501
|
Xi S, Peng Y, Minuk GY, Shi M, Fu B, Yang J, Li Q, Gong Y, Yue L, Li L, Guo J, Peng Y, Wang Y. The combination effects of Shen-Ling-Bai-Zhu on promoting apoptosis of transplanted H22 hepatocellular carcinoma in mice receiving chemotherapy. JOURNAL OF ETHNOPHARMACOLOGY 2016; 190:1-12. [PMID: 27235019 DOI: 10.1016/j.jep.2016.05.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 05/22/2016] [Accepted: 05/23/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shen-Ling-Bai-Zhu Powder (SLBZP) is a classic traditional Chinese medical formula that has been used for several decades in the treatment of patients with gastrointestinal malignancies. Whether SLBZP is best employed as single agent or adjunctive therapy has yet to be determined as does the mechanism whereby SLBZP exerts its anti-tumor effects. AIM OF THE STUDY To investigate the effects of SLBZP alone and in combination with Cytoxan (CTX) on tumor growth, malignant cell apoptosis and Akt/Nuclear Factor kappa B (NF-КB) signaling in a murine model of hepatocellular carcinoma (HCC) receiving chemotherapy. MATERIALS AND METHODS Sixty-four adult mice developed HCC following subcutaneous inoculation with H22 hepatocellular carcinoma cells. Seven days later, all received chemotherapy with CTX (200mg/kg) once. Mice were then randomized into eight study groups (N=8/group). Three groups were treated with different concentrations of SLBZP alone (6.00, 3.00, 1.5g/kg), three with SLBZP (6.00, 3.00, 1.5g/kg) plus CTX (20mg/kg), one with CTX (20mg/kg) alone (positive control), and one with physiologic saline (untreated, negative control). All groups were treated for 14 days. Tumor size, histology and serum or tissue levels and/or mRNA expression of PDGF-BB, VEGF, Ang-1, Ang-2, NF-КB, B-cell lymphoma-2 (Bcl-2); B-cell lymphoma-extra large (Bcl-xL); X-linked inhibitor of apoptosis (XIAP), Survivin, Caspase-3, Caspase-9, Caspase-7, Akt and phosphorylated Akt expression were documented at the end of treatment. RESULTS Compared to untreated negative controls, tumor sizes were decreased in the CTX alone, SLBZP (M)+CTX and SLBZP (H)+CTX groups (-52%,-53% and -58% respectively). Tumor cell density was decreased in all treated groups but most apparent in the SLBZP (H)+CTX group. Electron microscopic evidence of apoptosis was also most apparent in this group. Serum and/or tissue levels and expression of PDGF-BB, VEGF, Ang-1, Ang-2, their downstream signaling proteins and anti-apoptotic markers were lowest and pro-apoptotic markers highest in SLBZP (H)+CTX treated mice. CONCLUSIONS In this chemotherapy-induced animal model of HCC, SLBZP was most efficacious as adjunctive therapy and appears to act by inhibiting tumor growth promoters and anti-apoptotic proteins while enhancing pro-apoptotic proteins.
Collapse
MESH Headings
- Angiogenic Proteins/genetics
- Angiogenic Proteins/metabolism
- Animals
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/genetics
- Apoptosis Regulatory Proteins/metabolism
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/ultrastructure
- Cell Line, Tumor
- Cisplatin/pharmacology
- Dose-Response Relationship, Drug
- Drugs, Chinese Herbal/pharmacology
- Female
- Gene Expression Regulation, Neoplastic
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/genetics
- Liver Neoplasms, Experimental/metabolism
- Liver Neoplasms, Experimental/ultrastructure
- Male
- Mice
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Signal Transduction/drug effects
- Time Factors
- Tumor Burden/drug effects
Collapse
Affiliation(s)
- Shengyan Xi
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China; Cancer Research Center of Xiamen University, Xiamen 361102, People's Republic of China.
