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Kronstein-Wiedemann R, Künzel SR, Thiel J, Tonn T. Role of MiRNA in the Regulation of Blood Group Expression. Transfus Med Hemother 2024; 51:237-251. [PMID: 39135851 PMCID: PMC11318968 DOI: 10.1159/000538866] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 04/11/2024] [Indexed: 08/15/2024] Open
Abstract
Background MicroRNAs (miRNAs) are small, endogenous non-coding RNA molecules that inhibit gene expression through either destabilization of the target mRNA or translational repression. MiRNAs recognize target sites, most commonly found in the 3'-untranslated regions of cognate mRNAs. This review aims to provide a state-of-the-art overview of the role of miRNAs in the regulation of major blood group antigens such as ABH as well as cancer-specific glycans. Summary Besides their known roles in the control of developmental processes, proliferation, apoptosis, and carcinogenesis, miRNAs have recently been identified to play a regulatory role during erythropoiesis and blood group antigen expression. Since only little is known about the function of the red cell membrane proteins carrying blood group antigens, it is of great interest to shed light on the regulatory mechanisms of blood group gene expression. Some carrier proteins of blood group antigens are not restricted to red blood cells and are widely expressed in other bodily fluids and tissues and quite a few play a crucial role in tumor cells, as either tumor suppressors or promoters. Key Message All available data point at a tremendous physiological as well as pathophysiological relevance of miRNAs in context of blood group regulation. Furthermore, miRNAs are involved in the regulation of pleiotropic genetic pathways such as hematopoiesis and tumorigenesis and thus have to be studied in future research on this subject.
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Affiliation(s)
- Romy Kronstein-Wiedemann
- Laboratory for Experimental Transfusion Medicine, Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- German Red Cross Blood Donation Service North-East, Institute for Transfusion Medicine, Dresden, Germany
| | - Stephan R. Künzel
- Laboratory for Experimental Transfusion Medicine, Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- German Red Cross Blood Donation Service North-East, Institute for Transfusion Medicine, Dresden, Germany
| | - Jessica Thiel
- Laboratory for Experimental Transfusion Medicine, Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- German Red Cross Blood Donation Service North-East, Institute for Transfusion Medicine, Dresden, Germany
| | - Torsten Tonn
- Laboratory for Experimental Transfusion Medicine, Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- German Red Cross Blood Donation Service North-East, Institute for Transfusion Medicine, Dresden, Germany
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Zhu H, Ma Q, Li R, Fu M, Lu P. Blood group-related antigen Le y on human platelets and its involvement in platelet aggregation via a possible interaction with CD61. Transfusion 2020; 60:2130-2138. [PMID: 32757229 DOI: 10.1111/trf.15981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 05/11/2020] [Accepted: 05/11/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The Ley antigen is a carbohydrate chain belonging to the ABH-Lewis blood group family. Ley has been reported to be present on red blood cells (RBCs) and granulocytes, but its distribution and function in platelets remain unknown. There are a variety of glycoproteins on platelets, which may carry the Ley antigen. This study aims to investigate the expression pattern and the function of Ley in human platelets. STUDY DESIGN AND METHODS Flow cytometry, Western blot, and immunofluorescence assays were performed to determine Ley expression on human platelets. ADP (1.25-10 μM) and thrombin (0.05-1 IU/mL) were used to activate platelets in the presence or absence of prostaglandin E1 (PGE1) and the Ley expression was evaluated again by flow cytometry. Blockade was performed with an anti-Ley monoclonal antibody to verify the role of this epitope in platelet function. Finally, coimmunoprecipitation was performed to identify glycoproteins associated with Ley . RESULTS Ley was expressed on human platelets independent of ABO blood type. Ley expression was decreased in a dose-dependent manner after activation with either ADP or thrombin, and this effect could be partially reversed by PGE1. Anti- Ley mAb treatment increased alpha-granule release and neutralized the inhibitory effect of the anti-CD61 antibody on platelet aggregation. In addition, Ley was proven to interact and colocalize with CD61. CONCLUSIONS These results demonstrate nondifferential expression of Ley in platelets of different ABO blood types and suggest the involvement of Ley in platelet function, possibly via interaction with CD61.
