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Kurt I, Kulhan M, AlAshqar A, Borahay MA. Uterine Collagen Cross-Linking: Biology, Role in Disorders, and Therapeutic Implications. Reprod Sci 2024; 31:645-660. [PMID: 37907804 DOI: 10.1007/s43032-023-01386-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 10/13/2023] [Indexed: 11/02/2023]
Abstract
Collagen is an essential constituent of the uterine extracellular matrix that provides biomechanical strength, resilience, structural integrity, and the tensile properties necessary for the normal functioning of the uterus. Cross-linking is a fundamental step in collagen biosynthesis and is critical for its normal biophysical properties. This step occurs enzymatically via lysyl oxidase (LOX) or non-enzymatically with the production of advanced glycation end-products (AGEs). Cross-links found in uterine tissue include the reducible dehydro-dihydroxylysinonorleucine (deH-DHLNL), dehydro-hydroxylysinonorleucine (deH-HLNL), and histidinohydroxymerodesmosine (HHMD); and the non-reducible pyridinoline (PYD), deoxy-pyridinoline (DPD); and a trace of pentosidine (PEN). Collagen cross-links are instrumental for uterine tissue integrity and the continuation of a healthy pregnancy. Decreased cervical cross-link density is observed in preterm birth, whereas increased tissue stiffness caused by increased cross-link density is a pathogenic feature of uterine fibroids. AGEs disrupt embryo development, decidualization, implantation, and trophoblast invasion. Uterine collagen cross-linking regulators include steroid hormones, such as progesterone and estrogen, prostaglandins, proteoglycans, metalloproteinases, lysyl oxidases, nitric oxide, nicotine, and vitamin D. Thus, uterine collagen cross-linking presents an opportunity to design therapeutic targets and warrants further investigation in common uterine disorders, such as uterine fibroids, cervical insufficiency, preterm birth, dystocia, endometriosis, and adenomyosis.
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Affiliation(s)
- Irem Kurt
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
- Selcuk University Faculty of Medicine, 42000, Konya, Turkey
| | - Mehmet Kulhan
- Department of Gynecology and Obstetrics, Selcuk University Faculty of Medicine, 42000, Konya, Turkey
| | - Abdelrahman AlAshqar
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Mostafa A Borahay
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA.
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Greene AG, Eivers SB, Dervan EWJ, O'Brien CJ, Wallace DM. Lysyl Oxidase Like 1: Biological roles and regulation. Exp Eye Res 2020; 193:107975. [PMID: 32070696 DOI: 10.1016/j.exer.2020.107975] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/12/2020] [Accepted: 02/13/2020] [Indexed: 12/11/2022]
Abstract
Lysyl Oxidase Like 1 (LOXL1) is a gene that encodes for the LOXL1 enzyme. This enzyme is required for elastin biogenesis and collagen cross-linking, polymerising tropoelastin monomers into elastin polymers. Its main role is in elastin homeostasis and matrix remodelling during injury, fibrosis and cancer development. Because of its vast range of biological functions, abnormalities in LOXL1 underlie many disease processes. Decreased LOXL1 expression is observed in disorders of elastin such as Cutis Laxa and increased expression is reported in fibrotic disease such as Idiopathic Pulmonary Fibrosis. LOXL1 is also downregulated in the lamina cribrosa in pseudoexfoliation glaucoma and genetic variants in the LOXL1 gene have been linked with an increased risk of developing pseudoexfoliation glaucoma and pseudoexfoliation syndrome. However the two major risk alleles are reversed in certain ethnic groups and are present in a large proportion of the normal population, implying complex genetic and environmental regulation is involved in disease pathogenesis. It also appears that the non-coding variants in intron 1 of LOXL1 may be involved in the regulation of LOXL1 expression. Gene alteration may occur via a number of epigenetic and post translational mechanisms such as DNA methylation, long non-coding RNAs and microRNAs. These may represent future therapeutic targets for disease. Environmental factors such as hypoxia, oxidative stress and ultraviolet radiation exposure alter LOXL1 expression, and it is likely a combination of these genetic and environmental factors that influence disease development and progression. In this review, we discuss LOXL1 properties, biological roles and regulation in detail with a focus on pseudoexfoliation syndrome and glaucoma.