| | - Ying Peng
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| | - Gerald Y Minuk
- Department of Internal Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg R3E 3P4, Manitoba, Canada
| | - Mengmeng Shi
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| | - Biqian Fu
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| | - Jiaqi Yang
- College of Pharmacy, University of Manitoba, Winnipeg R3E 0T5, Manitoba, Canada
| | - Qian Li
- Department of Internal Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg R3E 3P4, Manitoba, Canada
| | - Yuewen Gong
- College of Pharmacy, University of Manitoba, Winnipeg R3E 0T5, Manitoba, Canada
| | - Lifeng Yue
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, People's Republic of China
| | - Lili Li
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| | - Jinhua Guo
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| | - Yang Peng
- College of Pharmacy, University of Manitoba, Winnipeg R3E 0T5, Manitoba, Canada
| | - Yanhui Wang
- Department of Traditional Chinese Medicine, Medical College, Xiamen University, Xiamen 361102, People's Republic of China
| |
Collapse
|
502
|
Cabrera J, Saavedra E, del Rosario H, Perdomo J, Loro JF, Cifuente DA, Tonn CE, García C, Quintana J, Estévez F. Gardenin B-induced cell death in human leukemia cells involves multiple caspases but is independent of the generation of reactive oxygen species. Chem Biol Interact 2016; 256:220-7. [DOI: 10.1016/j.cbi.2016.07.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/05/2016] [Accepted: 07/12/2016] [Indexed: 12/27/2022]
|
503
|
Morton SD, Cadamuro M, Brivio S, Vismara M, Stecca T, Massani M, Bassi N, Furlanetto A, Joplin RE, Floreani A, Fabris L, Strazzabosco M. Leukemia inhibitory factor protects cholangiocarcinoma cells from drug-induced apoptosis via a PI3K/AKT-dependent Mcl-1 activation. Oncotarget 2016; 6:26052-64. [PMID: 26296968 PMCID: PMC4694885 DOI: 10.18632/oncotarget.4482] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 07/08/2015] [Indexed: 12/15/2022] Open
Abstract
Cholangiocarcinoma is an aggressive, strongly chemoresistant liver malignancy. Leukemia inhibitory factor (LIF), an IL-6 family cytokine, promotes progression of various carcinomas. To investigate the role of LIF in cholangiocarcinoma, we evaluated the expression of LIF and its receptor (LIFR) in human samples. LIF secretion and LIFR expression were assessed in established and primary human cholangiocarcinoma cell lines. In cholangiocarcinoma cells, we tested LIF effects on proliferation, invasion, stem cell-like phenotype, chemotherapy-induced apoptosis (gemcitabine+cisplatin), expression levels of pro-apoptotic (Bax) and anti-apoptotic (Mcl-1) proteins, with/without PI3K inhibition, and of pSTAT3, pERK1/2, pAKT. LIF effect on chemotherapy-induced apoptosis was evaluated after LIFR silencing and Mcl-1 inactivation. Results show that LIF and LIFR expression were higher in neoplastic than in control cholangiocytes; LIF was also expressed by tumor stromal cells. LIF had no effects on cholangiocarcinoma cell proliferation, invasion, and stemness signatures, whilst it counteracted drug-induced apoptosis. Upon LIF stimulation, decreased apoptosis was associated with Mcl-1 and pAKT up-regulation and abolished by PI3K inhibition. LIFR silencing and Mcl-1 blockade restored drug-induced apoptosis. In conclusion, autocrine and paracrine LIF signaling promote chemoresistance in cholangiocarcinoma by up-regulating Mcl-1 via a novel STAT3- and MAPK-independent, PI3K/AKT-dependent pathway. Targeting LIF signaling may increase CCA responsiveness to chemotherapy.
Collapse
Affiliation(s)
| | - Massimiliano Cadamuro
- Department of Molecular Medicine, University of Padua, Padua, Italy.,Department of Surgery & Translational Medicine, University of Milan-Bicocca, Milan, Italy
| | - Simone Brivio
- Department of Surgery & Translational Medicine, University of Milan-Bicocca, Milan, Italy
| | - Marta Vismara
- Department of Molecular Medicine, University of Padua, Padua, Italy.,Department of Surgery & Translational Medicine, University of Milan-Bicocca, Milan, Italy
| | - Tommaso Stecca
- Fourth Surgery Division, Treviso Regional Hospital, Treviso, Italy
| | - Marco Massani
- Fourth Surgery Division, Treviso Regional Hospital, Treviso, Italy
| | - Nicolò Bassi
- Fourth Surgery Division, Treviso Regional Hospital, Treviso, Italy.,Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padua, Italy
| | | | | | - Annarosa Floreani
- Department of Surgical, Oncological and Gastroenterological Sciences, University of Padua, Padua, Italy
| | - Luca Fabris
- Department of Molecular Medicine, University of Padua, Padua, Italy.,Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, USA
| | - Mario Strazzabosco
- Department of Surgery & Translational Medicine, University of Milan-Bicocca, Milan, Italy.,Section of Digestive Diseases, Yale University School of Medicine, New Haven, CT, USA
| |
Collapse
|
504
|
Dentamaro M, Lux F, Vander Elst L, Dauguet N, Montante S, Moussaron A, Burtea C, Muller RN, Tillement O, Laurent S. Chemical andin vitrocharacterizations of a promising bimodal AGuIX probe able to target apoptotic cells for applications in MRI and optical imaging. CONTRAST MEDIA & MOLECULAR IMAGING 2016; 11:381-395. [DOI: 10.1002/cmmi.1702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/18/2016] [Accepted: 05/13/2016] [Indexed: 12/22/2022]
|
505
|
Liu RT, Wang GR, Liu C, Qiu J, Yan LK, Li XJ, Wang XQ. RNAi-mediated downregulation of DNA binding protein A inhibits tumorigenesis in colorectal cancer. Int J Mol Med 2016; 38:703-12. [PMID: 27430286 PMCID: PMC4990294 DOI: 10.3892/ijmm.2016.2662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 06/22/2016] [Indexed: 12/14/2022] Open
Abstract
DNA binding protein A (dbpA) belongs to the Y-box binding protein family and has been reported to play an important role in carcinogenesis. Our previous study demonstrated that the knockdown of dbpA in gastric cancer cells inhibited cell proliferation by modulating the cell cycle. However, the role of dbpA in human colorectal cancer (CRC) remains unclear. In this study, immunohistochemical (IHC) staining and clinicopathological parameter analysis were employed to detect dbpA expression in 44 paired CRC samples and 7 CRC cell lines. Lentivirus-mediated short hairpin RNA (shRNA) was used to silence dbpA, and the effects of dbpA knockdown on cell proliferation were determined by MTT assay, colony formation assay and flow cytometry. Furthermore, a xenograft model was established to observe tumor growth in vivo. Functional analysis indicated that dbpA was overexpressed in the CRC tissues and cell lines, and a high dbpA expression was associated with the depth of invasion (p<0.001), the degree of differentiation (p<0.001), lymphatic metastasis (p<0.001) and vessel invasion (p<0.001). The suppression of dbpA expression resulted in decreased cell proliferation in vitro and tumor growth in vivo, and it induced cell cycle arrest and promoted the apoptosis of the CRC cells. As a whole, our findings illustrate the crucial role of dbpA in colorectal tumorigenesis. Thus, dbpA may be used as a novel and potent therapeutic target in CRC.
