Pancreatic Cancer Stem-like Cells Display Aggressive Behavior Mediated via Activation of FoxQ1

Subpopulations of cancer stem cells (CSCs) or cancer stem-like cells (CSLCs) have been identified from most tumors, including pancreatic cancer (PC), and the existence of these cells is clinically relevant. Emerging evidence suggests that CSLCs participate in cell growth/proliferation, migration/inv...

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Veröffentlicht in:The Journal of biological chemistry 2014-05, Vol.289 (21), p.14520-14533
Hauptverfasser: Bao, Bin, Azmi, Asfar S., Aboukameel, Amro, Ahmad, Aamir, Bolling-Fischer, Aliccia, Sethi, Seema, Ali, Shadan, Li, Yiwei, Kong, Dejuan, Banerjee, Sanjeev, Back, Jessica, Sarkar, Fazlul H.
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container_end_page 14533
container_issue 21
container_start_page 14520
container_title The Journal of biological chemistry
container_volume 289
creator Bao, Bin
Azmi, Asfar S.
Aboukameel, Amro
Ahmad, Aamir
Bolling-Fischer, Aliccia
Sethi, Seema
Ali, Shadan
Li, Yiwei
Kong, Dejuan
Banerjee, Sanjeev
Back, Jessica
Sarkar, Fazlul H.
description Subpopulations of cancer stem cells (CSCs) or cancer stem-like cells (CSLCs) have been identified from most tumors, including pancreatic cancer (PC), and the existence of these cells is clinically relevant. Emerging evidence suggests that CSLCs participate in cell growth/proliferation, migration/invasion, metastasis, and chemo-radiotherapy resistance, ultimately contributing to poor clinical outcome. However, the pathogenesis and biological significance of CSLCs in PC has not been well characterized. In the present study, we found that isolated triple-marker-positive (CD44+/CD133+/EpCAM+) cells of human PC MiaPaCa-2 and L3.6pl cells behave as CSLCs. These CSLCs exhibit aggressive behavior, such as increased cell growth, migration, clonogenicity, and self-renewal capacity. The mRNA expression profiling analysis showed that CSLCs (CD44+/CD133+/EpCAM+) exhibit differential expression of more than 1,600 mRNAs, including FoxQ1, compared with the triple-marker-negative (CD44−/CD133−/EpCAM−) cells. The knockdown of FoxQ1 by its siRNA in CSLCs resulted in the inhibition of aggressive behavior, consistent with the inhibition of EpCAM and Snail expression. Mouse xenograft tumor studies showed that CSLCs have a 100-fold higher potential for tumor formation and rapid tumor growth, consistent with overexpression of CSC-associated markers/mediators, including FoxQ1, compared with its parental MiaPaCa-2 cells. The inhibition of FoxQ1 attenuated tumor formation and growth, and expression of CSC markers in the xenograft tumor derived from CSLCs of MiaPaCa-2 cells. These data clearly suggest the role of differentially expressed genes in the regulation of CSLC characteristics, further suggesting that targeting some of these genes could be important for the development of novel therapies for achieving better treatment outcome of PC. Cancer stem cells (CSCs) correlate to poorer clinical outcomes of many tumors. We identified a highly aggressive (CD44+/CD133+/EpCAM+) CSC-like fraction from pancreatic cancer (PC) cell lines with differential expression of many genes, including FoxQ1. FoxQ1 knockdown inhibited CSC aggressiveness. Targeting differentially expressed CSC-related genes could provide a novel approach for better treatment outcomes of aggressive PC tumors.
