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O'Donnell EK, Borden BA, Ghobrial IM. Early Detection of Precursor Diseases of Multiple Myeloma. Hematol Oncol Clin North Am 2024; 38:743-753. [PMID: 38724285 DOI: 10.1016/j.hoc.2024.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Precursor diseases of multiple myeloma (MM) are monoclonal gammopathy of uncertain significance and smoldering MM. While it is well known that a percentage of those affected by these conditions will progress to MM, it is difficult to predict who will progress and when, and guidelines for screening for these conditions are lacking. Moreover, there are various models for risk stratification, though there are ongoing efforts to improve these models in order to predict who may benefit from treatment. Finally, there are various clinical trials, both past and ongoing, expanding the scope of possible treatment options for precursor diseases.
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Affiliation(s)
- Elizabeth K O'Donnell
- Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA.
| | - Brittany A Borden
- Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA
| | - Irene M Ghobrial
- Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02115, USA; Harvard Medical School, 25 Shattuck Street, Boston, MA 02115, USA
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2
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Rögnvaldsson S, Thorsteinsdóttir S, Syriopoulou E, Sverrisdottir I, Turesson I, Eythorsson E, Oskarsson JT, Long TE, Vidarsson B, Onundarson PT, Agnarsson BA, Sigurdardottir M, Olafsson I, Thorsteinsdottir I, Aspelund T, Gislason GK, Olafsson A, Sigurdsson JK, Hultcrantz M, Durie BGM, Harding S, Bjorkholm M, Landgren O, Love TJ, Kristinsson SY. Prior cancer and risk of monoclonal gammopathy of undetermined significance: a population-based study in Iceland and Sweden. Haematologica 2024; 109:2250-2255. [PMID: 38205512 PMCID: PMC11215371 DOI: 10.3324/haematol.2023.284365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024] Open
Abstract
There is some evidence that a prior cancer is a risk factor for the development of multiple myeloma (MM). If this is true, prior cancer should be associated with a higher prevalence or increased progression rate of monoclonal gammopathy of undetermined significance (MGUS), the precursor of MM and related disorders. Those with a history of cancer might therefore constitute a target population for MGUS screening. This two-part study is the first study to evaluate a relationship between MGUS and prior cancers. First, we evaluated whether prior cancers were associated with having MGUS at the time of screening in the Iceland Screens Treats or Prevents Multiple Myeloma (iStopMM) study that includes 75,422 individuals screened for MGUS. Next, we evaluated the association of prior cancer and the progression of MGUS to MM and related disorders in a population-based cohort of 13,790 Swedish individuals with MGUS. A history of prior cancer was associated with a modest increase in the risk of MGUS (odds ratio=1.10; 95% confidence interval: 1.00-1.20). This excess risk was limited to prior cancers in the year preceding MGUS screening. A history of prior cancer was associated with progression of MGUS, except for myeloid malignancies which were associated with a lower risk of progression (hazard ratio=0.37; 95% confidence interval: 0.16-0.89; P=0.028). Our findings indicate that a prior cancer is not a significant etiological factor in plasma cell disorders. The findings do not warrant MGUS screening or different management of MGUS in those with a prior cancer.
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Affiliation(s)
- Sæmundur Rögnvaldsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík.
| | - Sigrun Thorsteinsdóttir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Rigshospitalet, Copenhagen, Denmark
| | | | | | | | - Elias Eythorsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | - Thorir Einarsson Long
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Skåne University Hospital, Lund
| | - Brynjar Vidarsson
- Landspítali - The National University Hospital of Iceland, Reykjavík
| | - Pall Torfi Onundarson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | - Bjarni A Agnarsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | - Isleifur Olafsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | - Thor Aspelund
- Faculty of Medicine, University of Iceland, Reykjavík
| | | | | | | | - Malin Hultcrantz
- Myeloma Service, Dept. of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Brian G M Durie
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Outpatient Cancer Center, Los Angeles, CA
| | | | - Magnus Bjorkholm
- Karolinska Institutet, Stockholm, Sweden; Karolinska University Hospital, Stockholm
| | - Ola Landgren
- Myeloma Program, Department of Medicine, University of Miami, Sylvester Comprehensive Cancer Center, Miami
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | - Sigurdur Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
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3
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Malard F, Neri P, Bahlis NJ, Terpos E, Moukalled N, Hungria VTM, Manier S, Mohty M. Multiple myeloma. Nat Rev Dis Primers 2024; 10:45. [PMID: 38937492 DOI: 10.1038/s41572-024-00529-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/16/2024] [Indexed: 06/29/2024]
Abstract
Multiple myeloma (MM) is a haematological lymphoid malignancy involving tumoural plasma cells and is usually characterized by the presence of a monoclonal immunoglobulin protein. MM is the second most common haematological malignancy, with an increasing global incidence. It remains incurable because most patients relapse or become refractory to treatments. MM is a genetically complex disease with high heterogeneity that develops as a multistep process, involving acquisition of genetic alterations in the tumour cells and changes in the bone marrow microenvironment. Symptomatic MM is diagnosed using the International Myeloma Working Group criteria as a bone marrow infiltration of ≥10% clonal plasma cells, and the presence of at least one myeloma-defining event, either standard CRAB features (hypercalcaemia, renal failure, anaemia and/or lytic bone lesions) or biomarkers of imminent organ damage. Younger and fit patients are considered eligible for transplant. They receive an induction, followed by consolidation with high-dose melphalan and autologous haematopoietic cell transplantation, and maintenance therapy. In older adults (ineligible for transplant), the combination of daratumumab, lenalidomide and dexamethasone is the preferred option. If relapse occurs and requires further therapy, the choice of therapy will be based on previous treatment and response and now includes immunotherapies, such as bi-specific monoclonal antibodies and chimeric antigen receptor T cell therapy.
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Affiliation(s)
- Florent Malard
- Sorbonne Université, Centre de Recherche Saint-Antoine INSERM UMRs938, Service d'Hématologie Clinique et de Thérapie Cellulaire, Hôpital Saint Antoine, AP-HP, Paris, France.
| | - Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Nizar J Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Evangelos Terpos
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Nour Moukalled
- Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | | | - Salomon Manier
- Department of Hematology, Lille University Hospital and INSERM UMR-S1277 and CNRS UMR9020, Lille, France
| | - Mohamad Mohty
- Sorbonne Université, Centre de Recherche Saint-Antoine INSERM UMRs938, Service d'Hématologie Clinique et de Thérapie Cellulaire, Hôpital Saint Antoine, AP-HP, Paris, France.
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4
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Mian H, Kaiser M, Fonseca R. Still high risk? A review of translocation t(14;16) in multiple myeloma. Am J Hematol 2024. [PMID: 38874195 DOI: 10.1002/ajh.27419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 05/01/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Multiple myeloma (MM) is a heterogeneous and complex disease, both in mutational biology as well as in the clinical presentation of patients. While tailored and biomarker-targeted therapy remains the direct goal for patient-centric management, existing therapies in MM remain largely uniform. Translocation t(14;16) is a rare primary genetic event found in less than 5% of patients with newly diagnosed MM. Here, we present an overview of the biology of t(14;16), epidemiology, clinical presentation, prognostic impact, and discuss the future clinical and therapeutic strategies for targeting this rare yet high-risk group in MM to optimize patient outcomes.
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Affiliation(s)
- Hira Mian
- Department of Oncology, McMaster University, Ontario, Canada
| | - Martin Kaiser
- Division of Genetics and Epidemiology, The Institute of Cancer Research, London, UK
- Department of Haematology, The Royal Marsden Hospital, London, UK
| | - Rafael Fonseca
- Division of Hematology and Medical Oncology, Mayo Clinic in Arizona, Phoenix, Arizona, USA
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5
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Røllum-Larsen J, Engell AE, Diaz-delCastillo M, Heegaard AM, Jørgensen HL. Association of routine hematological parameters with the development of monoclonal gammopathies: a case-control study of 134,740 patients : Resubmitted to annals of Hematology 26 March 2024. Ann Hematol 2024:10.1007/s00277-024-05822-9. [PMID: 38842565 DOI: 10.1007/s00277-024-05822-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
The diagnosis of multiple myeloma requires detection of paraproteinemia and confirmation of monoclonal bone marrow infiltration, along with signs of end-organ damage. Despite the increasing prevalence, serum paraproteinemia is not routinely measured. We examined the relationship between alterations in routine hematological parameters and the development of paraproteinemia in a case-control study. Data was retrieved from a laboratory database in the capital region of Denmark between 01/01/2012 and 31/12/2022. Patients were included if they had a test for paraproteinemia (n = 134,740) and at least one prior hematological parameter (white blood cells, hemoglobin and platelet count) with a minimum follow-up of 1 year.Between 96,999 and 103,590 patients were included in each of the three hematological groups. We found white blood cell count and the presence of paraproteinemia followed an inverse J-shaped curve, with the highest presence below 3 × 109/L and above > 9 × 109/L. The adjusted OR below and above the nadir of 4 × 109/L was 1.61 (95% CI 1.25; 2.08, p < 0.0001) and 1.03 (95% CI 1.03; 1.04, p < 0.0001). Hemoglobin levels were inversely associated the presence of paraproteinemia, with the highest association below 6 mmol/L with an OR of 1.30 (95% CI 1.28; 1.32, p < 0.0001) adjusted for age and gender. Platelet count followed a U-shaped curve with the highest association at < 100 × 109/L. The adjusted OR below and above the nadir of 250 × 109/L was 1.13 (95% CI 1.10; 1.17, p < 0.0001) and 1.10 (95% CI 1.08; 1.12, p < 0.0001) respectively. In conclusion, all three parameters showed significant association with later paraproteinemia.
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Affiliation(s)
- Jakob Røllum-Larsen
- Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Anna Elise Engell
- Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
| | - Marta Diaz-delCastillo
- Department of Forensic Medicine, University of Aarhus, Aarhus, Denmark
- Danish Spatial Imaging Consortium (DanSIC), Aarhus, Denmark
| | - Anne-Marie Heegaard
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, Copenhagen, 2100, Denmark
| | - Henrik Løvendahl Jørgensen
- Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, 2200 KBH N, Copenhagen, Denmark
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6
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Sverrisdottir I, Thorsteinsdottir S, Rognvaldsson S, Aspelund T, Vidarsson B, Onundarson PT, Agnarsson BA, Sigurdardottir M, Thorsteinsdóttir I, Sveinsdottir SV, Palmason R, Olafsson I, Sigurdsson F, Thordardóttir AR, Eythorsson E, Jonsson A, Palsson R, Indridason OS, Gislason GK, Olafsson A, Sigurdsson J, Steingrímsdóttir H, Einarsson Long T, Hultcrantz M, Durie BGM, Harding S, Landgren O, Kristinsson SY, Love TJ. Association Between Autoimmune Diseases and Monoclonal Gammopathy of Undetermined Significance : An Analysis From a Population-Based Screening Study. Ann Intern Med 2024; 177:711-718. [PMID: 38768457 DOI: 10.7326/m23-2867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/22/2024] Open
Abstract
BACKGROUND Monoclonal gammopathy of undetermined significance (MGUS) is a precursor of multiple myeloma (MM) and related conditions. In previous registry-based, retrospective studies, autoimmune diseases have been associated with MGUS. However, these studies were not based on a screened population and are therefore prone to ascertainment bias. OBJECTIVE To examine whether MGUS is associated with autoimmune diseases. DESIGN A cross-sectional study within iStopMM (Iceland Screens, Treats, or Prevents MM), a prospective, population-based screening study of MGUS. SETTING Icelandic population of adults aged 40 years or older. PATIENTS 75 422 persons screened for MGUS. MEASUREMENTS Poisson regression for prevalence ratios (PRs) of MGUS among persons with or without an autoimmune disease, adjusted for age and sex. RESULTS A total of 10 818 participants had an autoimmune disorder, of whom 599 had MGUS (61 with a prior clinical diagnosis and 538 diagnosed at study screening or evaluation). A diagnosis of an autoimmune disease was not associated with MGUS (PR, 1.05 [95% CI, 0.97 to 1.15]). However, autoimmune disease diagnoses were associated with a prior clinical diagnosis of MGUS (PR, 2.11 [CI, 1.64 to 2.70]). LIMITATION Registry data were used to gather information on autoimmune diseases, and the homogeneity of the Icelandic population may limit the generalizability of these results. CONCLUSION The study did not find an association between autoimmune disease and MGUS in a systematically screened population. Previous studies not done in systematically screened populations have likely been subject to ascertainment bias. The findings indicate that recommendations to routinely screen patients with autoimmune disease for MGUS may not be warranted. PRIMARY FUNDING SOURCE The International Myeloma Foundation and the European Research Council.