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Affiliation(s)
- Huijun Zhu
- Immunohematology Platelet Lab, Shanghai Blood Center, Shanghai, China
| | - Qinqin Ma
- Immunohematology Platelet Lab, Shanghai Blood Center, Shanghai, China
| | - Ruishu Li
- Immunohematology Platelet Lab, Shanghai Blood Center, Shanghai, China
| | - Min Fu
- Immunohematology Platelet Lab, Shanghai Blood Center, Shanghai, China
| | - Ping Lu
- Immunohematology Platelet Lab, Shanghai Blood Center, Shanghai, China
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Li C, Ouyang N, Wang X, Liang A, Mo Y, Li S, Qiu J, Fang G, Fu Y, Song B, Chen Z, Ding Y. Association between the ABO blood group and primary knee osteoarthritis: A case-control study. J Orthop Translat 2020; 21:129-135. [PMID: 32309138 PMCID: PMC7152790 DOI: 10.1016/j.jot.2019.08.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 08/03/2019] [Accepted: 08/07/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Recent studies have suggested association between the ABO blood group and inflammation, which was a crucial pathological process of primary knee osteoarthritis. The aim of this study was to investigate the association between the ABO blood group and primary knee osteoarthritis and the severity of primary knee osteoarthritis evaluated by the Kellgren/Lawrence score, as well as the histopathologic association in a subgroup of patients. METHODS We performed a retrospective review of patients with primary knee osteoarthritis that served as the case group and a random sampling of healthy blood donors that served as the control group. The severity of knee osteoarthritis at the first outpatient visit was evaluated by the Kellgren/Lawrence scoring system. Further study was performed to investigate the expression of blood group antigens in synovial tissue of the knee in both cases and controls. RESULTS A total of 1126 cases and 30299 controls were involved. The proportion of AB blood group was higher in the case group than in the control group (9.7% vs. 7.8%), and logistic regression revealed that the AB blood group was a risk factor of primary knee osteoarthritis (P = 0.025 and 0.048 for univariate and multivariate analysis, respectively), independent of age (P = 0.973) and sex (P = 0.520). Patients of the blood group AB had a higher Kellgren/Lawrence score (P = 0.017). The immunohistochemical study indicated association between LeY antigen and primary knee osteoarthritis (P = 0.029). CONCLUSIONS This study suggested that the blood group AB was associated with primary knee osteoarthritis, as well as its radiological severity. Further study indicated that LeY antigen, which was related to the blood group, was associated with primary knee osteoarthritis. TRANSLATIONAL POTENTIAL OF THIS ARTICLE This study revealed that blood group AB and LeY antigen was associated with primary knee osteoarthritis, which shed new light on the nature of osteoarthritis, and the development of novel therapy for osteoarthritis.
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Key Words
- ACR, American College of Rheumatology
- ANOVA, analysis of variance
- Blood group
- CI, confidence interval
- FUT, fucosyltransferase
- HR, hazard ratio
- IHC, immunohistochemistry
- IRB, institutional review board
- K/L, Kellgren/Lawrence
- Kellgren/Lawrence
- Knee
- LeY antigen
- OA, osteoarthritis
- Osteoarthritis
- ST, synovial tissue
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Affiliation(s)
- Changchuan Li
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Nengtai Ouyang
- Department of Pathology, Sun Yat-sen Memorial Hospital, China
| | - Xiuju Wang
- Department of Blood Transfusion, Sun Yat-sen Memorial Hospital, China
| | - Anjing Liang
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Yingqian Mo
- Department of Rheumatology and Immunology, Sun Yat-sen Memorial Hospital, China
| | - Shixun Li
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Junxiong Qiu
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Guibin Fang
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Yuan Fu
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Bin Song
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Zhong Chen
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
| | - Yue Ding
- Department of Orthopaedic Surgery, Sun Yat-sen Memorial Hospital, China
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Gan CZ, Li G, Luo QS, Li HM. miR-339-5p downregulation contributes to Taxol resistance in small-cell lung cancer by targeting α1,2-fucosyltransferase 1. IUBMB Life 2017; 69:841-849. [PMID: 28940895 DOI: 10.1002/iub.1679] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 07/06/2017] [Indexed: 12/23/2022]
Abstract
