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Castello A, Caracciolo M, Urso L, Ortolan N, Nieri A, Panareo S, Bartolomei M. Incidental Findings of Acute Myeloid Leukemia in Sjögren's Syndrome Detected by Nuclear Medicine Techniques. Indian J Nucl Med 2022; 37:279-280. [PMID: 36686298 PMCID: PMC9855245 DOI: 10.4103/ijnm.ijnm_126_21] [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: 08/12/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 01/24/2023] Open
Abstract
A 46-year-old female with Sjögren's syndrome previously treated with corticosteroids was referred to our department for suspicious humeral head osteonecrosis. Dual-phase bone scan showed an increased radiotracer distribution in the head of the left humerus. Nevertheless, whole-body scan revealed multiple sites of heterogeneous skeletal uptake. As lymphoproliferative disorder was hypothesized, also based on laboratory examination, F-18 fluorodeoxyglucose positron-emission tomography/computed tomography was performed and showed increased uptake in several osseous structures and in the subcutaneous nodules. Finally, bone marrow biopsy confirmed the diagnosis of acute myeloid leukemia as well as skin nodule biopsy revealed infiltration by malignant cells.
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Affiliation(s)
- Angelo Castello
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Matteo Caracciolo
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Luca Urso
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Naima Ortolan
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Alberto Nieri
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Stefano Panareo
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
| | - Mirco Bartolomei
- Department of Oncological Medical and Specialists, Nuclear Medicine Unit, University Hospital of Ferrara, Ferrara, Italy
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Martin-Gutierrez L, Peng J, Thompson NL, Robinson GA, Naja M, Peckham H, Wu W, J'bari H, Ahwireng N, Waddington KE, Bradford CM, Varnier G, Gandhi A, Radmore R, Gupta V, Isenberg DA, Jury EC, Ciurtin C. Stratification of Patients With Sjögren's Syndrome and Patients With Systemic Lupus Erythematosus According to Two Shared Immune Cell Signatures, With Potential Therapeutic Implications. Arthritis Rheumatol 2021; 73:1626-1637. [PMID: 33645922 DOI: 10.1002/art.41708] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 02/18/2021] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Similarities in the clinical and laboratory features of primary Sjögren's syndrome (SS) and systemic lupus erythematosus (SLE) have led to attempts to treat patients with primary SS or SLE with similar biologic therapeutics. However, the results of many clinical trials are disappointing, and no biologic treatments are licensed for use in primary SS, while only a few biologic agents are available to treat SLE patients whose disease has remained refractory to other treatments. With the aim of improving treatment selections, this study was undertaken to identify distinct immunologic signatures in patients with primary SS and patients with SLE, using a stratification approach based on immune cell endotypes. METHODS Immunophentyping of 29 immune cell subsets was performed using flow cytometry in peripheral blood from patients with primary SS (n = 45), patients with SLE (n = 29), and patients with secondary SS associated with SLE (SLE/SS) (n = 14), all of whom were considered to have low disease activity or be in clinical remission, and sex-matched healthy controls (n = 31). Data were analyzed using supervised machine learning (balanced random forest, sparse partial least squares discriminant analysis), logistic regression, and multiple t-tests. Patients were stratified by K-means clustering and clinical trajectory analysis. RESULTS Patients with primary SS and patients with SLE had a similar immunologic architecture despite having different clinical presentations and prognoses. Stratification of the combined primary SS, SLE, and SLE/SS patient cohorts by K-means cluster analysis revealed 2 endotypes, characterized by distinct immune cell profiles spanning the diagnoses. A signature of 8 T cell subsets that distinctly differentiated the 2 endotypes with high accuracy (area under the curve 0.9979) was identified in logistic regression and machine learning models. In clinical trajectory analyses, the change in damage scores and disease activity levels from baseline to 5 years differed between the 2 endotypes. CONCLUSION These findings identify an immune cell toolkit that may be useful for differentiating, with high accuracy, the immunologic profiles of patients with primary SS and patients with SLE as a way to achieve targeted therapeutic approaches.
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Affiliation(s)
| | | | | | | | - Meena Naja
- University College London and University College London Hospitals, London, UK
| | | | | | | | | | | | | | | | | | | | - Vivek Gupta
- University College London Hospitals, London, UK
| | - David A Isenberg
- University College London and University College London Hospitals, London, UK
| | - Elizabeth C Jury
- University College London and University College London Hospitals, London, UK
| | - Coziana Ciurtin
- University College London and University College London Hospitals, London, UK
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3
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Ingravallo G, Maiorano E, Moschetta M, Limongelli L, Mastropasqua MG, Agazzino GF, De Ruvo V, Tarantino P, Favia G, Capodiferro S. Primary Breast Extranodal Marginal Zone Lymphoma in Primary Sjögren Syndrome: Case Presentation and Relevant Literature. J Clin Med 2020; 9:jcm9123997. [PMID: 33321727 PMCID: PMC7764276 DOI: 10.3390/jcm9123997] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/12/2022] Open
Abstract
The association between autoimmune diseases, mostly rheumatoid arthritis, systemic lupus erythematosus, celiac disease and Sjögren syndrome, and lymphoma, has been widely demonstrated by several epidemiologic studies. By a mechanism which has not yet been entirely elucidated, chronic activation/stimulation of the immune system, along with the administration of specific treatments, may lead to the onset of different types of lymphoma in such patients. Specifically, patients affected by Sjögren syndrome may develop lymphomas many years after the original diagnosis. Several epidemiologic, hematologic, and histological features may anticipate the progression from Sjögren syndrome into lymphoma but, to the best of our knowledge, a definite pathogenetic mechanism for such progression is still missing. In fact, while the association between Sjögren syndrome and non-Hodgkin lymphoma, mostly extranodal marginal zone lymphomas and, less often, diffuse large B-cell, is well established, many other variables, such as time of onset, gender predilection, sites of occurrence, subtype of lymphoma, and predictive factors, still remain unclear. We report on a rare case of primary breast lymphoma occurring three years after the diagnosis of Sjögren syndrome in a 57-year-old patient. The diagnostic work-up, including radiograms, core needle biopsy, and histological examination, is discussed, along with emerging data from the recent literature, thus highlighting the usefulness of breast surveillance in Sjögren syndrome patients.
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Affiliation(s)
- Giuseppe Ingravallo
- Department of Emergency and Organ Transplantation—Section of Pathology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (E.M.); (M.G.M.); (G.F.A.); (P.T.)
- Correspondence:
| | - Eugenio Maiorano
- Department of Emergency and Organ Transplantation—Section of Pathology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (E.M.); (M.G.M.); (G.F.A.); (P.T.)
| | - Marco Moschetta
- Department of Emergency and Organ Transplantation—Breast Unit, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (M.M.); (V.D.R.)
| | - Luisa Limongelli
- Department of Interdisciplinary Medicine—Section of Odontostomatology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (L.L.); (G.F.); (S.C.)
| | - Mauro Giuseppe Mastropasqua
- Department of Emergency and Organ Transplantation—Section of Pathology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (E.M.); (M.G.M.); (G.F.A.); (P.T.)
| | - Gisella Franca Agazzino
- Department of Emergency and Organ Transplantation—Section of Pathology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (E.M.); (M.G.M.); (G.F.A.); (P.T.)
| | - Vincenzo De Ruvo
- Department of Emergency and Organ Transplantation—Breast Unit, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (M.M.); (V.D.R.)
| | - Paola Tarantino
- Department of Emergency and Organ Transplantation—Section of Pathology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (E.M.); (M.G.M.); (G.F.A.); (P.T.)
| | - Gianfranco Favia
- Department of Interdisciplinary Medicine—Section of Odontostomatology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (L.L.); (G.F.); (S.C.)
| | - Saverio Capodiferro
- Department of Interdisciplinary Medicine—Section of Odontostomatology, University of Bari Aldo Moro, Piazza G. Cesare, 11, 70124 Bari, Italy; (L.L.); (G.F.); (S.C.)
