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Lee J, Lee JM, Kim HS, Jung J, Kim Y, Park SY, Kim M, Han E. Twins With an Identical Novel Mutation in ITGB3: A Case Report of Glanzmann Thrombasthenia-like Syndrome. Ann Lab Med 2024; 44:299-302. [PMID: 38151855 PMCID: PMC10813824 DOI: 10.3343/alm.2023.0375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/23/2023] [Accepted: 12/08/2023] [Indexed: 12/29/2023] Open
Affiliation(s)
- Jaewoong Lee
- Department of Laboratory Medicine, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong-Mi Lee
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hoon Seok Kim
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jin Jung
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Suk Young Park
- Department of Oncology-Hematology, Konyang University Hospital, Daejeon, Korea
| | - Myungshin Kim
- Department of Laboratory Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eunhee Han
- Department of Laboratory Medicine, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Tang Z, Lin F, Chen Z, Yu B, Liu JH, Liu X. 4'- O-MethylbavachalconeB Targeted 14-3-3ζ Blocking the Integrin β3 Early Outside-In Signal to Inhibit Platelet Aggregation and Thrombosis. J Agric Food Chem 2024; 72:7043-7054. [PMID: 38509000 DOI: 10.1021/acs.jafc.3c05211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
14-3-3ζ protein, the key target in the regulation and control of integrin β3 outside-in signaling, is an attractive new strategy to inhibit thrombosis without affecting hemostasis. In this study, 4'-O-methylbavachalconeB (4-O-MB) in Psoraleae Fructus was identified as a 14-3-3ζ ligand with antithrombosis activity by target fishing combined with ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) analysis. The competitive inhibition analysis showed that 4-O-MB targeted 14-3-3ζ and blocked the 14-3-3ζ/integrin β3 interaction with inhibition constant (Ki) values of 9.98 ± 0.22 μM. Molecular docking and amino acid mutation experiments confirmed that 4-O-MB specifically bound to 14-3-3ζ through LSY9 and SER28 to regulate the 14-3-3ζ/integrin β3 interaction. Besides, 4-O-MB affected the integrin β3 early outside-in signal by inhibiting AKT and c-Src phosphorylation. Meanwhile, 4-O-MB could inhibit ADP-, collagen-, or thrombin-induced platelet aggregation function but had no effect on platelet adhesion to collagen-coated surfaces in vivo. Administration of 4-O-MB could significantly inhibit thrombosis formation without disturbing hemostasis in mice. These findings provide new prospects for the antithrombotic effects of Psoraleae Fructus and the potential application of 4-O-MB as lead compounds in the therapy of thrombosis by targeting 14-3-3ζ.
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Affiliation(s)
- Ziqi Tang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Fanqi Lin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Zhiwen Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Boyang Yu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, P. R. China
- Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Ji-Hua Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, P. R. China
- Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Xiufeng Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, P. R. China
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing 211198, P. R. China
- Research Center for Traceability and Standardization of TCMs, China Pharmaceutical University, Nanjing 211198, P. R. China
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Chang YJ, Prince GMSH, Wei PL, Batzorig U, Huang CY, Hung CS, Chang TC. The role of thrombomodulin in modulating ITGB3 expression and its implications for triple-negative breast cancer progression. Cell Biol Int 2024; 48:216-228. [PMID: 38081783 DOI: 10.1002/cbin.12104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 11/18/2023] [Indexed: 01/18/2024]
Abstract
Triple-negative breast cancer (TNBC) is the most aggressive subtype of breast cancer (BC) compared to other BC subtypes in clinical settings. Currently, there are no effective therapeutic strategies for TNBC treatment. Therefore, there is an urgent need to identify suitable biomarkers or therapeutic targets for TNBC patients. Thrombomodulin (TM) plays a role in cancer progression and metastasis in many different cancers. However, the role of TM in TNBC is not yet fully understood. First, silenced-TM in MDA-MB-231 cells caused an increase in proliferative and metastatic activity. In contrast, overexpression of TM in Hs578T cells caused a reduction in proliferation, invasion, and migration rate. Using RNA-seq analysis, we found that Integrin beta 3 (ITGB3) expression may be a downstream target of TM. Furthermore, we found an increase in ITGB3 levels in TM-KD cells by QPCR and western blot analysis but a decrease in ITGB3 levels in TM-overexpressing cells. We found phospho-smad2/3 levels were increased in TM-KD cells but decreased in TM-overexpressing cells. This implies that TM negatively regulates ITGB3 levels through the activation of the smad2/3 pathway. Silencing ITGB3 in TM-KD cells caused a decrease in proliferation and migration. Finally, we found that higher ITGB3 levels were correlated with poor overall survival and relapse-free survival in patients with TNBC. Our results indicated a novel regulatory relationship between TM and ITGB3 in TNBC.
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Affiliation(s)
- Yu-Jia Chang
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Medical Research, Cancer Research Center and Translational Laboratory, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | | | - Po-Li Wei
- Department of Medical Research, Cancer Research Center and Translational Laboratory, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, Division of Colorectal Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Department of Surgery, College of Medicine, School of Medicine, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei, Taiwan
| | - Uyanga Batzorig
- Department of Dermatology, University of California, San Diego, La Jolla, California, USA
| | - Chien-Yu Huang
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Chin-Sheng Hung
- Department of Surgery, Division of Colorectal Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - Tung-Cheng Chang
- Department of Surgery, Division of Colorectal Surgery, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Taipei Medical University Shuang-Ho Hospital, New Taipei City, Taiwan
- Division of Colorectal Surgery, Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Hu C, Deng J, Liu M, Ni T, Chen ZJ, Yan J, Li Y. Endometrial BMP2 Deficiency Impairs ITGB3-Mediated Trophoblast Invasion in Women With Repeated Implantation Failure. Endocrinology 2024; 165:bqae002. [PMID: 38195194 DOI: 10.1210/endocr/bqae002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 01/11/2024]
Abstract
BACKGROUND Repeated implantation failure (RIF) leads to a waste of high-quality embryos and remains a challenge in assisted reproductive technology. During early human placentation, the invasion of trophoblast cells into the decidua is an essential step for the establishment of maternal-fetal interactions and subsequent successful pregnancy. Bone morphogenetic protein 2 (BMP2) has been reported to regulate endometrial receptivity and promote trophoblast invasion. However, whether there is dysregulation of endometrial BMP2 expression in patients with RIF remains unknown. Additionally, the molecular mechanisms underlying the effects of BMP2 on human trophoblast invasion and early placentation remain to be further elucidated. METHODS Midluteal phase endometrial samples were biopsied from patients with RIF and from routine control in vitro fertilization followed by quantitative polymerase chain reaction and immunoblotting analyses. Human trophoblast organoids, primary human trophoblast cells, and an immortalized trophoblast cell line (HTR8/SVneo) were used as study models. RESULTS We found that BMP2 was aberrantly low in midluteal phase endometrial tissues from patients with RIF. Recombinant human BMP2 treatment upregulated integrin β3 (ITGB3) in a SMAD2/3-SMAD4 signaling-dependent manner in both HTR8/SVneo cells and primary trophoblast cells. siRNA-mediated integrin β3 downregulation reduced both basal and BMP2-upregulated trophoblast invasion and vascular mimicry in HTR8/SVneo cells. Importantly, shRNA-mediated ITGB3 knockdown significantly decreased the formation ability of human trophoblast organoids. CONCLUSION Our results demonstrate endometrial BMP2 deficiency in patients with RIF. ITGB3 mediates both basal and BMP2-promoted human trophoblast invasion and is essential for early placentation. These findings broaden our knowledge regarding the regulation of early placentation and provide candidate diagnostic and therapeutic targets for RIF clinical management.
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Affiliation(s)
- Cuiping Hu
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China
- Medical Integration and Practice Center, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
| | - Jianye Deng
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- Medical Integration and Practice Center, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
| | - Mingxi Liu
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- Medical Integration and Practice Center, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
| | - Tianxiang Ni
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
| | - Zi-Jiang Chen
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Shandong University, Jinan, Shandong, 250012, China
- Medical Integration and Practice Center, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
- Research Unit of Gametogenesis and Health of ART-Offspring, Chinese Academy of Medical Sciences (No. 2021RU001), Jinan, Shandong, 250012, China
| | - Junhao Yan
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
| | - Yan Li
- Institute of Women, Children and Reproductive Health, Shandong University, Jinan, Shandong, 250012, China
- Medical Integration and Practice Center, Shandong University, Jinan, Shandong, 250012, China
- Key Laboratory of Reproductive Endocrinology (Shandong University), Ministry of Education, Jinan, Shandong, 250012, China
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Wang D, Lai P, Lu Q, El-Magd MA, Li X. Effect of c.1431C > T mutation, a causative mutation of Glanzmann's thrombasthenia, on ITGB3 splicing, gene and protein expression. Gene 2023; 888:147805. [PMID: 37716584 DOI: 10.1016/j.gene.2023.147805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/01/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND/AIM Recently, it was reported that the non-synonymous c.1431C > T (p. G477=) mutation of the integrin subunit β3 (ITGB3) gene is the cause of Glanzmann's thrombasthenia (GT). However, the functional consequences of this mutation on the ITGB3 gene and protein expression remain to be elucidated. Therefore, this study was conducted to cover this scientific shortage. METHODS Peripheral blood samples were collected from Chinese family members (parents and proband and his sister), and DNA was extracted and sequenced using whole-exome and Sanger sequencing. The effect of c.1431C > T mutation on the splicing of mRNA was verified by the in vitro minigene assay and the three variants that resulted from the mutation were cloned into a phage vector and pEGFP-C1 vector, and ITGB3 gene and protein expression was detected in the transfected 293 T cells using qPCR and Western blotting. RESULTS Minigene splicing assay showed that c.1431C > T mutation causes three kinds of alternative splicing; (1) a 95 bp deletion in the middle of exon10, (2) a 155 bp deletion (95 bp deletion in the middle of exon10 plus a 60 bp deletion in the right side of exon10), and (3) a 261 bp deletion in the right side of exon10. The in vitro expression assay showed that the c.1431C > T variant did not affect the ITGB3 mRNA levels, but directly led to protein truncation and declined expression. CONCLUSION Due to its significant impact on protein expression, c.1431C > T mutation in ITGB3 could be considered a pathogenic variant of GT. This could enrich the ITGB3 mutation spectrum and provide a base for the genetic diagnosis of GT.
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Affiliation(s)
- Dayan Wang
- Department of Pediatrics, Jinhua Maternal and Child Health Care Hospital, Jinhua Hospital of Zhejiang University School of Medicine, Jinhua City 321000, Zhejiang Province, China
| | - Panjian Lai
- Department of Pediatrics, Jinhua Maternal and Child Health Care Hospital, Jinhua Hospital of Zhejiang University School of Medicine, Jinhua City 321000, Zhejiang Province, China
| | - Qiaochun Lu
- Department of Pediatrics, Jinhua Maternal and Child Health Care Hospital, Jinhua Hospital of Zhejiang University School of Medicine, Jinhua City 321000, Zhejiang Province, China
| | - Mohammed A El-Magd
- Department of Anatomy & Embryology, Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt.
| | - Xiaobing Li
- Department of Pediatrics, Jinhua Maternal and Child Health Care Hospital, Jinhua Hospital of Zhejiang University School of Medicine, Jinhua City 321000, Zhejiang Province, China.
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Zhang J, Tang J, Li G, Li N, Wang J, Yao R, Yu T. SINE-VNTR-Alu retrotransposon insertion as a novel mutational event underlying Glanzmann thrombasthenia. J Thromb Haemost 2023; 21:3597-3607. [PMID: 37604334 DOI: 10.1016/j.jtha.2023.08.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 08/01/2023] [Accepted: 08/06/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Glanzmann thrombasthenia (GT) is an autosomal recessive platelet aggregation disorder caused by mutations in ITGA2B or ITGB3. OBJECTIVES We aimed to assess the phenotype and investigate the genetic etiology of a GT pedigree. METHODS A patient with bleeding manifestations and mild mental retardation was enrolled. Complete blood count, coagulation, and platelet aggregation tests were performed. Causal mutations were identified via whole exome and genome sequencing and subsequently confirmed through polymerase chain reaction and Sanger sequencing. The transcription of ITGB3 was characterized using RNA sequencing and reverse transcription polymerase chain reaction. The αⅡb and β3 biosynthesis was investigated via whole blood flow cytometry and in vitro studies. RESULTS GT was diagnosed in a patient with defective platelet aggregation. Novel compound heterozygous ITGB3 variants were identified, with a maternal nonsense mutation (c.2222G>A, p.Trp741∗) and a paternal SINE-VNTR-Alu (SVA) retrotransposon insertion. The 5' truncated SVA element was inserted in a sense orientation in intron 11 of ITGB3, resulting in aberrant splicing of ITGB3 and significantly reducing β3 protein content. Meanwhile, both the expression and transportation of β3 were damaged by the ITGB3 c.2222G>A. Almost no αⅡb and β3 expressions were detected on the patient's platelets surface. CONCLUSION Novel compound heterozygous ITGB3 mutations were identified in the GT pedigree, resulting in defects of αⅡbβ3 biosynthesis. This is the first report of SVA retrotransposon insertion in the genetic pathogenesis of GT. Our study highlights the importance of combining multiple high-throughput sequencing technologies for the molecular diagnosis of genetic disorders.
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Affiliation(s)
- Jiasheng Zhang
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Tang
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guoqiang Li
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Niu Li
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jian Wang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ruen Yao
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Tingting Yu
- Department of Medical Genetics and Molecular Diagnostic Laboratory, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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Komeno Y, Uchiyama T, Kawano F, Kurihara Y, Kurokawa M, Ohara O, Kunishima S, Ishiguro A. Inherited macrothrombocytopenia due to a novel splice donor site mutation in ITGB3. Ann Hematol 2023; 102:2947-2949. [PMID: 37515626 DOI: 10.1007/s00277-023-05387-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 07/24/2023] [Indexed: 07/31/2023]
Affiliation(s)
- Yukiko Komeno
- Department of Hematology, Japan Community Healthcare Organization (JCHO) Tokyo Yamate Medical Center, Tokyo, Japan.
| | - Toru Uchiyama
- Department of Human Genetics, National Center for Child Health and Development, Tokyo, Japan
| | - Fuyuko Kawano
- Division of Advanced Medicine for Virus Infections, National Center for Child Health and Development, Tokyo, Japan
| | - Yuya Kurihara
- Department of Hematology and Oncology, The University of Tokyo, Tokyo, Japan
| | - Mineo Kurokawa
- Department of Hematology and Oncology, The University of Tokyo, Tokyo, Japan
| | - Osamu Ohara
- Department of Applied Genomics, Kazusa DNA Research Institute, Chiba, Japan
| | - Shinji Kunishima
- Department of Medical Technology, Gifu University of Medical Science, Gifu, Japan
| | - Akira Ishiguro
- Division of Hematology, National Center for Child Health and Development, Tokyo, Japan
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Handwerk CJ, Denzler CJ, Kalinowski AR, Cook HN, Rodriguez HV, Bland KM, Brett CA, Swinehart BD, Vinson EC, Vidal GS. Integrin β3 regulates apical dendritic morphology of pyramidal neurons throughout hippocampal CA3. Hippocampus 2023; 33:936-947. [PMID: 36967540 PMCID: PMC10952146 DOI: 10.1002/hipo.23530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
In excitatory hippocampal pyramidal neurons, integrin β3 is critical for synaptic maturation and plasticity in vitro. Itgb3 is a potential autism susceptibility gene that regulates dendritic morphology in the cerebral cortex in a cell-specific manner. However, it is unknown what role Itgb3 could have in regulating hippocampal pyramidal dendritic morphology in vivo, a key feature that is aberrant in many forms of autism and intellectual disability. We found that Itgb3 mRNA is expressed in the stratum pyramidale of CA3. We examined the apical dendritic morphology of CA3 hippocampal pyramidal neurons in conditional Itgb3 knockouts and controls, utilizing the Thy1-GFP-M line. We fully reconstructed the apical dendrite of each neuron and determined each neuron's precise location along the dorsoventral, proximodistal, and radial axes of the stratum pyramidale. We found a very strong effect for Itgb3 expression on CA3 apical dendritic morphology: neurons from conditional Itgb3 knockouts had longer and thinner apical dendrites than controls, particularly in higher branch orders. We also assessed potential relationships between pairs of topographic or morphological variables, finding that most variable pairs were free from any linear relationships to each other. We also found that some neurons from controls, but not conditional Itgb3 knockouts, had a graded pattern of overall diameter along the dorsoventral and proximodistal axes of the stratum pyramidale of CA3. Taken together, Itgb3 is essential for constructing normal dendritic morphology in pyramidal neurons throughout CA3.
