Related Experiment Video
Updated: May 31, 2026

09:28
Patient-derived Orthotopic Xenograft Models for Human Urothelial Cell Carcinoma and Colorectal Cancer Tumor Growth and Spontaneous Metastasis
Published on: May 12, 2019
SOX4 expression levels in urothelial bladder carcinoma.
Sezgin Gunes1, Zeynep Yegin, Yurdanur Sullu
1Department of Medical Biology and Genetics, Ondokuz Mayis University, Faculty of Medicine, 55139, Samsun, Turkey. sgunes@omu.edu.tr
Pathology, Research and Practice
|June 18, 2011
Summary
SOX4 gene expression is elevated in bladder cancer, suggesting its potential role in tumor development. This finding highlights SOX4 as a possible factor in bladder cancer tumorigenesis.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- SOX4 gene expression is elevated in various human cancers.
- SOX4 protein may influence apoptosis and tumorigenesis.
- The role of SOX4 in bladder cancer requires further investigation.
Purpose of the Study:
- To investigate SOX4 gene and protein expression levels in bladder cancer tissues.
- To determine the association between SOX4 expression and bladder cancer development.
Main Methods:
- Immunohistochemistry was used to detect SOX4 protein presence.
- Real-time PCR quantified SOX4 gene expression levels.
- Bladder tumor samples (n=57) and normal bladder biopsies (n=13) were analyzed.
Main Results:
- SOX4 gene expression was 2.2-fold higher in bladder tumors compared to normal tissue.
- Immunostaining confirmed significantly higher SOX4 protein levels in bladder tumors (P=0.001).
Conclusions:
- SOX4 gene expression is significantly upregulated in bladder cancer.
- SOX4 may play a role in the tumorigenesis of bladder cancer.
Related Concept Videos
Pleiotropy
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
Urinary Bladder
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...