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Affiliation(s)
- Ingigerdur Sverrisdottir
- University of Iceland, Reykjavik, Iceland, and Sahlgrenska University Hospital, Gothenburg, Sweden (I.S.)
| | | | - Sæmundur Rognvaldsson
- University of Iceland and Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (S.R., R.Palmason, S.Y.K., T.J.L.)
| | - Thor Aspelund
- University of Iceland, Reykjavik, Iceland (T.A., A.R.T., G.K.G., A.O., J.S.)
| | - Brynjar Vidarsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Pall Torfi Onundarson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Bjarni A Agnarsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Margret Sigurdardottir
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Ingunn Thorsteinsdóttir
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Signy Vala Sveinsdottir
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Robert Palmason
- University of Iceland and Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland, and Skåne University Hospital, Lund, Sweden (R.Palsson)
| | - Isleifur Olafsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Fridbjorn Sigurdsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | | | - Elias Eythorsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Asbjorn Jonsson
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Runolfur Palsson
- University of Iceland and Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (S.R., R.Palmason, S.Y.K., T.J.L.)
| | - Olafur Skuli Indridason
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | | | - Andri Olafsson
- University of Iceland, Reykjavik, Iceland (T.A., A.R.T., G.K.G., A.O., J.S.)
| | - Jon Sigurdsson
- University of Iceland, Reykjavik, Iceland (T.A., A.R.T., G.K.G., A.O., J.S.)
| | - Hlif Steingrímsdóttir
- Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (B.V., P.T.O., B.A.A., M.S., I.T., S.V.S., I.O., F.S., E.E., A.J., O.S.I., H.S.)
| | - Thorir Einarsson Long
- University of Iceland, Reykjavik, Iceland, and Skåne University Hospital, Lund, Sweden (T.E.L.)
| | - Malin Hultcrantz
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York (M.H.)
| | - Brian G M Durie
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Outpatient Cancer Center, Los Angeles, California (B.G.M.D.)
| | | | - Ola Landgren
- Myeloma Program, Department of Medicine, University of Miami, Sylvester Comprehensive Cancer Center, Miami, Florida (O.L.)
| | - Sigurdur Yngvi Kristinsson
- University of Iceland and Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (S.R., R.Palmason, S.Y.K., T.J.L.)
| | - Thorvardur Jon Love
- University of Iceland and Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland (S.R., R.Palmason, S.Y.K., T.J.L.)
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7
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Eythorsson E, Rognvaldsson S, Thorsteinsdottir S, Einarsson Long T, Reed ER, Sigurdardottir GA, Vidarsson B, Onundarson PT, Agnarsson BA, Sigurdardottir M, Olafsson I, Thorsteinsdottir I, Sveinsdottir SV, Sigurdsson F, Thordardottir AR, Palsson R, Indridason OS, Jonsson A, Gislason GK, Olafsson A, Sigurdsson J, Steingrimsdottir H, Hultcrantz M, Durie BGM, Harding S, Landgren O, Aspelund T, Love TJ, Kristinsson SY. Development of a Multivariable Model to Predict the Need for Bone Marrow Sampling in Persons With Monoclonal Gammopathy of Undetermined Significance : A Cohort Study Nested in a Clinical Trial. Ann Intern Med 2024; 177:449-457. [PMID: 38560901 DOI: 10.7326/m23-2540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM) are asymptomatic precursor conditions to multiple myeloma and related disorders. Smoldering multiple myeloma is distinguished from MGUS by 10% or greater bone marrow plasma cells (BMPC) on sampling, has a higher risk for progression, and requires specialist management. OBJECTIVE To develop a multivariable prediction model that predicts the probability that a person with presumed MGUS has 10% or greater BMPC (SMM or worse by bone marrow criteria) to inform the decision to obtain a bone marrow sample and compare its performance to the Mayo Clinic risk stratification model. DESIGN iStopMM (Iceland Screens, Treats or Prevents Multiple Myeloma), a prospective population-based screening study of MGUS. (ClinicalTrials.gov: NCT03327597). SETTING Icelandic population of adults aged 40 years or older. PATIENTS 1043 persons with IgG, IgA, light-chain, and biclonal MGUS detected by screening and an interpretable bone marrow sample. MEASUREMENTS Monoclonal gammopathy of undetermined significance isotype; monoclonal protein concentration; free light-chain ratio; and total IgG, IgM, and IgA concentrations were used as predictors. Bone marrow plasma cells were categorized as 0% to 4%, 5% to 9%, 10% to 14%, or 15% or greater. RESULTS The c-statistic for SMM or worse was 0.85 (95% CI, 0.82 to 0.88), and calibration was excellent (intercept, -0.07; slope, 0.95). At a threshold of 10% predicted risk for SMM or worse, sensitivity was 86%, specificity was 67%, positive predictive value was 32%, and negative predictive value was 96%. Compared with the Mayo Clinic model, the net benefit for the decision to refer for sampling was between 0.13 and 0.30 higher over a range of plausible low-risk thresholds. LIMITATION The prediction model will require external validation. CONCLUSION This accurate prediction model for SMM or worse was developed in a population-based cohort of persons with presumed MGUS and may be used to defer bone marrow sampling and referral to hematology. PRIMARY FUNDING SOURCE International Myeloma Foundation and the European Research Council.
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Affiliation(s)
- Elias Eythorsson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | - Saemundur Rognvaldsson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | - Sigrun Thorsteinsdottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland, and Department of Hematology, Rigshospitalet, Copenhagen, Denmark (S.T.)
| | - Thorir Einarsson Long
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland, and Skåne University Hospital, Lund, Sweden (T.E.L.)
| | - Elin Ruth Reed
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Gudrun Asta Sigurdardottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Brynjar Vidarsson
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Pall Torfi Onundarson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | - Bjarni A Agnarsson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | - Margret Sigurdardottir
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Isleifur Olafsson
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Ingunn Thorsteinsdottir
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Signy Vala Sveinsdottir
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Fridbjorn Sigurdsson
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Asdis Rosa Thordardottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Runolfur Palsson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | - Olafur Skuli Indridason
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
| | | | - Gauti Kjartan Gislason
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Andri Olafsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Jon Sigurdsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Hlif Steingrimsdottir
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland (B.V., M.S., I.O., I.T., S.V.S., F.S., H.S.)
| | - Malin Hultcrantz
- Myeloma Service, Memorial Sloan Kettering Cancer Center, New York, New York (M.H.)
| | - Brian G M Durie
- Cedars-Sinai Samuel Oschin Cancer Center, Los Angeles, California (B.G.M.D.)
| | - Stephen Harding
- The Binding Site, Birmingham, West Midlands, United Kingdom (S.H.)
| | - Ola Landgren
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, Florida (O.L.)
| | - Thor Aspelund
- Center for Public Health Sciences, University of Iceland, Reykjavík, Iceland (T.A.)
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.R.R., G.A.S., A.R.T., G.K.G., A.O., J.S., T.J.L.)
| | - Sigurdur Yngvi Kristinsson
- Landspítali-The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavík, Iceland (E.E., S.R., P.T.O., B.A.A., R.P., O.S.I., S.Y.K.)
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8
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Dhodapkar MV. Immune-Pathogenesis of Myeloma. Hematol Oncol Clin North Am 2024; 38:281-291. [PMID: 38195307 DOI: 10.1016/j.hoc.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
This research indicates that monoclonal gammopathy of undetermined significance (MGUS) and myeloma may stem from chronic immune activation and inflammation, causing immune dysfunction and spatial immune exclusion. As the conditions progress, a shift toward myeloma involves ongoing immune impairment, affecting both innate and adaptive immunity. Intriguingly, even in advanced myeloma stages, susceptibility to immune effector cells persists. This insight highlights the intricate interplay between immune responses and the development of these conditions, paving the way for potential therapeutic interventions targeting immune modulation in the management of MGUS and myeloma.
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Affiliation(s)
- Madhav V Dhodapkar
- Department of Hematology/Medical Oncology, Emory University, Winship Cancer Institute, 1365 Clifton Road, Atlanta, GA 30332, USA.
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9
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Wu AHB, Wang CC. Serum free light chains among twin siblings: is the kappa/lambda ratio genetically determined? Biomarkers 2024; 29:100-104. [PMID: 38353603 DOI: 10.1080/1354750x.2024.2319308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/10/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Serum kappa, lambda, the K/λ light chain concentrations are used for screening, diagnosis, and monitoring of patients with multiple myeloma and other plasma cell disorders. Biological variation studies conducted on healthy subjects showed that free light chains have a low within and high between-individual variation. We determined if this variation were genetically linked. METHODS We obtained a single serum sample from 16 pairs of identical twins, 8 neonate twins, and 19 presumed directly-related siblings children, measured Κ and λ light chains and computed the Κ/λ ratio. RESULTS As expected, Κ/λ results from each twin neonate were near identical (reflecting maternal/placental transfer). For older children and adult twins, the Κ/λ ratio form a cluster of results that were a subset of the reference range. There was one outlier, a female with a high, different from her twin sister. She likely had a monoclonal gammopathy (no followup was possible). Excluding this pair, results from neonate twins (14.4% ±10.3%) and non-neonate twins (18.0 ± 15.3%) were not significantly different. Results between non-twin siblings were more scattered (53.2%±53.4%) and different from neonate and non-neonate twin adult and children. CONCLUSION We suggest that the Κ/λ free light chains may be genetically linked.
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Affiliation(s)
- Alan H B Wu
- Department of Laboratory Medicine, University of California, San Francisco, CA, USA
| | - Chia-Ching Wang
- Department of Medicine, Division of Hematology-Oncology, University of California, San Francisco, CA, USA
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10
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Drayson M, Jennis T, Laketic-Ljubojevic I, Patel D, Pratt G, Renwick S, Richter A, Wheeler R, Sheldon J, Sadler R, Stapleton M, Willis F, Whiston M. Laboratory practice is central to earlier myeloma diagnosis: Utilizing a primary care diagnostic tool and laboratory guidelines integrated into haematology services. Br J Haematol 2024; 204:476-486. [PMID: 38168756 DOI: 10.1111/bjh.19224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/13/2023] [Accepted: 11/13/2023] [Indexed: 01/05/2024]
Abstract
Treatment advances have greatly improved survival, but myeloma is among the worst of all cancers for delayed diagnosis, causing serious morbidities and early deaths. This delay is largely because the symptom profile of myeloma has very low specificity, and in primary care, myeloma is rare. However, initiating the journey to diagnosis simply requires considering myeloma and sending blood to test for monoclonal immunoglobulin. Laboratory tests reliably detect monoclonal immunoglobulin, which is present in 99% of myeloma cases, so why do health care systems have such a problem with delayed diagnosis? The Myeloma UK early diagnosis programme has brought together diverse expertise to investigate this problem, and this article was prepared by the programme's working group for laboratory best practice. It reviews evidence for test requesting, analysis and reporting, for which there is large variation in practice across the United Kingdom. It presents a 'GP Myeloma diagnostic tool' and how it can be integrated into laboratory practice alongside a laboratory best practice tool. It proposes improved requesting and integration with haematology services for reporting and interpretation. Here the laboratory has a central role in creating efficient and cost-effective pathways for appropriate and timely bone marrow examination for myeloma diagnosis.
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Affiliation(s)
- Mark Drayson
- Clinical Immunology Service, University of Birmingham, Birmingham, UK
| | | | | | - Dina Patel
- UK NEQAS Immunology, Immunochemistry & Allergy, Sheffield Teaching Hospitals, Sheffield, UK
| | - Guy Pratt
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | | | - Alex Richter
- Clinical Immunology Service, University of Birmingham, Birmingham, UK
| | - Rachel Wheeler
- Protein Reference Unit, South West London Pathology, St Georges Hospital, London, UK
| | - Joanna Sheldon
- Protein Reference Unit, South West London Pathology, St Georges Hospital, London, UK
| | - Ross Sadler
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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11
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Rögnvaldsson S, Thorsteinsdóttir S, Kristinsson SY. Screening in Multiple Myeloma and Its Precursors: Are We There Yet? Clin Chem 2024; 70:128-139. [PMID: 38175579 DOI: 10.1093/clinchem/hvad148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 06/05/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Multiple myeloma (MM) is a hematological malignancy that develops over years from the asymptomatic precursors, monoclonal gammopathy of undetermined significance, and smoldering multiple myeloma. Recent evidence shows that by initiating treatment at an asymptomatic stage, outcomes in MM can be significantly improved. However, a vast majority of MM patients are diagnosed after the development of symptomatic end-organ damage and cannot reap the benefits of early treatment. The precursors of MM are easily detected by serum protein electrophoresis and free light chain assay of the serum, raising the question of whether population-based screening could detect MM at an asymptomatic stage and significantly expand the availability of early treatment in MM. Screening is a hallmark of care in many malignancies, and there are accepted criteria for when screening is appropriate. CONTENT Here we review the available relevant evidence for the introduction of screening and discuss whether screening for MM and its precursors fulfills these criteria. We also highlight gaps in our current knowledge, most notably a lack of data on the benefits and harms of screening and the lack of a defined target population. There are ongoing studies that may fill these critical gaps in the literature, but their results are still pending. SUMMARY Screening could lead to a paradigm shift in the care of patients with MM, but critical scientific questions need to be answered before screening of healthy individuals can be recommended. In short, we should not screen for MM and its precursors-yet.
