Persistent high levels of IgM antiphospholipid antibodies in a patient with recurrent pregnancy losses and rheumatoid arthritis

Kuniaki Ota, Svetlana Dambaeva, Jennifer Lee, Alice Gilman-Sachs, Kenneth Beaman, Joanne Kwak-Kim

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objective: Recurrent pregnancy losses (RPL) and unexplained infertility (UI) are often associated with the presence of antiphospholipid antibodies (APA). We report one case with RPL, UI, and persistent IgM APA without B-cell isotype switch. Method of study: (i) A case report of a woman with RPL and UI who eventually developed rheumatoid arthritis and B-cell phenotype study of the case and controls by flow cytometric analysis; (ii) a retrospective cohort study of 1067 subjects with APA test. Results: A 44-year-old woman with a history of RPL and UI was revealed to have high levels of APA, primarily of IgM isotype: IgM autoantibodies were specific to cardiolipin, phosphatidylglycerol, phosphatidylserine, and phosphatidylinositol. The monitoring of the patient's serological characteristics for 28 months did not reveal the development of IgG APA. B-cell phenotype analysis revealed decreased switched and double negative memory B cells and increased non-switched memory B cells in comparison with normal controls and reported ranges. A retrospective analysis of APA test revealed that total five patients (5/1067, 0.47%) with similar persistent IgM-only pattern were detected. Conclusion: Persistent IgM APA without isotype switch may be a rare variant form of APA manifestation, which is associated with dysregulated B-cell subsets.

Original languageEnglish
Pages (from-to)286-292
Number of pages7
JournalAmerican Journal of Reproductive Immunology
Volume71
Issue number3
DOIs
Publication statusPublished - 2014 Mar

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Antiphospholipid Antibodies
Immunoglobulin M
Rheumatoid Arthritis
Pregnancy
B-Lymphocytes
Infertility
B-Lymphocyte Subsets
Phenotype
Reproductive History
Phosphatidylglycerols
Cardiolipins
Phosphatidylserines
Physiologic Monitoring
Phosphatidylinositols
Autoantibodies
Case-Control Studies
Cohort Studies
Retrospective Studies
Immunoglobulin G

Keywords

  • Antiphospholipid antibodies
  • IgM
  • Memory B cell
  • Recurrent pregnancy losses
  • Rheumatoid arthritis

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy
  • Obstetrics and Gynaecology
  • Reproductive Medicine

Cite this

Persistent high levels of IgM antiphospholipid antibodies in a patient with recurrent pregnancy losses and rheumatoid arthritis. / Ota, Kuniaki; Dambaeva, Svetlana; Lee, Jennifer; Gilman-Sachs, Alice; Beaman, Kenneth; Kwak-Kim, Joanne.

In: American Journal of Reproductive Immunology, Vol. 71, No. 3, 03.2014, p. 286-292.

Research output: Contribution to journalArticle

Ota, Kuniaki ; Dambaeva, Svetlana ; Lee, Jennifer ; Gilman-Sachs, Alice ; Beaman, Kenneth ; Kwak-Kim, Joanne. / Persistent high levels of IgM antiphospholipid antibodies in a patient with recurrent pregnancy losses and rheumatoid arthritis. In: American Journal of Reproductive Immunology. 2014 ; Vol. 71, No. 3. pp. 286-292.
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