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Extraglandular ocular involvement and morbidity and mortality in primary Sjögren's Syndrome. PLoS One 2020; 15:e0239769. [PMID: 32976549 PMCID: PMC7518584 DOI: 10.1371/journal.pone.0239769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 09/13/2020] [Indexed: 12/31/2022] Open
Abstract
Purpose To report the significance of extraglandular ocular involvement and long-term systemic morbidity and mortality in primary Sjögren’s Syndrome (SS). Methods This retrospective, longitudinal cohort study included consecutive patients with primary SS evaluated at a tertiary referral center. An electronic chart review was performed and all available data were extracted from clinic visits between October 1999 and March 2019. The primary outcome measures included occurrence of extraglandular ocular manifestations of SS, serological markers, prevalence of malignancy, and incidence of death. Results One hundred and twenty-six SS patients with minimum 3 years of follow-up (median 9.6, range 3.0–15.9 years, total of 1,235 patient-years) were included. Of those, 10 patients with inflammatory keratolysis or scleritis had 2.3 times greater likelihood of death compared to the rest of the cohort (OR = 2.3, 95% confidence interval [CI] 0.5 to 4.0, p = 0.01) due to SS related complications. The lifetime prevalence of any malignancy in the entire cohort was 15.5%. The most common hematologic malignancy was non-Hodgkin’s lymphoma (4.8%) and the most common solid malignancy was breast cancer (6.0%). Men SS patients were more likely to have a history of or concurrent malignancy compared to women (30.0% versus 13.7%, p = 0.16) and double the mortality (OR = 2.1, 95% CI 0.09 to 1.4, p = 0.04), independent of malignancy. Conclusions SS patients with serious ocular manifestations, particularly men, may be at greater risk for mortality due to SS complications. The eye seems to be the barometer of systemic disease activity.
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Analysis of ocular surface damage and visual impact in patients with primary and secondary Sjögren syndrome. Rheumatol Int 2020; 40:1249-1257. [PMID: 32242261 DOI: 10.1007/s00296-020-04568-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/24/2020] [Indexed: 12/14/2022]
Abstract
The objective of this study is to review the ocular surface changes and complications of patients with Sjögren syndrome and assess their visual impact. A retrospective, cross-sectional, observational, and descriptive study of patients with Sjögren syndrome diagnosed according to the American-European Consensus Group criteria was designed. Data including age, gender, the reason for consultation, associated systemic disease, visual acuity, and ocular complications were recorded. Dry eye tests including tear meniscus thickness; tear film break-up time; ocular surface staining (fluorescein and lissamine green); and Schirmer I test were performed. A total of 249 patients, 233 women (93.6%) and 16 men (6.4%) were studied. Meibomian gland dysfunction was found in 46% (n = 229 eyes) patients; shortened tear film break-up time in 44% (n = 220 eyes); decreased tear meniscus in 49% (n = 243 eyes); significant superficial punctate keratopathy in 49% (n = 242 eyes); a mean ocular surface staining score of 5.92 points; and a low score for Schirmer I test (mean = 5.4 mm). Eyes with a 4 + corneal fluorescein score showed the worst BCVA (mean = 0.63 ± 0.66 LogMAR, ≤ 20/80 Snellen eq., 95% CI 0.29-0.97), compared to 1 + to 3 + scores (mean = 0.211 ± 0.37 LogMAR, 20/32 Snellen eq., 95% CI 0.53-1.15). Ten eyes (4.0%) presented central corneal ulceration with a mean visual acuity of 20/500 (96% visual loss). Ocular surface alterations related to severe dry eye and complications from Sjögren syndrome may have a significant impact on visual acuity. Secondary Sjögren syndrome to rheumatoid arthritis had the worse dry eye prognosis, visual outcome, and ocular complications.
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De Vita S, Gandolfo S. Predicting lymphoma development in patients with Sjögren's syndrome. Expert Rev Clin Immunol 2019; 15:929-938. [PMID: 31347413 DOI: 10.1080/1744666x.2019.1649596] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction: The issue of predicting lymphoma in primary Sjögren's syndrome (pSS) starts from its clinical and biologic essence, i.e., an autoimmune exocrinopathy with sicca syndrome, inflammation and lymphoproliferation of MALT (mucosa-associated lymphoid tissue) in exocrine glands. Areas covered: The two major predictors to be firstly focused are persistent salivary gland (SG) swelling and cryoglobulinemic vasculitis with related features as purpura and low C4, or the sole serum cryoglobulinemia repeatedly detected. They are pathogenetically linked and reflect a heavier MALT involvement by histopathology, with the expansion of peculiar rheumatoid factor (RF)-positive clones/idiotypes. Other predictors include lymphadenopathy, splenomegaly, neutropenia, lymphopenia, serum beta2-microglobulin, monoclonal immunoglobulins, light chains, and RF. Composite indexes/scores may also predict lymphoma. Expert opinion: Prediction at baseline needs amelioration, and must be repeated in the follow-up. Careful clinical characterization, with harmonization and stratification of large cohorts, is a relevant preliminary step. Validated and new biomarkers are needed in biologic fluids and tissues. SG echography with automatic scoring could represent a future imaging biomarker, still lacking. Scoring MALT involvement in pSS, as an additional tool to evaluate disease activity and possibly to predict lymphoma, is welcomed. All these efforts are now ongoing within the HarmonicSS project and in other research initiatives in pSS.
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Affiliation(s)
- Salvatore De Vita
- Rheumatology Clinic, Udine University Hospital, Department of Medical Area, University of Udine , Udine , Italy
| | - Saviana Gandolfo
- Rheumatology Clinic, Udine University Hospital, Department of Medical Area, University of Udine , Udine , Italy
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7
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Abstract
PURPOSE Sjögren's syndrome (SS) is a common autoimmune disease affecting about four million Americans. Although approximately 1 in 10 patients with clinically-significant aqueous deficient dry eye has underlying SS, widespread underappreciation of SS leads to significant underdiagnosis, delays in diagnosis, and consequent morbidity and mortality. The purpose of this article is to illustrate that in addition to dry eye, SS can cause serious, vision-threatening extraglandular ocular manifestations. METHODS We conducted a narrative review of studies that have examined the dry eye and extraglandular ocular complications of SS. RESULTS SS-related dry eye is a progressive condition with major negative impact on the quality-of-life of afflicted patients, not only due to symptoms of ocular discomfort but also visual dysfunction. In addition, SS can lead to corneal melt/perforation, uveitis, scleritis, retinal vasculitis, and optic neuritis. A major problem with currently-available SS disease activity measurement instruments is the lack of domains evaluating dry eye-related visual dysfunction. For example, one of the most commonly-used instruments for assessing patient symptoms in SS (the EULAR Sjögren's Syndrome Patient Reported Index [ESSPRI]) only includes one item (out of three) that addresses the severity of overall dryness, without mention of dry eye symptoms or vision-related quality-of-life. Similarly, no extraglandular ocular complications are included in currently-available SS disease activity instruments (e.g., the EULAR Sjögren's Syndrome Disease Activity Index [ESSDAI]). CONCLUSIONS There needs to be a paradigm shift in which eye care providers and rheumatologists become more familiar with various SS-related extraglandular ocular manifestations. Existing disease activity measurement instruments must incorporate dry eye symptoms, particularly those related to visual dysfunction. An evidence-based screening algorithm for determining which patients with dry eye should be tested for underlying SS may be particularly helpful in preventing delays in diagnosis.
