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Schmidt M, Avagyan S, Reiche K, Binder H, Loeffler-Wirth H. A Spatial Transcriptomics Browser for Discovering Gene Expression Landscapes across Microscopic Tissue Sections. Curr Issues Mol Biol 2024; 46:4701-4720. [PMID: 38785552 PMCID: PMC11119626 DOI: 10.3390/cimb46050284] [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: 03/25/2024] [Revised: 04/30/2024] [Accepted: 05/03/2024] [Indexed: 05/25/2024] Open
Abstract
A crucial feature of life is its spatial organization and compartmentalization on the molecular, cellular, and tissue levels. Spatial transcriptomics (ST) technology has opened a new chapter of the sequencing revolution, emerging rapidly with transformative effects across biology. This technique produces extensive and complex sequencing data, raising the need for computational methods for their comprehensive analysis and interpretation. We developed the ST browser web tool for the interactive discovery of ST images, focusing on different functional aspects such as single gene expression, the expression of functional gene sets, as well as the inspection of the spatial patterns of cell-cell interactions. As a unique feature, our tool applies self-organizing map (SOM) machine learning to the ST data. Our SOM data portrayal method generates individual gene expression landscapes for each spot in the ST image, enabling its downstream analysis with high resolution. The performance of the spatial browser is demonstrated by disentangling the intra-tumoral heterogeneity of melanoma and the microarchitecture of the mouse brain. The integration of machine-learning-based SOM portrayal into an interactive ST analysis environment opens novel perspectives for the comprehensive knowledge mining of the organization and interactions of cellular ecosystems.
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Affiliation(s)
- Maria Schmidt
- Interdisciplinary Centre for Bioinformatics (IZBI), Leipzig University, Härtelstr. 16-18, 04107 Leipzig, Germany; (M.S.); (H.B.)
| | - Susanna Avagyan
- Armenian Bioinformatics Institute, 3/6 Nelson Stepanyan Str., Yerevan 0062, Armenia
| | - Kristin Reiche
- Department of Diagnostics, Fraunhofer Institute for Cell Therapy and Immunology (IZI), Perlickstrasse 1, 04103 Leipzig, Germany
- Institute for Clinical Immunology, University Hospital of Leipzig, 04103 Leipzig, Germany
| | - Hans Binder
- Interdisciplinary Centre for Bioinformatics (IZBI), Leipzig University, Härtelstr. 16-18, 04107 Leipzig, Germany; (M.S.); (H.B.)
- Armenian Bioinformatics Institute, 3/6 Nelson Stepanyan Str., Yerevan 0062, Armenia
| | - Henry Loeffler-Wirth
- Interdisciplinary Centre for Bioinformatics (IZBI), Leipzig University, Härtelstr. 16-18, 04107 Leipzig, Germany; (M.S.); (H.B.)
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2
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Uen W, Tseng T, Wu CP, Lee S. Detachment stress mediated bioenergetic switch of malignant melanoma cells into anti-Warburg phenotype. Aging (Albany NY) 2022; 14:5511-5522. [PMID: 35802540 PMCID: PMC9320547 DOI: 10.18632/aging.204164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/27/2022] [Indexed: 11/25/2022]
Abstract
One of the biological features of cancer cells is their aerobic glycolysis by extensive glucose fermentation to harvest energy, so called Warburg effect. Melanoma is one of the most aggressive human cancers with poor prognosis and high mortality for its high metastatic ability. During the metastatic process, the metastatic tumor cells should survive under detachment stress. However, whether the detachment stress could affect the tumor phenotype is worthy to investigate. We had established the cell model of human melanoma cells under detachment stress, which mimicked circulating melanoma. It had been demonstrated that the detachment stress altered melanoma cell activities, malignancy, and drug sensitivity. In this study, we found that adherent melanoma cells were more sensitive to glucose depletion. Gene expression profiling altered expressions of transporters associated with glucose metabolism. In addition, detachment stress reduced lactate secretion owing to the reduced MCT4 and GLUT1 expressions, the altered glycolytic and respiratory capacities, and the increased superoxide production. Detachment stress also increases the sensitivity of melanoma cells toward the blockade of electron transport chains. Investigation of the change in glucose metabolism of melanoma cells under detachment stress would be critical to provide a novel molecular mechanism to develop potential therapeutics.
