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Kwiatkowski E, Suman S, Kallakury BVS, Datta K, Fornace AJ, Kumar S. Expression of Stem Cell Markers in High-LET Space Radiation-Induced Intestinal Tumors in Apc1638N/+ Mouse Intestine. Cancers (Basel) 2023; 15:4240. [PMID: 37686516 PMCID: PMC10486545 DOI: 10.3390/cancers15174240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/10/2023] Open
Abstract
Estimation of cancer risk among astronauts planning to undertake future deep-space missions requires understanding the quantitative and qualitative differences in radiogenic cancers after low- and high-LET radiation exposures. Previously, we reported a multifold higher RBE for high-LET radiation-induced gastrointestinal (GI) tumorigenesis in Apc1638N/+ mice. Using the same model system, i.e., Apc1638N/+ mice, here, we report qualitative differences in the cellular phenotype of low- and high-LET radiation-induced GI tumors. Stem cell (SC) phenotypes were identified using BMI1, ALDH1, CD133, DCLK1, MSI1, and LGR5 markers in low (γ-rays)- and high (56Fe)-LET radiation-induced and spontaneous tumors. We also assessed the expression of these markers in the adjacent normal mucosa. All six of these putative SC markers were shown to be overexpressed in tumors compared to the adjacent normal intestinal tissue. A differential SC phenotype for spontaneous and radiogenic intestinal tumors in Apc1638N/+ mice was observed, where the ALDH1, BMI1, CD133, MSI1, and DCLK1 expressing cells were increased, while LGR5 expressing cells were decreased in 56Fe-induced tumors compared to γ-ray-induced and spontaneous tumors. Furthermore, higher β-catenin activation (marked by nuclear localization) was observed in 56Fe-induced tumors compared to γ and spontaneous tumors. Since differential tumor cell phenotype along with activated β-catenin may very well affect malignant progression, our findings are relevant to understanding the higher carcinogenic risk of high-LET radiation. This study has implications for the assessment of GI-cancer risk among astronauts, as well as for the estimation of secondary cancer risk among patients receiving hadron therapy, considering that our results indicate increased stemness properties after radiation.
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Affiliation(s)
- Elaina Kwiatkowski
- Department of Biology, Georgetown University, Washington, DC 20057, USA
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Shubhankar Suman
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | | | - Kamal Datta
- Department of Biochemistry and Molecular & Cellular Biology, Georgetown University Medical Center, Washington, DC 20057, USA
| | | | - Santosh Kumar
- Department of Oncology, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
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Mare M, Colarossi L, Veschi V, Turdo A, Giuffrida D, Memeo L, Stassi G, Colarossi C. Cancer Stem Cell Biomarkers Predictive of Radiotherapy Response in Rectal Cancer: A Systematic Review. Genes (Basel) 2021; 12:genes12101502. [PMID: 34680897 PMCID: PMC8535834 DOI: 10.3390/genes12101502] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Rectal cancer (RC) is one of the most commonly diagnosed and particularly challenging tumours to treat due to its location in the pelvis and close proximity to critical genitourinary organs. Radiotherapy (RT) is recognised as a key component of therapeutic strategy to treat RC, promoting the downsizing and downstaging of large RCs in neoadjuvant settings, although its therapeutic effect is limited due to radioresistance. Evidence from experimental and clinical studies indicates that the likelihood of achieving local tumour control by RT depends on the complete eradication of cancer stem cells (CSC), a minority subset of tumour cells with stemness properties. METHODS A systematic literature review was conducted by querying two scientific databases (Pubmed and Scopus). The search was restricted to papers published from 2009 to 2021. RESULTS After assessing the quality and the risk of bias, a total of 11 studies were selected as they mainly focused on biomarkers predictive of RT-response in CSCs isolated from patients affected by RC. Specifically these studies showed that elevated levels of CD133, CD44, ALDH1, Lgr5 and G9a are associated with RT-resistance and poor prognosis. CONCLUSIONS This review aimed to provide an overview of the current scenario of in vitro and in vivo studies evaluating the biomarkers predictive of RT-response in CSCs derived from RC patients.
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Affiliation(s)
- Marzia Mare
- Medical Oncology Unit, Mediterranean Institute of Oncology, 95029 Viagrande, Italy; (M.M.); (D.G.)
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, 98122 Messina, Italy
| | - Lorenzo Colarossi
- Pathology Unit, Mediterranean Institute of Oncology, 95029 Viagrande, Italy; (L.C.); (L.M.); (C.C.)
| | - Veronica Veschi
- Department of Surgical Oncological and Stomatological Sciences (DICHIRONS), University of Palermo, 90127 Palermo, Italy;
| | - Alice Turdo
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy;
| | - Dario Giuffrida
- Medical Oncology Unit, Mediterranean Institute of Oncology, 95029 Viagrande, Italy; (M.M.); (D.G.)
| | - Lorenzo Memeo
- Pathology Unit, Mediterranean Institute of Oncology, 95029 Viagrande, Italy; (L.C.); (L.M.); (C.C.)
| | - Giorgio Stassi
- Department of Surgical Oncological and Stomatological Sciences (DICHIRONS), University of Palermo, 90127 Palermo, Italy;
- Correspondence: ; Tel.: +39-091-2389-0813
| | - Cristina Colarossi
- Pathology Unit, Mediterranean Institute of Oncology, 95029 Viagrande, Italy; (L.C.); (L.M.); (C.C.)
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Fayi MA, Alamri A, Rajagopalan P. IOX-101 Reverses Drug Resistance Through Suppression of Akt/mTOR/NF-κB Signaling in Cancer Stem Cell-Like, Sphere-Forming NSCLC Cell. Oncol Res 2019; 28:177-189. [PMID: 31771696 PMCID: PMC7851539 DOI: 10.3727/096504019x15746768080428] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Drug discovery research to fight lung cancer is incessantly challenged by drug resistance. In this study, we used drug-resistant lung cancer stem like cells (A549-CS) to compare the efficacy of standard drugs like cisplatin (DDP) and gemcitabine (GEM) with a novel arylidene derivative IOX-101. A549-CS was derived from regular A549 cells by growing in special media. Resistance proteins were detected using Western blotting. Cell proliferations were assessed by MTT assay. Cytokine release was enumerated using enzyme-linked immunosorbent assay. The effect of drugs on apoptosis and cell cycle was studied with flow cytometry protocols. Apoptosis-related proteins, caspases, and other signaling protein expressions like Akt and mammalian target of rapamycin (mTOR) were assessed by Western blotting. Expression of CD133 and nuclear factor κB (NF-κB) phosphorylation was assessed using flow cytometry. A549-CS showed significant increase in CD133 expression in comparison with A549 cells. Expression of resistance markers like MDR-1, lung resistance protein (LRP), and GST-II were detected in A549-CS. While DDP and GEM had relatively lower efficacy in A549-CS, IOX-101 inhibited the proliferation of both A549 and A549-CS with GI50 values of 268 and 296.5 nM, respectively. IOX-101 increased the sub-G0 phase in the cell cycle of A549-CS and increased the percentage of apoptotic cells. Western blot analysis revealed activation of caspases, Bax, and reduction in Bcl-2 levels. Further mechanistic investigation revealed IOX-101 to deactivate Akt, mTOR, and NF-κB signaling in A549-CS cells. Additionally, IOX-101 treatment to A549-CS also reversed MDR-1 and LRP expressions. Collectively, our results demonstrate efficacy of IOX-101 in A549-CS, which was resistant against the tested standard drugs. The activity was mediated by suppressing Akt/mTOR/NF-κB signaling.