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Affiliation(s)
- Alison G Greene
- UCD Clinical Research Centre, School of Medicine, University College Dublin, Ireland.
| | - Sarah B Eivers
- UCD Clinical Research Centre, School of Medicine, University College Dublin, Ireland
| | - Edward W J Dervan
- Dept. of Ophthalmology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - Colm J O'Brien
- UCD Clinical Research Centre, School of Medicine, University College Dublin, Ireland; Dept. of Ophthalmology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - Deborah M Wallace
- UCD Clinical Research Centre, School of Medicine, University College Dublin, Ireland
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3
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Xu XH, Jia Y, Zhou X, Xie D, Huang X, Jia L, Zhou Q, Zheng Q, Zhou X, Wang K, Jin LP. Downregulation of lysyl oxidase and lysyl oxidase-like protein 2 suppressed the migration and invasion of trophoblasts by activating the TGF-β/collagen pathway in preeclampsia. Exp Mol Med 2019; 51:1-12. [PMID: 30804321 PMCID: PMC6389995 DOI: 10.1038/s12276-019-0211-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/16/2018] [Accepted: 11/15/2018] [Indexed: 12/12/2022] Open
Abstract
Preeclampsia is a pregnancy-specific disorder that is a major cause of maternal and fetal morbidity and mortality with a prevalence of 6–8% of pregnancies. Although impaired trophoblast invasion in early pregnancy is known to be closely associated with preeclampsia, the underlying mechanisms remain elusive. Here we revealed that lysyl oxidase (LOX) and LOX-like protein 2 (LOXL2) play a critical role in preeclampsia. Our results demonstrated that LOX and LOXL2 expression decreased in preeclamptic placentas. Moreover, knockdown of LOX or LOXL2 suppressed trophoblast cell migration and invasion. Mechanistically, collagen production was induced in LOX- or LOXL2-downregulated trophoblast cells through activation of the TGF-β1/Smad3 pathway. Notably, inhibition of the TGF-β1/Smad3 pathway could rescue the defects caused by LOX or LOXL2 knockdown, thereby underlining the significance of the TGF-β1/Smad3 pathway downstream of LOX and LOXL2 in trophoblast cells. Additionally, induced collagen production and activated TGF-β1/Smad3 were observed in clinical samples from preeclamptic placentas. Collectively, our study suggests that the downregulation of LOX and LOXL2 leading to reduced trophoblast cell migration and invasion through activation of the TGF-β1/Smad3/collagen pathway is relevant to preeclampsia. Thus, we proposed that LOX, LOXL2, and the TGF-β1/Smad3/collagen pathway can serve as potential markers and targets for clinical diagnosis and therapy for preeclampsia. Cancer-associated proteins play a role in preeclampsia, a potentially life-threatening disorder of pregnancy marked by high blood pressure and protein in the urine. The causes of preeclampsia are poorly understood, but the tissue that nourishes the fetus, the placenta, is known to be involved. Knowing that for healthy placenta formation, cells called trophoblasts must show cancer cell-like behavior and invade the developing tissue, Li-Ping Jin and Kai Wang at Tongji University School of Medicine in Shanghai, China, and co-workers investigated the role of cancer-associated LOX proteins, previously linked to cell invasiveness. Preeclamptic placentas showed low LOX levels, poor trophoblast invasion, and excessive formation of collagen, an important connective tissue. Further analysis showed that this excessive collagen is broken down, becoming the diagnostic urinary protein. These results illuminate potential markers for early diagnosis and treatment of preeclampsia.
