Testing for Antiphospholipid Antibody (aPL) Specificities in Retrospective "Normal" Cerebral Spinal Fluid (CSF)

Deborah Sokol, D. R. Wagenknecht, J. A. McIntyre

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Antiphospholipid antibodies (aPL) have been found in the blood of patients with systemic and neurological disease. The rare reports of aPL in cerebral spinal fluid (CSF) have been limited mostly to IgG and IgM anticardiolipin (aCL). Our published finding of IgA aPE in the CSF of a young stroke victim prompted us to establish "normal" CSF aPL values for a panel of aPL, which included aCL, antiphosphatidylserine (aPS), antiphosphatidylethanolamine (aPE) and antiphosphatidylcholine (aPC). CSF samples were tested by ELISA for IgG, IgM and IgA aPL. In addition, the CSF samples were tested for activity in the presence and absence of phospholipid (PL) binding plasma-proteins. A total of 24 data points were obtained for each CSF sample. We tested 59 CSF samples obtained from 59 patients who were undergoing evaluation for systemic or neurologic diseases. All CSF samples had normal protein, glucose and cell counts. Ten of the 59 CSF samples (17%) had elevated aPL optical density (OD) values an order of magnitude higher than the other 49 CSF samples for one or more aPL specificity and/or isotype, One CSF sample had both PL-binding protein dependent and independent IgG aPE activity. Another CSF sample showed both IgG aPE and aPC reactivity. The remaining eight CSF samples showed single aPL findings; IgG aPE (5), IgG aPC (1), IgG aCL (1) and IgM aPC (1). Seven of 10 patients with elevated CSF values were females. As expected, most "normal" aPL OD values were substantially lower in CSF than those we have reported in blood samples from volunteer blood donors.

Original languageEnglish
Pages (from-to)7-12
Number of pages6
JournalClinical and Developmental Immunology
Volume11
Issue number1
DOIs
StatePublished - Mar 2004

Fingerprint

Antiphospholipid Antibodies
Antibody Specificity
Immunoglobulin G
Immunoglobulin M
Immunoglobulin A
Phospholipids
Carrier Proteins
Nervous System Diseases
Blood Donors
Blood Proteins
Volunteers
Cell Count
Enzyme-Linked Immunosorbent Assay
Stroke
Glucose

Keywords

  • Anticardiolipin
  • Antiphosphatidylcholine
  • Antiphosphatidylethanolamine
  • Antiphosphatidylserine
  • Central nervous system

ASJC Scopus subject areas

  • Immunology
  • Cell Biology
  • Developmental Biology

Cite this

Testing for Antiphospholipid Antibody (aPL) Specificities in Retrospective "Normal" Cerebral Spinal Fluid (CSF). / Sokol, Deborah; Wagenknecht, D. R.; McIntyre, J. A.

In: Clinical and Developmental Immunology, Vol. 11, No. 1, 03.2004, p. 7-12.

Research output: Contribution to journalArticle

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