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Affiliation(s)
| | - Collin J. Denzler
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Anna R. Kalinowski
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Hollyn N. Cook
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Hilda V. Rodriguez
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Katherine M. Bland
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Cooper A. Brett
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Brian D. Swinehart
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - Elizabeth C. Vinson
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
| | - George S. Vidal
- Department of BiologyJames Madison UniversityMSC 7801, HarrisonburgVirginia22807USA
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Hu R, Huang Y, Song Y, Wu X, Song K, Huang G, Zhang M, Dong H. Effect of acupuncture on the opening time of implantation window and endometrial receptivity in controlled ovarian hyperstimulation rats during peri-implantation period. Front Endocrinol (Lausanne) 2023; 14:1110266. [PMID: 37008940 PMCID: PMC10064091 DOI: 10.3389/fendo.2023.1110266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/28/2023] [Indexed: 03/19/2023] Open
Abstract
PURPOSE To investigate the effect of acupuncture for improving the pregnancy rate of COH rats from the viewpoint of regulating the opening time of the implantation window and endometrial receptivity. METHODS Experimental rats were randomly divided into normal group (N), model group (M) and acupuncture group(A), and samples were collected on Day 4, 5 and 6 after mating. COH rats were treated with acupuncture at SP6, LR3, and ST36 once a day for 7 times. The pinopodes were observed under a scanning electron microscope. Serum estrogen and progesterone levels were measured via ELISA. The protein and mRNA levels of estrogen receptor (ER), progesterone receptor (PR), leukemia inhibitory factor (LIF), integrin β3, vascular endothelial growth factor (VEGF), and fibroblast growth factor 2 (FGF-2) in the endometrium were evaluated via West-blot, immunohistochemistry, and PCR. RESULTS Compared with group N, the pregnancy rate of group M was significantly decreased (P<0.05), and the abnormal serum hormone levels and implantation window advancement were observed. Compared with group M, the pregnancy rate of group A was significantly increased (P<0.05), the supraphysiological serum progesterone levels were restored to normalcy (P<0.05), and the advanced implantation window was restored to a certain extent. Further, the abnormal ER, PR, LIF, integrin β3, VEGF, and FGF-2 expression levels of the endometrium got recovered to varying degrees. CONCLUSION Acupuncture may restore the estrogen and progesterone balance in COH rats and the forward shift of the implantation window to a certain extent, improving the endometrial receptivity and finally improving the pregnancy rate of COH rats.
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Affiliation(s)
- Runan Hu
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanjing Huang
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yufan Song
- Institute of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Wu
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kunkun Song
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guangying Huang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Mingmin Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Haoxu Dong
- Department of Integrated Traditional Chinese and Western Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
- *Correspondence: Haoxu Dong,
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Cheng C, Liu D, Liu Z, Li M, Wang Y, Sun B, Kong R, Chen H, Wang G, Li L, Hu J, Li Y, Chen H, Zhao Z, Zhang T, Zhu S, Pan S. Positive feedback regulation of lncRNA TPT1-AS1 and ITGB3 promotes cell growth and metastasis in pancreatic cancer. Cancer Sci 2022; 113:2986-3001. [PMID: 35534983 PMCID: PMC9459417 DOI: 10.1111/cas.15388] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/08/2022] [Accepted: 04/18/2022] [Indexed: 11/29/2022] Open
Abstract
Emerging evidence has indicated that long noncoding RNAs (lncRNAs) are potential biomarkers and play crucial roles in cancer development. However, the functions and underlying mechanisms of lncRNA TPT1-AS1 in pancreatic ductal adenocarcinoma (PDAC) remain elusive. RNAseq data of PDAC tissues and normal tissues were analyzed, and lncRNAs which were associated with PDAC prognosis were identified. The clinical relevance of TPT1-AS1 for PDAC patients was explored, and the effects of TPT1-AS1 in PDAC progression were investigated in vitro and in vivo. LncRNA TPT1-AS1 was highly expressed in PDAC, and high TPT1-AS1 levels predicted a poor prognosis. Moreover, functional experiments revealed that TPT1-AS1 promoted pancreatic cancer cell proliferation, migration, invasion, and epithelial-to-mesenchymal transition (EMT) process in vitro and in vivo. Mechanistically, TPT1-AS1 functioned as an endogenous sponge for miR-30a-5p, which increased integrin β3 (ITGB3) level in pancreatic cancer cells. Conversely, our data revealed that ITGB3 could activate the transcription factor signal transducer and activator of transcription 3 (STAT3), which in turn bound directly to the TPT1-AS1 promoter and affected the expression of TPT1-AS1, thus forming a positive feedback loop with TPT1-AS1. Taken together, our results uncovered a reciprocal loop of TPT1-AS1 and ITGB3 which contributed to pancreatic cancer growth and development, and indicated that TPT1-AS1 might serve as a novel potential diagnostic biomarker and therapeutic target for PDAC patients.
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Affiliation(s)
- Chundong Cheng
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Danxi Liu
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Zonglin Liu
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Mengyang Li
- Department of Medical OncologyThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
| | - Yongwei Wang
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Bei Sun
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Rui Kong
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Hua Chen
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Gang Wang
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Le Li
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Jisheng Hu
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Yilong Li
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Hongze Chen
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Zhongjie Zhao
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Tao Zhang
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Siqiang Zhu
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
| | - Shangha Pan
- Department of Pancreatic and Biliary SurgeryThe First Affiliated Hospital of Harbin Medical UniversityHarbinChina
- Key Laboratory of Hepatosplenic SurgeryMinistry of EducationHarbinChina
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11
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Sun Q, Lu Z, Zhang Y, Xue D, Xia H, She J, Li F. Integrin β3 Promotes Resistance to EGFR-TKI in Non-Small-Cell Lung Cancer by Upregulating AXL through the YAP Pathway. Cells 2022; 11:cells11132078. [PMID: 35805163 PMCID: PMC9265629 DOI: 10.3390/cells11132078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/24/2022] Open
Abstract
Integrin β3 plays a key role in the resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKI), but the development of integrin β3 inhibitors has been stalled due to the failure of phase III clinical trials for cancer treatment. Therefore, it is imperative to find a potentially effective solution to the problem of acquired resistance to EGFR-TKI for patients with integrin-β3 positive non-small-cell lung cancer (NSCLC) by exploring novel downstream targets and action mechanisms of integrin β3. In the present study, we observed that the expression of integrin β3 and AXL was significantly upregulated in erlotinib-resistant NSCLC cell lines, which was further confirmed clinically in tumor specimens from patients with NSCLC who developed acquired resistance to erlotinib. Through ectopic expression or knockdown, we found that AXL expression was positively regulated by integrin β3. In addition, integrin β3 promoted erlotinib resistance in NSCLC cells by upregulating AXL expression. Furthermore, the YAP pathway, rather than pathways associated with ERK or AKT, was involved in the regulation of AXL by integrin β3. To investigate the clinical significance of this finding, the current well-known AXL inhibitor R428 was tested, demonstrating that R428 significantly inhibited resistance to erlotinib, colony formation, epithelial–mesenchymal transformation and cell migration induced by integrin β3. In conclusion, integrin β3 could promote resistance to EGFR-TKI in NSCLC by upregulating the expression of AXL through the YAP pathway. Patients with advanced NSCLC, who are positive for integrin β3, might benefit from a combination of AXL inhibitors and EGFR-TKI therapy.
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Affiliation(s)
- Qi Sun
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China; (Q.S.); (D.X.); (J.S.)
| | - Zhihua Lu
- Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266000, China;
| | - Yanpeng Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China;
| | - Dong Xue
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China; (Q.S.); (D.X.); (J.S.)
| | - Huayu Xia
- Xi’an Jiaotong University Health Science Center, Xi’an Jiaotong University, Xi’an 710061, China;
| | - Junjun She
- Department of General Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China; (Q.S.); (D.X.); (J.S.)
| | - Fanni Li
- Department of Talent Highland, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
- Correspondence:
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12
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Meisaprow P, Aksorn N, Vinayanuwattikun C, Chanvorachote P, Sukprasansap M. Caffeine Induces G0/G1 Cell Cycle Arrest and Inhibits Migration through Integrin αv, β3, and FAK/Akt/c-Myc Signaling Pathway. Molecules 2021; 26:molecules26247659. [PMID: 34946741 PMCID: PMC8706725 DOI: 10.3390/molecules26247659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is recognized as a major cause of mortality worldwide owing to its metastatic activity. Given the lack of solid information regarding the possible effects of caffeine, one of the most consumed natural psychoactive substances, on molecular signaling pathways implicated in the aggressive behavior of lung cancer, our study aimed to evaluate the effect and mechanism of caffeine on metastasis-related mechanisms. The results revealed that caffeine treatment at concentrations of 0–500 µM caused no direct cytotoxic effects on NCI-H23 cells. Treatment of cells with caffeine showed good potential to inhibit cell proliferation at 48 h and induced significant cell cycle arrest at the G0/G1 phase. Concerning metastasis, caffeine was shown to reduce filopodia formation, inhibit migration and invasion capability, and reduce the ability of cancer cells to survive and grow in an anchorage-independent manner. Moreover, caffeine could attenuate the formation of 3D tumor spheroids in cancer stem cell (CSC)-enriched populations. With regard to mechanisms, we found that caffeine significantly altered the integrin pattern of the treated cells and caused the downregulation of metastasis-associated integrins, namely, integrins αv and β3. Subsequently, the downstream signals, including protein signaling and transcription factors, namely, phosphorylated focal adhesion kinase (p-FAK), phosphorylated protein kinase B (p-Akt), cell division cycle 42 (Cdc42), and c-Myc, were significantly decreased in caffeine-exposed cells. Taken together, our novel data on caffeine-inhibiting mechanism in relation to metastasis in lung cancer could provide insights into the impact of caffeine intake on human diseases and conditions.
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Affiliation(s)
- Pichitchai Meisaprow
- Graduate Student in Master of Science Program in Nutrition, Faculty of Medicine Ramathibodi Hospital and Institute of Nutrition, Mahidol University, Bangkok 10400, Thailand;
| | - Nithikoon Aksorn
- Department of Clinical Pathology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok 10300, Thailand;
| | - Chanida Vinayanuwattikun
- Division of Medical Oncology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Pithi Chanvorachote
- Cell-Based Drug and Health Product Development Research Unit, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Pharmacology and Physiology, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: (P.C.); (M.S.); Tel.: +66-22-188344 (P.C.); +66-28-002380 (ext. 328) (M.S.)
| | - Monruedee Sukprasansap
- Food Toxicology Unit, Institute of Nutrition, Mahidol University, Salaya Campus, Nakhon Pathom 73170, Thailand
- Correspondence: (P.C.); (M.S.); Tel.: +66-22-188344 (P.C.); +66-28-002380 (ext. 328) (M.S.)
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13
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Stanić D, Oved K, Israel-Elgali I, Jukić M, Batinić B, Puškaš N, Shomron N, Gurwitz D, Pešić V. Synergy of oxytocin and citalopram in modulating Itgb3/Chl1 interplay: Relevance to sensitivity to SSRI therapy. Psychoneuroendocrinology 2021; 129:105234. [PMID: 33930757 DOI: 10.1016/j.psyneuen.2021.105234] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 04/12/2021] [Accepted: 04/12/2021] [Indexed: 11/16/2022]
Abstract
Intranasal treatment with oxytocin showed beneficial effects in post-traumatic stress disorder and autism spectrum disorders; however, it was not investigated as much in depression. Keeping in mind the favorable effects of oxytocin on animal models of anxiety and depression, we postulated that synergy between prescribed first choice drugs, selective serotonin reuptake inhibitors (SSRIs) and oxytocin could improve the treatment outcome compared with SSRI monotherapy. Our previous in vitro genome-wide transcriptomic study on human lymphoblastoid cell lines exposed to paroxetine resulted in increase of integrin β3 (ITGB3) gene expression, and further, ITGB3/CHL1 expression ratio was hypothesized to influence the sensitivity to SSRIs. The aim of this report was to explore molecular mechanisms behind the antidepressant-like oxytocin effect, alone and in synergy with citalopram, on behavioral and molecular level in corticosterone treated rats, a paradigm used to model anxiety and depression in animals. Oxytocin treatment (1) ameliorated corticosterone-induced reduction of neurogenesis and number of parvalbumin-positive interneurons in the hippocampal CA1 region, (2) enhanced anxiolytic- and antidepressant-like effects of citalopram in the open field test, and (3) the SSRI/oxytocin synergy persisted in reversing the reduction of the Itgb3 gene expression and increased Itgb3/Chl1 ratio in the prefrontal cortices. These results support the existence of synergy between citalopram and oxytocin in reversing the molecular and behavioral changes induced by corticosterone treatment and point to possible molecular mechanisms behind antidepressant-like effect of oxytocin.
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Affiliation(s)
- Dušanka Stanić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11121 Belgrade, Serbia
| | - Keren Oved
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ifat Israel-Elgali
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - Marin Jukić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11121 Belgrade, Serbia; Section of Pharmacogenetics, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Bojan Batinić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11121 Belgrade, Serbia
| | - Nela Puškaš
- Department of Histology and Embryology, Faculty of Medicine, University of Belgrade, Serbia
| | - Noam Shomron
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - David Gurwitz
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - Vesna Pešić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11121 Belgrade, Serbia.