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Affiliation(s)
- Xiang-Hong Xu
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Yuanhui Jia
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Xinyao Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Dandan Xie
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Xiaojie Huang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Linyan Jia
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Qian Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Qingliang Zheng
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Xiangyu Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China
| | - Kai Wang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China.
| | - Li-Ping Jin
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, 2699 West Gaoke Road, Shanghai, 201204, P. R. China.
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Pasutto F, Zenkel M, Hoja U, Berner D, Uebe S, Ferrazzi F, Schödel J, Liravi P, Ozaki M, Paoli D, Frezzotti P, Mizoguchi T, Nakano S, Kubota T, Manabe S, Salvi E, Manunta P, Cusi D, Gieger C, Wichmann HE, Aung T, Khor CC, Kruse FE, Reis A, Schlötzer-Schrehardt U. Pseudoexfoliation syndrome-associated genetic variants affect transcription factor binding and alternative splicing of LOXL1. Nat Commun 2017; 8:15466. [PMID: 28534485 PMCID: PMC5457519 DOI: 10.1038/ncomms15466] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 03/27/2017] [Indexed: 02/08/2023] Open
Abstract
Although lysyl oxidase-like 1 (LOXL1) is known as the principal genetic risk factor for pseudoexfoliation (PEX) syndrome, a major cause of glaucoma and cardiovascular complications, no functional variants have been identified to date. Here, we conduct a genome-wide association scan on 771 German PEX patients and 1,350 controls, followed by independent testing of associated variants in Italian and Japanese data sets. We focus on a 3.5-kb four-component polymorphic locus positioned spanning introns 1 and 2 of LOXL1 with enhancer-like chromatin features. We find that the rs11638944:C>G transversion exerts a cis-acting effect on the expression levels of LOXL1, mediated by differential binding of the transcription factor RXRα (retinoid X receptor alpha) and by modulating alternative splicing of LOXL1, eventually leading to reduced levels of LOXL1 mRNA in cells and tissues of risk allele carriers. These findings uncover a functional mechanism by which common noncoding variants influence LOXL1 expression. LOXL1 is a genetic risk factor for pseudoexfoliation syndrome of the eye but a causal variant has not been identified. Here, Pasutto et al., find intronic LOXL1 risk variants influence transcription factor binding and alternative splicing of LOXL1 in affected tissues reducing levels of LOXL1 mRNA.
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Affiliation(s)
- Francesca Pasutto
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 10, 91054 Erlangen, Germany
| | - Matthias Zenkel
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Ursula Hoja
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Daniel Berner
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Steffen Uebe
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 10, 91054 Erlangen, Germany
| | - Fulvia Ferrazzi
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 10, 91054 Erlangen, Germany
| | - Johannes Schödel
- Department of Nephrology and Hypertension, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Ulmenweg 18, 91054 Erlangen, Germany
| | - Panah Liravi
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - Mineo Ozaki
- Ozaki Eye Hospital, 1-15 Kamezaki, Hyuga, Miyazaki 883-0066, Japan
| | - Daniela Paoli
- Ospedale Monfalcone, Centro Glaucomi, Via Galvani 1, 34074 Monfalcone, Italy
| | - Paolo Frezzotti
- Ophthalmology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Viale Bracci SNC, 53100 Siena, Italy
| | - Takanori Mizoguchi
- Mizoguchi Eye Clinic, 6-13 Tawara-machi, Sasebo, Nagasaki 857-0016, Japan
| | - Satoko Nakano
- Department of Ophthalmology, Oita University, Faculty of Medicine, 1-1 Idaigaoka, Hasana-machi, Oita 879-5593, Japan
| | - Toshiaki Kubota
- Department of Ophthalmology, Oita University, Faculty of Medicine, 1-1 Idaigaoka, Hasana-machi, Oita 879-5593, Japan
| | - Shinichi Manabe
- Hayashi Eye Hospital, 4-23-35 Hakataekimae, Hakata-ku, Fukuoka 812-0011, Japan
| | - Erika Salvi
- Department of Health Sciences, University of Milano, Via Ortles 22/4, 20139 Milano, Italy
| | - Paolo Manunta
- Department of Nephrology, University Vita-Salute San Raffaele, Via Olgettina 58, 20132 Milano, Italy