Collapse
Affiliation(s)
- Rui-Ting Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Guo-Rong Wang
- Department of General Surgery, The Third Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| | - Chang Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Jian Qiu
- Department of General Surgery, The Third Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| | - Li-Kun Yan
- Department of General Surgery, The Third Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| | - Xiao-Jun Li
- Department of General Surgery, The Third Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| | - Xiao-Qiang Wang
- Department of General Surgery, The Third Affiliated Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710068, P.R. China
| |
Collapse
|
506
|
Nowakowska M, Matysiak-Burzyńska Z, Kowalska K, Płuciennik E, Domińska K, Piastowska-Ciesielska AW. Angiotensin II promotes endometrial cancer cell survival. Oncol Rep 2016; 36:1101-10. [PMID: 27349856 DOI: 10.3892/or.2016.4887] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 03/17/2016] [Indexed: 11/06/2022] Open
Abstract
Endometrial cancer (EC) is one of the most common female cancers. One of the key processes involved in EC development is uncontrolled proliferation stimulated by local factors such as angiotensin. The aim of the present study was to evaluate the influence of angiotensin II (Ang II) on human EC cells. Biological assays and gene expression analysis were performed on three cell lines: ISH, MFE-296 and MFE-280. Our results indicated that at the beginning of cancerogenesis Ang II induced abnormal proliferation at lower doses. We also showed that dose-dependent induction of proliferation was connected with changes in the expression of MKI67, CCND1 and CCNE1 genes in well- and poorly differentiated cancer cells. After Ang II treatment, poorly differentiated endometrial cancer cell line acquired a mesenchymal phenotype, which was characterized by induced expression of EMT-related genes (VIM, CD44, SNAI1, ZEB1 and ZEB2). Our study revealed that Ang II influences EC cells in terms of cancer-related processes, and is responsible for increased proliferation, reduction in apoptosis, increased mobility and modulation of adhesion potential. Its effect and effectiveness appear to be highly connected with the differentiation status of the cancerous cells, as Ang II appears to play a crucial role in the early and late stages of malignant transformation.
Collapse
Affiliation(s)
- Magdalena Nowakowska
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Poland
| | | | - Karolina Kowalska
- Department of Comparative Endocrinology, Medical University of Lodz, Lodz 90-752, Poland
| | - Elżbieta Płuciennik
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Poland
| | - Kamila Domińska
- Department of Comparative Endocrinology, Medical University of Lodz, Lodz 90-752, Poland
| | | |
Collapse
|
507
|
Philipp S, Sosna J, Adam D. Cancer and necroptosis: friend or foe? Cell Mol Life Sci 2016; 73:2183-93. [PMID: 27048810 PMCID: PMC11108265 DOI: 10.1007/s00018-016-2193-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 03/18/2016] [Indexed: 01/12/2023]
Abstract
Regulated cell death is one major factor to ensure homoeostasis in multicellular organisms. For decades, apoptosis was considered as the sole form of regulated cell death, whereas necrosis was believed to be accidental and unregulated. Due to this view, research on necrosis was somewhat neglected, especially in the field of anti-cancer treatment. However, new interest in necrosis has been sparked by the recent discovery of different forms of necrosis that show indeed regulated pathways. More and more studies now address the molecular pathways of regulated necrosis and its connections within the cellular signaling networks. Necroptosis, a subform of regulated necrosis, has so far hardly been focused on with regard to a future treatment of cancer patients and may emerge as a novel and effective approach to eliminate tumor cells. However, and similar to apoptosis, tumor cells can develop resistances against necroptosis to ensure their own survival. In this context, new molecules that enhance necroptosis are currently being identified to overcome such resistances. This review discusses cancer and necroptosis as friends or foes, i.e. the options to exploit necroptosis in anti-cancer therapies ("foes"), but also potential limitations that may block or actually cause necroptosis to act in a protumoral manner ("friends"). The balance between these two possible roles will determine whether necroptosis can indeed be used as a promising tool for early diagnosis of tumors, prevention of metastasis and anti-cancer treatment.
