Navarra, Centro de Investigación Médica Aplicada, Instituto de Investigación Sanitaria de Navarra, Centro de Investigación Biomédica en Red Cáncer, Pamplona, Spain
| | - M A Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - S P Treon
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - E Kastritis
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
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4
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Abdallah N, Smith A, Geyer S, Binder M, Greipp P, Kapoor P, Dispenzieri A, Gertz M, Baughn L, Lacy M, Hayman S, Buadi F, Dingli D, Hwa Y, Lin Y, Kourelis T, Warsame R, Kyle R, Rajkumar S, Kumar S. 639P Conditional survival in MM and impact of prognostic factors over time. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.765] [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: 11/30/2022] Open
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5
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Tawfiq R, Abeykoon J, Zanwar S, Paludo J, Kapoor P. P1145: OUTCOMES AND TREATMENT PATTERNS AFTER FIRST RELAPSE IN PATIENTS WITH WALDENSTRÖM MACROGLOBULINEMIA. Hemasphere 2022. [PMCID: PMC9431189 DOI: 10.1097/01.hs9.0000847448.06276.e7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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6
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Patel NH, Osborne M, Teague H, Parel P, Svirydava M, Sorokin AV, Teklu M, Mayank G, Zhou W, Kapoor P, Rodante J, Keel A, Chen M, Tawakol A, Mehta NN. Bone marrow and splenic metabolic activity by 18F-FDG PET/CT are associated with noncalcified coronary burden and lipid-rich necrotic core in psoriasis. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1091] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background/Introduction
Psoriasis is an immune-mediated inflammatory skin condition with an increased risk of myocardial infarction (MI). Elevated bone marrow (BM) and splenic hematopoiesis occurs after MI. In stable patients without chronic inflammation, higher splenic hematopoiesis predicts major adverse cardiovascular events (MACE). Nevertheless, studies in humans investigating these relationships in states of chronic inflammation on coronary artery disease features associated with MACE are limited.
Purpose
To investigate the relationships between bone marrow and splenic metabolic activity by [18]-fluorodeoxyglucose (FDG) PET/CT and subclinical cardiovascular disease in psoriasis.
Methods
Healthy participants (N=30) and psoriasis participants (N=210) were age and sex matched. All participants underwent 18FDG PET/CT and CT angiography (Toshiba 320 slice). Coronary artery plaque characteristics were assessed using QAngio CT (Medis, The Netherlands) and lipid rich necrotic core (LRNC) was assessed using vascuCAP (Elucid Bioimaging, Boston, MA). For tissue metabolic activities target-to-background ratio (TBR) was calculated as the ratio of arterial and venous standardized uptake values (SUV).
Results
The psoriasis cohort was middle aged 49.2 (±SD 11.9) years and predominantly male (64%). Those with psoriasis vs. healthy participants had higher BM (1.58 (IQR 1.35–1.89) vs. 1.23 (IQR 1.14–1.35); p<0.001) and splenic (1.40 (IQR 1.21–1.66) vs.1.17 (IQR 1.11–1.26); p<0.001) metabolic activity. After adjustment for cardiovascular risk factors bone marrow metabolic activity was associated with total burden, non-calcified burden (NCB) and LRNC (β=0.36, β=0.39, β=0.26; all p<0.001) respectively. Similar findings were observed for splenic activity (β=0.33, β=0.36, β=0.36; all p<0.001). In ROC analysis, when comparing area under the curve, BM activity better incrementally predicted non-calcified burden and lipid rich necrotic core compared to splenic activity (Figure).
Conclusions
BM and splenic metabolic activity are increased in psoriasis. Both are associated with coronary artery disease but there was a slightly stronger association with BM activity compared to splenic activity, These findings warrant further study to understand immune mechanisms underlying these observations.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): National Heart, Lung and Blood Institute Intramural Research Program in Bethesda, Maryland Figure 1. Median values of NCB and LRNC were used to convert these continuous variables into dichotomous variables such that values ≤ median were designated as 0 and values >median were designated 1. Bone marrow model compared to base model and splenic model added incremental value in predicting NCB (p<0.0001) and LRNC (p=0.0003). Base model: Framingham risk score, lipid treatment, biologic therapy, homeostasis model assessment as an index of insulin resistance (HOMA-IR), low density lipoprotein (LDL).
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Affiliation(s)
- N H Patel
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - M Osborne
- Massachusetts General Hospital, Boston, United States of America
| | - H Teague
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - P Parel
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - M Svirydava
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - A V Sorokin
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - M Teklu
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - G Mayank
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - W Zhou
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - P Kapoor
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - J Rodante
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - A Keel
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - M Chen
- National Institutes of Health, National Heart Lung and Blood Institute, Bethesda, United States of America
| | - A Tawakol
- Massachusetts General Hospital, Boston, United States of America
| | - N N Mehta
- Massachusetts General Hospital, Boston, United States of America
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7
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Kumar S, Batrani M, Kapoor P, Kaur N, Kubba A. Ominous-appearing papulonodules in the genitocrural area. Clin Exp Dermatol 2021; 46:1641-1643. [PMID: 34302300 DOI: 10.1111/ced.14780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 05/24/2021] [Accepted: 05/31/2021] [Indexed: 11/29/2022]
Affiliation(s)
- S Kumar
- Department of Dermatology, Guru Gobind Singh Medical College and Hospital, Faridkot, Punjab, India
| | - M Batrani
- Delhi Dermpath Laboratory, Delhi Dermatology Group, New Delhi, India
| | - P Kapoor
- Department of Dermatology, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - N Kaur
- Department of Dermatology, Guru Gobind Singh Medical College and Hospital, Faridkot, Punjab, India
| | - A Kubba
- Delhi Dermpath Laboratory, Delhi Dermatology Group, New Delhi, India
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8
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Vaxman I, Kumar SK, Buadi F, Lacy MQ, Dingli D, Hwa Y, Fonder A, Hobbs M, Hayman S, Kourelis T, Warsame R, Muchtar E, Leung N, Kapoor P, Grogan M, Go R, Lin Y, Gonsalves W, Siddiqui M, Kyle RA, Rajkumar SV, Gertz MA, Dispenzieri A. Outcomes among newly diagnosed AL amyloidosis patients with a very high NT-proBNP: implications for trial design. Leukemia 2021; 35:3604-3607. [PMID: 34021252 PMCID: PMC8632659 DOI: 10.1038/s41375-021-01297-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/30/2021] [Accepted: 05/10/2021] [Indexed: 12/14/2022]
Affiliation(s)
- I Vaxman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva, Israel.,Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Hwa
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Fonder
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Hobbs
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - T Kourelis
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Warsame
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Grogan
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - R Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Siddiqui
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
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9
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Khass M, Levinson M, Schelonka RL, Kapoor P, Burrows PD, Schroeder HW. Preimmune Control of the Variance of TCR CDR-B3: Insights Gained From Germline Replacement of a TCR Dβ Gene Segment With an Ig D H Gene Segment. Front Immunol 2020; 11:2079. [PMID: 33042119 PMCID: PMC7518465 DOI: 10.3389/fimmu.2020.02079] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/30/2020] [Indexed: 12/03/2022] Open
Abstract
We have previously shown that the sequence of the immunoglobulin diversity gene segment (D H ) helps dictate the structure and composition of complementarity determining region 3 of the immunoglobulin heavy chain (CDR-H3). In order to test the role of germline D sequence on the diversity of the preimmune TCRβ repertoire of T cells, we generated a mouse with a mutant TCRβ DJC locus wherein the Dβ2-Jβ2 gene segment cluster was deleted and the remaining diversity gene segment, Dβ1 (IMGT:TRDB1), was replaced with DSP2.3 (IMGT:IGHD2-02), a commonly used B cell immunoglobulin D H gene segment. Crystallographic studies have shown that the length and thus structure of TCR CDR-B3 places amino acids at the tip of CDR-B3 in a position to directly interact with peptide bound to an MHC molecule. The length distribution of complementarity determining region 3 of the T cell receptor beta chain (CDR-B3) has been proposed to be restricted largely by MHC-specific selection, disfavoring CDR-B3 that are too long or too short. Here we show that the mechanism of control of CDR-B3 length depends on the Dβ sequence, which in turn dictates exonucleolytic nibbling. By contrast, the extent of N addition and the variance of created CDR3 lengths are regulated by the cell of origin, the thymocyte. We found that the sequence of the D and control of N addition collaborate to bias the distribution of CDR-B3 lengths in the pre-immune TCR repertoire and to focus the diversity provided by N addition and the sequence of the D on that portion of CDR-B3 that is most likely to interact with the peptide that is bound to the presenting MHC.
