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Kitagawa T, Islam S, Baron B, Tokuda K, Paudel D, Ohta T, Nakagawa K, Kobayashi M, Okada F, Kuramitsu Y. A Standardized Extract of Cultured Lentinula edodes mycelia Up-regulates COX-2 in Inflammation-related Malignant Progressive Fibrosarcoma Cell Clone QRsP-11. Anticancer Res 2023; 43:1239-1244. [PMID: 36854525 DOI: 10.21873/anticanres.16270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/25/2022] [Accepted: 10/31/2022] [Indexed: 03/02/2023]
Abstract
BACKGROUND/AIM Cyclooxygenase is an enzyme that transforms arachidonic acid to prostaglandins. Cyclooxygenase-2 (COX-2) is an isoform of cyclooxygenase. There exist many reports on the expression levels of COX-2 in cancer tissues, and prognosis of cancer patients has been reported to be related to COX-2 up-regulation. In the present study we assessed the suppressive effect of AHCC® on the expression of COX-2 in QRsP-11cells. MATERIALS AND METHODS QR-32 is a clone which was derived from murine fibrosarcoma BMT-11 cells by treatment with quercetin. These clone cells regress spontaneously after injection into C57BL/6 mice. QRsP-11 is a clone derived from QR-32, showing very aggressive tumorigenicity. AHCC® is a standardized extract of cultured Lentinula edodes mycelia and has been reported to exert suppressive effects on various tumor-associated proteins including HSP27. The protein levels of COX-2 in QR-32 and QRsP-11 cells were compared by using western blotting. Furthermore, the expression levels of COX-2 were assessed in QRsP-11 cells after AHCC®-treatment. RESULTS Western blot analysis showed a significant up-regulation of COX-2 in QRsP-11 cells compared to QR-32 cells. In vitro AHCC®-treatment increased COX-2 expression levels in QRsP-11 cells contrary to expectations. CONCLUSION When using AHCC® in cancer treatment, it might be important to decrease COX-2 expression by means of non-steroidal anti-inflammatory drugs (NSAIDs), such as aspirin. Further studies are required to clarify the mechanism of up-regulation of COX-2 through AHCC®-treatment.
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Affiliation(s)
- Takao Kitagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Shajedul Islam
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Kazuhiro Tokuda
- Graduate School of Health and Welfare, Yamaguchi Prefectural University, Yamaguchi, Japan
| | - Durga Paudel
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Tohru Ohta
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Koji Nakagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Masanobu Kobayashi
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Futoshi Okada
- Division of Experimental Pathology, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan;
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Yamashita SN, Tanaka Y, Kitagawa T, Baron B, Tokuda K, Paudel D, Nakagawa K, Ohta T, Hamada JI, Kobayashi M, Nagayasu H, Kuramitsu Y. Down-regulating Effect of a Standardized Extract of Cultured Lentinula edodes mycelia on Cortactin in Prostate Cancer Cells Is Dependent on Malignant Potential. Anticancer Res 2023; 43:1159-1166. [PMID: 36854514 DOI: 10.21873/anticanres.16261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 03/02/2023]
Abstract
BACKGROUND/AIM The incidence and mortality rates of prostate cancer have been increasing worldwide. Although prostate cancer cells grow slowly in the local original site, once the cancer cells spread to distant organs they grow rapidly and show very aggressive features. Cortactin is a protein that regulates the actin cytoskeleton and plays crucial roles in cancer metastasis. Up-regulated cortactin is correlated with the metastatic capacity of prostate cancer cells. AHCC®, a standardized extract of cultured Lentinula edodes mycelia, has been previously reported to have cortactin-down-regulating effects on human pancreatic cancer cells. In the present study, the effects of AHCC® treatment on cortactin levels in prostate cancer cells was evaluated. MATERIALS AND METHODS LNCaP.FGC, DU145, and PC-3 are human prostate cancer cell lines. LNCaP.FGC is well differentiated, androgen-dependent, and poorly metastatic. DU145 is less differentiated, androgen-independent, and moderate metastatic. PC-3 is less differentiated, androgen-independent, and highly metastatic. The effects of AHCC® treatment on cortactin levels in prostate cancer cells was evaluated by western blot. RESULTS In vitro AHCC® treatment decreased cortactin levels in LNCaP.FGC and DU145 cells but did not change those in PC-3 cells. CONCLUSION AHCC® treatment down-regulated cortactin expression in poor and moderate metastatic LNCaP.FGC and DU145 cells but showed no effect on cortactin expression in the highly metastatic PC-3 cells. Further studies are required to elucidate the mechanism of the resistance to AHCC® treatment in highly metastatic PC-3 cells.
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Affiliation(s)
- Shin-Nosuke Yamashita
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan.,Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Yoshiatsu Tanaka
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan.,Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Takao Kitagawa
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Kazuhiro Tokuda
- Graduate School of Health and Welfare, Yamaguchi Prefectural University, Yamaguchi, Japan
| | - Durga Paudel
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Koji Nakagawa
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Tohru Ohta
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Jun-Ichi Hamada
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Masanobu Kobayashi
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Hiroki Nagayasu
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan; .,School of Medical Technology, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
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3
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Kitagawa T, Kobayashi D, Baron B, Okita H, Miyamoto T, Takai R, Paudel D, Ohta T, Asaoka Y, Tokunaga M, Nakagawa K, Furutani-Seiki M, Araki N, Kuramitsu Y, Kobayashi M. AT-hook DNA-binding motif-containing protein one knockdown downregulates EWS-FLI1 transcriptional activity in Ewing's sarcoma cells. PLoS One 2022; 17:e0269077. [PMID: 36194562 PMCID: PMC9531837 DOI: 10.1371/journal.pone.0269077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 09/06/2022] [Indexed: 11/18/2022] Open
Abstract
Ewing's sarcoma is the second most common bone malignancy in children or young adults and is caused by an oncogenic transcription factor by a chromosomal translocation between the EWSR1 gene and the ETS transcription factor family. However, the transcriptional mechanism of EWS-ETS fusion proteins is still unclear. To identify the transcriptional complexes of EWS-ETS fusion transcription factors, we applied a proximal labeling system called BioID in Ewing's sarcoma cells. We identified AHDC1 as a proximal protein of EWS-ETS fusion proteins. AHDC1 knockdown showed a reduced cell growth and transcriptional activity of EWS-FLI1. AHDC1 knockdown also reduced BRD4 and BRG1 protein levels, both known as interacting proteins of EWS-FLI1. Our results suggest that AHDC1 supports cell growth through EWS-FLI1.
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Affiliation(s)
- Takao Kitagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
- * E-mail:
| | - Daiki Kobayashi
- Department of Omics and Systems Biology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
- Department of Tumor Genetics and Biology, Faculty of Life Sciences, Kumamoto University, Kumamoto-Shi, Kumamoto, Japan
| | - Byron Baron
- Center for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Hajime Okita
- Division of Diagnostic Pathology, Keio University School of Medicine, Shinano, Shinjuku-ku, Tokyo, Japan
| | - Tatsuo Miyamoto
- Department of Molecular and Cellular Physiology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Rie Takai
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
| | - Durga Paudel
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
| | - Tohru Ohta
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
| | - Yoichi Asaoka
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Masayuki Tokunaga
- Department of Obstetrics and Gynecology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Koji Nakagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
| | - Makoto Furutani-Seiki
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Norie Araki
- Department of Tumor Genetics and Biology, Faculty of Life Sciences, Kumamoto University, Kumamoto-Shi, Kumamoto, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
| | - Masanobu Kobayashi
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Kanazawa, Ishikari-Tobetsu, Hokkaido, Japan
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Custo S, Baron B, Felice A, Seria E. A comparative profile of total protein and six angiogenically-active growth factors in three platelet products. GMS Interdiscip Plast Reconstr Surg DGPW 2022; 11:Doc06. [PMID: 35909816 PMCID: PMC9284722 DOI: 10.3205/iprs000167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
OBJECTIVES Platelet-derived products have been shown as promising novel therapeutic agents for chronic wounds. However, their clinical use requires a greater degree of method standardisation, part of which involved more extensive cataloguing of their biochemical composition. This study aimed to quantify and compare total protein and 6 angiogenically-active growth factors in three distinct platelet products. METHODS Platelet Lysate (PL, n=5), Calcium-activated Platelet Rich Plasma (Ca-PRP, n=5) and Platelet-Rich Fibrin (PRF, n=5) were prepared from pooled platelet apheresis products (n=10). Ca-PRP and PRF were prepared from the same units (n=5) by activation with 20 mmolL-1 calcium chloride. PL was prepared from the remaining (n=5) units using an established lysate. Total protein was quantified with the Bradford Assay. Sandwich enzyme-linked immunosorbent assay was used to quantify six growth factors: epidermal growth factor (EGF), vascular endothelial growth factor (VEGF), hepatocyte growth factor (HGF), stromal cell derived growth factor-1α (SDF-1α), endostatin, and transforming growth factor-β1 (TGF-β1). RESULTS Protein retrieval differed significantly (p<0.05) between the three products: PL (11.35±0.80 mg/mL) < Ca-PRP (20.44±8.17 mg/mL) < PRF (40.67±3.13 mg/mL). Growth factor yield was considerable in all three products and differed significantly for: VEGF (PL<PRF); EGF (Ca-PRP<PRF); HFG (PL<Ca-PRP); Endostatin (PL<Ca-PRP, PRF<Ca-PRP, PL<PRF) and TGF-β1 (Ca-PRP<PL, Ca-PRP<PRF). CONCLUSIONS Platelet apheresis products contain a substantial quantity of the investigated pro- and anti-angiogenic growth factors. Their release varies depending on the manufacturing protocol used. Clinically, alternate products could thus be combined to provide a therapeutically optimal mix of growth factors.
