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Ongkowijaya, Jeffrey A
Indonesian Rheumatology Association
Medicine & Pharmacology

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Role of interleukin-17 in the pathogenesis of rheumatoid arthritis Ongkowijaya, Jeffrey A; Setiyohadi, Bambang; Sumariyono, Sumariyono; Kasjmir, Yoga I
Indonesian Journal of Rheumatology Vol 2, No 2 (2010)
Publisher : Indonesian Rheumatology Association

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Abstract

Rheumatoid arthritis (RA) is a systemic autoimmune disorder with an unknown etiology. It typically affects the peripheral synovial joints symmetrically. The roles of T and B cells, macrophages, plasmocytes, host tissue cells (synoviocytes, chondrocytes), and osteoclastsin RA are more defi ned. In RA, cytokines secreted by cells implicated in adaptive and natural immunity have important roles in causing infl ammation, articular destruction, and other comorbid diseases related to RA. Other than the clear roles of interleukin (IL)-1 and tumor necrosis factor α, there are other cytokines that are suspected of having roles in the pathogenesis of RA, IL-17 for instance. Interleukin-17 is a proinfl ammatory cytokine,  produced by Th17 cells, and has pleiotropic effects on various cells contributing to the pathogenic condition of RA. Several studies showed that this cytokine maintains the infl ammation and causes more destruction of joint cartilage. Advances in the understanding of the role of IL-17 elicits the idea to modulate IL-17 and/or Th17 cells as the potential targetsof therapy in RA
Erosive osteoarthritis Ongkowijaya, Jeffrey A; Setiyohadi, Bambang; Sumariyono, Sumariyono
Indonesian Journal of Rheumatology Vol 2, No 2 (2010)
Publisher : Indonesian Rheumatology Association

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Abstract

Osteoarthritis (OA) is a degenerative joint disease characterized by the erosion of cartilage joints, hypertrophy of the marginal bone, subchondral sclerosis, and the morphological and biochemical changes of synovial membrane and joint capsule.This clinical syndrome is characterized by joint pain caused by degeneration of the joints. It is the most common joint disease to afflict the elderly and it occurs more often with age.1–3 Erosive osteoarthritis is a subset of OA in which there is a destruction of the joints as a result of inflammation.3,4 Changes mainly occur on the distal interphalangeal (DIP) joints, proximal interphalangeal (PIP) joints, carpometacarpal (CMC) joints, and very rarely occur on other joints of hand or of other body parts.3–5 The diagnosis is in accordance with the criteria of American College of Rheumatology (ACR) for OA and is supported by the existence of bone erosion on the radiological image. The management of this disease is merely for palliative purpose.
Correlation of matrix metalloproteinase-9 level, erythrocyte sedimentation rate, rheumatoid factor, and the duration of illness with radiological findings in rheumatoid arthritis patients Aji, G; Manuaba, Ida Ayu Ratih Wulansari; Ongkowijaya, Jeffrey A; Setiyohadi, Bambang; Sumariyono, Sumariyono
Indonesian Journal of Rheumatology Vol 2, No 2 (2010)
Publisher : Indonesian Rheumatology Association

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Abstract

Background: Rheumatoid arthritis (RA) is a common autoimmune disease of the joint indicated by chronic inflammation of synovium, cartilage destruction, and osteopenia. The end results of RA are joint deformity and disability that will decrease the quality of life ofthe patients. Until now there is not a specifi c marker to assess the process of joint and bone damage in RA. Available markers such as C-reactive protein and erythrocyte sedimentation rate (ESR) indicate more about the infl ammatory status of the patient. Thediscovery of matrix metalloproteinases (MMPs) enzyme overexpression in RA has brought a new hope for the discovery of more specifi c markers of joint damage.Objective: To study the correlation of MMP-9 level, ESR, rheumatoid factor (RF), and the duration of illness with joint damage in RA patients.Methods: A cross-sectional study was conducted on RA outpatients in rheumatology clinic at Cipto Mangunkusumo General Hospital, Jakarta from January to October 2009. From the patients who fulfilled the inclusion criteria and did not fulfi ll the exclusion criteria, blood sample was collected for MMP-9 level, RF, and ESR examinations; hand radiography (posterior-anterior view) was also taken. Results: From the study of 46 patients, we found a significant correlation between MMP-9 level and radiographic feature of bone erosion (r = 0.3, p = 0.02) and between the duration of illness and Sharp score (r = 0.36, p = 0.014). There was no correlation between ESR and radiological fi ndings nor between RF and radiological fi ndings. Linear regression analysis showed the duration of illness as the most infl uencing factor toradiological fi ndings in RA patients.Conclusion: We found a signifi cant correlation between MMP-9 level and radiographic feature of bone erosion, and between the duration of illness and radiological fi ndings in RA patients.
Co-Authors Aji, G Bambang Setiyohadi Kasjmir, Yoga I Sumariyono Sumariyono