bims-netuvo Biomed News
on Nerves in tumours of visceral organs
Issue of 2022‒03‒27
two papers selected by
Maksym V. Kopanitsa
The Francis Crick Institute

  1. Cell Death Discov. 2022 Mar 25. 8(1): 131
      A high intratumoral nerve density is correlated with poor survival, high metastasis, and high recurrence across multiple solid tumor types. Recent research has revealed that cancer cells release diverse neurotrophic factors and exosomes to promote tumor innervation, in addition, infiltrating nerves can also mediate multiple tumor biological processes via exosomes and neurotransmitters. In this review, through seminal studies establishing tumor innervation, we discuss the communication between peripheral nerves and tumor cells in the tumor microenvironment (TME), and revealed the nerve-tumor regulation mechanisms on oncogenic process, angiogenesis, lymphangiogenesis, and immunity. Finally, we discussed the promising directions of 'old drugs newly used' to target TME communication and clarified a new line to prevent tumor malignant capacity.
  2. Dis Colon Rectum. 2022 Mar 23.
      BACKGROUND: Lymphatic invasion, vascular invasion, and perineural invasion are prognostic factors for colon cancer. However, the prognostic significance of those factors according to the location of permeation (intramural and extramural invasion) in stage II colon cancer is still unclear.OBJECTIVE: This study aims to clarify whether the location of lymphatic invasion, vascular invasion, and perineural invasion could affect survival of stage II colon cancer patients.
    DESIGN: This was a retrospective cohort study.
    SETTINGS: This study took place at a university teaching hospital.
    PATIENTS: A total of 1130 patients with stage II colon cancers who underwent radical surgery at the Seoul National University Hospital between July 2003 and December 2015 were included.
    MAIN OUTCOME MEASURES: Patients were classified according to the location of lymphatic invasion, vascular invasion, and perineural invasion. Survival outcomes were compared among those without invasion, and those with intramural and extramural invasion. Primary end point is overall survival and secondary end point is disease free survival.
    RESULTS: Disease-free survival and overall survival of patients with extramural invasion were worse than those of patients without invasion and those with intramural invasion. Multivariate analysis for survival outcomes confirmed that extramural invasion were significant independent prognostic factors. However, both disease free survival and overall survival were not significantly different between patients without invasion and those with intramural invasion.
    LIMITATIONS: This study was limited by its retrospective design.
    CONCLUSIONS: Extramural invasion was associated with worse prognosis in stage II colon cancer, but intramural invasion was not. Therefore, pathologic reports about the location of lymphatic invasion, vascular invasion, and perineural invasion might be helpful for predicting prognosis and for determining the need of adjuvant chemotherapy in stage II colon cancers. See Video Abstract at