Home Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.7, p.386-390, 2017

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564


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Bratislava Medical Journal Vol.118, No.7, p.386-390, 2017

Title: Dose-dependent effects of adiponectin on ADAMTS-9 gene expression in human chondrocytes
Author: K. O. Yaykasli, O. F. Hatipoglu, E. Yaykasli, E. Kaya, M. Ozsahin, M. Uslu

Abstract: OBJECTIVE: A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS), comprising of 19 members is a family of peptidases. They have several vital functions in physiological and pathological processes in organisms. ADAMTS-9 has aggrecanolytic activity and is responsible for degradation of aggrecan mainly in articular cartilage. It is known that adiponectin is the most abundantly secreted adipokine (adipocytokines), and the characteristics of adiponectin have not been elucidated yet. It was assumed that adiponectin has anti-inflammatory effect before. However, an inflammatory feature of adiponectin was shown in researches. In our study, the effect of adiponectin on ADAMTS-9 gene expression in primary human chondrocytes was investigated.
METHODS: Primary human chondrocytes were exposed to adiponectin at 1, 4, 8 and 12 µg/ml doses for certain time period. Total RNA was isolated and reverse-transcribed by random primer after incubation. ADAMTS-9 and β-actin genes expression levels were determined using real-time polymerase chain reaction (qRT-PCR).
RESULTS: The highest upregulation of ADAMTS-9 gene expression level was found at 12 µg/ml dose of adiponectin and 48 h incubation.
CONCLUSION: Adiponectin is the key element in the maintenance of cartilage homeostasis. Similarly, the involvement of adiponectin in articular inflammatory diseases was demonstrated in detail. These findings bring adiponectin into central place in the research to develop adiponectin based new therapy methods for arthritic diseases. Together with these findings, our results suggest that adiponectin may be involved in the degradation of articular cartilage by increasing ADAMTS-9 gene expression (Tab. 1, Fig. 3, Ref. 35).

Keywords: adiponectin, ADAMTS-9, human chondrocytes
Published online: 24-Jul-2017
Year: 2017, Volume: 118, Issue: 7 Page From: 386, Page To: 390

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