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Guo S, Qian C, Li W, Zeng Z, Cai J, Luo Y. Modulation of Neuroinflammation: Advances in Roles and Mechanisms of the IL-33/ST2 Axis Involved in Ischemic Stroke. Neuroimmunomodulation 2023; 30:226-236. [PMID: 37729881 PMCID: PMC10614518 DOI: 10.1159/000533984] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/02/2023] [Indexed: 09/22/2023] Open
Abstract
Interleukin (IL)-33 was initially recognized as a constituent of the IL-1 cytokine family in 2005. It exerts pleiotropic effects by regulating immune responses via its binding to the receptor ST2 (IL-33R). The IL-33/ST2 pathway has been linked to several inflammatory disorders. In human and rodents, the broad expression of IL-33 in spinal cord tissues and brain indicates its central nervous system-specific functions. Growing evidence supports the protective effects of the IL-33/ST2 pathway in ischemic stroke, along with a better understanding of the underlying mechanisms. IL-33 plays a crucial role in the regulation of the release of inflammatory molecules from glial cells in response to neuropathological lesions. Moreover, IL-33/ST2-mediated neuroprotection following cerebral ischemia may be linked to T-cell function, specifically regulatory T cells. Soluble ST2 (sST2) acts as a decoy receptor in the IL-33/ST2 axis, blocking IL-33 signaling through the membrane ST2 receptor. sST2 has also been identified as a potential inflammatory biomarker of ischemic stroke. Targeting sST2 specifically to eliminate its inhibition of the protective IL-33/ST2 pathway in ischemic brain tissues is a promising approach for the treatment of ischemic stroke.
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Affiliation(s)
- Shuang Guo
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chengli Qian
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wenfeng Li
- Department of Clinical Medicine, The Second Clinical College, Wuhan University, Wuhan, China
| | - Zhikun Zeng
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Junlong Cai
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yi Luo
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
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Abstract
Glioblastoma remains the deadliest form of brain cancer, largely because these tumors become resistant to standard of care treatment with radiation and chemotherapy. Intracellular production of reactive oxygen species (ROS) is necessary for chemo- and radiotherapy-induced cytotoxicity. Here, we assessed whether antioxidant catalase (CAT) affects glioma cell sensitivity to temozolomide and radiation. Using The Cancer Genome Atlas database, we found that CAT mRNA expression is upregulated in glioma tumor tissue compared with non-tumor tissue, and the level of expression negatively correlates with the overall survival of patients with high-grade glioma. In U251 glioma cells, CAT overexpression substantially decreased the basal level of hydrogen peroxide, enhanced anchorage-independent cell growth, and facilitated resistance to the chemotherapeutic drug temozolomide and ionizing radiation. Importantly, pharmacological inhibition of CAT activity reduced the proliferation of glioma cells isolated from patient biopsy samples. Moreover, U251 cells overexpressing CAT formed neurospheres in neurobasal medium, whereas control cells did not, suggesting that the radio- and chemoresistance conferred by CAT may be due in part to the enrichment of glioma stem cell populations. Finally, CAT overexpression significantly decreased survival in an orthotopic mouse model of glioma. These results demonstrate that CAT regulates chemo- and radioresistance in human glioma.
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Catalase Overexpression Drives an Aggressive Phenotype in Glioblastoma. Antioxidants (Basel) 2021; 10:antiox10121988. [PMID: 34943091 PMCID: PMC8750785 DOI: 10.3390/antiox10121988] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/06/2021] [Accepted: 12/08/2021] [Indexed: 11/17/2022] Open
Abstract
Glioblastoma remains the deadliest form of brain cancer, largely because these tumors become resistant to standard of care treatment with radiation and chemotherapy. Intracellular production of reactive oxygen species (ROS) is necessary for chemo- and radiotherapy-induced cytotoxicity. Here, we assessed whether antioxidant catalase (CAT) affects glioma cell sensitivity to temozolomide and radiation. Using The Cancer Genome Atlas database, we found that CAT mRNA expression is upregulated in glioma tumor tissue compared with non-tumor tissue, and the level of expression negatively correlates with the overall survival of patients with high-grade glioma. In U251 glioma cells, CAT overexpression substantially decreased the basal level of hydrogen peroxide, enhanced anchorage-independent cell growth, and facilitated resistance to the chemotherapeutic drug temozolomide and ionizing radiation. Importantly, pharmacological inhibition of CAT activity reduced the proliferation of glioma cells isolated from patient biopsy samples. Moreover, U251 cells overexpressing CAT formed neurospheres in neurobasal medium, whereas control cells did not, suggesting that the radio- and chemoresistance conferred by CAT may be due in part to the enrichment of glioma stem cell populations. Finally, CAT overexpression significantly decreased survival in an orthotopic mouse model of glioma. These results demonstrate that CAT regulates chemo- and radioresistance in human glioma.
