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Meng LB, Hu GF, Lv T, Lv C, Liu L, Zhang P. Higher expression of TSR2 aggravating hypertension via the PPAR signaling pathway. Aging (Albany NY) 2024; 16:8980-8997. [PMID: 38814181 PMCID: PMC11164513 DOI: 10.18632/aging.205852] [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: 08/30/2023] [Accepted: 12/07/2023] [Indexed: 05/31/2024]
Abstract
Hypertension is a complex disease with unknown causes. Therefore, it's crucial to deeply study its molecular mechanism. The hypertension dataset was obtained from Gene Expression Omnibus data base (GEO), and miRNA regulating central hub genes was screened via weighted gene co-expression network (DEGs) and gene set enrichment (GSEA). Cell experiments validated TSR2's role and the PPAR signaling pathway through western blotting. 500 DEGs were identified for hypertension, mainly enriched in actin cross-linking, insulin signaling, PPAR signaling, and protein localization. Eight hub genes (SEC61G, SRP14, Liy AR, NIP7, SDAD1, POLR1D, DYNLL2, TSR2) were identified. Four hub genes (LYAR, SDAD1, POLR1D, TSR2) exhibited high expression levels in the hypertensive tissue samples, while showing low expression levels in the normal tissue samples. This led us to speculate that they may have relevant regulatory effects on hypertension. When TSR2 was knocked down in the hypertension peripheral blood mononuclear cells (PBMC) model, the critical proteins in the PPAR signaling pathway (FABP, PPAR, PLTP, ME1, SCD1, CYP27, FABP1, OLR1, CPT-1, PGAR, CAP, ADIPO, MMP1, UCP1, ILK, PDK1 UBC AQP7) were downregulated. This also occurred in the hypertension peripheral blood mononuclear cells (PBMC) + TSR2_ OV model. TSR2 is highly expressed in individuals with hypertension and may play a significant role in the development of hypertension through the PPAR signaling pathway. TSR2 could serve as a molecular target for the early diagnosis and precise treatment of hypertension, providing a valuable direction for the mechanism research of this condition.
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Affiliation(s)
- Ling-Bing Meng
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Gai-Feng Hu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, National Clinical Research Center for Cardiovascular Diseases, Chaoyang 100029, Beijing, China
| | - Tingting Lv
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Changhua Lv
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Lianfeng Liu
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Ping Zhang
- Department of Cardiology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
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2
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Zmijewska A, Czelejewska W, Drzewiecka EM, Franczak A. Transcriptome profile of the anterior pituitary gland in pigs during maternal recognition of pregnancy. Theriogenology 2023; 197:310-321. [PMID: 36542881 DOI: 10.1016/j.theriogenology.2022.11.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 12/02/2022]
Abstract
The activity of the pituitary gland determines the success of female reproduction. The knowledge regarding the reproductive-status-related changes in the transcriptome of the porcine pituitary is limited. This study aimed to determine and compare the transcriptome profile of the pituitary gland collected from pigs during maternal recognition of pregnancy, i.e. on days 12-13 of pregnancy and during the respective days of the estrous cycle. Analysis indicated 482 differentially expressed genes (DEGs) with an FC > 1.5 (P < 0.05) in the pituitary of pregnant vs. estrous-cyclic pigs. Among them, 68 were up-regulated and 414 were down-regulated. The evaluated DEGs were annotated into 39 gene ontology (GO) biological process terms, 13 GO cellular component terms, and 10 GO molecular function terms. Among the evaluated DEGs were selected genes coding for proteins potentially involved in the regulation of early pregnancy in pigs and used for gene interaction analysis and validation of microarray results. An analysis of the relationships among DEGs in pituitaries collected during maternal recognition of pregnancy showed that some of them are connected with, for example, TGFβ signaling pathway, PRL synthesis, adipocytokines pathway and immune response during maternal recognition of pregnancy. These findings expand the knowledge regarding the molecular mechanisms appearing in the porcine pituitary during the maternal recognition period of pregnancy.
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Affiliation(s)
- Agata Zmijewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski 1A, 10-719, Olsztyn, Poland.
