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Shen L, Zhang C, Zhu G. Low-density lipoprotein receptor-related protein 5/6 promotes endometrial cancer progression and cancer cell immune escape. J Biochem Mol Toxicol 2024; 38:e23677. [PMID: 38528715 DOI: 10.1002/jbt.23677] [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: 03/01/2023] [Revised: 01/02/2024] [Accepted: 02/23/2024] [Indexed: 03/27/2024]
Abstract
The study investigated the potential association of the low-density lipoprotein (LDL) genome with endometrial cancer progression based on the Gene Expression Omnibus data set and The Cancer Genome Atlas data set. Differential and weighted gene coexpression network analysis was performed on endometrial cancer transcriptome datasets GSE9750 and GSE106191. The protein-protein interaction network was built using LDL-receptor proteins and the top 50 tumor-associated genes. Low-density lipoprotein-related receptors 5/6 (LRP5/6) in endometrial cancer tissues were correlated with oncogenes, cell cycle-related genes, and immunological checkpoints using Spearman correlation. MethPrimer predicted the LRP5/6 promoter CpG island. LRP2, LRP6, LRP8, LRP12, low-density lipoprotein receptor-related protein-associated protein, and LRP5 were major LDL-receptor-related genes associated with endometrial cancer. LRP5/6 was enriched in various cancer-related pathways and may be a key LDL-receptor-related gene in cancer progression. LRP5/6 may be involved in the proliferation process of endometrial cancer cells by promoting the expression of cell cycle-related genes. LRP5/6 may be involved in the proliferation of endometrial cancer cells by promoting the expression of cell cycle-related genes. LRP5/6 may promote the immune escape of cancer cells by promoting the expression of immune checkpoints, promoting endometrial cancer progression. The MethPrimer database predicted that the LRP5/6 promoter region contained many CpG islands, suggesting that DNA methylation can occur in the LRP5/6 promoter region. LRP5/6 may aggravate endometrial cancer by activating the phosphoinositide 3-kinase/protein kinase B pathway.
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Affiliation(s)
- Lifan Shen
- Department of Gynecology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan, China
| | - Chen Zhang
- Department of Central Lab, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan, China
| | - Genhai Zhu
- Department of Gynecology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, Hainan, China
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Chen Z, Zhao Q, Chen L, Gao S, Meng L, Liu Y, Wang Y, Li T, Xue J. MAGP2 promotes osteogenic differentiation during fracture healing through its crosstalk with the β-catenin pathway. J Cell Physiol 2024; 239:e31183. [PMID: 38348695 DOI: 10.1002/jcp.31183] [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: 10/12/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 04/12/2024]
Abstract
Osteogenic differentiation is important for fracture healing. Microfibrial-associated glycoprotein 2 (MAGP2) is found to function as a proangiogenic regulator in bone formation; however, its role in osteogenic differentiation during bone repair is not clear. Here, a mouse model of critical-sized femur fracture was constructed, and the adenovirus expressing MAGP2 was delivered into the fracture site. Mice with MAGP2 overexpression exhibited increased bone mineral density and bone volume fraction (BV/TV) at Day 14 postfracture. Within 7 days postfracture, overexpression of MAGP2 increased collagen I and II expression at the fracture callus, with increasing chondrogenesis. MAGP2 inhibited collagen II level but elevated collagen I by 14 days following fracture, accompanied by increased endochondral bone formation. In mouse osteoblast precursor MC3T3-E1 cells, MAGP2 treatment elevated the expression of osteoblastic factors (osterix, BGLAP and collagen I) and enhanced ALP activity and mineralization through activating β-catenin signaling after osteogenic induction. Besides, MAGP2 could interact with lipoprotein receptor-related protein 5 (LRP5) and upregulated its expression. Promotion of osteogenic differentiation and β-catenin activation mediated by MAGP2 was partially reversed by LRP5 knockdown. Interestingly, β-catenin/transcription factor 4 (TCF4) increased MAGP2 expression probably by binding to MAGP2 promoter. These findings suggest that MAGP2 may interact with β-catenin/TCF4 to enhance β-catenin/TCF4's function and activate LRP5-activated β-catenin signaling pathway, thus promoting osteogenic differentiation for fracture repair. mRNA sequencing identified the potential targets of MAGP2, providing novel insights into MAGP2 function and the directions for future research.
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Affiliation(s)
- Zhiguang Chen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Qi Zhao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Lianghong Chen
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Songlan Gao
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Lingshuai Meng
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yingjie Liu
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yu Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tiegang Li
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jinqi Xue
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
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Li J, Li Y, Li S, Lu Y, Rai P. Relationship between polymorphisms and mutations at rs7125942 and rs3736228 of LRP5 gene and bone metabolism in postmenopausal women. J Orthop Surg Res 2024; 19:104. [PMID: 38302983 PMCID: PMC10832214 DOI: 10.1186/s13018-024-04579-1] [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: 11/21/2023] [Accepted: 01/25/2024] [Indexed: 02/03/2024] Open
Abstract
OBJECTIVE To analyze the relationship between the polymorphism and mutation of rs7125942 and rs3736228 locus in the low-density lipoprotein receptor-related protein 5 (LRP5) genotype and bone mineral density (BMD) in postmenopausal women in Xinjiang, China, to provide a basis for prevention and treatment of the disease. METHODS According to the results of dual-energy X-ray (DEXA) determination of BMD, the 136 subjects were divided into three groups: Group A: normal bone mass, Group B: osteopenia, Group C: osteoporosis. 1. Age, body, mass index (BMI), and menopause of all subjects were recorded. 2. Fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c), calcium (Ca), phosphorus (P), alkaline phosphatase (ALP), and clinical biochemical data were determined. 3. LRP5 locus polymorphisms were determined by time-of-flight mass spectrometry. RESULTS 1. Compared with group A, the age, ALP, Cr, and BUN levels in group B and group C were increased, but UA levels were lower (P < 0.05), and Serum P was higher in the group C (P < 0.05). 2. There was no statistically significant difference in the prevalence of diabetes between the three groups (P > 0.05). 3. The ROC curves for different BMD sites such as L1, L2, L3, L4, L total, and femoral neck were 0.929, 0.955, 0.901, 0.914, 0.885, and 0.873 (P < 0.01). 4. At rs7125942 locus, there was statistically significant difference in the distribution of wild-type (CC) and mutant (CG) with the normal bone mass (NBM) group and the abnormal bone mass (ABM) group (P < 0.05). 5. At rs7125942 locus, compared with wild-type (CC), mutant (CG) had lower LDL and FPG in NBM group (P < 0.05), and lower serum ALP in the ABM group (P < 0.05). At rs3736228 locus, the BMD (Femoral neck) of mutant (CT/TT) was lower than that of wild-type (CC) in the NBM group (P < 0.05). 6. Age and menopausal years were negatively correlated with BMD of the femoral neck and L1-4 (P < 0.05), and BMI and TG were positively (P < 0.05), and the results of multiple linear regression analysis showed that age, BMI, and TG were both independent factors affecting BMD (P < 0.05).
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Affiliation(s)
- Jun Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Shihezi University, Shihezi, 832002, Xinjiang, China.
| | - Ya Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Shihezi University, Shihezi, 832002, Xinjiang, China
| | - Siyuan Li
- Medical School of Shihezi University, Shihezi, 832002, China
| | - Yunqiu Lu
- Medical School of Shihezi University, Shihezi, 832002, China
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Gan S, Qu F, Zhang X, Pan X, Xu D, Cui X, Hou J. LRP5 competes for SPOP binding to enhance tumorigenesis mediated by Daxx and PD-L1 in prostate cancer. Exp Cell Res 2024; 434:113857. [PMID: 38008278 DOI: 10.1016/j.yexcr.2023.113857] [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: 08/28/2023] [Revised: 11/11/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Genetic factors coordinate with environmental factors to drive the pathogenesis of prostate adenocarcinoma (PRAD). SPOP is one of the most mutated genes and LRP5 mediates lipid metabolism that is abnormally altered in PRAD. Here, we investigated the potential cross-talk between SPOP and LRP5 in PRAD. We find a negative correlation between SPOP and LRP5 proteins in PRAD. SPOP knockdown increased LRP5 protein while SPOP overexpression resulted in LRP5 reduction that was fully rescued by proteasome inhibitors. LRP5 intracellular tail has SPOP binding site and the direct interaction between LRP5 and SPOP was confirmed by Co-IP and GST-pulldown. Moreover, LRP5 competed with Daxx for SPOP-mediated degradation, establishing a dynamic balance among SPOP, LRP5 and Daxx. Overexpression of LRP5 tail could shift this balance to enhance Daxx-mediated transcriptional inhibition, and inhibit T cell activity in a co-culture system. Further, we generated human and mouse prostate cancer cell lines expressing SPOP variants (F133V, A227V, R368H). SPOP-F133V and SPOP-A227V have specific effects in up-regulating the protein levels of PD-1 and PD-L1. Consistently, SPOP-F133V and SPOP-A227V show robust inhibitory effects on T cells compared to WT SPOP in co-culture. This is further supported by the mouse syngeneic model showing that SPOP-F133V and SPOP-A227V enhance tumorigenesis of prostate cancer in in-vivo condition. Taken together, our study provides evidence that SPOP-LRP5 crosstalk plays an essential role, and the genetic variants of SPOP differentially modulate the expression and activity of immune checkpoints in prostate cancer.
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Affiliation(s)
- Sishun Gan
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China; Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Fajun Qu
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Xiangmin Zhang
- Department of Urology, Shanghai Baoshan Luodian Hospital, Baoshan District, Shanghai, 201908, PR China
| | - Xiuwu Pan
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China
| | - Da Xu
- Department of Urology, The Third Affiliated Hospital, Naval Medical University (Second Military Medical University), Shanghai, PR China
| | - Xingang Cui
- Department of Urology, Xinhua Hospital, Shanghai Jiaotong University, School of Medicine, No.1665 Kongjiang Road, Shanghai, 200092, PR China.
| | - Jianquan Hou
- Suzhou Dushu Lake Hospital (Dushu Lake Hospital Affiliated to Soochow University), Medical Center of Soochow University, PR China.
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Li J, Wang C, Zhang S, Cai B, Pan B, Sun C, Qi X, Ma C, Fang W, Jin K, Bi X, Jin Z, Zhuang W. Genetic detection of two novel LRP5 pathogenic variants in patients with familial exudative vitreoretinopathy. BMC Ophthalmol 2023; 23:489. [PMID: 38030997 PMCID: PMC10685552 DOI: 10.1186/s12886-023-03243-2] [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: 12/31/2022] [Accepted: 11/23/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Familial exudative vitreoretinopathy (FEVR) is a genetic eye disorder that leads to abnormal development of retinal blood vessels, resulting in vision impairment. This study aims to identify pathogenic variants by targeted exome sequencing in 9 independent pedigrees with FEVR and characterize the novel pathogenic variants by molecular dynamics simulation. METHODS Clinical data were collected from 9 families with FEVR. The causative genes were screened by targeted next-generation sequencing (TGS) and verified by Sanger sequencing. In silico analyses (SIFT, Polyphen2, Revel, MutationTaster, and GERP + +) were carried out to evaluate the pathogenicity of the variants. Molecular dynamics was simulated to predict protein conformation and flexibility transformation alterations on pathogenesis. Furthermore, molecular docking techniques were employed to explore the interactions and binding properties between LRP5 and DKK1 proteins relevant to the disease. RESULTS A 44% overall detection rate was achieved with four variants including c.4289delC: p.Pro1431Argfs*8, c.2073G > T: p.Trp691Cys, c.1801G > A: p.Gly601Arg in LRP5 and c.633 T > A: p.Tyr211* in TSPAN12 in 4 unrelated probands. Based on in silico analysis and ACMG standard, two of them, c.4289delC: p.Pro1431Argfs*8 and c.2073G > T: p.Trp691Cys of LRP5 were identified as novel pathogenic variants. Based on computational predictions using molecular dynamics simulations and molecular docking, there are indications that these two variants might lead to alterations in the secondary structure and spatial conformation of the protein, potentially impacting its rigidity and flexibility. Furthermore, these pathogenic variants are speculated to potentially influence hydrogen bonding interactions and could result in an increased binding affinity with the DKK1 protein. CONCLUSIONS Two novel genetic variants of the LRP5 gene were identified, expanding the range of mutations associated with FEVR. Through molecular dynamics simulations and molecular docking, the potential impact of these variants on protein structure and their interactions with the DKK1 protein has been explored. These findings provide further support for the involvement of these variants in the pathogenesis of the disease.
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Affiliation(s)
- Jiayu Li
- Third Clinical Medical College of Ningxia Medical University, Shengli Street, Yinchuan, 750004, Ningxia, China
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Chanjuan Wang
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Shaochi Zhang
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Bo Cai
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Bo Pan
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Caihong Sun
- Third Clinical Medical College of Ningxia Medical University, Shengli Street, Yinchuan, 750004, Ningxia, China
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Xiaolong Qi
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Chunmei Ma
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Wei Fang
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China
| | - Kangxin Jin
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, 100005, China
| | - Xiaojun Bi
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China.
| | - Zibing Jin
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, 100005, China.
| | - Wenjuan Zhuang
- Third Clinical Medical College of Ningxia Medical University, Shengli Street, Yinchuan, 750004, Ningxia, China.
- Ningxia Eye Hospital, People's Hospital of Ningxia Hui Autonomous Region, Huanghe Road, Yinchuan, 750011, Ningxia, China.
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Littman J, Yang W, Olansen J, Phornphutkul C, Aaron RK. LRP5, Bone Mass Polymorphisms and Skeletal Disorders. Genes (Basel) 2023; 14:1846. [PMID: 37895195 PMCID: PMC10606254 DOI: 10.3390/genes14101846] [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: 05/31/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/29/2023] Open
Abstract
The formation and maintenance of the gross structure and microarchitecture of the human skeleton require the concerted functioning of a plethora of morphogenic signaling processes. Through recent discoveries in the field of genetics, numerous genotypic variants have been implicated in pathologic skeletal phenotypes and disorders arising from the disturbance of one or more of these processes. For example, total loss-of-function variants of LRP5 were found to be the cause of osteoporosis-pseudoglioma syndrome (OPPG). LRP5 encodes for the low-density lipoprotein receptor-related protein 5, a co-receptor in the canonical WNT-β-catenin signaling pathway and a crucial protein involved in the formation and maintenance of homeostasis of the human skeleton. Beyond OPPG, other partial loss-of-function variants of LRP5 have been found to be associated with other low bone mass phenotypes and disorders, while LRP5 gain-of-function variants have been implicated in high bone mass phenotypes. This review introduces the roles that LRP5 plays in skeletal morphogenesis and discusses some of the structural consequences that result from abnormalities in LRP5. A greater understanding of how the LRP5 receptor functions in bone and other body tissues could provide insights into a variety of pathologies and their potential treatments, from osteoporosis and a variety of skeletal abnormalities to congenital disorders that can lead to lifelong disabilities.
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Affiliation(s)
- Jake Littman
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
- School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Wentian Yang
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Jon Olansen
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Chanika Phornphutkul
- Division of Human Genetics, Department of Pediatrics, Hasbro Children’s Hospital, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
| | - Roy K. Aaron
- Department of Orthopedic Surgery, Warren Alpert Medical School of Brown University, Providence, RI 02903, USA
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De Mattia G, Maffi M, Mosca M, Mazzantini M. LRP5 high bone mass (Worth-type autosomal dominant endosteal hyperostosis): case report and historical review of the literature. Arch Osteoporos 2023; 18:112. [PMID: 37659026 PMCID: PMC10474981 DOI: 10.1007/s11657-023-01319-6] [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: 05/10/2023] [Accepted: 08/07/2023] [Indexed: 09/05/2023]
Abstract
PURPOSE LRP5 high bone mass (HBM) is an autosomal dominant endosteal hyperostosis caused by mutations of the low-density lipoprotein receptor-related protein 5 (LRP5) gene. Alternative names included "autosomal dominant osteosclerosis" and "Worth disease." The aim of the paper is to provide an historical overview of a disorder whose literature is complicated and confusing due to the past use of several denominations and lack of reviews. METHODS We collected case reports of HBM with evidence of autosomal dominant transmission preceding the identification of the LRP5 mutations in 2002 (Worth-type endosteal hyperostosis) and cases of LRP5 HBM confirmed by genetic analysis since 2002. The prevalence of relevant clinical and laboratory findings was estimated. We described an affected woman with neurological manifestations. RESULTS A 44-year-old Caucasian woman with torus palatinus complained of headache, hypo-/anosmia, and complete mixed deafness. Dual-energy X-ray absorptiometry (DEXA) scan revealed elevated bone mass. The A242T mutation of the LRP5 gene was detected. Including the present case, 155 patients have been reported to date. Neurological involvement and increased serum alkaline phosphatase (ALP) were present in 19.4% and 3.7% of cases, respectively. Facial changes and torus palatinus were observed in 61% and 41% of cases, respectively. CONCLUSIONS We present the only historical review on Worth-type endosteal hyperostosis, now known as LRP5 HBM. Neurological manifestations, previously considered absent in the disease, affect 19.4% of the patients. Genetic analysis and appropriate denomination of LRP5 HBM are fundamental for diagnosis and to mitigate the confusion that has long characterized this disease.
