51
|
Ofuji K, Saito K, Suzuki S, Shimomura M, Shirakawa H, Nobuoka D, Sawada Y, Yoshimura M, Tsuchiya N, Takahashi M, Yoshikawa T, Tada Y, Konishi M, Takahashi S, Gotohda N, Nakamoto Y, Nakatsura T. Perioperative plasma glypican-3 level may enable prediction of the risk of recurrence after surgery in patients with stage I hepatocellular carcinoma. Oncotarget 2018; 8:37835-37844. [PMID: 28035063 PMCID: PMC5514954 DOI: 10.18632/oncotarget.14271] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 11/30/2016] [Indexed: 12/15/2022] Open
Abstract
Glypican-3 (GPC3) is a glycosylphosphatidylinositol-anchored cell surface protein overexpressed in hepatocellular carcinoma(HCC), and its overexpression is associated with poor prognosis. The diagnostic potential of GPC3 as a serum marker has been reported. In the present study, we evaluated the usefulness of plasma GPC3 as a predictor for recurrence after surgical resection in stage I HCC patients by newly developed an enzyme-linked immunosorbent assay (ELISA) system. Current study demonstrated that high levels of preoperative plasma GPC3 patients tended to experience postoperative recurrence. On the other hand, pre- and postoperative plasma GPC3 positivity of non-recurrence patients was very low. Moreover, even after surgery, approximately half of patients who experienced recurrence were positive for plasma GPC3. Postoperative plasma GPC3 positivity was significantly correlated with worse recurrence-free survival. Immuohistochemical analysis also showed positive rate of GPC3-expression in HCC was higher in recurrence patients than in non-recurrence patients. These results suggested that both pre- and postoperative plasma GPC3 levels may be accurate predictors for recurrence after curative resection of early-stage HCC. It should be noted that the current study only examined a small number of cases; thus, a larger sample size is necessary to validate GPC3 as a predictor for HCC recurrence.
Collapse
Affiliation(s)
- Kazuya Ofuji
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan.,Second Department of Internal Medicine, University of Fukui, Eiheiji-cho Yoshida-gun, Fukui 910-1193, Japan
| | - Keigo Saito
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Shiro Suzuki
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Manami Shimomura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Hirofumi Shirakawa
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Daisuke Nobuoka
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Yu Sawada
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Mayuko Yoshimura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Nobuhiro Tsuchiya
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Mari Takahashi
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Toshiaki Yoshikawa
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Yoshitaka Tada
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| | - Masaru Konishi
- Division of Hepatobiliary Pancreatic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan
| | - Shinichiro Takahashi
- Division of Hepatobiliary Pancreatic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan
| | - Naoto Gotohda
- Division of Hepatobiliary Pancreatic Surgery, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan
| | - Yasunari Nakamoto
- Second Department of Internal Medicine, University of Fukui, Eiheiji-cho Yoshida-gun, Fukui 910-1193, Japan
| | - Tetsuya Nakatsura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Chiba 277-8577, Japan
| |
Collapse
|
52
|
El-Saadany S, El-Demerdash T, Helmy A, Mayah WW, El-Sayed Hussein B, Hassanien M, Elmashad N, Fouad MA, Basha EA. Diagnostic Value of Glypican-3 for Hepatocellular Carcinomas. Asian Pac J Cancer Prev 2018; 19:811-817. [PMID: 29582639 PMCID: PMC5980860 DOI: 10.22034/apjcp.2018.19.3.811] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2017] [Indexed: 12/12/2022] Open
Abstract
Background: Hepatocellular carcinoma (HCC) is a common and dangerous malignancy in many parts of the world, and especially in Egypt. Early diagnosis is the most important step in successful HCC management. However most cases are detected at late stage making effective intervention impossible. Aim: The aim of this study was to evaluate the potential of Glypican-3 (GPC-3) to aid in diagnosis of HCC, especially in patients with low serum alpha-fetoprotein (AFP). Subjects and methods: Serum GPC-3 was assessed by flow-cytometry and serum AFP by enzyme-linked immunosorbent assay (ELISA) in 40 HCC patients with AFP< 400ug\l. (GI), 40 HCC patients with AFP> 400ug\l. (GII) and 20 healthy controls (GIII). Results: GPC-3 was found to be significantly elevated in HCC as compared to healthy subjects (GI 38.2±22. 5, GII 50.2±22.6, and GIII 2.24±1.19), with sensitivities of 85% for GI and 84% for GII and specificities of 95% for GI and 92% for GII. AFP showed respective sensitivities of 50% and 79%, and specificities of 80% and 90%, for HCC diagnosis. The combination of GPC-3 with AFP achieved the highest sensitivity (98.5%) and specificity (97.8%). Conclusion: Serum GPC-3 has a better sensitivity than AFP for the diagnosis of HCC. Combination of two markers appears warranted for greatest accuracy.
Collapse
Affiliation(s)
- Sherif El-Saadany
- Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, University of Tanta, Egypt
- Fakeeh College for Medical Sciences, Jeddah, Saudi Arabia
| | | | | | | | | | | | | | | | | |
Collapse
|
53
|
Harada E, Serada S, Fujimoto M, Takahashi Y, Takahashi T, Hara H, Nakatsuka R, Sugase T, Nishigaki T, Saito Y, Hiramatsu K, Nojima S, Mitsuo R, Ohkawara T, Morii E, Mori M, Doki Y, Kaneda Y, Naka T. Glypican-1 targeted antibody-based therapy induces preclinical antitumor activity against esophageal squamous cell carcinoma. Oncotarget 2018; 8:24741-24752. [PMID: 28445969 PMCID: PMC5421884 DOI: 10.18632/oncotarget.15799] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 02/15/2017] [Indexed: 12/11/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) has a poor prognosis despite the development of multimodal therapy. Expression of glypican-1 (GPC1) has been reported to be elevated in a subset of patients with ESCC and associated with chemoresistance. This study aimed to determine the association of GPC1 with ESCC growth and potential usefulness of the GPC1 targeted therapy by monoclonal antibody (mAb) in ESCC. Expression of GPC1 was higher in ESCC tumor tissues than in adjacent non-tumoral tissues and normal tissues. Knockdown of GPC1 decreased growth of ESCC cells and induced apoptosis via inhibition of EGFR, AKT and p44/42-MAPK signaling pathways in vitro. Anti-GPC1 mAb strongly inhibited tumor growth via antibody-dependent cellular cytotoxicity dependent and independent manner in GPC1-positive ESCC xenograft models. Anti-GPC1 mAb also inhibited tumor growth of GPC1 positive ESCC patients derived tumor xenograft models. Furthermore, anti-GPC1 mAb showed a significant tumor growth inhibition with decreased angiogenesis compared with IgG treated controls in ESCC xenografted mice. Treatment with anti-GPC1 mAb was not toxic in mice. Anti-GPC1 mAb may have a potent anti-tumor effect and represent a novel treatment option for patients with GPC1-positive ESCC.
Collapse
Affiliation(s)
- Emi Harada
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Satoshi Serada
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Minoru Fujimoto
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Yusuke Takahashi
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Tsuyoshi Takahashi
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Hisashi Hara
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Rie Nakatsuka
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Takahito Sugase
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Takahiko Nishigaki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Yurina Saito
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Kosuke Hiramatsu
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Satoshi Nojima
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Risa Mitsuo
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Tomoharu Ohkawara
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| | - Eiichi Morii
- Department of Pathology, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Masaki Mori
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Yasufumi Kaneda
- Division of Gene Therapy Science, Osaka University Graduate School of Medicine, Osaka, 565-0871, Japan
| | - Tetsuji Naka
- Laboratory of Immune Signal, National Institute of Biomedical Innovation, Health and Nutrition, Osaka, 567-0085, Japan
| |
Collapse
|
54
|
Carrasquillo JA, O'Donoghue JA, Beylergil V, Ruan S, Pandit-Taskar N, Larson SM, Smith-Jones PM, Lyashchenko SK, Ohishi N, Ohtomo T, Abou-Alfa GK. I-124 codrituzumab imaging and biodistribution in patients with hepatocellular carcinoma. EJNMMI Res 2018; 8:20. [PMID: 29508107 PMCID: PMC5838028 DOI: 10.1186/s13550-018-0374-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/22/2018] [Indexed: 01/03/2023] Open
Abstract
Background I-124 codrituzumab (aka GC33), an antibody directed at Glypican 3, was evaluated in patients with hepatocellular carcinoma (HCC). Fourteen patients with HCC underwent baseline imaging with I-124 codrituzumab (~ 185 MBq, 10 mg). Seven of these patients undergoing sorafenib/immunotherapy with 2.5 or 5 mg/kg of cold codrituzumab had repeat imaging, with co-infusion of I-124 codrituzumab, as part of their immunotherapy treatment. Three patients who progressed while on sorafenib/immunotherapy were re-imaged after a 4-week washout period to assess for the presence of antigen. Serial positron emission tomography (PET) imaging and pharmacokinetics were performed following I-124 codrituzumab. An ELISA assay was used to determine “cold” codrituzumab serum pharmacokinetics and compare it to that of I-124 codrituzumab. Correlation of imaging results was performed with IHC. Short-term safety assessment was also evaluated. Results Thirteen patients had tumor localization on baseline I-124 codrituzumab; heterogeneity in tumor uptake was noted. In three patients undergoing repeat imaging while on immunotherapy/sorafenib, evidence of decreased I-124 codrituzumab uptake was noted. All three patients who underwent imaging after progression while on immunotherapy continued to have I-124 codrituzumab tumor uptake. Pharmacokinetics of I-124 codrituzumab was similar to that of other intact IgG. No significant adverse events were observed related to the I-124 codrituzumab. Conclusions I-124 codrituzumab detected tumor localization in most patients with HCC. Pharmacokinetics was similar to that of other intact iodinated humanized IgG. No visible cross-reactivity with normal organs was observed. Electronic supplementary material The online version of this article (10.1186/s13550-018-0374-8) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jorge A Carrasquillo
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
| | - Joseph A O'Donoghue
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Volkan Beylergil
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Shutian Ruan
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Neeta Pandit-Taskar
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Steven M Larson
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Peter M Smith-Jones
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.,Department of Psychiatry and Behavioral Science, Stony Brook University Hospital, 101 Nicolls Road, Stony Brook, NY, 11794, USA.,Department of Radiology, Stony Brook University Hospital, 101 Nicolls Road, Stony Brook, NY, 11794, USA
| | - Serge K Lyashchenko
- Department of Radiology, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Norihisa Ohishi
- Chugai Pharmaceutical Co., Ltd., 1-1 Nihonbashi-Muromachi 2-Chome Chuo-ku, Tokyo, 103-8324, Japan
| | - Toshihiko Ohtomo
- Chugai Pharmaceutical Co., Ltd., 1-1 Nihonbashi-Muromachi 2-Chome Chuo-ku, Tokyo, 103-8324, Japan
| | - Ghassan K Abou-Alfa
- Department of Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| |
Collapse
|
55
|
Han S, Ma X, Zhao Y, Zhao H, Batista A, Zhou S, Zhou X, Yang Y, Wang T, Bi J, Xia Z, Bai Z, Garkavtsev I, Zhang Z. Identification of Glypican-3 as a potential metastasis suppressor gene in gastric cancer. Oncotarget 2018; 7:44406-44416. [PMID: 27259271 PMCID: PMC5190106 DOI: 10.18632/oncotarget.9763] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Accepted: 05/23/2016] [Indexed: 01/07/2023] Open
Abstract
Gastric cancer is a prevalent tumor that is usually detected at an advanced metastatic stage. Currently, standard therapies are mostly ineffective. Here, we report that Glypican-3 (GPC3) is absent in invasive tumors and metastatic lymph nodes, in particular in aggressive and highly disseminated signet ring cell carcinomas. We demonstrate that loss of GPC3 correlates with poor overall survival in patients. Moreover, we show that absence of GPC3 causes up-regulation of MAPK/FoxM1 signaling and that blockade of this pathway alters cellular invasion. An inverse correlation between GPC3 and FoxM1 is also shown in patient samples. These data identify GPC3 as a potential metastasis suppressor gene and suggest its value as a prognostic marker in gastric cancer. Development of therapies targeting signaling downstream of GPC3 are warranted.
Collapse
Affiliation(s)
- Shiwei Han
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xuemei Ma
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yanxia Zhao
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongying Zhao
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Ana Batista
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Sheng Zhou
- Institute of Pathology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaona Zhou
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yao Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Tingting Wang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Jingtao Bi
- Department of General Surgery, Beijing Jishuitan Hospital, The Fourth Medical College of Peking University, Beijing, China
| | - Zheng Xia
- Department of Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zhigang Bai
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Igor Garkavtsev
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Zhongtao Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cancer Invasion and Metastasis Research & National Clinical Research Center for Digestive Diseases, Beijing, China
| |
Collapse
|
56
|
Kaseb AO, Hassan M, Lacin S, Abdel-Wahab R, Amin HM, Shalaby A, Wolff RA, Yao J, Rashid A, Vennapusa B, Feng J, Ohtomo T. Evaluating clinical and prognostic implications of Glypican-3 in hepatocellular carcinoma. Oncotarget 2018; 7:69916-69926. [PMID: 27655712 PMCID: PMC5342524 DOI: 10.18632/oncotarget.12066] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/05/2016] [Indexed: 12/21/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most deadly cancers worldwide. In patients with HCC, histopathogical differentiation is an important indicator of prognosis; however, because determination of HCC differentiation is difficult, the recently described immunohistochemical (IHC) marker glypican3 (GPC3) might assist in HCC prognostication.The goal of our study was to investigate GPC3's IHC staining pattern and define the relationship between its expression and patients' clinicopathologic features and overall survival. We retrieved clinical parameters from 101 pathologically diagnosed HCC patients' medical records and classified these patients into 4 clinical score categories (0–3) based on increasing GPC3 staining intensity and the percentage of stained tumor cells in their resection and biopsy specimens. Histopathological samples were well, moderately, and poorly differentiated in 33, 22, and 12 patients, respectively, and the GPC3 expression rate was 63%, 86%, and 92%,respectively. The median overall survival was 49.9 months (confidence interval (CI): 35.3–64.6 months) for clinical scores 0–1 and 30.7 months (CI: 19.4–41.9 months) for clinical scores 2–3. This difference was not statistically significant (P = .06) but showed a strong trend. In conclusion, a greater GPC3 expression is associated with a worse HCC prognosis and may be a promising prognostic marker.
Collapse
Affiliation(s)
- Ahmed Omar Kaseb
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Manal Hassan
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Sahin Lacin
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Medical Oncology, Hacettepe University, Medical Faculty, Ankara, Turkey
| | - Reham Abdel-Wahab
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Clinical Oncology, Assiut University Hospital, Assiut, Egypt
| | - Hesham M Amin
- Division of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ahmed Shalaby
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Robert A Wolff
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - James Yao
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Asif Rashid
- Division of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | | | - Janine Feng
- Ventana Medical Systems, Inc., Tucson, Arizona, USA
| | | |
Collapse
|
57
|
Cheng W, Huang PC, Chao HM, Jeng YM, Hsu HC, Pan HW, Hwu WL, Lee YM. Glypican-3 induces oncogenicity by preventing IGF-1R degradation, a process that can be blocked by Grb10. Oncotarget 2017; 8:80429-80442. [PMID: 29113314 PMCID: PMC5655209 DOI: 10.18632/oncotarget.19035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/18/2017] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver malignancy and is a major cause of cancer-related death worldwide. Previously, we demonstrated that glypican-3 (GPC3) is highly expressed in HCC, and that GPC3 induces oncogenicity and promotes the growth of cancer cells through IGF-1 receptor (IGF-1R). In the present study, we investigated the mechanisms of GPC3-mediated enhancement of IGF-1R signaling. We demonstrated that GPC3 decreased IGF-1-induced IGF-1R ubiquitination and degradation and increased c-Myc protein levels. GPC3 bound to Grb10, a mediator of ligand-induced receptor ubiquitination, and the overexpression of Grb10 blocked GPC3-enhanced IGF-1-induced ERK phosphorylation. GPC3 promoted the growth of NIH3T3 and PLC-PRF-5 cells in serum-free medium but did not promote the growth of IGF-1R negative R- cells. Grb10 overexpression decreased GPC3-promoted cell growth. Therefore, the present study elucidates the mechanisms of GPC3-induced oncogenicity, which may highlight new strategies for the treatment of HCC.