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Affiliation(s)
- Mohamed Khass
- Division of Clinical Immunology and Rheumatology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
- Division of Genetic Engineering and Biotechnology, National Research Center, Cairo, Egypt
| | - Michael Levinson
- Division of Clinical Immunology and Rheumatology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Robert L. Schelonka
- Division of Neonatology, Department of Pediatrics, Oregon Health Science Center, Portland, OR, United States
| | - Pratibha Kapoor
- Division of Clinical Immunology and Rheumatology, Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Peter D. Burrows
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Harry W. Schroeder
- Division of Clinical Immunology and Rheumatology, Department of Medicine, Microbiology, and Genetics, The University of Alabama at Birmingham, Birmingham, AL, United States
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10
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Sidiqi M, Saleh AA, Kumar S, Morie G, Dispenzieri A, Buadi F, Lacy M, Leung N, Muchtar E, Kyle R, Go R, Hobbs M, Gonsalves W, Kourelis T, Warsame R, Dingli D, Lust J, Hayman S, Rajkumar V, Kapoor P. PS1422 VENETOCLAX FOR THE TREATMENT OF MULTIPLE MYELOMA: OUTCOMES OUTSIDE OF CLINICAL TRIALS. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000563964.92802.c3] [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: 11/25/2022] Open
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11
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Grieb B, Abeykoon J, Zanwar S, Rajkumar S, Lacy M, Dispenzieri A, Gertz M, Gonsalves W, Go R, Buadi F, Dingli D, Hayman S, Warsame R, Kourelis T, Muchtar E, Kyle R, Kumar S, Kapoor P. PS1397 OUTCOMES OF LONG-TERM SURVIVORS WITH ACTIVE MULTIPLE MYELOMA. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000563864.43294.ef] [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: 11/25/2022] Open
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12
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Singh A, Pinto L, Martin C, Rutherford N, Ragunathan A, Upadhyay U, Kapoor P, McRae M, Siddiqui A, Cantelmi D, Heyland A, Wray G, Stone J. Rudiment resorption as a response to starvation during larval development in the sea urchin Strongylocentrotus droebachiensis. CAN J ZOOL 2018. [DOI: 10.1139/cjz-2017-0261] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phenotypic flexibility (reversible phenotypic change) enables organisms to couple internal, ontogenetic responses with external, environmental cues. Phenotypic flexibility also provides organisms with the capacity to buffer stereotypical internal, developmental processes from unpredictable external, ecological events. Echinoids exhibit dramatic phenotypic flexibility in response to variation in exogenous nutrient supplies. The extent to which echinoids display this flexibility has been explored incompletely and research hitherto has been conducted predominantly on larval structures and morphologies. We investigated experimentally the extent to which the primordial juvenile, the developing rudiment, can exhibit the first phase in phenotypic flexibility among individuals. We report for the first time on rudiment regression and complete resorption as a response to starvation during larval development in the sea urchin Strongylocentrotus droebachiensis (O.F. Müller, 1776) and identify a developmental “window of opportunity” within which this can occur. Based on our observations and previous suggestions, we speculate that sea urchin rudiments might provide means of buffering development during unfavorable conditions.
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Affiliation(s)
- A. Singh
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - L. Pinto
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - C. Martin
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - N. Rutherford
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Ragunathan
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - U. Upadhyay
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - P. Kapoor
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - M. McRae
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Siddiqui
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - D. Cantelmi
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
| | - A. Heyland
- Department of Integrative Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - G. Wray
- State University of New York, Stony Brook, NY 11794, USA
| | - J.R. Stone
- Department of Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada
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13
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Patel A, Ludwinski F, Kapoor P, Kerr A, Cho J, Fisher C, Hope A, Livieratos L, Saha P, Lyons O, Smith A, Modarai B. CD16+ monocytes stimulate arteriogenesis to salvage the ischemic Limb—a bench to bedside study. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.334] [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: 11/15/2022]
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14
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Chakraborty R, Muchtar E, Kumar SK, Buadi FK, Dingli D, Dispenzieri A, Hayman SR, Hogan WJ, Kapoor P, Lacy MQ, Leung N, Gertz MA. Elevated pre-transplant C-reactive protein identifies a high-risk subgroup in multiple myeloma patients undergoing delayed autologous stem cell transplantation. Bone Marrow Transplant 2017; 53:155-161. [PMID: 29131152 DOI: 10.1038/bmt.2017.228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 09/01/2017] [Accepted: 09/06/2017] [Indexed: 01/12/2023]
Abstract
The significance of elevated C-reactive protein (CRP) prior to autologous stem cell transplantation (ASCT) in multiple myeloma (MM) has not been studied. We analyzed 1111 MM patients who underwent ASCT at Mayo Clinic from 2007 to 2015. A total of 840 patients (76%) received early ASCT (⩽12 months from diagnosis) and 271 patients (24%) received delayed ASCT (>12 months from diagnosis). Elevated CRP (> upper normal limit (8 mg/L)) was seen in 14% and 22% of patients undergoing early and delayed ASCT, respectively (P=0.003). There was no correlation of CRP with pre-transplant response, bone marrow plasma cell percentage or labeling index. Patients with an elevated CRP had a higher likelihood of having circulating plasma cells prior to ASCT (33 vs 19%; P<0.001). In the early ASCT cohort, the median overall survival (OS) in patients with normal and elevated CRP was not reached and 91 months respectively (P=0.011). In the delayed ASCT cohort, the median OS in respective groups were 73 and 30 months respectively (P<0.001), with elevated CRP being an independent prognostic marker on multivariate analysis (hazard ratio 2.0; 95% confidence interval, 1.0-3.8; P=0.045). Elevated pre-transplant CRP identifies a high-risk population especially in patients undergoing delayed ASCT and should be incorporated in the pre-transplant evaluation.
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Affiliation(s)
- R Chakraborty
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W J Hogan
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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15
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Ailawadhi S, Mikhael JR, LaPlant BR, Laumann KM, Kumar S, Roy V, Dingli D, Bergsagel PL, Buadi FK, Rajkumar SV, Fonseca R, Gertz MA, Kapoor P, Sher T, Hayman SR, Stewart AK, Dispenzieri A, Kyle RA, Gonsalves WI, Reeder CB, Lin Y, Go RS, Leung N, Kourelis T, Lust JA, Russell SJ, Chanan-Khan AA, Lacy MQ. Pomalidomide-dexamethasone in refractory multiple myeloma: long-term follow-up of a multi-cohort phase II clinical trial. Leukemia 2017; 32:719-728. [PMID: 28860655 DOI: 10.1038/leu.2017.258] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 06/07/2017] [Accepted: 07/05/2017] [Indexed: 11/09/2022]
Abstract
Despite therapeutic advances, multiple myeloma remains incurable, with limited options for patients with refractory disease. We conducted a large, multi-cohort clinical trial testing various doses and treatment schedules of pomalidomide and dexamethasone (Pom/dex) in patients with refractory multiple myeloma. Overall, 345 patients were enrolled to six cohorts based on number and type of prior lines of therapy, pomalidomide dose and schedule. Median prior lines of therapy were three with near universal prior exposure to proteasome inhibitors and/or immunomodulatory drugs. A confirmed response rate of 35% was noted for all cohorts (range 23-65%) with higher responses in cohorts with fewer prior lines of therapy. Median time to confirmed response was ⩽2 months and the longest progression-free survival and overall survival seen in any cohort were 13.1 and 47.9 months, respectively. Observed adverse reactions were as expected, with myelosuppression and fatigue being the most common hematologic and non-hematologic adverse events (AEs), respectively. Longer durations of treatment and response, higher response rates and fewer AEs were noted with the 2 mg pomalidomide dose. This is the longest follow-up data for Pom/dex in refractory multiple myeloma and will help shape the real-world utilization of this regimen.
