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Int J Clin Oncol. 2014 Feb;19(1):81-6. doi: 10.1007/s10147-013-0529-6. Epub 2013 Feb 27.

Changes of immunological parameters with administration of Japanese Kampo medicine (Juzen-Taihoto/TJ-48) in patients with advanced pancreatic cancer.

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  • 1Department of Digestive and Transplant Surgery, Institute of Health Bioscience, Graduate School of Medicine, The University of Tokushima, 3-18-15 Kuramoto, Tokushima, 770-8503, Japan,



The prognosis of pancreatic cancer is extremely poor regardless of various combination therapies. Immunoaugumentation against tumor cells was recently A focus. We reported that the population of Foxp3(+)CD25(+)CD4(+) regulatory T cells (Foxp3(+)Treg) was the new parameter for the estimation of host immunity and had correlation with tumor aggressiveness. Here we show the immunoaugumentation effects of Japanese Kampo medicine, Juzen-Taihoto/TJ-48, empirically considered as an immunoaugumentation drug, with investigation of Treg and other immunological parameters.


Peripheral Foxp3(+) Treg populations, CD4/CD8 ratio, and CD57(+) cells (NK cells) populations in advanced pancreatic cancer patients (n = 30, stage VI A and B according to TNM classification) were estimated after TJ-48 administration for 14 days before the anti-cancer therapy.


Treg populations were significantly increased compared to healthy donors (Mann-Whitney U test, P < 0.001). Administration of Juzen-Taihoto/TJ-48 significantly decreased Treg populations (Mann-Whitney U test, P < 0.001) and increased the CD4/CD8 ratio (Mann-Whitney U test, P < 0.01), even though CD57(+) cell populations did not change significantly.


Juzen-Taihoto/TJ-48 increased regulatory activities in T cells through decreasing Foxp3(+) Treg populations in advanced pancreatic cancer patients. This effect can lead to immunoaugumentation for various combination therapies.

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