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Affiliation(s)
- Majed Al Fayi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid UniversityAbhaSaudi Arabia
| | - Ahmad Alamri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid UniversityAbhaSaudi Arabia
| | - Prasanna Rajagopalan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid UniversityAbhaSaudi Arabia
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Takiyama A, Tanaka T, Kazama S, Nagata H, Kawai K, Hata K, Otani K, Nishikawa T, Sasaki K, Kaneko M, Emoto S, Murono K, Takiyama H, Nozawa H. DCLK1 Expression in Colorectal Polyps Increases with the Severity of Dysplasia. ACTA ACUST UNITED AC 2018; 32:365-371. [PMID: 29475922 DOI: 10.21873/invivo.11247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND The expression of doublecortin-like kinase 1 (DCLK1) has been investigated in cancer; however not in precancerous adenomatous polyps. MATERIALS AND METHODS Immunohistological expression of DCLK1 was evaluated in various grades of adenomas, cancerous polyps, and hyperplastic polyps in resected human tissue specimens. RESULTS Ninety-two specimens were positive for DCLK1 and 134 were negative. Cancerous polyps showed a high DCLK1 positivity rate compared to adenomas (68.4% vs. 36.8%; p<0.01). The rate of DCLK1 positivity was not significantly different among the three grades of adenomas (mild, moderate, and severe). DCLK1 was highly positive in advanced adenomas than low risk adenomas (49.6% vs. 29.3%; p<0.01). CONCLUSION The expression of DCLK1 was found in low-grade adenomas and increased with worsening severity of dysplasia. DCLK1 expression was highly observed in advanced adenomas, which had a clinically higher malignant potential.
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Affiliation(s)
- Aki Takiyama
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Toshiaki Tanaka
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Shinsuke Kazama
- Division of Gastroenterological Surgery, Saitama Cancer Center, Saitama, Japan
| | - Hiroshi Nagata
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Kazushige Kawai
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Keisuke Hata
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Kensuke Otani
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Takeshi Nishikawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Kazuhito Sasaki
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Manabu Kaneko
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Shigenobu Emoto
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | - Koji Murono
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
| | | | - Hiroaki Nozawa
- Department of Surgical Oncology, The University of Tokyo, Tokyo, Japan
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Djirackor L, Shakir D, Kalirai H, Petrovski G, Coupland SE. Nestin expression in primary and metastatic uveal melanoma - possible biomarker for high-risk uveal melanoma. Acta Ophthalmol 2018; 96:503-509. [PMID: 29338117 DOI: 10.1111/aos.13645] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 10/01/2017] [Indexed: 12/31/2022]
Abstract
PURPOSE Nestin, a member of the intermediate filament protein family, has been described as a putative cancer stem cell marker (CSC) in uveal melanoma and poor prognostic factor in a variety of tumours, including cutaneous melanoma. In this study, we examined the expression of nestin in primary (PUM) and metastatic uveal melanoma (MUM) samples, and correlated the findings with histological, clinical and survival data. METHODS Nestin expression was assessed by immunohistochemistry in 141 PUM and 26 MUM samples; 11 PUM cases were matched with their corresponding metastases. The percentage of tumour cells expressing nestin was scored by three independent observers. Statistical analysis of all data was performed with SPSS. RESULTS Nestin expression was identified in both the cytoplasm and membrane of UM cells. Increased expression of nestin in PUM samples was associated with known poor prognostic parameters, including epithelioid cell morphology (p < 0.001), closed loops (p = 0.001), higher mitotic count (p < 0.001), monosomy 3 (p = 0.007) and chromosome 8q gain (p < 0.001). Primary uveal melanoma (PUM) with nestin expression levels above a cut-off value of 10% [as determined by receiver operating characteristic (ROC) analysis] was associated with a significantly reduced survival time (Log-rank, p = 0.002). In MUM, a higher percentage of nestin-positive tumour cells combined with poor prognostic markers in the PUM led to a shorter survival time following the development of metastases. CONCLUSION In conclusion, increased nestin expression in PUM is a predictor of a tumour phenotype associated with metastatic progression and reduced survival time at onset of metastasis.
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Affiliation(s)
- Luna Djirackor
- Department of Molecular and Clinical Cancer Medicine; Institute of Translational Medicine; University of Liverpool; Liverpool UK
| | - Dilem Shakir
- Department of Molecular and Clinical Cancer Medicine; Institute of Translational Medicine; University of Liverpool; Liverpool UK
| | - Helen Kalirai
- Department of Molecular and Clinical Cancer Medicine; Institute of Translational Medicine; University of Liverpool; Liverpool UK
| | - Goran Petrovski
- Stem Cells and Eye Research Laboratory; Department of Ophthalmology; Faculty of Medicine; Albert Szent-Gyorgyi Clinical Center; University of Szeged; Szeged Hungary
- Centre for Eye Research; Department of Ophthalmology; Oslo University Hospital and University of Oslo; Oslo Norway
| | - Sarah E. Coupland
- Department of Molecular and Clinical Cancer Medicine; Institute of Translational Medicine; University of Liverpool; Liverpool UK
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Karbanová J, Lorico A, Bornhäuser M, Corbeil D, Fargeas CA. Prominin-1/CD133: Lipid Raft Association, Detergent Resistance, and Immunodetection. Stem Cells Transl Med 2017; 7:155-160. [PMID: 29271118 PMCID: PMC5788878 DOI: 10.1002/sctm.17-0223] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 11/17/2017] [Indexed: 01/17/2023] Open
Abstract
The cell surface antigen prominin‐1 (alias CD133) has gained enormous interest in the past 2 decades and given rise to debates as to its utility as a biological stem and cancer stem cell marker. Important and yet often overlooked knowledge that is pertinent to its physiological function has been generated in other systems given its more general expression beyond primitive cells. This article briefly discusses the importance of particular biochemical features of CD133 with relation to its association with membrane microdomains (lipid rafts) and proper immunodetection. It also draws attention toward the adequate use of detergents and caveats that may apply to the interpretation of the results generated. Stem Cells Translational Medicine2018;7:155–160
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Affiliation(s)
- Jana Karbanová
- Tissue Engineering Laboratories, Biotechnology Center (BIOTEC), Dresden, Germany.,DFG Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
| | - Aurelio Lorico
- Department of Pathology, College of Medicine, Roseman University of Health Sciences, Las Vegas, Nevada, USA
| | - Martin Bornhäuser
- DFG Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany.,Medical Clinic and Polyclinic I, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Denis Corbeil
- Tissue Engineering Laboratories, Biotechnology Center (BIOTEC), Dresden, Germany.,DFG Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
| | - Christine A Fargeas
- Tissue Engineering Laboratories, Biotechnology Center (BIOTEC), Dresden, Germany
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7
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Harada Y, Kazama S, Morikawa T, Murono K, Yasuda K, Otani K, Nishikawa T, Tanaka T, Kiyomatsu T, Kawai K, Hata K, Nozawa H, Yamaguchi H, Ishihara S, Watanabe T. Leucine-rich repeat-containing G protein-coupled receptor 5 and CD133 expression is associated with tumor progression and resistance to preoperative chemoradiotherapy in low rectal cancer. Oncol Lett 2017; 14:7791-7798. [PMID: 29250176 PMCID: PMC5727605 DOI: 10.3892/ol.2017.7207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Accepted: 10/03/2017] [Indexed: 12/15/2022] Open
Abstract
Preoperative chemoradiotherapy has been performed as a standard therapy for advanced low rectal cancer. Cancer stem cells (CSCs) have been reported to contribute to resistance to treatment and patient prognosis. Leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5) and cluster of differentiation (CD133) are putative markers for CSCs. However, their prognostic ability remains unknown, and evaluation of a single marker can be insufficient due to the heterogeneity of cancer. LGR5 and CD133 expression was immunohistochemically evaluated in surgical specimens of 56 patients who received curative resection following chemoradiotherapy for advanced low rectal cancer. In addition, the correlations between their expression levels, and clinicopathological features and patient prognosis were asessed. LGR5 expression was significantly correlated with lymphatic invasion, lymph node metastasis, and tumor node metastasic (TNM) stage. CD133 expression was significantly correlated with vascular invasion and the tumor regression grade. Combined expression was significantly correlated with lymphatic invasion, tumor regression grade and TNM stage, but not with overall, and disease-free survival. LGR5 and CD133 expressions may represent useful markers associated with tumor progression and resistance to chemoradiotherapy in patients with low rectal cancer. Furthermore, combined expression of these markers may be a more useful marker compared with the expression of each single marker.
