1
|
Gao X, Xiao G, Yang F, Dou R, Xue M, Zhang Y, Zheng Z, Ding J. Laboratory risk factors for coexistent primary biliary cholangitis in patients with Sjögren's syndrome: a retrospective study. BMC Gastroenterol 2023; 23:220. [PMID: 37365494 DOI: 10.1186/s12876-023-02859-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023] Open
Abstract
BACKGROUND Limited research exists on the laboratory characteristics of coexistent primary biliary cholangitis (PBC) and Sjögren's syndrome (SS). This study aimed to investigate the laboratory risk factors for the coexistence of PBC in patients with SS. METHODS Eighty-two patients with coexistent SS and PBC (median age 52.50 years) and 82 age- and sex-matched SS controls were retrospectively enrolled between July 2015 and July 2021. The clinical and laboratory characteristics of the two groups were compared. Laboratory risk factors for the coexistence of PBC in patients with SS were analyzed using logistic regression analysis. RESULTS Both groups had a similar prevalence of hypertension, diabetes, thyroid disease, and interstitial lung disease. Compared with the SS group, patients in the SS + PBC group had higher levels of liver enzymes, immunoglobulins M (IgM), G2, and G3 (P < 0.05). The percentage of patients with an antinuclear antibody (ANA) titre > 1:10000 in the SS + PBC group was 56.1%, higher than that in the SS group (19.5%, P < 0.05). Additionally, cytoplasmic, centromeric, and nuclear membranous patterns of ANA and positive anti-centromere antibody (ACA) were observed more frequently in the SS + PBC group (P < 0.05). Logistic regression analysis showed that elevated IgM levels, high ANA titre, cytoplasmic pattern, and ACA were independent risk factors for PBC coexistence in SS. CONCLUSIONS In addition to established risk factors, elevated IgM levels, positive ACA, and high ANA titre with cytoplasmic pattern provide clues to clinicians for the early screening and diagnosis of PBC in patients with SS.
Collapse
Affiliation(s)
- Xuan Gao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Guangzhi Xiao
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Fengfan Yang
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Rongrong Dou
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Miao Xue
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Yingying Zhang
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Zhaohui Zheng
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China
| | - Jin Ding
- Department of Clinical Immunology, Xijing Hospital, Fourth Military Medical University, No. 127 Changle West Rd., Xi'an, 710032, Shaanxi, China.
| |
Collapse
|
2
|
Zeng Y, Zhang Y, Chen Q, Huang Q, Lin Y, Wang X, Wang JJ, Jiang L, Xiao Y. Distribution of IgG subclass anti-nuclear antibodies (ANAs) in systemic lupus erythematosus. Lupus 2021; 30:901-912. [PMID: 33622075 DOI: 10.1177/0961203321995242] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVES Our study purpose was to detect the distribution of anti-nuclear antibody (ANA) IgG subclasses in patients with systemic lupus erythematosus (SLE) and to evaluate their influence on the inflammatory process in SLE. METHODS We determined the serum levels of ANA IgG subclasses from 70 SLE patients, 25 patients with other autoimmune diseases (OAD), and 25 healthy controls using ELISA. The serum level of total ANA IgG and the avidity of ANA IgG, dsDNA IgG, and dsDNA IgG subclasses were analysed by ELISA. RESULTS The results indicated that levels of four ANA IgG subclasses (IgG1, IgG2, IgG3 and IgG4) and total IgG were significantly higher in SLE patients than in OAD patients and healthy controls (p < 0.001). Moreover, the level of each ANA IgG subclass and the prevalence of high-avidity IgG ANAs (HA IgG ANAs) were significantly higher in the active cases than in the inactive cases of SLE and LN. Furthermore, level of ANA IgG subclasses decreased as level of dsDNA IgG subclasses decreased in 30 patients with SLE. In comparison, ANA IgG3 was significantly effective in high-dose prednisone combined with hydroxychloroquine (p = 0.025). Additionally, it revealed that level of dsDNA IgG had a significant influence on four ANA IgG subclasses, especially on ANA IgG3 (β coefficient = 0.649, p < 0.001). Level of ANA IgG3 was also positively related to the serum level of dsDNA IgG (r = 0.729, p < 0.001) and RAI of HA IgG ANAs (r = 0.504, p < 0.001). However, the level of ANA IgG4 was positively related to the serum level of albumin (r = 0.572, p < 0.001) and RAI of HA IgG ANAs (r = 0.549, p < 0.001). Moreover, the results revealed that cutaneous and renal involvement were mainly associated with the ANA IgG1 and IgG4 subclasses. Although, arthritic involvement was mainly associated with ANA IgG3. CONCLUSIONS First, we demonstrated that the ANA IgG subclasses were diagnostic tools in SLE patients. Furthermore, HA IgG ANAs might affect the distribution of ANA IgG3 and IgG4. Moreover, ANA IgG3 might play a particular role in the activity of SLE disease and therapy. Therefore, an altered ANA IgG subclass distribution might be a risk factor influencing the inflammatory process in SLE.