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Affiliation(s)
- S Ailawadhi
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - J R Mikhael
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - B R LaPlant
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - K M Laumann
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - S Kumar
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - V Roy
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - D Dingli
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - P L Bergsagel
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - S V Rajkumar
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - R Fonseca
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - P Kapoor
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - T Sher
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - S R Hayman
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - A K Stewart
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - R A Kyle
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - W I Gonsalves
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - C B Reeder
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - R S Go
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - N Leung
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - T Kourelis
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - J A Lust
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
| | - S J Russell
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - A A Chanan-Khan
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Jacksonville, FL, USA
| | - M Q Lacy
- Division of Hematology and Medical Oncology, Department of Medicine, Mayo Clinic, Phoenix, AZ, USA
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16
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Chakraborty R, Muchtar E, Kumar SK, Buadi FK, Dingli D, Dispenzieri A, Hayman SR, Hogan WJ, Kapoor P, Lacy MQ, Leung N, Warsame R, Kourelis T, Gonsalves W, Gertz MA. Outcomes of maintenance therapy with lenalidomide or bortezomib in multiple myeloma in the setting of early autologous stem cell transplantation. Leukemia 2017; 32:712-718. [PMID: 28848227 DOI: 10.1038/leu.2017.256] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 07/20/2017] [Accepted: 08/02/2017] [Indexed: 01/04/2023]
Abstract
Post-transplant maintenance is widely used in multiple myeloma (MM); however, there is a lack of data on real-world outcomes. We have analyzed 577 patients with newly diagnosed MM undergoing early auto-transplantation between 2010 and 2015. A total of 341, 132 and 104 patients received no, lenalidomide (Len) or bortezomib (Bort) maintenance, respectively. Patients receiving Len or Bort maintenance had a higher incidence of high-risk cytogenetics by fluorescence in situ hybridization (31% (Len) vs 58% (Bort) vs 8% (No); P<0.001). Len maintenance led to a superior progression-free survival (PFS) compared with no maintenance (median, 37 vs 28 months, respectively; P=0.002; adjusted hazard ratio 0.48 (95% CI, 0.35-0.66)), including in subgroups with ISS stage III disease (median, 40 vs 24 months; P=0.008) and high-risk cytogenetics (median, 27 vs 16 months; P=0.032). Bort maintenance did not confer PFS benefit for the entire cohort, but improved PFS in the high-risk cytogenetic subgroup (median, 28 vs 16 months; P=0.035). Discontinuation due to toxicity was seen in 17 and 7% of patients receiving Len or Bort maintenance, respectively. Our results indicate that post-transplant maintenance with Len or Bort is well tolerated in clinical practice and improves PFS in high-risk subgroups of MM patients.
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Affiliation(s)
- R Chakraborty
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W J Hogan
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Warsame
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - T Kourelis
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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17
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Lakshman A, Alhaj Moustafa M, Rajkumar SV, Dispenzieri A, Gertz MA, Buadi FK, Lacy MQ, Dingli D, Fonder AL, Hayman SR, Hobbs MA, Gonsalves WI, Hwa YL, Kapoor P, Leung N, Go RS, Lin Y, Kourelis TV, Lust JA, Russell SJ, Zeldenrust SR, Kyle RA, Kumar SK. Natural history of t(11;14) multiple myeloma. Leukemia 2017; 32:131-138. [DOI: 10.1038/leu.2017.204] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/07/2017] [Accepted: 06/19/2017] [Indexed: 12/19/2022]
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18
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Ravi P, Kumar S, Gonsalves W, Buadi F, Lacy MQ, Go RS, Dispenzieri A, Kapoor P, Lust JA, Dingli D, Lin Y, Russell SJ, Leung N, Gertz MA, Kyle RA, Bergsagel PL, Rajkumar SV. Changes in uninvolved immunoglobulins during induction therapy for newly diagnosed multiple myeloma. Blood Cancer J 2017. [PMID: 28622306 PMCID: PMC5584483 DOI: 10.1038/bcj.2017.46] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 12/17/2022] Open
Abstract
Little is known about the impact of multiple myeloma (MM) treatment on uninvolved immunoglobulins (Ig). We identified 448 patients who received high-dose dexamethasone (HD-DEX), lenalidomide and dexamethasone (RD), bortezomib and dexamethasone (VD), bortezomib, cyclophosphamide and dexamethasone (VCD) or bortezomib, lenalidomide and dexamethasone (VRD) for newly diagnosed MM at our institution between 2000 and 2013, and who had available data on absolute lymphocyte count (ALC) and quantitative uninvolved Ig at baseline and at the end of four cycles of therapy. Changes in ALC and uninvolved Ig were significantly different across treatments, with VCD and HD-DEX producing reductions in uninvolved Ig, and RD, VD and VRD leading to increases in uninvolved Ig. In addition, treatment with RD, VD and VRD was independently associated with higher odds of achieving a ⩾25% increase in or normalization of the primary uninvolved Ig on multivariate analysis. Although achievement of a humoral response in the primary uninvolved Ig was associated with a higher odds of achieving VGPR or better after four cycles of therapy, it was not associated with improved overall survival. These data highlight the different mechanisms of action of MM drugs and point toward a possible role for the use of VCD in treating antibody-mediated autoimmune disease.
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Affiliation(s)
- P Ravi
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R S Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P L Bergsagel
- Division of Hematology and Oncology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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19
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Muchtar E, Dean DS, Dispenzieri A, Dingli D, Buadi FK, Lacy MQ, Hayman SR, Kapoor P, Leung N, Russell S, Lust JA, Lin Y, Warsame R, Gonsalves W, Kourelis TV, Go RS, Chakraborty R, Zeldenrust S, Kyle RA, Rajkumar SV, Kumar SK, Gertz MA. Prevalence and predictors of thyroid functional abnormalities in newly diagnosed AL amyloidosis. J Intern Med 2017; 281:611-619. [PMID: 28439924 DOI: 10.1111/joim.12617] [Citation(s) in RCA: 13] [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] [Indexed: 11/28/2022]
Abstract
BACKGROUND Data on the effect of systemic immunoglobulin light chain amyloidosis (AL amyloidosis) on thyroid function are limited. OBJECTIVE To assess the prevalence of hypothyroidism in AL amyloidosis patients and determine its predictors. METHODS 1142 newly diagnosed AL amyloidosis patients were grouped based on the thyroid-stimulating hormone (TSH) measurement at diagnosis: hypothyroid group (TSH above upper normal reference; >5 mIU L-1 ; n = 217, 19% of study participants) and euthyroid group (n = 925, 81%). Predictors for hypothyroidism were assessed in a binary multivariate model. Survival between groups was compared using the log-rank test and a multivariate analysis. RESULTS Patients with hypothyroidism were older, more likely to present with renal and hepatic involvement and had a higher light chain burden compared to patients in the euthyroid group. Higher proteinuria in patients with renal involvement and lower albumin in patients with hepatic involvement were associated with hypothyroidism. In a binary logistic regression model, age ≥65 years, female sex, renal involvement, hepatic involvement, kappa light chain restriction and amiodarone use were independently associated with hypothyroidism. Ninety-three per cent of patients in the hypothyroid group with free thyroxine measurement had normal values, consistent with subclinical hypothyroidism. Patients in the hypothyroid group had a shorter survival compared to patients in the euthyroid group (4-year survival 36% vs 43%; P = 0.008), a difference that was maintained in a multivariate analysis. CONCLUSION A significant proportion of patients with AL amyloidosis present with hypothyroidism, predominantly subclinical, which carries a survival disadvantage. Routine assessment of TSH in these patients is warranted.