| | - Daniele Cusi
- Institute of Biomedical Technologies, National Research Centre (ITB-CNR), Via Fratelli Cervi 93, 20090 Segrate-Milano, Italy
| | - Christian Gieger
- Institute of Epidemiology, Helmholtz Center Munich, Ingolstädter Landstr. 1, 85764 Munich, Germany
| | - Heinz-Erich Wichmann
- Institute of Epidemiology, Helmholtz Center Munich, Ingolstädter Landstr. 1, 85764 Munich, Germany
| | - Tin Aung
- Singapore Eye Research Institute, Singapore National Eye Center, 11 Third Hospital Avenue, Singapore 168751, Singapore
| | | | - Friedrich E Kruse
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
| | - André Reis
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 10, 91054 Erlangen, Germany
| | - Ursula Schlötzer-Schrehardt
- Department of Ophthalmology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Schwabachanlage 6, 91054 Erlangen, Germany
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Aboobakar IF, Johnson WM, Stamer WD, Hauser MA, Allingham RR. Major review: Exfoliation syndrome; advances in disease genetics, molecular biology, and epidemiology. Exp Eye Res 2016; 154:88-103. [PMID: 27845061 DOI: 10.1016/j.exer.2016.11.011] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/06/2016] [Accepted: 11/10/2016] [Indexed: 12/20/2022]
Abstract
Exfoliation syndrome (XFS) is a common age-related disorder that leads to deposition of extracellular fibrillar material throughout the body. The most recognized disease manifestation is exfoliation glaucoma (XFG), which is a common cause of blindness worldwide. Recent developments in XFS genetics, cell biology and epidemiology have greatly improved our understanding of the etiology of this complex inherited disease. This review summarizes current knowledge of XFS pathogenesis, identifies gaps in knowledge, and discusses areas for future research.
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Affiliation(s)
- Inas F Aboobakar
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - William M Johnson
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - W Daniel Stamer
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - Michael A Hauser
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA
| | - R Rand Allingham
- Department of Ophthalmology, Duke University Medical Center, Durham, NC, USA.
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6
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Goteri G, Altobelli E, Tossetta G, Zizzi A, Avellini C, Licini C, Lorenzi T, Castellucci M, Ciavattini A, Marzioni D. High temperature requirement A1, transforming growth factor beta1, phosphoSmad2 and Ki67 in eutopic and ectopic endometrium of women with endometriosis. Eur J Histochem 2015; 59:2570. [PMID: 26708185 PMCID: PMC4698617 DOI: 10.4081/ejh.2015.2570] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/12/2015] [Accepted: 11/17/2015] [Indexed: 12/20/2022] Open
Abstract
Increasing evidence supports the hypothesis that TGFb1 signalling may be mediated by high temperature requirement A1 (HtrA1) serine protease, acting on important regulatory mechanisms such as cell proliferation and mobility. Evidence is now accumulating to suggest that HtrA1 is involved in the development and progression of several pathologies. The aim of this study was to evaluate: i) if HtrA1 and TGFb1 expressions differ in eutopic and ectopic endometrium in women with endometriosis; ii) if HtrA1 correlates to TGFb1, pSmad and Ki67. This study was carried out including 10 women with ovarian endometriosis (cases) and 10 women with non endometriotic diseases (controls). Endometrial tissue underwent immunohistochemical H-score analysis for HtrA1, TGFb1, pSmad and Ki67 molecules. Data evaluation was performed by a nonparametric Kruskal-Wallis test and Spearman correlation was applied to evaluate the relationship among the molecules investigated in the epithelial and in the stromal compartment. The HtrA1 was significant decreased in ectopic and eutopic endometrium of women with endometriosis when compared with control endometrium in epithelial compartment. TGFb1was significantly increased in eutopic endometrium and decreased in ectopic endometrium in epithelial and stromal compartment. In addition, Ki67 was significant increased and an increase, but not significant, was detected for pSMAd2 in eutopic and ectopic endometrium compared to control one. In summary, the significant direct correlation between TGFb1 and pSmad2 as well as between HtrA1 and TGFb1 and the very significant increase of Ki67 in stromal compartment of eutopic endometrium suggest a possible involvement of HtrA1 in the pathogenesis of endometriosis.