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8
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Dry Eye Syndrome Preferred Practice Pattern®. Ophthalmology 2019; 126:P286-P334. [DOI: 10.1016/j.ophtha.2018.10.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 10/09/2018] [Indexed: 01/04/2023] Open
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Kimman J, Bossuyt X, Blockmans D. Prognostic value of cryoglobulins, protein electrophoresis, and serum immunoglobulins for lymphoma development in patients with Sjögren's syndrome. A retrospective cohort study. Acta Clin Belg 2018; 73:169-181. [PMID: 28971741 DOI: 10.1080/17843286.2017.1373966] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Patients with Sjögren's syndrome (SS) have a considerable higher risk of lymphoma development. OBJECTIVES To determine the incidence of lymphoma and the value of biomarkers to predict lymphoma development in patients with SS. METHODS Clinical files of all patients with a presumed diagnosis of SS between 1991 and 2016 were retrospectively reviewed for the development of lymphoma. Biochemical data were plotted as a function of the relative time before and after the lymphoma diagnosis (for patients who developed lymphoma) or before the last available blood test (for patients who did not develop lymphoma). Correlations between several biochemical parameters and development of lymphoma were analyzed by logistic regression. In order to evaluate the evolution of cryoglobulins, a random effect model with random intercepts was used. RESULTS Sixteen patients developed a lymphoma (prevalence 8.9%; median follow-up 6 years). Cryoglobulins were significantly higher in these patients (n = 16), when compared to the rest of patients (n = 164) without lymphoma (121 ± 250 versus 8 ± 24.9 mg/L for IgG; 231 ± 422 versus 13 ± 30 mg/L for IgM; 10 ± 20 versus 1 ± 4 mg/L for IgA in the cryoprecipitate). Cryoglobulin-levels were significantly more increasing (p-values for IgG = 0.0007; for IgM = 0.0123; and for IgA in the cryoprecipitate <0.0001) in the time period before the lymphoma diagnosis (patients with lymphoma) compared to the time period before the last available blood test (patients without lymphoma). Also low (i.e. under the detection limit) C3 (OR 13.9) or C4 (OR 7.1) levels, a progressively decreasing total complement activity (OR 6.6), progressively decreasing gammaglobulins (OR 13.4), a persistent detection of monoclonal bands (OR 14.6) on protein electrophoresis, a persistent low or decreasing serum IgG (OR 18), and decreasing IgM-serum levels (OR 17.7) were significantly associated with lymphoma. CONCLUSION Periodically follow-up of laboratory markers, such as cryogloblins, over time proved to be an accurate way to predict lymphoma.
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Affiliation(s)
- Jesse Kimman
- Department of General Internal Medicine, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Xavier Bossuyt
- Department of Laboratory Medicine, Immunology, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Daniel Blockmans
- Department of General Internal Medicine, University Hospitals Leuven, Katholieke Universiteit Leuven, Leuven, Belgium
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Unique glandular ex-vivo Th1 and Th17 receptor motifs in Sjögren's syndrome patients using single-cell analysis. Clin Immunol 2018; 192:58-67. [PMID: 29679709 DOI: 10.1016/j.clim.2018.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/28/2018] [Accepted: 04/17/2018] [Indexed: 02/06/2023]
Abstract
Primary Sjögren's syndrome (pSS) is an autoimmune disease in which the underlying cause has yet to be elucidated. The main objective of this study was to determine the T cell receptor (TCR) repertoires of individual infiltrating T helper (Th)-1 and 17 cells of pSS patients using single-cell analysis. Single-cell analysis of ex-vivo infiltrating T cells demonstrated that pSS patients had higher frequencies of activated Th17 cells. Single-cell TCR sequencing revealed that TCRβ variable (TRBV)3-1/joint (J)1-2 (CLFLSMSACVW) and TRBV20-1/J1-1 (SVGSTAIPP*T) were expressed by activated Th1 and Th17 cells in both cohorts. Uniquely, TCRα variable (TRAV)8-2/J5 (VVSDTVLETAGE) was expressed by Th1 cells present only in patients and complementarity-determining region (CDR)3α-specific motif (LSTD*E) present in both Th1/Th17 cells. The study demonstrates that both activated Th1 and Th17 cells of pSS patients showed restricted clonal diversities of which two CDR3 motifs were present in controls and patients, with another two motifs unique to pSS.
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11
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Uehara N, Otsuki N, Shinomiya H, Uehara K, Nibu KI. Mucosa-associated lymphoid tissue lymphoma of parotid gland with involvement of subglottis and trachea. ACTA OTO-LARYNGOLOGICA CASE REPORTS 2018. [DOI: 10.1080/23772484.2018.1532294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Natsumi Uehara
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, School of Medicine, Chuo-ku, Japan
| | - Naoki Otsuki
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, School of Medicine, Chuo-ku, Japan
| | - Hirotaka Shinomiya
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, School of Medicine, Chuo-ku, Japan
| | - Keiichiro Uehara
- Department of Diagnostic Pathology, Kobe University Hospital, Chuo-ku, Japan
| | - Ken-ichi Nibu
- Department of Otolaryngology-Head and Neck Surgery, Kobe University Graduate School of Medicine, School of Medicine, Chuo-ku, Japan
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12
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Wanchoo A, Voigt A, Sukumaran S, Stewart CM, Bhattacharya I, Nguyen CQ. Single-cell analysis reveals sexually dimorphic repertoires of Interferon-γ and IL-17A producing T cells in salivary glands of Sjögren's syndrome mice. Sci Rep 2017; 7:12512. [PMID: 28970488 PMCID: PMC5624952 DOI: 10.1038/s41598-017-12627-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 09/13/2017] [Indexed: 12/23/2022] Open
Abstract
The development of Sjögren's syndrome (SjS) is a dynamic and temporal process with a female predilection. Following the initial influx of immune cells, T cell clusters develop, accelerating the pathology in the salivary glands. Proinflammatory cytokines, IFN-γ and IL-17A, produced by T cells contribute synergistically to the disease. In this study, we examined the sexual dimorphism in cellular infiltrates of the salivary glands by using functional single-cell microengraving analysis. Using high-throughput sequencing, we investigated the clonal diversity of the T cell receptors (TCRs) of infiltrating IFN-γ and IL-17A-producing T cells in male and female SjS-susceptible (SjSs) C57BL/6.NOD-Aec1Aec2 mice. There were elevated frequencies of IFN-γ and IL-17A-producing effector T cell populations in female SjSS mice compared to male SjSS mice. MEME analysis shows high frequency and unique, sexually dimorphic motifs in the TCR hypervariable regions in the SjSS mice. Male mice selected for TRAV8/TRAJ52 (CATDLNTGANTGKLTFG) TCR genes in Th1 cells and TRBV16/(TRBD1/2)TRBJ1-7 (CGGKRRLESIFR) in Th1 and Th17 cells. Female SjSS mice selected for TRAV8/TRAJ52 (CATDLNTGANTGKLTFG), TRAV13D-2/TRAJ23 (CVYLEHHFE), and TRBV23/(TRBD2)TRBJ2-2 (CRKLHSCATCALNFL) in Th1 cells. These findings suggest that there is an elevated prevalence of pathogenic effector T cells in the glands with a sexually dimorphic selection bias of TCR repertoires.
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Affiliation(s)
- Arun Wanchoo
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA
| | - Alexandria Voigt
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA
| | - Sukesh Sukumaran
- Rheumatology Section, University of Arkansas for Medical Sciences, Arkansas Children's Hospital, Little Rock Arkansas, USA
| | - Carol M Stewart
- Department of Oral and Maxillofacial Diagnostic Sciences, Gainesville Florida, USA
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA
| | - Indraneel Bhattacharya
- Department of Oral and Maxillofacial Diagnostic Sciences, Gainesville Florida, USA
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA
| | - Cuong Q Nguyen
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, Gainesville Florida, USA.
- Department of Oral Biology, Gainesville Florida, USA.
- Center of Orphaned Autoimmune Diseases, University of Florida, Gainesville Florida, USA.