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Affiliation(s)
- E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D S Dean
- Division of Diabetes, Endocrinology, Metabolism, and Nutrition, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - S Russell
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Yi Lin
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Warsame
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - T V Kourelis
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R S Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Chakraborty
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Hospitalist Services, Essentia Health St. Joseph's Hospital, Brainerd, MN, USA
| | - S Zeldenrust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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20
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Kapoor P, Hayes YO, Jarrell LT, Bellinger DA, Thomas RD, Lawson GW, Arkema JD, Fletcher CA, Nielsen JN. Evaluation of Anthelmintic Resistance and Exhaust Air Dust PCR as a Diagnostic Tool in Mice Enzootically Infected with Aspiculuris tetraptera. J Am Assoc Lab Anim Sci 2017; 56:273-289. [PMID: 28535863 PMCID: PMC5438921] [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] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/07/2016] [Accepted: 01/09/2017] [Indexed: 06/07/2023]
Abstract
The entry of infectious agents in rodent colonies occurs despite robust sentinel monitoring programs, strict quarantine measures, and stringent biosecurity practices. In light of several outbreaks with Aspiculuris tetraptera in our facilities, we investigated the presence of anthelmintic resistance and the use of exhaust air dust (EAD) PCR for early detection of A. tetraptera infection. To determine anthelmintic resistance, C57BL/6, DBA/2, and NCr nude mice were experimentally inoculated with embryonated A. tetraptera ova harvested from enzootically infected mice, followed by treatment with 150 ppm fenbendazole in feed, 150 ppm fenbendazole plus 5 ppm piperazine in feed, or 2.1 mg/mL piperazine in water for 4 or 8 wk. Regardless of the mouse strain or treatment, no A. tetraptera were recovered at necropsy, indicating the lack of resistance in the worms to anthelmintic treatment. In addition, 10 of 12 DBA/2 positive-control mice cleared the A. tetraptera infection without treatment. To evaluate the feasibility of EAD PCR for A. tetraptera, 69 cages of breeder mice enzootically infected with A. tetraptera were housed on a Tecniplast IVC rack as a field study. On day 0, 56% to 58% of the cages on this rack tested positive for A. tetraptera by PCR and fecal centrifugation flotation (FCF). PCR from EAD swabs became positive for A. tetraptera DNA within 1 wk of placing the above cages on the rack. When these mice were treated with 150 ppm fenbendazole in feed, EAD PCR reverted to pinworm-negative after 1 mo of treatment and remained negative for an additional 8 wk. The ability of EAD PCR to detect few A. tetraptera positive mice was investigated by housing only 6 infected mice on another IVC rack as a field study. The EAD PCR from this rack was positive for A. tetraptera DNA within 1 wk of placing the positive mice on it. These findings demonstrate that fenbendazole is still an effective anthelmintic and that EAD PCR is a rapid, noninvasive assay that may be a useful diagnostic tool for antemortem detection of A. tetraptera infection, in conjunction with fecal PCR and FCF.
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Affiliation(s)
- Pratibha Kapoor
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina;,
| | - Yumiko O Hayes
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | | | - Dwight A Bellinger
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Rhiannon D Thomas
- Department of Psychology and Neuroscience, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Gregory W Lawson
- Office of Laboratory Animal Care, University of California at Berkeley, Berkeley, California
| | - Jaclyn D Arkema
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Craig A Fletcher
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Judith N Nielsen
- Division of Laboratory Animal Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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21
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Tandon N, Muchtar E, Sidana S, Dispenzieri A, Lacy MQ, Dingli D, Buadi FK, Hayman SR, Chakraborty R, Hogan WJ, Gonsalves W, Warsame R, Kourelis TV, Leung N, Kapoor P, Kumar SK, Gertz MA. Revisiting conditioning dose in newly diagnosed light chain amyloidosis undergoing frontline autologous stem cell transplant: impact on response and survival. Bone Marrow Transplant 2017; 52:1126-1132. [DOI: 10.1038/bmt.2017.68] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/17/2017] [Accepted: 03/01/2017] [Indexed: 11/09/2022]
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22
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Chakraborty R, Muchtar E, Kumar SK, Jevremovic D, Buadi FK, Dingli D, Dispenzieri A, Hayman SR, Hogan WJ, Kapoor P, Lacy MQ, Leung N, Gertz MA. Risk stratification in myeloma by detection of circulating plasma cells prior to autologous stem cell transplantation in the novel agent era. Blood Cancer J 2016; 6:e512. [PMID: 27983726 PMCID: PMC5223152 DOI: 10.1038/bcj.2016.117] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 10/20/2016] [Accepted: 10/28/2016] [Indexed: 11/09/2022] Open
Abstract
The impact of circulating plasma cells (CPCs) prior to autologous stem cell transplantation (ASCT) for multiple myeloma has not been defined in the novel agent era. We evaluated the impact of pre-transplant CPCs, detected by six-color flow cytometry in patients undergoing early ASCT on post-transplant response, progression-free survival (PFS) and overall survival (OS). CPCs were detected in 162 out of 840 (19.3%) patients, with the median number of CPCs being 58 per 150 000 events. Ninety-nine percent of patients had received proteasome inhibitor and/or immunomodulator-based induction. The incidence of post-transplant stringent complete response (sCR) in the subgroups with and without CPCs was 15% and 38%, respectively, (P<0.001). The median PFS in the subgroups with and without CPCs was 15.1 (95% confidence interval (CI), 12.5-17.8) and 29.6 months (95% CI, 26.2-32.8), respectively, and the median OS was 41.0 months (95% CI, 32.6-58.2) and not reached (NR) (95% CI, 99.1-NR), respectively, (P<0.001 for both). On multivariate analysis for OS, factors independently predictive of mortality were the presence of CPCs (hazard ratio (HR) 2.5; 95% CI, 1.8-3.6; P<0.001) and sCR post transplant (HR 0.4; 95% CI, 0.2-0.6; P<0.001). Presence of CPCs prior to transplant has a high prognostic impact and should be prospectively validated in clinical trials.
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Affiliation(s)
- R Chakraborty
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Department of Internal Medicine, Hospitalist Services, Essentia Health-St Joseph's Medical Center, Brainerd, MN, USA
| | - E Muchtar
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Jevremovic
- Department of Laboratory Medicine and Pathology, Division of Hematopathology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W J Hogan
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, MN, USA
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23
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Singh H, Maurya RK, Kapoor P, Sharma P, Srivastava D. Subjective and objective evaluation of frontal smile esthetics in patients with facial asymmetry-a comparative cross-sectional study. Orthod Craniofac Res 2016; 20:8-20. [PMID: 27862935 DOI: 10.1111/ocr.12135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/09/2016] [Indexed: 11/27/2022]
Abstract
AIM AND OBJECTIVES To analyze the relationship between subjective and objective evaluations of pre-treatment posed smiles in patients with facial asymmetry and to assess the influence of dentofacial structures involved in asymmetry on the perception of smile attractiveness. SAMPLE Thirty-five patients (25 males and 10 females) between 18 and 25 years of age with facial asymmetry were selected. MATERIALS AND METHODS Pre-treatment clinical photographs of posed smiles were subjectively evaluated by a panel of 20 orthodontists, 20 oral surgeons, and 20 laypersons. A customized Smile Mesh program was used for objective evaluation of the same smiles. Direct comparison among three smile groups (unattractive, slightly attractive, and attractive) for different Smile Mesh measurements was carried out using two-way anova test. Additionally, linear regression was performed to evaluate whether these measurements could predict the attractiveness of captured smiles. RESULTS Patients with 'slightly attractive' smiles had a significantly greater distance between the incisal margin of the maxillary central incisor and the lower lip during smiling. The Smile Index was significantly greater in attractive smiles. However, based on the coefficients of linear regression, no objectively gathered measurement could predict smile attractiveness. CONCLUSIONS Attractiveness or unattractiveness of smiles in patients with facial asymmetry could not be predicted by any measurement of Smile Mesh. The presence of facial asymmetry did not significantly influence the perception of smile esthetics.
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Affiliation(s)
- H Singh
- Department of Orthodontics and Craniofacial Orthopedics, ESIC Dental College and Hospital, Delhi, India
| | - R K Maurya
- Sultania Infantry Line, Bhopal Military Station, Bhopal, India
| | - P Kapoor
- Department of Orthodontics and Craniofacial Orthopedics, ESIC Dental College and Hospital, Delhi, India
| | - P Sharma
- Department of Orthodontics and Craniofacial Orthopedics, ESIC Dental College and Hospital, Delhi, India
| | - D Srivastava
- Department of Oral and Cranio-Maxillofacial Surgery, ESIC Dental College and Hospital, Delhi, India
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24
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Moghanaki D, Harris E, Urdaneta A, Williams M, Kapoor P, Yu J, Schutzer M, Chang M, Hagan M. Multiparametric Magnetic Resonance Imaging Guided Salvage Low-Dose-Rate Brachytherapy for Locally Recurrent Prostate Cancer—A 15-Year Experience. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1203] [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: 10/20/2022]
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25
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Kahn J, Kapoor P, Kapoor R, Harris E, Sharma M, Schutzer M, Moghanaki D. Dosimetric Consequences and Acute Toxicity Following Perirectal Hydrogel Spacer Injection During Permanent Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1193] [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: 11/16/2022]
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26
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Chakraborty R, Muchtar E, Kumar S, Buadi FK, Dingli D, Dispenzieri A, Hayman SR, Hogan WJ, Kapoor P, Lacy MQ, Leung N, Gertz MA. The impact of induction regimen on transplant outcome in newly diagnosed multiple myeloma in the era of novel agents. Bone Marrow Transplant 2016; 52:34-40. [PMID: 27548464 DOI: 10.1038/bmt.2016.214] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/14/2016] [Accepted: 07/08/2016] [Indexed: 12/22/2022]
Abstract
We compared overall survival (OS) of 1017 patients with newly diagnosed multiple myeloma (MM) who were treated with different novel agent-based induction regimens and who underwent early autologous stem cell transplant (ASCT). Subgroups were defined by type of induction therapy: cyclophosphamide-bortezomib-dexamethasone (CyBorD; n=193), bortezomib-dexamethasone (Vd; n=64), lenalidomide-dexamethasone (Rd; n=251), bortezomib-lenalidomide-dexamethasone (VRd; n=126), thalidomide-dexamethasone (Td; n=155) and vincristine-doxorubicin-dexamethasone or dexamethasone alone (VAD/Dex; n=228). The median follow-up of the surviving patients was 66.7 months. The 5-year OS rates with CyBorD, Vd, Rd, VRd, Td and VAD/Dex were 79.2%, 72.3%, 79.2%, 79.0%, 57.4% and 63.4%, respectively (log-rank, P<0.001). In a multivariate analysis, after controlling for important patient and disease variables, VRd had a superior OS compared with CyBorD (hazard ratio (HR), 0.32; 95% confidence interval (CI), 0.10-0.88; P=0.03) and Vd (HR, 0.16; 95% CI, 0.04-0.52; P=0.002). In conclusion, our study demonstrates that among patients completing induction therapy and continuing to early transplant, VRd induction leads to improved OS compared with CyBorD and Vd regimens.
