Title of article :
Expression of highly polysialylated neural cell adhesion molecule in pancreatic cancer neural invasive lesion
Author/Authors :
Kameda، نويسنده , , Kunio and Shimada، نويسنده , , Hiroshi and Ishikawa، نويسنده , , Takashi and Takimoto، نويسنده , , Atsushi and Momiyama، نويسنده , , Nobuyoshi and Hasegawa، نويسنده , , Satoshi and Misuta، نويسنده , , Kouichiro and Nakano، نويسنده , , Akira and Nagashima، نويسنده , , Yoji and Ichikawa، نويسنده , , Yasushi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Abstract :
Neurotropism of pancreatic cancer is one of the hypotheses explaining neural invasion, which is one of the characteristics of pancreatic cancer. In these studies, we immunohistochemically examined neural cell adhesion molecules (NCAM), homophilic adhesion molecules expressed on the nerve cells, as a factor of neurotropism, in 15 pancreatic cancer operatively obtained, especially in neural invasive lesions. We also investigated the role of polysialic acid (PSA), which is attached to NCAM and related to the malignant potential of cancers. NCAM was detected in 66.7% of pancreatic cancers, and in all 9 cases with massive perineural invasion. In neural invasive lesions, however, there were perineurium and endoneurium, which do not express NCAM, between the cancer and nerve cells. PSA was also detected in the pancreatic cancers expressing NCAM. Moreover, PSA expression was stronger in the perineural invasive lesions than in the main tumor and was related to the cancer cell proliferation investigated by Ki-67 staining. It is unlikely therefore, that NCAM plays an important role in neurotropism. However, the NCAM expressed on the pancreatic cancer was attached to PSA, which itself plays an important role in the malignant potential of this disease.
Keywords :
Perineural invasion , pancreatic cancer , Neurotropism , Polysialic acid , Neural cell adhesion molecules
Journal title :
Cancer Letters
Journal title :
Cancer Letters