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Masalha M, Meningher T, Mizrahi A, Barzilai A, Tabibian-Keissar H, Gur-Wahnon D, Ben-Dov IZ, Kapenhas J, Jacob-Hirsch J, Leibowitz R, Sidi Y, Avni D. MiR-199a-3p Induces Mesenchymal to Epithelial Transition of Keratinocytes by Targeting RAP2B. Int J Mol Sci 2022; 23:ijms232315401. [PMID: 36499729 PMCID: PMC9741271 DOI: 10.3390/ijms232315401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/27/2022] [Accepted: 11/29/2022] [Indexed: 12/13/2022] Open
Abstract
Cutaneous squamous cell carcinoma (CSCC) is an epidermal skin cancer that evolves from normal epidermis along several pre-malignant stages. Previously we found specific miRNAs alterations in each step along these stages. miR-199a-3p expression decreases at the transition to later stages. A crucial step for epithelial carcinoma cells to acquire invasive capacity is the disruption of cell-cell contacts and the gain of mesenchymal motile phenotype, a process known as epithelial-to-mesenchymal transition (EMT). This study aims to study the role of decreased expression of miR-199a-3p in keratinocytes' EMT towards carcinogenesis. First, we measured miR-199a-3p in different stages of epidermal carcinogenesis. Then, we applied Photoactivatable Ribonucleoside-Enhanced Crosslinking and Immunoprecipitation (PAR-CLIP) assay to search for possible biochemical targets of miR-199a-3p and verified that Ras-associated protein B2 (RAP2B) is a bona-fide target of miR-199a-3p. Next, we analyzed RAP2B expression, in CSCC biopsies. Last, we evaluated possible mechanisms leading to decreased miR-199a-3p expression. miR-199a-3p induces a mesenchymal to epithelial transition (MET) in CSSC cells. Many of the under-expressed genes in CSCC overexpressing miR-199a-3p, are possible targets of miR-199a-3p and play roles in EMT. RAP2B is a biochemical target of miR-199a-3p. Overexpression of miR-199a-3p in CSCC results in decreased phosphorylated focal adhesion kinase (FAK). In addition, inhibiting FAK phosphorylation inhibits EMT marker genes' expression. In addition, we proved that DNA methylation is part of the mechanism by which miR-199a-3p expression is inhibited. However, it is not by the methylation of miR-199a putative promoter. These findings suggest that miR-199a-3p inhibits the EMT process by targeting RAP2B. Inhibitors of RAP2B or FAK may be effective therapeutic agents for CSCC.
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Affiliation(s)
- Moamen Masalha
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Tal Meningher
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
| | - Adi Mizrahi
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Aviv Barzilai
- Department of Dermatology, Institute of Pathology Sheba Medical Center, Tel Hashomer 52621, Israel
| | | | - Devorah Gur-Wahnon
- Laboratory of Medical Transcriptomics, Nephrology and Hypertension Services, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Iddo Z. Ben-Dov
- Laboratory of Medical Transcriptomics, Nephrology and Hypertension Services, Hadassah-Hebrew University Medical Center, Jerusalem 91120, Israel
| | - Joshua Kapenhas
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
| | | | - Raya Leibowitz
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Oncology institute, Shamir Medical Center, Zerifin 70300, Israel
| | - Yechezkel Sidi
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Dror Avni
- Laboratory of Molecular Cell Biology, Center for Cancer Research, Department of Medicine C, Sheba Medical Center, Tel Hashomer 52621, Israel
- Faculty of Medicine, Sackler School of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
- Correspondence: ; Tel.: +972-3-5307479
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CD44 loss of function sensitizes AML cells to the BCL-2 inhibitor venetoclax by decreasing CXCL12-driven survival cues. Blood 2021; 138:1067-1080. [PMID: 34115113 DOI: 10.1182/blood.2020006343] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/17/2021] [Indexed: 11/20/2022] Open
Abstract
Acute myeloid leukemia (AML) has a poor prognosis under the current standard of care. In recent years, venetoclax, a BCL-2 inhibitor, was approved to treat patients, ineligible for intensive induction chemotherapy. Complete remission rates with venetoclax-based therapies are, however, hampered by minimal residual disease (MRD) in a proportion of patients, leading to relapse. MRD is due to leukemic stem cells retained in bone marrow protective environments; activation of the CXCL12/CXCR4 pathway was shown to be relevant to this process. An important role is also played by cell adhesion molecules such as CD44, which has been shown to be crucial for AML development. Here we show that CD44 is involved in CXCL12 promotion of resistance to venetoclax-induced apoptosis in human AML cell lines and AML patient samples which could be abrogated by CD44 knockdown, knockout or blocking with an anti-CD44 antibody. Split-Venus biomolecular fluorescence complementation showed that CD44 and CXCR4 physically associate at the cell membrane upon CXCL12 induction. In the venetoclax-resistant OCI-AML3 cell line, CXCL12 promoted an increase in the proportion of cells expressing high levels of embryonic-stem-cell core transcription factors (ESC-TFs: Sox2, Oct4, Nanog), abrogated by CD44 knockdown. This ESC-TF-expressing subpopulation which could be selected by venetoclax treatment, exhibited a basally-enhanced resistance to apoptosis, and expressed higher levels of CD44. Finally, we developed a novel AML xenograft model in zebrafish, showing that CD44 knockout sensitizes OCI-AML3 cells to venetoclax treatment in vivo. Our study shows that CD44 is a potential molecular target to sensitize AML cells to venetoclax-based therapies.
