All polymorphisms studied in this paper [PMID: 17597384] , total : 6 polymorphisms

Title : Polymorphisms of genes for programmed cell death 1 ligands in patients with rheumatoid arthritis.

Abstract : To investigate the role of ligands for programmed cell death 1 (PD-L) in the pathogenesis of rheumatoid arthritis (RA), 129 patients with RA and 125 unrelated healthy controls were enrolled in this study. The PD-L1 and PD-L2 polymorphisms were determined by the method of polymerase chain reaction (PCR)/direct sequencing or PCR/reaction fragment length polymorphisms. The genotype distributions of PD-L1 6777 C/G were not significantly different between the patients with RA and healthy controls. There was also no significant difference in the allele frequencies of PD-L1 6777 C/G polymorphisms between the patients with RA and controls. Similar findings could also be found in the phenotypes and alleles frequencies of PD-L2 47103 C/T and 47139 T/C polymorphisms between the patients with RA and controls. The patients with PD-L1 6777 G had higher prevalence of rheumatoid nodule in comparison with those without PD-L1 6777 G (p = 0.005, OR = 4.0, 95% CI = 1.5-10.9). In contrast, the PD-L2 47103 C/T and 47139 T/C polymorphisms were not related to the occurrence of rheumatoid nodule. This study demonstrated that the PD-L1 and PD-L2 polymorphisms were not associated with susceptibility to RA in Taiwan. PD-L1 6777 G was associated with the prevalence of rheumatoid nodule.

Author : Wang SC,Lin CH,Li RN,Ou TT,Wu CC,Tsai WC,Liu HW,Yen JH,

Source : J Clin Immunol. 2007 Nov;27(6):563-7. Epub 2007 Jun 28.

No.	Polymorphism name	Gene Symbol	Entrez Gene ID
1	rs12551333	CD274	29126
2	rs4278201	CD274	29126
3	rs17718883	CD274	29126
4	rs12339171	PDCD1LG2	80380
5	rs7854303	PDCD1LG2	80380
6	rs7854413	PDCD1LG2	80380