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Harms FL, Rexach JE, Efthymiou S, Aynekin B, Per H, Güleç A, Nampoothiri S, Sampaio H, Sachdev R, Stoeva R, Myers K, Pena LDM, Kalfa TA, Chard M, Klassen M, Pries M, Kutsche K. Loss of TBC1D2B causes a progressive neurological disorder with gingival overgrowth. Eur J Hum Genet 2024; 32:558-566. [PMID: 38374468 PMCID: PMC11061173 DOI: 10.1038/s41431-024-01563-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 01/30/2024] [Accepted: 02/07/2024] [Indexed: 02/21/2024] Open
Abstract
Biallelic loss-of-function variants in TBC1D2B have been reported in five subjects with cognitive impairment and seizures with or without gingival overgrowth. TBC1D2B belongs to the family of Tre2-Bub2-Cdc16 (TBC)-domain containing RAB-specific GTPase activating proteins (TBC/RABGAPs). Here, we report five new subjects with biallelic TBC1D2B variants, including two siblings, and delineate the molecular and clinical features in the ten subjects known to date. One of the newly reported subjects was compound heterozygous for the TBC1D2B variants c.2584C>T; p.(Arg862Cys) and c.2758C>T; p.(Arg920*). In subject-derived fibroblasts, TBC1D2B mRNA level was similar to control cells, while the TBC1D2B protein amount was reduced by about half. In one of two siblings with a novel c.360+1G>T splice site variant, TBC1D2B transcript analysis revealed aberrantly spliced mRNAs and a drastically reduced TBC1D2B mRNA level in leukocytes. The molecular spectrum included 12 different TBC1D2B variants: seven nonsense, three frameshifts, one splice site, and one missense variant. Out of ten subjects, three had fibrous dysplasia of the mandible, two of which were diagnosed as cherubism. Most subjects developed gingival overgrowth. Half of the subjects had developmental delay. Seizures occurred in 80% of the subjects. Six subjects showed a progressive disease with mental deterioration. Brain imaging revealed cerebral and/or cerebellar atrophy with or without lateral ventricle dilatation. The TBC1D2B disorder is a progressive neurological disease with gingival overgrowth and abnormal mandible morphology. As TBC1D2B has been shown to positively regulate autophagy, defects in autophagy and the endolysosomal system could be associated with neuronal dysfunction and the neurodegenerative disease in the affected individuals.
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Affiliation(s)
- Frederike L Harms
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jessica Erin Rexach
- Department of Neurology, Program in Neurogenetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Stephanie Efthymiou
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Busra Aynekin
- Department of Neuromuscular Disorders, UCL Queen Square Institute of Neurology, London, WC1N 3BG, UK
| | - Hüseyin Per
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Ayten Güleç
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
| | - Sheela Nampoothiri
- Department of Pediatric Genetics, Amrita Institute of Medical Sciences and Research Centre, Cochin, Kerala, India
| | - Hugo Sampaio
- Department of Women and Children's Health, University of New South Wales, Randwick Campus, Randwick, NSW, Australia
- Sydney Children's Hospital, Randwick, NSW, Australia
| | - Rani Sachdev
- Centre for Clinical Genetics, Sydney Children's Hospital, Randwick, NSW, Australia
- School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia
| | - Radka Stoeva
- Department of Medical Genetics, Le Mans Hospital, Le Mans, France
| | - Kasiani Myers
- Division of Bone Marrow Transplant, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Loren D M Pena
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Theodosia A Kalfa
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Marisa Chard
- Provincial Medical Genetics Program, Newfoundland and Labrador Health Services, St. John's, NL, Canada
- Department of Pediatrics, Memorial University Faculty of Medicine, St. John's, NL, Canada
| | - Megan Klassen
- Provincial Medical Genetics Program, Newfoundland and Labrador Health Services, St. John's, NL, Canada
| | - Megan Pries
- Provincial Medical Genetics Program, Newfoundland and Labrador Health Services, St. John's, NL, Canada
| | - Kerstin Kutsche
- Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Perrone E, Coelho AVC, Virmond LDA, Espolaor JGDA, Filho JBDO, Nascimento ATBD, Matta MCD, Meira JGC, Cardoso-Júnior LM, Andrade ACM, Chaves RZT, Acosta AX. ELMO2 biallelic pathogenic variants in a patient with gingival hypertrophy and cherubism phenotype: Case report and molecular review. Am J Med Genet A 2024:e63602. [PMID: 38517102 DOI: 10.1002/ajmg.a.63602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024]