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Affiliation(s)
- R Chakraborty
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.,Hospitalist Services, Essentia Health-St. Joseph's Medical Center, Brainerd, MN, USA
| | - E Muchtar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W J Hogan
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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27
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Ravi P, Kumar S, Larsen JT, Gonsalves W, Buadi F, Lacy MQ, Go R, Dispenzieri A, Kapoor P, Lust JA, Dingli D, Lin Y, Russell SJ, Leung N, Gertz MA, Kyle RA, Bergsagel PL, Rajkumar SV. Evolving changes in disease biomarkers and risk of early progression in smoldering multiple myeloma. Blood Cancer J 2016; 6:e454. [PMID: 27471870 PMCID: PMC5030386 DOI: 10.1038/bcj.2016.65] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Accepted: 06/23/2016] [Indexed: 01/07/2023] Open
Abstract
We studied 190 patients with smoldering multiple myeloma (SMM) at our institution between 1973 and 2014. Evolving change in monoclonal protein level (eMP) was defined as ⩾10% increase in serum monoclonal protein (M) and/or immunoglobulin (Ig) (M/Ig) within the first 6 months of diagnosis (only if M-protein ⩾3 g/dl) and/or ⩾25% increase in M/Ig within the first 12 months, with a minimum required increase of 0.5 g/dl in M-protein and/or 500 mg/dl in Ig. Evolving change in hemoglobin (eHb) was defined as ⩾0.5 g/dl decrease within 12 months of diagnosis. A total of 134 patients (70.5%) progressed to MM over a median follow-up of 10.4 years. On multivariable analysis adjusting for factors known to predict for progression to MM, bone marrow plasma cells ⩾20% (odds ratio (OR)=3.37 (1.30-8.77), P=0.013), eMP (OR=8.20 (3.19-21.05), P<0.001) and eHb (OR=5.86 (2.12-16.21), P=0.001) were independent predictors of progression within 2 years of SMM diagnosis. A risk model comprising these variables was constructed, with median time to progression of 12.3, 5.1, 2.0 and 1.0 years among patients with 0-3 risk factors respectively. The 2-year progression risk was 81.5% in individuals who demonstrated both eMP and eHb, and 90.5% in those with all three risk factors.
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Affiliation(s)
- P Ravi
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - J T Larsen
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - W Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P L Bergsagel
- Division of Hematology and Oncology, Mayo Clinic Arizona, Scottsdale, AZ, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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28
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Gonsalves WI, Rajkumar SV, Dispenzieri A, Dingli D, Timm MM, Morice WG, Lacy MQ, Buadi FK, Go RS, Leung N, Kapoor P, Hayman SR, Lust JA, Russell SJ, Zeldenrust SR, Hwa L, Kourelis TV, Kyle RA, Gertz MA, Kumar SK. Quantification of circulating clonal plasma cells via multiparametric flow cytometry identifies patients with smoldering multiple myeloma at high risk of progression. Leukemia 2016; 31:130-135. [PMID: 27457702 DOI: 10.1038/leu.2016.205] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 05/24/2016] [Accepted: 06/06/2016] [Indexed: 12/11/2022]
Abstract
The presence of high numbers of circulating clonal plasma cells (cPCs) in patients with smoldering multiple myeloma (SMM), detected by a slide-based immunofluorescence assay, has been associated with a shorter time to progression (TTP) to MM. The significance of quantifying cPCs via multiparameter flow cytometry, a much more readily available diagnostic modality, in patients with SMM has not been evaluated. This study evaluated 100 patients with a known or new diagnosis of SMM who were seen at the Mayo Clinic, Rochester from January 2008 until December 2013. Patients with ⩾150 cPCs (N=9) were considered to have high number of cPCs based on the 97% specificity and 78% PPV of progression to MM within 2 years of cPC assessment. The median TTP of patients with ⩾150 cPCs was 9 months compared with not reached for patients with <150 cPCs (P<0.001). Thus, quantification of cPCs via multiparametric flow cytometry identifies patients with SMM at very high risk of progression to MM within 2 years and warrants confirmation in larger studies. In the future, this may allow reclassification of such patients as having MM requiring therapy prior to them enduring end-organ damage.
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Affiliation(s)
- W I Gonsalves
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - M M Timm
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - W G Morice
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - R S Go
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - S R Zeldenrust
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - L Hwa
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - T V Kourelis
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- The Divisions of Hematology and Blood and Marrow Transplantation, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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29
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Majithia N, Rajkumar SV, Lacy MQ, Buadi FK, Dispenzieri A, Gertz MA, Hayman SR, Dingli D, Kapoor P, Hwa L, Lust JA, Russell SJ, Go RS, Kyle RA, Kumar SK. Early relapse following initial therapy for multiple myeloma predicts poor outcomes in the era of novel agents. Leukemia 2016; 30:2208-2213. [PMID: 27211270 DOI: 10.1038/leu.2016.147] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/01/2016] [Accepted: 05/09/2016] [Indexed: 11/09/2022]
Abstract
Outcomes for patients with multiple myeloma (MM) have improved in recent years owing to use of novel agents and high-dose therapy followed by autologous stem cell transplant (ASCT). We analyzed the outcomes of 511 consecutive patients treated with novel therapies at our institution between 2006 and 2014 to determine the impact of relapse within 12 months of initiating treatment. A total of 82 patients (16.0%) experienced early relapse, with median time to relapse of 8.0 months (95% confidence interval (CI); 6.3, 8.9). Median overall survival (OS) was significantly worse for this group at 21.0 months (95% CI; 16.3, 27.2) vs not reached (NR) (95% CI; 96.3, NR) for those with late relapse (P<0.001). Survival outcomes remained poor among early relapse patients irrespective of depth of response to initial therapy. In multivariate analysis, low albumin and high-risk cytogenetics predicted early relapse. Outcomes of early relapse from early ASCT were also considered; median OS from ASCT for those relapsing within 12 months was 23.1 months (95% CI; 15.7, 32.4) vs 122.2 months (95% CI; 111.5, 122.2) for the remaining patients (P<0.001). Early relapse remains a marker of poor prognosis in the current era, and such patients should be targeted for clinical trials.