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Affiliation(s)
- Scott Custo
- Department of Physiology & Biochemistry, Faculty of Medicine & Surgery, University of Malta, Msida, Malta,Centre for Molecular Medicine & Biobanking, University of Malta, Msida, Malta,*To whom correspondence should be addressed: Scott Custo, Department of Physiology & Biochemistry, Biomedical Science Building, University of Malta, Msida, MSD 2080, Malta, E-mail:
| | - Byron Baron
- Centre for Molecular Medicine & Biobanking, University of Malta, Msida, Malta
| | - Alex Felice
- Department of Physiology & Biochemistry, Faculty of Medicine & Surgery, University of Malta, Msida, Malta,Centre for Molecular Medicine & Biobanking, University of Malta, Msida, Malta,Division of Clinical Genetics, Department of Pathology, Mater Dei Hospital, Msida, Malta
| | - Elisa Seria
- Department of Physiology & Biochemistry, Faculty of Medicine & Surgery, University of Malta, Msida, Malta,Centre for Molecular Medicine & Biobanking, University of Malta, Msida, Malta
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Islam S, Kitagawa T, Baron B, Kuhara K, Nagayasu H, Kobayashi M, Chiba I, Kuramitsu Y. A standardized extract of cultured Lentinula edodes mycelia downregulates cortactin in gemcitabine-resistant pancreatic cancer cells. Oncol Lett 2021; 22:654. [PMID: 34386076 DOI: 10.3892/ol.2021.12915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/21/2021] [Indexed: 11/06/2022] Open
Abstract
AHCC®, a standardized extract of cultured Lentinula edodes mycelia, enhances the therapeutic effects and reduces the adverse effects of chemotherapy. Our previous study reported that treatment with AHCC® downregulated the expression levels of tumor-associated proteins in the gemcitabine-resistant pancreatic cancer cell line, KLM1-R. However, to the best of our knowledge, the role of AHCC® in the inhibition of cell migration remains unexplored. Cortactin (CTTN), an actin nucleation-promoting factor, has been reported to be upregulated and correlated with migration, invasion and metastasis in pancreatic cancer cells. The present study aimed to investigate the effects of AHCC® on cell migration and the protein expression level of CTTN in KLM1-R cells. The Gene Expression Profiling Interactive Analysis (GEPIA2), an online bioinformatics platform, was used to analyze CTTN mRNA expression levels in pancreatic cancer tissues compared with normal pancreatic tissues. CTTN mRNA expression and its association with clinicopathological characteristics were assessed by using the GEPIA2 platform. Next, the effects of AHCC® on KLM1-R cell migration were investigated by in vitro wound-healing assay. The KLM1-R cells were treated with AHCC® at a concentration of 10 mg/ml for 48 h. Western blotting was performed on of cell lysates with anti-CTTN or anti-actin antibodies to assess the protein expression levels of CTTN. Bioinformatics analysis indicated that the mRNA expression level of CTTN increased in pancreatic cancer tissues. The increased mRNA expression levels of CTTN were inversely associated with clinicopathological characteristics, including disease stages and prolonged patient survival times. The administration of 10 mg/ml AHCC® significantly inhibited KLM1-R cells migration compared with controls. The protein expression levels of CTTN were significantly reduced in AHCC®-treated KLM1-R cells, whereas actin expression was not affected. The downregulation of CTTN indicated the anti-metastatic potential of AHCC® in pancreatic cancer cells. Overall, AHCC® may have the potential to be a complementary and alternative therapeutic approach in treating pancreatic cancer.
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Affiliation(s)
- Shajedul Islam
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan.,Oral Health Science Center, Tokyo Dental College, Chiyoda, Tokyo 101-0061, Japan
| | - Takao Kitagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Byron Baron
- Faculty of Medicine and Surgery, Centre for Molecular Medicine and Biobanking, University of Malta, Msida, MSD 2080, Malta
| | - Keisuke Kuhara
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Hiroki Nagayasu
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Masanobu Kobayashi
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Itsuo Chiba
- Division of Disease Control and Molecular Epidemiology, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido 061-0293, Japan
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Islam S, Kitagawa T, Baron B, Abiko Y, Chiba I, Kuramitsu Y. ITGA2, LAMB3, and LAMC2 may be the potential therapeutic targets in pancreatic ductal adenocarcinoma: an integrated bioinformatics analysis. Sci Rep 2021; 11:10563. [PMID: 34007003 PMCID: PMC8131351 DOI: 10.1038/s41598-021-90077-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/05/2021] [Indexed: 02/07/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most common form of pancreatic cancer with an abysmal prognosis rate over the last few decades. Early diagnosis and prevention could effectively combat this malignancy. Therefore, it is crucial to discover potential biomarkers to identify asymptomatic premalignant or early malignant tumors of PDAC. Gene expression analysis is a powerful technique to identify candidate biomarkers involved in disease progression. In the present study, five independent gene expression datasets, including 321 PDAC tissues and 208 adjacent non-cancerous tissue samples, were subjected to statistical and bioinformatics analysis. A total of 20 differentially expressed genes (DEGs) were identified in PDAC tissues compared to non-cancerous tissue samples. Gene ontology and pathway enrichment analysis showed that DEGs were mainly enriched in extracellular matrix (ECM), cell adhesion, ECM-receptor interaction, and focal adhesion signaling. The protein-protein interaction network was constructed, and the hub genes were evaluated. Collagen type XII alpha 1 chain (COL12A1), fibronectin 1 (FN1), integrin subunit alpha 2 (ITGA2), laminin subunit beta 3 (LAMB3), laminin subunit gamma 2 (LAMC2), thrombospondin 2 (THBS2), and versican (VCAN) were identified as hub genes. The correlation analysis revealed that identified hub genes were significantly interconnected. Wherein COL12A1, FN1, ITGA2, LAMB3, LAMC2, and THBS2 were significantly associated with PDAC pathological stages. The Kaplan-Meier survival plots revealed that ITGA2, LAMB3, and LAMC2 expression were inversely correlated with a prolonged patient survival period. Furthermore, the Human Protein Atlas database was used to validate the expression and cellular origins of hub genes encoded proteins. The protein expression of hub genes was higher in pancreatic cancer tissue than in normal pancreatic tissue samples, wherein ITGA2, LAMB3, and LAMC2 were exclusively expressed in pancreatic cancer cells. Pancreatic cancer cell-specific expression of these three proteins may play pleiotropic roles in cancer progression. Our results collectively suggest that ITGA2, LAMB3, and LAMC2 could provide deep insights into pancreatic carcinogenesis molecular mechanisms and provide attractive therapeutic targets.
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Affiliation(s)
- Shajedul Islam
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Takao Kitagawa
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, MSD 2080, Malta
| | - Yoshihiro Abiko
- Division of Oral Medicine and Pathology, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Itsuo Chiba
- Division of Disease Control and Molecular Epidemiology, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Center, Health Sciences University of Hokkaido, 1757 Kanazawa, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan.
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Kuhara K, Kitagawa T, Baron B, Tokuda K, Sakamoto K, Nagano H, Nakamura K, Kobayashi M, Nagayasu H, Kuramitsu Y. Proteomic Analysis of Hepatocellular Carcinoma Tissues With Encapsulation Shows Up-regulation of Leucine Aminopeptidase 3 and Phosphoenolpyruvate Carboxykinase 2. Cancer Genomics Proteomics 2021; 18:307-316. [PMID: 33893083 DOI: 10.21873/cgp.20261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/05/2021] [Accepted: 03/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM Cancer is the most fatal disease worldwide whose most lethal characteristics are invasion and metastasis. Hepatocellular carcinoma (HCC) is one of the most fatal cancers worldwide. HCC often shows encapsulation, which is related to better prognosis. In this study, proteomic analysis of HCC tissues with and without encapsulation was performed, in order to elucidate the factors which play important roles in encapsulation. MATERIALS AND METHODS Five HCC tissues surrounded by a capsule and five HCC tissues which broke the capsule were obtained from patients diagnosed with HCC who underwent surgical liver resection. Protein samples from these tissues were separated by two-dimensional gel electrophoresis (2-DE), and the protein spots whose expression was different between encapsulated and non-encapsulated HCC tissues were identified through gel imaging analysis software. The selected protein spots were analyzed and identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). RESULTS Two-DE analysis showed 14 spots whose expression was different between encapsulated and non-encapsulated HCC tissues. Of these, 9 were up-regulated and 5 were down-regulated in HCC tissues without encapsulation. The validation by Western blot confirmed that leucine aminopeptidase 3 (LAP3) and phosphoenolpyruvate carboxykinase mitochondrial (PCK2) were up-regulated significantly in HCC tissues with a capsule, compared to HCC tissues that broke the capsule. CONCLUSION These findings suggest that LAP3 and PCK2 could be factors responsible for the maintenance of encapsulation in HCC tissues.
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Affiliation(s)
- Keisuke Kuhara
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan.,Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Takao Kitagawa
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Malta
| | - Kazuhiro Tokuda
- Graduate School of Health and Welfare, Yamaguchi Prefectural University, Yamaguchi, Japan
| | - Kazuhiko Sakamoto
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Hiroaki Nagano
- Department of Gastroenterological, Breast and Endocrine Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuyuki Nakamura
- Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan, Japan
| | - Masanobu Kobayashi
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Hiroki Nagayasu
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Yasuhiro Kuramitsu
- Advanced Research Promotion Centre, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan;
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Micallef I, Baron B. The Mechanistic Roles of ncRNAs in Promoting and Supporting Chemoresistance of Colorectal Cancer. Noncoding RNA 2021; 7:24. [PMID: 33807355 PMCID: PMC8103280 DOI: 10.3390/ncrna7020024] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/03/2021] [Accepted: 03/29/2021] [Indexed: 12/12/2022] Open
Abstract
Colorectal Cancer (CRC) is one of the most common gastrointestinal malignancies which has quite a high mortality rate. Despite the advances made in CRC treatment, effective therapy is still quite challenging, particularly due to resistance arising throughout the treatment regimen. Several studies have been carried out to identify CRC chemoresistance mechanisms, with research showing different signalling pathways, certain ATP binding cassette (ABC) transporters and epithelial mesenchymal transition (EMT), among others to be responsible for the failure of CRC chemotherapies. In the last decade, it has become increasingly evident that certain non-coding RNA (ncRNA) families are involved in chemoresistance. Research investigations have demonstrated that dysregulation of microRNAs (miRNAs), long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) contribute towards promoting resistance in CRC via different mechanisms. Considering the currently available data on this phenomenon, a better understanding of how these ncRNAs participate in chemoresistance can lead to suitable solutions to overcome this problem in CRC. This review will first focus on discussing the different mechanisms of CRC resistance identified so far. The focus will then shift onto the roles of miRNAs, lncRNAs and circRNAs in promoting 5-fluorouracil (5-FU), oxaliplatin (OXA), cisplatin and doxorubicin (DOX) resistance in CRC, specifically using ncRNAs which have been recently identified and validated under in vivo or in vitro conditions.