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Understanding of tumourigenesis in canine mammary tumours based on cancer stem cell research. Vet J 2020; 265:105560. [PMID: 33129557 DOI: 10.1016/j.tvjl.2020.105560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 11/21/2022]
Abstract
Mammary tumours occur frequently in female dogs, where such tumours exhibit complexity when examined histologically. These tumours are composed not only of proliferative luminal epithelial cells, but also of myoepithelial cells and/or mesenchymal cells with cartilage and osseous tissues in a solitary mass. The origin of this complexed histogenesis remains speculative, but cancer stem cells (CSCs) are likely involved. CSCs possess self-renewing capacity, differentiation potential, high tumourigenicity in immunodeficient mice, and resistance to chemotherapy and radiation. These cells are at the apex of a hierarchy in cancer tissues and are involved in tumour initiation, recurrence, and metastasis. For these reasons, understanding the properties of CSCs is of paramount importance. Analysis of the characteristics of CSCs may contribute to the elucidation of the histogenesis underlying canine mammary tumours, formulation of novel CSC-targeted therapeutic strategies, and development of biomarkers for early diagnostic and prognostic applications. Here, we review research on CSCs in canine mammary tumours, focusing on: (1) identification and properties of CSCs; (2) hypotheses regarding hierarchal structures in simple type, complex type and mixed tumours of the canine mammary gland; and (3) current and prospective studies of CSC metabolism.
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Kim H, Park S, Kang BJ, Jeong Y, Lee H, Lee KH. Quantitative Single-Cell Analysis of Isolated Cancer Cells with a Microwell Array. ACS COMBINATORIAL SCIENCE 2019; 21:98-104. [PMID: 30485057 DOI: 10.1021/acscombsci.8b00151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The heterogeneous nature of tumor-cell populations suggests that quantitative analysis at the single-cell level may provide better insights into cancer biology. Specifically, detection of multiple biomarkers from a single cell offers important initial information about cellular behavior. However, conventional approaches limit biomarker detection at the single-cell level. Here, we fabricated a polymer microwell array to capture single cells from prostate-cancer cell lines and quantitatively analyzed the expression of three different cancer-related biomarkers, CD44, EpCAM, and PSMA, without a membrane protein-extraction step. The resulting information on cell-surface biomarker distributions was compared with that from other standard analytical techniques. Interestingly, a large variation in CD44-expression levels was observed when the cell-proliferation cycle was modulated. On the other hand, the expression levels of EpCAM in three different cell lines are consistent among the different analytical methods with the exception of the microarray, where it has a different substrate material to adhere to. This observation clearly emphasizes that biomarker choice and environmental control are critical for properly understanding the single-cell state.
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Affiliation(s)
- Hojun Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Sungwook Park
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Benedict J. Kang
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Youngdo Jeong
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Hyojin Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Kwan Hyi Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology (UST), Seoul 02792, Republic of Korea
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Chen DD, Ji JA, Yan HC, Huang GH, Fang XJ. Effect of CD44st and HER2 expression on the postoperative prognosis of breast cancer patients. Onco Targets Ther 2019; 12:577-585. [PMID: 30697055 PMCID: PMC6339464 DOI: 10.2147/ott.s180972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Objective CD44st is a member of the CD44 family; abnormal expression of some CD44 isoforms are closely associated with axillary lymph node metastasis, cancer progression, and patients’ prognosis. The objective of this study is to investigate the correlation between the expression of CD44st and HER2 in breast cancer and the effect on patients’ prognosis. Methods Primers were designed to target the CD44st mRNA (Gene Bank No FJ216964) which has been newly identified in a drug-resistant breast cancer cell line. The expression of CD44st and HER2 mRNA and proteins in cancerous and paracancerous tissue of postoperative breast cancer patients was detected and compared. Tissue samples were obtained from 102 cases of invasive ductal carcinoma, 19 cases of intraductal carcinoma, and 11 cases of medullary carcinoma. The correlation between CD44st and HER2 expression and clinical pathological features was examined. Results The expression rate of CD44st mRNA and protein in breast cancer tissue was 64.4% (85/132), while HER2 mRNA and protein was expressed in 22.0% (29/106) of the samples. The expression of CD44st and HER2 were low in paracancerous tissue. In breast cancer tissue, the expression rate of HER2 mRNA and protein in the CD44st-positive group was 28.2% (24/85), and 10.6% (5/47) in the CD44st-negative group. This difference was statistically significant (P=0.015). Sequencing analysis showed that the amplified CD44st gene in this study was the same as that which was previously discovered in the drug-resistant breast cancer cell line. A linear correlation was found between the expression of CD44st and HER2 (r=0.972, r2=0.945, F=2,213.51, P<0.001). The expression of CD44st and HER2 was also closely associated with luminal cancer subtypes, lymph node metastasis, and TNM stage (P<0.05), but not associated with age, pathological type, or tumor size (P>0.05). The median overall survival in the CD44st high-expression group was 51.85 months (95% CI: 48.48–55.22), which was significantly shorter than that in the CD44st low-expression group (57.61 months; 95% CI: 55.54–59.68, P=0.032). Conclusion CD44st is closely related to the expression of HER2. The expression of CD44st affects patient prognosis and is associated with lymph node metastasis, TNM staging, and molecular subtyping.
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Affiliation(s)
- Dan Dan Chen
- Department of Oncology, The Second People's Hospital of Lianyungang (Lianyungang Hospital affiliated to Bengbu Medical College), Lianyungang, Jiangsu 222000, China, ;
| | - Jun An Ji
- Department of Medical Oncology, The Gan Yu District Hospital of Lianyungang, Lianyungang, Jiangsu 222000, China
| | - Hai Cui Yan
- Department of Oncology, The Second People's Hospital of Lianyungang (Lianyungang Hospital affiliated to Bengbu Medical College), Lianyungang, Jiangsu 222000, China, ;
| | - Guan Hong Huang
- Department of Oncology, The Second People's Hospital of Lianyungang (Lianyungang Hospital affiliated to Bengbu Medical College), Lianyungang, Jiangsu 222000, China, ;
| | - Xin Jian Fang
- Department of Oncology, The Second People's Hospital of Lianyungang (Lianyungang Hospital affiliated to Bengbu Medical College), Lianyungang, Jiangsu 222000, China, ;
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Rogez B, Pascal Q, Bobillier A, Machuron F, Lagadec C, Tierny D, Le Bourhis X, Chopin V. CD44 and CD24 Expression and Prognostic Significance in Canine Mammary Tumors. Vet Pathol 2018; 56:377-388. [PMID: 30558511 DOI: 10.1177/0300985818813653] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
CD44+/CD24- phenotype has been used to identify human and canine mammary cancer stem-like cells. In canine mammary tumors, CD44+/CD24- phenotype has been associated with high grade and lymph node infiltration. However, several studies have reported opposing results regarding the clinical significance of phenotypic groups formed by the combination of CD44 and CD24 in both human and canine mammary tumors. So far, no study has investigated the correlation between these phenotypes and survival in dogs. The aim of this study was to investigate the expression and distribution of CD44 and CD24 in canine mammary carcinomas and to correlate them with histological diagnosis and survival in a well-characterized cohort. Immunohistochemistry was performed in 96 mammary carcinomas with antibodies against CD44 and CD24. Expression of CD44+ and CD44+/CD24- phenotype was detected in 75 of 96 (78%) and 63 of 96 (65.6%) carcinomas, respectively. Their expression was associated with tumor type, occurring more often in tubular complex carcinomas than in solid carcinomas. CD44+/CD24- phenotype was associated with a better overall survival ( P = .001). CD24+ expression was detected in 52 of 96 tumors (54%) and CD44-/CD24+ phenotype in 39 of 96 tumors (40.6%). Both were associated with poor clinicopathological parameters (high grade, and emboli). No correlation with overall survival was observed. CD44+/CD24- expression was associated with a better prognosis and occurred at high frequency and high level, indicating that this phenotype is not suitable to detect cancer stem cells in canine mammary carcinomas. Although further studies are needed, our results suggest that CD24 may constitute a valuable marker of poor prognosis for canine mammary carcinomas.
