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Tripathi AS, Zaki MEA, Al-Hussain SA, Dubey BK, Singh P, Rind L, Yadav RK. Material matters: exploring the interplay between natural biomaterials and host immune system. Front Immunol 2023; 14:1269960. [PMID: 37936689 PMCID: PMC10627157 DOI: 10.3389/fimmu.2023.1269960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/02/2023] [Indexed: 11/09/2023] Open
Abstract
Biomaterials are widely used for various medical purposes, for instance, implants, tissue engineering, medical devices, and drug delivery systems. Natural biomaterials can be obtained from proteins, carbohydrates, and cell-specific sources. However, when these biomaterials are introduced into the body, they trigger an immune response which may lead to rejection and failure of the implanted device or tissue. The immune system recognizes natural biomaterials as foreign substances and triggers the activation of several immune cells, for instance, macrophages, dendritic cells, and T cells. These cells release pro-inflammatory cytokines and chemokines, which recruit other immune cells to the implantation site. The activation of the immune system can lead to an inflammatory response, which can be beneficial or detrimental, depending on the type of natural biomaterial and the extent of the immune response. These biomaterials can also influence the immune response by modulating the behavior of immune cells. For example, biomaterials with specific surface properties, such as charge and hydrophobicity, can affect the activation and differentiation of immune cells. Additionally, biomaterials can be engineered to release immunomodulatory factors, such as anti-inflammatory cytokines, to promote a tolerogenic immune response. In conclusion, the interaction between biomaterials and the body's immune system is an intricate procedure with potential consequences for the effectiveness of therapeutics and medical devices. A better understanding of this interplay can help to design biomaterials that promote favorable immune responses and minimize adverse reactions.
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Affiliation(s)
| | - Magdi E A Zaki
- Department of Chemistry, Faculty of Science, Imam Mohammad lbn Saud Islamic University, Riyadh, Saudi Arabia
| | - Sami A Al-Hussain
- Department of Chemistry, Faculty of Science, Imam Mohammad lbn Saud Islamic University, Riyadh, Saudi Arabia
| | - Bidhyut Kumar Dubey
- Department of Pharmaceutical Chemistry, Era College of Pharmacy, Era University, Lucknow, India
| | - Prabhjot Singh
- Department of Pharmacology, Era College of Pharmacy, Era University, Lucknow, India
| | - Laiba Rind
- Department of Pharmacology, Era College of Pharmacy, Era University, Lucknow, India
| | - Rajnish Kumar Yadav
- Department of Pharmacology, Era College of Pharmacy, Era University, Lucknow, India
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Li S, Hu J, Li G, Mai H, Gao Y, Liang B, Wu H, Guo J, Duan Y. Epigenetic regulation of LINC01270 in breast cancer progression by mediating LAMA2 promoter methylation and MAPK signaling pathway. Cell Biol Toxicol 2023; 39:1359-1375. [PMID: 36241925 DOI: 10.1007/s10565-022-09763-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 08/26/2022] [Indexed: 11/02/2022]
Abstract
Application of long non-coding RNAs (lncRNAs) for modulation of breast cancer (BC) has attracted much attention. Here, we probed into the role and underlying mechanism of long intergenic non-coding RNA 01270 (LINC01270) in BC. With the help of bioinformatics tools, we identified laminin subunit alpha 2 (LAMA2) as a BC-related differentially expressed gene to discern the effect of LAMA2 in BC cells. LAMA2 was initially poorly expressed while LINC01270 was highly expressed in BC. BC cells were subsequently treated with sh-LINC01270 or/and sh-LAMA2 for exploration of their regulatory mechanism in BC, which unfolded that LINC01270 inhibition up-regulated LAMA2 and inactivated the MAPK signaling pathway to suppress malignant characteristics of BC cells. Functional assays demonstrated that LINC01270 bound to DNMT1, DNMT3a, and DNMT3b promoted the methylation of CpG islands in LAMA2 promoter and inhibited the LAMA2 expression. Moreover, our data suggested that LAMA2 suppressed MAPK signaling pathway to inhibit BC cell malignant characteristics. The in vitro results were re-produced with the help of the in vivo experimentations. In conclusion, LINC01270 silencing inhibited the methylation of LAMA2 promoter to suppress the activation of MAPK signaling pathway, which subsequently restrained the BC progression. 1, Overexpression of LAMA2 inhibits malignant features of BC cells. 2, LINC01270 promotes LAMA2 promoter methylation by recruiting DNMTs to the LAMA2 promoter region. 3, 5-aza-dc reverses the promotion of LAMA2 promoter methylation by LINC01270. 4, LAMA2 inhibits malignant features of BC cells by suppressing the activation of MAPK signaling pathway.