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Bai F, Ba F, You Y, Feng Y, Tao W, Wu C, Jiu M, Nie Y. Decreased ST2 expression is associated with gastric cancer progression and pathogenesis. Oncol Lett 2019; 17:5761-5767. [PMID: 31186802 DOI: 10.3892/ol.2019.10223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 03/14/2019] [Indexed: 01/01/2023] Open
Abstract
Gastric cancer is a type of cancer with increasing incidence and high mortality rates, but molecular biomarkers of diagnostic and therapeutic value are currently lacking. The aim of the present study was to examine the expression pattern of the interleukin 1 receptor-like 1 (ST2) protein and assess its clinicopathological significance in gastric cancer. Western blot analysis of 12 gastric cancer specimens and paired adjacent tissues demonstrated that the protein levels of 2 isoforms of ST2, soluble secreted ST2 and the ST2 variant without the third immunoglobulin motif and splicing in the C-terminal, were markedly decreased in cancer tissues compared with non-cancerous tissues. Immunohistochemical analysis demonstrated that ST2 protein expression was markedly decreased in primary gastric cancer tissues (39.1%, 90/230) compared with adjacent non-cancerous tissues (60.7%, 54/89) (P<0.05). Statistical analysis demonstrated that decreased ST2 expression was significantly associated with advanced tumor node metastasis stage (P<0.001) and tumor differentiation (P<0.001). These data suggest that ST2 protein may be a valuable biomarker of gastric cancer progression and pathogenesis.
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Affiliation(s)
- Feihu Bai
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Fangyun Ba
- Department of General Medicine, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750001, P.R. China
| | - Yanjie You
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Yaning Feng
- Department of Gastroenterology, Ningxia Hui Autonomous Region People's Hospital, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Wei Tao
- Department of Gastroenterology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750021, P.R. China
| | - Chuanxia Wu
- Department of Gastroenterology, The Second People's Hospital of Linyi, Linyi, Shandong 276000, P.R. China
| | - Mengna Jiu
- Department of Gastroenterology, Ankang Central Hospital, Ankang, Shanxi 725000, P.R. China
| | - Yongzhan Nie
- Department of Gastroenterology, Xijing Hospital of Digestive Diseases, State Key Laboratory of Cancer Biology and Institute of Digestive Diseases, Xi'an, Shanxi 710000, P.R. China
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Tago K, Ohta S, Kashiwada M, Funakoshi-Tago M, Matsugi J, Tominaga SI, Yanagisawa K. ST2 gene products critically contribute to cellular transformation caused by an oncogenic Ras mutant. Heliyon 2017; 3:e00436. [PMID: 29226265 PMCID: PMC5714553 DOI: 10.1016/j.heliyon.2017.e00436] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/29/2017] [Accepted: 10/20/2017] [Indexed: 11/15/2022] Open
Abstract
The ST2 gene was originally identified as a primary responsive gene, and the expressions of its gene products are induced by stimulation with growth factors and by oncogenic stresses. In this study, we observed that oncogenic Ras mutant induced the expression of ST2 and ST2L proteins. Interestingly, the enforced expression of ST2 gene products in NIH-3T3 murine fibroblasts remarkably enhanced Ras (G12V)-induced cellular transformation. Furthermore, when the expression of ST2 gene products was silenced by RNA-interference technique, Ras (G12V)-induced cellular transformation was drastically suppressed. According to these observations, it was indicated that the oncogenic Ras-induced expression of ST2 gene products is required for the acceleration of cellular transformation, and this seems to be independent of the stimulation with IL-33, a ligand for ST2/ST2L. Interestingly, knockdown of ST2 gene products caused a reduction in Rb phosphorylation in transformed murine fibroblasts, suggesting the functional involvement of ST2 gene products in cell cycle progression during cellular transformation. Our current study strongly suggests the importance of ST2 gene products in cellular transformation, and the presence of novel mechanism how ST2 gene products affect the cellular transformation and cell proliferation.