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Affiliation(s)
- Bernadette Rogez
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Quentin Pascal
- 2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Audrey Bobillier
- 3 VetAgro Sup, Campus Vétérinaire de Lyon, Marcy l'Etoile, France
| | - François Machuron
- 4 University of Lille, CHU Lille, EA 2694-Santé publique: épidémiologie et qualité des soins, Lille, France
| | - Chann Lagadec
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France
| | - Dominique Tierny
- 2 OCR (Oncovet Clinical Research), Parc Eurasanté, Lille Métropole, Loos, France
| | - Xuefen Le Bourhis
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,These authors contributed equally to this work
| | - Valérie Chopin
- 1 University of Lille, INSERM U908 "Cell Plasticity and Cancer," Villeneuve d'Ascq, France.,5 University of Picardie Jules Verne, UFR Sciences, Amiens, France.,These authors contributed equally to this work
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Cheng CC, Shi LH, Wang XJ, Wang SX, Wan XQ, Liu SR, Wang YF, Lu Z, Wang LH, Ding Y. Stat3/Oct-4/c-Myc signal circuit for regulating stemness-mediated doxorubicin resistance of triple-negative breast cancer cells and inhibitory effects of WP1066. Int J Oncol 2018; 53:339-348. [PMID: 29750424 DOI: 10.3892/ijo.2018.4399] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/11/2018] [Indexed: 01/06/2023] Open
Abstract
Doxorubicin (Dox) is widely used in the treatment of triple-negative breast cancer cells (TNBCs), however resistance limits its effectiveness. Cancer stem cells (CSCs) are associated with Dox resistance in MCF-7 estrogen receptor positive breast cancer cells. Signal transducer and activator of transcription 3 (Stat3) may functionally shift non-CSCs towards CSCs. However, whether Stat3 drives the formation of CSCs during the development of resistance in TNBC, and whether a Stat3 inhibitor reverses CSC-mediated Dox resistance, remains to be elucidated. In the present study, human MDA-MB-468 and murine 4T1 mammary carcinoma cell lines with the typical characteristics of TNBCs, were compared with estrogen receptor-positive MCF-7 cells as a model system. The MTT assay was used to detect cytotoxicity of Dox. In addition, the expression levels of CSC-specific markers and transcriptional factors were measured by western blotting, immunofluorescence staining and flow cytometry. The mammosphere formation assay was used to detect stem cell activity. Under long-term continuous treatment with Dox at a low concentration, TNBC cultures not only exhibited a drug-resistant phenotype, but also showed CSC properties. These Dox-resistant TNBC cells showed activation of Stat3 and high expression levels of pluripotency transcription factors octamer-binding transcription factor-4 (Oct-4) and c-Myc, which was different from the high expression of superoxide dismutase 2 (Sox2) in Dox-resistant MCF-7 cells. WP1066 inhibited the phosphorylation of Stat3, and decreased the expression of Oct-4 and c-Myc, leading to a reduction in the CD44-positive cell population, and restoring the sensitivity of the cells to Dox. Taken together, a novel signal circuit of Stat3/Oct-4/c-Myc was identified for regulating stemness-mediated Dox resistance in TNBC. The Stat3 inhibitor WP1066 was able to overcome the resistance to Dox through decreasing the enrichment of CSCs, highlighting the therapeutic potential of WP1066 as a novel sensitizer of Dox-resistant TNBC.
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Affiliation(s)
- Cong-Cong Cheng
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Li-Hong Shi
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Xue-Jian Wang
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Shu-Xiao Wang
- Department of Pharmacology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Xiao-Qing Wan
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Shu-Rong Liu
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Yi-Fei Wang
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Zhong Lu
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Li-Hua Wang
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
| | - Yi Ding
- Laboratory of Molecular Oncology, Weifang Medical College, Weifang, Shandong 261053, P.R. China
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Identification and characterization of cancer stem cells in canine mammary tumors. Acta Vet Scand 2016; 58:86. [PMID: 27993142 PMCID: PMC5168714 DOI: 10.1186/s13028-016-0268-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 12/05/2016] [Indexed: 12/18/2022] Open
Abstract
Cancer stem cells (CSC) represent a small subpopulation of cells in malignant tumors that possess the unique ability to self-renew, differentiate and resist chemo- and radiotherapy. These cells have been postulated to be the basis for some of the difficulties in treating cancer, and therefore, numerous approaches have been developed to specifically target and eliminate CSC in diverse types of cancer, including breast cancer. Spontaneously occurring mammary tumors in canines share clinical and molecular similarities with the human counterpart, making the dog a potentially powerful model for the study of human breast cancer and clinical trials. Studies focused on canine mammary CSC might therefore enhance our understanding of the biology and possible treatment of the disease in both dogs and humans. In this review, we discuss various approaches currently in use to isolate and characterize canine mammary CSC.