Lung cancer is a leading cause of cancer-related mortality, and non-small-cell lung carcinoma is responsible for almost 80% of lung cancer-related deaths. In recent years, lung cancer has shown increasing incidence but poor prognosis, and many studies have demonstrated that microRNAs play crucial roles in the development of lung carcinoma and chemoresistance. This study investigated the role of miR-339-5p involvement in lung carcinoma cell lines and chemoresistance to Taxol. We observed that miR-339-5p was significantly downregulated in Taxol-A549 cells compared with A549 cells. In vitro studies further indicated that miR-339-5p could promote colony formation and attenuate apoptosis of lung carcinoma cell lines through targeting α1,2-fucosyltransferase 1 and regulation of the downstream protein Lewis y. Furthermore, miR-339-5p was found to enhance the proliferation inhibition ability of Taxol in lung carcinoma cell lines as well as in the Taxol-A549 subclone. An in vivo study indicated that both miR-339-5p and Taxol could attenuate the growth of lung carcinoma; moreover, miR-339-5p could synergistically promote this inhibitory function of Taxol. In summary, our results suggest a miR-339-5p molecular network that is involved in controlling lung carcinoma progression. © 2017 The Authors IUBMB Life published by Wiley Periodicals, Inc. on behalf of International Union of Biochemistry and Molecular Biology, 69(11):841-849, 2017.
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MESH Headings
- A549 Cells
- Animals
- Antineoplastic Agents, Phytogenic/pharmacology
- Apoptosis/drug effects
- Base Sequence
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Non-Small-Cell Lung/therapy
- Cell Line, Tumor
- Cell Survival/drug effects
- Drug Resistance, Neoplasm/genetics
- Female
- Fucosyltransferases/genetics
- Fucosyltransferases/metabolism
- Gene Expression Regulation, Neoplastic
- Humans
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/therapy
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Molecular Mimicry
- Oligodeoxyribonucleotides/genetics
- Oligodeoxyribonucleotides/metabolism
- Paclitaxel/pharmacology
- Signal Transduction
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays
- Galactoside 2-alpha-L-fucosyltransferase
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Affiliation(s)
- Chong-Zhi Gan
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - Gang Li
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - Qing-Song Luo
- Department of Thoracic Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
| | - Hong-Min Li
- Cancer Center, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, People's Republic of China
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Fucosyltransferase-4 and Oligosaccharide Lewis Y Antigen as potentially Correlative Biomarkers of Helicobacter pylori CagA Associated Gastric Cancer. Pathol Oncol Res 2016; 23:173-179. [PMID: 27757838 DOI: 10.1007/s12253-016-0122-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 10/04/2016] [Indexed: 12/20/2022]
Abstract
H. pylori cytotoxin associated antigen A (CagA) plays a significant role in the progression of gastric cancer but their effect on fucosylation to develop gastric cancer is unknown. Fucosyltransferase IV (FUT4) is the key enzyme for synthesis of LewisY (LeY) carried by glycoproteins and glycolipids on the cell membrane. Herein, we compare the expression of CagA, p-EGFR, FUT4 and LeY in gastritis (n = 128, 176), gastric ulcer (n = 174, 213), and gastric cancer (n = 323, 261) tissue and serum samples, respectively by IHC and ELISA. Moreover, we investigated the potential correlation of CagA with FUT4 and LeY overexpression through EGFR activation. IHC and ELISA results showed higher positive cases of H. pylori CagA (83, 86 %), p-EGFR (81, 72 %), FUT4 (91, 97 %) and LeY (93, 92 %) in gastric cancer, compared to gastritis and gastric ulcer, H. pylori CagA (58, 67 & 59, 73 %), p-EGFR (52, 63 & 35, 47 %), FUT4 (68, 78 & 67, 82 %) and LeY (62,76 & 65, 85 %), respectively. We found a significant high expression (H-Value) of CagA (1.79, 1.66), p-EGFR (1.53, 1.58), FUT4 (2.14, 1.66) and LeY (1.69, 1.61) in gastric cancer tissues and serum, respectively as compared to chronic gastritis and gastric ulcers, CagA (0.64,1.14), p-EGFR (0.856, 0.678), FUT4 (0.949,1.197) and LeY (0.68,1.008) (P < 0.0001), respectively. Furthermore, H. pylori CagA showed significant correlation with p-EGFR (R-0.62, -0.74), FUT4 (R-0.81, -0.76) and LeY (R-0.82, -0.70) in gastric tissues and serum (P < 0.0001). H. pylori CagA plays key role in the development of gastric cancer with overexpression of FUT4/LeY, serve as potentially correlative biomarkers of H. pylori CagA associated gastric cancer.
