Shi Ni, Riedl Kenneth M, Schwartz Steven J, Zhang Xiaoli, Clinton Steven K, Chen Tong
Division of Medical Oncology, Department of Internal Medicine, 410 West 12 Ave.
The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University, 460 West 10 Ave., Columbus, Ohio 43210, USA.
J Funct Foods. 2016 Dec;27:84-94. doi: 10.1016/j.jff.2016.08.044. Epub 2016 Sep 16.
The objective of this study was to compare the efficacy and mechanism of lyophilized black raspberries (BRB) versus the combination of celecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, and '-1,4-phenylene-(1,2-ethanediyl)-isothiourea (PBIT), a selective inducible nitric oxide synthase (iNOS) inhibitor in inhibition of carcinogen-induced esophageal squamous cell carcinoma in rats. Our data indicated that tumor multiplicity and histologic grade of esophageal precancerous lesions were reduced in animals fed BRB compared to those fed celecoxib + PBIT. The mechanistic studies showed that BRB and its major anthocyanin suppressed cell proliferation and oncogenic signaling. Our findings demonstrated that dietary BRB is superior to the combination of two pharmaceutical drugs in esophageal cancer prevention. These observations suggest the potential value of translational studies using BRB food products for esophageal cancer prevention in humans, particularly those with high-risk premalignant lesions.
本研究的目的是比较冻干黑树莓(BRB)与选择性环氧化酶-2(COX-2)抑制剂塞来昔布和选择性诱导型一氧化氮合酶(iNOS)抑制剂“-1,4-亚苯基-(1,2-乙二基)-异硫脲(PBIT)”联合用药在抑制致癌物诱导的大鼠食管鳞状细胞癌方面的疗效和作用机制。我们的数据表明,与喂食塞来昔布+PBIT的动物相比,喂食BRB的动物食管癌前病变的肿瘤多发性和组织学分级有所降低。机制研究表明,BRB及其主要花青素可抑制细胞增殖和致癌信号传导。我们的研究结果表明,在预防食管癌方面,食用BRB优于两种药物联合使用。这些观察结果表明,利用BRB食品进行食管癌预防的转化研究具有潜在价值,特别是对于那些具有高危癌前病变的人群。