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Affiliation(s)
- Sæmundur Rögnvaldsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland
| | - Sigrún Thorsteinsdóttir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
| | - Sigurður Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali-The National University Hospital of Iceland, Reykjavík, Iceland
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12
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Wang W, Li J, Yang Y, Chen F, Xu T, Wang P, Wang Y, Maihemaiti A, Ren L, Lan T, Li P, Zhou C, Liu P. Update on the outcome of M-protein screening program of multiple myeloma in China: A 7-year cohort study. Cancer Med 2023; 13:e6859. [PMID: 38133437 PMCID: PMC10807560 DOI: 10.1002/cam4.6859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 12/04/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND To improve the early detection rate of multiple myeloma (MM), the M-protein screening system has been performed in the hospital population at Zhongshan Hospital Fudan University since 2014, with electrophoretic-based monoclonal immunoglobulin (M-protein) screening integrated into the blood biochemistry panel. This study updated 7-year follow-up findings of MM patients diagnosed by screening-driven and symptom-driven approaches. METHODS The retrospective study compared the characteristics and outcomes of patients diagnosed through two patterns by reviewing the plasma cell disease database from January 2014 to October 2021. The screening-driven group included patients diagnosed through the screening system during workups of unrelated medical conditions or routine checkups. In contrast, patients who visited or were referred to the hematological department due to myeloma-related end-organ damage were categorized into the symptom-driven group. RESULTS There were 3,110,218 serum protein electrophoresis (SPEP) tests performed during 7 years, with 1.95% (60,609) patients yielding positive SPEP results. Of 911 confirmed MM cases (excluding concurrent amyloidosis), 366 were assigned to the screening-driven group, while 545 were to the symptom-driven group. Compared to the symptom-driven group, the screening group had more IgG subtypes, earlier International Stage System stages, fewer disease-related symptoms, lower ECOG scores, less extramedullary disease, a lower percentage of bone marrow plasma cells, and a lower level of lactate dehydrogenase. Frontline response results of two groups were similar. Patients detected through screening had a significantly improved median progression-free survival (PFS) than the symptom-driven group (62.2 vs. 24.9 months, p < 0.001, HR: 2.12, 95% CIs: 1.69-2.65), with median follow-ups of 32.6 and 27.4 months. Furthermore, the median overall survival (OS) was significantly longer in patients of the screening group (not reached vs. 62.3 months, p < 0.001, HR: 2.49, 95% CIs: 1.81-3.41). After being adjusted for well-acknowledged myeloma prognostic factors, the screening-driven diagnostic pattern remained an independent prognostic factor indicating improved PFS and OS in MM patients. CONCLUSION Routine M-protein screening for MM in the hospital population results in an earlier diagnosis and better patient outcomes.
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Affiliation(s)
- Wenjing Wang
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Jing Li
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Yang Yang
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Feifei Chen
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Tianhong Xu
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Pu Wang
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Yawen Wang
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Aziguli Maihemaiti
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Liang Ren
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Tianwei Lan
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Panpan Li
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Chi Zhou
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
| | - Peng Liu
- Department of HematologyZhongshan Hospital Fudan UniversityShanghaiChina
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13
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Pérez-Escurza O, Flores-Montero J, Óskarsson JÞ, Sanoja-Flores L, Del Pozo J, Lecrevisse Q, Martín S, Reed ER, Hákonardóttir GK, Harding S, Þorsteinsdóttir S, Rögnvaldsson S, Love TJ, Durie B, Kristinsson SY, Orfao A. Immunophenotypic assessment of clonal plasma cells and B-cells in bone marrow and blood in the diagnostic classification of early stage monoclonal gammopathies: an iSTOPMM study. Blood Cancer J 2023; 13:182. [PMID: 38072838 PMCID: PMC10711003 DOI: 10.1038/s41408-023-00944-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/26/2023] [Accepted: 11/03/2023] [Indexed: 12/18/2023] Open
Abstract
Monoclonal gammopathy of undetermined significance (MGUS) is the earliest discernible stage of multiple myeloma (MM) and Waldenström's macroglobulinemia (WM). Early diagnosis of MG may be compromised by the low-level infiltration, undetectable to low-sensitive methodologies. Here, we investigated the prevalence and immunophenotypic profile of clonal (c) plasma cells (PC) and/or cB-lymphocytes in bone marrow (BM) and blood of subjects with a serum M-component from the iSTOPMM program, using high-sensitive next-generation flow cytometry (NGF), and its utility in the diagnostic classification of early-stage MG. We studied 164 paired BM and blood samples from 82 subjects, focusing the analysis on: 55 MGUS, 12 smoldering MM (SMM) and 8 smoldering WM (SWM). cPC were detected in 84% of the BM samples and cB-lymphocytes in 45%, coexisting in 39% of cases. In 29% of patients, the phenotypic features of cPC and/or cB-lymphocytes allowed a more accurate disease classification, including: 19/55 (35%) MGUS, 1/12 (8%) SMM and 2/8 (25%) SWM. Blood samples were informative in 49% of the BM-positive cases. We demonstrated the utility of NGF for a more accurate diagnostic classification of early-stage MG.
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Affiliation(s)
- Oihane Pérez-Escurza
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Juan Flores-Montero
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | | | - Luzalba Sanoja-Flores
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
- Institute of Biomedicine of Seville, Department of Hematology, University Hospital Virgen del Rocío of the Consejo Superior de Investigaciones Científicas (CSIC), University of Seville, Seville, Spain
| | - Julio Del Pozo
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Quentin Lecrevisse
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Silvia Martín
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Elín Ruth Reed
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
| | | | | | - Sigrún Þorsteinsdóttir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Rigshospitalet, Copenhagen, Denmark
| | - Sæmundur Rögnvaldsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Science, Landspitali University Hospital, Reykjavík, Iceland
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Science, Landspitali University Hospital, Reykjavík, Iceland
| | - Brian Durie
- Department of Hematology and Oncology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Sigurður Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Science, Landspitali University Hospital, Reykjavík, Iceland
| | - Alberto Orfao
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca); Cytometry Service, NUCLEUS; Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain.
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain.
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain.
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain.
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14
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Óskarsson JÞ, Rögnvaldsson S, Thorsteinsdottir S, Aspelund T, Gunnarsson SB, Hákonardóttir GK, Sigurðardóttir GÁ, Þórðardóttir ÁR, Gíslason GK, Ólafsson A, Sigurðsson JK, Eyþórsson E, Jónsson Á, Viðarsson B, Önundarson PT, Agnarsson BA, Pálmason R, Sigurðardóttir M, Þorsteinsdóttir I, Ólafsson Í, Harding S, Flores-Montero J, Orfao A, Durie BGM, Love TJ, Kristinsson SY. Determining hemodilution in diagnostic bone marrow aspirated samples in plasma cell disorders by next-generation flow cytometry: Proposal for a bone marrow quality index. Blood Cancer J 2023; 13:177. [PMID: 38040702 PMCID: PMC10692231 DOI: 10.1038/s41408-023-00951-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/03/2023] Open
Abstract
Hemodilution of bone marrow (BM) aspirates is a limitation of multiparameter flow cytometry (MFC) in plasma cell disorders. There is a need for a validated approach for assessing sample quality and the distribution of non-plasma cell BM populations by MFC could provide a solution. We evaluated BM-associated cell populations, assessed by next-generation flow cytometry (NGF) and white blood cell (WBC) count in 351 BM aspirated samples from 219 participants with plasma cell disorders in the Iceland Screens, Treats, or Prevents MM study (iStopMM), as markers of hemodilution by their discriminatory ability between first and (generally more hemodiluted) second pull BM aspirated samples. The most discriminating markers were used to derive a novel BM quality index (BMQI). Nucleated red blood cells and myeloid precursors provided the greatest discriminatory ability between first vs second pull samples (area under the curve (AUC): 0.87 and 0.85, respectively), significantly better than B cell precursors (AUC = 0.64; p < 0.001), mast cells (AUC = 0.65; p < 0.001), and the BM WBC count (AUC = 0.77; p < 0.05). We generated a novel BMQI that is intrinsic to current NGF protocols, for evaluating quality of diagnostic BM samples and suggest the use of a BMQI scoring system for interpreting results and guiding appropriate actions.
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Affiliation(s)
| | - Sæmundur Rögnvaldsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali University Hospital, Reykjavík, Iceland
| | - Sigrun Thorsteinsdottir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
| | - Thor Aspelund
- Public Health Sciences, University of Iceland, Reykjavík, Iceland
| | | | | | | | | | | | - Andri Ólafsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
| | | | | | | | | | | | | | - Róbert Pálmason
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali University Hospital, Reykjavík, Iceland
- Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | | | | | | | | | - Juan Flores-Montero
- Cancer Research Center (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca; Biomedical Research Institute of Salamanca (IBSAL) and CIBERONC, Salamanca, Spain
| | - Alberto Orfao
- Cancer Research Center (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca; Biomedical Research Institute of Salamanca (IBSAL) and CIBERONC, Salamanca, Spain
| | - Brian G M Durie
- Cedars-Sinai Samuel Oschin Cancer Center, Los Angeles, CA, USA
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali University Hospital, Reykjavík, Iceland
| | - Sigurdur Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Landspítali University Hospital, Reykjavík, Iceland
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15
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Sigurbergsdóttir AÝ, Rögnvaldsson S, Thorsteinsdóttir S, Sverrisdóttir I, Sigurðardóttir GÁ, Viðarsson B, Önundarson PT, Agnarsson BA, Sigurðardóttir M, Þorsteinsdóttir I, Ólafsson Í, Þórðardóttir ÁR, Gíslason GK, Ólafsson A, Hultcrantz M, Durie BGM, Harding S, Landgren O, Löve TJ, Kristinsson SY. Disease associations with monoclonal gammopathy of undetermined significance can only be evaluated using screened cohorts: results from the population-based iStopMM study. Haematologica 2023; 108:3392-3398. [PMID: 37439374 PMCID: PMC10690899 DOI: 10.3324/haematol.2023.283191] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/30/2023] [Indexed: 07/14/2023] Open
Abstract
Monoclonal gammopathy of undetermined significance (MGUS) is an asymptomatic precursor condition that precedes multiple myeloma and related disorders but has also been associated with other medical conditions. Since systematic screening is not recommended, MGUS is typically diagnosed due to underlying diseases and most cases are not diagnosed. Most previous studies on MGUS disease associations have been based on clinical cohorts, possibly resulting in selection bias. Here we estimate this selection bias by comparing clinically diagnosed and screened individuals with MGUS with regards to demographics, laboratory features, and comorbidities. A total of 75,422 participants in the Iceland Screens, Treats, or Prevents Multiple Myeloma (iStopMM) study were screened for MGUS by serum protein electrophoresis, immunofixation and free light chain assay (clinicaltrials gov. Identifier: NCT03327597). We identified 3,352 individuals with MGUS, whereof 240 had previously been clinically diagnosed (clinical MGUS), and crosslinked our data with large, nationwide registries for information on comorbidities. Those with clinical MGUS were more likely to have at least one comorbidity (odds ratio=2.24; 95% confidence interval: 1.30-4.19), and on average had more comorbidities than the screened MGUS group (3.23 vs. 2.36, mean difference 0.68; 95% confidence interval: 0.46-0.90). They were also more likely to have rheumatological disease, neurological disease, chronic kidney disease, liver disease, heart failure, or endocrine disorders. These findings indicate that individuals with clinical MGUS have more comorbidities than the general MGUS population and that previous studies have been affected by significant selection bias. Our findings highlight the importance of screening data when studying biological and epidemiological implications of MGUS.
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Affiliation(s)
| | - Sæmundur Rögnvaldsson
- University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | | | | | - Brynjar Viðarsson
- Landspítali - The National University Hospital of Iceland, Reykjavík
| | - Páll Torfi Önundarson
- University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | | | | | - Ísleifur Ólafsson
- Landspítali - The National University Hospital of Iceland, Reykjavík
| | | | | | | | | | | | | | - Ola Landgren
- Sylvester Comprehensive Cancer Center, Miami, FL
| | - Thorvarður Jón Löve
- University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík
| | - Sigurður Yngvi Kristinsson
- University of Iceland, Reykjavík, Iceland; Landspítali - The National University Hospital of Iceland, Reykjavík.
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16
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Rögnvaldsson S, Kristinsson SY. The force awakens, but questions remain: The future of MGUS. Br J Haematol 2023; 202:722-724. [PMID: 37278330 DOI: 10.1111/bjh.18904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/07/2023]
Affiliation(s)
- Saemundur Rögnvaldsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Landspítali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Sigurður Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Landspítali-The National University Hospital of Iceland, Reykjavik, Iceland
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17
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Holm H, Ivarsdottir EV, Olafsdottir T, Thorolfsdottir R, Eythorsson E, Norland K, Gisladottir R, Jonsdottir G, Unnsteinsdottir U, Sveinsdottir KE, Jonsson BA, Andresdottir M, Arnar DO, Arnthorsson AO, Birgisdottir K, Bjarnadottir K, Bjarnadottir S, Bjornsdottir G, Einarsson G, Eiriksdottir B, Gardarsdottir EE, Gislason T, Gottfredsson M, Gudmundsdottir S, Gudmundsson J, Gunnarsdottir K, Helgadottir A, Helgason D, Hinriksdottir I, Ingvarsson RF, Jonasdottir SS, Jonsdottir I, Karlsdottir TH, Kristinsdottir AM, Kristinsson SY, Kristjansdottir S, Love TJ, Ludviksdottir D, Masson G, Norddahl G, Olafsdottir T, Olafsson I, Rafnar T, Runolfsdottir HL, Saemundsdottir J, Sigurbjornsson S, Sigurdardottir K, Sigurdsson E, Sigurdsson MI, Sigurdsson EL, Steinthorsdottir V, Sveinbjornsson G, Thorarensen EA, Thorbjornsson B, Thorsteinsdottir B, Tragante V, Ulfarsson MO, Stefansson H, Gislason T, Kristjansson M, Palsson R, Sulem P, Thorsteinsdottir U, Thorgeirsson G, Gudbjartsson DF, Stefansson K. Physical and cognitive impact following SARS-CoV-2 infection in a large population-based case-control study. COMMUNICATIONS MEDICINE 2023; 3:94. [PMID: 37414856 DOI: 10.1038/s43856-023-00326-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 06/15/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Persistent symptoms are common after SARS-CoV-2 infection but correlation with objective measures is unclear. METHODS We invited all 3098 adults who tested SARS-CoV-2 positive in Iceland before October 2020 to the deCODE Health Study. We compared multiple symptoms and physical measures between 1706 Icelanders with confirmed prior infection (cases) who participated, and 619 contemporary and 13,779 historical controls. Cases participated in the study 5-18 months after infection. RESULTS Here we report that 41 of 88 symptoms are associated with prior infection, most significantly disturbed smell and taste, memory disturbance, and dyspnea. Measured objectively, cases had poorer smell and taste results, less grip strength, and poorer memory recall. Differences in grip strength and memory recall were small. No other objective measure associated with prior infection including heart rate, blood pressure, postural orthostatic tachycardia, oxygen saturation, exercise tolerance, hearing, and traditional inflammatory, cardiac, liver, and kidney blood biomarkers. There was no evidence of more anxiety or depression among cases. We estimate the prevalence of long Covid to be 7% at a median of 8 months after infection. CONCLUSIONS We confirm that diverse symptoms are common months after SARS-CoV-2 infection but find few differences between cases and controls in objective parameters measured. These discrepancies between symptoms and physical measures suggest a more complicated contribution to symptoms related to prior infection than is captured with conventional tests. Traditional clinical assessment is not expected to be particularly informative in relating symptoms to a past SARS-CoV-2 infection.