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Affiliation(s)
- G Goteri
- Università Politecnica delle Marche.
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7
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Ruiz LA, Báez-Vega PM, Ruiz A, Peterse DP, Monteiro JB, Bracero N, Beauchamp P, Fazleabas AT, Flores I. Dysregulation of Lysyl Oxidase Expression in Lesions and Endometrium of Women With Endometriosis. Reprod Sci 2015; 22:1496-508. [PMID: 25963914 PMCID: PMC5933196 DOI: 10.1177/1933719115585144] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
UNLABELLED Lysyl oxidases (LOXs) are enzymes involved in collagen deposition, extracellular membrane remodeling, and invasive/metastatic potential. Previous studies reveal an association of LOXs and endometriosis. We aimed to identify the mechanisms activated by upregulation of lysyl oxidases (LOX) in endometriotic cells and tissues. We hypothesized that LOX plays a role in endometriosis by promoting invasiveness and epithelial to mesenchymal transition (EMT). METHODS The LOX protein expression levels were measured by immunohistochemistry in lesions and endometrium on a tissue microarray (TMA) and in endometrial biopsies from patients and controls during the window of implantation (WOI). Estradiol regulation of LOX expression was determined by quantitative polymerase chain reaction (qPCR). Proliferation, invasion, and migration assays were performed in epithelial (endometrial epithelial cell), endometrial (human endometrial stromal cell), and endometriotic cell lines (ECL and 12Z). Pathway-focused multiplex qPCR was used to determine transcriptome changes due to LOX overexpression. RESULTS LOX protein was differentially expressed in ovarian versus peritoneal lesions. During WOI, LOX levels were higher in luminal epithelium of patients with endometriosis-associated infertility compared to controls. Invasive epithelial cell lines expressed higher levels of LOX than noninvasive ones. Transfection of LOX into noninvasive epithelial cells increased their migration in an LOX inhibitor-sensitive manner. Overexpression of LOX did not fully induce EMT but the expression of genes related to fibrosis and extracellular matrix remodeling were dysregulated. CONCLUSIONS This study documents that expression of LOX is differentially regulated in endometriotic lesions and endometrium. A role for LOX in mediating proliferation, migration, and invasion of endometrial and endometriotic cells was observed, which may be implicated in the establishment and progression of endometriotic lesions.
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Affiliation(s)
- Lynnette A Ruiz
- Department of Anatomy, Ponce Health Sciences University-School of Medicine & Ponce Research Institute, Ponce, PR, USA
| | - Perla M Báez-Vega
- Comprehensive Cancer Center, Medical Sciences Campus, University of Puerto Rico, San Juan, PR, USA
| | - Abigail Ruiz
- Department of Microbiology, Ponce Health Sciences University-School of Medicine & Ponce Research Institute, Ponce, PR, USA
| | - Daniëlle P Peterse
- Department of Development and Regeneration, University Hospital Leuven, Leuven, Belgium
| | - Janice B Monteiro
- Department of Biochemistry, Ponce Health Sciences University- School of Medicine & Ponce Research Institute, Ponce, PR, USA
| | - Nabal Bracero
- Department of Ob-Gyn, University of Puerto Rico - Medical Sciences Campus, Genes Fertility Institute, San Juan, PR, USA
| | | | - Asgerally T Fazleabas
- Department of Ob-Gyn & Reproductive Biology, Michigan State University, Grand Rapids, MI, USA
| | - Idhaliz Flores
- Department of Microbiology, Department of Ob-Gyn, Ponce Health Sciences University-School of Medicine & Ponce Research Institute, Ponce, PR, USA
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Abstract
OBJECTIVES The LOXL1 (lysyl oxidase-like 1) gene encodes a copper-dependent monoamine oxidase that catalyzes the deamination of a lysine residue in the cross-linking of tropoelastin monomers to form elastin. LOXL1-KO mice do not deposit normal elastic fibers in their genitourinary tract resulting in postpartum pelvic organ prolapse and lower urinary tract dysfunction with decreased bladder capacity and lower voiding pressure. We sought to identify which single nucleotide polymorphisms in the LOXL1 coding sequence play a role in female pelvic organ prolapse. METHODS A total of 66 patients were screened, 48 in the case group and 18 in the control group. The 7 exons of LOXL1 were evaluated for any polymorphisms. RESULTS Three missense sequence changes (Arg141Leu, Gly153Asp, and Ser159Ala) and 3 silent mutations (Asp292Asp, Ala320Ala, and Ile521Ile) were identified. None of these polymorphisms were found to differ significantly in frequency in the case group compared with the control group. CONCLUSIONS Our findings do not support an association of any LOXL1 exonal single nucleotide polymorphisms with the diagnosis of female pelvic organ prolapse.