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Affiliation(s)
- Yuzo Harada
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shinsuke Kazama
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Teppei Morikawa
- Department of Pathology, The University of Tokyo Hospital, Bunkyo-ku, Tokyo 113-8655, Japan
| | - Koji Murono
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Koji Yasuda
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kensuke Otani
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takeshi Nishikawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiaki Tanaka
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Tomomichi Kiyomatsu
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kazushige Kawai
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Keisuke Hata
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroaki Nozawa
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hironori Yamaguchi
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Soichiro Ishihara
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Toshiaki Watanabe
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-8656, Japan
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Qiu J, Tao Y, Yang G, Xu K, Lin AL, Li L. Effect of a chemical inhibitor of human phosphatidylethanolamine-binding protein 4 on radiosensitivity of rectal cancer cells. World J Surg Oncol 2016; 14:221. [PMID: 27553494 PMCID: PMC4994219 DOI: 10.1186/s12957-016-0977-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 08/13/2016] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Human phosphatidylethanolamine-binding protein 4 (hPEBP4) is a well-established antiapoptosis molecule in recent years. It has also been demonstrated to be involved in the radioresistance of rectal cancer. The objective of this study was to determine whether IOI-42, a chemical inhibitor of hPEBP4, could sensitize rectal cancer cells. METHODS Rectal cancer cells were treated with IOI-42 alone or in combination with irradiation. Clonogenic survival assays and tumor volume growth analysis were used, respectively, to study the effect of IOI-42 in vitro and in vivo. Western blot was adopted to measure the activation of signal pathway. RESULTS Clonogenic survival assays showed that IOI-42, combined with irradiation, caused a significant decrease in colony formation compared with radiation alone, which was associated with the downregulation of Akt activation. And we also confirmed the effect of IOI-42 in nude mice transplanted with human rectal cancer subcutaneously. CONCLUSIONS These data suggest that IOI-42 has a potential to enhance the radiosensitivity of rectal cancer cells, providing a rationale to further investigate the feasibility of combining of IOI-42 with radiation, keeping in mind that this may result in unexpected toxicities.
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Affiliation(s)
- Jianming Qiu
- Department of Colorectal Surgery, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China.
| | - Yong Tao
- Department of Colorectal Surgery, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China
| | - Guangen Yang
- Department of Colorectal Surgery, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China
| | - Kan Xu
- Department of Colorectal Surgery, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China
| | - A Li Lin
- Department of Pathology, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China
| | - Liuyu Li
- Department of Pathology, The Third Hospital of Hangzhou, 38 West Lake Avenue, ShangChen District, Hangzhou, China
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Abstract
Based on an analysis of a large number of sources of literature, the paper gives general information on the markers for cancer stem cells (CSCs), which allow the detection of this rare cell subpopulation, on the possibilities of estimating their immunohistochemical or immunofluorescent expression in tumors, and on the prognostic and predictive values of these molecules. For their detection, investigators generally use definite molecules, the so-called markers of CSCs, among which there are CD44, CD133, CD24, aldehyde dehydrogenase, and others. The expression of these molecules in the tumor tissue obtained from patients affects survival rates and permits the prediction of a response to therapy. A better insight into the immunophenotype of CSCs, the role of CSC markers in retaining the special properties of this call population, and the clinical significance of the expression of CSC markers will be able to elaborate new approaches to therapy for malignancies.
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Affiliation(s)
- M V Puchinskaya
- Belarusian State Medical University, Minsk, Republic of Belarus
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10
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Abdel-Aziz HA, Ghabbour HA, Eldehna WM, Al-Rashood ST, Al-Rashood KA, Fun HK, Al-Tahhan M, Al-Dhfyan A. 2-((Benzimidazol-2-yl)thio)-1-arylethan-1-ones: Synthesis, crystal study and cancer stem cells CD133 targeting potential. Eur J Med Chem 2015; 104:1-10. [DOI: 10.1016/j.ejmech.2015.09.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 06/26/2015] [Accepted: 09/15/2015] [Indexed: 02/02/2023]
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11
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Narita M, Oussoultzoglou E, Chenard MP, Fuchshuber P, Yamamoto T, Addeo P, Jaeck D, Bachellier P. Predicting early intrahepatic recurrence after curative resection of colorectal liver metastases with molecular markers. World J Surg 2015; 39:1167-76. [PMID: 25561185 DOI: 10.1007/s00268-014-2916-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND The aim of this case-control study was to identify clinicopathological factors and test three relevant biomarkers for their ability to predict early intrahepatic recurrence after curative liver resection for colorectal liver metastases (CLM). METHODS Of the 184 patients with CLM undergoing hepatectomy between January 2007 and December 2009, thirty patients had intrahepatic disease recurrence within 6 months. The control group was randomly selected from a cohort of patients between April 1997 and December 2005 who have survived without disease recurrence after CLM resection for over 5 years. Both groups were matched for size of metastasis greater than 5.0 cm, the presence of multiple metastases, and synchronous versus metachronous CLM. The final study population consisted of 60 patients with CLM undergoing R0 hepatectomy, 30 of whom had early intrahepatic-only recurrences (study group) and 30 patients without recurrence for more than 5 years (control group). Both groups were analyzed and compared for the presence of clinical factors and expression levels of CD133, survivin, and Bcl-2 within tumor tissue. RESULTS Characteristics of patients were similar between the two groups except primary tumor location and administration of postoperative chemotherapy. Expression level of CD133 and survivin were significantly increased in tumors of patients with recurrence compared to patients without recurrence. On multivariate analysis high tumor expression levels of CD133 (odds ratio [OR] 14.7, confidence interval [CI] 1.8-121.3, p = 0.012) and survivin (OR 9.5, CI 2.1-44.3, p = 0.004) and postoperative chemotherapy (OR 4.8, CI 1.01-22.9, p = 0.049) were independent factors associated with early intrahepatic recurrence. CONCLUSIONS Tumor expression levels of CD133 and survivin may be a useful predictor of early intrahepatic recurrence after hepatectomy for CLM. Administration of postoperative chemotherapy may prevent early intrahepatic recurrence.
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Affiliation(s)
- Masato Narita
- Centre de Chirurgie Viscérale et de Transplantation, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, Avenue Molière, 67098, Strasbourg Cedex, France,
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12
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Zhang C, Tian Y, Song F, Fu C, Han B, Wang Y. Salinomycin inhibits the growth of colorectal carcinoma by targeting tumor stem cells. Oncol Rep 2015; 34:2469-76. [PMID: 26352531 DOI: 10.3892/or.2015.4253] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 07/23/2015] [Indexed: 12/19/2022] Open
Abstract
Salinomycin is a monocarboxylic polyether antibiotic that has been reported to induce apoptosis in various types of cancer cells with specificity for cancer stem cells. However, its anticancer effect in colorectal cancer stem cells has never been reported. In the present study, we examined the ability of salinomycin to induce cell death in the colorectal cancer stem cell line CD44+EpCAM+ HCT-116, and we measured its in vivo tumor inhibition capacity. Salinomycin dose-dependently induced cytotoxicity in the CD44+EpCAM+ HCT-116 cells and inhibited colony formation. Salinomycin treatment was shown to induce apoptosis, as evidenced by nuclear fragmentation, an increase in the proportion of acridine orange/ethidium bromide-positive cells and an increase in the percentage of Annexin V-positive cells. Apoptosis was induced in colorectal cancer stem cells in a caspase-dependent manner, as shown by an increase in the levels of cleaved caspase-3, -8 and -9. JC-1 staining further revealed that salinomycin induced colorectal cancer cell apoptosis via the mitochondrial pathway. In addition, salinomycin treatment of xenograft mice inhibited the growth of tumors derived from the CD44+EpCAM+ HCT-116 cells. The present study demonstrated that the antibiotic salinomycin exerts an anti-colorectal cancer effect in vitro and in vivo, suggesting salinomycin as a potential drug for colorectal cancer therapy.