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Affiliation(s)
- WuChing Uen
- School of Medicine, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan.,Department of Hematology and Oncology, Shin Kong Wu Ho-Su Memorial Hospital, Shih-Lin, Taipei City, Taiwan
| | - TingTing Tseng
- School of Medicine, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
| | - Ching-Po Wu
- School of Medicine, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
| | - ShaoChen Lee
- School of Medicine, Fu Jen Catholic University, Xinzhuang, New Taipei City, Taiwan
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3
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Shih CY, Cheng YC, Hsieh C, Tseng T, Jiang S, Lee SC. Drug-selected population in melanoma A2058 cells as melanoma stem-like cells retained angiogenic features - the potential roles of heparan-sulfate binding ANGPTL4 protein. Aging (Albany NY) 2020; 12:22700-22718. [PMID: 33196458 PMCID: PMC7746371 DOI: 10.18632/aging.103890] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 07/16/2020] [Indexed: 12/12/2022]
Abstract
Malignant cancer may contain highly heterogeneous populations of cells, including stem-like cells which were resistant to chemotherapy agents, radiation, mechanical stress, and immune surveillance. The characterization of these specific subpopulations might be critical to develop novel strategy to remove malignant tumors. We selected and enriched small population of human melanoma A2058 cells by repetitive selection cycles (selection, restoration, and amplification). These subpopulation of melanoma cells persisted the characteristics of slower cell proliferation, enhanced drug-resistance, elevated percentage of side population as analyzed by Hoechst33342 exclusion, in vitro sphere formation, and in vivo xenograft tumor formation by small amount of tumor cells. The selected populations would be melanoma stem-like cells with high expression of stem cell markers and altered kinase activation. Microarray and bioinformatics analysis highlighted the high expression of angiopoietin-like 4 protein in drug-selected melanoma stem-like cells. Further validation by specific shRNA demonstrated the role of angiopoietin-like 4 protein in drug-selected subpopulation associated with enhanced drug-resistance, sphere formation, reduced kinase activation, in vitro tube-forming ability correlated with heparan-sulfate proteoglycans. Our finding would be applicable to explore the mechanism of melanoma stemness and use angiopoietin-like 4 as potential biomarkers to identify melanoma stem-like cells.
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Affiliation(s)
- Chia-Yu Shih
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Yu-Che Cheng
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan.,Proteomics Laboratory, Cathay Medical Research Institute, Cathay General Hospital, Taipei, Taiwan.,Department of Biomedical Science and Engineering, National Central University, Jhongli, Taiwan
| | - ChiaoHui Hsieh
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - TingTing Tseng
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - ShihSheng Jiang
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Shao-Chen Lee
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
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4
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Cheng YC, Ku WC, Tseng TT, Wu CP, Li M, Lee SC. Anchorage independence altered vasculogenic phenotype of melanoma cells through downregulation in aminopeptidase N /syndecan-1/integrin β4 axis. Aging (Albany NY) 2020; 12:16803-16819. [PMID: 32756007 PMCID: PMC7521491 DOI: 10.18632/aging.103425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/20/2020] [Indexed: 01/24/2023]
Abstract
The detachment of tumor cells from extracellular matrix and survival under anchorage-independence were recognized as the initial step of tumor metastasis. Previously we had demonstrated that anchorage-independence altered gene expressions and showed characteristics of cell invasiveness loss, enhanced chemosensitivity, and enhanced subcutaneous tumor formation. However, whether it affected histological phenotypes in tumor tissues remained unclear. Melanoma metastases were generated in nude mice using adherent or suspended melanoma cells. Examination of melanoma metastases revealed histological features of extensive vascular structures in adherent cell-derived tumors, while not seen in suspended cell-derived tumors. Quantitative proteomic analysis at adherent, suspended, and re-attached melanoma cells suggested that aminopeptidase N was potentially downregulated upon cell suspension or reattachment. Downregulation of aminopeptidase N by gene-specific shRNAs showed reduced cell invasiveness and enhanced subcutaneous tumor formation that was consistent with previous observations. Experiments by suppression or overexpression of aminopeptidase N expression demonstrated that aminopeptidase N regulated syndecan-1 and integrin β4 expression through PKCδ pathway. Histological analysis at melanoma metastases further suggested that CD31+/aminopeptidase N+/syndecan-1+/integrin β4+ phenotypes were associated with vascular structures. In summary, we suggested the expression axis of aminopeptidase N/syndecan-1/integrin β4 in melanoma cells was suppressed by detachment stress, which diminished vascular phenotypes of melanoma metastases.