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Affiliation(s)
- Shaoying Li
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China.
| | - Jiamei Hu
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Guisen Li
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Huifen Mai
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Yinfei Gao
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Bichan Liang
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Huacong Wu
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Jianling Guo
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
| | - Yuan Duan
- Department of Thyroid and Breast Surgery, Baoan Maternal and Child Health Hospital, Jinan University, Shenzhen, 518000, Guangdong Province, People's Republic of China
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Liu D, Heij LR, Czigany Z, Dahl E, Lang SA, Ulmer TF, Luedde T, Neumann UP, Bednarsch J. The role of tumor-infiltrating lymphocytes in cholangiocarcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2022; 41:127. [PMID: 35392957 PMCID: PMC8988317 DOI: 10.1186/s13046-022-02340-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/23/2022] [Indexed: 12/18/2022]
Abstract
Cholangiocarcinoma (CCA) is the second most common primary liver cancer and associated with a dismal prognosis due to the lack of an efficient systemic therapy. In contrast to other cancers, new immunotherapies have demonstrated unsatisfactory results in clinical trials, underlining the importance of a deeper understanding of the special tumor microenvironment of CCA and the role of immune cells interacting with the tumor. Tumor-infiltrating lymphocytes (TILs) are an important component of the adaptive immune system and the foundation of current immunotherapy. Therefore, the aim of this systemic review is to summarize the current literature focusing on the proportions and distribution, molecular pathogenesis, prognostic significance of TILs and their role in immunotherapy for CCA patients. In CCA, CD8+ and CD4+ T lymphocytes represent the majority of TILs and are mostly sequestered around the cancer cells. CD20+ B lymphocytes and Natural Killer (NK) cells are less frequent. In contrast, Foxp3+ cells (regulatory T cells, Tregs) are observed to infiltrate into the tumor. In the immune microenvironment of CCA, cancer cells and stromal cells such as TAMs, TANs, MSDCs and CAFs inhibit the immune protection function of TILs by secreting factors like IL-10 and TGF-β. With respect to molecular pathogenesis, the Wnt/-catenin, TGF-signaling routes, aPKC-i/P-Sp1/Snail Signaling, B7-H1/PD-1Pathway and Fas/FasL signaling pathways are connected to the malignant potential and contributed to tumor immune evasion by increasing TIL apoptosis. Distinct subtypes of TILs show different prognostic implications for the long-term outcome in CCA. Although there are occasionally conflicting results, CD8+ and CD4+ T cells, and CD20+ B cells are positively correlated with the oncological prognosis of CCA, while a high number of Tregs is very likely associated with worse overall survival. TILs also play a major role in immunotherapy for CCA. In summary, the presence of TILs may represent an important marker for the prognosis and a potential target for novel therapy, but more clinical and translational data is needed to fully unravel the importance of TILs in the treatment of CCA.
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Affiliation(s)
- Dong Liu
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Lara Rosaline Heij
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany.,Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Zoltan Czigany
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Edgar Dahl
- Institute of Pathology, University Hospital RWTH Aachen, Aachen, Germany
| | - Sven Arke Lang
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Tom Florian Ulmer
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
| | - Tom Luedde
- Department of Gastroenterology, Hepatology and Infectious Diseases, University Hospital Heinrich Heine University Duesseldorf, Duesseldorf, Germany
| | - Ulf Peter Neumann
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany. .,Department of Surgery, Maastricht University Medical Center (MUMC), Maastricht, The Netherlands.
| | - Jan Bednarsch
- Department of Surgery and Transplantation, University Hospital RWTH Aachen, Pauwelsstrasse 30, 52074, Aachen, Germany
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Bhattacharya A, Limone A, Napolitano F, Cerchia C, Parisi S, Minopoli G, Montuori N, Lavecchia A, Sarnataro D. APP Maturation and Intracellular Localization Are Controlled by a Specific Inhibitor of 37/67 kDa Laminin-1 Receptor in Neuronal Cells. Int J Mol Sci 2020; 21:ijms21051738. [PMID: 32143270 PMCID: PMC7084285 DOI: 10.3390/ijms21051738] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/28/2020] [Accepted: 02/29/2020] [Indexed: 12/11/2022] Open
Abstract
Amyloid precursor protein (APP) is processed along both the nonamyloidogenic pathway preventing amyloid beta peptide (Aβ) production and the amyloidogenic pathway, generating Aβ, whose accumulation characterizes Alzheimer’s disease. Items of evidence report that the intracellular trafficking plays a key role in the generation of Aβ and that the 37/67 kDa LR (laminin receptor), acting as a receptor for Aβ, may mediate Aβ-pathogenicity. Moreover, findings indicating interaction between the receptor and the key enzymes involved in the amyloidogenic pathway suggest a strong link between 37/67 kDa LR and APP processing. We show herein that the specific 37/67 kDa LR inhibitor, NSC48478, is able to reversibly affect the maturation of APP in a pH-dependent manner, resulting in the partial accumulation of the immature APP isoforms (unglycosylated/acetylated forms) in the endoplasmic reticulum (ER) and in transferrin-positive recycling endosomes, indicating alteration of the APP intracellular trafficking. These effects reveal NSC48478 inhibitor as a novel small molecule to be tested in disease conditions, mediated by the 37/67 kDa LR and accompanied by inactivation of ERK1/2 (extracellular signal-regulated kinases) signalling and activation of Akt (serine/threonine protein kinase) with consequent inhibition of GSK3β.