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Affiliation(s)
- Giammarco De Mattia
- Rare Bone Diseases Clinic, Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.
| | - Michele Maffi
- Rare Bone Diseases Clinic, Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Marta Mosca
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Via Roma, 67 -, 56126, Pisa, Italy
| | - Maurizio Mazzantini
- Rare Bone Diseases Clinic, Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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Diegel CR, Kramer I, Moes C, Foxa GE, McDonald MJ, Madaj ZB, Guth S, Liu J, Harris JL, Kneissel M, Williams BO. Inhibiting WNT secretion reduces high bone mass caused by Sost loss-of-function or gain-of-function mutations in Lrp5. Bone Res 2023; 11:47. [PMID: 37612291 PMCID: PMC10447437 DOI: 10.1038/s41413-023-00278-5] [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: 01/02/2023] [Revised: 05/09/2023] [Accepted: 07/03/2023] [Indexed: 08/25/2023] Open
Abstract
Proper regulation of Wnt signaling is critical for normal bone development and homeostasis. Mutations in several Wnt signaling components, which increase the activity of the pathway in the skeleton, cause high bone mass in human subjects and mouse models. Increased bone mass is often accompanied by severe headaches from increased intracranial pressure, which can lead to fatality and loss of vision or hearing due to the entrapment of cranial nerves. In addition, progressive forehead bossing and mandibular overgrowth occur in almost all subjects. Treatments that would provide symptomatic relief in these subjects are limited. Porcupine-mediated palmitoylation is necessary for Wnt secretion and binding to the frizzled receptor. Chemical inhibition of porcupine is a highly selective method of Wnt signaling inhibition. We treated three different mouse models of high bone mass caused by aberrant Wnt signaling, including homozygosity for loss-of-function in Sost, which models sclerosteosis, and two strains of mice carrying different point mutations in Lrp5 (equivalent to human G171V and A214V), at 3 months of age with porcupine inhibitors for 5-6 weeks. Treatment significantly reduced both trabecular and cortical bone mass in all three models. This demonstrates that porcupine inhibition is potentially therapeutic for symptomatic relief in subjects who suffer from these disorders and further establishes that the continued production of Wnts is necessary for sustaining high bone mass in these models.
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Affiliation(s)
- Cassandra R Diegel
- Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave., NE, Grand Rapids, MI, 49503, USA
| | - Ina Kramer
- Diseases of Aging and Regenerative Medicine, Novartis Institutes for Biomedical Research, CH-4002, Basel, Switzerland
| | - Charles Moes
- Diseases of Aging and Regenerative Medicine, Novartis Institutes for Biomedical Research, CH-4002, Basel, Switzerland
| | - Gabrielle E Foxa
- Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave., NE, Grand Rapids, MI, 49503, USA
| | - Mitchell J McDonald
- Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave., NE, Grand Rapids, MI, 49503, USA
| | - Zachary B Madaj
- Bioinformatics and Biostatistics Core, Van Andel Institute, 333 Bostwick Ave., NE, Grand Rapids, MI, 49503, USA
| | - Sabine Guth
- Diseases of Aging and Regenerative Medicine, Novartis Institutes for Biomedical Research, CH-4002, Basel, Switzerland
| | - Jun Liu
- Oncology, Novartis Institutes for Biomedical Research, San Diego, CA, 92121, USA
| | - Jennifer L Harris
- Oncology, Novartis Institutes for Biomedical Research, San Diego, CA, 92121, USA
| | - Michaela Kneissel
- Diseases of Aging and Regenerative Medicine, Novartis Institutes for Biomedical Research, CH-4002, Basel, Switzerland
| | - Bart O Williams
- Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave., NE, Grand Rapids, MI, 49503, USA.
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Heidari A, Homaei A, Saffari F. Novel Homozygous Nonsense Mutation in the LRP5 Gene in Two Siblings with Osteoporosis-pseudoglioma Syndrome. J Clin Res Pediatr Endocrinol 2023; 15:318-323. [PMID: 34965700 PMCID: PMC10448547 DOI: 10.4274/jcrpe.galenos.2021.2021.0186] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 11/25/2021] [Indexed: 12/01/2022] Open
Abstract
Osteoporosis-pseudoglioma syndrome (OPPG) is a rare autosomal recessive disorder characterized by severe osteoporosis and eye abnormalities that lead to vision loss. In this study, clinical findings and genetic study of two siblings with OPPG are presented. Whole exome sequencing of DNA enriched for exonic regions was performed with SureSelect 38Mbp all exon kit v. 7.0. The two siblings presented with different clinical manifestations of OPPG. The younger female sibling had blindness and severe osteoporosis with multiple fractures, while her older brother was also blind but with less severe osteoporosis and no fractures. On analysis, a novel homozygous nonsense mutation (c.351G>A) in exon 2 of LRP5 (NM_002335) was found, predicted to change a tryptophan at 117 to a stop codon (p. Trp117Ter). Thus, a variable phenotype was associated with an identical variant in these two siblings. The novel mutation reported herein expands the spectrum of the underlying genetic pathology of OPPG.
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Affiliation(s)
- Abolfazl Heidari
- Reference Laboratory of Qazvin Medical University, Iran Sana Medical Genetics Laboratory, Qazvin, Iran
| | - Ali Homaei
- Shahid Beheshti University of Medical Sciences, Department of General Surgery, Tehran, Iran
| | - Fatemeh Saffari
- Qazvin University of Medical Sciences, Children Growth Research Center, Research Institute for Prevention of Non-Communicable Diseases, Department of Pediatric Endocrinology, Qazvin, Iran
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Pilat JM, Brown RE, Chen Z, Berle NJ, Othon AP, Washington MK, Anant SA, Kurokawa S, Ng VH, Thompson JJ, Jacobse J, Goettel JA, Lee E, Choksi YA, Lau KS, Short SP, Williams CS. SELENOP modifies sporadic colorectal carcinogenesis and WNT signaling activity through LRP5/6 interactions. J Clin Invest 2023; 133:e165988. [PMID: 37166989 PMCID: PMC10313376 DOI: 10.1172/jci165988] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 10/06/2022] [Accepted: 05/09/2023] [Indexed: 05/12/2023] Open
Abstract
Although selenium deficiency correlates with colorectal cancer (CRC) risk, the roles of the selenium-rich antioxidant selenoprotein P (SELENOP) in CRC remain unclear. In this study, we defined SELENOP's contributions to sporadic CRC. In human single-cell cRNA-Seq (scRNA-Seq) data sets, we discovered that SELENOP expression rose as normal colon stem cells transformed into adenomas that progressed into carcinomas. We next examined the effects of Selenop KO in a mouse adenoma model that involved conditional, intestinal epithelium-specific deletion of the tumor suppressor adenomatous polyposis coli (Apc) and found that Selenop KO decreased colon tumor incidence and size. We mechanistically interrogated SELENOP-driven phenotypes in tumor organoids as well as in CRC and noncancer cell lines. Selenop-KO tumor organoids demonstrated defects in organoid formation and decreases in WNT target gene expression, which could be reversed by SELENOP restoration. Moreover, SELENOP increased canonical WNT signaling activity in noncancer and CRC cell lines. In defining the mechanism of action of SELENOP, we mapped protein-protein interactions between SELENOP and the WNT coreceptors low-density lipoprotein receptor-related proteins 5 and 6 (LRP5/6). Last, we confirmed that SELENOP-LRP5/6 interactions contributed to the effects of SELENOP on WNT activity. Overall, our results position SELENOP as a modulator of the WNT signaling pathway in sporadic CRC.
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Affiliation(s)
| | - Rachel E. Brown
- Program in Cancer Biology
- Medical Scientist Training Program, and
| | - Zhengyi Chen
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Epithelial Biology Center, VUMC, Nashville, Tennessee, USA
| | - Nathaniel J. Berle
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | | | - M. Kay Washington
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | | - Suguru Kurokawa
- Department of Pharmacy, Osaka Ohtani University, Tondabayashi, Osaka, Japan
| | | | | | - Justin Jacobse
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Willem Alexander Children’s Hospital, Leiden University Medical Center, Leiden, Netherlands
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Jeremy A. Goettel
- Program in Cancer Biology
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Center for Mucosal Inflammation and Cancer, VUMC, Nashville, Tennessee, USA
| | - Ethan Lee
- Program in Cancer Biology
- Epithelial Biology Center, VUMC, Nashville, Tennessee, USA
- Department of Cell and Developmental Biology and
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Yash A. Choksi
- Program in Cancer Biology
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
- Center for Mucosal Inflammation and Cancer, VUMC, Nashville, Tennessee, USA
| | - Ken S. Lau
- Program in Chemical and Physical Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Epithelial Biology Center, VUMC, Nashville, Tennessee, USA
- Center for Mucosal Inflammation and Cancer, VUMC, Nashville, Tennessee, USA
- Department of Cell and Developmental Biology and
- Department of Surgery, VUMC, Nashville, Tennessee, USA
| | - Sarah P. Short
- Program in Cancer Biology
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
- Center for Mucosal Inflammation and Cancer, VUMC, Nashville, Tennessee, USA
- Department of Internal Medicine, University of Iowa, Iowa City, Iowa, USA
| | - Christopher S. Williams
- Program in Cancer Biology
- Medical Scientist Training Program, and
- Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
- Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee, USA
- Center for Mucosal Inflammation and Cancer, VUMC, Nashville, Tennessee, USA
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11
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Gessler L, Kurtek C, Merholz M, Jian Y, Hashemolhosseini S. In Adult Skeletal Muscles, the Co-Receptors of Canonical Wnt Signaling, Lrp5 and Lrp6, Determine the Distribution and Size of Fiber Types, and Structure and Function of Neuromuscular Junctions. Cells 2022; 11:cells11243968. [PMID: 36552732 PMCID: PMC9777411 DOI: 10.3390/cells11243968] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/01/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022] Open
Abstract
Canonical Wnt signaling is involved in skeletal muscle cell biology. The exact way in which this pathway exerts its contribution to myogenesis or neuromuscular junctions (NMJ) is a matter of debate. Next to the common co-receptors of canonical Wnt signaling, Lrp5 and Lrp6, the receptor tyrosine kinase MuSK was reported to bind at NMJs WNT glycoproteins by its extracellular cysteine-rich domain. Previously, we reported canonical Wnt signaling being active in fast muscle fiber types. Here, we used conditional Lrp5 or Lrp6 knockout mice to investigate the role of these receptors in muscle cells. Conditional double knockout mice died around E13 likely due to ectopic expression of the Cre recombinase. Phenotypes of single conditional knockout mice point to a very divergent role for the two receptors. First, muscle fiber type distribution and size were changed. Second, canonical Wnt signaling reporter mice suggested less signaling activity in the absence of Lrps. Third, expression of several myogenic marker genes was changed. Fourth, NMJs were of fragmented phenotype. Fifth, recordings revealed impaired neuromuscular transmission. In sum, our data show fundamental differences in absence of each of the Lrp co-receptors and suggest a differentiated view of canonical Wnt signaling pathway involvement in adult skeletal muscle cells.
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Affiliation(s)
- Lea Gessler
- Institute of Biochemistry, Medical Faculty, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Christopher Kurtek
- Institute of Biochemistry, Medical Faculty, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Mira Merholz
- Institute of Biochemistry, Medical Faculty, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Yongzhi Jian
- Institute of Biochemistry, Medical Faculty, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Said Hashemolhosseini
- Institute of Biochemistry, Medical Faculty, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
- Muscle Research Center, Friedrich-Alexander-University of Erlangen-Nürnberg, 91054 Erlangen, Germany
- Correspondence: ; Tel.: +49-9131-85-24634
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12
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Li J, Song M, Li S, Wang X, Zhao H, Hou Z. The relationship between LRP5 rs556442 and rs638051 polymorphisms and mutations and their influence on bone metabolism in postmenopausal Xinjiang women with type 2 diabetes. ADV CLIN EXP MED 2022; 32:433-439. [PMID: 36421042 DOI: 10.17219/acem/155110] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 07/20/2022] [Accepted: 10/03/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The Wnt/β-catenin signaling pathway plays a crucial role in bone development and metabolism. The low-density lipoprotein receptor-related protein 5 (LRP5), an important receptor in the Wnt signaling pathway, promotes the osteogenesis of osteoblasts and curbs bone resorption by osteoclasts. OBJECTIVES To determine the expression of LRP5 polymorphisms (rs556442 and rs638051) and their relationship with bone mineral density (BMD) and bone metabolism markers in postmenopausal patients with type 2 diabetes mellitus (T2DM) in Xinjiang, China. MATERIAL AND METHODS According to dual-energy X-ray (DEXA) and oral glucose tolerance test (OGTT) results, 226 postmenopausal women from Xinjiang were divided into the following groups: normal glucose tolerance (NGT) + normal bone mass group (group A), NGT + abnormal bone mass group (group B), T2DM + normal bone mass group (group C), and T2DM + abnormal bone mass group (group D). RESULTS Femoral neck BMD was lower in group B women with the AG/GG genotype (mutant type) compared to women with the AA genotype (wild-type) at rs556442. Alkaline phosphatase (ALP) levels were lower in group D women with the AG/GG genotype (mutant type) compared to women with the AA genotype (wild-type) at rs556442 and rs638051. The factors influencing BMD (lumbar spine vertebrae 1-4 (L1-L4)) were triglyceride (TG) levels, body mass index (BMI), menopausal transition age, and age for rs556442 patients, and TG levels and menopausal transition age for rs638051 patients in group D. The factors affecting BMD (hip) were TG levels, BMI and age for rs556442 patients, and TG levels and age for rs638051 patients. CONCLUSIONS The LRP5 gene mutations are linked to bone metabolism disorders in postmenopausal women with T2DM and abnormal bone mass. High BMI and TG were positively associated with BMD, while increased age and menopausal transition age were negatively associated with BMD.
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Affiliation(s)
- Jun Li
- Department of Endocrinology and Metabolism, First Affiliated Hospital, Shihezi University School of Medicine, China
| | - Minli Song
- Department of Endocrinology and Metabolism, First Affiliated Hospital, Shihezi University School of Medicine, China
| | - Siyuan Li
- Medical College, Shihezi University School of Medicine, China
| | - Xiling Wang
- Medical College, Shihezi University School of Medicine, China
| | - Huirong Zhao
- Medical College, Shihezi University School of Medicine, China
| | - Zexin Hou
- Department of Endocrinology and Metabolism, First Affiliated Hospital, Shihezi University School of Medicine, China
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13
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Manoharan I, Swafford D, Shanmugam A, Patel N, Prasad PD, Mohamed R, Wei Q, Dong Z, Thangaraju M, Manicassamy S. Genetic Deletion of LRP5 and LRP6 in Macrophages Exacerbates Colitis-Associated Systemic Inflammation and Kidney Injury in Response to Intestinal Commensal Microbiota. J Immunol 2022; 209:368-378. [PMID: 35760519 PMCID: PMC9387749 DOI: 10.4049/jimmunol.2101172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Extraintestinal manifestations are common in inflammatory bowel disease and involve several organs, including the kidney. However, the mechanisms responsible for renal manifestation in inflammatory bowel disease are not known. In this study, we show that the Wnt-lipoprotein receptor-related proteins 5 and 6 (LRP5/6) signaling pathway in macrophages plays a critical role in regulating colitis-associated systemic inflammation and renal injury in a murine dextran sodium sulfate-induced colitis model. Conditional deletion of the Wnt coreceptors LRP5/6 in macrophages in mice results in enhanced susceptibility to dextran sodium sulfate colitis-induced systemic inflammation and acute kidney injury (AKI). Furthermore, our studies show that aggravated colitis-associated systemic inflammation and AKI observed in LRP5/6LysM mice are due to increased bacterial translocation to extraintestinal sites and microbiota-dependent increased proinflammatory cytokine levels in the kidney. Conversely, depletion of the gut microbiota mitigated colitis-associated systemic inflammation and AKI in LRP5/6LysM mice. Mechanistically, LRP5/6-deficient macrophages were hyperresponsive to TLR ligands and produced higher levels of proinflammatory cytokines, which are associated with increased activation of MAPKs. These results reveal how the Wnt-LRP5/6 signaling in macrophages controls colitis-induced systemic inflammation and AKI.
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Affiliation(s)
- Indumathi Manoharan
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Daniel Swafford
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
| | | | - Nikhil Patel
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Puttur D Prasad
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Riyaz Mohamed
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Qingqing Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA
- Research Department, Charlie Norwood VA Medical Center, Augusta, GA; and
| | - Muthusamy Thangaraju
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Santhakumar Manicassamy
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA;
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA
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14
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Wang X, Chen J, Xiong H, Yu X. Genotype-phenotype associations in familial exudative vitreoretinopathy: A systematic review and meta-analysis on more than 3200 individuals. PLoS One 2022; 17:e0271326. [PMID: 35830446 PMCID: PMC9278778 DOI: 10.1371/journal.pone.0271326] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 06/28/2022] [Indexed: 11/19/2022] Open
Abstract
Objective
To systematically review the relationship between genotypes and clinical phenotypes of Familial exudative vitreoretinopathy (FEVR) to support risk estimation and therapeutic decisions.
Design
Systematic review with meta-analysis.
Data sources
The data of our study were collected from PubMed, Embase, Web of Science, Cochrane, CBM, China National Knowledge Infrastructure (CNKI), WAN FANG and VIP databases since inception to August 2021.