Collapse
Affiliation(s)
- Yanli Zeng
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yan Zhang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Qinggui Chen
- Department of General Surgery, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Qinghe Huang
- Department of Intensive Care Unit, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Yiqiang Lin
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Xuelian Wang
- Department of Obstetrics and Gynecology, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Jia Jia Wang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Longcan Jiang
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Yun Xiao
- Center of Clinical Laboratory, Zhongshan Hospital, School of Medicine, Xiamen University, Xiamen, China
| |
Collapse
|
3
|
Sharma A, Kiripolsky J, Klimatcheva E, Howell A, Fereidouni F, Levenson R, Rothstein TL, Kramer JM. Early BAFF receptor blockade mitigates murine Sjögren's syndrome: Concomitant targeting of CXCL13 and the BAFF receptor prevents salivary hypofunction. Clin Immunol 2016; 164:85-94. [PMID: 26826598 DOI: 10.1016/j.clim.2016.01.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 01/23/2016] [Accepted: 01/25/2016] [Indexed: 12/28/2022]
Abstract
Sjögren's syndrome (SS) is a debilitating autoimmune disease. Patients with SS may develop xerostomia. This process is progressive, and there are no therapeutics that target disease etiology. We hypothesized BAFF receptor (BAFFR) blockade would mitigate SS disease development, and neutralization of CXCL13 and BAFF signaling would be more efficacious than BAFFR blockade alone. We treated NOD/ShiLtJ SS mice with soluble BAFF receptor (BAFFR-Fc) or anti-CXCL13/BAFFR-Fc in combination, prior to the development of clinical disease. Our results show treatment with BAFFR-Fc reduced peripheral B cell numbers and decreased sialadenitis. In addition, this treatment reduced total serum immunoglobulin as well as IgG and IgM specific anti-nuclear autoantibodies. NOD/ShiLtJ mice treated with BAFFR-Fc and anti-CXCL13 antibody were protected from salivary deficits. Results from this study suggest blockade of CXCL13 and BAFFR together may be an effective therapeutic strategy in preventing salivary hypofunction and reducing autoantibody titers and sialadenitis in patients with SS.
