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Fu X, Yang Y, Zhang D. Molecular mechanism of albumin in suppressing invasion and metastasis of hepatocellular carcinoma. Liver Int 2022; 42:696-709. [PMID: 34854209 PMCID: PMC9299813 DOI: 10.1111/liv.15115] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 11/22/2021] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Worldwide, hepatocellular carcinoma (HCC) is one of the most common causes of death in people. Albumin (ALB) is considered as an important indicator for HCC prognosis, and evidence has shown HCC cell growth can be regulated by ALB. However, the role of ALB in hepatocarcinogenesis and the mechanism of action is still unknown. METHODS The expression of ALB was determined by clinical profiles, immunohistochemistry, and western blot. Wound healing and Transwell assays were conducted to evaluate the effects of ALB during migration and invasion in HCC. We used mass spectrometry coupled isobaric tags for relative and absolute quantitation (iTRAQ)-technology to identify secretory differentially expressed proteins (DEPs) in ALB knockdown HepG2 cells. Western blot, reverse transcription-quantitative polymerase chain reaction and enzyme-linked immunosorbent assay techniques were used for verification. RESULTS We suggested that ALB was associated with aggressive metastasis and depleting ALB significantly promoted invasion and migration of HCC. A total of 210 DEPs were identified after silencing of ALB. We observed that a negative correlation between ALB and urokinase plasminogen activator surface receptor (uPAR) expression levels. CONCLUSIONS ALB acts as a tumour suppressor and plays a key role in HCC progression, particularly in invasion and metastasis. Suppression of ALB promoted migration and invasion of HCC cells by increasing uPAR, matrix metalloproteinase (MMP2), and MMP9.
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Affiliation(s)
- Xiao Fu
- Department of Infectious Diseases, Key Laboratory of Molecular Biology for Infectious Diseases, Institute for Viral Hepatitis, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Yixuan Yang
- Department of Infectious Diseases, Key Laboratory of Molecular Biology for Infectious Diseases, Institute for Viral Hepatitis, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Dazhi Zhang
- Department of Infectious Diseases, Key Laboratory of Molecular Biology for Infectious Diseases, Institute for Viral Hepatitis, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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Patten DK, Flora R, Tolley N, Palazzo F. Sporadic medullary thyroid carcinoma with a pedunculated intraluminal internal jugular vein recurrence: A case report and literature review. Int J Surg Case Rep 2012; 3:92-6. [PMID: 22288056 DOI: 10.1016/j.ijscr.2011.11.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Accepted: 11/15/2011] [Indexed: 11/29/2022] Open
Abstract
Medullary thyroid carcinoma (MTC) is an uncommon usually slowly progressing neuroendocrine tumour that arises from calcitonin (CT) producing parafollicular C cells of the thyroid gland. It accounts for approximately 5% of all thyroid cancers. The majority of MTCs are sporadic (75%) whilst 25% are part of the MEN 2 hereditary syndrome (MEN 2A and MEN 2B and familial MTC). Mutations of the proto-oncogene, RET (Rearranged during Transfection), found on chromosome 10q11, are present in more than 95% of hereditary MTCs and about 25% of sporadic MTCs. MTC metastasizes primarily via lymphatic spread, to central, and lateral nodal neck compartments and the anterior and superior mediastinum. Distant haematogenous spread targets the lungs, liver, bone and brain, and is presumed to be secondary to a lymphatic pathway. There are no previously documented reports of a focal pedunculated metastases located within the jugular vein. We present the first reported case of a metastatic MTC lesion found in the right internal jugular vein in a man with recurrent MTC.
