Filtered By:
Cancer: Colorectal Cancer
Therapy: Stem Cell Therapy

This page shows you your search results in order of date. This is page number 5.

Order by Relevance | Date

Total 71 results found since Jan 2013.

Down-regulation of ALDH1A3, CD44 or MDR1 sensitizes resistant cancer cells to FAK autophosphorylation inhibitor Y15
Conclusions This report clearly demonstrates the mechanism of resistance to FAK autophosphorylation inhibitor and the mechanism to overcome it that is important for developing FAK-targeted therapy approaches.
Source: Journal of Cancer Research and Clinical Oncology - February 5, 2015 Category: Cancer & Oncology Source Type: research

DCLK1 is a broadly dysregulated target against epithelial-mesenchymal transition, focal adhesion, and stemness in clear cell renal carcinoma.
Authors: Weygant N, Qu D, May R, Tierney RM, Berry WL, Zhao L, Agarwal S, Chandrakesan P, Chinthalapally HR, Murphy NT, Li JD, Sureban SM, Schlosser MJ, Tomasek JJ, Houchen CW Abstract Renal clear cell carcinoma (RCC) is the most common type of kidney cancer and the 8th most common cancer overall in the US. RCC survival rates drop precipitously with regional and distant spread and recent studies have demonstrated that RCC presents an epithelial-mesenchymal transition (EMT) phenotype linked to increased recurrence and decreased survival. EMT is a key characteristic of tumor stem cells (TSCs) along with chemo-resista...
Source: Oncotarget - January 27, 2015 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

The effectiveness of an anti-human IL-6 receptor monoclonal antibody combined with chemotherapy to target colon cancer stem-like cells.
Abstract Recent studies have demonstrated that cancer stem cells (CSCs) can initiate and sustain tumor growth and exhibit resistance to clinical cytotoxic therapies. Therefore, CSCs represent the main target of anticancer therapy. Interleukin-6 (IL-6) promotes cellular proliferation and drug resistance in colorectal cancer, and its serum levels correlate with patient survival. Therefore, IL-6 and its downstream signaling molecule the signal transducer and activator of transcription-3 (STAT3) represent potential molecular targets. In the present study, we investigated the effects of IL-6 and its downstream signalin...
Source: International Journal of Oncology - January 26, 2015 Category: Cancer & Oncology Authors: Ying J, Tsujii M, Kondo J, Hayashi Y, Kato M, Akasaka T, Inoue T, Shiraishi E, Inoue T, Hiyama S, Tsujii Y, Maekawa A, Kawai S, Fujinaga T, Araki M, Shinzaki S, Watabe K, Nishida T, Iijima H, Takehara T Tags: Int J Oncol Source Type: research

Abstract 3903: A sub-set of DCLK1+ve colon cancer stem cells (CSCs) survive curcumin induced autophagy, while co-treatment with curcumin +DCLK1-siRNA eliminates CSCs: Role of long and short isofoms of DCLK1
Conclusion. Our studies strongly suggest that, 1) DCLK1 represents a functional protein for colon cancers, 2) combination of curcumin+DCLK1-siRNA may target and eradicate colon cancer stem cells., and 3) identifying small molecules that inhibit expression of S-isoform may allow to specifically target cancer stem cells, while sparing normal stem cells for cancer treatment purposes. This work was supported by NIH Granst to PS (R01CA09795909 and RO1CA0975909-S1). Citation Format: Shubhashish Sarkar, Malaney O'Connell, Carla, Kantara, Pomila Singh. A sub-set of DCLK1+ve colon cancer stem cells (CSCs) survive curcumin induced a...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Sarkar, S., O'Connell, M., Kantara, C., Singh, P. Tags: Tumor Biology Source Type: research

Abstract 339: Inhibition of NANOG/NANOGP8 downregulates MCL-1 in colorectal cancer (CRC) cells, enhances the efficacy of BH3 mimetics and inhibits clonogenicity
Combining lentiviral (LV) delivered shRNA against NANOG (shNG-1) or NANOGP8 (shNp8-1) with BH3 mimetics (ABT-737 and ABT-199) was undertaken to determine whether inhibition of NANOG/NANOGP8 enhances the cytotoxic effect of these BH3 mimetics in Colorectal Cancer (CRC) cells. NANOG is a key transcription factor important for both pluripotency in embryonic stem cells and malignant transformation and progression of colorectal carcinoma (CRC). Inhibition of NANOG or its paralog NANOGP8 reduces the proliferation, stemness and tumorigenicity of CRC cells. The cytotoxic potential of ABT-737 or ABT-199, as single agents, was teste...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Mattoo, A. R., Zhang, J., Espinoza, L. A., Thorgeirsson, S. S., Jessup, J. M. Tags: Molecular and Cellular Biology Source Type: research

