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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/35403
Title: Circulating thyrotropin receptor messenger ribonucleic acid is not an effective marker in the follow-up of differentiated thyroid carcinoma
Authors: Surasawadee Ausavarat
Jiraporn Sriprapaporn
Busara Satayaban
Wanna Thongnoppakhun
Aunchalee Laipiriyakun
Boontham Amornkitticharoen
Rujaporn Chanachai
Chaveevan Pattanachak
Mahidol University
Keywords: Biochemistry, Genetics and Molecular Biology;Medicine
Issue Date: 4-Aug-2015
Citation: Thyroid Research. Vol.8, No.1 (2015)
Abstract: © 2015 Ausavarat et al. Background: Circulating thyrotropin receptor messenger ribonucleic acid (TSHR mRNA) assay has been validated in the follow-up of differentiated thyroid carcinoma (DTC) because of its high sensitivity during thyroid hormone therapy and no interference with endogenous anti-thyroglobulin antibodies (TgAb) compared to serum thyroglobulin (Tg). We investigated the efficacy of TSHR mRNA assay in 160 DTC patients using quantitative PCR (qPCR). Findings: Only TSHR mRNA level of structural persistent disease with TgAb-positive (3.47 (2.97-9.53) pg equivalents/μg total RNA; p=0.013) and its subgroup of distant metastasis patients with TgAb-positive (5.55 (3.28-12.52) pg equivalents/μg total RNA; p=0.009) were significantly different from patients with no evidence of disease (2.32 (1.44-3.94) pg equivalents/μg total RNA). Applying cutoff at 2.00 pg equivalents/μg total RNA enabled us to predict structural persistent disease patients with a sensitivity of 62.3 % and a specificity of 42.9 %. Although, the sensitivity of TSHR mRNA assay in TgAb-postive patients (88.2 %) was superior than serum Tg (47.1 %) (p=0.00002), the accuracy of the test is only 54.5 %. Conclusions: This study demonstrated that TSHR mRNA assay has good sensitivity in TgAb-positive patients but it is neither specific enough as a first-line of testing nor a surrogate marker in the follow-up of our DTC patients.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84938603522&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/35403
ISSN: 17566614
Appears in Collections:Scopus 2011-2015

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