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Affiliation(s)
- Antaripa Bhattacharya
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (A.B.); (A.L.); (S.P.); (G.M.)
| | - Adriana Limone
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (A.B.); (A.L.); (S.P.); (G.M.)
| | - Filomena Napolitano
- Department of Translational Medical Sciences, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (F.N.); (N.M.)
| | - Carmen Cerchia
- Department of Pharmacy, “Drug Discovery Lab”, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (C.C.); (A.L.)
| | - Silvia Parisi
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (A.B.); (A.L.); (S.P.); (G.M.)
| | - Giuseppina Minopoli
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (A.B.); (A.L.); (S.P.); (G.M.)
| | - Nunzia Montuori
- Department of Translational Medical Sciences, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (F.N.); (N.M.)
| | - Antonio Lavecchia
- Department of Pharmacy, “Drug Discovery Lab”, University of Naples “Federico II”, Via D. Montesano 49, 80131 Naples, Italy; (C.C.); (A.L.)
| | - Daniela Sarnataro
- Department of Molecular Medicine and Medical Biotechnology, University of Naples “Federico II”, Via S. Pansini 5, 80131 Naples, Italy; (A.B.); (A.L.); (S.P.); (G.M.)
- Correspondence:
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Vania L, Morris G, Otgaar TC, Bignoux MJ, Bernert M, Burns J, Gabathuse A, Singh E, Ferreira E, Weiss SFT. Patented therapeutic approaches targeting LRP/LR for cancer treatment. Expert Opin Ther Pat 2019; 29:987-1009. [PMID: 31722579 DOI: 10.1080/13543776.2019.1693543] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Introduction: The ubiquitously expressed 37 kDa/67 kDa high-affinity laminin receptor (laminin receptor precursor/laminin receptor, LRP/LR) is a protein found to play several roles within cells. The receptor is located in the nucleus, cytosol and the cell surface. LRP/LR mediates cell proliferation, cell adhesion and cell differentiation. As a result, it is seen to enhance tumor angiogenesis as well as invasion and adhesion, key steps in the metastatic cascade of cancer. Recent findings have shown that LRP/LR is involved in the maintenance of cell viability through apoptotic evasion, allowing for tumor progression. Thus, several patented therapeutic approaches targeting the receptor for the prevention and treatment of cancer have emerged.Areas covered: The several roles that LRP/LR plays in cancer progression as well as an overview of the current therapeutic patented strategies targeting LRP/LR and cancer to date.Expert opinion: Small molecule inhibitors, monoclonal antibodies and small interfering RNAs might act used as powerful tools in preventing tumor angiogenesis and metastasis through the induction of apoptosis and telomere erosion in several cancers. This review offers an overview of the roles played by LRP/LR in cancer progression, while providing novel patented approaches targeting the receptor as potential therapeutic routes for the treatment of cancer as well as various other diseases.
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Affiliation(s)
- Leila Vania
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Gavin Morris
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Tyrone C Otgaar
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Monique J Bignoux
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Martin Bernert
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Jessica Burns
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Anne Gabathuse
- Wits Commercial Enterprise, The Commercial Development Hub, Johannesburg, Republic of South Africa
| | - Elvira Singh
- School of Public Health, University of the Witwatersrand, Johannesburg, Republic of South Africa
| | - Eloise Ferreira
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
| | - Stefan F T Weiss
- School of Molecular and Cell Biology, University of the Witwatersrand, Wits, Johannesburg, Republic of South Africa
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Li X, Dong M, Zhou J, Zhu D, Zhao J, Sheng W. C6orf106 accelerates pancreatic cancer cell invasion and proliferation via activating ERK signaling pathway. Mol Cell Biochem 2018; 454:87-95. [PMID: 30311108 DOI: 10.1007/s11010-018-3455-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 10/05/2018] [Indexed: 12/19/2022]
Abstract
C6orf106 was highly expressed in lung and breast cancer, and proposed as clinicopathologic factor for the development of those types of cancer. However, its expression in pancreatic cancer and the mechanism that C6orf106 functions as an oncogene has not been confirmed. In the present study, we found that C6orf106 was also up-regulated in pancreatic cancer tissues and cell lines. Furthermore, C6orf106 expression was associated with advanced T stage (P = 0.010), positive regional lymph node metastasis (P = 0.012), and advanced TNM stage (P = 0.006). In vitro experiments also showed that C6orf106 served a tumor enhancer in pancreatic cancer, through increasing the expression of Snail, Cyclin D1 and Cyclin E1, and reducing the expression of E-cadherin via activating extracellular-signal-regulated kinase (ERK)- p90-kDa ribosomal S6 kinases (P90RSK) signaling pathway. The addition of ERK inhibitor PD98059 counteracted the upregulation of Snail, Cyclin D1 and Cyclin E1, and restored the expression of E-cadherin, which indicated that C6orf106 was an upstream factor of ERK signaling pathway. Taken together, the present study indicates that C6orf106 facilitates invasion and proliferation of pancreatic cancer cells, likely via activating ERK-P90RSK signaling pathway.