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Emerging evidence suggests that CSLCs participate in cell growth/proliferation, migration/invasion, metastasis, and chemo-radiotherapy resistance, ultimately contributing to poor clinical outcome. However, the pathogenesis and biological significance of CSLCs in PC has not been well characterized. In the present study, we found that isolated triple-marker-positive (CD44+/CD133+/EpCAM+) cells of human PC MiaPaCa-2 and L3.6pl cells behave as CSLCs. These CSLCs exhibit aggressive behavior, such as increased cell growth, migration, clonogenicity, and self-renewal capacity. The mRNA expression profiling analysis showed that CSLCs (CD44+/CD133+/EpCAM+) exhibit differential expression of more than 1,600 mRNAs, including FoxQ1, compared with the triple-marker-negative (CD44−/CD133−/EpCAM−) cells. The knockdown of FoxQ1 by its siRNA in CSLCs resulted in the inhibition of aggressive behavior, consistent with the inhibition of EpCAM and Snail expression. Mouse xenograft tumor studies showed that CSLCs have a 100-fold higher potential for tumor formation and rapid tumor growth, consistent with overexpression of CSC-associated markers/mediators, including FoxQ1, compared with its parental MiaPaCa-2 cells. The inhibition of FoxQ1 attenuated tumor formation and growth, and expression of CSC markers in the xenograft tumor derived from CSLCs of MiaPaCa-2 cells. These data clearly suggest the role of differentially expressed genes in the regulation of CSLC characteristics, further suggesting that targeting some of these genes could be important for the development of novel therapies for achieving better treatment outcome of PC. Cancer stem cells (CSCs) correlate to poorer clinical outcomes of many tumors. We identified a highly aggressive (CD44+/CD133+/EpCAM+) CSC-like fraction from pancreatic cancer (PC) cell lines with differential expression of many genes, including FoxQ1. FoxQ1 knockdown inhibited CSC aggressiveness. 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Emerging evidence suggests that CSLCs participate in cell growth/proliferation, migration/invasion, metastasis, and chemo-radiotherapy resistance, ultimately contributing to poor clinical outcome. However, the pathogenesis and biological significance of CSLCs in PC has not been well characterized. In the present study, we found that isolated triple-marker-positive (CD44+/CD133+/EpCAM+) cells of human PC MiaPaCa-2 and L3.6pl cells behave as CSLCs. These CSLCs exhibit aggressive behavior, such as increased cell growth, migration, clonogenicity, and self-renewal capacity. The mRNA expression profiling analysis showed that CSLCs (CD44+/CD133+/EpCAM+) exhibit differential expression of more than 1,600 mRNAs, including FoxQ1, compared with the triple-marker-negative (CD44−/CD133−/EpCAM−) cells. The knockdown of FoxQ1 by its siRNA in CSLCs resulted in the inhibition of aggressive behavior, consistent with the inhibition of EpCAM and Snail expression. Mouse xenograft tumor studies showed that CSLCs have a 100-fold higher potential for tumor formation and rapid tumor growth, consistent with overexpression of CSC-associated markers/mediators, including FoxQ1, compared with its parental MiaPaCa-2 cells. The inhibition of FoxQ1 attenuated tumor formation and growth, and expression of CSC markers in the xenograft tumor derived from CSLCs of MiaPaCa-2 cells. These data clearly suggest the role of differentially expressed genes in the regulation of CSLC characteristics, further suggesting that targeting some of these genes could be important for the development of novel therapies for achieving better treatment outcome of PC. Cancer stem cells (CSCs) correlate to poorer clinical outcomes of many tumors. We identified a highly aggressive (CD44+/CD133+/EpCAM+) CSC-like fraction from pancreatic cancer (PC) cell lines with differential expression of many genes, including FoxQ1. FoxQ1 knockdown inhibited CSC aggressiveness. 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Azmi, Asfar S. ; Aboukameel, Amro ; Ahmad, Aamir ; Bolling-Fischer, Aliccia ; Sethi, Seema ; Ali, Shadan ; Li, Yiwei ; Kong, Dejuan ; Banerjee, Sanjeev ; Back, Jessica ; Sarkar, Fazlul H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c509t-8a0d7aca6847fa0cc827ab92fca3e438fb97a0194d5781878829fcac49b0f0683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>AC133 Antigen</topic><topic>Animals</topic><topic>Antigens, CD - metabolism</topic><topic>Antigens, Neoplasm - metabolism</topic><topic>Apoptosis - genetics</topic><topic>Blotting, Western</topic><topic>Cancer Stem Cells</topic><topic>CD44</topic><topic>Cell Adhesion Molecules - metabolism</topic><topic>Cell Biology</topic><topic>Cell Cycle - genetics</topic><topic>Cell Line, Tumor</topic><topic>Cell Movement - genetics</topic><topic>Cell Proliferation</topic><topic>Epithelial Cell Adhesion Molecule</topic><topic>Flow Cytometry</topic><topic>Forkhead Transcription Factors - genetics</topic><topic>Forkhead Transcription Factors - metabolism</topic><topic>Gene Expression</topic><topic>Gene Expression Profiling</topic><topic>Gene Expression Regulation, Neoplastic</topic><topic>Glycoproteins - metabolism</topic><topic>Humans</topic><topic>Hyaluronan Receptors - metabolism</topic><topic>Immunohistochemistry</topic><topic>Mice</topic><topic>Mice, SCID</topic><topic>Microarray</topic><topic>Microscopy, Confocal</topic><topic>Neoplastic Stem Cells - metabolism</topic><topic>Neoplastic Stem Cells - pathology</topic><topic>Pancreatic Cancer</topic><topic>Pancreatic Neoplasms - genetics</topic><topic>Pancreatic Neoplasms - metabolism</topic><topic>Pancreatic Neoplasms - pathology</topic><topic>Peptides - metabolism</topic><topic>Reverse Transcriptase Polymerase Chain Reaction</topic><topic>RNA Interference</topic><topic>siRNA</topic><topic>Transcriptional Activation</topic><topic>Tumor Growth</topic><topic>Xenograft Model Antitumor Assays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bao, Bin</creatorcontrib><creatorcontrib>Azmi, Asfar S.