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Awaad A. Lectin histochemistry shows the comparative biosynthesis and cellular biodistribution of alpha L-fucose residues in some tissues of tetrapoda representatives. Acta Histochem 2016; 118:46-55. [PMID: 26613632 DOI: 10.1016/j.acthis.2015.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 10/27/2015] [Accepted: 11/10/2015] [Indexed: 12/23/2022]
Abstract
Fucose is a monosaccharide that plays several immunological roles. This study investigated the comparative biosynthesis and cellular biodistribution of fucose residues in some tissues of tetrapoda representatives using lectin histochemistry. In this study, the mouse was used as a representative for mammalian, pigeon for avian, lizard for reptilian, and toad for amphibians. The localization of the fucose residues was seen in several cell types of mice ileum, such as villi microfold (M) cells, goblet cells, some of intestinal crypts cells, and lamina propria cells. In other tetrapoda representatives, fucose was only seen in M cells of lizard ileum and some cells of villi lamina propria of pigeon, lizard, and toad. It was also observed in the pancreatic acinar cells of the mouse and some cell aggregations of pancreatic parenchyma of the lizard. Contrarily, it was not seen either in pigeon or in toad pancreases parenchyma. Spleen of all animals showed the fucose residues in some splenic cells in the red pulp only, barring the white pulp. The liver parenchyma of all tetrapoda representatives hadn't fucose residues. The fucose cellular biodistribution in some cells of tetrapoda representatives differed based on the cell type. In the mouse, it was highly seen in the apical cytoplasm of the villi M cells as well as in the cup-like part of goblet cells. In addition, it was seen as "rings" in the granule membranes of the Ulex europeaus agglutinin I (UEAI(+)) cells in the intestinal crypts cells. Furthermore, the UEAI(+) cells in the lamina propria showed fucose granules in their cytoplasm. There is no clear evidence about the relation between the cellular biosynthesis of fucose residues and mucosal immune cells. The role of fucose residues in the pancreatic acinar cells are not well understood and need further investigations. In this study, fucose residues were synthesized in several types of cells in the mouse ileum, spleen and pancreas as compared with other tetrapoda. The data obtained from this study can help us to get more information about the cellular biodistribution and synthesis of fucose residues in several animal species rather than mammalians.
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Affiliation(s)
- Aziz Awaad
- Department of Zoology, Faculty of Science, Sohag University, Sohag 82524, Egypt.