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Affiliation(s)
- Xin Li
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China
| | - Ming Dong
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China.
| | - Jianping Zhou
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China
| | - Dehua Zhu
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China
| | - Jinbo Zhao
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China
| | - Weiwei Sheng
- Department of General Surgery, Gastrointestinal Surgery, The First Hospital, China Medical University, No. 155 Nanjing Bei, Heping District, Shenyang, 110001, China
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Tian F, Chen J, Zheng S, Li D, Zhao X, Jiang P, Li J, Wang S. miR-124 targets GATA6 to suppress cholangiocarcinoma cell invasion and metastasis. BMC Cancer 2017; 17:175. [PMID: 28270130 PMCID: PMC5339982 DOI: 10.1186/s12885-017-3166-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 03/02/2017] [Indexed: 01/03/2023] Open
Abstract
Background Our previous study showed that GATA6 plays important roles in cholangiocarcinoma (CCA) cell invasion and metastasis. However, the regulation mechanism of GATA6 in CCA is not clear. In this study, we studied the potential function of miR-124 in CCA and the mechanism of GATA6 regulation. Methods The expression levels of miR-124 and GATA6 in cancerous tissues from 57 CCA patients was detected by RT-PCR and IHC. The impact of miR-124 on GATA6 expression in CCA cells was evaluated using cell transfection, xenotransplantation into nude mice and a luciferase reporter assay. Results miR-124 was decreased in 57 cancerous tissue samples compared with 38 matched paracancerous samples. The miR-124 level was inversely associated with lymph node involvement and distant metastasis. miR-124 significantly inhibited invasion and migration of CCA cells in vitro. Furthermore, miR-124 inhibited CCA cell metastasis in nude mice. miR-124 inhibited the luciferase activity of reporter genes containing the wild-type GATA6 3′-UTR, which was abrogated by mutation of the binding site. The protein levels of GATA6 were negatively regulated by miR-124. miR-124 expression was inversely associated with GATA6 in 57 cancerous samples. The miR-124-induced suppression of CCA invasion was abrogated by remedial expression of GATA6. GATA6 expression was decreased by miR-124 overexpression in liver masses from nude mice. Conclusions Our data suggested that miR-124 decreases GATA6 expression by targeting its 3′-UTR, which in turn inhibits CCA invasion and metastasis. Electronic supplementary material The online version of this article (doi:10.1186/s12885-017-3166-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Feng Tian
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Jian Chen
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Shuguo Zheng
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Dajiang Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Xin Zhao
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Peng Jiang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
| | - Jianwei Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China.
| | - Shuguang Wang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, No. 29 Gaotanyan Street, Shapingba District, Chongqing, 400038, China
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Li Y, Li D, Chen J, Wang S. A polysaccharide from Pinellia ternata inhibits cell proliferation and metastasis in human cholangiocarcinoma cells by targeting of Cdc42 and 67kDa Laminin Receptor (LR). Int J Biol Macromol 2016; 93:520-525. [PMID: 27576948 DOI: 10.1016/j.ijbiomac.2016.08.069] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 08/14/2016] [Accepted: 08/25/2016] [Indexed: 12/13/2022]
Abstract
In this study, we isolated and purified a polysaccharide (PTPA) from the tubers of Pinellia ternate. We aimed to evaluate the cytotoxic effects of PTPA on human cholangiocarcinoma (CCA) cell lines and to identify the underlying molecular mechanism. PTPA at the dose from 25 to 200μg/mL showed significant inhibitory effect on the proliferation of four cancer cell lines (SNU-245, CL-6, Sk-ChA-1 and MZ-ChA-1), among which Sk-ChA-1 was a most sensitive cell line to PTPA treatment via induction of apoptosis. Interestingly, RNA interference of Sk-ChA-1 cells with 67LR or Cdc42-targeted shRNAs resulted a similar potency in decreasing cell viability and causing apoptotic death. Moreover, PTPA (100μg/mL) or 67LR or Cdc42 special shRNAs increased the ratio of pro-apoptotic Bax to anti-apoptotic Bcl-2, induced the activation of caspase-9 and caspase-3, but not caspsase-8, and inhibited the expression of 67LR or Cdc42 protein in Sk-ChA-1 cells. Taken together, the inhibitory effect of PTPA on the cell growth of Sk-ChA-1 cells was at least in part mediated via the activation of the intrinsic mitochondrial apoptotic pathway and the downregulation of 67LR or Cdc42 protein expression. Thus, PTPA may be developed as a promising candidate for chemopreventive agent in the prevention and treatment of human CCA.