Abstract 1148: Epithelial to mesenchymal transition might be induced via CD44 isoform switch in colorectal cancer
We examined the association between the EMT status and CD44 isoform switch, and analyzed the correlation with clinicopathological factors and prognosis. Finally, we evaluated the effect of CD44 knockdown by siRNA in CRC cell lines by measuring the proliferation, migration and invasion ability. Results: 1. The CRC cell lines were classified into 8 epithelial, 4 mesenchymal and 2 intermediate type. Of these cell lines, CD44s was highly expressed in mesenchymal type cell lines, whereas, CD44v9 was highly expressed in epithelial type cell lines. 2. The 150 CRC patients were divided into 115 epithelial group and 35 mesenchymal ...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Mashita, N., Yamada, S., Iwata, N., Kanda, M., Kobayashi, D., Tanaka, C., Fujii, T., Nakayama, G., Sugimoto, H., Koike, M., Nomoto, S., Fujiwara, M., Kodera, Y. Tags: Tumor Biology Source Type: research

Abstract SY43-03: Screening for triple negative breast cancer vulnerabilities
There is no targeted therapy for triple negative breast cancers (TNBC), which have the worst prognosis of human breast cancers. TNBCs are prone to relapse and metastasize after cytotoxic drug treatment. This group of cancers, defined by low or absent expression of estrogen, progesterone and Her2 receptors, are heterogeneous in genetic, epigenetic and phenotypic features, making it difficult to identify specific drug targets suitable for this group of cancers as a whole. About half or more of TNBCs have an epithelial phenotype (classified based on gene expression profiling as basal-like or basal-A) and a large minority of t...
Source: Cancer Research - September 30, 2014 Category: Cancer & Oncology Authors: Petrocca, F., Altschuler, G., Tan, S. M., Mendillo, M. L., Yan, H., Jerry, D. J., Kung, A. L., Hide, W., Ince, T. A., Lieberman, J. Tags: Experimental and Molecular Therapeutics Source Type: research

Small molecule kinase inhibitor LRRK2-IN-1 demonstrates potent activity against colorectal and pancreatic cancer through inhibition of doublecortin-like kinase 1
Conclusions: Given DCLK1's tumor stem cell marker status, a strong understanding of its biological role and interactions in gastrointestinal tumors may lead to discoveries that improve patient outcomes. The results of this study suggest that small molecule inhibitors of DCLK1 kinase should be further investigated as they may hold promise as anti-tumor stem cell drugs.
Source: BioMed Central - May 6, 2014 Category: Journals (General) Authors: Nathaniel WeygantDongfeng QuWilliam L BerryRandal MayParthasarathy ChandrakesanDaniel B OwenSripathi M SurebanNaushad AliRalf JanknechtCourtney W Houchen Source Type: research

Sa1959 Curcumin Induces Autophagic Survival of DCLK1+VE Colon Cancer Stem Cells (CSCs), While Co-Treatment With Curcumin and DCLK1-siRNA Eliminates CSCS: Role of Long and Short Isofoms of DCLK1
Source: Gastroenterology - May 1, 2014 Category: Gastroenterology Authors: Malaney R. O'Connell, Shubhashish Sarkar, Carla Kantara, Pomila Singh Source Type: research

Effects of DCLK1-siRNA{+/-}Curcumin on Cancer Stem Cells
Curcumin is known to induce apoptosis of cancer cells by different mechanisms, but its effects on cancer stem cells (CSC) have been less investigated. Here, we report that curcumin promotes the survival of DCLK1-positive colon CSCs, potentially confounding application of its anticancer properties. At optimal concentrations, curcumin greatly reduced expression levels of stem cell markers (DCLK1/CD44/ALDHA1/Lgr5/Nanog) in three-dimensional spheroid cultures and tumor xenografts derived from colon cancer cells. However, curcumin unexpectedly induced proliferation and autophagic survival of a subset of DCLK1-positive CSCs. Sph...
Source: Cancer Research - April 30, 2014 Category: Cancer & Oncology Authors: Kantara, C., O'Connell, M., Sarkar, S., Moya, S., Ullrich, R., Singh, P. Tags: Prevention and Epidemiology Source Type: research

Interaction of 14-3-3σ with KCMF1 suppresses the proliferation and colony formation of human colon cancer stem cells.
CONCLUSION: Genes of the proteins that interacted with 14-3-3σ were successfully screened from a HeLa cDNA library. KCMF1 and 14-3-3σ protein may affect the proliferation and colony formation of human colon cancer stem cells. PMID: 23840115 [PubMed - in process]
Source: World Journal of Gastroenterology : WJG - June 28, 2013 Category: Gastroenterology Authors: Zou J, Mi L, Yu XF, Dong J Tags: World J Gastroenterol Source Type: research