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Affiliation(s)
- Chen Zhang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yaping Tian
- Department of Dermatology, First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Feiyu Song
- Jilin Connell Pharmaceutical Company, Changchun, Jilin 130000, P.R. China
| | - Changhao Fu
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Bo Han
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yi Wang
- Department of Regenerative Medicine, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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13
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Baek SJ, Ishii H, Tamari K, Hayashi K, Nishida N, Konno M, Kawamoto K, Koseki J, Fukusumi T, Hasegawa S, Ogawa H, Hamabe A, Miyo M, Noguchi K, Seo Y, Doki Y, Mori M, Ogawa K. Cancer stem cells: The potential of carbon ion beam radiation and new radiosensitizers (Review). Oncol Rep 2015; 34:2233-7. [PMID: 26330103 DOI: 10.3892/or.2015.4236] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/06/2015] [Indexed: 11/06/2022] Open
Abstract
Cancer stem cells (CSCs) are a small population of cells in cancer with stem-like properties such as cell proliferation, multiple differentiation and tumor initiation capacities. CSCs are therapy-resistant and cause cancer metastasis and recurrence. One key issue in cancer therapy is how to target and eliminate CSCs, in order to cure cancer completely without relapse and metastasis. To target CSCs, many cell surface markers, DNAs and microRNAs are considered as CSC markers. To date, the majority of the reported markers are not very specific to CSCs and are also present in non-CSCs. However, the combination of several markers is quite valuable for identifying and targeting CSCs, although more specific identification methods are needed. While CSCs are considered as critical therapeutic targets, useful treatment methods remain to be established. Epigenetic gene regulators, microRNAs, are associated with tumor initiation and progression. MicroRNAs have been recently considered as promising therapeutic targets, which can alter the therapeutic resistance of CSCs through epigenetic modification. Moreover, carbon ion beam radiotherapy is a promising treatment for CSCs. Evidence indicates that the carbon ion beam is more effective against CSCs than the conventional X-ray beam. Combination therapies of radiosensitizing microRNAs and carbon ion beam radiotherapy may be a promising cancer strategy. This review focuses on the identification and treatment resistance of CSCs and the potential of microRNAs as new radiosensitizers and carbon ion beam radiotherapy as a promising therapeutic strategy against CSCs.
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Affiliation(s)
- Sung-Jae Baek
- Department of Radiation Oncology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Hideshi Ishii
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Keisuke Tamari
- Department of Radiation Oncology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Kazuhiko Hayashi
- Department of Radiation Oncology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Naohiro Nishida
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Masamitsu Konno
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Koichi Kawamoto
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Jun Koseki
- Department of Cancer Profiling Discovery, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Takahito Fukusumi
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Shinichiro Hasegawa
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Hisataka Ogawa
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Atsushi Hamabe
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Masaaki Miyo
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Kozo Noguchi
- Department of Frontier Science for Cancer and Chemotherapy, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yuji Seo
- Department of Radiation Oncology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
| | - Kazuhiko Ogawa
- Department of Radiation Oncology, Osaka University, Graduate School of Medicine, Suita, Osaka 565-0871, Japan
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14
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James MI, Howells LM, Karmokar A, Higgins JA, Greaves P, Cai H, Dennison A, Metcalfe M, Garcea G, Lloyd DM, Berry DP, Steward WP, Brown K. Characterization and propagation of tumor initiating cells derived from colorectal liver metastases: trials, tribulations and a cautionary note. PLoS One 2015; 10:e0117776. [PMID: 25658706 PMCID: PMC4319830 DOI: 10.1371/journal.pone.0117776] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/30/2014] [Indexed: 12/27/2022] Open
Abstract
Tumor initiating cells (TIC) are increasingly being put forward as a potential target for intervention within colorectal cancer. Whilst characterisation and outgrowth of these cells has been extensively undertaken in primary colorectal cancers, few data are available describing characteristics within the metastatic setting. Tissue was obtained from patients undergoing surgical resection for colorectal liver metastases, and processed into single cell suspension for assessment. Tumor initiating cells from liver metastases were characterised using combinations of EPCAM, Aldehyde dehydrogenase activity, CD133 and CD26. CD133 expression was significantly lower in patients who had received chemotherapy, but this was accounted for by a decrease observed in the male patient cohort only. ALDHhigh populations were rare (0.4 and 0.3% for EPCAM+/ALDHhigh/CD133- and EPCAM+/ALDHhigh/CD133+ populations respectively) and below the limits of detection in 28% of samples. Spheroid outgrowth of metastatic tumor cells across all samples could not be readily achieved using standard spheroid-formation techniques, thus requiring further method validation to reliably propagate cells from the majority of tissues. Spheroid formation was not enhanced using additional growth factors or fibroblast co-culture, but once cells were passaged through NOD-SCID mice, spheroid formation was observed in 82% samples, accompanied by a significant increase in CD26. Order of spheroid forming ability was ALDHhigh>CD133>CD26. Samples sorted by these markers each had the ability to reform ALDHhigh, CD133 and CD26 positive populations to a similar extent, suggestive of a high degree of plasticity for each population. Ex vivo TIC models are increasingly being utilised to assess efficacy of therapeutic interventions. It is therefore essential that such investigations use well-characterised models that are able to sustain TIC populations across a large patient cohort in order that the inherent heterogeneity observed in cancer populations is maintained.
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MESH Headings
- AC133 Antigen
- Aged
- Aged, 80 and over
- Aldehyde Dehydrogenase/metabolism
- Animals
- Antigens, CD/metabolism
- Antigens, Neoplasm/metabolism
- Biomarkers, Tumor/metabolism
- Cell Adhesion Molecules/metabolism
- Cell Line
- Cell Proliferation
- Coculture Techniques
- Colorectal Neoplasms/drug therapy
- Colorectal Neoplasms/metabolism
- Colorectal Neoplasms/pathology
- Dipeptidyl Peptidase 4/metabolism
- Epithelial Cell Adhesion Molecule
- Female
- Fibroblasts/cytology
- Fibroblasts/metabolism
- Flow Cytometry
- Glycoproteins/metabolism
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/metabolism
- Liver Neoplasms/secondary
- Male
- Mice, Inbred NOD
- Mice, SCID
- Middle Aged
- Neoplastic Stem Cells/metabolism
- Peptides/metabolism
- Spheroids, Cellular/metabolism
- Spheroids, Cellular/pathology
- Transplantation, Heterologous
- Tumor Cells, Cultured
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Affiliation(s)
| | | | | | | | | | - Hong Cai
- University of Leicester, Leicester, United Kingdom
| | - Ashley Dennison
- University Hospitals of Leicester, Leicester, United Kingdom
| | | | - Giuseppe Garcea
- University Hospitals of Leicester, Leicester, United Kingdom
| | - David M. Lloyd
- University Hospitals of Leicester, Leicester, United Kingdom
| | | | | | - Karen Brown
- University of Leicester, Leicester, United Kingdom
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15
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Meng X, Huang Z, Wang R, Yu J. Prediction of response to preoperative chemoradiotherapy in patients with locally advanced rectal cancer. Biosci Trends 2014; 8:11-23. [PMID: 24647108 DOI: 10.5582/bst.8.11] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Preoperative chemoradiotherapy (CRT) combined with surgery has become a standard treatment strategy for patients with locally advanced rectal cancer (LARC). The pathological response is an important prognostic factor for LARC. The variety of tumor responses has increased the need to find a useful predictive model for the response to CRT to identify patients who will really benefit from this multimodal treatment. Magnetic resonance imaging (MRI), positron emission tomography-computed tomography (PET-CT), serum carcinoembryogenic antigen (CEA), molecular biomarkers analyzed by immunohistochemistry and gene expression profiling are the most used predictive models in LARC. The majority of predictors have yielded encouraging results, but there is still controversy. Diffusion-weighted MRI may be the best model to detect the dynamic changes of rectal cancer and predict the response at an early stage. Gene expression profiling and single nucleotide polymorphisms hold considerable promise to unveil the underlying complex genetics of response to CRT. Because each parameter has its own inherent shortcomings, combined models may be the future trend to predict the response.