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14
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Zhao Y, Xu P, Guo L, Wang H, Min Y, Feng Q, Hou Y, Sun T, Li G, Ji X, Qiu J, Peng J, Liu X, Hou M. Tumor Necrosis Factor-α Blockade Corrects Monocyte/Macrophage Imbalance in Primary Immune Thrombocytopenia. Thromb Haemost 2021; 121:767-781. [PMID: 33469903 DOI: 10.1055/s-0040-1722186] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Primary immune thrombocytopenia (ITP) is an acquired autoimmune bleeding disorder. Monocytes and macrophages are the major cells involved in autoantibody-mediated platelet clearance in ITP. In the present study, we found increased percentages of peripheral blood proinflammatory CD16+ monocytes and elevated frequencies of splenic tumor necrosis factor-α (TNF-α)-expressing macrophages in ITP patients compared with healthy controls. Concurrently, we observed elevated TNF-α secretion in plasma as well as higher TNF-α mRNA expression in total peripheral blood mononuclear cells and CD14+ monocytes of ITP patients. Of note, in vitro TNF-α blockade with neutralizing antibody remarkably reduced polarization to M1 macrophages by inhibiting the nuclear factor kappa B (NF-κB) signaling pathway. Moreover, TNF-α blockade dampened macrophage phagocytosis and T cell stimulatory capacity. Finally, in passive and active murine models of ITP, anti-TNF-α therapy reduced the number of nonclassical monocytes and M1 macrophages, ameliorated the retention of platelets in spleen and liver, and increased the platelet count of ITP mice. Taken together, TNF-α blockade decreased the number and function of proinflammatory subsets of monocytes and macrophages by inhibiting the NF-κB signaling pathway, leading to remarkable attenuation of antibody-mediated platelet destruction. Thus, TNF-α blockade may be a promising therapeutic strategy for the management of ITP.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Animals
- Antibodies, Neutralizing/pharmacology
- Case-Control Studies
- Cells, Cultured
- Disease Models, Animal
- Female
- Humans
- Integrin beta3/genetics
- Integrin beta3/metabolism
- Lymphocyte Activation/drug effects
- Macrophages/drug effects
- Macrophages/immunology
- Macrophages/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, SCID
- Middle Aged
- Monocytes/drug effects
- Monocytes/immunology
- Monocytes/metabolism
- NF-kappa B/metabolism
- Phagocytosis/drug effects
- Purpura, Thrombocytopenic, Idiopathic/blood
- Purpura, Thrombocytopenic, Idiopathic/drug therapy
- Purpura, Thrombocytopenic, Idiopathic/genetics
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Signal Transduction
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Tumor Necrosis Factor Inhibitors/pharmacology
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Tumor Necrosis Factor-alpha/blood
- Tumor Necrosis Factor-alpha/genetics
- Young Adult
- Mice
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Affiliation(s)
- Yajing Zhao
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Pengcheng Xu
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li Guo
- Molecular Medicine Program, University of Utah, Salt Lake City, Utah, United States
| | - Haoyi Wang
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yanan Min
- Department of Haematology, Affiliated Hospital of Jining Medical University, Jining, China
| | - Qi Feng
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yu Hou
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tao Sun
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guosheng Li
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xuebin Ji
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jihua Qiu
- Department of Geriatric Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jun Peng
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Immunohaematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinguang Liu
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming Hou
- Department of Haematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Shandong Provincial Key Laboratory of Immunohaematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Key Laboratory of Cardiovascular Remodeling and Function Research, Chinese Ministry of Education and Chinese Ministry of Health, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Department of Science and Technology of Shandong Province, Leading Research Group of Scientific Innovation, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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15
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Yang EJ, Shim YJ, Kim HS, Lim YT, Im HJ, Koh KN, Kim H, Suh JK, Park ES, Lee NH, Choi YB, Hah JO, Lee JM, Han JW, Lee JH, Lee YH, Jung HL, Ha JS, Ki CS. Genetic Confirmation and Identification of Novel Variants for Glanzmann Thrombasthenia and Other Inherited Platelet Function Disorders: A Study by the Korean Pediatric Hematology Oncology Group (KPHOG). Genes (Basel) 2021; 12:genes12050693. [PMID: 34066320 PMCID: PMC8148153 DOI: 10.3390/genes12050693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/21/2021] [Accepted: 05/02/2021] [Indexed: 11/30/2022] Open
Abstract
The diagnosis of inherited platelet function disorders (IPFDs) is challenging owing to the unavailability of essential testing methods, including light transmission aggregometry and flow cytometry, in several medical centers in Korea. This study, conducted by the Korean Pediatric Hematology Oncology Group from March 2017 to December 2020, aimed to identify the causative genetic variants of IPFDs in Korean patients using next-generation sequencing (NGS). Targeted exome sequencing, followed by whole-genome sequencing, was performed for diagnosing IPFDs. Of the 11 unrelated patients with suspected IPFDs enrolled in this study, 10 patients and 2 of their family members were diagnosed with Glanzmann thrombasthenia (GT). The variant c.1913+5G>T of ITGB3 was the most common, followed by c.2333A>C (p.Gln778Pro) of ITGB2B. Known variants of GT, including c.917A>C (p.His306Pro) of ITGB3 and c.2975del (p.Glu992Glyfs*), c.257T>C (p.Leu86Pro), and c.1750C>T (p.Arg584*) of ITGA2B, were identified. Four novel variants of GT, c.1451G>T (p.Gly484Val) and c.1595G>T (p.Cys532Phe) of ITGB3 and c.1184G>T (p.Gly395Val) and c.2390del (p.Gly797Valfs*29) of ITGA2B, were revealed. The remaining patient was diagnosed with platelet type bleeding disorder 18 and harbored two novel RASGRP2 variants, c.1479dup (p.Arg494Alafs*54) and c.813+1G>A. We demonstrated the successful application of NGS for the accurate and differential diagnosis of heterogeneous IPFDs.
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Affiliation(s)
- Eu Jeen Yang
- Department of Pediatrics, Pusan National University School of Medicine, Pusan National University Children’s Hospital, Yangsan 50612, Korea; (E.J.Y.); (Y.T.L.)
| | - Ye Jee Shim
- Department of Pediatrics, Keimyung University School of Medicine, Keimyung University Dongsan Hospital, Daegu 42601, Korea
- Correspondence: ; Tel.: +82-53-258-7824
| | - Heung Sik Kim
- Department of Pediatrics, Keimyung University School of Medicine, Keimyung University Daegu Dongsan Hospital, Daegu 41931, Korea;
| | - Young Tak Lim
- Department of Pediatrics, Pusan National University School of Medicine, Pusan National University Children’s Hospital, Yangsan 50612, Korea; (E.J.Y.); (Y.T.L.)
| | - Ho Joon Im
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul 05505, Korea; (H.J.I.); (K.-N.K.); (H.K.)
| | - Kyung-Nam Koh
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul 05505, Korea; (H.J.I.); (K.-N.K.); (H.K.)
| | - Hyery Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul 05505, Korea; (H.J.I.); (K.-N.K.); (H.K.)
| | - Jin Kyung Suh
- Department of Pediatrics, Korea Cancer Center Hospital, Seoul 01812, Korea;
| | - Eun Sil Park
- Department of Pediatrics, Gyeongsang National University College of Medicine, Gyeongsang National University Hospital, Jinju 52727, Korea;
| | - Na Hee Lee
- Department of Pediatrics, Cha Bundang Medical Center, Cha University, Seongnam 13496, Korea;
| | - Young Bae Choi
- Department of Pediatrics, Ajou University School of Medicine, Ajou University Hospital, Suwon 16499, Korea;
| | - Jeong Ok Hah
- Department of Pediatrics, Daegu Fatima Hospital, Daegu 41199, Korea;
| | - Jae Min Lee
- Department of Pediatrics, Yeungnam University College of Medicine, Daegu 42415, Korea;
| | - Jung Woo Han
- Department of Pediatrics, Yonsei University College of Medicine, Yonsei University Health System, Seoul 03722, Korea;
| | - Jae Hee Lee
- Department of Pediatrics, Chungbuk National University School of Medicine, Chungbuk National University Hospital, Cheongju 28644, Korea;
| | - Young-Ho Lee
- Department of Pediatrics, Hanyang University Seoul Hospital, Seoul 04763, Korea;
| | - Hye Lim Jung
- Deparment of Pediatrics, Sungkyunkwan University School of Medicine, Kangbuk Samsung Hospital, Seoul 03181, Korea;
| | - Jung-Sook Ha
- Department of Laboratory Medicine, Keimyung University School of Medicine, Keimyung University Dongsan Hospital, Daegu 42601, Korea;
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16
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Xu Z, Liang Y, Delaney MK, Zhang Y, Kim K, Li J, Bai Y, Cho J, Ushio-Fukai M, Cheng N, Du X. Shear and Integrin Outside-In Signaling Activate NADPH-Oxidase 2 to Promote Platelet Activation. Arterioscler Thromb Vasc Biol 2021; 41:1638-1653. [PMID: 33691478 PMCID: PMC8057529 DOI: 10.1161/atvbaha.120.315773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 03/01/2021] [Indexed: 11/18/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Zheng Xu
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Ying Liang
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - M. Keegan Delaney
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
- Dupage Medical Technology, Inc (M.K.D.)
| | - Yaping Zhang
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Kyungho Kim
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
- Korean Medicine-Application Center, Korea Institute of Oriental Medicine, Daegu (K.K.)
| | - Jing Li
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Yanyan Bai
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Jaehyung Cho
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Masuko Ushio-Fukai
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
- Department of Medicine (Cardiology), Vascular Biology Center, Medical College of Georgia at Augusta University (M.U.-F.)
| | - Ni Cheng
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
| | - Xiaoping Du
- Department of Pharmacology, University of Illinois at Chicago (Z.X., Y.L., M.K.D., Y.Z., K.K., J.L., Y.B., J.C., M.U.-F., N.C., X.D.)
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Situ AJ, Kim J, An W, Kim C, Ulmer TS. Insight Into Pathological Integrin αIIbβ3 Activation From Safeguarding The Inactive State. J Mol Biol 2021; 433:166832. [PMID: 33539882 PMCID: PMC11025565 DOI: 10.1016/j.jmb.2021.166832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/01/2021] [Accepted: 01/12/2021] [Indexed: 11/20/2022]
Abstract
The inhibition of physiological activation pathways of the platelet adhesion receptor integrin αIIbβ3 may fail to prevent fatal thrombosis, suggesting that the receptor is at risk of activation by yet an unidentified pathway. Here, we report the discovery and characterization of a structural motif that safeguards the receptor by selectively destabilizing its inactive state. At the extracellular membrane border, an overpacked αIIb(W968)-β3(I693) contact prevents αIIb(Gly972) from optimally assembling the αIIbβ3 transmembrane complex, which maintains the inactive state. This destabilization of approximately 1.0 kcal/mol could be mitigated by hydrodynamic forces but not physiological agonists, thereby identifying hydrodynamic forces as pathological activation stimulus. As reproductive life spans are not generally limited by cardiovascular disease, it appears that the evolution of the safeguard was driven by fatal, hydrodynamic force-mediated integrin αIIbβ3 activation in the healthy cardiovascular system. The triggering of the safeguard solely by pathological stimuli achieves an effective increase of the free energy barrier between inactive and active receptor states without incurring an increased risk of bleeding. Thus, integrin αIIbβ3 has evolved an effective way to protect receptor functional states that indicates the availability of a mechanical activation pathway when hydrodynamic forces exceed physiological margins.
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Affiliation(s)
- Alan J Situ
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Jiyoon Kim
- Department of Life Sciences, Korea University, Seoul, Republic of Korea
| | - Woojin An
- Department of Biochemistry and Molecular Medicine, Norris Comprehensive Cancer Center, University of Southern California, Los Angeles, CA, USA
| | - Chungho Kim
- Department of Life Sciences, Korea University, Seoul, Republic of Korea.
| | - Tobias S Ulmer
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA.
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Wang Z, Kottawatta KSA, Kodithuwakku SP, Fernando TS, Lee YL, Ng EHY, Yeung WSB, Lee KF. The fungicide Mancozeb reduces spheroid attachment onto endometrial epithelial cells through downregulation of estrogen receptor β and integrin β3 in Ishikawa cells. Ecotoxicol Environ Saf 2021; 208:111606. [PMID: 33396126 DOI: 10.1016/j.ecoenv.2020.111606] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Mancozeb is a metal-containing ethylene bis-dithiocarbamate fungicide widely used in agriculture. Ethylene thiourea (ETU) is the primary metabolite of Mancozeb. Mancozeb has been associated with spontaneous abortions and abnormal menstruation in women. However, the effects of Mancozeb and ETU on embryo attachment remain unknown. The human blastocyst surrogate trophoblastic spheroids (JEG-3), endometrial epithelial surrogate adenocarcinoma cells (Ishikawa), or human primary endometrial epithelial cells (EECs) monolayer were used in the spheroid attachment models. Ishikawa and EECs were pretreated with different concentrations of Mancozeb or ETU for 48 h before the attachment assay. Gene expression profiles of Ishikawa cells were examined to understand how Mancozeb modulates endometrial receptivity with Microarray. The genes altered by Mancozeb were confirmed by qPCR and compared with the ETU treated groups. Mancozeb and ETU treatment inhibited cell viability at 10 μg/mL and 5000 µg/mL, respectively. At non-cytotoxic concentrations, Mancozeb at 3 μg/mL and ETU at 300 μg/mL reduced JEG-3 spheroid attachment onto Ishikawa cells. A similar result was observed with human primary endometrial epithelial cells. Mancozeb at 3 μg/mL modified the transcription of 158 genes by at least 1.5-fold in Microarray analysis. The expression of 10 differentially expressed genes were confirmed by qPCR. Furthermore, Mancozeb decreased spheroid attachment possibly through downregulating the expression of endometrial estrogen receptor β and integrin β3, but not mucin 1. These results were confirmed in both overexpression and knockdown experiments and co-culture assay. Mancozeb but not its metabolite ETU reduced spheroid attachment through modulating gene expression profile and decreasing estrogen receptor β and integrin β3 expression of endometrial epithelial cells.
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Affiliation(s)
- Ziyi Wang
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Obstetrics and Gynaecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kottawattage S A Kottawatta
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Veterinary Public Health and Pharmacology, Faculty of Veterinary Medicine and Animal Science, The University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Suranga P Kodithuwakku
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Department of Animal Science, Faculty of Agriculture, The University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Thevarathanthrige S Fernando
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Yin-Lau Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - Ernest H Y Ng
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - William S B Yeung
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China
| | - Kai-Fai Lee
- Department of Obstetrics and Gynaecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China; Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, China.
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Gu M, Sun J, Zhang S, Chen J, Wang G, Ju S, Wang X. A novel methylation signature predicts inferior outcome of patients with PDAC. Aging (Albany NY) 2021; 13:2851-2863. [PMID: 33550277 PMCID: PMC7880369 DOI: 10.18632/aging.202347] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 11/10/2020] [Indexed: 04/07/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) will become the second most common cause of death in North America and Europe over the next 10 years owing to the lack of early diagnosis, poor treatment, and poor prognosis. This study evaluated the methylation array data of 184 patients with PDAC in The Cancer Genome Atlas database to explore methylation biomarkers related to patient outcome. Using Univariable Cox regression analysis and Lasso regression analysis method in the training dataset, it was found that the four DNA methylation markers (CCNT1, ITGB3, SDS, and HMOX2) were significantly correlated with the overall survival of patients with PDAC. Kaplan-Meier analysis showed that these four DNA methylation markers could significantly distinguish high-risk and low-risk patients. Receiver operating characteristic analysis further confirmed that the four DNA methylation markers had high sensitivity and specificity, which could predict the prognosis of patients. Moreover, there was a difference in the genetic mutations between high-risk and low-risk patients distinguished by the four-DNA methylation model, which can provide information for clinical treatment. Finally, compared with known biomarkers, the model was more accurate in predicting the prognosis of PDAC. This four-DNA methylation model has potential as a new independent prognostic indicator, and could be used for the diagnosis, monitoring, and precision medicine of pancreatic cancer.