Collapse
Affiliation(s)
- Wei Cheng
- Department of Pathology, Kee-Lung Hospital, Ministry of Health and Welfare, Kee-Lung, Taiwan.,Ching Kuo Institute of Management and Health, Kee-Lung, Taiwan.,National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Po-Chun Huang
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan.,Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan
| | - Hsiao-Mei Chao
- Department of Pathology, Wang Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yung-Ming Jeng
- Graduate Institute of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hey-Chi Hsu
- Graduate Institute of Pathology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hung-Wei Pan
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Wuh-Liang Hwu
- Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-May Lee
- Institute of Biochemical Sciences, National Taiwan University, Taipei, Taiwan.,Institute of Biological Chemistry, Academia Sinica, Taipei, Taiwan.,Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| |
Collapse
|
58
|
Epigenetic Regulation of the Biosynthesis & Enzymatic Modification of Heparan Sulfate Proteoglycans: Implications for Tumorigenesis and Cancer Biomarkers. Int J Mol Sci 2017; 18:ijms18071361. [PMID: 28672878 PMCID: PMC5535854 DOI: 10.3390/ijms18071361] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 06/05/2017] [Accepted: 06/22/2017] [Indexed: 02/06/2023] Open
Abstract
Emerging evidence suggests that the enzymes in the biosynthetic pathway for the synthesis of heparan sulfate moieties of heparan sulfate proteoglycans (HSPGs) are epigenetically regulated at many levels. As the exact composition of the heparan sulfate portion of the resulting HSPG molecules is critical to the broad spectrum of biological processes involved in oncogenesis, the epigenetic regulation of heparan sulfate biosynthesis has far-reaching effects on many cellular activities related to cancer progression. Given the current focus on developing new anti-cancer therapeutics focused on epigenetic targets, it is important to understand the effects that these emerging therapeutics may have on the synthesis of HSPGs as alterations in HSPG composition may have profound and unanticipated effects. As an introduction, this review will briefly summarize the variety of important roles which HSPGs play in a wide-spectrum of cancer-related cellular and physiological functions and then describe the biosynthesis of the heparan sulfate chains of HSPGs, including how alterations observed in cancer cells serve as potential biomarkers. This review will then focus on detailing the multiple levels of epigenetic regulation of the enzymes in the heparan sulfate synthesis pathway with a particular focus on regulation by miRNA and effects of epigenetic therapies on HSPGs. We will also explore the use of lectins to detect differences in heparan sulfate composition and preview their potential diagnostic and prognostic use in the clinic.
Collapse
|
59
|
Lu H, Niu F, Liu F, Gao J, Sun Y, Zhao X. Elevated glypican-1 expression is associated with an unfavorable prognosis in pancreatic ductal adenocarcinoma. Cancer Med 2017; 6:1181-1191. [PMID: 28440066 PMCID: PMC5463070 DOI: 10.1002/cam4.1064] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 02/28/2017] [Accepted: 03/05/2017] [Indexed: 12/15/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the most lethal cancer in humans, with a 5-year survival rate of <5%. Recently, glypican-1 (GPC1)-expressing circulating exosomes were found to be a promising diagnostic tool for PDAC. However, the aberrant expression of GPC1 has not been systematically evaluated in large-scale clinical samples of PDAC. Here, we performed a comprehensive analysis of GPC1 mRNA and protein expression features. Included in this study were 178 PDAC patients from the cancer genome atlas (TCGA) and 186 subjects whose tissues were used in immunohistochemical staining assays. We demonstrated that GPC1 mRNA was silenced in normal pancreata; however, it was re-expressed in PDAC tissues probably because of the promoter hypomethylation. The GPC1 protein was barely expressed in the normal and adjacent noncancerous pancreata. In tumor tissues, 59.7% (111/186) of the detected samples showed positive expression. Notably, GPC1 was elevated in 63.6% (34/55) of early stage cases. High levels of GPC1 were associated with poorer differentiation and larger tumor diameters. Kaplan-Meier analysis showed a significant difference in overall survival between the groups categorized by GPC1 expression (P = 0.0028). Multivariate analyses indicated that GPC1 was a significant risk factor for poor overall survival with a 1.82-fold increase in the hazard ratio (P = 0.0022). In conclusion, during pancreatic tumorigenesis, GPC1 was ectopically expressed and served as an independent poor prognostic factor. Our findings highlighted the alluring prospect of GPC1 as an early diagnostic and prognostic marker as well as a therapeutic target for PDAC.
Collapse
Affiliation(s)
- Haizhen Lu
- Department of PathologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Science & Peking Union Medical CollegeBeijing100021China
| | - Fangfei Niu
- State Key Laboratory of Molecular OncologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100021China
| | - Fang Liu
- State Key Laboratory of Molecular OncologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100021China
| | - Jiajia Gao
- State Key Laboratory of Molecular OncologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100021China
| | - Yulin Sun
- State Key Laboratory of Molecular OncologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100021China
| | - Xiaohang Zhao
- State Key Laboratory of Molecular OncologyNational Cancer Center/Cancer HospitalChinese Academy of Medical Sciences & Peking Union Medical CollegeBeijing100021China
| |
Collapse
|
60
|
Abou-Alfa GK, Yen CJ, Hsu CH, O'Donoghue J, Beylergil V, Ruan S, Pandit-Taskar N, Gansukh B, Lyashchenko SK, Ma J, Wan P, Shao YY, Lin ZZ, Frenette C, O'Neil B, Schwartz L, Smith-Jones PM, Ohtomo T, Tanaka T, Morikawa H, Maki Y, Ohishi N, Chen YC, Agajanov T, Boisserie F, Di Laurenzio L, Lee R, Larson SM, Cheng AL, Carrasquilo JA. Phase Ib study of codrituzumab in combination with sorafenib in patients with non-curable advanced hepatocellular carcinoma (HCC). Cancer Chemother Pharmacol 2017; 79:421-429. [PMID: 28120036 PMCID: PMC5548107 DOI: 10.1007/s00280-017-3241-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 01/07/2017] [Indexed: 11/26/2022]
Abstract
PURPOSE Codrituzumab, a humanized antibody against glypican-3, is highly expressed in HCC. A phase I study evaluated the combination with sorafenib in HCC. PATIENTS AND METHODS In a 3 + 3 design, codrituzumab was given intravenously in various doses with sorafenib 400 mg twice daily to patients with advanced HCC, age ≥18, ECOG 0-1, Child-Pugh A and B7, adequate organ functions, and no prior systemic therapy, with tumor assessment by RECIST 1.0 and safety by CTCAE 3.0. PK and pre, during, and post-therapy 124I radiolabeled codrituzumab PET scan imaging were performed. RESULTS 41 patients were enrolled: 2.5 mg/kg weekly (qw) (12), 5 mg/kg qw (12), 10 mg/kg qw (3), 1600 mg every 2 weeks (q2w) (6), and 1600 mg qw (7). Two drug limiting toxicities occurred: grade 3 hyponatremia at 5 mg/kg and grade 3 hyponatremia and hyperglycemia at 1600 mg q2w. Adverse events occurred in 80% of patients, including at least one ≥grade 3: ten (25%) increased AST, three (7.5%) increased ALT, and ten (25%) increased lipase. There were no responses and nine (25.7%) had stable disease. PK C max and AUCt of codrituzumab and sorafenib were comparable to single-agent data. Thirteen out of 14 patients showed 124I radiolabeled codrituzumab uptake in tumor. In all three patients who underwent a post-progression PET, glypican-3 remained expressed. CONCLUSION Codrituzumab plus sorafenib were tolerated at 1600 mg q2w and 400 mg bid, respectively, with no responses. Codrituzumab exerts selective distribution to HCC cells, and GPC3 does not show any down-regulation post-progression (NCT00976170).
Collapse
Affiliation(s)
- Ghassan K Abou-Alfa
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
- Weill Cornell Medical College, New York, NY, USA.
| | - Chia-Jui Yen
- National Cheng-Kung University Hospital, Tainan, Taiwan, Republic of China
| | - Chih-Hung Hsu
- National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | | | - Volkan Beylergil
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Shutian Ruan
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | | | | | | | - Jennifer Ma
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Peter Wan
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Yu-Yun Shao
- National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Zhong-Zhe Lin
- National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | | | - Bert O'Neil
- Indiana University Simon Cancer Center, Indianapolis, IN, USA
| | | | | | | | | | | | - Yuko Maki
- Chugai Pharmaceutical Co. Ltd., Tokyo, Japan
| | | | - Ya-Chi Chen
- Translational and Clinical Research Center, Hoffmann-La Roche Inc., New York, USA
| | - Tamara Agajanov
- Translational and Clinical Research Center, Hoffmann-La Roche Inc., New York, USA
| | - Frederic Boisserie
- Translational and Clinical Research Center, Hoffmann-La Roche Inc., New York, USA
| | - Laura Di Laurenzio
- Translational and Clinical Research Center, Hoffmann-La Roche Inc., New York, USA
| | - Ray Lee
- Translational and Clinical Research Center, Hoffmann-La Roche Inc., New York, USA
| | - Steven M Larson
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
- Weill Cornell Medical College, New York, NY, USA
| | - Ann-Lii Cheng
- National Taiwan University Hospital, Taipei, Taiwan, Republic of China
| | - Jorge A Carrasquilo
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
- Weill Cornell Medical College, New York, NY, USA
| |
Collapse
|
61
|
Abstract
In the United States trauma is the leading cause of mortality among those under the age of 45, claiming approximately 192,000 lives each year. Significant personal disability, lost productivity, and long-term healthcare needs are common and contribute 580 billion dollars in economic impact each year. Improving resuscitation strategies and the early acute care of trauma patients has the potential to reduce the pathological sequelae of combined exuberant inflammation and immune suppression that can co-exist, or occur temporally, and adversely affect outcomes. The endothelial and epithelial glycocalyx has emerged as an important participant in both inflammation and immunomodulation. Constituents of the glycocalyx have been used as biomarkers of injury severity and have the potential to be target(s) for therapeutic interventions aimed at immune modulation. In this review, we provide a contemporary understanding of the physiologic structure and function of the glycocalyx and its role in traumatic injury with a particular emphasis on lung injury.
Collapse
|
62
|
Extracellular Matrix, a Hard Player in Angiogenesis. Int J Mol Sci 2016; 17:ijms17111822. [PMID: 27809279 PMCID: PMC5133823 DOI: 10.3390/ijms17111822] [Citation(s) in RCA: 137] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/30/2016] [Accepted: 10/21/2016] [Indexed: 12/11/2022] Open
Abstract
The extracellular matrix (ECM) is a complex network of proteins, glycoproteins, proteoglycans, and polysaccharides. Through multiple interactions with each other and the cell surface receptors, not only the ECM determines the physical and mechanical properties of the tissues, but also profoundly influences cell behavior and many physiological and pathological processes. One of the functions that have been extensively explored is its impingement on angiogenesis. The strong impact of the ECM in this context is both direct and indirect by virtue of its ability to interact and/or store several growth factors and cytokines. The aim of this review is to provide some examples of the complex molecular mechanisms that are elicited by these molecules in promoting or weakening the angiogenic processes. The scenario is intricate, since matrix remodeling often generates fragments displaying opposite effects compared to those exerted by the whole molecules. Thus, the balance will tilt towards angiogenesis or angiostasis depending on the relative expression of pro- or anti-angiogenetic molecules/fragments composing the matrix of a given tissue. One of the vital aspects of this field of research is that, for its endogenous nature, the ECM can be viewed as a reservoir to draw from for the development of new more efficacious therapies to treat angiogenesis-dependent pathologies.
Collapse
|
63
|
Li M, Zhang W, Wang B, Gao Y, Song Z, Zheng QC. Ligand-based targeted therapy: a novel strategy for hepatocellular carcinoma. Int J Nanomedicine 2016; 11:5645-5669. [PMID: 27920520 PMCID: PMC5127222 DOI: 10.2147/ijn.s115727] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver cancer with high morbidity and mortality worldwide. Chemotherapy is recommended to patients with intermediate or advanced stage cancer. However, the conventional chemotherapy yields low desired response rates due to multidrug resistance, fast clearance rate, nonspecific delivery, severe side effects, low drug concentration in cancer cells, and so on. Nanoparticle-mediated targeted drug delivery system can surmount the aforementioned obstacles through enhanced permeability and retention effect and active targeting as a novel approach of therapeutics for HCC in recent years. The active targeting is triggered by ligands on the delivery system, which recognize with and internalize into hepatoma cells with high specificity and efficiency. This review focuses on the latest targeted delivery systems for HCC and summarizes the ligands that can enhance the capacity of active targeting, to provide some insight into future research in nanomedicine for HCC.
Collapse
Affiliation(s)
- Min Li
- Department of Hepatobiliary Surgery, Union Hospital
| | - Weiyue Zhang
- The First Clinic Institute, Tongji Medical College, Huazhong University of Science and Technology
| | - Birong Wang
- Department of Breast and Thyroid Surgery, Puai Hospital, Wuhan, The People’s Republic of China
| | - Yang Gao
- Department of Hepatobiliary Surgery, Union Hospital
| | - Zifang Song
- Department of Hepatobiliary Surgery, Union Hospital
| | | |
Collapse
|
64
|
Melleby AO, Strand ME, Romaine A, Herum KM, Skrbic B, Dahl CP, Sjaastad I, Fiane AE, Filmus J, Christensen G, Lunde IG. The Heparan Sulfate Proteoglycan Glypican-6 Is Upregulated in the Failing Heart, and Regulates Cardiomyocyte Growth through ERK1/2 Signaling. PLoS One 2016; 11:e0165079. [PMID: 27768722 PMCID: PMC5074531 DOI: 10.1371/journal.pone.0165079] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/05/2016] [Indexed: 11/18/2022] Open
Abstract
Pressure overload is a frequent cause of heart failure. Heart failure affects millions of patients worldwide and is a major cause of morbidity and mortality. Cell surface proteoglycans are emerging as molecular players in cardiac remodeling, and increased knowledge about their regulation and function is needed for improved understanding of cardiac pathogenesis. Here we investigated glypicans (GPC1-6), a family of evolutionary conserved heparan sulfate proteoglycans anchored to the extracellular leaflet of the cell membrane, in experimental and clinical heart failure, and explored the function of glypican-6 in cardiac cells in vitro. In mice subjected to pressure overload by aortic banding (AB), we observed elevated glypican-6 levels during hypertrophic remodeling and dilated, end-stage heart failure. Consistently, glypican-6 mRNA was elevated in left ventricular myocardium from explanted hearts of patients with end-stage, dilated heart failure with reduced ejection fraction. Glypican-6 levels correlated negatively with left ventricular ejection fraction in patients, and positively with lung weight after AB in mice. Glypican-6 mRNA was expressed in both cardiac fibroblasts and cardiomyocytes, and the corresponding protein displayed different sizes in the two cell types due to tissue-specific glycanation. Importantly, adenoviral overexpression of glypican-6 in cultured cardiomyocytes increased protein synthesis and induced mRNA levels of the pro-hypertrophic signature gene ACTA1 and the hypertrophy and heart failure signature genes encoding natriuretic peptides, NPPA and NPPB. Overexpression of GPC6 induced ERK1/2 phosphorylation, and co-treatment with the ERK inhibitor U0126 attenuated the GPC6-induced increase in NPPA, NPPB and protein synthesis. In conclusion, our data suggests that glypican-6 plays a role in clinical and experimental heart failure progression by regulating cardiomyocyte growth through ERK signaling.
