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Published in: Journal of Endocrinological Investigation 1/2024

Open Access 21-07-2023 | Testosterone | Original Article

Testosterone promotes the migration, invasion and EMT process of papillary thyroid carcinoma by up-regulating Tnnt1

Authors: C. Jiang, F. Xu, D. Yi, B. Jiang, R. Wang, L. Wu, H. Ding, J. Qin, Y. Lee, J. Sang, X. Shi, L. Su

Published in: Journal of Endocrinological Investigation | Issue 1/2024

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Abstract

Purpose

To explore the key genes and molecular pathways in the progression of thyroid papillary carcinoma (PTC) promoted by testosterone using RNA-sequencing technology, and to provide new drug targets for improving the therapeutic effect of PTC.

Methods

Orchiectomy (ORX) was carried out to construct ORX mouse models. TPC-1 cells were subcutaneously injected for PTC formation in mice, and the tumor tissues were collected for RNA-seq. The key genes were screened by bioinformatics technology. Tnnt1 expression in PTC cells was knocked down or overexpressed by transfection. Cell counting kit-8 (CCK-8), colony formation assay, scratch assay and transwell assay were adopted, respectively, for the detection of cell proliferation, colony formation, migration and invasion. Besides, quantification real-time polymerase chain reaction (qRT-PCR) and western blot were utilized to determine the mRNA and protein expression levels of genes in tissues or cells.

Results

Both estradiol and testosterone promoted the growth of PTC xenografts. The key gene Tnnt1 was screened and obtained by bioinformatics technology. Functional analysis revealed that overexpression of Tnnt1 could markedly promote the proliferation, colony formation, migration, invasion, and epithelial-to-mesenchymal transition (EMT) process of PTC cells, as well as could activate p38/JNK pathway. In addition, si-Tnt1 was able to inhibit the cancer-promoting effect of testosterone.

Conclusion

Based on the outcomes of bioinformatics and basic experiments, it is found that testosterone can promote malignant behaviors such as growth, migration, invasion and EMT process of PTC by up-regulating Tnnt1 expression. In addition, the function of testosterone may be achieved by activating p38/JNK signaling pathway.
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Metadata
Title
Testosterone promotes the migration, invasion and EMT process of papillary thyroid carcinoma by up-regulating Tnnt1
Authors
C. Jiang
F. Xu
D. Yi
B. Jiang
R. Wang
L. Wu
H. Ding
J. Qin
Y. Lee
J. Sang
X. Shi
L. Su
Publication date
21-07-2023
Publisher
Springer International Publishing
Published in
Journal of Endocrinological Investigation / Issue 1/2024
Electronic ISSN: 1720-8386
DOI
https://doi.org/10.1007/s40618-023-02132-1

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