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Affiliation(s)
- Xiangjiao Meng
- Department of Radiation Oncology and Key Laboratory of Radiation Oncology of Shandong Province, Department of Radiation Oncology of Shandong Cancer Hospital and Institute
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16
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Oh SY, Sohn SH, Yim H, Lee D, Suh KW, Kim YB. ALDH1 is a prognostic factor for patients treated with neoadjuvant chemoradiotherapy and radical resection for stage III rectal cancer. J Surg Oncol 2014; 111:243-7. [PMID: 25270363 DOI: 10.1002/jso.23792] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 08/25/2014] [Indexed: 11/05/2022]
Abstract
BACKGROUND AND OBJECTIVES The factors relating to changes within a tumor after preoperative chemoradiotherapy associated with rectal cancer prognosis remain to be determined. The aim of this study was to investigate the expression of CD133 and ALDH1 and to analyze the predictive and prognostic roles in patients with rectal cancer after chemoradiotherapy. METHODS We analyzed the expression levels of ALDH1 and CD133 in patients with middle and lower rectal cancers who underwent preoperative chemoradiotherapy between March 2005 and December 2011. RESULTS The expression of CD133 was not associated with survival. The 5-year overall survival rates were lower in patients with high ALDH1 expression compared to low ALDH1 expression in stage III rectal cancer (61.0% vs. 89.7%, P=0.031). Cox multivariate analysis demonstrated that high ALDH1 expression (HR, 5.425; 95% CI, 1.116-26.373; P=0.036), cT (HR, 12.861; 95% CI, 2.188-75.591; P=0.005), and pN2 (HR, 28.481; 95% CI, 4.757-170.518; P<0.001) were independently associated with overall survival in 51 patients with stage III rectal cancer. CONCLUSIONS Expression of ALDH1 indicates a more aggressive feature of stage III rectal cancer and can stratify stage III rectal cancer into different survival groups.
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Affiliation(s)
- Seung Yeop Oh
- Department of Surgery, Ajou University School of Medicine, Suwon, Korea
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17
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Sahlberg SH, Spiegelberg D, Glimelius B, Stenerlöw B, Nestor M. Evaluation of cancer stem cell markers CD133, CD44, CD24: association with AKT isoforms and radiation resistance in colon cancer cells. PLoS One 2014; 9:e94621. [PMID: 24760019 PMCID: PMC3997403 DOI: 10.1371/journal.pone.0094621] [Citation(s) in RCA: 159] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Accepted: 03/19/2014] [Indexed: 12/11/2022] Open
Abstract
The cell surface proteins CD133, CD24 and CD44 are putative markers for cancer stem cell populations in colon cancer, associated with aggressive cancer types and poor prognosis. It is important to understand how these markers may predict treatment outcomes, determined by factors such as radioresistance. The scope of this study was to assess the connection between EGFR, CD133, CD24, and CD44 (including isoforms) expression levels and radiation sensitivity, and furthermore analyze the influence of AKT isoforms on the expression patterns of these markers, to better understand the underlying molecular mechanisms in the cell. Three colon cancer cell-lines were used, HT-29, DLD-1, and HCT116, together with DLD-1 isogenic AKT knock-out cell-lines. All three cell-lines (HT-29, HCT116 and DLD-1) expressed varying amounts of CD133, CD24 and CD44 and the top ten percent of CD133 and CD44 expressing cells (CD133high/CD44high) were more resistant to gamma radiation than the ten percent with lowest expression (CD133low/CD44low). The AKT expression was lower in the fraction of cells with low CD133/CD44. Depletion of AKT1 or AKT2 using knock out cells showed for the first time that CD133 expression was associated with AKT1 but not AKT2, whereas the CD44 expression was influenced by the presence of either AKT1 or AKT2. There were several genes in the cell adhesion pathway which had significantly higher expression in the AKT2 KO cell-line compared to the AKT1 KO cell-line; however important genes in the epithelial to mesenchymal transition pathway (CDH1, VIM, TWIST1, SNAI1, SNAI2, ZEB1, ZEB2, FN1, FOXC2 and CDH2) did not differ. Our results demonstrate that CD133high/CD44high expressing colon cancer cells are associated with AKT and increased radiation resistance, and that different AKT isoforms have varying effects on the expression of cancer stem cell markers, which is an important consideration when targeting AKT in a clinical setting.
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Affiliation(s)
- Sara Häggblad Sahlberg
- Section of Biomedical Radiation Sciences, Department of Radiology, Oncology and Radiation Science, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- * E-mail:
| | - Diana Spiegelberg
- Section of Biomedical Radiation Sciences, Department of Radiology, Oncology and Radiation Science, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Bengt Glimelius
- Section of Oncology, Department of Radiology, Oncology and Radiation Science, Uppsala University, Uppsala, Sweden
| | - Bo Stenerlöw
- Section of Biomedical Radiation Sciences, Department of Radiology, Oncology and Radiation Science, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Marika Nestor
- Section of Biomedical Radiation Sciences, Department of Radiology, Oncology and Radiation Science, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
- Section of Otolaryngology and Head and Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
- Science for Life Laboratory, Uppsala University, Uppsala, Sweden
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18
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Preliminary Study on the Expression and the Clinical Significance of CD133 in Peripheral Blood of Patients with Gastric Adenocarcinoma. ISRN GASTROENTEROLOGY 2014; 2014:245329. [PMID: 24653835 PMCID: PMC3932643 DOI: 10.1155/2014/245329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/17/2013] [Indexed: 01/06/2023]
Abstract
Background. Significances of CD133 mRNA in peripheral blood mononuclear cells (PBMCs) of gastric adenocarcinoma (GC) patients were investigated. Methods. Correlations of CD133 mRNA expression in PBMCs on clinicopathological parameters or CD133 protein expression were analyzed. Receiver operating characteristic curve according to bright scale value (BSV) of CD133 mRNA was used to group patients for prognosis analysis. Results. BSV of preoperative CD133 mRNA in PBMCs in GC was significantly higher than that in volunteers or in GU. Invasive depth or metastatic lymph node number for higher BSV of preoperative CD133 mRNA and invasive depth or lymphatic vessel invasion for higher BSV of postoperative CD133 mRNA in the PBMCs were identified. Patients with CD133+ expression in primary lesion had a significantly higher expression of preoperative CD133 mRNA in the PBMCs. The expression of preoperative or postoperative CD133 mRNA in PBMCs related positively to CD133 mRNA expression in primary lesion. Patients with higher expression of preoperative or postoperative CD133 mRNA shared significantly shorter survival compared with that in lower expression group. Conclusion. Higher levels of preoperative or postoperative CD133 mRNA in PBMCs of GC correlated positively to the lymphatic metastasis and the BSV of CD133 mRNA in primary lesion, indicating the poorer survival.