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13
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TFOS DEWS II Diagnostic Methodology report. Ocul Surf 2017; 15:539-574. [DOI: 10.1016/j.jtos.2017.05.001] [Citation(s) in RCA: 836] [Impact Index Per Article: 119.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2017] [Accepted: 05/01/2017] [Indexed: 01/09/2023]
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14
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Peck AB, Nguyen CQ. What can Sjögren's syndrome-like disease in mice contribute to human Sjögren's syndrome? Clin Immunol 2017; 182:14-23. [PMID: 28478104 DOI: 10.1016/j.clim.2017.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 05/01/2017] [Accepted: 05/01/2017] [Indexed: 12/12/2022]
Abstract
For decades, Sjögren's syndrome (SS) and Sjögren's syndrome-like (SS-like) disease in patients and mouse models, respectively, have been intensely investigated in attempts to identify the underlying etiologies, the pathophysiological changes defining disease phenotypes, the nature of the autoimmune responses, and the propensity for developing B cell lymphomas. An emerging question is whether the generation of a multitude of mouse models and the data obtained from their studies is actually important to the understanding of the human disease and potential interventional therapies. In this brief report, we comment on how and why mouse models can stimulate interest in specific lines of research that apparently parallel aspects of human SS. Focusing on two mouse models, NOD and B6·Il14α, we present the possible relevance of mouse models to human SS, highlighting a few selected disease-associated biological processes that have baffled both SS and SS-like investigations for decades.
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Affiliation(s)
- Ammon B Peck
- Department of Pathology and Infectious Diseases, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; Center for Orphan Autoimmune Disorders, College of Dentistry, University of Florida, Gainesville, FL 32608, USA.
| | - Cuong Q Nguyen
- Department of Pathology and Infectious Diseases, College of Veterinary Medicine, University of Florida, Gainesville, FL 32608, USA; Center for Orphan Autoimmune Disorders, College of Dentistry, University of Florida, Gainesville, FL 32608, USA; Department of Oral Biology, College of Dentistry, University of Florida, FL 32608, USA
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Bunya VY, Bhosai SJ, Heidenreich AM, Kitagawa K, Larkin GB, Lietman TM, Gaynor BD, Akpek EK, Massaro-Giordano M, Srinivasan M, Porco TC, Whitcher JP, Shiboski SC, Criswell LA, Shiboski CH. Association of Dry Eye Tests With Extraocular Signs Among 3514 Participants in the Sjögren's Syndrome International Registry. Am J Ophthalmol 2016; 172:87-93. [PMID: 27644591 DOI: 10.1016/j.ajo.2016.09.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 08/29/2016] [Accepted: 09/09/2016] [Indexed: 12/25/2022]
Abstract
PURPOSE To identify a screening strategy for dry eye patients with a high likelihood of having Sjogren syndrome (SS) through the evaluation of the association of ocular surface tests with the extraocular signs used for the diagnosis of SS. DESIGN Multicenter cross-sectional study. METHODS The Sjogren's International Clinical Collaborative Alliance (SICCA) registry enrolled 3514 participants with SS or possible SS from 9 international academic sites. Ocular surface evaluation included Schirmer I testing, tear breakup time (TBUT), and staining of the cornea (0-6 points) and conjunctiva (0-6 points). Multivariate logistic regression analysis was performed to identify predictive factors for (1) histopathologic changes on labial salivary gland (LSG) biopsies (positive = focus score of ≥1 focus/4 mm2) and (2) positive anti-SSA/B serology. RESULTS The adjusted odds of having a positive LSG biopsy were significantly higher among those with an abnormal Schirmer I test (adjusted OR = 1.26, 95% CI 1.05-1.51, P = .014) and positive conjunctival staining (for each additional unit of staining 1.46; 95% CI 1.39-1.53, P < .001) or corneal staining (for each additional unit of staining 1.14; 95% CI 1.08-1.21, P < .001). The odds of having a positive serology were significantly higher among those with an abnormal Schirmer I test (adjusted OR = 1.3; 95% CI 1.09-1.54, P = .004) and conjunctival staining (adjusted OR = 1.51; 95% CI 1.43-1.58, P < .001). CONCLUSIONS In addition to corneal staining, which was associated with a higher likelihood of having a positive LSG biopsy, conjunctival staining and abnormal Schirmer I testing are of critical importance to include when screening dry eye patients for possible SS, as they were associated with a higher likelihood of having a positive LSG biopsy and serology.
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Sjögren's Syndrome Complicated by Myeloid/Natural Killer Cell Precursor Acute Leukemia: Case Report and Review of the Literature. Case Rep Hematol 2016; 2016:8261249. [PMID: 27882252 PMCID: PMC5108846 DOI: 10.1155/2016/8261249] [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: 06/09/2016] [Revised: 08/17/2016] [Accepted: 09/04/2016] [Indexed: 11/28/2022] Open
Abstract
We report a case of Sjögren's syndrome (SS) complicated by myeloid/natural killer (NK) cell precursor acute leukemia (M/NKPAL). A 75-year-old woman with a previous SS history for 2 years was routinely treated. Peripheral blood progenitor cells were increased, and subsequent bone marrow cell morphology examination showed the presence of acute myeloid leukemia type M4. However, flow cytometry analysis revealed that CD7/CD56/CD33/CD34/HLA-DR/cCD3 were all positive and myeloperoxidase- (MPO-) specific staining, other T cells, NK cells, and myeloid markers were all negative. Clonal T-cell receptor (TCR)β/TCRγ/TCRδ gene rearrangements and Epstein-Barr virus (EBV) were negative. The diagnosis of M/NKPAL was therefore confirmed. Unfortunately, this patient did not receive chemotherapy and later died of acute left heart failure and respiratory failure. SS complication with M/NKPAL is relatively rare. Combined with the relevant literatures, our study offers new insights into the clinical characteristics, pathological features, possible pathogenesis, and differential diagnosis of this rare disease.
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Abstract
One of the main characteristics of primary Sjögren's syndrome (pSS) is chronic dysfunction and destruction of the salivary and lacrimal glands; their secretory biofluids should reflect the glandular biological status. Saliva is a heterogeneous biofluid comprised of biomolecules and omics constituents that are altered in response to various diseases. Scientific effort has evaluated saliva proteome to diagnose, monitor, and prognosticate pSS. This article reviews the recent advances in salivary proteomics in the context of pSS, highlighting the most significant and promising findings. Determining saliva as a credible means of early disease detection could lead to translational advantages and significant clinical opportunities for pSS.
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Evans RDR, Laing CM, Ciurtin C, Walsh SB. Tubulointerstitial nephritis in primary Sjögren syndrome: clinical manifestations and response to treatment. BMC Musculoskelet Disord 2016; 17:2. [PMID: 26728714 PMCID: PMC4700638 DOI: 10.1186/s12891-015-0858-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 12/21/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Primary Sjögren syndrome (pSS) is a common autoimmune condition which primarily affects epithelial tissue, often including the kidney causing either tubulointerstitial nephritis (TIN) or more rarely, an immune complex related glomerulonephritis. METHODS We describe the clinical, biochemical and histological characteristics of 12 patients with pSS related TIN and their response to treatment with antiproliferative agents. All 12 patients were investigated and treated at the UCL Centre for Nephrology in London. RESULTS All patients had TIN demonstrated via needle biopsy; immunophenotyping showed that the interstitial infiltrate was predominantly a CD4+ T-cell infiltrate. Urinary acidification testing demonstrated distal renal tubular acidosis in 8 patients. Proximal tubular dysfunction was present in 5 patients. All but 1 patient were treated with antiproliferative agents and most also with a reducing course of steroids. In the treated patients, there was a significant improvement in the serum creatinine and measured GFR. CONCLUSION Patients with pSS TIN have significant renal impairment and other functional tubular defects. There is a mononuclear lymphocytic infiltrate on renal biopsy and this appears to be mainly a CD4+ T-cell infiltrate. Treatment with mycophenolate (and corticosteroids) improves the renal function in patients with pSS TIN.
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Affiliation(s)
- Rhys D R Evans
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street, London, NW3 2PF, UK.
| | - Christopher M Laing
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street, London, NW3 2PF, UK.
| | - Coziana Ciurtin
- Department of Rheumatology, University College London Hospital, NHS Trust, 3rd Floor Central, 250 Euston Road, London, NW1 2PG, UK.
| | - Stephen B Walsh
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street, London, NW3 2PF, UK.