Abstract
Ramon syndrome (OMIM #266270) was first described in a patient with cherubism, gingival fibromatosis, epilepsy, intellectual disability, hypertrichosis, and stunted growth. In 2018, Mehawej et al. described a patient with Ramon syndrome in whom a homozygous variant in ELMO2 was identified, suggesting that this gene may be the causative for this syndrome. ELMO2 biallelic pathogenic variants were also described in patients with a primary intraosseous vascular malformation (PIVM; OMIM #606893). These patients presented gingival bleeding and cherubism phenotype. Herein, a patient with gingival hypertrophy, neurodevelopmental delay, and cherubism phenotype with a novel homozygous predicted loss-of-function (LOF) variant in the ELMO2 gene and family recurrence was reported. A surgical approach to treat gingival bleeding and mandible vascular malformation was also described. Furthermore, this study includes a comprehensive literature review of molecular data regarding the ELMO2 gene. All the variants, except one described in the ELMO2, were predicted as LOF, including our patient's variant. There is an overlapping between PIVM, also caused by LOF biallelic variants in the ELMO2 gene, and Ramon syndrome, which can suggest that they are not different entities. However, due to a limited number of cases described with molecular evaluation, it is hard to establish a genotype-phenotype correlation. Our study supports that LOF pathogenic biallelic variants in the ELMO2 gene cause a phenotype that has cherubism and gingival hypertrophy as main characteristics.
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Affiliation(s)
- Eduardo Perrone
- Hospital Israelita Albert Einstein, São Paulo, São Paulo, Brazil
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | - Jessica Grasiela de Araujo Espolaor
- Hospital Israelita Albert Einstein, São Paulo, São Paulo, Brazil
- Departamento de Morfologia e Genética, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | | | | | - Joanna Goes Castro Meira
- Serviço de Genética Médica do Hospital Universitário Professor Edgard Santos (HUPES), Bahia, Brazil
| | | | | | | | - Angelina Xavier Acosta
- Serviço de Genética Médica do Hospital Universitário Professor Edgard Santos (HUPES), Bahia, Brazil
- Departamento de Pediatria da Faculdade de Medicina da Bahia, Universidade Federal da Bahia, Bahia, Brazil
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3
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Xiong C, Wang Y, Li Y, Yu J, Wu S, Wu L, Zhang B, Chen Y, Gan P, Liao H. Identification of optimal feature genes in patients with thyroid associated ophthalmopathy and their relationship with immune infiltration: a bioinformatics analysis. Front Endocrinol (Lausanne) 2023; 14:1203120. [PMID: 37900130 PMCID: PMC10611488 DOI: 10.3389/fendo.2023.1203120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/25/2023] [Indexed: 10/31/2023] Open
Abstract
Background Thyroid associated ophthalmopathy (TAO) is an organ-specific autoimmune disease that has a significant impact on individuals and society. The etiology of TAO is complicated and poorly understood. Thus, the goal of this study was to use bioinformatics to look into the pathogenesis of TAO and to identify the optimum feature genes (OFGs) and immune infiltration patterns of TAO. Methods Firstly, the GSE58331 microarray data set was utilized to find 366 differentially expressed genes (DEGs). To find important modular genes, the dataset was evaluated using weighted gene coexpression network analysis (WGCNA). Then, the overlap genes of major module genes and DEGs were further assessed by applying three machine learning techniques to find the OFGs. The CIBERSORT approach was utilized to examine immune cell infiltration in normal and TAO samples, as well as the link between optimum characteristic genes and immune cells. Finally, the related pathways of the OFGs were predicted using single gene set enrichment analysis (ssGSEA). Results KLB, TBC1D2B, LINC01140, SGCG, TMEM37, and LINC01697 were the six best feature genes that were employed to create a nomogram with high predictive performance. The immune cell infiltration investigation revealed that the development of TAO may include memory B cells, T cell follicular helper cells, resting NK cells, macrophages of type M0, macrophages of type M1, resting dendritic cells, active mast cells, and neutrophils. In addition, ssGSEA results found that these characteristic genes were closely associated with lipid metabolism pathways. Conclusion In this research, we found that KLB, TBC1D2B, LINC01140, SGCG, TMEM37, and LINC01697 are intimately associated with the development and progression of TAO, as well as with lipid metabolism pathways.