Results
A total of 3257 patients from 32 studies were included according to the inclusion and exclusion criteria. Among all the cases, the mutation frequencies of LRP5, FZD4, NDP, TSPAN12, ZNF408 and KIF11 were 13.6%, 11.5%, 4.6%, 6.7%, 1.6%, and 5.7%, respectively. We found that the patients with NDP and FZD4 suffer more severe symptoms, among which 86.4% patients of NDP and 78.6% patients of FZD4 were in the advanced stage of FEVR. Retinal detachment is the most frequent symptom with patients of LRP5 and NDP mutations, accounting for 51.9% and 64.5%, respectively. For the patients with the mutation of TSPAN12, retinal fold is the most common clinical manifestation, and suffer the mildest clinical phenotypes compared with the other three genes.
Conclusion
The results of the meta-analysis indicate that different types of genetic mutations occur at different frequencies. In addition, the clinical manifestations of FEVR are related to the type of gene mutation. Therefore, targeted treatment strategies and follow-up recommendations should be adopted for different pathogenic genes of FEVR.
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Affiliation(s)
- Xiaona Wang
- Eye Hospital, The First affiliated Hospital of Harbin Medical University, Key Laboratory of Basic and Clinical Research of Heilongjiang Province, Harbin, Heilongjiang, China
| | - Jun Chen
- Eye Hospital, The First affiliated Hospital of Harbin Medical University, Key Laboratory of Basic and Clinical Research of Heilongjiang Province, Harbin, Heilongjiang, China
| | - Hui Xiong
- Eye Hospital, The First affiliated Hospital of Harbin Medical University, Key Laboratory of Basic and Clinical Research of Heilongjiang Province, Harbin, Heilongjiang, China
| | - Xuhui Yu
- Eye Hospital, The First affiliated Hospital of Harbin Medical University, Key Laboratory of Basic and Clinical Research of Heilongjiang Province, Harbin, Heilongjiang, China
- * E-mail:
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15
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Abdel-Hamid MS, Elhossini RM, Otaify GA, Abdel-Ghafar SF, Aglan MS. Osteoporosis-pseudoglioma syndrome in four new patients: identification of two novel LRP5 variants and insights on patients' management using bisphosphonates therapy. Osteoporos Int 2022; 33:1501-1510. [PMID: 35106624 DOI: 10.1007/s00198-022-06313-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 10/21/2021] [Accepted: 01/18/2022] [Indexed: 11/30/2022]
Abstract
UNLABELLED This study describes the clinical, radiological, and molecular data of four new patients with osteoporosis-pseudoglioma syndrome and assesses their response to bisphosphonate therapy. INTRODUCTION Osteoporosis-pseudoglioma syndrome (OPPG) is a very rare disorder characterized mainly by severe juvenile osteoporosis and congenital blindness. OPPG is caused by biallelic mutations in the gene encoding low-density lipoprotein receptor-related protein 5 (LRP5). METHODS We present the clinical, radiological, and molecular findings of four new patients with OPPG from Egypt. We also assessed patients' response to oral and intravenous bisphosphonate therapy. RESULTS All patients had reduced bone mineral density (BMD) with variable number of fractures per year, in addition to bone abnormalities and the characteristic eye phenotype associated with OPPG. Mutation analyses of LRP5 gene revealed three different homozygous variants including two novel ones, c.7delG (p.A3Qfs*80) and c.3280G > A (p.E1094K). The c.3280G > A (p.E1094K) was recurrent in two unrelated patients who shared a unique haplotype suggesting a possible founder effect. The use of bisphosphonate therapy was beneficial; however, intravenous bisphosphonate administration led to a more favorable response. CONCLUSION Our study described the phenotypic and genetic features of four patients with OPPG and identified two new LRP5 variants, thus expanding the mutational spectrum of OPPG. In addition, our study reinforces the efficiency of using intravenous bisphosphonates in the management of patients with OPPG.
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Affiliation(s)
- Mohamed S Abdel-Hamid
- Medical Molecular Genetics Department, Institute of Human Genetics and Genome Research, National Research Centre, Tahrir street, Dokki, Cairo, Egypt.
| | - Rasha M Elhossini
- Clinical Genetics Department, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Ghada A Otaify
- Clinical Genetics Department, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
| | - Sherif F Abdel-Ghafar
- Medical Molecular Genetics Department, Institute of Human Genetics and Genome Research, National Research Centre, Tahrir street, Dokki, Cairo, Egypt
| | - Mona S Aglan
- Clinical Genetics Department, Institute of Human Genetics and Genome Research, National Research Centre, Cairo, Egypt
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16
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Resendes C, Horan DJ, Robling AG, Gao B, Milne GL, Warman ML. Transiently increased serotonin has modest or no effects on bone mass accrual in growing female C57BL6/J or growing male and female Lrp5 A214V mice. Bone 2022; 158:116307. [PMID: 34973493 DOI: 10.1016/j.bone.2021.116307] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/17/2021] [Accepted: 12/17/2021] [Indexed: 11/16/2022]
Abstract
Serotonin (5HT) is a chemical messenger with biologic activities affecting multiple organs. Within the skeletal system, studies in mice and humans suggest blood 5HT levels affect bone, with elevations impairing and reductions enhancing bone accrual. Other studies, however, have not supported this hypothesis. Recently, administering 5HT to a Piezo1 mutant mouse strain with hyposerotonemia, intestinal dysmotility, and a doubling of femoral trabecular bone mass at 2 months of age, was reported to return the animals' intestinal motility and bone mass to normal. However, whether the 5HT directly affected bone metabolism or indirectly affected metabolism by improving intestinal function was not determined. Therefore, we administered 5HT to mice with normal intestinal function. We randomized female C57BL6/J mice and male and female mice that have increased bone mass due to a missense mutation in the WNT co-receptor LRP5 (Lrp5A214V) to receive 5HT or vehicle via daily IP injection from 4 weeks to 8 weeks of age. We did not observe consistent significant changes for distal femur trabecular, midshaft femur cortical, or vertebral body trabecular bone mass between 5HT treated and vehicle treated mice of either genotype. These data are compatible with other studies that have not observed a correlation between blood 5HT level and bone mass.
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Affiliation(s)
- Caitlin Resendes
- Orthopedic Research Laboratories, Department of Orthopedic Surgery, Boston Children's Hospital, Boston, MA, United States; Department of Genetics, Harvard Medical School, Boston, MA, United States
| | - Daniel J Horan
- Indiana University School of Medicine, Indianapolis, IN, United States
| | | | - Benlian Gao
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States
| | - Ginger L Milne
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States
| | - Matthew L Warman
- Orthopedic Research Laboratories, Department of Orthopedic Surgery, Boston Children's Hospital, Boston, MA, United States; Department of Genetics, Harvard Medical School, Boston, MA, United States.
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17
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Cicerone AP, Dailey W, Sun M, Santos A, Jeong D, Jones L, Koustas K, Drekh M, Schmitz K, Haque N, Felisky JA, Guzman AE, Mellert K, Trese MT, Capone A, Drenser KA, Mitton KP. A Survey of Multigenic Protein-Altering Variant Frequency in Familial Exudative Vitreo-Retinopathy (FEVR) Patients by Targeted Sequencing of Seven FEVR-Linked Genes. Genes (Basel) 2022; 13:495. [PMID: 35328049 PMCID: PMC8953269 DOI: 10.3390/genes13030495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/16/2021] [Revised: 03/04/2022] [Accepted: 03/09/2022] [Indexed: 02/06/2023] Open
Abstract
While Inherited Retinal Diseases (IRDs) are typically considered rare diseases, Familial Exudative Vitreo-Retinopathy (FEVR) and Norrie Disease (ND) are more rare than retinitis pigmentosa. We wanted to determine if multigenic protein-altering variants are common in FEVR subjects within a set of FEVR-related genes. The potential occurrence of protein-altering variants in two different genes has been documented in a very small percentage of patients, but potential multigenic contributions to FEVR remain unclear. Genes involved in these orphan pediatric retinal diseases are not universally included in available IRD targeted-sequencing panels, and cost is also a factor limiting multigenic-sequence-based testing for these rare conditions. To provide an accurate solution at lower cost, we developed a targeted-sequencing protocol that includes seven genes involved in Familial Exudative Vitreo-Retinopathy (FEVR) and Norrie disease. Seventy-six DNA samples from persons refered to clinic with possible FEVR and some close relatives were sequenced using a novel Oakland-ERI orphan pediatric retinal disease panel (version 2) providing 900 times average read coverage. The seven genes involved in FEVR/ND were: NDP (ChrX), CTNNB1 (Chr3); TSPAN12 (Chr7); KIF11 (Chr10), FZD4 (Chr11), LRP5 (Chr11), ZNF408 (Chr11). A total of 33 variants were found that alter protein sequence, with the following relative distribution: LRP5 13/33 (40%), FZD4 9/33 (27%), ZNF408 6/33 (18%), (KIF11 3/33 (9%), NDP 1/33 (3%), CTNNB1 1/33 (3%). Most protein-altering variants, 85%, were found in three genes: FZD4, LRP5, and ZNF408. Four previously known pathogenic variants were detected in five families and two unrelated individuals. Two novel, likely pathogenic variants were detected in one family (FZD4: Cys450ter), and a likely pathogenic frame shift termination variant was detected in one unrelated individual (LRP5: Ala919CysfsTer67). The average number of genes with protein-altering variants was greater in subjects with confirmed FEVR (1.46, n = 30) compared to subjects confirmed unaffected by FEVR (0.95, n = 20), (p = 0.009). Thirty-four percent of persons sequenced had digenic and trigenic protein-altering variants within this set of FEVR genes, which was much greater than expected in the general population (3.6%), as derived from GnomAD data. While the potential contributions to FEVR are not known for most of the variants in a multigenic context, the high multigenic frequency suggests that potential multigenic contributions to FEVR severity warrant future investigation. The targeted-sequencing format developed will support such exploration by reducing the testing cost to $250 (US) for seven genes and facilitating greater access to genetic testing for families with this very rare inherited retinal disease.
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Affiliation(s)
- Amanda Petrelli Cicerone
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
| | - Wendy Dailey
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
| | - Michael Sun
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Andrew Santos
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Daeun Jeong
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Lance Jones
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Konstaninos Koustas
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Mary Drekh
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Keaton Schmitz
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Naomi Haque
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
| | - Jennifer A. Felisky
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
| | - Alvaro E. Guzman
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
| | - Kendra Mellert
- Associated Retinal Consultants LLC, Royal Oak, MI 48073, USA; (K.M.); (M.T.T.); (A.C.)
| | - Michael T. Trese
- Associated Retinal Consultants LLC, Royal Oak, MI 48073, USA; (K.M.); (M.T.T.); (A.C.)
| | - Antonio Capone
- Associated Retinal Consultants LLC, Royal Oak, MI 48073, USA; (K.M.); (M.T.T.); (A.C.)
| | - Kimberly A. Drenser
- Associated Retinal Consultants LLC, Royal Oak, MI 48073, USA; (K.M.); (M.T.T.); (A.C.)
| | - Kenneth P. Mitton
- Eye Research Institute, Rochester, MI 48309, USA; (A.P.C.); (W.D.); (M.S.); (A.S.); (D.J.); (L.J.); (K.K.); (M.D.); (K.S.); (N.H.); (J.A.F.); (A.E.G.)
- Oakland University William Beaumont School of Medicine, Rochester, MI 48309, USA
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18
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Bai Z, Jiao Z, Kong X. [Analysis of LRP5 gene variants in a Chinese pedigree affected with Osteoporosis-pseudoglioma syndrome]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2022; 39:185-188. [PMID: 35076916 DOI: 10.3760/cma.j.cn511374-20201125-00828] [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: 06/14/2023]
Abstract
OBJECTIVE To explore the genetic basis for a Chinese pedigree with two individuals suffering from congenital blindness. METHODS Clinical data and peripheral blood samples of the pedigree were collected. Whole exome sequencing was carried out. Suspected variants were verified by Sanger sequencing. Pathogenicity of candidate variants was validated through searching of PubMed and related databases, and analyzed with bioinformatics software. RESULTS Both patients had congenital blindness and a history of multiple fractures. Other features have included microphthalmia and cornea opacity. One patient had normal intelligence, whilst the other had a language deficit. Both patients were found to harbor compound heterozygous variants of the LRP5 gene, namely c.1007_1015delGTAAGGCAG (p.C336X), c.4400G>A (p.R1467Q) and c.4600C>T (p.R1534X). The first one was derived from their mother, whilst the latter two were derived from their father. None of the three variants was detected in their elder sister. CONCLUSION The compound heterozygous variants of c.1007_1015delGTAAGGCAG (p.C336X) and c.4600C>T (p.R1534X) of the LRP5 gene probably underlay the pathogenesis of the Osteoporosis-pseudoglioma syndrome in this pedigree. The clinical significance of the c.4400G>A (p.R1467Q) variant has remained uncertain. Above finding has enriched the mutational spectrum of Osteoporosis-pseudoglioma syndrome.
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Affiliation(s)
- Zhouxian Bai
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, China.
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Cui Y, Hu X, Zhang C, Wang K. The genetic polymorphisms of key genes in WNT pathway (LRP5 and AXIN1) was associated with osteoporosis susceptibility in Chinese Han population. Endocrine 2022; 75:560-574. [PMID: 34590211 DOI: 10.1007/s12020-021-02866-z] [Citation(s) in RCA: 2] [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: 06/18/2021] [Accepted: 08/31/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Genetic factors play a critical role in the pathogenesis of osteoporosis. The imbalance of WNT/β-catenin will cause the occurrence of osteoporosis. LRP5 and AXIN1 play an important role in the classical Wnt/β-catenin signaling pathway. Our study was aimed to determine the association between five candidate single nucleotide polymorphisms (SNPs) of LRP5 or AXIN1 and osteoporosis susceptibility in Chinese Han population. METHODS A total of 599 osteoporosis patients and 599 healthy individuals were recruited for this case-control study. Agena MassARRAY was used to genotype SNPs. The association between SNPs and osteoporosis susceptibility in different genetic models was analyzed by PLINK software. We used false-positive report probability (FPRP) analysis to detect whether the positive results were just chance or noteworthy observations. Multifactor dimension reduction (MDR) was used to analyze the interaction of SNP-SNP in the osteoporosis risk. Finally, haplotype analysis was performed by plink1.07 and Haploview software. RESULTS We found that LRP5 rs11228240, AXIN1 rs2301522, and rs9921222 were significantly associated with the osteoporosis susceptibility. The results of subgroup analysis showed that LRP5 rs11228240 (protective factor) and AXIN1 rs2301522 (risk factor) were associated with the susceptibility of osteoporosis among participants who were age >60 years, female or BMI ≤ 24; AXIN1 rs9921222 significantly increased the risk of osteoporosis among participants with BMI ≤ 24. The genotype Ars2301522Crs9921222 could increase the susceptibility of osteoporosis (p = 0.026). The rs11228219LPR5, rs11228240 LPR5, rs2301522AXIN1, and rs9921222AXIN1 four-site model was the best model for predicting the osteoporosis risk (test accuracy = 0.541; CVC = 10/10). CONCLUSIONS The LRP5-rs11228240, AXIN1-rs2301522, and AXIN1- rs9921222 were associated with osteoporosis susceptibility in Chinese Han population.
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Affiliation(s)
- Yongsheng Cui
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China
- Department of Orthopedics, Ankang Central Hospital, Ankang, 725000, Shaanxi, China
| | - Xinglv Hu
- Department of Orthopedics, Xi'an Hospital of Traditional Chinese Medicine, Xi'an, 710021, Shaanxi, China
| | - Chen Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China.
| | - Kunzheng Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, Shaanxi Province, China.
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20
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Khrystoforova I, Shochat-Carvalho C, Harari R, Henke K, Woronowicz K, Harris MP, Karasik D. Zebrafish mutants reveal unexpected role of Lrp5 in osteoclast regulation. Front Endocrinol (Lausanne) 2022; 13:985304. [PMID: 36120446 PMCID: PMC9478031 DOI: 10.3389/fendo.2022.985304] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 08/16/2022] [Indexed: 11/24/2022] Open
Abstract
Low-density Lipoprotein Receptor-related Protein 5 (LRP5) functions as a co-receptor for Wnt ligands, controlling expression of genes involved in osteogenesis. In humans, loss-of-function mutations in LRP5 cause Osteoporosis-Pseudoglioma syndrome, a low bone mass disorder, while gain-of-function missense mutations have been observed in individuals with high bone mass. Zebrafish (Danio rerio) is a popular model for human disease research, as genetic determinants that control bone formation are generally conserved between zebrafish and mammals. We generated lrp5- knock-out zebrafish to study its role in skeletogenesis and homeostasis. Loss of lrp5 in zebrafish leads to craniofacial deformities and low bone mineral density (total body and head) at adult ages. To understand the mechanism and consequences of the observed phenotypes, we performed transcriptome analysis of the cranium of adult lrp5 mutants and siblings. Enrichment analysis revealed upregulation of genes significantly associated with hydrolase activity: mmp9, mmp13a, acp5a. acp5a encodes Tartrate-resistant acid phosphatase (TRAP) which is commonly used as an osteoclast marker, while Matrix metalloprotease 9, Mmp9, is known to be secreted by osteoclasts and stimulate bone resorption. These genes point to changes in osteoclast differentiation regulated by lrp5. To analyze these changes functionally, we assessed osteoclast dynamics in mutants and observed increased TRAP staining, significantly larger resorption areas, and developmental skeletal dysmorphologies in the mutant, suggesting higher resorptive activity in the absence of Lrp5 signaling. Our findings support a conserved role of Lrp5 in maintaining bone mineral density and revealed unexpected insights into the function of Lrp5 in bone homeostasis through moderation of osteoclast function.
