Linked Life Data

9802926

Source:http://linkedlifedata.com/resource/pubmed/id/9802926

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1999-1-25
pubmed:abstractText
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by the production of large amounts of characteristic autoantibodies. Anti-Sm and anti-nRNP (also known as anti-spliceosome) autoantibodies are among these. Previous epitope mapping of anti-spliceosomal antibodies has identified multiple antigenic determinants within this complex immune response. In this report we describe an SLE patient with a relatively simple, long-lasting anti-spliceosomal response. In the earliest serum sample tested the autoimmune response appeared restricted to the similar peptides PPPGMR(P,G)P of Sm B/B', PAPGMRPP of nRNP C, and PPPGMIPP of nRNP A. Unlike all the other tested lupus patients with anti-spliceosomal autoantibodies, in this patient these proline-rich epitopes remained the primary target for humoral autoimmunity in subsequent serum samples collected over many years. Absorption of anti-PAPGMRPP antibodies also removed binding to PPPGMR(P,G)P and PPPGMIPP. Isolated antibodies to PAPGMRPP were capable of binding Sm B/B', nRNP C and nRNP A by Western blot. For this particular SLE patient the autoimmune response observed against these three proteins is a single cross-reactive response against a similar proline-rich motif. Also, this patient has failed to undergo the B cell epitope spreading, typically observed in the naturally arising autoimmune response against the spliceosome in human lupus patients.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0896-8411
pubmed:author
pubmed:copyrightInfo
Copyright 1998 Academic Press.
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
431-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
A limited lupus anti-spliceosomal response targets a cross-reactive, proline-rich motif.
pubmed:affiliation
Arthritis and Immunology Program, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, 73104, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Case Reports