scholarly journals PHYTOPREVENTIVE EFFECT OF BUAH MERAH (Pandanus conoideus Lam.) OIL IN COLITIS-ASSOCIATED CARCINOGENESIS

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
Oeij Anindita Adhika

Colorectal cancer has provided a paradigm for the connection between inflammation and cancer. Modulation of intracellular signaling involved in chronic inflammatory response by anti-inflammatory agents represents an important strategy in molecular target-based chemoprevention. The aim of this research is to study the effect of buah merah oil on  IL-6  serum level and histopathology of colon in colitis-associated cancer (CAC) mice model. BALB/c mice were randomly divided into four groups. The negative control and buah merah control were given aquabidest and buah merah, respectively, without CAC induction. The AOM/DSS control and buah merah treatment were given azoxymethane (AOM) followed by dextran sulfate sodium (DSS) to induce CAC. The AOM/DSS control was given aquabidest while the buah merah treatment was given buah merah. Data were analyzed by One-Way ANOVA continued with Tukey-HSD. The result showed that IL-6 level in mice administrated with buah merah was significantly lower than the AOM/DSS control (p=0.000). Histopathological analysis scores  of colon were analyzed by Kruskal-Wallis continued with Mann-Whitney. The result showed that histopathological analysis score in buah merah treatment was significantly lower than in the AOM/DSS control (p=0.002). Taken together, buah merah oil lowered IL-6 level and histopathological analysis score of colon in CAC mice model. Keywords: CAC, buah merah oil,  IL-6 level, histopathological  analysis scores of  colon

Author(s):  
Kusmardi Kusmardi ◽  
Arif Ramadhan Tamzir ◽  
Santi Widiasari ◽  
Ari Estuningtyas

Objective: The incidence of small intestine cancer (SIC) is rising despite available preventive measures. Kaempferol and quercetin are a potential chemopreventive agent for SIC, but in vivo findings are inconclusive. We aim to study the effects of kaempferol and quercetin on colitis-associated small intestine carcinogenesis in mice.Methods: Suppression effect was tested using mice divided into 6 groups of treatment, i.e.; normal (N) group, negative control (NC), leaf extract (medium dose [MD]) dose 12.5 and 25 mg/kg body weight (BW), leaf extract chitosan and nanoparticle of mahkota dewa (NPMD) dose 6.25 and 12.5 mg/kg BW. Dextran sulfate sodium induction of 1% w/v was administered through drinking water for 6 weeks of treatment. The suppression effect was observed histopathologically by counting the mitotic cells and hyperplasia cells of the crypt of small intestine with hematoxylin-eosin staining.Results: Mitosis cells mean of NC group was not significant difference either with MD 12.5 (p=0.394) or MD 6.5 (p=0.310). However, mitosis cell mean appears to be lower in the NPMD 12.5 (p=0.09) and NPMD 6.25 (p=0.05) groups than the NC group. There was a significant difference among the mean of hyperplasia NC group and MD and also NPMD group. Significant difference also can be showed between MD 12.5 and MD 25 (p=0.026), and between NPMD 6.25 and NPMD 12.5 (p=0.002), and between MD 12.5 and NPMD 12.5 (p=0.002).Conclusion: Our results demonstrate suppression of hyperplasia small intestine by either nanoparticle or extract of Phaleria macrocarpa extracts. The suppression of mitosis was showed by administration of nanoparticle.


2020 ◽  
Vol 11 ◽  
Author(s):  
Jia-Rong Huang ◽  
Sheng-Te Wang ◽  
Meng-Ning Wei ◽  
Kun Liu ◽  
Jing-Wen Fu ◽  
...  

Colorectal cancer is one of the most common and lethal cancers in the world. An important causative factor of colorectal cancer is ulcerative colitis. In this study, we investigated the therapeutic effects of piperlongumine (PL) on the dextran sulfate sodium (DSS)-induced acute colitis and azoxymethane (AOM)/DSS-induced colorectal cancer mouse models. Our results showed that PL could inhibit the inflammation of DSS-induced mouse colitis and reduce the number of large neoplasms (diameter >2 mm) of AOM/DSS-induced mouse colorectal cancer by downregulation of proinflammatory cytokines cyclooxygenase-2 and interleukin-6 and epithelial-mesenchymal transition-related factors, β-catenin, and snail expressions, but fail to improve the colitis symptoms and to decrease the incidence of colonic neoplasms and the number of small neoplasms (diameter <2 mm). These data suggested that PL might be an effective agent in treating colitis and colorectal cancer.


