{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T14:07:18Z","timestamp":1791209238796,"version":"4.1.0"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"02","license":[{"start":{"date-parts":[[2021,7,12]],"date-time":"2021-07-12T00:00:00Z","timestamp":1626048000000},"content-version":"vor","delay-in-days":2294,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Indian J Med Paediatr Oncol"],"published-print":{"date-parts":[[2015,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Background and objectives: Oral Submucous Fibrosis (OSF) is a potentially malignant oral disorder which leads to fibrosis of the oral mucosa and has a high rate of malignant transformation. The consumption of various forms of areca nut is causatively linked to the condition. The constituents of areca nut activate several pro-fibrotic cytokines, chiefly transforming growth factor-\u03b21, \u03b22, which leads to an increased deposition and decreased degradation of extracellular matrix and collagen. TGF-\u03b21, \u03b22 probably represent the major pathway in the deposition of collagen fibres in this condition. The present study aims to identify and correlate the expressions of TGF-\u03b21 and TGF-\u03b22 immunohistochemically on paraffin sections of various stages of OSF. A comparison was also made between normal oral mucosa and scar tissue and OSF to judge the mode, extent and type of expression of TGF \u03b21, \u03b22. Methods: The expression of TGF-\u03b21 antibody (8A11, NovusBio, USA) and TGF-\u03b22 antibody (TB21, NovusBio, USA) was detected immunohistochemically on paraffin sections of 58 and 70 cases of OSF respectively, 10 cases of normal oral mucosal tissue and 4 cases of scar tissue. A mapping of the positivity of the two cytokines was done using JenOptik camera and ProReg image analysis software. The results were statistically analysed using one way ANOVA and students \"t\" test. Results: Expression of TGF-\u03b21 and TGF-\u03b22 was more in OSF as compared with normal oral mucosa, scar\/keloid tissue showing highest values. Positivity for both the markers was seen in epithelium, around the blood vessels, in areas of inflammatory infiltrate, fibroblasts and in muscles. TGF-\u03b21 expression was higher and more intense than that of TGF-\u03b22 in all the cases. TGF-\u03b22 was restricted in its expression to submucosal area with minimal involvement of the epithelium and the deeper muscle tissue. Conclusion: TGF-\u03b21 is the most prominent cytokine in the fibrotic pathway and TGF-\u03b22 plays a contributory role.<\/jats:p>","DOI":"10.4103\/0971-5851.158842","type":"journal-article","created":{"date-parts":[[2015,6,16]],"date-time":"2015-06-16T02:41:34Z","timestamp":1434422494000},"page":"111-116","source":"Crossref","is-referenced-by-count":28,"title":["Transforming growth factor-\u03b21 and TGF-\u03b22 act synergistically in the fibrotic pathway in oral submucous fibrosis: An immunohistochemical observation"],"prefix":"10.1055","volume":"36","author":[{"given":"Venkatesh Viswanath","family":"Kamath","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College, Hospital and Research Centre, Munnekolala, Marathalli, Bengaluru, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shruti","family":"Krishnamurthy","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College, Hospital and Research Centre, Munnekolala, Marathalli, Bengaluru, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krishnanand P.","family":"Satelur","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College, Hospital and Research Centre, Munnekolala, Marathalli, Bengaluru, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Komali","family":"Rajkumar","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Pathology, Dr. Syamala Reddy Dental College, Hospital and Research Centre, Munnekolala, Marathalli, Bengaluru, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2021,7,12]]},"container-title":["Indian Journal of Medical and Paediatric Oncology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.4103\/0971-5851.158842.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,6,7]],"date-time":"2024-06-07T00:54:54Z","timestamp":1717721694000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.4103\/0971-5851.158842"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,4]]},"references-count":0,"journal-issue":{"issue":"02","published-online":{"date-parts":[[2021,7,12]]},"published-print":{"date-parts":[[2015,4]]}},"URL":"https:\/\/doi.org\/10.4103\/0971-5851.158842","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["0971-5851","0975-2129"],"issn-type":[{"value":"0971-5851","type":"print"},{"value":"0975-2129","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,4]]}}}