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7
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Isla Larrain M, Demichelis S, Crespo M, Lacunza E, Barbera A, Cretón A, Terrier F, Segal-Eiras A, Croce MV. Breast cancer humoral immune response: involvement of Lewis y through the detection of circulating immune complexes and association with Mucin 1 (MUC1). JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2009; 28:121. [PMID: 19715603 PMCID: PMC2743658 DOI: 10.1186/1756-9966-28-121] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 08/28/2009] [Indexed: 11/21/2022]
Abstract
Background In cancer patients, MUC1 glycoprotein may carry Lewis y which could be involved in immune response. Purposes: 1- to evaluate the presence of Lewis y and MUC1 in circulating immune complexes (Lewis y/CIC and MUC1/CIC, respectively) and their correlation; 2- to analyze the possible presence of Lewis y in carbohydrate chains of tumoral MUC1 glycoprotein and 3- to correlate serum and tissue parameters considered. Methods Pretreatment serum and tissue breast samples from 76 adenocarcinoma, 34 benign and 36 normal specimens were analyzed. Anti-MUC1 and anti-Lewis y MAbs were employed. To detect Lewis y/CIC and MUC1/CIC, ELISA tests were developed; serum samples containing MUC1 were previously selected by Cancer Associated Serum Antigen (CASA). Immunoprecipitation (IP) was performed in 9 malignant, benign and normal samples and analyzed by SDS-PAGE and Western blot. Lewis y and MUC1 expression was studied by immunohistochemistry (IHC). Statistical analysis was performed employing principal component analysis (PCA), ANOVA, Tukey HSD, Chi square test and classical correlation (p < 0.05). Results By ELISA, Lewis y/IgM/CIC levels showed statistically significant differences between breast cancer versus benign and normal samples; mean ± SD values expressed in OD units were: 0.525 ± 0.304; 0.968 ± 0.482 and 0.928 ± 0.447, for breast cancer, benign disease and normal samples, respectively, p < 0.05. Lewis y/IgG/CIC did not show any statistically significant difference. MUC1/IgM/CIC correlated with Lewis y/IgM/CIC. By CASA, 9 samples with MUC1 values above the cut off were selected and IP was performed, followed by SDS-PAGE and Western blot; bands at 200 kDa were obtained with each MAb in all the samples. By IHC, with C14 MAb, 47.5%, 31% and 35% of malignant, benign and normal samples, respectively, showed positive reaction while all the samples were positive with anti-MUC1 MAb; in both cases, with a different pattern of expression between malignant and non malignant samples. Conclusion Our findings support that in breast cancer there was a limited humoral immune response through Lewis y/IgM/CIC levels detection which correlated with MUC1/IgM/CIC. We also found that Lewis y might be part of circulating MUC1 glycoform structure and also that Lewis y/CIC did not correlate with Lewis y expression.
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Affiliation(s)
- Marina Isla Larrain
- Centre for Basic and Applied Immunological Research, Faculty of Medical Sciences, National University of La Plata, Buenos Aires, Argentina.
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Farrand S, Hotze E, Friese P, Hollingshead SK, Smith DF, Cummings RD, Dale GL, Tweten RK. Characterization of a streptococcal cholesterol-dependent cytolysin with a lewis y and b specific lectin domain. Biochemistry 2008; 47:7097-107. [PMID: 18553932 PMCID: PMC2622431 DOI: 10.1021/bi8005835] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cholesterol-dependent cytolysins (CDCs) are a large family of pore-forming toxins that often exhibit distinct structural changes that modify their pore-forming activity. A soluble platelet aggregation factor from Streptococcus mitis (Sm-hPAF) was characterized and shown to be a functional CDC with an amino-terminal fucose-binding lectin domain. Sm-hPAF, or lectinolysin (LLY) as renamed herein, is most closely related to CDCs from Streptococcus intermedius (ILY) and Streptococcus pneumoniae (pneumolysin or PLY). The LLY gene was identified in strains of S. mitis, S. pneumoniae, and Streptococcus pseudopneumoniae. LLY induces pore-dependent changes in the light scattering properties of the platelets that mimic those induced by platelet aggregation but does not induce platelet aggregation. LLY monomers form the typical large homooligomeric membrane pore complex observed for the CDCs. The pore-forming activity of LLY on platelets is modulated by the amino-terminal lectin domain, a structure that is not present in other CDCs. Glycan microarray analysis showed the lectin domain is specific for difucosylated glycans within Lewis b (Le (b)) and Lewis y (Le (y)) antigens. The glycan-binding site is occluded in the soluble monomer of LLY but is apparently exposed after cell binding, since it significantly increases LLY pore-forming activity in a glycan-dependent manner. Hence, LLY represents a new class of CDC whose pore-forming mechanism is modulated by a glycan-binding domain.