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Affiliation(s)
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, MSD2080 Msida, Malta;
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Loap P, Goudjil F, Baron B, Ribeiro M, Fourquet A, Kirova Y. Deep Inspiration Breath-Hold (DIBH) for Locoregional Breast Irradiation using Volumetric Modulated Arc Therapy (VMAT) and Intensity Modulated Proton Therapy (IMPT): A Dosimetric Comparison to Cardiac Substructure. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Loap P, Goudjil F, Baron B, Ribeiro M, Fourquet A, Kirova Y. Comparaison de l’exposition des sous-structures cardiaques lors de l’irradiation mammaire locorégionale par protons et par arcthérapie volumétrique modulée, avec ou sans blocage inspiratoire. Cancer Radiother 2020. [DOI: 10.1016/j.canrad.2020.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Tokuda K, Baron B, Yamashiro C, Kuramitsu Y, Kitagawa T, Kobayashi M, Sonoda KH, Kimura K. Up-regulation of the pentose phosphate pathway and HIF-1α expression during neural progenitor cell induction following glutamate treatment in rat ex vivo retina. Cell Biol Int 2020; 44:137-144. [PMID: 31393075 DOI: 10.1002/cbin.11212] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 08/04/2019] [Indexed: 01/24/2023]
Abstract
The metabolic state influences the regulation of neural stem/progenitor cells. The pentose phosphate pathway (PPP), an alternative metabolic pathway that operates parallel to glycolysis, not only provides key intermediates for biosynthetic reactions but also controls the fate of neural stem/progenitor cells. We have previously shown that glutamate application leads to the induction of neural progenitor cells in mature ex vivo rat retina. In this study, we investigated whether regulation of the PPP might be changed following glutamate treatment of the retina. Immunoblot analysis revealed that the amount of glucose-6-phosphate dehydrogenase (G6PD), the rate-limiting enzyme of the PPP as well as that of 6-phosphogluconate dehydrogenase (6PGD), another enzyme in this pathway, increased in the glutamate-treated retina. Consistent with the fact that both these enzymes generate reduced nicotinamide adenine dinucleotide phosphate (NADPH), the amount of NAPDH in the treated retina was significantly higher compared with that in the untreated retina. We also found that both DNA synthesis as well as the expression of fatty acid synthase (FASN) increased significantly in the glutamate-treated retina. Furthermore, hypoxia-inducible factor 1-α (HIF-1α), a positive transcriptional regulator of PPP enzymes, was up-regulated at both messenger RNA (mRNA) and protein levels. Finally, we found the interaction of HIF-1α with the M2 isozyme of pyruvate kinase (PKM2), with this interaction having been shown to contribute to a positive feedback loop in the control of glycolysis. Our results thus show that specific metabolic change in the PPP occurs in the process of neural progenitor cell induction in the mature rat retina.
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Affiliation(s)
- Kazuhiro Tokuda
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta
| | - Chiemi Yamashiro
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Yasuhiro Kuramitsu
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Takao Kitagawa
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Masaaki Kobayashi
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kazuhiro Kimura
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
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12
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Pisani G, Baron B. Nuclear paraspeckles function in mediating gene regulatory and apoptotic pathways. Noncoding RNA Res 2019; 4:128-134. [PMID: 32072080 PMCID: PMC7012776 DOI: 10.1016/j.ncrna.2019.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/18/2019] [Accepted: 11/18/2019] [Indexed: 12/26/2022] Open
Abstract
The nucleus is an essential hub for the regulation of gene expression in both spatial and temporal contexts. The complexity required to manage such a feat has resulted in the evolution of multiple sub-structures in the nucleus such as the nucleolus, small cajal bodies and nuclear stress bodies. The paraspeckle is another membraneless structure composed of RNA elements, primarily the long non-coding RNA (lncRNA) Nuclear Enriched Abundant Transcript 1 (NEAT1), associated with RNA binding proteins (RBPs). The paraspeckle is showing signs of being involved in various aspects of gene regulation and its role in many pathologies from cancer to viral infection is beginning to be addressed. Research into paraspeckle-directed gene regulation highlights the increase in the appreciation of the biological significance of non-coding RNA (ncRNA). This review will thus cover the basis of how a structure as large as a paraspeckle forms along with its functions. It will also explore how it effects pathological conditions and can be used in clinical intervention, with special emphasis on the multitude of methods utilised by paraspeckles for apoptotic regulation.
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Affiliation(s)
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, MSD2080, Malta
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13
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Zammit V, Farrugia M, Baron B. Redirection of transfusion waste and by-products for xeno-free research applications. J Clin Transl Res 2019; 5:50-59. [PMID: 32377579 PMCID: PMC7197051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/28/2019] [Accepted: 11/03/2019] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND AND AIM Whole blood is processed to derive a red cell concentrate, plasma, and buffy coat (BC) (from which platelets can be further extracted). Unused plasma and BCs are common in most blood establishments and considered a liability. The redirection of these products to xeno-free applications is not complicated or time-consuming and cannot only benefit the research recipients but also the blood establishment suppliers interested in research collaboration. The aim of this study is to describe a diverse yet by no means an exhaustive list of options for preparing blood products for research applications. MATERIALS AND METHODS Plasma and BCs from healthy donors were processed using basic laboratory techniques under aseptic conditions and tested for their ability to support the culture of mesenchymal stem cells in both 2D and 3D cultures using fibrin clots. The white blood cells (WBC) from the BCs were induced by phytohemagglutinin and CD marker expression was monitored using quantitative polymerase chain reaction. RESULTS All the methods tested for preparing blood products were successful but the applicability to different settings varied greatly with the most successful being the supplementation of Dulbecco's Modified Eagle Medium: Nutrient Mixture F-12 with 20% cryodepleted plasma and 0.1 mg/mL platelet lysate, the formation of fibrin clots using a ratio of 3:1 (medium: plasma) and the culturing of WBCs with 5 µg/mL phytohemagglutinin. CONCLUSIONS Using the wastes and by-products of blood establishments for xeno-free cell culturing of stem cells will reduce the reliance on commercially available, ready-made products, and increasing the potential for therapeutic stem cell research. Despite the benefits presented both in terms of cost and applications, further characterization and optimization of each blood product for reproducibility of results is required. RELEVANCE FOR PATIENTS The availability of low-cost xeno-free reagents will speed up therapeutic stem cell research and allow patients to receive treatments of the expected high standards at lower costs.
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Affiliation(s)
- Vanessa Zammit
- 1National Blood Transfusion Service, St. Luke’s Hospital, G’Mangia, PTA1010, Malta,2Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta
| | - Mark Farrugia
- 2Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta
| | - Byron Baron
- 2Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta,Corresponding author: Byron Baron Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta Tel: 00356 2340 2581.
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14
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Stenzl A, Szmulewitz R, Petrylak D, Holzbeierlein J, Villers A, Azad A, Alcaraz A, Alekseev B, Iguchi T, Shore N, Rosbrook B, Baron B, Kunieda F, Morlock R, Ramaswamy K, Armstrong A. ARCHES–efficacité du traitement par suppression androgénique en association avec l’enzalutamide ou placebo dans le cancer de la prostate hormono-sensible métastatique : résultats de l’antigène spécifique de la prostate (PSA). Prog Urol 2019. [DOI: 10.1016/j.purol.2019.08.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Stenzl A, Szmulewitz R, Petrylak D, Holzbeierlein J, Villers A, Azad A, Alcaraz A, Alekseev B, Iguchi T, Shore N, Rosbrook B, Baron B, Haas G, Morlock R, Ramaswamy K, Armstrong A. ARCHES - The role of androgen deprivation therapy (ADT) with enzalutamide (ENZA) or placebo (PBO) in metastatic hormone-sensitive prostate cancer (mHSPC): Post hoc analyses of high and low disease volume and risk groups. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz248.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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16
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Kuhara K, Tokuda K, Kitagawa T, Baron B, Tokunaga M, Harada K, Terasaki M, Uehara O, Ohta T, Takai R, Hamada JI, Kobayashi M, Shimo T, Nagayasu H, Kuramitsu Y. CUB Domain-containing Protein 1 (CDCP1) Is Down-regulated by Active Hexose-correlated Compound in Human Pancreatic Cancer Cells. Anticancer Res 2018; 38:6107-6111. [PMID: 30396925 DOI: 10.21873/anticanres.12961] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/17/2018] [Accepted: 10/18/2018] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We have previously reported that treatment of pancreatic cancer cells with active hexose-correlated compound (AHCC), an extract of a basidiomycete mushroom, decreases the levels of tumor-associated proteins including heat-shock protein 27 (HSP27), heat shock factor 1 (HSF1) and sex-determining region Y-box 2 (SOX2). The transmembrane glycoprotein, CUB domain-containing protein 1 (CDCP1) has been reported to be up-regulated in various cancers, and be associated with invasion and metastasis. The aim of this study was to examine the effect of AHCC on the expression of CDCP1 in KLM1-R cells. MATERIALS AND METHODS Gemcitabine-resistant pancreatic cancer cells (KLM1-R) were treated with AHCC (10 mg/ml) for 48 h. Western blot analysis of cell extracts with anti-CDCP1 or anti-actin antibodies was performed to assess the expression of CDCP1. RESULTS Expression of CDCP1 was reduced by AHCC treatment of KLM1-R cells, whereas expression of actin was not affected. The ratio of intensities of CDCP1/actin in AHCC-treated KLM1-R cells was significantly suppressed (p<0.05) compared to untreated cells. CONCLUSION AHCC down-regulated CDCP1 expression and inhibited the malignant progression of pancreatic cancer cells.