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Affiliation(s)
- Minqi Gu
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jing Sun
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Shunhao Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Jing Chen
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Guihua Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
- School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Shaoqing Ju
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
- School of Public Health, Nantong University, Nantong, Jiangsu, China
| | - Xudong Wang
- Department of Laboratory Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
- School of Public Health, Nantong University, Nantong, Jiangsu, China
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Dahiya N, Atreya C. MiRNA-103b Downregulates ITGB3 and Mediates Apoptosis in Ex Vivo Stored Human Platelets. Microrna 2021; 10:123-129. [PMID: 34086556 DOI: 10.2174/2211536610666210604121854] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/29/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Blood bank-stored human platelets are one of the life-saving transfusion products to prevent bleeding in multiple clinical settings. In ex vivo storage, platelets undergo apoptosis and it is highly desirable to prevent this process to preserve platelet quality. However, underlying mechanisms of apoptosis are not well understood in stored platelets. Integrin beta 3 (ITGB3) glycoprotein plays multiple roles in platelet physiological processes, and it was reported in other cell types that downregulation of ITGB3 induces apoptosis. Small noncoding regulatory RNAs known as microRNAs (miRNAs), some of which are abundant in platelets such as miR-103b that belong to miR-103 family of miRNAs, known to play key roles in platelet functions both in vivo and during storage; Cellular miR-103 downregulates certain genes in other cell types and promotes apoptosis. However, whether miR-103b can target and downregulate ITGB3 in stored platelets and such miRNA regulation promotes apoptosis is not known. Here, we tested this working hypothesis. OBJECTIVE Our objective of this study is to validate the abundance of miR-103b in stored platelets and identify whether ITGB3 is a target of miR-103b for the downregulation and this interaction promotes apoptosis. METHODS RT-qPCR validation of miR-103b was performed in 11 donor samples at 3 different storage time points. In-silico analysis was performed to identify predicted targets of the miR-103b. The miRNA and messenger RNA interactions were confirmed using different biochemical approaches such as qRT-PCR, western blotting and, suppression of luciferase reporter gene expression by ectopic expression of miR-103b in HeLa cells. Final validation of the functional role of miR-103b in ITGB3 downregulation and resulting induction of apoptosis was assessed in stored platelets by FACS analysis following ectopic expression of miR-103b. RESULTS Using the Target Scan Vert algorithm, we identified several integrin subunit-encoding mRNAs as potential targets of miR-103b. While ITGB3 and ITGB6 were found to have two targeting sites for miR-103b, since ITGB3 is known to play a role in apoptosis, we chose this for further validation in this study. Ectopic expression of miR-103b decreased the luciferase reporter activity in HeLa cells and decreased ITGB3 mRNA and protein levels in platelets, concomitant with an increase in apoptosis. CONCLUSION The results demonstrate that in stored platelets, miR-103b is highly expressed and can interact with and downregulate ITGB3 and promote apoptosis in stored platelets.
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Affiliation(s)
- Neetu Dahiya
- Department of Laboratory of Cellular Hematology, Division of Blood Components and Devices, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, United States
| | - Chintamani Atreya
- Department of Laboratory of Cellular Hematology, Division of Blood Components and Devices, Center for Biologics Evaluation and Research, US Food and Drug Administration, 10903 New Hampshire Avenue, United States
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21
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Fiore M, Bayat B, Phuangtham R, Blouin L, Huguenin Y, Bein G, Santoso S. Immunization against α IIb β 3 and α v β 3 in Glanzmann thrombasthenia patients carrying the French Gypsy mutation. J Thromb Haemost 2021; 19:255-261. [PMID: 33090654 DOI: 10.1111/jth.15117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 01/22/2023]
Abstract
Essentials The c.1544+1G>A mutation was identified in Gypsy Glanzmann thrombasthenia (GT) patients. Gypsy GT patients express normal αv β3 carrying HPA-1b epitopes. To demonstrate HPA-1a alloimmunization by modified antigen capture assays. Gypsy GT patients could develop anti-HPA-1a alloantibodies against β3 and αv β3 . ABSTRACT: Background Glanzmann thrombasthenia (GT) is a rare bleeding disorder caused by the absence or the dysfunction of the platelet αIIb β3 integrin. A founder mutation in the ITGA2B gene was previously identified in French Gypsy patients. Interestingly, this mutation was strongly linked to the human platelet antigen-1b (HPA-1b). The HPA-1bb Gypsy patients are at risk of isoimmunization against αIIb β3 , as this complex is not expressed at their platelet surface. Tentatively, they would, however, not have an increased risk of developing anti-HPA-1a alloantibodies by exposure of αIIb β3 on platelets from random platelet transfusions. However, the β3 chain can also associate with the αv subunit expressed at the platelet surface. Because Gypsy GT patients express normal αv β3 carrying HPA-1b epitopes, these patients might develop anti-HPA-1a alloantibodies reacting with αv β3 and/or β3 . Objectives/Patients/Methods To demonstrate this hypothesis, sera from HPA-1bb (n = 5) and HPA-1ab (n = 1) Gypsy GT patients were investigated by modified antigen capture assay using platelets or stable transfected cells. Furthermore, stable transfected cells expressing either αIIb β3 or αv β3 together with soluble monomeric chimeric β3 (as absorbent) were used to differentiate anti-β3 and anti-αv β3 reactivity. Results Only HPA-1bb patients developed alloantibodies reacting with HPA-1a cells. Further analysis showed that HPA-1bb patients developed anti-HPA-1a alloantibodies reacting with β3 and/or αv β3 . Conclusion In this study, we found that HPA-1bb patients who failed to express αIIb β3 on the platelet surface can develop alloantibodies against HPA-1a reacting with β3 as well as αv β3 . This is of particular importance as anti-HPA-1a alloantibodies might cause fetal neonatal alloimmune thrombocytopenia and/or platelet transfusion refractoriness.
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Affiliation(s)
- Mathieu Fiore
- Laboratoire d'hématologie, Centre de Référence des Pathologies Plaquettaires Constitutionnelles, CHU de Bordeaux, Inserm U1034 - Biology of Cardiovascular Diseases, Pessac, France
| | - Behnaz Bayat
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Roongaroon Phuangtham
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
- Biomedical Sciences Program, Graduate School, Khon Kaen University, Khon Kaen, Thailand
| | - Laura Blouin
- Service d'Immunologie et Immunogénétique, Centre Hospitalier Universitaire de Bordeaux, Hôpital Pellegrin, Établissement Français du Sang, Bordeaux, France
| | - Yoann Huguenin
- Centre de Ressources et de Compétence des Maladies Hémorragiques Constitutionnelles, Hôpital Pellegrin, CHU de Bordeaux, Bordeaux, France
| | - Gregor Bein
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
| | - Sentot Santoso
- Institute for Clinical Immunology and Transfusion Medicine, Justus-Liebig University, Giessen, Germany
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Feng W, Huang W, Chen J, Qiao C, Liu D, Ji X, Xie M, Zhang T, Wang Y, Sun M, Tian D, Fan D, Nie Y, Wu K, Xia L. CXCL12-mediated HOXB5 overexpression facilitates Colorectal Cancer metastasis through transactivating CXCR4 and ITGB3. Theranostics 2021; 11:2612-2633. [PMID: 33456563 PMCID: PMC7806482 DOI: 10.7150/thno.52199] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 12/05/2020] [Indexed: 12/24/2022] Open
Abstract
Background: Metastasis is the major reason for the high mortality of colorectal cancer (CRC). However, the molecular mechanism underlying CRC metastasis remains unclear. Here, we report a novel role of homeobox B5 (HOXB5), a member of the HOX family, in promoting CRC metastasis. Method: The expression of HOXB5 and its target genes were examined by immunohistochemistry in human CRC. Chromatin immunoprecipitation and luciferase reporter assays were performed to measure the transcriptional regulation of target genes by HOXB5. The metastatic capacities of CRC cells were evaluated by in vivo lung and liver metastatic models. Results: The elevated expression of HOXB5 was positively correlated with distant metastasis, higher AJCC stage, and poor prognosis in CRC patients. HOXB5 expression was an independent and significant risk factor for the recurrence and survival in CRC patients. Overexpression of HOXB5 promoted CRC metastasis by transactivating metastatic related genes, C-X-C motif chemokine receptor 4 (CXCR4) and integrin subunit beta 3 (ITGB3). C-X-C motif chemokine ligand 12 (CXCL12), which is the ligand of CXCR4, upregulated HOXB5 expression through the extracellular regulated protein kinase (ERK)/ETS proto-oncogene 1, transcription factor (ETS1) pathway. The knockdown of HOXB5 decreased CXCL12-enhanced CRC metastasis. Furthermore, AMD3100, a specific CXCR4 inhibitor, significantly suppressed HOXB5-mediated CRC metastasis. HOXB5 expression was positively correlated with CXCR4 and ITGB3 expression in human CRC tissues, and patients with positive co-expression of HOXB5/CXCR4, or HOXB5/ITGB3 exhibited the worst prognosis. Conclusion: Our study implicates HOXB5 as a prognostic biomarker in CRC, and defines a CXCL12-HOXB5-CXCR4 positive feedback loop that plays an important role in promoting CRC metastasis.
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Affiliation(s)
- Weibo Feng
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Wenjie Huang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Clinical Medicine Research Center for Hepatic Surgery of Hubei Province; Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei, 430030, China
| | - Jie Chen
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Chenyang Qiao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Danfei Liu
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Xiaoyu Ji
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Meng Xie
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Tongyue Zhang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yijun Wang
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Mengyu Sun
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Dean Tian
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Daiming Fan
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Yongzhan Nie
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Kaichun Wu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
| | - Limin Xia
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an 710032, Shaanxi Province, China
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Morais S, Oliveira J, Lau C, Pereira M, Gonçalves M, Monteiro C, Gonçalves AR, Matos R, Sampaio M, Cruz E, Freitas I, Santos R, Lima M. αIIbβ3 variants in ten families with autosomal dominant macrothrombocytopenia: Expanding the mutational and clinical spectrum. PLoS One 2020; 15:e0235136. [PMID: 33276370 PMCID: PMC7717987 DOI: 10.1371/journal.pone.0235136] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/09/2020] [Indexed: 12/31/2022] Open
Abstract
Background Rare pathogenic variants in either the ITGA2B or ITGB3 genes have been linked to autosomal dominant macrothrombocytopenia associated with abnormal platelet production and function, deserving the designation of Glanzmann Thrombasthenia-Like Syndrome (GTLS) or ITGA2B/ITGB3-related thrombocytopenia. Objectives To describe a series of patients with familial macrothrombocytopenia and decreased expression of αIIbβ3 integrin due to defects in the ITGA2B or ITGB3 genes. Methods We reviewed the clinical and laboratory records of 10 Portuguese families with GTLS (33 patients and 11 unaffected relatives), including the functional and genetic defects. Results Patients had absent to moderate bleeding, macrothrombocytopenia, low αIIbβ3 expression, impaired platelet aggregation/ATP release to physiological agonists and low expression of activation-induced binding sites on αIIbβ3 (PAC-1) and receptor-induced binding sites on its ligand (bound fibrinogen), upon stimulation with TRAP-6 and ADP. Evidence for constitutive αIIbβ3 activation, occurred in 2 out of 9 patients from 8 families studied, but also in 2 out of 12 healthy controls. We identified 7 missense variants: 3 in ITGA2B (5 families), and 4 in ITGB3 (5 families). Three variants (αIIb: p.Arg1026Trp and p.Arg1026Gln and β3: p.Asp749His) were previously reported. The remaining (αIIb: p.Gly1007Val and β3: p.Thr746Pro, p.His748Pro and p.Arg760Cys) are new, expanding the αIIbβ3 defects associated with GTLS. The integration of the clinical and laboratory data allowed the identification of two GTLS subgroups, with distinct disease severity. Conclusions Previously reported ITGA2B and ITGB3 variants related to thrombocytopenia were clustered in a confined region of the membrane-proximal cytoplasmic domains, the inner membrane clasp. For the first time, variants are reported at the outer membrane clasp, at the transmembrane domain of αIIb, and at the membrane distal cytoplasmic domains of β3. This is the largest single-center series of inherited macrothrombocytopenia associated with αIIbβ3 variants published to date.
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Affiliation(s)
- Sara Morais
- Setor de Trombose e Hemostase, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- * E-mail:
| | - Jorge Oliveira
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Unidade de Genética Molecular, Centro de Genética Médica Doutor Jacinto Magalhães (CGMJM), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Catarina Lau
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Laboratório de Citometria, Unidade de Diagnóstico Hematológico, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Mónica Pereira
- Setor de Trombose e Hemostase, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
| | - Marta Gonçalves
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Laboratório de Citometria, Unidade de Diagnóstico Hematológico, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Catarina Monteiro
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Unidade de Genética Molecular, Centro de Genética Médica Doutor Jacinto Magalhães (CGMJM), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Ana Rita Gonçalves
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Unidade de Genética Molecular, Centro de Genética Médica Doutor Jacinto Magalhães (CGMJM), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Rui Matos
- Setor de Trombose e Hemostase, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Marco Sampaio
- Setor de Trombose e Hemostase, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
| | - Eugénia Cruz
- Setor de Trombose e Hemostase, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Inês Freitas
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Serviço de Hematologia Laboratorial, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Rosário Santos
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Unidade de Genética Molecular, Centro de Genética Médica Doutor Jacinto Magalhães (CGMJM), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
| | - Margarida Lima
- Unidade Multidisciplinar de Investigação Biomédica, Instituto de Ciências Biomédicas, Universidade do Porto (UMIB/ICBAS/UP), Porto, Portugal
- Laboratório de Citometria, Unidade de Diagnóstico Hematológico, Serviço de Hematologia Clínica, Hospital de Santo António (HSA), Centro Hospitalar Universitário do Porto (CHUP), Porto, Portugal
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Yuan Y, Liu Q, Wu Z, Luo W. Mechanistic Insight on the Interaction between OPN and Integrin ανβ3 in Osteoarthritis. Biomed Res Int 2020; 2020:2905634. [PMID: 33134374 PMCID: PMC7593734 DOI: 10.1155/2020/2905634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/22/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
Osteoarthritis (OA) is a joint disease characterized by cartilage degeneration. Osteopontin (OPN) is involved in the initiation, repair, and maintenance of metabolic homeostasis in normal articular cartilage. This study investigated the role of OPN and its interaction with the integrin ανβ3 receptor in the expression of hyaluronic acid (HA) in OA chondrocytes. Overexpression of OPN significantly increased the expression of integrin ανβ3 and hyaluronic acid synthases (HAS) and synthesis of HA. Depleting OPN in OA chondrocytes showed the opposite trend for integrin alpha;νβ3, HAS, and HA. Nonspecifically and specifically blocking integrin receptor using GRGDSP and integrin ανβ3 antibody downregulated HAS and HA; both were inhibited to similar extents. The expression of HAS and HA was predominantly regulated by the interaction between OPN and integrin ανβ3. Taken together, we have delineated the importance of the OPN/integrin ανβ3/HAS/HA axis in OA and identified OPN as a promising candidate for molecular therapy for use in patients with OA.
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MESH Headings
- Antibodies, Neutralizing/pharmacology
- Arthroplasty, Replacement, Knee/methods
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cartilage, Articular/surgery
- Cell Proliferation/drug effects
- Chondrocytes/drug effects
- Chondrocytes/metabolism
- Chondrocytes/pathology
- Gene Expression Regulation
- Humans
- Hyaluronan Synthases/genetics
- Hyaluronan Synthases/metabolism
- Hyaluronic Acid/metabolism
- Integrin beta3/genetics
- Integrin beta3/metabolism
- Integrins/antagonists & inhibitors
- Integrins/genetics
- Integrins/metabolism
- Isoenzymes/genetics
- Isoenzymes/metabolism
- Oligopeptides/pharmacology
- Osteoarthritis, Knee/genetics
- Osteoarthritis, Knee/metabolism
- Osteoarthritis, Knee/pathology
- Osteoarthritis, Knee/surgery
- Osteopontin/genetics
- Osteopontin/metabolism
- Primary Cell Culture
- Protein Binding
- Signal Transduction
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Affiliation(s)
- Yuhao Yuan
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Qing Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- Department of Spine Surgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Ziyi Wu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Wei Luo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
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25
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Lagarrigue F, Paul DS, Gingras AR, Valadez AJ, Sun H, Lin J, Cuevas MN, Ablack JN, Lopez-Ramirez MA, Bergmeier W, Ginsberg MH. Talin-1 is the principal platelet Rap1 effector of integrin activation. Blood 2020; 136:1180-1190. [PMID: 32518959 PMCID: PMC7472713 DOI: 10.1182/blood.2020005348] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/29/2020] [Indexed: 12/14/2022] Open
Abstract
Ras-related protein 1 (Rap1) is a major convergence point of the platelet-signaling pathways that result in talin-1 binding to the integrin β cytoplasmic domain and consequent integrin activation, platelet aggregation, and effective hemostasis. The nature of the connection between Rap1 and talin-1 in integrin activation is an important remaining gap in our understanding of this process. Previous work identified a low-affinity Rap1-binding site in the talin-1 F0 domain that makes a small contribution to integrin activation in platelets. We recently identified an additional Rap1-binding site in the talin-1 F1 domain that makes a greater contribution than F0 in model systems. Here we generated mice bearing point mutations, which block Rap1 binding without affecting talin-1 expression, in either the talin-1 F1 domain (R118E) alone, which were viable, or in both the F0 and F1 domains (R35E,R118E), which were embryonic lethal. Loss of the Rap1-talin-1 F1 interaction in platelets markedly decreases talin-1-mediated activation of platelet β1- and β3-integrins. Integrin activation and platelet aggregation in mice whose platelets express only talin-1(R35E, R118E) are even more impaired, resembling the defect seen in platelets lacking both Rap1a and Rap1b. Although Rap1 is important in thrombopoiesis, platelet secretion, and surface exposure of phosphatidylserine, loss of the Rap1-talin-1 interaction in talin-1(R35E, R118E) platelets had little effect on these processes. These findings show that talin-1 is the principal direct effector of Rap1 GTPases that regulates platelet integrin activation in hemostasis.