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Affiliation(s)
- Stephen Farrand
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA
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Zhang Z, Sun P, Liu J, Fu L, Yan J, Liu Y, Yu L, Wang X, Yan Q. Suppression of FUT1/FUT4 expression by siRNA inhibits tumor growth. BIOCHIMICA ET BIOPHYSICA ACTA 2008; 1783:287-96. [PMID: 18023290 DOI: 10.1016/j.bbamcr.2007.10.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2007] [Revised: 10/10/2007] [Accepted: 10/11/2007] [Indexed: 12/29/2022]
Abstract
Lewis Y (LeY) antigen is highly expressed in a variety of human carcinomas of epithelial cell origin. Recent studies suggest functional blockade of LeY may provide a novel therapeutic approach for the treatment of cancers. However, suppressing LeY expression by genetic manipulation and its impact on neoplastic cell proliferation has not been investigated. We report here that different fucosyltransferases (FUTs) were expressed with the greatest expression of fucosyltransferase I or IV (FUT1/4), the two key enzymes for the synthesis of LeY in human epidermoid carcinoma A431 cells. Knocking down FUT1/4 expression by short interfering RNA technique dramatically reduced the expression of FUT1/4 and LeY and inhibited cell proliferation through decreasing epidermal growth factor receptor (EGFR) signaling pathway. Treatment of A431 cells that were inoculated into the nude mice with FUT1 siRNA or FUT4 siRNA greatly impeded tumor growth. Suppressing FUT1/4 expression also blocked EGF-induced tyrosine phosphorylation of EGFR and mitogen-activated protein kinases. In conclusion, suppressing the expression of FUT1/4 by RNAi technology reduces the synthesis of LeY and inhibits cancer growth. It may serve as a potential methodology for the treatment of cancers that express LeY glycoconjugates.
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Affiliation(s)
- Zhenbo Zhang
- Department of Biochemistry and Molecular Biology, Dalian Medical University, Liaoning Provincial Core Lab of Glycobiology and Glycoengineering, Dalian 116027, People's Republic of China
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10
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Szekanecz E, Sándor Z, Antal-Szalmás P, Soós L, Lakos G, Besenyei T, Szentpétery A, Simkovics E, Szántó J, Kiss E, Koch AE, Szekanecz Z. Increased production of the soluble tumor-associated antigens CA19-9, CA125, and CA15-3 in rheumatoid arthritis: potential adhesion molecules in synovial inflammation? Ann N Y Acad Sci 2007; 1108:359-71. [PMID: 17893999 DOI: 10.1196/annals.1422.037] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Some tumor-associated antigens (TAAs) are expressed on inflammatory cells. We previously detected carcinoembryonic antigen (CEA; CD66) in the rheumatoid (RA) synovium. The production of CEA, CA19-9, CA125, and CA15.3, may be increased in patients with RA, scleroderma, lupus, and Sjögren's syndrome (SS). Some of these TAAs contain sialylated carbohydrate motifs and they are involved in tumor-associated cell adhesion and metastasis. We assessed levels of TAAs in the sera of RA patients and healthy subjects. Serum TAA levels were correlated with disease markers including serum rheumatoid factor (RF), C-reactive protein (CRP), and anti-CCP antibody levels, DAS28, age disease duration. TAAs including CEA, CA15-3, CA72-4, CA125, and CA19-9, and neuron-specific enolase (NSE) were assessed by immunoassay in the sera of 75 patients with RA and 50 age- and sex-matched healthy controls. Normal upper limits for these TAAs were 3.4 microg/L, 25 kU/L, 6.9 kU/L, 35 kU/L, 34 kU/L, and 16.3 microg/L, respectively. There were significantly more RA patients showing abnormally high levels of CA125 (10.8% versus 7.1%), CA19-9 (8.1% versus 0%), and CA15-3 (17.6% versus 14.3%) in comparison to controls (P < 0.05). The mean absolute serum levels of CA125 (23.9 +/- 1.8 versus 16.8 +/- 2.2 kU/L) and CA19-9 (14.2 +/- 1.2 versus 10.5 +/- 1.6 kU/L) were also significantly higher in RA compared to controls (P < 0.05). Among RA patients, serum CEA showed significant correlation with RF (r = 0.270; P < 0.05). None of the assessed TAAs showed any correlation with CRP, anti-CCP, DAS28, age or disease duration. The concentration of some TAAs may be elevated in the sera of patients with established RA in comparison to healthy subjects. CEA, CA19-9, CA125, and CA15-3 contain carbohydrate motifs and thus they may be involved in synovitis-associated adhesive events. Furthermore, some TAAs, such as CEA, may also correlate with prognostic factors, such as serum RF levels.