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Affiliation(s)
- Keisuke Kuhara
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan.,Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Kazuhiro Tokuda
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Masayuki Tokunaga
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Koji Harada
- Department of Oral and Maxillofacial Surgery, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Masaru Terasaki
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Osamu Uehara
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Tohru Ohta
- Research Institute of Health Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Rie Takai
- Research Institute of Health Sciences, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Jun-Ichi Hamada
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Masanobu Kobayashi
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Tsuyoshi Shimo
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Hiroki Nagayasu
- Division of Oral and Maxillofacial Surgery, Department of Human Biology and Pathophysiology, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Yasuhiro Kuramitsu
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
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17
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Zammit V, Brincat MR, Cassar V, Muscat-Baron Y, Ayers D, Baron B. MiRNA influences in mesenchymal stem cell commitment to neuroblast lineage development. Noncoding RNA Res 2018; 3:232-242. [PMID: 30533571 PMCID: PMC6257889 DOI: 10.1016/j.ncrna.2018.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal Stem Cells (MSCs) are widely used in therapeutic applications. Their plasticity and predisposition to differentiate into a variety of cell types, including those of the neuronal lineage, makes them ideal to study whether a selection of miRNAs may direct the differentiation of MSCs into neuroblasts or neuroblastoma to mature neurons. Following a short-listing, miR-107, 124 and 381 were selected as the most promising candidates for this differentiation. MSCs differentiated into cells of the neural lineage (Conditioned Cells) upon addition of conditioned medium (rich in microvesicles containing miRNAs) obtained from cultured SH-SY5Y neuroblastoma cells. Characterisation of stemness (including SOX2, OCT4, Nanog and HCG) and neural markers (including Nestin, MASH1, TUBB3 and NeuN1) provided insight regarding the neuronal state of each cell type. This was followed by transfection of the three miRNA antagonists and mimics, and quantification of their respective target genes. MiRNA target gene expression following transfection of MSCs with miRNA inhibitors and mimics demonstrated that these three miRNAs were not sufficient to induce differentiation. In conditioned cells the marginal changes in the miRNA target expression levels reflected potential for the modulation of intermediate neural progenitors and immature neuron cell types. Transfection of various combinations of miRNA inhibitors and/or mimics revealed more promise. Undoubtedly, a mix of biomolecules is being released by the SH-SY5Y in culture that induce MSCs to differentiate. Screening for those biomolecules acting synergistically with specific miRNAs will allow further combinatorial testing to elucidate the role of miRNA modulation.
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Affiliation(s)
- Vanessa Zammit
- National Blood Transfusion Service, St. Luke's Hospital, G'Mangia, PTA1010, Malta.,School of Biomedical Science and Physiology, University of Wolverhampton, Wolverhampton, WV1 1LY, UK
| | - Mark R Brincat
- Dept. of Obstetrics & Gynaecology, Mater Dei Hospital, Msida, MSD2090, Malta
| | - Viktor Cassar
- Dept. of Obstetrics & Gynaecology, Mater Dei Hospital, Msida, MSD2090, Malta
| | - Yves Muscat-Baron
- Dept. of Obstetrics & Gynaecology, Mater Dei Hospital, Msida, MSD2090, Malta
| | - Duncan Ayers
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida MSD2080, Malta.,School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, M13 9PL, UK
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida MSD2080, Malta
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18
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Portelli M, Baron B. Clinical Presentation of Preeclampsia and the Diagnostic Value of Proteins and Their Methylation Products as Biomarkers in Pregnant Women with Preeclampsia and Their Newborns. J Pregnancy 2018; 2018:2632637. [PMID: 30050697 PMCID: PMC6046127 DOI: 10.1155/2018/2632637] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022] Open
Abstract
Preeclampsia (PE) is a disorder which affects 1-10% of pregnant women worldwide. It is characterised by hypertension and proteinuria in the later stages of gestation and can lead to maternal and perinatal morbidity and mortality. Other than the delivery of the foetus and the removal of the placenta, to date there are no therapeutic approaches to treat or prevent PE. It is thus only possible to reduce PE-related mortality through early detection, careful monitoring, and treatment of the symptoms. For these reasons the search for noninvasive, blood-borne, or urinary biochemical markers that could be used for the screening, presymptomatic diagnosis, and prediction of the development of PE is of great urgency. So far, a number of biomarkers have been proposed for predicting PE, based on pathophysiological observations, but these have mostly proven to be unreliable and inconsistent between different studies. The clinical presentation of PE and data gathered for the biochemical markers placental growth factor (PlGF), soluble Feline McDonough Sarcoma- (fms-) like tyrosine kinase-1 (sFlt-1), asymmetric dimethylarginine (ADMA), and methyl-lysine is being reviewed with the aim of providing both a clinical and biochemical understanding of how these biomarkers might assist in the diagnosis of PE or indicate its severity.
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Affiliation(s)
- Maria Portelli
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
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19
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Shimada T, Nanimoto Y, Baron B, Kitagawa T, Tokuda K, Kuramitsu Y. Enzyme-treated Asparagus Extract Down-regulates Heat Shock Protein 27 of Pancreatic Cancer Cells. In Vivo 2018; 32:759-763. [PMID: 29936456 DOI: 10.21873/invivo.11305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND/AIM From the standpoint of cancer therapy, it is valuable to enhance the anticancer effects of chemotherapy. Our previous reports revealed that up-regulation of heat-shock protein 27 (HSP27) has been linked to gemcitabine resistance of pancreatic cancer cells. Enzyme-treated asparagus extract (ETAS) is an extract that is produced from asparagus. The purpose of this study was to investigate the effect of ETAS on the expression of HSP27 and other HSPs in the gemcitabine-resistant pancreatic cancer cell line KLM1-R. MATERIALS AND METHODS KLM1-R cells were treated with ETAS, and expression levels of HSPs, including HSP27, were investigated by western blotting. RESULTS ETAS down-regulated HSP27 and pHSP27 (serine 78) in KLM1-R cells, but, HSP70 and GRP78 levels were not altered. CONCLUSION This study suggests the potential therapeutic benefit of ETAS in enhancing anticancer effects by its combination with gemcitabine for patients with pancreatic cancer.
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Affiliation(s)
- Takuya Shimada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yuta Nanimoto
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuhiro Tokuda
- Department of Ophthalmology Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan .,Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Tobetsu, Japan
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20
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Tokuda K, Baron B, Kuramitsu Y, Kitagawa T, Tokuda N, Morishige N, Kobayashi M, Kimura K, Nakamura K, Sonoda KH. Optimization of fixative solution for retinal morphology: a comparison with Davidson's fixative and other fixation solutions. Jpn J Ophthalmol 2018; 62:481-490. [PMID: 29691783 DOI: 10.1007/s10384-018-0592-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 04/02/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE Numerous fixative solutions are available but many are not amenable to the histomorphological preservation of retinae. The investigators specifically focused on retinal histological studies, which rather than 4% formaldehyde (FA), often use Davidson's fixative. However the latter has its limitations. The purpose of this study was to produce a new fixative which maintains retinae closer to the in vivo conditions. STUDY DESIGN Experimental design. METHODS Four fixative formulations (4% paraformaldehyde, Davidson's fixative, modified Davidson's fixative and an in-house fixative - TB-Fix) were tested on retinae and the outcomes on histomorphology and immunohistochemical staining for selected antigenic markers was compared. RESULTS TB-Fix markedly improved morphological detail following hematoxylin and eosin staining, most importantly eliminating the spongiform appearance in the plexiform layer and the swelling of somata (including Müller cells), when compared to FA, Davidson's fixative and its modified version. Retinal samples fixed with TB-Fix or FA showed comparable results in immunohistological staining for neurons and glia in the retina. Importantly, while the whole eye fixed with FA collapsed in shape and induced artificial retinal detachment, the eye fixed with TB-Fix avoided deformation and detachment. Furthermore, we found that TB-Fix also prevented detachment from the culture plate when used to fix HEK293 cells, which are known to detach from the plate easily. CONCLUSION It was demonstrated that TB-Fix provides an overall improvement in the preservation of retinal morphology and chemical composition.
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Affiliation(s)
- Kazuhiro Tokuda
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.
| | - Byron Baron
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
- Faculty of Medicine and Surgery, Centre for Molecular Medicine and Biobanking, University of Malta, Msida, MSD2080, Malta
| | - Yasuhiro Kuramitsu
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
- Research Institute of Cancer Prevention, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Hokkaido, 061-0293, Japan
| | - Takao Kitagawa
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Nobuko Tokuda
- Faculty of Health Sciences, Yamaguchi University Graduate School of Medicine, Ube, 755-8505, Japan
| | - Naoyuki Morishige
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Masaaki Kobayashi
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Kazuhiro Kimura
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Kazuyuki Nakamura
- Department of Systems Biochemistry in Pathology and Regeneration, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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21
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Zammit V, Baron B, Ayers D. MiRNA Influences in Neuroblast Modulation: An Introspective Analysis. Genes (Basel) 2018; 9:genes9010026. [PMID: 29315268 PMCID: PMC5793179 DOI: 10.3390/genes9010026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 12/22/2017] [Accepted: 12/29/2017] [Indexed: 02/07/2023] Open
Abstract
Neuroblastoma (NB) is the most common occurring solid paediatric cancer in children under the age of five years. Whether of familial or sporadic origin, chromosome abnormalities contribute to the development of NB and cause dysregulation of microRNAs (miRNAs). MiRNAs are small non-coding, single stranded RNAs that target messenger RNAs at the post-transcriptional levels by repressing translation within all facets of human physiology. Such gene 'silencing' activities by miRNAs allows the development of regulatory feedback loops affecting multiple functions within the cell, including the possible differentiation of neural stem cell (NSC) lineage selection. Neurogenesis includes stages of self-renewal and fate specification of NSCs, migration and maturation of young neurones, and functional integration of new neurones into the neural circuitry, all of which are regulated by miRNAs. The role of miRNAs and their interaction in cellular processes are recognised aspects of cancer genetics, and miRNAs are currently employed as biomarkers for prognosis and tumour characterisation in multiple cancer models. Consequently, thorough understanding of the mechanisms of how these miRNAs interplay at the transcriptomic level will definitely lead to the development of novel, bespoke and efficient therapeutic measures, with this review focusing on the influences of miRNAs on neuroblast modulations leading to neuroblastoma.
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Affiliation(s)
- Vanessa Zammit
- National Blood Transfusion Service, St. Luke's Hospital, PTA1010 G'Mangia, Malta.
- School of Biomedical Science and Physiology, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, MSD2080 Msida, Malta.
| | - Duncan Ayers
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, MSD2080 Msida, Malta.
- School of Health Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester M13 9PL, UK.