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Affiliation(s)
- Yong Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Dajiang Li
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Jian Chen
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Shuguang Wang
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China.
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9
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Fadel FI, Elshamaa MF, Salah A, Nabhan M, Rasheed M, Kamel S, Kandil D, Thabet EH. Fas/Fas Ligand pathways gene polymorphisms in pediatric renal allograft rejection. Transpl Immunol 2016; 37:28-34. [PMID: 27109035 DOI: 10.1016/j.trim.2016.04.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 03/28/2016] [Accepted: 04/20/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND An essential milestone in pediatric transplantation is to find noninvasive biomarkers to monitor acute rejection (AR). In this retrospective (Case-control) study, we examined the role of Fas -670A/G and Fas Ligand (FasL) -843C/T gene polymorphisms in allograft nephropathy in pediatric renal transplant recipients. METHODS In 47 pediatric kidney transplant recipients and 20 healthy controls, Fas -670A/G and FasL -843C/T gene polymorphisms as well as serum soluble Fas Ligand level (sFasL) were measured. RESULTS Serum sFasL levels were significantly higher in transplant recipients children than that in controls (548.25±298.64pg/ml vs 143.17±44.55pg/ml, p=0.0001). There was no significant difference between patients with AR and those without AR in regards to serum sFasL levels (567.70±279.87pg/ml vs 507.85±342.80pg/ml, p=0.56). Fas -670A/G genotypes or alleles were not significantly different between controls and transplant recipients and among transplant recipients with and without AR. (P>0.05 for all). FasL -843C/T genotypes were not different between transplant recipients and controls and among transplant recipients with and without AR (P>0.05 for all). However, Frequency of C allele in transplant patients was significantly higher than that in the control group (44.68% vs 25%, P=0.03). FasL -843C/T alleles were significantly different between patients with and without AR (P=0.03). The percentages of C allele were higher in children with AR (58.82% vs 36.67%). We found that serum FasL and serum creatinine were variables that were independently associated with AR. CONCLUSION This study suggests that FasL gene polymorphisms in peripheral blood might be accurate in detecting cellular AR.
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Affiliation(s)
- Fatina I Fadel
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | | | - Ahmed Salah
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Marwa Nabhan
- Pediatric Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
| | - Maha Rasheed
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Solaf Kamel
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Dina Kandil
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt.
| | - Eman H Thabet
- Clinical & Chemical Pathology Department, National Research Centre, Cairo, Egypt
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Narayanan KB, Ali M, Barclay BJ, Cheng QS, D'Abronzo L, Dornetshuber-Fleiss R, Ghosh PM, Gonzalez Guzman MJ, Lee TJ, Leung PS, Li L, Luanpitpong S, Ratovitski E, Rojanasakul Y, Romano MF, Romano S, Sinha RK, Yedjou C, Al-Mulla F, Al-Temaimi R, Amedei A, Brown DG, Ryan EP, Colacci A, Hamid RA, Mondello C, Raju J, Salem HK, Woodrick J, Scovassi AI, Singh N, Vaccari M, Roy R, Forte S, Memeo L, Kim SY, Bisson WH, Lowe L, Park HH. Disruptive environmental chemicals and cellular mechanisms that confer resistance to cell death. Carcinogenesis 2015; 36 Suppl 1:S89-110. [PMID: 26106145 DOI: 10.1093/carcin/bgv032] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Cell death is a process of dying within biological cells that are ceasing to function. This process is essential in regulating organism development, tissue homeostasis, and to eliminate cells in the body that are irreparably damaged. In general, dysfunction in normal cellular death is tightly linked to cancer progression. Specifically, the up-regulation of pro-survival factors, including oncogenic factors and antiapoptotic signaling pathways, and the down-regulation of pro-apoptotic factors, including tumor suppressive factors, confers resistance to cell death in tumor cells, which supports the emergence of a fully immortalized cellular phenotype. This review considers the potential relevance of ubiquitous environmental chemical exposures that have been shown to disrupt key pathways and mechanisms associated with this sort of dysfunction. Specifically, bisphenol A, chlorothalonil, dibutyl phthalate, dichlorvos, lindane, linuron, methoxychlor and oxyfluorfen are discussed as prototypical chemical disruptors; as their effects relate to resistance to cell death, as constituents within environmental mixtures and as potential contributors to environmental carcinogenesis.