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Caceres S, Peña L, Lacerda L, Illera MJ, de Andres PJ, Larson RA, Gao H, Debeb BG, Woodward WA, Reuben JM, Illera JC. Canine cell line, IPC-366, as a good model for the study of inflammatory breast cancer. Vet Comp Oncol 2016; 15:980-995. [DOI: 10.1111/vco.12238] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 02/29/2016] [Accepted: 03/29/2016] [Indexed: 12/20/2022]
Affiliation(s)
- S. Caceres
- Department of Animal Physiology; Complutense University of Madrid (UCM); Madrid Spain
| | - L. Peña
- Department of Animal Medicine, Surgery and Pathology, School of Veterinary Medicine; Complutense University of Madrid (UCM); Madrid Spain
| | - L. Lacerda
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - M. J. Illera
- Department of Animal Physiology; Complutense University of Madrid (UCM); Madrid Spain
| | - P. J. de Andres
- Department of Animal Medicine, Surgery and Pathology, School of Veterinary Medicine; Complutense University of Madrid (UCM); Madrid Spain
| | - R. A. Larson
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - H. Gao
- Department of Hematopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - B. G. Debeb
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - W. A. Woodward
- Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - J. M. Reuben
- Department of Hematopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - J. C. Illera
- Department of Animal Physiology; Complutense University of Madrid (UCM); Madrid Spain
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Chen J, Pan Y, He B, Ying H, Wang F, Sun H, Deng Q, Liu X, Lin K, Peng H, Cho WC, Wang S. Inhibition of CD147 expression by RNA interference reduces proliferation, invasion and increases chemosensitivity in cancer stem cell-like HT-29 cells. Int J Oncol 2015; 47:1476-84. [PMID: 26316167 DOI: 10.3892/ijo.2015.3138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/20/2015] [Indexed: 11/05/2022] Open
Abstract
The association between CD147 and cancer stem cells (CSCs) provides a new angle for cancer treatments. The aim of this study was to investigate the biological roles of CD147 in colorectal CSCs. The Oct4-green fluorescent protein (GFP) vector was used to isolate CSCs and pYr-mir30-shRNA was used to generate short hairpin RNA (shRNA) specifically for CD147. After RNA interference (RNAi), CD147 was evaluated by reverse transcription‑quantitative PCR and western blot analysis, and its biological functions were assessed by MTT and invasion assays. The results showed that the differentiation of isolated CSC-like HT-29 cells was blocked and these cells were highly positive for CD44 and CD147. RNAi-mediated CD147 silencing reduced the expression of CD147 at both mRNA and protein levels. Moreover, the activities of proliferation and invasion were decreased obviously in CSCs. Knockdown of CD147 increased the chemosensitivity of CSC-like cells to gemcitabine, cisplatin, docetaxel at 0.1, 1 and 10 µM respectively, however, there was no significant difference among the three groups to paclitaxel at 10 µM. In conclusion, these results suggest that CD147 plays an important role in colorectal CSCs and might be regarded as a novel CSC-specific targeted strategy against colorectal cancer.
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Affiliation(s)
- Jie Chen
- Department of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, P.R. China
| | - Yuqin Pan
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Bangshun He
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Houqun Ying
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Feng Wang
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Huiling Sun
- Department of Life Sciences, Nanjing Normal University, Nanjing, Jiangsu, P.R. China
| | - Qiwen Deng
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Xian Liu
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Kang Lin
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Hongxin Peng
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, P.R. China
| | - Shukui Wang
- Central Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, P.R. China
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Im KS, Jang YG, Shin JI, Kim NH, Lim HY, Lee SM, Kim JH, Sur JH. CD44+/CD24– Cancer Stem Cells Are Associated With Higher Grade of Canine Mammary Carcinomas. Vet Pathol 2015; 52:1041-4. [DOI: 10.1177/0300985815593121] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The CD44+/CD24– phenotype identifies cancer stem cell (CSC) properties in canine mammary carcinoma (MC); however, the histopathological features associated with this phenotype remain to be elucidated. Here, we determined whether the CD44+/CD24– phenotype was associated with hormonal receptor (HR; estrogen receptor [ER] and/or progesterone receptor [PR]) status and/or triple (ER, PR, and human epithelial growth factor receptor 2)–negative (TN) subtype; conventional histological evaluation was also performed. We found that, as single markers, both CD44+ and CD24+ were associated with less aggressive histological types, low grade, and a non-TN subtype; both markers were associated with HR positivity. On the other hand, a CD44+/CD24– phenotype was associated with higher grade of carcinoma. Therefore, our results suggest that immunohistochemical phenotyping for CD44/CD24 is useful for the evaluation of tumor behavior as well as CSC-like properties in canine MCs.