Collapse
Affiliation(s)
- Arne O. Melleby
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
- * E-mail:
| | - Mari E. Strand
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Andreas Romaine
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Kate M. Herum
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Biljana Skrbic
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Christen P. Dahl
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Research Institute of Internal Medicine, Oslo University Hospital, Oslo, Norway
| | - Ivar Sjaastad
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
- Division of Molecular and Cellular Biology, Sunnybrook Research Institute and Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Arnt E. Fiane
- Department of Cardiothoracic Surgery, Oslo University Hospital, Oslo, Norway
| | - Jorge Filmus
- Division of Molecular and Cellular Biology, Sunnybrook Research Institute and Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Geir Christensen
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| | - Ida G. Lunde
- Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway
- Center for Heart Failure Research, University of Oslo, Oslo, Norway
| |
Collapse
|
65
|
Ly K, Essalmani R, Desjardins R, Seidah NG, Day R. An Unbiased Mass Spectrometry Approach Identifies Glypican-3 as an Interactor of Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) and Low Density Lipoprotein Receptor (LDLR) in Hepatocellular Carcinoma Cells. J Biol Chem 2016; 291:24676-24687. [PMID: 27758865 DOI: 10.1074/jbc.m116.746883] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 10/07/2016] [Indexed: 12/24/2022] Open
Abstract
The mechanism of LDL receptor (LDLR) degradation mediated by the proprotein convertase subtilisin/kexin type 9 (PCSK9) has been extensively studied; however, many steps within this process remain unclear and still require characterization. Recent studies have shown that PCSK9 lacking its Cys/His-rich domain can still promote LDLR internalization, but the complex does not reach the lysosome suggesting the presence of an additional interaction partner(s). In this study we carried out an unbiased screening approach to identify PCSK9-interacting proteins in the HepG2 cells' secretome using co-immunoprecipitation combined with mass spectrometry analyses. Several interacting proteins were identified, including glypican-3 (GPC3), phospholipid transfer protein, matrilin-3, tissue factor pathway inhibitor, fibrinogen-like 1, and plasminogen activator inhibitor-1. We then validated these interactions by co-immunoprecipitation and Western blotting. Furthermore, functional validation was examined by silencing each candidate protein in HepG2 cells using short hairpin RNAs to determine their effect on LDL uptake and LDLR levels. Only GPC3 and phospholipid transfer protein silencing in HepG2 cells significantly increased LDL uptake in these cells and displayed higher total LDLR protein levels compared with control cells. Moreover, our study provides the first evidence that GPC3 can modulate the PCSK9 extracellular activity as a competitive binding partner to the LDLR in HepG2 cells.
Collapse
Affiliation(s)
- Kévin Ly
- From the Institut de Pharmacologie de Sherbrooke, Department of Surgery/Urology Division, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec J1H5N4 and
| | - Rachid Essalmani
- the Institut de Recherches Cliniques de Montréal, Affiliated with Université de Montréal, Montréal, Quebec H2W 1R7, Canada
| | - Roxane Desjardins
- From the Institut de Pharmacologie de Sherbrooke, Department of Surgery/Urology Division, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec J1H5N4 and
| | - Nabil G Seidah
- the Institut de Recherches Cliniques de Montréal, Affiliated with Université de Montréal, Montréal, Quebec H2W 1R7, Canada
| | - Robert Day
- From the Institut de Pharmacologie de Sherbrooke, Department of Surgery/Urology Division, Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Quebec J1H5N4 and.
| |
Collapse
|
66
|
Zhang L, Yang Z, Le Trinh T, Teng IT, Wang S, Bradley KM, Hoshika S, Wu Q, Cansiz S, Rowold DJ, McLendon C, Kim MS, Wu Y, Cui C, Liu Y, Hou W, Stewart K, Wan S, Liu C, Benner SA, Tan W. Aptamers against Cells Overexpressing Glypican 3 from Expanded Genetic Systems Combined with Cell Engineering and Laboratory Evolution. Angew Chem Int Ed Engl 2016; 55:12372-5. [PMID: 27601357 DOI: 10.1002/anie.201605058] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 08/01/2016] [Indexed: 01/11/2023]
Abstract
Laboratory in vitro evolution (LIVE) might deliver DNA aptamers that bind proteins expressed on the surface of cells. In this work, we used cell engineering to place glypican 3 (GPC3), a possible marker for liver cancer theranostics, on the surface of a liver cell line. Libraries were then built from a six-letter genetic alphabet containing the standard nucleobases and two added nucleobases (2-amino-8H-imidazo[1,2-a][1,3,5]triazin-4-one and 6-amino-5-nitropyridin-2-one), Watson-Crick complements from an artificially expanded genetic information system (AEGIS). With counterselection against non-engineered cells, eight AEGIS-containing aptamers were recovered. Five bound selectively to GPC3-overexpressing cells. This selection-counterselection scheme had acceptable statistics, notwithstanding the possibility that cells engineered to overexpress GPC3 might also express different off-target proteins. This is the first example of such a combination.
Collapse
Affiliation(s)
- Liqin Zhang
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA.,Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | - Zunyi Yang
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Thu Le Trinh
- Department of Pathology, Immunology, and Laboratory Medicine, Gainesville, FL, 32611, USA
| | - I-Ting Teng
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Sai Wang
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Kevin M Bradley
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Shuichi Hoshika
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Qunfeng Wu
- Department of Pathology, Immunology, and Laboratory Medicine, Gainesville, FL, 32611, USA
| | - Sena Cansiz
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Diane J Rowold
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Christopher McLendon
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Myong-Sang Kim
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA
| | - Yuan Wu
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA.,Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China
| | - Cheng Cui
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Yuan Liu
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Weijia Hou
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Kimberly Stewart
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Shuo Wan
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA
| | - Chen Liu
- Department of Pathology, Immunology, and Laboratory Medicine, Gainesville, FL, 32611, USA.
| | - Steven A Benner
- Foundation for Applied Molecular Evolution, Firebird Biomolecular Sciences LLC, 13709 Progress Boulevard, Alachua, FL, 32615, USA.
| | - Weihong Tan
- Departments of Chemistry, Physiology and Functional Genomics, Center for Research at the Bio/Nano Interface, UF Health Cancer Center, UF Genetics Institute and McKnight Brain Institute, University of Florida, Gainesville, FL, 32611, USA. .,Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University, Changsha, 410082, China.
| |
Collapse
|
67
|
Li W, Guo L, Rathi P, Marinova E, Gao X, Wu MF, Liu H, Dotti G, Gottschalk S, Metelitsa LS, Heczey A. Redirecting T Cells to Glypican-3 with 4-1BB Zeta Chimeric Antigen Receptors Results in Th1 Polarization and Potent Antitumor Activity. Hum Gene Ther 2016; 28:437-448. [PMID: 27530312 DOI: 10.1089/hum.2016.025] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
T cells engineered to express CD19-specific chimeric antigen receptors (CARs) have shown breakthrough clinical successes in patients with B-cell lymphoid malignancies. However, similar therapeutic efficacy of CAR T cells in solid tumors is yet to be achieved. In this study we systematically evaluated a series of CAR constructs targeting glypican-3 (GPC3), which is selectively expressed on several solid tumors. We compared GPC3-specific CARs that encoded CD3ζ (Gz) alone or with costimulatory domains derived from CD28 (G28z), 4-1BB (GBBz), or CD28 and 4-1BB (G28BBz). All GPC3-CARs rendered T cells highly cytotoxic to GPC3-positive hepatocellular carcinoma, hepatoblastoma, and malignant rhabdoid tumor cell lines in vitro. GBBz induced the preferential production of Th1 cytokines (interferon γ/granulocyte macrophage colony-stimulating factor) while G28z preferentially induced Th2 cytokines (interleukin-4/interleukin-10). Inclusion of 4-1BB in G28BBz could only partially ameliorate the Th2-polarizing effect of CD28. 4-1BB induced superior expansion of CAR T cells in vitro and in vivo. T cells expressing GPC3-CARs incorporating CD28, 4-1BB, or both induced sustained tumor regressions in two xenogeneic tumor models. Thus, GBBz CAR endows T cells with superior proliferative potential, potent antitumor activity, and a Th1-biased cytokine profile, justifying further clinical development of GBBz CAR for immunotherapy of GPC3-positive solid tumors.
Collapse
Affiliation(s)
- Wenpeng Li
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas
| | - Linjie Guo
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas
| | - Purva Rathi
- 4 Biostatistics Shared Resource, Dan L Duncan Comprehensive Cancer Center, Houston, Texas
| | - Ekaterina Marinova
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas
| | - Xiuhua Gao
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas
| | - Meng-Feng Wu
- 4 Biostatistics Shared Resource, Dan L Duncan Comprehensive Cancer Center, Houston, Texas
| | - Hao Liu
- 4 Biostatistics Shared Resource, Dan L Duncan Comprehensive Cancer Center, Houston, Texas
| | - Gianpietro Dotti
- 5 Department of Microbiology and Immunology, University of North Carolina , Chapel Hill, North Carolina
| | - Stephen Gottschalk
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas.,6 Department of Pathology and Immunology; Baylor College of Medicine, Houston, Texas
| | - Leonid S Metelitsa
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas.,6 Department of Pathology and Immunology; Baylor College of Medicine, Houston, Texas
| | - Andras Heczey
- 1 Texas Children's Cancer Center, Texas Children's Hospital, Houston, Texas.,2 Center for Cell and Gene Therapy, Texas Children's Hospital, Houston Methodist Hospital, and Baylor College of Medicine, Houston, Texas.,3 Department of Pediatrics, Houston, Texas.,4 Biostatistics Shared Resource, Dan L Duncan Comprehensive Cancer Center, Houston, Texas
| |
Collapse
|
68
|
Wu B, Qiao Q, Han X, Jing H, Zhang H, Liang H, Cheng W. Targeted nanobubbles in low-frequency ultrasound-mediated gene transfection and growth inhibition of hepatocellular carcinoma cells. Tumour Biol 2016; 37:12113-12121. [PMID: 27216880 DOI: 10.1007/s13277-016-5082-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Accepted: 05/15/2016] [Indexed: 01/06/2023] Open
Abstract
The use of SonoVue combined with ultrasound exposure increases the transfection efficiency of short interfering RNA (siRNA). The objective of this study was to prepare targeted nanobubbles (TNB) conjugated with NET-1 siRNA and an antibody GPC3 to direct nanobubbles to hepatocellular carcinoma cells. SMMC-7721 human hepatocellular carcinoma cells were treated with six different groups. The transfection efficiency and cellular apoptosis were measured by flow cytometry. The protein and messenger RNA (mRNA) expression were measured by Western blot and quantitative real-time PCR, respectively. The migration and invasion potential of the cells were determined by Transwell analysis. The results show that US-guided siRNA-TNB transfection effectively enhanced gene silencing. In summary, siRNA-TNB may be an effective delivery vector to mediate highly effective RNA interference in tumor treatment.
Collapse
Affiliation(s)
- Bolin Wu
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang Province, China
| | - Qiang Qiao
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang Province, China
| | - Xue Han
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang Province, China
| | - Hui Jing
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang Province, China
| | - Hao Zhang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Hongjian Liang
- School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang, China
| | - Wen Cheng
- Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin Medical University Cancer Hospital, Harbin, 150081, Heilongjiang Province, China.
| |
Collapse
|
69
|
Truong Q, Justiniano IO, Nocon AL, Soon JT, Wissmueller S, Campbell DH, Walsh BJ. Glypican-1 as a Biomarker for Prostate Cancer: Isolation and Characterization. J Cancer 2016; 7:1002-9. [PMID: 27313791 PMCID: PMC4910593 DOI: 10.7150/jca.14645] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 03/22/2016] [Indexed: 01/21/2023] Open
Abstract
Prostate cancer is the most frequently diagnosed male visceral cancer and the second leading cause of cancer death in the United States. Standard tests such as prostate-specific antigen (PSA) measurement have poor specificity (33%) resulting in a high number of false positive reports. Consequently there is a need for new biomarkers to address this problem. The MIL-38 antibody was first described nearly thirty years ago, however, until now, the identification of the target antigen remained elusive. By a series of molecular techniques and mass spectrometry, the MIL-38 antigen was identified to be the highly glycosylated proteoglycan Glypican-1 (GPC-1). This protein is present in two forms; a membrane bound core protein of 55-60 kDa and secreted soluble forms of 40 kDa and 52 kDa. GPC-1 identification was confirmed by immuno-precipitation, western blots and ELISA. An ELISA platform is currently being developed to assess the levels of GPC-1 in normal, benign prostatic hyperplasia (BPH) and prostate cancer patients to determine whether secreted GPC-1 may represent a clinically relevant biomarker for prostate cancer diagnosis.
Collapse
Affiliation(s)
- Quach Truong
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Irene O Justiniano
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Aline L Nocon
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Julie T Soon
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Sandra Wissmueller
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Douglas H Campbell
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| | - Bradley J Walsh
- Minomic International Ltd, Suite 2, Ground Floor, 75 Talavera Rd, Macquarie Park, NSW 2113, Australia
| |
Collapse
|
70
|
Al-Sharaky DR, Younes SF. Sensitivity and Specificity of Galectin-3 and Glypican-3 in Follicular-Patterned and Other Thyroid Neoplasms. J Clin Diagn Res 2016; 10:EC06-10. [PMID: 27134876 DOI: 10.7860/jcdr/2016/18375.7430] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 01/27/2016] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Diagnosing follicular-patterned thyroid neoplasm can be quiet challenging in some cases, where an immunohistochemical profiling becomes mandatory. Galectin-3 may be a helpful tool for classical PTC diagnosis, but it cannot be considered as a diagnostic marker of malignancy. Glypican-3, in contrast, is not thoroughly studied in thyroid neoplasms. AIM Determine the sensitivity and specificity of galectin-3 and glypican-3 in diagnosing thyroid carcinoma and follicular-patterned thyroid carcinoma. MATERIALS AND METHODS A retrospective study was conducted on archival blocks diagnosed from pathology department between 2010 and 2012 including 17 cases of follicular adenoma, 16 cases of Classic Papillary Thyroid Carcinoma (PTC), 6 cases of Follicular Variant of Papillary Thyroid Carcinoma (FVPTC), 3 cases of follicular carcinoma, 5 cases of medullary carcinoma and 1 case of Hürthle cell carcinoma. The nearby non neoplastic (normal) thyroid follicles present in both adenoma and carcinoma cases were also evaluated. STUDY DESIGN Evaluation of both galectin-3 and glypican-3 expression using standard immunohistochemical techniques. STATISTICAL ANALYSIS USED Descriptive analysis of the variables and statistical significances were calculated by non-parametric chi-square test using the Statistical Package for the Social Sciences version 12.0 (SPSS). RESULTS Five (30%) and 4 (24%) out of the 17 studied follicular adenoma cases, were positively stained by galectin-3 and glypican-3 respectively, while 30 (97%) and 25 (81%) cases out of the studied 31 carcinoma cases were positively stained by galectin-3 and glypican-3 respectively. The sensitivity, specificity and diagnostic accuracy of galectin-3 vs. glypican-3 in discrimination between thyroid carcinoma and adenoma was 96.8%, 70.6%, and 87.5%vs. 81% 76.5% and 79% respectively. As for the discrimination between follicular-patterned thyroid carcinoma and follicular adenoma it was 90%, 71% and 78% vs. 90% 76.5% and 82%. CONCLUSION Glypican-3 is more specific while galectin-3 is more sensitive in diagnosing thyroid carcinoma while glypican-3 is more specific than galectin-3 in discriminating follicular-patterned neoplasm.