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Affiliation(s)
- Kannan Badri Narayanan
- Department of Chemistry and Biochemistry, Yeungnam University, Gyeongsan 712-749, South Korea, Sultan Zainal Abidin University, Malaysia, Plant Biotechnologies Inc, St. Albert AB, Canada, Computer Science Department, Southern Illinois University, Carbondale, IL 62901, USA, Department of Urology, University of California Davis, Sacramento, CA 95817, USA, Department of Pharmacology and Toxicology, University of Vienna, Austria, University of Puerto Rico, Medical Sciences Campus, School of Public Health, Nutrition Program, San Juan Puerto Rico 00936-5067, USA, Department of Anatomy, College of Medicine, Yeungnam University, Daegu, 705-717, South Korea, School of Biomedical Science, The Chinese University Of Hong Kong, Hong Kong, China, Siriraj Center of Excellence for Stem Cell Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand, Department of Otolaryngology/Head and Neck Surgery, Head and Neck Cancer Research Division, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA, Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA, Department of Molecular Medicine and Medical Biotechnology, Federico II University of Naples, 80131 Naples, Italy, Department of Molecular and Experimental Medicine, MEM 180, The Scripps Research Institute, La Jolla, CA 92037, USA, Department of Biology, Jackson State University, Jackson, MS 39217, USA, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Experimental and Clinical Medicine, University of Firenze, Firenze, 50134, Italy, Department of Environmental and Radiological Health Sciences, Colorado state University/ Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna, 40126, Italy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Se
| | - Manaf Ali
- Sultan Zainal Abidin University, Malaysia
| | | | - Qiang Shawn Cheng
- Computer Science Department, Southern Illinois University, Carbondale, IL 62901, USA
| | - Leandro D'Abronzo
- Department of Urology, University of California Davis, Sacramento, CA 95817, USA
| | | | - Paramita M Ghosh
- Department of Urology, University of California Davis, Sacramento, CA 95817, USA
| | - Michael J Gonzalez Guzman
- University of Puerto Rico, Medical Sciences Campus, School of Public Health, Nutrition Program, San Juan Puerto Rico 00936-5067, USA
| | - Tae-Jin Lee
- Department of Anatomy, College of Medicine, Yeungnam University, Daegu, 705-717, South Korea
| | - Po Sing Leung
- School of Biomedical Science, The Chinese University Of Hong Kong, Hong Kong, China
| | - Lin Li
- School of Biomedical Science, The Chinese University Of Hong Kong, Hong Kong, China
| | - Suidjit Luanpitpong
- Siriraj Center of Excellence for Stem Cell Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Edward Ratovitski
- Department of Otolaryngology/Head and Neck Surgery, Head and Neck Cancer Research Division, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA
| | - Yon Rojanasakul
- Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA
| | - Maria Fiammetta Romano
- Department of Molecular Medicine and Medical Biotechnology, Federico II University of Naples, 80131 Naples, Italy
| | - Simona Romano
- Department of Molecular Medicine and Medical Biotechnology, Federico II University of Naples, 80131 Naples, Italy
| | - Ranjeet K Sinha
- Department of Molecular and Experimental Medicine, MEM 180, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Clement Yedjou
- Department of Biology, Jackson State University, Jackson, MS 39217, USA
| | - Fahd Al-Mulla
- Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | | | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze, 50134, Italy
| | - Dustin G Brown
- Department of Environmental and Radiological Health Sciences, Colorado state University/ Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences, Colorado state University/ Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Annamaria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna, 40126, Italy
| | - Roslida A Hamid
- Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Chiara Mondello
- Institute of Molecular Genetics, National Research Council, Pavia, 27100, Italy
| | - Jayadev Raju
- Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario, K1A0K9, Canada
| | - Hosni K Salem
- Urology Department, Kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo, 12515, Egypt
| | - Jordan Woodrick
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, 20057, USA
| | - A Ivana Scovassi
- Institute of Molecular Genetics, National Research Council, Pavia, 27100, Italy
| | - Neetu Singh
- Advenced Molecular Science Research Centre, King George's Medical University, Lucknow, Uttar Pradesh, 226003, India
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna, 40126, Italy
| | - Rabindra Roy
- Molecular Oncology Program, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, 20057, USA
| | - Stefano Forte
- Mediterranean Institute of Oncology, Viagrande, 95029, Italy
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, Viagrande, 95029, Italy
| | - Seo Yun Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul 139-706, South Korea
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Science Center, Oregon State University, Corvallis, OR 97331, USA and
| | - Leroy Lowe
- Getting to Know Cancer, Truro, Nova Scotia, Canada
| | - Hyun Ho Park