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Affiliation(s)
- K. S. Im
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, Konkuk University, Seoul, Korea
- These authors contributed equally to the research and are joint first authors
| | - Y. G. Jang
- Department of Veterinary Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Korea
- These authors contributed equally to the research and are joint first authors
| | - J. I. Shin
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, Konkuk University, Seoul, Korea
| | - N. H. Kim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, Konkuk University, Seoul, Korea
| | - H. Y. Lim
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, Konkuk University, Seoul, Korea
| | - S. M. Lee
- Department of Veterinary Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Korea
| | - J. H. Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St Paul, MN, USA
| | - J. H. Sur
- Department of Veterinary Pathology, Small Animal Tumor Diagnostic Center, Konkuk University, Seoul, Korea
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Yang Y, Fan Y, Qi Y, Liu D, Wu K, Wen F, Zhao S. Side population cells separated from A549 lung cancer cell line possess cancer stem cell-like properties and inhibition of autophagy potentiates the cytotoxic effect of cisplatin. Oncol Rep 2015; 34:929-35. [PMID: 26081992 DOI: 10.3892/or.2015.4057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 05/05/2015] [Indexed: 11/06/2022] Open
Abstract
Recent studies have suggested that cancer stem cells (CSCs) may be responsible for tumorigenesis and contribute to resistance to chemotherapy. Side population (SP) cells are thought to be enriched for CSCs in most types of human tumors. Therefore, the aim of the present study was to sort SP cells using an A549 lung cancer cell line, identify the cancer stem cell-like properties of SP and determine the role of autophagy in the survival of SP cells of lung cancer. SP cells were isolated by fluorescence-activated cell sorter (FACS) from A549 lung cancer cells, and the CSC-like properties were verified through confocal fluorescence imaging, sphere formation assays, cell proliferation and colony formation assay, gene expression in vitro and tumor formation in vivo. The role of autophagy in the survival of SP cells was assessed by western blotting and flow cytometric analysis. A549 lung cancer cells contained 1.10% SP cells. SP cells showed higher abilities of sphere and colony formation, cell proliferation and self-renewal. Moreover, compared to non-SP, SP cells demonstrated a higher mRNA expression of stem cell markers (MDR1, ABCG2 and OCT-4). The clone formation efficiency of SP cells was significantly higher than that non-SP cells under the same conditions. Expression of autophagosomes in SP cells was markedly lower than that in non-SP cells. However, the level of autophagy in SP cells was found to be markedly increased in the presence of cisplatin. In addition, inhibition of autophagy enhanced the effects of apoptosis induced by cisplatin. SP cells from the A549 lung cancer cell line possessed the properties of CSCs and were used to investigate the further characteristics of lung CSCs. SP cells were more resistant to chemotherapy and inhibition of autophagy enhanced the effects of apoptosis induced by the chemotherapeutic agent, cisplatin. These results may provide insight into novel therapeutic targets.
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Affiliation(s)
- Yang Yang
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yuxia Fan
- Department of Thyroid Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yu Qi
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Donglei Liu
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Kai Wu
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Fengbiao Wen
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Song Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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Barbieri F, Thellung S, Ratto A, Carra E, Marini V, Fucile C, Bajetto A, Pattarozzi A, Würth R, Gatti M, Campanella C, Vito G, Mattioli F, Pagano A, Daga A, Ferrari A, Florio T. In vitro and in vivo antiproliferative activity of metformin on stem-like cells isolated from spontaneous canine mammary carcinomas: translational implications for human tumors. BMC Cancer 2015; 15:228. [PMID: 25884842 PMCID: PMC4397725 DOI: 10.1186/s12885-015-1235-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 03/20/2015] [Indexed: 12/21/2022] Open
Abstract
Background Cancer stem cells (CSCs) are considered the cell subpopulation responsible for breast cancer (BC) initiation, growth, and relapse. CSCs are identified as self-renewing and tumor-initiating cells, conferring resistance to chemo- and radio-therapy to several neoplasias. Nowadays, th (about 10mM)e pharmacological targeting of CSCs is considered an ineludible therapeutic goal. The antidiabetic drug metformin was reported to suppress in vitro and in vivo CSC survival in different tumors and, in particular, in BC preclinical models. However, few studies are available on primary CSC cultures derived from human postsurgical BC samples, likely because of the limited amount of tissue available after surgery. In this context, comparative oncology is acquiring a relevant role in cancer research, allowing the analysis of larger samples from spontaneous pet tumors that represent optimal models for human cancer. Methods Isolation of primary canine mammary carcinoma (CMC) cells and enrichment in stem-like cell was carried out from fresh tumor specimens by culturing cells in stem-permissive conditions. Phenotypic and functional characterization of CMC-derived stem cells was performed in vitro, by assessment of self-renewal, long-lasting proliferation, marker expression, and drug sensitivity, and in vivo, by tumorigenicity experiments. Corresponding cultures of differentiated CMC cells were used as internal reference. Metformin efficacy on CMC stem cell viability was analyzed both in vitro and in vivo. Results We identified a subpopulation of CMC cells showing human breast CSC features, including expression of specific markers (i.e. CD44, CXCR4), growth as mammospheres, and tumor-initiation in mice. These cells show resistance to doxorubicin but were highly sensitive to metformin in vitro. Finally, in vivo metformin administration significantly impaired CMC growth in NOD-SCID mice, associated with a significant depletion of CSCs. Conclusions Similarly to the human counterpart, CMCs contain stem-like subpopulations representing, in a comparative oncology context, a valuable translational model for human BC, and, in particular, to predict the efficacy of antitumor drugs. Moreover, metformin represents a potential CSC-selective drug for BC, as effective (neo-)adjuvant therapy to eradicate CSC in mammary carcinomas of humans and animals. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1235-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Federica Barbieri
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy. .,Centro di Eccellenza per la Ricerca Biomedica (CEBR), University of Genova, Genoa, Italy.
| | - Stefano Thellung
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy. .,Centro di Eccellenza per la Ricerca Biomedica (CEBR), University of Genova, Genoa, Italy.
| | - Alessandra Ratto
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, and National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Genoa, Italy.
| | - Elisa Carra
- Dipartimento di Medicina Sperimentale, University of Genova, Genoa, Italy.
| | - Valeria Marini
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Carmen Fucile
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Adriana Bajetto
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Alessandra Pattarozzi
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Roberto Würth
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Monica Gatti
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Chiara Campanella
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, and National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Genoa, Italy.
| | - Guendalina Vito
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, and National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Genoa, Italy.
| | - Francesca Mattioli
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy.
| | - Aldo Pagano
- Dipartimento di Medicina Sperimentale, University of Genova, Genoa, Italy. .,IRCCS AOU San Martino - IST, Genoa, Italy.
| | | | - Angelo Ferrari
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, and National Reference Center of Veterinary and Comparative Oncology (CEROVEC), Genoa, Italy.
| | - Tullio Florio
- Dipartimento di Medicina Interna, Sezione di Farmacologia, University of Genova, Genoa, Italy. .,Centro di Eccellenza per la Ricerca Biomedica (CEBR), University of Genova, Genoa, Italy.