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9
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Meola J, Dentillo DB, Rosa e Silva JC, Hidalgo GDS, Paz CCPD, Ferriani RA. RHOC: a key gene for endometriosis. Reprod Sci 2013; 20:998-1002. [PMID: 23302395 DOI: 10.1177/1933719112472743] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Considerable efforts have been invested in elucidating the potential mechanisms involved in the physiopathology of endometriosis. The aims of our study were to investigate whether RHOC expression is differentially altered in the endometrium and in endometriotic lesions. A total of 40 patients diagnosed with endometriosis and 15 healthy fertile women were selected for the study. Paired biopsies of endometrial tissue (eutopic endometrium) and endometriotic lesions (ectopic endometrium) were obtained from the patients with endometriosis. Endometrium from women without endometriosis was used as a control. Expression of the RHOC gene was analyzed by real-time polymerase chain reaction in autologous endometrial tissues of women with endometriosis and in the endometrium of control women. Increased RHOC expression was detected in endometriotic lesions compared to the eutopic endometrium of women with endometriosis and control women. RHOC changes may be among the key elements involved in the origin and the maintenance of endometriosis.
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Affiliation(s)
- Juliana Meola
- Department of Gynecology and Obstetrics, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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10
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Abstract
The therapeutic targeting of extracellular proteins is becoming hugely attractive in light of evidence implicating the tumour microenvironment as pivotal in all aspects of tumour initiation and progression. Members of the lysyl oxidase (LOX) family of proteins are secreted by tumours and are the subject of much effort to understand their roles in cancer. In this Review we discuss the roles of members of this family in the remodelling of the tumour microenvironment and their paradoxical roles in tumorigenesis and metastasis. We also discuss how targeting this family of proteins might lead to a new avenue of cancer therapeutics.
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Affiliation(s)
- Holly E Barker
- Hypoxia & Metastasis Team, The Institute of Cancer Research, London SW3 6JB, UK
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11
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Tennstaedt A, Pöpsel S, Truebestein L, Hauske P, Brockmann A, Schmidt N, Irle I, Sacca B, Niemeyer CM, Brandt R, Ksiezak-Reding H, Tirniceriu AL, Egensperger R, Baldi A, Dehmelt L, Kaiser M, Huber R, Clausen T, Ehrmann M. Human high temperature requirement serine protease A1 (HTRA1) degrades tau protein aggregates. J Biol Chem 2012; 287:20931-41. [PMID: 22535953 PMCID: PMC3375517 DOI: 10.1074/jbc.m111.316232] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 04/24/2012] [Indexed: 11/06/2022] Open
Abstract
Protective proteases are key elements of protein quality control pathways that are up-regulated, for example, under various protein folding stresses. These proteases are employed to prevent the accumulation and aggregation of misfolded proteins that can impose severe damage to cells. The high temperature requirement A (HtrA) family of serine proteases has evolved to perform important aspects of ATP-independent protein quality control. So far, however, no HtrA protease is known that degrades protein aggregates. We show here that human HTRA1 degrades aggregated and fibrillar tau, a protein that is critically involved in various neurological disorders. Neuronal cells and patient brains accumulate less tau, neurofibrillary tangles, and neuritic plaques, respectively, when HTRA1 is expressed at elevated levels. Furthermore, HTRA1 mRNA and HTRA1 activity are up-regulated in response to elevated tau concentrations. These data suggest that HTRA1 is performing regulated proteolysis during protein quality control, the implications of which are discussed.