Collapse
Affiliation(s)
| | - Sheren Fouad Younes
- Lecturer, Department of Pathology, Faculty of Medicine, Menoufia University , Egypt
| |
Collapse
|
71
|
Abstract
Advanced hepatocellular carcinoma (HCC) is a serious therapeutic challenge and targeted therapies only provide a modest benefit in terms of overall survival. Novel approaches are urgently needed for the treatment of this prevalent malignancy. Evidence demonstrating the antigenicity of tumour cells, the discovery that immune checkpoint molecules have an essential role in immune evasion of tumour cells, and the impressive clinical results achieved by blocking these inhibitory receptors, are revolutionizing cancer immunotherapy. Here, we review the data on HCC immunogenicity, the mechanisms for HCC immune subversion and the different immunotherapies that have been tested to treat HCC. Taking into account the multiplicity of hyperadditive immunosuppressive forces acting within the HCC microenvironment, a combinatorial approach is advised. Strategies include combinations of systemic immunomodulation and gene therapy, cell therapy or virotherapy.
Collapse
|
72
|
Amankwah EK, Lin HY, Tyrer JP, Lawrenson K, Dennis J, Chornokur G, Aben KKH, Anton-Culver H, Antonenkova N, Bruinsma F, Bandera EV, Bean YT, Beckmann MW, Bisogna M, Bjorge L, Bogdanova N, Brinton LA, Brooks-Wilson A, Bunker CH, Butzow R, Campbell IG, Carty K, Chen Z, Chen YA, Chang-Claude J, Cook LS, Cramer DW, Cunningham JM, Cybulski C, Dansonka-Mieszkowska A, du Bois A, Despierre E, Dicks E, Doherty JA, Dörk T, Dürst M, Easton DF, Eccles DM, Edwards RP, Ekici AB, Fasching PA, Fridley BL, Gao YT, Gentry-Maharaj A, Giles GG, Glasspool R, Goodman MT, Gronwald J, Harrington P, Harter P, Hasmad HN, Hein A, Heitz F, Hildebrandt MA, Hillemanns P, Hogdall CK, Hogdall E, Hosono S, Iversen ES, Jakubowska A, Jensen A, Ji BT, Karlan BY, Jim H, Kellar M, Kiemeney LA, Krakstad C, Kjaer SK, Kupryjanczyk J, Lambrechts D, Lambrechts S, Le ND, Lee AW, Lele S, Leminen A, Lester J, Levine DA, Liang D, Lim BK, Lissowska J, Lu K, Lubinski J, Lundvall L, Massuger LF, Matsuo K, McGuire V, McLaughlin JR, McNeish I, Menon U, Milne RL, Modugno F, Moysich KB, Ness RB, Nevanlinna H, Eilber U, Odunsi K, Olson SH, Orlow I, Orsulic S, Weber RP, Paul J, Pearce CL, Pejovic T, Pelttari LM, Permuth-Wey J, Pike MC, Poole EM, Risch HA, Rosen B, Rossing MA, Rothstein JH, Rudolph A, Runnebaum IB, Rzepecka IK, Salvesen HB, Schernhammer E, Schwaab I, Shu XO, Shvetsov YB, Siddiqui N, Sieh W, Song H, Southey MC, Spiewankiewicz B, Sucheston-Campbell L, Teo SH, Terry KL, Thompson PJ, Thomsen L, Tangen IL, Tworoger SS, van Altena AM, Vierkant RA, Vergote I, Walsh CS, Wang-Gohrke S, Wentzensen N, Whittemore AS, Wicklund KG, Wilkens LR, Wu AH, Wu X, Woo YL, Yang H, Zheng W, Ziogas A, Kelemen LE, Berchuck A, Schildkraut JM, Ramus SJ, Goode EL, Monteiro AN, Gayther SA, Narod SA, Pharoah PDP, Sellers TA, Phelan CM. Epithelial-Mesenchymal Transition (EMT) Gene Variants and Epithelial Ovarian Cancer (EOC) Risk. Genet Epidemiol 2015; 39:689-97. [PMID: 26399219 PMCID: PMC4721602 DOI: 10.1002/gepi.21921] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 01/24/2023]
Abstract
Epithelial-mesenchymal transition (EMT) is a process whereby epithelial cells assume mesenchymal characteristics to facilitate cancer metastasis. However, EMT also contributes to the initiation and development of primary tumors. Prior studies that explored the hypothesis that EMT gene variants contribute to epithelial ovarian carcinoma (EOC) risk have been based on small sample sizes and none have sought replication in an independent population. We screened 15,816 single-nucleotide polymorphisms (SNPs) in 296 genes in a discovery phase using data from a genome-wide association study of EOC among women of European ancestry (1,947 cases and 2,009 controls) and identified 793 variants in 278 EMT-related genes that were nominally (P < 0.05) associated with invasive EOC. These SNPs were then genotyped in a larger study of 14,525 invasive-cancer patients and 23,447 controls. A P-value <0.05 and a false discovery rate (FDR) <0.2 were considered statistically significant. In the larger dataset, GPC6/GPC5 rs17702471 was associated with the endometrioid subtype among Caucasians (odds ratio (OR) = 1.16, 95% CI = 1.07-1.25, P = 0.0003, FDR = 0.19), whereas F8 rs7053448 (OR = 1.69, 95% CI = 1.27-2.24, P = 0.0003, FDR = 0.12), F8 rs7058826 (OR = 1.69, 95% CI = 1.27-2.24, P = 0.0003, FDR = 0.12), and CAPN13 rs1983383 (OR = 0.79, 95% CI = 0.69-0.90, P = 0.0005, FDR = 0.12) were associated with combined invasive EOC among Asians. In silico functional analyses revealed that GPC6/GPC5 rs17702471 coincided with DNA regulatory elements. These results suggest that EMT gene variants do not appear to play a significant role in the susceptibility to EOC.
Collapse
Affiliation(s)
- Ernest K. Amankwah
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL, USA
- Clinical and Translational Research Organization, All Children’s Hospital Johns Hopkins Medicine, St Petersburg, FL
| | - Hui-Yi Lin
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL, USA
| | - Jonathan P. Tyrer
- Department of Public Health and Primary Care, The Centre for Cancer Epidemiology, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK
| | - Kate Lawrenson
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Joe Dennis
- Department of Public Health and Primary Care, The Centre for Cancer Epidemiology, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK
| | - Ganna Chornokur
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL, USA
| | - Katja KH. Aben
- Department for Health Evidence, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
- Comprehensive Cancer Center The Netherlands, Nijmegen, The Netherlands
| | - Hoda Anton-Culver
- Genetic Epidemiology Research Institute, UCI Center for Cancer Genetics Research and Prevention, School of Medicine, Department of Epidemiology, University of California Irvine, Irvine, CA, USA
| | - Natalia Antonenkova
- Byelorussian Institute for Oncology and Medical Radiology Aleksandrov N.N., Minsk, Belarus
| | - Fiona Bruinsma
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
| | - Elisa V. Bandera
- Cancer Prevention and Control, Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, USA
| | - Yukie T. Bean
- Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Matthias W. Beckmann
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen-Nuremberg Comprehensive Cancer Center, Erlangen EMN, Germany
| | - Maria Bisogna
- Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Line Bjorge
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
- Centre for Cancer Biomarkers, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Natalia Bogdanova
- Radiation Oncology Research Unit, Hannover Medical School, Hannover, Germany
| | - Louise A. Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Angela Brooks-Wilson
- Canada's Michael Smith Genome Sciences Centre, BC Cancer Agency, Vancouver, BC, Canada
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC Canada
| | - Clareann H. Bunker
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Ralf Butzow
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, HUS, Finland
- Department of Pathology, Helsinki University Central Hospital, Helsinki, HUS, Finland
| | - Ian G. Campbell
- Cancer Genetics Laboratory, Research Division, Peter MacCallum Cancer Centre, St Andrews Place, East Melbourne, Australia
- Department of Pathology, University of Melbourne, Parkville, Victoria, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, Victoria, Australia
| | - Karen Carty
- Department of Gynaecological Oncology, Glasgow Royal Infirmary, Glasgow, G31 2ER, UK
- CRUK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, 1053 Great Western Road, Glasgow G12 0YN, UK
| | - Zhihua Chen
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL, USA
| | - Y. Ann Chen
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL, USA
| | - Jenny Chang-Claude
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Linda S. Cook
- Division of Epidemiology and Biostatistics, Department of Internal Medicine, University of New Mexico, Albuquerque, NM, USA
| | - Daniel W. Cramer
- Obstetrics and Gynecology Center, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Julie M. Cunningham
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Cezary Cybulski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | | | - Andreas du Bois
- Department of Gynaecology and Gynaecologic Oncology, Kliniken Essen-Mitte/ Evang. Huyssens-Stiftung/ Knappschaft GmbH, Essen, Germany
- Department of Gynaecology and Gynaecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden, Germany
| | - Evelyn Despierre
- Division of Gynecologic Oncology; Leuven Cancer Institute, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Ed Dicks
- Department of Oncology, The Centre for Cancer Epidemiology, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK
| | - Jennifer A. Doherty
- Department of Community and Family Medicine, Section of Biostatistics & Epidemiology, Dartmouth Medical School, Hanover, NH, USA
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA, USA
| | - Thilo Dörk
- Radiation Oncology Research Unit, Hannover Medical School, Hannover, Germany
| | - Matthias Dürst
- Department of Gynecology, Friedrich Schiller University, Jena, Germany
| | - Douglas F. Easton
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
| | - Diana M. Eccles
- Wessex Clinical Genetics Service, Princess Anne Hospital, Southampton, UK
| | - Robert P. Edwards
- Ovarian Cancer Center of Excellence, Department of Obstetrics Gynecology/RS, Division of Gynecological Oncology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Arif B. Ekici
- Institute of Human Genetics, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nuremberg, Erlangen, Germany
| | - Peter A. Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen-Nuremberg Comprehensive Cancer Center, Erlangen EMN, Germany
- University of California at Los Angeles, David Geffen School of Medicine, Department of Medicine, Division of Hematology and Oncology, Los Angeles, CA, USA
| | - Brooke L. Fridley
- Biostatistics and Informatics Shared Resource, University of Kansas Medical Center, Kansas City, KS, USA
| | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute, Shanghai, China
| | | | - Graham G. Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
- Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Rosalind Glasspool
- CRUK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, 1053 Great Western Road, Glasgow G12 0YN, UK
| | - Marc T. Goodman
- Cancer Prevention and Control, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Community and Population Health Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jacek Gronwald
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Patricia Harrington
- Department of Oncology, The Centre for Cancer Epidemiology, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK
| | - Philipp Harter
- Department of Gynaecology and Gynaecologic Oncology, Kliniken Essen-Mitte/ Evang. Huyssens-Stiftung/ Knappschaft GmbH, Essen, Germany
- Department of Gynaecology and Gynaecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden, Germany
| | - Hanis N. Hasmad
- Cancer Research Initiatives Foundation, Sime Darby Medical Center, Subang Jaya, Malaysia
| | - Alexander Hein
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Friedrich-Alexander-University, Erlangen-Nuremberg Comprehensive Cancer Center, Erlangen EMN, Germany
| | - Florian Heitz
- Department of Gynaecology and Gynaecologic Oncology, Kliniken Essen-Mitte/ Evang. Huyssens-Stiftung/ Knappschaft GmbH, Essen, Germany
- Department of Gynaecology and Gynaecologic Oncology, Dr. Horst Schmidt Kliniken Wiesbaden, Wiesbaden, Germany
| | | | - Peter Hillemanns
- Radiation Oncology Research Unit, Hannover Medical School, Hannover, Germany
| | - Claus K. Hogdall
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Estrid Hogdall
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
- Molecular Unit, Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Satoyo Hosono
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Aichi, Japan
| | | | - Anna Jakubowska
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Allan Jensen
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Bu-Tian Ji
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Beth Y. Karlan
- Women's Cancer Program at the Samuel Oschin Comprehensive, Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Heather Jim
- Department of Health Outcomes and Behavior, Moffitt Cancer Center, Tampa, FL, USA
| | - Melissa Kellar
- Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Lambertus A. Kiemeney
- Department for Health Evidence, Radboud University Medical Center, Radboud Institute for Health Sciences, Nijmegen, The Netherlands
| | - Camilla Krakstad
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
- Centre for Cancer Biomarkers, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Susanne K. Kjaer
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Jolanta Kupryjanczyk
- Department of Pathology, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Diether Lambrechts
- Vesalius Research Center, VIB, University of Leuven, Leuven, Belgium
- Laboratory for Translational Genetics, Department of Oncology, University of Leuven, Belgium
| | - Sandrina Lambrechts
- Division of Gynecologic Oncology; Leuven Cancer Institute, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Nhu D. Le
- Cancer Control Research, BC Cancer Agency, Vancouver, BC, Canada
| | - Alice W. Lee
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Shashi Lele
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Arto Leminen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, HUS, Finland
| | - Jenny Lester
- Women's Cancer Program at the Samuel Oschin Comprehensive, Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Douglas A. Levine
- Gynecology Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Dong Liang
- College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Boon Kiong Lim
- Department of Obstetrics and Gynaecology, University Malaya Medical Centre, University Malaya, Kuala Lumpur, Malaysia
| | - Jolanta Lissowska
- Department of Cancer Epidemiology and Prevention, M. Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Karen Lu
- Department of Gynecologic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jan Lubinski
- International Hereditary Cancer Center, Department of Genetics and Pathology, Pomeranian Medical University, Szczecin, Poland
| | - Lene Lundvall
- Department of Gynaecology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Leon F.A.G. Massuger
- Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Keitaro Matsuo
- Division of Epidemiology and Prevention, Aichi Cancer Center Research Institute, Nagoya, Aichi, Japan
| | - Valerie McGuire
- Department of Health Research and Policy - Epidemiology, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Ian McNeish
- CRUK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, 1053 Great Western Road, Glasgow G12 0YN, UK
| | - Usha Menon
- Women's Cancer, UCL EGA Institute for Women's Health, London, UK
| | - Roger L. Milne
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, Australia
- Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - Francesmary Modugno
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
- Women's Cancer Research Program, Magee-Women's Research Institute and University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kirsten B. Moysich
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Roberta B. Ness
- The University of Texas School of Public Health, Houston, TX, USA
| | - Heli Nevanlinna
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, HUS, Finland
| | - Ursula Eilber
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Kunle Odunsi
- Department of Gynecologic Oncology, Roswell Park Cancer Institute, Buffalo, NY
| | - Sara H. Olson
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Irene Orlow
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Sandra Orsulic
- Women's Cancer Program at the Samuel Oschin Comprehensive, Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Rachel Palmieri Weber
- Department of Community and Family Medicine, Duke University Medical Center, Durham, NC, USA
| | - James Paul
- CRUK Clinical Trials Unit, The Beatson West of Scotland Cancer Centre, 1053 Great Western Road, Glasgow G12 0YN, UK
| | - Celeste L. Pearce
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Epidemiology, University of Michigan,1415 Washington Heights, Ann Arbor, Michigan, USA
| | - Tanja Pejovic
- Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Liisa M. Pelttari
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Central Hospital, Helsinki, HUS, Finland
| | | | - Malcolm C. Pike
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Epidemiology and Biostatistics, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - Elizabeth M. Poole
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Harvey A. Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | - Barry Rosen
- Department of Gynecology-Oncology, Princess Margaret Hospital, and Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mary Anne Rossing
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA, USA
| | - Joseph H. Rothstein
- Department of Health Research and Policy- Epidemiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Anja Rudolph
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Ingo B. Runnebaum
- Department of Gynecology, Friedrich Schiller University, Jena, Germany