</creatorcontrib><creatorcontrib>Aboukameel, Amro</creatorcontrib><creatorcontrib>Ahmad, Aamir</creatorcontrib><creatorcontrib>Bolling-Fischer, Aliccia</creatorcontrib><creatorcontrib>Sethi, Seema</creatorcontrib><creatorcontrib>Ali, Shadan</creatorcontrib><creatorcontrib>Li, Yiwei</creatorcontrib><creatorcontrib>Kong, Dejuan</creatorcontrib><creatorcontrib>Banerjee, Sanjeev</creatorcontrib><creatorcontrib>Back, Jessica</creatorcontrib><creatorcontrib>Sarkar, Fazlul H.</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>The Journal of biological chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bao, Bin</au><au>Azmi, Asfar S.</au><au>Aboukameel, Amro</au><au>Ahmad, Aamir</au><au>Bolling-Fischer, Aliccia</au><au>Sethi, Seema</au><au>Ali, Shadan</au><au>Li, Yiwei</au><au>Kong, Dejuan</au><au>Banerjee, Sanjeev</au><au>Back, Jessica</au><au>Sarkar, Fazlul H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pancreatic Cancer Stem-like Cells Display Aggressive Behavior Mediated via Activation of FoxQ1</atitle><jtitle>The Journal of biological chemistry</jtitle><addtitle>J Biol Chem</addtitle><date>2014-05-23</date><risdate>2014</risdate><volume>289</volume><issue>21</issue><spage>14520</spage><epage>14533</epage><pages>14520-14533</pages><issn>0021-9258</issn><eissn>1083-351X</eissn><abstract>Subpopulations of cancer stem cells (CSCs) or cancer stem-like cells (CSLCs) have been identified from most tumors, including pancreatic cancer (PC), and the existence of these cells is clinically relevant. Emerging evidence suggests that CSLCs participate in cell growth/proliferation, migration/invasion, metastasis, and chemo-radiotherapy resistance, ultimately contributing to poor clinical outcome. However, the pathogenesis and biological significance of CSLCs in PC has not been well characterized. In the present study, we found that isolated triple-marker-positive (CD44+/CD133+/EpCAM+) cells of human PC MiaPaCa-2 and L3.6pl cells behave as CSLCs. These CSLCs exhibit aggressive behavior, such as increased cell growth, migration, clonogenicity, and self-renewal capacity. The mRNA expression profiling analysis showed that CSLCs (CD44+/CD133+/EpCAM+) exhibit differential expression of more than 1,600 mRNAs, including FoxQ1, compared with the triple-marker-negative (CD44−/CD133−/EpCAM−) cells. The knockdown of FoxQ1 by its siRNA in CSLCs resulted in the inhibition of aggressive behavior, consistent with the inhibition of EpCAM and Snail expression. Mouse xenograft tumor studies showed that CSLCs have a 100-fold higher potential for tumor formation and rapid tumor growth, consistent with overexpression of CSC-associated markers/mediators, including FoxQ1, compared with its parental MiaPaCa-2 cells. The inhibition of FoxQ1 attenuated tumor formation and growth, and expression of CSC markers in the xenograft tumor derived from CSLCs of MiaPaCa-2 cells. These data clearly suggest the role of differentially expressed genes in the regulation of CSLC characteristics, further suggesting that targeting some of these genes could be important for the development of novel therapies for achieving better treatment outcome of PC. Cancer stem cells (CSCs) correlate to poorer clinical outcomes of many tumors. We identified a highly aggressive (CD44+/CD133+/EpCAM+) CSC-like fraction from pancreatic cancer (PC) cell lines with differential expression of many genes, including FoxQ1. FoxQ1 knockdown inhibited CSC aggressiveness. 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subjects AC133 Antigen
Animals
Antigens, CD - metabolism
Antigens, Neoplasm - metabolism
Apoptosis - genetics
Blotting, Western
Cancer Stem Cells
CD44
Cell Adhesion Molecules - metabolism
Cell Biology
Cell Cycle - genetics
Cell Line, Tumor
Cell Movement - genetics
Cell Proliferation
Epithelial Cell Adhesion Molecule
Flow Cytometry
Forkhead Transcription Factors - genetics
Forkhead Transcription Factors - metabolism
Gene Expression
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Glycoproteins - metabolism
Humans
Hyaluronan Receptors - metabolism
Immunohistochemistry
Mice
Mice, SCID
Microarray
Microscopy, Confocal
Neoplastic Stem Cells - metabolism
Neoplastic Stem Cells - pathology
Pancreatic Cancer
Pancreatic Neoplasms - genetics
Pancreatic Neoplasms - metabolism
Pancreatic Neoplasms - pathology
Peptides - metabolism
Reverse Transcriptase Polymerase Chain Reaction
RNA Interference
siRNA
Transcriptional Activation
Tumor Growth
Xenograft Model Antitumor Assays
title Pancreatic Cancer Stem-like Cells Display Aggressive Behavior Mediated via Activation of FoxQ1
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