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Dai L, Hu W, Jiang H, Wang Y, Le Q, Wu X, Meng X. The diagnostic potential of two exosome-derived circRNAs for papillary thyroid cancer. Int J Clin Oncol 2023; 28:1461-1474. [PMID: 37568034 DOI: 10.1007/s10147-023-02400-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023]
Abstract
BACKGROUND As a critical component of exosomes, circular RNAs (circRNAs) have shown great value in cancer diagnosis. This study aimed to identify circRNAs in exosomes for the diagnosis of PTC (papillary thyroid carcinoma). METHODS We selected hsa_circ_0082002 and hsa_circ_0003863 based on circRNA microarray. The levels of exosomal hsa_circ_0082002 and hsa_circ_0003863 in the sera of healthy control (n = 68), benign thyroid tumors (n = 60), and PTC without and with Hashimoto's thyroiditis (n = 164) were quantified by qPCR (quantitative polymerase chain reaction). Receiver operating characteristic analyses were conducted to evaluate the diagnostic sensitivity and specificity. Bioinformatics databases were used to predict the microRNAs and proteins binding with hsa_circ_0082002 and hsa_circ_0003863. RESULTS The levels of exosomal hsa_circ_0082002 and hsa_circ_0003863 were positively associated and statistically increased in PTC compared to healthy and benign thyroid tumors. Intriguingly, higher levels of exosomal hsa_circ_0082002 and hsa_circ_0003863 were positively correlated with lymph node metastasis and vascular invasion in PTC. Further stability tests show that exosomal hsa_circ_0082002 and hsa_circ_0003863 could exist stably in sera treated by several freeze-thaw cycles at -20 °C and with a storage time shorter than 24 h at 4 °C. Furthermore, hsa_circ_0082002 and hsa_circ_0003863 were predicted to interact with microRNAs and proteins, suggesting that hsa_circ_0082002 and hsa_circ_0003863 might contribute to the occurrence and progression of PTC through interacting with microRNAs and RNA binding proteins. CONCLUSION Collectively, we identified two PTC-related circRNAs incorporated in exosomes and uncovered their potential as tumor markers to diagnose PTC, in particular, more aggressive PTC.
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Affiliation(s)
- Lei Dai
- Department of Thyroid Surgery, Ningbo No. 2 Hospital, 41 Xibei Road, Haishu, Ningbo, 315000, ZJ, China
| | - Weibin Hu
- Department of Surgery, Xiangshan County Red Cross Taiwan Compatriots Hospital Medical and Health Group General Hospital, Ningbo, 315700, China
| | - Han Jiang
- Department of Biochemistry and Molecular Biology, the Health Science Center of Ningbo University, 818 Fenghua Road, Ningbo, ZJ, China
- Zhejiang Provincial Key Laboratory of Pathophysiology, the Health Science Center of Ningbo University, Ningbo, 315211, China
| | - Yingchun Wang
- Department of Thyroid Surgery, Ningbo No. 2 Hospital, 41 Xibei Road, Haishu, Ningbo, 315000, ZJ, China
| | - Qi Le
- Department of Thyroid Surgery, Ningbo No. 2 Hospital, 41 Xibei Road, Haishu, Ningbo, 315000, ZJ, China
| | - Xianjiang Wu
- Department of Thyroid Surgery, Ningbo No. 2 Hospital, 41 Xibei Road, Haishu, Ningbo, 315000, ZJ, China.
| | - Xiaodan Meng
- Department of Biochemistry and Molecular Biology, the Health Science Center of Ningbo University, 818 Fenghua Road, Ningbo, ZJ, China.
- Zhejiang Provincial Key Laboratory of Pathophysiology, the Health Science Center of Ningbo University, Ningbo, 315211, China.
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