Anti‐colon cancer activity tracking isolation of peptide from ginseng leaves and potential mechanisms evaluation in vitro and in vivo

2021 ◽  
Author(s):  
Zhuo Liu ◽  
Xiaolei Liu ◽  
Wei Li ◽  
Qiang Luo ◽  
Jie Liu ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Activity Tracking ◽  
Cancer Activity

Bioassay-guided isolation of glycoprotein SPG-56 from sweet potato Zhongshu-1 and its anti-colon cancer activity in vitro and in vivo

2017 ◽  
Vol 35 ◽  
pp. 315-324 ◽  
Author(s):  
Meimei Wang ◽  
Hang Ma ◽  
Cheng Tian ◽  
Shanshan Liu ◽  
Xiaoli Ye ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Sweet Potato ◽  
Cancer Activity

Identification of nitric oxide-releasing derivatives of oleanolic acid as potential anti-colon cancer agents

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19445-19454 ◽  
Author(s):  
Junjie Fu ◽  
Yu Zou ◽  
Zhangjian Huang ◽  
Chang Yan ◽  
Qimeng Zhou ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Colon Cancer ◽  
Signaling Pathways ◽  
Oleanolic Acid ◽  
Nitric Oxide Releasing ◽  
Derivatives Of ◽  
Cancer Activity

NO-releasing hybrid 6 regulates colon cancer-related signaling pathways, exhibiting potent anti-colon cancer activity in vitro and in vivo.

scholarly journals Overcoming Drug Resistance in Colon Cancer by Aptamer-Mediated Targeted Co-Delivery of Drug and siRNA Using Grapefruit-Derived Nanovectors

2018 ◽  
Vol 50 (1) ◽  
pp. 79-91 ◽  
Author(s):  
Wei Yan ◽  
Mingyue Tao ◽  
Baofei Jiang ◽  
Mengchu Yao ◽  
Yali Jun ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Cancer Cells ◽  
Targeted Delivery ◽  
Glycoprotein P ◽  
Anti Cancer ◽  
Lovo Cells ◽  
Si Rna ◽  
Cancer Activity

Background/Aims: Multidrug resistance (MDR) is the most common cause of chemotherapy failure. Upregulation of P-glycoprotein (P-gp) is one of the main mechanisms underlying MDR. Methods: In this study, we developed a targeted drug and small interfering (si)RNA co-delivery system based on specific aptamer-conjugated grapefruit-derived nanovectors (GNVs) that we tested in MDR LoVo colon cancer cells. The internalization of nanovectors in cancer cells was tested by fluorescence microscopy and flow cytometry. The anti-cancer activity in vitro was determined by colony formation and cell apoptosis assays. The biodistribution of nanovectors was analyzed by live imaging and the anti-cancer activity in vivo was observed. Results: GNVs loaded with aptamer increased doxorubicin (Dox) accumulation in MDR LoVo cells, an effect that was abolished by pretreatment with DNase. The LA1 aptamer effectively promoted nanovector internalization into cells at 4°C and increased the targeted delivery of Dox to tumors. Constructs harboring Dox, LA1, and P-gp siRNA more effectively inhibited proliferation and enhanced apoptosis in cultured MDR LoVo cells while exhibiting more potent anti-tumor activity in vivo than free Dox or GNVs loaded with Dox alone or in conjunction with LA1, an effect that was associated with downregulation of P-gp expression. Conclusion: This GNV-based system may be an effective strategy for overcoming MDR in clinical settings.

Autophagy inhibition sensitizes WYE-354-induced anti-colon cancer activity in vitro and in vivo

Tumor Biology ◽  
2016 ◽  
Vol 37 (9) ◽  
pp. 11743-11752 ◽  
Author(s):  
Lijun Wang ◽  
Yun-Rong Zhu ◽  
Shaowei Wang ◽  
Song Zhao
Keyword(s):  
Colon Cancer ◽  
Autophagy Inhibition ◽  
Cancer Activity

scholarly journals Cell-Free Supernatant Odoribacter splanchnicus Isolated From Human Feces Exhibits Anti-colorectal Cancer Activity

2021 ◽  
Vol 12 ◽  
Author(s):  
Byeong Seob Oh ◽  
Won Jung Choi ◽  
Ji-Sun Kim ◽  
Seoung Woo Ryu ◽  
Seung Yeob Yu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
Mouse Model ◽  
Proliferative Activity ◽  
Control Group ◽  
Healthy Individuals ◽  
Gut Microbes ◽  
Cancer Activity