- Department of Chemistry and Biochemistry, Yeungnam University, Gyeongsan 712-749, South Korea, Sultan Zainal Abidin University, Malaysia, Plant Biotechnologies Inc, St. Albert AB, Canada, Computer Science Department, Southern Illinois University, Carbondale, IL 62901, USA, Department of Urology, University of California Davis, Sacramento, CA 95817, USA, Department of Pharmacology and Toxicology, University of Vienna, Austria, University of Puerto Rico, Medical Sciences Campus, School of Public Health, Nutrition Program, San Juan Puerto Rico 00936-5067, USA, Department of Anatomy, College of Medicine, Yeungnam University, Daegu, 705-717, South Korea, School of Biomedical Science, The Chinese University Of Hong Kong, Hong Kong, China, Siriraj Center of Excellence for Stem Cell Research, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand, Department of Otolaryngology/Head and Neck Surgery, Head and Neck Cancer Research Division, Johns Hopkins University School of Medicine, Baltimore, MD 21231, USA, Department of Pharmaceutical Sciences, Mary Babb Randolph Cancer Center, West Virginia University, Morgantown, WV 26506, USA, Department of Molecular Medicine and Medical Biotechnology, Federico II University of Naples, 80131 Naples, Italy, Department of Molecular and Experimental Medicine, MEM 180, The Scripps Research Institute, La Jolla, CA 92037, USA, Department of Biology, Jackson State University, Jackson, MS 39217, USA, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Experimental and Clinical Medicine, University of Firenze, Firenze, 50134, Italy, Department of Environmental and Radiological Health Sciences, Colorado state University/ Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna, 40126, Italy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Se
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Hong H, Zhou T, Fang S, Jia M, Xu Z, Dai Z, Li C, Li S, Li L, Zhang T, Qi W, Bardeesi ASA, Yang Z, Cai W, Yang X, Gao G. Pigment epithelium-derived factor (PEDF) inhibits breast cancer metastasis by down-regulating fibronectin. Breast Cancer Res Treat 2014; 148:61-72. [PMID: 25284724 DOI: 10.1007/s10549-014-3154-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 09/24/2014] [Indexed: 11/29/2022]
Abstract
Pigment epithelium-derived factor (PEDF) plays an important role in the tumor growth and metastasis inhibition. It has been reported that PEDF expression is significantly reduced in breast cancer, and associated with disease progression and poor patient outcome. However, the exact mechanism of PEDF on breast cancer metastasis including liver and lung metastasis remains unclear. The present study aims to reveal the impact of PEDF on breast cancer. The orthotopic tumor mice model inoculated by MDA-MB-231 cells stably expressing PEDF or control cells was used to assess liver and lung metastasis of breast cancer. In vitro, migration and invasion experiments were used to detect the metastatic abilities of MDA-MB-231 and SKBR3 breast cancer cells with or without overexpression of PEDF. The metastatic-related molecules including EMT makers, fibronectin, and p-AKT and p-ERK were detected by qRT-PCR, Western blot, and Fluorescent immunocytochemistry. PEDF significantly inhibited breast cancer growth and metastasis in vivo and in vitro. Mechanically, PEDF inhibited breast cancer cell migration and invasion by down-regulating fibronectin and subsequent MMP2/MMP9 reduction via p-ERK and p-AKT signaling pathways. However, PEDF had no effect on EMT conversion in the breast cancer cells which was usually involved in cancer metastasis. Furthermore, the study showed that laminin receptor mediated the down-regulation of fibronectin by PEDF. These results reported for the first time that PEDF inhibited breast cancer metastasis by down-regulating fibronectin via laminin receptor/AKT/ERK pathway. Our findings demonstrated PEDF as a dual effector in limiting breast cancer growth and metastasis and highlighted a new avenue to block breast cancer progression.
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Affiliation(s)
- Honghai Hong
- Department of Biochemistry, Zhongshan School of Medicine, Sun Yat-sen University, 74 Zhongshan Road II, Guangzhou, 510080, Guangdong, China,
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12
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Xu J, Li D, Li X, Liu Z, Li T, Jiang P, He Q, Tian F, Gao Y, Wang D, Wang S. 67 laminin receptor promotes the malignant potential of tumour cells up-regulating lysyl oxidase-like 2 expression in cholangiocarcinoma. Dig Liver Dis 2014; 46:750-7. [PMID: 24794791 DOI: 10.1016/j.dld.2014.03.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 02/26/2014] [Accepted: 03/26/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND 67 laminin receptor (67LR) plays an important role in the invasion and metastasis of cholangiocarcinoma, but its mechanism remains unclear. AIMS We investigated the clinical significance of 67LR and its relation to lysyl oxidase-like 2 (LOXL2) in 67LR-mediated invasion and metastasis in cholangiocarcinoma. METHODS The clinical significance of 67LR and LOXL2 expression and the prognosis of patients were investigated in 73 cancerous and 32 paracancerous tissues by immunohistochemistry. The impact of LOXL2 on invasion, metastasis and 67LR expression was evaluated in cholangiocarcinoma cells by shRNA or expressed-plasmid transfection. RESULTS Expression of 67LR was recognized in 35.62% cholangiocarcinoma tissue, and none in paracancerous tissues. LOXL2 was positively correlated with expression of 67LR. Expression of 67LR or LOXL2 in cholangiocarcinomas was significantly associated with lymph node metastasis, differentiation and poor overall survival. Cox analysis showed that 67LR can act as an independent prognostic biomarker of prognosis in cholangiocarcinoma patients. Expression of LOXL2 decreased by knockdown of 67LR and increased by overexpression of 67LR in cholangiocarcinoma cells. Knockdown of LOXL2 reduced invasion and metastasis in vitro and in vivo. CONCLUSION 67LR may regulate the expression of LOXL2 to promote invasion and metastasis in cholangiocarcinoma cells. It could be used as an independent prognostic marker in cholangiocarcinoma patients.