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14
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Guth AM, Deogracias M, Dow SW. Comparison of cancer stem cell antigen expression by tumor cell lines and by tumor biopsies from dogs with melanoma and osteosarcoma. Vet Immunol Immunopathol 2014; 161:132-40. [PMID: 25146881 DOI: 10.1016/j.vetimm.2014.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 04/25/2014] [Accepted: 07/17/2014] [Indexed: 12/18/2022]
Abstract
Cancer stem cells (CSCs) represent a small subpopulation of tumor cells that play a critical role in initiating and sustaining tumor growth. However, we currently have an incomplete understanding of the expression patterns of CSC antigens in tumors of dogs, nor do we understand how expression of these antigens vary between tumor cell lines and tumor biopsy specimens. Therefore, we used flow cytometry and commonly reported CSC surface and intracellular markers to evaluate the phenotype and overall frequency of CSC subpopulations in tumor cell lines and primary tumor biopsy samples from dogs with melanoma and osteosarcoma. We found that cells expressing common CSC antigens were rare in tumor cell lines, with the exception of tumor cells expressing CD44 and CD90. In contrast, tumor cells expressing conventional CSC antigens such as CD133, CD34, CD44, CD24 and Oct3/4 were much more common in tumor biopsy samples. Notably, the frequency and types of putative CSC subpopulations were very similar in biopsy samples from dogs with either melanoma or osteosarcoma. Our results suggest that the tumor microenvironment significantly influences CSC subpopulations within tumors and that tumor cell lines may not accurately reflect the actual frequency or types of CSC subpopulations present in tumor tissues in vivo.
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Affiliation(s)
- Amanda M Guth
- Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Ft. Collins, CO 80523, United States
| | - Mike Deogracias
- Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Ft. Collins, CO 80523, United States
| | - Steven W Dow
- Animal Cancer Center, Department of Clinical Sciences, Colorado State University, Ft. Collins, CO 80523, United States.
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15
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Dickinson P. Advances in diagnostic and treatment modalities for intracranial tumors. J Vet Intern Med 2014; 28:1165-85. [PMID: 24814688 PMCID: PMC4857954 DOI: 10.1111/jvim.12370] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 02/24/2014] [Accepted: 03/25/2014] [Indexed: 12/23/2022] Open
Abstract
Intracranial neoplasia is a common clinical condition in domestic companion animals, particularly in dogs. Application of advances in standard diagnostic and therapeutic modalities together with a broad interest in the development of novel translational therapeutic strategies in dogs has resulted in clinically relevant improvements in outcome for many canine patients. This review highlights the status of current diagnostic and therapeutic approaches to intracranial neoplasia and areas of novel treatment currently in development.
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Affiliation(s)
- P.J. Dickinson
- Department of Surgical and Radiological SciencesSchool of Veterinary MedicineUniversity of California DavisDavisCA
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16
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Michishita M, Ezaki S, Ogihara K, Naya Y, Azakami D, Nakagawa T, Sasaki N, Arai T, Shida T, Takahashi K. Identification of tumor-initiating cells in a canine hepatocellular carcinoma cell line. Res Vet Sci 2014; 96:315-22. [PMID: 24534130 DOI: 10.1016/j.rvsc.2014.01.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 12/13/2013] [Accepted: 01/26/2014] [Indexed: 12/27/2022]
Abstract
Tumor-initiating cells (TICs) or cancer stem cells (CSCs), a small subset of tumor cells, are involved in tumor initiation, progression, recurrence and metastasis. In human hepatocellular carcinoma (HCC), TICs are enriched with cell surface markers and have the ability to self-renew and differentiate tumors at a high frequency. We established a canine HCC cell line, HCC930599, and analyzed it for stem and progenitor cell marker expression using flow cytometry. HCC930599 showed high CD44 and CD29, moderate CD90, and low CD133, CD34, CD24, CD117, and CD13 expression. CD90(+)CD44(+) and CD90(-)CD44(+) cells were characterized using the in vitro sphere assay and an in vivo transplant model. CD90(+)CD44(+) cells acquired enhanced self-renewal capacity, proliferative activity and tumourigenicity compared with CD90(-)CD44(+) cells, suggesting that TICs exist in the HCC930599 cell line and that CD90 is a marker for enriched TICs. Understanding TIC characteristics may help elucidate hepatic carcinogenesis and HCC therapy development.
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Affiliation(s)
- Masaki Michishita
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan.
| | - Shiori Ezaki
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Kikumi Ogihara
- Department of Pathology, School of Life and Environmental Science, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Yuko Naya
- Department of Pathology, School of Life and Environmental Science, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Daigo Azakami
- Department of Veterinary Nursing, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Takayuki Nakagawa
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan
| | - Nobuo Sasaki
- Laboratory of Veterinary Surgery, Graduate School of Agricultural and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo, Tokyo 113-8657, Japan
| | - Toshiro Arai
- Department of Veterinary Biochemistry, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
| | - Takuo Shida
- Laboratory of Veterinary Radiology, School of Veterinary Medicine, Azabu University, 1-17-7 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
| | - Kimimasa Takahashi
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, Nippon Veterinary and Life Science University, 1-7-1 Kyounan-cho, Musashino, Tokyo 180-8602, Japan
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17
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Flow cytometric analysis for detection of tumor-initiating cells in feline mammary carcinoma cell lines. Vet Immunol Immunopathol 2013; 156:73-81. [DOI: 10.1016/j.vetimm.2013.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 08/13/2013] [Accepted: 08/19/2013] [Indexed: 01/06/2023]
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18
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Immunodetection of cells with a CD44+/CD24- phenotype in canine mammary neoplasms. BMC Vet Res 2013; 9:205. [PMID: 24119896 PMCID: PMC3852738 DOI: 10.1186/1746-6148-9-205] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 10/07/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) are able to self-renew and to form metastases. Using flow cytometry, CSCs were detected in canine mammary tumors as cells CD44(+) and CD24(-). The aim of this study was to detect these CSCs by immunohistochemistry and correlate their frequency with canine mammary neoplasm grade and histopathological type.130 mammary neoplasm samples were selected from tissue blocks at the Department of Pathology at UNESP and classified according to (BJVP 4:153-180, 2011). These samples were composed by adenomas, lymph node metastases, solid carcinomas grades II and III, tubular, papillary and carcinomas in mixed tumor grades I, II and III. Immunohistochemistry was performed with antibodies against CD44 and CD24. Linear regression was performed using Pearson's correlation test. RESULTS The value at CD44 was positive and CD24 becomes zero was 46.75%. Cells with a CD44(+)/CD24(-) phenotype were detected in 40 out of 130 samples with an advantage of high grade tumors (II and III) and metastases among tubular, papillary and carcinomas in mixed tumors. In these samples, percentages of cells stained by CD44 and CD24 antibodies were 62.2% and 0%, respectively. Published reports usually correlate grade III tumors with the expression of CD44 but not with CD24 expression. Studies using flow cytometry have found CSC frequencies similar to those found in our study. CONCLUSIONS Immunohistochemistry was found to be a reliable technique for the detection of CSCs in canine mammary neoplasms, and the frequency of these cells positively correlates with grades II and III tumors (poor prognosis).