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Affiliation(s)
| | | | - Ram Harari
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Katrin Henke
- Department of Orthopedics, Emory University, Atlanta, GA, United States
| | - Katherine Woronowicz
- Department of Orthopaedics, Boston Children’s Hospital, Boston, MA, United States
- Department of Genetics, Harvard Medical School, Boston, MA, United States
| | - Matthew P. Harris
- Department of Orthopaedics, Boston Children’s Hospital, Boston, MA, United States
- Department of Genetics, Harvard Medical School, Boston, MA, United States
| | - David Karasik
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
- *Correspondence: David Karasik,
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21
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Hua R, Zhang Y, Yan X, Tang D, Li X, Ni Q, Wang D, Zhu J. Syndecan-2, negatively regulated by miR-20b-5p, contributes to 5-fluorouracil resistance of colorectal cancer cells via the JNK/ERK signaling pathway. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1547-1557. [PMID: 34596215 DOI: 10.1093/abbs/gmab124] [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: 04/13/2021] [Indexed: 02/07/2023] Open
Abstract
5-Fluorouracil (5-FU) resistance has been long considered as an obstacle to the efficacy of chemotherapy in colorectal cancer (CRC). In this study, we demonstrated the role of miR-20b-5p-regulated syndecan-2 (SDC2) in 5-FU resistance of CRC cells. 5-FU-resistant SW480 CRC cells were established by treatment of SW480 cells with stepwise increase of 5-FU concentration. The results showed that SDC2 was expressed significantly higher in SW480/5-FU cells than in SW480/WT cells as revealed by quantitative real-time polymerase chain reaction and western blot analysis. MTT assay and BrdU assay showed that SDC2 overexpression led to increased cell survival rate, while SDC2 knockdown reversed the drug resistance of SW480/5-FU cells. Wound healing and transwell invasion assays revealed that knockdown of SDC2 inhibited the migratory and invasive ability of SW480/5-FU cells. Moreover, animal experiments indicated that si-SDC2 plays a suppressive role in tumor growth in vivo. We also confirmed that miR-20b-5p interacted with SDC2, which reversed the effect of SDC2 in SW480/5-FU cells via the c-Jun N-terminal kinase (JNK)/extracellular regulated protein kinases (ERK) signaling pathway. These findings showed that JNK/ERK signaling pathway is involved in miR-20b-5p/SDC2 axis-mediated 5-FU resistance in SW480/5-FU cells, indicating that the miR-20b-5p/SDC2 axis is a potential target for reversing 5-FU resistance in CRC.
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Affiliation(s)
- Ruheng Hua
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226021, China
- Department of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou 225001, China
| | - Yan Zhang
- Department of Chemotherapy, Affiliated Hospital of Nantong University, Nantong 226021, China
| | - Xiyue Yan
- Department of Hematology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - Dong Tang
- Department of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou 225001, China
| | - Xiaolong Li
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226021, China
| | - Qingfeng Ni
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226021, China
| | - Daorong Wang
- Department of General Surgery, Northern Jiangsu People's Hospital, Clinical Medical College, Yangzhou University, Yangzhou 225001, China
| | - Jianwei Zhu
- Department of Gastrointestinal Surgery, Affiliated Hospital of Nantong University, Nantong 226021, China
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22
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Junyent S, Reeves JC, Szczerkowski JLA, Garcin CL, Trieu TJ, Wilson M, Lundie-Brown J, Habib SJ. Wnt- and glutamate-receptors orchestrate stem cell dynamics and asymmetric cell division. eLife 2021; 10:59791. [PMID: 34028355 PMCID: PMC8177892 DOI: 10.7554/elife.59791] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 06/08/2020] [Accepted: 05/21/2021] [Indexed: 12/16/2022] Open
Abstract
The Wnt-pathway is part of a signalling network that regulates many aspects of cell biology. Recently, we discovered crosstalk between AMPA/Kainate-type ionotropic glutamate receptors (iGluRs) and the Wnt-pathway during the initial Wnt3a-interaction at the cytonemes of mouse embryonic stem cells (ESCs). Here, we demonstrate that this crosstalk persists throughout the Wnt3a-response in ESCs. Both AMPA and Kainate receptors regulate early Wnt3a-recruitment, dynamics on the cell membrane, and orientation of the spindle towards a Wnt3a-source at mitosis. AMPA receptors specifically are required for segregating cell fate components during Wnt3a-mediated asymmetric cell division (ACD). Using Wnt-pathway component knockout lines, we determine that Wnt co-receptor Lrp6 has particular functionality over Lrp5 in cytoneme formation, and in facilitating ACD. Both Lrp5 and 6, alongside pathway effector β-catenin act in concert to mediate the positioning of the dynamic interaction with, and spindle orientation to, a localised Wnt3a-source. Wnt-iGluR crosstalk may prove pervasive throughout embryonic and adult stem cell signalling.
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Affiliation(s)
- Sergi Junyent
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Joshua C Reeves
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - James LA Szczerkowski
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Clare L Garcin
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Tung-Jui Trieu
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Matthew Wilson
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Jethro Lundie-Brown
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
| | - Shukry J Habib
- Centre for Stem Cells and Regenerative Medicine, King's College LondonLondonUnited Kingdom
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Caetano da Silva C, Ricquebourg M, Orcel P, Fabre S, Funck‐Brentano T, Cohen‐Solal M, Collet C. More severe phenotype of early-onset osteoporosis associated with recessive form of LRP5 and combination with DKK1 or WNT3A. Mol Genet Genomic Med 2021; 9:e1681. [PMID: 33939331 PMCID: PMC8222848 DOI: 10.1002/mgg3.1681] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 12/13/2022] Open
Abstract
Background Early‐onset osteoporosis (EOOP) is defined by low bone mineral density (BMD), which increases the risk of fracture. Although the prevalence of osteoporosis at a young age is unknown, low BMD is highly linked to genetic background. Heterozygous pathogenic variants in low‐density lipoprotein receptor‐related protein 5 (LRP5) are associated with EOOP. This study aimed to investigate the genetic profile in patients with EOOP to better understand the variation in phenotype severity by using a targeted gene sequencing panel associated with bone fragility. Method and Results We used a sequencing panel with 17 genes reported to be related to bone fragility for analysis of 68 patients with EOOP. We found a high positivity rate of EOOP with LRP5 variants (14 patients, 20.6%). The remaining 79.4% of patients with EOOP but without LRP5 variants showed variable disease severity, as observed in patients with at least one variant in this gene. One patient, with multiple fractures and spine L1‐L4 BMD Z‐score −2.9, carried a novel pathogenic homozygous variant, c.2918T>C, p.(Leu973Pro), without any pseudoglioma. In addition to carrying the LRP5 variant, 2 other patients carried a heterozygous variant in Wnt signaling pathway genes: dickkopf WNT signaling pathway inhibitor 1 (DKK1) [NM_012242.4: c.359G>T, p.(Arg120Leu)] and Wnt family member 3A (WNT3A) [NM_033131.3: c.377G>A, p. (Arg126His)]. As compared with single‐variant LRP5 carriers, double‐variant carriers had a significantly lower BMD Z‐score (−4.1 ± 0.8) and higher mean number of fractures (6.0 ± 2.8 vs. 2.2 ± 1.9). Analysis of the family segregation suggests the inheritance of BMD trait. Conclusion Severe forms of EOOP may occur with carriage of 2 pathogenic variants in genes encoding regulators of the Wnt signaling pathway. Two‐variant carriers of Wnt pathway genes had severe EOOP. Moreover, DKK1 and WNT3A genes should be included in next‐generation sequence analyses of bone fragility. Gene association may occur in the same signaling pathway and can generate a severe bone phenotype in early‐onset osteoporosis. Recessive form associated with lipoprotein receptor‐related protein 5 could be responsible for a stronger phenotype. Interestingly this recessive form is not associated with ocular problems as observed in pseudoglioma osteoporosis or vitreoretinopathy. Assessment of genetics based on an next generation sequencing panel should include WNT3A and DKK1.
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Affiliation(s)
| | - Manon Ricquebourg
- Inserm U1132 and Université de ParisParisFrance
- Department of RheumatologyHôpital Lariboisière, AP‐HPParisFrance
| | - Philippe Orcel
- Inserm U1132 and Université de ParisParisFrance
- Department of RheumatologyHôpital Lariboisière, AP‐HPParisFrance
| | - Stéphanie Fabre
- Inserm U1132 and Université de ParisParisFrance
- Department of RheumatologyHôpital Lariboisière, AP‐HPParisFrance
| | - Thomas Funck‐Brentano
- Inserm U1132 and Université de ParisParisFrance
- Department of RheumatologyHôpital Lariboisière, AP‐HPParisFrance
| | - Martine Cohen‐Solal
- Inserm U1132 and Université de ParisParisFrance
- Department of RheumatologyHôpital Lariboisière, AP‐HPParisFrance
| | - Corinne Collet
- Inserm U1132 and Université de ParisParisFrance
- Functional Unit of Molecular BiologyHôpital Lariboisière, AP‐HPParisFrance
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Lim KE, Bullock WA, Horan DJ, Williams BO, Warman ML, Robling AG. Co-deletion of Lrp5 and Lrp6 in the skeleton severely diminishes bone gain from sclerostin antibody administration. Bone 2021; 143:115708. [PMID: 33164872 PMCID: PMC7770084 DOI: 10.1016/j.bone.2020.115708] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 04/24/2020] [Revised: 10/01/2020] [Accepted: 10/20/2020] [Indexed: 01/14/2023]
Abstract
The cysteine knot protein sclerostin is an osteocyte-derived secreted inhibitor of the Wnt co-receptors LRP5 and LRP6. LRP5 plays a dominant role in bone homeostasis, but we previously reported that Sost/sclerostin suppression significantly increased osteogenesis regardless of Lrp5 presence or absence. Those observations suggested that the bone forming effects of sclerostin inhibition can occur through Lrp6 (when Lrp5 is suppressed), or through other yet undiscovered mechanisms independent of Lrp5/6. To distinguish between these two possibilities, we generated mice with compound deletion of Lrp5 and Lrp6 selectively in bone, and treated them with sclerostin monoclonal antibody (Scl-mAb). All mice were homozygous flox for both Lrp5 and Lrp6 (Lrp5f/f; Lrp6f/f), and varied only in whether or not they carried the Dmp1-Cre transgene. Positive (Cre+) and negative (Cre-) mice were injected with Scl-mAb or vehicle from 4.5 to 14 weeks of age. Vehicle-treated Cre+ mice exhibited significantly reduced skeletal properties compared to vehicle-treated Cre- mice, as assessed by DXA, μCT, pQCT, and histology, indicating that Lrp5/6 deletions were effective and efficient. Scl-mAb treatment improved nearly every bone-related parameter among Cre- mice, but the same treatment in Cre+ mice resulted in little to no improvement in skeletal properties. For the few endpoints where Cre+ mice responded to Scl-mAb, it is likely that antibody-induced promotion of Wnt signaling occurred in cell types earlier in the mesenchymal/osteoblast differentiation pathway than the Dmp1-expressing stage. This latter conclusion was supported by changes in some histomorphometric parameters. In conclusion, unlike with the deletion of Lrp5 alone, the bone-selective late-stage co-deletion of Lrp5 and Lrp6 significantly impairs or completely nullifies the osteogenic action of Scl-mAb, and highlights a major role for both Lrp5 and Lrp6 in the mechanism of action for the bone-building effects of sclerostin antibody.
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Affiliation(s)
- Kyung-Eun Lim
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Whitney A Bullock
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Daniel J Horan
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Bart O Williams
- Program for Skeletal Disease and Tumor Microenvironment, Center for Cancer and Cell Biology, Van Andel Research Institute, Grand Rapids, MI, USA
| | - Matthew L Warman
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, MA, USA
| | - Alexander G Robling
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA; Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA; Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA; Indiana Center for Musculoskeletal Health, Indianapolis, IN, USA.
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Veerapathiran S, Teh C, Zhu S, Kartigayen I, Korzh V, Matsudaira PT, Wohland T. Wnt3 distribution in the zebrafish brain is determined by expression, diffusion and multiple molecular interactions. eLife 2020; 9:e59489. [PMID: 33236989 PMCID: PMC7725503 DOI: 10.7554/elife.59489] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 05/29/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022] Open
Abstract
Wnt3 proteins are lipidated and glycosylated signaling molecules that play an important role in zebrafish neural patterning and brain development. However, the transport mechanism of lipid-modified Wnts through the hydrophilic extracellular environment for long-range action remains unresolved. Here we determine how Wnt3 accomplishes long-range distribution in the zebrafish brain. First, we characterize the Wnt3-producing source and Wnt3-receiving target regions. Subsequently, we analyze Wnt3 mobility at different length scales by fluorescence correlation spectroscopy and fluorescence recovery after photobleaching. We demonstrate that Wnt3 spreads extracellularly and interacts with heparan sulfate proteoglycans (HSPG). We then determine the binding affinity of Wnt3 to its receptor, Frizzled1 (Fzd1), using fluorescence cross-correlation spectroscopy and show that the co-receptor, low-density lipoprotein receptor-related protein 5 (Lrp5), is required for Wnt3-Fzd1 interaction. Our results are consistent with the extracellular distribution of Wnt3 by a diffusive mechanism that is modified by tissue morphology, interactions with HSPG, and Lrp5-mediated receptor binding, to regulate zebrafish brain development.
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Affiliation(s)
- Sapthaswaran Veerapathiran
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
| | - Cathleen Teh
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
| | - Shiwen Zhu
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
| | - Indira Kartigayen
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
| | - Vladimir Korzh
- International Institute of Molecular and Cell Biology in WarsawWarsawPoland
| | - Paul T Matsudaira
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
| | - Thorsten Wohland
- Department of Biological Sciences, National University of SingaporeSingaporeSingapore
- Center for BioImaging Sciences, National University of SingaporeSingaporeSingapore
- Department of Chemistry, National University of SingaporeSingaporeSingapore
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Lettini G, Condelli V, Pietrafesa M, Crispo F, Zoppoli P, Maddalena F, Laurenzana I, Sgambato A, Esposito F, Landriscina M. TRAP1 Regulates Wnt/β-Catenin Pathway through LRP5/6 Receptors Expression Modulation. Int J Mol Sci 2020; 21:E7526. [PMID: 33065966 PMCID: PMC7589514 DOI: 10.3390/ijms21207526] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 12/01/2022] Open
Abstract
Wnt/β-Catenin signaling is involved in embryonic development, regeneration, and cellular differentiation and is responsible for cancer stemness maintenance. The HSP90 molecular chaperone TRAP1 is upregulated in 60-70% of human colorectal carcinomas (CRCs) and favors stem cells maintenance, modulating the Wnt/β-Catenin pathway and preventing β-Catenin phosphorylation/degradation. The role of TRAP1 in the regulation of Wnt/β-Catenin signaling was further investigated in human CRC cell lines, patient-derived spheroids, and CRC specimens. TRAP1 relevance in the activation of Wnt/β-Catenin signaling was highlighted by a TCF/LEF Cignal Reporter Assay in Wnt-off HEK293T and CRC HCT116 cell lines. Of note, this regulation occurs through the modulation of Wnt ligand receptors LRP5 and LRP6 that are both downregulated in TRAP1-silenced cell lines. However, while LRP5 mRNA is significantly downregulated upon TRAP1 silencing, LRP6 mRNA is unchanged, suggesting independent mechanisms of regulation by TRAP1. Indeed, LRP5 is regulated upon promoter methylation in CRC cell lines and human CRCs, whereas LRP6 is controlled at post-translational level by protein ubiquitination/degradation. Consistently, human CRCs with high TRAP1 expression are characterized by the co-upregulation of active β-Catenin, LRP5 and LRP6. Altogether, these data suggest that Wnt/β-Catenin signaling is modulated at multiple levels by TRAP1.
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Affiliation(s)
- Giacomo Lettini
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Valentina Condelli
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Michele Pietrafesa
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Fabiana Crispo
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Pietro Zoppoli
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Francesca Maddalena
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Ilaria Laurenzana
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Alessandro Sgambato
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
| | - Franca Esposito
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Matteo Landriscina
- Laboratory of Pre-Clinical and Translational Research, IRCCS, Referral Cancer Center of Basilicata, 85028 Rionero in Vulture, PZ, Italy; (G.L.); (V.C.); (M.P.); (F.C.); (P.Z.); (F.M.); (I.L.); (A.S.)