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Affiliation(s)
- Chao Xiong
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Yaohua Wang
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Yue Li
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Jinhai Yu
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Sha Wu
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Lili Wu
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Boyuan Zhang
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Yunxiu Chen
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Puying Gan
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
| | - Hongfei Liao
- Department of Ophthalmology, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi, China
- Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi, China
- Jiangxi Research Institute of Ophthalmology and Visual Science, Nanchang, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang, Jiangxi, China
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Wu A, Ye M, Ma T, She Z, Li R, Shi H, Yang L, Yi M, Li H. TBC1D25 alleviates nonalcoholic steatohepatitis by inhibiting abnormal lipid accumulation and inflammation. J Cell Physiol 2023; 238:393-406. [PMID: 36710714 DOI: 10.1002/jcp.30934] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/30/2022] [Accepted: 12/06/2022] [Indexed: 01/31/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a strong stimulant of cardiovascular diseases, affecting one-quarter of the world's population. TBC1 domain family member 25 (TBC1D25) regulates the development of myocardial hypertrophy and cerebral ischemia-reperfusion injury; however, its effect on NAFLD/nonalcoholic steatohepatitis (NASH) has not been reported. In this study, we demonstrated that TBC1D25 expression is upregulated in NASH. TBC1D25 deficiency aggravated hepatic steatosis, inflammation, and fibrosis in NASH. In vitro tests revealed that TBC1D25 overexpression restrained NASH responses. Subsequent mechanistic validation experiments demonstrated that TBC1D25 interfered with NASH progression by inhibiting abnormal lipid accumulation and inflammation. TBC1D25 deficiency significantly promoted NASH occurrence and development. Therefore, TBC1D25 may potentially be used as a clinical therapeutic target for NASH treatment.
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Affiliation(s)
- Anding Wu
- Department of General Surgery, Huanggang Central Hospital, Huanggang, China
| | - Mao Ye
- Department of Cardiology, HuangGang Central Hospital, Huanggang, China
| | - Tengfei Ma
- Department of Neurology, Huanggang Central Hospital, Huanggang, China
| | - Zhigang She
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ruyan Li
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Hongjie Shi
- Huanggang Institute of Translational Medicine, Huanggang, China
| | - Ling Yang
- Huanggang Institute of Translational Medicine, Huanggang, China
| | - Maolin Yi
- Surgery of Mammary Gland and Thyroid Gland, Huanggang Central Hospital, Huanggang, China
| | - Huoping Li
- Department of Cardiology, HuangGang Central Hospital, Huanggang, China
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5
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Correia-Costa GR, de Leeuw N, Pfundt R, Sgardioli IC, Dos Santos AP, de Lima Santos M, Gil-da-Silva-Lopes VL, Vieira TP. Biallelic frameshift variant in the TBC1D2B gene in two siblings with progressive gingival overgrowth, fibrous dysplasia of face, and mental deterioration. Clin Genet 2022; 102:537-542. [PMID: 36029130 DOI: 10.1111/cge.14215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 01/27/2023]
Abstract
Biallelic loss-of-function variants in the TBC1D2B gene were recently reported as a cause of a neurodevelopmental disorder with seizures and gingival overgrowth. Here, we report two male siblings with the similar clinical characteristics. They started with gingival overgrowth and bilateral growth of soft tissues in the malar region at 3 years of age, which evolved with significant maxillary hypertrophy and compression of the brainstem due to fibrous dysplasia of facial bones. After disease evolution, they presented with mental deterioration, limb tremors, and gait ataxia. One of them also presented with seizures. Whole exome sequencing revealed a novel biallelic frameshift variant [c.595del; p.(Val199Trpfs*22)] in the TBC1D2B gene in both patients, which was confirmed and found in heterozygous state in each of their parents. There are strong similarities in clinical characteristics, age of onset, and evolution between the patients described here and cases reported in the literature, including cherubism-like phenotype with progressive gingival overgrowth and seizures. This is the fourth family in the world in which a biallelic loss-of-function variant in the TBC1D2B gene is associated with this phenotype. These results support that loss of TBC1D2B is the cause of this rare condition.