Collapse
Affiliation(s)
- Stephan Philipp
- Institut für Immunologie, Christian-Albrechts-Universität, Michaelisstraße 5, 24105, Kiel, Germany
| | - Justyna Sosna
- Institut für Immunologie, Christian-Albrechts-Universität, Michaelisstraße 5, 24105, Kiel, Germany
| | - Dieter Adam
- Institut für Immunologie, Christian-Albrechts-Universität, Michaelisstraße 5, 24105, Kiel, Germany.
| |
Collapse
|
508
|
Xu G, Zou WQ, Du SJ, Wu MJ, Xiang TX, Luo ZG. Mechanism of dihydroartemisinin-induced apoptosis in prostate cancer PC3 cells: An iTRAQ-based proteomic analysis. Life Sci 2016; 157:1-11. [PMID: 27234895 DOI: 10.1016/j.lfs.2016.05.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 04/18/2016] [Accepted: 05/23/2016] [Indexed: 10/21/2022]
Abstract
AIMS Prostate cancer (PCa) is one of the most common cancers in men in the world. Advanced PCa, especially castration-resistant PCa (CRPC), is difficult to cure. There is an urgent need to develop novel agents for CPRC. Dihydroartemisinin (DHA) is a semisynthetic derivative of artemisinin and is a well-known antimalarial drug. DHA has been documented to be a potential anticancer agent for PCa. However, the mechanisms underlying the anticancer activity of DHA are still unknown. MAIN METHODS Proteomics analysis based on iTRAQ technology was performed to determine the protein profile changes in human prostate cancer PC3 cells treated by DHA, and apoptosis was detected by flow cytometry and transmission electron microscopy. KEY FINDINGS DHA induced obvious apoptosis in PC3 cells. Using iTRAQ technology, we found 86 differentially expressed proteins linked to the cytotoxicity of DHA in PC3 cells. Gene ontology analysis showed the differentially expressed proteins were mainly associated with the protein synthesis and translation. Protein interaction network analysis and KEGG pathway analysis revealed altered aminoacyl-tRNA biosynthesis and metabolic pathways. Moreover, one candidate protein, heat shock protein HSP70 (HSPA1A), was identified by western blot analysis. SIGNIFICANCE Our results indicate that multiple mechanisms involved in the anticancer activity of DHA in PC3 cells. Decreased HSP70 expression may have an important role in DHA-induced apoptosis in PC3 cells. Our data also provide novel insights into the anticancer mechanisms of DHA.
Collapse
Affiliation(s)
- Ge Xu
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Wen-Qin Zou
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Shi-Juan Du
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Ming-Jun Wu
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Ting-Xiu Xiang
- Artron BioResearch Inc., 3938 North Fraser Way, Burnaby, BC, V5J 5H6, Canada
| | - Zi-Guo Luo
- Institute of Life Science, Chongqing Medical University, Chongqing 400016, China.
| |
Collapse
|
509
|
Conrad M, Angeli JPF, Vandenabeele P, Stockwell BR. Regulated necrosis: disease relevance and therapeutic opportunities. Nat Rev Drug Discov 2016; 15:348-66. [PMID: 26775689 PMCID: PMC6531857 DOI: 10.1038/nrd.2015.6] [Citation(s) in RCA: 434] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The discovery of regulated cell death presents tantalizing possibilities for gaining control over the life-death decisions made by cells in disease. Although apoptosis has been the focus of drug discovery for many years, recent research has identified regulatory mechanisms and signalling pathways for previously unrecognized, regulated necrotic cell death routines. Distinct critical nodes have been characterized for some of these alternative cell death routines, whereas other cell death routines are just beginning to be unravelled. In this Review, we describe forms of regulated necrotic cell death, including necroptosis, the emerging cell death modality of ferroptosis (and the related oxytosis) and the less well comprehended parthanatos and cyclophilin D-mediated necrosis. We focus on small molecules, proteins and pathways that can induce and inhibit these non-apoptotic forms of cell death, and discuss strategies for translating this understanding into new therapeutics for certain disease contexts.
