Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis
<p>Abstract</p> <p>Background</p> <p>The purpose of this study was to determine the reaction mechanism of corticosteroid by analyzing the expression patterns of neuropeptides (substance P (SP), calcitonin gene related peptide (CGRP)) and of cytokines (interleukin (IL)-1...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2012-10-01
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| Series: | Journal of Inflammation |
| Subjects: | |
| Online Access: | http://www.journal-inflammation.com/content/9/1/40 |
| _version_ | 1811286406997213184 |
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| author | Han Soo An Hee Song Ji Shin Dong Kwon Young Shim Jong Lee Soon |
| author_facet | Han Soo An Hee Song Ji Shin Dong Kwon Young Shim Jong Lee Soon |
| author_sort | Han Soo |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>The purpose of this study was to determine the reaction mechanism of corticosteroid by analyzing the expression patterns of neuropeptides (substance P (SP), calcitonin gene related peptide (CGRP)) and of cytokines (interleukin (IL)-1α, tumor growth factor (TGF)-β) after corticosteroid treatment in lateral epicondylitis. In addition, we also investigated whether corticosteroid influenced tenocyte viability.</p> <p>Methods</p> <p>The corticosteroid triamcinolone acetonide (TAA) was applied to cultured tenocytes of lateral epicondylitis, and the changes in the mRNA expressions of neuropeptides and cytokines and tenocyte viabilities were analyzed at seven time points. Quantitative real-time polymerase chain reaction and an MTT assay were used.</p> <p>Results</p> <p>The expression of SP mRNA was maximally inhibited by TAA at 24 hours but recovered at 72 hours, and the expressions of CGRP mRNA and IL-1α mRNA were inhibited at 24 and 3 hours, respectively. The expression of TGF-β mRNA was not significant. Tenocyte viability was significantly reduced by TAA at 24 hours.</p> <p>Conclusions</p> <p>We postulate that the reaction mechanism predominantly responsible for symptomatic relief after a corticosteroid injection involves the inhibitions of neuropeptides and cytokines, such as, CGRP and IL-1α. However the tenocyte viability was compromised by a corticosteroid.</p> |
| first_indexed | 2024-04-13T02:59:18Z |
| format | Article |
| id | doaj.art-ffa33e8581e94ab88b4e6ff42eee2b6e |
| institution | Directory Open Access Journal |
| issn | 1476-9255 |
| language | English |
| last_indexed | 2024-04-13T02:59:18Z |
| publishDate | 2012-10-01 |
| publisher | BMC |
| record_format | Article |
| series | Journal of Inflammation |
| spelling | doaj.art-ffa33e8581e94ab88b4e6ff42eee2b6e2022-12-22T03:05:30ZengBMCJournal of Inflammation1476-92552012-10-01914010.1186/1476-9255-9-40Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitisHan SooAn HeeSong JiShin DongKwon YoungShim JongLee Soon<p>Abstract</p> <p>Background</p> <p>The purpose of this study was to determine the reaction mechanism of corticosteroid by analyzing the expression patterns of neuropeptides (substance P (SP), calcitonin gene related peptide (CGRP)) and of cytokines (interleukin (IL)-1α, tumor growth factor (TGF)-β) after corticosteroid treatment in lateral epicondylitis. In addition, we also investigated whether corticosteroid influenced tenocyte viability.</p> <p>Methods</p> <p>The corticosteroid triamcinolone acetonide (TAA) was applied to cultured tenocytes of lateral epicondylitis, and the changes in the mRNA expressions of neuropeptides and cytokines and tenocyte viabilities were analyzed at seven time points. Quantitative real-time polymerase chain reaction and an MTT assay were used.</p> <p>Results</p> <p>The expression of SP mRNA was maximally inhibited by TAA at 24 hours but recovered at 72 hours, and the expressions of CGRP mRNA and IL-1α mRNA were inhibited at 24 and 3 hours, respectively. The expression of TGF-β mRNA was not significant. Tenocyte viability was significantly reduced by TAA at 24 hours.</p> <p>Conclusions</p> <p>We postulate that the reaction mechanism predominantly responsible for symptomatic relief after a corticosteroid injection involves the inhibitions of neuropeptides and cytokines, such as, CGRP and IL-1α. However the tenocyte viability was compromised by a corticosteroid.</p>http://www.journal-inflammation.com/content/9/1/40Lateral epicondylitisCorticosteroidNeuropeptidemRNATenocyte viability |
| spellingShingle | Han Soo An Hee Song Ji Shin Dong Kwon Young Shim Jong Lee Soon Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis Journal of Inflammation Lateral epicondylitis Corticosteroid Neuropeptide mRNA Tenocyte viability |
| title | Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis |
| title_full | Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis |
| title_fullStr | Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis |
| title_full_unstemmed | Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis |
| title_short | Effects of corticosteroid on the expressions of neuropeptide and cytokine mRNA and on tenocyte viability in lateral epicondylitis |
| title_sort | effects of corticosteroid on the expressions of neuropeptide and cytokine mrna and on tenocyte viability in lateral epicondylitis |
| topic | Lateral epicondylitis Corticosteroid Neuropeptide mRNA Tenocyte viability |
| url | http://www.journal-inflammation.com/content/9/1/40 |
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