- Medical Oncology Unit, Department of Medical and Surgical Sciences, University of Foggia, 71100 Foggia, Italy
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Kaupp S, Horan DJ, Lim KE, Feldman HA, Robling AG, Warman ML, Jacobsen CM. Combination therapy in the Col1a2 G610C mouse model of Osteogenesis Imperfecta reveals an additive effect of enhancing LRP5 signaling and inhibiting TGFβ signaling on trabecular bone but not on cortical bone. Bone 2020; 131:115084. [PMID: 31648079 PMCID: PMC7232829 DOI: 10.1016/j.bone.2019.115084] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 09/09/2019] [Accepted: 09/26/2019] [Indexed: 01/05/2023]
Abstract
Enhancing LRP5 signaling and inhibiting TGFβ signaling have each been reported to increase bone mass and improve bone strength in wild-type mice. Monotherapy targeting LRP5 signaling, or TGFβ signaling, also improved bone properties in mouse models of Osteogenesis Imperfecta (OI). We investigated whether additive or synergistic increases in bone properties would be attained if enhanced LRP5 signaling was combined with TGFβ inhibition. We crossed an Lrp5 high bone mass (HBM) allele (Lrp5A214V) into the Col1a2G610C/+ mouse model of OI. At 6-weeks-of-age we began treating mice with an antibody that inhibits TGFβ1, β2, and β3 (mAb 1D11), or with an isotype-matched control antibody (mAb 13C4). At 12-weeks-old, we observed that combining enhanced LRP5 signaling with inhibited TGFβ signaling produced an additive effect on femoral and vertebral trabecular bone volumes, but not on cortical bone volumes. Although enhanced LRP5 signaling increased femur strength in a 3-point bending assay in Col1a2G610C/+ mice, femur strength did not improve further with TGFβ inhibition. Neither enhanced LRP5 signaling nor TGFβ inhibition, alone or in combination, improved femur 3-point-bending post-yield displacement in Col1a2G610C/+ mice. These pre-clinical studies indicate combination therapies that target LRP5 and TGFβ signaling should increase trabecular bone mass in patients with OI more than targeting either signaling pathway alone. Whether additive increases in trabecular bone mass will occur in, and clinically benefit, patients with OI needs to be determined.
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Affiliation(s)
- Shannon Kaupp
- Orthopedic Research Laboratories, Department of Orthopedic Surgery, Boston Children's Hospital, Boston, MA, USA
| | - Dan J Horan
- Department of Anatomy and Cell Biology, Indiana University, Indianapolis, IN, USA
| | - Kyung-Eun Lim
- Department of Anatomy and Cell Biology, Indiana University, Indianapolis, IN, USA
| | - Henry A Feldman
- Institutional Centers for Clinical and Translational Research, Boston Children's Hospital, Boston, MA, USA
| | - Alexander G Robling
- Department of Anatomy and Cell Biology, Indiana University, Indianapolis, IN, USA
| | - Matthew L Warman
- Orthopedic Research Laboratories, Department of Orthopedic Surgery, Boston Children's Hospital, Boston, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Christina M Jacobsen
- Divisions of Endocrinology and Genetics and Genomics, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
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Li J, Li S, Zhao H, Li J, Wang S, Shi Y. A Study of the Relationship between the Polymorphism and Mutation of rs682429 and rs3781590 in the LRP5 Gene and Bone Metabolism in Postmenopausal Type 2 Diabetic Women in Xinjiang. J Diabetes Res 2020; 2020:3071217. [PMID: 32405501 PMCID: PMC7204136 DOI: 10.1155/2020/3071217] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 04/17/2020] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVE To explore the expression of the polymorphism and mutation of rs682429 and rs3781590 in the low-density lipoprotein receptor-related protein 5 (LRP5) genotype and to analyse the relationship of bone mineral density (BMD) and bone metabolism markers in postmenopausal women with type-2 diabetes mellitus (T2DM) in Xinjiang, China, to provide a basis for prevention and treatment of the disease. METHODS A total of 136 postmenopausal women were included in the study. According to the results of an oral glucose tolerance test (OGTT) and dual-energy X-ray (DEXA) determination of BMD, the study subjects were divided into 4 groups: group A: normal OGTT+normal bone mass group; group B: normal OGTT+osteoporotic (OP) group; group C: T2DM+normal bone mass group; group D: T2DM+osteoporotic (OP) group. Calcium (Ca), phosphorus (P), alkaline phosphatase (ALP), and clinical biochemical data were determined; haemoglobin A1c (HbA1c) was measured by HPLC; BMD of the femoral neck, hip, and lumbar spine (L1-4) was measured by dual-energy X-ray (DEXA); and the rs682429 and rs3781590 polymorphisms of the LRP5 gene were detected by time-of-flight mass spectrometry (TOF MS). RESULTS (1) The rs682429 polymorphism of the LRP5 genotype distribution was statistically significant (P < 0.05) in group B compared with group A. (2) The triglycerides (TG) of women with the CT/TT genotype (mutant type) were higher than those of women with the CC genotype (wild type) (2.37 ± 1.30 vs. 1.52 ± 0.83, P < 0.05) at the rs3781590 site of the LRP5 gene in group D. (3) Multiple linear regression analysis showed that TG (β = 0.034, P < 0.05) and body mass index (BMI) (β = 0.013, P < 0.05) were the influencing factors of BMD (L1-4) in T2DM patients. TG (β = 0.022, P < 0.05), BMI (β = 0.009, P < 0.05), and duration of menopause (β = 0.005, P < 0.05) were the influencing factors of BMD (hip). CONCLUSION (1) The rs682429 polymorphism site in the LRP5 gene may be involved in bone metabolism in postmenopausal women from Xinjiang. (2) The rs3781590 mutation in the LRP5 gene from these subjects may be involved in lipid metabolism. (3) Among postmenopausal women with type 2 diabetes mellitus and bone mass abnormality in the Xinjiang Shihezi area, high BMI and TG are protective factors against increased BMD. Duration of menopause is a risk factor for increased BMD.
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Affiliation(s)
- Jun Li
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, China
| | - SiYuan Li
- Medical College, Shihezi University, Shihezi 832002, China
| | - HuiRong Zhao
- Department of Endocrinology and Metabolism, The First Affiliated Hospital, Shihezi University School of Medicine, Shihezi, Xinjiang 832002, China
| | - JiaJia Li
- Department of Endocrinology and Metabolism, The Second People's Hospital of Nanyang, Nanyang, Henan 473000, China
| | - Shuang Wang
- Department of Endocrinology and Metabolism, The Central Hospital of Yangpu District in Shanghai, Shanghai 200000, China
| | - YanQiu Shi
- Department of Cardiovascular Medicine, Xiaoshan Hospital of Hangzhou in Zhejiang, Hangzhou, Zhejiang 310000, China
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Wang QF, Bi HS, Qin ZL, Wang P, Nie FF, Zhang GW. Associations of LRP5 Gene With Bone Mineral Density, Bone Turnover Markers, and Fractures in the Elderly With Osteoporosis. Front Endocrinol (Lausanne) 2020; 11:571549. [PMID: 33101205 PMCID: PMC7545741 DOI: 10.3389/fendo.2020.571549] [Citation(s) in RCA: 5] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 08/20/2020] [Indexed: 12/06/2022] Open
Abstract
Objective: The study aimed to explore the associations of rs4988300 and rs634008 in the low-density lipoprotein receptor-related protein 5 (LRP5) gene with bone mineral density (BMD), bone turnover markers (BTM), and fractures in elderly patients with osteoporosis (OP). Methods: Our study included 328 unrelated OP patients with or without fractures. Genomic DNA was extracted for genotyping. BTM levels were assessed by electrochemiluminescence (ECL). Dual-energy X-ray absorptiometry (DXA) was employed to measure BMD in the lumbar spine (LS) and proximal femur. Basic features between the OP and fracture groups were analyzed using the t-test. The Chi-square test was performed to analyze the differences in allele and genotype frequencies. The associations of single-nucleotide polymorphisms (SNPs) with BMD and BTM in the subgroups were investigated by the analysis of covariance (ANCOVA) adjusted for confounding factors. Results: In both females and males, individuals with fractures exhibited higher BTM levels and lower BMD values than those with OP (P < 0.05). The allele and genotype frequencies of rs4988300 in the subgroups were significantly different (P < 0.05). In both females and males suffering from OP, participants with rs4988300 GG or rs634008 TT presented lower procollagen I N-terminal propeptide (PINP) levels (P < 0.05). Women with OP carrying rs4988300 GG exhibited lower BMD values at FN and TH (P < 0.05). In both females and males with fractures, individuals carrying rs4988300 GG genotype or rs634008 TT genotype exhibited lower PINP levels and BMD values at FN and TH than those with other genotypes (P < 0.05). Conclusions: Rs4988300 and rs634008 polymorphisms in the LRP5 gene are associated with bone phenotypes in the elderly with OP or fractures.
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Affiliation(s)
- Qi-Fei Wang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Hong-Sen Bi
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Ze-Lian Qin
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
- *Correspondence: Ze-Lian Qin
| | - Pu Wang
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Fang-Fei Nie
- Department of Plastic Surgery, Peking University Third Hospital, Beijing, China
| | - Guang-Wu Zhang
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China
- Guang-Wu Zhang
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Ciubean AD, Ungur RA, Irsay L, Ciortea VM, Borda IM, Dogaru GB, Trifa AP, Vesa SC, Buzoianu AD. Polymorphisms of FDPS, LRP5, SOST and VKORC1 genes and their relation with osteoporosis in postmenopausal Romanian women. PLoS One 2019; 14:e0225776. [PMID: 31774873 PMCID: PMC6880991 DOI: 10.1371/journal.pone.0225776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 08/22/2019] [Accepted: 11/12/2019] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES This study aimed to assess the relationship between bone mineral density and genotypes of four polymorphisms in previously detected osteoporosis-candidate genes (FDPS rs2297480, LRP5 rs3736228, SOST rs1234612, VKORC1 rs9934438) in postmenopausal Romanian women with primary osteoporosis. METHODS An analytical, prospective, transversal, observational, case-control study on 364 postmenopausal Romanian women was carried out between June 2016 and August 2017 in Cluj Napoca, Romania. Clinical data and blood samples were collected from all study participants. Four polymorphisms were genotyped using TaqMan SNP Genotyping assays, run on a QuantStudio 3 real-time PCR machine. RESULTS Women with TT genotype in FDPS rs2297480 had significantly lower bone mineral density values in the lumbar spine and total hip, and the presence of the T allele was significantly associated with the osteoporosis. Women carrying the CC genotype in LRP5 rs3736228 tend to have lower bone mineral density values in the femoral neck and total hip. No significant association was found for the genotypes of SOST rs1234612 or VKORC1 rs9934438. CONCLUSIONS Our study showed a strong association between bone mineral density and polymorphisms in the FDPS gene, and a borderline association with LRP5 and SOST polymorphisms in postmenopausal Romanian women with osteoporosis. No association was found for VKORC1.
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Affiliation(s)
- Alina Deniza Ciubean
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Rodica Ana Ungur
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
- * E-mail: (RAU); (LI)
| | - Laszlo Irsay
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
- * E-mail: (RAU); (LI)
| | - Viorela Mihaela Ciortea
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Ileana Monica Borda
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Gabriela Bombonica Dogaru
- Department of Rehabilitation, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Adrian Pavel Trifa
- Department of Genetics, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Stefan Cristian Vesa
- Department of Pharmacology, Toxicology and Clinical Pharmacology, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
| | - Anca Dana Buzoianu
- Department of Pharmacology, Toxicology and Clinical Pharmacology, University of Medicine and Pharmacy “Iuliu Hațieganu”, Cluj-Napoca, Romania
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Hull S, Arno G, Ostergaard P, Pontikos N, Robson AG, Webster AR, Hogg CR, Wright GA, Henderson RHH, Martin CA, Jackson AP, Mansour S, Moore AT, Michaelides M. Clinical and Molecular Characterization of Familial Exudative Vitreoretinopathy Associated With Microcephaly. Am J Ophthalmol 2019; 207:87-98. [PMID: 31077665 DOI: 10.1016/j.ajo.2019.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 12/29/2018] [Revised: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE Familial exudative vitreoretinopathy (FEVR) is a rare finding in patients with genetic forms of microcephaly. This study documents the detailed phenotype and expands the range of genetic heterogeneity. DESIGN Retrospective case series. METHODS Twelve patients (10 families) with a diagnosis of FEVR and microcephaly were ascertained from pediatric genetic eye clinics and underwent full clinical assessment including retinal imaging. Molecular investigations included candidate gene Sanger sequencing, whole-exome sequencing (WES), and whole-genome sequencing (WGS). RESULTS All patients had reduced vision and nystagmus. Six were legally blind. Two probands carried bi-allelic LRP5 variants, both presenting with bilateral retinal folds. A novel homozygous splice variant, and 2 missense variants were identified. Subsequent bone density measurement identified osteoporosis in one proband. Four families had heterozygous KIF11 variants. Two probands had a retinal fold in one eye and chorioretinal atrophy in the other; the other 2 had bilateral retinal folds. Four heterozygous variants were found, including 2 large deletions not identified on Sanger sequencing or WES. Finally, a family of 2 children with learning difficulties, abnormal peripheral retinal vasculogenesis, and rod-cone dystrophy were investigated. They were found to have bi-allelic splicing variants in TUBGCP6. Three families remain unsolved following WES and WGS. CONCLUSIONS Molecular diagnosis has been achieved in 7 of 10 families investigated, including a previously unrecognized association with LRP5. WGS enabled molecular diagnosis in 3 families after prior negative Sanger sequencing of the causative gene. This has enabled patient-specific care with targeted investigations and accurate family counseling.
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Affiliation(s)
- Sarah Hull
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Gavin Arno
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Pia Ostergaard
- Genetics Research Centre, Molecular and Clinical Sciences, St George's University of London, London, United Kingdom
| | - Nikolas Pontikos
- UCL Institute of Ophthalmology, University College London, London, United Kingdom
| | - Anthony G Robson
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Andrew R Webster
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Chris R Hogg
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Genevieve A Wright
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom
| | - Robert H H Henderson
- Moorfields Eye Hospital, London, United Kingdom; Ophthalmology Department, Great Ormond Street Hospital for Children, London, United Kingdom
| | - Carol-Anne Martin
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Andrew P Jackson
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Sahar Mansour
- Genetics Research Centre, Molecular and Clinical Sciences, St George's University of London, London, United Kingdom; South West Thames Regional Genetics Service, St George's Healthcare NHS Trust, London, United Kingdom
| | - Anthony T Moore
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom; Ophthalmology Department, University of California, San Francisco, California
| | - Michel Michaelides
- UCL Institute of Ophthalmology, University College London, London, United Kingdom; Moorfields Eye Hospital, London, United Kingdom.
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Whyte MP, McAlister WH, Zhang F, Bijanki VN, Nenninger A, Gottesman GS, Lin EL, Huskey M, Duan S, Dahir K, Mumm S. New explanation for autosomal dominant high bone mass: Mutation of low-density lipoprotein receptor-related protein 6. Bone 2019; 127:228-243. [PMID: 31085352 DOI: 10.1016/j.bone.2019.05.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 03/26/2019] [Revised: 05/01/2019] [Accepted: 05/03/2019] [Indexed: 01/10/2023]
Abstract
LRP5 encodes low-density lipoprotein receptor-related protein 5 (LRP5). When LRP5 with a Frizzled receptor join on the surface of an osteoblast and bind a member of the Wnt family of ligands, canonical Wnt/β-catenin signaling occurs and increases bone formation. Eleven heterozygous gain-of-function missense mutations within LRP5 are known to prevent the LRP5 inhibitory ligands sclerostin and dickkopf1 from attaching to LRP5's first β-propeller, and thereby explain the rare autosomal dominant (AD) skeletal disorder "high bone mass" (HBM). LRP6 is a cognate co-receptor of LRP5 and similarly controls Wnt signaling in osteoblasts, yet the consequences of increased LRP6-mediated signaling remain unknown. We investigated two multi-generational American families manifesting the clinical and routine laboratory features of LRP5 HBM but without an LRP5 defect and instead carrying a heterozygous LRP6 missense mutation that would alter the first β-propeller of LRP6. In Family 1 LRP6 c.602C>T, p.A201V was homologous to LRP5 HBM mutation c.641C>T, p.A214V, and in Family 2 LRP6 c.553A>C, p.N185H was homologous to LRP5 HBM mutation c.593A>G, p.N198S but predicting a different residue at the identical amino acid position. In both families the LRP6 mutation co-segregated with striking generalized osteosclerosis and hyperostosis. Clinical features shared by the seven LRP6 HBM family members and ten LRP5 HBM patients included a broad jaw, torus palatinus, teeth encased in bone and, reportedly, resistance to fracturing and inability to float in water. For both HBM disorders, all affected individuals were taller than average for Americans (Ps < 0.005), but with similar mean height Z-scores (P = 0.7606) and indistinguishable radiographic skeletal features. Absence of adult maxillary lateral incisors was reported by some LRP6 HBM individuals. In contrast, our 16 patients with AD osteopetrosis [i.e., Albers-Schönberg disease (A-SD)] had an unremarkable mean height Z-score (P = 0.9401) lower than for either HBM group (Ps < 0.05). DXA mean BMD Z-scores in LRP6 HBM versus LRP5 HBM were somewhat higher at the lumbar spine (+7.8 vs +6.5, respectively; P = 0.0403), but no different at the total hip (+7.9 vs +7.7, respectively; P = 0.7905). Among the three diagnostic groups, only the LRP6 HBM DXA BMD values at the spine seemed to increase with subject age (R = +0.7183, P = 0.0448). Total hip BMD Z-scores were not significantly different among the three disorders (Ps > 0.05), and showed no age effect (Ps > 0.1). HR-pQCT available only for LRP6 HBM revealed indistinct corticomedullary boundaries, high distal forearm and tibial total volumetric BMD, and finite element analysis predicted marked fracture resistance. Hence, we have discovered mutations of LRP6 that cause a dento-osseous disorder indistinguishable without mutation analysis from LRP5 HBM. LRP6 HBM seems associated with generally good health, providing some reassurance for the development of anabolic treatments aimed to enhance LRP5/LRP6-mediated osteogenesis.