Collapse
Affiliation(s)
- Marcus Conrad
- Helmholtz Zentrum München, Institute of Developmental Genetics, 85764 Neuherberg, Germany
| | | | - Peter Vandenabeele
- Molecular Signaling and Cell Death Unit, Inflammation Research Center, Flanders Institute for Biotechnology, 9052 Ghent, Belgium
- Molecular Signaling and Cell Death Unit, Department of Biomedical Molecular Biology, Ghent University, 9000 Ghent, Belgium
- Methusalem Program, Ghent University, 9000 Ghent, Belgium
| | - Brent R Stockwell
- Department of Biological Sciences and Department of Chemistry, Howard Hughes Medical Institute, Columbia University, 550 West 120th Street, Northwest Corner Building, MC 4846, New York, New York 10027, USA
| |
Collapse
|
510
|
Leithe E. Regulation of connexins by the ubiquitin system: Implications for intercellular communication and cancer. Biochim Biophys Acta Rev Cancer 2016; 1865:133-46. [DOI: 10.1016/j.bbcan.2016.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 01/15/2016] [Accepted: 02/04/2016] [Indexed: 12/31/2022]
|
511
|
Yao J, Wei X, Lu Y. Chaetominine reduces MRP1-mediated drug resistance via inhibiting PI3K/Akt/Nrf2 signaling pathway in K562/Adr human leukemia cells. Biochem Biophys Res Commun 2016; 473:867-873. [PMID: 27038543 DOI: 10.1016/j.bbrc.2016.03.141] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 03/29/2016] [Indexed: 01/08/2023]
Abstract
Drug resistance limits leukemia treatment and chaetominine, a cytotoxic alkaloid that promotes apoptosis in a K562 human leukemia cell line via the mitochondrial pathway was studied with respect to chemoresistance in a K562/Adr human resistant leukemia cell line. Cytotoxicity assays indicated that K562/Adr resistance to adriamycin (ADR) did not occur in the presence of chaetominine and that chaetominine increased chemosensitivity of K562/Adr to ADR. Data show that chaetominine enhanced ADR-induced apoptosis and intracellular ADR accumulation in K562/Adr cells. Accordingly, chaetominine induced apoptosis by upregulating ROS, pro-apoptotic Bax and downregulating anti-apoptotic Bcl-2. RT-PCR and western-blot confirmed that chaetominine suppressed highly expressed MRP1 at mRNA and protein levels. But little obvious alternation of another drug transporter MDR1 mRNA was observed. Furthermore, inhibition of MRP1 by chaetominine relied on inhibiting Akt phosphorylation and nuclear Nrf2. In summary, chaetominine strongly reverses drug resistance by interfering with the PI3K/Akt/Nrf2 signaling, resulting in reduction of MRP1-mediated drug efflux and induction of Bax/Bcl-2-dependent apoptosis in an ADR-resistant K562/Adr leukemia cell line.
Collapse
Affiliation(s)
- Jingyun Yao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, PR China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai, PR China
| | - Xing Wei
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, PR China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai, PR China
| | - Yanhua Lu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, PR China; Shanghai Collaborative Innovation Center for Biomanufacturing Technology, 130 Meilong Road, Shanghai, PR China.
| |
Collapse
|
512
|
Synergistic Effect and Molecular Mechanisms of Traditional Chinese Medicine on Regulating Tumor Microenvironment and Cancer Cells. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1490738. [PMID: 27042656 PMCID: PMC4793102 DOI: 10.1155/2016/1490738] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 01/26/2016] [Indexed: 12/23/2022]
Abstract
The interaction of tumor cells with the microenvironment is like a relationship between the “seeds” and “soil,” which is a hotspot in recent cancer research. Targeting at tumor microenvironment as well as tumor cells has become a new strategy for cancer treatment. Conventional cancer treatments mostly focused on single targets or single mechanism (the seeds or part of the soil); few researches intervened in the whole tumor microenvironment and achieved ideal therapeutic effect as expected. Traditional Chinese medicine displays a broad range of biological effects, and increasing evidence has shown that it may relate with synergistic effect on regulating tumor microenvironment and cancer cells. Based on literature review and our previous studies, we summarize the synergistic effect and the molecular mechanisms of traditional Chinese medicine on regulating tumor microenvironment and cancer cells.
Collapse
|
513
|
Zheng K, Liao C, Li Y, Fan X, Fan L, Xu H, Kang Q, Zeng Y, Wu X, Wu H, Liu L, Xiao X, Zhang J, Wang Y, He Z. Gypenoside L, Isolated from Gynostemma pentaphyllum, Induces Cytoplasmic Vacuolation Death in Hepatocellular Carcinoma Cells through Reactive-Oxygen-Species-Mediated Unfolded Protein Response. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1702-1711. [PMID: 26870999 DOI: 10.1021/acs.jafc.5b05668] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Exploring novel anticancer agents that can trigger non-apoptotic or non-autophagic cell death is urgent for cancer treatment. In this study, we screened and identified an unexplored anticancer activity of gypenoside L (Gyp-L) isolated from Gynostemma pentaphyllum. We showed that treatment with Gyp-L induces non-apoptotic and non-autophagic cytoplasmic vacuolation death in human hepatocellular carcinoma (HCC) cells. Mechanically, Gyp-L initially increased the intracellular reactive oxygen species (ROS) levels, which, in turn, triggered protein ubiquitination and unfolded protein response (UPR), resulting in Ca(2+) release from endoplasm reticulum (ER) inositol trisphosphate receptor (IP3R)-operated stores and finally cytoplasmic vacuolation and cell death. Interruption of the ROS-ER-Ca(2+) signaling pathway by chemical inhibitors significantly prevented Gyp-L-induced vacuole formation and cell death. In addition, Gyp-L-induced ER stress and vacuolation death required new protein synthesis. Overall, our works provide strong evidence for the anti-HCC activity of Gyp-L and suggest a novel therapeutic option by Gyp-L through the induction of a unconventional ROS-ER-Ca(2+)-mediated cytoplasmic vacuolation death in human HCC.