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22
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Wang Y, Kuramitsu Y, Baron B, Kitagawa T, Tokuda K, Akada J, Maehara SI, Maehara Y, Nakamura K. PI3K inhibitor LY294002, as opposed to wortmannin, enhances AKT phosphorylation in gemcitabine-resistant pancreatic cancer cells. Int J Oncol 2016; 50:606-612. [PMID: 28000865 DOI: 10.3892/ijo.2016.3804] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/22/2016] [Indexed: 11/06/2022] Open
Abstract
LY294002 and wortmannin are chemical compounds that act as potent inhibitors of phosphoinositide 3-kinases (PI3Ks). Both of them are generally used to inhibit cell proliferation as cancer treatment by inhibiting the PI3K/protein kinase B (AKT) signaling pathway. In this study, LY294002 (but not wortmannin) showed an abnormal ability to enhance AKT phosphorylation (at Ser472) specifically in gemcitabine (GEM)-resistant pancreatic cancer (PC) cell lines PK59 and KLM1-R. LY294002 was shown to activate AKT and accumulate phospho-AKT at the intracellular membrane in PK59, which was abolished by treatment with AKTi-1/2 or wortmannin. Inhibiting AKT phosphorylation by treatment with AKTi-1/2 or wortmannin further enhanced LY294002-induced cell death in PK59 and KLM1-R cells. In addition, treatment with wortmannin alone failed to inhibit cell proliferation in both PK59 and KLM1-R cells. Thus, our results reveal that LY294002 displays the opposite effect on PI3K-dependent AKT phosphorylation, which maintains cell survival from the cytotoxicity introduced by LY294002 itself in GEM-resistant pancreatic cancer cells. We suggest that targeting the PI3K/AKT signaling pathway with inhibitors may be counterproductive for patients with PC who have acquired GEM-resistance.
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Affiliation(s)
- Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kazuhiro Tokuda
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Junko Akada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Shin-Ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Science, Kyusyu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Centre for Molecular Medicine and Biobanking, University of Malta, Msida, Republic of Malta
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
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Heidenreich A, Shore N, Villers A, Klotz L, Siemens D, van Os S, Baron B, Wang F, Chowdhury S. Prognostic factors in men with metastatic castration-resistant prostate cancer (mCRPC) treated with enzalutamide (ENZA) or bicalutamide (BIC) in TERRAIN. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw372.43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Stenzl A, Krivoshik A, Baron B, Hirmand M, Armstrong A. Efficacy and safety of enzalutamide plus androgen deprivation therapy vs placebo plus androgen deprivation therapy in men with metastatic hormone-sensitive prostate cancer: the ongoing ARCHES trial. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw372.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Wang Y, Kuramitsu Y, Baron B, Kitagawa T, Tokuda K, Akada J, Nakamura K. CGK733-induced LC3 II formation is positively associated with the expression of cyclin-dependent kinase inhibitor p21Waf1/Cip1 through modulation of the AMPK and PERK/CHOP signaling pathways. Oncotarget 2016; 6:39692-701. [PMID: 26486079 PMCID: PMC4741855 DOI: 10.18632/oncotarget.5625] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 10/02/2015] [Indexed: 11/25/2022] Open
Abstract
Microtubule-associated protein 1A/1B-light chain 3 (LC3)-II is essential for autophagosome formation and is widely used to monitor autophagic activity. We show that CGK733 induces LC3 II and LC3-puncta accumulation, which are not involved in the activation of autophagy. The treatment of CGK733 did not alter the autophagic flux and was unrelated to p62 degradation. Treatment with CGK733 activated the AMP-activated protein kinase (AMPK) and protein kinase RNA-like endoplasmic reticulum kinase/CCAAT-enhancer-binding protein homologous protein (PERK/CHOP) pathways and elevated the expression of p21Waf1/Cip1. Inhibition of both AMPK and PERK/CHOP pathways by siRNA or chemical inhibitor could block CGK733-induced p21Waf1/Cip1 expression as well as caspase-3 cleavage. Knockdown of LC3 B (but not LC3 A) abolished CGK733-triggered LC3 II accumulation and consequently diminished AMPK and PERK/CHOP activity as well as p21Waf1/Cip1 expression. Our results demonstrate that CGK733-triggered LC3 II formation is an initial event upstream of the AMPK and PERK/CHOP pathways, both of which control p21Waf1/Cip1 expression.
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Affiliation(s)
- Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuhiro Tokuda
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Junko Akada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan.,Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan, Japan
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Farrugia M, Baron B. The role of TNF-α in rheumatoid arthritis: a focus on regulatory T cells. J Clin Transl Res 2016; 2:84-90. [PMID: 30873466 PMCID: PMC6410649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 09/07/2016] [Accepted: 09/12/2016] [Indexed: 11/07/2022] Open
Abstract
The autoimmune disorder rheumatoid arthritis (RA) causes chronic inflammation and destruction of joints. T cells are a predominant component of the synovial environment in RA, however the functional role of these cells is not yet fully understood. This is in part due to the fact that the balance and importance of the relation of Tregs with T-effector cells in RA is still under investigation. The current treatment regimen for this debilitating disease focuses on controlling symptoms and preventing further joint damage through the use of therapies which affect different areas of the immune system at the synovium. One of the main therapies involves Tumor Necrosis Factor alpha (TNF-α) inhibitors. In the RA immune-environment, TNF-α has been shown to have an influential and extensive but as yet poorly understood effect on Treg function in vivo, and undoubtably an important role in the treatment of RA. Interestingly, the high levels of TNF-α found in RA patients appear to interfere with the mechanisms controlling the suppressive function of Tregs. Relevance for patients: This review focuses on the conflicting literature available regarding the role played by Tregs in RA and the impact of TNF-α and anti-TNF-α therapies on Tregs in this scenario. Individuals suffering from RA can benefit from better insight of the treatment mechanisms of the immunologic processes which occur throughout this disease, as current treatments for RA focus on several different areas of the immune system at the synovial compartment.
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Affiliation(s)
- Mark Farrugia
- Center for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
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Wang Y, Kuramitsu Y, Baron B, Kitagawa T, Akada J, Tokuda K, Cui D, Nakamura K. PERK/CHOP contributes to the CGK733-induced vesicular calcium sequestration which is accompanied by non-apoptotic cell death. Oncotarget 2016; 6:25252-65. [PMID: 26259235 PMCID: PMC4694829 DOI: 10.18632/oncotarget.4487] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 06/29/2015] [Indexed: 11/25/2022] Open
Abstract
Calcium ions (Ca2+) are indispensable for the physiology of organisms and the molecular regulation of cells. We observed that CGK733, a synthetic chemical substance, induced non-apoptotic cell death and stimulated reversible calcium sequestration by vesicles in pancreatic cancer cells. The endoplasmic reticulum (ER) stress eukaryotic translation initiation factor 2-alpha kinase 3/C/EBP homologous protein (PERK/CHOP) signaling pathway was shown to be activated by treatment with CGK733. Ionomycin, an ER stress drug and calcium ionophore, can activate PERK/CHOP signaling and accelerate CGK733-induced calcium sequestration. Knockdown of CHOP diminished CGK733-induced vesicular calcium sequestration, but had no effects on the cell death. Proteomic analysis demonstrated that the ER-located calcium-binding proteins, calumenin and protein S100-A11, were altered in CGK733-treated cells compared to non-treated controls. Our study reveals that CGK733-induced intracellular calcium sequestration is correlated with the PERK/CHOP signaling pathway and may also be involved in the dysregulations of calcium-binding proteins.
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Affiliation(s)
- Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Junko Akada
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuhiro Tokuda
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Dan Cui
- Department of Pathology, Yamguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamguchi University Graduate School of Medicine, Ube, Japan.,Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan, Japan
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Tokuda K, Kuramitsu Y, Baron B, Kitagawa T, Tokuda N, Kobayashi M, Kimura K, Sonoda KH, Nakamura K. Changes in metabolic proteins in ex vivo rat retina during glutamate-induced neural progenitor cell induction. Mol Cell Biochem 2016; 419:177-84. [PMID: 27421851 DOI: 10.1007/s11010-016-2769-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 07/09/2016] [Indexed: 12/11/2022]
Abstract
Understanding how energy metabolism and related proteins influence neural progenitor cells in adult tissues is critical for developing new strategies in clinical tissue regeneration therapy. We have recently reported that a subtoxic concentration of glutamate-induced neural progenitor cells in the mature ex vivo rat retina. We herein explore changes in the metabolic pathways during the process. We firstly observed an increase in lactate and lactate dehydrogenase concentration in the glutamate-treated retina. We then investigated the levels of glycolytic enzymes and confirmed significant upregulation of pyruvate kinase M type (PKM), especially PKM2, enolase, phosphoglycerate mutase 1 (PGAM1), and inosine-5'-monophosphate dehydrogenase (IMPDH1) in the glutamate-treated retina compared to the untreated retina. An analysis of the subcellular localization of PKM2 revealed nuclear translocation in the treated retina, which has been reported to regulate cell cycle proliferation and glycolytic enzymes. Our findings indicate that the mature rat retina undergoes an increase in aerobic glycolysis. PKM2, both in the cytoplasm and in the nucleus, may thus play an important role during neural progenitor cell induction, as it does in other proliferating cells.
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Affiliation(s)
- Kazuhiro Tokuda
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.,Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan.,Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida, MSD2080, Malta
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Nobuko Tokuda
- Faculty of Health Sciences, Yamaguchi University Graduate School of Medicine, Ube, 755-8505, Japan
| | - Masaaki Kobayashi
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Kazuhiro Kimura
- Department of Ophthalmology, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
| | - Koh-Hei Sonoda
- Department of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, 755-8505, Japan
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30
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Tokunaga M, Baron B, Kitagawa T, Tokuda K, Kuramitsu Y. Active Hexose-correlated Compound Down-regulates Heat Shock Factor 1, a Transcription Factor for HSP27, in Gemcitabine-resistant Human Pancreatic Cancer Cells. Anticancer Res 2015; 35:6063-6067. [PMID: 26504030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Active hexose-correlated compound (AHCC) is an extract of a basidiomycete mushroom that enhances the therapeutic effects and reduces the side-effects of chemotherapy. Our previous studies demonstrated that heat-shock protein 27 (HSP27) was involved in gemcitabine-resistance of pancreatic cancer cells and it was down-regulated by AHCC-treatment. However, how AHCC down-regulated HSP27 is unknown. In the present study, we focused on two transcription factors reported to induce HSP27, heat shock factor 1 (HSF1) and high-mobility group box 1 (HMGB1) and investigated the effect of AHCC on their expression. MATERIALS AND METHODS KLM1-R cells were treated with AHCC and the protein expression of HSF1 and HMGB1 were analyzed by western blotting. RESULTS The protein expression of HSF1 in KLM1-R was down-regulated by AHCC treatment. On the other hand, the protein expression of HMGB1 was not reduced in KLM1-R cells after AHCC treatment. CONCLUSION The possibility that AHCC down-regulated HSP27 through down-regulation of the HSF1, was herein shown.