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Abstract
The emerging epidemic of Hodgkin and non-Hodgkin lymphomas worldwide continues to defy our understanding and forces the search for the causative factors. Adjuvants are known to act as triggers of immune and inflammatory responses. Animal experiments have demonstrated that long-term inflammation is related to aggravation of the immune network resulting in cellular and humoral responses leading to autoimmunity and lymphoma development. Chronic stimulation of the immune system is thought to be the key mechanism through which infectious diseases as well as autoimmune diseases can lead to lymphomagenesis. Many adjuvants can act similarly perturbing immune system's function, inducing a state of prolonged immune activation related to chronic lymphatic drainage. Several mechanisms were proposed by which adjuvants induce inflammation, and they are discussed herein. Some of them are triggering inflammasome; others bind DNA, lipid moieties in cells, induce uric acid production or act as lipophilic and/or hydrophobic substances. The sustained inflammation increases the risk of genetic aberrations, where the initial polyclonal activation ends in monoclonality. The latter is the hallmark of malignant lymphoma. Thus, chronic adjuvant stimulation may lead to lymphoma.
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Evans R, Zdebik A, Ciurtin C, Walsh SB. Renal involvement in primary Sjögren's syndrome. Rheumatology (Oxford) 2015; 54:1541-8. [PMID: 26070939 DOI: 10.1093/rheumatology/kev223] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Indexed: 01/09/2023] Open
Abstract
SS is a prevalent and underdiagnosed systemic disease that primarily affects epithelial tissue. It may affect renal function either as epithelial disease causing tubulointerstitial nephritis or as an immune complex-mediated glomerulopathy. These lesions may cause a variety of clinical features, both overt and occult. The epithelial disease is mediated by B and T cells, notably the Th17 subtype. We review the prevalence of renal SS, its presentation, likely pathogenesis and treatment.
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Affiliation(s)
- Rhys Evans
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street and
| | - Anselm Zdebik
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street and
| | - Coziana Ciurtin
- Department of Rheumatology, University College London Hospital, London, UK
| | - Stephen B Walsh
- UCL Centre for Nephrology, UCL Medical School, Rowland Hill Street and
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Potter J, Bermudez L, Soren K, Isgro J. An 18-year-old female with weight loss and hypokalemia. Pediatr Ann 2015; 44:60-3. [PMID: 25658211 DOI: 10.3928/00904481-20150203-05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
PURPOSE The aim of this study was to review the frequency and types of inflammatory systemic diseases in a cohort of patients with dry eye, and identify clinical features suggesting the presence of these. METHODS Consecutive new patients with a primary diagnosis of dry eye evaluated at a tertiary dry eye center between January 2010 and December 2011 were reviewed retrospectively. Standardized questionnaires were used to obtain data regarding systemic symptoms, previous medical diagnoses, and family history. Dry eye evaluations included Schirmer testing, tear film break-up time, corneal fluorescein staining, and bulbar conjunctival lissamine green staining. Clinically significant dry eye was defined as having a Schirmer test score without anesthesia of ≤10 mm or conjunctival lissamine green staining of ≥1 using the Oxford scale. RESULTS A total of 228 new patients were analyzed. Of these, 47.4% (108/228) presented with a known diagnosis of inflammatory disease. Based on a review of systems and ocular examination, 81 patients (81/228) underwent a further work-up that revealed 25 additional diagnoses that were not known on presentation. The most common newly identified conditions included occult thyroid eye disease (n = 20), primary Sjögren Syndrome (4), and Sjögren Syndrome suspect (1). Female gender, family history of autoimmune disease, self-reported joint pain or dry mouth, external signs of orbital inflammation, and conjunctival chemosis were more common in patients with inflammatory systemic disease as compared with that in patients with no identifiable condition (P < 0.05 for all). CONCLUSIONS Systemic inflammatory diseases are frequently associated with dry eye in patients evaluated at a tertiary academic center. Diagnostic evaluations may help uncover previously undiagnosed significant conditions in about one-third of tested patients.
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Different lymphoproliferative disorders in different salivary glands of primary Sjögren syndrome. J Craniofac Surg 2014; 24:e462-5. [PMID: 24036814 DOI: 10.1097/scs.0b013e3182902ef4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We report 1 case of primary Sjögren syndrome that showed histologic variation and different lymphoproliferative disorders in different salivary glands.Different salivary glands can show a different transition situation with histologic variation and lymphoproliferative disorders. The larger salivary glands have more potentially progressive transition situation than smaller glands. These findings also supported the theory that the transition of reactive B cells from lymphoepithelial sialadenitis to monoclonal lymphoma is generally a multistep process in different salivary glands within 1 person.
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Ocular and systemic morbidity in a longitudinal cohort of Sjögren's syndrome. Ophthalmology 2014; 122:56-61. [PMID: 25178806 DOI: 10.1016/j.ophtha.2014.07.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 05/28/2014] [Accepted: 07/12/2014] [Indexed: 11/21/2022] Open
Abstract
PURPOSE To report vision-threatening ocular manifestations of primary Sjögren's syndrome (SS). DESIGN Retrospective review. PARTICIPANTS Consecutive patients evaluated at an SS center between January 2007 and May 2011. METHODS Data collection was completed in March 2013. The 2002 American-European consensus criteria were used for diagnosis of SS. MAIN OUTCOME MEASURES Frequency of extraglandular ocular findings and timing of their diagnosis relative to that of SS and dry eye were assessed. RESULTS One hundred sixty-three patients were included. Almost all patients (98%) had a history of dry eye for an average of 10.4 years (median, 7.9 years) before presentation. One or more extraglandular ocular manifestations were present in 40 patients (25%), and vision-threatening findings were present in 22 patients (13%). Twelve patients (55%) with a vision-threatening ocular finding did not have a diagnosis of SS at presentation. Sixty-eight patients (42%) had extraglandular systemic manifestations of SS. Patients with vision-threatening ocular findings were 3.9 times more likely to have systemic involvement (95% confidence interval, 1.4-11.0; P = 0.010). Peripheral neuropathy, interstitial nephritis, and vasculitis were more common in those with vision-threatening ocular findings compared with patients without (P < 0.05 for all). CONCLUSIONS These results from a tertiary referral-based cohort demonstrate that primary SS frequently is associated with ocular and systemic complications. Dry eye precedes these findings on average by 1 decade. Therefore, ophthalmologists should consider assessing for SS in patients with clinically significant dry eye.
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Identification of lymphoma predictors in patients with primary Sjögren’s syndrome: a systematic literature review and meta-analysis. Rheumatol Int 2014; 35:17-26. [DOI: 10.1007/s00296-014-3051-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Accepted: 05/16/2014] [Indexed: 12/23/2022]
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Absence of somatic MYD88 L265P mutations in patients with primary Sjogren's syndrome. Genes Immun 2013; 15:54-6. [PMID: 24153350 DOI: 10.1038/gene.2013.54] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 08/23/2013] [Accepted: 08/26/2013] [Indexed: 01/22/2023]
Abstract
Sjogren's syndrome (SS) is a chronic autoimmune disorder with the highest risk for lymphoma development among all autoimmune diseases. In order to evaluate whether the presence of the recently described MYD88 L265P mutation in patients with Waldenström's macroglobulinemia (WM) is contributory to SS-associated lymphomagenesis, a quantitative allele-specific PCR method was performed in peripheral blood derived from 90 SS patients as well as in minor salivary gland tissues derived from 12 primary SS patients with or without lymphoma. MYD88 L265P was not detected in either of the samples tested. Although the absence of the MyD88 L265P somatic mutation in our SS cohort does not exclude a common germline susceptibility gene in SS, it might suggest a distinct operating pathogenetic mechanism in SS-related lymphoma compared with WM and other hematological malignancies.