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Affiliation(s)
- Michael P Whyte
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.
| | - William H McAlister
- Mallinckrodt Institute of Radiology, Washington University School of Medicine at St. Louis Children's Hospital, St. Louis, MO 63110, USA.
| | - Fan Zhang
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA.
| | - Vinieth N Bijanki
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA.
| | - Angela Nenninger
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA.
| | - Gary S Gottesman
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA.
| | - Elizabeth L Lin
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.
| | - Margaret Huskey
- Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.
| | - Shenghui Duan
- Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.
| | - Kathryn Dahir
- Department of Endocrinology and Diabetes, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
| | - Steven Mumm
- Center for Metabolic Bone Disease and Molecular Research, Shriners Hospitals for Children - St. Louis, St. Louis, MO 63110, USA; Division of Bone and Mineral Diseases, Department of Internal Medicine, Washington University School of Medicine at Barnes-Jewish Hospital, St. Louis, MO 63110, USA.
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Wang J, Yang J, Cheng X, Yin F, Zhao Y, Zhu Y, Yan Z, Khodaei F, Ommati MM, Manthari RK, Wang J. Influence of Calcium Supplementation against Fluoride-Mediated Osteoblast Impairment in Vitro: Involvement of the Canonical Wnt/β-Catenin Signaling Pathway. J Agric Food Chem 2019; 67:10285-10295. [PMID: 31443611 DOI: 10.1021/acs.jafc.9b03835] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 06/10/2023]
Abstract
Fluoride (F) is capable of promoting abnormal proliferation and differentiation in primary cultured mouse osteoblasts (OB cells), although the underlying mechanism responsible remains rare. This study aimed to explore the roles of wingless and INT-1 (Wnt) signaling pathways and screen appropriate doses of calcium (Ca2+) to alleviate the sodium fluoride (NaF)-induced OB cell toxicity. For this, we evaluated the effect of dickkopf-related protein 1 (DKK1) and Ca2+ on mRNA levels of wingless/integrated 3a (Wnt3a), low-density lipoprotein receptor-related protein 5 (LRP5), dishevelled 1 (Dv1), glycogen synthase kinase 3β (GSK3β), β-catenin, lymphoid enhancer binding factor 1 (LEF1), and cellular myelocytomatosis oncogene (cMYC), as well as Ccnd1 (Cyclin D1) in OB cells challenged with 10-6 mol/L NaF for 24 h. The demonstrated data showed that F significantly increased the OB cell proliferation rate. Ectogenic 0.5 mg/L DKK1 significantly inhibited the proliferation of OB cells induced by F. The mRNA expression levels of Wnt3a, LRP5, Dv1, LEF1, β-catenin, cMYC, and Ccnd1 were significantly increased in the F group, while significantly decreased in the 10-6 mol/L NaF + 0.5 mg/L DKK1 (FY) group. The mRNA expression levels of Wnt3a, LRP5, β-catenin, and cMYC were significantly decreased in the 10-6 mol/L NaF + 2 mmol/L CaCl2 (F+CaII) group. The protein expression levels of Wnt3a, Cyclin D1, cMYC, and β-catenin were significantly increased in the F group, whereas they were decreased in the F+CaII group. However, the mRNA and protein expression levels of GSK3β were significantly decreased in the F group while significantly increased in the F+CaII group. In summary, F activated the canonical Wnt/β-catenin pathway and changed the related gene expression and β-catenin protein location in OB cells, promoting cell proliferation. Ca2+ supplementation (2 mmol/L) reversed the expression levels of genes and proteins related to the canonical Wnt/β-catenin pathway.
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Affiliation(s)
- Jinming Wang
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Jiarong Yang
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Xiaofang Cheng
- College of Arts and Sciences , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Fengfeng Yin
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Yangfei Zhao
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Yaya Zhu
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Zipeng Yan
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Forouzan Khodaei
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Mohammad Mehdi Ommati
- College of Life Sciences , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Ram Kumar Manthari
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
| | - Jundong Wang
- College of Animal Science and Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
- Shanxi Key Laboratory of Environmental Veterinary Medicine , Shanxi Agricultural University , Taigu , 030801 Shanxi , P. R. China
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Grünblatt E, Nemoda Z, Werling AM, Roth A, Angyal N, Tarnok Z, Thomsen H, Peters T, Hinney A, Hebebrand J, Lesch K, Romanos M, Walitza S. The involvement of the canonical Wnt-signaling receptor LRP5 and LRP6 gene variants with ADHD and sexual dimorphism: Association study and meta-analysis. Am J Med Genet B Neuropsychiatr Genet 2019; 180:365-376. [PMID: 30474181 PMCID: PMC6767385 DOI: 10.1002/ajmg.b.32695] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 03/06/2018] [Revised: 09/27/2018] [Accepted: 10/05/2018] [Indexed: 02/05/2023]
Abstract
Wnt-signaling is one of the most abundant pathways involved in processes such as cell-proliferation, -polarity, and -differentiation. Altered Wnt-signaling has been linked with several neurodevelopmental disorders including attention-deficit/hyperactivity disorder (ADHD) as well as with cognitive functions, learning and memory. Particularly, lipoprotein receptor-related protein 5 (LRP5) or LRP6 coreceptors, responsible in the activation of the canonical Wnt-pathway, were associated with cognitive alterations in psychiatric disorders. Following the hypothesis of Wnt involvement in ADHD, we investigated the association of genetic variations in LRP5 and LRP6 genes with three independent child and adolescent ADHD (cADHD) samples (total 2,917 participants), followed by a meta-analysis including previously published data. As ADHD is more prevalent in males, we stratified the analysis according to sex and compared the results with the recent ADHD Psychiatric Genomic Consortium (PGC) GWAS. Meta-analyzing our data including previously published cADHD studies, association of LRP5 intronic rs4988319 and rs3736228 (Ala1330Val) with cADHD was observed among girls (OR = 1.80 with 95% CI = 1.07-3.02, p = .0259; and OR = 2.08 with 95% CI = 1.01-4.46, p = .0026, respectively), whereas in boys association between LRP6 rs2302685 (Val1062Ile) and cADHD was present (OR = 1.66, CI = 1.20-2.31, p = .0024). In the PGC-ADHD dataset (using pooled data of cADHD and adults) tendency of associations were observed only among females with OR = 1.09 (1.02-1.17) for LRP5 rs3736228 and OR = 1.18 (1.09-1.25) for LRP6 rs2302685. Together, our findings suggest a potential sex-specific link of cADHD with LRP5 and LRP6 gene variants, which could contribute to the differences in brain maturation alterations in ADHD affected boys and girls, and suggest possible therapy targets.
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Affiliation(s)
- Edna Grünblatt
- Department of Child and Adolescent Psychiatry and PsychotherapyUniversity Hospital of Psychiatry Zurich, University of ZurichZurichSwitzerland
- Neuroscience Center ZurichUniversity of Zurich and ETH ZurichZurichSwitzerland
- Zurich Center for Integrative Human PhysiologyUniversity of ZurichZurichSwitzerland
| | - Zsofia Nemoda
- Institute of Medical ChemistryMolecular Biology and Pathobiochemistry, Semmelweis UniversityBudapestHungary
- Molecular Psychiatry Research GroupMTA‐SE NAP‐B, Hungarian Academy of SciencesBudapestHungary
| | - Anna Maria Werling
- Department of Child and Adolescent Psychiatry and PsychotherapyUniversity Hospital of Psychiatry Zurich, University of ZurichZurichSwitzerland
| | - Alexander Roth
- Department of Child and Adolescent Psychiatry and PsychotherapyUniversity Hospital of Psychiatry Zurich, University of ZurichZurichSwitzerland
| | - Nora Angyal
- Institute of Medical ChemistryMolecular Biology and Pathobiochemistry, Semmelweis UniversityBudapestHungary
| | - Zsanett Tarnok
- Vadaskert Child and Adolescent Psychiatric HospitalBudapestHungary
| | - Hauke Thomsen
- Division of Molecular Genetic Epidemiology (C050)German Cancer Research Center (DKFZ)HeidelbergGermany
| | - Triinu Peters
- Department of Child and Adolescent PsychiatryPsychosomatics and Psychotherapy, University of Duisburg‐Essen, University Hospital EssenEssenGermany
| | - Anke Hinney
- Department of Child and Adolescent PsychiatryPsychosomatics and Psychotherapy, University of Duisburg‐Essen, University Hospital EssenEssenGermany
| | - Johannes Hebebrand
- Department of Child and Adolescent PsychiatryPsychosomatics and Psychotherapy, University of Duisburg‐Essen, University Hospital EssenEssenGermany
| | - Klaus‐Peter Lesch
- Division of Molecular PsychiatryCenter of Mental Health, University of WuezburgWuerzburgGermany
- Laboratory of Psychiatric NeurobiologyInstitute of Molecular Medicine, I. M. Sechenov First Moscow State Medical UniversityMoscowRussia
- Department of Neuroscience, School of Mental Health and NeuroscienceMaastricht UniversityMaastrichtThe Netherlands
| | - Marcel Romanos
- Center of Mental Health, Department of Child and Adolescent PsychiatryPsychosomatics and Psychotherapy, University Hospital of WuerzburgWuerzburgGermany
| | - Susanne Walitza
- Department of Child and Adolescent Psychiatry and PsychotherapyUniversity Hospital of Psychiatry Zurich, University of ZurichZurichSwitzerland
- Neuroscience Center ZurichUniversity of Zurich and ETH ZurichZurichSwitzerland
- Zurich Center for Integrative Human PhysiologyUniversity of ZurichZurichSwitzerland
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Adabi E, Omidfar A, Farahani NA, Faghihi F, Asghar Malek Hosseini SA, Maghbooli Z, Shirvani A. The association of LRP5 (rs556442) polymorphism with body composition and obesity in postmenopausal women. Diabetes Metab Syndr 2019; 13:2381-2385. [PMID: 31405647 DOI: 10.1016/j.dsx.2019.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 05/06/2019] [Accepted: 06/07/2019] [Indexed: 10/26/2022]
Abstract
AIM The main of this study was to investigate the association between the rs566442 (V1119V) coding polymorphism of Low-density lipoprotein receptor-related protein 5 (LRP5) with obesity and basal metabolic rate in Iranian postmenopausal women. METHODS This cross-sectional study was performed on 350 postmenopausal women with a mean age of 57.8 years (SD ± 6.14). Body composition was analyzed by bioelectrical impedance analysis (BIA) resistance. Obesity was defined based on Body mass index (BMI) ≥30 kg/m2. To determine the genotype of SNP (rs556442), PCR-RFLP assay was performed and confirmed by sequencing. DNA samples from participants were genotyped using the RFLP-PCR method. RESULTS Among the study population 37.1% (130) were obese. G allele had minor-allele frequency of 0.38% in our population. The frequency of genotypes in our study population was 12.9% (45 person) GG, 35.7% (125 person) AA and 51.4% (180) GA. After adjusting age and menopausal age, only basal metabolic rate showed significantly higher in GG group compare to other groups (p = 0.02). Our data showed basal metabolic rate was higher in obese women with GG genotype in comparison to obese women with AG and AA genotypes. DISCUSSION The findings of this study suggest that the GG genotype of SNP (rs556442) could protective role in obese women through the association with BMR.
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Affiliation(s)
- Elham Adabi
- Tehran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Omidfar
- Student Research Committee, Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Fatemeh Faghihi
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | | | - Zhila Maghbooli
- Multiple Sclerosis Research Center, Neurosciences Institute of Tehran University of Medical Sciences, Tehran, Iran.
| | - Arash Shirvani
- Department of Medicine, Section of Endocrinology, Nutrition, and Diabetes, Vitamin D, Skin and Bone Research Laboratory, Boston University Medical Center, Boston, MA, USA.
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Badimon L, Casaní L, Camino-Lopez S, Juan-Babot O, Borrell-Pages M. GSK3β inhibition and canonical Wnt signaling in mice hearts after myocardial ischemic damage. PLoS One 2019; 14:e0218098. [PMID: 31220102 PMCID: PMC6586285 DOI: 10.1371/journal.pone.0218098] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 10/31/2018] [Accepted: 05/25/2019] [Indexed: 12/22/2022] Open
Abstract
Aims Myocardial infarction induces myocardial injury and tissue damage. During myocardial infarction strong cellular response is initiated to salvage the damaged tissues. This response is associated with the induction of different signaling pathways. Of these, the canonical Wnt signaling is increasingly important for its prosurvival cellular role, making it a good candidate for the search of new molecular targets to develop therapies to prevent heart failure in infarcted patients. Methods Herein we report that GSK3β regulates the canonical Wnt signaling in C57Bl6 mice hearts. GSK3β is a canonical Wnt pathway inhibitor. Using GSK3β inhibitors and inducing myocardial injury (MI) in Lrp5-/- mice model we show that GSK3β phosphorylation levels regulate downstream canonical Wnt pathway genes in the ischemic heart. In the setting of MI, myocardial damage assessment usually correlates with functional and clinical outcomes. Therefore, we measured myocardial injury size in Wt and Lrp5-/- mice in the presence and absence of two different GSK3 inhibitors prior to MI. Myocardial injury was independent of GSK3 inhibitor treatments and GSK3β expression levels. Results These studies support a central role for GSK3β in the activation of the canonical Wnt pathway in the Wt heart. Although LRP5 is protective against myocardial injury, GSK3β expression levels do not regulate heart damage.
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Affiliation(s)
- Lina Badimon
- Cardiovascular Program ICCC, Institut de Recerca de l’-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- CIBER-CV, Instituto de Salud Carlos III, Madrid, Spain
- Cardiovascular Research Chair, UAB, Barcelona, Spain
| | - Laura Casaní
- Cardiovascular Program ICCC, Institut de Recerca de l’-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Sandra Camino-Lopez
- Cardiovascular Program ICCC, Institut de Recerca de l’-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Oriol Juan-Babot
- Cardiovascular Program ICCC, Institut de Recerca de l’-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Maria Borrell-Pages
- Cardiovascular Program ICCC, Institut de Recerca de l’-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- CIBER-CV, Instituto de Salud Carlos III, Madrid, Spain
- * E-mail:
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MONTAZERI-NAJAFABADY N, DABBAGHMANESH MH, MOHAMMADIAN AMIRI R, BAKHSHAYESHKARAM M, RANJBAR OMRANI G. Influence of LRP5 (rs556442) polymorphism on insulin resistance in healthy Iranian
children and adolescents. Turk J Med Sci 2019; 49:490-496. [PMID: 30866603 PMCID: PMC7018221 DOI: 10.3906/sag-1809-107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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] [Indexed: 12/20/2022] Open
Abstract
Background/aim Genetic aspects play a role in insulin resistance in children. In this study, for the first time, the association of LRP5 (rs556442) polymorphism and insulin resistance in Iranian children and adolescents was investigated. Materials and methods The study population comprises children and adolescents aged 9–18 years. Anthropometric and biochemical parameters were assessed. Insulin resistance/sensitivity was determined by the quantitative insulin sensitivity check index (QUICKI), homeostasis model assessment-insulin resistance (HOMA-IR), insulin-to-glucose ratio, McAuley index, revised McAuley index, fasting insulin resistance index (FIRI), and Bennett’s index. LRP5 (rs566442) single nucleotide polymorphism (SNP) was identified using restriction fragment length polymorphism (RFLP). Linear regression analysis was used to determine the association between the LRP5 polymorphism (rs556442) and insulin sensitivity indexes. Results Significant differences were found between GG genotype vs. AG/AA genotypes for McAuley index (P = 0.049) and revised McAuley index (P = 0.044) when adjusted for interaction factors (age, sex, and puberty) in regression models. No significant association was found between LRP5 (rs566442) and other insulin resistance indexes. Also, LRP5 (rs566442) did not show a significant impact on biochemical parameters. Conclusion This study showed that LRP5 polymorphism (rs556442) was associated with insulin resistance in Iranian children and adolescents.
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Affiliation(s)
- Nima MONTAZERI-NAJAFABADY
- Endocrinology and Metabolism Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, ShirazIran
| | - Mohammad Hossein DABBAGHMANESH
- Endocrinology and Metabolism Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, ShirazIran
- * To whom correspondence should be addressed. E-mail:
| | - Rajeeh MOHAMMADIAN AMIRI
- Endocrinology and Metabolism Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, ShirazIran
| | | | - Gholamhossein RANJBAR OMRANI
- Endocrinology and Metabolism Research Center, Nemazee Hospital, Shiraz University of Medical Sciences, ShirazIran
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Kang KS, Hong JM, Horan DJ, Lim KE, Bullock WA, Bruzzaniti A, Hann S, Warman ML, Robling AG. Induction of Lrp5 HBM-causing mutations in Cathepsin-K expressing cells alters bone metabolism. Bone 2019; 120:166-175. [PMID: 30409757 PMCID: PMC6360125 DOI: 10.1016/j.bone.2018.10.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 01/10/2018] [Revised: 09/06/2018] [Accepted: 10/08/2018] [Indexed: 12/19/2022]
Abstract
High-bone-mass (HBM)-causing missense mutations in the low density lipoprotein receptor-related protein-5 (Lrp5) are associated with increased osteoanabolic action and protection from disuse- and ovariectomy-induced osteopenia. These mutations (e.g., A214V and G171V) confer resistance to endogenous secreted Lrp5/6 inhibitors, such as sclerostin (SOST) and Dickkopf homolog-1 (DKK1). Cells in the osteoblast lineage are responsive to canonical Wnt stimulation, but recent work has indicated that osteoclasts exhibit both indirect and direct responsiveness to canonical Wnt. Whether Lrp5-HBM receptors, expressed in osteoclasts, might alter osteoclast differentiation, activity, and consequent net bone balance in the skeleton, is not known. To address this, we bred mice harboring heterozygous Lrp5 HBM-causing conditional knock-in alleles to Ctsk-Cre transgenic mice and studied the phenotype using DXA, μCT, histomorphometry, serum assays, and primary cell culture. Mice with HBM alleles induced in Ctsk-expressing cells (TG) exhibited higher bone mass and architectural properties compared to non-transgenic (NTG) counterparts. In vivo and in vitro measurements of osteoclast activity, population density, and differentiation yielded significant reductions in osteoclast-related parameters in female but not male TG mice. Droplet digital PCR performed on osteocyte enriched cortical bone tubes from TG and NTG mice revealed that ~8-17% of the osteocyte population (depending on sex) underwent recombination of the conditional Lrp5 allele in the presence of Ctsk-Cre. Further, bone formation parameters in the midshaft femur cortex show a small but significant increase in anabolic action on the endocortical but not periosteal surface. These findings suggest that Wnt/Lrp5 signaling in osteoclasts affects osteoclastogenesis and activity in female mice, but also that some of the changes in bone mass in TG mice might be due to Cre expression in the osteocyte population.