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Affiliation(s)
- Hilma Holm
- deCODE genetics/Amgen Inc., Reykjavik, Iceland.
| | | | | | | | - Elias Eythorsson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | | | - Rosa Gisladottir
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Humanities, University of Iceland, Reykjavik, Iceland
| | | | | | | | | | | | - David O Arnar
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | | | | | - Solveig Bjarnadottir
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | | | | | | | - Thorarinn Gislason
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Magnus Gottfredsson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | | | | | | | - Dadi Helgason
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | | | - Ragnar F Ingvarsson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | | | | | | | | | - Sigurdur Yngvi Kristinsson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | - Thorvardur J Love
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Dora Ludviksdottir
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | | | | | - Isleifur Olafsson
- Clinical Laboratory Services, Diagnostics and Blood Bank, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | | | - Hrafnhildur L Runolfsdottir
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | | | | | | | - Engilbert Sigurdsson
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
- Mental Health Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Martin I Sigurdsson
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
- Perioperative Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Emil L Sigurdsson
- Department of Family Medicine, University of Iceland, Reykjavik, Iceland
- Development Centre for Primary Health Care in Iceland, Reykjavik, Iceland
| | | | | | | | | | | | | | - Magnus O Ulfarsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Faculty of Electrical and Computer Engineering, University of Iceland, Reykjavik, Iceland
| | | | | | - Mar Kristjansson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
| | - Runolfur Palsson
- Internal Medicine and Emergency Services, Landspitali-The National University Hospital of Iceland, Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | - Unnur Thorsteinsdottir
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Gudmundur Thorgeirsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Daniel F Gudbjartsson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland
- School of Engineering and Natural Sciences, University of Iceland, Reykjavik, Iceland
| | - Kari Stefansson
- deCODE genetics/Amgen Inc., Reykjavik, Iceland.
- Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland.
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18
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Bowcock S, Atkin C, Iqbal G, Pratt G, Yong K, Neal RD, Planche T, Karunanithi K, Jenkins S, Stern S, Arnott S, Toth P, Wandroo F, Dunn J, Drayson MT. Presenting Symptoms in Newly Diagnosed Myeloma, Relation to Organ Damage, and Implications for Symptom-Directed Screening: A Secondary Analysis from the Tackling Early Morbidity and Mortality in Myeloma (TEAMM) Trial. Cancers (Basel) 2023; 15:3337. [PMID: 37444449 PMCID: PMC10341254 DOI: 10.3390/cancers15133337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/26/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023] Open
Abstract
Multiple myeloma (MM) patients risk diagnostic delays and irreversible organ damage. In those with newly diagnosed myeloma, we explored the presenting symptoms to identify early signals of MM and their relationships to organ damage. The symptoms were recorded in patients' own words at diagnosis and included diagnostic time intervals. Those seen by a haematologist >6 months prior to MM diagnosis were classified as precursor disease (PD). Most (962/977) patients provided data. Back pain (38%), other pain (31%) and systemic symptoms (28%) predominated. Patients rarely complain of 'bone pain', simply 'pain'. Vertebral fractures are under-recognised as pathological and are the predominant irreversible organ damage (27% of patients), impacting the performance status (PS) and associated with back pain (odds ratio (OR) 6.14 [CI 4.47-8.44]), bone disease (OR 3.71 [CI 1.88-7.32]) and age >65 years (OR 1.58 [CI 1.15-2.17]). Renal failure is less frequent and associated with gastrointestinal symptoms (OR 2.23 [CI1.28-3.91]), age >65 years (OR 2.14 [CI1.28-3.91]) and absence of back pain (OR 0.44 [CI 0.29-0.67]). Patients with known PD (n = 149) had fewer vertebral fractures (p = 0.001), fewer adverse features (p = 0.001), less decline in PS (p = 0.001) and a lower stage (p = 0.04) than 813 with de novo MM. Our data suggest subgroups suitable for trials of 'symptom-directed' screening: those with back pain, unexplained pain, a general decline in health or low-impact vertebral compression fractures.
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Affiliation(s)
- Stella Bowcock
- Department of Haematological Medicine, King’s College Hospital NHS Trust, London SE5 9RS, UK
- Princess Royal Hospital, King’s College Hospital NHS Trust, Orpington Common, London BR6 8ND, UK
| | - Catherine Atkin
- Institute of Inflammation and Ageing, University of Birmingham, Edgbaston, Birmingham B15 2GW, UK
| | - Gulnaz Iqbal
- Warwick Clinical Trials Unit, University of Warwick, Coventry CV4 7AL, UK
| | - Guy Pratt
- Queen Elizabeth Hospital, University Hospitals Birmingham NHS Trust, Birmingham B15 2TH, UK
| | - Kwee Yong
- Department of Haematology, UCL Cancer Institute, London NW1 2BU, UK
| | - Richard D. Neal
- Department of Primary Care Medicine, University of Exeter, Exeter EX1 2LU, UK
| | - Tim Planche
- Department of Medical Microbiology, St George’s Hospital NHS Trust, London SW17 0QT, UK
| | - Kamaraj Karunanithi
- Royal Stoke University Hospital, University Hospitals North Midlands NHS Trust, Stoke-on-Trent ST4 6QG, UK
| | - Stephen Jenkins
- Russell Halls Hospital, The Dudley Group NHS Foundation Trust, Dudley DY1 2HQ, UK
| | - Simon Stern
- Epsom and St Helier NHS Trust, London SM5 1AA, UK
| | | | - Peter Toth
- Sheffield Teaching Hospitals NHS Trust, Sheffield S10 2JF, UK
| | - Farooq Wandroo
- Sandwell General Hospital, Lyndon, West Bromwich, West Midlands B71 4HJ, UK
| | - Janet Dunn
- Warwick Clinical Trials Unit, University of Warwick, Coventry CV4 7AL, UK
| | - Mark T. Drayson
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, UK
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19
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Chen LY, Drayson M, Bunce C, Ramasamy K. Monoclonal gammopathy of increasing significance: time to screen? Haematologica 2023; 108:1476-1486. [PMID: 36373250 PMCID: PMC10233333 DOI: 10.3324/haematol.2022.281802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/28/2022] [Indexed: 11/11/2022] Open
Abstract
Monoclonal gammopathy (MG) is a frequently detected clonal B-cell or plasma-cell disorder. Importantly, every multiple myeloma (MM) case is preceded by MG. Although clinical algorithms now allow earlier treatment of patients with biomarkers of malignancy before MM-induced tissue damage (CRAB) occurs, most patients are still diagnosed late. It is important to revisit how MG should be managed in clinical practice and whether screening is required. As the prevalence of MG and other medical co-morbidities both rise with increasing age, the degree of contribution of MG to disease states other than malignant progression is often unclear. This can lead to monitoring lapses and under recognition of the organ dysfunction that can occur with monoclonal gammopathy of clinical significance (MGCS). Therefore, models of progression to MM and/or MGCS require further refinement. While MG is currently detected incidentally, a case for screening has been made with ongoing studies in this area. Screening has the potential benefit of earlier detection and prevention of both MGCS and delayed MM presentations, but important drawbacks include the psychosocial impact on individuals and resource burden on healthcare services. MG terminology should transition alongside our increasing understanding of the condition and genomic characterization that have already begun to revise the MG nomenclature. The biology of MG has been poorly understood and is often inferred from the biology of MM, which is unhelpful. We review the literature and case for MG screening in this paper. In particular, we highlight areas that require focus to establish screening for MG.
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Affiliation(s)
- Lucia Y Chen
- Oxford University Hospitals NHS Foundation Trust
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20
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Midha S, Nadeem O, Selamet U. Updates in Plasma Cell Dyscrasias and Related Monoclonal Immunoglobulin-Mediated Renal Disease. Semin Nephrol 2023; 42:151352. [PMID: 37257390 DOI: 10.1016/j.semnephrol.2023.151352] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Pathogenic roles of monoclonal immunoglobulins in kidney disease have been attributed previously to malignant plasma cell and lymphoproliferative disorders such as multiple myeloma, lymphoplasmacytic lymphoma, chronic lymphocytic leukemia, or amyloid light chain amyloidosis. Improved technology, advancements in molecular diagnostics, and highly sensitive imaging techniques have established the need to redefine monoclonal gammopathies and the kidney disorders that are associated with monoclonal immunoglobulins regardless of tumor burden. This has led to the establishment of monoclonal gammopathy with renal significance (MGRS). MGRS was defined by the International Kidney and Monoclonal Gammopathy Research Group in 2012 as a clonal proliferative disorder that produces a nephrotoxic monoclonal immunoglobulin and does not meet previously defined hematological criteria for treatment of a specific malignancy. MGRS encompasses a wide array of pathologies with knowledge surrounding its incidence, prognosis, and management continuously increasing. This review examines the current evidence on the diagnosis, prognosis, pathogenesis, and therapy of plasma cell dyscrasias and related MGRS.
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Affiliation(s)
- Shonali Midha
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA.
| | - Omar Nadeem
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Umut Selamet
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA; Division of Renal Medicine, Brigham and Women's Hospital, Boston, MA
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21
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Bertelsen LD, Børty Nielsen L, Christensen HS, Bøgsted M, Gregersen H, Pedersen RS, Klostergaard A, Schnack BI, Pedersen PT, Abildgaard N, Hermansen E, Vangsted AJ, Severinsen MT. Geographical and ecological analyses of multiple myeloma in Denmark: Identification of potential hotspot areas and impact of urbanisation. Eur J Haematol 2023; 110:289-295. [PMID: 36413106 PMCID: PMC10107668 DOI: 10.1111/ejh.13904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022]
Abstract
BACKGROUND The aetiology of multiple myeloma (MM) is unknown but various environmental exposures are suspected as risk factors. We present the first paper analysing the geographical distribution of MM in Denmark at the municipal level to investigate variations that could be explained by environmental exposures. METHODS Patients diagnosed with MM in Denmark during 2005-2020 were identified from nationwide registries and grouped into the 98 Danish municipalities based on residence. The age- and sex-standardised incidence rate (SIR) of each municipality was compared to the national incidence in a funnel plot with 95% control limits. Differences in SIRs of rural, suburban, and urban areas were evaluated with incidence rate ratios. RESULTS In total, 5243 MM patients were included. Overall, we found a heterogeneous geographical distribution of MM and a potential hotspot in southern Denmark. This hotspot contains three municipalities with SIRs above the 95% control limit assuming considerably higher rate of MM compared to the national incidence rate. A significant higher SIR was found in rural areas compared to urban areas. CONCLUSION The geographical distribution of MM in Denmark indicates that the risk of developing MM depends on place of residence probably due to environmental factors.