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Affiliation(s)
- Eva Szekanecz
- Department of Oncology, University of Debrecen Medical and Health Science Center, Debrecen, Hungary
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Farhan H, Schuster C, Klinger M, Weisz E, Waxenecker G, Schuster M, Sexl V, Mudde GC, Freissmuth M, Kircheis R. Inhibition of xenograft tumor growth and down-regulation of ErbB receptors by an antibody directed against Lewis Y antigen. J Pharmacol Exp Ther 2006; 319:1459-66. [PMID: 16963623 DOI: 10.1124/jpet.106.107318] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The blood group-related Lewis Y antigen is expressed on the majority of human cancers of epithelial origin with only limited expression on normal tissue. Therefore, the Lewis Y antigen represents an interesting candidate for antibody-based treatment strategies. Previous experiments showed that the humanized Lewis Y-specific monoclonal antibody, IGN311, reduced ErbB-receptor-mediated stimulation of mitogen-activated protein kinase by altering receptor recycling. Here, we tested whether binding of IGN311 to growth factor receptors is relevant also to inhibition of tumor growth in vivo. Prolonged incubation with IGN311 of human tumor cell lines, which express high levels of ErbB1 (A431) or ErbB2 (SK-BR-3), resulted in down-regulation of the receptors and inhibition of cell proliferation. IGN311 inhibited the growth of tumors derived from A431 cells xenografted in nude mice. Treatment with IGN311 was associated with a down-regulation of ErbB1 in the excised tumor tissue. Importantly, these effects of IGN311 were also mimicked by the Fab fragment of IGN311. These data indicate that tumor cell growth inhibition by IGN311 cannot solely be accounted for by invoking cellular and humoral immunological mechanisms. A direct effect on signaling via binding to Lewis Y glycosylated growth factor receptors on tumor cells is also likely to contribute to the therapeutic effect of IGN311 in vivo.
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Affiliation(s)
- Hesso Farhan
- Institute of Pharmacology, Center of Biomolecular Medicine and Pharmacology, Medical University of Vienna, Waehringer Str. 13a, A-1090 Vienna, Austria
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Cross A, Bakstad D, Allen JC, Thomas L, Moots RJ, Edwards SW. Neutrophil gene expression in rheumatoid arthritis. PATHOPHYSIOLOGY 2005; 12:191-202. [PMID: 16112850 DOI: 10.1016/j.pathophys.2005.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
There is now a growing awareness that infiltrating neutrophils play an important role in the molecular pathology of rheumatoid arthritis. In part, this arises from the fact that neutrophils have potent cytotoxic activity, but additionally from the fact that inflammatory neutrophils can generate a number of cytokines and chemokines that can have a direct influence on the progress of an inflammatory episode. Furthermore, the molecular properties of inflammatory neutrophils are quite different from those normally found in the circulation. For example, inflammatory neutrophils, but not blood neutrophils, can express cell surface receptors (such as MHC Class II molecules and FcgammaRI) that dramatically alter the way in which these cells can interact with ligands to modulate immune function. Cytokine/chemokine expression and surface expression of these novel cell surface receptors is dependent upon the neutrophil responding to local environmental factors to selectively up-regulate the expression of key cellular components via signalling pathways coupled to transcriptional activation. However, major changes in the expression levels of some proteins are also regulated by post-translational modifications that alter rates of proteolysis, and hence changes in the steady-state levels of these molecules.
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Affiliation(s)
- Andrew Cross
- School of Biological Sciences, Biosciences Building, University of Liverpool, Liverpool L69 7ZB, UK
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