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Risselada AP, Kruize AA, Bijlsma JW. Clinical features distinguishing lymphoma development in primary Sjögren's syndrome—A retrospective cohort study. Semin Arthritis Rheum 2013; 43:171-7. [DOI: 10.1016/j.semarthrit.2013.03.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 03/13/2013] [Accepted: 03/14/2013] [Indexed: 02/06/2023]
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Dong L, Chen Y, Masaki Y, Okazaki T, Umehara H. Possible Mechanisms of Lymphoma Development in Sjögren's Syndrome. ACTA ACUST UNITED AC 2013; 9:13-22. [PMID: 23853604 PMCID: PMC3706954 DOI: 10.2174/1573395511309010003] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 04/28/2013] [Accepted: 05/02/2013] [Indexed: 02/08/2023]
Abstract
Primary Sjögren's syndrome (pSS) is a systemic as well as an organ-specific autoimmune disease characterized by lymphocytic infiltration of the glandular epithelial tissue. SS patients have been reported to be at highest risk of developing lymphoproliferative neoplasms, when compared with patients with other rheumatoid diseases. Factors such as cytokine stimulation, environmental factors, viral infection and genetic events as well as vitamin deficiency may contribute to the development of lymphoma. Over the past few decades, numerous efforts have been made to assess the relationship between lymphoma and SS. These include epidemiological surveys, molecular biologic assessments of clonality and well-linked register cohort studies evaluating the predictive value of clinical, laboratory and histological findings. Nevertheless, the mechanisms and factors predictive of lymphoma development in pSS patients remain to be defined. This review summarizes updated knowledge on the incidence of and risk factors for lymphoma development in pSS patients, as well as discussing the most recent findings on the development and treatment of lymphoma in pSS patients and the possible mechanism of lymphoma development.
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Affiliation(s)
- Lingli Dong
- Department of Hematology and Immunology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
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Antin-Ozerkis D, Rubinowitz A, Evans J, Homer RJ, Matthay RA. Interstitial lung disease in the connective tissue diseases. Clin Chest Med 2013; 33:123-49. [PMID: 22365251 DOI: 10.1016/j.ccm.2012.01.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The connective tissue diseases (CTDs) are inflammatory, immune-mediated disorders in which interstitial lung disease (ILD) is common and clinically important. Interstitial lung disease may be the first manifestation of a CTD in a previously healthy patient. CTD-associated ILD frequently presents with the gradual onset of cough and dyspnea, although rarely may present with fulminant respiratory failure. Infection and drug reaction should always be ruled out. A diagnosis of idiopathic ILD should never be made without a careful search for subtle evidence of underlying CTD. Treatment of CTD-ILD typically includes corticosteroids and immunosuppressive agents.
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Affiliation(s)
- Danielle Antin-Ozerkis
- Yale Interstitial Lung Disease Program, Pulmonary & Critical Care Medicine Section, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA.
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Bernatsky S, Ramsey-Goldman R, Labrecque J, Joseph L, Boivin JF, Petri M, Zoma A, Manzi S, Urowitz MB, Gladman D, Fortin PR, Ginzler E, Yelin E, Bae SC, Wallace DJ, Edworthy S, Jacobsen S, Gordon C, Dooley MA, Peschken CA, Hanly JG, Alarcón GS, Nived O, Ruiz-Irastorza G, Isenberg D, Rahman A, Witte T, Aranow C, Kamen DL, Steinsson K, Askanase A, Barr S, Criswell LA, Sturfelt G, Patel NM, Senécal JL, Zummer M, Pope JE, Ensworth S, El-Gabalawy H, McCarthy T, Dreyer L, Sibley J, St Pierre Y, Clarke AE. Cancer risk in systemic lupus: an updated international multi-centre cohort study. J Autoimmun 2013; 42:130-5. [PMID: 23410586 DOI: 10.1016/j.jaut.2012.12.009] [Citation(s) in RCA: 200] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Revised: 11/23/2012] [Accepted: 12/13/2012] [Indexed: 01/24/2023]
Abstract
OBJECTIVE To update estimates of cancer risk in SLE relative to the general population. METHODS A multisite international SLE cohort was linked with regional tumor registries. Standardized incidence ratios (SIRs) were calculated as the ratio of observed to expected cancers. RESULTS Across 30 centres, 16,409 patients were observed for 121,283 (average 7.4) person-years. In total, 644 cancers occurred. Some cancers, notably hematologic malignancies, were substantially increased (SIR 3.02, 95% confidence interval, CI, 2.48, 3.63), particularly non-Hodgkin's lymphoma, NHL (SIR 4.39, 95% CI 3.46, 5.49) and leukemia. In addition, increased risks of cancer of the vulva (SIR 3.78, 95% CI 1.52, 7.78), lung (SIR 1.30, 95% CI 1.04, 1.60), thyroid (SIR 1.76, 95% CI 1.13, 2.61) and possibly liver (SIR 1.87, 95% CI 0.97, 3.27) were suggested. However, a decreased risk was estimated for breast (SIR 0.73, 95% CI 0.61-0.88), endometrial (SIR 0.44, 95% CI 0.23-0.77), and possibly ovarian cancers (0.64, 95% CI 0.34-1.10). The variability of comparative rates across different cancers meant that only a small increased risk was estimated across all cancers (SIR 1.14, 95% CI 1.05, 1.23). CONCLUSION These data estimate only a small increased risk in SLE (versus the general population) for cancer over-all. However, there is clearly an increased risk of NHL, and cancers of the vulva, lung, thyroid, and possibly liver. It remains unclear to what extent the association with NHL is mediated by innate versus exogenous factors. Similarly, the etiology of the decreased breast, endometrial, and possibly ovarian cancer risk is uncertain, though investigations are ongoing.
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Affiliation(s)
- Sasha Bernatsky
- McGill University Health Centre, 687 Pine Avenue, V Building, Montreal, Quebec H3A 1A1, Canada.
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Pagano G, Castello G, Pallardó FV. Sjøgren's syndrome-associated oxidative stress and mitochondrial dysfunction: prospects for chemoprevention trials. Free Radic Res 2012; 47:71-3. [PMID: 23153390 DOI: 10.3109/10715762.2012.748904] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An involvement of oxidative stress (OS) was found in recent studies of Sjøgren's syndrome (SS) that reported significant changes in protein oxidation, myeloperoxidase activity, TNF-α, nitrotyrosine, and GSH levels in plasma from SS patients. Excess levels of OS markers, as oxidative DNA damage and propanoyl-lysine, were reported in saliva from SS patients. Previous reports concurred with a role of OS in SS pathogenesis, by showing a decreased expression of antioxidant activities in conjunctival epithelial cells of SS patients and in parotid gland tissue samples from SS patients. A link between OS and mitochondrial dysfunction (MDF) is recognized both on the grounds of the established role of mitochondria in reactive oxygen species (ROS) formation and by the occurrence of MDF in a set of OS-related disorders. Earlier studies detected mitochondrial alterations in cells from SS patients, related to the action of antimitochondrial autoantibodies, and affecting specific mitochondrial activities. Thus, a link between MDF and OS may be postulated in SS, prompting studies aimed at elucidating SS pathogenesis and in the prospect of chemoprevention trials in SS clinical management.
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Scofield AK, Radfar L, Ice JA, Vista E, Anaya JM, Houston G, Lewis D, Stone DU, Chodosh J, Hefner K, Lessard CJ, Moser KL, Scofield RH. Relation of sensory peripheral neuropathy in Sjögren syndrome to anti-Ro/SSA. J Clin Rheumatol 2012; 18:290-3. [PMID: 22955477 PMCID: PMC3577358 DOI: 10.1097/rhu.0b013e3182675e4f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Sjögren syndrome is a common, chronic autoimmune disease that typically produces inflammation and poor function of the salivary and lacrimal glands. Other organs can be affected, including the nervous system. Sensory peripheral neuropathy is a common manifestation of the disease. METHODS Eight-eight patients attending a dry eyes-dry mouth clinic were diagnosed to have primary Sjögren syndrome and underwent a neurological examination. Anti-Ro (or SSA) and anti-La (or SSB) were determined using immunodiffusion as well as Inno-Lia and BioPlex ANA screen. Serum vitamin B(12) levels were determined using an enzyme-linked microtiter plate assay. RESULTS Twenty-seven (31%) of the 88 patients had peripheral neuropathy as defined by loss of light touch, proprioception, or vibratory sensation. Anti-Ro and anti-La were found by immunodiffusion in 12 patients, and 8 of these 12 had neuropathy (χ(2) = 8.46, P = 0.0036, odds ratio = 6.0 compared to those without precipitating anti-Ro and anti-La). Of the 27 patients with only anti-Ro by immunodiffusion, 13 (48.1%) had neuropathy (χ(2) = 5.587, P = 0.018, compared to those without anti-Ro). There was no relationship of the other, more sensitive measures of anti-Ro and anti-La to neuropathy. In addition, we found no association of serum vitamin B(12) levels to neuropathy among these patients with Sjögren syndrome. CONCLUSIONS Sensory peripheral neuropathy is common among patients with Sjögren syndrome and is associated with the presence of anti-Ro and anti-La when determined by immunodiffusion.