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Affiliation(s)
- Lise Dueholm Bertelsen
- Department of Haematology, Clinical Cancer Research Centre, Aalborg University Hospital, Aalborg, Denmark
| | - Lars Børty Nielsen
- Department of Haematology, Clinical Cancer Research Centre, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Heidi Søgaard Christensen
- Department of Clinical Medicine, Center for Molecular Prediction of Inflammatory Bowel Disease (PREDICT), Aalborg University, Aalborg, Denmark
| | - Martin Bøgsted
- Department of Haematology, Clinical Cancer Research Centre, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark.,Department of Clinical Medicine, Center for Clinical Data Science (CLINDA), Aalborg University, and Research, Education and Innovation, Aalborg University Hospital, Aalborg, Denmark
| | - Henrik Gregersen
- Department of Haematology, Clinical Cancer Research Centre, Aalborg University Hospital, Aalborg, Denmark
| | | | - Anja Klostergaard
- Department of Haematology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Niels Abildgaard
- Haematology Research Unit, Department of Haematology, Odense University Hospital, and Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Emil Hermansen
- Department of Haematology, Zealand University Hospital, Roskilde, Denmark
| | | | - Marianne Tang Severinsen
- Department of Haematology, Clinical Cancer Research Centre, Aalborg University Hospital, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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22
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Lewis E, Lee H, Fine N, Miller R, Hahn C, Tay J, Chhibber S, Mahe E, Jimenez-Zepeda VH. Monoclonal Gammopathy of Undetermined Significance in Patients With Transthyretin Amyloidosis (ATTR): Analysis Using the iStopMM Criteria. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:211-217. [PMID: 36621346 DOI: 10.1016/j.clml.2022.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/26/2022]
Abstract
INTRODUCTION To identify the prevalence of monoclonal gammopathy of undetermined significance (MGUS) in patients with transthyretin amyloid (ATTR). We used the iStopMM study revised reference ranges for serum free light-chain (sFLC) corrected for eGFR to identify ATTR patients with light-chain MGUS (LC-MGUS). Characteristics and frequencies of the ATTR cohort with underlying MGUS was compared to a cohort of MGUS patients without ATTR. PATIENTS AND METHODS A retrospective analysis of ATTR and MGUS patients evaluated at our center between January 2014 to December 2021. A total of 149, predominantly male (87.5%) ATTR patients with a median age of 82 were included. This cohort was compared to 228 MGUS patients. RESULTS Of the 149 ATTR patients, 27 (18.1%) had coexisting MGUS. Among ATTR patients with MGUS, 12/27 (44%) had LC-MGUS based on sFLC abnormalities assessed using the iStopMM reference ranges. Of the MGUS only cohort, 44/228 (19.3%) met criteria for LC-MGUS. Utilizing the iStopMM reference ranges, 6 ATTR patients did not meet criteria for abnormal sFLCs, uncovering a 20% false-positive rate. CONCLUSION We noted higher rates of MGUS, particularly LC-MGUS, among ATTR patients when compared to our MGUS only cohort. The high prevalence remained after utilizing the iStopMM sFLC corrected for eGFR reference ranges. Additionally, 6 ATTR patients with renal-dysfunction would have met MGUS criteria if not evaluated using the iStopMM revised measures. These findings emphasize careful interpretation of sFLC abnormalities and encourage providers to keep ATTR on the differential when work-up uncovers sFLC aberrations.
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Affiliation(s)
- Ellen Lewis
- Department of Medical Oncology and Hematology, Tom Baker Cancer Center, Calgary, AB, Canada
| | - Holly Lee
- Department of Medical Oncology and Hematology, Tom Baker Cancer Center, Calgary, AB, Canada
| | - Nowell Fine
- Division of Cardiology, Department of Cardiac Sciences, Libin Cardiovascular Institute, Calgary, AB, Canada
| | - Robert Miller
- Division of Cardiology, Department of Cardiac Sciences, Libin Cardiovascular Institute, Calgary, AB, Canada
| | - Christopher Hahn
- Division of Neurology, Department of Clinical Neurosciences, Charbonneau Cancer Research Institute, Calgary, AB, Canada
| | - Jason Tay
- Department of Medical Oncology and Hematology, Tom Baker Cancer Center, Calgary, AB, Canada; Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Charbonneau Cancer Research Institute, Calgary, AB, Canada
| | - Sameer Chhibber
- Division of Neurology, Department of Clinical Neurosciences, Charbonneau Cancer Research Institute, Calgary, AB, Canada
| | - Etienne Mahe
- Department of Pathology and Lab Medicine, Calgary, AB, Canada
| | - Victor H Jimenez-Zepeda
- Department of Medical Oncology and Hematology, Tom Baker Cancer Center, Calgary, AB, Canada; Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Charbonneau Cancer Research Institute, Calgary, AB, Canada.
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23
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Merlini G, Sarosiek S, Benevolo G, Cao X, Dimopoulos M, Garcia-Sanz R, Gatt ME, Fernandez de Larrea C, San-Miguel J, Treon SP, Minnema MC. Report of Consensus Panel 6 from the 11 th International Workshop on Waldenström's Macroglobulinemia on Management of Waldenström's Macroglobulinemia Related Amyloidosis. Semin Hematol 2023; 60:113-117. [PMID: 37099030 DOI: 10.1053/j.seminhematol.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/31/2023]
Abstract
Consensus Panel 6 (CP6) of the 11th International Workshop on Waldenström's Macroglobulinemia (IWWM-11) was tasked with reviewing the state of the art for diagnosis, prognosis, and therapy of AL amyloidosis associated with Waldenström macroglobulinemia (WM). Since significant advances have been made in the management of AL amyloidosis an update for this rare disease associated with WM was necessary. The key recommendations from IWWM-11 CP6 included: (1) The need to improve the diagnostic process by recognizing red flags and using biomarkers and imaging; (2) The essential tests for appropriate workup; (3) The diagnostic flowchart, including mandatory amyloid typing, that improves the differential diagnosis with transthyretin amyloidosis; (4) Criteria for therapy response assessment; (5) State of the art of the treatment including therapy of wild type transthyretin amyloidosis associated with WM.
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Affiliation(s)
- Giampaolo Merlini
- Amyloidosis Research and Treatment Center, IRCCS Policlinico San Matteo, and University of Pavia, Pavia, Italy.
| | - Shayna Sarosiek
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Giulia Benevolo
- SSD Mieloma Unit e Clinical Trial e S.C. Hematology U, Turin, Turin, Italy
| | - Xinxin Cao
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, Beijing, China
| | - Meletios Dimopoulos
- Department of Clinical Therapeutics, National and Kapodistrian University of Athens, Athens, Greece
| | - Ramon 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, Salamanca, Spain
| | - Moshe E Gatt
- Department of Hematology, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Jesus 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, Navarra, Spain
| | - Steven P Treon
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Monique C Minnema
- Department of Hematology, University Medical Center Utrecht, Utrecht, Utrecht, the Netherlands
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24
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Mohyuddin GR, Chakraborty R, Cliff ERS. The promise and harms of screening for plasma cell dyscrasias. Br J Haematol 2023; 200:704-707. [PMID: 36626939 DOI: 10.1111/bjh.18634] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/14/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023]
Abstract
In this perspective, we highlight both the promise and harms of screening for plasma cell dyscrasias, as well as the implications of the use of mass spectrometry for diagnosing monoclonal gammopathy of undetermined significance in routine practice.
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Affiliation(s)
- Ghulam Rehman Mohyuddin
- Division of Hematology and Hematological Malignancies, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA
| | - Rajshekhar Chakraborty
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, New York, USA
| | - Edward R Scheffer Cliff
- Program on Regulation, Therapeutics and Law, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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25
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Acute venous thromboembolic events in patients with monoclonal gammopathy of undetermined significance: An analysis of the National Inpatient Sample. Thromb Res 2023; 225:28-32. [PMID: 36933476 DOI: 10.1016/j.thromres.2023.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 02/14/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023]
Abstract
BACKGROUND Monoclonal Gammopathy of Undetermined Significance (MGUS) is a premalignant plasma cell disorder which despite being clinically silent carries an increased risk of venous thromboembolism (VTE). We conducted a population-based study to investigate the risk of VTE in these patients. METHODS We utilized the National Inpatient Sample (NIS) for the year 2016 to compare the incidence of acute VTE between patients who carry the diagnosis of MGUS and those who don't. We excluded hospitalizations with age < 18 years and those that had a diagnosed lymphoma, leukemia, solid malignancy, or other plasma cell dyscrasia. We utilized the ICD-10-CM coding system to search the database for codes of VTE, MGUS, and other comorbid conditions. Multivariate logistic regression models were used for comparative analysis adjusting for demographic characteristics and comorbidities. Baseline comorbidities were described as frequencies and proportions for categorical variables and as medians with interquartile ranges for continuous variables. RESULTS A total of 33,115 weighted hospitalizations were included in the MGUS group. These were compared to 27,418,403 weighted hospitalizations without the diagnosis of MGUS. The MGUS group had higher odds of composite venous thromboembolism (adjusted OR 1.33, 95 % CI 1.22-1.44), deep vein thrombosis (adjusted OR 1.46, 95 % CI 1.29-1.65), and pulmonary embolism (adjusted OR 1.22, 95 % CI 1.09-1.37). CONCLUSION Patients with MGUS had increased odds of developing acute venous thromboembolism compared to patients with no history of MGUS.
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Rögnvaldsson S, Long TE, Thorsteinsdottir S, Love TJ, Kristinsson SY. Validity of chronic disease diagnoses in Icelandic healthcare registries. Scand J Public Health 2023; 51:173-178. [PMID: 34903105 DOI: 10.1177/14034948211059974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AIMS To evaluate the validity of recorded chronic disease diagnoses in Icelandic healthcare registries. METHODS Eight different chronic diseases from multiple sub-specialties of medicine were validated with respect to accuracy, but not to timeliness. For each disease, 30 patients with a recorded diagnosis and 30 patients without the same diagnosis were randomly selected from >80,000 participants in the iStopMM trial, which includes 54% of the Icelandic population born before 1976. Each case was validated by chart review by physicians using predefined criteria. RESULTS The overall accuracy of the chronic disease diagnoses was 96% (95% CI 94-97%), ranging from 92 to 98% for individual diseases. After weighting for disease prevalence, the accuracy was estimated to be 98.5%. The overall positive predictive value (PPV) of chronic disease diagnosis was 93% (95% CI 89-96%) and the overall negative predictive value (NPV) was 99% (95% CI 96-100%). There were disease-specific differences in validity, most notably multiple sclerosis, where the PPV was 83%. Other disorders had PPVs between 93 and 97%. The NPV of most disorders was 100%, except for hypertension and heart failure, where it was 97 and 93%, respectively. Those who had the registered chronic disease had objective findings of disease in 96% of cases. CONCLUSIONS
When determining the presence of chronic disease, diagnosis data from the Icelandic healthcare registries has a high PPV, NPV and accuracy. Furthermore, most diagnoses can be confirmed by objective findings such as imaging or blood testing. These findings can inform the interpretation of studies using diagnostic data from the Icelandic healthcare registries.
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Affiliation(s)
| | - Thorir Einarsson Long
- Faculty of Medicine, University of Iceland, Iceland.,Department of Nephrology, Lund University Hospital, Sweden
| | - Sigrun Thorsteinsdottir
- Faculty of Medicine, University of Iceland, Iceland.,Department of Haematology, Rigshospitalet, Denmark
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Iceland.,Department of Science and Research, Landspitali University Hospital, Iceland
| | - Sigurður Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Iceland.,Department of Haematology, Landspítali University Hospital, Iceland
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27
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Kaur J, Valisekka SS, Hameed M, Bandi PS, Varma S, Onwughalu CJ, Ibrahim H, Mongia H. Monoclonal Gammopathy of Undetermined Significance: A Comprehensive Review. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2023; 23:e195-e212. [PMID: 36966041 DOI: 10.1016/j.clml.2023.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023]
Abstract
Monoclonal Gammopathy of Undetermined Significance (MGUS) is an asymptomatic premalignant plasma cell dyscrasia with a predominate rise of the IgG immunoglobulin fraction without end-organ damage, often diagnosed incidentally. Despite its progression into various subsequent forms of hematological malignancies, MGUS remains underdiagnosed. A literature search was conducted using the Medline, Cochrane, Embase, and Google Scholar databases, including articles published until December 2022. Keywords used encompassed "Monoclonal Gammopathy of Undetermined Significance," "Plasma Cell dyscrasia," "Monoclonal gammopathy of renal significance," and "IgM Monoclonal gammopathy of Undetermined Significance," This study aimed to conduct a critical review to update knowledge regarding the pathophysiology, risk factors, clinical features, diagnostic protocols, complications, and current and novel treatments for MGUS. We recommend a multidisciplinary approach to manage MGUS due to the complexity of the illness's etiology, diagnosis, and therapy. This comprehensive review also highlights future prospects, such as developing screening protocols for at-risk populations, prevention of disease progression by early diagnosis through genome-wide association studies, and management using Daratumumab and NSAIDs.
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Affiliation(s)
- Jasneet Kaur
- Internal Medicine, Nassau University Medical Center, East Meadow, New York, USA..
| | | | - Maha Hameed
- Internal Medicine, Florida State University/Sarasota Memorial Hospital, Sarasota, Florida, USA.
| | | | | | | | - Hany Ibrahim
- Ain Shams University, Faculty of Medicine, Cairo, Egypt.
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28
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Smith L, Carmichael J, Cook G, Shinkins B, Neal RD. Development and Internal Validation of a Risk Prediction Model to Identify Myeloma Based on Routine Blood Tests: A Case-Control Study. Cancers (Basel) 2023; 15:975. [PMID: 36765931 PMCID: PMC9913376 DOI: 10.3390/cancers15030975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/25/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Myeloma is one of the hardest cancers to diagnose in primary care due to its rarity and non-specific symptoms. A rate-limiting step in diagnosing myeloma is the clinician considering myeloma and initiating appropriate investigations. We developed and internally validated a risk prediction model to identify those with a high risk of having undiagnosed myeloma based on results from routine blood tests taken for other reasons. A case-control study, based on 367 myeloma cases and 1488 age- and sex-matched controls, was used to develop a risk prediction model including results from 15 blood tests. The model had excellent discrimination (C-statistic 0.85 (95%CI 0.83, 0.89)) and good calibration (calibration slope 0.87 (95%CI 0.75, 0.90)). At a prevalence of 15 per 100,000 population and a probability threshold of 0.4, approximately 600 patients would need additional reflex testing to detect one case. We showed that it is possible to combine signals and abnormalities from several routine blood test parameters to identify individuals at high-risk of having undiagnosed myeloma who may benefit from additional reflex testing. Further work is needed to explore the full potential of such a strategy, including whether it is clinically useful and cost-effective and how to make it ethically acceptable.