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Affiliation(s)
- Kenji Tago
- Division of Structural Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Satoshi Ohta
- Division of Structural Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Masaki Kashiwada
- Medical Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Megumi Funakoshi-Tago
- Department of hygienic chemistry, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo 105-8512, Japan
| | - Jitsuhiro Matsugi
- Division of Structural Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Shin-Ichi Tominaga
- Medical Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
| | - Ken Yanagisawa
- Division of Structural Biochemistry, Department of Biochemistry, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke, Tochigi 329-0498, Japan
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Tago K, Ohta S, Funakoshi-Tago M, Aoki-Ohmura C, Matsugi J, Tominaga SI, Yanagisawa K. STAT3 and ERK pathways are involved in cell growth stimulation of the ST2/IL1RL1 promoter. FEBS Open Bio 2017; 7:293-302. [PMID: 28174694 PMCID: PMC5292660 DOI: 10.1002/2211-5463.12192] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 12/23/2016] [Indexed: 12/25/2022] Open
Abstract
The ST2 gene was originally identified as a primary responsive gene induced by stimulation with growth factors and by oncogenic stress. The ST2 gene harbors two distinct promoters - a distal promoter and a proximal promoter. In this study, we identified a novel type of serum-responsive element in the ST2 proximal promoter using reporter gene analysis; this element includes a possible responsive element for STAT family proteins. Indeed, enforced expression of constitutively active STAT3 activated this promoter element and induced the expression of ST2 gene products. Furthermore, an oncogenic Ras (G12V) mutant also caused the expression of ST2 gene products by utilizing the proximal promoter. We also clarified that activation of the ST2 promoter by either growth stimulation or oncogenic Ras was suppressed by the inhibitors for STAT3 and ERK pathways. Our observations strongly suggest the importance of STAT family and ERK pathways for the induction of ST2 gene products by cell growth stimulation.
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Affiliation(s)
- Kenji Tago
- Division of Structural Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
| | - Satoshi Ohta
- Division of Structural Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
| | - Megumi Funakoshi-Tago
- Department of Hygienic Chemistry Faculty of Pharmacy Keio University Minato-ku Tokyo Japan
| | - Chihiro Aoki-Ohmura
- Division of Structural Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
| | - Jitsuhiro Matsugi
- Division of Structural Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
| | - Shin-Ichi Tominaga
- Medical Biochemistry Department of Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
| | - Ken Yanagisawa
- Division of Structural Biochemistry Jichi Medical University Shimotsuke Tochigi Japan
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Soluble form of the ST2 gene product exhibits growth promoting activity in NIH-3T3 cells. Biochem Biophys Rep 2015; 5:8-15. [PMID: 28955802 PMCID: PMC5600422 DOI: 10.1016/j.bbrep.2015.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/10/2015] [Accepted: 11/19/2015] [Indexed: 12/22/2022] Open
Abstract
The ST2 gene is induced in murine fibroblast cells at the start of cell proliferation. Although IL-33 has been identified as a ligand for one of the two major gene products of ST2 – namely, the transmembrane receptor form ST2L – prompting immunological research on inflammation, the roles of the ST2 gene products in cell proliferation remain to be elucidated. Using a cell proliferation assay system with NIH-3T3 cells, a normal murine fibroblast cell line, we found that treatment with recombinant ST2 caused an acceleration of cell proliferation, suggesting that ST2 acts in an autocrine/paracrine fashion. Strikingly, shRNA-induced knockdown of both ST2 gene products, ST2 and ST2L, reduced cell proliferation. This effect was effectively canceled by the expression of shRNA-resistant ST2, but not shRNA-resistant ST2L. The novel enhancement of cell proliferation by ST2 appears to involve positive feedback. Since the ST2 level is increased in various diseases involving inflammation, future investigations into the role of ST2 gene products in relation to various diseases, including malignancies, may be warranted. Soluble ST2 enhanced cell proliferation of NIH-3T3 cells. Reduction of the ST2 gene products highly deteriorated cell growth of NIH-3T3 cells. Cell proliferation was recovered with supplementation of soluble ST2, but not ST2L. Positive feedback system of ST2 on cell proliferation is of great interest.