| | - Wioleta Czelejewska
- Department of Human Histology and Embryology, School of Medicine, Collegium Medicum, University of Warmia and Mazury in Olsztyn, Warszawska 30, 10-082, Olsztyn, Poland
| | - Ewa M Drzewiecka
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski 1A, 10-719, Olsztyn, Poland
| | - Anita Franczak
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowski 1A, 10-719, Olsztyn, Poland
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Sepúlveda V, Maurelia F, González M, Aguayo J, Caprile T. SCO-spondin, a giant matricellular protein that regulates cerebrospinal fluid activity. Fluids Barriers CNS 2021; 18:45. [PMID: 34600566 PMCID: PMC8487547 DOI: 10.1186/s12987-021-00277-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/11/2021] [Indexed: 12/28/2022] Open
Abstract
Cerebrospinal fluid is a clear fluid that occupies the ventricular and subarachnoid spaces within and around the brain and spinal cord. Cerebrospinal fluid is a dynamic signaling milieu that transports nutrients, waste materials and neuroactive substances that are crucial for the development, homeostasis and functionality of the central nervous system. The mechanisms that enable cerebrospinal fluid to simultaneously exert these homeostatic/dynamic functions are not fully understood. SCO-spondin is a large glycoprotein secreted since the early stages of development into the cerebrospinal fluid. Its domain architecture resembles a combination of a matricellular protein and the ligand-binding region of LDL receptor family. The matricellular proteins are a group of extracellular proteins with the capacity to interact with different molecules, such as growth factors, cytokines and cellular receptors; enabling the integration of information to modulate various physiological and pathological processes. In the same way, the LDL receptor family interacts with many ligands, including β-amyloid peptide and different growth factors. The domains similarity suggests that SCO-spondin is a matricellular protein enabled to bind, modulate, and transport different cerebrospinal fluid molecules. SCO-spondin can be found soluble or polymerized into a dynamic threadlike structure called the Reissner fiber, which extends from the diencephalon to the caudal tip of the spinal cord. Reissner fiber continuously moves caudally as new SCO-spondin molecules are added at the cephalic end and are disaggregated at the caudal end. This movement, like a conveyor belt, allows the transport of the bound molecules, thereby increasing their lifespan and action radius. The binding of SCO-spondin to some relevant molecules has already been reported; however, in this review we suggest more than 30 possible binding partners, including peptide β-amyloid and several growth factors. This new perspective characterizes SCO-spondin as a regulator of cerebrospinal fluid activity, explaining its high evolutionary conservation, its apparent multifunctionality, and the lethality or severe malformations, such as hydrocephalus and curved body axis, of knockout embryos. Understanding the regulation and identifying binding partners of SCO-spondin are crucial for better comprehension of cerebrospinal fluid physiology.
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Affiliation(s)
- Vania Sepúlveda
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Felipe Maurelia
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Maryori González
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Jaime Aguayo
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Teresa Caprile
- Departamento de Biología Celular, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile.
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Gipson GR, Goebel EJ, Hart KN, Kappes EC, Kattamuri C, McCoy JC, Thompson TB. Structural perspective of BMP ligands and signaling. Bone 2020; 140:115549. [PMID: 32730927 PMCID: PMC7502536 DOI: 10.1016/j.bone.2020.115549] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 06/30/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022]
Abstract
The Bone Morphogenetic Proteins (BMPs) are the largest class signaling molecules within the greater Transforming Growth Factor Beta (TGFβ) family, and are responsible for a wide array of biological functions, including dorsal-ventral patterning, skeletal development and maintenance, as well as cell homeostasis. As such, dysregulation of BMPs results in a number of diseases, including fibrodysplasia ossificans progressiva (FOP) and pulmonary arterial hypertension (PAH). Therefore, understanding BMP signaling and regulation at the molecular level is essential for targeted therapeutic intervention. This review discusses the recent advances in the structural and biochemical characterization of BMPs, from canonical ligand-receptor interactions to co-receptors and antagonists. This work aims to highlight how BMPs differ from other members of the TGFβ family, and how that information can be used to further advance the field. Lastly, this review discusses several gaps in the current understanding of BMP structures, with the aim that discussion of these gaps will lead to advancements in the field.
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Affiliation(s)
- Gregory R Gipson
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Erich J Goebel
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Kaitlin N Hart
- Department of Pharmacology and Systems Physiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Emily C Kappes
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Chandramohan Kattamuri
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Jason C McCoy
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA
| | - Thomas B Thompson
- Department of Molecular Genetics, Biochemistry, and Microbiology, University of Cincinnati, Medical Sciences Building, Cincinnati, OH 45267, USA.
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Wu C, Shao X, Lin X, Gao W, Fang Y, Wang J. Surface modification of titanium with collagen/hyaluronic acid and bone morphogenetic protein 2/7 heterodimer promotes osteoblastic differentiation. Dent Mater J 2020; 39:1072-1079. [PMID: 33028783 DOI: 10.4012/dmj.2019-249] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the effects of a collagen/hyaluronic acid coating without or with incorporated heterodimeric bone morphogenetic protein 2/7 (BMP2/7) on in-vitro osteoblastic differentiation on titanium discs. The multilayer collagen/hyaluronic acid coatings without or without incorporated BMP2/7 were deposited on titanium discs via a layer-by-layer technique. The effects of the coatings were evaluated by assessing the alkaline phosphatase (ALP) activity (an early osteoblastic differentiation marker) and the osteocalcin expression (a late osteoblastic differentiation marker). The expression levels of the osteoblastic genes, such as alkaline phosphatase 2 (AKP2) and osteocalcin (OC) were detected using real-time RT-PCR. ALP activity and OC expression were significantly increased when cells were cultured with collagen/hyaluronic acid+BMP2/7 heterodimer (p<0.05). The same result was found in cells with the expression of a BMP2/7 fusion gene, OC and AKP2. These results indicated that collagen/hyaluronic acid+BMP2/7 heterodimer-coated discs might have the potential to greatly enhance osseointegration than a either BMP2 or BMP7 solution or a mixture of BMP2 and BMP7 BMP2/7.
