Journal of International Oncology ›› 2022, Vol. 49 ›› Issue (5): 282-284.doi: 10.3760/cma.j.cn371439-20211210-00052

• Original Articles • Previous Articles     Next Articles

Expressions of HSP90α and HSP90β in colorectal cancer tissues and their clinical significances

Chen Cunbao, Lu Shoutang, Wang Ruogu, Yang Jianshu, Li Jianqi, Zhen Yanan(), Xu Zhongfa()   

  1. Gastroenterology Research Institute and Clinical Center, Shandong First Medical University (Shandong Academy of Medical Sciences); Department of Gastrointestinal Surgery, Third Affiliated Hospital of Shandong First Medical University (Affiliated Hospital of Shandong Academy of Medical Sciences), Jinan 250031, China
  • Received:2021-12-10 Revised:2022-03-20 Online:2022-05-08 Published:2022-05-31
  • Contact: Zhen Yanan,Xu Zhongfa E-mail:drzhenyanan@126.com;xzfa2216@126.com

Abstract:

Objective To study the expressions of heat shock protein (HSP)90α and HSP90β in colorectal cancer and paracancer tissues, and to investigate the relationships between HSP90α, HSP90β and clinicopathological features of colorectal cancer patients, and to analyze their correlation. Methods The tumor tissues and paracancer tissues of 117 patients with colorectal cancer were selected from the Department of Gastrointestinal Surgery, Third Affiliated Hospital of Shandong First Medical University from January 2016 to December 2020. The expression levels of HSP90α and HSP90β were detected by immunohistochemistry, and the relationships between the two proteins and clinicopathological features and the correlation of their expressions were analyzed. Results The positive expression rates of HSP90α in colorectal cancer tissues and paracancer tissues were 74.4% (87/117) and 12.0% (14/117), and there was a statistically significant difference (χ2=92.83, P<0.001). The positive expression rate of HSP90β in colorectal cancer tissues and paracancer tissues was 61.5% (72/117) and 10.3% (12/117), and there was a statistically significant difference (χ2=66.86, P<0.001). The expression of HSP90α was correlated with tumor location (χ2=8.67, P=0.003), vascular invasion (χ2=8.68, P=0.003), lymph node metastasis (χ2=8.52, P=0.004), T stage (χ2=21.07, P<0.001), N stage (χ2=11.94, P=0.003), M stage (χ2=5.37, P=0.020), pathological stage (χ2=25.64, P<0.001). The expression of HSP90β was correlated with lymph node metastasis (χ2=4.03, P=0.045), T stage (χ2=11.09, P=0.007), N stage (χ2=6.56, P=0.038), M stage (χ2=12.43, P<0.001), pathological stage (χ2=17.34, P=0.001). There was a positive correlation between the expressions of the two proteins in colorectal cancer tissues (r=0.42, P<0.001). Conclusion The expressions of HSP90α and HSP90β in colorectal cancer tissues are significantly higher than those in paracancer tissues, and they are related to lymph node metastasis and pathological stage. There is a positive correlation between the two proteins, which may be involved in the occurrence and development of colorectal cancer and are expected to become new tumor markers.

Key words: Colorectal neoplasms, HSP90α, HSP90β