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Affiliation(s)
- Darren K Patten
- Department of Biosurgery and Surgical Oncology, St Mary's Hospital, Imperial College Healthcare NHS Trust, London, UK
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Lim KH, Kim KH, Choi SI, Park ES, Park SH, Ryu K, Park YK, Kwon SY, Yang SI, Lee HC, Sung IK, Seong BL. RPS3a over-expressed in HBV-associated hepatocellular carcinoma enhances the HBx-induced NF-κB signaling via its novel chaperoning function. PLoS One 2011; 6:e22258. [PMID: 21857917 PMCID: PMC3156704 DOI: 10.1371/journal.pone.0022258] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Accepted: 06/18/2011] [Indexed: 12/15/2022] Open
Abstract
Hepatitis B virus (HBV) infection is one of the major causes of hepatocellular carcinoma (HCC) development. Hepatitis B virus X protein (HBx) is known to play a key role in the development of hepatocellular carcinoma (HCC). Several cellular proteins have been reported to be over-expressed in HBV-associated HCC tissues, but their role in the HBV-mediated oncogenesis remains largely unknown. Here, we explored the effect of the over-expressed cellular protein, a ribosomal protein S3a (RPS3a), on the HBx-induced NF-κB signaling as a critical step for HCC development. The enhancement of HBx-induced NF-κB signaling by RPS3a was investigated by its ability to translocate NF-κB (p65) into the nucleus and the knock-down analysis of RPS3a. Notably, further study revealed that the enhancement of NF-κB by RPS3a is mediated by its novel chaperoning activity toward physiological HBx. The over-expression of RPS3a significantly increased the solubility of highly aggregation-prone HBx. This chaperoning function of RPS3a for HBx is closely correlated with the enhanced NF-κB activity by RPS3a. In addition, the mutational study of RPS3a showed that its N-terminal domain (1–50 amino acids) is important for the chaperoning function and interaction with HBx. The results suggest that RPS3a, via extra-ribosomal chaperoning function for HBx, contributes to virally induced oncogenesis by enhancing HBx-induced NF-κB signaling pathway.
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Affiliation(s)
- Keo-Heun Lim
- Department of Biotechnology, College of Life science and Biotechnology, Yonsei University, Seoul, Korea
| | - Kyun-Hwan Kim
- Department of Pharmacology, IBST, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Sciences, Konkuk University, Seoul, Korea
- * E-mail: (BLS); (K-HK)
| | - Seong Il Choi
- Translational Research Center for Protein Function Control, Yonsei University, Seoul, Korea
| | - Eun-Sook Park
- Department of Pharmacology, IBST, Konkuk University School of Medicine, Seoul, Korea
| | - Seung Hwa Park
- Department of Anatomy and Center for Cancer Research and Diagnostic Medicine, IBST, Konkuk University School of Medicine, Seoul, Korea
| | - Kisun Ryu
- Department of Biotechnology, College of Life science and Biotechnology, Yonsei University, Seoul, Korea
| | - Yong Kwang Park
- Department of Pharmacology, IBST, Konkuk University School of Medicine, Seoul, Korea
| | - So Young Kwon
- Department of Internal Medicine, IBST, Konkuk University School of Medicine, Seoul, Korea
| | - Sung-Il Yang
- Department of Pharmacology, IBST, Konkuk University School of Medicine, Seoul, Korea
- Research Institute of Medical Sciences, Konkuk University, Seoul, Korea
| | - Han Chu Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - In-Kyung Sung
- Department of Internal Medicine, IBST, Konkuk University School of Medicine, Seoul, Korea
| | - Baik L. Seong
- Department of Biotechnology, College of Life science and Biotechnology, Yonsei University, Seoul, Korea
- Translational Research Center for Protein Function Control, Yonsei University, Seoul, Korea
- * E-mail: (BLS); (K-HK)
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Musholt TJ, Brehm C, Hanack J, von Wasielewski R, Musholt PB. Identification of Differentially Expressed Genes in Papillary Thyroid Carcinomas With and Without Rearrangements of the Tyrosine Kinase Receptors RET and/or NTRK1. J Surg Res 2006; 131:15-25. [PMID: 16256137 DOI: 10.1016/j.jss.2005.08.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2005] [Revised: 08/07/2005] [Accepted: 08/09/2005] [Indexed: 11/17/2022]
