PREFERENTIAL UTILIZATION OF A NOVEL V-LAMBDA-3 GENE IN MONOCLONAL RHEUMATOID FACTORS DERIVED FROM THE SYNOVIAL-CELLS OF RHEUMATOID-ARTHRITIS PATIENTS

被引:25
作者
ERMEL, RW
KENNY, TP
WONG, A
SOLOMON, A
CHEN, PP
ROBBINS, DL
机构
[1] LAWRENCE LIVERMORE NATL LAB, SCH MED, DIV RHEUMATOL ALLERGY & CLIN IMMUNOL, DAVIS, CA 95616 USA
[2] UNIV TENNESSEE, MED CTR, KNOXVILLE, TN USA
来源
ARTHRITIS AND RHEUMATISM | 1994年 / 37卷 / 06期
关键词
D O I
10.1002/art.1780370614
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective. To further our understanding about the molecular genetics of rheuma Methods. The heavy and light chain variable region (V) genes of 5 new human monoclonal IgM RFs were cloned and sequenced using the polymerase chain reaction and the dideoxynucleotide termination method. Results. The results reveal the recurrent usage in two RA patients of a novel V lambda 3 germline gene, designated Humlv3c93. Specifically, in 2 of 3 RFs (C93 and D53) from one patient, the light chains in the V lambda gene-encoded region were identical to each other and to the light chain of an RF (H4) from another patient. Serologically, the light chains of these 3 RFs were classified as members of the V lambda 3b sub-subgroup. Each of the RFs was encoded by a different VH gene. Both C93 and D53 bound specifically with human and rabbit IgG, whereas H4 was monospecific for rabbit IgG. Conclusion. Since the lv3c93 gene is not homologous to any reported V lambda sequence from natural autoantibodies, it is possible that lv3c93 may represent a disease-specific RE-related V lambda gene. Moreover, the amino acid sequence CSGGSCY in the third complementarity-determining regions of 2 of the RF heavy chains is encoded by the DLR2 gene segment and has been found
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页码:860 / 868
页数:9
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