Collapse
Affiliation(s)
- Kai Zheng
- College of Life Science and Technology, Jinan University , Guangzhou, Guangdong 510632, People's Republic of China
| | | | - Yan Li
- First Affiliated Hospital of Kunming Medical University , Kunming, Yunnan 650032, People's Republic of China
| | | | | | | | | | - Yong Zeng
- First Affiliated Hospital of Kunming Medical University , Kunming, Yunnan 650032, People's Republic of China
| | | | | | | | | | | | - Yifei Wang
- College of Life Science and Technology, Jinan University , Guangzhou, Guangdong 510632, People's Republic of China
| | | |
Collapse
|
514
|
Overexpression of RBM5 induces autophagy in human lung adenocarcinoma cells. World J Surg Oncol 2016; 14:57. [PMID: 26923134 PMCID: PMC4770605 DOI: 10.1186/s12957-016-0815-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 02/17/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Dysfunctions in autophagy and apoptosis are closely interacted and play an important role in cancer development. RNA binding motif 5 (RBM5) is a tumor suppressor gene, which inhibits tumor cells' growth and enhances chemosensitivity through inducing apoptosis in our previous studies. In this study, we investigated the relationship between RBM5 overexpression and autophagy in human lung adenocarcinoma cells. METHODS Human lung adenocarcinoma cancer (A549) cells were cultured in vitro and were transiently transfected with a RBM5 expressing plasmid (GV287-RBM5) or plasmid with scrambled control sequence. RBM5 expression was determined by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) and Western blot. Intracellular LC-3 I/II, Beclin-1, lysosome associated membrane protein-1 (LAMP1), Bcl-2, and NF-κB/p65 protein levels were detected by Western blot. Chemical staining with monodansylcadaverine (MDC) and acridine orange (AO) was applied to detect acidic vesicular organelles (AVOs). The ultrastructure changes were observed under transmission electron microscope (TEM). Then, transplanted tumor models of A549 cells on BALB/c nude mice were established and treated with the recombinant plasmids carried by attenuated Salmonella to induce RBM5 overexpression in tumor tissues. RBM5, LC-3, LAMP1, and Beclin1 expression was determined by immunohistochemistry staining in plasmids-treated A549 xenografts. RESULTS Our study demonstrated that overexpression of RBM5 caused an increase in the autophagy-related proteins including LC3-I, LC3-II, LC3-II/LC3-I ratio, Beclin1, and LAMP1 in A549 cells. A large number of autophagosomes with double-membrane structure and AVOs were detected in the cytoplasm of A549 cells transfected with GV287-RBM5 at 24 h. We observed that the protein level of NF-κB/P65 was increased and the protein level of Bcl-2 decreased by RBM5 overexpression. Furthermore, treatment with an autophagy inhibitor, 3-MA, enhanced RBM5-induced cell death and chemosensitivity in A549 cells. Furthermore, we successfully established the lung adenocarcinoma animal model using A549 cells. Overexpression of RBM5 enhanced the LC-3, LAMP1, and Beclin1 expression in the A549 xenografts. CONCLUSIONS Our findings showed for the first time that RBM5 overexpression induced autophagy in human lung adenocarcinoma cells, which might be driven by upregulation of Beclin1, NF-κB/P65, and downregulation of Bcl-2. RBM5-enhanced autophagy acts in a cytoprotective way and inhibition of autophagy may improve the anti-tumor efficacy of RBM5 in lung cancer.
Collapse
|
515
|
Nagai MA. Pleckstrin homology-like domain, family A, member 1 ( PHLDA1) and cancer. Biomed Rep 2016; 4:275-281. [PMID: 26998263 DOI: 10.3892/br.2016.580] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 01/19/2016] [Indexed: 12/12/2022] Open
Abstract
Pleckstrin homology-like domain, family A, member 1 (PHLDA1) encodes a member of an evolutionarily conserved pleckstrin homology-related domain protein family. It was first identified as a potential transcription factor required for Fas expression and activation-induced apoptosis in mouse T cell hybridomas. The exact molecular and biological functions of PHLDA1 remain to be elucidated. However, its expression is induced by a variety of external stimuli and there is evidence that it may function as a transcriptional activator that acts as a mediator of apoptosis, proliferation, differentiation and cell migration dependent on the cellular type and context. Recently, PHLDA1 has received attention due to its association with cancer. In the present review, the current knowledge of PHLDA1 protein structure, expression regulation and function is summarized. In addition, the current data in the literature is reviewed with regards to the role of PHLDA1 in cancer pathogenesis.