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Affiliation(s)
- Yu-Che Cheng
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan,Proteomics Laboratory, Cathay Medical Research Institute, Cathay General Hospital, Taipei, Taiwan,Department of Biomedical Science and Engineering, National Central University, Jhongli, Taiwan
| | - Wei-Chi Ku
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Ting-Ting Tseng
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Ching-Po Wu
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Mengjin Li
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Shao-Chen Lee
- School of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
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5
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Cui ZJ, Zhou XH, Zhang HY. DNA Methylation Module Network-Based Prognosis and Molecular Typing of Cancer. Genes (Basel) 2019; 10:genes10080571. [PMID: 31357729 PMCID: PMC6722866 DOI: 10.3390/genes10080571] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 07/11/2019] [Accepted: 07/26/2019] [Indexed: 12/25/2022] Open
Abstract
Achieving cancer prognosis and molecular typing is critical for cancer treatment. Previous studies have identified some gene signatures for the prognosis and typing of cancer based on gene expression data. Some studies have shown that DNA methylation is associated with cancer development, progression, and metastasis. In addition, DNA methylation data are more stable than gene expression data in cancer prognosis. Therefore, in this work, we focused on DNA methylation data. Some prior researches have shown that gene modules are more reliable in cancer prognosis than are gene signatures and that gene modules are not isolated. However, few studies have considered cross-talk among the gene modules, which may allow some important gene modules for cancer to be overlooked. Therefore, we constructed a gene co-methylation network based on the DNA methylation data of cancer patients, and detected the gene modules in the co-methylation network. Then, by permutation testing, cross-talk between every two modules was identified; thus, the module network was generated. Next, the core gene modules in the module network of cancer were identified using the K-shell method, and these core gene modules were used as features to study the prognosis and molecular typing of cancer. Our method was applied in three types of cancer (breast invasive carcinoma, skin cutaneous melanoma, and uterine corpus endometrial carcinoma). Based on the core gene modules identified by the constructed DNA methylation module networks, we can distinguish not only the prognosis of cancer patients but also use them for molecular typing of cancer. These results indicated that our method has important application value for the diagnosis of cancer and may reveal potential carcinogenic mechanisms.
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Affiliation(s)
- Ze-Jia Cui
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiong-Hui Zhou
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China.
| | - Hong-Yu Zhang
- Hubei Key Laboratory of Agricultural Bioinformatics, College of Informatics, Huazhong Agricultural University, Wuhan 430070, China.
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SIRT2 Contributes to the Resistance of Melanoma Cells to the Multikinase Inhibitor Dasatinib. Cancers (Basel) 2019; 11:cancers11050673. [PMID: 31091806 PMCID: PMC6562913 DOI: 10.3390/cancers11050673] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/08/2019] [Accepted: 05/12/2019] [Indexed: 12/11/2022] Open
Abstract
Malignant melanoma is the most aggressive skin cancer and can only be cured if detected early. Unfortunately, later stages of the disease do not guarantee success due to the rapid rate of melanoma cell metastasis and their high resistance to applied therapies. The search for new molecular targets and targeted therapy may represent the future in the development of effective methods for combating this cancer. SIRT2 is a promising target; thus, we downregulated SIRT2 expression in melanoma cells in vertical growth and metastatic phases and demonstrated that sirtuin acts as regulator of the basic functions of melanoma cells. A detailed transcriptomic analysis showed that SIRT2 regulates the expression of multiple genes encoding the tyrosine kinase pathways that are molecular targets of dasatinib. Indeed, cells with low SIRT2 expression were more susceptible to dasatinib, as demonstrated by multiple techniques, e.g., neutral red uptake, 3/7 caspase activity, colony formation assay, and in vitro scratch assay. Furthermore, these cells showed an altered phosphorylation profile for proteins playing roles in the response to dasatinib. Thus, our research indicates new, previously unknown SIRT2 functions in the regulation of gene expression, which is of key clinical significance.