Collapse
Affiliation(s)
- Arjun Sharma
- Department of Oral Biology, School of Dental Medicine, University of Buffalo, The State University of New York, Buffalo, NY USA 14214
| | - Jeremy Kiripolsky
- Department of Oral Biology, School of Dental Medicine, University of Buffalo, The State University of New York, Buffalo, NY USA 14214
| | | | | | - Farzad Fereidouni
- Department of Pathology and Laboratory Medicine, UC Davis Medical Center, Sacramento, CA 95817
| | - Richard Levenson
- Department of Pathology and Laboratory Medicine, UC Davis Medical Center, Sacramento, CA 95817
| | - Thomas L Rothstein
- Center for Oncology and Cell Biology, The Feinstein Institute for Medical Research, Manhasset, NY 11030.,Department of Molecular Medicine, School of Medicine, Manhasset, NY 11030.,Department of Medicine, Hofstra North Shore-LIJ, School of Medicine, Manhasset, NY 11030
| | - Jill M Kramer
- Department of Oral Biology, School of Dental Medicine, University of Buffalo, The State University of New York, Buffalo, NY USA 14214.,Center for Oncology and Cell Biology, The Feinstein Institute for Medical Research, Manhasset, NY 11030.,Department of Molecular Medicine, School of Medicine, Manhasset, NY 11030.,Department of Dental Medicine, Division of Oral and Maxillofacial Pathology, North Shore-LIJ Health System, Manhasset, NY 11030
| |
Collapse
|
4
|
Kiyama K, Yoshifuji H, Kandou T, Hosono Y, Kitagori K, Nakashima R, Imura Y, Yukawa N, Ohmura K, Fujii T, Kawabata D, Mimori T. Screening for IgG4-type anti-nuclear antibodies in IgG4-related disease. BMC Musculoskelet Disord 2015; 16:129. [PMID: 26018403 PMCID: PMC4447006 DOI: 10.1186/s12891-015-0584-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 05/18/2015] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Immunoglobulin (Ig) G4-related disease (IgG4-RD) is characterized by elevated serum IgG4 and infiltration of IgG4(+) plasma cells into multiple organs. It is not known whether serum IgG4 is autoreactive in IgG4-RD. METHODS We measured anti-nuclear antibody (ANA) in 19 IgG4-RD cases, determined IgG subclasses of the ANA, and compared them with those of other systemic autoimmune diseases (systemic lupus erythematosus, Sjögren's syndrome, systemic sclerosis, and polymyositis), using subclass-based ANA test (indirect immunofluorescence). RESULTS 58 % of IgG4-RD cases were ANA-positive (cut-off: 1:40). Whereas their subclass of ANA was predominantly IgG2, we observed no IgG4-type ANA. In systemic autoimmune diseases, subclasses of ANA were mostly IgG1, 2, or 3, but IgG4-type ANA was very rarely detected. We also found several patients in whose serum ANA patterns differed among IgG subclasses, probably due to the difference of corresponding autoantigens. CONCLUSIONS Although IgG4 is highly elevated in sera of IgG4-RD patients, their ANA do not include IgG4 subclass. These results offer new insight into the role of IgG4 and the pathogenesis of IgG4-RD, implying that each IgG subclass tends to cover its own spectrum of antigens, and IgG4 is not preferentially used to make ANA.
Collapse
Affiliation(s)
- Kazuhiro Kiyama
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Hajime Yoshifuji
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Tsugumitsu Kandou
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yuji Hosono
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Koji Kitagori
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Ran Nakashima
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yoshitaka Imura
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Naoichiro Yukawa
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Koichiro Ohmura
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Takao Fujii
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Daisuke Kawabata
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Tsuneyo Mimori
- Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto, 606-8507, Japan.
| |
Collapse
|
5
|
Liu Y, Li J. Preferentially immunoglobulin (IgG) subclasses production in primary Sjögren's syndrome patients. Clin Chem Lab Med 2011; 50:345-349. [PMID: 22035142 DOI: 10.1515/cclm.2011.771] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Patients with primary Sjögren's syndrome (pSS) mostly have high levels of polyclonal immunoglobulin (IgG) and selective increase of IgG subclasses. As IgG subclasses profiles represent specific immunological processes and may be indicative of the underlying pathological pattern in pSS, it would be of great clinical importance to investigate the distribution of IgG subclasses in pSS patients. Methods: In archived sera from 155 patients with pSS, 50 patients with systemic lupus erythematosus (SLE) and 50 normal controls were analyzed by immunonephelometric assay. Results: The median levels of IgG1, IgG2, IgG3 and IgG4 in pSS patients were 11300 mg/L, 6130 mg/L, 961 mg/L and 142 mg/L, respectively. When compared with the normal controls, significant increases of IgG1 (p<0.001), IgG2 (p<0.001) and IgG3 (p<0.001) was observed in pSS patients, while the IgG4 level was significantly decreased (p=0.002). The ratio of IgG1/IgG2 in pSS patients was 2.3±1.4, which was significantly higher than that in the normal controls (p<0.001). When the pSS patients were divided into different groups, a higher level of IgG3 was observed in pSS with systematic disorders (p=0.008). In addition, the level of IgG1 was statistically higher in the anti-Ro or anti-La positive group than that in the negative group (p<0.001), but the IgG4 concentration was lower than that in the negative group (p=0.046). A significant positive correlation between the concentration of IgG3 and the disease duration (p<0.001) was also identified. Conclusions: The data supported the pathogenic role of IgG1 and IgG3 subclasses in the process of pSS. Further investigations to elucidate the reasons for the increase of IgG2 and whether IgG2 has any contribution to the pathogenesis of pSS are needed.