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Affiliation(s)
- Masayuki Tokunaga
- Departments of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Byron Baron
- Departments of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Takao Kitagawa
- Departments of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kazuhiro Tokuda
- Departments of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yasuhiro Kuramitsu
- Departments of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
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31
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Kitagawa T, Okita H, Baron B, Tokuda K, Nakamura M, Wang Y, Akada J, Hoshida H, Akada R, Kuramitsu Y, Nakamura K. Mutant screening for oncogenes of Ewing's sarcoma using yeast. Appl Microbiol Biotechnol 2015; 99:6737-44. [PMID: 25936378 DOI: 10.1007/s00253-015-6621-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/09/2015] [Accepted: 04/12/2015] [Indexed: 11/30/2022]
Abstract
Many fusion genes, which are the result of chromosomal translocation and work as an oncogene, have been recently identified, but their mode of actions is still unclear. Here, we performed a yeast mutant screening for oncogenes of Ewing's sarcoma to easily identify essential regions responsible for fusion protein functions using a yeast genetic system. Three kinds of oncogenes including EWS/FLI1, EWS/ERG, and EWS/E1AF exhibited growth inhibition in yeast. In this screening, we identified 13 single amino acid substitution mutants which could suppress growth inhibition by oncogenes. All of the point mutation positions of the EWS/ETS family proteins were located within the ETS domain, which is responsible for the interaction with a specific DNA motif. Eight-mutated residues within the ETS domain matched to 13 completely conserved amino acid residues in the human ETS domains. Moreover, mutants also showed reduced transcriptional activities on the DKK2 promoter, which is upregulated by the EWS/ETS family, compared to that of the wild type. These results suggest that the ETS domain in the EWS/ETS family proteins may be a primary target for growth inhibition of Ewing's sarcoma and that this yeast screening system can be applied for the functional screening of the oncogenes.
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Affiliation(s)
- Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi, 755-8505, Japan,
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Baron B, Wang Y, Maehara SI, Maehara Y, Kuramitsu Y, Nakamura K. Resistance to gemcitabine in the pancreatic cancer cell line KLM1-R reversed by metformin action. Anticancer Res 2015; 35:1941-1949. [PMID: 25862846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND/AIM The pancreatic cancer cell line KLM1 can gain chemoresistance following gemcitabine (GEM) treatment. Metformin was found to be a useful sensitising agent towards GEM treatment following gain of chemoresistance. MATERIALS AND METHODS The proliferation of GEM-sensitive and -resistant cells was investigated over a range of metformin concentrations from 0.005 to 5 mM. The intra- and extra-cellular energetic profiles of these two cell types under metformin exposure were investigated through adenosine triphosphate (ATP) and L-lactate assays. RESULTS There was an unexpected decrease in intracellular L-lactate following gain of chemoresistance, despite observable medium acidification. At the biochemical level, a marked effect on phosphorylated proteins upstream of Akt, along the mTOR pathway, was observed at 6 h. These changes followed a time-dependent pattern linked closely to the changes in the energetic profile. CONCLUSION Together, these results indicate that metformin indirectly blocks protein phosphorylation, including that of heat shock protein 27 (HSP27).
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Affiliation(s)
- Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan Department of Anatomy and Cell Biology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta
| | - Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin-Ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan-shi, Japan
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Baron B, Kitagawa T, Nakamura K, Kuramitsu Y. Isolation of a growth factor stress-induced pancreatic cancer sub-population: insight into changes due to micro-environment. Cancer Genomics Proteomics 2015; 12:49-55. [PMID: 25770187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Micro-environment plays a crucial role in determining the phenotypes within a tumor. MATERIALS AND METHODS In order to understand how the micro-environment affects pancreatic cancer, KLM1 cells were cultured under growth factor stress by culturing in foetal bovine serum (FBS)-free and reduced (1%) medium over several passages to mimic the core of a solid tumor with low vascularisation. RESULTS Proteomic analysis on these conditioned pancreatic cancer cells, called KLM1-S, compared to the parent cell line KLM1 revealed that a number of proteins including α-enolase, GAPDH, GRP78, HSP60 and STIP-1 were dysregulated. Additionally, KLM1-S cells exhibited a 250-fold increase in half-maximal inhibitory concentration (IC50) over the parent cell line KLM1. CONCLUSION By decreasing their replication rate and levels of intracellular reactive oxygen species (ROS), KLM1-S cells are able to resist gemcitabine (GEM). The results obtained suggest that in KLM1 different phenotypes are a result of cellular plasticity rather than a committed transformation.
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Affiliation(s)
- Byron Baron
- Department of Anatomy and Cell Biology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan-shi, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
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Baron B, Fujioka T, Kitagawa T, Maehara SI, Maehara Y, Nakamura K, Kuramitsu Y. Comparative proteomic analysis of two stress-management strategies in pancreatic cancer. Cancer Genomics Proteomics 2015; 12:83-87. [PMID: 25770192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND It is known that cancers adopt different strategies to cope with stress and overcome adverse micro-environmental conditions. Such strategies are also applicable to chemo-therapeutic treatment, which could subsequently result in chemo-resistance. MATERIALS AND METHODS In order to investigate known stress-evasion strategies observed in pancreatic cancer, the stress-resistant KLM1-derived cell lines KLM1-R (Gemcitabine (GEM)-induced stress) and KLM1-S (growth factor restriction-induced stress) were employed. Comparative proteomics were employed between for the two cell lines that were also compared against the parent cell line KLM1. RESULTS Proteomic analysis revealed changes in the expression levels of 6 proteins, namely: transitional endoplasmic reticulum ATPase, lamin A/C, PDZ and LIM protein 1, calmodulin, heat shock protein 60 and alpha enolase. Resistance to GEM of KLM1-R and KLM1-S was found to be comparable, with KLM1-S cells exhibiting close to 1.5-fold higher half-maximal inhibitory concentration (IC50) compared to KLM1-R cells. CONCLUSION These results suggest that KLM1-R can be used as a model of directly-acquired chemoresistance (responding directly to evade GEM treatment), while KLM1-S is a good model of indirectly-acquired chemoresistance (formed in response to having to survive with less availability of growth factors), additionally gaining a selective advantage upon GEM treatment.
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Affiliation(s)
- Byron Baron
- Department of Anatomy and Cell Biology, Faculty of Medicine and Surgery, University of Malta, Msida, Malta Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
| | - Tsuyoshi Fujioka
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
| | - Shin-Ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushyu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushyu University, Fukuoka, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan-shi, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Graduate School of Medicine, Yamaguchi, Japan
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Wang Y, Kuramitsu Y, Kitagawa T, Baron B, Yoshino S, Maehara SI, Maehara Y, Oka M, Nakamura K. Cofilin-phosphatase slingshot-1L (SSH1L) is over-expressed in pancreatic cancer (PC) and contributes to tumor cell migration. Cancer Lett 2015; 360:171-6. [PMID: 25684665 DOI: 10.1016/j.canlet.2015.02.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 01/31/2015] [Accepted: 02/03/2015] [Indexed: 01/22/2023]
Abstract
Slingshot-1L (SSH1L), a cofilin-phosphatase, plays a role in actin dynamics and cell migration by reactivating cofilin-1. However, the expression of SSH1L in malignant diseases is poorly understood. The overexpression of SSH1L in cancerous tissue compared to the matched surrounding non-cancerous tissues from patients with late stages (III-IV) of PC was detected in 90% (9/10) of cases by western blotting. The expression of SSH1L was shown to be upregulated in tumor cells from 10.7% (11/102) of patients with pancreatic cancer (PC) by immunohistochemistry (IHC). The positive rate of SSH1L in patients with PC at stage VI (TNM) categorized as grade 3 was of 50% (2/4) and 15% (6/40), respectively. Moreover, SSH1L expression was shown to be up-regulated in the PC cell lines (KLM1, PANC-1 and MIAPaCa-2) with high metastatic potential. Loss of SSH1L expression was associated with an increase in the phosphorylation of cofilin-1 at serine-3 and further inhibited cell migration (but not proliferation) in KLM1, PANC-1 and MIAPaCa-2. Actin polymerization inhibitor cytochalasin-D was sufficient to abrogate cell migration of PC without changing SSH1L expression. These results reveal that SSH1L is upregulated in a subset of PCs and that the SSH1L/cofilin-1 signal pathway is associated positively in PC with cell migration. Our study may thus provide potential targets to prevent and/or treat PC invasion and metastasis in patients with SSH1L-positive PC.
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Affiliation(s)
- Yufeng Wang
- Departments of Biochemistry and Functional Proteomics, Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yasuhiro Kuramitsu
- Departments of Biochemistry and Functional Proteomics, Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | - Takao Kitagawa
- Departments of Biochemistry and Functional Proteomics, Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Byron Baron
- Departments of Biochemistry and Functional Proteomics, Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shigefumi Yoshino
- Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shin-Ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Science, Kyusyu University, 3-1-1 Maidashi Higashiku, Fukuokashi, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Science, Kyusyu University, 3-1-1 Maidashi Higashiku, Fukuokashi, Fukuoka, Japan
| | - Masaaki Oka
- Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazuyuki Nakamura
- Departments of Biochemistry and Functional Proteomics, Digestive Surgery of Applied Molecular Bioscience, Yamaguchi University Graduate School of Medicine, Ube, Japan; Centre of Clinical Laboratories, Tokuyama Medical Association Hospital, Shunan, Japan
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Ostrowski M, Prochnicki T, Prevost M, Sauguet L, Raynal B, Baron B, Corringer PJ, Faure G. 22. GLIC, a proton-gated ion channel from Gloeobacter violaceus as a new target for phospholipase A2. Toxicon 2014. [DOI: 10.1016/j.toxicon.2014.08.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wang Y, Kuramitsu Y, Tokuda K, Baron B, Kitagawa T, Akada J, Maehara SI, Maehara Y, Nakamura K. Gemcitabine induces poly (ADP-ribose) polymerase-1 (PARP-1) degradation through autophagy in pancreatic cancer. PLoS One 2014; 9:e109076. [PMID: 25271986 PMCID: PMC4182782 DOI: 10.1371/journal.pone.0109076] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 09/08/2014] [Indexed: 01/02/2023] Open
Abstract
Poly (ADP-ribose) polymerase-1 (PARP-1) and autophagy play increasingly important roles in DNA damage repair and cell death. Gemcitabine (GEM) remains the first-line chemotherapeutic drug for pancreatic cancer (PC). However, little is known about the relationship between PARP-1 expression and autophagy in response to GEM. Here we demonstrate that GEM induces DNA-damage response and degradation of mono-ADP ribosylated PARP-1 through the autophagy pathway in PC cells, which is rescued by inhibiting autophagy. Hypoxia and serum starvation inhibit autophagic activity due to abrogated GEM-induced mono-ADP-ribosylated PARP-1 degradation. Activation of extracellular regulated protein kinases (ERK) induced by serum starvation shows differences in intracellular localization as well as modulation of autophagy and PARP-1 degradation in GEM-sensitive KLM1 and -resistant KLM1-R cells. Our study has revealed a novel role of autophagy in PARP-1 degradation in response to GEM, and the different impacts of MEK/ERK signaling pathway on autophagy between GEM-sensitive and -resistant PC cells.