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Affiliation(s)
- Frederic Lagarrigue
- Department of Medicine, University of California, San Diego, La Jolla, CA
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS), Université de Toulouse, Toulouse, France
| | - David S Paul
- UNC Blood Research Center and
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC; and
| | | | - Andrew J Valadez
- Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Hao Sun
- Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Jenny Lin
- Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Monica N Cuevas
- Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Jailal N Ablack
- Department of Medicine, University of California, San Diego, La Jolla, CA
| | - Miguel Alejandro Lopez-Ramirez
- Department of Medicine, University of California, San Diego, La Jolla, CA
- Department of Pharmacology, University of California, San Diego, La Jolla, CA
| | - Wolfgang Bergmeier
- UNC Blood Research Center and
- Department of Biochemistry and Biophysics, University of North Carolina at Chapel Hill, Chapel Hill, NC; and
| | - Mark H Ginsberg
- Department of Medicine, University of California, San Diego, La Jolla, CA
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26
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Yuh DY, Maekawa T, Li X, Kajikawa T, Bdeir K, Chavakis T, Hajishengallis G. The secreted protein DEL-1 activates a β3 integrin-FAK-ERK1/2-RUNX2 pathway and promotes osteogenic differentiation and bone regeneration. J Biol Chem 2020; 295:7261-7273. [PMID: 32280065 PMCID: PMC7247308 DOI: 10.1074/jbc.ra120.013024] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/08/2020] [Indexed: 12/25/2022] Open
Abstract
The integrin-binding secreted protein developmental endothelial locus-1 (DEL-1) is involved in the regulation of both the initiation and resolution of inflammation in different diseases, including periodontitis, an oral disorder characterized by inflammatory bone loss. Here, using a mouse model of bone regeneration and in vitro cell-based mechanistic studies, we investigated whether and how DEL-1 can promote alveolar bone regeneration during resolution of experimental periodontitis. Compared with WT mice, mice lacking DEL-1 or expressing a DEL-1 variant with an Asp-to-Glu substitution in the RGD motif ("RGE point mutant"), which does not interact with RGD-dependent integrins, exhibited defective bone regeneration. Local administration of DEL-1 or of its N-terminal segment containing the integrin-binding RGD motif, but not of the RGE point mutant, reversed the defective bone regeneration in the DEL-1-deficient mice. Moreover, DEL-1 (but not the RGE point mutant) promoted osteogenic differentiation of MC3T3-E1 osteoprogenitor cells or of primary calvarial osteoblastic cells in a β3 integrin-dependent manner. The ability of DEL-1 to promote in vitro osteogenesis, indicated by induction of osteogenic genes such as the master transcription factor Runt-related transcription factor-2 (Runx2) and by mineralized nodule formation, depended on its capacity to induce the phosphorylation of focal adhesion kinase (FAK) and of extracellular signal-regulated kinase 1/2 (ERK1/2). We conclude that DEL-1 can activate a β3 integrin-FAK-ERK1/2-RUNX2 pathway in osteoprogenitors and promote new bone formation in mice. These findings suggest that DEL-1 may be therapeutically exploited to restore bone lost due to periodontitis and perhaps other osteolytic conditions.
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Affiliation(s)
- Da-Yo Yuh
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tomoki Maekawa
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104; Research Center for Advanced Oral Science, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8514, Japan
| | - Xiaofei Li
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Tetsuhiro Kajikawa
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Khalil Bdeir
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine, Technische Universität Dresden, 001069 Dresden, Germany
| | - George Hajishengallis
- Department of Basic and Translational Sciences, Penn Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104.
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27
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Yi X, Zhou Q, Zhang Y, Zhou J, Lin J. Variants in clopidogrel-relevant genes and early neurological deterioration in ischemic stroke patients receiving clopidogrel. BMC Neurol 2020; 20:159. [PMID: 32345264 PMCID: PMC7187527 DOI: 10.1186/s12883-020-01703-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 03/27/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Early neurological deterioration (END) is common in acute ischemic stroke (IS). However, the underlying mechanisms for END are unclear. The aim of this study was to evaluate the associations of 16 variants in clopidogrel-relevant genes and interactions among these variants with END in acute IS patients receiving clopidogrel treatment. METHODS We consecutively enrolled 375 acute IS patients between June 2014 and January 2015. Platelet aggregation was measured on admission and after the 7-10 days of clopidogrel treatment. The 16 variants in clopidogrel-relevant genes were examined using mass spectrometry. The primary outcome was END within the 10 days of admission. Gene-gene interactions were analyzed by generalized multifactor dimensionality reduction (GMDR) methods. RESULTS Among the 375 patients, 95 (25.3%) patients developed END within the first 10 days of admission. Among the 16 variants, only CYP2C19*2 (rs4244285) AA/AG was associated with END using single-locus analytical approach. GMDR analysis revealed that there was a synergistic effect of gene-gene interactions among CYP2C19*2 rs4244285, P2Y12 rs16863323, and GPIIIa rs2317676 on the risk for END. The high-risk interactions among the three variants were associated with the higher platelet aggregation and independent predictor for END after adjusting for the covariates (hazard ratio: 2.82; 95% confidence interval: 1.36-7.76; P = 0.003). CONCLUSIONS END is very common in patients with acute IS. The mechanisms leading to END are most likely multifactorial. Interactions among CYP2C19*2 rs4244285, P2Y12 rs16863323, and GPIIIa rs2317676 may confer a higher risk for END. It was very important to modify clopidogrel therapy for the patients carrying the high-risk interactive genotypes. CLINICAL TRIAL REGISTRATION INFORMATION The study described here is registered at http://www.chictr.org/ (unique Identifier: ChiCTR-OCH-14004724). The date of trial registration was May 30, 2014.
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Affiliation(s)
- Xingyang Yi
- Department of Neurology, the People’s Hospital of Deyang City, Deyang, 618000 Sichuan China
| | - Qiang Zhou
- Department of Neurology, the Third Affiliated Hospital of Wenzhou Medical University, 108 Wanson Road, Ruian City, Wenzhou, 325200 Zhejiang China
| | - Yongyin Zhang
- Department of Neurology, the Third Affiliated Hospital of Wenzhou Medical University, 108 Wanson Road, Ruian City, Wenzhou, 325200 Zhejiang China
| | - Ju Zhou
- Department of Neurology, the People’s Hospital of Deyang City, Deyang, 618000 Sichuan China
| | - Jing Lin
- Department of Neurology, the Third Affiliated Hospital of Wenzhou Medical University, 108 Wanson Road, Ruian City, Wenzhou, 325200 Zhejiang China
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28
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Salama Y, Heida AH, Yokoyama K, Takahashi S, Hattori K, Heissig B. The EGFL7-ITGB3-KLF2 axis enhances survival of multiple myeloma in preclinical models. Blood Adv 2020; 4:1021-1037. [PMID: 32191808 PMCID: PMC7094020 DOI: 10.1182/bloodadvances.2019001002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/17/2020] [Indexed: 12/18/2022] Open
Abstract
Angiogenic factors play a key role in multiple myeloma (MM) growth, relapse, and drug resistance. Here we show that malignant plasma cells (cell lines and patient-derived MM cells) express angiocrine factor EGF like-7 (EGFL7) mRNA and protein. MM cells both produced EGFL7 and expressed the functional EGFL7 receptor integrin β 3 (ITGB3), resulting in ITGB3 phosphorylation and focal adhesion kinase activation. Overexpression of ITGB3 or EGFL7 enhanced MM cell adhesion and proliferation. Intriguingly, ITGB3 overexpression upregulated the transcription factor Krüppel-like factor 2 (KLF2), which further enhanced EGFL7 transcription in MM cells, thereby establishing an EGFL7-ITGB3-KLF2-EGFL7 amplification loop that supports MM cell survival and proliferation. EGFL7 expression was found in certain plasma cells of patients with refractory MM and of patients at primary diagnosis. NOD.CB17-Prkdc/J mice transplanted with MM cells showed elevated human plasma EGFL7 levels. EGFL7 knockdown in patient-derived MM cells and treatment with neutralizing antibodies against EGFL7 inhibited MM cell growth in vitro and in vivo. We demonstrate that the standard-of-care MM drug bortezomib upregulates EGFL7, ITGB3, and KLF2 expression in MM cells. Inhibition of EGFL7 signaling in synergy with BTZ may provide a novel strategy for inhibiting MM cell proliferation.
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Affiliation(s)
- Yousef Salama
- Division of Stem Cell Dynamics, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- An-Najah Center for Cancer and Stem Cell Research, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Andries Hendrik Heida
- Division of Stem Cell Dynamics, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | | | - Satoshi Takahashi
- Department of Hematology and Oncology, Center for Stem Cell Biology and Regenerative Medicine, Institute of Medical Science, The University of Tokyo, Tokyo, Japan; and
| | | | - Beate Heissig
- Division of Stem Cell Dynamics, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- Department of Immunological Diagnosis, Juntendo University School of Medicine, Tokyo, Japan
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29
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Nešić D, Zhang Y, Spasic A, Li J, Provasi D, Filizola M, Walz T, Coller BS. Cryo-Electron Microscopy Structure of the αIIbβ3-Abciximab Complex. Arterioscler Thromb Vasc Biol 2020; 40:624-637. [PMID: 31969014 PMCID: PMC7047619 DOI: 10.1161/atvbaha.119.313671] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The αIIbβ3 antagonist antiplatelet drug abciximab is the chimeric antigen-binding fragment comprising the variable regions of murine monoclonal antibody 7E3 and the constant domains of human IgG1 and light chain κ. Previous mutagenesis studies suggested that abciximab binds to the β3 C177-C184 specificity-determining loop (SDL) and Trp129 on the adjacent β1-α1 helix. These studies could not, however, assess whether 7E3 or abciximab prevents fibrinogen binding by steric interference, disruption of either the αIIbβ3-binding pocket for fibrinogen or the β3 SDL (which is not part of the binding pocket but affects fibrinogen binding), or some combination of these effects. To address this gap, we used cryo-electron microscopy to determine the structure of the αIIbβ3-abciximab complex at 2.8 Å resolution. Approach and Results: The interacting surface of abciximab is comprised of residues from all 3 complementarity-determining regions of both the light and heavy chains, with high representation of aromatic residues. Binding is primarily to the β3 SDL and neighboring residues, the β1-α1 helix, and β3 residues Ser211, Val212 and Met335. Unexpectedly, the structure also indicated several interactions with αIIb. As judged by the cryo-electron microscopy model, molecular-dynamics simulations, and mutagenesis, the binding of abciximab does not appear to rely on the interaction with the αIIb residues and does not result in disruption of the fibrinogen-binding pocket; it does, however, compress and reduce the flexibility of the SDL. CONCLUSIONS We deduce that abciximab prevents ligand binding by steric interference, with a potential contribution via displacement of the SDL and limitation of the flexibility of the SDL residues.
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Affiliation(s)
- Dragana Nešić
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, NY
| | - Yixiao Zhang
- Laboratory of Molecular Electron Microscopy, Rockefeller University, New York, NY
| | - Aleksandar Spasic
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jihong Li
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, NY
| | - Davide Provasi
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Marta Filizola
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Thomas Walz
- Laboratory of Molecular Electron Microscopy, Rockefeller University, New York, NY
| | - Barry S. Coller
- Allen and Frances Adler Laboratory of Blood and Vascular Biology, Rockefeller University, New York, NY
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30
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Elsidege Ali LA, Mahdi Hassan F. Association of Platelet Integrin α<sub>IIb</sub>β<sub>3</sub> Polymorphisms with Atherosclerotic Coronary Heart Disease in Sudanese Patients. Pak J Biol Sci 2020; 22:335-341. [PMID: 31930844 DOI: 10.3923/pjbs.2019.335.341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Glycoprotein IIIa and GPIIb constitutes are the fibrinogen receptor (integrin αIIbβ3). This glycoprotein has a fundamental role in atherothrombosis. This study aimed to detect the association of αIIbβ3 polymorphisms with atherosclerotic coronary heart disease in Sudanese patients and the association between the risk factors and platelet integrin αIIbβ3 polymorphisms. MATERIALS AND METHODS This is a case-control hospital-based study contain 50 atherosclerotic patients (>18 years) with coronary heart disease that admitted to Khartoum hospital and were compared to apparently 50 healthy Sudanese subjects at the same ages. About 5 mL of venous blood sample was collected from each patient and control. The laboratory analyses were done for HbA1c, lipid profile and for DNA genotyping. RESULTS LDL, HDL, HbA1c and body mass index have shown highly significant influence on patients. No significant differences were observed for triglycerides and total cholesterol levels. The risks of coronary heart disease were higher with A/B genotype in HPA3, but no association detected with coronary heart disease patients in HPA1 polymorphism. CONCLUSION In conclusion, HPA3 polymorphism was associated with atherosclerotic in Sudanese patients, while HPA1 polymorphism has not.
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Jin H, Wang Q, Chen K, Xu K, Pan H, Chu F, Ye Z, Wang Z, Tickner J, Qiu H, Wang C, Kenny J, Xu H, Wang T, Xu J. Astilbin prevents bone loss in ovariectomized mice through the inhibition of RANKL-induced osteoclastogenesis. J Cell Mol Med 2019; 23:8355-8368. [PMID: 31603626 PMCID: PMC6850941 DOI: 10.1111/jcmm.14713] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 07/27/2019] [Accepted: 08/07/2019] [Indexed: 01/01/2023] Open
Abstract
Osteoporosis is the most common osteolytic disease characterized by excessive osteoclast formation and resultant bone loss, which afflicts millions of patients around the world. Astilbin, a traditional herb, is known to have anti-inflammatory, antioxidant and antihepatic properties, but its role in osteoporosis treatment has not yet been confirmed. In our study, astilbin was found to have an inhibitory effect on the RANKL-induced formation and function of OCs in a dose-dependent manner without cytotoxicity. These effects were attributed to its ability to suppress the activity of two transcription factors (NFATc1 and c-Fos) indispensable for osteoclast formation, followed by inhibition of the expression of bone resorption-related genes and proteins (Acp5/TRAcP, CTSK, V-ATPase-d2 and integrin β3). Furthermore, we examined the underlying mechanisms and found that astilbin repressed osteoclastogenesis by blocking Ca2+ oscillations and the NF-κB and MAPK pathways. In addition, the therapeutic effect of MA on preventing bone loss in vivo was further confirmed in an ovariectomized mouse model. Therefore, considering its ability to inhibit RANKL-mediated osteoclastogenesis and the underlying mechanisms, astilbin might be a potential candidate for treating osteolytic bone diseases.