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Affiliation(s)
- Amanda Kyle Scofield
- Arthritis & Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
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Gomes PDS, Juodzbalys G, Fernandes MH, Guobis Z. Advances in the Aetiophatogenesis of Sjögren's Syndrome: a Literature Review. J Oral Maxillofac Res 2012; 3:e2. [PMID: 24422004 PMCID: PMC3886091 DOI: 10.5037/jomr.2012.3102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 03/17/2012] [Indexed: 12/23/2022]
Abstract
OBJECTIVES The purpose of present paper is to review and critically address the recent advances on the aetiopathogenesis of the Sjögren's syndrome, taking into account the attained clinical features, with particular relevance given to the oral involvement. MATERIAL AND METHODS A comprehensive review of the available literature between 1970 and 2012, regarding to the aetiopathogenesis and clinical findings related to Sjögren's syndrome was conducted. Eligible studies were identified by searching the electronic literature PubMed, Medline, Embase, and ScienceDirect databases for relevant reports (last search update January 2012), combining the MESH heading term "Sjögren's syndrome", with the words "salivary glands, xerostomia, xerophtalmia, aetiology". The authors checked the references of the selected articles to identify additional eligible publications and contacted the authors, if necessary. RESULTS This article addresses a large number of the recent advances in the aetiopathogenesis of the disease, taking into account the attained clinical features of both local and systemic nature. Detailed mechanisms of the hypothesized influence of viral infections, genetic and hormonal factors, and the relevance of the altered glandular homeostasis are critically discussed with particular relevance given to the local and systemic involvement of Sjögren's syndrome. CONCLUSIONS The increasing number of data published recently on the aetiophatogenesis of Sjögren's syndrome strengthens the hypothesis that this condition, as all autoimmune diseases, is a multifactor disorder. Genetic predisposition, hormonal and environmental factors are thought to be implicated.
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Affiliation(s)
- Pedro de Sousa Gomes
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty
of Dental Medicine, University of PortoPortoPortugal.
| | - Gintaras Juodzbalys
- Department of Maxillofacial Surgery, Medical Academy, Lithuanian
University of Health SciencesKaunasLithuania.
| | - Maria Helena Fernandes
- Laboratory of Pharmacology and Cellular Biocompatibility, Faculty
of Dental Medicine, University of PortoPortoPortugal.
| | - Zygimantas Guobis
- Department of Dental and Oral Pathology, Medical Academy,
Lithuanian University of Health SciencesKaunasLithuania.
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Baldini C, Pepe P, Luciano N, Ferro F, Talarico R, Grossi S, Tavoni A, Bombardieri S. A clinical prediction rule for lymphoma development in primary Sjögren's syndrome. J Rheumatol 2012; 39:804-8. [PMID: 22337248 DOI: 10.3899/jrheum.110754] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To develop and validate a practical prediction rule for the progression from primary Sjögren's syndrome (pSS) to B cell non-Hodgkin's lymphoma (B cell NHL) based on the combination of routinely available clinical and serological disease variables. METHODS The case records of 563 patients with pSS were reviewed, and their demographic, clinical, and immunologic features were collected. Multivariate logistic regression analysis was performed to identify independent risk factors for lymphoma development and to create a propensity score for discrimination between patients at risk of B cell NHL and those patients not at risk. The model was internally validated by resampling procedures. RESULTS Out of 563 patients with pSS, 387 fulfilling the American European Consensus Group criteria (12 with B cell NHL, 375 without B cell NHL) were included in our study. Salivary gland enlargement (p = 0.001), low C3 (p = 0.035) and/or C4 levels (p = 0.021), and disease duration (p = 0.001) were identified as independent risk factors for B cell NHL in pSS. The optimal threshold of the propensity score was determined at Y = 4.26, which allowed us to identify patients who develop B cell NHL with a sensitivity of 78% and specificity of 95%. The leave-one-out cross-validated prediction error was 6%, and the median bootstrapped sensitivity and specificity were 71% and 95%, respectively. CONCLUSION We created a "bedside" prediction model for the identification of patients with pSS who are at risk for B cell NHL, which revealed an excellent discriminative ability and a good internal and external reproducibility.
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Affiliation(s)
- Chiara Baldini
- Rheumatology Unit, Department of Internal Medicine, University of Pisa, Via Roma 67, 56126 Pisa, Italy.
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Martel C, Gondran G, Launay D, Lalloué F, Palat S, Lambert M, Ly K, Loustaud-Ratti V, Bezanahary H, Hachulla E, Jauberteau MO, Vidal E, Hatron PY, Fauchais AL. Active Immunological Profile Is Associated with Systemic Sjögren’s Syndrome. J Clin Immunol 2011; 31:840-7. [DOI: 10.1007/s10875-011-9553-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Accepted: 05/27/2011] [Indexed: 10/18/2022]
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Váróczy L, Páyer E, Kádár Z, Gergely L, Miltényi Z, Magyari F, Szodoray P, Illés A. Malignant lymphomas and autoimmunity-a single center experience from Hungary. Clin Rheumatol 2011; 31:219-24. [PMID: 21735057 DOI: 10.1007/s10067-011-1807-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 04/30/2011] [Accepted: 06/20/2011] [Indexed: 12/17/2022]
Abstract
Autoimmune diseases and malignant lymphomas have numerous similarities in their etiology and pathogenesis. Patients with autoimmune disorders have increased risk to develop non-Hodgkin's lymphomas, yet little is known about the occurrence of autoimmune features within lymphoma patients. Our aim was to examine the prevalence of autoimmune diseases among patients with non-Hodgkin's (NHL) and Hodgkin's lymphoma (HL). We reviewed 352 patients' charts with malignant lymphomas to assess the rate of associated autoimmune diseases. Of 231 NHL patients, 30 (12.9%) had autoimmune disorders, while there were 11 patients who suffered from more than one disease entity. It was Sjögren's syndrome that occurred in the largest number (eight cases), other frequent entities were undifferentiated connective tissue disease (seven), thyroiditis (six), rheumatoid arthritis (four), and systemic vasculitis (four). The female/male ratio was significantly different between patients with or without autoimmune diseases, while no other clinical features differed significantly between the two groups. Ten patients (33.3%) were initially diagnosed with lymphoma, 13 (43.3%) of them had already been diagnosed with autoimmune disease at the time of lymphoma occurrence. Six patients (20%) with previously diagnosed immunological disorder developed new autoimmune condition after the treatment of lymphoma. Lymphoma and autoimmune disease occurred simultaneously in one patient. Among the 121 HL patients, 14 (11.5%) had associated autoimmune disease. Ten patients developed thyroiditis after the lymphoma treatment, two had immune thrombocytopenia, and one had autoimmune hemolytic anemia. One female patient was diagnosed with systemic sclerosis 10 years before the onset of HL. Our results highlight that an increased risk for the development of autoimmune diseases should be considered in patients both with NHL and HL.
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Affiliation(s)
- László Váróczy
- Third Department of Medicine, Medical and Health Science Center, University of Debrecen, Móricz Zs. krt. 22, 4032, Debrecen, Hungary.