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Affiliation(s)
- Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
- * E-mail:
| | - Kazuhiro Tokuda
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Junko Akada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Shin-ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Science, Kyusyu University, Fukuokashi, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Science, Kyusyu University, Fukuokashi, Fukuoka, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
- Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan, Japan
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Tombal B, Borre M, Rathenborg P, Werbrouck P, van Poppel H, Heidenreich A, Iversen P, Braeckman J, Heracek J, Baskin-Bey E, Ouatas T, Perabo F, Phung D, Baron B, Hirmand M, Smith M. Long-Term Efficacy and Safety of Enzalutamide Monotherapy in Hormone-Naive Prostate Cancer: 2-Year Follow-Up. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu336.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nawata J, Kuramitsu Y, Wang Y, Kitagawa T, Tokuda K, Baron B, Akada J, Suenaga S, Kaino S, Maehara SI, Maehara Y, Sakaida I, Nakamura K. Active hexose-correlated compound down-regulates sex-determining region Y-box 2 of pancreatic cancer cells. Anticancer Res 2014; 34:4807-4811. [PMID: 25202061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
BACKGROUND/AIM Active hexose-correlated compound (AHCC) is an extract of basidiomycete mushroom. It has been used as health food due to its efficacy of enhancing antitumor effects and reducing adverse effects of chemotherapy. Our previous research showed that AHCC down-regulated heat-shock protein (HSP)-27 and exhibited cytotoxic effects against gemcitabine-resistant pancreatic cancer cells. Sex-determining region Y-box 2 (SOX2) is reported to be up-regulated in other kinds of cancer cells and involved in carcinogenesis and malignancy. The aim of this study was to investigate the effects of AHCC on protein expression of SOX2 in the gemcitabine-resistant pancreatic cancer cell line KLM1-R. MATERIALS AND METHODS AHCC was applied to KLM1-R cells and expression of SOX2 was analyzed by western blotting. RESULTS AHCC down-regulated SOX2 in KLM1-R cells. Nanog and Oct4, co-workers of SOX2 in maintaining pluripotency, did not exhibit any significant change in protein expression. CONCLUSION We showed the potential of AHCC to be a candidate for combinatorial therapy in anticancer drug regimens. This result suggests that the target of AHCC in expressing therapeutic efficacy was not the pluripotent cells such as cancer stem cells (CSCs) but SOX2-specific.
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Affiliation(s)
- Junya Nawata
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Yufeng Wang
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Takao Kitagawa
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuhiro Tokuda
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Byron Baron
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Junko Akada
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Shigeyuki Suenaga
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan Department of Hepatology and Gastroenterology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Seiji Kaino
- Department of Hepatology and Gastroenterology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Shin-Ichiro Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyusyu University, Fukuoka, Japan
| | - Yoshihiko Maehara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyusyu University, Fukuoka, Japan
| | - Isao Sakaida
- Department of Hepatology and Gastroenterology, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Kazuyuki Nakamura
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan Centre of Clinical Laboratories in Tokuyama Medical Association Hospital, Shunan-shi, Japan
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Reiff RE, Ali BR, Baron B, Yu TW, Ben-Salem S, Coulter ME, Schubert CR, Hill RS, Akawi NA, Al-Younes B, Kaya N, Evrony GD, Al-Saffar M, Felie JM, Partlow JN, Sunu CM, Schembri-Wismayer P, Alkuraya FS, Meyer BF, Walsh CA, Al-Gazali L, Mochida GH. METTL23, a transcriptional partner of GABPA, is essential for human cognition. Hum Mol Genet 2014; 23:3456-66. [PMID: 24501276 DOI: 10.1093/hmg/ddu054] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Whereas many genes associated with intellectual disability (ID) encode synaptic proteins, transcriptional defects leading to ID are less well understood. We studied a large, consanguineous pedigree of Arab origin with seven members affected with ID and mild dysmorphic features. Homozygosity mapping and linkage analysis identified a candidate region on chromosome 17 with a maximum multipoint logarithm of odds score of 6.01. Targeted high-throughput sequencing of the exons in the candidate region identified a homozygous 4-bp deletion (c.169_172delCACT) in the METTL23 (methyltransferase like 23) gene, which is predicted to result in a frameshift and premature truncation (p.His57Valfs*11). Overexpressed METTL23 protein localized to both nucleus and cytoplasm, and physically interacted with GABPA (GA-binding protein transcription factor, alpha subunit). GABP, of which GABPA is a component, is known to regulate the expression of genes such as THPO (thrombopoietin) and ATP5B (ATP synthase, H+ transporting, mitochondrial F1 complex, beta polypeptide) and is implicated in a wide variety of important cellular functions. Overexpression of METTL23 resulted in increased transcriptional activity at the THPO promoter, whereas knockdown of METTL23 with siRNA resulted in decreased expression of ATP5B, thus revealing the importance of METTL23 as a regulator of GABPA function. The METTL23 mutation highlights a new transcriptional pathway underlying human intellectual function.
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Affiliation(s)
- Rachel E Reiff
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Harvard-Massachusetts Institute of Technology (MIT) Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Bassam R Ali
- Department of Pathology, College of Medicine and Health Sciences
| | - Byron Baron
- Department of Anatomy, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
| | - Timothy W Yu
- Division of Genetics and Genomics, Department of Medicine Department of Pediatrics Pediatric Neurology Unit, Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard University, Cambridge, MA 02142, USA
| | - Salma Ben-Salem
- Department of Pathology, College of Medicine and Health Sciences
| | - Michael E Coulter
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Harvard-Massachusetts Institute of Technology (MIT) Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Christian R Schubert
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Department of Pediatrics Research Laboratory of Electronics and Department of Electrical Engineering and Computer Science, Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - R Sean Hill
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA
| | - Nadia A Akawi
- Department of Pathology, College of Medicine and Health Sciences
| | - Banan Al-Younes
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Namik Kaya
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Gilad D Evrony
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Program in Biological and Biomedical Sciences and
| | - Muna Al-Saffar
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Department of Paediatrics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al-Ain, United Arab Emirates
| | - Jillian M Felie
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA
| | - Jennifer N Partlow
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA
| | - Christine M Sunu
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA
| | - Pierre Schembri-Wismayer
- Department of Anatomy, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
| | - Fowzan S Alkuraya
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia Department of Anatomy and Cell Biology, College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Brian F Meyer
- Department of Genetics, King Faisal Specialist Hospital and Research Centre, Riyadh 11211, Saudi Arabia
| | - Christopher A Walsh
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Howard Hughes Medical Institute, Boston Children's Hospital, Boston, MA 02115, USA Department of Pediatrics Department of Neurology, Harvard Medical School, Boston, MA 02115, USA Program in Medical and Population Genetics, Broad Institute of MIT and Harvard University, Cambridge, MA 02142, USA
| | - Lihadh Al-Gazali
- Department of Paediatrics, College of Medicine and Health Sciences, United Arab Emirates University, PO Box 17666, Al-Ain, United Arab Emirates
| | - Ganeshwaran H Mochida
- Division of Genetics and Genomics, Department of Medicine Manton Center for Orphan Disease Research and Department of Pediatrics Pediatric Neurology Unit, Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA
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Wang Y, Kuramitsu Y, Tokuda K, Okada F, Baron B, Akada J, Kitagawa T, Nakamura K. Proteomic analysis indicates that overexpression and nuclear translocation of lactoylglutathione lyase (GLO1) is associated with tumor progression in murine fibrosarcoma. Electrophoresis 2014; 35:2195-202. [PMID: 24532130 DOI: 10.1002/elps.201300497] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 01/31/2014] [Accepted: 02/09/2014] [Indexed: 11/11/2022]
Abstract
Lactoylglutathione lyase (GLO1), a ubiquitously expressed methylglyoxal (MG) detoxification enzyme, is implicated in the progression of various human malignant diseases. However, the role of GLO1 in the development or progression of murine fibrosarcoma is still unclear. We performed proteomic analysis to identify differences in the intracellular proteins of the regressive tumor cell line QR-32 and the inflammatory cell-promoting progressive tumor cell line QRsP-11 of murine fibrosarcoma by 2DE combined with MS. Seven upregulated proteins were identified in QRsP-11 compared to QR-32 cells, namely, GLO1, annexin A1, adenylate kinase isoenzyme 1, transcription factor BTF3, myosin light polypeptide 6, low molecular weight phosphotyrosine protein phosphatase and nucleoside diphosphate kinase B. Heat shock protein beta-1 (HspB1), a methylglyoxal-adducted protein, is concomitantly over-expressed in QRsP-11 as compared to QR-32 cells. We also found out that GLO1 is translocated into the nucleus to a higher extent in QRsP-11 compared to QR-32 cells, which can be reversed by using a MEK inhibitor (U0126). Moreover, U0126 and GLO1 siRNA can inhibit cell proliferation and migration in QRsP-11 cells. Our data suggest that overexpression and nuclear translocation of GLO1 might be associated with tumor progression in murine fibrosarcoma.