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19
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Milovancev M, Hilgart-Martiszus I, McNamara MJ, Goodall CP, Seguin B, Bracha S, Wickramasekara SI. Comparative analysis of the surface exposed proteome of two canine osteosarcoma cell lines and normal canine osteoblasts. BMC Vet Res 2013; 9:116. [PMID: 23758893 PMCID: PMC3684535 DOI: 10.1186/1746-6148-9-116] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 06/05/2013] [Indexed: 11/10/2022] Open
Abstract
Background Osteosarcoma (OSA) is the most common primary bone tumor of dogs and carries a poor prognosis despite aggressive treatment. An improved understanding of the biology of OSA is critically needed to allow for development of novel diagnostic, prognostic, and therapeutic tools. The surface-exposed proteome (SEP) of a cancerous cell includes a multifarious array of proteins critical to cellular processes such as proliferation, migration, adhesion, and inter-cellular communication. The specific aim of this study was to define a SEP profile of two validated canine OSA cell lines and a normal canine osteoblast cell line utilizing a biotinylation/streptavidin system to selectively label, purify, and identify surface-exposed proteins by mass spectrometry (MS) analysis. Additionally, we sought to validate a subset of our MS-based observations via quantitative real-time PCR, Western blot and semi-quantitative immunocytochemistry. Our hypothesis was that MS would detect differences in the SEP composition between the OSA and the normal osteoblast cells. Results Shotgun MS identified 133 putative surface proteins when output from all samples were combined, with good consistency between biological replicates. Eleven of the MS-detected proteins underwent analysis of gene expression by PCR, all of which were actively transcribed, but varied in expression level. Western blot of whole cell lysates from all three cell lines was effective for Thrombospondin-1, CYR61 and CD44, and indicated that all three proteins were present in each cell line. Semi-quantitative immunofluorescence indicated that CD44 was expressed at much higher levels on the surface of the OSA than the normal osteoblast cell lines. Conclusions The results of the present study identified numerous differences, and similarities, in the SEP of canine OSA cell lines and normal canine osteoblasts. The PCR, Western blot, and immunocytochemistry results, for the subset of proteins evaluated, were generally supportive of the mass spectrometry data. These methods may be applied to other cell lines, or other biological materials, to highlight unique and previously unrecognized differences between samples. While this study yielded data that may prove useful for OSA researchers and clinicians, further refinements of the described techniques are expected to yield greater accuracy and produce a more thorough SEP analysis.
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Affiliation(s)
- Milan Milovancev
- Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA.
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20
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Borena BM, Bussche L, Burvenich C, Duchateau L, Van de Walle GR. Mammary stem cell research in veterinary science: an update. Stem Cells Dev 2013; 22:1743-51. [PMID: 23360296 DOI: 10.1089/scd.2012.0677] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The mammary gland is an organ with a remarkable regenerative capacity that can undergo multiple cycles of proliferation, lactation, and involution. Growing evidence suggests that these changes are driven by the coordinated division and differentiation of mammary stem cell populations (MaSC). Whereas information regarding MaSC and their role in comparative mammary gland physiology is readily available in human and mice, such information remains scarce in most veterinary mammal species such as cows, horses, sheep, goats, pigs, and dogs. We believe that a better knowledge on the MaSC in these species will not only help to gain more insights into mammary gland (patho) physiology in veterinary medicine, but will also be of value for human medicine. Therefore, this review summarizes the current knowledge on stem cell isolation and characterization in different mammals of veterinary importance.
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Affiliation(s)
- Bizunesh M Borena
- Department of Comparative Physiology and Biometrics, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
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21
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Pang LY, Blacking TM, Else RW, Sherman A, Sang HM, Whitelaw BA, Hupp TR, Argyle DJ. Feline mammary carcinoma stem cells are tumorigenic, radioresistant, chemoresistant and defective in activation of the ATM/p53 DNA damage pathway. Vet J 2012; 196:414-23. [PMID: 23219486 PMCID: PMC3696732 DOI: 10.1016/j.tvjl.2012.10.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 10/10/2012] [Accepted: 10/13/2012] [Indexed: 01/16/2023]
Abstract
Cancer stem cells were identified in a feline mammary carcinoma cell line by demonstrating expression of CD133 and utilising the tumour sphere assay. A population of cells was identified that had an invasive, mesenchymal phenotype, expressed markers of pluripotency and enhanced tumour formation in the NOD-SCID mouse and chick embryo models. This population of feline mammary carcinoma stem cells was resistant to chemotherapy and radiation, possibly due to aberrant activation of the ATM/p53 DNA damage pathway. Epithelial–mesenchymal transition was a feature of the invasive phenotype. These data demonstrate that cancer stem cells are a feature of mammary cancer in cats.
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Affiliation(s)
- L Y Pang
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Edinburgh EH25 9RG, UK.
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Zhang CL, Liu B, Yang YL, Su QJ, Shi M, Han JP, Qian Z, Dong L, Ha YD. Clinicopathologic significance of expression of CD44 +/ALDH1 + cancer stem cells in colorectal carcinoma. Shijie Huaren Xiaohua Zazhi 2012; 20:3005-3009. [DOI: 10.11569/wcjd.v20.i31.3005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To observe the expression of CD44+/ALDH1+ cancer stem cells in colorectal carcinoma and to analyze its clinicopathologic significance.
