Volume 63, Issue 2 pp. 286-300
RESEARCH ARTICLE

KLHDC7B as a novel diagnostic biomarker in urine exosomal mRNA promotes bladder urothelial carcinoma cell proliferation and migration, inhibits apoptosis

Jiayin Hou

Jiayin Hou

Institute of Medical Technology, Peking University Health Science Center, Beijing, China

Department of Clinical Laboratory, Peking University First Hospital, Beijing, China

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Haiming Huang

Haiming Huang

Department of Clinical Laboratory, Peking University First Hospital, Beijing, China

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Junyi Xie

Junyi Xie

Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China

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Wei Yu

Corresponding Author

Wei Yu

Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China

Correspondence Haixia Li, Department of Clincal Laboratory, Peking University First Hospital, Beijing, China.

Email: [email protected]

Wei Yu and Han Hao, Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China.

Email: [email protected] and [email protected]

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Han Hao

Corresponding Author

Han Hao

Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China

Correspondence Haixia Li, Department of Clincal Laboratory, Peking University First Hospital, Beijing, China.

Email: [email protected]

Wei Yu and Han Hao, Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China.

Email: [email protected] and [email protected]

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Haixia Li

Corresponding Author

Haixia Li

Institute of Medical Technology, Peking University Health Science Center, Beijing, China

Department of Clinical Laboratory, Peking University First Hospital, Beijing, China

Correspondence Haixia Li, Department of Clincal Laboratory, Peking University First Hospital, Beijing, China.

Email: [email protected]

Wei Yu and Han Hao, Department of Urology, Peking University First Hospital and Institute of Urology, Beijing, China.

Email: [email protected] and [email protected]

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First published: 27 October 2023

Abstract

Bladder cancer is a common kind of urinary system cancer, in which bladder urothelial carcinoma (BLCA) comprises approximately 90% of all bladder cancer types. In our previous study, we discovered KLHDC7B in urine exosomal messenger RNA (mRNA) as a prospective molecular marker for bladder cancer detection. To systematically study the role and mechanism of KLHDC7B in BLCA, we focused on the most common type of BLCA in this study. First, we used RNA sequencing to discover that KLHDC7B was considerably increased in BLCA patients' urine exosomes compared to healthy controls. Then, we validated this result in an independent cohort and identified it as an effective tool for diagnosing and distinguishing high-grade and low-grade BLCA. Finally, we studied the role and mechanism of KLHDC7B in BLCA at the cellular level, providing a functional basis for its expression as a novel laboratory diagnostic biomarker for BLCA exosomal mRNA, which has important theoretical and clinical significance.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available on request from the corresponding author. The data are not publicly available due to privacy or ethical restrictions.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.