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Affiliation(s)
- Lesley Smith
- Leeds Diagnosis and Screening Unit, Leeds Institute of Health Sciences, University of Leeds, Leeds LS2 9JT, UK
| | - Jonathan Carmichael
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trial Research, University of Leeds, Leeds LS2 9JT, UK
- NIHR (Leeds) Medtech & In Vitro Diagnostics Cooperative, Leeds LS2 9JT, UK
| | - Gordon Cook
- Cancer Research UK Clinical Trials Unit, Leeds Institute of Clinical Trial Research, University of Leeds, Leeds LS2 9JT, UK
- NIHR (Leeds) Medtech & In Vitro Diagnostics Cooperative, Leeds LS2 9JT, UK
| | - Bethany Shinkins
- Leeds Diagnosis and Screening Unit, Leeds Institute of Health Sciences, University of Leeds, Leeds LS2 9JT, UK
- NIHR (Leeds) Medtech & In Vitro Diagnostics Cooperative, Leeds LS2 9JT, UK
| | - Richard D. Neal
- Department of Health and Community Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX2 5DW, UK
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29
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Thorsteinsdóttir S, Gíslason GK, Aspelund T, Rögnvaldsson S, Óskarsson JÞ, Sigurðardóttir GÁ, Þórðardóttir ÁR, Viðarsson B, Önundarson PT, Agnarsson BA, Sigurðardóttir M, Þorsteinsdóttir I, Ólafsson Í, Eyþórsson E, Jónsson Á, Berlanga O, Hultcrantz M, Durie BGM, Löve TJ, Harding S, Landgren O, Kristinsson SY. Prevalence of smoldering multiple myeloma based on nationwide screening. Nat Med 2023; 29:467-472. [PMID: 36747117 PMCID: PMC11099842 DOI: 10.1038/s41591-022-02183-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 12/13/2022] [Indexed: 02/08/2023]
Abstract
Smoldering multiple myeloma (SMM) is an asymptomatic precursor to multiple myeloma. Here we define the epidemiological characteristics of SMM in the general population in Iceland. The iStopMM study (ClinicalTrials.gov ID: NCT03327597 ) is a nationwide screening study for multiple myeloma precursors where all residents in Iceland 40 years or older were invited to participate. SMM was defined as 10-60% bone marrow plasma cells and/or monoclonal (M) protein concentration ≥3 g dl-1, in the absence of myeloma-defining events. Of the 80,759 who gave informed consent to participate, 75,422 (93%) were screened. The prevalence of SMM in the total population was 0.53% (95% confidence interval (CI) = 0.49-0.57%) in individuals 40 years or older. In men and women, the prevalence of SMM was 0.67% (95% CI = 0.62-0.73%) and 0.39% (95% CI = 0.35-0.43%), respectively; it increased with age in both sexes. For the 193 individuals with SMM, median age was 70 years (range 44-92 years) and 60% were males. The mean M protein concentration of individuals with SMM was 0.62 g dl-1 (range 0.01-3.5 g dl-1) and 73% had 11-20% bone marrow plasma cell infiltration. The high prevalence of SMM has implications for future treatment policies in multiple myeloma as the evidence supporting treatment initiation at the SMM stage is emerging.
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Affiliation(s)
- Sigrún Thorsteinsdóttir
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
| | | | - Thor Aspelund
- Public Health Sciences, University of Iceland, Reykjavík, Iceland
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Brian G M Durie
- Cedars-Sinai Samual Oschin Cancer Center, Los Angeles, CA, USA
| | | | | | - Ola Landgren
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Sigurður Y Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavík, Iceland.
- Landspítali University Hospital, Reykjavík, Iceland.
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31
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Monoclonal Gammopathies and the Bone Marrow Microenvironment: From Bench to Bedside and Then Back Again. Hematol Rep 2023; 15:23-49. [PMID: 36648882 PMCID: PMC9844382 DOI: 10.3390/hematolrep15010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 09/11/2022] [Accepted: 01/03/2023] [Indexed: 01/12/2023] Open
Abstract
Multiple myeloma (MM) is an incurable hematologic malignancy characterized by a multistep evolutionary pathway, with an initial phase called monoclonal gammopathy of undetermined significance (MGUS), potentially evolving into the symptomatic disease, often preceded by an intermediate phase called "smoldering" MM (sMM). From a biological point of view, genomic alterations (translocations/deletions/mutations) are already present at the MGUS phase, thus rendering their role in disease evolution questionable. On the other hand, we currently know that changes in the bone marrow microenvironment (TME) could play a key role in MM evolution through a progressive shift towards a pro-inflammatory and immunosuppressive shape, which may drive cancer progression as well as clonal plasma cells migration, proliferation, survival, and drug resistance. Along this line, the major advancement in MM patients' survival has been achieved by the introduction of microenvironment-oriented drugs (including immunomodulatory drugs and monoclonal antibodies). In this review, we summarized the role of the different components of the TME in MM evolution from MGUS as well as potential novel therapeutic targets/opportunities.
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32
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Implications and prognostic impact of mass spectrometry in patients with newly-diagnosed multiple myeloma. Blood Cancer J 2023; 13:1. [PMID: 36599831 DOI: 10.1038/s41408-022-00772-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 12/08/2022] [Accepted: 12/12/2022] [Indexed: 01/06/2023] Open
Abstract
Mass spectrometry (MS) is a promising tool for monitoring monoclonal protein in plasma cell dyscrasias. We included 480 transplant-eligible newly-diagnosed multiple myeloma (MM) patients from the GMMG-MM5 trial (EudraCT No. 2010-019173-16) and performed a retrospective MS analysis at baseline (480 patients) and at the pre-defined, consecutive time points after induction (444 patients), prior to maintenance (305 patients) and after one year of maintenance (227 patients). We found that MS negativity was significantly associated with improved progression-free survival (PFS) even in patients with complete response (CR) at all investigated follow-up time points. The prognostic impact was independent of established risk factors, such as the revised International Staging System. Combining MS and baseline cytogenetics improved the prediction of outcome: MS-positive patients with high-risk cytogenetics had a dismal PFS of 1.9 years (95% confidence interval [CI]: 1.6-2.3 years) from the start of maintenance. Testing the value of sequential MS prior to and after one year of maintenance, patients converting from MS positivity to negativity had an excellent PFS (median not reached) while patients converting from MS negativity to positivity progressed early (median 0.6 years, 95% CI: 0.3-not reached). Among patients with sustained MS positivity, the baseline high-risk cytogenetic status had a significant impact and defined a group with poor PFS. Combining minimal residual disease (MRD) in the bone marrow and MS allowed the identification of double negative patients with a favorable PFS (median 3.33 years, 95% CI: 3.08-not reached) and no overall survival events. Our study provides strong evidence that MS is superior to conventional response monitoring, highlighting the potential of MS to become a new standard. Our data indicate that MS should be performed sequentially and combined with baseline disease features and MRD to improve its clinical value.Clinical Trials Register: EudraCT No. 2010-019173-16.
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33
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Thorsteinsdottir S. The consultant's guide to smoldering multiple myeloma. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2022; 2022:551-559. [PMID: 36485144 PMCID: PMC9821526 DOI: 10.1182/hematology.2022000355] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Smoldering multiple myeloma (SMM) is an asymptomatic precursor condition to multiple myeloma (MM). The prevalence of SMM is 0.5% in persons over 40 years old; it is higher in men than women and increases with age. When SMM is diagnosed, a thorough diagnostic workup is necessary to exclude myeloma-defining events and stratify patients according to risk of progression to MM. While close monitoring for progression remains the best management for most patients with SMM, in this article, we discuss if treatment initiation before myeloma-defining events occur might be relevant in selected high-risk cases. Two randomized clinical trials have shown a clinical benefit of initiating treatment at the SMM stage, whereof 1 showed an overall survival benefit for those receiving treatment. We discuss various risk stratification models in SMM, important treatment trials, and ongoing trials. Finally, we present how to approach the clinical management of patients with SMM.
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Affiliation(s)
- Sigrun Thorsteinsdottir
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
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34
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Abstract
Monoclonal gammopathy of undetermined significance (MGUS) is of considerable clinical importance to primary care physicians given its high prevalence in the general population. MGUS has a variable but lifelong risk for progression to hematologic cancer, such as multiple myeloma, Waldenström macroglobulinemia, or light-chain amyloidosis. In addition, MGUS has been associated with several nonmalignant yet symptomatic disorders that require therapy directed toward eliminating the monoclonal gammopathy. Thus, it is important not only to understand the essentials of diagnosing and monitoring patients with MGUS but also to recognize when to refer patients with MGUS to a specialist.
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Affiliation(s)
- Wilson I Gonsalves
- Division of Hematology, Mayo Clinic, Rochester, Minnesota (W.I.G., S.V.R.)
| | - S Vincent Rajkumar
- Division of Hematology, Mayo Clinic, Rochester, Minnesota (W.I.G., S.V.R.)
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35
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Abeykoon JP, Tawfiq RK, Kumar S, Ansell SM. Monoclonal gammopathy of undetermined significance: evaluation, risk assessment, management, and beyond. Fac Rev 2022; 11:34. [PMID: 36532706 PMCID: PMC9720897 DOI: 10.12703/r/11-34] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023] Open
Abstract
Monoclonal gammopathy of undetermined significance (MGUS) is a premalignant state for a spectrum of lymphoplasmacytic malignancies. The risk of progression of MGUS to a symptomatic therapy requiring plasma cell dyscrasia is about 1% per year. Studies carried out over the previous 10 years have improved risk stratification of MGUS based on serologic and genomic evaluations, which has led to better management of patients. In this review, we address the epidemiology, diagnosis, and pathogenesis of MGUS and discuss risk-adapted best practice approaches to monitor patients.
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Affiliation(s)
- Jithma P Abeykoon
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Reema K Tawfiq
- Department of Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Shaji Kumar
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Stephen M Ansell
- Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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36
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Monoclonal Gammopathies of Clinical Significance: A Critical Appraisal. Cancers (Basel) 2022; 14:cancers14215247. [PMID: 36358666 PMCID: PMC9659226 DOI: 10.3390/cancers14215247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/15/2022] [Accepted: 10/24/2022] [Indexed: 11/26/2022] Open
Abstract
Simple Summary Monoclonal gammopathy of clinical significance (MGCS) refers to a recently coined term describing a complex and heterogeneous group of nonmalignant monoclonal gammopathies. These patients are characterized by the presence of a commonly small clone and the occurrence of symptoms that may be associated with the clone or with the monoclonal protein through diverse mechanisms. This is an evolving, challenging, and rapidly changing field. Patients are classified according to the key organ or system involved, with kidneys, skin, nerves, and eyes being the most frequently affected. However, multiorgan involvement may be the most relevant clinical feature at the presentation or during the course. This review delves into the definition, history, differential diagnosis, classification, prognosis, and treatment of this group of entities by analyzing the evidence accumulated to date from a critical perspective. Abstract Monoclonal gammopathies of clinical significance (MGCSs) represent a group of diseases featuring the association of a nonmalignant B cells or plasma cells clone, the production of an M-protein, and singularly, the existence of organ damage. They present a current framework that is difficult to approach from a practical clinical perspective. Several points should be addressed in order to move further toward a better understanding. Overall, these entities are only partially included in the international classifications of diseases. Its definition and classification remain ambiguous. Remarkably, its real incidence is unknown, provided that a diagnostic biopsy is mandatory in most cases. In fact, amyloidosis AL is the final diagnosis in a large percentage of patients with renal significance. On the other hand, many of these young entities are syndromes that are based on a dynamic set of diagnostic criteria, challenging a timely diagnosis. Moreover, a specific risk score for progression is lacking. Despite the key role of the clinical laboratory in the diagnosis and prognosis of these patients, information about laboratory biomarkers is limited. Besides, the evidence accumulated for many of these entities is scarce. Hence, national and international registries are stimulated. In particular, IgM MGCS deserves special attention. Until now, therapy is far from being standardized, and it should be planned on a risk and patient-adapted basis. Finally, a comprehensive and coordinated multidisciplinary approach is needed, and specific clinical trials are encouraged.
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37
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Diagnosing myeloma in general practice: how might earlier diagnosis be achieved? Br J Gen Pract 2022. [PMCID: PMC9512431 DOI: 10.3399/bjgp22x720737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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38
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Defining new reference intervals for serum free light chains in individuals with chronic kidney disease: Results of the iStopMM study. Blood Cancer J 2022; 12:133. [PMID: 36100605 PMCID: PMC9470548 DOI: 10.1038/s41408-022-00732-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/08/2022] Open
Abstract
Serum free light chain (FLC) concentration is greatly affected by kidney function. Using a large prospective population-based cohort, we aimed to establish a reference interval for FLCs in persons with chronic kidney disease (CKD). A total of 75422 participants of the iStopMM study were screened with serum FLC, serum protein electrophoresis and immunofixation. Estimated glomerular filtration rate (eGFR) was calculated from serum creatinine. Central 99% reference intervals were determined, and 95% confidence intervals calculated. Included were 6461 (12%) participants with measured FLCs, eGFR < 60 mL/min/1.73 m2, not receiving renal replacement therapy, and without evidence of monoclonality. Using current reference intervals, 60% and 21% had kappa and lambda FLC values outside the normal range. The FLC ratio was outside standard reference interval (0.26-1.65) in 9% of participants and outside current kidney reference interval (0.37-3.10) in 0.7%. New reference intervals for FLC and FLC ratio were established. New reference intervals for the FLC ratio were 0.46-2.62, 0.48-3.38, and 0.54-3.30 for eGFR 45-59, 30-44, and < 30 mL/min/1.73 m2 groups, respectively. The crude prevalence of LC-MGUS in CKD patients was 0.5%. We conclude that current reference intervals for FLC and FLC ratio are inaccurate in CKD patients and propose new eGFR based reference intervals to be implemented.