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Affiliation(s)
- Jing Xu
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China; Hepatobiliary Surgery Department, First People Hospital of Yunnan Province, Kunming University of Science and Technology, PR China
| | - Dajing Li
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Xiaowu Li
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Zipei Liu
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Tianyu Li
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Peng Jiang
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Qiang He
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Feng Tian
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Yang Gao
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Dechun Wang
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | - Shuguang Wang
- Hepatobiliary Surgery Institute, Laboratory of Liver Transplantation, Southwest Hospital, Third Military Medical University, Chongqing, PR China.
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PARK GABIN, KIM DAEJIN, YOON HOISOO, KIM YEONGSEOK, LEE HYUNKYUNG, KIM KITAE, JEONG DAEHOON, HUR DAEYOUNG. Antibody ligation of CM1 on cisplatin-exposed HeLa cells induces apoptosis through reactive oxygen species-dependent Fas ligand expression. Int J Oncol 2014; 44:2016-24. [DOI: 10.3892/ijo.2014.2361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/27/2014] [Indexed: 11/06/2022] Open
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14
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Tian F, Li D, Chen J, Liu W, Cai L, Li J, Jiang P, Liu Z, Zhao X, Guo F, Li X, Wang S. Aberrant expression of GATA binding protein 6 correlates with poor prognosis and promotes metastasis in cholangiocarcinoma. Eur J Cancer 2013; 49:1771-80. [PMID: 23313142 DOI: 10.1016/j.ejca.2012.12.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 11/23/2012] [Accepted: 12/12/2012] [Indexed: 01/20/2023]
Abstract
AIM GATA6, a zinc-finger transcription factor, functions as a tumour promoter or suppresser according to different tumour origins. We investigated the clinical significance of GATA6 and its role in invasion and metastasis in cholangiocarcinoma (CCA). METHODS Expression of GATA6 in 87 cancerous, 24 paracancerous, 32 lymph-node metastatic and 8 liver metastatic samples from 87 CCA patients undergoing surgical resection was detected by immunohistochemistry. Impact of GATA6 on invasion, metastasis and 67kDa laminin receptor expression (67LR) was evaluated in CCA cells by shRNA lentivirus or expressed-plasmid transfection. RESULTS Aberrant expression of GATA6 in CCAs was significantly associated with lymph-node metastasis. GATA6 expression was higher in lymph-node and liver metastatic tissues compared with primary cancerous tissues. Kaplan-Meier analysis showed GATA6 expression correlated with poor overall survival and early recurrence in CCAs. Cox analysis suggested GATA6 was an independent prognostic marker for overall survival and recurrence-free survival. CCA cell invasion and migration were decreased by GATA6 knockdown and enhanced by GATA6 overexpression in vitro. Knockdown of GATA6 reduced CCA cell metastasis by xenotransplantation into nude mice. 67LR, which is overexpressed in CCAs and promotes invasion and metastasis through several pathways, positively correlated with GATA6 expression in 87 CCAs. Both mRNA and protein levels of 67LR were regulated by GATA6 in CCA cells. Moreover, ChIP analysis showed GATA6 bound to 67LR gene promoter in CCA cells. CONCLUSION Aberrant expression of GATA6 correlates with poor prognosis and promotes invasion and metastasis in CCA.
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Affiliation(s)
- Feng Tian
- Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
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Lee HK, Park GB, Kim YS, Song H, Broaddus VC, Hur DY. Ligation of CM1 enhances apoptosis of lung cancer cells through different mechanisms in conformity with EGFR mutation. Int J Oncol 2012; 42:469-77. [PMID: 23232551 PMCID: PMC3583643 DOI: 10.3892/ijo.2012.1731] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 11/23/2012] [Indexed: 01/17/2023] Open
Abstract
Although remarkable developments in lung cancer treatments have been made, lung cancer remains the leading cause of cancer mortality worldwide. Epidermal growth factor receptor (EGFR) is occasionally mutated in non-small cell lung cancer and heterogeneity in treatment response results from different EGFR mutations. In the present study, we found that centrocyte/centroblast marker 1 (CM1), previously reported as a possible apoptosis inducer of B lymphoma cells, is expressed on both A549 with wild-type EGFR and HCC827 with mutant EGFR lung cancer cells. Ligation of CM1 with anti-CM1 mAb enhanced apoptosis in both lung cancer cell lines through generation of reactive oxygen species (ROS) and disruption of mitochondrial membrane potential, however, the signaling mechanisms differed from each other. Further studies to investigate the signaling mechanisms identified that ligation of CM1-induced apoptosis in A549 cell involved FasL expression, caspase-8, ERK1/2 and Akt kinase, whereas apoptosis of HCC827 cells was induced through caspase-9, JNK and c-jun-dependent pathways. Taken together, we suggest that CM1 could be developed as a therapeutic target of lung cancer regardless of EGFR mutation status.
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Affiliation(s)
- Hyun-Kyung Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan 614-735, Republic of Korea
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