| | - Iwona K. Rzepecka
- Department of Pathology, The Maria Sklodowska-Curie Memorial Cancer Center and Institute of Oncology, Warsaw, Poland
| | - Helga B. Salvesen
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
- Centre for Cancer Biomarkers, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Eva Schernhammer
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Ira Schwaab
- Institut für Humangenetik, Wiesbaden, Germany
| | - Xiao-Ou Shu
- Epidemiology Center and Vanderbilt, Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Yurii B. Shvetsov
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Hawaii, USA
| | - Nadeem Siddiqui
- Department of Gynaecological Oncology, Glasgow Royal Infirmary, Glasgow, G31 2ER, UK
| | - Weiva Sieh
- Department of Health Research and Policy- Epidemiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Honglin Song
- Department of Oncology, The Centre for Cancer Epidemiology, University of Cambridge, Strangeways Research Laboratory, Cambridge, UK
| | - Melissa C. Southey
- Department of Pathology, University of Melbourne, Parkville, Victoria, Australia
| | | | - Lara Sucheston-Campbell
- Department of Cancer Prevention and Control, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Soo-Hwang Teo
- Cancer Research Initiatives Foundation, Sime Darby Medical Center, Subang Jaya, Malaysia
- University Malaya Medical Centre, University of Malaya, Kuala Lumpur, Maylaysia
| | - Kathryn L. Terry
- Obstetrics and Gynecology Center, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Pamela J. Thompson
- Cancer Prevention and Control, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Community and Population Health Research Institute, Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Lotte Thomsen
- Department of Pathology, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Ingvild L. Tangen
- Department of Gynecology and Obstetrics, Haukeland University Hospital, Bergen, Norway
- Centre for Cancer Biomarkers, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Shelley S. Tworoger
- Obstetrics and Gynecology Center, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Anne M. van Altena
- Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, The Netherlands
| | - Robert A. Vierkant
- Department of Health Science Research, Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Ignace Vergote
- Division of Gynecologic Oncology; Leuven Cancer Institute, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Christine S. Walsh
- Women's Cancer Program at the Samuel Oschin Comprehensive, Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Shan Wang-Gohrke
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Nicolas Wentzensen
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Alice S. Whittemore
- Department of Health Research and Policy- Epidemiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Kristine G. Wicklund
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, WA, USA
| | - Lynne R. Wilkens
- Cancer Epidemiology Program, University of Hawaii Cancer Center, Hawaii, USA
| | - Anna H. Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Xifeng Wu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yin-Ling Woo
- Department of Obstetrics and Gynaecology, University Malaya Medical Centre, University Malaya, Kuala Lumpur, Malaysia
| | - Hannah Yang
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Wei Zheng
- Vanderbilt Epidemiology Center, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Argyrios Ziogas
- Genetic Epidemiology Research Institute, UCI Center for Cancer Genetics Research and Prevention, School of Medicine, Department of Epidemiology, University of California Irvine, Irvine, CA, USA
| | - Linda E. Kelemen
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Andrew Berchuck
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | | | - Joellen M. Schildkraut
- Cancer Prevention, Detection & Control Research Program, Duke Cancer Institute, Durham, NC, USA
| | - Susan J. Ramus
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Ellen L. Goode
- Department of Health Science Research, Division of Epidemiology, Mayo Clinic, Rochester, MN, USA
| | - Alvaro N.A. Monteiro
- Department of Biostatistics and Bioinformatics, Moffitt Cancer Center, Tampa, FL, USA
| | - Simon A. Gayther
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Steven A. Narod
- Women's College Research Institute, University of Toronto, Toronto, Ontario, Canada
| | - Paul D. P. Pharoah
- The Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, UK
| | - Thomas A. Sellers
- Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL, USA
| | | |
Collapse
|
73
|
Delprato A, Bonheur B, Algéo MP, Rosay P, Lu L, Williams RW, Crusio WE. Systems genetic analysis of hippocampal neuroanatomy and spatial learning in mice. GENES BRAIN AND BEHAVIOR 2015; 14:591-606. [PMID: 26449520 DOI: 10.1111/gbb.12259] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/20/2015] [Accepted: 10/06/2015] [Indexed: 12/23/2022]
Abstract
Variation in hippocampal neuroanatomy correlates well with spatial learning ability in mice. Here, we have studied both hippocampal neuroanatomy and behavior in 53 isogenic BXD recombinant strains derived from C57BL/6J and DBA/2J parents. A combination of experimental, neuroinformatic and systems genetics methods was used to test the genetic bases of variation and covariation among traits. Data were collected on seven hippocampal subregions in CA3 and CA4 after testing spatial memory in an eight-arm radial maze task. Quantitative trait loci were identified for hippocampal structure, including the areas of the intra- and infrapyramidal mossy fibers (IIPMFs), stratum radiatum and stratum pyramidale, and for a spatial learning parameter, error rate. We identified multiple loci and gene variants linked to either structural differences or behavior. Gpc4 and Tenm2 are strong candidate genes that may modulate IIPMF areas. Analysis of gene expression networks and trait correlations highlight several processes influencing morphometrical variation and spatial learning.
Collapse
Affiliation(s)
- A Delprato
- University of Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,BioScience Project, Wakefield, MA, USA
| | - B Bonheur
- University of Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France
| | - M-P Algéo
- University of Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France
| | - P Rosay
- University of Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France
| | - L Lu
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - R W Williams
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Sciences Center, Memphis, TN, USA
| | - W E Crusio
- University of Bordeaux, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France.,CNRS, Institut de Neurosciences Cognitives et Intégratives d'Aquitaine, Pessac, France
| |
Collapse
|
74
|
Hakim SA, Raboh NMA. Immunohistochemical expression of glypican 3 in endometrial carcinoma and correlation with prognostic parameters. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:13225-13232. [PMID: 26722522 PMCID: PMC4680467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 09/25/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Carcinogenesis is associated with several critical regulatory molecules which are involved in different signaling pathways such as the WNT signaling pathways. Among which the β-catenin dependent pathway has been associated with human endometrial cancer. Genetic and biochemical studies have demonstrated that glypicans can regulate several signaling pathways including those triggered by Wnts. Glypican 3 is one of six mammalian members of the glypican family of proteoglycans. Overexpression of glypican 3 has been reported in some types of cancers but only few data are available about its expression in endometrial carcinoma and its role in endometrial carcinogenesis. The aim of this study was to examine the immunohistochemical expression of glypican 3 in endometrioid endometrial carcinoma (EEC) and serous endometrial carcinoma (SEC), and to correlate its expression with prognostic factors of endometrial carcinoma. MATERIALS AND METHODS Immunohistochemical expression of glypican 3 was studied in fifty two EEC and nineteen SEC cases. RESULTS Glypican 3 expression showed a significant difference between EEC and SEC (P = 0.027) and it was significantly correlated with tumor grade, stage and myometrial invasion (P = 0.001). CONCLUSION Glypican 3 expression can be used as an adjunct in the differentiation between EEC and SEC. Glypican 3 is associated with poor prognostic parameters in both EEC and SEC, and it can be a promising molecule for targeted immunotherapy in positive cases.
Collapse
Affiliation(s)
- Sarah A Hakim
- Department of Pathology, Faculty of Medicine, Lecturer of Pathology, Ain Shams University Abbasseya square, Cairo, Egypt
| | - Nermine M Abd Raboh
- Department of Pathology, Faculty of Medicine, Lecturer of Pathology, Ain Shams University Abbasseya square, Cairo, Egypt
| |
Collapse
|
75
|
Molee P, Adisakwattana P, Reamtong O, Petmitr S, Sricharunrat T, Suwandittakul N, Chaisri U. Up-regulation of AKAP13 and MAGT1 on cytoplasmic membrane in progressive hepatocellular carcinoma: a novel target for prognosis. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:9796-9811. [PMID: 26617690 PMCID: PMC4637775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 08/25/2015] [Indexed: 06/05/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers and is associated with high mortality worldwide. The current gold standards for HCC surveillance are detection of serum α-fetoprotein (AFP) and ultrasonography; however, non-specificity of AFP and ultrasonography has frequently been reported. Therefore, alternative tools, especially novel specific tumor markers, are required. In this study, cytoplasmic membrane proteins were isolated from phorbol 12-myristate 13-acetate (PMA)-induced invasive HepG2 cells and identified using nano-scale liquid chromatographic tandem mass spectrometry (NLC-MS/MS) with comparison to non-treated controls. The results showed that two proteins, magnesium transporter protein 1 (MAGT1) and A-kinase anchor protein 13 (AKAP13), were highly expressed in PMA-treated HepG2 cells. This up-regulation was confirmed by real-time RT-PCR, western blot analysis, and immunofluorescent staining studies. Furthermore, evaluation of MAGT1 and AKAP13 expression in clinical HCC tissues by immunohistochemistry suggested that both proteins were strongly expressed in tumor tissues with significantly higher average immunoreactive scores of Remmele and Stegner (IRS) than in non-tumor tissues (P ≤ 0.005). In conclusion, the expression levels of MAGT1 and AKAP13 in HCC may be potential biomarkers for the diagnosis and prognosis of this cancer.
Collapse
Affiliation(s)
- Patamaporn Molee
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| | - Poom Adisakwattana
- Department of Helminthology, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| | - Songsak Petmitr
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| | | | - Nantana Suwandittakul
- Department of Helminthology, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| | - Urai Chaisri
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol UniversityBangkok 10400, Thailand
| |
Collapse
|
76
|
Liu Y, Zheng D, Liu M, Bai J, Zhou X, Gong B, Lü J, Zhang Y, Huang H, Luo W, Huang G. Downregulation of glypican-3 expression increases migration, invasion, and tumorigenicity of human ovarian cancer cells. Tumour Biol 2015; 36:7997-8006. [PMID: 25967456 DOI: 10.1007/s13277-015-3528-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/04/2015] [Indexed: 01/03/2023] Open
Abstract
Glypican-3 (GPC3) is a membrane of heparan sulfate proteoglycan family involved in cell proliferation, adhesion, migration, invasion, and differentiation during the development of the majority of mesodermal tissues and organs. GPC3 is explored as a potential biomarker for hepatocellular carcinoma screening. However, as a tumor-associated antigen, its role in ovarian cancer remains elusive. In this report, the expression levels of GPC3 in the various ovarian cancer cells were determined with quantitative reverse transcription-polymerase chain reaction (qRT-PCR), and GPC3 expression in ovarian cancer UCI 101 and A2780 cells was knocked down by siRNA transfection, and the effects of GPC3 knockdown on in vitro cell proliferation, migration, and invasion were respectively analyzed by 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT) assay and Transwell migration assay. Additionally, the effect of GPC3 knockdown on in vivo tumorigenesis were investigated in athymic nude mice. The results indicated that GPC3 knockdown significantly promoted cell proliferation and increased cell migration and invasion by upregulation of matrix metalloproteinase (MMP)-2 and MMP-9 expression and downregulation of tissue inhibitor of metalloproteinase-1 expression. Additionally, GPC3 knockdown also increased in vivo tumorigenicity of UCI 101 and A2780 cells and final tumor weights and volumes after subcutaneous cell injection in the nude mice. The results of immunohistochemical staining and Western blotting both demonstrated a lower expression of GPC3 antigen in the tumors of GPC3 knockdown groups than that of negative control groups. Moreover, transforming growth factor-β2 protein expression in the tumors of GPC3 knockdown groups was significantly increased, which at least contributed to tumor growth in the nude mice. Taken together, these findings suggest that GPC3 knockdown promotes the progression of human ovarian cancer cells by increasing their migration, invasion, and tumorigenicity, and suggest that GPC3 is a potential therapeutic target for ovarian cancer patients.
Collapse
Affiliation(s)
- Ying Liu
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Dongping Zheng
- Ultrasonic Imaging Division, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Mingming Liu
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Jiao Bai
- Ultrasonic Imaging Division, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Xi Zhou
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Baolan Gong
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Jieyu Lü
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Yi Zhang
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Hui Huang
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China
| | - Wenying Luo
- Department of Clinical Laboratory, Affiliated Hospital of Guangdong Medical College, Zhanjiang, 524001, China
| | - Guangrong Huang
- Department of Obstetrics and Gynecology, Renmin Hospital, Hubei University of Medicine, Shiyan, 442000, Hubei Province, China.
| |
Collapse
|
77
|
Farnedi A, Rossi S, Bertani N, Gulli M, Silini EM, Mucignat MT, Poli T, Sesenna E, Lanfranco D, Montebugnoli L, Leonardi E, Marchetti C, Cocchi R, Ambrosini-Spaltro A, Foschini MP, Perris R. Proteoglycan-based diversification of disease outcome in head and neck cancer patients identifies NG2/CSPG4 and syndecan-2 as unique relapse and overall survival predicting factors. BMC Cancer 2015; 15:352. [PMID: 25935541 PMCID: PMC4429505 DOI: 10.1186/s12885-015-1336-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 04/22/2015] [Indexed: 01/07/2023] Open
Abstract
Background Tumour relapse is recognized to be the prime fatal burden in patients affected by head and neck squamous cell carcinoma (HNSCC), but no discrete molecular trait has yet been identified to make reliable early predictions of tumour recurrence. Expression of cell surface proteoglycans (PGs) is frequently altered in carcinomas and several of them are gradually emerging as key prognostic factors. Methods A PG expression analysis at both mRNA and protein level, was pursued on primary lesions derived from 173 HNSCC patients from whom full clinical history and 2 years post-surgical follow-up was accessible. Gene and protein expression data were correlated with clinical traits and previously proposed tumour relapse markers to stratify high-risk patient subgroups. Results HNSCC lesions were indeed found to exhibit a widely aberrant PG expression pattern characterized by a variable expression of all PGs and a characteristic de novo transcription/translation of GPC2, GPC5 and NG2/CSPG4 respectively in 36%, 72% and 71% on 119 cases. Importantly, expression of NG2/CSPG4, on neoplastic cells and in the intralesional stroma (Hazard Ratio [HR], 6.76, p = 0.017) was strongly associated with loco-regional relapse, whereas stromal enrichment of SDC2 (HR, 7.652, p = 0.007) was independently tied to lymphnodal infiltration and disease-related death. Conversely, down-regulated SDC1 transcript (HR, 0.232, p = 0.013) uniquely correlated with formation of distant metastases. Altered expression of PGs significantly correlated with the above disease outcomes when either considered alone or in association with well-established predictors of poor prognosis (i.e. T classification, previous occurrence of precancerous lesions and lymphnodal metastasis). Combined alteration of all three PGs was found to be a reliable predictor of shorter survival. Conclusions An unprecedented PG-based prognostic portrait is unveiled that incisively diversifies disease course in HNSCC patients beyond the currently known clinical and molecular biomarkers. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1336-4) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Anna Farnedi
- Department of Biomedical and Neuromotor Sciences, Section of Anatomic Pathology, University of Bologna, Bellaria Hospital, Bologna, Italy.