METHODS: Tissue chip technology and immunohistochemistry were used to detect the expression of CD44+, ALDH1+, and CD44+/ALDH1+ cells in colorectal carcinoma, colorectal adenoma and normal colorectal mucosa.
RESULTS: The expression of CD44 and ALAH1 was obviously higher in colorectal carcinoma than in colorectal adenoma and normal mucosa (all P < 0.05). The positive rates of CD44 and ALAH1 expression were related to tumor pathologic grade, invasion, and lymph node metastasis (all P < 0.05). The expression of CD44+/ALDH+ cells was obviously higher in colorectal carcinoma than in normal mucosa and adenoma (both P < 0.05), and the positive rate of CD44+/ALDH+ cells was negatively correlated with tumor differentiation.
CONCLUSION: CD44/ALDH can be used as valuable markers for colorectal cancer stem cells and may be a reliable parameter for evaluation of early relapse and metastasis of colorectal cancer.
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23
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Cheng W, Liu T, Wan X, Gao Y, Wang H. MicroRNA-199a targets CD44 to suppress the tumorigenicity and multidrug resistance of ovarian cancer-initiating cells. FEBS J 2012; 279:2047-59. [PMID: 22498306 DOI: 10.1111/j.1742-4658.2012.08589.x] [Citation(s) in RCA: 190] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In ovarian cancer, CD44(+) /CD117(+) stem cells, also known as cancer-initiating cells (CICs), are highly proliferative, have a low degree of differentiation, and are resistant to chemotherapeutics. Therefore, the CD44(+) /CD117(+) subpopulation is thought to be an important target for novel therapeutic strategies. In this study, we investigated the role of microRNA-199a (miR-199a) in ovarian cancer stem cells. Luciferase reporter gene assays confirmed that miR-199a targets CD44 via an miR-199a-binding site in the 3'-UTR. CD44(+) /CD117(+) ovarian CICs were enriched from human primary ovarian tumor tissues and confirmed by flow cytometric sorting. miR-199a was cloned and transfected into ovarian CICs. CD44 mRNA and protein expression was significantly decreased in miR-199a-transfected ovarian CICs as compared with miR-199a mutant-transfected and untransfected cells. Cell cycle analysis, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide proliferation assays, the colony formation assay and the transwell migration assay indicated that miR-199a significantly affected cell cycle regulation and suppressed the proliferation and invasive capacity of ovarian CICs in vitro. miR-199a significantly increased the chemosensitivity of ovarian CICs to cisplatin, pacitaxel, and adriamycin, and reduced mRNA expression of the multidrug resistance gene ABCG2 as compared with miR-199a mutant-transfected and untransfected cells. The expression of stemness markers was also significantly reduced in miR-199a-transfected CICs as compared with miR-199a mutant-transfected and untransfected ovarian cells. Furthermore, xenograft experiments confirmed that miR-199a suppressed the growth of xenograft tumors formed by ovarian CICs in vivo. Thus, expression of endogenous mature miR-199a may prevent tumorigenesis in human ovarian cancer by regulating expression of its target gene CD44.
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Affiliation(s)
- Weiwei Cheng
- International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University, China
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Isolation of stem-like cells from spontaneous feline mammary carcinomas: Phenotypic characterization and tumorigenic potential. Exp Cell Res 2012; 318:847-60. [DOI: 10.1016/j.yexcr.2012.02.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 02/06/2012] [Accepted: 02/07/2012] [Indexed: 12/21/2022]
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Pang LY, Bergkvist GT, Cervantes-Arias A, Yool DA, Muirhead R, Argyle DJ. Identification of tumour initiating cells in feline head and neck squamous cell carcinoma and evidence for gefitinib induced epithelial to mesenchymal transition. Vet J 2012; 193:46-52. [PMID: 22342216 DOI: 10.1016/j.tvjl.2012.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 11/23/2011] [Accepted: 01/07/2012] [Indexed: 01/16/2023]
Abstract
Feline oral squamous cell carcinoma is considered a highly invasive cancer that carries a high level of morbidity. Despite aggressive surgery, patients often succumb to disease, the tumour having inherent insensitivity to radiation and chemotherapy. In this study we sought to identify cells within the feline SCC1 line that have stem cell properties, including inherent resistance mechanisms. When feline cells were subjected to harsh growth conditions, they formed sphere colonies consistent with a stem cell phenotype. Utilising CD133, we were able to identify a small fraction of cells within the population that had enhanced sphere-forming ability, reduced sensitivity to radiation and conventional chemotherapy and demonstrated resistance to the EGFR-targeting drug, gefitinib. In addition, long-term culture of feline SSC1 cells in gefitinib caused a change in cell morphology and gene expression reminiscent of an epithelial to mesenchymal transition. Taken together, these results suggest that feline SCC may be driven by small subset of cancer stem cells.
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Affiliation(s)
- L Y Pang
- Royal (Dick) School of Veterinary Studies and Roslin Institute, The University of Edinburgh, Easter Bush, Midlothian EH25 9RG, UK.
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Blacking TM, Waterfall M, Samuel K, Argyle DJ. Flow cytometric techniques for detection of candidate cancer stem cell subpopulations in canine tumour models. Vet Comp Oncol 2011; 10:252-73. [DOI: 10.1111/j.1476-5829.2011.00293.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Qi H, Xue B. Role of early growth response 1 in liver injury. Shijie Huaren Xiaohua Zazhi 2011; 19:1914-1921. [DOI: 10.11569/wcjd.v19.i18.1914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Liver injury is a sophisticated pathophysiological process caused by many factors. Currently, the role of early growth response 1 (EGR1) in liver injury is still controversial. Some studies show that EGR1 can amplify the systemic inflammatory response and promote apoptosis in galactosamine/lipopolysaccharide-induced acute liver injury and alpha-naphthylisothiocyanate (ANIT)-induced intrahepatic cholestasis as well as other non-liver injuries, while some other studies indicate that EGR1 protects the liver from CCl4 exposure by regulating the expression of inducible nitric oxide synthase, cyclooxygenase-2, and tumor necrosis factor-α-regulated genes that have hepatoprotective function.
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