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Affiliation(s)
- Yufeng Wang
- Departments of Biochemistry and Functional Proteomics Yamaguchi University Graduate School of Medicine, Ube, Japan
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42
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Suenaga S, Kuramitsu Y, Wang Y, Baron B, Kitagawa T, Akada J, Tokuda K, Kaino S, Maehara SI, Maehara Y, Sakaida I, Nakamura K. Human pancreatic cancer cells with acquired gemcitabine resistance exhibit significant up-regulation of peroxiredoxin-2 compared to sensitive parental cells. Anticancer Res 2013; 33:4821-4826. [PMID: 24222118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Gemcitabine (2'-deoxy-2'-difluorodeoxycytidine) is the only clinically effective drug for pancreatic cancer. However, high levels of inherent and acquired tumor resistance to gemcitabine lead to difficulty of chemotherapy for pancreatic cancer. We have reported on a proteomic study of gemcitabine-sensitive KLM1 and -resistant KLM1-R pancreatic cancer cells, and identified some proteins which were shown to be up-regulated in KLM1-R compared to KLM1 cells. In those proteomic studies, peroxiredoxin-2 was listed as an up-regulated protein in KLM1-R cells. Peroxiredoxin-2 is a member of a family of peroxiredoxins providing a protective role for redox damage. In this study, the expression of peroxiredoxin-2 in KLM1 and KLM1-R cells was compared. It was found that peroxiredoxin-2 was significantly up-regulated in KLM1-R cells compared to KLM1 cells (p<0.001). However, peroxiredoxin-1 expression was significantly down-regulated in KLM1-R cells (p<0.001). These results suggest that peroxiredoxin-2 is a possible candidate biomarker for predicting the response of patients with pancreatic cancer to treatment with gemcitabine.
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Affiliation(s)
- Shigeyuki Suenaga
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
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Kuramitsu Y, Wang Y, Okada F, Baron B, Tokuda K, Kitagawa T, Akada J, Nakamura K. Malignant progressive tumor cell clone exhibits significant up-regulation of cofilin-2 and 27-kDa modified form of cofilin-1 compared to regressive clone. Anticancer Res 2013; 33:3661-3665. [PMID: 24023293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
QR-32 is a regressive murine fibrosarcoma cell clone which cannot grow when they are transplanted in mice; QRsP-11 is a progressive malignant tumor cell clone derived from QR-32 which shows strong tumorigenicity. A recent study showed there to be differentially expressed up-regulated and down-regulated proteins in these cells, which were identified by proteomic differential display analyses by using two-dimensional gel electrophoresis and mass spectrometry. Cofilins are small proteins of less than 20 kDa. Their function is the regulation of actin assembly. Cofilin-1 is a small ubiquitous protein, and regulates actin dynamics by means of binding to actin filaments. Cofilin-1 plays roles in cell migration, proliferation and phagocytosis. Cofilin-2 is also a small protein, but it is mainly expressed in skeletal and cardiac muscles. There are many reports showing the positive correlation between the level of cofilin-1 and cancer progression. We have also reported an increased expression of cofilin-1 in pancreatic cancer tissues compared to adjacent paired normal tissues. On the other hand, cofilin-2 was significantly less expressed in pancreatic cancer tissues. Therefore, the present study investigated the comparison of the levels of cofilin-1 and cofilin-2 in regressive QR-32 and progressive QRsP-11cells by western blotting. Cofilin-2 was significantly up-regulated in QRsP-11 compared to QR-32 cells (p<0.001). On the other hand, the difference of the intensities of the bands of cofilin-1 (18 kDa) in QR-32 and QRsP-11 was not significant. However, bands of 27 kDa showed a quite different intensity between QR-32 and QRsP-11, with much higher intensities in QRsP-11 compared to QR-32 (p<0.001). These results suggested that the 27-kDa protein recognized by the antibody against cofilin-1 is a possible biomarker for progressive tumor cells.
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Affiliation(s)
- Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
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Tanaka T, Kuramitsu Y, Wang Y, Baron B, Kitagawa T, Tokuda K, Hirakawa K, Yashiro M, Naito S, Nakamura K. Glyoxalase 1 as a candidate for indicating the metastatic potential of SN12C human renal cell carcinoma cell clones. Oncol Rep 2013; 30:2365-70. [PMID: 23982595 DOI: 10.3892/or.2013.2699] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 07/16/2013] [Indexed: 11/06/2022] Open
Abstract
Three clones with differential metastatic potential were established from the parental SN12C human renal cell carcinoma (HRCC). We previously reported that in the two high metastatic SN12C clones, two isoforms of ubiquitin carboxyl-terminal hydrolase isozyme L1 (UCH‑L1) showed decreased expression by using two-dimensional electrophoresis (2‑DE) covering a pH range (pH 3.0‑10.0) followed by liquid chromatography‑tandem mass spectrometry. However, in the case of the low metastatic clone, the spot volume for UCH‑L1 was almost the same as for the parental SN12C. In the present study, we found one protein spot which was correlated with the metastatic potential of SN12C clones by using 2‑DE over a narrow pH range (pH 4.0‑7.0). The protein glyoxalase 1 (GLO1) appeared to be directly proportional to the metastatic potential of the SN12C clones. GLO1 was the only protein which consistently varied according to the metastatic potentials of SN12C clones. GLO1 was increased in high metastatic cell lines by western blot analysis. These findings suggest that GLO1 is associated with the metastatic potential of SN12C HRCC clones. We expanded our experimental range to include clones of scirrhous gastric cancer cell lines (OCUM‑2M, OCUM‑2D and OCUM‑2MLN) and similar results were obtained, thereby further strengthening our original findings.
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Affiliation(s)
- Toshiyuki Tanaka
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi 755-8505, Japan
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Galioot A, Godet A, Maire V, Falanga P, Cayla X, Baron B, England P, Garcia A. Transducing properties of a pre-structured α-helical DPT-peptide containing a short canine adenovirus type 2 E4orf4 PP2A1-binding sequence. Biochim Biophys Acta Gen Subj 2013; 1830:3578-83. [DOI: 10.1016/j.bbagen.2013.02.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 02/21/2013] [Accepted: 02/27/2013] [Indexed: 10/27/2022]
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Kuramitsu Y, Tominaga W, Baron B, Tokuda K, Wang Y, Kitagawa T, Nakamura K. Up-regulation of DDX39 in human malignant pleural mesothelioma cell lines compared to normal pleural mesothelial cells. Anticancer Res 2013; 33:2557-2560. [PMID: 23749908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Malignant pleural mesothelioma (MPM) is a malignant tumor originating from mesothelial cells existing in pleura. Since its incidence, it is closely related to the amount and time of exposure to asbestos, and the latency period after exposure to asbestos is very long, the incidence may increase over the next two decades. Since early detection is very difficult and there is no standard curative therapy, it is important to understand the biology of MPM, and to find biomarkers and molecular targets for its therapy. DDX39 is one of the Asp-Glu-Ala-Asp (DEAD)-box RNA helicases, which are required for the export of mRNA out of the nucleus, and transcription, splicing and transport of mRNA. Some reports have shown differential expression of DDX39 in tumor cells or tissues such as lung squamous cell cancer, gastrointestinal stromal tumor and urinary bladder cancer. In the present study, the protein levels of DDX39 in the human MPM cell lines NCI-H28, NCI-H2052 and NCI-H2452, and the human pleural mesothelial cell line MeT-5A were investigated by western blotting. The protein levels of DDX39 were found to be higher in NCI-H28, NCI-H2052 and NCI-H2452 compared to MeT-5A. The intensity of the bands of DDX39 in NCI-H28, NCI-H2052 and NCI-H2452 cells were increased by 1.351-, 1.887- and 2.024-fold, respectively, compared to MPM cells. These results suggest that DDX39 is a possible candidate biomarker for molecular-targeting of MPM.
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Affiliation(s)
- Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, Ube, Japan
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Kuramitsu Y, Tominaga W, Baron B, Kitagawa T, Nakamura K. 106P PROTEOMIC ANALYSIS SHOWED HEAT SHOCK 70 KDA PROTEIN AND 78 KDA GLUCOSE-REGULATED PROTEIN WERE UP-REGULATED IN HUMAN MALIGNANT PLEURAL MESOTHELIOMA CELLS. Lung Cancer 2013. [DOI: 10.1016/s0169-5002(13)70325-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Goujon Y, Baron B, Esteve D, Faye MJ, Minaro L, Pommereau P, Rindel D, Talavera MP, Pommereau A. Surveillance des biomarqueurs d’atteinte rénale des salariés exposés à un agent chimique néphrotoxique : étude de faisabilité. ARCH MAL PROF ENVIRO 2012. [DOI: 10.1016/j.admp.2012.03.258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Baron B, Schembri-Wismayer P. Using the distribution of the CCR5-Δ32 allele in third-generation Maltese citizens to disprove the Black Death hypothesis. Int J Immunogenet 2010; 38:139-43. [DOI: 10.1111/j.1744-313x.2010.00984.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kuramitsu Y, Baron B, Yoshino S, Zhang X, Tanaka T, Yashiro M, Hirakawa K, Oka M, Nakamura K. Proteomic differential display analysis shows up-regulation of 14-3-3 sigma protein in human scirrhous-type gastric carcinoma cells. Anticancer Res 2010; 30:4459-4465. [PMID: 21115893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This study performed proteomic differential display analysis of human scirrhous-type gastric carcinoma (SGC) cell lines and normal gastric mucosa (NGM) tissues by using two-dimensional gel electrophoresis (2-DE) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). The human SGC cell lines were OCUM-1, OCUM-2M, OCUM-2MLN, OCUM-2D, OCUM-D3, OCUM-9 and OCUM-12. Among the SGC cell lines and the NGM tissues, 28 protein spots were found whose expression levels were different from the results of 2-DE: 19 protein spots appeared higher, and 9 other protein spots appeared lower in SGCs than in NGM tissues. These spots were analysed by LC-MS/MS analysis and identified by a peptide sequence tag. Identified increased spots included elongation factor 1-beta, 14-3-3 sigma, tropomyosin alpha-4 chain, protein DJ-1, nucleoside diphosphate kinase A, elongation factor Tu and peroxiredoxin-1. Western blot analysis showed increased protein level of 14-3-3 sigma in SGCs. Although OCUM-1 and AGS (gastric cancer) showed up-regulation of 14-3-3 sigma, MiaPaca-2 (pancreatic cancer), Huh-7 (HCC) and NCI-H2052 (malignant pleural mesothelioma) showed very weak expression of 14-3-3 sigma. The up-regulation of 14-3-3 sigma may play an important role in SGC carcinogenesis and progression and may be used as a diagnostic biomarker of SGC.
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Affiliation(s)
- Yasuhiro Kuramitsu
- Department of Biochemistry and Functional Proteomics, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan.
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