| | - Silvia Rossi
- COMT - Centre for Molecular Translational Oncology & Department of Life Sciences, University of Parma, Parma, Italy.
| | - Nicoletta Bertani
- COMT - Centre for Molecular Translational Oncology & Department of Life Sciences, University of Parma, Parma, Italy.
| | - Mariolina Gulli
- Department of Life Sciences, Division of Genetics and Environmental Biotechnology, University of Parma, Parma, Italy.
| | - Enrico Maria Silini
- COMT - Centre for Molecular Translational Oncology & Department of Life Sciences, University of Parma, Parma, Italy. .,Department of Pathology and Laboratory Medicine, University of Parma, Parma, Italy.
| | - Maria Teresa Mucignat
- S.O.C. of Experimental Oncology 2, The National Tumour Institute Aviano - CRO-IRCCS, Aviano, Pordenone, Italy.
| | - Tito Poli
- Maxillofacial Surgery Section, Head and Neck Department, University of Parma, Parma, Italy.
| | - Enrico Sesenna
- Maxillofacial Surgery Section, Head and Neck Department, University of Parma, Parma, Italy.
| | - Davide Lanfranco
- Maxillofacial Surgery Section, Head and Neck Department, University of Parma, Parma, Italy.
| | - Lucio Montebugnoli
- Unit of Maxillo-Facial Surgery, Department of Oral Sciences, University of Bologna, Bellaria Hospital, Bologna, Italy.
| | - Elisa Leonardi
- Department of Biomedical and Neuromotor Sciences, Section of Anatomic Pathology, University of Bologna, Bellaria Hospital, Bologna, Italy.
| | - Claudio Marchetti
- Department of Biomedical and Neuromotor Sciences, Unit of Maxillo-Facial Surgery, University of Bologna, S. Orsola Hospital, Bologna, Italy.
| | - Renato Cocchi
- Unit of Maxillo-facial Surgery at Bellaria Hospital, Bologna, Italy. .,Unit of Maxillo-facial Surgery, "Casa Sollievo della Sofferenza", San Giovanni in Rotondo, Italy.
| | - Andrea Ambrosini-Spaltro
- Department of Biomedical and Neuromotor Sciences, Section of Anatomic Pathology, University of Bologna, Bellaria Hospital, Bologna, Italy.
| | - Maria Pia Foschini
- Department of Biomedical and Neuromotor Sciences, Section of Anatomic Pathology, University of Bologna, Bellaria Hospital, Bologna, Italy.
| | - Roberto Perris
- COMT - Centre for Molecular Translational Oncology & Department of Life Sciences, University of Parma, Parma, Italy. .,S.O.C. of Experimental Oncology 2, The National Tumour Institute Aviano - CRO-IRCCS, Aviano, Pordenone, Italy.
| |
Collapse
|
78
|
Aydin O, Yildiz L, Baris S, Dundar C, Karagoz F. Expression of Glypican 3 in low and high grade urothelial carcinomas. Diagn Pathol 2015; 10:34. [PMID: 25896897 PMCID: PMC4414302 DOI: 10.1186/s13000-015-0266-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 04/07/2015] [Indexed: 01/10/2023] Open
Abstract
Background Glypican-3 (GPC3) is an oncofetal protein which is encoded by GPC3 gene and takes role in the regulation of cell division and apoptosis. Overexpression of GPC3 has been reported in some types of cancer such as hepatocellular carcinoma (HCC), melanoma, squamous cell carcinoma of the lungs and testicular germ cell tumors. The aim of this study was to investigate the immunohistochemical expression of GPC3 in the non-neoplastic urothelium and in urothelial carcinoma (UC). We also aimed to explore the alterations in the GPC3 expression according to the grade and the invasiveness of UC. Methods GPC3 expression was studied in 108 UC cases by using immunohistochemistry. Each section was evaluated in terms of the extensiveness and intensity of GPC3 staining. Scores of immunostaining were correlated with tumor grade and stage. Results GPC3 expression was observed in 38 cases (35.2%). GPC3 expression was positive in 43.6% of high and in 13.3% of low grade UC (p: 0.003). In 19 UC cases biopsy also harbored non-neoplastic urothelium which showed no staining for GPC3. The difference in staining percentages between low and high grade UCs, suggests that GPC3 staining could be used as an adjunctive marker in cases where the distinction between the low and high grade tumors is difficult. In addition, lack of staining in the non-neoplastic urothelial areas in 19 cases raises the possibility of the use of GPC3 staining for the distinction between neoplastic and non-neoplastic urothelium, especially in punch biopsy samples. Conclusions Based on our results potential role of GPC3 in urothelial carcinogenesis warrants further investigation, especially the potential use of GPC3 for therapeutic and diagnostic purposes. Virtual Slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/2260833001522844
Collapse
Affiliation(s)
- Oguz Aydin
- Department of Pathology, Ondokuz Mayis University, Faculty of Medicine, Atakum, Samsun, 55139, Turkey.
| | - Levent Yildiz
- Department of Pathology, Ondokuz Mayis University, Faculty of Medicine, Atakum, Samsun, 55139, Turkey.
| | - Sancar Baris
- Department of Pathology, Ondokuz Mayis University, Faculty of Medicine, Atakum, Samsun, 55139, Turkey.
| | - Cihad Dundar
- Department of Public Health, Ondokuz Mayis University, Faculty of Medicine, Samsun, Turkey.
| | - Filiz Karagoz
- Department of Pathology, Ondokuz Mayis University, Faculty of Medicine, Atakum, Samsun, 55139, Turkey.
| |
Collapse
|
79
|
Smith MM, Melrose J. Proteoglycans in Normal and Healing Skin. Adv Wound Care (New Rochelle) 2015; 4:152-173. [PMID: 25785238 DOI: 10.1089/wound.2013.0464] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Indexed: 02/04/2023] Open
Abstract
Significance: Proteoglycans have a distinct spatial localization in normal skin and are essential for the correct structural development, organization, hydration, and functional properties of this tissue. The extracellular matrix (ECM) is no longer considered to be just an inert supportive material but is a source of directive, spatial and temporal, contextual information to the cells via components such as the proteoglycans. There is a pressing need to improve our understanding of how these important molecules functionally interact with other matrix structures, cells and cellular mediators in normal skin and during wound healing. Recent Advances: New antibodies to glycosaminoglycan side chain components of skin proteoglycans have facilitated the elucidation of detailed localization patterns within skin. Other studies have revealed important proliferative activities of proteinase-generated fragments of proteoglycans and other ECM components (matricryptins). Knockout mice have further established the functional importance of skin proteoglycans in the assembly and homeostasis of the normal skin ECM. Critical Issues: Our comprehension of the molecular and structural complexity of skin as a complex, dynamic, constantly renewing, layered connective tissue is incomplete. The impact of changes in proteoglycans on skin pathology and the wound healing process is recognized as an important area of pathobiology and is an area of intense investigation. Future Directions: Advanced technology is allowing the development of new artificial skins. Recent knowledge on skin proteoglycans can be used to incorporate these molecules into useful adjunct therapies for wound healing and for maintenance of optimal tissue homeostasis in aging skin.
Collapse
Affiliation(s)
- Margaret Mary Smith
- Raymond Purves Research Laboratories, Kolling Institute (University of Sydney), Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - James Melrose
- Raymond Purves Research Laboratories, Kolling Institute (University of Sydney), Royal North Shore Hospital, St Leonards, New South Wales, Australia
| |
Collapse
|
80
|
PTPσ functions as a presynaptic receptor for the glypican-4/LRRTM4 complex and is essential for excitatory synaptic transmission. Proc Natl Acad Sci U S A 2015; 112:1874-9. [PMID: 25624497 DOI: 10.1073/pnas.1410138112] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Leukocyte common antigen-related receptor protein tyrosine phosphatases--comprising LAR, PTPδ, and PTPσ--are synaptic adhesion molecules that organize synapse development. Here, we identify glypican 4 (GPC-4) as a ligand for PTPσ. GPC-4 showed strong (nanomolar) affinity and heparan sulfate (HS)-dependent interaction with the Ig domains of PTPσ. PTPσ bound only to proteolytically cleaved GPC-4 and formed additional complex with leucine-rich repeat transmembrane protein 4 (LRRTM4) in rat brains. Moreover, single knockdown (KD) of PTPσ, but not LAR, in cultured neurons significantly reduced the synaptogenic activity of LRRTM4, a postsynaptic ligand of GPC-4, in heterologous synapse-formation assays. Finally, PTPσ KD dramatically decreased both the frequency and amplitude of excitatory synaptic transmission. This effect was reversed by wild-type PTPσ, but not by a HS-binding-defective PTPσ mutant. Our results collectively suggest that presynaptic PTPσ, together with GPC-4, acts in a HS-dependent manner to maintain excitatory synapse development and function.
Collapse
|
81
|
Dinccelik-Aslan M, Gumus-Akay G, Elhan AH, Unal E, Tukun A. Diagnostic and prognostic significance of glypican 5 and glypican 6 gene expression levels in gastric adenocarcinoma. Mol Clin Oncol 2015; 3:584-590. [PMID: 26137271 DOI: 10.3892/mco.2015.486] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 12/09/2014] [Indexed: 12/26/2022] Open
Abstract
Gastric Cancer is one of the most common malignancies worldwide and the second most common cause of cancer-related mortality. Previous studies revealed several genetic alterations specific to gastric cancer. In this study, we aimed to investigate the diagnostic and prognostic significance of the expression levels of the glypican 5 and glypican 6 genes (GPC5 and GPC6, respectively) in gastric cancer. For this purpose, GPC5 and GPC6 expression was quantitatively determined by quantitative polymerase chain reaction method in normal gastric mucosa and intestinal type gastric adenocarcinoma samples from 35 patients. The expression levels of GPC5 and GPC6 were compared between normal and tumor tissues. Additionally, the association of the expression levels in tumor tissues with several clinicopathological parameters was evaluated. Although GPC5 was not expressed in any of the samples, the expression of GPC6, which was detected in both groups, was found to be significantly higher in tumor tissues compared to that in normal samples (P=0.039). However, there was no statistically significant association between GPC6 expression and any of the clinicopathological parameters investigated (P>0.05). Our findings suggested that an increase in GPC6 expression levels may be implicated in gastric cancer development, but not in cancer progression.
Collapse
Affiliation(s)
| | - Guvem Gumus-Akay
- Brain Research Centre, Ankara University, Mamak, Ankara 06900, Turkey
| | - Atilla Halil Elhan
- Department of Biostatistics, Faculty of Medicine, Ankara University, Sihhiye, Ankara 06100, Turkey
| | - Ekrem Unal
- Department of Surgical Oncology, Research and Training Hospital, Faculty of Medicine, Ankara University, Cebeci, Ankara 06580, Turkey
| | - Ajlan Tukun
- Department of Medical Genetics, Faculty of Medicine, Ankara University, Sihhiye, Ankara 06100, Turkey
| |
Collapse
|
82
|
Bioinformatic and immunological analysis reveals lack of support for measles virus related mimicry in Crohn's disease. BMC Med 2014; 12:139. [PMID: 25168804 PMCID: PMC4171545 DOI: 10.1186/s12916-014-0139-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Accepted: 07/28/2014] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND A link between measles virus and Crohn's disease (CD) has been postulated. We assessed through bioinformatic and immunological approaches whether measles is implicated in CD induction, through molecular mimicry. METHODS The BLAST2p program was used to identify amino acid sequence similarities between five measles virus and 56 intestinal proteins. Antibody responses to measles/human mimics were tested by an in-house ELISA using serum samples from 50 patients with CD, 50 with ulcerative colitis (UC), and 38 matched healthy controls (HCs). RESULTS We identified 15 sets of significant (>70%) local amino acid homologies from two measles antigens, hemagglutinin-neuraminidase and fusion-glycoprotein, and ten human intestinal proteins. Reactivity to at least one measles 15-meric mimicking peptide was present in 27 out of 50 (54%) of patients with CD, 24 out of 50 (48%) with UC (CD versus UC, p = 0.68), and 13 out of 38 (34.2%) HCs (CD versus HC, p = 0.08). Double reactivity to at least one measles/human pair was present in four out of 50 (8%) patients with CD, three out of 50 (6%) with UC (p = 0.99), and in three out of 38 (7.9%) HCs (p >0.05 for all). Titration experiments yielded different extinction curves for anti-measles and anti-human intestinal double-reactive antibodies. Epitope prediction algorithms and three-dimensional modeling provided bioinformatic confirmation for the observed antigenicity of the main measles virus epitopic regions. CONCLUSIONS Measles sequences mimicking intestinal proteins are frequent targets of antibody responses in patients with CD, but this reactivity lacks disease specificity and does not initiate cross-reactive responses to intestinal mimics. We conclude that there is no involvement of measles/human molecular mimicry in the etiopathogenesis of CD.
Collapse
|
83
|
Li J, Gao JZ, Du JL, Wei LX. Prognostic and clinicopathological significance of glypican-3 overexpression in hepatocellular carcinoma: A meta-analysis. World J Gastroenterol 2014; 20:6336-6344. [PMID: 24876756 PMCID: PMC4033473 DOI: 10.3748/wjg.v20.i20.6336] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 01/07/2014] [Accepted: 01/20/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the prognostic and clinicopathological significance of glypican-3 (GPC3) overexpression in hepatocellular carcinoma (HCC).
METHODS: Publications were searched using PubMed, EMBASE, the Cochrane Library and the Chinese Biomedical Literature Database up to March 2013. Inclusion and exclusion criteria were established to screen eligible studies for meta-analysis. The hazard ratios (HRs) of the eligible studies were pooled using RevMan 5.2 software to evaluate the impact of GPC3 overexpression on overall survival (OS) and disease-free survival (DFS) in HCC patients. The correlation between GPC3 expression and clinicopathological parameters of HCC was also analyzed.
RESULTS: A total of five studies with 493 patients were included in the meta-analysis. The combined HRs indicated that GPC3 overexpression can predict poor OS (n = 362 in 3 studies, HR = 2.18, 95%CI: 1.47-3.24, Z = 3.86, P = 0.0001) and DFS (n = 325 in 3 studies, HR = 2.05, 95%CI: 1.43-2.93, Z = 3.94, P < 0.0001) in HCC patients without heterogeneity. Egger’s and Begg’s tests were applied to detect publication bias, and the results showed that there was no evidence of publication bias detected in the OS studies (the P value for Egger’s test was 0.216) or DFS studies (the P value for Egger’s test was 0.488). The combined odds ratios (ORs) suggested that GPC3 expression tends to be associated with tumor vascular invasion (OR = 2.74, 95%CI: 1.15-6.52, P = 0.02), hepatic cirrhosis (OR = 2.10, 95%CI: 1.31-3.36, P = 0.002), poor tumor differentiation (OR = 0.22, 95%CI: 0.13-0.40, P < 0.00001) and advanced TNM stage (OR = 0.31, 95%CI: 0.18-0.51, P < 0.00001).
CONCLUSION: From this study, we conclude that GPC3 overexpression tends to be associated with a poor prognosis (poor OS or DFS) in HCC.