Collapse
Affiliation(s)
- Yudong Liu
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, PR China
| | | |
Collapse
|
6
|
Nguyen CQ, Cornelius JG, Cooper L, Neff J, Tao J, Lee BH, Peck AB. Identification of possible candidate genes regulating Sjögren's syndrome-associated autoimmunity: a potential role for TNFSF4 in autoimmune exocrinopathy. Arthritis Res Ther 2008; 10:R137. [PMID: 19032782 PMCID: PMC2656241 DOI: 10.1186/ar2560] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Revised: 10/27/2008] [Accepted: 11/25/2008] [Indexed: 12/11/2022] Open
Abstract
Introduction Sjögren syndrome (SjS) is a systemic autoimmune disease in which an immunological attack primarily against the salivary and lacrimal glands results in the loss of acinar cell tissue and function, leading to stomatitis sicca and keratoconjunctivitis sicca. In recent years, two genetic regions, one on chromosome 1 (designated autoimmune exocrinopathy 2 or Aec2) and the second on chromosome 3 (designated autoimmune exocrinopathy 1 or Aec1) derived from nonobese diabetic (NOD) mice, have been shown to be necessary and sufficient to replicate SjS-like disease in nonsusceptible C57BL/6 mice. Methods Starting with the SjS-susceptible C57BL/6-derived mouse, referred to as C57BL/6.NOD-Aec1Aec2, we generated a large set of recombinant inbred (RI) lines containing portions of Aec2 as a means of identifying more precisely the genetic elements of chromosome 1 responsible for disease development. Results Disease profiling of these RI lines has revealed that the SjS susceptibility genes of Aec2 lie within a region located at approximately 79 ± 5 cM distal to the centromere, as defined by microsatellite markers. This chromosomal region contains several sets of genes known to correlate with various immunopathological features of SjS as well as disease susceptibility genes for both type 1 diabetes and systemic lupus erythematosus in mice. One gene in particular, tumor necrosis factor (ligand) superfamily member 4 (or Ox40 ligand), encoding a product whose biological functions correlate with both physiological homeostasis and immune regulations, could be a potential candidate SjS susceptibility gene. Conclusions These new RI lines represent the first step not only in fine mapping SjS susceptibility loci but also in identifying potential candidate SjS susceptibility genes. Identification of possible candidate genes permits construction of models describing underlying molecular pathogenic mechanisms in this model of SjS and establishes a basis for construction of specific gene knockout mice.
Collapse
Affiliation(s)
- Cuong Q Nguyen
- Department of Oral Biology, University of Florida, Gainesville, FL 32610, USA.
