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Messenger ribonucleic acid expression profile in peripheral blood cells from RA patients following treatment with an anti-TNF-alpha monoclonal antibody, infliximab.
Rheumatology (Oxford). 2008 Jun; 47(6):780-8.R

Abstract

OBJECTIVES

We monitored the mRNA expression profiles of peripheral blood cells during treatment with a TNF-alpha inhibitor, infliximab, in patients with RA. Using a DNA microarray analysis, we demonstrated a unique set of genes, with distinct baseline and post-treatment changes in expression between responders and non-responders to infliximab treatment.

METHODS

Using a customized low-density cDNA microarray with 747 genes and a reliable data collection system, we monitored the mRNA expression profiles of whole blood cells from 18 RA patients before and after the infusion of infliximab for up to 22 weeks. The clinical response to treatment with infliximab was determined using the ACR response criteria, the disease activity score of 28 joints (DAS28), and individual clinical parameters. The patients were classified as responders or non-responders based on their ACR50% response at 22 weeks.

RESULTS

Approximately 15% of the total genes were found to exhibit a >1.5-fold change, compared with their reference values, at one or more time points during the 22 weeks of infliximab therapy. The expression of inflammatory genes, such as IFN-related genes, was strongly correlated with the serum level of CRP and the DAS28. The increased expression of inflammatory genes in responders was normalized within 2 weeks and then remained at a normal level during the treatment period. In contrast, in the non-responders, the elevated expression at baseline, although it was significantly decreased at 2 weeks, returned to the baseline level after 14 weeks. In addition to inflammatory genes, we identified several groups of genes with distinct differences in expression between the responders and non-responders.

CONCLUSIONS

Our results suggest that a customized low-density microarray is useful for monitoring mRNA expression profiles in peripheral blood cells, enabling us to identify a unique set of genes with differentially regulated expressions in responders and non-responders to a TNF inhibitor among patients with RA.

Authors+Show Affiliations

Division of Rheumatology/Clinical Immunology, Department of Internal Medicine, Saitama Medical Center, Saitama Medical University, 1981 Tsujido-machi, Kamoda, Kawagoe-shi, Saitama 350-8550, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18388148

Citation

Sekiguchi, N, et al. "Messenger Ribonucleic Acid Expression Profile in Peripheral Blood Cells From RA Patients Following Treatment With an anti-TNF-alpha Monoclonal Antibody, Infliximab." Rheumatology (Oxford, England), vol. 47, no. 6, 2008, pp. 780-8.
Sekiguchi N, Kawauchi S, Furuya T, et al. Messenger ribonucleic acid expression profile in peripheral blood cells from RA patients following treatment with an anti-TNF-alpha monoclonal antibody, infliximab. Rheumatology (Oxford). 2008;47(6):780-8.
Sekiguchi, N., Kawauchi, S., Furuya, T., Inaba, N., Matsuda, K., Ando, S., Ogasawara, M., Aburatani, H., Kameda, H., Amano, K., Abe, T., Ito, S., & Takeuchi, T. (2008). Messenger ribonucleic acid expression profile in peripheral blood cells from RA patients following treatment with an anti-TNF-alpha monoclonal antibody, infliximab. Rheumatology (Oxford, England), 47(6), 780-8. https://doi.org/10.1093/rheumatology/ken083
Sekiguchi N, et al. Messenger Ribonucleic Acid Expression Profile in Peripheral Blood Cells From RA Patients Following Treatment With an anti-TNF-alpha Monoclonal Antibody, Infliximab. Rheumatology (Oxford). 2008;47(6):780-8. PubMed PMID: 18388148.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Messenger ribonucleic acid expression profile in peripheral blood cells from RA patients following treatment with an anti-TNF-alpha monoclonal antibody, infliximab. AU - Sekiguchi,N, AU - Kawauchi,S, AU - Furuya,T, AU - Inaba,N, AU - Matsuda,K, AU - Ando,S, AU - Ogasawara,M, AU - Aburatani,H, AU - Kameda,H, AU - Amano,K, AU - Abe,T, AU - Ito,S, AU - Takeuchi,T, Y1 - 2008/04/03/ PY - 2008/4/5/pubmed PY - 2008/6/27/medline PY - 2008/4/5/entrez SP - 780 EP - 8 JF - Rheumatology (Oxford, England) JO - Rheumatology (Oxford) VL - 47 IS - 6 N2 - OBJECTIVES: We monitored the mRNA expression profiles of peripheral blood cells during treatment with a TNF-alpha inhibitor, infliximab, in patients with RA. Using a DNA microarray analysis, we demonstrated a unique set of genes, with distinct baseline and post-treatment changes in expression between responders and non-responders to infliximab treatment. METHODS: Using a customized low-density cDNA microarray with 747 genes and a reliable data collection system, we monitored the mRNA expression profiles of whole blood cells from 18 RA patients before and after the infusion of infliximab for up to 22 weeks. The clinical response to treatment with infliximab was determined using the ACR response criteria, the disease activity score of 28 joints (DAS28), and individual clinical parameters. The patients were classified as responders or non-responders based on their ACR50% response at 22 weeks. RESULTS: Approximately 15% of the total genes were found to exhibit a >1.5-fold change, compared with their reference values, at one or more time points during the 22 weeks of infliximab therapy. The expression of inflammatory genes, such as IFN-related genes, was strongly correlated with the serum level of CRP and the DAS28. The increased expression of inflammatory genes in responders was normalized within 2 weeks and then remained at a normal level during the treatment period. In contrast, in the non-responders, the elevated expression at baseline, although it was significantly decreased at 2 weeks, returned to the baseline level after 14 weeks. In addition to inflammatory genes, we identified several groups of genes with distinct differences in expression between the responders and non-responders. CONCLUSIONS: Our results suggest that a customized low-density microarray is useful for monitoring mRNA expression profiles in peripheral blood cells, enabling us to identify a unique set of genes with differentially regulated expressions in responders and non-responders to a TNF inhibitor among patients with RA. SN - 1462-0332 UR - https://www.unboundmedicine.com/medline/citation/18388148/Messenger_ribonucleic_acid_expression_profile_in_peripheral_blood_cells_from_RA_patients_following_treatment_with_an_anti_TNF_alpha_monoclonal_antibody_infliximab_ L2 - https://academic.oup.com/rheumatology/article-lookup/doi/10.1093/rheumatology/ken083 DB - PRIME DP - Unbound Medicine ER -