RGD Reference Report - Increased salivary gland tissue expression of Fas, Fas ligand, cytotoxic T lymphocyte-associated antigen 4, and programmed cell death 1 in primary Sjogren's syndrome. - Rat Genome Database

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Increased salivary gland tissue expression of Fas, Fas ligand, cytotoxic T lymphocyte-associated antigen 4, and programmed cell death 1 in primary Sjogren's syndrome.

Authors: Bolstad, AI  Eiken, HG  Rosenlund, B  Alarcon-Riquelme, ME  Jonsson, R 
Citation: Bolstad AI, etal., Arthritis Rheum. 2003 Jan;48(1):174-85.
RGD ID: 7421519
Pubmed: PMID:12528117   (View Abstract at PubMed)
DOI: DOI:10.1002/art.10734   (Journal Full-text)

OBJECTIVE: To assess salivary gland tissues obtained from patients with primary Sjogren's syndrome (SS) for the gene expression profile of the candidate genes TNFRSF6 (Fas), TNFSF6 (FasL), SSA1 (Ro52 alpha and the splice variant Ro52 beta), SSB (La), CTLA4, PDCD1 (PD-1), and ORM2, which were selected on the basis of their putative participation in salivary gland inflammation. METHODS: Quantitative real-time reverse transcriptase-polymerase chain reaction (RT-PCR) was used to examine the expression of messenger RNA (mRNA). Tissue localization of the expressed proteins was detected by immunohistochemistry. RESULTS: Expression of mRNA was increased for Fas (5.1-fold; P < 0.001), FasL (8.8-fold; P < 0.05), cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) (11.2-fold; P < 0.01), programmed cell death 1 (PD-1) (15.2-fold; P < 0.05), Ro52 alpha (3.0-fold; P < 0.01), La (2.3-fold; P < 0.05), and orosomucoid 2 (ORM2) (4.4-fold; P < 0.05) in patients compared with controls when GAPDH was used as endogenous standard in duplex runs. In single runs using 2 other endogenous standards (18S and beta-actin), statistically significant differences between patients and controls were confirmed for expression of Fas, FasL, CTLA-4, and PD-1, but this difference was not observed for Ro52 alpha, La, and ORM2. Expression of Ro52 beta mRNA was similar in patients and controls. CONCLUSION: The present study demonstrates a substantial increase in expression of the negative regulator molecules PD-1 and CTLA-4 and the apoptotic signal molecules Fas and FasL in patients with primary SS compared with controls, which corresponded to the immunomorphologic pattern. The results strongly indicate that these molecules have central roles in the inflammatory process in the salivary glands of patients with primary SS.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Sjogren's syndrome  IEP 7421519mRNA:increased expression:salivary gland:RGD 
Sjogren's syndrome  ISOCTLA4 (Homo sapiens)7421519; 7421519mRNA:increased expression:salivary gland:RGD 

Objects Annotated

Genes (Rattus norvegicus)
Ctla4  (cytotoxic T-lymphocyte-associated protein 4)

Genes (Mus musculus)
Ctla4  (cytotoxic T-lymphocyte-associated protein 4)

Genes (Homo sapiens)
CTLA4  (cytotoxic T-lymphocyte associated protein 4)


Additional Information