| | | | | | | | | | | | | |
Collapse
|
7
|
Nguyen CQ, Kim H, Cornelius JG, Peck AB. Development of Sjogren's syndrome in nonobese diabetic-derived autoimmune-prone C57BL/6.NOD-Aec1Aec2 mice is dependent on complement component-3. THE JOURNAL OF IMMUNOLOGY 2007; 179:2318-29. [PMID: 17675493 PMCID: PMC2850056 DOI: 10.4049/jimmunol.179.4.2318] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The role of complement in the etiology of Sjögren's syndrome (SjS), a human autoimmune disease manifested primarily by salivary and lacrimal gland dysfunction resulting in dry mouth/dry eye syndrome, remains ill-defined. In the present study, we examined the role of complement component-3 (C3) using a newly constructed C3-gene knockout mouse, C57BL/6.NOD-Aec1Aec2.C3(-/-). Inactivation of C3 in the parental C57BL/6.NOD-Aec1Aec2 strain, a model of primary SjS, resulted in a diminished or total absence of both preclinical and clinical manifestations during development and onset of disease, including reduced acinar cell apoptosis, reduced levels of caspase-3, lack of leukocyte infiltration of submandibular glands, reduced synthesis of disease-associated autoantibodies, maintenance of normal glandular architecture, and retention of normal saliva secretion. In addition, C57BL/6-NOD.Aec1Aec2.C3(-/-) mice did not exhibit increased numbers of marginal zone B cells, a feature of SjS-prone C57BL/6-NOD.Aec1Aec2 mice. Interestingly, C57BL/6-NOD.Aec1Aec2.C3(-/-) mice retained some early pathological manifestations, including activation of serine kinases with proteolytic activity for parotid secretory protein. This improvement in the clinical manifestations of SjS-like disease in C57BL/6.NOD-Aec1Aec2.C3(-/-) mice, apparently a direct consequence of C3 deficiency, supports a much more important role for complement in the adaptive autoimmune response than previously recognized, possibly implicating an essential role for innate immunity.
Collapse
Affiliation(s)
- Cuong Q Nguyen
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA.
| | | | | | | |
Collapse
|
8
|
Nguyen CQ, Gao JH, Kim H, Saban DR, Cornelius JG, Peck AB. IL-4-STAT6 signal transduction-dependent induction of the clinical phase of Sjögren's syndrome-like disease of the nonobese diabetic mouse. THE JOURNAL OF IMMUNOLOGY 2007; 179:382-90. [PMID: 17579059 PMCID: PMC2856075 DOI: 10.4049/jimmunol.179.1.382] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
NOD.B10-H2(b) and NOD/LtJ mice manifest, respectively, many features of primary and secondary Sjögren's syndrome (SjS), an autoimmune disease affecting primarily the salivary and lacrimal glands leading to xerostomia (dry mouth) and xerophthalmia (dry eyes). B lymphocytes play a central role in the onset of SjS with clinical manifestations dependent on the appearance of autoantibodies reactive to multiple components of acinar cells. Previous studies with NOD.IL4(-/-) and NOD.B10-H2(b).IL4(-/-) mice suggest that the Th2 cytokine, IL-4, plays a vital role in the development and onset of SjS-like disease in the NOD mouse model. To investigate the molecular mechanisms by which IL-4 controls SjS development, a Stat6 gene knockout mouse, NOD.B10-H2(b).C-Stat6(-/-), was constructed and its disease profile was defined and compared with that of NOD.B10-H2(b).C-Stat6(+/+) mice. As the NOD.B10-H2(b).C-Stat6(-/-) mice aged from 4 to 24 wk, they exhibited leukocyte infiltration of the exocrine glands, produced anti-nuclear autoantibodies, and showed loss and gain of saliva-associated proteolytic enzymes, similar to NOD.B10-H2(b).C-Stat6(+/+) mice. In contrast, NOD.B10-H2(b).C-Stat6(-/-) mice failed to develop glandular dysfunction, maintaining normal saliva flow rates. NOD.B10-H2(b).C-Stat6(-/-) mice were found to lack IgG1 isotype-specific anti-muscarinic acetylcholine type-3 receptor autoantibodies. Furthermore, the IgG fractions from NOD.B10-H2(b).C-Stat6(-/-) sera were unable to induce glandular dysfunction when injected into naive recipient C57BL/6 mice. NOD.B10-H2(b).C-Stat6(-/-) mice, like NOD.B10-H2(b).IL4(-/-) mice, are unable to synthesize IgG1 Abs, an observation that correlates with an inability to develop end-stage clinical SjS-like disease. These data imply a requirement for the IL-4/STAT6-pathway for onset of the clinical phase of SjS-like disease in the NOD mouse model.