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7
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Comparison of Syndecan-1 Immunohistochemical Expression in Lobular and Ductal Breast Carcinoma with Nodal Metastases. Anal Cell Pathol (Amst) 2018; 2018:9432375. [PMID: 30151336 PMCID: PMC6087611 DOI: 10.1155/2018/9432375] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/03/2018] [Indexed: 01/30/2023] Open
Abstract
Syndecan-1 (Sdc1) is a transmembrane heparan sulfate proteoglycan, an extracellular matrix receptor involved in intercellular communication, proliferation, angiogenesis, and metastasis. This study determined and compared Sdc1 expression in the tumor cells and stroma of 30 invasive lobular and 30 invasive ductal breast carcinomas (ILCs/IDCs), also in the axillary node metastases of ductal type, and correlated it with clinical and tumor parameters. Sdc1 was expressed in the epithelium of 90% carcinoma of both histological types. Also, it was most frequently expressed in their tumor stroma, but in ILC, stromal expression was negative in 40%. Sdc1 was expressed in 86.7% of the metastatic epithelium of IDC nodal metastases (in even 50% as high expression), while the nodal stroma was negative in 46.7%. Primary IDC showed a negative correlation between epithelial Sdc1 and progesterone receptors (PRs), whereas ILC showed a positive correlation between stromal Sdc1 and histological gradus. In the metastatic epithelium, Sdc1 was negatively correlated with a patient's age, estrogen receptors (ERs), and PRs in the primary tumors, while the stroma of metastases demonstrated a positive correlation with the focus number in primary tumors and a negative correlation with PRs in primary tumors. This research revealed identical overall epithelial Sdc1 expression in both breast carcinomas with no statistically significant difference in its stromal expression and confirmed the role of Sdc1 in the progression of both tumor types and in the development of ductal carcinoma's metastatic potential.
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8
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Qin Q, Xu G, Qi W, Guo M, Wang Z, Xu W, Qiao Z, Gu Y, Niu J. Evaluation of the C-domain of heparanase during AGE-induced macrophage inflammatory response. Exp Ther Med 2017; 14:1017-1022. [PMID: 28810553 PMCID: PMC5526102 DOI: 10.3892/etm.2017.4609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 04/18/2017] [Indexed: 11/05/2022] Open
Abstract
Diabetic vasculopathy is intensified by macrophage inflammation caused by advanced glycation end products (AGEs). Heparanase (HPA) is a unique endoglycosidase, which cleaves heparan sulfate proteoglycans (HSPGs) including syndecan-1 (Syn-1) to further stimulate macrophage cell migration and inflammation. The present study was planned to evaluated the role of C-domain (if any) of HPA in AGE inflammatory response in macrophages. Cell viability was assessed using MTT assay, migration assay, ELISA for tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) levels, mRNA expression by RT-PCR and heparan degrading enzyme assay for HPA activity. In the present study, we found that pretreatment with anti-HPA antibody, which recognizes the C-domain of HPA inhibited macrophage migration, secretion of IL-1β and TNF-α as well as decreased HPA enzymatic activity and increased Syn-1 protein expression in AGE-induced macrophages. Compared with anti-HPA antibody pretreatment, co-pretreatment with anti-HPA plus Syn-1 antibodies promoted macrophage migration, and secretion of IL-1β and TNF-α significantly in AGE-induced macrophages. In addition, pretreatment with anti-HPA or anti-HPA plus Syn-1 antibodies did not markedly change the mRNA levels of IL-1β and TNF-α concentration AGE-treated macrophages. The results showed that C-domain of HPA mediates AGE-induced macrophage migration and inflammatory cytokine release via Syn-1 protein expression. Furthermore, C-domain of HPA may have a key role in diabetic vascular complication-associated inflammatory response.