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39
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Kapoor P, Rajkumar SV. Cardiovascular Associations With Monoclonal Gammopathy of Undetermined Significance. JACC CardioOncol 2022; 4:323-325. [PMID: 36213348 PMCID: PMC9537066 DOI: 10.1016/j.jaccao.2022.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Affiliation(s)
| | - S. Vincent Rajkumar
- Address for correspondence: Dr S. Vincent Rajkumar, Division of Hematology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, USA. @VincentRK
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40
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Rajkumar SV. The Path Forward in Multiple Myeloma: 2021 Jan Waldenstrom Award Lecture. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:666-669. [PMID: 35614010 DOI: 10.1016/j.clml.2022.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
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41
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Zeig-Owens R, Goldfarb DG, Luft BJ, Yang X, Murata K, Ramanathan L, Thoren K, Doddi S, Shah UA, Mueller AK, Hall CB, Giricz O, Verma A, Prezant DJ, Landgren O. Myeloma precursor disease (MGUS) among rescue and recovery workers exposed to the World Trade Center disaster. Blood Cancer J 2022; 12:120. [PMID: 35995768 PMCID: PMC9395354 DOI: 10.1038/s41408-022-00709-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/13/2022] [Accepted: 07/15/2022] [Indexed: 11/09/2022] Open
Abstract
An elevated risk of myeloma precursor disease, monoclonal gammopathy of undetermined significance (MGUS), was identified among Fire Department of the City of New York (FDNY) World Trade Center (WTC)-exposed firefighters. Further investigation was needed to determine if these findings were reproducible in a more heterogeneous WTC-exposed rescue/recovery workers cohort, the Stony Brook University-General Responder Cohort GRC (SBU-GRC). MGUS risk was compared between the cohorts and to published general population estimates from Olmsted County, MN, USA. In this observational seroprevalence study, odds ratios (OR) and age-standardized risk ratios (RR) of MGUS (M-spike and light-chain-MGUS combined), M-spike, and light-chain-MGUS were estimated using logistic regression. Age-standardized prevalences were calculated for white males aged 50–79; RRs were estimated by comparing risk in the WTC-exposed cohort with the Olmsted County screened cohort. SBU-GRC had elevated odds of MGUS compared with FDNY (OR = 1.38; 95%CI = 1.00–1.89). The age-standardized prevalence of MGUS was 9.0/100 persons (95%CI = 7.5–10.6), over two-fold higher than the general population (RR = 2.08; 95%CI = 1.72–2.51); the age-standardized prevalence of light-chain-MGUS was 3.5-fold higher (RR = 3.54; 95%CI = 2.52–4.97). This study adds to mounting evidence supporting an association between WTC/environmental exposures and MGUS among rescue/recovery workers. Access to MGUS screenings for the entire WTC-exposed cohort could allow for treatment interventions that improve survival.
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Affiliation(s)
- Rachel Zeig-Owens
- Department of Medicine, Montefiore Medical Center, Bronx, NY, USA.,Bureau of Health Services, Fire Department of the City of New York, Brooklyn, NY, USA.,Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - David G Goldfarb
- Department of Medicine, Montefiore Medical Center, Bronx, NY, USA.,Bureau of Health Services, Fire Department of the City of New York, Brooklyn, NY, USA
| | - Benjamin J Luft
- Department of Medicine, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Xiaohua Yang
- Department of Medicine, Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, USA
| | - Kazunori Murata
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lakshmi Ramanathan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Katie Thoren
- Myeloma Program, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Sital Doddi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Urvi A Shah
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York City, NY, USA
| | - Alexandra K Mueller
- Department of Medicine, Montefiore Medical Center, Bronx, NY, USA.,Bureau of Health Services, Fire Department of the City of New York, Brooklyn, NY, USA
| | - Charles B Hall
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Orsi Giricz
- The Leukemia & Lymphoma Society, Rye Brook, NY, USA
| | - Amit Verma
- Division of Hemato-Oncology, Department of Oncology, Albert Einstein College of Medicine & Montefiore Medical Center, Bronx, NY, USA
| | - David J Prezant
- Bureau of Health Services, Fire Department of the City of New York, Brooklyn, NY, USA.,Department of Medicine, Division of Pulmonary Medicine, Montefiore Medical Center and Albert Einstein College of Medicine, New York, NY, USA
| | - Ola Landgren
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA.
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42
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Love TJ, Wessman I, Gislason GK, Rognvaldsson S, Thorsteinsdottir S, Sigurdardottir GA, Thordardottir AR, Eythorsson E, Asgeirsdottir TL, Aspelund T, Bjornsson AS, Kristinsson SY. The first wave of COVID-19 and concurrent social restrictions were not associated with a negative impact on mental health and psychiatric well-being. J Intern Med 2022; 291:837-848. [PMID: 35112416 DOI: 10.1111/joim.13461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) pandemic and efforts to contain it have substantially affected the daily lives of most of the world's population. OBJECTIVE We describe the impact of the first COVID-19 wave and associated social restrictions on the mental health of a large adult population. METHODS We performed a cohort study nested in a prospective randomized clinical trial, comparing responses during the first COVID-19 wave to previous responses. We calculated the odds ratio (OR) of the population moving up one severity category on validated instruments used to measure stress (PSS-10), anxiety (GAD-7), depression (PHQ-9), and Satisfaction With Life Scale (SWLS). Responses were linked to inpatient and outpatient ICD-10 codes from registries. Models were adjusted for age, sex, comorbidities, and pre-existing diagnoses of mental illness. RESULTS Of 63,848 invited participants, 42,253 (66%) responded. The median age was 60 (inter-quartile range 53-68) and 19,032 (45%) were male. Responses during the first wave of COVID-19 did not suggest increased stress (OR 0.97; 95% confidence interval [CI], 0.93-1.01; p = 0.28) or anxiety (OR 1.01; 95% CI, 0.96 to 1.05; p = 0.61), but were associated with decreased depression (OR 0.89; 95% CI, 0.85-0.93, p < 0.0001) and increased satisfaction with life (OR 1.12; 95% CI, 1.08-1.16, p < 0.0001). A secondary analysis of repeated measures data showed similar results. CONCLUSIONS Social restrictions were sufficient to contain the pandemic but did not negatively impact validated measures of mental illness or psychiatric well-being. However, responses to individual questions showed signs of fear and stress. This may represent a normal, rather than pathological, population response to a stressful situation.
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Affiliation(s)
- Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | - Inga Wessman
- Faculty of Psychology, University of Iceland, Reykjavik, Iceland
| | | | - Saemundur Rognvaldsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | | | | | | | - Elias Eythorsson
- Department of Medicine, Landspitali University Hospital, Reykjavik, Iceland
| | | | - Thor Aspelund
- Centre for Public Health Sciences, University of Iceland, Reykjavik, Iceland
| | | | - Sigurdur Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Medicine, Landspitali University Hospital, Reykjavik, Iceland
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Heaney JLJ, Faustini S, Evans L, Rapson A, Collman E, Emery A, Campbell JP, Moore S, Goodall M, Afzal Z, Chapple IL, Pratt G, Drayson MT. Investigating the utility of saliva immunoglobulins for the detection of myeloma and using myeloma proteins to clarify partition between oral and systemic immunity. Eur J Haematol Suppl 2022; 108:493-502. [PMID: 35184331 PMCID: PMC9314979 DOI: 10.1111/ejh.13758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 01/26/2023]
Abstract
OBJECTIVES Myeloma is characterised by the presence of monoclonal immunoglobulin (M-protein) and the free light chain (FLC) in blood. We investigated whether these M-proteins and FLC are detectable in myeloma patients' saliva to evaluate its utility for non-invasive screening and monitoring of haematological malignancies. METHODS A total of 57 patients with monoclonal gammopathy and 26 age-matched healthy participants provided paired serum and saliva samples for immunoglobulin characterisation and quantification. RESULTS Myeloma patients had IgG or IgA M-protein levels ranging up to five times and FLC levels up to a thousand times normal levels of polyclonal immunoglobulins. Despite these highly elevated levels, only two IgG and no IgA M-proteins or FLC could be detected in paired saliva samples. Most patients had reduced levels of serum polyclonal immunoglobulins, but all had normal levels of salivary IgA. CONCLUSIONS Immunoglobulin transfer from blood is not determined by levels in the systemic circulation and more likely dictated by periodontal inflammation and the integrity of the oral epithelium. Immunoglobulins secreted by bone marrow plasma cells do not substantially enter saliva, which represents a poor medium for myeloma diagnosis. These findings, along with normal salivary IgA levels despite systemic immunoparesis, support a strong partitioning of oral from systemic humoral immunity.
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Affiliation(s)
- Jennifer L J Heaney
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Sian Faustini
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Lili Evans
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Alec Rapson
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Emily Collman
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | | | | | - Sally Moore
- Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - Margaret Goodall
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Zaheer Afzal
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - Iain L Chapple
- Periodontal Research Group, School of Dentistry, Institute of Clinical Sciences, University of Birmingham, and Birmingham Community Health Trust, Birmingham, UK
| | - Guy Pratt
- University Hospitals Birmingham NHS Trust, Birmingham, UK
| | - Mark T Drayson
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
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44
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Steinhardt M, Kortüm M, Einsele H, Rasche L. [Monoclonal gammopathy of (un)known significance]. Dtsch Med Wochenschr 2022; 147:675-682. [PMID: 35636418 DOI: 10.1055/a-1664-7353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Monoclonal gammopathies are a frequently diagnosed entity. However, the diagnosis is not always clinically relevant. The diagnosis of a monoclonal gammopathy requires serum electrophoresis, immunofixation and free light chain measurement. Sometimes, monoclonal gammopathies occur in the course of transient or autoimmune inflammation. Further diagnostics should only be performed after risk assessment according to Mayo criteria. In non-low risk patients, a symptomatic myeloma has to be ruled out via SLiM-CRAB criteria. The diagnostic work-up should include whole-body MRI and a bone marrow puncture as well as a 24 h urine sample. If it does not imply myeloma, the diagnosis of MGUS is confirmed and a follow-up after 6 months is recommended. After that, low-risk patients only need SLiM-CRAB screening at clinical signs of progression. All other patients should receive serologic follow-ups once a year. Importantly, MGUS patients show higher morbidity. Amongst a higher prevalence of osteoporosis and immunodeficiency, a wide array of MGUS-associated diseases such as AL amyloidosis, deposition diseases and Fc binding-dependent effects can occur. This article gives an overview over the work-up, observation and caveats of monoclonal gammopathy of (un)known significance.
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Affiliation(s)
| | - Martin Kortüm
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg
| | - Hermann Einsele
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg
| | - Leo Rasche
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg
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45
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Sigurbergsdóttir AÝ, Love TJ, Kristinsson SY. Autoimmunity, Infections, and the Risk of Monoclonal Gammopathy of Undetermined Significance. Front Immunol 2022; 13:876271. [PMID: 35572590 PMCID: PMC9096784 DOI: 10.3389/fimmu.2022.876271] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/04/2022] [Indexed: 11/13/2022] Open
Abstract
Various epidemiological studies, including case reports and -series in addition to larger, population-based studies, have reported an increased prevalence of monoclonal gammopathy of undetermined significance (MGUS) and multiple myeloma in individuals with a prior history of immune-related conditions. This is believed to support the role of chronic antigen stimulation in the pathogenesis of these conditions. In this short review, we summarize some of the largest population-based studies researching autoimmune diseases, infections, and the subsequent risk of MGUS, and discuss our understanding on its etiology and pathogenesis. Furthermore, we highlight important methodological limitations of previous studies in the field, but almost all studies on MGUS have been based on clinical, possibly biased, cohorts. Finally, we discuss future directions in researching the associations of MGUS and other disorders, including immune-related conditions, where screening studies play an important role.