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Affiliation(s)
- Haiming Jin
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Qingqing Wang
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Kai Chen
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Ke Xu
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Hao Pan
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Feifan Chu
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Zhen Ye
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Ziyi Wang
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Jennifer Tickner
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Heng Qiu
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Chao Wang
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Jacob Kenny
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
| | - Huazi Xu
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Te Wang
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
| | - Jiake Xu
- Key Laboratory of Orthopaedics of Zhejiang ProvinceThe Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina
- School of Biomedical SciencesThe University of Western AustraliaPerthWAAustralia
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Guillet B, Bayart S, Pillois X, Nurden P, Caen JP, Nurden AT. A Glanzmann thrombasthenia family associated with a TUBB1-related macrothrombocytopenia. J Thromb Haemost 2019; 17:2211-2215. [PMID: 31565851 DOI: 10.1111/jth.14622] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/19/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Macrothrombocytopenia (MTP) is a rare but enigmatic complication of Glanzmann thrombasthenia (GT), an inherited bleeding disorder caused by the absence of platelet aggregation due to deficiencies of the αIIbβ3 integrin. OBJECTIVES We report a family with type I GT and a prolonged bleeding time but unusually associated with congenital mild thrombocytopenia and platelet size heterogeneity with giant forms. METHODS AND RESULTS Sanger sequencing of DNA from the propositus identified 2 heterozygous ITGB3 gene mutations: p.P189S and p.C210S both of which prevent αIIbβ3 expression and are causative of GT but without explaining the presence of enlarged platelets. High-throughput screening led to the detection of a predicted disease-causing heterozygous mutation in the TUBB1 gene: p.G146R, encoding β1-tubulin, a component of the platelet cytoskeleton and a gene where mutations are a known cause of MTP. CONCLUSIONS Family screening confirmed that this rare phenotype results from oligogenic inheritance while suggesting that the GT phenotype dominates clinically.
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Affiliation(s)
- Benoit Guillet
- Centre de Traitement des Maladies Hémorragiques, CHU de Rennes, Rennes, France
- EHESP, INSERM, Institut de Recherche en Santé, Environnement et Travail-Unité Mixte de Recherche 1085 S, Univ Rennes, CHU de Rennes, Rennes, France
| | - Sophie Bayart
- Centre de Traitement des Maladies Hémorragiques, CHU de Rennes, Rennes, France
| | - Xavier Pillois
- INSERM U1034, Pessac, France
- Institut de Rhythmologie et de Modélisation Cardiaque, Hôpital Xavier Arnozan, Pessac, France
| | - Paquita Nurden
- Institut de Rhythmologie et de Modélisation Cardiaque, Hôpital Xavier Arnozan, Pessac, France
| | | | - Alan T Nurden
- Institut de Rhythmologie et de Modélisation Cardiaque, Hôpital Xavier Arnozan, Pessac, France
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Wu Z, Cai Y, Xia Q, Liu T, Yang H, Wang F, Wang N, Yu Z, Yin C, Wang Q, Zhu D. Hashimoto's thyroiditis impairs embryo implantation by compromising endometrial morphology and receptivity markers in euthyroid mice. Reprod Biol Endocrinol 2019; 17:94. [PMID: 31729993 PMCID: PMC6857235 DOI: 10.1186/s12958-019-0526-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/30/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Although thyroid dysfunction caused by Hashimoto's thyroiditis (HT) is believed to be related to implantation failure due to the underdevelopment of the receptive uterus, it is unknown whether HT itself, even in the euthyroid state, impairs embryo implantation associated with endometrial receptivity defects. To address whether HT itself can affect endometrial receptivity accompanied by implantation alterations, a euthyroid HT model was established in mice. METHODS Female NOD mice were immunized twice with thyroglobulin and adjuvant to induce the experimental HT model. Four weeks after the second treatment, the mice were normally mated, and pregnant ones were sacrificed in implantation window for thyroid-related parameter and steroid hormones measurements by electrochemiluminescence immunoassay and enzyme-linked immunosorbent assay and implantation site number calculation by uptake of Chicago Blue dye. In addition, certain morphological features of endometrial receptivity were observed by hematoxylin-eosin staining and scanning electron microscopy, and the expression of other receptivity markers were analyzed by immunohistochemistry, RT-qPCR or Western Blot. RESULTS HT mice displayed intrathyroidal monocyte infiltration and elevated serum thyroid autoantibody levels without thyroid dysfunction, defined as euthyroid HT in humans. Euthyroid HT resulted in implantation failure, fewer pinopodes, retarded pinopode maturation, and inhibited expression of receptivity markers: estrogen receptor α (ERα), integrin β3, leukemia inhibitory factor (LIF), and cell adhesion molecule-1 (ICAM-1). Interestingly, despite this compromised endometrial receptivity response, no statistical differences in serum estradiol or progesterone level between groups were found. CONCLUSIONS These findings are the first to indicate that HT induces a nonreceptive endometrial milieu in the euthyroid state, which may underlie the detrimental effects of HT itself on embryo implantation.
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Affiliation(s)
- Zhangbi Wu
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Yaojun Cai
- Department of Endocrinology, the First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Qin Xia
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Tiantian Liu
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Hao Yang
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Fen Wang
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Nan Wang
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Zhen Yu
- Anhui Province Key Laboratory of Reproductive Health and Genetics, Anhui Medical University, Hefei, 230032, China
| | - Chunying Yin
- Center for Integrative Imaging, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, 230027, China
| | - Qunan Wang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China.
| | - Defa Zhu
- Department of Geriatric Endocrinology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China.
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Mehmood K, Zhang H, Jiang X, Yao W, Tong X, Iqbal MK, Rehman MU, Iqbal M, Waqas M, Qamar H, Zhang J, Li J. Ligustrazine recovers thiram-induced tibial dyschondroplasia in chickens: Involvement of new molecules modulating integrin beta 3. Ecotoxicol Environ Saf 2019; 168:205-211. [PMID: 30388538 DOI: 10.1016/j.ecoenv.2018.10.080] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/19/2018] [Accepted: 10/22/2018] [Indexed: 06/08/2023]
Abstract
Tetramethyl thiuram disulfide (thiram) is a dithiocarbamate, which is extensively used in agriculture as pesticide and fungicide for treating grains intended for seed purposes and also for storing food grains. One of the most evident and detrimental effect produced by thiram is tibial dyschondroplasia (TD) in many avian species, by feeding diets containing thiram, a growth plate cartilage disease. TD is characterized by the lack of blood vessels and impaired vascular invasion of the hypertrophic chondrocyte resulting in the massive cell death. This study investigated the effects of ligustrazine on the treatment and control of thiram induced-TD. A total of 210 chicks were divided into three equal groups (n = 70): control group (received standard diet), TD group (feed on thiram containing diet from day 3-7), and ligustrazine group (feed on thiram containing diet from day 3-7 and after that ligustrazine @ 30 mg/kg from day 8 to day 18). During the experiment, the lameness, production parameters, tibia bone indicators, pathological index changes and integrin beta 3 (ITGB3) expressions were examined. The results reveal that ligustrazine plays an important role in improving angiogenesis and decreasing chondrocytes damage in TD chicks via a new molecule modulating ITGB3. So, the administration of ligustrazine can be an important way to cope with the losses and costs associated with TD in commercial poultry farming and animal welfare issue due to environmental contamination of thiram.
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Affiliation(s)
- Khalid Mehmood
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; University College of Veterinary & Animal Sciences, Islamia University of Bahawalpur, 63100, Pakistan
| | - Hui Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xiong Jiang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Hubei Three Gorges Polytechnic, Yichang 443000, Hubei, PR China
| | - Wangyuan Yao
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xiaole Tong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Kashif Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mujeeb Ur Rehman
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mujahid Iqbal
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Muhammad Waqas
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; Faculty of Veterinary & Animal Sciences, University of the Poonch, Rawalakot, District Poonch, 12350 Azad Jammu & Kashmir, Pakistan
| | - Hammad Qamar
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jialu Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China; College of Animals Husbandry and Veterinary Medicine, Tibet Agricultural and Animal Husbandry University, Linzhi, Tibet 860000, PR China.
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Zhi H, Ahlen MT, Thinn AMM, Weiler H, Curtis BR, Skogen B, Zhu J, Newman PJ. High-resolution mapping of the polyclonal immune response to the human platelet alloantigen HPA-1a (Pl A1). Blood Adv 2018; 2:3001-3011. [PMID: 30413435 PMCID: PMC6234362 DOI: 10.1182/bloodadvances.2018023341] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 10/10/2018] [Indexed: 12/11/2022] Open
Abstract
Antibodies to platelet-specific antigens are responsible for 2 clinically important bleeding disorders: posttransfusion purpura and fetal/neonatal alloimmune thrombocytopenia (FNAIT). The human platelet-specific alloantigen 1a/1b (HPA-1a/1b; also known as PlA1/A2) alloantigen system of human platelet membrane glycoprotein (GP) IIIa is controlled by a Leu33Pro polymorphism and is responsible for ∼80% of the cases of FNAIT. Local residues surrounding polymorphic residue 33 are suspected to have a profound effect on alloantibody binding and subsequent downstream effector events. To define the molecular requirements for HPA-1a alloantibody binding, we generated transgenic mice that expressed murine GPIIIa (muGPIIIa) isoforms harboring select humanized residues within the plexin-semaphorin-integrin (PSI) and epidermal growth factor 1 (EGF1) domains and examined their ability to support the binding of a series of monoclonal and polyclonal HPA-1a-specific antibodies. Humanizing the PSI domain of muGPIIIa was sufficient to recreate the HPA-1a epitope recognized by some HPA-1a-specific antibodies; however, humanizing distinct amino acids within the linearly distant but conformationally close EGF1 domain was required to enable binding of others. These results reveal the previously unsuspected complex heterogeneity of the polyclonal alloimmune response to this clinically important human platelet alloantigen system. High-resolution mapping of this alloimmune response may improve diagnosis of FNAIT and should facilitate the rational design and selection of contemplated prophylactic and therapeutic anti-HPA-1a reagents.
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Affiliation(s)
- Huiying Zhi
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
| | - Maria Therese Ahlen
- Immunology Research Group, Department of Medical Biology, The Arctic University of Norway, Tromsø, Norway
- Department of Laboratory Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Aye Myat Myat Thinn
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
- Department of Biochemistry
| | - Hartmut Weiler
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
| | - Brian R Curtis
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
| | - Bjørn Skogen
- Immunology Research Group, Department of Medical Biology, The Arctic University of Norway, Tromsø, Norway
- Department of Laboratory Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Jieqing Zhu
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
- Department of Biochemistry
| | - Peter J Newman
- Blood Research Institute, BloodCenter of Wisconsin, Milwaukee, WI
- Department of Pharmacology, and
- Department of Cell Biology, Medical College of Wisconsin, Milwaukee, WI
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Abstract
Cells use adhesion receptor integrins to communicate with their surroundings. Integrin activation and cellular signaling are coupled with change from bent to extended conformation. β3 integrins, including αIIbβ3, which is essential for the function of platelets in hemostasis and thrombosis, and αVβ3, which plays multiple roles in diverse cell types, have been prototypes in understanding integrin structure and function. Despite extensive structural studies, a high-resolution integrin structure in an extended conformation remains to be determined. The human β3 Leu33Pro polymorphism, located at the PSI domain, defines human platelet-specific alloantigens 1a and 1b (HPA-1a/b), immune response to which is a cause of posttransfusion purpura and fetal/neonatal alloimmune thrombocytopenia. Leu33Pro substitution has also been suggested to be a risk factor for thrombosis. Here we report the crystal structure of the β3 headpiece in either Leu33 or Pro33 form, both of which reveal intermediate and fully extended conformations coexisting in 1 crystal. These were used to build high-resolution structures of full-length β3 integrin in the intermediate and fully extended states, agreeing well with the corresponding conformations observed by electron microscopy. Our structures reveal how β3 integrin becomes extended at its β-knee region and how the flexibility of β-leg domains is determined. In addition, our structures reveal conformational changes of the PSI and I-EGF1 domains upon β3 extension, which may affect the binding of conformation-dependent anti-HPA-1a alloantibodies. Our structural and functional data show that Leu33Pro substitution does not directly alter the conformation or ligand binding of β3 integrin.
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Affiliation(s)
- Dongwen Zhou
- Blood Research Institute, BloodCenter of Wisconsin, part of Versiti, Milwaukee, WI
| | - Aye Myat Myat Thinn
- Blood Research Institute, BloodCenter of Wisconsin, part of Versiti, Milwaukee, WI
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI; and
| | - Yan Zhao
- Blood Research Institute, BloodCenter of Wisconsin, part of Versiti, Milwaukee, WI
- Department of Physiology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhengli Wang
- Blood Research Institute, BloodCenter of Wisconsin, part of Versiti, Milwaukee, WI
| | - Jieqing Zhu
- Blood Research Institute, BloodCenter of Wisconsin, part of Versiti, Milwaukee, WI
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI; and
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Chen CP, Chen CY, Wu YH, Chen CY. Oxidative stress reduces trophoblast FOXO1 and integrin β3 expression that inhibits cell motility. Free Radic Biol Med 2018; 124:189-198. [PMID: 29885786 DOI: 10.1016/j.freeradbiomed.2018.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 06/05/2018] [Accepted: 06/06/2018] [Indexed: 11/21/2022]
Abstract
Preeclampsia is a serious pregnancy complication associated with placental oxidative stress and impaired trophoblast migration. The mechanism of defective trophoblast migration remains unknown. Forkhead box O1 (FOXO1) is a transcription factor. Integrin β3 is involved in cell motility. We hypothesized that FOXO1 mediates expression of trophoblast integrin β3, which could be impaired by oxidative stress and have implications in preeclampsia. The expressions of FOXO1 and integrin β3 were significantly reduced in preeclamptic placentas (n = 15) compared to that of controls (n = 15; p < 0.01). HTR-8/SVneo and JEG-3 trophoblasts were transfected to express wild-type FOXO1-WT or constitutively-expressed nuclear mutant form, FOXO1-AAA. The FOXO1 in HTR-8/SVneo and 3A-Sub-E trophoblasts was silenced by small interfering RNA. AKT-mediated phosphorylation inactivated FOXO1, but FOXO1-AAA was not phosphorylated. The expression of trophoblast integrin β3 was significantly elevated by FOXO1 overexpression and inhibited by FOXO1 knockdown. FOXO1 regulates integrin β3 at the transcriptional level via binding to the putative FOXO1 response element site between position -1154 to -1139 (TGAGATGTTTTGAAAG) in HTR-8/SVneo trophoblasts. The level of phosphorylated FOXO1 was decreased, and the FOXO1 level was increased in trophoblasts treated with AKT inhibitor MK2206, leading to upregulation of integrin β3. The capabilities of trophoblast adhesion and migration were enhanced by FOXO1-overexpression or MK2206, and inhibited by silencing FOXO1 or oxidative stress with H2O2. These results suggest that FOXO1 enhances trophoblast integrin β3 expression, and mediates cell adhesion and migration. By affecting the expression of FOXO1 and cell motility in trophoblasts, oxidative stress plays a role in the development of preeclampsia.