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Affiliation(s)
- N Majithia
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - L Hwa
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R S Go
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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30
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Gonsalves WI, Rajkumar SV, Gertz MA, Dispenzieri A, Lacy MQ, Buadi FK, Dingli D, Go RS, Leung N, Kapoor P, Hayman SR, Lust JA, Russell SJ, Zeldenrust SR, Hwa YL, Kourelis TV, Kyle RA, Kumar SK. Clinical course and outcomes of patients with multiple myeloma who relapse after autologous stem cell therapy. Bone Marrow Transplant 2016; 51:1156-8. [DOI: 10.1038/bmt.2016.91] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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31
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Wang Y, Kapoor P, Parks R, Silva-Sanchez A, Alam SM, Verkoczy L, Liao HX, Zhuang Y, Burrows P, Levinson M, Elgavish A, Cui X, Haynes BF, Schroeder H. HIV-1 gp140 epitope recognition is influenced by immunoglobulin DH gene segment sequence. Immunogenetics 2016; 68:145-55. [PMID: 26687685 PMCID: PMC4729650 DOI: 10.1007/s00251-015-0890-x] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 12/04/2015] [Indexed: 12/31/2022]
Abstract
Complementarity Determining Region 3 of the immunoglobulin (Ig) H chain (CDR-H3) lies at the center of the antigen-binding site where it often plays a decisive role in antigen recognition and binding. Amino acids encoded by the diversity (DH) gene segment are the main component of CDR-H3. Each DH has the potential to rearrange into one of six DH reading frames (RFs), each of which exhibits a characteristic amino acid hydrophobicity signature that has been conserved among jawed vertebrates by natural selection. A preference for use of RF1 promotes the incorporation of tyrosine into CDR-H3 while suppressing the inclusion of hydrophobic or charged amino acids. To test the hypothesis that these evolutionary constraints on DH sequence influence epitope recognition, we used mice with a single DH that has been altered to preferentially use RF2 or inverted RF1. B cells in these mice produce a CDR-H3 repertoire that is enriched for valine or arginine in place of tyrosine. We serially immunized this panel of mice with gp140 from HIV-1 JR-FL isolate and then used enzyme-linked immunosorbent assay (ELISA) or peptide microarray to assess antibody binding to key or overlapping HIV-1 envelope epitopes. By ELISA, serum reactivity to key epitopes varied by DH sequence. By microarray, sera with Ig CDR-H3s enriched for arginine bound to linear peptides with a greater range of hydrophobicity but had a lower intensity of binding than sera containing Ig CDR-H3s enriched for tyrosine or valine. We conclude that patterns of epitope recognition and binding can be heavily influenced by DH germ line sequence. This may help explain why antibodies in HIV-infected patients must undergo extensive somatic mutation in order to bind to specific viral epitopes and achieve neutralization.
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Affiliation(s)
- Yuge Wang
- Department of Microbiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Pratibha Kapoor
- Department of Biostatistics, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Robert Parks
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Aaron Silva-Sanchez
- Department of Microbiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - S Munir Alam
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Laurent Verkoczy
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Hua-Xin Liao
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Yingxin Zhuang
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Peter Burrows
- Department of Microbiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Michael Levinson
- Department of Microbiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Ada Elgavish
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Xiangqin Cui
- Department of Biostatistics, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Barton F Haynes
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Harry Schroeder
- Department of Microbiology, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
- Department of Medicine, The University of Alabama at Birmingham, Birmingham, AL, 35294, USA.
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32
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Vaishnavi C, Singh M, Kapoor P, Kochhar R. Clinical and demographic profile of patients reporting for Clostridium difficile infection in a tertiary care hospital. Indian J Med Microbiol 2015; 33:326-7. [PMID: 25866002 DOI: 10.4103/0255-0857.153570] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- C Vaishnavi
- Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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33
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Kourelis TV, Buadi FK, Gertz MA, Lacy MQ, Kumar SK, Kapoor P, Go RS, Lust JA, Hayman SR, Rajkumar V, Zeldenrust SR, Russell SJ, Dingli D, Lin Y, Leung N, Hwa YL, Gonsalves W, Kyle RA, Dispenzieri A. Risk factors for and outcomes of patients with POEMS syndrome who experience progression after first-line treatment. Leukemia 2015; 30:1079-85. [DOI: 10.1038/leu.2015.344] [Citation(s) in RCA: 25] [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: 09/29/2015] [Revised: 11/16/2015] [Accepted: 12/02/2015] [Indexed: 11/09/2022]
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Kapoor P, Kapoor R, Curran B. SU-D-210-07: The Dependence On Acoustic Velocity of Medium On the Needle Template and Electronic Grid Alignment in Ultrasound QA for Prostate Brachytherapy. Med Phys 2015. [DOI: 10.1118/1.4923922] [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: 11/07/2022] Open
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Misra R, Prasad KN, Amrin N, Kapoor P, Singh S, Ghar M. Absence of multidrug resistance inSalmonella entericaserotypes Typhi and Paratyphi A isolates with intermediate susceptibility to ciprofloxacin: Table 1. Trans R Soc Trop Med Hyg 2015; 109:538-40. [DOI: 10.1093/trstmh/trv036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 04/20/2015] [Indexed: 11/13/2022] Open
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Gonsalves WI, Leung N, Rajkumar SV, Dispenzieri A, Lacy MQ, Hayman SR, Buadi FK, Dingli D, Kapoor P, Go RS, Lin Y, Russell SJ, Lust JA, Zeldenrust S, Kyle RA, Gertz MA, Kumar SK. Improvement in renal function and its impact on survival in patients with newly diagnosed multiple myeloma. Blood Cancer J 2015; 5:e296. [PMID: 25794132 PMCID: PMC4382661 DOI: 10.1038/bcj.2015.20] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [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: 02/01/2015] [Accepted: 02/02/2015] [Indexed: 11/09/2022] Open
Abstract
Renal impairment (RI) is seen in over a quarter of patients with newly diagnosed multiple myeloma (NDMM). It is not clear if reversal of RI improves the outcome to that expected for NDMM patients without RI. We evaluated 1135 consecutive patients with NDMM seen at the Mayo Clinic between January 2003 and December 2012. RI was defined as having a creatinine clearance (CrCl) <40ml/min. The median overall survival (OS) for patients with RI at diagnosis receiving and not receiving novel agent induction therapy was not reached vs 46 months (P<0.001). The median OS for patients with CrCl ⩾40 ml/min at diagnosis, CrCl <40 ml/min at diagnosis but improved to ⩾40 ml/min and CrCl <40 ml/min at diagnosis and remained <40 ml/min, were 112, 56 and 33 months, respectively (P<0.001). The complete renal response rate for patients with RI at diagnosis receiving novel agent induction therapy compared to the rest was 40 vs 16% (P<0.001). In conclusion, patients with reversal of RI have improved outcomes, but it remains inferior to patients with normal renal function at diagnosis. These results have implications for identifying early treatment strategies for patients at risk of developing renal insufficiency.
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Affiliation(s)
- W I Gonsalves
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - R S Go
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Y Lin
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - J A Lust
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S Zeldenrust
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - R A Kyle
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- Divisions of Hematology and Nephrology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
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Silva-Sanchez A, Liu CR, Vale AM, Khass M, Kapoor P, Elgavish A, Ivanov II, Ippolito GC, Schelonka RL, Schoeb TR, Burrows PD, Schroeder HW. Violation of an evolutionarily conserved immunoglobulin diversity gene sequence preference promotes production of dsDNA-specific IgG antibodies. PLoS One 2015; 10:e0118171. [PMID: 25706374 PMCID: PMC4338297 DOI: 10.1371/journal.pone.0118171] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 01/08/2015] [Indexed: 11/24/2022] Open
Abstract
Variability in the developing antibody repertoire is focused on the third complementarity determining region of the H chain (CDR-H3), which lies at the center of the antigen binding site where it often plays a decisive role in antigen binding. The power of VDJ recombination and N nucleotide addition has led to the common conception that the sequence of CDR-H3 is unrestricted in its variability and random in its composition. Under this view, the immune response is solely controlled by somatic positive and negative clonal selection mechanisms that act on individual B cells to promote production of protective antibodies and prevent the production of self-reactive antibodies. This concept of a repertoire of random antigen binding sites is inconsistent with the observation that diversity (DH) gene segment sequence content by reading frame (RF) is evolutionarily conserved, creating biases in the prevalence and distribution of individual amino acids in CDR-H3. For example, arginine, which is often found in the CDR-H3 of dsDNA binding autoantibodies, is under-represented in the commonly used DH RFs rearranged by deletion, but is a frequent component of rarely used inverted RF1 (iRF1), which is rearranged by inversion. To determine the effect of altering this germline bias in DH gene segment sequence on autoantibody production, we generated mice that by genetic manipulation are forced to utilize an iRF1 sequence encoding two arginines. Over a one year period we collected serial serum samples from these unimmunized, specific pathogen-free mice and found that more than one-fifth of them contained elevated levels of dsDNA-binding IgG, but not IgM; whereas mice with a wild type DH sequence did not. Thus, germline bias against the use of arginine enriched DH sequence helps to reduce the likelihood of producing self-reactive antibodies.
