• 1. The First School of Clinical Medical, Gansu University of Chinese Medicine, Lanzhou 730000, P. R. China;
  • 2. Department of General Surgery, Gansu Provincial Central Hospital, Lanzhou 730070, P. R. China;
HAN Xiaopeng, Email: hanxiaopeng74@163.com
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Objective To comprehend the impact of perineural invasion (PNI) on the occurrence, development, and prognosis of colorectal cancer (CRC), providing a reference for the diagnosis and treatment of CRC. Method The latest literature relevant researches on the mechanism, diagnosis, treatment, and prognosis of PNI in CRC both domestically and internationally was reviewed. Results The mechanisms underlying PNI involved nerve growth factors, chemokines, and other signaling molecules, which regulated the interactions between the nerves and cancer cells to promote the tumor invasion and metastasis. The diagnostic approaches primarily relied on the histopathological examination with immunohistochemistry and radiomics. Therapeutically, the PNI-positive patients benefited from surgical intervention in combination with neoadjuvant or adjuvant treatment. Targeting the neural pathways and immune checkpoint inhibitors (such as programmed cell death 1 and cytotoxic T lymphocyte associated protein 4 inhibitors) showed potentials in reducing neural invasion and tumor progression. Emerging strategies that disrupted tumor-nerve interactions also represented promising therapeutic avenues. The PNI was recognized as a critical prognostic indicator for CRC, providing guidance in risk assessment and individualized treatment planning. Conclusions PNI serves as an important indicator for evaluating the prognosis of CRC, it has a guiding value for therapy decision-making. Further research of molecular mechanisms and diagnostic methods relevant PNI can potentially yield more effective therapeutic options and is expected to improve prognosis of patients with CRC.

Citation: LI Yanjie, YU Jianping, WANG Hongyu, WANG Jinbao, YANG Gaosheng, HAN Xiaopeng. Research progress on perineural invasion in colorectal cancer. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2025, 32(2): 258-264. doi: 10.7507/1007-9424.202407066 Copy

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