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Affiliation(s)
- Chie-Pein Chen
- Department of Medical Research, MacKay Memorial Hospital, 92 Section 2 Zhong-Shan North Road, Taipei 104, Taiwan; Division of High Risk Pregnancy, MacKay Memorial Hospital, Taipei, Taiwan.
| | - Cheng-Yi Chen
- Department of Medical Research, MacKay Memorial Hospital, 92 Section 2 Zhong-Shan North Road, Taipei 104, Taiwan
| | - Yi-Hsin Wu
- Department of Medical Research, MacKay Memorial Hospital, 92 Section 2 Zhong-Shan North Road, Taipei 104, Taiwan
| | - Chia-Yu Chen
- Department of Medical Research, MacKay Memorial Hospital, 92 Section 2 Zhong-Shan North Road, Taipei 104, Taiwan
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Su Y, Tian H, Wei L, Fu G, Sun T. Integrin β3 inhibits hypoxia-induced apoptosis in cardiomyocytes. Acta Biochim Biophys Sin (Shanghai) 2018; 50:658-665. [PMID: 29800236 DOI: 10.1093/abbs/gmy056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Indexed: 01/01/2023] Open
Abstract
Hypoxia-induced apoptosis plays an important role in cardiovascular diseases. Integrin β3 is one of the main integrin heterodimer receptors on the surface of cardiac myocytes. However, despite the important role that integrin β3 plays in the cardiovascular disease, its exact role in the hypoxia response remains unclear. Hence, in the present investigation we aimed to study the role of integrin β3 in hypoxia-induced apoptosis in H9C2 cells and primary rat myocardial cells. MTT assay, flow cytometry and TUNEL assay results showed that hypoxia inhibited cardiomyocyte proliferation and induced cardiomyocyte apoptosis. The expression levels of integrin β3 and HIF1α were upregulated in hypoxia-induced cardiomyocytes as revealed by real-time PCR and western blot analysis. Furthermore, knockdown of integrin β3 expression by siRNA increased hypoxia-induced cardiomyocyte apoptosis. In addition, integrin β3 overexpression weakened hypoxia-induced cardiomyocyte apoptosis. The protein expressions of integrin β3 and HIF1α were upregulated in acute myocardial infarction rat cardiac tissues compared with the control rat cardiac tissues. Our data suggest that integrin β3 plays a protective role in cardiomyocytes during hypoxia-induced apoptosis.
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Affiliation(s)
- Yifan Su
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hua Tian
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lijiang Wei
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guohui Fu
- Pathology Center, Shanghai General Hospital/Faculty of Basic Medicine, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ting Sun
- Department of Cardiology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Cecati M, Corradetti A, Sartini D, Pozzi V, Giannubilo SR, Saccucci F, Ciavattini A, Emanuelli M. Expression of extracellular matrix and adhesion proteins in pelvic organ prolapse. Cell Mol Biol (Noisy-le-grand) 2018; 64:142-148. [PMID: 29729708 DOI: 10.14715/cmb/2018.64.5.24] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 03/20/2018] [Indexed: 02/18/2024]
Abstract
Pelvic organ prolapse (POP) is a common disorder in women. It is characterized by the descent of the vaginal wall with consequent drop of pelvic organs. Pregnancy, labour and childbirth seem to be important events leading to the development of POP, since they are associated with prolonged stretch and mechanical stress of muscles, ligaments and connective tissue supporting pelvic organs. In pubocervical fascia, we explored the expression level of extracellular matrix and adhesion molecules. Tissue samples were obtained from twenty patients with POP who underwent cystocele repair, and from twenty control subjects during hysterectomy surgery. The PCR array analysis was performed and data were confirmed by Real-Time PCR and Western Blot. Real-Time PCR results showed a significant upregulation for extracellular matrix protein 1 (ECM1) and integrin beta 3 (ITGB3) and a significant downregulation for FBLN5 in POP group. The decreased mRNA expression of FBLN5 in pathological samples was paralleled by a quantitative decrease in the corresponding protein, as Western Blot test highlighted. Our data provide an understanding of molecular mechanisms involved in POP-related pathophysiological processes and might represent an important tool to develop novel therapeutic agents for the treatment of this condition.
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Affiliation(s)
- Monica Cecati
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Alessandra Corradetti
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Davide Sartini
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Valentina Pozzi
- New York-Marche Structural Biology Center (NY-MaSBiC), Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Stefano R Giannubilo
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Franca Saccucci
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Andrea Ciavattini
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - Monica Emanuelli
- Department of Clinical Sciences, Polytechnic University of Marche, Via Ranieri 65, 60131 Ancona, Italy
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Pillois X, Peters P, Segers K, Nurden AT. In silico analysis of structural modifications in and around the integrin αIIb genu caused by ITGA2B variants in human platelets with emphasis on Glanzmann thrombasthenia. Mol Genet Genomic Med 2018; 6:249-260. [PMID: 29385657 PMCID: PMC5902390 DOI: 10.1002/mgg3.365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/01/2017] [Accepted: 12/20/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Studies on the inherited bleeding disorder, Glanzmann thrombasthenia (GT), have helped define the role of the αIIbβ3 integrin in platelet aggregation. Stable bent αIIbβ3 undergoes conformation changes on activation allowing fibrinogen binding and its taking an extended form. The αIIb genu assures the fulcrum of the bent state. Our goal was to determine how structural changes induced by missense mutations in the αIIb genu define GT phenotype. METHODS Sanger sequencing of ITGA2B and ITGB3 in the index case followed by in silico modeling of all known GT-causing missense mutations extending from the lower part of the β-propeller, and through the thigh and upper calf-1 domains. RESULTS A homozygous c.1772A>C transversion in exon 18 of ITGA2B coding for a p.Asp591Ala substitution in an interconnecting loop of the lower thigh domain of αIIb in a patient with platelets lacking αIIbβ3 led us to extend our in silico modeling to all 16 published disease-causing missense variants potentially affecting the αIIb genu. Modifications of structuring H-bonding were the major cause in the thigh domain although one mutation gave mRNA decay. In contrast, short-range changes induced in calf-1 appeared minor suggesting long-range effects. All result in severe to total loss of αIIbβ3 in platelets. The absence of mutations within a key Ca2+-binding loop in the genu led us to scan public databases; three potential single allele variants giving major structural changes were identiffied suggesting that this key region is not protected from genetic variation. CONCLUSIONS It appears that the αIIb genu is the object of stringent quality control to prevent platelets from circulating with activated and extended integrin.
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Affiliation(s)
- Xavier Pillois
- Institut de Rhythmologie et de Modélisation Cardiaque, Plateforme Technologique d'Innovation BiomédicaleHôpital Xavier ArnozanBordeauxFrance
- Université de BordeauxINSERM U1034BordeauxFrance
| | - Pierre Peters
- Laboratoire de Thrombose‐HémostaseService d'Hématologie biologique et Immuno‐HématologieCHU Sart TilmanLiègeBelgium
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Grinshtein YI, Kosinova AA, Grinshtein IY, Subbotina TN, Savchenko AA. The Prognostic Value of Combinations of Genetic Polymorphisms in the ITGB3, ITGA2, and CYP2C19*2 Genes in Predicting Cardiovascular Outcomes After Coronary Bypass Grafting. Genet Test Mol Biomarkers 2018; 22:259-265. [PMID: 29461866 DOI: 10.1089/gtmb.2017.0177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
AIM To determine if there are any associations between the single nucleotide polymorphisms (SNPs): rs2046934, rs1126643, rs5918, rs6065, rs4244285; rs4986893 and the occurrence of cardiovascular events (CVE) in patients following coronary artery bypass grafting (CABG) surgery. MATERIALS AND METHODS The study included 130 CABG patients with stable angina grades II-IV. After CABG 69 of the patients were treated with acetylsalicylic acid (ASA) alone, and 61 received dual antiplatelet therapy (ASA+clopidogrel). Platelet function was assessed by light transmission aggregometry with adenosinediphosphate and arachidonic acid. The SNPs were identified by real-time polymerase chain reaction (PCR) with electrophoretic detection. The mean follow-up period was equal to 10.9 ± 5.2 months. The primary end point included the composite of all-cause mortality, myocardial infarction (MI), and ischemic stroke. RESULTS During the follow-up period 12 CVE were registered: 3 deaths, 6 MI, 3 strokes. Patients with composite mutant alleles of ITGB3+CYP2C19*2 or CYP2C19*2 + ITGA2, and with the mutant allele (*2) of CYP2C19, met end points more often than patients with other gene combinations (wild-type homozygotes, presence of one mutant allele of ITGB3 or ITGA2, the composite of mutant alleles of ITGB3+ITGA2 or ITGB3+ITGA2+CYP2C19*2; hazard ratio = 4, 95% confidence interval: 2.19-7.29, p = 0.008). CONCLUSION Carriage of a combination of mutant alleles in multiple genes including ITGB3+CYP2C19*2 or CYP2C19*2 + ITGA2 or CYP2C19*2 are possible predictors of CVE in patients after CABG.
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Affiliation(s)
- Yuriy I Grinshtein
- 1 Therapeutic Department of Institute of Postgraduate Education, Krasnoyarsk State Medical University named after prof.V.F.Voyno-Yaseneckiy, Krasnoyarsk, Russian Federation
| | - Aleksandra A Kosinova
- 1 Therapeutic Department of Institute of Postgraduate Education, Krasnoyarsk State Medical University named after prof.V.F.Voyno-Yaseneckiy, Krasnoyarsk, Russian Federation
| | - Igor Y Grinshtein
- 2 Department of Polyclinic Therapy, Family Medicine and Healthy Way of Life, Krasnoyarsk State Medical University named after prof.V.F.Voyno-Yaseneckiy, Krasnoyarsk, Russian Federation
| | - Tatyana N Subbotina
- 3 Scientific and Practical Laboratory of Molecular and Genetic Methods of Research, Siberian Federal University , Krasnoyarsk, Russian Federation
| | - Andrey A Savchenko
- 4 Research Institute of Medical Problems of the North , Siberian Division of the Russian Academy of Medical Sciences, Krasnoyarsk, Russian Federation
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Hu L, Zang MD, Wang HX, Zhang BG, Wang ZQ, Fan ZY, Wu H, Li JF, Su LP, Yan M, Zhu ZQ, Yang QM, Huang Q, Liu BY, Zhu ZG. G9A promotes gastric cancer metastasis by upregulating ITGB3 in a SET domain-independent manner. Cell Death Dis 2018; 9:278. [PMID: 29449539 PMCID: PMC5833452 DOI: 10.1038/s41419-018-0322-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 01/02/2018] [Accepted: 01/12/2018] [Indexed: 12/11/2022]
Abstract
Tumor metastasis is the leading cause of death in patients with advanced gastric cancer (GC). Limited therapeutic regimens are available for this condition, which is associated with a poor prognosis, and the mechanisms underlying tumor metastasis remain unclear. In the present study, increased histone methyltransferase G9A expression in GC tissues correlated with advanced stage and shorter overall survival, and in vitro and in vivo experiments revealed that G9A promoted tumor invasion and metastasis. Moreover, we observed that Reg IV induced G9A via the p-ERK/p-SP1 pathway. SP1 directly binds the G9A promoter and enhances G9A expression, and upregulated G9A then forms a transcriptional activator complex with P300 and GR, thereby promoting ITGB3 expression induced by dexamethasone (DEX) and contributing to GC metastasis. However, the G9A-mediated increase in ITGB3 expression was not dependent on the SET domain and methyltransferase activity of G9A. This study demonstrates that G9A is an independent prognostic marker and promotes metastasis in GC, thus suggesting that it may be a tumor biomarker and potential therapeutic target in GC.
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Affiliation(s)
- Lei Hu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
- Department of General Surgery, Affiliated Provincial Hospital of Anhui Medical University, 230001, Hefei, People's Republic of China
| | - Ming-de Zang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - He-Xiao Wang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Bao-Gui Zhang
- Affiliated Hospital of Jining Medical University, 272000, Jining, People's Republic of China
| | - Zhen-Qiang Wang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Zhi-Yuan Fan
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Huo Wu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Jian-Fang Li
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Li-Ping Su
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Min Yan
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Zhi-Qiang Zhu
- Department of General Surgery, Affiliated Provincial Hospital of Anhui Medical University, 230001, Hefei, People's Republic of China
| | - Qiu-Meng Yang
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China
| | - Qiang Huang
- Department of General Surgery, Affiliated Provincial Hospital of Anhui Medical University, 230001, Hefei, People's Republic of China
| | - Bing-Ya Liu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China.
| | - Zheng-Gang Zhu
- Department of Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 200025, Shanghai, People's Republic of China.
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Miyashita N, Onozawa M, Hayasaka K, Yamada T, Migita O, Hata K, Okada K, Goto H, Nakagawa M, Hashimoto D, Kahata K, Kondo T, Kunishima S, Teshima T. A novel heterozygous ITGB3 p.T720del inducing spontaneous activation of integrin αIIbβ3 in autosomal dominant macrothrombocytopenia with aggregation dysfunction. Ann Hematol 2018; 97:629-640. [PMID: 29380037 DOI: 10.1007/s00277-017-3214-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 12/18/2017] [Indexed: 11/26/2022]
Abstract
We identified a novel heterozygous ITGB3 p.T720del mutation in a pedigree with macrothrombocytopenia exhibiting aggregation dysfunction. Platelet aggregation induced by ADP and collagen was significantly reduced, while ristocetin aggregation was normal. Integrin αIIbβ3 was partially activated in a resting status, but platelet expression of αIIbβ3 was downregulated. Functional analysis using a cell line showed spontaneous phosphorylation of FAK in αIIb/β3 (p.T720del)-transfected 293T cells in suspension conditions. Abnormal cytoplasmic protrusions, membrane ruffling, and cytoplasmic localization of αIIbβ3 were observed in αIIb/β3 (p.T720del)-transfected CHO cells. Such morphological changes were reversed by treatment with an FAK inhibitor. These findings imply spontaneous, but partial, activation of αIIbβ3 followed by phosphorylation of FAK as the initial mechanism of abnormal thrombopoiesis. Internalization and decreased surface expression of αIIbβ3 would contribute to aggregation dysfunction. We reviewed the literature of congenital macrothrombocytopenia associated with heterozygous ITGA2B or ITGB3 mutations. Reported mutations were highly clustered at the membrane proximal region of αIIbβ3, which affected the critical interaction between αIIb R995 and β3 D723, resulting in a constitutionally active form of the αIIbβ3 complex. Macrothrombocytopenia caused by a heterozygous activating mutation of ITGA2B or ITGB3 at the membrane proximal region forms a distinct entity of rare congenital thrombocytopenia.
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Affiliation(s)
- Naohiro Miyashita
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Masahiro Onozawa
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan.
| | - Koji Hayasaka
- Division of Laboratory and Transfusion Medicine, Hokkaido University Hospital, Sapporo, Japan
| | - Takahiro Yamada
- Division of Clinical Genetics, Hokkaido University Hospital, Sapporo, Japan
| | - Ohsuke Migita
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kenichiro Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Kohei Okada
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Hideki Goto
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Masao Nakagawa
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Daigo Hashimoto
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Kaoru Kahata
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Takeshi Kondo
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
| | - Shinji Kunishima
- Department of Advanced Diagnosis, Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Takanori Teshima
- Department of Hematology, Hokkaido University Faculty of Medicine, Graduate School of Medicine, Kita 15, Nishi 7, Kita-ku, Sapporo, 0608638, Japan
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Abstract
Aims Mounting evidence indicates that deregulation of apoptosis is involved in the mechanisms of cancer development. Integrins are cell adhesion receptors that mediate cell survival and migration. A recent study showed that unligated integrin beta 3 (ITGB3) induced apoptosis by recruitment of caspase-8. The aim of the present study was to explore the possibility that genetic alteration of the ITGB3 gene is involved in the development of human cancers possibly by inactivating the apoptosis function of ITGB3. Methods We analyzed the coding region of the cytoplasmic domain of the human ITGB3 gene for the detection of somatic mutations in 100 gastric, 90 colorectal, 100 non-small cell lung, 43 urinary bladder and 50 head-neck cancers by a polymerase chain reaction-based, single-strand conformation polymorphism. Results We found an identical ITGB3 mutation in two unrelated patient samples (one in colorectal and the other in bladder cancer). The ITGB3 mutation was a missense mutation which would substitute an amino acid (E757K). Conclusions The data suggested that the proapoptotic ITGB3 cytoplasmic domain is rarely mutated in common human cancers and may not play an important role in the development of the cancers.