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Affiliation(s)
| | - Thorvardur Jon Love
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Science and Research, Landspitali University Hospital, Reykjavik, Iceland
| | - Sigurður Yngvi Kristinsson
- Faculty of Medicine, University of Iceland, Reykjavik, Iceland.,Department of Haematology, Landspitali University Hospital, Reykjavik, Iceland
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46
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Agarwal G, Milan C, Mohsin Z, Mahoney S, White G, Stevens P, Connacher S, Osborne P, Eckert R, Sadler R, Ramasamy K, Javaid MK. Multiple myeloma screening within a fracture liaison service (FLS). Osteoporos Int 2022; 33:937-941. [PMID: 34825920 DOI: 10.1007/s00198-021-06233-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/03/2021] [Indexed: 11/29/2022]
Abstract
UNLABELLED Multiple myeloma (MM) remains incurable. Although early diagnosis improves outcomes, it has been unclear which populations to target for screening with serum electrophoresis, serum free light chains and urine electrophoresis. Here, we assessed the value of MM screening in a Fracture Liaison Service, finding that 1 per 195 fragility fractures has undiagnosed MM, which can be expedited to Haematology Services. PURPOSE A key role of the Fracture Liaison Service (FLS) is screening for secondary causes of osteoporosis. In 2019, the Royal Osteoporosis Society recommended that all patients attending FLS who are recommended anti-osteoporosis therapy have universal screening for myeloma based on serum electrophoresis, serum free light chains and urine electrophoresis. Here, we examined the impact of universal myeloma screening within an FLS. METHODS We sampled all patients seen by the Oxfordshire FLS between January and April 2018. The completion rates and outcomes of screening were checked using the hospital and FLS databases. RESULTS Of 950 patients identified by the FLS, 628 were eligible for MM screening; 473 (75%) of these were female, and the average age was 78.4 years. Overall, 584 had some form of myeloma screening, of which 577 (92%) had serum electrophoresis, 525 (84%) had serum free light chains and 407 (65%) had urine electrophoresis measured. A total of 327 (59%) patients had complete screening. Three patients (0.5%) had newly diagnosed myeloma and were urgently referred to Haematology Services. Furthermore, 46 (8%) patients had a detectable serum paraprotein with a likely diagnosis of monoclonal gammopathy of uncertain significance (MGUS) and referred for community annual surveillance according to local guidelines. CONCLUSION Addition of universal myeloma screening to laboratory testing identified myeloma in 1 per 195 patients, and its precursor state MGUS in 1 per 13 patients, which may have otherwise been missed. Further analysis with long-term follow-up is needed to clearly define the value of diagnosing MGUS within the FLS setting and establish the benefits vs. costs and methods to improve screening completion rates.
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Affiliation(s)
- G Agarwal
- Balliol College, University of Oxford, Oxford, UK
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - C Milan
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - Z Mohsin
- NDORMS, University of Oxford, Oxford, UK
| | - S Mahoney
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - G White
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - P Stevens
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - S Connacher
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - P Osborne
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - R Eckert
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
| | - R Sadler
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - K Ramasamy
- Blood Theme, Oxford NIHR BRC, Oxford, UK
| | - M K Javaid
- Oxfordshire Fracture Prevention Service, Oxford University Hospitals Foundation NHS Trust, Oxford, UK
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47
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Prevalence of Heavy Chain MGUS by Race and Family History Risk Groups Using a High Sensitivity Screening Method. Blood Adv 2022; 6:3746-3750. [PMID: 35316833 PMCID: PMC9631569 DOI: 10.1182/bloodadvances.2021006201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/02/2022] [Indexed: 11/20/2022] Open
Abstract
The mass spectrometry assay found over threefold numbers of individuals with MGUS than gel-based assays across 3 risk groups. Relative differences in MGUS using the sensitive mass spectrometry assay were similar by race, family history, and age as prior MGUS studies.
Mass-spectrometry (MS) assays detect lower levels of monoclonal proteins and result in earlier detection of monoclonal gammopathy of undetermined significance (MGUS). We examined heavy chain MGUS prevalence using matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) MS among 3 risk groups, ages 50 or older: 327 African Americans (AA) and 1223 European Americans (EA) from a clinical biobank and 1093 unaffected first-degree relatives (FDR) of patients with hematologic disorders. Age- and sex-adjusted prevalence rates were directly standardized to 2010 United States population. Prevalence ratios were estimated for comparisons of AA and FDR to the EA group using the Poisson distribution. Results were also compared with population-based prevalence using conventional gel-based methods. Risk groups had similar sex and age distributions. MALDI-TOF MGUS prevalence was higher in the AA (16.5% [95% confidence interval (CI), 12.2%, 20.8%]) and FDR (18.3% [95% CI, 16.6%, 21.6%]) than in EA (10.8% [95% CI, 8.8%, 12.7%]), translating to prevalence ratios of 1.73 (95% CI, 1.31, 2.29) and 1.90 (95% CI, 1.55, 2.34), respectively. MALDI-TOF EA prevalence was over threefold higher than conventional estimates but showed similar age trends. Thus, the MALDI-TOF assay found greater numbers with MGUS but similar relative differences by race, family history, and age as prior studies.
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48
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Tahiru W, Izarra Santamaria A, Hultdin J, Wu WYY, Späth F. Progression patterns in monoclonal gammopathy of undetermined significance and multiple myeloma outcome: a cohort study in 42 patients. Exp Hematol Oncol 2022; 11:8. [PMID: 35197127 PMCID: PMC8867673 DOI: 10.1186/s40164-022-00259-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/21/2022] [Indexed: 12/12/2022] Open
Abstract
Follow-up of low-risk monoclonal gammopathy of undetermined significance (MGUS) is debated as multiple myeloma (MM) progression risk is low. Worse MM outcome was reported for patients followed for low-risk MGUS, possibly due to less optimal follow-up. However, it is unknown whether progressing low-risk MGUS is associated with aggressive tumor behavior. Understanding these patterns is crucial for MGUS management. Here, we investigated whether progression from low-risk MGUS is associated with worse MM outcome in patients who had no MGUS follow-up before myeloma diagnosis. We retrospectively determined the MGUS status in repeated pre-diagnostic blood samples prospectively collected from 42 myeloma patients in median 11.6 years (first sample) and 3.3 years (repeated sample) before myeloma diagnosis. At first pre-diagnostic blood draw, 12 had low-risk (defined by an immunoglobulin [Ig] G monoclonal [M] spike < 15 g/L and a normal free light-chain ratio) and 30 had MGUS of other risk. MM bone disease was more common in patients with low-risk MGUS at first blood draw (67% vs. 30%, P = 0.041). Median survival since myeloma diagnosis was worse in low-risk than other MGUS at first blood draw (2.3 vs. 7.5 years, P = 0.004). Modest progression was observed between first and repeated blood draw for the majority of low-risk MGUS as 67% remained as low- or low-intermediate-risk MGUS at repeated blood draw. Our study, albeit limited by its small size, indicates that progression from low-risk MGUS is associated with worse MM outcome regardless of MGUS follow-up. Although further investigation is needed, progressing low-risk MGUS could belong to a group of aggressive tumors with progression that is difficult to predict.
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Affiliation(s)
- Widad Tahiru
- Department of Radiation Sciences, Oncology, Umeå University, 90187, Umeå, Sweden.,Department of Radiation Sciences, Oncology and Cancer Center, Hematology, Umeå University, 90187, Umeå, Sweden
| | - Antonio Izarra Santamaria
- Department of Radiation Sciences, Oncology, Umeå University, 90187, Umeå, Sweden.,Department of Radiation Sciences, Oncology and Cancer Center, Hematology, Umeå University, 90187, Umeå, Sweden
| | - Johan Hultdin
- Department of Medical Biosciences, Clinical Chemistry, Umeå University, Umeå, Sweden
| | - Wendy Yi-Ying Wu
- Department of Radiation Sciences, Oncology, Umeå University, 90187, Umeå, Sweden
| | - Florentin Späth
- Department of Radiation Sciences, Oncology, Umeå University, 90187, Umeå, Sweden. .,Department of Radiation Sciences, Oncology and Cancer Center, Hematology, Umeå University, 90187, Umeå, Sweden.
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Oben B, Cosemans C, Geerdens E, Linsen L, Vanhees K, Maes B, Theunissen K, Cruys B, Lionetti M, Arijs I, Bolli N, Froyen G, Rummens JL. The Dynamics of Nucleotide Variants in the Progression from Low-Intermediate Myeloma Precursor Conditions to Multiple Myeloma: Studying Serial Samples with a Targeted Sequencing Approach. Cancers (Basel) 2022; 14:cancers14041035. [PMID: 35205782 PMCID: PMC8870380 DOI: 10.3390/cancers14041035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/28/2022] [Accepted: 02/16/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Multiple myeloma (MM), characterized by the expansion of plasma cells in the bone marrow, is the second most common hematological malignancy. This incurable cancer is consistently preceded by non-malignant asymptomatic precursor conditions known as monoclonal gammopathy of undetermined significance (MGUS) and/or smoldering multiple myeloma (SMM). These pre-stages are relatively frequent, but only a select percentage of them will progress to MM. However, it is still not possible to individually predict when and which patients will develop MM. Therefore, this study aimed to investigate the mutational profile in the progression in serial bone marrow samples with a custom targeted sequencing panel, designed to detect variants in myeloma-related genes. Remarkably, almost all variants identified in the MM samples were also already present in the pre-stages, sometimes even many years before the progression. These results provide new important insights into the molecular mechanisms of the precursor conditions and progression to MM. Abstract Multiple myeloma (MM), or Kahler’s disease, is an incurable plasma cell (PC) cancer in the bone marrow (BM). This malignancy is preceded by one or more asymptomatic precursor conditions, monoclonal gammopathy of undetermined significance (MGUS) and/or smoldering multiple myeloma (SMM). The molecular mechanisms and exact cause of this progression are still not completely understood. In this study, the mutational profile underlying the progression from low–intermediate risk myeloma precursor conditions to MM was studied in serial BM smears. A custom capture-based sequencing platform was developed, including 81 myeloma-related genes. The clonal evolution of single nucleotide variants and short insertions and deletions was studied in serial BM smears from 21 progressed precursor patients with a median time of progression of six years. From the 21 patients, four patients had no variation in one of the 81 studied genes. Interestingly, in 16 of the 17 other patients, at least one variant present in MM was also detected in its precursor BM, even years before progression. Here, the variants were present in the pre-stage at a median of 62 months before progression to MM. Studying these paired BM samples contributes to the knowledge of the evolutionary genetic landscape and provides additional insight into the mutational behavior of mutant clones over time throughout progression.
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Affiliation(s)
- Bénedith Oben
- Laboratory Experimental Hematology, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (C.C.); (L.L.); (J.-L.R.)
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- Correspondence:
| | - Charlotte Cosemans
- Laboratory Experimental Hematology, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (C.C.); (L.L.); (J.-L.R.)
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- Centre for Environmental Sciences, Hasselt University, 3590 Diepenbeek, Belgium
| | - Ellen Geerdens
- Laboratory Molecular Diagnostics, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (E.G.); (B.M.); (B.C.)
| | - Loes Linsen
- Laboratory Experimental Hematology, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (C.C.); (L.L.); (J.-L.R.)
- Activity Center Biobanking, University Hospitals Leuven, 3000 Leuven, Belgium
- University Biobank Limburg (UBiLim), Clinical Biobank, Jessa Hospital, 3500 Hasselt, Belgium
| | - Kimberly Vanhees
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- University Biobank Limburg (UBiLim), Clinical Biobank, Jessa Hospital, 3500 Hasselt, Belgium
| | - Brigitte Maes
- Laboratory Molecular Diagnostics, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (E.G.); (B.M.); (B.C.)
| | - Koen Theunissen
- Department Hematology, Jessa Hospital, 3500 Hasselt, Belgium;
| | - Bert Cruys
- Laboratory Molecular Diagnostics, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (E.G.); (B.M.); (B.C.)
| | - Marta Lionetti
- Department Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (M.L.); (N.B.)
| | - Ingrid Arijs
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- Laboratory for Translational Genetics, Department Human Genetics, University of Leuven, 3000 Leuven, Belgium
- Belgian Inflammatory Bowel Disease Research and Development (BIRD), 1930 Zaventem, Belgium
| | - Niccolò Bolli
- Department Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy; (M.L.); (N.B.)
- Unità Operativa Complessa di Ematologia, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Guy Froyen
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- Laboratory Molecular Diagnostics, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (E.G.); (B.M.); (B.C.)
| | - Jean-Luc Rummens
- Laboratory Experimental Hematology, Department Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium; (C.C.); (L.L.); (J.-L.R.)
- Faculty of Medicine and Life Sciences, Hasselt University, 3500 Hasselt, Belgium; (K.V.); (I.A.); (G.F.)
- University Biobank Limburg (UBiLim), Clinical Biobank, Jessa Hospital, 3500 Hasselt, Belgium
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50
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Advances in MGUS diagnosis, risk stratification, and management: introducing myeloma-defining genomic events. Hematology 2021; 2021:662-672. [DOI: 10.1182/hematology.2021000303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
In the 1960s, Dr Jan Waldenström argued that patients who had monoclonal proteins without any symptoms or evidence of end-organ damage represented a benign monoclonal gammopathy. In 1978, Dr Robert Kyle introduced the concept of “monoclonal gammopathy of undetermined significance” (MGUS) given that, at diagnosis, it was not possible with available methods (ie, serum protein electrophoresis to define the concentration of M-proteins and microscopy to determine the plasma cell percentage in bone marrow aspirates) to determine which patients would ultimately progress to multiple myeloma. The application of low-input whole-genome sequencing (WGS) technology has circumvented previous problems related to volume of clonal plasma cells and contamination by normal plasma cells and allowed for the interrogation of the WGS landscape of MGUS. As discussed in this chapter, the distribution of genetic events reveals striking differences and the existence of 2 biologically and clinically distinct entities of asymptomatic monoclonal gammopathies. Thus, we already have genomic tools to identify “myeloma-defining genomic events,” and consequently, it is reasonable to consider updating our preferred terminologies. When the clinical field is ready to move forward, we should be able to consolidate current terminologies—from current 7 clinical categories: low-risk MGUS, intermediate-risk MGUS, high-risk MGUS, low-risk smoldering myeloma, intermediate-risk smoldering myeloma, high-risk smoldering myeloma, and multiple myeloma—to future 3 genomic-based categories: monoclonal gammopathy, early detection of multiple myeloma (in which myeloma-defining genomic events already have been acquired), and multiple myeloma (patients who are already progressing and clinically defined cases). Ongoing investigations will continue to advance the field.
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