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Affiliation(s)
- Annette Tennstaedt
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Simon Pöpsel
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Linda Truebestein
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Patrick Hauske
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Anke Brockmann
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Nina Schmidt
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Inga Irle
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Barbara Sacca
- the Fakultät Chemie, Biologisch-Chemische Mikrostrukturtechnik, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Christof M. Niemeyer
- the Fakultät Chemie, Biologisch-Chemische Mikrostrukturtechnik, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
| | - Roland Brandt
- the Fachbereich Biologie/Chemie, University Osnabrueck, D-49076 Osnabrueck, Germany
| | - Hanna Ksiezak-Reding
- the Department of Neurology, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, New York 10029
| | - Anca Laura Tirniceriu
- the Center for Neuropathology and Prion Research, Ludwig Maximilians University of Munich, Feodor-Lynen-Strasse 23, 81377 Munich, Germany
| | - Rupert Egensperger
- the Center for Neuropathology and Prion Research, Ludwig Maximilians University of Munich, Feodor-Lynen-Strasse 23, 81377 Munich, Germany
| | - Alfonso Baldi
- the Department of Biochemistry and Biophysics, Section of Pathology, the Second University of Naples, 80100 Naples, Italy
| | - Leif Dehmelt
- the Max-Planck-Institute of Molecular Physiology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany
| | - Markus Kaiser
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
| | - Robert Huber
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
- the Department for Chemical Biology, Technische Universität Dortmund University, Otto-Hahn-Strasse 6, 44227 Dortmund, Germany
- the Max-Planck-Institut für Biochemie, Am Klopferspitz 18A, 82152 Martinsried, Germany
- the School of Biosciences, Cardiff University, Cardiff CF10 3US, United Kingdom, and
| | - Tim Clausen
- the Research Institute of Molecular Pathology, Dr. Bohr-Gasse 7, A-1030 Vienna, Austria
| | - Michael Ehrmann
- From the Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Universitaetsstrasse, 45141 Essen, Germany
- the School of Biosciences, Cardiff University, Cardiff CF10 3US, United Kingdom, and
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So KH, Lee CL, Yeung WS, Lee KF. Glycodelin suppresses endometrial cell migration and invasion but stimulates spheroid attachment. Reprod Biomed Online 2012; 24:639-45. [DOI: 10.1016/j.rbmo.2012.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 03/02/2012] [Accepted: 03/07/2012] [Indexed: 10/28/2022]
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13
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Dos Santos Hidalgo G, Meola J, Rosa E Silva JC, Paro de Paz CC, Ferriani RA. TAGLN expression is deregulated in endometriosis and may be involved in cell invasion, migration, and differentiation. Fertil Steril 2011; 96:700-3. [PMID: 21763649 DOI: 10.1016/j.fertnstert.2011.06.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Revised: 06/02/2011] [Accepted: 06/17/2011] [Indexed: 12/24/2022]
Abstract
We found an increased expression of the TAGLN gene in endometriotic lesions compared with the eutopic endometrium of the same patients by real-time polymerase chain reaction. It is possible that this deregulation contributes to the development and maintenance of endometriosis by being involved in the pathways of organization of cytoskeletal architecture.
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Affiliation(s)
- Gabriela Dos Santos Hidalgo
- Department of Gynecology and Obstetrics, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Brazil.
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