Abstract
BACKGROUND The transforming capacities of RET and/or NTRK1 chimeric oncogenes as well as the molecular background of non-rearranged papillary thyroid carcinomas (PTCs) remain to be elucidated. To assess altered gene expression, we examined PTCs with and without tyrosine kinase receptor rearrangements by mRNA differential display (DD). MATERIALS AND METHODS Six of 13 PTCs examined harbored RET chimeras (3x RET/PTC1, 1x RET/PTC3) and/or NTRK1 chimeras (2x trk, 1x TRK-T3, 2 unknown TRK hybrids). The method of DD analysis was refined by a novel fragment-recovery technique using a high-performance fluorescence scanner. RESULTS Of 500 up- or down-regulated mRNA transcripts, 19 selected fragments were recovered, cloned, sequenced, and identified. The accuracy and high degree of reproducibility of the method was demonstrated. Differential expression of gene products with potential association to cell proliferation or tumor progression was observed, such as 14-3-3beta and Rab27a. Moreover, several gene products with unknown functions were demonstrated in PTCs bearing RET or NTRK1 hybrids versus rearrangement-negative PTCs, including a homologue of the Ig kappa light chain constant region. CONCLUSIONS Candidate transcripts with presumed tumorigenic potential in other solid tumors may prove to be relevant in the progression of PTCs, too. Most promising is the isolation of several differentially expressed, yet unknown, genes that may open new insights in the pathogenesis or progression of PTC.
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Affiliation(s)
- Thomas J Musholt
- Endocrine Surgery, Johannes Gutenberg University Mainz, Mainz, Germany.
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Musholt TJ, Hanack J, Brehm C, von Wasielewski R, Musholt PB. Searching for non-RET molecular alterations in medullary thyroid carcinoma: expression analysis by mRNA differential display. World J Surg 2005; 29:472-82. [PMID: 15776290 DOI: 10.1007/s00268-004-7748-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Some 25%-70% of sporadic medullary thyroid carcinomas (MTCs) are associated with somatic mutations within the RET proto-oncogene. In a significant number of MTCs, however, no such genetic variations can be detected, which implies alternative pathogenic molecular alterations. To assess altered RET mutation-specific gene expression, and to identify yet unknown gene transcripts involved in the tumorigenesis of MTC, we performed an expression analysis by mRNA differential display (RT-DD). Snap-frozen tumor tissues and corresponding normal thyroid tissues of 8 patients suffering from MTC (6 sporadic, 2 hereditary tumors) were included in the study; 5/8 MTCs harbored RET point mutations (codons 618, 634, 918). The RT-DD method was refined by use of fluorescence-labeled arbitrary oligonucleotides, electrophoresis on an automated sequencer, and a novel fragment-recovery technique utilizing a high-performance fluorescence scanner. More than 400 differentially expressed mRNA transcripts--representing upregulated or downregulated genes in the compared tissues--were detected. In all, 28 selected fragments were recovered, cloned, sequenced, and identified. Differential expression of gene transcripts with known association to cell proliferation or tumor progression--such as annexin A2, Rab11a, trefoil proteins, superoxide dismutase (SOD1), mitochondrial displacement loop (D-loop), and G protein subunit gamma11--as well as of the neuroendocrine marker chromogranin was observed. Furthermore, several mRNA transcripts of yet unknown genes displayed mutation-specific upregulation or downregulation in MTC. Illumination of the molecular basis especially of C-cell carcinomas without detectable alterations of the RET receptor tyrosine kinase will be required for the development of therapeutic strategies for advanced tumors that cannot be bridled or cured by surgical interventions alone.
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Affiliation(s)
- Thomas J Musholt
- Department of General and Abdominal Surgery, Johannes Gutenberg University, Langenbeckstr.1, 55101 Mainz, Germany.