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Kanda G, Ryu T, Shirai T, Ijichi M, Hishima T, Kitamura S, Bandai Y. Peripheral T-cell lymphoma that developed during the follow-up of IgG4-related disease. Intern Med 2011; 50:155-60. [PMID: 21245642 DOI: 10.2169/internalmedicine.50.4413] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
IgG4-related disease is a recently recognized fibroinflammatory disorder characterized by extensive IgG4-positive plasma cell and lymphocyte infiltration of various organs. The pancreatic manifestation of IgG4-related disease is called autoimmune pancreatitis (AIP), in which autoimmune mechanisms are likely involved. On the other hand, some autoimmune and chronic inflammatory disorders, such as Sjögren's syndrome and rheumatoid arthritis, are associated with increased risks of non-Hodgkin lymphoma (NHL). There have been a few reports of cases with IgG4-related disease that had subsequently developed NHL, however, all of them suffered from B-cell lymphoma. We describe the first case of NHL, compatible with a subtype of peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS), which arose in IgG4-related sclerosing cholangitis. As patients with IgG4-related disease may be at an increased risk of developing NHL, such presentation during the follow-up of IgG4-related disease should be carefully scrutinized to exclude NHL.
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Affiliation(s)
- Goki Kanda
- Department of Internal Medicine, Social Insurance Chuo General Hospital, Japan
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Shen L, Suresh L, Wu J, Xuan J, Li H, Zhang C, Pankewycz O, Ambrus JL. A role for lymphotoxin in primary Sjogren's disease. THE JOURNAL OF IMMUNOLOGY 2010; 185:6355-63. [PMID: 20952683 DOI: 10.4049/jimmunol.1001520] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The etiology of salivary gland injury in primary Sjögren's disease is not well understood. We have previously described a mouse model of Sjögren's disease, IL-14α transgenic (IL14αTG) mice, which reproduces many of the features of the human disease. We now demonstrate a critical role for lymphotoxin α (LTA) in the pathogenesis of Sjögren's disease in IL14αTG mice. IL14αTG mice express LTA mRNA in their salivary glands and spleen and produce soluble LTA protein in their salivary secretions. When IL14αTG mice were crossed with LTA(-/-) mice, the IL14αTG.LTA(-/-) mice retained normal salivary gland secretions and did not develop either lymphocytic infiltration of their salivary glands or secondary lymphomas. However, both IL14αTG and IL14αTG.LTA(-/-) mice produced similar amounts of IFN-α and had similar deposition of autoantibodies in their salivary glands. Both IL14α and IL14α/LTA(-/-) mice had similar B cell responses to T-dependent and T-independent Ags, L-selectin expression, and expression of RelA, RelB, and NF-κB2 in their spleens. These studies suggest that LTA plays a critical role in the local rather than systemic inflammatory process of Sjögren's disease. Furthermore, local production of soluble LTA in the salivary glands of IL14αTG mice is necessary for the development of overt Sjögren's disease. Autoantibody deposition alone is not sufficient to produce salivary gland dysfunction. We also demonstrate that LTA is increased in the salivary gland secretions and sera of patients with Sjögren's disease, further strengthening the biological relevance of the IL14αTG model to understanding the pathogenesis of human disease.
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Affiliation(s)
- Long Shen
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY 14203, USA
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Tektonidou MG. MALT lymphoma of the lacrimal gland in the context of systemic lupus erythematosus: complete remission after treatment with rituximab. Lupus 2010; 19:1243-5. [PMID: 20501524 DOI: 10.1177/0961203310367659] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Mucosa-associated lymphoid tissue (MALT) lymphoma of the lacrimal glands has been reported in only two patients with systemic lupus erythematosus (SLE) in the literature. We describe a 41-year-old female with SLE who had multiple relapses and remissions of her disease during the last 20 years and developed a right eyelid swelling. Magnetic resonance imaging showed a lesion in the right lacrimal gland with increased enhancement on T1- and T2-weighted images after intravenous contrast administration, and the biopsy of lacrimal gland was consistent with the diagnosis of marginal zone B-cell lymphoma of MALT type. The patient received treatment with four once-weekly doses of rituximab 375 mg/m(2) every 6 months for 2 years resulting in complete remission. Lacrimal gland MALT lymphoma is mainly treated with local radiotherapy, or chemotherapy in cases with systemic lymphoma. This is the first case of rituximab treatment in a patient with SLE who developed lacrimal gland MALT lymphoma, resulting in complete durable remission.
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Affiliation(s)
- M G Tektonidou
- Department of Rheumatology, Euroclinic Hospital of Athens, Athens, Greece.
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Controversies on rituximab therapy in sjögren syndrome-associated lymphoproliferation. Int J Rheumatol 2010; 2009:424935. [PMID: 20148068 PMCID: PMC2817502 DOI: 10.1155/2009/424935] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2009] [Accepted: 12/15/2009] [Indexed: 12/13/2022] Open
Abstract
Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by chronic inflammation of salivary and lachrymal glands, and frequently accompanied by systemic symptoms. A subgroup of SS patients develops malignant B cell non-Hodgkin's lymphoma (NHL), usually of the mucosa-associated lymphoid tissue (MALT) type and very often located in the major salivary glands. Currently, there is a lack of evidence-based intervention therapy which may influence SS-related chronic inflammation and lymphoproliferation. B cells are involved in the pathogenesis of SS, and B cell downregulation may lead to a decrease of disease activity. Rituximab (RTX), a chimeric monoclonal antibody targeting the CD20 antigen on the B cell surface, has been successfully investigated in other autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, ANCA-associated vasculitis, and mixed cryoglobulinemic syndrome. Preliminary experiences of RTX therapy in SS patients with or without a lymphoproliferative disorder suggest that SS patients with more residual exocrine gland function might better benefit from RTX. Efficacy of RTX in SS-associated B-cell lymphoma, mainly in low-grade salivary gland lymphomas, remains an open issue.
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Abstract
For more than 50 years, links between autoimmunity and lymphomas have been described based on human and animal studies. Over the last 3 decades, many studies have addressed specific hypotheses about these associations using population level data. This has been accomplished by assessing previous autoimmune history in case-control studies of patients with lymphoma (mainly non-Hodgkin lymphoma) and myeloma, and by following cohorts of patients with various autoimmune diseases for subsequent development of lymphoma and multiple myeloma. In this article, we review our recently published series of association studies based on data from Scandinavia and from US Veterans and other relevant findings. We also discuss what these associations have revealed about the mechanisms and pathways underlying both autoimmunity and lymphoma. Finally, we discuss the future directions involving a combination of population and molecular studies that are needed to better define underlying biological mechanisms.
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Affiliation(s)
- Lynn R Goldin
- Genetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD 20892-7236, USA.
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Illes A, Varoczy L, Papp G, Wilson PC, Alex P, Jonsson R, Kovacs T, Konttinen YT, Zeher M, Nakken B, Szodoray P. Aspects of B-cell non-Hodgkin's lymphoma development: a transition from immune-reactivity to malignancy. Scand J Immunol 2009; 69:387-400. [PMID: 19508370 DOI: 10.1111/j.1365-3083.2009.02237.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of B-cell lymphomas is an intricate interplay among various pathogenic factors, leading to a multi-step process, encompassing various stages of B-cell maturation. Besides genetic abnormalities, a variety of environmental and microbial factors, as well as disproportional immune-regulatory processes lead to the malignant transformation. Yet, little is known about the exact chain of events, which lead from the physiological polyclonal B-cell activation as a response to exogenous antigens through oligoclonality to a monoclonal, uncontrolled, malignant B-cell proliferation. The aim of the present review was to summarize the potential harmful steps in the development of B-cell lymphomas, according to conventional and novel theories, and to depict therapeutic regimens presently in use as well as to envision future drug developments, beneficial in the battle against this lymphoid malignancy.
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Affiliation(s)
- A Illes
- Division of Immune-Hematology, 3rd Department of Medicine, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary
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Sherer Y, Matthias T, Shoenfeld Y. Cutting Edge Issues in Autoimmunity. Clin Rev Allergy Immunol 2008; 34:275-8. [DOI: 10.1007/s12016-007-8047-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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