Collapse
Affiliation(s)
- Maria Aparecida Nagai
- Discipline of Oncology, Department of Radiology, Faculty of Medicine, University of São Paulo, Laboratory of Molecular Genetics, Center for Translational Research in Oncology, Cancer Institute of São Paulo, São Paulo, SP 01246-000, Brazil
| |
Collapse
|
516
|
Bacillus thuringiensis Crystal Protein Cry6Aa Triggers Caenorhabditis elegans Necrosis Pathway Mediated by Aspartic Protease (ASP-1). PLoS Pathog 2016; 12:e1005389. [PMID: 26795495 PMCID: PMC4721865 DOI: 10.1371/journal.ppat.1005389] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 12/18/2015] [Indexed: 02/07/2023] Open
Abstract
Cell death plays an important role in host-pathogen interactions. Crystal proteins (toxins) are essential components of Bacillus thuringiensis (Bt) biological pesticides because of their specific toxicity against insects and nematodes. However, the mode of action by which crystal toxins to induce cell death is not completely understood. Here we show that crystal toxin triggers cell death by necrosis signaling pathway using crystal toxin Cry6Aa-Caenorhabditis elegans toxin-host interaction system, which involves an increase in concentrations of cytoplasmic calcium, lysosomal lyses, uptake of propidium iodide, and burst of death fluorescence. We find that a deficiency in the necrosis pathway confers tolerance to Cry6Aa toxin. Intriguingly, the necrosis pathway is specifically triggered by Cry6Aa, not by Cry5Ba, whose amino acid sequence is different from that of Cry6Aa. Furthermore, Cry6Aa-induced necrosis pathway requires aspartic protease (ASP-1). In addition, ASP-1 protects Cry6Aa from over-degradation in C. elegans. This is the first demonstration that deficiency in necrosis pathway confers tolerance to Bt crystal protein, and that Cry6A triggers necrosis represents a newly added necrosis paradigm in the C. elegans. Understanding this model could lead to new strategies for nematode control. Necrosis contributes to many devastating pathological conditions, such as neurodegenerative diseases and microbial pathogenesis. Bacillus thuringiensis crystal proteins are effective biopesticides. Our study reveals that B. thuringiensis Cry6Aa protein triggers the necrosis pathway using Caenorhabditis elegans as a model. We show that aspartic protease ASP-1 is required for Cry6Aa protein-induced necrosis, whereas intrinsic insults induce necrosis mediated by ASP-3 and ASP-4. Our findings contribute to the understanding of the mechanism of Bt crystal protein action and host-pathogen interactions. Because necrosis mechanisms are conserved from nematodes to humans, the fact that necrosis can be induced by Cry6Aa provides a model system for studying necrosis mechanisms in human diseases.
Collapse
|
517
|
Jia L, Yang A. Noncoding RNAs in Therapeutic Resistance of Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 927:265-95. [DOI: 10.1007/978-981-10-1498-7_10] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
518
|
Dillon CP, Green DR. Molecular Cell Biology of Apoptosis and Necroptosis in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 930:1-23. [PMID: 27558815 DOI: 10.1007/978-3-319-39406-0_1] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cell death is a major mechanism to eliminate cells in which DNA is damaged, organelles are stressed, or oncogenes are overexpressed, all events that would otherwise predispose cells to oncogenic transformation. The pathways that initiate and execute cell death are complex, genetically encoded, and subject to significant regulation. Consequently, while these pathways are often mutated in malignancy, there is considerable interest in inducing cell death in tumor cells as therapy. This chapter addresses our current understanding of molecular mechanisms contributing to two cell death pathways, apoptotic cell death and necroptosis, a regulated form of necrotic cell death. Apoptosis can be induced by a wide variety of signals, leading to protease activation that dismantles the cell. We discuss the physiological importance of each apoptosis pathway and summarize their known roles in cancer suppression and the current efforts at targeting each pathway therapeutically. The intricate mechanistic link between death receptor-mediated apoptosis and necroptosis is described, as well as the potential opportunities for utilizing necroptosis in the treatment of malignancy.
Collapse
Affiliation(s)
- Christopher P Dillon
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
| | - Douglas R Green
- Department of Immunology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
| |
Collapse
|
519
|
Huang CY, Yu LCH. Pathophysiological mechanisms of death resistance in colorectal carcinoma. World J Gastroenterol 2015; 21:11777-11792. [PMID: 26557002 PMCID: PMC4631976 DOI: 10.3748/wjg.v21.i41.11777] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 06/18/2015] [Accepted: 08/31/2015] [Indexed: 02/06/2023] Open
Abstract
Colon cancers develop adaptive mechanisms to survive under extreme conditions and display hallmarks of unlimited proliferation and resistance to cell death. The deregulation of cell death is a key factor that contributes to chemoresistance in tumors. In a physiological context, balance between cell proliferation and death, and protection against cell damage are fundamental processes for maintaining gut epithelial homeostasis. The mechanisms underlying anti-death cytoprotection and tumor resistance often bear common pathways, and although distinguishing them would be a challenge, it would also provide an opportunity to develop advanced anti-cancer therapeutics. This review will outline cell death pathways (i.e., apoptosis, necrosis, and necroptosis), and discuss cytoprotective strategies in normal intestinal epithelium and death resistance mechanisms of colon tumor. In colorectal cancers, the intracellular mechanisms of death resistance include the direct alteration of apoptotic and necroptotic machinery and the upstream events modulating death effectors such as tumor suppressor gene inactivation and pro-survival signaling pathways. The autocrine, paracrine and exogenous factors within a tumor microenvironment can also instigate resistance against apoptotic and necroptotic cell death in colon cancers through changes in receptor signaling or transporter uptake. The roles of cyclooxygenase-2/prostaglandin E2, growth factors, glucose, and bacterial lipopolysaccharides in colorectal cancer will be highlighted. Targeting anti-death pathways in the colon cancer tissue might be a promising approach outside of anti-proliferation and anti-angiogenesis strategies for developing novel drugs to treat refractory tumors.