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Key Words
- Cell proliferation
- DMEM, Dulbecco’s Modified Eagle’s Medium
- EDTA, ethylenediaminetetraacetic acid
- ELISA, enzyme-linked immunosorbent assay
- FBS, fetal bovine serum
- Fibroblast
- GAPDH, glyceraldehyde-3-phosphate dehydrogenase
- RT-PCR, reverse transcription-polymerase chain reaction
- S.D., standard deviation
- SDS-PAGE, sodium dodecylsulfate-polyacrylamide gel electrophoresis
- ST2 gene
- bp, base pairs
- cDNA, complementary DNA
- shRNA, short hairpin RNA
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Goeman F, De Nicola F, D'Onorio De Meo P, Pallocca M, Elmi B, Castrignanò T, Pesole G, Strano S, Blandino G, Fanciulli M, Muti P. VDR primary targets by genome-wide transcriptional profiling. J Steroid Biochem Mol Biol 2014; 143:348-56. [PMID: 24726990 DOI: 10.1016/j.jsbmb.2014.03.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 03/18/2014] [Accepted: 03/23/2014] [Indexed: 12/14/2022]
Abstract
There is growing evidence that 1α,25-dihydroxyvitamin D3 (1α,25(OH)2D3) plays a role in breast cancer prevention and survival. It elicits a variety of antitumor activities like controlling cellular differentiation, proliferation and angiogenesis. Most of its biological effects are exerted via its nuclear receptor which acts as a transcriptional regulator. Here, we carried out a genome-wide investigation of the primary transcriptional targets of 1α,25(OH)2D3 in breast epithelial cancer cells using RNA-Seq technology. We identified early transcriptional targets of 1α,25(OH)2D3 involved in adhesion, growth regulation, angiogenesis, actin cytoskeleton regulation, hexose transport, inflammation and immunomodulation, apoptosis, endocytosis and signaling. Furthermore, we found several transcription factors to be regulated by 1α,25(OH)2D3 that subsequently amplify and diversify the transcriptional output driven by 1α,25(OH)2D3 leading finally to a growth arrest of the cells. Moreover, we could show that 1α,25(OH)2D3 elevates the trimethylation of histone H3 lysine 4 at several target gene promoters. Our present transcriptomic analysis of differential expression after 1α,25(OH)2D3 treatment provides a resource of primary 1α,25(OH)2D3 targets that might drive the antiproliferative action in breast cancer epithelial cells.
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Affiliation(s)
- Frauke Goeman
- Translational Oncogenomics Unit, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | - Francesca De Nicola
- Laboratory of Epigenetic, Molecular Medicine Area, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | | | - Matteo Pallocca
- Translational Oncogenomics Unit, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | - Berardino Elmi
- Laboratory of Epigenetic, Molecular Medicine Area, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | | | - Graziano Pesole
- Institute of Biomembranes and Bioenergetics of the National Research Council and Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari, 70125 Bari, Italy.
| | - Sabrina Strano
- Molecular Chemoprevention Unit, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | - Giovanni Blandino
- Translational Oncogenomics Unit, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | - Maurizio Fanciulli
- Laboratory of Epigenetic, Molecular Medicine Area, Italian National Cancer Institute "Regina Elena", 00144 Rome, Italy.
| | - Paola Muti
- Department of Oncology, McMaster University, Main Street West Hamilton, ON L8S 4K1, Canada.
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Lipsky BP, Toy DY, Swart DA, Smithgall MD, Smith D. Deletion of the ST2 proximal promoter disrupts fibroblast-specific expression but does not reduce the amount of soluble ST2 in circulation. Eur J Immunol 2012; 42:1863-9. [DOI: 10.1002/eji.201142274] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 03/02/2012] [Accepted: 04/02/2012] [Indexed: 11/06/2022]
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Han P, Mi WL, Wang YQ. Research progress on interleukin-33 and its roles in the central nervous system. Neurosci Bull 2011; 27:351-7. [PMID: 21934731 PMCID: PMC5560310 DOI: 10.1007/s12264-011-1025-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Accepted: 07/06/2011] [Indexed: 01/17/2023] Open
Abstract
Interleukin-33 (IL-33), a newly recognized IL-1 family member, is expressed by various tissues and cells. Since it can combine with chromosomes, IL-33 is regarded as an intracellular transcription repressor. Upon proinflammatory stimulation, it is released as an extracellular cytokine to function as an alarmin to dangerous signals. The IL-33 receptor is a heterodimer complex composed of ST2 and the IL-1 receptor accessory protein, the latter being conserved in other IL-1 family members. The IL-33/ST2 signaling pathway plays critical roles in inflammatory and immune diseases, as well as in central nervous system (CNS) diseases. Recently, there has been an increasing focus on IL-33, particularly on its production and functions in the CNS. The present review mainly focuses on progress in research on IL-33, especially its roles in the CNS.