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Li S, Hanna E, Breau R, Ratanatharathorn V, Xia X, Suen J. Preferential expression of hPGFS in primary SCCHN and tumour cell lines derived from respiratory and digestive organs. Br J Cancer 2004; 90:1093-9. [PMID: 14997212 PMCID: PMC2409636 DOI: 10.1038/sj.bjc.6601636] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Identifying overexpressed genes in tumours is a critical step for tumour diagnosis, prognosis, and treatment. Using differential display polymerase chain reaction, sequence analysis, and gene Blast searches, we discovered that human prostaglandin F synthase (hPGFS) was upregulated in squamous cell carcinoma of the head and neck (SCCHN). Northern blot analysis indicated that up to a 16-fold increase in the level of hPGFS expression was detected in 40.5% (15 out of 37) of SCCHN primary tumours. The increased expression of hPGFS in SCCHN was primarily detected in SCC of larynx and hypopharynx (59%, P<0.05). Using the same primary tissue samples, increased levels of epidermal growth factor receptor (EGFR) expression were detected in only 32% of tumour tissues, suggesting hPGFS may have the potential to become a drug target or molecular marker for SCCHN. To determine if the increased level of hPGFS expression came from tumour cells, we determined the level of hPGFS expression in SCCHN tumour cell lines. A high level of hPGFS expression was detected in four out of five tumour SCCHN cell lines. To determine if upregulation of hPGFS is SCCHN-specific, hPGFS expression was analysed in 59 tumour cell lines derived from different types of tumours. The expression of hPGFS was increased from two- to 500-fold in a large portion of cell lines derived from lung (five out of nine), colon (five out of seven) as well as head and neck cancer (four out of five). These data link hPGFS expression to tumours located in the respiratory and digestive organs.
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Affiliation(s)
- S Li
- Department of Comparative Biomedical Sciences, SVM, Louisiana State University, Skip Bertman Drive, LA 70803, USA.
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Abstract
In order to better understand how tumor cells develop resistance to chemotherapy drugs, we screened a human cDNA expression library in Jurkat cells for cDNA's that conferred resistance to doxorubicin-induced cell death. One of the cDNA's isolated in the screen codes for ribosomal protein L35a, a component of the large subunit of the ribosome. Jurkat cells engineered to overexpress L35a protein were more resistant not only to doxorubicin but also to UV-irradiation, anti-Fas antibody, and serum starvation compared to Jurkat cells expressing endogenous levels of L35a. Jurkat cells overexpressing L35a did not have increased levels of the anti-apoptotic proteins Bcl-2 or Bcl-xL, the drug efflux pump P-glycoprotein, nor altered cellular growth kinetics or total protein synthesis. Our results provide new insight into L35a function and suggest that it may have a role in the cellular response to cytotoxic damage. Since L35a RNA is overexpressed in a significant number of glioblastoma multiforme (GBM) brain tumors, our results may stimulate further investigation into the possible role of L35a in the resistance of GBM to cytotoxic therapy.
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Affiliation(s)
- Charles D Lopez
- Department of Medicine, Division of Hematology and Medical Oncology, Oregon Health Sciences University, 3181 SW Sam Jackson Park Road, MC L586, Portland, OR 97201-3098, USA.