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Affiliation(s)
- Nam Jin Yoo
- Department of Pathology, College of Medicine, Catholic University of Korea, Seoul, Korea
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45
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Johansen S, Brenner AK, Bartaula-Brevik S, Reikvam H, Bruserud Ø. The Possible Importance of β3 Integrins for Leukemogenesis and Chemoresistance in Acute Myeloid Leukemia. Int J Mol Sci 2018; 19:ijms19010251. [PMID: 29342970 PMCID: PMC5796198 DOI: 10.3390/ijms19010251] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 12/20/2017] [Accepted: 01/08/2018] [Indexed: 12/25/2022] Open
Abstract
Acute myeloid leukemia (AML) is an aggressive bone marrow malignancy where the immature leukemia cells communicate with neighboring cells through constitutive cytokine release and through their cell surface adhesion molecules. The primary AML cells express various integrins. These heterodimeric molecules containing an α and a β chain are cell surface molecules that bind extracellular matrix molecules, cell surface molecules and soluble mediators. The β3 integrin (ITGB3) chain can form heterodimers only with the two α chains αIIb and αV. These integrins are among the most promiscuous and bind to a large number of ligands, including extracellular matrix molecules, cell surface molecules and soluble mediators. Recent studies suggest that the two β3 integrins are important for leukemogenesis and chemosensitivity in human AML. Firstly, αIIb and β3 are both important for adhesion of AML cells to vitronectin and fibronectin. Secondly, β3 is important for the development of murine AML and also for the homing and maintenance of the proliferation for xenografted primary human AML cells, and for maintaining a stem cell transcriptional program. These last effects seem to be mediated through Syk kinase. The β3 expression seems to be regulated by HomeboxA9 (HoxA9) and HoxA10, and the increased β3 expression then activates spleen tyrosine kinase (Syk) and thereby contributes to cytokine hypersensitivity and activation of β2 integrins. Finally, high integrin αV/β3 expression is associated with an adverse prognosis in AML and decreased sensitivity to the kinase inhibitor sorafenib; this integrin can also be essential for osteopontin-induced sorafenib resistance in AML. In the present article, we review the experimental and clinical evidence for a role of β3 integrins for leukemogenesis and chemosensitivity in AML.
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MESH Headings
- Animals
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/metabolism
- Disease Models, Animal
- Drug Resistance, Neoplasm/genetics
- Gene Expression Regulation, Neoplastic
- Humans
- Integrin beta3/chemistry
- Integrin beta3/genetics
- Integrin beta3/metabolism
- Integrins/chemistry
- Integrins/genetics
- Integrins/metabolism
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Ligands
- Multigene Family
- Prognosis
- Protein Binding
- Signal Transduction
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Affiliation(s)
- Silje Johansen
- Section for Hematology, Department of Medicine, Haukeland University Hospital, N-5021 Bergen, Norway.
| | - Annette K Brenner
- Section for Hematology, Department of Medicine, Haukeland University Hospital, N-5021 Bergen, Norway.
- Section for Hematology, Institute of Clinical Science, University of Bergen, 5007 Bergen, Norway.
| | - Sushma Bartaula-Brevik
- Section for Hematology, Institute of Clinical Science, University of Bergen, 5007 Bergen, Norway.
| | - Håkon Reikvam
- Section for Hematology, Department of Medicine, Haukeland University Hospital, N-5021 Bergen, Norway.
- Section for Hematology, Institute of Clinical Science, University of Bergen, 5007 Bergen, Norway.
| | - Øystein Bruserud
- Section for Hematology, Department of Medicine, Haukeland University Hospital, N-5021 Bergen, Norway.
- Section for Hematology, Institute of Clinical Science, University of Bergen, 5007 Bergen, Norway.
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46
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Losonczy G, Rosenberg N, Kiss C, Kappelmayer J, Vereb G, Kerényi A, Balogh I, Muszbek L. A novel homozygous mutation (1619delC) in GPIIb gene associated with Glanzmann thrombasthenia, the decay of GPIIb-mRNA and the synthesis of a truncated GPIIb unable to form complex with GPIIIa. Thromb Haemost 2017; 93:904-9. [PMID: 15886807 DOI: 10.1160/th04-12-0848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThe absence of agonist-induced platelet aggregation and the lack of fibrinogen receptor (GPIIb/IIIa) on the platelet surface demonstrated that the severe hemorrhagic complications of a child of Romany descent were caused by Glanzmann thrombasthenia. DNA sequencing revealed a novel homozygous deletion of a cytosine (1619delC) in the GPIIb gene causing a frameshift and predicting a novel stop codon at position 533 following 24 altered amino acids. Both parents possessed the same deletion in heterozygous form. The amount of GPIIb mRNA in the patient’s platelets was 0.06% of the amount measured in control platelets. Neither GPIIb nor its truncated form could be detected in the platelets of the patient by Western blotting, while a small amount of GPIIIa was demonstrated. Quantitative flow cytometric analysis showed an elevated number of vitronectin receptors, a component of which is GPIIIa, on the patient’s platelets. The surface expression of vitronectin receptor on thrombasthenic, but not on normal platelets was further increased by activation with thrombin receptor agonist peptide. BHK cells transfected with wild type GPIIIa and mutated GPIIb failed to express any mature GPIIb or pro-GPIIb. Immunoprecipitation with a polyclonal antibody recognizing both GPIIb and GPIIIa recovered a 60 kDa truncated form of GPIIb. This band was absent when immunoprecipitation was carried out with an antibody recognizing GPIIIa, suggesting that the truncated protein, lacking calf-1, calf-2 domains and major part of the thigh domain, is unable to form complex with GPIIIa.
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Affiliation(s)
- Gergely Losonczy
- Clinical Research Center, University of Debrecen, Medical and Health Science Center, Hungary
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47
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Zhang K, Tan J, Su J, Liang H, Shen L, Li C, Pan G, Yang L, Cui H. Integrin β3 plays a novel role in innate immunity in silkworm, Bombyx mori. Dev Comp Immunol 2017; 77:307-317. [PMID: 28826989 DOI: 10.1016/j.dci.2017.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 08/16/2017] [Accepted: 08/17/2017] [Indexed: 06/07/2023]
Abstract
Integrins are transmembrane receptors that play essential roles in many physiological and pathological processes through cell-to-cell and cell-to-extracellular matrix (ECM) interactions. In the current study, a 2653-bp full-length cDNA of a novel integrin β subunit (designated Bmintegrin β3) was obtained from silkworm hemocytes. Bmintegrin β3 has the typical conserved structure of the integrin β family. The qRT-PCR results showed that Bmintegrin β3 was specifically expressed in the hematological system and that its expression was significantly increased after challenge with different types of PAMPs and bacteria. The recombinant Bmintegrin β3 protein displayed increased aggregation with S. aureus, suggesting that Bmintegrin β3 might directly bind to PAMPs. Interestingly, Bmintegrin β3 knockdown promoted PPO1, PPO2, BAEE, SPH78, SPH125, and SPH127 expression and accelerated the melanization process. Unexpectedly, the expression of genes related to phagocytosis, the Toll pathway, and the IMD pathway was also up-regulated after Bmintegrin β3 knockdown. Thus, Bmintegrin β3 might be a pattern recognition protein (PRP) for PAMPs and might directly bind to bacteria and enhance the phagocytosis activity of hemocytes. Moreover, Bmintegrin β3 and its ligand might negatively regulate the expression of immune-related genes through an unknown mechanism. In summary, our studies provide new insights into the immune functions of Bmintegrin β3 from the silkworm, Bombyx mori.
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Affiliation(s)
- Kui Zhang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Juan Tan
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Jingjing Su
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Hanghua Liang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Li Shen
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Chongyang Li
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Guangzhao Pan
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Liqun Yang
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, The Institute of Sericulture and Systems Biology, Southwest University, Chongqing 400716, China.
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48
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Gorchakova O, Koch W, Mehilli J, von Beckerath N, Schwaiger M, Schömig A, Kastrati A. PlA polymorphism of the glycoprotein IIIa and efficacy of reperfusion therapy in patients with acute myocardial infarction. Thromb Haemost 2017; 91:141-5. [PMID: 14691579 DOI: 10.1160/th03-06-0341] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThe PlA polymorphism of the platelet glycoprotein IIIa gene is associated with altered platelet function and response to antiplatelet drugs. We sought to assess whether the PlA polymorphism influences myocardial salvage achieved by reperfusion therapy in patients with acute myocardial infarction. We analyzed 292 patients enrolled in 2 randomized trials that compared stenting plus abciximab with thrombolysis (alteplase alone or alteplase plus abciximab) in acute myocardial infarction. Patients were genotyped for the PlA polymorphism using polymerase chain reaction with fluorogenic probes. Technetium-99m sestamibi was injected before and 1-2 weeks after reperfusion treatment. The scintigrams enabled the calculation of the initial perfusion defect, final infarct size, and the proportion of initial defect salvaged by reperfusion (salvage index). Clinical follow-up was done up to 18 months after primary treatment. The genotype distribution was as follows: PlA2/A2 in 3.4%, PlA1/A2 in 24.7% and PlA1/A1 in 71.9% of patients. There were no significant differences between PlA2 allele carriers and PlA1/A1 patients in salvage index (0.46±0.50 vs. 0.41±0.43, respectively, P=0.48), final infarct size (16.8±20.8% vs. 18.4±19.1% of left ventricle, respectively, P=0.46) as well as 18-month mortality (8.5% vs.7.1%, respectively, P=0.69). The lack of relationship between PlA2 allele and myocardial salvage was observed for both reperfusion strategies, stenting and thrombolysis. Thus, these findings show that the functional PlA polymorphism of platelet glycoprotein IIIa has no influence on the degree of myocardial salvage achieved by reperfusion therapies in patients with acute myocardial infarction.
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Affiliation(s)
- Olga Gorchakova
- Deutsches Herzzentrum, I. Medizinische Klinik rechts der Isar, Technische Universität München, Munich, Germany
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49
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Ross MH, Esser AK, Fox GC, Schmieder AH, Yang X, Hu G, Pan D, Su X, Xu Y, Novack DV, Walsh T, Colditz GA, Lukaszewicz GH, Cordell E, Novack J, Fitzpatrick JAJ, Waning DL, Mohammad KS, Guise TA, Lanza GM, Weilbaecher KN. Bone-Induced Expression of Integrin β3 Enables Targeted Nanotherapy of Breast Cancer Metastases. Cancer Res 2017; 77:6299-6312. [PMID: 28855208 DOI: 10.1158/0008-5472.can-17-1225] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/26/2017] [Accepted: 08/24/2017] [Indexed: 11/16/2022]
Abstract
Bone metastases occur in approximately 70% of metastatic breast cancer patients, often leading to skeletal injuries. Current treatments are mainly palliative and underscore the unmet clinical need for improved therapies. In this study, we provide preclinical evidence for an antimetastatic therapy based on targeting integrin β3 (β3), which is selectively induced on breast cancer cells in bone by the local bone microenvironment. In a preclinical model of breast cancer, β3 was strongly expressed on bone metastatic cancer cells, but not primary mammary tumors or visceral metastases. In tumor tissue from breast cancer patients, β3 was significantly elevated on bone metastases relative to primary tumors from the same patient (n = 42). Mechanistic investigations revealed that TGFβ signaling through SMAD2/SMAD3 was necessary for breast cancer induction of β3 within the bone. Using a micelle-based nanoparticle therapy that recognizes integrin αvβ3 (αvβ3-MPs of ∼12.5 nm), we demonstrated specific localization to breast cancer bone metastases in mice. Using this system for targeted delivery of the chemotherapeutic docetaxel, we showed that bone tumor burden could be reduced significantly with less bone destruction and less hepatotoxicity compared with equimolar doses of free docetaxel. Furthermore, mice treated with αvβ3-MP-docetaxel exhibited a significant decrease in bone-residing tumor cell proliferation compared with free docetaxel. Taken together, our results offer preclinical proof of concept for a method to enhance delivery of chemotherapeutics to breast cancer cells within the bone by exploiting their selective expression of integrin αvβ3 at that metastatic site. Cancer Res; 77(22); 6299-312. ©2017 AACR.
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Affiliation(s)
- Michael H Ross
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Alison K Esser
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Gregory C Fox
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Anne H Schmieder
- Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Xiaoxia Yang
- Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Grace Hu
- Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Dipanjan Pan
- Department of Bioengineering, University of Illinois at Urbana-Champaign, Champaign, Illinois
| | - Xinming Su
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Yalin Xu
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Deborah V Novack
- Department of Medicine, Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, Missouri
- Department of Pathology, Washington University School of Medicine, St. Louis, Missouri
| | - Thomas Walsh
- Department of Surgery, Division of Public Health Sciences, St. Louis Breast Tissue Registry, Washington University School of Medicine, St. Louis, Missouri
| | - Graham A Colditz
- Department of Surgery, Division of Public Health Sciences, St. Louis Breast Tissue Registry, Washington University School of Medicine, St. Louis, Missouri
| | - Gabriel H Lukaszewicz
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Elizabeth Cordell
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - Joshua Novack
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri
| | - James A J Fitzpatrick
- Departments of Cell Biology & Physiology and Neuroscience, Washington University Center for Cellular Imaging, Washington University School of Medicine, St. Louis, Missouri
| | - David L Waning
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Khalid S Mohammad
- Department of Medicine, Division of Endocrinology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Theresa A Guise
- Department of Medicine, Division of Endocrinology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Gregory M Lanza
- Department of Medicine, Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Katherine N Weilbaecher
- Department of Medicine, Division of Molecular Oncology, Washington University School of Medicine, St. Louis, Missouri.
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50
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Vasylyev D, Chernobay L, Vasylieva O, Oliinyk M, Vashuk M. CLINICAL AND GENETIC PECULIARITIES OF VASCULAR MANIFESTATIONS OF ANTIPHOSPHOLIPID SYNDROME (CASE REPORT). Georgian Med News 2017:114-119. [PMID: 28726667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Pathogenetic mechanisms of the development of antiphospholipid syndrome (APS) are considered in the article, which is the basis for the development of clinical manifestations and laboratory markers of APS. The modern literature data are analyzed, according to which the presence of antiphospholipid antibodies is a hypercoagulable background, and the formation of thrombi occurs under the influence of other allowing procoagulation factors. The classification of the main types of hereditary thrombophilia is given, which is the primary disorder, against the background of which an autoimmune thrombosis APS develops. A clinical observation of a young age patient is given, whose heterozygous carriage of mutations in the genes responsible for blood coagulation (F7, PAI-1 and ITGB3-β-integrin), as well as homozygous carriage of a mutation in the MTRR gene associated with a violation of homocysteine methylation, APS was developed, which led to the processes of thrombosis. Timely diagnosis and individually developed pathogenetic therapy allow avoiding life-threatening complications of APS and improving the patients' quality of life. A conclusion about the need for APS and hereditary thrombophilias' examination to all patients of young age with unprovoked thrombosis of deep veins of lower extremities and PE was made.
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Affiliation(s)
- D Vasylyev
- 1Kharkiv Medical Academy of Postgraduate Study; 2Kharkiv National Medical University, Ukraine
| | - L Chernobay
- 1Kharkiv Medical Academy of Postgraduate Study; 2Kharkiv National Medical University, Ukraine
| | - O Vasylieva
- 1Kharkiv Medical Academy of Postgraduate Study; 2Kharkiv National Medical University, Ukraine
| | - M Oliinyk
- 1Kharkiv Medical Academy of Postgraduate Study; 2Kharkiv National Medical University, Ukraine
| | - M Vashuk
- 1Kharkiv Medical Academy of Postgraduate Study; 2Kharkiv National Medical University, Ukraine
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