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19
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Mohammadi M, Bzorek M, Bonde JH, Nielsen HJ, Holck S. The stem cell marker CD133 is highly expressed in sessile serrated adenoma and its borderline variant compared with hyperplastic polyp. J Clin Pathol 2013; 66:403-8. [PMID: 23436931 DOI: 10.1136/jclinpath-2012-201192] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Non-dysplastic serrated polyps (ND-SP) represent a heterogeneous group of colorectal lesions that comprise hyperplastic polyp (HP) and the non-dysplastic subset of sessile serrated adenoma/polyp/lesion (SSA/P/L) and its borderline variant (BSSA/P/L). Given the observer variation in their histological typing, the identification of reliable markers that assist in the characterisation is warranted. Most important is the identification of polyp qualities that may reflect the patients' risk of developing colorectal cancer. To address these issues, CD133 may represent a potential adjunct. Here we studied the discriminatory value of CD133 expression in the classification of ND-SPs and its distribution pattern in relation to synchronous colorectal carcinoma (SCRC). 39 SSA/P/Ls, 27 BSSA/P/Ls and 21 matched HPs were immunostained for CD133. The data were further correlated to the presence of SCRC and to polyp site and size. Ignoring SCRC status, CD133 was expressed more prominently in SSA/P/Ls than in HPs. The values for BSSA/P/Ls fell in between, yet closer to the SSA/P/L scorings. This observation was retained in the context of SCRC and for SSA/P/Ls not associated with SCRC. Right-sidedness and large size of the polyps more commonly associated with increased CD133 expression. CD133 expression was not a significant discriminator as to the SCRC status. BSSA/P/Ls are more closely aligned to SSA/P/L and further that SSA/P/L and BSSA/P/Ls fundamentally differ from HP by their CD133 immunoprofile, a notion that can be exploited in the diagnostic routine practice. Recorded data further indirectly support the idea that SSA/P/Ls are more prone to neoplastic progression than are HPs.
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20
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Chen S, Song X, Chen Z, Li X, Li M, Liu H, Li J. CD133 expression and the prognosis of colorectal cancer: a systematic review and meta-analysis. PLoS One 2013; 8:e56380. [PMID: 23409180 PMCID: PMC3569427 DOI: 10.1371/journal.pone.0056380] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 01/08/2013] [Indexed: 12/25/2022] Open
Abstract
Objective CD133 has recently been reported as a marker of cancer stem-like cells in colorectal cancer (CRC). However, its predictive value in CRC still remains controversial. In this study, we aimed to evaluate the association between the expression of CD133 and clinicopathological features and the outcome of CRC patients by performing a meta-analysis. Methods A comprehensive literature search for relevant studies published up to December 2012 was performed using PubMed, MEDLINE and ISI Web of Science. Only articles in which CD133 antigen was detected in situ localisation by immunohistochemical staining were included. This meta-analysis was done using RevMan 4.2 software. Results We found that a total of 15 studies involving 810 CD133-high and 1487 CD133-low patients met the inclusion criteria for the analysis of 5-year overall survival (OS) rate. In a random-effects model, the results showed that CD133-high expression in colorectal cancer was an independent prognostic marker correlating with both OS rate (RR = 0.67, 95%CI 0.54–0.82, P<0.01) and disease free survival (DFS) rate (RR = 0.71, 95%CI 0.52–0.96, P = 0.03). CD133-high expression was also associated with more T3,4 tumor invasion, N positive and vascular invasion cases, corresponding to a risk difference of 1.12 (95%CI 1.01–1.23, P = 0.03), 1.31 (95%CI 1.06–1.63, P = 0.01) and 1.24 (95%CI 1.08–1.41, P<0.01), respectively. However, when types of histology, lymphatic invasion and distant metastasis were considered, CD133 overexpression was not significantly related with these clinicopathological parameters. Conclusion Our meta-analysis results suggest that CD133 is an efficient prognostic factor in CRC. Higher CD133 expression is significantly associated with poorer clinical outcome and some clinicopathological factors such as T category, N category and vascular invasion in CRC patients.
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Affiliation(s)
- Shicai Chen
- Department of Gastrointestinal Tumor Surgery, Affiliated Tumor Hospital of Guangzhou Medical College, Guangzhou, China
| | - Xinming Song
- Department of Gastrointestinal and Pancreatic Surgery of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- * E-mail:
| | - Zhihui Chen
- Department of Gastrointestinal and Pancreatic Surgery of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xinxin Li
- Department of Gastrointestinal and Pancreatic Surgery of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Mingzhe Li
- Department of Gastrointestinal and Pancreatic Surgery of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haiying Liu
- Department of Gastrointestinal Tumor Surgery, Affiliated Tumor Hospital of Guangzhou Medical College, Guangzhou, China
| | - Jianchang Li
- Department of Gastrointestinal Tumor Surgery, Affiliated Tumor Hospital of Guangzhou Medical College, Guangzhou, China
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21
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Sgambato A, Corbi M, Svelto M, Caredda E, Cittadini A. New Insights into the CD133 (Prominin-1) Expression in Mouse and Human Colon Cancer Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2013; 777:145-66. [PMID: 23161081 DOI: 10.1007/978-1-4614-5894-4_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Following its discovery as a cancer stem cell marker, CD133 has been widely studied for its role in colorectal tumorigenesis. Indeed, colon cancer remains one of the major causes of cancer-related disease and death worldwide, and there is a strong need for an improvement of current diagnostic, prognostic, and therapeutic strategies. Thus, efforts have been devoted to try to understand whether CD133 might play a role in human colorectal tumorigenesis and might contribute to a better management of colon cancer patients. This chapter reviews the current knowledge on CD133 expression in normal and cancer colon tissues, both in humans and mice, discussing apparently conflicting data reported in the two species. Moreover, a great attention is devoted to the available information regarding the functional role of CD133 in colon cancer cells. Finally, the proposed clinical applications of CD133, as a prognostic and/or predictive marker as well as a target for novel antineoplastic strategies in colorectal cancer, are discussed. Overall, the available data support a potential important role of CD133 as cancer stem cell marker in colon cancer cells and warrant future studies to verify its potential use in the routine clinical management of colon cancer patients.
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Affiliation(s)
- Alessandro Sgambato
- Istituto di Patologia Generale, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168, Rome, Italy,
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22
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Abstract
Understanding the genetic and molecular mechanisms of ovarian cancer has been the focus of research efforts working toward the greater goal of improving cancer therapy for patients with residual disease after initial treatment with conventional surgery and neoadjuvant chemotherapy. The focus of this review will be centered on new therapeutic strategies based on Cancer Stem Cells studies of chemoresistant subpopulations, the prevention of metastasis, and individualized therapy in order to find the most successful combination of treatments to effectively treat human ovarian cancer. We reviewed recent literature (1993-2011) of novel treatment approaches to ovarian cancer stem cells. As the focus of ovarian cancer investigation has centered on the cancer stem cell model and the complexities that it presents in the development of effective treatments, the future of treating ovarian cancer lies in utilizing individualized treatment systems that include enhancing existing treatments, aiming for novel therapy targets, managing the plasticity of stem cells to induce cellular differentiation, and regulating oncogenic signaling pathways.
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23
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Hongo K, Kazama S, Sunami E, Tsuno NH, Takahashi K, Nagawa H, Kitayama J. Immunohistochemical detection of CD133 is associated with tumor regression grade after chemoradiotherapy in rectal cancer. Med Oncol 2012; 29:2849-57. [PMID: 22246526 PMCID: PMC3466429 DOI: 10.1007/s12032-012-0161-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 01/05/2012] [Indexed: 12/13/2022]
Abstract
CD133 has been identified as a putative cancer stem cell (CSC) marker in various cancers including colorectal cancer. The relation between CD133 expression and biological characteristics of colorectal cancer remains to be clarified. Protein expression of CD133 was immunohistochemically evaluated in surgical specimens of 225 patients with colorectal cancer who were treated by surgery, as well as those of 78 patients with rectal cancer who received preoperative chemoradiotherapy (CRT) followed by curative resection. The correlation between CD133 expression and clinicopathological features, tumor recurrence and overall survival was analyzed in both populations. Among 225 colorectal cancers without CRT, 93 (41.3%) were positive for CD133 expression, which was enhanced in cases with advanced T stage and venous invasion. Moreover, CD133 was positive in 47 (60.3%) of 78 cases with CRT, which was significantly higher than the CD133-positive rate in non-CRT specimens (P=0.05). Expression of CD133 was independently correlated with the histological tumor regression grade (P<0.01). These results suggest that CD133 is not a distinctive colorectal CSC marker; expression of CD133 is suggested to be one of the key factors associated with resistance to CRT in colorectal cancer.