2020 ◽  
Vol 158 (6) ◽  
pp. S-276
Author(s):  
Seok-Jae Ko ◽  
Hyejin Joo ◽  
Youngmin Bu ◽  
Beom-Joon Lee ◽  
Soo-Ho Cho ◽  
...  

2021 ◽  
Vol 7 (10) ◽  
pp. 99446-99464
Author(s):  
Flávia Barbosa Pinto ◽  
Cinthia Vidal Monteiro da Silva Couto ◽  
Anderson Barros Archanjo ◽  
Mayara Mota Oliveira ◽  
Joaquim Gasparini Dos Santos ◽  
...  

The objective was to report the injuries on liver and kidney promoted by experimental colorectal carcinogenesis induction in rats and evaluate the effect of supplementation with Euterpe edulis M. pulp products on resolution of this injuries. Colorectal carcinogenesis with 1,2-dimethylhydrazine was induced in young male rats, allocated into: C - induced to carcinogenesis; CJ - induced to carcinogenesis and supplemented with juçara fruit pulp; and CE - induced to carcinogenesis and supplemented with juçara fruit lyophilized extract. Nine animals were a negative control. Supplementation occurred three times a week, totaling 54 days of administration with 1 mg of cyanidin-3-glycoside per kilogram live weight. The hepatic and renal histopathological injuries were assessed at 10 and 23 weeks. In liver, at 10-week biliary hyperplasia was more evident in colorectal cancer induced groups compared to N group (p = 0.0230), as well as megalocytosis (p = 0.0269), and juçara fruit-based product do not promote cytoprotection. At 23-week biliary hyperplasia continued present, and liver necrosis was evident in C group and CJ group. Hepatic degeneration was greater in C group, and megalocytosis was evident in the cancer-induced groups, without cytoprotection by juçara fruit-based product. In kidney, at 23-week, renal congestion was more evident in CJ group, and tubular degeneration in C and CE groups. Important hepatic and renal injuries were observed in rats induced to colorectal cancer and the supplementation with juçara fruit-based product, in the dose used, did not interfere in the prevention and resolution of these injuries, mainly with the chronic use.


Cancers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 576
Author(s):  
Jinsoo Song ◽  
Sujeong Park ◽  
Jinjoo Oh ◽  
Deokha Kim ◽  
Ji Hyun Ryu ◽  
...  

Studies have suggested that dysregulation of peroxisomal lipid metabolism might play an important role in colorectal cancer (CRC) development. Here, we found that KrasG12D-driven CRC tumors demonstrate dysfunctional peroxisomal β-oxidation and identified Nudt7 (peroxisomal coenzyme A diphosphatase NUDT7) as one of responsible peroxisomal genes. In KrasG12D-driven CRC tumors, the expression level of Nudt7 was significantly decreased. Treatment of azoxymethane/dextran sulfate sodium (AOM/DSS) into Nudt7 knockout (Nudt7−/−) mice significantly induced lipid accumulation and the expression levels of CRC-related genes whereas xenografting of Nudt7-overexpressed LS-174T cells into mice significantly reduced lipid accumulation and the expression levels of CRC-related genes. Ingenuity pathway analysis of microarray using the colon of Nudt7−/− and Nudt7+/+ mice treated with AOM/DSS suggested Wnt signaling as one of activated signaling pathways in Nudt7−/− colons. Upregulated levels of β-catenin were observed in the colons of KrasG12D and AOM/DSS-treated Nudt7−/− mice and downstream targets of β-catenin such as Myc, Ccdn1, and Nos2, were also significantly increased in the colon of Nudt7−/− mice. We observed an increased level of palmitic acid in the colon of Nudt7−/− mice and attachment of palmitic acid-conjugated chitosan patch into the colon of mice induced the expression levels of β-catenin and CRC-related genes. Overall, our data reveal a novel role for peroxisomal NUDT7 in KrasG12D-driven CRC development.


2020 ◽  
Vol 182 ◽  
pp. 114279
Author(s):  
Chin-Hee Song ◽  
Nayoung Kim ◽  
Ryoung Hee Nam ◽  
Soo In Choi ◽  
Joo Hee Son ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document