Collapse
|
84
|
Ofuji K, Saito K, Yoshikawa T, Nakatsura T. Critical analysis of the potential of targeting GPC3 in hepatocellular carcinoma. J Hepatocell Carcinoma 2014; 1:35-42. [PMID: 27508174 PMCID: PMC4918265 DOI: 10.2147/jhc.s48517] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of cancer-related deaths worldwide. The treatment options for patients with advanced HCC are limited, and novel treatment strategies are required urgently. Glypican-3 (GPC3), a member of the glypican family of heparan sulfate proteoglycans, is overexpressed in 72%−81% of HCC cases, and is correlated with a poor prognosis. GPC3 regulates both stimulatory and inhibitory signals, and plays a key role in regulating cancer cell growth. GPC3 is released into the serum, and so might be a useful diagnostic marker for HCC. GPC3 is also used as an immunotherapeutic target in HCC. A Phase I study of a humanized anti-GPC3 monoclonal antibody, GC33, revealed a good safety profile and potential antitumor activity, and a Phase II trial is currently ongoing. In addition, the authors’ investigator-initiated Phase I study of a GPC3-derived peptide vaccine showed good safety and tolerability, and demonstrated that the GPC3 peptide-specific cytotoxic T-lymphocyte frequency in peripheral blood correlated with overall survival in HCC patients. A sponsor-initiated Phase I clinical trial of a three-peptide cocktail vaccine, which includes a GPC3-derived peptide, is also underway. GPC3 is currently recognized as a promising therapeutic target and diagnostic marker for HCC. This review introduces the recent progress in GPC3 research, from biology to clinical impact.
Collapse
Affiliation(s)
- Kazuya Ofuji
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Keigo Saito
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Toshiaki Yoshikawa
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| | - Tetsuya Nakatsura
- Division of Cancer Immunotherapy, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan
| |
Collapse
|
85
|
Ikeda M, Ohkawa S, Okusaka T, Mitsunaga S, Kobayashi S, Morizane C, Suzuki I, Yamamoto S, Furuse J. Japanese phase I study of GC33, a humanized antibody against glypican-3 for advanced hepatocellular carcinoma. Cancer Sci 2014; 105:455-62. [PMID: 24521523 PMCID: PMC4317809 DOI: 10.1111/cas.12368] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 01/27/2014] [Accepted: 02/05/2014] [Indexed: 12/15/2022] Open
Abstract
GC33 is a humanized mAb against human glypican-3 (GPC3). In the first-in-human study carried out in the USA, GC33 was well tolerated and showed preliminary antitumor activity in patients with advanced hepatocellular carcinoma. This study aimed to assess the safety, tolerability, and pharmacokinetic characteristics of GC33 in Japanese patients with advanced hepatocellular carcinoma. The study design was a conventional 3 + 3 dose-escalation design to determine the maximum tolerated dose of GC33 given i.v. at 5, 10, or 20 mg/kg weekly. Immunohistochemistry was carried out on tumor biopsies to evaluate GPC3 expression. Thirteen patients were enrolled across the three dose levels, and no patients observed any dose-limiting toxicity up to the highest planned dose of 20 mg/kg. The most common adverse events were decreased lymphocyte count, decreased natural killer cell count, increased C-reactive protein, and pyrexia. Grade 3 adverse events (increased blood pressure, decreased lymphocyte count, and decreased platelet count) were observed in two or more patients. The AUCinf showed a dose-proportional increase from the 5 mg/kg dose group to the 20 mg/kg dose group. The trough concentrations of GC33 appeared to reach a steady state after the fourth to the sixth dose. Seven of the 13 patients showed stable disease, the other six showed progressive disease. Furthermore, three patients showed long-term stable disease of more than 5 months. In conclusion, GC33 given at up to 20 mg/kg weekly was well tolerated in Japanese patients with advanced hepatocellular carcinoma.
Collapse
Affiliation(s)
- Masafumi Ikeda
- Department of Hepatobiliary and Pancreatic Oncology, National Cancer Center Hospital East, Chiba, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
86
|
Sham JG, Kievit FM, Grierson JR, Miyaoka RS, Yeh MM, Zhang M, Yeung RS, Minoshima S, Park JO. Glypican-3-targeted 89Zr PET imaging of hepatocellular carcinoma. J Nucl Med 2014; 55:799-804. [PMID: 24627434 DOI: 10.2967/jnumed.113.132118] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
UNLABELLED Hepatocellular carcinoma (HCC) is a devastating malignancy in which imperfect imaging plays a primary role in diagnosis. Glypican-3 (GPC3) is an HCC-specific cell surface proteoglycan overexpressed in most HCCs. This paper presents the use of (89)Zr-conjugated monoclonal antibody against GPC3 ((89)Zr-αGPC3) for intrahepatic tumor localization using PET. METHODS Polymerase chain reaction confirmed relative GPC3 expression in cell lines. In vitro binding, in vivo biodistribution, and small-animal PET studies were performed on GPC3-expressing HepG2 and non-GPC3-expressing HLF and RH7777 cells and orthotopic xenografts. RESULTS (89)Zr-αGPC3 demonstrated antibody-dependent, antigen-specific tumor binding. HepG2 liver tumors exhibited high peak uptake (836.6 ± 86.6 percentage injected dose [%ID]/g) compared with background liver (27.5 ± 1.6 %ID/g). Tumor-to-liver contrast ratio was high and peaked at 32.5. The smallest HepG2 tumor (<1 mm) showed lower peak uptake (42.5 ± 6.4 %ID/g) and tumor-to-liver contrast (1.57) but was still clearly visible on PET. Day 7 tissue activity was still substantial in HepG2 tumors (466.4 ± 87.6 %ID/g) compared with control RH7777 tumors (3.9 ± 1.3 %ID/g, P < 0.01), indicating antigen specificity by (89)Zr-αGPC3. HepG2 tumor treated with unlabeled αGPC3 or heat-denatured (89)Zr-αGPC3 demonstrated tumor activity (2.1 %ID/g) comparable to that of control xenografts, confirming antibody dependency. CONCLUSION This study demonstrated the feasibility of using (89)Zr-αGPC3 to image HCC in the liver, as well as the qualitative determination of GPC3 expression via small-animal PET. The ability to clarify the identity of small liver lesions with an HCC-specific PET probe would provide clinicians with vital information that could significantly alter patient management, warranting further investigation for clinical translation.
Collapse
Affiliation(s)
- Jonathan G Sham
- Department of Surgery, University of Washington, Seattle, Washington
| | | | | | | | | | | | | | | | | |
Collapse
|
87
|
Xiao WK, Qi CY, Chen D, Li SQ, Fu SJ, Peng BG, Liang LJ. Prognostic significance of glypican-3 in hepatocellular carcinoma: a meta-analysis. BMC Cancer 2014; 14:104. [PMID: 24548704 PMCID: PMC3984430 DOI: 10.1186/1471-2407-14-104] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 01/31/2014] [Indexed: 12/14/2022] Open
Abstract
Backgrounds Glypican-3(GPC3) has been implicated in tumor development and progression for several years. However, the prognostic significance of GPC3 expression in patients with hepatocellular carcinoma (HCC) is controversial. We performed a meta-analysis of available studies to assess whether GPC3 can be used as a prognostic factor in patients with HCC. Methods We searched PubMed and Ovid EBM Reviews databases and evaluated the reference list of relevant articles for studies that assessed the prognostic relevance of GPC3 in patients with HCC. Meta-analysis was performed using hazard ratio (HR) or odds ratio (OR) and 95% confidence intervals (95% CIs) as effect measures. Results A meta-analysis of eight studies included 1070 patients was carried out to evaluate the association between GPC3 and overall survival (OS) and disease-free survival (DFS) in HCC patients. The relation between GPC3 and tumor pathological features was also assessed. Our analysis results indicated that high GPC3 expression predicted poor OS (HR: 1.96, 95% CI: 1.51–2.55) and DFS (HR: 1.99, 95% CI: 1.57-2.51) of patients with HCC. GPC3 overexpression was significantly associated with high tumor grade (OR: 3.30, 95% CI: 2.04–5.33), late TNM stage (OR: 2.26, 95% CI: 1.00–5.12), and the presence of vascular invasion (OR: 2.43, 95% CI: 1.23–4.82). Conclusions GPC3 overexpression indicates a poor prognosis for patients with HCC, and it may also have predictive potential for HCC invasion and metastasis.
Collapse
Affiliation(s)
| | | | | | - Shao-Qiang Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, Sun Yat-sen University, No, 58 Zhongshan Er Road, Guangzhou 510080, China.
| | | | | | | |
Collapse
|
88
|
Gong L, Wei LX, Ren P, Zhang WD, Liu XY, Han XJ, Yao L, Zhu SJ, Lan M, Li YH, Zhang W. Dysplastic nodules with glypican-3 positive immunostaining: a risk for early hepatocellular carcinoma. PLoS One 2014; 9:e87120. [PMID: 24498024 PMCID: PMC3909016 DOI: 10.1371/journal.pone.0087120] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 12/18/2013] [Indexed: 01/02/2023] Open
Abstract
Glypican-3 (GPC3) has been reported to be a novel serum and histochemical marker for HCC. The positivity or negativity for GPC3 in hepatic precancerous lesions, such as dysplastic nodules (DN), has also been described. Moreover, our previous studies have demonstrated that some DN in liver cirrhosis represent monoclonal hyperplasia, and confirmed their neoplastic nature. However, additional studies must be performed to investigate further the relationship between DN with GPC3 positivity and HCC. Thus, we first investigated the expression of GPC3 in 136 HCC and 103 small DN (less than 1 cm in diameter) by immunohistochemical staining and determined the clonality of 81 DN from female patients using X-chromosome inactivation mosaicism and polymorphism of androgen receptor (AR) gene. Then we examined these samples for chromosomal loss of heterozygosity (LOH) at 11 microsatellite polymorphism sites. The results demonstrated that GPC3 immunoreactivity was detected in 103 of 136 HCC (75.7%) and 19 of 103 DN (18.4%), and the positive ratio correlated with HBsAg positivity. Clonality assays showed that 15 GPC3-positive DN from female patients, including 12 high-grade DN (HGDN), and 28 (42.4%) of 66 GPC3-negative DN, were monoclonal. In addition, among 19 GPC3-positive DN, chromosomal LOH was found at loci D6S1008 (100%, 19/19), D8S262 (52.6%, 10/19) and D11S1301 (57.9%, 11/19). However, the LOH frequency in GPC3-negative DN was 5.95% (5/84), 23.8% (20/84), and 4.76% (4/84) in three loci, respectively. Thus, we concluded that GPC3-positive DN, especially GPC3-positive HGDN, was really a late premalignant lesion of HCC.
Collapse
Affiliation(s)
- Li Gong
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Long-Xiao Wei
- Department of Nuclear Medicine, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Pin Ren
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Wen-Dong Zhang
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Xiao-Yan Liu
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Xiu-Juan Han
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Li Yao
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Shao-Jun Zhu
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Miao Lan
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
| | - Yan-Hong Li
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
- Department of Gynaecology and Obstetrics, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
- * E-mail: (WZ); (Y-HL)
| | - Wei Zhang
- The Helmholtz Sino-German Laboratory for Cancer Research, Department of Pathology, Tangdu Hospital, The Fourth Military Medical University, Xi’an, P.R China
- * E-mail: (WZ); (Y-HL)
| |
Collapse
|
89
|
Lee HJ, Yeon JE, Suh SJ, Lee SJ, Yoon EL, Kang K, Yoo YJ, Kim JH, Seo YS, Yim HJ, Byun KS. Clinical utility of plasma glypican-3 and osteopontin as biomarkers of hepatocellular carcinoma. Gut Liver 2013; 8:177-85. [PMID: 24672660 PMCID: PMC3964269 DOI: 10.5009/gnl.2014.8.2.177] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 05/28/2013] [Accepted: 06/21/2013] [Indexed: 12/21/2022] Open
Abstract
Background/Aims α-Fetoprotein (AFP) is the biomarker most widely used to detect hepatocellular carcinoma (HCC), despite its suboptimal diagnostic accuracy. Glypican-3 (GPC3) and osteopontin (OPN) are secreted glycoproteins that are reportedly associated with tumorigenesis and metastasis. This study was conducted to evaluate the clinical utility of using plasma GPC3 and OPN as diagnostic biomarkers for HCC. Methods We measured the plasma levels of GPC3 and OPN in 120 HCC and 40 chronic liver disease (CLD) patients via an enzyme-linked immunosorbent assay. The diagnostic accuracy of each tumor marker was evaluated using receiver operating characteristic (ROC) curve analysis. Results The GPC3 levels in the HCC patients (75.8 ng/mL) were significantly higher (p=0.020) than the levels in patients with CLD (66.4 ng/mL). The area under the ROC curve (AUROC) values for GPC3 and OPN were 0.62 and 0.51, respectively. In subgroup analyses, including subgroups of HCC patients with low serum AFP and PIVKA II levels, the AUROC of GPC3 remained relatively high (0.66), and GPC3 showed a high sensitivity (62.1%) for detecting small HCC tumors. Conclusions The plasma levels of GPC3 and OPN demonstrated low diagnostic accuracy for HCC. However, GPC3 may have a complementary role in diagnosing HCC in patients with nondiagnostic levels of conventional tumor markers and with small-sized tumors.
Collapse
Affiliation(s)
- Hyun Jung Lee
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Jong Eun Yeon
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sang Jun Suh
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Sun Jae Lee
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Eileen L Yoon
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Keunhee Kang
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yang Jae Yoo
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Ji Hoon Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Yeon Seok Seo
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hyung Joon Yim
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Kwan Soo Byun
- Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| |
Collapse
|
90
|
Identification and expression analysis of zebrafish glypicans during embryonic development. PLoS One 2013; 8:e80824. [PMID: 24244720 PMCID: PMC3828384 DOI: 10.1371/journal.pone.0080824] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 10/08/2013] [Indexed: 11/26/2022] Open
Abstract
Heparan sulfate Proteoglycans (HSPG) are ubiquitous molecules with indispensable functions in various biological processes. Glypicans are a family of HSPG’s, characterized by a Gpi-anchor which directs them to the cell surface and/or extracellular matrix where they regulate growth factor signaling during development and disease. We report the identification and expression pattern of glypican genes from zebrafish. The zebrafish genome contains 10 glypican homologs, as opposed to six in mammals, which are highly conserved and are phylogenetically related to the mammalian genes. Some of the fish glypicans like Gpc1a, Gpc3, Gpc4, Gpc6a and Gpc6b show conserved synteny with their mammalian cognate genes. Many glypicans are expressed during the gastrulation stage, but their expression becomes more tissue specific and defined during somitogenesis stages, particularly in the developing central nervous system. Existence of multiple glypican orthologs in fish with diverse expression pattern suggests highly specialized and/or redundant function of these genes during embryonic development.
Collapse
|
91
|
Feng M, Ho M. Glypican-3 antibodies: a new therapeutic target for liver cancer. FEBS Lett 2013; 588:377-82. [PMID: 24140348 DOI: 10.1016/j.febslet.2013.10.002] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 10/02/2013] [Accepted: 10/04/2013] [Indexed: 02/08/2023]
Abstract
Glypican-3 (GPC3) is an emerging therapeutic target in hepatocellular carcinoma (HCC), even though the biological function of GPC3 remains elusive. Currently human (MDX-1414 and HN3) and humanized mouse (GC33 and YP7) antibodies that target GPC3 for HCC treatment are under different stages of preclinical or clinical development. Humanized mouse antibody GC33 is being evaluated in a phase II clinical trial. Human antibodies MDX-1414 and HN3 are under different stages of preclinical evaluation. Here, we summarize current evidence for GPC3 as a new target in liver cancer, discuss both its oncogenic function and its mode of actions for current antibodies, and evaluate potential challenges for GPC3-targeted anti-cancer therapies.