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Affiliation(s)
- Kyung Shin Kang
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA; Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA; School of Physical Science & Engineering, Anderson University, Anderson, IN, USA
| | - Jung Min Hong
- Department of Biomedical & Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Daniel J Horan
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Kyung-Eun Lim
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Whitney A Bullock
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Angela Bruzzaniti
- Department of Biomedical & Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN, USA
| | - Steven Hann
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, MA, USA
| | - Matthew L Warman
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, MA, USA; Howard Hughes Medical Institute, Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Alexander G Robling
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, Indianapolis, IN, USA; Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA; Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis, Indianapolis, IN, USA.
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Kamiński A, Karasiewicz M, Bogacz A, Dziekan K, Seremak-Mrozikiewicz A, Czerny B. The importance of the Wnt/β-catenin pathway and LRP5 protein in bone metabolism of postmenopausal women. ADV CLIN EXP MED 2019; 28:179-184. [PMID: 29963786 DOI: 10.17219/acem/79969] [Citation(s) in RCA: 5] [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: 11/24/2022]
Abstract
BACKGROUND Postmenopausal osteoporosis is the most common metabolic bone disease among women. The Wnt signaling pathway has been known to be the critical regulator of osteoblastogenesis. Alterations in this mechanism may have consequences for bone remodeling in humans. OBJECTIVES The aim of the study was to evaluate the frequency of genotypes and alleles of single nucleotide polymorphism (SNP) rs4988321 and rs312009 of LRP5 in Polish postmenopausal women with osteopenia (n = 109) and osteoporosis (n = 333). Potential correlations between genetic polymorphisms, bone mineral density (BMD), risk for bone fractures, and other clinical parameters were analyzed. MATERIAL AND METHODS Genomic DNA was extracted from the blood samples and the sequence polymorphisms of LRP5 gene were detected using real-time polymerase chain reaction (RT-PCR) methods with melting curve analysis. We also calculated the odds ratio (OR) for the LRP5 genotypes and the alleles. Then, we evaluated the effect of the LRP5 polymorphism on T-score, Z-score, L2L4AM, L2L4YA, L2L4BMD, body mass index (BMI), and other clinical parameters. RESULTS No statistically significant differences in the distribution of LRP5 rs312009 genotypes between the groups were observed. Furthermore, our findings indicate that there is no correlation between LRP5 genotypes and the clinical characteristics of women with osteopenia/osteoporosis. In contrast, there was an increased value of OR in heterozygotes for rs4988321, both in patients with osteopenia (OR = 1.47) and in those with osteoporosis (OR = 1.33). In our study, we were not able to calculate the OR parameter for the AA genotype due to its low prevalence in the population. CONCLUSIONS Our results suggest that the Val667Met LRP5 (rs312009) polymorphism may contribute to an elevated risk for fractures in postmenopausal Polish women.
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Affiliation(s)
- Adam Kamiński
- Department of Orthopedics and Traumatology, Independent Public Clinical Hospital No. 1, Pomeranian Medical University in Szczecin, Poland
| | - Monika Karasiewicz
- Laboratory of International Health, Department of Preventive Medicine, Poznan University of Medical Sciences, Poland
| | - Anna Bogacz
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Plewiska, Poland
- Department of Histocompatibility with Laboratory of Genetic Diagnostics, Regional Blood Center, Poznań, Poland
| | - Karolina Dziekan
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Plewiska, Poland
| | - Agnieszka Seremak-Mrozikiewicz
- Division of Perinatology and Women's Diseases, Poznan University of Medical Sciences, Poland
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants, Plewiska, Poland
| | - Bogusław Czerny
- Department of Stem Cells and Regenerative Medicine, Institute of Natural Fibres and Medicinal Plants, Plewiska, Poland
- Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University in Szczecin, Poland
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Mammoto A, Muyleart M, Mammoto T. LRP5 in age-related changes in vascular and alveolar morphogenesis in the lung. Aging (Albany NY) 2019; 11:89-103. [PMID: 30612120 PMCID: PMC6339783 DOI: 10.18632/aging.101722] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 12/12/2018] [Indexed: 04/20/2023]
Abstract
Aging is associated with impaired angiogenesis and lung alveolar regeneration, which contributes to the increased susceptibility to chronic lung diseases (CLD). We have reported that the Wnt ligand co-receptor, low-density lipoprotein receptor-related protein 5 (LRP5), stimulates angiogenesis and lung alveolar regeneration. However, the role of LRP5 in age-related decline in vascular and alveolar morphogenesis remains unclear. In this report, we have demonstrated that vascular and alveolar structures are disrupted in the 24-month (24M) old mouse lungs. The expression of LRP5 and the major angiogenic factors, VEGFR2 and Tie2, is lower in endothelial cells (ECs) isolated from 24M old mouse lungs compared to those from 2M old mouse lungs. Vascular and alveolar formation is attenuated in the hydrogel implanted on the 24M old mouse lungs, while overexpression of LRP5, which restores angiogenic factor expression, reverses vascular and alveolar morphogenesis in the gel. Compensatory lung growth after unilateral pneumonectomy is inhibited in 24M old mice, which is reversed by overexpression of LRP5. These results suggest that LRP5 mediates age-related inhibition of angiogenesis and alveolar morphogenesis. Modulation of LRP5 may be a novel intervention to rejuvenate regenerative ability in aged lung and will lead to the development of efficient strategies for aging-associated CLD.
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Affiliation(s)
- Akiko Mammoto
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226USA
- Equal contribution
| | - Megan Muyleart
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI 53226USA
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226USA
| | - Tadanori Mammoto
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI 53226USA
- Equal contribution
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Bernardes M, Durães C, Oliveira A, Martins MJ, Lucas R, Costa L, Pereira JG, Ramos I, Machado JC, Simões-Ventura F. LRP5 gene polymorphisms and radiographic joint damage in rheumatoid arthritis patients. Osteoporos Int 2018; 29:2355-2368. [PMID: 30019084 DOI: 10.1007/s00198-018-4625-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 11/15/2017] [Accepted: 06/27/2018] [Indexed: 01/01/2023]
Abstract
UNLABELLED Rheumatoid arthritis (RA) is characterized by increased bone resorption and impaired bone formation. Osteoblast function is regulated by the canonical LRP5/Wnt/β-catenin pathway. Bone mineral density and RA joint destruction are partially inherited. In line with this, we found significant associations between LRP5 SNPs (p.A1330V, p.N740N, p.V667M) and RA radiographic damage severity. INTRODUCTION Increased bone resorption and impaired bone formation characterize rheumatoid arthritis (RA). Canonical Wnt/β-catenin pathway, signalled by lipoprotein receptor-related protein-5 (LRP5), regulates osteoblast function. Since bone mineral density (BMD) and RA joint destruction are partially inherited, we studied their association with LRP5 single nucleotide polymorphisms (SNPs). METHODS Clinical data and peripheral blood for biomarkers assessment and LRP5 genotyping were collected from 208 RA patients. Hands and feet X-rays were scored [modified Sharp/van der Heijde Score (SHS), joint space narrowing (JSN), and erosion scores]. Lumbar spine, total left proximal femur, and left hand BMD were assessed by dual-energy X-ray absorptiometry (DXA). RESULTS TT genotypes for p.A1330V and p.N740N LRP5 SNPs associated with total SHS, erosion score, and hands erosion score; the same for p.A1330V with feet JSN score and p.N740N with hands total score. AG genotype for p.V667M associated with sclerostin and hands JSN score. Femoral BMD associated with TC genotype for p.N740N. Multiple test correction precluded a few of these associations. Among V667M-N740N-A1330V haplotypes: GTT associated with higher feet JSN score (OR = 3.80; p = 0.016) and ATT with higher JSN score (OR = 4.60; p = 0.032), hands total score (OR = 5.65; p = 0.022), and total SHS (OR = 6.74; p = 0.024). CONCLUSION Significant associations between LRP5 SNPs (p.A1330V, p.N740N, and p.V667M) and the severity of radiographic damage reinforce the evidence of bone destruction heritability in RA.
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Affiliation(s)
- M Bernardes
- Department of Rheumatology, São João Hospital Centre, Porto, Portugal.
- Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal.
| | - C Durães
- IPATIMUP - Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3s), University of Porto, Porto, Portugal
| | - A Oliveira
- Department of Nuclear Medicine, São João Hospital Centre, Porto, Portugal
| | - M J Martins
- Instituto de Investigação e Inovação em Saúde (i3s), University of Porto, Porto, Portugal
- Unit of Biochemisty, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
| | - R Lucas
- EPIUnit-Institute of Public Health, University of Porto, Porto, Portugal
- Department of Clinical Epidemiology, Predictive Medicine and Public Health, Faculty of Medicine, University of Porto, Porto, Portugal
| | - L Costa
- Department of Rheumatology, São João Hospital Centre, Porto, Portugal
| | - J G Pereira
- Department of Nuclear Medicine, São João Hospital Centre, Porto, Portugal
| | - I Ramos
- Department of Medicine, Faculty of Medicine, University of Porto, Porto, Portugal
- Department of Radiology, São João Hospital Centre, Porto, Portugal
| | - J C Machado
- IPATIMUP - Institute of Molecular Pathology and Immunology, University of Porto, Porto, Portugal
- Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
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Souza KSCD, Ururahy MAG, Oliveira YMDC, Loureiro MB, Silva HPVD, Bortolin RH, Luchessi AD, Arrais RF, Hirata RDC, Almeida MDG, Hirata MH, Rezende AAD. The low-density lipoprotein receptor-related protein 5 (LRP5) 4037C>T polymorphism: candidate for susceptibility to type 1 diabetes mellitus. Arch Endocrinol Metab 2018; 62:480-484. [PMID: 30304114 PMCID: PMC10118729 DOI: 10.20945/2359-3997000000057] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 05/09/2018] [Indexed: 04/22/2023]
Abstract
OBJECTIVE The present study has investigated the association between low-density lipoprotein receptor-related protein 5 (LRP5) 4037C>T polymorphism and type 1 diabetes mellitus (T1DM) susceptibility in a Brazilian population. SUBJECTS AND METHODS A total number of 134 T1DM patients and 180 normoglycemic individuals (NG) aged 6-20 years were studied. Glycated hemoglobin and glucose levels were determined. Genotyping of LRP5 4037C>T (rs3736228) was performed. RESULTS T1DM patients showed poor glycemic control. Genotypes in the codominant (CT: OR = 2.99 [CI 95%: 1.71-5.24], p < 0.001; TT: OR = 5.34 [CI 95%: 1.05-2702], p < 0.001), dominant (CT + TT: OR = 3.16 [CI 95%: 1.84-5.43], p < 0.001) and log-additive (OR = 2.78 [CI 95%: 1.70-4.52], p < 0.001) models, and LRP5 4037T allele (OR = 2.88, [CI 95%: 1.78-4.77], p < 0.001) were associated with an increased risk of developing T1DM. LRP5 4037CT and CT+TT carriers in T1DM group showed higher concentrations of serum glucose and glycated hemoglobin when compared with CC carriers. CONCLUSION The LRP5 4037C>T may represent a candidate for T1DM susceptibility, as well as poor glycemic control.
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Affiliation(s)
- Karla Simone Costa de Souza
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | - Marcela Abbott Galvão Ururahy
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | - Yonara Monique da Costa Oliveira
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
- Centro de Educação e Saúde, Universidade Federal de Campina Grande (UFCG), Cuité, PB, Brasil
| | - Melina Bezerra Loureiro
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | | | - Raul Hernandes Bortolin
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | - André Ducati Luchessi
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | - Ricardo Fernando Arrais
- Departamento de Pediatria, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | | | - Maria das Graças Almeida
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
| | - Mário Hiroyuki Hirata
- Departamento de Análises Clínicas e Toxicológicas, Universidade de São Paulo (USP), São Paulo, SP, Brasil
| | - Adriana Augusto de Rezende
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN, Brasil
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Abstract
PURPOSE OF REVIEW The goal of this review is to highlight some of the considerations involved in creating animal models to study rare bone diseases and then to compare and contrast approaches to creating such models, focusing on the advantages and novel opportunities offered by the CRISPR-Cas system. RECENT FINDINGS Gene editing after creation of double-stranded breaks in chromosomal DNA is increasingly being used to modify animal genomes. Multiple tools can be used to create such breaks, with the newest ones being based on the bacterial adaptive immune system known as CRISPR/Cas. Advances in gene editing have increased the ease and speed, while reducing the cost, of creating novel animal models of disease. Gene editing has also expanded the number of animal species in which genetic modification can be performed. These changes have significantly increased the options for investigators seeking to model rare bone diseases in animals.
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Affiliation(s)
- Charles A O'Brien
- Division of Endocrinology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
- Central Arkansas Veterans Healthcare System, Little Rock, AR, USA.
| | - Roy Morello
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Physiology and Biophysics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Division of Genetics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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Butscheidt S, Delsmann A, Rolvien T, Barvencik F, Al-Bughaili M, Mundlos S, Schinke T, Amling M, Kornak U, Oheim R. Mutational analysis uncovers monogenic bone disorders in women with pregnancy-associated osteoporosis: three novel mutations in LRP5, COL1A1, and COL1A2. Osteoporos Int 2018; 29:1643-1651. [PMID: 29594386 DOI: 10.1007/s00198-018-4499-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 01/09/2018] [Accepted: 03/20/2018] [Indexed: 12/14/2022]
Abstract
UNLABELLED Pregnancy was found to be a skeletal risk factor promoting the initial onset of previously unrecognized monogenic bone disorders, thus explaining a proportion of cases with pregnancy-associated osteoporosis. Therapeutic measures should focus in particular on the normalization of the disturbed calcium homeostasis in order to enable the partial skeletal recovery. INTRODUCTION Pregnancy-associated osteoporosis (PAO) is a rare skeletal condition, which is characterized by a reduction in bone mineral density (BMD) in the course of pregnancy and lactation. Typical symptoms include vertebral compression fractures and transient osteoporosis of the hip. Since the etiology is not well understood, this prospective study was conducted in order to elucidate the relevance of pathogenic gene variants for the development of PAO. METHODS Seven consecutive cases with the diagnosis of PAO underwent a skeletal assessment (blood tests, DXA, HR-pQCT) and a comprehensive genetic analysis using a custom-designed gene panel. RESULTS All cases showed a reduced BMD (DXA T-score, lumbar spine - 3.2 ± 1.0; left femur - 2.2 ± 0.5; right femur - 1.9 ± 0.5), while the spine was affected more severely (p < 0.05). The trabecular and cortical thickness was overall reduced in HR-pQCT, while the trabecular number showed no alterations in most cases. The genetic analysis revealed three novel mutations in LRP5, COL1A1, and COL1A2. CONCLUSION Our data show that previously unrecognized monogenic bone disorders play an important role in PAO. Pregnancy should be considered a skeletal risk factor, which can promote the initial clinical onset of such skeletal disorders. The underlying increased calcium demand is essential in terms of prophylactic and therapeutic measures, which are especially required in individuals with a genetically determined low bone mass. The implementation of this knowledge in clinical practice can enable the partial recovery of the skeleton. Consistent genetic studies are needed to analyze the frequency of pathogenic variants in women with PAO.
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Affiliation(s)
- S Butscheidt
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - A Delsmann
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - T Rolvien
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
- Department of Orthopedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - F Barvencik
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - M Al-Bughaili
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - S Mundlos
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - T Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - M Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany
| | - U Kornak
- Institute of Medical Genetics and Human Genetics, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin-Brandenburg Center for Regenerative Therapies, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Max Planck Institute for Molecular Genetics, FG Development and Disease, Berlin, Germany
| | - R Oheim
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Lottestr. 59, 22529, Hamburg, Germany.
