Hirata Ichiro, Yasumoto Shingo, Toshina Ken, Inoue Takuya, Nishikawa Takashi, Murano Naoko, Murano Mitsuyuki, Wang Fang-Yu, Katsu Ken-ichi
Department of Gastroenterology, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
World J Gastroenterol. 2007 Mar 21;13(11):1666-71. doi: 10.3748/wjg.v13.i11.1666.
To evaluate the effect of pyrrolidine dithio-carbamate (PDTC; an NF-kappaB inhibitor) administered at low (50 mg/kg) and high (100 mg/kg) doses in suppressing colitis in mice with dextran sodium sulfate (DSS)-induced colitis.
Mice were divided into a DSS-untreated group (normal group), DSS-treated control group, DSS+PDTC-treated group I (low-dose group), and DSS+PDTC-treated group II (high-dose group). In each group, the disease activity index score (DAI score), intestinal length, histological score, and the levels of activated NF-kappaB and inflammatory cytokines (IL-1beta and TNF-alpha) in tissue were measured.
The DSS+PDTC-treated group II exhibited suppression of shortening of intestinal length and reduction of DAI score. Activated NF-kappaB level and IL-1beta and TNF-alpha levels were significantly lower in DSS+PDTC-treated group II.
These findings suggest that PDTC is useful for the treatment of ulcerative colitis.
评估低剂量(50毫克/千克)和高剂量(100毫克/千克)的吡咯烷二硫代氨基甲酸盐(PDTC;一种核因子κB抑制剂)对葡聚糖硫酸钠(DSS)诱导的小鼠结肠炎的抑制作用。
将小鼠分为未用DSS处理的组(正常组)、用DSS处理的对照组、DSS + PDTC处理的I组(低剂量组)和DSS + PDTC处理的II组(高剂量组)。测量每组的疾病活动指数评分(DAI评分)、肠长度、组织学评分以及组织中活化的核因子κB和炎性细胞因子(IL - 1β和TNF - α)的水平。
DSS + PDTC处理的II组表现出肠长度缩短受到抑制且DAI评分降低。DSS + PDTC处理的II组中活化的核因子κB水平以及IL - 1β和TNF - α水平显著更低。
这些发现表明PDTC对溃疡性结肠炎的治疗有用。