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Affiliation(s)
- Gabriela Roldão Correia-Costa
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Nicole de Leeuw
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Rolph Pfundt
- Department of Human Genetics, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ilária Cristina Sgardioli
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Ana Paula Dos Santos
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Marilza de Lima Santos
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Vera Lúcia Gil-da-Silva-Lopes
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Társis Paiva Vieira
- Department of Translational Medicine - Laboratory of Human Cytogenetics and Cytogenomics, School of Medical Sciences, State University of Campinas, São Paulo, Brazil
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6
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An analysis of the significance of the Tre2/Bub2/CDC 16 (TBC) domain protein family 8 in colorectal cancer. Sci Rep 2022; 12:13245. [PMID: 35918393 PMCID: PMC9345998 DOI: 10.1038/s41598-022-15629-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 06/27/2022] [Indexed: 11/09/2022] Open
Abstract
The TBC (Tre-2/Bub2/Cdc16, TBC) structural domain is now considered as one of the factors potentially regulating tumor progression. However, to date, studies on the relationship between TBC structural domains and tumors are limited. In this study, we identified the role of TBC1 domain family member 8 (TBC1D8) as an oncogene in colorectal cancer (CRC) by least absolute shrinkage and selection operator (LASSO) and Cox regression analysis, showing that TBC1D8 may independently predict CRC outcome. Functional enrichment and single-cell analysis showed that TBC1D8 levels were associated with hypoxia. TBC1D8 levels were also positively correlated with M2 macrophage infiltration, which may have a complex association with hypoxia. Taken together, these results show that the TBC1D8 gene is involved in colorectal carcinogenesis, and the underlying molecular mechanisms may include hypoxia and immune cell infiltration.
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Liu J, Geng R, Yang S, Shao F, Zhong Z, Yang M, Ni S, Cai L, Bai J. Development and Clinical Validation of Novel 8-Gene Prognostic Signature Associated With the Proportion of Regulatory T Cells by Weighted Gene Co-Expression Network Analysis in Uterine Corpus Endometrial Carcinoma. Front Immunol 2021; 12:788431. [PMID: 34970268 PMCID: PMC8712567 DOI: 10.3389/fimmu.2021.788431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 11/22/2021] [Indexed: 01/04/2023] Open
Abstract
Background Uterine corpus endometrial carcinoma (UCEC) is a gynecological malignant tumor with low survival rate and poor prognosis. The traditional clinicopathological staging is insufficient to estimate the prognosis of UCEC. It is necessary to select a more effective prognostic signature of UCEC to predict the prognosis and immunotherapy effect of UCEC. Methods CIBERSORT and weighted correlation network analysis (WGCNA) algorithms were combined to screen modules related to regulatory T (Treg) cells. Subsequently, univariate, least absolute shrinkage and selection operator (LASSO), and multivariate Cox regression analyses were used to identify the genes in key modules. The difference in overall survival (OS) between high- and low-risk patients was analyzed by Kaplan-Meier analysis. The Tregs-related risk signature (TRRS) was screened by uni- and multivariate Cox analyses. Afterward, we analyzed the expression difference of TRRS and verified its ability to predict the prognosis of UCEC and the effect of immunotherapy. Results Red module has the highest correlation with Tregs among all clustered modules. Pathways enrichment indicated that the related processes of UCEC were primarily associated to the immune system. Eight genes (ZSWIM1, NPRL3, GOLGA7, ST6GALNAC4, CDC16, ITPK1, PCSK4, and CORO1B) were selected to construct TRRS. We found that this TRRS is a significantly independent prognostic factor of UCEC. Low-risk patients have higher overall survival than high-risk patients. The immune status of different groups was different, and tumor-related pathways were enriched in patients with higher risk score. Low-risk patients are more likely take higher tumor mutation burden (TMB). Meanwhile, they are more sensitive to chemotherapy than patients with high-risk score, which indicated a superior prognosis. Immune checkpoints such as PD-1, CTLA4, PD-L1, and PD-L2 all had a higher expression level in low-risk group. TRRS expression really has a relevance with the sensitivity of UCEC patients to chemotherapeutic drugs. Conclusion We developed and validated a TRRS to estimate the prognosis and reflect the immune status of UCEC, which could accurately assess the prognosis of patients with UCEC and supply personalized treatments for them.