- National Bone Board, Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Yorgan T, David JP, Amling M, Schinke T. The high bone mass phenotype of Lrp5-mutant mice is not affected by megakaryocyte depletion. Biochem Biophys Res Commun 2018; 497:659-666. [PMID: 29454962 DOI: 10.1016/j.bbrc.2018.02.127] [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: 02/12/2018] [Accepted: 02/14/2018] [Indexed: 11/18/2022]
Abstract
Bone remodeling is a continuously ongoing process mediated by bone-resorbing osteoclasts and bone-forming osteoblasts. One key regulator of bone formation is the putative Wnt co-receptor Lrp5, where activating mutations in the extracellular domain cause increased bone formation in mice and humans. We have previously reported that megakaryocyte numbers are increased the bone marrow of mice carrying a high bone mass mutation (HBM) of Lrp5 (Lrp5G170V). Since megakaryocytes can promote bone formation, we addressed the question, if the bone remodeling phenotype of Lrp5G170V mice is affected by megakaryocyte depletion. For that purpose we took advantage of a mouse model carrying a mutation of the Mpl gene, encoding the thrombopoietin receptor. These mice (Mplhlb219) were crossed with Lrp5G170V mice to generate animals carrying both mutations in a homozygous state. Using μCT, undecalcified histology and bone-specific histomorphometry of 12 weeks old littermates we observed that megakaryocyte number was remarkably decreased in Mplhlb219/Lrp5G170V mice, yet the high bone mass phenotype of Lrp5G170V mice was not significantly affected by the homozygous Mpl mutation. Finally, when we analyzed 24 weeks old wildtype and Mplhlb219 mice we did not observe a statistically significant alteration of bone remodeling in the latter ones. Taken together, our results demonstrate that an increased number of bone marrow megakaryocytes does not contribute to the increased bone formation caused by Lrp5 activation.
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Affiliation(s)
- Timur Yorgan
- Department of Osteology and Biomechanics, University Medical Center Hamburg Eppendorf, Hamburg 20246, Germany
| | - Jean-Pierre David
- Department of Osteology and Biomechanics, University Medical Center Hamburg Eppendorf, Hamburg 20246, Germany
| | - Michael Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg Eppendorf, Hamburg 20246, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg Eppendorf, Hamburg 20246, Germany.
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Xiao Q, Wu J, Wang WJ, Chen S, Zheng Y, Yu X, Meeth K, Sahraei M, Bothwell ALM, Chen L, Bosenberg M, Chen J, Sexl V, Sun L, Li L, Tang W, Wu D. DKK2 imparts tumor immunity evasion through β-catenin-independent suppression of cytotoxic immune-cell activation. Nat Med 2018; 24:262-270. [PMID: 29431745 PMCID: PMC5840007 DOI: 10.1038/nm.4496] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [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: 03/07/2017] [Accepted: 01/12/2018] [Indexed: 12/11/2022]
Abstract
Immunotherapy offers new options for cancer treatment, but efficacy varies across cancer types. Colorectal cancers (CRCs) are largely refractory to immune-checkpoint blockade, which suggests the presence of yet uncharacterized immune-suppressive mechanisms. Here we report that the loss of adenomatosis polyposis coli (APC) in intestinal tumor cells or of the tumor suppressor PTEN in melanoma cells upregulates the expression of Dickkopf-related protein 2 (DKK2), which, together with its receptor LRP5, provides an unconventional mechanism for tumor immune evasion. DKK2 secreted by tumor cells acts on cytotoxic lymphocytes, inhibiting STAT5 signaling by impeding STAT5 nuclear localization via LRP5, but independently of LRP6 and the Wnt-β-catenin pathway. Genetic or antibody-mediated ablation of DKK2 activates natural killer (NK) cells and CD8+ T cells in tumors, impedes tumor progression, and enhances the effects of PD-1 blockade. Thus, we have identified a previously unknown tumor immune-suppressive mechanism and immunotherapeutic targets particularly relevant for CRCs and a subset of melanomas.
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Affiliation(s)
- Qian Xiao
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
| | - Jibo Wu
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of sciences, Shanghai 200031, China
| | - Wei-Jia Wang
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
| | - Shiyang Chen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yingxia Zheng
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
| | - Xiaoqing Yu
- Biostatistics Department, Yale University, New Haven, CT 06520
| | - Katrina Meeth
- Departments of Dermatology and Pathology, Yale School of Medicine, New Haven, CT 06520
| | - Mahnaz Sahraei
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
| | - Alfred L. M. Bothwell
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520
- Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520
| | - Lieping Chen
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520
- Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520
| | - Marcus Bosenberg
- Departments of Dermatology and Pathology, Yale School of Medicine, New Haven, CT 06520
- Yale Cancer Center, Yale School of Medicine, New Haven, CT 06520
| | - Jianfeng Chen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences; University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Veronika Sexl
- Institute of Pharmacology and Toxicology, Department for Biomedical Sciences, University of Veterinary Medicine Vienna, Vienna, Austria
| | | | - Lin Li
- State Key Laboratory of Molecular Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of sciences, Shanghai 200031, China
| | - Wenwen Tang
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
| | - Dianqing Wu
- Vascular Biology and Therapeutic Program and Department of Pharmacology, Yale School of Medicine, New Haven, CT 06520
- Department of Immunobiology, Yale School of Medicine, New Haven, CT 06520
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Lin Y, Gao H, Chen C, Zhu Y, Li T, Liu B, Ma C, Jiang H, Li Y, Huang Y, Wu Q, Li H, Liang X, Jin C, Ye J, Huang X, Lu L. Clinical and next-generation sequencing findings in a Chinese family exhibiting severe familial exudative vitreoretinopathy. Int J Mol Med 2018; 41:773-782. [PMID: 29207047 PMCID: PMC5752179 DOI: 10.3892/ijmm.2017.3308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 07/03/2017] [Accepted: 11/28/2017] [Indexed: 11/23/2022] Open
Abstract
Familial exudative vitreoretinopathy (FEVR) is a rare hereditary retinal disorder characterized by the premature arrest of vascularization in the peripheral retina. The aim of the present study was to characterize the clinical presentations of a Chinese family affected by bilateral severe FEVR, and to identify the underlying genetic variations. One family that presented with bilateral FEVR was recruited for this study. Comprehensive ophthalmic examinations, including best‑corrected visual acuity, slit‑lamp examination, fundus photography, fundus fluorescein angiography imaging and electroretinogram were performed. Genomic DNA was extracted from leukocytes of the peripheral blood collected from the affected and unaffected family members, as well as 200 unrelated control subjects from the same population. Next‑generation sequencing of the candidate genes associated with ocular diseases was performed, and the identified mutations were validated by conventional polymerase chain reaction‑based sequencing. The functional effects of the mutations were analyzed by polymorphism phenotyping (PolyPhen) and sorting intolerant from tolerant (SIFT). One heterozygous ATP binding cassette subfamily A member 4 (ABCA4) c.5693G>A (p.R1898H) mutation in exon 40 and one heterozygous LDL receptor related protein 5 (LRP5) c.260T>G (p.I87S) mutation in exon 2 were identified in this family. To the best of our knowledge, the ABCA4 c.5693G>A (p.R1898H) mutation has not been reported in FEVR, and the LRP5 c.260T>G (p.I87S) mutation is a novel mutation. PolyPhen and SIFT predicted that the amino acid substitution R1898H in protein ABCA4 is benign, whereas the amino acid substitution I87S in protein LRP5 is damaging. A single nucleotide polymorphism c.266A>G (p.Q89R, rs41494349) was identified in exon 2 of LRP5. These findings expand the mutation spectrums of ABCA4 and LRP5, and will be valuable for genetic counseling and development of therapeutic interventions for patients with FEVR.
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Affiliation(s)
- Ying Lin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Hongbin Gao
- Department of Toxicology, School of Public Health and Tropical Medicine, Southern Medical University, Guangzhou, Guangdong 510515
- Guangdong Laboratory Animals Monitoring Institute, Key Laboratory of Guangdong Laboratory Animals, Guangzhou, Guangdong 510663, P.R. China
| | - Chuan Chen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Yi Zhu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
- Department of Molecular and Cellular Pharmacology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Tao Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Bingqian Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Chenghong Ma
- Department of Endocrine, College of Clinical Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong 510080
| | - Hongye Jiang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510000, P.R. China
| | - Yonghao Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Ying Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Qingxiu Wu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Haichun Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Xiaoling Liang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Chenjin Jin
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
| | - Jianhua Ye
- Department of Endocrine, College of Clinical Medicine, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong 510080
| | - Xinhua Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
- Correspondence to: Dr Lin Lu or Dr Xinhua Huang, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, P.R. China, E-mail: , E-mail:
| | - Lin Lu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong 510060
- Correspondence to: Dr Lin Lu or Dr Xinhua Huang, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, 54 South Xianlie Road, Guangzhou, Guangdong 510060, P.R. China, E-mail: , E-mail:
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Pepe J, Bonnet N, Herrmann FR, Biver E, Rizzoli R, Chevalley T, Ferrari SL. Interaction between LRP5 and periostin gene polymorphisms on serum periostin levels and cortical bone microstructure. Osteoporos Int 2018; 29:339-346. [PMID: 29038835 DOI: 10.1007/s00198-017-4272-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 06/05/2017] [Accepted: 10/12/2017] [Indexed: 12/21/2022]
Abstract
UNLABELLED We investigated the interaction between periostin SNPs and the SNPs of the genes assumed to modulate serum periostin levels and bone microstructure in a cohort of postmenopausal women. We identified an interaction between LRP5 SNP rs648438 and periostin SNP rs9547970 on serum periostin levels and on radial cortical porosity. PURPOSE The purpose of this study is to investigate the interaction between periostin gene polymorphisms (SNPs) and other genes potentially responsible for modulating serum periostin levels and bone microstructure in a cohort of postmenopausal women. METHODS In 648 postmenopausal women from the Geneva Retirees Cohort, we analyzed 6 periostin SNPs and another 149 SNPs in 14 genes, namely BMP2, CTNNB1, ESR1, ESR2, LRP5, LRP6, PTH, SPTBN1, SOST, TGFb1, TNFRSF11A, TNFSF11, TNFRSF11B and WNT16. Volumetric BMD and bone microstructure were measured by high-resolution peripheral quantitative computed tomography at the distal radius and tibia. RESULTS Serum periostin levels were associated with radial cortical porosity, including after adjustment for age, BMI, and years since menopause (p = 0.036). Sixteen SNPs in the ESR1, LRP5, TNFRSF11A, SOST, SPTBN1, TNFRSF11B and TNFSF11 genes were associated with serum periostin levels (p range 0.03-0.001) whereas 26 SNPs in 9 genes were associated with cortical porosity at the radius and/or at the tibia. WNT 16 was the gene with the highest number of SNPs associated with both trabecular and cortical microstructure. The periostin SNP rs9547970 was also associated with cortical porosity (p = 0.04). In particular, SNPs in LRP5, ESR1 and near the TNFRSF11A gene were associated with both cortical porosity and serum periostin levels. Eventually, we identified an interaction between LRP5 SNP rs648438 and periostin SNP rs9547970 on serum periostin levels (interaction p = 0.01) and on radial cortical porosity (interaction p = 0.005). CONCLUSION These results suggest that periostin expression is genetically modulated, particularly by polymorphisms in the Wnt pathway, and is thereby implicated in the genetic variation of bone microstructure.
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Affiliation(s)
- J Pepe
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland.
- Department of Internal Medicine and Medical Disciplines, "Sapienza" University of Rome, Viale del Policlinico 155, 00161, Rome, Italy.
| | - N Bonnet
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland
| | - F R Herrmann
- Division of Geriatrics, Department of Internal Medicine, Rehabilitation and Geriatrics, Geneva University Hospitals, University of Geneva, Geneva, Switzerland
| | - E Biver
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland
| | - R Rizzoli
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland
| | - T Chevalley
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland
| | - S L Ferrari
- Division of Bone Diseases, Faculty of Medicine, Geneva University Hospitals, 1205, Geneva, Switzerland
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Roetzer KM, Uyanik G, Brehm A, Zwerina J, Zandieh S, Czech T, Roschger P, Misof BM, Klaushofer K. Novel familial mutation of LRP5 causing high bone mass: Genetic analysis, clinical presentation, and characterization of bone matrix mineralization. Bone 2018; 107:154-160. [PMID: 29208525 DOI: 10.1016/j.bone.2017.12.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 10/11/2017] [Revised: 12/01/2017] [Accepted: 12/01/2017] [Indexed: 12/29/2022]
Abstract
The Wnt signalling pathway is a critical regulator of bone mass and quality. Several heterozygous mutations in the LRP5 gene, a Wnt co-receptor, causing high bone mass (LRP5-HBM) have been described to date. The pathogenic mechanism is thought to be a gain-of-function caused by impaired inhibition of the canonical Wnt signalling pathway, thereby leading to increased bone formation. We report the cases of two affected family members, a 53-year-old mother and her 23-year-old daughter, with high bone mass (T-scores mother: lumbar spine 11.4, femoral neck 10.5; T-scores daughter: lumbar spine 5.4, femoral neck 8.7), increased calvarial thickness, and thickened cortices of the long bones but no history of fractures. Whereas the mother did not show any indications of the mutation, the daughter suffered from congenital hearing impairment resulting in cochlear implantation, recurrent facial palsy, and migraine. In addition, she had stenosis of the foramen magnum. In both individuals, we detected a novel heterozygous duplication of six basepairs in the LRP5 gene, resulting in an insertion of two amino acids, very likely associated with a gain-of-function. When the daughter had part of the occipital bone surgically removed, the bone sample was used for the visualization of bone lamellar structure and bone cells as well as the measurement of bone mineralization density distribution (BMDD). The bone sample revealed two distinctly different regions: an intra-cortical region with osteonal remodeling, typical osteonal lamellar orientation, associated with relatively higher heterogeneity of bone matrix mineralization, and another periosteal region devoid of bone remodeling, with parallel bone lamellae and lower heterogeneity of mineralization. In conclusion, we present data on bone tissue and material level from an LRP5-HBM patient with a novel mutation in the LRP5 gene. Our findings indicate normal morphology of osteoclasts and osteoblasts as well as normal mineralization in skull bone in LRP5-HBM.
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Affiliation(s)
- K M Roetzer
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria; Center for Medical Genetics, Hanusch Hospital, Vienna, Austria; Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - G Uyanik
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria; Center for Medical Genetics, Hanusch Hospital, Vienna, Austria; Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - A Brehm
- 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - J Zwerina
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria; 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - S Zandieh
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria; Department of Radiology and Nuclear Medicine, Hanusch Hospital, Vienna, Austria
| | - T Czech
- Department of Neurosurgery, Medical University of Vienna, Vienna, Austria
| | - P Roschger
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria
| | - B M Misof
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria.
| | - K Klaushofer
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, 1st Medical Department, Hanusch Hospital, Vienna, Austria; 1st Medical Department, Hanusch Hospital, Vienna, Austria
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50
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Solis-Moruno M, de Manuel M, Hernandez-Rodriguez J, Fontsere C, Gomara-Castaño A, Valsera-Naranjo C, Crailsheim D, Navarro A, Llorente M, Riera L, Feliu-Olleta O, Marques-Bonet T. Potential damaging mutation in LRP5 from genome sequencing of the first reported chimpanzee with the Chiari malformation. Sci Rep 2017; 7:15224. [PMID: 29123202 PMCID: PMC5680330 DOI: 10.1038/s41598-017-15544-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 07/13/2017] [Accepted: 10/30/2017] [Indexed: 12/29/2022] Open
Abstract
The genus Pan is the closest related to humans (Homo sapiens) and it includes two species: Pan troglodytes (chimpanzees) and Pan paniscus (bonobos). Different characteristics, some of biomedical aspect, separate them from us. For instance, some common human medical conditions are rare in chimpanzees (menopause, Alzheimer disease) although it is unclear to which extent longevity plays an active role in these differences. However, both humans and chimpanzees present similar pathologies, thus, understanding traits in chimpanzees can help unravel the molecular basis of human conditions. Here, we sequenced the genome of Nico, a central chimpanzee diagnosed with a particular biomedical condition, the Chiari malformation. We performed a variant calling analysis comparing his genome to 25 whole genomes from healthy individuals (bonobos and chimpanzees), and after predicting the effects of the genetic variants, we looked for genes within the OMIM database. We found a novel, private, predicted as damaging mutation in Nico in LRP5, a gene related to bone density alteration pathologies, and we suggest a link between this mutation and his Chiari malformation as previously shown in humans. Our results reinforce the idea that a comparison between humans and chimpanzees can be established in this genetic frame of common diseases.
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Affiliation(s)
- Manuel Solis-Moruno
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain.
| | - Marc de Manuel
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Jessica Hernandez-Rodriguez
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Claudia Fontsere
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Alba Gomara-Castaño
- Fundació Mona, Carretera C-25, s/n, Riudellots de la Selva, 17457, Girona, Spain
| | | | - Dietmar Crailsheim
- Fundació Mona, Carretera C-25, s/n, Riudellots de la Selva, 17457, Girona, Spain
| | - Arcadi Navarro
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
- Catalan Institution of Research and Advanced Studies (ICREA), Passeig de Lluís Companys, 23, Barcelona, 08010, Spain
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, Barcelona, 08028, Spain
| | - Miquel Llorente
- Fundació Mona, Carretera C-25, s/n, Riudellots de la Selva, 17457, Girona, Spain
| | - Laura Riera
- Fundació Mona, Carretera C-25, s/n, Riudellots de la Selva, 17457, Girona, Spain
| | - Olga Feliu-Olleta
- Fundació Mona, Carretera C-25, s/n, Riudellots de la Selva, 17457, Girona, Spain
| | - Tomas Marques-Bonet
- Institut de Biologia Evolutiva (CSIC-UPF), Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain.
- Catalan Institution of Research and Advanced Studies (ICREA), Passeig de Lluís Companys, 23, Barcelona, 08010, Spain.
- CNAG-CRG, Centre for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 4, Barcelona, 08028, Spain.
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