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Affiliation(s)
- Chengzhong Wu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Xia Shao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Xianglin Lin
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Weijin Gao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Yiming Fang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
| | - Jingxiao Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Wenzhou Medical University
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Xinqiang S, Erqin D, Yu Z, Hongtao D, Lei W, Ningning Y. Potential mechanisms of action of celastrol against rheumatoid arthritis: Transcriptomic and proteomic analysis. PLoS One 2020; 15:e0233814. [PMID: 32726313 PMCID: PMC7390347 DOI: 10.1371/journal.pone.0233814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/06/2020] [Indexed: 12/25/2022] Open
Abstract
The clinical efficacy for treating of celastrol rheumatoid arthritis (RA) has been well-documented, but its mechanism of action remains unclear. Here we explored through what proteins and processes celastrol may act in activated fibroblast-like synoviocytes (FLS) from RA patients. Differential expression of genes and proteins after celastrol treatment of FLS was examined using RNA sequencing, label-free relatively quantitative proteomics and molecular docking. In this paper, expression of 26,565 genes and 3,372 proteins was analyzed. Celastrol was associated with significant changes in genes that respond to oxidative stress and oxygen levels, as well as genes that stabilize or synthesize components of the extracellular matrix. These results identify several potential mechanisms through which celastrol may inhibit inflammation in RA.
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MESH Headings
- Anti-Inflammatory Agents/pharmacology
- Anti-Inflammatory Agents/therapeutic use
- Arthritis, Rheumatoid/drug therapy
- Arthritis, Rheumatoid/genetics
- Arthritis, Rheumatoid/pathology
- Cells, Cultured
- Chromatography, Liquid
- Gene Expression Regulation/drug effects
- Gene Ontology
- High-Throughput Nucleotide Sequencing
- Humans
- Models, Molecular
- Molecular Docking Simulation
- Pentacyclic Triterpenes
- Proteomics/methods
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Spectrometry, Mass, Electrospray Ionization
- Synoviocytes/drug effects
- Synoviocytes/metabolism
- Tandem Mass Spectrometry
- Transcriptome/drug effects
- Triterpenes/pharmacology
- Triterpenes/therapeutic use
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Affiliation(s)
- Song Xinqiang
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
- Institute for Conservation and Utilization of Agro-Bioresources in Dabie Mountains, Xinyang, China
- * E-mail: (SX); (YN)
| | - Dai Erqin
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
| | - Zhang Yu
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
| | - Du Hongtao
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
| | - Wang Lei
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
| | - Yang Ningning
- Department of Biological Sciences, Xinyang Normal University, Xinyang, China
- * E-mail: (SX); (YN)
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Saha A, Patel S, Xu L, Scotland P, Schwartzman J, Filiano AJ, Kurtzberg J, Balber AE. Human umbilical cord blood monocytes, but not adult blood monocytes, rescue brain cells from hypoxic-ischemic injury: Mechanistic and therapeutic implications. PLoS One 2019; 14:e0218906. [PMID: 31483780 PMCID: PMC6726370 DOI: 10.1371/journal.pone.0218906] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/13/2019] [Indexed: 12/20/2022] Open
Abstract
Cord blood (CB) mononuclear cells (MNC) are being tested in clinical trials to treat hypoxic-ischemic (HI) brain injuries. Although early results are encouraging, mechanisms underlying potential clinical benefits are not well understood. To explore these mechanisms further, we exposed mouse brain organotypic slice cultures to oxygen and glucose deprivation (OGD) and then treated the brain slices with cells from CB or adult peripheral blood (PB). We found that CB-MNCs protect neurons from OGD-induced death and reduced both microglial and astrocyte activation. PB-MNC failed to affect either outcome. The protective activities were largely mediated by factors secreted by CB-MNC, as direct cell-to-cell contact between the injured brain slices and CB cells was not essential. To determine if a specific subpopulation of CB-MNC are responsible for these protective activities, we depleted CB-MNC of various cell types and found that only removal of CB CD14+ monocytes abolished neuroprotection. We also used positively selected subpopulations of CB-MNC and PB-MNC in this assay and demonstrated that purified CB-CD14+ cells, but not CB-PB CD14+ cells, efficiently protected neuronal cells from death and reduced glial activation following OGD. Gene expression microarray analysis demonstrated that compared to PB-CD14+ monocytes, CB-CD14+ monocytes over-expressed several secreted proteins with potential to protect neurons. Differential expression of five candidate effector molecules, chitinase 3-like protein-1, inhibin-A, interleukin-10, matrix metalloproteinase-9 and thrombospondin-1, were confirmed by western blotting, and immunofluorescence. These findings suggest that CD14+ monocytes are a critical cell-type when treating HI with CB-MNC.
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Affiliation(s)
- Arjun Saha
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
- * E-mail:
| | - Sachit Patel
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Li Xu
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Paula Scotland
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Jonathan Schwartzman
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Anthony J. Filiano
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Joanne Kurtzberg
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
| | - Andrew E. Balber
- Marcus Center for Cellular Cures (MC3), Duke University School of Medicine, Durham, North Carolina, United States of America
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