Collapse
Affiliation(s)
- Cuong Q Nguyen
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA.
| | | | | | | | | | | |
Collapse
|
9
|
Nguyen C, Singson E, Kim JY, Cornelius JG, Attia R, Doyle ME, Bulosan M, Cha S, Peck AB. Sjögren's syndrome-like disease of C57BL/6.NOD-Aec1 Aec2 mice: gender differences in keratoconjunctivitis sicca defined by a cross-over in the chromosome 3 Aec1 locus. Scand J Immunol 2006; 64:295-307. [PMID: 16918699 DOI: 10.1111/j.1365-3083.2006.01828.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sjögren's syndrome (SjS) is a systemic autoimmune disease in which an immunological attack primarily against the salivary and lacrimal glands results in loss of acinar cell tissue and function leading to stomatitis sicca and keratoconjunctivitis sicca. In recent years, the NOD mouse has become an accepted model of SjS, exhibiting a spontaneously developing disease that strongly mimics the human condition. Two genetic regions, one on chromosome 1 (designated Aec2) and the second on chromosome 3 (designated Aec1) of NOD mice, have been shown to be necessary and sufficient to recapitulate SjS-like disease in non-susceptible C57BL/6 mice. Here we describe a newly derived strain, C57BL/6.NOD-Aec1R1Aec2, in which a recombination in Aec1 has resulted in reducing this genetic region to less than 20 cM from 48.5 cM. Profiling of this recombinant inbred strain has revealed that male mice maintain a full SjS-like disease, whereas female mice exhibit stomatitis sicca in the absence of detectable keratoconjunctivitis sicca. These data suggest SjS-like disease in the NOD mouse shows gender-specific regulation determined by autosomal genes.
Collapse
Affiliation(s)
- C Nguyen
- Department of Oral Biology, College of Dentistry, University of Florida, Gainesville, FL 32610, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
Maran R, Dueymes M, Adler Y, Shoenfeld Y, Youinou P. Isotypic distribution of anti-pyruvate dehydrogenase antibodies in patients with primary biliary cirrhosis and their family members. J Clin Immunol 1994; 14:323-6. [PMID: 7814462 DOI: 10.1007/bf01540986] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
IgG subclasses of anti-pyruvate dehydrogenase (PDH) antibodies were determined in 72 patients with primary biliary cirrhosis. All isotypes were detected, but IgG3, IgG1, and IgG2 predominated independently or in association. An average of 33.3 +/- 19.1% of the anti-PDH IgG was IgG1 (mean optical density, 0.863 +/- 0.783, vs 0.053 +/- 0.038 in the normal controls), 25.0 +/- 17.8 IgG2 (0.652 +/- 0.656 vs 0.062 +/- 0.030), 39.5 +/- 23.4% IgG3 (1.140 +/- 0.917 vs 0.010 +/- 0.023), and 2.4 +/- 7.4% IgG4 (0.060 +/- 0.182 vs 0.012 +/- 0.007). Anti-PDH IgG were restricted to IgG1 in the family members of patients (0.180 +/- 0.403).
Collapse
Affiliation(s)
- R Maran
- Department of Medicine B, Chaïm Sheba Medical Center, Tel-Hashomer, Israel
| | | | | | | | | |
Collapse
|
11
|
Youinou P, Adler Y, Muller S, Lamour A, Baron D, Humbel RL. Anti-Ro(SSA) and anti-La(SSB) antibodies in autoimmune rheumatic diseases. CLINICAL REVIEWS IN ALLERGY 1994; 12:253-74. [PMID: 7804958 DOI: 10.1007/bf02802321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- P Youinou
- Laboratory of Immunology, Brest University Medical School, France
| | | | | | | | | | | |
Collapse
|