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Affiliation(s)
- Ping Han
- Department of Integrative Medicine and Neurobiology, Institute of Acupuncture Research, State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai, 200032 China
| | - Wen-Li Mi
- Department of Integrative Medicine and Neurobiology, Institute of Acupuncture Research, State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai, 200032 China
| | - Yan-Qing Wang
- Department of Integrative Medicine and Neurobiology, Institute of Acupuncture Research, State Key Laboratory of Medical Neurobiology, Institutes of Brain Science, Shanghai Medical College, Fudan University, Shanghai, 200032 China
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Liew FY, Pitman NI, McInnes IB. Disease-associated functions of IL-33: the new kid in the IL-1 family. Nat Rev Immunol 2010; 10:103-10. [PMID: 20081870 DOI: 10.1038/nri2692] [Citation(s) in RCA: 771] [Impact Index Per Article: 55.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Interleukin-33 (IL-33), a newly described member of the IL-1 family, is expressed by many cell types following pro-inflammatory stimulation and is thought to be released on cell lysis. The IL-33 receptor, consisting of ST2 and IL-1 receptor accessory protein, is also widely expressed, particularly by T helper 2 (T(H)2) cells and mast cells. IL-33 is host-protective against helminth infection and reduces atherosclerosis by promoting T(H)2-type immune responses. However, IL-33 can also promote the pathogenesis of asthma by expanding T(H)2 cells and mediate joint inflammation, atopic dermatitis and anaphylaxis by mast cell activation. Thus IL-33 could be a new target for therapeutic intervention across a range of diseases.
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Affiliation(s)
- Foo Y Liew
- Division of Immunology, Infection and Inflammation, Glasgow Biomedical Research Centre, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK.
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12
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Zhao CH, Li QF, Zhao Y, Niu JW, Li ZX, Chen JA. Changes of nuclear matrix proteins following the differentiation of human osteosarcoma MG-63 cells. GENOMICS PROTEOMICS & BIOINFORMATICS 2006; 4:10-7. [PMID: 16689697 PMCID: PMC5053975 DOI: 10.1016/s1672-0229(06)60011-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Human osteosarcoma MG-63 cells were induced into differentiation by 5 mmol/L hexamethylene bisacetamide (HMBA). Their nuclear matrix proteins (NMPs) were selectively extracted and subjected to two-dimensional gel electrophoresis analysis. The results of protein patterns were analyzed by Melanie software. The spots of differentially expressed NMPs were excised and subjected to in situ digestion with trypsin. The maps of peptide mass fingerprinting were obtained by MALDI-TOF-MS analysis, and were submitted for NCBI database searches by Mascot tool. There were twelve spots changed remarkably during the differentiation induced by HMBA, nine of which were identified. The roles of the regulated proteins during the MG-63 differentiation were analyzed. This study suggests that the induced differentiation of cancer cells is accompanied by the changes of NMPs, and confirms the presence of some specific NMPs related to the cancer cell proliferation and differentiation. The changed NMPs are potential markers for cancer diagnosis or targets for cancer therapy.
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Affiliation(s)
- Chun-Hong Zhao
- Laboratory of Cell Biology, the Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Qi-Fu Li
- Laboratory of Cell Biology, the Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China
- Corresponding author.
| | - Yan Zhao
- Laboratory of Cell Biology, the Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Jing-Wen Niu
- Laboratory of Cell Biology, the Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Zhi-Xing Li
- Laboratory of Cell Biology, the Key Laboratory of the Ministry of Education for Cell Biology and Tumor Cell Engineering, School of Life Sciences, Xiamen University, Xiamen 361005, China
| | - Jin-An Chen
- Analysis and Testing Center, School of Life Sciences, Xiamen University, Xiamen 361005, China
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Kanda M, Ohto-Ozaki H, Kuroiwa K, Tominaga S, Watanabe E, Iwahana H. Elevation of ST2 protein levels in cerebrospinal fluid following subarachnoid hemorrhage. Acta Neurol Scand 2006; 113:327-33. [PMID: 16629769 DOI: 10.1111/j.1600-0404.2006.00587.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To study the mode of appearance of ST2 in cerebrospinal fluid (CSF) after subarachnoid hemorrhage (SAH). MATERIALS AND METHODS Immunoprecipitation and subsequent immunoblotting were performed to reveal the existence of ST2 in CSF after SAH. CSF samples from 21 patients were analyzed for ST2 using an enzyme-linked immunosorbent assay system. The ST2 levels were compared between serum and CSF after SAH. The ST2 levels in CSF were measured in six patients operated with other than SAH. RESULTS ST2 was secreted into CSF after SAH. The concentration of ST2 was the highest in the samples of the first post-operative day and declined thereafter. The patients operated with other than SAH did not show the elevation of ST2 in CSF. CONCLUSIONS This study revealed the presence of ST2 in CSF for the first time and suggested a possibility that ST2 is related to the inflammatory reaction in the central nervous system after SAH.
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Affiliation(s)
- M Kanda
- Department of Surgical Neurology, Jichi Medical School, Tochigi, Japan
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