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Affiliation(s)
- Kumiko Hongo
- Department of Surgical Oncology, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
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24
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Grosse-Gehling P, Fargeas CA, Dittfeld C, Garbe Y, Alison MR, Corbeil D, Kunz-Schughart LA. CD133 as a biomarker for putative cancer stem cells in solid tumours: limitations, problems and challenges. J Pathol 2012; 229:355-78. [DOI: 10.1002/path.4086] [Citation(s) in RCA: 220] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 07/30/2012] [Accepted: 08/04/2012] [Indexed: 12/11/2022]
Affiliation(s)
- Philipp Grosse-Gehling
- Tumor Pathophysiology, OncoRay, National Center for Radiation Research in Oncology; Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
| | - Christine A Fargeas
- Tissue Engineering Laboratories (BIOTEC) and DFG Research Center and Cluster of Excellence for Regenerative Therapies Dresden (CRTD); Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
| | - Claudia Dittfeld
- Tumor Pathophysiology, OncoRay, National Center for Radiation Research in Oncology; Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
| | - Yvette Garbe
- Tumor Pathophysiology, OncoRay, National Center for Radiation Research in Oncology; Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
| | - Malcolm R Alison
- Blizard Institute; Barts and The London School of Medicine and Dentistry; London; UK
| | - Denis Corbeil
- Tissue Engineering Laboratories (BIOTEC) and DFG Research Center and Cluster of Excellence for Regenerative Therapies Dresden (CRTD); Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
| | - Leoni A Kunz-Schughart
- Tumor Pathophysiology, OncoRay, National Center for Radiation Research in Oncology; Dresden University of Technology; Fetscherstrasse 74; 01307; Dresden; Germany
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Peickert S, Waurig J, Dittfeld C, Dietrich A, Garbe Y, Kabus L, Baumann M, Grade M, Ried T, Kunz-Schughart LA. Rapid re-expression of CD133 protein in colorectal cancer cell lines in vitro and in vivo. J Transl Med 2012; 92:1607-22. [PMID: 22964855 PMCID: PMC7477948 DOI: 10.1038/labinvest.2012.124] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Studies related to the cancer stem cell hypothesis are challenging because of the imperfect tools to identify cell populations of interest and controversy on the usefulness of established cancer cell lines. We previously found CD133 to not be selective for a tumor-propagating or radioresistant population in a near-diploid, microsatellite-instable colorectal carcinoma (CRC) cell line. Because of discrepant literature data, we herein systematically analyzed the behavior of microsatellite-stable cell line subpopulations reflecting the more frequent carcinogenesis pathway in spontaneous CRC. CD133⁺ and CD133(-/low) populations were isolated by fluorescence-activated cell sorting and further processed. HT29 and SW620 cells were studied in detail in monolayer and/or spheroid culture assays and upon subcutaneous injection in NMRI (nu/nu) mice using a limiting dilution approach. CD133(-/low) HT29 cells showed a significantly lower clonogenic survival and reduced spheroid formation capacity than their CD133⁺ counterparts. However, the cell populations neither differed in growth kinetics and response to treatment in vitro nor in tumor formation capacity when injecting as low as 10 cells. CD133(-/low) HT29 cells rapidly re-expressed CD133 protein in vitro and in vivo as shown by flow cytometry and/or western blot analyses, and they also showed a particular survival benefit under tissue normoxic conditions. In contrast, CD133 protein in the CD133⁺ population was quite stable throughout culturing. The observation of CD133 re-expression and lack of difference in tumor take rate of subpopulations was confirmed in SW620 cells. Here, we found cell density to affect CD133 re-expression in the CD133(-)-sorted population. And even SW480 cells, classified as a CD133⁻ cell line, presented some CD133 protein on their surface upon in vivo engraftment. We conclude that (i) CD133 protein expression shows high plasticity in CRC cell lines, and (ii) in vitro CD133 status on the cell surface neither determines tumorigenic potential nor CD133 profile in vivo.
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Affiliation(s)
- Susann Peickert
- OncoRay-National Center for Radiation Research in Oncology, Medical Faculty Carl Gustav Carus, Dresden University of Technology, Dresden, Germany
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Jao SW, Chen SF, Lin YS, Chang YC, Lee TY, Wu CC, Jin JS, Nieh S. Cytoplasmic CD133 expression is a reliable prognostic indicator of tumor regression after neoadjuvant concurrent chemoradiotherapy in patients with rectal cancer. Ann Surg Oncol 2012; 19:3432-40. [PMID: 22739652 DOI: 10.1245/s10434-012-2394-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2011] [Indexed: 02/06/2023]
Abstract
BACKGROUND Despite development in therapeutic strategies, such as neoadjuvant concurrent chemoradiotherapy (CCRT), the prognosis of colorectal cancer remains relatively poor. Cancer stem cells (CSC) with several characteristics can lead to therapeutic resistance. CD133 has been identified as a putative CSC marker in colorectal cancer; however, its functional role still needs elucidation. We verified the role of CD133 with emphasis on expression location and correlated the results of CD133 with clinical outcome in colorectal cancer. METHODS We used immunohistochemistry to investigate the expression of CD133 in samples from 157 patients with colonic adenocarcinoma and from 76 patients with rectal adenocarcinoma who received neoadjuvant CCRT. We also correlated the expression location of CD133 with the clinicopathological parameters and prognosis. RESULTS CD133 protein was variably overexpressed in colorectal cancer tissues and was present in three locations: apical and/or endoluminal surfaces, cytoplasm, and lumen. Cytoplasmic CD133 expression level correlated significantly with tumor local recurrence (P = 0.025) and survival of patients with colorectal cancer (P = 0.002), and correlated inversely with tumor regression grading (P = 0.021) after CCRT in patients with rectal cancer. CONCLUSIONS The expression of CD133 in the cytoplasm is closely associated with local recurrence and patient survival, and may provide a reliable prognostic indicator of tumor regression grading in patients with rectal cancer after CCRT. Cytoplasmic CD133 expression may also help identify the surviving cancer cells in areas with nearly total regression after CCRT.
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Affiliation(s)
- Shu-Wen Jao
- Division of Colon and Rectal Surgery, National Defense Medical Centre and Tri-Service General Hospital, Taipei, Taiwan.