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Affiliation(s)
- Aaron Silva-Sanchez
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Cun Ren Liu
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Andre M. Vale
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Program in Immunobiology, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mohamed Khass
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Genetic Engineering Division, National Research Center of Egypt, Ad Doqi, Egypt
| | - Pratibha Kapoor
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Ada Elgavish
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Ivaylo I. Ivanov
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Gregory C. Ippolito
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Robert L. Schelonka
- Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Trenton R. Schoeb
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Peter D. Burrows
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Harry W. Schroeder
- Department of Medicine, Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail:
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Gautam A, Kapoor P, Chaudhary K, Kumar R, Raghava GPS. Tumor homing peptides as molecular probes for cancer therapeutics, diagnostics and theranostics. Curr Med Chem 2015; 21:2367-91. [PMID: 24533809 DOI: 10.2174/0929867321666140217122100] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 06/20/2013] [Accepted: 07/04/2013] [Indexed: 11/22/2022]
Abstract
Cancer is one of the leading causes of mortality worldwide, with more than 10 million new cases each year. Despite the presence of several anticancer agents, cancer treatment is still not very effective. Main reasons behind this high mortality rate are the lack of screening tests for early diagnosis, and non-availability of tumor specific drug delivery system. Most of the current anticancer drugs are unable to differentiate between cancerous and normal cells, leading to systemic toxicity, and adverse side effects. In order to tackle this problem, a considerable progress has been made over the years to identify peptides, which specifically bind to the tumor cells, and tumor vasculature (tumor homing peptides). With the advances in phage display technology, and combinatorial libraries like one-bead one-compound library, several hundreds of tumor homing peptides, and their derivatives, which have potential to detect tumor in vivo, and deliver anticancer agents specifically to the tumor site, have been discovered. Currently, many tumor homing peptide-based therapies for cancer treatment and diagnosis are being tested in various phases of clinical trials. In this review, we have discussed the progress made so far in the identification of tumor homing peptides, and their applications in cancer therapeutics, diagnosis, and theranostics. In addition, a brief discussion on tumor homing peptide resource, and in silico designing of tumor homing peptides has also been provided.
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Affiliation(s)
| | | | | | | | | | - G P S Raghava
- Bioinformatics Centre, CSIRInstitute of Microbial Technology, Chandigarh-160036, India.
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Kapoor P, Lawson GW. Response to protocol review scenario: Cooperation and compassion. Lab Anim (NY) 2014; 44:14-5. [PMID: 25526052 DOI: 10.1038/laban.669] [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: 11/09/2022]
Affiliation(s)
| | - G W Lawson
- DLAM, University of California, Los Angeles, CA
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Paul RC, Kapoor P, Baidya .B, Kapoor R. Basic Chromium(III) Formate: Reaction of Chromiiim(III) Chloride with Formic Acid. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1979-0206] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Chromium(III) Chloride, Basic Chromium(III) Formate, IR, Thermogravimetry, Magnetic Moment Chromium(III) chloride reacts with anhydrous formic acid to give basic chromium(III) formate [Cr3O(OOCH)6(H2O)2(HCOOH)](OOCH), HCOOH. Its reactions with bases (B) give compounds of the general composition [Cr30(C00CH)6(B)3](00CH). The title compound has been characterized by infrared spectral data, temperature range (266-110K) magnetic moment and thermogravimetry.
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Affiliation(s)
- R. C. Paul
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - P. Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - . B. Baidya
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - R. Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
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Kapoor R, Sharma R, Kapoor P. Dioxobis(Carboxylato)Chromium(VI) and Oxo(Carboxylato)Chromium(III): Reactions of CrO3 with Carboxylic Acid Anhydrides. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1984-1214] [Citation(s) in RCA: 4] [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] [Indexed: 11/15/2022]
Abstract
Reactions of carboxylic acid anhydrides [(RCO)2O where R = CH3, C2H5, n-C3H7 and CHCl2] with excess of chromium (VI) oxide at low temperatures yield chromyl carboxylates, CrO2(OOCR)2. These compounds are non-conducting in polar organic solvents. IR spectra suggest the presence of both unidentate and bidentate carboxylato groups and discrete Cr = 0 units. The 1H NMR spectra show the presence of only one type of carboxylato group.
Reactions of carboxylic acid anhydrides with CrO3 in equimolar ratio yield reduced chromium(III) com pounds o f the type CrO(OOCR) at room temperature. Their millimolar solutions in C6H5NO2, CH3NO2 and CH3CN are non-conducting. IR spectra, magnetic susceptibility and some other properties have been investigated. Both types of compounds are polymeric in nature having covalent structures.
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Affiliation(s)
- Ramesh Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Ramneek Sharma
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Pratibha Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
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Kapoor R, Kapoor P, Sharma R. Reactions of Chromyl Chloride with Carboxylic Acids and Carboxylic Acid Anhydrides. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1985-0217] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Chromyl Chloride reacts with carboxylic acids [RCOOH where R = C2H5, n-C3H7, CH2CI, CHCl2 and CCI3] to give reduced chromium(III) carboxylates, [Cr3 O(OOCR)6 (H2O)3 ]Cl. Magnetic susceptibility, UV-visible and IR measurements are all consistent with their trinuclear basic structures. Reactions of chromyl chloride with carboxylic acid anhydrides [(RCO)2O where R = CH3 , C2H5 and n-C3H7 ] give dinuclear oxo-bridged complexes of the type, [Cr2O(OOOCR)3 ]Cl. These compounds behave as non-electrolytes in polar organic solvents. IR spectra suggest the presence of bridging carboxylato groups containing Cr-O -Cr chains. Their low magnetic moment values suggest polymeric structures exhibiting antiferromagnetic coupling between Cr atoms.
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Affiliation(s)
- Ramesh Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Pratibha Kapoor
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Ramneek Sharma
- Department of Chemistry, Panjab University, Chandigarh-160014, India
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Kumar SK, Dispenzieri A, Lacy MQ, Gertz MA, Buadi FK, Pandey S, Kapoor P, Dingli D, Hayman SR, Leung N, Lust J, McCurdy A, Russell SJ, Zeldenrust SR, Kyle RA, Rajkumar SV. Continued improvement in survival in multiple myeloma: changes in early mortality and outcomes in older patients. Leukemia 2014; 28:1122-8. [PMID: 24157580 PMCID: PMC4000285 DOI: 10.1038/leu.2013.313] [Citation(s) in RCA: 988] [Impact Index Per Article: 98.8] [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: 10/01/2013] [Accepted: 10/15/2013] [Indexed: 12/23/2022]
Abstract
Therapy for multiple myeloma (MM) has markedly changed in the past decade with the introduction of new drugs, but it is not clear whether the improvements have been sustained. We studied 1038 patients diagnosed between 2001 and 2010, grouping patients into two 5-year periods by diagnosis, 2001-2005 and 2006-2010. The median estimated follow-up for the cohort was 5.9 years with 47% alive at the last follow-up. The median overall survival (OS) for the entire cohort was 5.2 years: 4.6 years for patients in the 2001-2005 group compared with 6.1 years for the 2006-2010 cohort (P=0.002). The improvement was primarily seen among patients over 65 years, the 6-year OS improving from 31 to 56%, P<0.001. Only 10% of patients died during the first year in the latter group, compared with 16% in the earlier cohort (P<0.01), suggesting improvement in early mortality. The improved outcomes were linked closely to the use of one or more new agents in initial therapy. The current results confirm continued survival improvement in MM and highlight the impact of initial therapy with novel agents. Most importantly, we demonstrate that the improved survival is benefitting older patients and that early mortality in this disease has reduced considerably.
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Affiliation(s)
- S K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S Pandey
- Division of Nephrology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - D Dingli
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S R Hayman
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - N Leung
- 1] Division of Hematology, Mayo Clinic, Rochester, MN, USA [2] Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - J Lust
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - A McCurdy
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S J Russell
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | - R A Kyle
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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Gonsalves WI, Rajkumar SV, Gupta V, Morice WG, Timm MM, Singh PP, Dispenzieri A, Buadi FK, Lacy MQ, Kapoor P, Gertz MA, Kumar SK. Quantification of clonal circulating plasma cells in newly diagnosed multiple myeloma: implications for redefining high-risk myeloma. Leukemia 2014; 28:2060-5. [PMID: 24618735 DOI: 10.1038/leu.2014.98] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 02/21/2014] [Indexed: 12/22/2022]
Abstract
The presence of clonal circulating plasma cells (cPCs) is a marker of high-risk disease in all stages of monoclonal gammopathies. However, the prognostic utility of quantitating cPCs using multiparametric flow cytometry in multiple myeloma (MM) patients with current treatments is unknown. There were 157 consecutive patients with newly diagnosed MM seen at the Mayo Clinic, Rochester from 2009 to 2011 that had their peripheral blood evaluated for cPCs by multiparameter flow cytometry. Survival analysis was performed by the Kaplan-Meier method and differences assessed using the log-rank test. Using a receiver operating characteristics (ROC) analysis, ⩾400 cPCs were considered as the optimal cutoff for defining high-risk disease. The presence of ⩾400 cPCs was associated with higher plasma cell (PC) proliferation and adverse cytogenetics. The median time-to-next-treatment and overall survival (OS) in patients with ⩾400 cPCs (N=37, 24%) was 14 months and 32 months compared with 26 months and not reached for the rest (P<0.001). In a multivariable model, the presence of ⩾400 cPCs and older age adversely affected OS. Flow cytometry to quantify cPCs is a valuable test for risk stratifying newly diagnosed MM patients in the era of novel agents. Future studies are needed to determine its role in developing a risk-adapted treatment approach.
