Volume 65, Issue 1 pp. 186-196
Lyme Disease

A novel human autoantigen, endothelial cell growth factor, is a target of T and B cell responses in patients with Lyme disease

Elise E. Drouin

Corresponding Author

Elise E. Drouin

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Drs. Drouin, Seward, Costello, and Steere have a patent application pending for endothelial cell growth factor antibody testing.

Massachusetts General Hospital, CNY 149/8301, 55 Fruit Street, Boston, MA 02114Search for more papers by this author
Robert J. Seward

Robert J. Seward

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Drs. Drouin, Seward, Costello, and Steere have a patent application pending for endothelial cell growth factor antibody testing.

Search for more papers by this author
Klemen Strle

Klemen Strle

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Search for more papers by this author
Gail McHugh

Gail McHugh

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Search for more papers by this author
Kianoosh Katchar

Kianoosh Katchar

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Search for more papers by this author
Diana Londoño

Diana Londoño

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Search for more papers by this author
Chunxiang Yao

Chunxiang Yao

Boston University School of Medicine, Boston, Massachusetts

Search for more papers by this author
Catherine E. Costello

Catherine E. Costello

Boston University School of Medicine, Boston, Massachusetts

Drs. Drouin, Seward, Costello, and Steere have a patent application pending for endothelial cell growth factor antibody testing.

Search for more papers by this author
Allen C. Steere

Allen C. Steere

Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts

Drs. Drouin, Seward, Costello, and Steere have a patent application pending for endothelial cell growth factor antibody testing.

Dr. Steere has received consulting fees, speaking fees, and/or honoraria from Merck and Alere (less than $10,000 each).

Search for more papers by this author
First published: 08 October 2012
Citations: 72

Dr. Steere has received consulting fees, speaking fees, and/or honoraria from Merck and Alere (less than $10,000 each).

Abstract

Objective

Autoantigen presentation by HLA–DR molecules is thought to be a central component of many autoimmune diseases, but identifying disease-relevant autoantigens has been a difficult challenge. In this study we aimed to identify autoantigens in patients with antibiotic-refractory Lyme arthritis, in which infection-induced autoimmunity is thought to play an important role.

Methods

Using tandem mass spectrometry, naturally presented HLA–DR self peptides from a patient's synovium were identified, synthesized, and reacted with his peripheral blood mononuclear cells (PBMCs). Immunoreactive peptides and their source proteins were then tested for T and B cell responses using large numbers of patient cells or sera.

Results

Of 120 HLA–DR–presented self peptides identified from one patient, one peptide derived from endothelial cell growth factor (ECGF) caused his PBMCs to proliferate. T and B cell responses to ECGF occurred systemically in ∼10–30% of patients with early or late manifestations of Lyme disease, primarily in those with refractory arthritis–associated HLA–DR alleles, such as DRB1*0101 and 0401. Compared with patients with antibiotic-responsive arthritis, those with antibiotic-refractory arthritis had significantly higher concentrations of ECGF in synovial fluid (P < 0.0001) and more often had ECGF antibody reactivity. Among non–antibiotic-treated historical patients who developed arthritis, 26% had ECGF reactivity, which often developed before the onset of arthritis and was associated with significantly longer courses of arthritis.

Conclusion

T and B cell responses to ECGF occur in a subset of patients with Lyme disease, particularly in those with antibiotic-refractory arthritis, providing the first direct evidence of autoimmune T and B cell responses in this illness.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.

click me