The gut microbiota (GM) has been shown to be closely associated with the development of colorectal cancer (CRC). However, the involvement of GM is CRC has mainly been demonstrated by metagenomic profiling studies showing the compositional difference between the GM of healthy individuals and that of CRC patients and not by directly studying isolated gut microbes. Thus, to discover novel gut microbes involved in CRC, we isolated the GM from the feces of healthy individuals and evaluated its anti-CRC activity in vitro and in vivo. After GM isolation, cell-free supernatants (CFSs) were prepared from the isolated gut microorganisms to efficiently screen a large amount of the GM for anti-proliferative ability in vitro. Our results showed that the CFSs of 21 GM isolates had anti-proliferative activity against human colon cancer HCT 116 cells. Of these 21 GM isolates, GM07 was chosen for additional study because it had the highest anti-cancer activity against mouse colon cancer CT 26 cells in vitro and was further evaluated in a CT 26 allograft mouse model in vivo. GM07 was identified as Odoribacter splanchnicus through phylogenetic analysis based on 16S rRNA gene sequencing. Further investigation determined that the CFS of O. splanchnicus (OsCFS) induced anti-proliferative activity via apoptosis, but not cell cycle arrest. Moreover, GC/MS analysis suggested that the putative active molecule in OsCFS is malic acid. Finally, in the CRC mouse model, peri-tumoral injection of OsCFS significantly decreased CRC formation, compared to the control group. Altogether, these findings will provide valuable information for the discovery of potential probiotic candidates that inhibit CRC.

Large volume spark discharge and plasma jet-technology for generating plasma-oxidized saline targeting colon cancer in vitro and in vivo

2021 ◽  
Vol 129 (5) ◽  
pp. 053301
Author(s):  
Eric Freund ◽  
Lea Miebach ◽  
Ramona Clemen ◽  
Michael Schmidt ◽  
Amanda Heidecke ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Large Volume ◽  
Plasma Jet ◽  
Spark Discharge

scholarly journals Farnesyl dimethyl chromanol targets colon cancer stem cells and prevents colorectal cancer metastasis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Kazim Husain ◽  
Domenico Coppola ◽  
Chung S. Yang ◽  
Mokenge P. Malafa
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
Cancer Metastasis ◽  
Annexin V ◽  
Cancer Cell Growth ◽  
Ki 67 ◽  
Sox2 Expression ◽  
Tumour Metastasis

AbstractThe activation and growth of tumour-initiating cells with stem-like properties in distant organs characterize colorectal cancer (CRC) growth and metastasis. Thus, inhibition of colon cancer stem cell (CCSC) growth holds promise for CRC growth and metastasis prevention. We and others have shown that farnesyl dimethyl chromanol (FDMC) inhibits cancer cell growth and induces apoptosis in vitro and in vivo. We provide the first demonstration that FDMC inhibits CCSC viability, survival, self-renewal (spheroid formation), pluripotent transcription factors (Nanog, Oct4, and Sox2) expression, organoids formation, and Wnt/β-catenin signalling, as evidenced by comparisons with vehicle-treated controls. In addition, FDMC inhibits CCSC migration, invasion, inflammation (NF-kB), angiogenesis (vascular endothelial growth factor, VEGF), and metastasis (MMP9), which are critical tumour metastasis processes. Moreover, FDMC induced apoptosis (TUNEL, Annexin V, cleaved caspase 3, and cleaved PARP) in CCSCs and CCSC-derived spheroids and organoids. Finally, in an orthotopic (cecum-injected CCSCs) xenograft metastasis model, we show that FDMC significantly retards CCSC-derived tumour growth (Ki-67); inhibits inflammation (NF-kB), angiogenesis (VEGF and CD31), and β-catenin signalling; and induces apoptosis (cleaved PARP) in tumour tissues and inhibits liver metastasis. In summary, our results demonstrate that FDMC inhibits the CCSC metastatic phenotype and thereby supports investigating its ability to prevent CRC metastases.

scholarly journals Targeting a Lipid Desaturation Enzyme, SCD1, Selectively Eliminates Colon Cancer Stem Cells through the Suppression of Wnt and NOTCH Signaling

Cells ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 106
Author(s):  
Yeongji Yu ◽  
Hyejin Kim ◽  
SeokGyeong Choi ◽  
JinSuh Yu ◽  
Joo Yeon Lee ◽  
...  
Keyword(s):  
Colon Cancer ◽  
Notch Signaling ◽  
Cultured Cells ◽  
Pcr Analysis ◽  
Marker Genes ◽  
Dependent Manner ◽  
Lipid Desaturation ◽  
Novel Target

The elimination of the cancer stem cell (CSC) population may be required to achieve better outcomes of cancer therapy. We evaluated stearoyl-CoA desaturase 1 (SCD1) as a novel target for CSC-selective elimination in colon cancer. CSCs expressed more SCD1 than bulk cultured cells (BCCs), and blocking SCD1 expression or function revealed an essential role for SCD1 in the survival of CSCs, but not BCCs. The CSC potential selectively decreased after treatment with the SCD1 inhibitor in vitro and in vivo. The CSC-selective suppression was mediated through the induction of apoptosis. The mechanism leading to selective CSC death was investigated by performing a quantitative RT-PCR analysis of 14 CSC-specific signaling and marker genes after 24 and 48 h of treatment with two concentrations of an inhibitor. The decrease in the expression of Notch1 and AXIN2 preceded changes in the expression of all other genes, at 24 h of treatment in a dose-dependent manner, followed by the downregulation of most Wnt- and NOTCH-signaling genes. Collectively, we showed that not only Wnt but also NOTCH signaling is a primary target of suppression by SCD1 inhibition in CSCs, suggesting the possibility of targeting SCD1 against colon cancer in clinical settings.

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