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Sprenger T, Conradi LC, Beissbarth T, Ermert H, Homayounfar K, Middel P, Rüschoff J, Wolff HA, Schüler P, Ghadimi BM, Rödel C, Becker H, Rödel F, Liersch T. Enrichment of CD133-expressing cells in rectal cancers treated with preoperative radiochemotherapy is an independent marker for metastasis and survival. Cancer 2012; 119:26-35. [PMID: 22736392 DOI: 10.1002/cncr.27703] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 05/15/2012] [Accepted: 05/22/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND The transmembrane glycoprotein CD133 (cluster of differentiation 133; also known as Prominin or PROM1) has been described as a potential stem cell marker in colorectal cancer and is associated with higher tumorigenic potential and resistance to radiochemotherapy (RCT). In this study, CD133 expression was evaluated in pre-RCT tumor biopsies and the corresponding post-RCT surgical specimens from patients with locally advanced rectal adenocarcinoma, and expression levels were correlated with histopathologic features and clinical follow-up. METHODS One hundred twenty-six patients with International Union Against Cancer (UICC) stage II/III rectal cancer who received preoperative 5-fluorouracil (5-FU)-based RCT within the German Rectal Cancer Trials were investigated. Pre-RCT and post-RCT CD133 expression levels were determined using immunohistochemistry and were correlated with histopathologic parameters, tumor regression grade, cancer recurrence, and patient survival. RESULTS Compared with pre-RCT biopsies, significantly higher CD133 expression was observed in tumor specimens (P = .01). However, no correlations were observed for either biopsies or tumor specimens between CD133 expression levels, histopathologic characteristics, or survival. In matched analyses of corresponding biopsy/tumor pairs, patients who had an increased fraction of CD133-expressing (CD133+) cells after preoperative RCT had significantly higher residual tumor stages (P = .02) and lower histopathologic tumor regression (P < .01). Moreover, these patients had significantly reduced disease-free survival and cancer-specific overall survival in univariate analysis (P < .001 and P = .004, respectively) and multivariate analysis (P = .003 and P = .024, respectively). CONCLUSIONS The enrichment of CD133+ cancer cells during preoperative RCT was correlated with minor local tumor response, increased distant cancer recurrence, and decreased survival. The current results indicate that the up-regulation of intratumoral CD133 expression, in contrast to absolute pre-RCT and post-RCT CD133 levels, plays an important role in tumor progression and metastasis in patients with rectal cancer who are receiving neoadjuvant RCT.
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Affiliation(s)
- Thilo Sprenger
- Department of General and Visceral Surgery, University Medical Center, Goettingen, Germany.
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Abstract
The treatment of rectal cancer largely depends on disease stage at diagnosis, based on which patients can be classified as low, intermediate, or high risk. Prognostic and predictive markers, specific to each risk category, can be applied for optimal risk classification and subsequent treatment allocation. These markers are either histopathological, determined with imaging, or have a biomolecular background. This review provides an overview of the current status of treatment options and the use of prognostic and predictive markers in each risk category. An effort was made to identify those markers that are currently lacking in, but have the potential to improve, the clinical decision process by discussing the data from recent studies aimed at the development of new prognostic and predictive markers. At this moment, none of the markers studied has been proven to be of significant, independent value, justifying implementation in daily clinical practice. However, recent developments in imaging techniques and biomolecular research do show great potential.
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Kemper K, Versloot M, Cameron K, Colak S, de Sousa e Melo F, de Jong JH, Bleackley J, Vermeulen L, Versteeg R, Koster J, Medema JP. Mutations in the Ras-Raf Axis underlie the prognostic value of CD133 in colorectal cancer. Clin Cancer Res 2012; 18:3132-41. [PMID: 22496204 DOI: 10.1158/1078-0432.ccr-11-3066] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE High expression of cancer stem cell (CSC) marker CD133 has been used as a predictor for prognosis in colorectal cancer (CRC), suggesting that enumeration of CSCs, using CD133, is predictive for disease progression. However, we showed recently that both CD133 mRNA and protein are not downregulated during differentiation of colon CSCs, pointing to an alternative reason for the prognostic value of CD133. We therefore set out to delineate the relation between CD133 expression and prognosis. EXPERIMENTAL DESIGN A CRC patient series was studied for expression of CD133 and other CSC markers by microarray and quantitative PCR analysis. In addition, several common mutations were analyzed to determine the relation with CD133 expression. RESULTS CD133 mRNA expression predicted relapse-free survival in our patient series, whereas several other CSC markers could not. Moreover, no correlation was found between expression of other CSC markers and CD133. Interestingly, high CD133 expression was related to mutations in K-Ras and B-Raf, and inhibition of mutant K-Ras or downstream mitogen-activated protein kinase kinase (MEK) signaling decreases CD133 expression. In addition, an activated K-Ras gene expression signature could predict CD133 expression in our patient set as well as data sets of other tumor types. CONCLUSION CD133 expression is upregulated in CRC tumors that have a hyperactivated Ras-Raf-MEK-ERK pathway and is therefore related to mutations in K-Ras or B-Raf. As mutations in either gene have been related to poor prognosis, we conclude that CD133 expression is not indicative for CSC numbers but rather related to the mutation or activity status of the Ras-Raf pathway.
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Affiliation(s)
- Kristel Kemper
- Laboratory for Experimental Oncology and Radiobiology, Center for Experimental Molecular Medicine, Academic Medical Center, Amsterdam, the Netherlands
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Brunner TB, Kunz-Schughart LA, Grosse-Gehling P, Baumann M. Cancer Stem Cells as a Predictive Factor in Radiotherapy. Semin Radiat Oncol 2012; 22:151-74. [DOI: 10.1016/j.semradonc.2011.12.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Increased CD133 expression after preoperative chemoradiotherapy in rectal cancers other than mucin-rich tumors. Virchows Arch 2012; 460:447-53. [DOI: 10.1007/s00428-012-1210-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/18/2012] [Accepted: 01/31/2012] [Indexed: 11/26/2022]
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CD133(-) cells, derived from a single human colon cancer cell line, are more resistant to 5-fluorouracil (FU) than CD133(+) cells, dependent on the β1-integrin signaling. J Surg Res 2011; 175:278-88. [PMID: 21601882 DOI: 10.1016/j.jss.2011.03.076] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 12/17/2010] [Accepted: 03/28/2011] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM Recently, the cancer stem cells (CSCs) theory has been proposed, and CD133 has been suggested as a potential marker of CSCs in various cancer types. In the present study, we aimed evaluate CD133 as a potential marker of colorectal CSCs and, for this purpose, isolated CD133(+) and CD133(-) cells from a single colorectal cancer cell line, and compared their features, especially related to the tumor-forming and differentiation abilities, and the sensitivity to chemotherapy. METHODS AND RESULTS CD133(+) cells had higher in vivo tumor-forming ability than CD133(-) cells, and in culture, they progressively differentiated into CD133(-) cells, but not vice-versa. On the other hand, CD133(-) cells were more resistant to 5-fluorouracil (FU) treatment than CD133(+) cells, and it was found to be dependent on the higher expression of ß1-integrins, and consequently, higher ability to bind collagen. Disruption of the ß1-integrin function abrogated the chemoresistance. CONCLUSION From the present results, we concluded that colorectal cancer CD133(+) cells, although showing some features of CSCs, are not more resistant to 5-FU than CD133(-) cells. Therefore, definite conclusions can not be drawn yet, but it is strongly suggestive that CD133 should not be used as a single CSC marker of colorectal cancer.
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Wilson BJ, Schatton T, Frank MH, Frank NY. Colorectal Cancer Stem Cells: Biology and Therapeutic Implications. CURRENT COLORECTAL CANCER REPORTS 2011; 7:128-135. [PMID: 21552371 DOI: 10.1007/s11888-011-0093-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The hypothesis that cancer is driven by a subpopulation of tumor-initiating or cancer stem cells (CSC), defined by their selective ability for extensive self-renewal and capacity to give rise to nontumorigenic cancer cell progeny through differentiation, has been validated experimentally in diverse human malignancies. Translational relevance of the CSC hypothesis is underlined by emerging novel strategies designed to target all subpopulations within a given tumor in order to effect cancer eradication and improve patient outcomes. Colorectal cancer stem cells (CRSCs) have been identified and successfully isolated by several research groups based on distinct cell-surface marker characteristics. Identification of CRSC populations has led to a wave of discoveries describing novel self-renewal and drug resistance mechanisms in colorectal cancer that represent novel future therapeutic targets. In this review, we will discuss emerging CRSC-specific pathways and the therapeutic promise of targeting this cancer population in colorectal cancer patients.
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Affiliation(s)
- Brian J Wilson
- Transplantation Research Center, Children's Hospital Boston and Harvard Skin Disease Research Center, Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, 300 Longwood Avenue, Enders 814, Boston, MA 02115, USA
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