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Cui K, Coutts M, Stahl J, Sytkowski AJ. Novel interaction between the transcription factor CHOP (GADD153) and the ribosomal protein FTE/S3a modulates erythropoiesis. J Biol Chem 2000; 275:7591-6. [PMID: 10713066 DOI: 10.1074/jbc.275.11.7591] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The transcription factor CHOP (GADD153) heterodimerizes with other C/EBP family members, especially C/EBPbeta, thus preventing their homodimerization and binding to DNA sequences specific for the homodimers. Some CHOP-C/EBP heterodimers apparently bind to alternative DNA sequence and thereby regulate the transcription of other genes. Recently, we demonstrated that CHOP is up-regulated during certain stages of erythroid differentiation and that ectopic overexpression of CHOP enhances this process (Coutts, M., Cui, K., Davis, K. L., Keutzer, J. C., and Sytkowski, A. J. (1999) Blood 93, 3369-3378). In the present study, we report that CHOP also interacts with another non-C/EBP protein designated v-fos transformation effector (FTE) (Kho, C. J., and Zarbl, H. (1992) Proc. Natl. Acad. Sci. U. S. A. 89, 2200-2204), which is identical to ribosomal protein S3a (Metspalu, A., Rebane, A., Hoth, S., Pooga, M., Stahl, J. , and Kruppa, J. (1992) Gene (Amst.) 119, 313-316). Bacterially expressed His-CHOP and in vitro translated (35)S-labeled FTE/S3a-Gal4 fusion protein co-immunoprecipitated using anti-CHOP antibodies, and both anti-CHOP and anti-FTE/S3a antibodies co-immunoprecipitated CHOP and FTE/S3a from lysates of Rauscher murine erythroleukemia cells overexpressing both proteins. The in vivo interaction of CHOP and FTE/S3a was also demonstrated in cells overexpressing FTE/S3a but with endogenous expression levels of CHOP. Western blot analysis demonstrated co-localization of CHOP and FTE/S3a in both the cytosol and the nuclei of non-transfected cells. Overexpression of FTE/S3a inhibited differentiation of Rauscher cells induced either by erythropoietin or by dimethyl sulfoxide. This inhibition was reversed partially by simultaneous overexpression of CHOP or of antisense fte/S3a. FTE/S3a appears to be a bifunctional ribosomal protein that regulates CHOP and, hence, C/EBP function during erythropoiesis.
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Affiliation(s)
- K Cui
- Laboratory for Cell and Molecular Biology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, USA
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Martín-Satué M, Blanco J. Identification of semaphorin E gene expression in metastatic human lung adenocarcinoma cells by mRNA differential display. J Surg Oncol 1999; 72:18-23. [PMID: 10477871 DOI: 10.1002/(sici)1096-9098(199909)72:1<18::aid-jso5>3.0.co;2-p] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
UNLABELLED Human lung adenocarcinoma cell lines HAL-8Luc and HAL-24Luc differ in their metastatic potential. HAL-8Luc cells metastasize to lungs when injected either intravenously or intramuscularly. in mice while HAL-24Luc cells do not. The differential display method is used to identify genes differentially expressed between the two cell lines and the findings are extensively discussed. BACKGROUND Lung cancer is the leading form of cancer in most countries, and metastasis is the main cause of death in oncological patients. The metastatic phenotype of tumor cells is the result of genetic events altering the RNA and protein expression of normal cells. Our objective was to identify genes expressed differentially between metastatic and nonmetastatic human lung adenocarcinoma cells that might be used as a prognostic factor. METHODS The differential display technique was used to compare the RNA expression patterns distinguishing metastatic (HAL-8Luc) and nonmetastatic (HAL-24Luc) human lung adenocarcinoma cells, two genetically close cell lines. RESULTS Differential expression of three cDNAs was confirmed by Northern blot analysis. Two sequences corresponding to a putative splicing factor and a proliferation-related factor cDNAs were underexpressed in the metastatic cells relative to the nonmetastatic ones. Interestingly, we found that human semaphorin E mRNA was several fold overexpressed in the metastatic cells. This recently identified gene encodes a protein whose expression has been related to several cell survival mechanisms as well as to immunosuppression. CONCLUSION Our results point to the relevance of semaphorin E in metastatic spread of human lung adenocarcinoma cells.
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Affiliation(s)
- M Martín-Satué
- Departament de Biologia Cel.lular, Institut de Recerca Oncològica, Barcelona, Spain
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