Collapse
Affiliation(s)
- Mingqian Feng
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Mitchell Ho
- Antibody Therapy Section, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
| |
Collapse
|
92
|
Taneja-Bageshwar S, Gumienny TL. Regulation of TGFβ superfamily signaling by two separable domains of glypican LON-2 in C. elegans. WORM 2013; 2:e23843. [PMID: 24778932 PMCID: PMC3875644 DOI: 10.4161/worm.23843] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Accepted: 01/31/2013] [Indexed: 12/30/2022]
Abstract
Regulated intercellular signaling is critical for the normal development and maintenance of multicellular organisms. Glypicans have been shown to regulate signaling by TGFβs, hedgehogs and Wnts, in several cellular contexts. Glypicans comprise a conserved family of heparan sulfated, glycosylphosphatidylinositol (GPI)-linked extracellular proteins. The structural complexity of glypicans may underlie their functional complexity. In a recent study31, we built on previous findings that one of the two C. elegans glypicans, LON-2, specifically inhibits signaling by the TGFβ superfamily member DBL-1. We tested the functional requirements of LON-2 protein core components and post-translational modifications for LON-2 activity. We provide the first evidence that two parts of a glypican can independently regulate TGFβ superfamily signaling in vivo: the N-terminal furin protease product and a C-terminal region containing heparan sulfate attachment sites. Furthermore, we show a protein-protein interaction motif is crucial for LON-2 activity in the N-terminal protein core, suggesting that LON-2 acts by serving as a scaffold for DBL-1 and an RGD-binding protein. In addition, we demonstrate specificity of glypican function by showing C. elegans GPN-1 does not functionally substitute for LON-2. This work reveals a molecular foundation for understanding the complexity and specificity of glypican function.
Collapse
Affiliation(s)
- Suparna Taneja-Bageshwar
- Department of Molecular and Cellular Medicine; College of Medicine; Texas A&M Health Science Center; College Station, TX USA
| | - Tina L Gumienny
- Department of Molecular and Cellular Medicine; College of Medicine; Texas A&M Health Science Center; College Station, TX USA
| |
Collapse
|
93
|
Li B, Liu H, Shang HW, Li P, Li N, Ding HG. Diagnostic value of glypican-3 in alpha fetoprotein negative hepatocellular carcinoma patients. Afr Health Sci 2013; 13:703-9. [PMID: 24250310 DOI: 10.4314/ahs.v13i3.26] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The prognosis of patients with hepatocellular carcinoma(HCC) is generally very poor with a 5-year survival rate of less than 15% since most of them are diagnosed clinically at their late stage. However, the differential diagnosis between alpha fetoprotein(AFP) negative HCC and cirrhotic nodules is still difficult. OBJECTIVES To evaluate the diagnostic value of glypican-3(GPC3) in patients with AFP negative hepatitis B related HCC. METHODS The liver tissue GPC3 (GPC3L) expression was tested from 426 for surgery and 179 of needle biopsies of hepatitis B related HCC patients using immunohistochemistry staining. Serum GPC3 (GPC3S) and AFP were also measured. RESULTS Among surgical HCC samples, 80.0% of GPC3L expression was positive, however, in paracarcinomatous and cirrhotic nodules were negative. In needle biopsy tissues, GPC3L positively expression was in 74.9%. The sensitivity of AFP>400 µg/L was 25.4%. The GPC3S >3.5 µg/L was determined as a positive. The area of ROC curve of GPC3S was 0.68(95% CI 0.56-0.79,P<0.05) in all HCC patients,0.81 (95% CI 0.62 -0. 98, P<0.05) in AFP greater or equal to 400 µg/L and 0.64 (95% CI 0.51-0.77, P=0.051) in AFP negative patients. The GPC3S was positive in 48.8% of patients with AFP negative. No difference was observed between GPC3L/GPC3S and serum AFP. CONCLUSIONS GPC3 may be helpful in improving diagnosis of HCC and in differentiating diagnosis between AFP negative HCC and cirrhotic nodules.
Collapse
Affiliation(s)
- B Li
- Department of Hepatology and Gastroenterology, Beijing You'An Hospital affiliated to Capital Medical University, 100069, China
| | | | | | | | | | | |
Collapse
|
94
|
Tada Y, Yoshikawa T, Shimomura M, Sawada Y, Sakai M, Shirakawa H, Nobuoka D, Nakatsura T. Analysis of cytotoxic T lymphocytes from a patient with hepatocellular carcinoma who showed a clinical response to vaccination with a glypican‑3‑derived peptide. Int J Oncol 2013; 43:1019-26. [PMID: 23903757 PMCID: PMC3829797 DOI: 10.3892/ijo.2013.2044] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 07/12/2013] [Indexed: 12/21/2022] Open
Abstract
Glypican-3 (GPC3), which is a carcinoembryonic antigen, is overexpressed in human hepatocellular carcinoma (HCC). Previously, we performed a phase I clinical trial of GPC3-derived peptide vaccination in patients with advanced HCC, and reported that GPC3 peptide vaccination is safe and has clinical efficacy. Moreover, we proposed that a peptide-specific CTL response is a predictive marker of overall survival in patients with HCC who receive peptide vaccination. In this study, we established GPC3-derived peptide-specific CTL clones from the PBMCs of an HLA-A
*
02:07-positive patient with HCC who was vaccinated with an HLA-A2-restricted GPC3 peptide vaccine and showed a clinical response in the phase I clinical trial. Established CTL clones were analyzed using the IFN-γ ELISPOT assay and a cytotoxicity assay. GPC3 peptide-specific CTL clones were established successfully from the PBMCs of the patient. One CTL clone showed cytotoxicity against cancer cell lines that expressed endogenously the GPC3 peptide. The results suggest that CTLs have high avidity, and that natural antigen-specific killing activity against tumor cells can be induced in a patient with HCC who shows a clinical response to vaccination with the GPC3
144–152
peptide.
Collapse
Affiliation(s)
- Yoshitaka Tada
- Division of Cancer Immunotherapy, Research Center for Innovative Oncology, National Cancer Center Hospital East, Kashiwa, Chiba 277‑8577, Japan
| | | | | | | | | | | | | | | |
Collapse
|
95
|
A comparison of glypican-3 with alpha-fetoprotein as a serum marker for hepatocellular carcinoma: a meta-analysis. J Cancer Res Clin Oncol 2013; 139:1417-24. [PMID: 23743582 DOI: 10.1007/s00432-013-1458-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/27/2013] [Indexed: 01/30/2023]
Abstract
BACKGROUNDS Glypican-3(GPC3) has been reported as one of the most promising serum markers for hepatocellular carcinoma (HCC), while several studies have conflicting results for the diagnostic accuracy between GPC3 and alpha-fetoprotein (AFP). METHODS Studies that explored the diagnostic value of GPC3 and AFP in HCC were searched in MEDLINE, EMBASE, PUBMED, the Cochrane Library and Chinese biomedical literature database (CBM). Sensitivity, specificity and other measures about the accuracy of serum GPC3 and AFP in the diagnosis of HCC were pooled using random effects models. Summary receiver operating characteristic curve (sROC) analysis was used to summarize the overall test performance. RESULTS Ten studies were included in our meta-analysis. The pooled sensitivity for AFP and GPC3 is 51.9% (95% confidence interval (CI) 0.47-0.56) and 59.2% (95% CI 0.55-0.63), respectively, while the pooled specificity for AFP and GPC3 is 94% (95% CI 92.1-95.6%) and 84.8% (95% CI 82-87.3%), respectively. The pooled diagnostic odds ratio (DOR) for AFP and GPC3 were 23.4 (95% CI 10.3-53.2) and 17.99 (95% CI 5.4-60.4), respectively. Area under sROC for both AFP and GPC3 is 0.81 (95% CI 0.77-0.84). CONCLUSIONS GPC3 is comparable to AFP as a serum marker for the diagnosis of HCC, combination of AFP and GPC3 can elevate the sensitivity of diagnosis.
Collapse
|
96
|
Lo RCL, Ng IOL. Hepatocellular tumors: immunohistochemical analyses for classification and prognostication. Chin J Cancer Res 2013; 23:245-53. [PMID: 23359751 DOI: 10.1007/s11670-011-0245-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 09/22/2009] [Indexed: 12/11/2022] Open
Abstract
Following the classification of hepatocellular nodules by the International Working Party in 1995 and further elaboration by the International Consensus Group for Hepatocellular Neoplasia in 2009, entities under the spectrum of hepatocellular nodules have been better characterized. Research work hence has been done to answer questions such as distinguishing high-grade dysplastic nodules from early hepatocellular carcinoma (HCC), delineating the tumor cell origin of HCC, identifying its prognostic markers, and subtyping hepatocellular adenomas. As a result, a copious amount of data at immunohistochemical and molecular levels has emerged. A panel of immunohistochemical markers including glypican-3, heat shock protein 70 and glutamine synthetase has been found to be of use in the diagnosis of small, well differentiated hepatocellular tumors and particularly of HCC. The use of liver fatty acid binding protein (L-FABP), β-catenin, glutamine synthetase, serum amyloid protein and C-reactive protein is found to be helpful in the subtyping of hepatocellular adenomas. The role of tissue biomarkers for prognostication in HCC and the use of biomarkers in subclassifying HCC based on tumor cell origin are also discussed.
Collapse
Affiliation(s)
- Regina Cheuk-Lam Lo
- Department of Pathology and State Key Laboratory for Liver Research, the University of Hong Kong, Hong Kong, China
| | | |
Collapse
|
97
|
Therapeutically targeting glypican-3 via a conformation-specific single-domain antibody in hepatocellular carcinoma. Proc Natl Acad Sci U S A 2013; 110:E1083-91. [PMID: 23471984 DOI: 10.1073/pnas.1217868110] [Citation(s) in RCA: 142] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Glypican-3 (GPC3) has emerged as a candidate therapeutic target in hepatocellular carcinoma (HCC), but the oncogenic role of GPC3 in HCC is poorly understood. Here, we report a human heavy-chain variable domain antibody, HN3, with high affinity (Kd = 0.6 nM) for cell-surface-associated GPC3 molecules. The human antibody recognized a conformational epitope that requires both the amino and carboxy terminal domains of GPC3. HN3 inhibited proliferation of GPC3-positive cells and exhibited significant inhibition of HCC xenograft tumor growth in nude mice. The underlying mechanism of HN3 action may involve cell-cycle arrest at G1 phase through Yes-associated protein signaling. This study suggests a previously unrecognized mechanism for GPC3-targeted cancer therapy.
Collapse
|
98
|
Abu El Makarem M. An overview of biomarkers for the diagnosis of hepatocellular carcinoma. HEPATITIS MONTHLY 2012; 12:e6122. [PMID: 23162601 PMCID: PMC3496856 DOI: 10.5812/hepatmon.6122] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Revised: 06/10/2012] [Accepted: 07/01/2012] [Indexed: 12/11/2022]
Abstract
CONTEXT Primary liver cancer is one of the most common and deadly malignant neoplasms worldwide. The incidence and mortality rates for hepatocellular carcinoma (HCC) are virtually identical, reflecting the poor overall survival of patients with this kind of tumor. Effective therapies mostly achieved if the HCC diagnosis is made at early stages of the tumor. Surveillance tests include serologic and radiologic examinations. EVIDENCE ACQUISITION In this review, an overview of biomarkers for the diagnosis of HCC and future challenges in this popular field has been presented. RESULTS Serum tumor markers, such as alpha-fetoprotein (AFP) and des-gammacarboxy prothrombin (DCP) are commonly used for the surveillance, but their roles have been intensely debated despite the existence of sensitive radiologic tests. Most HCC-related cancer biomarkers are involved in chronic inflammation and cancer. These biomarkers, according to their biologic characteristics are primarily divided into three groups including onco-foetal protein, stress protein, and post-translational modification. CONCLUSIONS Because of the limitations of traditional HCC biomarkers, exploration for novel biomarkers for the diagnosis of HCC is an evolving process.
Collapse
Affiliation(s)
- Mona Abu El Makarem
- Internal Medicine Department, Minia University, Minia, Egypt
- Corresponding author: Mona Abu El Makarem, Medical School, Minia University, Minia 61111, Minia, Egypt. Tel.: +20-862366553, Fax: +20-86242813, E-mail:
| |
Collapse
|
99
|
Taneja-Bageshwar S, Gumienny TL. Two functional domains in C. elegans glypican LON-2 can independently inhibit BMP-like signaling. Dev Biol 2012; 371:66-76. [PMID: 22922164 DOI: 10.1016/j.ydbio.2012.08.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 07/25/2012] [Accepted: 08/12/2012] [Indexed: 12/21/2022]
Abstract
Glypicans are multifunctional proteoglycans with regulatory roles in several intercellular signaling pathways. Here, we examine the functional requirements for glypican regulation of bone morphogenetic protein (BMP)-mediated body length in C. elegans. We provide evidence that two parts of C. elegans glypican LON-2 can independently inhibit BMP signaling in vivo: the N-terminal furin protease product and the C-terminal region containing heparan sulfate attachment sequences. While the C-terminal protease product is dispensable for LON-2 minimal core protein activity, it does affect the localization of LON-2. Cleavage of LON-2 into two parts at the conserved furin protease site is not required for LON-2 to inhibit BMP-like signaling. The glycosyl-phosphatidylinositol (GPI) membrane anchor is also not absolutely required for LON-2 activity. Finally, we show that an RGD protein-protein interaction motif in the LON-2 N-terminal domain is necessary for LON-2 core protein activity, suggesting that LON-2 inhibits BMP signaling by acting as a scaffold for BMP and an RGD-binding protein.
Collapse
Affiliation(s)
- Suparna Taneja-Bageshwar
- Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M Health Science Center, College Station, TX 77843-1114, USA
| | | |
Collapse
|
100
|
Rudd TR, Hughes A, Holman J, Solari V, Ferreira EDO, Domingues RMCP, Yates EA. Heparan sulphate, its derivatives and analogues share structural characteristics that can be exploited, particularly in inhibiting microbial attachment. Braz J Med Biol Res 2012; 45:386-91. [PMID: 22473323 PMCID: PMC3854285 DOI: 10.1590/s0100-879x2012007500048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Accepted: 03/20/2012] [Indexed: 12/13/2022] Open
Abstract
Heparan sulphate (HS) and the related polysaccharide, heparin, exhibit conformational and charge arrangement properties, which provide a degree of redundancy allowing several seemingly distinct sequences to exhibit the same activity. This can also be mimicked by other sulphated polysaccharides, both in overall effect and in the details of interactions and structural consequences of interactions with proteins. Together, these provide a source of active compounds suitable for further development as potential drugs. These polysaccharides also possess considerable size, which bestows upon them an additional useful property: the capability of disrupting processes comprising many individual interactions, such as those characterising the attachment of microbial pathogens to host cells. The range of involvement of HS in microbial attachment is reviewed and examples, which include viral, bacterial and parasitic infections and which, in many cases, are now being investigated as potential targets for intervention, are identified.
Collapse
Affiliation(s)
- T R Rudd
- Istituto di Chimica e Biochimica, Milano, Italy
| | | | | | | | | | | | | |
Collapse
|