Collapse
|
520
|
Cortez A, de Ávila RI, da Cunha CRM, Santos AP, Menegatti R, Rezende KR, Valadares MC. 4-Nerolidylcatechol analogues as promising anticancer agents. Eur J Pharmacol 2015; 765:517-24. [DOI: 10.1016/j.ejphar.2015.08.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 08/14/2015] [Accepted: 08/17/2015] [Indexed: 01/30/2023]
|
521
|
LIU YUHONG, LIU HUI, CAO HUIQIN, SONG BIN, ZHANG WEN, ZHANG WANGGANG. PBK/TOPK mediates promyelocyte proliferation via Nrf2-regulated cell cycle progression and apoptosis. Oncol Rep 2015; 34:3288-96. [DOI: 10.3892/or.2015.4308] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/13/2015] [Indexed: 11/06/2022] Open
|
522
|
Bacellar IOL, Tsubone TM, Pavani C, Baptista MS. Photodynamic Efficiency: From Molecular Photochemistry to Cell Death. Int J Mol Sci 2015; 16:20523-59. [PMID: 26334268 PMCID: PMC4613217 DOI: 10.3390/ijms160920523] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 08/18/2015] [Accepted: 08/24/2015] [Indexed: 12/11/2022] Open
Abstract
Photodynamic therapy (PDT) is a clinical modality used to treat cancer and infectious diseases. The main agent is the photosensitizer (PS), which is excited by light and converted to a triplet excited state. This latter species leads to the formation of singlet oxygen and radicals that oxidize biomolecules. The main motivation for this review is to suggest alternatives for achieving high-efficiency PDT protocols, by taking advantage of knowledge on the chemical and biological processes taking place during and after photosensitization. We defend that in order to obtain specific mechanisms of cell death and maximize PDT efficiency, PSes should oxidize specific molecular targets. We consider the role of subcellular localization, how PS photochemistry and photophysics can change according to its nanoenvironment, and how can all these trigger specific cell death mechanisms. We propose that in order to develop PSes that will cause a breakthrough enhancement in the efficiency of PDT, researchers should first consider tissue and intracellular localization, instead of trying to maximize singlet oxygen quantum yields in in vitro tests. In addition to this, we also indicate many open questions and challenges remaining in this field, hoping to encourage future research.
Collapse
Affiliation(s)
- Isabel O L Bacellar
- Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil.
| | - Tayana M Tsubone
- Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil.
| | - Christiane Pavani
- Programa de Pós Graduação em Biofotônica Aplicada às Ciências da Saúde, Universidade Nove de Julho, São Paulo 01504-001, Brazil.
| | - Mauricio S Baptista
- Instituto de Química, Universidade de São Paulo, São Paulo 05508-900, Brazil.
| |
Collapse
|
523
|
Enomoto H, Nakamura H, Liu W, Nishiguchi S. Hepatoma-Derived Growth Factor: Its Possible Involvement in the Progression of Hepatocellular Carcinoma. Int J Mol Sci 2015; 16:14086-97. [PMID: 26101867 PMCID: PMC4490540 DOI: 10.3390/ijms160614086] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 06/11/2015] [Accepted: 06/17/2015] [Indexed: 02/05/2023] Open
Abstract
The development of hepatocellular carcinoma (HCC) is an important complication of viral infection induced by hepatitis virus C, and our major research theme is to identify a new growth factor related to the progression of HCC. HDGF (hepatoma-derived growth factor) is a novel growth factor that belongs to a new gene family. HDGF was initially purified from the conditioned medium of a hepatoma cell line. HDGF promotes cellular proliferation as a DNA binding nuclear factor and a secreted protein acting via a receptor-mediated pathway. HDGF is a unique multi-functional protein that can function as a growth factor, angiogenic factor and anti-apoptotic factor and it participates in the development and progression of various malignant diseases. The expression level of HDGF may be an independent prognostic factor for predicting the disease-free and overall survival in patients with various malignancies, including HCC. Furthermore, the overexpression of HDGF promotes the proliferation of HCC cells, while a reduction in the HDGF expression inhibits the proliferation of HCC cells. This article provides an overview of the characteristics of HDGF and describes the potential role of HDGF as a growth-promoting factor for HCC.
Collapse
Affiliation(s)
- Hirayuki Enomoto
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Mukogawa-cho 1-1, Nishinomiya, Hyogo 663-8501, Japan.
| | - Hideji Nakamura
- Department of Gastroenterology and Hepatology, Nissay Hospital, Itachibori 6-3-8, Nishi-ku, Osaka 550-0012, Japan.
| | - Weidong Liu
- Department of Hepatology and Infectious Diseases, the Second Affiliated Hospital, Shantou University Medical College, No. 69, Dongxiabei, Jinping, Shantou 515041, China.
| | - Shuhei Nishiguchi
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Mukogawa-cho 1-1, Nishinomiya, Hyogo 663-8501, Japan.
| |
Collapse
|