High RSK4 expression constitutes a predictor of poor prognosis for patients with clear cell renal carcinoma.

This research focuses on exploring RSK4 protein expression within Clear Cell Renal Cell Carcinoma (ccRCC), based on these investigations on level of expressions coupled with the relevance to clinicopathologic features and clinical outcomes.

The expression of RSK4 in 48 ccRCC and 20 hydronephrosis samples were under the detection of immunohistochemistry; besides, its relevance to the combination of clinicopathologic features with prognosis was committed in virtue of statistical approaches.

The 48 ccRCC samples included 36 (75%, 36/48) positive for RSK4, while the positive rate in hydronephrosis samples were 5 (25%, 5/20). Statistical analysis showed that RSK4 in ccRCC samples express higher expression the hydronephrosis samples (P < 0.05). Furthermore, the expression of RSK4 in ccRCC samples weren't correlated with ages and genders (P > 0.05), while WHO/ISUP nucleolar grade harboured relevance to low survival rate (P = 0.018). Molecular researches demonstrated that over-expression of RSK4 was able to upgrade the proliferation capability of ccRCC cell lines.

According to the expression pattern and molecular systems featured RSK4 in ccRCCs, it performed the function of a latent independent prognostic factor performing the function of a newly built latent therapeutic aim oriented with the patients undergoing RCC. Moreover, the specific mechanism of action is expected to be revealed in the future research.

Pathology, research and practice. 2021 Oct 02 [Epub ahead of print]

Jing Ma, Kaijing Wang, Jia Chai, Tianqi Xu, Jie Wei, Yixiong Liu, Yangang Wang, Junpeng Xu, Mingyang Li, Linni Fan

State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Air Force Medical University, Xi'an, Shaan Xi Province, China., Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi 710032, China., State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Air Force Medical University, Xi'an, Shaan Xi Province, China; The 31666 Troop of PLA, Wuwei 733000, China. Electronic address: ., State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Air Force Medical University, Xi'an, Shaan Xi Province, China. Electronic address: ., State Key Laboratory of Cancer Biology, Department of Pathology, Xijing Hospital and School of Basic Medicine, Air Force Medical University, Xi'an, Shaan Xi Province, China. Electronic address: .