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Affiliation(s)
- W I Gonsalves
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - S V Rajkumar
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - V Gupta
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - W G Morice
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - M M Timm
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - P P Singh
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - A Dispenzieri
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - F K Buadi
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - M Q Lacy
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - P Kapoor
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - M A Gertz
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - S K Kumar
- 1] Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA [2] Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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Kapoor P, Pannu APS, Rana LK, Kapoor R, Hundal G, Hundal MS. Synthesis and X-ray crystal structures of N,N,N′,N′-tetraalkylpyridine-2,6-dithiocarboxamides (S-dapt) complexes of cobalt(II) and nickel(II). J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.859679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pratibha Kapoor
- Department of Chemistry, Panjab University, Chandigarh, India
| | - Ajay Pal Singh Pannu
- Institute of Fundamental Sciences, Massey University, Palmerston North, New Zealand
| | | | - Ramesh Kapoor
- Department of Chemistry, Indian Institute of Science Education and Research, Chandigarh, India
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Vale AM, Kapoor P, Skibinski GA, Elgavish A, Mahmoud TI, Zemlin C, Zemlin M, Burrows PD, Nobrega A, Kearney JF, Briles DE, Schroeder HW. The link between antibodies to OxLDL and natural protection against pneumococci depends on D(H) gene conservation. ACTA ACUST UNITED AC 2013; 210:875-90. [PMID: 23589567 PMCID: PMC3646500 DOI: 10.1084/jem.20121861] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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] [Indexed: 01/11/2023]
Abstract
Germline DH sequences are required for the generation of natural antibodies reactive to bacterial phosphorylcholine but not for those reactive to self-antigen. Selection and physiological production of protective natural antibodies (NAbs) have been associated with exposure to endogenous antigens. The extent to which this association depends on germline NAb sequence is uncertain. Here we show that alterations in germline DH sequence can sever the association between the production of self-reactive NAbs and NAbs that afford protection against a pathogen. In unmanipulated hosts, the availability of the evolutionarily conserved DFL16.1 gene segment sequence profoundly affected the serum levels of NAbs against bacterial phosphorylcholine but not oxidized low-density lipoprotein. Mice with partially altered DFL16.1 sequence could use N nucleotides to recreate the amino acid sequence associated with the classical protective T15 idiotype–positive NAbs, whereas those without DFL16.1 could not. DFL16.1 gene–deficient mice proved more susceptible to challenge with live Streptococcus pneumoniae. Our findings indicate that although production of self-reactive NAbs can be independent of germline DH sequence, their capacity to provide protection against pathogens cannot. The potential relevance of these findings for the rational design of vaccines is discussed.
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Affiliation(s)
- Andre M Vale
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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Srivastava G, Rana V, Lacy MQ, Buadi FK, Hayman SR, Dispenzieri A, Gertz MA, Dingli D, Zeldenrust S, Russell S, McCurdy A, Kapoor P, Kyle R, Rajkumar SV, Kumar S. Long-term outcome with lenalidomide and dexamethasone therapy for newly diagnosed multiple myeloma. Leukemia 2013; 27:2062-6. [PMID: 23648667 DOI: 10.1038/leu.2013.143] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 05/01/2013] [Indexed: 01/25/2023]
Abstract
The combination of lenalidomide and dexamethasone (Len-Dex) is a commonly used initial therapy for newly diagnosed multiple myeloma (MM). Although the initial response rates and toxicity are well known, long-term outcome is not well described. We studied 286 consecutive patients with newly diagnosed MM initially treated with Len-Dex. The median (range) age at diagnosis was 63 (28-92) years, 166 (58%) patients ≤ 65 years and 175 (61%) male. The median estimated duration on Len-Dex was 5.3 months with overall response (≥ partial response) of 72%, including 26% with very good partial response or better. The median overall survival (OS) from the diagnosis was not reached (NR) and the estimated 5-year survival was 71%. The median time to first disease progression, irrespective of transplant status, was 30.2 months. Overall, 143 (50%) patients underwent stem cell transplant. The median OS was NR for patients ≤ 70 years and 5.8 years for the older patients (P=0.01). The 5-year OS estimate for patients in International Staging System stage 1, 2 and 3 were 82, 65, and 44% respectively. There were 21 new second malignancies after MM diagnosis (6.6%). The median survival exceeding 7 years reflects the efficacy of novel agents. The risk of second malignancies doesn't appear to be excessive in this population.
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Affiliation(s)
- G Srivastava
- Division of Hematology and Blood and Marrow Transplant, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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Khass M, Buckley K, Kapoor P, Schelonka RL, Watkins LS, Zhuang Y, Schroeder HW. Recirculating bone marrow B cells in C57BL/6 mice are more tolerant of highly hydrophobic and highly charged CDR-H3s than those in BALB/c mice. Eur J Immunol 2013; 43:629-40. [PMID: 23225217 DOI: 10.1002/eji.201242936] [Citation(s) in RCA: 12] [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: 08/22/2012] [Revised: 11/01/2012] [Accepted: 11/30/2012] [Indexed: 11/07/2022]
Abstract
To test whether mechanisms controlling the range of diversity of the developing antibody repertoire in C57BL/6 mice (IgH(b)) operate similarly to those identified in BALB/c mice (IgH(a)), we compared the sequences of VH 7183-containing H-chain transcripts from sorted adult bone marrow C57BL/6 B-cell subsets with those previously obtained from BALB/c mice. Patterns of VDJ gene segment utilization and CDR-H3 amino acid composition, charge, and average length in C57BL/6 pro-B cells were similar, although not identical, to BALB/c pro-B cells. However, C57BL/6 mature, recirculating B cells failed to demonstrate the reduction in the use of VH81X and the narrowing in the range of variance of CDR-H3 hydrophobicity that characterizes B-cell maturation in BALB/c mice. To further test the ability of the C57BL/6 strain to discard B cells expressing highly charged CDR-H3s, we introduced a mutant IgH(a) DH allele that forces use of arginine, asparagine, and histidine. Unlike BALB/c mice, C57BL/6 mice congenic for the charged DH maintained normal numbers of mature, recirculating B cells that were enriched for charged CDR-H3s. Together these findings indicate that the mature C57BL/6 B-cell pool permits expression of immunoglobulins with antigen-binding sites that are typically discarded during late-stage bone marrow B-cell development in BALB/c mice.
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Affiliation(s)
- Mohamed Khass
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
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Jetley S, Rana S, Khan S, Zeeba JS, Hassan MJ, Kapoor P. Bone marrow negative visceral leishmaniasis in an adolescent male. Iran J Parasitol 2013; 8:182-5. [PMID: 23682278 PMCID: PMC3655258] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 12/14/2012] [Indexed: 11/17/2022]
Abstract
Visceral Leishmaniasis or Kala Azar is endemic in certain regions of India. In endemic areas, the constellation of fever, progressive weight loss, weakness, pronounced splenomegaly, anemia, leukopenia, and hypergammaglobulinemia is highly suggestive of visceral leishmaniasis. Demonstration of the parasite in liver, splenic or bone marrow aspirates is confirmatory. We present a case in which Leishmania donovani (LD) bodies were demonstrated on splenic aspirate. We were unable to demonstrate LD bodies on bone marrow aspiration.
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Affiliation(s)
- S Jetley
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India
| | - S Rana
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Corresponding author:Tel.: +011-26059688,
| | - S Khan
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India
| | - JS Zeeba
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India
| | - MJ Hassan
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India
| | - P Kapoor
- Department of Pathology, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India,Department of Medicine, Hamdard Institute of Medical Sciences and Research, New Delhi, 110062, India
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