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Affiliation(s)
- Qiaojing Qin
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Guang Xu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Weiwei Qi
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Mei Guo
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Zhaoxia Wang
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Wangjie Xu
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Zhongdong Qiao
- School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Yong Gu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
| | - Jianying Niu
- Department of Nephrology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, P.R. China
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Tseng T, Uen W, Tseng J, Lee S. Enhanced chemosensitization of anoikis-resistant melanoma cells through syndecan-2 upregulation upon anchorage independency. Oncotarget 2017; 8:61528-61537. [PMID: 28977882 PMCID: PMC5617442 DOI: 10.18632/oncotarget.18616] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 05/29/2017] [Indexed: 01/05/2023] Open
Abstract
Syndecan family proteins are heparan sulfate proteoglycans, which involved in various cellular activities and associating with metastatic potential and chemosensitivity of tumor cells. Melanoma is one of malignant tumors with poor prognosis upon metastasis. Previously, we had shown that melanoma cells remained survived under cell detachment, which was similar to the initial steps of tumor metastasis. Downregulation of syndecan-1 and upregulation of syndecan-2 in melanoma A375 cells were observed by different suspension conditions. Specific gene alterations also increased melanoma malignancy under anchorage independency. Thus, we would like to investigate in further the role of specific gene alteration, so that it could be used to develop novel strategy to treat melanoma. In this paper, we found that syndecan-2 expression level as well the kinase phosphorylation levels increased upon anchorage independency. The pathway to regulate syndecan-2 expression shifted from PKCα/β-dependent under adhesion into PKCδ-dependent under cell suspension. Manipulation of syndecan-2 expression showed that PI3K and ERK phosphorylation as well the migratory ability increased with increased syndecan-2 expression level. In addition, suspended melanoma cells were more sensitive to chemoagents, which correlated with syndecan-2 overexpression, PI3K and ERK activations, serum level, and the presence of glycosaminoglycans. In conclusion, we showed upregulation of syndecan-2 in anoikis-resistant melanoma cells enhanced chemosensitivity through PI3K and ERK activation. This observation would support and refine the strategy of adjuvant chemotherapy to overcome metastatic melanoma.
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Affiliation(s)
- TingTing Tseng
- School of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - WuChing Uen
- School of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan.,Department of Hematology and Oncology, Shin Kong Wu Ho-Su Memorial Hospital, Taipei City 111, Taiwan
| | - JenChih Tseng
- School of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
| | - ShaoChen Lee
- School of Medicine, Fu Jen Catholic University, New Taipei City 242, Taiwan
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Wu PF, Chiu CC, Chen CY, Wang HMD. 7-Hydroxydehydronuciferine induces human melanoma death via triggering autophagy and apoptosis. Exp Dermatol 2015; 24:930-5. [DOI: 10.1111/exd.12805] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Pei-Fang Wu
- Department of Fragrance and Cosmetic Science; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
| | - Chien-Chih Chiu
- Department of Biotechnology; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
| | - Chung-Yi Chen
- School of Medical and Health Sciences; Fooyin University; Kaohsiung Taiwan, ROC
| | - Hui-Min David Wang
- Department of Fragrance and Cosmetic Science; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Graduate Institute of Natural Products; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Center for Stem Cell Research; Kaohsiung Medical University; Kaohsiung Taiwan, ROC
- Department of Marine Biotechnology and Resources; National Sun Yat-Sen University; Kaohsiung Taiwan, ROC
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Advances in the molecular functions of syndecan-1 (SDC1/CD138) in the pathogenesis of malignancies. Crit Rev Oncol Hematol 2014; 94:1-17. [PMID: 25563413 DOI: 10.1016/j.critrevonc.2014.12.003] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 11/28/2014] [Accepted: 12/10/2014] [Indexed: 01/08/2023] Open
Abstract
Syndecan-1 (SDC1, synd, CD138) is the most widely studied member of four structurally related cell surface heparan sulfate proteoglycans (HSPG). Although SDC1 has been implicated in a wide range of biological functions, its altered expression often produces malignant phenotypes, which arise from increased cell proliferation and cell growth, cell survival, cell invasion and metastasis, and angiogenesis. Recent studies revealed much about the underlying molecular roles of SDC1 in these processes. The changes in SDC1 expression also have a direct impact on the clinical course of cancers, as evident by its prognostic significance. Accumulating evidence suggest that SDC1 is involved in stimulation of cancer stem cells (CSC) or tumor initiating cells (TIC) and this may affect disease relapse, and resistance to therapy. This review discusses the progress on the pro-tumorigenic role(s) of SDC1 and how these roles may impact the clinical aspect of the disease. Also discussed, are the current strategies for targeting SDC1 or its related signaling.
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