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Affiliation(s)
- Jinhui Liu
- Department of Gynecology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Rui Geng
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Sheng Yang
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Fang Shao
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Zihang Zhong
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Min Yang
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Senmiao Ni
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Lixin Cai
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
| | - Jianling Bai
- Department of Biostatistics, School of Public Heath, Nanjing Medical University, Nanjing, China
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8
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Zhang Z, Ma T, Fu Z, Feng Y, Wang Z, Tian S, Liu Z, Wei W, Li X, Chen J, Zhao W. TBC1Domain Family Member 25 deficiency aggravates cerebral ischemia-reperfusion injury via TAK1-JNK/p38 pathway. J Neurochem 2021; 160:392-411. [PMID: 34837397 DOI: 10.1111/jnc.15546] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 12/11/2022]
Abstract
TBC1Domain Family Member 25 (TBC1D25) is a protein that contains a TBC/RAB-GTPase activating protein (GAP) domain, which was shown to participate in autophagy in previous studies. However, the role of TBC1D25 in cerebral ischemia-reperfusion (I/R) injury remains unknown. In this study, we found that the mRNA and protein expression levels of TBC1D25 decreased in mouse brain after I/R injury and primary cortical neurons treated with oxygen and glucose deprivation/reoxygenation (OGD/R). Then TBC1D25 knockout (KO) mice were applied to demonstrate that TBC1D25 ablation aggravated cerebral I/R-induced neuronal loss and infarct size. In addition, neuronal apoptosis and inflammation were significantly potentiated in the TBC1D25-KO group. In in vitro OGD/R model, TBC1D25 knockdown can attenuate neuronal cell viability and aggravate the process of inflammation and apoptosis. Conversely, over-expression of TBC1D25 in primary neurons ameliorated the aforementioned processes. Mechanistically, RNA-sequencing (RNA-seq) analysis revealed mitogen-activated protein kinase (MAPK) signaling pathway was the most significant pathway that contributed to TBC1D25-mediated brain I/R injury process. Through experimental verification, TBC1D25 deficiency increased the phosphorylation of the transforming growth factor-β-activated kinase 1 (TAK1)-c-Jun N-terminal kinase (JNK)/p38 axis in neurons during the brain I/R injury. Furthermore, we found that TAK1 blockade abrogated the apoptosis and inflammatory response produced by TBC1D25 knockdown in vitro. In conclusion, this study is the first to demonstrate the functional significance of TBC1D25 in the pathophysiology of brain I/R injury, and the protective mechanism of TBC1D25 is dependent on the TAK1-JNK/p38 pathway.
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Affiliation(s)
- Zongyong Zhang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Tengfei Ma
- Department of Neurology, Huanggang Central Hospital, Huanggang, China.,Huanggang Institute of Translational Medicine, Huanggang Central Hospital, Huanggang, China
| | - Zhengyi Fu
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Yu Feng
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Zhen Wang
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Song Tian
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhen Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Wei
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Xiang Li
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.,Medical Research Institute, Wuhan University, Wuhan, China
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Wenyuan Zhao
- Department of Neurosurgery, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China.,Department of Neurosurgery, Huanggang Central Hospital, Huanggang, China
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9
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Schneeberger PE, von Elsner L, Barker EL, Meinecke P, Marquardt I, Alawi M, Steindl K, Joset P, Rauch A, Zwijnenburg PJ, Weiss MM, Merry CL, Kutsche K. Bi-allelic Pathogenic Variants in HS2ST1 Cause a Syndrome Characterized by Developmental Delay and Corpus Callosum, Skeletal, and Renal Abnormalities. Am J Hum Genet 2020; 107:1044-1061. [PMID: 33159882 DOI: 10.1016/j.ajhg.2020.10.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Abstract
Heparan sulfate belongs to the group of glycosaminoglycans (GAGs), highly sulfated linear polysaccharides. Heparan sulfate 2-O-sulfotransferase 1 (HS2ST1) is one of several specialized enzymes required for heparan sulfate synthesis and catalyzes the transfer of the sulfate groups to the sugar moiety of heparan sulfate. We report bi-allelic pathogenic variants in HS2ST1 in four individuals from three unrelated families. Affected individuals showed facial dysmorphism with coarse face, upslanted palpebral fissures, broad nasal tip, and wide mouth, developmental delay and/or intellectual disability, corpus callosum agenesis or hypoplasia, flexion contractures, brachydactyly of hands and feet with broad fingertips and toes, and uni- or bilateral renal agenesis in three individuals. HS2ST1 variants cause a reduction in HS2ST1 mRNA and decreased or absent heparan sulfate 2-O-sulfotransferase 1 in two of three fibroblast cell lines derived from affected individuals. The heparan sulfate synthesized by the individual 1 cell line lacks 2-O-sulfated domains but had an increase in N- and 6-O-sulfated domains demonstrating functional impairment of the HS2ST1. As heparan sulfate modulates FGF-mediated signaling, we found a significantly decreased activation of the MAP kinases ERK1/2 in FGF-2-stimulated cell lines of affected individuals that could be restored by addition of heparin, a GAG similar to heparan sulfate. Focal adhesions in FGF-2-stimulated fibroblasts of affected individuals concentrated at the cell periphery. Our data demonstrate that a heparan sulfate synthesis deficit causes a recognizable syndrome and emphasize a role for 2-O-sulfated heparan sulfate in human neuronal, skeletal, and renal development.
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